CN112155703B - Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins - Google Patents
Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins Download PDFInfo
- Publication number
- CN112155703B CN112155703B CN202011148357.6A CN202011148357A CN112155703B CN 112155703 B CN112155703 B CN 112155703B CN 202011148357 A CN202011148357 A CN 202011148357A CN 112155703 B CN112155703 B CN 112155703B
- Authority
- CN
- China
- Prior art keywords
- screw
- rotating
- built
- internal fixation
- wheel
- 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
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
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a built-in locking screw type lumbosacral vertebral axial fusion internal fixing device, which belongs to the field of medical treatment and comprises a screw lower part and a screw upper part which are spliced with each other, wherein the screw lower part and the screw upper part are detachably installed through a fixing screw, the outer surfaces of the screw lower part and the screw upper part are jointly provided with threads, one end of the screw lower part and one end of the screw upper part are tip ends, the other end of the screw lower part and the screw upper part are rotating ends, the rotating ends of the screw lower part and the screw upper part are jointly provided with a large rotating hole, and a rotating wheel is rotatably arranged inside one end, close to the large rotating hole, of the screw lower part. This scheme is through fusing built-in side direction lock pin at lumbosacral vertebra axial internal fixation device, and the torsion is exerted in swiveling wheel one side to the accessible after implanting, and through the cooperation of each mechanism in the device, can get into the sclerotin with built-in side direction lock pin from inside to outside sideway swivel, only needs an incision, and is little to the patient damage to can provide better compression, front and back, side direction stable form.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to a built-in lock pin type lumbosacral vertebral axial fusion internal fixation device.
Background
The axial lumbar interbody fusion through the sacral anterior space approach is a novel minimally invasive intervertebral fusion technology which is emerged in recent years. Compared with the traditional intervertebral fusion, the method has the advantages of high vertebral body fusion rate, less bleeding, short hospitalization time, less iatrogenic complications and the like, and is safe and effective in clinical application. But the pure axial screw anti-rotation and axial compression force has the defect that the long-term front column support cannot be provided, thereby causing segment settlement and front convex loss. If the stability of the fixation is enhanced by the posterior percutaneous pedicle screw, the intervertebral fusion rate can be improved. However, the method is equivalent to performing two minimally invasive operations, and the defects of large tissue trauma, much bleeding, long recovery time, high clinical treatment cost and the like also occur.
The invention patent with publication number CN104146756A discloses a minimally invasive lumbosacral vertebral belt lock axial fusion internal fixation system. The device comprises a porous connecting block, and a positioning and aiming device and a screw implanting device which are arranged on the porous connecting block, wherein a positioning and aiming mechanism is arranged on the positioning and aiming device, and a fixing device is arranged between the porous connecting block and the screw implanting device.
Although the fusion internal fixation system has higher implantation precision and good fixation effect, the fusion internal fixation system has the following defects:
1. in the operation process, the locking screws enter the lumbosacral vertebrae of a human body from different positions outside the body, at least three wounds are left on the body surface, the bleeding amount is large, and the recovery time of a patient is long.
2. The operation steps are complicated, and the operation time is long.
The invention patent with publication number CN105250056A discloses a minimally invasive lumbosacral vertebra one-way axial fusion internal fixation system with thorns, which comprises an implantation rod, an internal fixation device, a thorns pushing mechanism, a front thorns mechanism, a rear thorns mechanism, a plug pushing rod, a front plug and a rear plug.
The fusion internal fixation system only needs one incision, but has the following defects:
1. the barbed sheets have a small cross-sectional area and provide limited support in the directions of compression, tension, forward flexion, and backward extension.
2. The spinous process is inserted into the bone directly from the axial fusion internal fixation system in a rotating manner, with the risk of fracture of the spinous process.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a built-in lock pin type lumbosacral vertebrae axial fusion internal fixation device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a built-in lock pin type lumbosacral vertebral axial fusion internal fixation device comprises a screw lower part and a screw upper part which are spliced with each other, wherein the screw lower part and the screw upper part are detachably mounted through a fixing screw, the outer surfaces of the screw lower part and the screw upper part are jointly provided with threads, one end of the screw lower part and one end of the screw upper part are pointed ends, the other end of the screw lower part and the rotating end of the screw upper part are rotary ends, a large rotary hole is jointly formed in the rotating end of the screw lower part and the rotating end of the screw upper part, a rotary wheel is rotatably arranged in the screw lower part close to one end of the large rotary hole, a small rotary hole is formed in one side of the rotary wheel close to the large rotary hole, a first rotary shaft is fixed on the other side of the rotary wheel, a small gear is fixed at one end of the first rotary shaft far away from the rotary wheel, the small gear is meshed with a large gear, and a second rotary shaft is fixed at one side of the large gear far away from the small gear;
two rectangular channels have been seted up on the roof of screw lower part, all install the transmission shaft through the backup pad rotation in the rectangular channel, be close to second pivot one side install the bevel gear on the lateral wall of transmission shaft, the one end that the gear wheel was kept away from in the second pivot is installed the bevel gear equally, two bevel gear intermeshing, the chain groove has still been seted up on the roof of screw lower part, two the transmission shaft all extends to the chain inslot and installs the sprocket, two the sprocket passes through chain drive, one side that the chain groove was kept away from to the rectangular channel is seted up threaded hole, and the threaded hole sets up the diapire on roof and the screw upper portion of screw lower part jointly, the screw hole internal thread is installed and is bored self-tapping screw, the one end of self-drilling self-tapping screw and the transmission shaft sliding connection of homonymy.
Further, all set up the ring channel that corresponds with the swiveling wheel on the roof of screw lower part and the diapire on screw upper portion, all set up the gear groove that corresponds with pinion and gear wheel on the roof of screw lower part and the diapire on screw upper portion, rectangular channel and chain groove have equally been seted up on the diapire on screw upper portion, screw lower part and screw upper portion all seted up with set screw assorted screw hole.
Furthermore, a positioning plate is arranged on the bottom wall of the upper part of the screw, and a positioning hole matched with the positioning plate is formed in the top wall of the lower part of the screw
Furthermore, the number of the fixing screws is two.
Furthermore, the number of the positioning plates is two.
Further, the cross section of the transmission shaft extending to one end of the interior of the self-drilling and self-tapping screw is square.
Furthermore, the transmission shaft and the support plate are rotatably mounted through a limiting bearing.
Further, bearings are installed on the first rotating shaft and the second rotating shaft, and the bearings and the lower portions of the screws are rotatably installed.
Compared with the prior art, the invention has the beneficial effects that:
this scheme is through fusing built-in side direction lock nail of internal fixation device at lumbosacral vertebra axial, and the torsion is applyed in swiveling wheel one side to the accessible after implanting, and through the cooperation of each mechanism in the device, can be with the rotatory sclerotin that gets into of built-in side direction lock nail from inside to outside, only needs an incision, and it is little to the patient damage to can provide better compression, front and back, side direction stable form.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of the overall structure of a built-in locking nail type lumbosacral vertebrae axial fusion internal fixation device according to the present invention;
FIG. 2 is a top view of an internal fixation device for axial lumbosacral fusion with internal locking nails in accordance with the present invention;
FIG. 3 is a left side view of an internal fixation device for axial lumbosacral fusion with internal locking nails in accordance with the present invention;
FIG. 4 is a top view of the lower portion of the screw;
FIG. 5 is a top view of the upper portion of the screw;
FIG. 6 is an enlarged view of a portion a of the structure of FIG. 4;
FIG. 7 is an enlarged view of the structure of portion b of FIG. 4;
fig. 8 is an enlarged view of a portion c of the structure of fig. 4.
In the figure: the self-drilling self-tapping screw comprises a screw lower portion 1, a screw upper portion 2, a fixing screw 3, a large rotating hole 4, a rotating wheel 5, a small rotating hole 501, a first rotating shaft 6, a small gear 7, a large gear 8, a second rotating shaft 9, a self-drilling self-tapping screw 10, a transmission shaft 11, a supporting plate 12, a bevel gear 13, a chain wheel 14, a chain 15, a screw hole 16, a positioning plate 17 and a positioning hole 18.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, a built-in lock pin type lumbosacral vertebrae axial fusion internal fixation device comprises a screw lower part 1 and a screw upper part 2 which are spliced with each other, the screw lower part 1 and the screw upper part 2 are spliced together to form a complete large screw, the screw lower part 1 and the screw upper part 2 are detachably mounted through a fixing screw 3, the outer surfaces of the screw lower part 1 and the screw upper part 2 are jointly provided with threads, one ends of the screw lower part 1 and the screw upper part 2 are pointed ends, the other ends of the screw lower part 1 and the screw upper part 2 are rotary ends, the rotary ends of the screw lower part 1 and the screw upper part 2 are jointly provided with a large rotary hole 4, a rotary wheel 5 is rotatably arranged inside one end of the screw lower part 1 close to the large rotary hole 4, a small rotary hole 501 is arranged on one side of the rotary wheel 5 close to the large rotary hole 4, a first rotary shaft 6 is fixed on the other side of the rotary wheel 5, a pinion 7 is fixed on one end of the first rotary shaft 6 far away from the rotary wheel 5, the small gear 7 is meshed with the large gear 8, and a second rotating shaft 9 is fixed on one side of the large gear 8, which is far away from the small gear 7;
two rectangular channels have been seted up on the roof of screw lower part 1, all install transmission shaft 11 through backup pad 12 rotation in the rectangular channel, install bevel gear 13 on the lateral wall of the transmission shaft 11 that is close to second pivot 9 one side, bevel gear 13 is installed equally to the one end that second pivot 9 kept away from gear wheel 8, two bevel gear 13 intermeshing, the chain groove has still been seted up on the roof of screw lower part 1, two transmission shaft 11 all extend to the chain inslot and install sprocket 14, two sprocket 14 pass through chain 15 transmissions, the threaded hole has been seted up to one side that the chain groove was kept away from to the rectangular channel, and the diapire at the roof of screw lower part 1 and screw upper portion 2 is seted up jointly to the screw hole, self-drilling self-tapping screw 10 is installed to the screw hole internal thread, self-drilling self-tapping screw 10's one end and the transmission shaft 11 sliding connection of homonymy.
All set up the ring channel that corresponds with swiveling wheel 5 on the diapire of the roof of screw lower part 1 and screw upper portion 2, all set up the gear groove that corresponds with pinion 7 and gear wheel 8 on the roof of screw lower part 1 and the diapire of screw upper portion 2, seted up rectangular channel and chain groove on the diapire of screw upper portion 2 equally, screw lower part 1 and screw upper portion 2 all seted up with set screw 3 assorted screw hole 16. In this embodiment, the number of the fixing screws 3 is two.
The bottom wall of the upper part 2 of the screw is provided with two positioning plates 17, and the top wall of the lower part 1 of the screw is provided with two positioning holes 18 matched with the positioning plates 17.
The cross section of the transmission shaft 11 extending to the end of the self-drilling and self-tapping screw 10 is square. The transmission shaft 11 and the support plate 12 are rotatably mounted through a limit bearing.
And bearings are mounted on the first rotating shaft 6 and the second rotating shaft 9, and are rotatably mounted with the lower screw part 1 through the bearings.
The working principle and the using process of the invention are as follows: the whole device can rotate by means of the matching of a large spanner and a large rotating hole 4, after the position of the device is determined, the rotating wheel 5 can rotate by means of the matching of a small spanner and a small rotating hole 501, the rotating wheel 5 drives a first rotating shaft 6 to rotate, at the moment, a small gear 7 is meshed with a large gear 8 and drives a second rotating shaft 9 and a bevel gear 13 at the end part of the second rotating shaft to rotate, the bevel gear 13 on the second rotating shaft 9 is meshed with the bevel gear 13 on one of the transmission shafts 11, so that the transmission shafts 11 and a chain wheel 14 at the end part of the transmission shafts are driven to rotate, and simultaneously, because the two transmission shafts 11 are in transmission matching with a chain 15 through the chain wheel 14, the two transmission shafts 11 can simultaneously rotate, and when the transmission shafts 11 rotate, the self-drilling and self-tapping screws 10 at the same side can be respectively driven to rotate, the self-drilling and self-tapping screws 10 are in threaded matching with threads arranged in the lower parts 1 of the screws, so that bolt holes can rotatably and stretch out and out in the bolt holes simultaneously, the self-drilling tapping screw 10 may then extend beyond the outer surface of the screw lower part 1 and the screw upper part 2 (i.e. the outer surface of the entire device).
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 as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (7)
1. A built-in lock pin type lumbosacral vertebral axial fusion internal fixation device comprises a screw lower part (1) and a screw upper part (2) which are spliced with each other, and is characterized in that the screw lower part (1) and the screw upper part (2) are detachably mounted through a fixing screw (3), threads are jointly arranged on the outer surfaces of the screw lower part (1) and the screw upper part (2), one ends of the screw lower part (1) and the screw upper part (2) are pointed, the other ends of the screw lower part and the screw upper part are rotating ends, a large rotating hole (4) is jointly arranged at the rotating ends of the screw lower part (1) and the screw upper part (2), a rotating wheel (5) is arranged in the screw lower part (1) in a rotating mode near one end of the large rotating hole (4), a small rotating hole (501) is arranged on one side of the rotating wheel (5) near the large rotating hole (4), and a first rotating shaft (6) is fixed on the other side of the rotating wheel (5), a small gear (7) is fixed at one end, far away from the rotating wheel (5), of the first rotating shaft (6), the small gear (7) is meshed with a large gear (8), and a second rotating shaft (9) is fixed on one side, far away from the small gear (7), of the large gear (8);
the improved self-drilling and self-tapping screw is characterized in that two rectangular grooves are formed in the top wall of the lower portion (1) of the screw, a transmission shaft (11) is rotatably mounted in each rectangular groove through a supporting plate (12), a bevel gear (13) is mounted on the side wall of the transmission shaft (11) close to one side of a second rotating shaft (9), the bevel gear (13) is mounted at one end, away from a gear wheel (8), of the second rotating shaft (9) and is meshed with the bevel gear (13), a chain groove is further formed in the top wall of the lower portion (1) of the screw, the transmission shaft (11) extends into the chain groove and is provided with a chain wheel (14), the chain wheel (14) transmits through a chain (15), a threaded hole is formed in one side, away from the chain groove, of the rectangular groove is formed in the top wall of the lower portion (1) of the screw and the bottom wall of the upper portion (2) of the screw, and a self-drilling and self-tapping screw (10) is mounted in the threaded hole, one end of the self-drilling and self-tapping screw (10) is connected with the transmission shaft (11) on the same side in a sliding manner;
all set up the ring channel that corresponds with swiveling wheel (5) on the roof of screw lower part (1) and the diapire of screw upper portion (2), all set up the gear groove that corresponds with pinion (7) and gear wheel (8) on the roof of screw lower part (1) and the diapire of screw upper portion (2), rectangular channel and chain groove have equally been seted up on the diapire of screw upper portion (2), screw lower part (1) and screw upper portion (2) all seted up with set screw (3) assorted screw hole (16).
2. The internal fixation device for the axial fusion of the lumbosacral vertebrae with built-in lock pin according to claim 1, wherein the bottom wall of the upper screw part (2) is provided with a positioning plate (17), and the top wall of the lower screw part (1) is provided with a positioning hole (18) matched with the positioning plate (17).
3. The internal fixation device for lumbosacral vertebral axial fusion of the built-in lock pin type according to claim 1, characterized in that the number of the fixation screws (3) is two.
4. The internal fixation device for lumbosacral vertebrae axial fusion of the built-in lock pin type according to claim 2, wherein the number of the positioning plates (17) is two.
5. The internal fixation device for lumbosacral vertebrae axial fusion of the built-in lock pin type according to claim 1, wherein the cross section of the transmission shaft (11) extending to the end from the inside of the self-drilling and tapping screw (10) is square.
6. A built-in lock pin type lumbosacral vertebrae axial fusion internal fixation device according to claim 1 or 5, characterized in that the transmission shaft (11) and the support plate (12) are rotatably mounted through limit bearings.
7. The internal fixation device for lumbosacral vertebrae axial fusion with built-in lock pin according to claim 1, wherein the first and second rotation shafts (6, 9) are each mounted with a bearing and rotatably mounted with the screw lower portion (1) through the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011148357.6A CN112155703B (en) | 2020-10-23 | 2020-10-23 | Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011148357.6A CN112155703B (en) | 2020-10-23 | 2020-10-23 | Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112155703A CN112155703A (en) | 2021-01-01 |
| CN112155703B true CN112155703B (en) | 2022-09-02 |
Family
ID=73866133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011148357.6A Active CN112155703B (en) | 2020-10-23 | 2020-10-23 | Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112155703B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104173099A (en) * | 2014-08-29 | 2014-12-03 | 南华大学 | Locking screw of minimally invasive lumbosacral vertebrae locking axial fusion internal fixation system |
| CN204379491U (en) * | 2014-11-18 | 2015-06-10 | 吴爱悯 | A kind of lumbosacral spine axially merges inner fixing device |
| CN105250056A (en) * | 2015-11-26 | 2016-01-20 | 南华大学 | Internal fixing system for minimally invasive lumbosacral vertebrae one-way axial fusion with spine |
| CN106388981A (en) * | 2016-10-24 | 2017-02-15 | 闻泰医疗科技（上海）有限公司 | Lumbar interbody fusion cage |
| CN109700515A (en) * | 2019-01-24 | 2019-05-03 | 陈志伟 | A kind of anti-rotation hollow screw |
| CN110368146A (en) * | 2019-07-12 | 2019-10-25 | 浙江科惠医疗器械股份有限公司 | A kind of rotary opening formula Invasive lumbar fusion device |
| CN209713095U (en) * | 2019-01-24 | 2019-12-03 | 陈志伟 | A kind of anti-rotation hollow screw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7846188B2 (en) * | 2005-04-12 | 2010-12-07 | Moskowitz Nathan C | Bi-directional fixating transvertebral body screws, zero-profile horizontal intervertebral miniplates, total intervertebral body fusion devices, and posterior motion-calibrating interarticulating joint stapling device for spinal fusion |
-
2020
- 2020-10-23 CN CN202011148357.6A patent/CN112155703B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104173099A (en) * | 2014-08-29 | 2014-12-03 | 南华大学 | Locking screw of minimally invasive lumbosacral vertebrae locking axial fusion internal fixation system |
| CN204379491U (en) * | 2014-11-18 | 2015-06-10 | 吴爱悯 | A kind of lumbosacral spine axially merges inner fixing device |
| CN105250056A (en) * | 2015-11-26 | 2016-01-20 | 南华大学 | Internal fixing system for minimally invasive lumbosacral vertebrae one-way axial fusion with spine |
| CN106388981A (en) * | 2016-10-24 | 2017-02-15 | 闻泰医疗科技（上海）有限公司 | Lumbar interbody fusion cage |
| CN109700515A (en) * | 2019-01-24 | 2019-05-03 | 陈志伟 | A kind of anti-rotation hollow screw |
| CN209713095U (en) * | 2019-01-24 | 2019-12-03 | 陈志伟 | A kind of anti-rotation hollow screw |
| CN110368146A (en) * | 2019-07-12 | 2019-10-25 | 浙江科惠医疗器械股份有限公司 | A kind of rotary opening formula Invasive lumbar fusion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112155703A (en) | 2021-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11134997B2 (en) | Bone fusion systen | |
| US10441318B2 (en) | Additively manufactured systems for low profile spinopelvic fixation and sacroiliac joint fusion for complex spinal deformities | |
| US7011658B2 (en) | Devices and methods for spinal compression and distraction | |
| US10531958B2 (en) | Implant assembly for the sacroiliac joint | |
| US20170095350A1 (en) | Intervertebral implant having extendable bone fixation members | |
| US20130325071A1 (en) | Aligning Vertebral Bodies | |
| CN110368146B (en) | Rotary expanding type interbody fusion cage | |
| US20110172674A1 (en) | System and Methods for Minimally Invasive Spine Surgery | |
| EP3826561A1 (en) | Multi-purpose screwdriver and method of use | |
| AU2016245772B2 (en) | Spinal stabilization device, system, and method of use | |
| CN112155703B (en) | Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins | |
| CN219021482U (en) | Pedicle screw placement instrument and pedicle screw system | |
| KR20060055640A (en) | Minimal invasive spine rod inserter | |
| CN214837642U (en) | Adjustable percutaneous bone cement nail props pressure | |
| CN205458985U (en) | Pedicle screw | |
| CN215899852U (en) | Hollow non-fused dynamic fixed pedicle screw and matched tool thereof | |
| CN219782704U (en) | Dynamic hybrid intramedullary fixation device for treating ankle fusion | |
| CN221180500U (en) | Vertebral body stretching pressurizer | |
| CN219271240U (en) | Interbody fusion cage | |
| CN217772483U (en) | Adjusting bracket for guider | |
| CN211512200U (en) | Adjustable artificial vertebral body | |
| CN214484592U (en) | Internal fixing system for thoracolumbar vertebral plate and pedicle isthmus | |
| CN113397682B (en) | Oblique lateral lumbar interbody fusion lateral reduction fixing system | |
| US20240189109A1 (en) | Sacroiliac joint fusion implants, insertion instruments, and methods | |
| CN213641138U (en) | Adjustable fixing plate system for lateral thoracolumbar vertebra |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |