CN214434676U - Rotatable interbody fusion cage capable of preventing bone grafting from falling off and assembly thereof - Google Patents
Rotatable interbody fusion cage capable of preventing bone grafting from falling off and assembly thereof Download PDFInfo
- Publication number
- CN214434676U CN214434676U CN202023102886.0U CN202023102886U CN214434676U CN 214434676 U CN214434676 U CN 214434676U CN 202023102886 U CN202023102886 U CN 202023102886U CN 214434676 U CN214434676 U CN 214434676U
- Authority
- CN
- China
- Prior art keywords
- barb
- rotatable
- fusion cage
- interbody fusion
- bone
- 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.)
- Active
Links
Images
Abstract
The utility model provides a prevent that bone grafting drops, its subassembly of rotatable interbody fusion cage belongs to the medical instrument field. The utility model provides a prevent that bone grafting drops, rotatable interbody fusion cage, is the cuboid form, and inside has the cavity that holds the broken bone, include: two barb plates that set up relatively, two smooth plates, roof and the bottom plate that sets up relatively, have the screw hole on the bottom plate. The utility model also provides a prevent that the bone grafting drops, rotatable interbody fusion cage subassembly, include: the above-described intervertebral cage; and an interbody cage implant for use with an interbody cage. The utility model provides an interbody fusion cage can prevent that intervertebral space implantates the bone and drops, and is rotatable to can improve and plant bone area of contact, promote interbody fusion efficiency.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to prevent that bone grafting drops, its subassembly of rotatable interbody fusion cage.
Background
With the change of modern life and work patterns, the incidence rate of degenerative diseases of the spine is remarkably increased. Currently, the gold standard for spinal surgery is the fusion internal fixation surgery. When spinal nerve decompression is completed, intervertebral space is fused so as to achieve the effect of long-term spinal stabilization. In order to achieve the purpose of intervertebral fusion, at present, intervertebral fusion devices implanted with autogenous bones or allogeneic bones are mostly adopted to complete the intervertebral fusion after intervertebral space treatment. Therefore, it is necessary to implant a decompressed autologous bone or an allogeneic bone into the intervertebral space, and implant a bone into the intervertebral cage to promote intervertebral fusion.
Currently, the conventional intervertebral cage has the following problems: 1. the bone grafting window of present fusion cage is mostly open structure, and the bone is planted in the fusion cage relies on loose pressure to fill the maintenance, causes to be strikeed by the hammer and puts into the in-process in intervertebral disc space at the fusion cage, and the broken granule of bone is planted in the fusion cage easily drops. The fusion cage is planted the bone and is fallen and cause the fusion cage to plant the bone volume inadequately and influence interbody fusion effect on the one hand, and the broken bone piece is remained easily between spinal cord and centrum trailing edge even in the nerve root pipe on the other hand, causes postoperative pain. 2. At present, the fusion cage is mostly an upper surface and a lower surface hollow out structure for bone grafting on two surfaces, and the left surface and the right surface are mostly closed type plane structures. Therefore, the bone grafting amount and the bone grafting contact area in the fusion cage are limited, and the intervertebral fusion is limited only by the closed contact of the upper surface and the lower surface of the fusion cage, so that the nutrition in the fusion cage is limited, and the intervertebral fusion efficiency is influenced. The intervertebral fusion mainly uses the peripheral osseous fusion of the fusion cage, the internal osseous fusion of the fusion cage is assisted, and the closed structures on the left side and the right side of the fusion cage reduce the peripheral osseous fusion efficiency of the fusion cage; 3. the contact surface between the interbody fusion cage and the intervertebral space is smooth, so that the problems of the fusion cage displacement and the like easily occur under the action of stress, and the operation effect and the interbody fusion efficiency are influenced; 4. four corners of the vertebral body fusion device are generally right angles, and the rotation in the intervertebral space is difficult, so that the fracture of the end plate is easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model is carried out for solving the problems, and aims to provide a rotatable intervertebral fusion cage assembly which can prevent the falling of the bone graft.
The utility model provides a prevent that bone grafting drops, rotatable interbody fusion cage, be the cuboid form, inside has the cavity that holds the broken bone, has such characteristic, include: each barb plate clamping groove is provided with at least one barb face bone grafting hole communicated with the cavity, each barb plate clamping groove is provided with a barb plate clamping groove opening, and the barb plate clamping groove openings are positioned on the same side; each smooth plate clamping groove is internally provided with at least one smooth surface bone grafting hole communicated with the cavity, each smooth plate clamping groove is provided with a smooth plate clamping groove opening, and the smooth plate clamping groove opening and the barb plate clamping groove opening are positioned on the same side; the top plate is formed between the two barb plates and is positioned on one side far away from the opening of the barb plate clamping groove; and the bottom plate is formed between the two barb plates and is arranged opposite to the top plate, and the bottom plate is provided with a threaded hole.
The utility model provides an among the intervertebral fusion cage that prevents that the bone grafting from droing, rotatable, can also have such characteristic: wherein, the crossing department of two barb plates and two smooth plates is provided with the connection face of a pair of relative setting at least, connects the face and is the arcwall face or smooth plane.
The utility model provides an among the intervertebral fusion cage that prevents that the bone grafting from droing, rotatable, can also have such characteristic: wherein, a plurality of barbs form the surface of barb board and are located the both sides in barb face bone grafting hole.
The utility model provides an among the intervertebral fusion cage that prevents that the bone grafting from droing, rotatable, can also have such characteristic: wherein, the barb is right-angle shape barb, and the hypotenuse of right-angle shape barb is towards the roof.
The utility model provides an among the intervertebral fusion cage that prevents that the bone grafting from droing, rotatable, can also have such characteristic: wherein the top plate is provided with a bulge in the direction back to the cavity.
The utility model provides an among the intervertebral fusion cage that prevents that the bone grafting from droing, rotatable, can also have such characteristic: wherein, the bulge is a smooth arc bulge.
The utility model provides a prevent that bone grafting drops, rotatable interbody fusion cage subassembly, include: any one of the above-mentioned intervertebral fusion cage which can prevent bone graft from falling off and can be rotated; and the intervertebral fusion device implanter is used for being matched with the rotatable intervertebral fusion device for preventing the bone graft from falling off.
The utility model provides a pair of prevent that bone grafting drops, among rotatable interbody fusion cage subassembly, still have such characteristic, wherein, interbody fusion cage implantation device includes: the holding rod is provided with a holding section and a hollow rod section with a hollow interior; the installation pole, including the atress section, straight pole section and the screw thread pole section that set gradually, straight pole section is worn to establish in hollow pole section, and the screw thread pole end has and prevents that the bone grafting from droing, the screw hole assorted screw thread on the bottom plate of rotatable interbody fusion cage, is provided with the atress on the atress section.
The utility model provides a pair of prevent that bone grafting drops, rotatable interbody fusion cage subassembly in, still have such characteristic, wherein, the centre gripping section is used for the above-mentioned arbitrary one of centre gripping to prevent that bone grafting drops, rotatable interbody fusion cage, include: the two barb plate clamping pieces are oppositely arranged, the size of each barb plate clamping piece is matched with the barb plate clamping groove of the interbody fusion cage, the barb plate clamping pieces are used for shielding the bone grafting holes of the barb plates of the interbody fusion cage in the bone grafting process, and one end of each barb plate clamping piece is fixed on the hollow rod section; and two smooth plate clamping pieces which are arranged oppositely, the size of each smooth plate clamping piece is matched with the smooth plate clamping groove of the interbody fusion cage, the smooth plate clamping grooves are used for shielding the interbody fusion cage in the bone grafting process, and one end of each smooth plate clamping piece is fixed on the hollow rod section.
The utility model provides a pair of prevent that bone grafting drops, among the rotatable interbody fusion cage subassembly, still have such characteristic, wherein, the extending direction of the section of gripping and the extending direction mutually perpendicular of hollow rod end.
The utility model provides a pair of prevent that bone grafting drops, rotatable interbody fusion cage subassembly in, still have such characteristic, wherein, the global anti-skidding screw thread that is provided with of atress spare.
The utility model provides a pair of prevent that bone grafting drops, among the rotatable interbody fusion cage subassembly, still have such characteristic, wherein, be provided with on the atress piece and get and put the piece to the person of facilitating the use takes out the installation pole from holding the pole or the person of facilitating the use places the installation pole and holds the pole.
Action and effect of the utility model
According to the utility model relates to a prevent to plant bone and drop, rotatable interbody fusion cage because the bone grafting hole has all been seted up on the four sides, so, the utility model provides an interbody fusion cage can improve and plant bone area of contact, promotes interbody fusion efficiency.
Further, according to the utility model relates to a prevent that bone grafting drops, rotatable interbody fusion cage because be provided with a plurality of barbs on two barb boards that set up relatively, so at the in-process of bone grafting operation, combine more closely between fusion cage and the vertebra, thereby difficult aversion can promote the operation effect.
According to the utility model relates to a prevent that bone grafting from droing, rotatable interbody fusion cage subassembly because including the interbody fusion cage implantation device that can plant the bone hole with the fusion cage and all shelter from, thereby can prevent the bone grafting granule in the fusion cage at the bone grafting in-process and drop and influence the bone grafting effect.
According to the utility model relates to a prevent that bone grafting from droing, rotatable interbody fusion cage subassembly because four angles of fusion cage, wherein two relative angles are arc (or trapezoidal), and the used rotation that can be used for the fusion cage to put into behind the intervertebral space.
Drawings
FIG. 1 is a schematic view of a rotatable intervertebral cage for preventing bone graft from falling off according to an embodiment of the present invention;
FIG. 2 is a schematic view of a base plate of a rotatable intervertebral cage for preventing bone graft from falling off according to an embodiment of the present invention;
fig. 3 is a schematic view of an embodiment of an interbody fusion implant of the present invention;
FIG. 4 is a schematic structural view of a holding rod according to an embodiment of the present invention;
FIG. 5 is a side view of the hollow rod end and clamping section in an embodiment of the invention; and
fig. 6 is a schematic structural diagram of a mounting rod in an embodiment of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the present invention is specifically described below with reference to the embodiments and the accompanying drawings.
< example >
The embodiment provides a prevent that bone grafting drops, rotatable interbody fusion cage subassembly, this subassembly includes: a bone graft detachment prevention, a rotatable interbody cage 100, and an interbody cage implant 200 for use with interbody cage 100.
Fig. 1 is a schematic structural view of a rotatable intervertebral fusion cage for preventing bone graft from falling off according to an embodiment of the present invention.
As shown in fig. 1, the intervertebral fusion cage 100 for preventing bone graft from falling off and rotating has a substantially rectangular parallelepiped shape, and has a cavity formed therein for receiving bone graft fragments, including: two oppositely disposed barbed plates 110, two oppositely disposed smooth plates 120, a top plate 130, a bottom plate 140, and two oppositely disposed connecting plates 150.
A barb plate groove 111 is formed on one surface of the barb plate 110, a barb face bone grafting hole 112 communicated with a cavity is formed in the barb plate groove 111, and a plurality of barbs 113 are formed at both sides of the barb plate groove 111. The barb plate groove 111 is formed with an opening on the side near the bottom plate 140. In this embodiment, the plurality of barbs 113 are right angle barbs and the hypotenuse of all barbs 113 is oriented in the same direction, all toward the top plate 130.
The smooth plate 120 is formed with a smooth plate recess 121, and a smooth bone grafting hole 122 communicating with the cavity is formed in the smooth plate recess 121. The smooth plate groove 121 is formed with an opening at a side near the bottom plate 140. In this embodiment, the two smoothing plates 120 are integrally formed with the two barbed plates 110, respectively.
The top plate 130 is an arc plate with a smooth surface, and is disposed between the two barb plates 110, and the arc convex square faces away from the cavity. In this embodiment, the top plate 130 is also integrally formed with the two smoothing plates 120 and the two barbed plates 110.
Fig. 2 is a schematic view of a base plate of a rotatable intervertebral fusion cage for preventing bone graft from falling off according to an embodiment of the present invention.
As shown in FIG. 2, the bottom plate 140 is disposed opposite the top plate 130 and is generally rectangular with four sides having notches corresponding to the openings of the barb plate grooves 111 and the openings of the smooth plate grooves 121, respectively. The middle portion of base plate 140 has a threaded bore 141 for mating with interbody fusion implant 200.
Two connecting plates 150 are oppositely formed at the intersection of barb plate 110 and smoothing plate 120. in this embodiment, the surface of connecting plate 150 is a smooth flat surface, and in other embodiments, the surface of connecting plate 150 may be a smooth arc surface. Such design can be put into the rotation behind the intervertebral space at the fusion cage, and the adjustment is more convenient.
Fig. 3 is a schematic view of an embodiment of an interbody fusion device implant of the present invention.
As shown in fig. 3, intervertebral cage implant 200 includes: a gripping bar 210 and a mounting bar 220.
Fig. 4 is a schematic structural diagram of a holding rod according to an embodiment of the present invention.
As shown in fig. 4, the grip lever 210 includes: a hollow rod section 211, a connecting section 212, a gripping section 213 and a clamping section 214.
The hollow rod section 211 is a straight rod with a hollow interior, and a through hole extending along the length direction is formed in the center of the hollow rod section.
A connecting section 212 is formed at the side of the hollow rod section for connecting the hollow rod section 211 and the grip section 213.
The holding section 213 is mounted on the connecting section 212, and the extending direction of the holding section 213 is perpendicular to the extending direction of the hollow rod section 211. In other embodiments, a slip-resistant sleeve may be provided around the outer surface of the gripping section 213.
Fig. 5 is a side view of a hollow rod end and clamping section in an embodiment of the invention.
As shown in FIG. 5, the clamping section 214 is adapted to receive the cage 100 during bone grafting and includes two opposed barbed plate clamping tabs 214a and two opposed smooth plate clamping tabs 214 b.
Barb plate gripping tabs 214a are provided at one end of hollow stem section 211 and are sized to match barb plate grooves 111. in other embodiments, barb plate gripping tabs 214a may be sized to be smaller than barb plate grooves 111, but need to completely cover barb face bone graft holes 112.
Smooth plate clamping piece 214b and barbed plate clamping piece 214a are disposed at the same end of hollow rod section 211, and the size of the same matches smooth plate groove 121. in other embodiments, the size of barbed plate clamping piece 214a may also be smaller than the size of smooth plate groove 121, but it is necessary to completely cover smooth bone-grafting hole 122.
Fig. 6 is a schematic structural diagram of a mounting rod in an embodiment of the present invention.
As shown in fig. 6, the mounting rod 220 includes: a straight rod section 221, a force-bearing member 222, and a threaded rod section 223.
The straight pole section 221 is in use disposed through the interior of the hollow pole section 211.
The force receiving member 222 is disposed at one end of the straight rod section 221 and has a size larger than the through hole of the hollow tube section 211. In this embodiment, the force receiving member 222 is a cylinder having an anti-slip thread formed on one circumferential surface. In other embodiments, the force-receiving member may have another shape (e.g., a rectangular parallelepiped) that is convenient to hold so as to facilitate the installation rod 220 to be taken out of the holding rod 210 after the use is completed, or a pick-and-place piece may be separately disposed on the force-receiving member, and the pick-and-place piece may be vertically disposed on the circumferential surface of the force-receiving member so as to facilitate the installation rod 220 to be taken out of the holding rod 210 after the use is completed.
A threaded rod segment 223 is disposed at an end of the straight rod segment 221 distal from the force-receiving member 222 and has threads that mate with the threaded bore 141 in the base plate 140 of the intersomatic cage 100 for securing the intersomatic cage 100 during a bone grafting procedure.
The use method of the rotatable intervertebral fusion device assembly for preventing the bone graft from falling off provided by the embodiment is as follows:
step 1, filling broken bones into the intervertebral fusion cage 100, and arranging an installation rod 220 in a holding rod 210 in a penetrating way;
step 2, the intervertebral cage 100 is fixed on the intervertebral cage implanter 200 through the matching of the threaded hole on the bottom plate 140 of the intervertebral cage 100 and the threaded rod segment 223 of the mounting rod 220;
step 3, adjusting the position of the interbody fusion cage 100 to enable the barb plate clamping pieces 214a to completely cover the barb face bone grafting holes 112 and the smooth plate clamping pieces 214b to completely cover the smooth face bone grafting holes 122, so as to prevent broken bones in the interbody fusion cage 100 from falling off in advance in the subsequent steps;
and 4, performing bone grafting operation. The interbody fusion cage implanting device is matched with the interbody fusion cage to be inserted into a corresponding intervertebral space, the interbody fusion cage is placed into the intervertebral space by using a hammer, and after the interbody fusion cage reaches a designated position, the interbody fusion cage rotates according to requirements. After the interbody fusion cage is adjusted, the interbody fusion cage implanting device is drawn out. Even if the bone grafting cavity of the interbody fusion cage at this moment is not shielded by the baffle, because the interbody fusion cage is inserted into intervertebral space, the upper centrum lower edge connected with the interbody fusion cage seals the cavity mouth on the bone grafting cavity, and the lower centrum upper edge connected with the interbody fusion cage seals the cavity mouth under the bone grafting cavity, even if the position of the interbody fusion cage is adjusted by the subsequent implant without the baffle, the broken bones in the bone grafting cavity can not fall out along with the shake-off of the interbody fusion cage.
Effects and effects of the embodiments
According to the bone grafting that prevents that this embodiment relates drops, rotatable interbody fusion cage, because the bone grafting hole has all been seted up on the four sides, so, the utility model provides an interbody fusion cage can improve bone grafting area of contact, promotes interbody fusion efficiency.
Further, according to the intervertebral fusion cage capable of preventing the bone grafting from falling off and rotating related to the embodiment, because the two barb plates which are oppositely arranged are provided with the plurality of barbs, the intervertebral fusion cage is more tightly combined with the vertebrae in the bone grafting operation process, and the intervertebral fusion cage is not easy to shift so as to improve the operation effect.
Further, according to the rotatable intervertebral cage for preventing bone graft from falling off in the present embodiment, since the cage has four corners, two opposite corners of which are arc-shaped (or trapezoidal), the cage can be rotated after being inserted into the intervertebral space to adjust the position of the cage.
According to the intervertebral fusion cage assembly capable of preventing the bone grafting from falling and rotating, which is related to the embodiment, the intervertebral fusion cage assembly comprises the intervertebral fusion cage implanting device which can shield all the bone grafting holes of the fusion cage, so that the bone grafting effect can be prevented from being influenced by the falling of bone grafting particles in the fusion cage in the bone grafting process.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
1. The utility model provides a prevent that bone grafting drops, rotatable interbody fusion cage, is the cuboid form, and inside has the cavity that holds the garrulous bone, a serial communication port, includes:
the barb plate clamping groove is internally provided with at least one barb surface bone grafting hole communicated with the cavity, each barb plate clamping groove is provided with a barb plate clamping groove opening, and the barb plate clamping groove openings are positioned on the same side;
each smooth plate clamping groove is internally provided with at least one smooth surface bone grafting hole communicated with the cavity, each smooth plate clamping groove is provided with a smooth plate clamping groove opening, and the smooth plate clamping groove opening and the barbed plate clamping groove opening are positioned on the same side;
the top plate is formed between the two barb plates and is positioned on one side far away from the opening of the barb plate clamping groove; and
the bottom plate is formed between the two barb plates and is opposite to the top plate, and a threaded hole is formed in the bottom plate.
2. The bone graft detachment prevention rotatable interbody fusion cage of claim 1, wherein:
wherein, it is a plurality of the barb forms the surface of barb board just is located the both sides in bone hole are planted to the barb face.
3. The bone graft detachment prevention rotatable interbody fusion cage of claim 1, wherein:
wherein, the barb is right-angle shape barb, just the hypotenuse orientation of right-angle shape barb the roof.
4. The bone graft detachment prevention rotatable interbody fusion cage of claim 1, wherein:
wherein the top plate is formed with a protrusion in a direction away from the cavity.
5. The bone graft detachment prevention rotatable intervertebral fusion cage of claim 4, wherein:
wherein, the protrusion is a smooth arc protrusion.
6. A rotatable interbody fusion cage assembly for preventing bone graft loss, comprising:
a bone graft detachment prevention rotatable intervertebral cage according to any one of claims 1 to 5; and
the intervertebral fusion device implanter is used for being matched with the rotatable intervertebral fusion device for preventing the bone graft from falling off.
7. The bone graft detachment prevention rotatable interbody fusion cage assembly of claim 6,
wherein the interbody cage implant comprises:
the holding rod is provided with a holding section, a hollow rod section with a hollow interior and a clamping section arranged at one end of the hollow rod section;
the installation pole, including the atress section, straight pole section and the screw thread pole section that set gradually, straight pole section wears to establish in the hollow pole section, the screw thread pole end have with prevent that the bone grafting drops, rotatable interbody fusion cage on the bottom plate screw hole assorted screw thread, be provided with the atress on the atress section.
8. The bone graft detachment prevention rotatable interbody fusion cage assembly of claim 7,
wherein, the clamping section is used for clamping the bone graft falling prevention rotatable intervertebral fusion device of any one of claims 1 to 5, and comprises:
the two barb plate clamping pieces are oppositely arranged, the size of each barb plate clamping piece is matched with the barb plate clamping groove of the interbody fusion cage, the barb plate clamping pieces are used for shielding bone grafting holes of the interbody fusion cage in the bone grafting process, and one end of each barb plate clamping piece is fixed on the hollow rod section; and
two smooth plate holding pieces that set up relatively, its size with the smooth plate centre gripping recess phase-match of interbody fusion cage for shelter from at the bone grafting in-process the smooth plate of interbody fusion cage plants the bone hole, every the one end of two smooth plate holding pieces is fixed on the hollow rod section.
9. The bone graft detachment prevention rotatable interbody fusion cage assembly of claim 7,
wherein, the extension direction of the holding section is vertical to the extension direction of the hollow rod section.
10. The bone graft detachment prevention rotatable interbody fusion cage assembly of claim 7,
wherein, the global of atress spare is provided with anti-skidding screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023102886.0U CN214434676U (en) | 2020-12-21 | 2020-12-21 | Rotatable interbody fusion cage capable of preventing bone grafting from falling off and assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023102886.0U CN214434676U (en) | 2020-12-21 | 2020-12-21 | Rotatable interbody fusion cage capable of preventing bone grafting from falling off and assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214434676U true CN214434676U (en) | 2021-10-22 |
Family
ID=78191178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023102886.0U Active CN214434676U (en) | 2020-12-21 | 2020-12-21 | Rotatable interbody fusion cage capable of preventing bone grafting from falling off and assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214434676U (en) |
-
2020
- 2020-12-21 CN CN202023102886.0U patent/CN214434676U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5584831A (en) | Spinal fixation device and method | |
| US9192483B1 (en) | Spinal fusion system | |
| US7806912B2 (en) | Transverse rod connector | |
| US6666866B2 (en) | Spinal intervertebral implant insertion tool | |
| US8002837B2 (en) | Spinal stabilization device and methods | |
| US8556976B2 (en) | Spinal interbody spacer device | |
| US8083798B2 (en) | Non-circular stabilization sphere and method | |
| US8480739B2 (en) | C1-C2 implant and methods of use | |
| US8623053B2 (en) | Method and apparatus for spinal facet fusion | |
| KR100704150B1 (en) | Spinal Pedicle Screw | |
| US9717540B2 (en) | Inter-spinous process device and method | |
| US20090099664A1 (en) | Subtalar implant and kit | |
| CN101268963A (en) | Adjustable intervertebral fusion device and holding device | |
| CN201108492Y (en) | Synarthrosis machine within atlantoaxial | |
| KR101053427B1 (en) | Interspine implant | |
| CN102232881B (en) | Lumbar interbody fusion device | |
| CN214434676U (en) | Rotatable interbody fusion cage capable of preventing bone grafting from falling off and assembly thereof | |
| CN109806034A (en) | Lumbar vertebral posterior interbody cage systems | |
| JPH0663068A (en) | Thigh part of coxa prosthesis | |
| CN105455926A (en) | Vertebral plate interbody fusion cage | |
| CN217366054U (en) | Multi-anchor screw unit and multi-anchor screw assembly for fixing lumbar vertebra and sacrum | |
| CN205286616U (en) | Fuse ware between vertebral plate | |
| CN203107337U (en) | Atlanto-axial lateral mass joint fusion device | |
| CN216021554U (en) | Transverse interbody fusion cage and implantation instrument assembly | |
| CN2403382Y (en) | Lumbar posterior pyramid fusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |