CN204121156U - A kind ofly be applied to the fixing screw of Jower tibiofibular joint and screwdriver - Google Patents
A kind ofly be applied to the fixing screw of Jower tibiofibular joint and screwdriver Download PDFInfo
- Publication number
- CN204121156U CN204121156U CN201420580592.4U CN201420580592U CN204121156U CN 204121156 U CN204121156 U CN 204121156U CN 201420580592 U CN201420580592 U CN 201420580592U CN 204121156 U CN204121156 U CN 204121156U
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- screw
- screwdriver
- coat
- nail seat
- fixing
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Abstract
This utility model relates to medical apparatus and instruments auxiliary treatment field, is specifically to be a kind ofly applied to the fixing screw of Jower tibiofibular joint and screwdriver.Nail seat is fixedly connected with screw; Described screw is that hollow has externally threaded structure, once there is broken nail situation, can locate broken nail position, be combined trepan and taken out by broken nail by hollow position; In the middle part of described screw, internal layer is provided with the back-up coat of annular; Described back-up coat internal diameter is 0.5 ~ 1mm; Described back-up coat is respectively titanium alloy layer, alloy steel layer, zinc coat from inside to outside; Described nail seat has the female thread wire inversion contrary with screw thread rotation direction.Adopt the bolt structure of hollow and back-up coat, meet the function of reinforcing dog screw after screw and broken nail simultaneously, female thread wire inversion and bayonet socket is had in nail seat, use supporting have externally threaded screwdriver can solve take out screw time stripped thread problem, reduce the workload of medical worker, avoid bringing unnecessary misery to patient.
Description
Technical field
This utility model relates to medical apparatus and instruments auxiliary treatment field, is specifically to be a kind ofly applied to the fixing screw of Jower tibiofibular joint and screwdriver.
Background technology
Syndesmosis forward part is fractured from normal adjoint distal fibular, shin calf combines fracture and tibia anterior tubercle avulsion fracture occurs simultaneously, causes ankle joint instability after damage.The fracture of fibula person with Syndesmosis diastasis, the reduction therapy of fibula is very important.According to different classification of fracture, correlation method to be adopted.As distal fibular spiral fracture, then fix with two pieces of screws, screw should be interior square forward from rear foreign side, distally proximally; Shape as horizontal in fibula hypomere or short oblique fracture, can adopt Intramedullary nailing, to guarantee that fibula is stablized, keeps syndesmosis to reset, in order to avoid screw extraction and protection ankle joint and fibula physiological function, within 8 weeks after surgery, should take out the screw at Tibiofibular joint place.
And Jower tibiofibular joint is jointly made up of tibiofibula far-end and Inferior tibiofibular joint ligament, after Inferior tibiofibular joint ligament rapture, being separated appears in Jower tibiofibular joint.Be screwed clinically, Inferior tibiofibular joint ligament is healed under complete resting state.Cause the reason one of broken nail to be bear a heavy burden too early, Inferior tibiofibular joint ligament does not heal completely, and stress concentrates on screw, can cause screw extraction; Two is that screw taking-up is too late, this factor cannot be avoided sometimes because healing time comparatively the ligament time long, too early removable screw can cause secondary to be fractured, so the early treatment of Inferior tibiofibular joint ligament is relatively easy, and the complication of later stage screw extraction becomes the difficult point of orthopaedics therapy.Meanwhile, the very easily stripped thread when taking-up screw, needs two people just can take out with joint efforts, and brings unnecessary misery to patient.
Utility model content
This utility model is applied to the fixing screw of Jower tibiofibular joint and screwdriver by providing a kind of, adopt the bolt structure of hollow and machined layer, meet the function of reinforcing dog screw after screw and broken nail simultaneously, female thread wire inversion and bayonet socket is had in nail seat, use supporting have externally threaded screwdriver can solve take out screw time stripped thread problem, reduce the workload of medical worker, avoid bringing unnecessary misery to patient.
This utility model for achieving the above object, provides a kind of and is applied to the fixing screw of Jower tibiofibular joint, comprise screw, nail seat; Described nail seat is fixedly connected with screw; Described screw is that hollow has externally threaded structure, after generation broken nail, can lock the position of broken nail, be convenient to broken nail to take out according to hollow hole; In the middle part of described screw, internal layer is provided with the back-up coat of annular; Described back-up coat internal diameter is 0.5 ~ 1mm; Described back-up coat is respectively titanium alloy layer, alloy steel layer, zinc coat from inside to outside, more firmly, avoids the generation of broken nail situation; Described nail seat has the female thread wire inversion contrary with screw thread rotation direction, and when there is stripped thread situation, this female thread wire inversion of screwdriver, directly extracts screw.
Further, have the bayonet socket caved inward bottom described nail seat, convenient and supporting screwdriver clamping, better fixes screwdriver.
Further, described screw near puncture section half there is external screw thread, away from puncture section half without screw thread.
Further, the length of described screw is 42 ~ 48mm, makes screw can penetrate Jower tibiofibular joint bone, as there is screw extraction situation, takes out broken nail from puncturing end.
Further, described bayonet socket is interior hexagonal or Flos Mume stricture of vagina, facilitates screwdriver clamping.
Be applied to the screwdriver that Jower tibiofibular joint is fixing, described screwdriver comprises the outer screwdriver of hollow, and described outer screwdriver front end has the outer screwdriver external screw thread matched with the female thread wire inversion of nail seat; End to have with outer screwdriver external thread rotary to identical outer screwdriver female thread, is threaded onto in nail seat during use by screwdriver, when there is stripped thread, more conveniently to be taken out by screw.
Further, described screwdriver comprises interior screwdriver, and described interior screwdriver front end has the projection matched with the bayonet socket of described nail seat; End has screwdriver external screw thread in the outer screwdriver female thread of the outer screwdriver end of outer screwdriver matches, and is threaded with outer screwdriver, inside and outside screwdriver connect with the use of, also can connect for entirety when not using, preventing part from lacking.
The beneficial effects of the utility model are: the bolt structure 1, adopting hollow and back-up coat, meet the function of dog screw after reinforcing screw and broken nail simultaneously; 2, there are female thread wire inversion and bayonet socket in nail seat, use and supporting there is the problem that externally threaded screwdriver can solve stripped thread when taking out screw, reduce the workload of medical worker, avoid bringing unnecessary misery to patient; 3, increase screw length, run through whole Jower tibiofibular joint, puncturing end cover has the head of a nail, as there is screw extraction situation, takes out broken nail from puncturing end.
Accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of this utility model screw;
Fig. 2 is the structural representation of the outer screwdriver of this utility model and screw;
Fig. 3 is the structural representation of the inside and outside screwdriver of this utility model and screw;
Fig. 4 is the A face generalized section of this utility model screw;
Fig. 5 is the B face generalized section of this utility model screw;
In figure: screwdriver in 1 screw, 11 back-up coats, 2 heads of a nail, 21 bayonet sockets, 22 female thread wire inversions, 3,31 protruding, screwdriver external screw thread, 4 outer screwdrivers, 41 outer screwdriver external screw threads in 32.
Detailed description of the invention
By the description carried out its exemplary embodiment below in conjunction with accompanying drawing, the above-mentioned feature and advantage of this utility model will become apparent and easy understand.
Embodiment 1:
Be applied to the screw that Jower tibiofibular joint is fixing, comprise screw 1, nail seat 2; Described nail seat 2 is fixedly connected with screw 1; Described screw 1 is externally threaded structure for hollow has, and after generation broken nail, can lock the position of broken nail, be convenient to broken nail to take out according to hollow hole; In the middle part of described screw 1, internal layer is provided with the back-up coat 11 of annular; Described back-up coat 11 internal diameter is 0.8mm; Described back-up coat 11 is respectively titanium alloy layer, alloy steel layer, zinc coat from inside to outside, more firmly, avoids the generation of broken nail situation; Described nail seat 2 has the female thread wire inversion 22 contrary with screw 1 thread rotary orientation, and when there is stripped thread situation, this female thread wire inversion 22 of screwdriver, directly extracts screw.
Have the bayonet socket 21 caved inward bottom described nail seat 2, convenient and supporting screwdriver clamping, better fixes screwdriver.
Described screw 1 has external screw thread near the half of puncture section, away from the half of puncture section without screw thread.
The length of described screw 1 is 45mm, makes screw can penetrate Jower tibiofibular joint bone, as there is screw extraction situation, takes out broken nail from puncturing end.
Described bayonet socket 21 is interior hexagonal or Flos Mume stricture of vagina, facilitates screwdriver clamping.
Be applied to the screwdriver that Jower tibiofibular joint is fixing, described screwdriver comprises the outer screwdriver 4 of hollow, and described outer screwdriver 4 front end has the outer screwdriver external screw thread 41 matched with the female thread wire inversion 22 of nail seat 2; End has the outer screwdriver female thread identical with outer screwdriver external screw thread 41 rotation direction, is threaded onto in nail seat during use by screwdriver, when there is stripped thread, more conveniently to be taken out by screw.
Described screwdriver also comprises interior screwdriver 3, and described interior screwdriver 3 front end has the projection 31 matched with the bayonet socket 21 of described nail seat 2; End has screwdriver external screw thread 32 in the outer screwdriver female thread of outer screwdriver 4 end of outer screwdriver matches, and is threaded with outer screwdriver 4, while fixing inside and outside screwdriver, also can connect for entirety, preventing part from lacking when not using.
Below this utility model is described in detail, the above, be only the preferred embodiment of this utility model, when not limiting the scope of the present invention, namely allly do impartial change according to the application's scope and modify, all should still belong in this utility model covering scope.
Claims (7)
1. be applied to the screw that Jower tibiofibular joint is fixing, it is characterized in that: comprise screw (1), nail seat (2); Described nail seat (2) is fixedly connected with screw (1); Described screw (1) is externally threaded structure for hollow has; Described screw (1) middle part internal layer is provided with the back-up coat (11) of annular; Described back-up coat (11) internal diameter is 0.5 ~ 1mm; Described back-up coat (11) is respectively titanium alloy layer, alloy steel layer, zinc coat from inside to outside; Described nail seat (2) has the female thread wire inversion (22) contrary with screw (1) thread rotary orientation.
2. be applied to the screw that Jower tibiofibular joint is fixing as claimed in claim 1, it is characterized in that: described nail seat (2) bottom has the bayonet socket (21) caved inward.
3. be applied to the screw that Jower tibiofibular joint is fixing as claimed in claim 1 or 2, it is characterized in that: described screw (1) has external screw thread near the half of puncture section, away from the half of puncture section without screw thread.
4. be applied to the screw that Jower tibiofibular joint is fixing as claimed in claim 1 or 2, it is characterized in that: the length of described screw (1) is 42 ~ 48mm.
5. be applied to the screw that Jower tibiofibular joint is fixing as claimed in claim 1 or 2, it is characterized in that: described bayonet socket (21) is interior hexagonal or Flos Mume stricture of vagina.
6. one kind is applied to the fixing screwdriver of Jower tibiofibular joint, it is characterized in that: described screwdriver comprises the outer screwdriver (4) of hollow, described outer screwdriver (4) front end has the outer screwdriver external screw thread (41) matched with the female thread wire inversion (22) of nail seat (2); End has the outer screwdriver female thread identical with outer screwdriver external screw thread (41) rotation direction.
7. be applied to the screwdriver that Jower tibiofibular joint is fixing as claimed in claim 6, it is characterized in that: described screwdriver comprises interior screwdriver (3), described interior screwdriver (3) front end has the projection (31) matched with the bayonet socket of described nail seat (2) (21); The interior screwdriver external screw thread (32) that the outer screwdriver female thread that end has screwdriver (4) end outside outer screwdriver matches, is threaded with outer screwdriver (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420580592.4U CN204121156U (en) | 2014-10-09 | 2014-10-09 | A kind ofly be applied to the fixing screw of Jower tibiofibular joint and screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420580592.4U CN204121156U (en) | 2014-10-09 | 2014-10-09 | A kind ofly be applied to the fixing screw of Jower tibiofibular joint and screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204121156U true CN204121156U (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420580592.4U Expired - Fee Related CN204121156U (en) | 2014-10-09 | 2014-10-09 | A kind ofly be applied to the fixing screw of Jower tibiofibular joint and screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204121156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055049A (en) * | 2015-09-21 | 2015-11-18 | 中南大学湘雅医院 | Endoprosthesis for reestablishment of knee joint cruciate ligaments under full arthroscope |
-
2014
- 2014-10-09 CN CN201420580592.4U patent/CN204121156U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055049A (en) * | 2015-09-21 | 2015-11-18 | 中南大学湘雅医院 | Endoprosthesis for reestablishment of knee joint cruciate ligaments under full arthroscope |
| CN105055049B (en) * | 2015-09-21 | 2017-04-12 | 中南大学湘雅医院 | Endoprosthesis for reestablishment of knee joint cruciate ligaments under full arthroscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20151009 |
|
| EXPY | Termination of patent right or utility model |