CN217472165U - Front-opening type multi-direction adjustable spinal fusion cage - Google Patents
Front-opening type multi-direction adjustable spinal fusion cage Download PDFInfo
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- CN217472165U CN217472165U CN202221055408.5U CN202221055408U CN217472165U CN 217472165 U CN217472165 U CN 217472165U CN 202221055408 U CN202221055408 U CN 202221055408U CN 217472165 U CN217472165 U CN 217472165U
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Abstract
The utility model provides a front-opening type multi-direction adjustable spine fusion cage, belonging to the technical field of medical instruments. The utility model provides a pair of preceding multi-direction adjustable vertebra fusion cage of expanding, including connecting portion, expansion adjustment portion and adjusting block, four expansion adjustment portions set up respectively in four bights of the rear side of connecting portion, and the distance between two adjacent expansion adjustment portions reduces along the direction of keeping away from connecting portion gradually, forms the direction opening groove with adjusting block cooperation installation between two adjacent expansion adjustment portions, is provided with four regulation holes that are used for surgical instruments to pass on the connecting portion, and four regulation holes correspond the setting with four direction opening grooves respectively. The utility model provides a pair of preceding multi-direction adjustable vertebra fusion cage of expanding, it is internal with the device implantation patient, with the help of surgical instruments, promote the adjusting block in different position and remove to the front end, realize the support to vertebra a plurality of directions, it is simple and convenient swift to operate, fixed stable.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to preceding formula multi-direction adjustable vertebra fusion cage of strutting.
Background
Along with the change of living habits and the continuous deepening of population aging degree of people, the incidence rate of spine diseases in people of various ages is gradually increased, the age of patients is also reduced, in the treatment process of the spine diseases, a spine fusion operation is often used, a spine fusion device is implanted in the diseased part of the patient to achieve the purpose of function reconstruction, the common spine fusion device does not have the function of height adjustment, in the operation process, a doctor needs to use instruments such as a test model to carry out step-by-step measurement on the height of the intervertebral space of the patient, selects a proper spine fusion device, develops the spine fusion device with adjustable height in order to relieve the injury to the patient, but the distance between the front end and the rear end of the existing spine fusion device with adjustable height is synchronously adjusted, the height adjustment of the spine fusion device in a single direction cannot be carried out, and the spine fusion device after being implanted cannot be adjusted according to the actual conditions of the patient, the vertebra is supported in multiple directions, and the operation effect is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a preceding open-type multi-direction adjustable vertebra fuses ware aims at solving height-adjustable's vertebra fuses ware can't carry out the height adjustment of single direction, can't carry out the problem that multi-direction supported to vertebra.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an anterior distraction, multidirectional adjustable spinal fusion cage comprising: the expansion adjusting device comprises a connecting part, expansion adjusting parts and an adjusting slide block, wherein the four expansion adjusting parts are respectively arranged at four corners of the rear side of the connecting part, the distance between every two adjacent expansion adjusting parts is gradually reduced along the direction away from the connecting part, a guide notch matched with the adjusting slide block is formed between every two adjacent expansion adjusting parts, four adjusting holes for surgical instruments to penetrate through are formed in the connecting part, and the four adjusting holes are respectively arranged corresponding to the four guide notches.
In a possible implementation manner, the opposite side surfaces of two adjacent expansion adjusting parts are provided with first anti-withdrawal sawteeth.
In a possible implementation manner, the end face of the adjusting slider, which is in contact with the expansion adjusting portion, is provided with second anti-back sawteeth matched with the first anti-back sawteeth.
In a possible implementation manner, a sliding column is arranged on an end surface of the adjusting slider, which is in contact with the expansion adjusting portion, the length direction of the sliding column is consistent with the movement direction of the adjusting slider, and a sliding groove matched with the sliding column is arranged on the expansion adjusting portion.
In one possible implementation, the outer surface of the connecting portion and the outer surface of the expansion adjusting portion are both provided with anti-slip structures.
In a possible realization, the connection part is centrally provided with a threaded instrument hole therethrough.
The utility model provides a pair of preceding expanding multi-direction adjustable vertebra fuses ware's beneficial effect lies in:
compared with the prior art, the device comprises a connecting part, expansion adjusting parts and an adjusting slide block, wherein four expansion adjusting parts are arranged on the rear end face of the connecting part, the expansion adjusting parts have certain elasticity and are respectively arranged at four corners of the connecting part, the adjusting slide block is arranged in a guide notch between two adjacent expansion adjusting parts, the distances between the opposite side faces of the four expansion adjusting parts are gradually increased along with the distance from the connecting part, a surgical instrument passes through an adjusting hole arranged on the connecting part and abuts against the adjusting slide block, the adjusting slide block is gradually far away from the connecting part under the action of the surgical instrument, the distance between the expansion adjusting parts is gradually expanded, the adjustment of the height of the device is realized, the adaptability of the device in use is increased, the device can adapt to the height of intervertebral spaces with different physiological structures, the vertebra on the upper side and the lower side of the device can be pressurized, the support on the front end of the vertebra is enhanced, and the contact area with the vertebra is increased, the vertebral body is more stable, the damage to the patient is reduced, the operation time is shortened, and the operation difficulty is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a front-expanding multi-direction adjustable spinal fusion cage according to an embodiment of the present invention;
fig. 2 is a schematic front view of a connecting portion and an expansion adjusting portion adopted in the embodiment of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic structural diagram of an adjusting block according to an embodiment of the present invention.
In the figure: 1. a connecting portion; 2. an expansion adjustment section; 3. adjusting the slide block; 4. an adjustment hole; 5. a first anti-back-out serration; 6. a second anti-back-off sawtooth; 7. a sliding post; 8. a sliding groove; 9. an anti-slip structure; 10. a threaded instrument hole.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, a specific embodiment of a front-opening type multi-direction adjustable spinal fusion cage according to the present invention is described, which includes: connecting portion 1, inflation regulating part 2 and adjusting block 3, four inflation regulating part 2 set up respectively in four bights of the rear side of connecting portion 1, the distance between two adjacent inflation regulating part 2 reduces along the direction of keeping away from connecting portion 1 gradually, form the direction opening groove of installing with adjusting block 3 cooperation between two adjacent inflation regulating part 2, be provided with four regulation holes 4 that are used for surgical instruments to pass on the connecting portion 1, four regulation holes 4 correspond the setting with four direction opening grooves respectively.
Compared with the prior art, the utility model provides a front-expanding multi-direction adjustable spine fusion cage, which comprises a connecting part 1, expansion adjusting parts 2 and an adjusting slide block 3, wherein the rear end face of the connecting part 1 is provided with four expansion adjusting parts 2 which are respectively arranged at four corners of the connecting part 1, the expansion adjusting parts 2 have certain elasticity, the adjusting slide block 3 is arranged in a guide notch between two adjacent expansion adjusting parts 2, the distance between the opposite side faces of the four expansion adjusting parts 2 is gradually increased along with the distance from the connecting part 1, a surgical instrument passes through an adjusting hole 4 arranged at the connecting part 1 and is propped against the adjusting slide block 3, the adjusting slide block 3 is gradually far away from the connecting part 1 under the action of the surgical instrument, the distance between the expansion adjusting parts 2 is gradually expanded, the adjustment of the height of the device is realized, the adaptability of the device is increased, the device can adapt to the height of intervertebral spaces with different physiological structures, the device can pressurize the vertebra at the upper side and the lower side of the device, strengthen the support to the front end of the vertebra, increase the contact area with the vertebra, enable the vertebra to be more stable, reduce the injury to patients, shorten the operation time and reduce the operation difficulty.
Specifically, please refer to fig. 1 to 4, which includes a connecting portion 1, expansion adjusting portions 2 and an adjusting slider 3, wherein four expansion adjusting portions 2 are disposed on a rear end surface of the connecting portion 1, the expansion adjusting portions 2 are implanted between vertebrae as implantation ends and are respectively disposed at four corners of the connecting portion 1, the adjusting slider 3 is disposed in a guide notch between two adjacent expansion adjusting portions 2, a distance between opposite side surfaces of the four expansion adjusting portions 2 gradually increases as the adjusting slider is away from the connecting portion 1, a surgical instrument passes through an adjusting hole 4 disposed in the connecting portion 1 and abuts against the adjusting slider 3, the adjusting slider 3 gradually moves away from the connecting portion 1 under the action of the surgical instrument to gradually expand the distance between the expansion adjusting portions 2, so as to achieve adjustment of heights of the device in multiple directions, increase adaptability of the device for use, and enable the device to adapt to heights of intervertebral spaces of different physiological structures, reduce the damage to the patient, shorten the operation time and reduce the operation difficulty.
As a specific embodiment of the front-expanding type multi-direction adjustable spinal fusion cage of the present invention, please refer to fig. 1 to 3, the side surfaces of two adjacent expansion adjustment portions 2 opposite to each other are provided with first anti-receding saw teeth 5.
Specifically, referring to fig. 1 to 3, the side surface of the expansion adjustment portion 2 opposite to the side surface of the expansion adjustment portion 2 close to the adjustment slider 3 is provided with a first anti-back serration 5, so as to prevent the adjustment slider 3 from sliding during subsequent use of the device and affecting the stability of fixation.
As a specific embodiment of the front-opening multi-direction adjustable spinal fusion cage of the present invention, please refer to fig. 1 and 4, the end surface of the adjusting slider 3 contacting the expansion adjusting portion 2 is provided with the first anti-moving sawtooth 5 and the second anti-moving sawtooth 6.
Specifically, referring to fig. 1 and 4, the adjusting slider 3 is provided with a second anti-withdrawal sawtooth 6, the first anti-withdrawal sawtooth 5 is matched with the second anti-withdrawal sawtooth 6, the second anti-withdrawal sawtooth 6 is arranged on the end face of the adjusting slider 3 contacting with the expansion adjusting part 2, the adjusting slider 3 can move in the direction away from the connecting part 1 under the pushing of the surgical instrument, and the device is prevented from sliding due to the sliding of the adjusting slider 3 in the subsequent use process to affect the fixing stability.
As a specific embodiment of the front-opening multi-direction adjustable spinal fusion cage provided by the present invention, please refer to fig. 1 to 4, a sliding column 7 is disposed on the end surface of the adjusting slider 3 contacting the expansion adjusting portion 2, the length direction of the sliding column 7 is consistent with the moving direction of the adjusting slider 3, and a sliding groove 8 matched with the sliding column 7 is disposed on the expansion adjusting portion 2.
Specifically, referring to fig. 1 to 4, the adjusting slider 3 is provided with a sliding column 7, the length direction of the sliding column 7 is the same as the moving direction of the adjusting slider 3, the expansion adjusting portion 2 is provided with a sliding groove 8 along the length direction, and the sliding column 7 can move in the sliding groove 8, so that the stability of the device is increased, and the adjusting slider 3 is prevented from falling off from the space between the expansion adjusting portions 2.
As a specific embodiment of the front-opening type multi-direction adjustable spinal fusion cage of the present invention, referring to fig. 1, the outer surface of the connecting portion 1 and the outer surface of the expansion adjusting portion 2 are both provided with anti-slip structures 9.
Specifically, referring to fig. 1, the outer surface of the connecting portion 1 contacting with the vertebra, that is, the upper end surface and the lower end surface of the connecting portion 1 are both provided with the anti-slip structure 9, and the outer side surface of the expansion adjusting portion 2 obtained by extending the upper end surface and the lower end surface of the connecting portion 1 is also provided with the anti-slip structure 9, so that the device is prevented from slipping out in the using process, and the stability of the device is increased.
As a specific embodiment of the front-opening type multi-direction adjustable spinal fusion cage of the present invention, please refer to fig. 1 to 3, a threaded instrument hole 10 is provided at the center of the connecting portion 1.
Specifically, referring to fig. 1 to 3, a threaded instrument hole 10 is formed in the center of the connecting portion 1, so that the surgical instrument can be conveniently fixed, and the stability of the device in use is improved.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. An anterior distraction-type multi-directionally adjustable spinal fusion cage, comprising: the expansion adjusting part comprises a connecting part, expansion adjusting parts and adjusting sliders, wherein the four expansion adjusting parts are arranged at four corners of the rear side of the connecting part respectively, the distance between every two adjacent expansion adjusting parts is gradually reduced along the direction away from the connecting part, guide slots matched with the adjusting sliders are formed between every two adjacent expansion adjusting parts, four adjusting holes for surgical instruments to pass through are formed in the connecting part, and the four adjusting holes are arranged corresponding to the four guide slots respectively.
2. The distractor of claim 1, wherein adjacent ones of said expansion adjustment portions have first anti-backout serrations disposed on opposite sides thereof.
3. The distractor of claim 2, wherein the end surface of the adjusting slider in contact with the expansion adjustment portion is provided with second anti-back serrations matching the first anti-back serrations.
4. The front expanding type multidirectional adjustable spinal fusion cage as claimed in claim 1, wherein a sliding column is provided on an end surface of the adjusting slider contacting the expansion adjusting portion, a length direction of the sliding column is consistent with a moving direction of the adjusting slider, and a sliding groove matched with the sliding column is provided on the expansion adjusting portion.
5. The distractor of claim 1, wherein the outer surface of the connecting portion and the outer surface of the expansion adjustment portion are provided with anti-slip structures.
6. The distractor of claim 1, wherein the connecting portion has a threaded instrument hole extending therethrough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221055408.5U CN217472165U (en) | 2022-05-05 | 2022-05-05 | Front-opening type multi-direction adjustable spinal fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221055408.5U CN217472165U (en) | 2022-05-05 | 2022-05-05 | Front-opening type multi-direction adjustable spinal fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217472165U true CN217472165U (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221055408.5U Active CN217472165U (en) | 2022-05-05 | 2022-05-05 | Front-opening type multi-direction adjustable spinal fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217472165U (en) |
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2022
- 2022-05-05 CN CN202221055408.5U patent/CN217472165U/en active Active
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