CN201692040U - Two-way pressing screw assembly - Google Patents
Two-way pressing screw assembly Download PDFInfo
- Publication number
- CN201692040U CN201692040U CN2010203019153U CN201020301915U CN201692040U CN 201692040 U CN201692040 U CN 201692040U CN 2010203019153 U CN2010203019153 U CN 2010203019153U CN 201020301915 U CN201020301915 U CN 201020301915U CN 201692040 U CN201692040 U CN 201692040U
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- China
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- screw
- nail
- long spiro
- lag bolt
- bolt
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Abstract
The utility model provides a two-way pressing screw assembly, which relates to a fixing instrument for treating bone fracture in positions such as the femur condyle part and the like. The two-way pressing screw assembly of the utility model comprises two parts: a long screw and a short screw bolt, wherein the tail end of the screw body of the long screw is provided with internal screw threads along a vertical shaft of the screw body of the long screw, the screw body of the short screw bolt is provided with external screw threads along a vertical shaft of the screw body of the short screw bolt, and the external screw threads arranged on the screw body of the short screw bolt are screwed in the internal screw threads of the screw body of the long screw. The tightness of the external screw threads on the screw body of the short screw bolt screwing in the internal screw threads of the screw body of the long screw is regulated, and the screw head of the long screw and the screw head of the short screw bolt can simultaneously exert pressure on the bone fracture end of the femur condyle part for passing and sheathing the two-way pressing screw assembly and the other part of the thighbone to realize the treatment effect of pressing fixation. The utility model solves the problem that the ordinary screw can not press the bone fracture end.
Description
Technical field
This utility model relates to that a kind of orthopaedics is fixing uses equipment, particularly relates to a kind of position fixation of fractures equipment such as femur condyle that is used for the treatment of.
Background technology
When treating the comminuted fracture at some position clinically at present, the plain screw of use can't effectively pressurize to fracture site, is difficult to that isolating fracture end is carried out ideal and resets.When particularly treating the femur condyle comminuted fracture, it is puzzlement operation doctor's a difficult problem that plain screw can't pressurize to the fracture of the femoral condyle broken ends of fractured bone always.
The utility model content
This utility model aims to provide a kind of two-way forcing screw assembly, and solving plain screw can't be to the fracture of the femoral condyle broken ends of fractured bone this difficult problem of pressurizeing.
The technical solution of the utility model is: two-way forcing screw assembly comprises long spiro nail and lag bolt two parts; The nail body tail end of long spiro nail has female thread along the long spiro nail nail body longitudinal axis, and the nail body of lag bolt has external screw thread along the lag bolt nail body longitudinal axis; Lag bolt nail external thread spiro fastening on one's body is in the female thread of long spiro nail nail body.Adjust lag bolt and follow closely the elasticity of external thread spiro fastening in long spiro nail nail body female thread on one's body, the ailhead of long spiro nail and the ailhead of lag bolt can be exerted pressure to the fracture of the femoral condyle broken ends of fractured bone that wears this two-way forcing screw assembly and another position of femur simultaneously, play the fixed therapeutical effect of pressurization.
Hexagonal counterbore in the ailhead upper edge long spiro nail nail body longitudinal axis of described long spiro nail has.Six side's screwdrivers lock the operation of long spiro nail in using in being convenient to perform the operation, and are easy to control the moment of locking, and safety is good.
Hexagonal counterbore in the ailhead upper edge lag bolt nail body longitudinal axis of described lag bolt has.Six side's screwdrivers lock the lag bolt operation in being convenient to use in the operation, are easy to control the moment of locking, and safety is good.
The nail body of described long spiro nail and ailhead have through hole along the long spiro nail nail body longitudinal axis.Be easy in operation the through hole of long spiro nail is inserted the Ke Shi guide pin that sets in advance, along the Ke Shi guide pin long spiro nail be screwed into fracture site quickly and accurately.
The nail body of described lag bolt and ailhead have through hole along the lag bolt nail body longitudinal axis.Be easy in operation the through hole of lag bolt is inserted the Ke Shi guide pin that sets in advance, along the Ke Shi guide pin lag bolt be screwed into long spiro nail quickly and accurately.
The nail body of described long spiro nail has external screw thread along self y direction.This long spiro nail can dependence itself external screw thread be fixed on fracture site.
The nail of described long spiro nail is set with pad on one's body.Pad can enlarge the pressurization area, reduces the pressure to fracture site, helps the recovery of patient's fracture site.
The two-way forcing screw assembly of this utility model adopts long spiro nail and the lag bolt screw togather mutually to realize two-way pressurization, and having solved plain screw can't be to position fracture sites such as femur condyle this medical skill difficult problem of pressurizeing.Because fracture site is effectively pressurizeed, realize strong internal fixation, for position fracture such as treatment femur condyle provide reliable technique to guarantee.The two-way forcing screw assembly of this utility model has significantly improved the anti-ability that cuts out.Isolating fracture end can be carried out ideal and reset, significantly reduce screw excision phenomenon.According to different classification of fracture, the two-way forcing screw assembly of this utility model can use separately, also can use in conjunction with various intramedullary pins.
Description of drawings
Fig. 1 is the perspective view of an embodiment of the two-way forcing screw assembly of this utility model.
Fig. 2 is the cross-sectional view of screw and bolt among Fig. 1 embodiment.
Fig. 3 is the application sketch map of Fig. 1 embodiment.
Fig. 4 is the perspective view of another embodiment of the two-way forcing screw assembly of this utility model.
Fig. 5 is the cross-sectional view of screw and bolt among Fig. 4 embodiment.
The specific embodiment
One, embodiment one
The structure of an embodiment of the two-way forcing screw assembly of this utility model, as depicted in figs. 1 and 2: it comprises long spiro nail 1, lag bolt 2 and pad 3.
During use, select suitable position and operative approach according to patient's fracture of the femoral condyle position, the exposure fracture of the femoral condyle broken ends of fractured bone also resets.Insert the Ke Shi guide pin earlier at fracture site, along the boring of Ke Shi guide pin, right elder generation is screwed into the long spiro nail 1 that has overlapped pad 3 along the Ke Shi guide pin, another pad 3 is set and is screwed into lag bolt 2 along the Ke Shi guide pin at the fracture end opposite side then.External screw thread 22 on the lag bolt 2 nail bodies 21 is screwed in the female thread 15 of long spiro nail 1 nail body 11, and the nail body 21 of lag bolt 2 can enter in the slot to make way 16 of long spiro nail 1 nail body 11 tail ends in case of necessity.After extracting the Ke Shi guide pin, external screw thread 22 is screwed on the elasticity in the female thread 15 on the long spiro nail 1 on the adjustment lag bolt 2, the ailhead 12 of long spiro nail 1 and the ailhead 23 of lag bolt 2 can be exerted pressure to the fracture of the femoral condyle broken ends of fractured bone that wears this two-way forcing screw assembly and another position of femur simultaneously, play the fixed therapeutical effect of pressurization.Please referring to Fig. 3.
Two, embodiment two
The structure of another embodiment of the two-way forcing screw assembly of this utility model, as shown in Figure 4 and Figure 5: it comprises long spiro nail 1 ', lag bolt 2 ' and pad 3 '.
Hexagonal counterbore 13 ' in ailhead 12 ' upper edge long spiro nail 1 ' the nail body 11 ' longitudinal axis of long spiro nail 1 ' has.The nail body 11 ' of long spiro nail 1 ' and ailhead 12 ' have through hole 14 ' along long spiro nail 1 ' the nail body 11 ' longitudinal axis.The nail body 11 ' tail end of long spiro nail 1 ' has female thread 15 ' and slot to make way 16 ' along self longitudinal axis.The nail body 11 ' of long spiro nail 1 ' has external screw thread 17 ' along self y direction.
The nail body 21 ' upper edge of lag bolt 2 ' self longitudinal axis has external screw thread 22 '; The nail body 21 ' of lag bolt 2 ' and ailhead 23 ' have through hole 24 ' along lag bolt 2 ' the nail body 21 ' longitudinal axis.Hexagonal counterbore 25 ' in ailhead 23 ' upper edge lag bolt 2 ' the nail body 21 ' longitudinal axis of lag bolt 2 ' has.
During use, select suitable position and operative approach according to patient's fracture of the femoral condyle position, the exposure fracture of the femoral condyle broken ends of fractured bone also resets.Insert earlier the Ke Shi guide pin at fracture site, along the boring of Ke Shi guide pin, so earlier be screwed into the long spiro nail 1 ' that has overlapped pad 3 ' earlier along the Ke Shi guide pin, the external screw thread 17 ' that long spiro nail 1 ' can dependence itself is fixed on fracture site.Another pad 3 ' is set and is screwed into lag bolt 2 ' along the Ke Shi guide pin at the fracture end opposite side then.External screw thread 22 ' on lag bolt 2 ' the nail body 21 ' is screwed in the female thread 15 ' of long spiro nail 1 ' nail body 11 ', and the nail body 21 ' of lag bolt 2 ' can enter in the slot to make way 16 ' of long spiro nail 1 ' nail body 11 ' tail end in case of necessity.After extracting the Ke Shi guide pin, adjustment lag bolt 2 ' is gone up external screw thread 22 ' and is screwed on the elasticity that long spiro nail 1 ' is gone up in the female thread 15 ', the ailhead 12 ' of long spiro nail 1 ' and the ailhead 23 ' of lag bolt 2 ' can be exerted pressure to the fracture of the femoral condyle broken ends of fractured bone that wears this two-way forcing screw assembly and another position of femur simultaneously, play the fixed therapeutical effect of pressurization.
The above only is this utility model preferred embodiment, does not limit the scope that this utility model is implemented with this, and the equivalence of doing according to the technical solution of the utility model and description changes and modification, all should belong to the scope that this utility model is contained.
Claims (7)
1. two-way forcing screw assembly is characterized in that: comprise long spiro nail and lag bolt two parts; The nail body tail end of long spiro nail has female thread along the long spiro nail nail body longitudinal axis, and the nail body of lag bolt has external screw thread along the lag bolt nail body longitudinal axis; Lag bolt nail external thread spiro fastening on one's body is in the female thread of long spiro nail nail body.
2. two-way forcing screw assembly according to claim 1 is characterized in that: hexagonal counterbore in the ailhead upper edge long spiro nail nail body longitudinal axis of described long spiro nail has.
3. two-way forcing screw assembly according to claim 1 is characterized in that: hexagonal counterbore in the ailhead upper edge lag bolt nail body longitudinal axis of described lag bolt has.
4. according to claim 1 or 2 or 3 described two-way forcing screw assemblies, it is characterized in that: the nail body of described long spiro nail and ailhead have through hole along the long spiro nail nail body longitudinal axis.
5. two-way forcing screw assembly according to claim 4 is characterized in that: the nail body of described lag bolt and ailhead have through hole along the lag bolt nail body longitudinal axis.
6. according to claim 1 or 2 or 3 described two-way forcing screw assemblies, it is characterized in that: the nail body of described long spiro nail has external screw thread along self y direction.
7. according to claim 1 or 2 or 3 described two-way forcing screw assemblies, it is characterized in that: the nail of described long spiro nail is set with pad on one's body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203019153U CN201692040U (en) | 2010-01-29 | 2010-01-29 | Two-way pressing screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203019153U CN201692040U (en) | 2010-01-29 | 2010-01-29 | Two-way pressing screw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201692040U true CN201692040U (en) | 2011-01-05 |
Family
ID=43393280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203019153U Expired - Lifetime CN201692040U (en) | 2010-01-29 | 2010-01-29 | Two-way pressing screw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201692040U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224289A (en) * | 2014-10-13 | 2014-12-24 | 张英泽 | Bidirectional forcing sleeve nail for restoration fixation |
| CN104644256A (en) * | 2015-03-13 | 2015-05-27 | 邱正奭 | Internal fixation hollow needle for patellar fracture |
| CN107714169A (en) * | 2017-11-10 | 2018-02-23 | 徐强 | A kind of reversely screw and steel plate Bidirectional locking system |
| CN113349908A (en) * | 2021-07-09 | 2021-09-07 | 中国人民解放军总医院第六医学中心 | Bidirectional pressurizing nail plate system for femoral metaphysis fracture |
-
2010
- 2010-01-29 CN CN2010203019153U patent/CN201692040U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224289A (en) * | 2014-10-13 | 2014-12-24 | 张英泽 | Bidirectional forcing sleeve nail for restoration fixation |
| CN104644256A (en) * | 2015-03-13 | 2015-05-27 | 邱正奭 | Internal fixation hollow needle for patellar fracture |
| CN107714169A (en) * | 2017-11-10 | 2018-02-23 | 徐强 | A kind of reversely screw and steel plate Bidirectional locking system |
| CN113349908A (en) * | 2021-07-09 | 2021-09-07 | 中国人民解放军总医院第六医学中心 | Bidirectional pressurizing nail plate system for femoral metaphysis fracture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361000 No. 218, Xiang Xiang Road, Haicang District, Fujian, Xiamen Patentee after: DABO MEDICAL TECHNOLOGY CO., LTD. Address before: 361000 No. 218, Xiang Xiang Road, Haicang District, Fujian, Xiamen Patentee before: Double Engine Medical Material Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |
|
| CX01 | Expiry of patent term |