CN205054397U - Prevent thighbone intramedullary nail soon - Google Patents
Prevent thighbone intramedullary nail soon Download PDFInfo
- Publication number
- CN205054397U CN205054397U CN201520809680.1U CN201520809680U CN205054397U CN 205054397 U CN205054397 U CN 205054397U CN 201520809680 U CN201520809680 U CN 201520809680U CN 205054397 U CN205054397 U CN 205054397U
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- thighbone
- neck
- screw
- hole
- femur
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Abstract
The utility model relates to an orthopedic medical equipment technical field especially relates to a prevent thighbone intramedullary nail soon. Including having a thighbone nail that penetrates thighbone marrow inner chamber by the near -end, thighbone neck screw, prevent revolving round pin and fixed loop, through -hole and via hole have been seted up to the side of thighbone nail, the central line of through -hole and via hole is parallel to each other in the coplanar, thighbone neck screw is sold to wear to establish in through -hole and via hole respectively with preventing revolving, the one end of fixed loop is connected with preventing the end of fixed who revolves the round pin, the other end of fixed loop has the fixed orifices, the fixed orifices suit is at the end of thighbone neck screw, the end of thighbone neck screw has the nut, the external diameter of nut slightly is greater than the internal diameter of fixed orifices, be equipped with on fixed loop and the thighbone neck screw and be used for the fixed relative pivoted limit structure with the fixed loop of thighbone neck screw. The utility model discloses a prevent thighbone intramedullary nail soon through preventing revolving round pin and limit structure, can limit the rotation and the thighbone neck screw of thighbone neck screw self and follow closely axis of ordinates rotation around the thighbone, does benefit to the state of an illness and recovers.
Description
Technical field
This utility model relates to orthopedic medical device technical field, particularly relates to one and prevents revolving femoral interlocking nail.
Background technology
The known intramedullary pin for being fixed fractured near end of thighbone has one can be penetrated femur bone marrow inner chamber hip nail and a neck of femur screw penetrated from the side in the through hole favouring the stretching, extension of the hip nail longitudinal axis by near-end, when being fixed near end of thighbone, need to prevent the rotation of neck of femur screw self and neck of femur screw around hip nail vertical axes, the existing most more complicated of structure preventing rotating, operation inconvenience.
Utility model content
The technical problems to be solved in the utility model is: install the problem of difficulty to solve distal locking nail in prior art, and this utility model provides a kind of to be prevented revolving femoral interlocking nail.
This utility model solves the technical scheme that its technical problem adopts: a kind ofly anti-ly revolves femoral interlocking nail, comprise and there is one is penetrated femur bone marrow inner chamber hip nail by near-end, neck of femur screw, prevent revolving pin and retainer ring, the side opening of hip nail is provided with through hole and via hole, the centrage of described through hole and via hole is parallel to each other in same plane, neck of femur screw and anti-revolve pin and be located in through hole and via hole respectively, one end of retainer ring is fixedly connected with the anti-tail end revolving pin, the other end of retainer ring has fixing hole, fixing hole is sleeved on the end of neck of femur screw, the end of neck of femur screw has nut, the external diameter of nut is slightly larger than the internal diameter of fixing hole, described retainer ring and neck of femur screw are provided with for resected femur neck screw and retainer ring position limiting structure in relative rotation.
Further, particularly, described position limiting structure comprises the voussoir of evagination in neck of femur screw outer ring, is opened in the first groove of fixing hole inner ring and stage clip, described voussoir be positioned at neck of femur screw end outer ring and near nut, described first groove matches with the voussoir of evagination, described neck of femur screw offers the second groove for holding voussoir, one end of described stage clip is connected with bottom voussoir, and the other end of described stage clip is connected with the bottom in the second groove.
For the ease of inserting, the described anti-leading portion revolving pin is flat.
The beneficial effects of the utility model are, of the present utility modelly anti-revolve femoral interlocking nail, revolve pin and position limiting structure by anti-, can limit the rotation of neck of femur screw self and neck of femur screw around hip nail vertical axes, be beneficial to operation, be beneficial to the state of an illness and recover.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the side view of hip nail.
Fig. 3 is the structural representation of position limiting structure.
In figure: 1, hip nail, 11, through hole, 12, via hole, 2, neck of femur screw, 21, nut, the 22, second groove, 3, anti-ly revolve pin, 4, retainer ring, the 41, first groove, 5, voussoir, 6, stage clip.
Detailed description of the invention
By reference to the accompanying drawings this utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with this utility model.
As Figure 1-3, it is this utility model embodiment, one is anti-revolves femoral interlocking nail, comprise and there is one is penetrated femur bone marrow inner chamber hip nail 1 by near-end, neck of femur screw 2, prevent revolving pin 3 and retainer ring 4, the side opening of hip nail 1 is provided with through hole 11 and via hole 12, the centrage of through hole 11 and via hole 12 is parallel to each other in same plane, neck of femur screw 2 and anti-ly revolve pin 3 and be located in through hole 11 and via hole 12 respectively, one end of retainer ring 4 is fixedly connected with the anti-tail end revolving pin 3, the other end of retainer ring 4 has fixing hole, fixing hole is sleeved on the end of neck of femur screw 2, the end of neck of femur screw 2 has nut 21, the external diameter of nut 21 is slightly larger than the internal diameter of fixing hole, retainer ring 4 and neck of femur screw 2 are provided with for resected femur neck screw 2 and retainer ring 4 position limiting structure in relative rotation.
Position limiting structure comprises the voussoir 5 of evagination in neck of femur screw 2 outer ring, is opened in the first groove 41 of fixing hole inner ring and stage clip 6, voussoir 5 be positioned at neck of femur screw 2 end outer ring and near nut 21, first groove 41 matches with the voussoir 5 of evagination, neck of femur screw 2 offers the second groove 22 for holding voussoir 5, one end of stage clip 6 is connected with bottom voussoir 5, and the other end of stage clip 6 is connected with the bottom in the second groove 22.
Use is, retainer ring 4 is sleeved near the end of neck of femur screw 2, but voussoir 5 is not connected in the first groove 41, after neck of femur screw 2 is screwed into position, again retainer ring 4 is pulled back, voussoir 5 is first pressed in the second groove 22 by the edge of retainer ring 4, then spring in the first groove 41, thus realize clamping, the rotation of restriction neck of femur screw 2.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content in description, must determine its technical scope according to right.
Claims (3)
1. prevent revolving femoral interlocking nail for one kind, it is characterized in that: comprise and there is one is penetrated femur bone marrow inner chamber hip nail (1) by near-end, neck of femur screw (2), prevent revolving pin (3) and retainer ring (4), the side opening of hip nail (1) is provided with through hole (11) and via hole (12), the centrage of described through hole (11) and via hole (12) is parallel to each other in same plane, neck of femur screw (2) and anti-revolve pin (3) and be located in through hole (11) and via hole (12) respectively, one end of retainer ring (4) is fixedly connected with the anti-tail end revolving pin (3), the other end of retainer ring (4) has fixing hole, fixing hole is sleeved on the end of neck of femur screw (2), the end of neck of femur screw (2) has nut (21), the external diameter of nut (21) is slightly larger than the internal diameter of fixing hole, described retainer ring (4) and neck of femur screw (2) are provided with for resected femur neck screw (2) and retainer ring (4) position limiting structure in relative rotation.
2. prevent as claimed in claim 1 revolving femoral interlocking nail, it is characterized in that: described position limiting structure comprises the voussoir (5) of evagination in neck of femur screw (2) outer ring, be opened in the first groove (41) and the stage clip (6) of fixing hole inner ring, described voussoir (5) be positioned at neck of femur screw (2) end outer ring and near nut (21), described first groove (41) is matched with the voussoir (5) of evagination, described neck of femur screw (2) offers the second groove (22) for holding voussoir (5), one end of described stage clip (6) is connected with voussoir (5) bottom, the other end of described stage clip (6) is connected with the bottom in the second groove (22).
3. prevent as claimed in claim 1 revolving femoral interlocking nail, it is characterized in that: the described anti-leading portion revolving pin (3) is flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520809680.1U CN205054397U (en) | 2015-10-19 | 2015-10-19 | Prevent thighbone intramedullary nail soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520809680.1U CN205054397U (en) | 2015-10-19 | 2015-10-19 | Prevent thighbone intramedullary nail soon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205054397U true CN205054397U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520809680.1U Active CN205054397U (en) | 2015-10-19 | 2015-10-19 | Prevent thighbone intramedullary nail soon |
Country Status (1)
| Country | Link |
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| CN (1) | CN205054397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109259842A (en) * | 2018-10-10 | 2019-01-25 | 苏州吉美瑞医疗器械股份有限公司 | A kind of femur marrow internal fixation nail |
-
2015
- 2015-10-19 CN CN201520809680.1U patent/CN205054397U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109259842A (en) * | 2018-10-10 | 2019-01-25 | 苏州吉美瑞医疗器械股份有限公司 | A kind of femur marrow internal fixation nail |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |