CN201131790Y - Adjustable cross locking intramedullary nail positional lever - Google Patents
Adjustable cross locking intramedullary nail positional lever Download PDFInfo
- Publication number
- CN201131790Y CN201131790Y CNU2007201833412U CN200720183341U CN201131790Y CN 201131790 Y CN201131790 Y CN 201131790Y CN U2007201833412 U CNU2007201833412 U CN U2007201833412U CN 200720183341 U CN200720183341 U CN 200720183341U CN 201131790 Y CN201131790 Y CN 201131790Y
- Authority
- CN
- China
- Prior art keywords
- intramedullary nail
- revolving
- locating rod
- fixed
- interlocking intramedullary
- 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 relates to an interlocking intramedullary nail locating lever, which is a critical part in the localizer of the interlocking intramedullary nail for the limb fracture. The interlocking intramedullary nail locating lever is composed of a fixed block and a revolving block. The fixed block is composed of a fixed face, a fixed lever, a fixed clipping groove and a handle, and a channel for a rotary shaft is arranged in the middle of the fixed block. The revolving block is composed of a revolving face, a rotary shaft, a fastening screw and a revolving handle. When being used, the revolving face is driven to revolve by the revolving handle, thereby, the far end controllable scope of the locating lever is increased, the deformation produced when the interlocking intramedullary nail is knocked into the marrow cavity is corrected, and the nail is knocked into the nail hole smoothly.
Description
Technical field
This utility model relates to a kind of interlocking intramedullary nail locating rod, is the critical component in the extremity fracture interlocking intramedullary nail localizer.
Background technology
Present existing interlocking intramedullary nail locating rod is fixed, in experiment in vitro, utilize it can realize that intramedullary pin accurately locatees, but in the process of intramedullary pin in squeezing into medullary cavity distortion can appear, use fixed locating rod location this moment again and error must occur, make locating rod slide into the intramedullary pin inboard or the outside, make the location failure, pinning can not enter lockhole, can only rely on this moment X line perspective to seek lockhole down, free-hand pinning, operating difficulty and time are multiplied, make doctor and patient accept a large amount of X ray again, the health that is harmful to health, the internal fixation mode of having to even sometimes change.Based on this problem the interlocking intramedullary nail technology is complicated, the hospital of bed-side X-ray apparatus can only be arranged more than secondary, finish operation by veteran doctor.Based on this problem, a lot of people did trial, invented laser orientation system, electronic positioning system, magnetic force navigation system etc., but these methods exist the location very inaccurate, implement complicated, need to increase shortcomings such as new equipment and big expense, so clinical very difficult popularization.
Summary of the invention
Technology to be solved in the utility model provide a kind of easy and simple to handle, do not increase clinical expense, do not contact harm ray, can finish fracture again accurately, fast and add the device of lock intramedullary nail internal fixation operation.
The technical problems to be solved in the utility model realizes by following technical proposal: improve critical component---the far-end locating rod that adds the lock intramedullary nail localizer, with locating rod by original fixed change into adjustable, adjustable locating rod by fixed block, spill spin block, swingle, and rotary handle form.Spill spin block when closure and fixed block be integrated, model, function and traditional locating rod are as good as, and have guaranteed that its versatility is with compatible; Spill spin block separates with fixed block when opening, and makes the locating rod far-end can locate diameter and increases, and this augmenting portion can accurately be caught the intramedullary pin of deformation, finishes positioning step smoothly.
This utility model passes through technique scheme, can realize adding the accurate location of lock intramedullary nail, deformation when correcting intramedullary pin and squeezing into pulp cavity and accurate pinning, can significantly reduce operating time, make doctor and patient away from harm ray, and can promote under the condition that adds lock intramedullary nail and do not have C shape arm X line machine and use at basic hospital.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is this utility model structural representation.
Fig. 2 is the structural representation of fixed block A.
Fig. 3 is the structural representation of spill spin block B.
C face cutaway view when Fig. 4 is the locating rod closure.
Fig. 5 is the C face cutaway view of locating rod when opening.
Location sketch map when Fig. 6 is the locating rod closure.
Fig. 7 is the location sketch map of locating rod when opening.
The specific embodiment
This utility model is made up of fixed block A and spill spin block B as shown in Figure 1.Fixed block A is by stationary plane 1 as shown in Figure 2, fixed bar 2, and fixed card slot 4, handle 5 is formed, and there is rotating shaft passage 3 at its middle part.Spill spin block B is by the surfaces of revolution 1 as shown in Figure 3, rotating shaft 2, and holding screw 3, rotary handle 4 is formed.
Locating rod far-end diameter of section was a when spill spin block was closed as shown in Figure 5, locating rod far-end diameter of section was b when 6 spill spin blocks were opened as shown in the figure, but b is c than the position width that a increases, and can increase position width 4mm in femoral surgery, can correct the deformation of intramedullary pin in bone fully.
As shown in Figure 6, use traditional locating rod fixedly during intramedullary pin, because the deformation error makes the locating rod distal flat surface slide to the intramedullary pin side; Use this utility model as shown in Figure 7, when the slippage of locating rod distal flat surface, open the surfaces of revolution, the surfaces of revolution promptly can accurately block the intramedullary pin locating slot and finish the location.
Claims (3)
1. an adjustable interlocking intramedullary nail locating rod is made up of fixed block, spill spin block, dwang, and it is characterized in that: the locating rod distal flat surface is made up of two parts, that is: fixed block plane and spill spin block plane, and swingle Rotate 180 degree can be passed through in the spill spin block plane.
2. according to the described adjustable interlocking intramedullary nail locating rod of claim 1, it is characterized in that: dwang is connected with spill spin block is eccentric, and the rear connects turning handle.
3. according to the described adjustable interlocking intramedullary nail locating rod of claim 1, it is characterized in that: an eccentric circular hole is arranged in the fixed bar, match with the dwang diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201833412U CN201131790Y (en) | 2007-09-23 | 2007-09-23 | Adjustable cross locking intramedullary nail positional lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201833412U CN201131790Y (en) | 2007-09-23 | 2007-09-23 | Adjustable cross locking intramedullary nail positional lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201131790Y true CN201131790Y (en) | 2008-10-15 |
Family
ID=40060063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201833412U Expired - Fee Related CN201131790Y (en) | 2007-09-23 | 2007-09-23 | Adjustable cross locking intramedullary nail positional lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201131790Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025254A (en) * | 2010-06-18 | 2013-04-03 | 凯特林大学 | An easily implantable and stable nail-fastener for skeletal fixation and method |
| WO2014190606A1 (en) * | 2013-05-28 | 2014-12-04 | 河北医科大学第三医院 | Screw implantation sighting device |
| CN111920506A (en) * | 2020-09-11 | 2020-11-13 | 青岛和兴医疗器械有限公司 | Intramedullary nail distal end blind lock guider |
-
2007
- 2007-09-23 CN CNU2007201833412U patent/CN201131790Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025254A (en) * | 2010-06-18 | 2013-04-03 | 凯特林大学 | An easily implantable and stable nail-fastener for skeletal fixation and method |
| WO2014190606A1 (en) * | 2013-05-28 | 2014-12-04 | 河北医科大学第三医院 | Screw implantation sighting device |
| CN111920506A (en) * | 2020-09-11 | 2020-11-13 | 青岛和兴医疗器械有限公司 | Intramedullary nail distal end blind lock guider |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20120923 |