CA2101880A1 - Implant - Google Patents
ImplantInfo
- Publication number
- CA2101880A1 CA2101880A1 CA002101880A CA2101880A CA2101880A1 CA 2101880 A1 CA2101880 A1 CA 2101880A1 CA 002101880 A CA002101880 A CA 002101880A CA 2101880 A CA2101880 A CA 2101880A CA 2101880 A1 CA2101880 A1 CA 2101880A1
- Authority
- CA
- Canada
- Prior art keywords
- bearing
- spindle
- articulated
- bearing bush
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7044—Screws or hooks combined with longitudinal elements which do not contact vertebrae also having plates, staples or washers bearing on the vertebrae
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
- A61B17/7005—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in the screw or hook heads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
Abstract
ABSTRACT OF THE DISCLOSURE
An implant (1) for the spinal column for fixing the vertebrae, especially the cervical vertebra, on the anterior side, i.e., on the side of the esophagus,wherein the implant has screw holes for screwing together with the vertebra and has a multi-component design, and has at least two mounting plates (3.1, 3.2), which are provided with at least two screw holes (2). The mounting plates are connected by means of an articulated bearing (4) each to a spindle (5) having right-hand and left-hand, self-locking threads with an angular shaft piece (5.1) for actuating the spindle, wherein the mounting plates have a ribbed area (6) on the side facing the vertebral bone W.
An implant (1) for the spinal column for fixing the vertebrae, especially the cervical vertebra, on the anterior side, i.e., on the side of the esophagus,wherein the implant has screw holes for screwing together with the vertebra and has a multi-component design, and has at least two mounting plates (3.1, 3.2), which are provided with at least two screw holes (2). The mounting plates are connected by means of an articulated bearing (4) each to a spindle (5) having right-hand and left-hand, self-locking threads with an angular shaft piece (5.1) for actuating the spindle, wherein the mounting plates have a ribbed area (6) on the side facing the vertebral bone W.
Description
1018~
FIELD OF THE INVENTION ` ~ ;
The present invention pertains to an implant for the spinal column for ~:
fi~ing the vertebrae, especiaUy the cervical vertebrae, on the anterior side, i.e., on the esophageal side wherein the implant has screw holes for screwing to the vertebrae.
s BACKGROUND OFTHE INVENTION :
An implant that has become known as an example is essentially a metal band, on which lateral straps are arranged, and both the metal band and the 21018~
straps have screw holes, which are provided for accommodating bone screws.
These metal bands are available in different lengths to ensure that they can be selected corresponding to the physical conditions of a given patient.
The vertebrae are fixed with such band-like implants by screwing the 5 implant onto a vertebra, after a so-called bed for the implant has been created on the surface of the vertebra by, e.g., milling off the vertebral bone W in order to prepare a corresponding support surface for the band-like implant~
A bed also must be formed on the adjacent vertebra to be fixed in order to subsequently screw this vertebra together with the band-lilce implant in the 10 medically necessarypositionof thevertebra The disadvantage of such a band-lilce implant is that these procedures are to be performed under surgical conditions and they also require removal of the bone chips and the lil~e, generated during the preparation of the two beds for the band-lilce implants Moreover, the heads of the bone screws 15 usually project from the vertebra together with the band-like implant, which leads to unpleasant, symptom-producing accompanying phenomena, especially in the area of the esophagus. In addition, it may be necessary, depending on the location of the vertebrae or their damage, to provide a washer between the band-lilce implant and one vertebra or both vertebrae in order to achieve a 20 medically suitable fixation. In particular, the site at which the bone screws are screwed in cannot be selected solely based on medical criteria, because the screw holes in the band-like implant are permanently predetermined, as a result of which fixation cannot be always performed in a medicaDy optimal manner. This may lead to a 1imitation of the medically necessaly measures, especially in the case of osteoporosis, because the location of the screw holes 5 must be selected in this case so as to ensure that they will not break out.
There also is a risk of breaking out especially in the case of screw holes in peripheral zones of the vertebra, which frequently must be used in the case of the band-like implant, because precisely the screw holes are permanent~
predetermined by their distances on the band-like implant. Moreover, it is 10 necessary to keep in stock the different, medically necessary sizes of band-like implant.
SUMMARY AND OBJECIS OF THE INVENTION
The object of the present invention is to eliminate the disadvantages of prior-art band-like imp1ants and to provide an implant that makes possible the 15 medically conformal fixation or ventral cervical stabilization, with possibly optimal selection of the position of the bone screws, if possible, also to avoid hindrances for the patient, e.g., due to a reduction of the esophageal cross section, etc. It is also desirable to eliminate the need for additional auxiliary means, such as washers, etc., to achieve the medically optimal position. The 20 amount of preparation of the vertebral bone for installing the implant shall be as small as possible, or the need for such preparation should be eliminated - , '' altogether.
This object can be attained by the implant according to the present invention for the spinal column for fixing the vertebrae, especiaUy the cervical vertebrae, whereio the implant is of a multicomponent design and has at least S two mounting plates. The mounting plates are provided with screw holes and are connected, by means of an articulated bearing each, to a spindle. The spindle is provided with left hand and right hand threads with an angular shaft piece for actuating the spindle. The mounting plates have a ribbed area on the side facing the vertebral bone.
The mounting plate of a first variant is designed as a kidney-shaped, arched plate. With the mounting plate, the articulated bearing is made in one piece at one of its ends.
The mounting plate of a second variant is designed as a kidney-shaped, arched plate having a holding tab. The articulated bearing with the mounting 15 plate is made in one piece at one of its ends.
The articulated bearing may be formed of at least one bearing bush which has a spindle hole for the passage of the spindle, essentially at right angles to the longitudinal extension of the mounting plate. The bearing bush has a cylindrical inner waU. The articulate bearing also includes a cylindrical 20 bearing pin which can be inserted into the bearing bush. The bearing pin is provided with a hole with internal threads for engaging the spindle (for screwing in the spindle).
The articulated bearing may a}so be formed with the bearing bush having the spindle hole for passage of the spindle essentially at right angles to the longitudinal extension of the mounting plate and the inner cylindrical wall.
S The bearing pin may be a double truncated cone-shaped pin which can be inserted into the bearing bush and which again has a hole with internal threads for screwing in the spindle.
The articulated bearing may also include the bearing bush with the spindle hole and cylindrical inner wall and also a barrel-shaped bearing pin 10 which can be inserted into the bearing bush and has a hole with internal threads for screwing in the spindle. The bea~ing pin may also be spherical.
The spindle may be permanently screwed with its free ends into the bearing pin and may be provided with a pinched area acting as a securing means against screwing out at the threaded end.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred 20 embodiments of the invention are illustrated.
.' 2~0188~
BRIEF DESCRIPTION OF THE DRAWINGS
.!, In the drawings: ; `
Figure 1 is a frontview of a band-like implant according to the state of the art; .
Figure 2 is a side view of a band-like implant according to the state of the art; -.
Figure 3 is a top view of a band-like implant according to the state of the art; ~;
Figure 4 is a front view of a first variant of an implant according to the present invention;
Figure 5 is a side view of a first variant of an implant according to the present invention;
Figure 6 is an axonometric, disassembled representation of a first variant of an implant according to the present invention; ~ .
FiguTe 7 is a top view of the mounting plate of a first variant of an implant according to the present invention;
Figure 8 is a front view of a mounting variant of a first variant of an implant according to the present inveneion;
Figure 9 is a top view of a first variant of an implant according to the present i~vention, mounted on a cervical vertebra;
Figure 10 is a front view of a second type of a mounting plate of an 2101~
.~:
implant according to the present invention (second variant), which mounting plate is mounted on a cervical vertebra; and Figure 11 is a front view of an implant according to the present invention (variant with a plurality of articulated bearings) mounted on three 5 cervical vertebrae.
STATE OF THE ART
The implant BI according to the state of the art shown in Figures 1, 2 and 3 is essentially a metal band M, on which lateral straps L are arranged, and both the metal band M and the straps L have screw holes S, which are 10 provided for accommodating bone screws KS. The screw holes S and the straps L having the screw holes are arranged at f~ed distances, and the metal bands M are available in different lengths, so that they can be selected ~- ~
corresponding to the patient's physical conditions. Such a band-like implant :
BI requires a bed B on the vertebral bone W in order for it to be able to be 15 mounted. The mounting is performed by screwing the band-like implant onto the vertebral bone W. The bed B is prepared by, e.g., milling off the vertebral ~ -bone W. A bed B must also be formed on the adjacent vertebral bone W to be fixed in order to subsequently screw together this vertebral bone W with the band-like implant BI in the medically necessary vertebral position. The 20 narrowing of the esophagus SR caused by the band-like implant BI is shown in ~igures 2 and 3. In addition, fin~atio; with a band-like implant Bl by means - . - '';
21~1880 of a washer is shown in Figure 2.
DETAILED DESCRIPTION
OF THE PREFERRED EMBODIMENT
An implant 1 according to the present invention has at least two 5 mounting plates 3, which are adjustably connected -- by means of an articulated bearing 4 each, made in one piece with them -- to a spindle 5 screwed into the said bearings.
A mounting plate 3.1 in a first variant is designed as a kidney-shaped, arched plate, with which the said articulated bearing 4 is made in one piece 10 at one of its ends. It has, adjacent to the said articulated bearing 4, at least two screw holes 2, which are countersunk. On the side facing away from the said articulated bearing 4, the said kidney-shaped, arched plate has a ribbed area, with which the force generated by the rotation of the vertebrae in relation to one another during movements of the patient, on the one hand, 15 and that generated by the distortion of the vertebral bones W in relation to one another by means of the said spindle 5, on the other hand, caD be absorbed better and not solely by the said bone screws in the said screw holes 2.
A mounting plate 3.2 in a second variant (Figure 10) is designed just 20 like the said mounting plate 3.1 of the first variant, but it additionally has a holding tab 3.3, which projects from it at right angles to its longitudinal extension and is used to hold a vertebral spacer that may have been i~erted 21018g~
between the vertebrae or another, surgica~ly necessary irnplant against sliding out of the space bet veen the vertebrae.
In a modified version (Figure 11) of one of the two variants of the said mounting plate 3.1 or 3.2, it may suitably have two articuhted bearings 4 5 arranged next to one another. Such a double-articulated mounting plate can be provided especially for connecting three vertebral bones W by attaching one mounting plate each of the first or second variant to the corresponding, ~-adjacent vertebral bone W on both sides of the said double-articuhted mounting plate and connecting the said tvo mounting plates of the first or 10 second variant with the double-articuhted mounting plate to a said spindle 5 each.
In a first embodiment, the said articulated bearing 4 consists of at least one bearing bush 4.1, which has a spindle hob 7 for the passage of the said spindle S essentially at right angles to the longitudinal extension of the said mounting plate 3, on the one hand, and a cylindri~al inner wall 4.1.1, on the `-other hand, wherein a cylindrical bearing pin 4.3.3 can be inserted into the ;
said bearing bush 4.1. This bearing pin 4.33 has a hole 4.4 with internal threads for screwing in the said spindle 5.
In a second embodiment, the said articulated bearing 4 consists of at 20 least one said bearing bush 4.1, which has a said spindle hole 7 for the passage of the said spindle 5 essentially at right angles to the longitudinal extension of 9 . . ~ ..
21~18~
the said mounting plate 3, on the one hand, and a cylindrical inner wall 4.1.1, on the other hand, wherein a double truncated cone-shaped bearing pin 4.3 3 can be inserted into the said bearing bush 4.1. This bearing pin 4.3.3 has a said hole 4.4 with internal threads for screwing in the said spindle 5.
S In a third embodiment, the said articulated bearing 4 consists of at least one said bearing bush 4.1, which has a said spindle hole 7 for the passage of the said spindle S essentially at right angles to the longitudinal extension of the said mounting plate 3, on the one hand, and a cylindrical inner wall 4.1.1, on the other hand, wherein a barrel-shaped bearing pin 4.3 3 can be inserted into the said bearing bush 4.1. This bearing pin 4.3 3 has a said hole 4.4 with internal threads for screwing in the said spindle 5. ~ -In a fourth embodiment, the said articulated bearing 4 consists of at least one bearing bush 4.1, which has a said spindle hole 7 for the passage of the said spindle essentially at right angles to the longitudinal extension of the said mounting plate 3, on the one hand, and an at least partiaDy spherical inner wall 4.1.2, on the other hand, wherein a spherical bearing pin 4.3 3 can be inserted into the said bearing bush 4.1. This bearing pin 4.3 3 has a said hole 4.4 with internal threads for screwing in the said spindle 5.
The said spindle S has left-hand and right-hand, self-locking threads, between which an angular shaft piece 5.1 is arranged for actuating the spindle, e.g., with a wrench or the like. In particular, the said spindle S may be :`` ` ', , ` :.. ` :' :. "
21 01~80 screwed permanently with one of its free ends into a said bearing pin 4.3 each and have a pinched area acting as a means securing against screwing out at the corresponding thread end.
In the case of a compression or distraction (Figures 4, S and 6) of two S adjacent vertebral bones W, one said mounting plate 3.1 in a hrst variant or a said mounting plate 3.2 in a second variant is screwed together with a -corresponding first vertebral bone by means of said bone screws K A said mounting plate 3.1 of a fist variant or a said mounting plate 3.2 of a second variant is screwed together in the same manner with a corresponding second 10 vertebral bone W by means of said bone screws K The said ~vo mounting plates 3 are subsequenth~r connected by means of the said spindle 5, and the said two vertebral bones W are adjusted in relation to one another and fixed by rotating same the spindle S. The said mounting plates 3 with the said articulated bearings 4 can be mounted on the said vertebral bones W -lS somewhat to the side of the said esophagus SR, which leads to no or negligible impairment of the patient's ability to swallow. The said mounting plates 3.2 in a second variant are preferably used when other surgical aids, e.g., for `
supporting the said vertebral bones W, must also be used between the said vertebral bones W, but these aids must not leave the space between the said 20 two vertebral bones W and can be held by the said mounting plate 3.2 of the second variant (Figure 10).
'.,... :, 11 .
`- 21û1880 In the case of a compression or distraction (Figure 11) of three adjacent vertebral bones W, said mounting plates 3.1 or 3.2 of the first variant or of the second variant are mounted on the said two peripherally located vertebral bones W, whereas a double-articulated mounting plate is screwed 5 onto the said middle vertebral bone W. The said corresponding mounting plate 3 of the said adjacent vertebral bone W is adjusted and fixed with a said spindle S each on each side of the said middle vertebral bone W.
However, it is also possible (Figure 8) to mount the said two mounting plates 3 of said two adjacent vertebral bones W at any desired angle 10 determined by the injury situation of the vertebrae and to connect and adjust them with an, e.g., obliquely located spindle 5. Thus, fixation of vertebra1 bones will always be possible in very many different injuries to the said vertebral bones W, as a result of which the chances of healing and the quality of healing are substantiaUy improved.
Compared with the fixation of the said vertebral bones W that can be achieved with the band-like implant BI according to the state of the art, compression or distraction can be achieved with the said implant 1 according to the present invention, as a result of which the possible applications of an implant are substantially expanded. Moreover, the said implant can also be 20 used as a holding aid instead of a surgical instrument that is normally ~dditionally necessary, because it is able to hold the vertebrae in a position 21Qlg80 :
favorable for the operation during other surgical procedures.
In particular, the said two vertebral bones W can be adjusted very accurately in relation to one another by the said spindle S, which is not possible in the case of the band-like i nplant according to the state of the art, 5 because it does not provide a separate possibility of adjustment for the position of the said two vertebral bones W, since this position is determined by the mounting process, which can, in generaL never be performed so accurately as a separate adjustment process in the case of the implant according to the present invention. It should be emphasized once again that 10 the mounting of the said implant 1 according to the present invention can be performed without any preparation on the said vertebral bone W, as a result of which the operation time and consequently also the duration of anesthesia of the patient, on the one hand, as well as the size of the field of operation, i.e., the wound, on the other hand, can be reduced. Both represent substantial lS progress in the surgical treatment in operations which are critical in any event.
One essential advantage of the implant according to the present invention is the lateral arrangement of the said articulated bearing 4, which makes it possible to place this projecting component in a natural recess of the vertebral bone and consequently to avoid especially the hindering deformation 20 of the esophagus.
While specific embodiments of the invention have been shown and ~ 2~01880 .
described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied othelwise without departing from such principles.
FIELD OF THE INVENTION ` ~ ;
The present invention pertains to an implant for the spinal column for ~:
fi~ing the vertebrae, especiaUy the cervical vertebrae, on the anterior side, i.e., on the esophageal side wherein the implant has screw holes for screwing to the vertebrae.
s BACKGROUND OFTHE INVENTION :
An implant that has become known as an example is essentially a metal band, on which lateral straps are arranged, and both the metal band and the 21018~
straps have screw holes, which are provided for accommodating bone screws.
These metal bands are available in different lengths to ensure that they can be selected corresponding to the physical conditions of a given patient.
The vertebrae are fixed with such band-like implants by screwing the 5 implant onto a vertebra, after a so-called bed for the implant has been created on the surface of the vertebra by, e.g., milling off the vertebral bone W in order to prepare a corresponding support surface for the band-like implant~
A bed also must be formed on the adjacent vertebra to be fixed in order to subsequently screw this vertebra together with the band-lilce implant in the 10 medically necessarypositionof thevertebra The disadvantage of such a band-lilce implant is that these procedures are to be performed under surgical conditions and they also require removal of the bone chips and the lil~e, generated during the preparation of the two beds for the band-lilce implants Moreover, the heads of the bone screws 15 usually project from the vertebra together with the band-like implant, which leads to unpleasant, symptom-producing accompanying phenomena, especially in the area of the esophagus. In addition, it may be necessary, depending on the location of the vertebrae or their damage, to provide a washer between the band-lilce implant and one vertebra or both vertebrae in order to achieve a 20 medically suitable fixation. In particular, the site at which the bone screws are screwed in cannot be selected solely based on medical criteria, because the screw holes in the band-like implant are permanently predetermined, as a result of which fixation cannot be always performed in a medicaDy optimal manner. This may lead to a 1imitation of the medically necessaly measures, especially in the case of osteoporosis, because the location of the screw holes 5 must be selected in this case so as to ensure that they will not break out.
There also is a risk of breaking out especially in the case of screw holes in peripheral zones of the vertebra, which frequently must be used in the case of the band-like implant, because precisely the screw holes are permanent~
predetermined by their distances on the band-like implant. Moreover, it is 10 necessary to keep in stock the different, medically necessary sizes of band-like implant.
SUMMARY AND OBJECIS OF THE INVENTION
The object of the present invention is to eliminate the disadvantages of prior-art band-like imp1ants and to provide an implant that makes possible the 15 medically conformal fixation or ventral cervical stabilization, with possibly optimal selection of the position of the bone screws, if possible, also to avoid hindrances for the patient, e.g., due to a reduction of the esophageal cross section, etc. It is also desirable to eliminate the need for additional auxiliary means, such as washers, etc., to achieve the medically optimal position. The 20 amount of preparation of the vertebral bone for installing the implant shall be as small as possible, or the need for such preparation should be eliminated - , '' altogether.
This object can be attained by the implant according to the present invention for the spinal column for fixing the vertebrae, especiaUy the cervical vertebrae, whereio the implant is of a multicomponent design and has at least S two mounting plates. The mounting plates are provided with screw holes and are connected, by means of an articulated bearing each, to a spindle. The spindle is provided with left hand and right hand threads with an angular shaft piece for actuating the spindle. The mounting plates have a ribbed area on the side facing the vertebral bone.
The mounting plate of a first variant is designed as a kidney-shaped, arched plate. With the mounting plate, the articulated bearing is made in one piece at one of its ends.
The mounting plate of a second variant is designed as a kidney-shaped, arched plate having a holding tab. The articulated bearing with the mounting 15 plate is made in one piece at one of its ends.
The articulated bearing may be formed of at least one bearing bush which has a spindle hole for the passage of the spindle, essentially at right angles to the longitudinal extension of the mounting plate. The bearing bush has a cylindrical inner waU. The articulate bearing also includes a cylindrical 20 bearing pin which can be inserted into the bearing bush. The bearing pin is provided with a hole with internal threads for engaging the spindle (for screwing in the spindle).
The articulated bearing may a}so be formed with the bearing bush having the spindle hole for passage of the spindle essentially at right angles to the longitudinal extension of the mounting plate and the inner cylindrical wall.
S The bearing pin may be a double truncated cone-shaped pin which can be inserted into the bearing bush and which again has a hole with internal threads for screwing in the spindle.
The articulated bearing may also include the bearing bush with the spindle hole and cylindrical inner wall and also a barrel-shaped bearing pin 10 which can be inserted into the bearing bush and has a hole with internal threads for screwing in the spindle. The bea~ing pin may also be spherical.
The spindle may be permanently screwed with its free ends into the bearing pin and may be provided with a pinched area acting as a securing means against screwing out at the threaded end.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred 20 embodiments of the invention are illustrated.
.' 2~0188~
BRIEF DESCRIPTION OF THE DRAWINGS
.!, In the drawings: ; `
Figure 1 is a frontview of a band-like implant according to the state of the art; .
Figure 2 is a side view of a band-like implant according to the state of the art; -.
Figure 3 is a top view of a band-like implant according to the state of the art; ~;
Figure 4 is a front view of a first variant of an implant according to the present invention;
Figure 5 is a side view of a first variant of an implant according to the present invention;
Figure 6 is an axonometric, disassembled representation of a first variant of an implant according to the present invention; ~ .
FiguTe 7 is a top view of the mounting plate of a first variant of an implant according to the present invention;
Figure 8 is a front view of a mounting variant of a first variant of an implant according to the present inveneion;
Figure 9 is a top view of a first variant of an implant according to the present i~vention, mounted on a cervical vertebra;
Figure 10 is a front view of a second type of a mounting plate of an 2101~
.~:
implant according to the present invention (second variant), which mounting plate is mounted on a cervical vertebra; and Figure 11 is a front view of an implant according to the present invention (variant with a plurality of articulated bearings) mounted on three 5 cervical vertebrae.
STATE OF THE ART
The implant BI according to the state of the art shown in Figures 1, 2 and 3 is essentially a metal band M, on which lateral straps L are arranged, and both the metal band M and the straps L have screw holes S, which are 10 provided for accommodating bone screws KS. The screw holes S and the straps L having the screw holes are arranged at f~ed distances, and the metal bands M are available in different lengths, so that they can be selected ~- ~
corresponding to the patient's physical conditions. Such a band-like implant :
BI requires a bed B on the vertebral bone W in order for it to be able to be 15 mounted. The mounting is performed by screwing the band-like implant onto the vertebral bone W. The bed B is prepared by, e.g., milling off the vertebral ~ -bone W. A bed B must also be formed on the adjacent vertebral bone W to be fixed in order to subsequently screw together this vertebral bone W with the band-like implant BI in the medically necessary vertebral position. The 20 narrowing of the esophagus SR caused by the band-like implant BI is shown in ~igures 2 and 3. In addition, fin~atio; with a band-like implant Bl by means - . - '';
21~1880 of a washer is shown in Figure 2.
DETAILED DESCRIPTION
OF THE PREFERRED EMBODIMENT
An implant 1 according to the present invention has at least two 5 mounting plates 3, which are adjustably connected -- by means of an articulated bearing 4 each, made in one piece with them -- to a spindle 5 screwed into the said bearings.
A mounting plate 3.1 in a first variant is designed as a kidney-shaped, arched plate, with which the said articulated bearing 4 is made in one piece 10 at one of its ends. It has, adjacent to the said articulated bearing 4, at least two screw holes 2, which are countersunk. On the side facing away from the said articulated bearing 4, the said kidney-shaped, arched plate has a ribbed area, with which the force generated by the rotation of the vertebrae in relation to one another during movements of the patient, on the one hand, 15 and that generated by the distortion of the vertebral bones W in relation to one another by means of the said spindle 5, on the other hand, caD be absorbed better and not solely by the said bone screws in the said screw holes 2.
A mounting plate 3.2 in a second variant (Figure 10) is designed just 20 like the said mounting plate 3.1 of the first variant, but it additionally has a holding tab 3.3, which projects from it at right angles to its longitudinal extension and is used to hold a vertebral spacer that may have been i~erted 21018g~
between the vertebrae or another, surgica~ly necessary irnplant against sliding out of the space bet veen the vertebrae.
In a modified version (Figure 11) of one of the two variants of the said mounting plate 3.1 or 3.2, it may suitably have two articuhted bearings 4 5 arranged next to one another. Such a double-articulated mounting plate can be provided especially for connecting three vertebral bones W by attaching one mounting plate each of the first or second variant to the corresponding, ~-adjacent vertebral bone W on both sides of the said double-articuhted mounting plate and connecting the said tvo mounting plates of the first or 10 second variant with the double-articuhted mounting plate to a said spindle 5 each.
In a first embodiment, the said articulated bearing 4 consists of at least one bearing bush 4.1, which has a spindle hob 7 for the passage of the said spindle S essentially at right angles to the longitudinal extension of the said mounting plate 3, on the one hand, and a cylindri~al inner wall 4.1.1, on the `-other hand, wherein a cylindrical bearing pin 4.3.3 can be inserted into the ;
said bearing bush 4.1. This bearing pin 4.33 has a hole 4.4 with internal threads for screwing in the said spindle 5.
In a second embodiment, the said articulated bearing 4 consists of at 20 least one said bearing bush 4.1, which has a said spindle hole 7 for the passage of the said spindle 5 essentially at right angles to the longitudinal extension of 9 . . ~ ..
21~18~
the said mounting plate 3, on the one hand, and a cylindrical inner wall 4.1.1, on the other hand, wherein a double truncated cone-shaped bearing pin 4.3 3 can be inserted into the said bearing bush 4.1. This bearing pin 4.3.3 has a said hole 4.4 with internal threads for screwing in the said spindle 5.
S In a third embodiment, the said articulated bearing 4 consists of at least one said bearing bush 4.1, which has a said spindle hole 7 for the passage of the said spindle S essentially at right angles to the longitudinal extension of the said mounting plate 3, on the one hand, and a cylindrical inner wall 4.1.1, on the other hand, wherein a barrel-shaped bearing pin 4.3 3 can be inserted into the said bearing bush 4.1. This bearing pin 4.3 3 has a said hole 4.4 with internal threads for screwing in the said spindle 5. ~ -In a fourth embodiment, the said articulated bearing 4 consists of at least one bearing bush 4.1, which has a said spindle hole 7 for the passage of the said spindle essentially at right angles to the longitudinal extension of the said mounting plate 3, on the one hand, and an at least partiaDy spherical inner wall 4.1.2, on the other hand, wherein a spherical bearing pin 4.3 3 can be inserted into the said bearing bush 4.1. This bearing pin 4.3 3 has a said hole 4.4 with internal threads for screwing in the said spindle 5.
The said spindle S has left-hand and right-hand, self-locking threads, between which an angular shaft piece 5.1 is arranged for actuating the spindle, e.g., with a wrench or the like. In particular, the said spindle S may be :`` ` ', , ` :.. ` :' :. "
21 01~80 screwed permanently with one of its free ends into a said bearing pin 4.3 each and have a pinched area acting as a means securing against screwing out at the corresponding thread end.
In the case of a compression or distraction (Figures 4, S and 6) of two S adjacent vertebral bones W, one said mounting plate 3.1 in a hrst variant or a said mounting plate 3.2 in a second variant is screwed together with a -corresponding first vertebral bone by means of said bone screws K A said mounting plate 3.1 of a fist variant or a said mounting plate 3.2 of a second variant is screwed together in the same manner with a corresponding second 10 vertebral bone W by means of said bone screws K The said ~vo mounting plates 3 are subsequenth~r connected by means of the said spindle 5, and the said two vertebral bones W are adjusted in relation to one another and fixed by rotating same the spindle S. The said mounting plates 3 with the said articulated bearings 4 can be mounted on the said vertebral bones W -lS somewhat to the side of the said esophagus SR, which leads to no or negligible impairment of the patient's ability to swallow. The said mounting plates 3.2 in a second variant are preferably used when other surgical aids, e.g., for `
supporting the said vertebral bones W, must also be used between the said vertebral bones W, but these aids must not leave the space between the said 20 two vertebral bones W and can be held by the said mounting plate 3.2 of the second variant (Figure 10).
'.,... :, 11 .
`- 21û1880 In the case of a compression or distraction (Figure 11) of three adjacent vertebral bones W, said mounting plates 3.1 or 3.2 of the first variant or of the second variant are mounted on the said two peripherally located vertebral bones W, whereas a double-articulated mounting plate is screwed 5 onto the said middle vertebral bone W. The said corresponding mounting plate 3 of the said adjacent vertebral bone W is adjusted and fixed with a said spindle S each on each side of the said middle vertebral bone W.
However, it is also possible (Figure 8) to mount the said two mounting plates 3 of said two adjacent vertebral bones W at any desired angle 10 determined by the injury situation of the vertebrae and to connect and adjust them with an, e.g., obliquely located spindle 5. Thus, fixation of vertebra1 bones will always be possible in very many different injuries to the said vertebral bones W, as a result of which the chances of healing and the quality of healing are substantiaUy improved.
Compared with the fixation of the said vertebral bones W that can be achieved with the band-like implant BI according to the state of the art, compression or distraction can be achieved with the said implant 1 according to the present invention, as a result of which the possible applications of an implant are substantially expanded. Moreover, the said implant can also be 20 used as a holding aid instead of a surgical instrument that is normally ~dditionally necessary, because it is able to hold the vertebrae in a position 21Qlg80 :
favorable for the operation during other surgical procedures.
In particular, the said two vertebral bones W can be adjusted very accurately in relation to one another by the said spindle S, which is not possible in the case of the band-like i nplant according to the state of the art, 5 because it does not provide a separate possibility of adjustment for the position of the said two vertebral bones W, since this position is determined by the mounting process, which can, in generaL never be performed so accurately as a separate adjustment process in the case of the implant according to the present invention. It should be emphasized once again that 10 the mounting of the said implant 1 according to the present invention can be performed without any preparation on the said vertebral bone W, as a result of which the operation time and consequently also the duration of anesthesia of the patient, on the one hand, as well as the size of the field of operation, i.e., the wound, on the other hand, can be reduced. Both represent substantial lS progress in the surgical treatment in operations which are critical in any event.
One essential advantage of the implant according to the present invention is the lateral arrangement of the said articulated bearing 4, which makes it possible to place this projecting component in a natural recess of the vertebral bone and consequently to avoid especially the hindering deformation 20 of the esophagus.
While specific embodiments of the invention have been shown and ~ 2~01880 .
described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied othelwise without departing from such principles.
Claims (12)
1. Implant for the spinal column for fixing vertebrae, including fixing cervical vertebrae, on an anterior side, i.e., on a side of the esophagus, comprising:
at least two mounting plates, each mounting plate being provided with screw holes;
an articulated bearing connected to a first of said mounting plates and an articulated bearing connected to a second of said mounting plates;
a spindle provided with left-hand and right-hand threads with an angular shaft piece for actuating said spindle, said mounting plates including a ribbed area on a side facing a vertebral bone.
at least two mounting plates, each mounting plate being provided with screw holes;
an articulated bearing connected to a first of said mounting plates and an articulated bearing connected to a second of said mounting plates;
a spindle provided with left-hand and right-hand threads with an angular shaft piece for actuating said spindle, said mounting plates including a ribbed area on a side facing a vertebral bone.
2. Implant according to claim 1, wherein:
said mounting plate is designed as a kidney-shaped arched plate, said articulated bearing is formed in one piece at one end of said mounting plate.
said mounting plate is designed as a kidney-shaped arched plate, said articulated bearing is formed in one piece at one end of said mounting plate.
3. Implant according to claim 1, wherein:
said mounting plate is designed as a kidney-shaped arched plate having a holding tab, said articulated bearing being made in one piece at one of its ends.
said mounting plate is designed as a kidney-shaped arched plate having a holding tab, said articulated bearing being made in one piece at one of its ends.
4. Implant according to claim 2, wherein:
said articulated bearing is formed of at least one bearing bush including a spindle hole for the passage of a spindle, essentially at right angles to a longitudinal extension of the mounting plate and said bearing bush including a cylindrical inner wall, a cylindrical bearing pin is provided and inserted into said bearing bush and having a hole with internal threads for engaging threads of said spindle.
said articulated bearing is formed of at least one bearing bush including a spindle hole for the passage of a spindle, essentially at right angles to a longitudinal extension of the mounting plate and said bearing bush including a cylindrical inner wall, a cylindrical bearing pin is provided and inserted into said bearing bush and having a hole with internal threads for engaging threads of said spindle.
5. Implant according to claim 3, wherein:
said articulated bearing is formed of at least one bearing bush including a spindle hole for the passage of a spindle, essentially at right angles to a longitudinal extension of the mounting plate and said bearing bush including a cylindrical inner wall, a cylindrical bearing pin is provided and inserted into said bearing bush and having a hole with internal threads for engaging threads of said spindle.
said articulated bearing is formed of at least one bearing bush including a spindle hole for the passage of a spindle, essentially at right angles to a longitudinal extension of the mounting plate and said bearing bush including a cylindrical inner wall, a cylindrical bearing pin is provided and inserted into said bearing bush and having a hole with internal threads for engaging threads of said spindle.
6. Implant according to claim 2, wherein:
said articulated bearing is formed of at least one bearing bush having a spindle hole for passage of the spindle substantially at right angles to a longitudinal extension of the mounting plate, said bearing bush including a cylindrical inner wall and said articulated bearing including a double truncated cone-shaped bearing pin, which is inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
said articulated bearing is formed of at least one bearing bush having a spindle hole for passage of the spindle substantially at right angles to a longitudinal extension of the mounting plate, said bearing bush including a cylindrical inner wall and said articulated bearing including a double truncated cone-shaped bearing pin, which is inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
7. Implant according to claim 3, wherein:
said articulated bearing is formed of at least one bearing bush having a spindle hole for passage of the spindle substantially at right angles to a longitudinal extension of the mounting plate, said bearing bush including a cylindrical inner wall and said articulated bearing including a double truncated cone-shaped bearing pin, which is inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
said articulated bearing is formed of at least one bearing bush having a spindle hole for passage of the spindle substantially at right angles to a longitudinal extension of the mounting plate, said bearing bush including a cylindrical inner wall and said articulated bearing including a double truncated cone-shaped bearing pin, which is inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
8. Implant according to claim 2, wherein:
said articulated bearing is formed of at least one bearing bush having a spindle hole for passage of a spindle, set substantially at right angles to a longitudinal extension of said mounting plate, said bearing bush including a cylindrical inner wall and said articulated bearing further including a barrel-shaped bearing pin, inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
said articulated bearing is formed of at least one bearing bush having a spindle hole for passage of a spindle, set substantially at right angles to a longitudinal extension of said mounting plate, said bearing bush including a cylindrical inner wall and said articulated bearing further including a barrel-shaped bearing pin, inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
9. Implant according to claim 3, wherein:
said articulated bearing is formed of at least one bearing bush having a spindle hole for passage of a spindle, set substantially at right angles to a longitudinal extension of said mounting plate, said bearing bush including a cylindrical inner wall and said articulated bearing further including a barrel-shaped bearing pin, inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
said articulated bearing is formed of at least one bearing bush having a spindle hole for passage of a spindle, set substantially at right angles to a longitudinal extension of said mounting plate, said bearing bush including a cylindrical inner wall and said articulated bearing further including a barrel-shaped bearing pin, inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
10. Implant according to claim 2, wherein:
said articulated bearing is formed of at least one bearing bush having a spindle hole for the passage of a spindle substantially at right angles to a longitudinal extension of said mounting plate, said bearing bush having at least a partially spherical inner wall, said articulated bearing further including a spherical bearing pin, inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
said articulated bearing is formed of at least one bearing bush having a spindle hole for the passage of a spindle substantially at right angles to a longitudinal extension of said mounting plate, said bearing bush having at least a partially spherical inner wall, said articulated bearing further including a spherical bearing pin, inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
11. Implant according to claim 3, wherein:
said articulated bearing is formed of at least one bearing bush having a spindle hole for the passage of a spindle substantially at right angles to a longitudinal extension of said mounting plate, said bearing bush having at least a partially spherical inner wall, said articulated bearing further including a spherical bearing pin, inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
said articulated bearing is formed of at least one bearing bush having a spindle hole for the passage of a spindle substantially at right angles to a longitudinal extension of said mounting plate, said bearing bush having at least a partially spherical inner wall, said articulated bearing further including a spherical bearing pin, inserted into said bearing bush, said bearing pin having a hole with internal threads for engaging threads of said spindle.
12. Implant according to claim 1, wherein:
said spindle is permanently screwed with its free end into said bearing pin, and has a pinched area acting as a securing means against screwing out of a threaded end.
said spindle is permanently screwed with its free end into said bearing pin, and has a pinched area acting as a securing means against screwing out of a threaded end.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93108127A EP0570929B1 (en) | 1992-05-18 | 1993-05-18 | Implant for the spine |
| DE59300304T DE59300304D1 (en) | 1992-05-18 | 1993-05-18 | Implant for the spine. |
| AT93108127T ATE124238T1 (en) | 1992-05-18 | 1993-05-18 | IMPLANT FOR THE SPINE. |
| US08/099,618 US5380324A (en) | 1992-05-18 | 1993-07-30 | Implantable device for straightening and fixing vertebrae |
| CA002101880A CA2101880A1 (en) | 1992-05-18 | 1993-08-04 | Implant |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH158592A CH687123A5 (en) | 1992-05-18 | 1992-05-18 | Spinal-column implant positioning cervical vertebrae |
| US08/099,618 US5380324A (en) | 1992-05-18 | 1993-07-30 | Implantable device for straightening and fixing vertebrae |
| CA002101880A CA2101880A1 (en) | 1992-05-18 | 1993-08-04 | Implant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2101880A1 true CA2101880A1 (en) | 1995-02-05 |
Family
ID=27169522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002101880A Abandoned CA2101880A1 (en) | 1992-05-18 | 1993-08-04 | Implant |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5380324A (en) |
| EP (1) | EP0570929B1 (en) |
| AT (1) | ATE124238T1 (en) |
| CA (1) | CA2101880A1 (en) |
| DE (1) | DE59300304D1 (en) |
Families Citing this family (64)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2715291B1 (en) * | 1994-01-21 | 1996-06-07 | Michel Allard | Osteosynthesis device. |
| FR2721501B1 (en) * | 1994-06-24 | 1996-08-23 | Fairant Paulette | Prostheses of the vertebral articular facets. |
| US6258116B1 (en) * | 1996-01-26 | 2001-07-10 | Cordis Corporation | Bifurcated axially flexible stent |
| US5980553A (en) * | 1996-12-20 | 1999-11-09 | Cordis Corporation | Axially flexible stent |
| US5800433A (en) | 1996-05-31 | 1998-09-01 | Acromed Corporation | Spinal column retaining apparatus |
| JP4467647B2 (en) | 1997-02-11 | 2010-05-26 | ウォーソー・オーソペディック・インコーポレーテッド | Bone plating system |
| ES2299202T3 (en) * | 1997-02-11 | 2008-05-16 | Warsaw Orthopedic, Inc. | SCHEMETIC PLATE SYSTEM. |
| US6482233B1 (en) | 1998-01-29 | 2002-11-19 | Synthes(U.S.A.) | Prosthetic interbody spacer |
| US6565569B1 (en) | 1998-04-29 | 2003-05-20 | Stryker Spine | Backbone osteosynthesis system with clamping means, in particlular for anterior fixing |
| FR2784282B1 (en) | 1998-10-09 | 2001-03-23 | Dimso Sa | SPINAL OSTEOSYNTHESIS SYSTEM WITH IMPROVED RIGIDITY |
| FR2780269B1 (en) * | 1998-06-26 | 2003-10-17 | Euros Sa | RACHIDIAN IMPLANT |
| AU761199B2 (en) * | 1999-05-14 | 2003-05-29 | Synthes Gmbh | Bone fixation device with a rotation joint |
| ES2273674T3 (en) | 2000-04-19 | 2007-05-16 | Synthes Gmbh | DEVICE FOR THE ARTICULATED UNION OF BODIES. |
| EP1284707A4 (en) | 2000-05-30 | 2003-06-25 | Paul S Lin | Implant for placement between cervical vertebrae |
| AU2002336069A1 (en) * | 2001-03-27 | 2002-10-08 | Bret A. Ferree | Anatomic posterior lumbar plate |
| US7344539B2 (en) | 2001-03-30 | 2008-03-18 | Depuy Acromed, Inc. | Intervertebral connection system |
| US20060064092A1 (en) * | 2001-05-17 | 2006-03-23 | Howland Robert S | Selective axis serrated rod low profile spinal fixation system |
| US20040243128A1 (en) * | 2001-05-17 | 2004-12-02 | Howland Robert S. | Selective axis posterior lumbar spinal plating fixation apparatus and methods for use |
| US7314467B2 (en) * | 2002-04-24 | 2008-01-01 | Medical Device Advisory Development Group, Llc. | Multi selective axis spinal fixation system |
| US6770075B2 (en) | 2001-05-17 | 2004-08-03 | Robert S. Howland | Spinal fixation apparatus with enhanced axial support and methods for use |
| US7682392B2 (en) * | 2002-10-30 | 2010-03-23 | Depuy Spine, Inc. | Regenerative implants for stabilizing the spine and devices for attachment of said implants |
| US7811312B2 (en) * | 2002-12-04 | 2010-10-12 | Morphographics, Lc | Bone alignment implant and method of use |
| US8128666B2 (en) * | 2003-03-24 | 2012-03-06 | Medical Designs, Llc | Low profile screw anchor with variable axis/angle fixation |
| US7291152B2 (en) * | 2003-04-18 | 2007-11-06 | Abdou M Samy | Bone fixation system and method of implantation |
| FR2859376B1 (en) | 2003-09-04 | 2006-05-19 | Spine Next Sa | SPINAL IMPLANT |
| US7255714B2 (en) | 2003-09-30 | 2007-08-14 | Michel H. Malek | Vertically adjustable intervertebral disc prosthesis |
| US7862586B2 (en) * | 2003-11-25 | 2011-01-04 | Life Spine, Inc. | Spinal stabilization systems |
| US7175662B2 (en) * | 2004-04-01 | 2007-02-13 | Cervitech, Inc. | Cervical intervertebral prosthesis |
| US7854752B2 (en) | 2004-08-09 | 2010-12-21 | Theken Spine, Llc | System and method for dynamic skeletal stabilization |
| ATE524121T1 (en) | 2004-11-24 | 2011-09-15 | Abdou Samy | DEVICES FOR PLACING AN ORTHOPEDIC INTERVERTEBRAL IMPLANT |
| US20070055250A1 (en) * | 2005-07-11 | 2007-03-08 | Kamran Aflatoon | Cervical plates with spacer mechanism |
| US8641735B2 (en) * | 2006-01-27 | 2014-02-04 | Warsaw Orthopedic, Inc. | Implantable longitudinal orthopedic supports for accommodating multiple anatomical support requirements |
| US8025681B2 (en) * | 2006-03-29 | 2011-09-27 | Theken Spine, Llc | Dynamic motion spinal stabilization system |
| US20080027444A1 (en) * | 2006-07-28 | 2008-01-31 | Malek Michel H | Bone anchor device |
| US7835727B2 (en) * | 2007-01-22 | 2010-11-16 | Telefonaktiebolaget L M Ericsson (Publ) | Method and system for using user equipment to compose an ad-hoc mosaic |
| US8343194B2 (en) * | 2007-08-20 | 2013-01-01 | Kamran Aflatoon | Anterior cervical staple |
| US8894651B2 (en) * | 2007-09-11 | 2014-11-25 | Kamran Aflatoon | Method of lateral facet approach, decompression and fusion using screws and staples as well as arthroplasty |
| US8617214B2 (en) | 2008-01-07 | 2013-12-31 | Mmsn Limited Partnership | Spinal tension band |
| US7935133B2 (en) | 2008-02-08 | 2011-05-03 | Mmsn Limited Partnership | Interlaminar hook |
| US20100094352A1 (en) * | 2008-10-10 | 2010-04-15 | Andrew Iott | Bone screw |
| US8187304B2 (en) * | 2008-11-10 | 2012-05-29 | Malek Michel H | Facet fusion system |
| US9492214B2 (en) | 2008-12-18 | 2016-11-15 | Michel H. Malek | Flexible spinal stabilization system |
| US20110106087A1 (en) * | 2009-10-30 | 2011-05-05 | Gamache Thomas J | Bone Plate Holder |
| US8425515B2 (en) * | 2009-10-30 | 2013-04-23 | Depuy Spine, Inc. | Bone graft loading instruments and methods of connecting a bone graft to a bone plate |
| US8425520B2 (en) | 2009-10-30 | 2013-04-23 | Depuy Spine, Inc. | Bone plate holder |
| US8470003B2 (en) | 2009-10-30 | 2013-06-25 | DePuy Synthes Products, LLC | Laminoplasty plates and methods of expanding the spinal canal |
| US8764806B2 (en) | 2009-12-07 | 2014-07-01 | Samy Abdou | Devices and methods for minimally invasive spinal stabilization and instrumentation |
| US9301787B2 (en) | 2010-09-27 | 2016-04-05 | Mmsn Limited Partnership | Medical apparatus and method for spinal surgery |
| US8992579B1 (en) | 2011-03-08 | 2015-03-31 | Nuvasive, Inc. | Lateral fixation constructs and related methods |
| WO2012149087A1 (en) | 2011-04-26 | 2012-11-01 | Synthes Usa, Llc | Hinged fixation devices for combined upper jaw correction |
| US8845728B1 (en) | 2011-09-23 | 2014-09-30 | Samy Abdou | Spinal fixation devices and methods of use |
| US20130226240A1 (en) | 2012-02-22 | 2013-08-29 | Samy Abdou | Spinous process fixation devices and methods of use |
| US9060815B1 (en) | 2012-03-08 | 2015-06-23 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
| FR2989264B1 (en) * | 2012-04-11 | 2014-05-09 | Medicrea International | MATERIAL OF VERTEBRAL OSTEOSYNTHESIS |
| US9198767B2 (en) | 2012-08-28 | 2015-12-01 | Samy Abdou | Devices and methods for spinal stabilization and instrumentation |
| ES2534058T3 (en) * | 2012-09-18 | 2015-04-17 | Karl Leibinger Medizintechnik Gmbh & Co. Kg | Sternum closure in the form of a sternal plate with an integral sectioning point component |
| US9320617B2 (en) | 2012-10-22 | 2016-04-26 | Cogent Spine, LLC | Devices and methods for spinal stabilization and instrumentation |
| US9517089B1 (en) | 2013-10-08 | 2016-12-13 | Nuvasive, Inc. | Bone anchor with offset rod connector |
| USD779065S1 (en) | 2014-10-08 | 2017-02-14 | Nuvasive, Inc. | Anterior cervical bone plate |
| US10857003B1 (en) | 2015-10-14 | 2020-12-08 | Samy Abdou | Devices and methods for vertebral stabilization |
| EP3448290A4 (en) | 2016-05-13 | 2019-12-18 | Musc Foundation for Research Development | Anterior spinal implants for reducing spinal malalignment and associated systems and methods |
| US10973648B1 (en) | 2016-10-25 | 2021-04-13 | Samy Abdou | Devices and methods for vertebral bone realignment |
| US10744000B1 (en) | 2016-10-25 | 2020-08-18 | Samy Abdou | Devices and methods for vertebral bone realignment |
| US11179248B2 (en) | 2018-10-02 | 2021-11-23 | Samy Abdou | Devices and methods for spinal implantation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4611581A (en) * | 1983-12-16 | 1986-09-16 | Acromed Corporation | Apparatus for straightening spinal columns |
| SU1417869A1 (en) * | 1984-02-20 | 1988-08-23 | Киевский государственный институт усовершенствования врачей | Plate for osteosynthesis |
| US4773402A (en) * | 1985-09-13 | 1988-09-27 | Isola Implants, Inc. | Dorsal transacral surgical implant |
| US4771767A (en) * | 1986-02-03 | 1988-09-20 | Acromed Corporation | Apparatus and method for maintaining vertebrae in a desired relationship |
| DE3729600A1 (en) * | 1987-09-04 | 1989-03-16 | Aesculap Werke Ag | Implant for insertion between the vertebral bodies of the spine |
| DE3807346C1 (en) * | 1988-03-05 | 1989-06-29 | Orthoplant Endoprothetik Gmbh, 2800 Bremen, De | Implant for repositioning and stabilisation of bones |
| FR2651992B1 (en) * | 1989-09-18 | 1991-12-13 | Sofamor | IMPLANT FOR ANTERIOR DORSO-LUMBAR SPINE OSTEOSYNTHESIS FOR CORRECTION OF CYPHOSIS. |
| SE8903403D0 (en) * | 1989-10-16 | 1989-10-16 | Sven Olerud | DEVICE FOR FIXING INSTRUMENTS FOR BACKGROUND OPERATIONS |
-
1993
- 1993-05-18 EP EP93108127A patent/EP0570929B1/en not_active Expired - Lifetime
- 1993-05-18 DE DE59300304T patent/DE59300304D1/en not_active Expired - Fee Related
- 1993-05-18 AT AT93108127T patent/ATE124238T1/en not_active IP Right Cessation
- 1993-07-30 US US08/099,618 patent/US5380324A/en not_active Expired - Fee Related
- 1993-08-04 CA CA002101880A patent/CA2101880A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0570929A1 (en) | 1993-11-24 |
| DE59300304D1 (en) | 1995-08-03 |
| US5380324A (en) | 1995-01-10 |
| ATE124238T1 (en) | 1995-07-15 |
| EP0570929B1 (en) | 1995-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5380324A (en) | Implantable device for straightening and fixing vertebrae | |
| RU2302839C2 (en) | Implant having multiaxial head fixable in bone | |
| CA2289681C (en) | Anterior cervical plating system | |
| KR101079022B1 (en) | Multi-axial orthopedic device and system e.g. for spinal surgery | |
| US7803174B2 (en) | Dorsal adjusting multi-rod connector | |
| US5527311A (en) | Support for the human spine | |
| US5871485A (en) | Device for internal fixation of femoral neck fractures | |
| US7901433B2 (en) | Occipito-cervical stabilization system and method | |
| US20020161367A1 (en) | Anatomic posterior lumbar plate | |
| US20040220566A1 (en) | Slidable bone plate system | |
| US8652177B1 (en) | Systems and methods for treating spinal deformities | |
| ZA200200793B (en) | Vertebral osteosynthesis plate and osteosynthesis system. | |
| WO2008048923A2 (en) | Central rod connector and t-rod | |
| JP2004516040A (en) | Multi-shaft coupling device and method | |
| WO1994006360A1 (en) | Anterior thoracolumbar plate | |
| JPH01121046A (en) | Apparatus for maintaining relative position of spinal cord in spine | |
| JP2008114076A (en) | Bone plate having torsional rigidity variable in fixed angle hole | |
| JP5038401B2 (en) | Open type back adjustment coupling device | |
| EP3968879B1 (en) | Medical transverse connector having a floating bearing | |
| KR200297069Y1 (en) | Pedicle screw | |
| KR20040024683A (en) | Pedicle screw and pedicle screw assembly having the same | |
| AU766512B2 (en) | Anterior cervical plating system | |
| AU2003236423B2 (en) | Anterior Cervical Plating System | |
| RU19740U1 (en) | DEVICE FOR ATTACHING A TRANSPEDICULAR SCREW | |
| KR200353411Y1 (en) | A set screw and driver of pedicle screw system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |