CN112998915A - Bone loosening type locking spinal fusion cage - Google Patents
Bone loosening type locking spinal fusion cage Download PDFInfo
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- CN112998915A CN112998915A CN202110125720.0A CN202110125720A CN112998915A CN 112998915 A CN112998915 A CN 112998915A CN 202110125720 A CN202110125720 A CN 202110125720A CN 112998915 A CN112998915 A CN 112998915A
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- 230000004927 fusion Effects 0.000 title claims abstract description 111
- 210000000988 bone and bone Anatomy 0.000 title claims description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 22
- 208000001132 Osteoporosis Diseases 0.000 claims abstract description 15
- 230000006641 stabilisation Effects 0.000 claims abstract description 13
- 238000011105 stabilization Methods 0.000 claims abstract description 13
- 230000001009 osteoporotic effect Effects 0.000 claims abstract 2
- 230000002929 anti-fatigue Effects 0.000 claims description 9
- 230000003044 adaptive effect Effects 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 description 25
- 230000006978 adaptation Effects 0.000 description 11
- 241000587161 Gomphocarpus Species 0.000 description 7
- OFCNXPDARWKPPY-UHFFFAOYSA-N allopurinol Chemical compound OC1=NC=NC2=C1C=NN2 OFCNXPDARWKPPY-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000020084 Bone disease Diseases 0.000 description 1
- 206010061728 Bone lesion Diseases 0.000 description 1
- 206010006002 Bone pain Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
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- Orthopedic Medicine & Surgery (AREA)
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- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
本发明涉及医疗器械技术领域，且公开了一种骨质疏松型锁定脊柱融合器，包括脊柱下融合器，脊柱下融合器上表面的中部位置连接有舒适缓冲装置，脊柱下融合器的上方设置有脊柱上融合器，脊柱下融合器的一侧设置有间隙稳定调整装置，脊柱下融合器和脊柱上融合器的一侧均开设有螺栓斜孔，脊柱下融合器和脊柱上融合器的中部位置均安装有加强筋装置，舒适缓冲装置的内部安装有伸缩齿条。该骨质疏松型锁定脊柱融合器，通过设置加强筋装置和舒适缓冲装置配合使用，能够在使用者移动过程中起到缓冲的作用，使用者的脊柱间隙连接处不会出现僵硬和疼痛感，通过伸缩齿条和间隙稳定调整装置配合使用，能够使传动调整过程，简单便捷，安全可靠。
The invention relates to the technical field of medical devices, and discloses an osteoporosis type locking spinal fusion cage, comprising a sub-spinal cage, a comfortable buffering device is connected to the middle of the upper surface of the sub-vertebral cage, and the upper part of the sub-vertebral cage is arranged There is an upper spine cage, one side of the lower spine cage is provided with a gap stabilization adjustment device, one side of the lower spine cage and one side of the upper spine cage are provided with bolt oblique holes, and the middle of the lower spine cage and the upper spine cage are provided. Reinforcing rib devices are installed at all positions, and a telescopic rack is installed inside the comfort buffer device. The osteoporotic locking spinal fusion device is used in conjunction with a reinforcing rib device and a comfortable buffer device, which can play a buffering role during the user's movement, and the user's spinal gap connection will not appear stiffness and pain. The use of the telescopic rack and the gap stabilization adjustment device can make the transmission adjustment process simple, convenient, safe and reliable.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a bone loosening type locking spinal fusion cage.
Background
Osteoporosis, namely osteoporosis, is a group of bone diseases caused by various reasons, bone tissues have normal calcification, calcium salts and matrixes are in normal proportion, metabolic bone lesions are characterized by reduction of the amount of the bone tissues in unit volume, osteoporosis can occur in different sexes and any age, but is frequently seen in postmenopausal women and old men, and is characterized by bone pain and easy fracture, the locking spinal fusion cage can realize fixation of the fusion cage and a vertebral body through a locking mechanism arranged on the fusion cage, so that the limit of auxiliary fixation is eliminated, and a part of osteoporosis patients need to use the locking spinal fusion cage to carry out surgical treatment on the spinal column.
The invention is published (announced) in China: CN211187664U discloses a osteoporosis type locking spine fusion cage, which is characterized in that an inner hexagonal wrench is inserted into an inner hexagonal groove on a disc, the inner hexagonal wrench is rotated clockwise, the inner hexagonal wrench drives the disc, two worms of a rotating shaft and a connecting rod to rotate, the two worms respectively drive a corresponding worm wheel and corresponding lead screws to synchronously rotate in the same direction, because the two lead screws are respectively in threaded connection and matching with two threaded grooves, two support columns drive an upper fusion seat to move upwards, so that the thickness of the fusion cage is increased, similarly, the inner hexagonal wrench is rotated anticlockwise, so that the two support columns drive the upper fusion seat to move downwards, so that the thickness of the fusion cage is reduced, when the height position of the upper fusion seat is adjusted to a proper position, the disc is stopped to rotate, the inner hexagonal wrench is taken out, and the height position of the upper fusion seat is adjusted, the distance between the lower fusion seat and the upper fusion seat is increased or reduced, so that the thickness of the fusion cage is adjusted, and the use of the size of the intervertebral space of the spine of different patients is facilitated; the device is economical and practical, reasonable in design and convenient and fast to operate, the thickness of the fusion cage can be conveniently adjusted, the device can be conveniently used according to the size of the intervertebral space of the spine of different patients, the application range is improved, and the device is suitable for popularization and use; however, in the actual use process, through the structural design of the above-mentioned comparison patent, as the disc, the two worms of the rotating shaft and the connecting rod are driven to rotate by the hexagon socket wrench, the two worms respectively drive the corresponding worm wheel and the corresponding screw rod to synchronously rotate in the same direction, the structural principle is complex, and the transmission is unstable; and after the thickness to fusing the ware is adjusted, the clearance that fuses between seat and the last fusion seat down is connected through two support columns, does not set up buffer, and the user hardly has comfortable experience at the removal in-process, leads to the result of use to discount greatly, so proposes above-mentioned bone matter pine type locking backbone and fuses the ware in order to solve above-mentioned problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a bone loosening type locking spinal fusion cage, which solves the problems that the transmission structure between the upper fusion seat and the lower fusion seat is unstable and the gap is not provided with a buffer device in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
2. a bone loosening type locking spinal fusion cage comprises a spinal lower fusion cage, wherein a comfortable buffer device is connected to the middle position of the upper surface of the spinal lower fusion cage, an upper spinal fusion cage is arranged above the spinal lower fusion cage, and a gap stabilization adjusting device is arranged on one side of the spinal lower fusion cage;
one side of each of the lower spine fusion device and the upper spine fusion device is provided with a bolt inclined hole, the middle parts of the lower spine fusion device and the upper spine fusion device are provided with a reinforcing rib device, and one end of each of the lower spine fusion device and the upper spine fusion device is connected with an anti-slip tooth;
convenient locking screws are arranged in the bolt inclined holes; and a telescopic rack is arranged in the comfortable buffer device.
Furthermore, the lower bottom surface of the spinal fusion cage is connected with matched anti-slip teeth, one side of the spinal fusion cage is provided with a bolt inclined hole matched with a convenient locking screw, and the other side of the spinal fusion cage is provided with a gap stabilization adjusting device.
Furthermore, the upper surface of the fusion cage on the spine is connected with matched anti-skidding teeth, the convenient locking screws respectively comprise a threaded screw body, a cross-shaped screw head and a hexagonal flat head groove, one end of the threaded screw body is fixedly connected with the matched cross-shaped screw head, and the other end of the threaded screw body is provided with a matched hexagonal countersunk head groove.
Further, the strengthening rib device is including last strengthening rib, adjustment cavity and lower strengthening rib, go up the both ends of strengthening rib all with the spinal column of looks adaptation on fuse ware fixed connection, the both ends of strengthening rib all with the lower strengthening rib fixed connection of looks adaptation down, the adjustment cavity has been seted up to the inside of lower strengthening rib, it passes through comfortable buffer and lower strengthening rib swing joint to go up the strengthening rib.
Further, comfortable buffer is including elasticity cushion and antifatigue buffer spring, the elasticity cushion of the equal fixedly connected with looks adaptation in both ends of antifatigue buffer spring, one of them the middle part position fixed connection of bottom surface under elasticity cushion and the last strengthening rib, another the middle part position of elasticity cushion fixed connection strengthening rib upper surface under.
Further, elasticity cushion and flexible rack looks adaptation, anti-fatigue buffer spring's inside swing joint has the flexible rack of looks adaptation, flexible rack is including telescopic link and meshing tooth, the meshing tooth of the lower extreme fixedly connected with looks adaptation of telescopic link.
Further, the clearance stability adjusting device comprises a transmission gear, a transmission shaft and an inner angle countersunk groove, one end of the transmission shaft is fixedly connected with the middle position of one end of the transmission gear, the other end of the transmission shaft is provided with the inner angle countersunk groove matched with the transmission shaft, the clearance stability adjusting device is movably connected with the fusion cage under the vertebral column, the telescopic rack is meshed with the transmission gear through meshing teeth, and the telescopic rack is movably connected with the fusion cage under the vertebral column through the clearance stability adjusting device.
(III) advantageous effects
The invention provides a loose bone type locking spinal fusion cage, which has the following beneficial effects:
(1) the bone loosening type locking spinal fusion cage is matched with a comfortable buffer device through the arrangement of the reinforcing rib device, the upper reinforcing rib and the lower reinforcing rib can enable the upper spinal fusion cage and the lower spinal fusion cage to be stably and reliably arranged in the spinal clearance of a user, the elastic soft cushion and the anti-fatigue buffer spring can play a role in buffering in the moving process of the user, and the joint of the spinal clearance of the user cannot be stiff and painful; use through flexible rack and the cooperation of stable adjusting device in clearance, can rotate the adjustment to the stable adjusting device in clearance interior angle countersunk groove through the hexagonal spanner, in the adjustment process, the transmission shaft drives the drive gear of one end and carries out corresponding rotation, the meshing through drive gear and meshing tooth is connected, thereby it carries out corresponding rotation to drive the telescopic link, make on the backbone fuse clearance between the ware and the spinal fusion ware can bring comfortable experience for the user, easy operation is convenient, process safe and reliable, the security performance and the result of use of equipment have been promoted.
Drawings
FIG. 1 is a schematic structural view in elevation of an overall view of an osteoporosis-type locking spinal fusion cage of the present invention;
FIG. 2 is a schematic diagram showing the overall top view of the osteoporosis-type locking spinal fusion cage of the present invention;
FIG. 3 is a schematic overall left side elevational view of the osteoporosis-type locking spinal fusion cage of the present invention;
FIG. 4 is a schematic structural diagram of an overall right side view of the osteoporosis-type locking spinal fusion cage of the present invention;
fig. 5 is a schematic structural view of a telescopic rack and a transmission gear of the osteoporosis type locking spinal fusion cage of the present invention.
In the figure: the device comprises a spinal column lower fusion device 1, a spinal column upper fusion device 2, a bolt inclined hole 3, a convenient locking screw 4, a threaded nail body 401, a cross nail head 402, a hexagonal flat head groove 403, an anti-skidding tooth 5, a reinforcing rib device 6, an upper reinforcing rib 601, an adjusting cavity 602, a lower reinforcing rib 603, a comfortable buffer device 7, an elastic cushion 701, an anti-fatigue buffer spring 702, a telescopic rack 8, a telescopic rod 801, a meshing tooth 802, a gap stabilization adjusting device 9, a transmission gear 901, a transmission shaft 902 and an inner corner countersunk groove 903.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, the present invention provides a technical solution:
3. a bone loose type locking spinal fusion cage comprises a spinal lower fusion cage 1, wherein the middle position of the upper surface of the spinal lower fusion cage 1 is connected with a comfortable buffer device 7, an upper spinal fusion cage 2 is arranged above the spinal lower fusion cage 1, and one side of the spinal lower fusion cage 1 is provided with a gap stabilization adjusting device 9;
one side of each of the lower spine fusion device 1 and the upper spine fusion device 2 is provided with a bolt inclined hole 3, the middle parts of the lower spine fusion device 1 and the upper spine fusion device 2 are provided with a reinforcing rib device 6, and one end of each of the lower spine fusion device 1 and the upper spine fusion device 2 is connected with an anti-slip tooth 5;
As a preferred technical scheme of the invention: the lower bottom surface of the fusion cage 1 under the spine is connected with the anti-slip teeth 5 of the adaptation, one side of the fusion cage 1 under the spine is provided with the bolt inclined hole 3 matched with the convenient locking screw 4, the other side of the fusion cage 1 under the spine is provided with the gap stabilization adjusting device 9, the upper surface of the fusion cage 2 on the spine is connected with the anti-slip teeth 5 of the adaptation, the convenient locking screw 4 comprises the screw nail body 401, the cross nail head 402 and the hexagonal flat head groove 403, the cross nail head 402 matched with the one end of the screw nail body 401 is fixedly connected with the cross nail head 402, the hexagonal countersunk groove 403 matched with the cross nail head 402 is arranged at the other end of the screw nail body 401, the bolt inclined hole 3, the hexagonal flat head groove 403 and the cross nail head 402 are matched for use, the fusion cage 2 on the spine and the fusion cage 1 under the spine can be more conveniently and simply and conveniently installed in the spine gap of a user, the fusion cage 2 and the spine under the spine can be safely and reliably connected in the spine gap of And (5) fixing work.
As a preferred technical scheme of the invention: strengthening rib device 6 is including last strengthening rib 601, adjustment cavity 602 and lower strengthening rib 603, go up the both ends of strengthening rib 601 all with the spinal fusion cage 2 fixed connection on the backbone of looks adaptation, the both ends of lower strengthening rib 603 all with the lower strengthening rib 603 fixed connection of looks adaptation, adjustment cavity 602 has been seted up to the inside of lower strengthening rib 603, go up strengthening rib 601 through comfortable buffer 7 and lower strengthening rib 603 swing joint, comfortable buffer 7 is including elasticity cushion 701 and antifatigue buffer spring 702, the equal fixedly connected with elastic cushion 701 of looks adaptation in both ends of antifatigue buffer spring 702, the middle part position fixed connection of bottom surface under one of them elasticity cushion 701 and last strengthening rib 601, another elasticity cushion 701 fixed connection is in the middle part position of strengthening rib 603 upper surface under, use through setting up strengthening rib device 6 and the cooperation of comfortable buffer 7, go up strengthening rib 601 and lower strengthening rib 603 and can make on the spinal fusion cage 2 and spinal fusion cage 1 reliable and stable installation at the user under the user The elastic cushion 701 and the fatigue-resistant buffer spring 702 can play a role in buffering in the moving process of the user, and the spinal clearance connection part of the user cannot feel stiff and painful.
As a preferred technical scheme of the invention: the elastic cushion 701 is matched with the telescopic rack 8, the inner part of the fatigue-resistant buffer spring 702 is movably connected with the matched telescopic rack 8, the telescopic rack 8 comprises a telescopic rod 801 and meshing teeth 802, the lower end of the telescopic rod 801 is fixedly connected with the matched meshing teeth 802, the clearance stability adjusting device 9 comprises a transmission gear 901, a transmission shaft 902 and an inner angle countersunk groove 903, one end of the transmission shaft 902 is fixedly connected with the middle position of one end of the transmission gear 901, the other end of the transmission shaft 902 is provided with the matched inner angle countersunk groove 903, the clearance stability adjusting device 9 is movably connected with the spinal column fusion cage 1, the telescopic rack 8 is meshed with the transmission gear 901 through the meshing teeth 802, the telescopic rack 8 is movably connected with the spinal column fusion cage 1 through the clearance stability adjusting device 9, the telescopic rack 8 is matched with the clearance stability adjusting device 9 for use, the inner angle countersunk groove 903 of the clearance stability adjusting device 9 can be adjusted by rotating through a hexagonal wrench, in the adjustment process, transmission shaft 902 drives drive gear 901 of one end and carries out corresponding rotation, and the meshing through drive gear 901 and meshing tooth 802 is connected to drive telescopic link 801 and carry out corresponding rotation, make on the backbone fuse clearance between ware 2 and the spinal fusion ware 1 can bring comfortable experience for the user, easy operation is convenient, process safe and reliable has promoted the security performance and the result of use of equipment.
The operation principle of the osteoporosis locking spinal fusion cage is that in the normal condition and in the adjusting process, the inner corner countersunk groove 903 of the gap stabilization adjusting device 9 is rotationally adjusted through a hexagon wrench, the transmission shaft 902 drives the transmission gear 901 at one end to correspondingly rotate, and through the meshing connection between the transmission gear 901 and the meshing teeth 802, thereby driving the telescopic rod 801 to correspondingly rotate, leading the gap between the upper spine fusion cage 2 and the lower spine fusion cage 1 to bring comfortable experience to users, the upper spine fusion cage 2 and the lower spine fusion cage 1 can be more conveniently and simply arranged in the spine clearance of a user by matching the bolt inclined hole 3, the hexagonal flat head groove 403 and the cross nail head 402, through the anti-skidding teeth 5 and the threaded nail body 401, the upper spine fusion cage 2 and the lower spine fusion cage 1 can be safely and reliably connected and fixed in the spinal space of a user.
It is to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and the like are intended to be construed broadly and can include, for example, fixed and removable connections; or indirectly through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The loose bone type locking spinal fusion cage comprises a spinal fusion cage (1) and is characterized in that a comfortable buffer device (7) is connected to the middle position of the upper surface of the spinal fusion cage (1), an upper spinal fusion cage (2) is arranged above the spinal fusion cage (1), and a gap stabilization adjusting device (9) is arranged on one side of the spinal fusion cage (1);
one side of each of the lower spine fusion device (1) and the upper spine fusion device (2) is provided with a bolt inclined hole (3), the middle positions of the lower spine fusion device (1) and the upper spine fusion device (2) are respectively provided with a reinforcing rib device (6), and one end of each of the lower spine fusion device (1) and the upper spine fusion device (2) is connected with an anti-skidding tooth (5);
convenient locking screws (4) are arranged in the bolt inclined holes (3); and a telescopic rack (8) is arranged in the comfortable buffer device (7).
2. The osteoporosis-type locking spinal fusion cage according to claim 1, wherein the lower bottom surface of the spinal fusion cage (1) is connected with matched anti-slip teeth (5), one side of the spinal fusion cage (1) is provided with a bolt inclined hole (3) matched with the convenient locking screw (4), and the other side of the spinal fusion cage (1) is provided with a gap stabilization adjusting device (9).
3. The loose bone type locking spine fusion cage according to claim 1, wherein the upper surface of the fusion cage (2) on the spine is connected with matched anti-slip teeth (5), the convenient locking screws (4) comprise a threaded screw body (401), a cross head (402) and a hexagonal flat head groove (403), one end of the threaded screw body (401) is fixedly connected with the matched cross head (402), and the other end of the threaded screw body (401) is provided with a matched hexagonal countersunk head groove (403).
4. The osteoporotic locking spinal fusion cage according to claim 1, wherein the reinforcing rib means (6) comprises an upper reinforcing rib (601), an adjustment cavity (602) and a lower reinforcing rib (603), both ends of the upper reinforcing rib (601) are fixedly connected with the upper fusion cage (2) of the spinal column in a matching manner, both ends of the lower reinforcing rib (603) are fixedly connected with the lower reinforcing rib (603) in a matching manner, the adjustment cavity (602) is provided inside the lower reinforcing rib (603), and the upper reinforcing rib (601) is movably connected with the lower reinforcing rib (603) through a comfortable buffer means (7).
5. The osseous loosening type locking spinal fusion cage according to claim 1, wherein the comfort cushioning device (7) comprises an elastic cushion (701) and an anti-fatigue cushioning spring (702), the two ends of the anti-fatigue cushioning spring (702) are fixedly connected with the adaptive elastic cushion (701), one of the elastic cushions (701) is fixedly connected with the middle position of the lower bottom surface of the upper reinforcing rib (601), and the other elastic cushion (701) is fixedly connected with the middle position of the upper surface of the lower reinforcing rib (603).
6. The osteoporosis-type locking spinal fusion cage according to claim 1 or 5, wherein the elastic cushion (701) is adapted to a telescopic rack (8), the fatigue-resistant buffer spring (702) is movably connected with the adaptive telescopic rack (8), the telescopic rack (8) comprises a telescopic rod (801) and engaging teeth (802), and the lower end of the telescopic rod (801) is fixedly connected with the adaptive engaging teeth (802).
7. The osteoporosis-type locking spine fusion cage according to claim 1 or 6, wherein the gap stabilization adjusting device (9) comprises a transmission gear (901), a transmission shaft (902) and an inner angle countersunk groove (903), one end of the transmission shaft (902) is fixedly connected with the middle position of one end of the transmission gear (901), the other end of the transmission shaft (902) is provided with the inner angle countersunk groove (903) which is matched with the other end of the transmission shaft, the gap stabilization adjusting device (9) is movably connected with the spine fusion cage (1), the telescopic rack (8) is meshed with the transmission gear (901) through meshing teeth (802), and the telescopic rack (8) is movably connected with the spine fusion cage (1) through the gap stabilization adjusting device (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110125720.0A CN112998915A (en) | 2021-01-29 | 2021-01-29 | Bone loosening type locking spinal fusion cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110125720.0A CN112998915A (en) | 2021-01-29 | 2021-01-29 | Bone loosening type locking spinal fusion cage |
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| CN112998915A true CN112998915A (en) | 2021-06-22 |
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| CN202110125720.0A Pending CN112998915A (en) | 2021-01-29 | 2021-01-29 | Bone loosening type locking spinal fusion cage |
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Application publication date: 20210622 |