CN214907928U - Interlocking intramedullary nail for femoral fracture - Google Patents
Interlocking intramedullary nail for femoral fracture Download PDFInfo
- Publication number
- CN214907928U CN214907928U CN202120414861.XU CN202120414861U CN214907928U CN 214907928 U CN214907928 U CN 214907928U CN 202120414861 U CN202120414861 U CN 202120414861U CN 214907928 U CN214907928 U CN 214907928U
- Authority
- CN
- China
- Prior art keywords
- nail body
- nail
- interlocking intramedullary
- screw
- buckle
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- 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
Links
- 208000008924 Femoral Fractures Diseases 0.000 title claims abstract description 16
- 238000010030 laminating Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 241001079814 Symphyotrichum pilosum Species 0.000 description 4
- 235000004224 Typha angustifolia Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000001694 thigh bone Anatomy 0.000 description 1
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Abstract
The utility model relates to an interlocking intramedullary nail technical field specifically is an interlocking intramedullary nail for femoral fracture, the notch has been seted up to nail body A's one end, and nail body A's the other end is provided with nail body B, nail body A's one end corresponds nail body B's position department and has seted up and hold the chamber, and nail body A all is provided with the screw with nail body B's one end, nail body B's one end has seted up the through-hole, and the position department that nail body B's one side corresponds the through-hole is fixed with the stopper. The utility model discloses be equipped with the fastening packing ring, improved the inboard of screw one end and the laminating degree on nail body A, nail body B surface, increase the inboard of screw one end and the frictional force on nail body A, nail body B surface simultaneously, make the screw more firm in the use, be difficult for droing, be equipped with buckle and four draw-in grooves, make the buckle and the draw-in groove block of different positions department, can adjust the nail body B and extend nail body A's length, make this interlocking intramedullary nail can be applicable to different patients.
Description
Technical Field
The utility model relates to the technical field of interlocking intramedullary nails, in particular to an interlocking intramedullary nail for femoral fracture.
Background
The cross-locking intramedullary nail is an orthopedic internal fixation instrument with a decompression plane on the surface of an intramedullary nail rod and used in medical instruments. The structure is provided with an intramedullary nail rod, a near-end locking screw hole and a connecting sleeve positioning groove are arranged at the near end of the intramedullary nail rod, and a pressure reduction plane is arranged on the surface of the intramedullary nail rod.
Because the one end inboard of screw can not be laminated with nail pole surface closely, so the problem that the screw drops easily can appear in the use, in addition, the length of nail pole is fixed, can not adjust according to patient's thighbone length, and it is inconvenient to use, consequently, technical staff in the field provides an interlocking intramedullary nail for femoral fracture to solve the problem that proposes in the above-mentioned background art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an interlocking intramedullary nail for femoral fracture to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an interlocking intramedullary nail for femoral fracture, includes nail body A, the notch has been seted up to nail body A's one end, and nail body A's the other end is provided with nail body B, nail body A's one end corresponds nail body B's position department and has seted up and hold the chamber, and nail body A all is provided with the screw with nail body B's one end, the through-hole has been seted up to nail body B's one end, and the position department that corresponds the through-hole of nail body B's one side is fixed with the stopper, one side of stopper is fixed with flexible guide arm, the spring has been cup jointed to the outside of flexible guide arm, and the one end of flexible guide arm is fixed with the buckle, the draw-in groove has been seted up to nail body A's surface position department that corresponds the buckle.
As a further proposal of the utility model, the surface of the nail body B is close to one end position and is provided with a positive alignment platform, and one end of the nail body B is of a taper structure.
As a further aspect of the present invention, the surface of the nail body a and the nail body B is fixed with a fastening washer at a position corresponding to the screw, and the fastening washer is a member made of rubber.
As a further aspect of the utility model, the spout has been seted up to the position department that holds the corresponding stopper in one side in chamber, the size of spout and the size looks adaptation of stopper.
As a further aspect of the present invention, the size of the slot and the size of the buckle are adapted, and the slot is provided with four slots.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the fastening washer is arranged, so that the attaching degree of the inner side of one end of the screw with the surfaces of the screw body A and the screw body B can be improved, and meanwhile, the friction force between the inner side of one end of the screw and the surfaces of the screw body A and the screw body B is increased, so that the screw is more stable and is not easy to fall off in the use process;
2. be equipped with buckle and four draw-in grooves, make the buckle and the draw-in groove block of different positions department, can adjust the nail body B and extend the length of the nail body A, make this interlocking intramedullary nail can be applicable to different patients, make the fixed effect of interlocking intramedullary nail better, and convenient operation.
Drawings
FIG. 1 is a schematic structural view of an interlocking intramedullary nail for femoral fractures;
FIG. 2 is a schematic structural view of a lateral nail body A in an interlocking intramedullary nail for femoral fracture;
fig. 3 is a schematic structural diagram of a cross-section nail body A and a cross-section nail body B in an interlocking intramedullary nail for femoral fracture.
In the figure: 1. a nail body A; 2. a notch; 3. a nail body B; 4. a screw; 5. a fastening washer; 6. aligning the platform; 7. an accommodating chamber; 8. a through hole; 9. a limiting block; 10. a telescopic guide rod; 11. a spring; 12. buckling; 13. a card slot; 14. a chute.
Detailed Description
Referring to fig. 1-3, in an embodiment of the present invention, an interlocking intramedullary nail for femoral fracture includes a nail body a1, a notch 2 is formed at one end of a nail body a1, a nail body B3 is formed at the other end of the nail body a1, a containing cavity 7 is formed at one end of the nail body a1 corresponding to a position of the nail body B3, screws 4 are respectively disposed at one ends of the nail body a1 and the nail body B3, a through hole 8 is formed at one end of the nail body B3, a stopper 9 is fixed at one side of the nail body B3 corresponding to the through hole 8, a telescopic guide rod 10 is fixed at one side of the stopper 9, a spring 11 is sleeved outside the telescopic guide rod 10, a buckle 12 is fixed at one end of the telescopic guide rod 10, a slot 13 is formed at a position of the surface of the nail body a1 corresponding to the buckle 12, if the length of the nail body B3 extending out of the nail body a1 is to be adjusted, the buckle 12 can be pressed into the through hole 8 to be separated from the current slot 13, during, spring 11 and flexible guide arm 10 are compressed simultaneously, alright pulling nail body B3 (at this moment, stopper 9 slides in the inside of spout 14, plays spacing effect to nail body B3, prevents that it from appearing the pivoted condition), until buckle 12 and another draw-in groove 13 looks block, can fix nail body B3 again, make this interlocking intramedullary nail can be applicable to different patients.
In fig. 1, the surface of the nail body B3 is close to one end position and has been seted up and has been adjusted platform 6 well, and the one end of the nail body B3 is the taper structure, utilizes to adjust platform 6 well, can adjust well with the apparatus cooperation, makes things convenient for the later stage to accurately implant screw 4 fast, under the effect of taper structure, conveniently inserts the interlocking intramedullary nail into patient's marrow cavity.
In fig. 2, the fastening washer 5 is fixed on the surface of the nail body a1 and the nail body B3 at the position corresponding to the screw 4, the fastening washer 5 is a rubber member, the fastening washer 5 can improve the attaching degree of the inner side of one end of the screw 4 to the surfaces of the nail body a1 and the nail body B3, and increase the friction force between the inner side of one end of the screw 4 and the surfaces of the nail body a1 and the nail body B3, so that the screw 4 is more stable and is not easy to fall off in the using process.
In fig. 3, a sliding groove 14 is formed in a position, corresponding to the limiting block 9, on one side of the accommodating cavity 7, the size of the sliding groove 14 is matched with that of the limiting block 9, and the limiting block 9 slides in the sliding groove 14 to limit the nail body B3 and prevent the nail body B3 from rotating.
In fig. 3, the size of the slots 13 is matched with the size of the fasteners 12, and four slots 13 are provided, so that the fasteners 12 are engaged with the slots 13 at different positions, and the length of the nail body B3 extending out of the nail body a1 can be adjusted, so that the interlocking intramedullary nail can be suitable for different patients.
The utility model discloses a theory of operation is: the fastening washer 5 can improve the attaching degree of the inner side of one end of the screw 4 with the surfaces of the nail body A1 and the nail body B3, and simultaneously increase the friction force of the inner side of one end of the screw 4 with the surfaces of the nail body A1 and the nail body B3, so that the screw 4 is more stable and is not easy to fall off in the using process.
If the length of the nail body B3 extending out of the nail body A1 needs to be adjusted, the buckle 12 can be pressed into the through hole 8 to be separated from the current clamping groove 13, in the process, the spring 11 and the telescopic guide rod 10 are compressed simultaneously, and the nail body B3 can be pulled (at the moment, the limit block 9 slides in the sliding groove 14 to limit the nail body B3 and prevent the nail body B3 from rotating), and the nail body B3 can be fixed again until the buckle 12 is clamped with the other clamping groove 13, so that the interlocking intramedullary nail can be suitable for different patients.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. An interlocking intramedullary nail for femoral fracture, which comprises a nail body A (1) and is characterized in that one end of the nail body A (1) is provided with a notch (2), and the other end of the nail body A (1) is provided with a nail body B (3), one end of the nail body A (1) is provided with an accommodating cavity (7) corresponding to the position of the nail body B (3), and one end of the nail body A (1) and one end of the nail body B (3) are both provided with screws (4), one end of the nail body B (3) is provided with a through hole (8), a limiting block (9) is fixed at the position of one side of the nail body B (3) corresponding to the through hole (8), a telescopic guide rod (10) is fixed on one side of the limiting block (9), a spring (11) is sleeved outside the telescopic guide rod (10), and one end of the telescopic guide rod (10) is fixed with a buckle (12), and the surface of the nail body A (1) is provided with a clamping groove (13) at the position corresponding to the buckle (12).
2. The interlocking intramedullary nail for femoral fracture according to claim 1, wherein the surface of the nail body B (3) is provided with an alignment platform (6) near one end, and one end of the nail body B (3) is in a tapered structure.
3. An interlocking intramedullary nail for femoral fractures according to claim 1, characterized in that the fastening washer (5) is fixed on the surface of the nail body A (1) and the nail body B (3) corresponding to the position of the screw (4), and the fastening washer (5) is a rubber component.
4. The interlocking intramedullary nail for femoral fracture according to claim 1, wherein a sliding slot (14) is formed at a position corresponding to the stopper (9) on one side of the receiving cavity (7), and the size of the sliding slot (14) is matched with the size of the stopper (9).
5. Interlocking intramedullary nail for femoral fractures according to claim 1, characterized in that said slots (13) are sized to fit the size of the snap (12) and there are four slots (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120414861.XU CN214907928U (en) | 2021-02-25 | 2021-02-25 | Interlocking intramedullary nail for femoral fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120414861.XU CN214907928U (en) | 2021-02-25 | 2021-02-25 | Interlocking intramedullary nail for femoral fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214907928U true CN214907928U (en) | 2021-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120414861.XU Expired - Fee Related CN214907928U (en) | 2021-02-25 | 2021-02-25 | Interlocking intramedullary nail for femoral fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214907928U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974809A (en) * | 2021-12-15 | 2022-01-28 | 河北医科大学第三医院 | Tibia intramedullary nail |
| CN115607253A (en) * | 2022-12-12 | 2023-01-17 | 北京天智航医疗科技股份有限公司 | Internal fixing screw for femoral neck |
-
2021
- 2021-02-25 CN CN202120414861.XU patent/CN214907928U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974809A (en) * | 2021-12-15 | 2022-01-28 | 河北医科大学第三医院 | Tibia intramedullary nail |
| CN113974809B (en) * | 2021-12-15 | 2023-07-18 | 河北医科大学第三医院 | Tibia intramedullary nail |
| CN115607253A (en) * | 2022-12-12 | 2023-01-17 | 北京天智航医疗科技股份有限公司 | Internal fixing screw for femoral neck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20211130 |