CN201996653U - Power hip screw guide pin positioning instrument - Google Patents
Power hip screw guide pin positioning instrument Download PDFInfo
- Publication number
- CN201996653U CN201996653U CN2011200378074U CN201120037807U CN201996653U CN 201996653 U CN201996653 U CN 201996653U CN 2011200378074 U CN2011200378074 U CN 2011200378074U CN 201120037807 U CN201120037807 U CN 201120037807U CN 201996653 U CN201996653 U CN 201996653U
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- CN
- China
- Prior art keywords
- slider
- rotating shaft
- guide pin
- screw guide
- hip screw
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- Expired - Fee Related
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Abstract
The utility model provides a power hip screw guide pin positioning instrument which comprises a positioning device support, a support fixing piece, a needling rod and a rotary shaft; the rotary shaft is arranged on the positioning device support and can rotate around an axis; a slider is arranged on the rotary shaft and can slide upwards on the rotary shaft; a guide hole is arranged on the rotary shaft along an axial direction; the needling rod is fixed on the slider; one end of the needling rod passes through the guide rod; a rotary shaft fixing piece is arranged on the positioning device support; and a slider fixing piece is arranged on the slider. The power hip screw guide pin positioning instrument has a simple structure and is convenient to operate, so that the needling points of the needling rod at a normal position and a lateral position are adjusted simultaneously, the operation time is shortened, the pain of a patient is reduced, and good clinical practicality and popularization are achieved.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments that medically is used for positioning operation, particularly a kind of dynamic hip screw guide pin position finder.
Background technology
Arrival along with the aged tendency of population epoch, femur intertrochanteric fracture is the trend of average annual growth, a kind of effective ways-dynamic hip screw internal fixation (DHS) as the treatment femur intertrochanteric fracture, have easy and simple to handle, fixation, damage for a short time, advantages such as low price are widely used clinically always.
Whether the most important of femur intertrochanteric fracture dynamic hip screw internal fixation success is that dynamic hip screw is put nail accurate, inaccurately puts the loosening or cutting that nail causes fracture end easily, broken nail, and nonunion causes operative failure.Put nail accurately and will perform the operation, whether this location that is guide pin again is accurate.The present guide pin position finder that uses clinically, its structure itself can not realize adjusting simultaneously normotopia and side position entry point, its inserting needle bar liner not only in addition, comprise that support also all is the metal manufacturing, side when perspective light is blocked by support, guide pin must be driven into femur after normotopia locate successfully and extract position finder and carry out the side again and have an X-rayed.Need adjust as the side and must extract guide pin and be driven into femur again, often on direction accurate positioning and when adjusting another position previous position lost original accurate in locating relation.Threading a needle of repeated multiple times easily makes trauma fracture increase the weight of, and prolonged operating time, increased the probability of intraoperative hemorrhage and anesthetic risks and infection of incisional wound, even the possibility of femur head necrosis is arranged.The location of guide pin and be driven into operation whole process and all need the free-hand operation under perspective of patient simultaneously, the prolongation of operating time make patient and operator increase the intake of X line undoubtedly, and be unhealthful.
Summary of the invention
This utility model provides a kind of dynamic hip screw guide pin position finder, and it is easy and simple to handle, can regulate the location to the normotopia and the side position of guide pin simultaneously under perspective.
In order to achieve the above object, the technical scheme that this utility model is taked is: a kind of dynamic hip screw guide pin position finder, comprise locator bracket, and the support fixture, the inserting needle bar, rotating shaft, rotating shaft are installed on the locator bracket, and it can rotate around the axle center; Slider is installed on the rotating shaft, slider can rotating shaft axially on slide, the rotating shaft upper edge is axially arranged with pilot hole, the inserting needle bar is fixed on the slider, the one end passes pilot hole; Locator bracket is provided with the rotating shaft fixture, and slider is provided with the slider fixture.
As a kind of preferred implementation of the present utility model, slider comprises slide block, and slide block is arranged in pilot hole, and can slide along pilot hole.Being slidingly connected also between described slider and the rotating shaft can realize that promptly rotating shaft is stuck in the inside of slider by the form of guide rail, and inserting needle bar one end passes the pilot hole that passes again behind the slider on the rotating shaft under this kind embodiment.Also be provided with hand-held plate on the slider, the hand-held position when providing normotopia or side position to adjust the inserting needle bar is preferably in this utility model, fixes a set square on slide block, and set square is positioned at outside the pilot hole.
As a kind of improvement of the present utility model, also be provided with aliform plate on the slider, its quantity is 2, is individually fixed in the radially both sides of the enterprising shank of slider.Specifically, require in actual applications between inserting needle bar and the vertical direction is that 45 degree tilt, the setting of aliform plate can be better fixing inserting needle bar, when the hand-held slider of operator is made mobile on the orientation, can not change its gradient and the position in another orientation of having adjusted.
As another kind of improvement the of the present utility model, the bottom of described locator bracket is an arcuate structure, this utility model can be matched in use, so that better fixed support itself can guarantee the localized accuracy of guide pin with the shape of the nearly section of femur.
As a kind of preferred implementation of the present utility model, described rotating shaft fixture is a jackscrew, and it is installed on the locator bracket of rotating shaft end.The jackscrew end props up the rotating shaft surface that is arranged in support, when the adjustment of side position finishes, screws jackscrew and can make rotating shaft can not continue to rotate on support.
As of the present utility model preferred embodiment a kind of, described slider fixture comprises the screw rod that passes pilot hole and the nut of screw rod end.Screw rod passes slider and pilot hole successively, when the normotopia adjustment finishes, screws the nut of screw tip, but the slip of limit slippage device on rotating shaft.
Dynamic hip screw guide pin position finder of the present utility model, in use, at first locator bracket is fixed in surgery location by the support fixture, slide on rotating shaft by slider then and normotopia and side position entry point are adjusted in the rotation of rotating shaft, simple in structure, and, makes inserting needle bar liner except adopting metal material, remainder has all adopted the high-molecular polythene material, conveniently be aided with perspective, reduce the difficulty of operation more, can greatly improve the accuracy of guide pin inserting needle, shortened operation time, and the inserting needle direction adjustment patient that finishes can leave the operating space in the art, has significantly reduced the absorption of X line.
Description of drawings
Figure 1 shows that the structural representation of dynamic hip screw guide pin position finder of the present utility model;
The A-A that Figure 2 shows that Fig. 1 is to zoomed-in view;
Figure 3 shows that B-B is to zoomed-in view among Fig. 1.
The specific embodiment
For content of the present utility model is become apparent more, be described further below in conjunction with the drawings and specific embodiments.
To shown in Figure 3, dynamic hip screw guide pin position finder of the present utility model comprises locator bracket 1, support fixture 11, inserting needle bar 4, rotating shaft 2 in conjunction with Fig. 1.The bottom of locator bracket is an arcuate structure, this utility model can be matched in use, so that better fixed support itself can guarantee the localized accuracy of guide pin with the shape of the nearly section of femur.Rotating shaft 2 is installed on the locator bracket 1, and it can rotate around the axle center; Slider 3 is installed on the rotating shaft 2, slider 3 can rotating shaft 2 axially on slide, rotating shaft 2 upper edges are axially arranged with pilot hole 21, inserting needle bar 4 is fixed on the slider 3, the one end passes pilot hole 21; Locator bracket 1 is provided with rotating shaft fixture 6, and the rotating shaft fixture is a jackscrew, and it is installed on the locator bracket of rotating shaft end.The jackscrew end props up the rotating shaft surface that is arranged in support, when the adjustment of side position finishes, screws jackscrew and can make rotating shaft can not continue to rotate on support; Slider is provided with slider fixture 5, and the slider fixture comprises the screw rod that passes pilot hole and the nut of screw rod end.Screw rod passes slider and pilot hole successively, when the normotopia adjustment finishes, screws the nut of screw tip, but the slip of limit slippage device on rotating shaft.
As shown in Figure 2, this utility model is by the slide block 31 that is arranged in pilot hole 21 slider 3 to be slided along rotating shaft 2, and inserting needle bar 4 passes pilot hole 21 after passing the slide block 31 of slider, and is fixed in the slide block 31.Being slidingly connected between described in actual applications slider and the rotating shaft also can realize by the form of guide rail, be that slider is arranged to hull shape, make rotating shaft be stuck in the inside of slider, make inserting needle bar one end pass the pilot hole that passes again behind the slider on the rotating shaft again.Also be provided with hand-held plate 33 on the slider, the hand-held position when providing normotopia or side position to adjust the inserting needle bar, fixed set square on slider as shown in Figure 2, set square is positioned at outside the pilot hole 21.The radially both sides that are positioned at the inserting needle bar on the slider also are fixed with 2 aliform plates 32, specifically, require in actual applications between inserting needle bar and the vertical direction is that 45 degree tilt, the setting of aliform plate can be better fixing inserting needle bar, when the hand-held slider of operator is made mobile on the orientation, can not change its gradient and the position in another orientation of having adjusted.
This utility model in use, by support fixture 11 locator bracket 1 is fixed in surgery location, slide on rotating shaft 2 by slider 3 then and normotopia and side position entry point are adjusted in the rotation of rotating shaft 2, except adopting metal material, makes inserting needle bar liner 41 simultaneously, remainder all adopts the high-molecular polythene material, conveniently is aided with perspective.Structure of the present utility model can reduce the difficulty of operation technique, greatly improves the accuracy of guide pin inserting needle, shortens operation time, and the inserting needle direction adjustment patient that finishes can leave the operating space in the art, significantly reduces the absorption of X line.
Concrete case study on implementation only is a preferable case study on implementation of the present utility model described in this utility model, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of this utility model claim change and modification, all should be as technology category of the present utility model.
Claims (6)
1. a dynamic hip screw guide pin position finder comprises locator bracket, the support fixture, and the inserting needle bar is characterized in that, comprises that also rotating shaft, rotating shaft are installed on the locator bracket, it can rotate around the axle center; Slider is installed on the rotating shaft, slider can rotating shaft axially on slide, the rotating shaft upper edge is axially arranged with pilot hole, the inserting needle bar is fixed on the slider, the one end passes pilot hole; Locator bracket is provided with the rotating shaft fixture, and slider is provided with the slider fixture.
2. dynamic hip screw guide pin position finder according to claim 1 is characterized in that slider comprises slide block, and slide block is arranged in pilot hole, and can slide along pilot hole.
3. dynamic hip screw guide pin position finder according to claim 1 is characterized in that, also is provided with aliform plate on the slider, and its quantity is 2, is individually fixed in the radially both sides of the enterprising shank of slider.
4. according to claim 1 or 2 or 3 described dynamic hip screw guide pin position finders, it is characterized in that the bottom of described locator bracket is an arcuate structure.
5. according to claim 1 or 2 or 3 described dynamic hip screw guide pin position finders, it is characterized in that described rotating shaft fixture is a jackscrew, it is installed on the locator bracket of rotating shaft end.
6. according to claim 1 or 2 or 3 described dynamic hip screw guide pin position finders, it is characterized in that described slider fixture comprises the screw rod that passes pilot hole and the nut of screw rod end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200378074U CN201996653U (en) | 2011-02-14 | 2011-02-14 | Power hip screw guide pin positioning instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200378074U CN201996653U (en) | 2011-02-14 | 2011-02-14 | Power hip screw guide pin positioning instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201996653U true CN201996653U (en) | 2011-10-05 |
Family
ID=44699434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200378074U Expired - Fee Related CN201996653U (en) | 2011-02-14 | 2011-02-14 | Power hip screw guide pin positioning instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201996653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109700521A (en) * | 2019-01-29 | 2019-05-03 | 苏州点合医疗科技有限公司 | One kind creating vertebral canal plastic operation device to wearing to decline |
-
2011
- 2011-02-14 CN CN2011200378074U patent/CN201996653U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109700521A (en) * | 2019-01-29 | 2019-05-03 | 苏州点合医疗科技有限公司 | One kind creating vertebral canal plastic operation device to wearing to decline |
| CN109700521B (en) * | 2019-01-29 | 2023-11-24 | 苏州点合医疗科技有限公司 | Opposite-penetrating minimally invasive vertebral canal forming device |
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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: 20111005 Termination date: 20120214 |