CN205234607U - Kneecap nail hook fixing device - Google Patents
Kneecap nail hook fixing device Download PDFInfo
- Publication number
- CN205234607U CN205234607U CN201520980500.6U CN201520980500U CN205234607U CN 205234607 U CN205234607 U CN 205234607U CN 201520980500 U CN201520980500 U CN 201520980500U CN 205234607 U CN205234607 U CN 205234607U
- Authority
- CN
- China
- Prior art keywords
- kneecap
- fixing device
- model
- utility
- main board
- 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
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Abstract
The utility model provides a kneecap nail hook fixing device, relates to medical instrument device field, especially relates to the fixing device to kneecap anus or 13 fracture of distal end. By the preparation of medical nickel titanium memory alloy, including distal end arc claw hook, main part board and near -end locking hole arm. Whole fixing device closes with the dissection form shape on kneecap surface. The utility model discloses behind kneecap fracture piece anatomic reduction, through inserting the non - pass nodal section of kneecap anus with 3 claw hooks of fixing device distal end, with the attached kneecap surface covering fracture line of fixing device, then 4 directional locking screws of locking hole screw in in the near -end locks the hole arm. The utility model discloses the practicality is strong, and easy operation is fixed reliable.
Description
[technical field]
The utility model relates to area of medical devices, especially relates to the fixture of utmost point fracture under a kind of kneecap.
[background technology]
Known, kneecap forms knee joint and stretches knee device. Patellar fracture does not have good reset, easily causes patellofemoral joint traumatic arthritis impact to stretch knee function. Therefore, kneecap has displacement fracture, and operative reduction is fixedly necessary. The common inside-fixture of patellar fracture comprises steel wire circular ligate, tension band wiring, shape-remembering alloy claw etc. Fixedly there are broken needle, displacement and local soft tissue stimulation etc. in steel wire and tension band wiring, pain while causing thus knee joint movable, and then affect function; Shape-remembering alloy claw is fixing can overcome Kirschner wire defect, but existence causes because model selection is too little, kneecap near-end is fixed unreliable and de-pawl, model causes too greatly pawl branch to enter joint affects joint motion etc. Cause that patellar fracture common disease causes that quadriceps muscle of thigh shrinks and causes patellar transverse fracture because mostly being indirect violence, and the most commonly utmost point or lower 1/3 fracture under kneecap. For this class fracture, the fixed range that patella claw and tension band wiring relate to is excessive. Because both all need the structure of SPP quadriceps muscle of thigh tendon to carry out necessary peeling off; And in secondary, fixing taking-up performed the operation, and for appearing interior Kirschner wire or the pawl branch of near-end, needs again again to peel off, and may affect thus the result for the treatment of of patellar fracture.
[utility model content]
In order to overcome the deficiency in background technology, in conjunction with shape-remembering alloy claw and the fixing feature of the fixing locking nail of direction, the utility model discloses a kind of kneecap nail hook fixture of fracturing for the utmost point under kneecap or far-end 1/3.
In order to realize the object of described utility model, the utility model adopts following technical scheme: a kind of kneecap nail hook fixture, comprises far-end arc claw hook, main board, near-end lock hole arm, near-end locking screw, locking nail. Described arc claw hook is positioned at the far-end of main board, described main board attaches kneecap surface coverage fracture line, the near-end of described main board is provided with lock hole arm, and described near-end lock hole arm is provided with near-end locking screw, can screw in the lock screw of fixed-direction under backward in described near-end locking screw.
Far-end arc claw hook described in the utility model comprises three arc point hooks.
Near-end lock hole arm described in the utility model is for circular and be provided with four, is provided with the locking screw of a fixed-direction under backward on each near-end lock hole arm.
The material of fixture described in the utility model is medical Ultimum Ti.
Hole axle and the main board of near-end locking screw described in the utility model are slanted angle.
The angle of inclination of near-end locking screw hole axle described in the utility model and main board is 85 ~ 90 degree.
Owing to having adopted technique scheme, the utlity model has following beneficial effect: the utility model is after patellar fracture piece anatomical reduction, by the far-end arc claw hook of fixture is inserted to extremely non-articular surface under kneecap, fixture is attached to kneecap surface coverage fracture line to nearly section; Then implant lock screw in the proximal screw hole of fixture. So reach the reliable fixing of fracture end, allow knee joint early ambulant simultaneously.
A kind of kneecap nail hook fixture of fracturing for the utmost point under kneecap or far-end 1/3 described in the utility model, comprises the arc point hook of far-end, middle body and lock hole arm and the locking nail of near-end. This device is fixed on kneecap surface by far-end hook and near-end locking nail, meets tension band fixation principle, fixing reliable; Do not invade and quadriceps muscle of thigh tendon, allow knee joint early ambulant. The utility model is practical, simple to operate, fixing reliable.
[brief description of the drawings]
Fig. 1 is the perspective view of the utility model kneecap nail hook fixture.
Fig. 2 is the stereochemical structure side view of the utility model kneecap nail hook fixture.
In figure: 1, far-end arc claw hook; 2, main board; 3, near-end lock hole arm; 4, near-end locking screw; 5, locking nail.
[detailed description of the invention]
Explanation the utility model that can be detailed by the following examples, open the purpose of this utility model is intended to protect all technological improvements within the scope of the utility model.
A kind of kneecap nail hook fixture, comprises far-end arc claw hook 1, main board 2, near-end lock hole arm 3, near-end locking screw 4, locking nail 5; Described far-end arc claw hook 1 is positioned at the far-end of main board 2, described main board 2 attaches kneecap surface coverage fracture line, the near-end of described main board 2 is provided with near-end lock hole arm 3, in described near-end lock hole arm 3, be provided with the locking screw 4 of proximal direction under backward, in described near-end locking screw 4, lock screw 5 be installed.
Described far-end arc claw hook 1 comprises three arc point hooks.
Described near-end lock hole arm 3 is for circle and be provided with 4, is provided with a near-end locking screw 4 in each near-end lock hole arm 3.
The material of described fixture is Ultimum Ti.
After the reduction of the fracture, arc shaped hook 1, by inserting extremely non-articular surface under kneecap, attaches kneecap surface by main board 2 and crosses fracture line, screws in lock screw 5 by the near-end locking screw 4 in near-end lock hole arm 3.
Implement the kneecap nail hook fixture that the utmost point under a kind of kneecap described in the utility model or far-end 1/3 are fractured. In use, appear after fracture end reduction, towel clamp towel forceps is temporary fixed; First, select suitable fixture, three far-end arc claw hooks 1 are inserted to extremely non-articular surface under kneecap along kneecap far-end sclerotin; Secondly, main board 2 be close to kneecap surface and crossed fracture line; Finally screw in directional lock screw 5 by four near-end locking screws 4 in near-end lock hole arm 3, note avoiding screw to enter joint.
Claims (6)
1. a kneecap nail hook fixture, is characterized in that: comprise far-end arc claw hook (1), main board (2), near-end lock hole arm (3), near-end locking screw (4), lock screw (5); Described far-end arc claw hook (1) is positioned at the far-end of main board (2), described main board (2) attaches kneecap surface coverage fracture line, the near-end of described main board (2) is provided with near-end lock hole arm (3), in described near-end lock hole arm (3), be provided with near-end locking screw (4), in described near-end locking screw (4), lock screw (5) be installed.
2. kneecap nail hook fixture as claimed in claim 1, is characterized in that: described far-end arc claw hook (1) comprises three arc point hooks.
3. kneecap nail hook fixture as claimed in claim 1, is characterized in that: described near-end lock hole arm (3) is for circle and be provided with four, is provided with a near-end locking screw (4) in each near-end lock hole arm (3).
4. kneecap nail hook fixture as claimed in claim 1, is characterized in that: the material of described fixture is medical Ultimum Ti.
5. kneecap nail hook fixture as claimed in claim 1, is characterized in that: hole axle and the main board (2) of described near-end locking screw (4) are slanted angle.
6. kneecap nail hook fixture as claimed in claim 5, is characterized in that: the angle of inclination of described near-end locking screw (4) hole axle and main board (2) is 85～90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520980500.6U CN205234607U (en) | 2015-12-02 | 2015-12-02 | Kneecap nail hook fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520980500.6U CN205234607U (en) | 2015-12-02 | 2015-12-02 | Kneecap nail hook fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205234607U true CN205234607U (en) | 2016-05-18 |
Family
ID=55933697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520980500.6U Expired - Fee Related CN205234607U (en) | 2015-12-02 | 2015-12-02 | Kneecap nail hook fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205234607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107007339A (en) * | 2017-04-17 | 2017-08-04 | 中国人民解放军第二军医大学第二附属医院 | A kind of Facet Joints tension band fixation device |
-
2015
- 2015-12-02 CN CN201520980500.6U patent/CN205234607U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107007339A (en) * | 2017-04-17 | 2017-08-04 | 中国人民解放军第二军医大学第二附属医院 | A kind of Facet Joints tension band fixation device |
| CN107007339B (en) * | 2017-04-17 | 2020-01-03 | 中国人民解放军第二军医大学第二附属医院 | Lumbar zygapophysis joint tension band fixator |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161202 |