CN214049229U - Special connecting screw for shoulder joint coracoid transplantation - Google Patents
Special connecting screw for shoulder joint coracoid transplantation Download PDFInfo
- Publication number
- CN214049229U CN214049229U CN202022629613.5U CN202022629613U CN214049229U CN 214049229 U CN214049229 U CN 214049229U CN 202022629613 U CN202022629613 U CN 202022629613U CN 214049229 U CN214049229 U CN 214049229U
- Authority
- CN
- China
- Prior art keywords
- screw
- nail
- reinforcing
- coracoid
- shoulder
- 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.)
- Expired - Fee Related
Links
- 210000000323 shoulder joint Anatomy 0.000 title claims abstract description 13
- 238000002054 transplantation Methods 0.000 title claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 29
- 230000000903 blocking effect Effects 0.000 claims description 6
- 241001653121 Glenoides Species 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 210000004095 humeral head Anatomy 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 210000001991 scapula Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 210000000281 joint capsule Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model discloses a special connecting screw for shoulder joint coracoid transplantation, which comprises a fixing screw consisting of a top cap and a screw body, wherein the top cap is provided with a screwing hole, the outer surface of the screw body is provided with an external thread, the special connecting screw also comprises a reinforcing screw, the surface of the reinforcing screw is provided with an external thread, the end part of the reinforcing screw is provided with a counter-locking hole, and the reinforcing screw is provided with a baffle cover; an inner screw hole is formed in the axis of the screw body and matched with the reinforcing screw threads. The utility model discloses internal screw hole that sets up at the nail of original staple to the internal thread that sets up on enhancement nail that has the external screw thread and the staple carries out the screw-thread fastening cooperation, strengthens the fixed connection relation between coracoid process and the shoulder glenoid, tightens mutually through mutual screw, not only holds easily when the operation and screws up the state, and can keep firm state for a long time after the operation, guarantees the operation quality, the utility model discloses simple structure, convenient operation to fastening quality to the operation has good effect.
Description
Technical Field
The utility model belongs to the technical field of the joint operation, a special connecting screw of shoulder joint coracoid transplantation operation of simple structure, convenient to use is related to.
Background
The unstable shoulder joint is a common disease, the surgical treatment of the unstable shoulder joint is rich and complex in content, and the unstable shoulder joint is the dislocation of the glenohumeral joint, namely, the humeral head slides out of the platform of the scapula, and the connection of the humeral head and the scapula is dislocated. The pathogenic causes are related to the anatomical and physiological features of shoulder joints, such as large humeral head, shallow and small glenoid cavity, loose joint capsule, weak tissues in the front and lower parts, large range of joint motion, external force, etc. According to different causes of disease, different treatment methods are adopted, such as minimally invasive arthroscopic surgery, bone grafting surgery, manual reduction and the like. The coracoid process transplantation displacement operation is a common method in bone grafting operation, and is characterized in that coracoid process cutting is fixed to the front edge of a glenoid, and research on coracoid process transplantation displacement technology shows that the coracoid process displacement operation not only can strengthen the glenoid, but also can play a suspension blocking role in combination with tendons, and the coracoid process displacement operation also becomes one of the most effective modes for treating unstable shoulder joints. When the coracoid process and the glenoid are fixed, the screws used for fixing the coracoid process and the glenoid can be gradually loosened in long-time movement, the operation effect is influenced, and unnecessary pain is brought to a patient after the operation. Therefore, the development of a special connecting screw for shoulder joint coracoid transplantation has very important significance.
Disclosure of Invention
The utility model aims to provide a special connecting screw of shoulder joint coracoid transplantation operation of simple structure, convenient to use.
The utility model aims at realizing the purpose, which comprises a fixing nail consisting of a top cap and a nail body, wherein the top cap is provided with a screwing hole, the outer surface of the nail body is provided with an external thread, the fixing nail also comprises a reinforcing nail, the surface of the reinforcing nail is provided with the external thread, the end part of the reinforcing nail is provided with a reverse locking hole, and the reinforcing nail is provided with a baffle cover; an inner screw hole is formed in the axis of the screw body and matched with the reinforcing screw threads.
The utility model discloses internal screw hole that sets up at the nail of original staple to the internal thread that sets up on enhancement nail that has the external screw thread and the staple carries out the screw-thread fastening cooperation, strengthens the fixed connection relation between coracoid and the shoulder glenoid, tightens mutually through mutual screw thread, not only holds easily when the operation and screws up the state, and can keep firm state for a long time after the operation, guarantees the operation quality, and the enhancement nail rear end sets up and keeps off the lid, strengthens keeping off the guard action to coracoid, the utility model has the advantages of being simple in overall structure, convenient operation to fastening quality to the operation has good effect.
Drawings
FIG. 1 is a view of the structure of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a block diagram of another embodiment of the present invention;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is a block diagram of yet another embodiment of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5;
in the figure: 1-top cap, 11-screwing hole, 2-nail body, 3-reinforcing nail, 31-counter locking hole and 4-baffle cover.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, which are not intended to limit the present invention in any way, and any modifications or improvements based on the teachings of the present invention are within the scope of the present invention.
As shown in fig. 1-6, the utility model comprises a fixing nail composed of a top cap 1 and a nail body 2, wherein the top cap 1 is provided with a screwing hole 11, the outer surface of the nail body 2 is provided with an external thread, the fixing nail further comprises a reinforcing nail 3, the surface of the reinforcing nail 3 is provided with an external thread, the end part of the reinforcing nail 3 is provided with a reverse locking hole 31, and the reinforcing nail is provided with a blocking cover 4; an inner screw hole is arranged at the axis of the nail body 2 and is in threaded fit with the reinforcing nail 3.
The baffle cover 4 and the reinforcing nail 3 are split, the outer edge of the baffle cover 4 is set to be a regular polygon, and the number of the polygon edges is 4-6. The regular polygon is easy to set a special tool to screw the blocking cover.
Keep off lid 4 and strengthen nail 3 and set up to the integral type, keep off lid 4 and disc, disc keep off the lid and strengthen 3 tip parallel and level of nail, strengthen 3 tip centers of nail and set up anti-lockhole 31. The back locking hole is used for inserting a tool to carry out back locking with the fixing nail.
The nail body 2 is set to be a conical screw, and the diameter of the thick end of the conical screw is equal to that of the top cap 1.
The external thread of the nail body 2 is M5 or M6, and the internal thread is M2, M3 or M4.
The external thread of the reinforcing nail 3 is M2, M3 or M4.
The top cap 1 is arranged in a disc shape, and the diameter of the top cap is 7-10 mm.
The diameter of the outer edge of the blocking cover 4 is less than 10 mm.
The utility model discloses theory of operation and working process:
the utility model discloses set up the interior screw hole in the nail body 2 of original staple to the internal thread that sets up on enhancement nail 3 that has the external screw thread and the staple carries out the screw-thread fastening cooperation, strengthens the fixed connection relation between coracoid process and the shoulder glenoid, tightens mutually through mutual screw thread, not only holds easily when the operation and screws up the state, and can keep firm state for a long time after the operation, guarantees the operation quality, and the enhancement nail rear end sets up keeps off lid 4, strengthens keeping off the effect of protecting to coracoid process, the utility model has the advantages of simple overall structure, convenient operation to fastening quality to the operation has good effect.
During operation, a glenoid drill bit is placed through a glenosphere, a hole is drilled in the glenoid for placing the coracoid fixing nail 2, once the drill bit passes through the glenoid, the matching length of the fixing nail 2 and the reinforcing nail 3 is determined by using the scale on the glenoid drill bit, the drill bit is taken out, the fixing nail is implanted into the glenoid, the reinforcing nail 3 is implanted from the coracoid side, the fixing nail 2 and the reinforcing nail 3 are screwed and matched by using a tool, another pair of fixing nail 2 and reinforcing nail 3 are implanted in parallel by repeating the operation, a double-channel fixing state is formed, and the firm connection of the coracoid and the glenoid is ensured.
Claims (8)
1. A special connecting screw for shoulder joint coracoid transplantation comprises a fixing screw consisting of a top cap (1) and a screw body (2), wherein a screwing hole (11) is formed in the top cap (1), and an external thread is formed on the outer surface of the screw body (2), and is characterized in that: the reinforcing structure is characterized by further comprising a reinforcing nail (3), wherein an external thread is arranged on the surface of the reinforcing nail (3), a reverse locking hole (31) is formed in the end part of the reinforcing nail (3), and a blocking cover (4) is arranged on the reinforcing nail; an inner screw hole is formed in the axis of the nail body (2), and the inner screw hole is in threaded fit with the reinforcing nail (3).
2. The special connection screw for shoulder coracoid graft as claimed in claim 1, wherein: the baffle cover (4) and the reinforcing nail (3) are split, the outer edge of the baffle cover (4) is set to be a regular polygon, and the number of the polygon edges is 4-6.
3. The special connection screw for shoulder coracoid graft as claimed in claim 1, wherein: keep off lid (4) and strengthen nail (3) and set up to the integral type, keep off lid (4) and disc, disc keep off the lid and strengthen nail (3) tip parallel and level, strengthen nail (3) tip center and set up anti-lockhole (31).
4. The special connection screw for shoulder coracoid graft as claimed in claim 1, 2 or 3, wherein: the nail body (2) is set to be a conical screw, and the diameter of the thick end of the conical screw is equal to that of the top cap (1).
5. The special connection screw for shoulder coracoid graft as claimed in claim 1, 2 or 3, wherein: the external thread of the nail body (2) is M5 or M6, and the internal thread is M2, M3 or M4.
6. The special connection screw for shoulder coracoid graft as claimed in claim 1, 2 or 3, wherein: the external thread of the reinforcing nail (3) is M2, M3 or M4.
7. The special connection screw for shoulder coracoid graft as claimed in claim 1, 2 or 3, wherein: the top cap (1) is arranged in a disc shape, and the diameter of the top cap is 7-10 mm.
8. The special connection screw for shoulder coracoid graft as claimed in claim 1, 2 or 3, wherein: the diameter of the outer edge of the blocking cover (4) is less than 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022629613.5U CN214049229U (en) | 2020-11-13 | 2020-11-13 | Special connecting screw for shoulder joint coracoid transplantation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022629613.5U CN214049229U (en) | 2020-11-13 | 2020-11-13 | Special connecting screw for shoulder joint coracoid transplantation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214049229U true CN214049229U (en) | 2021-08-27 |
Family
ID=77402361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022629613.5U Expired - Fee Related CN214049229U (en) | 2020-11-13 | 2020-11-13 | Special connecting screw for shoulder joint coracoid transplantation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214049229U (en) |
-
2020
- 2020-11-13 CN CN202022629613.5U patent/CN214049229U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210827 |