CN204765865U - Locking marrow nail - Google Patents
Locking marrow nail Download PDFInfo
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- CN204765865U CN204765865U CN201520457061.0U CN201520457061U CN204765865U CN 204765865 U CN204765865 U CN 204765865U CN 201520457061 U CN201520457061 U CN 201520457061U CN 204765865 U CN204765865 U CN 204765865U
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- locking
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Abstract
The utility model provides a locking marrow nail belongs to the orthopedic medical devices field, including main nail, be equipped with a recess on the main nail, the recess runs through the surface of main nail, the near -end of main nail, the intermediate sum distal end is equipped with respectively alternately or parallel arrangement's pinning hole, main nail is passed in the pinning hole, the one end in pinning hole is located the recess, the pinning is downthehole to have the pinning to pass, the pinning includes integrated into one piece's the nail body and the head of a nail, be equipped with the external screw thread on the lateral wall of the head of a nail, the tip in pinning hole is equipped with fixed recess, the big or small looks adaptation of fixed recess and the head of a nail of pinning, be equipped with the internal thread on the inside wall of fixed recess, internal thread and internal thread looks adaptation. The utility model discloses simple structure, simple to operate designs fixed recess fluted and that be used for the fixed pinning head of a nail, and the location is accurate, and stability is good, and the pinning has adopted parallel or cross arrangement, can enlarge the indication, easy operation, the clinical use security is high, reduces the operation risk for patient's skeleton healing.
Description
Technical field
This utility model relates to orthopaedics medical instruments field, specifically a kind of intramedullary nail with lock.
Background technology
Intramedullary pin of the prior art, for clinically in the specific intramedullary pin operation for femur, tibia key stage casing fracture, comprising: nail bar is elongated rod-like structure, forms the main body of intramedullary pin, is inserted in skeleton; Fixing hole, is arranged on and follows closely on bar and run through nail bar; Staple, through above-mentioned fixing hole, will follow closely bar and skeletal fixation.Nail rod head end in the prior art and tail end arrange fixing hole respectively, and the middle part of following closely bar does not arrange fixing hole.
At present, supporting locating support must be used clinically to squeeze in pulp cavity by intramedullary pin, after squeezing into intramedullary pin time clinical, locate inaccurate situation between the fixing hole of locating support and rivet nut head end and happen occasionally, cause difficulty to operation process.Therefore, need to improve existing intramedullary nail with lock, solve intramedullary nail with lock location and forbidden, fixing unstable, indication is limited, not easy to operate, the problems such as Clinical practice safety is low.
Summary of the invention
Problem to be solved in the utility model is: overcome the deficiencies in the prior art, and provide a kind of structure simple, easy for installation, accurate positioning, good stability, expand indication, simple to operate, Clinical practice safety is high, reduces the intramedullary nail with lock of operation risk.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of intramedullary nail with lock, comprise main nail, described master nails on and is provided with a groove, described groove runs through the outer surface of main nail, the near-end of described main nail, middle and far-end is respectively equipped with the locking nail hole intersecting or be arranged in parallel, described locking nail hole is through main nail, one end of described locking nail hole is positioned at groove, pinning is had to pass in described locking nail hole, described pinning comprises integrated rivet nut and the head of a nail, the lateral wall of the described head of a nail is provided with external screw thread, the end of described locking nail hole is provided with fixed groove, the size of the head of a nail of described fixed groove and pinning is suitable, the medial wall of described fixed groove is provided with female thread, described female thread and female thread suitable.
Further, described main nail is hollow nail or solid nail.
Further, the external screw thread of the described head of a nail is coarse thread one and fine thread one from top to bottom, the female thread of described fixed groove is coarse thread two and fine thread two from top to bottom, described coarse thread one and coarse thread two suitable, described fine thread one is suitable with fine thread two.
Further, the material of described main nail and pinning is Ti-6Al-4V.
Further, the material of described main nail and pinning is Ti-6Al-7Nb.
Further, the material of described main nail and pinning is 00Cr18Ni14Mo3.
Further, the near-end of described main nail is provided with two locking nail holes be arranged in parallel, and the centre of described main nail and far-end are equipped with two locking nail holes arranged in a crossed manner.
Further, the near-end of described main nail, centre and far-end are equipped with two locking nail holes be arranged in parallel.
Further, the near-end of described main nail, centre and far-end are equipped with two locking nail holes arranged in a crossed manner.
The advantage that this utility model has and good effect are:
This utility model structure is simple, easy for installation, be designed with groove and the fixed groove for the fixing pinning head of a nail, reinforcement pinning is fixedly connected with skeleton, accurate positioning, good stability, pinning have employed parallel or arranged in a crossed manner, can expand indication, simple to operate, Clinical practice safety is high, reduces operation risk, accelerates the bone healing of patient.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment one.
Fig. 2 is the structural representation of the main nail of embodiment one.
Fig. 3 is the structural representation of embodiment two.
Fig. 4 is the structural representation of the main nail of embodiment two.
Fig. 5 is the structural representation of embodiment three.
Fig. 6 is the structural representation of the main nail of embodiment three.
Fig. 7 is the front view of main nail of the present utility model.
Fig. 8 is the structural representation that the pinning being arranged in the locking nail hole be arranged in parallel is combined with fixed groove.
Fig. 9 is the sectional view of the fixed groove be combined with the pinning being arranged in the locking nail hole be arranged in parallel.
Figure 10 is the structural representation of the pinning being arranged in the locking nail hole be arranged in parallel.
Figure 11 is the structural representation that the pinning being arranged in locking nail hole arranged in a crossed manner is combined with fixed groove.
Figure 12 is the sectional view of the fixed groove be combined with the pinning being arranged in locking nail hole arranged in a crossed manner.
Figure 13 is the structural representation of the pinning being arranged in locking nail hole arranged in a crossed manner.
In figure: 1, main nail; 2, groove; 3, locking nail hole; 4, pinning; 5, rivet nut; 6, the head of a nail; 7, coarse thread one; 8, fine thread one; 9, fixed groove; 10, coarse thread two; 11, fine thread two.
Detailed description of the invention
Embodiment one
As Fig. 1, 2, 7, shown in 8-13, a kind of intramedullary nail with lock, comprise main nail 1, main nail 1 is solid nail, main nail 1 is provided with a groove 2, groove 2 runs through the outer surface of main nail 1, the near-end of main nail 1 is provided with two locking nail holes be arranged in parallel 3, the centre of main nail 1 and far-end are equipped with two locking nail holes 3 arranged in a crossed manner, locking nail hole 3 is through main nail 1, one end of locking nail hole 3 is positioned at groove 2, pinning 4 is had to pass in locking nail hole 3, pinning 4 comprises integrated rivet nut 5 and the head of a nail 6, the lateral wall of the head of a nail 6 is provided with external screw thread, external screw thread is coarse thread 1 and fine thread 1 from top to bottom, the end of locking nail hole 3 is provided with fixed groove 9, fixed groove 9 is suitable with the size of the head of a nail 6 of pinning 4, the medial wall of fixed groove 9 is provided with female thread, female thread is coarse thread 2 10 and fine thread 2 11 from top to bottom, coarse thread 1 and coarse thread 2 10 suitable, fine thread 1 is suitable with fine thread 2 11, the material of main nail and pinning is Ti-6Al-4V.
The work process of the present embodiment: the far-end of main nail 1 is inserted in skeleton, with pinning 4 through locking nail hole 3, be fixed with skeleton by main nail 1, the head of a nail 6 of pinning 4 is threaded with fixed groove 9, coarse thread 1 and coarse thread 2 10 suitable, fine thread 1 is suitable with fine thread 2 11, strengthens being fixedly connected with of pinning 4 and skeleton, accurate positioning, good stability, Clinical practice safety is high, reduces operation risk, accelerates the bone healing of patient.
Embodiment two
As Fig. 3, 4, shown in 7-10, a kind of intramedullary nail with lock, comprise main nail 1, main nail 1 is solid nail, main nail 1 is provided with a groove 2, groove 2 runs through the outer surface of main nail 1, the near-end of main nail 1, middle and far-end is equipped with two locking nail holes be arranged in parallel 3, locking nail hole 3 is through main nail 1, one end of locking nail hole 3 is positioned at groove 2, pinning 4 is had to pass in locking nail hole 3, pinning 4 comprises integrated rivet nut 5 and the head of a nail 6, the lateral wall of the head of a nail 6 is provided with external screw thread, external screw thread is coarse thread 1 and fine thread 1 from top to bottom, the end of locking nail hole 3 is provided with fixed groove 9, fixed groove 9 is suitable with the size of the head of a nail 6 of pinning 4, the medial wall of fixed groove 9 is provided with female thread, female thread is coarse thread 2 10 and fine thread 2 11 from top to bottom, coarse thread 1 and coarse thread 2 10 suitable, fine thread 1 is suitable with fine thread 2 11, the material of main nail and pinning is Ti-6Al-7Nb.
The work process of the present embodiment: with embodiment one.
Embodiment three
As Fig. 5-7, shown in 11-13, a kind of intramedullary nail with lock, comprise main nail 1, main nail 1 is hollow nail, main nail 1 is provided with a groove 2, groove 2 runs through the outer surface of main nail 1, the near-end of main nail 1, middle and far-end is equipped with two locking nail holes 3 arranged in a crossed manner, locking nail hole 3 is through main nail 1, one end of locking nail hole 3 is positioned at groove 2, pinning 4 is had to pass in locking nail hole 3, pinning 4 comprises integrated rivet nut 5 and the head of a nail 6, the lateral wall of the head of a nail 6 is provided with external screw thread, external screw thread is coarse thread 1 and fine thread 1 from top to bottom, the end of locking nail hole 3 is provided with fixed groove 9, fixed groove 9 is suitable with the size of the head of a nail 6 of pinning 4, the medial wall of fixed groove 9 is provided with female thread, female thread is coarse thread 2 10 and fine thread 2 11 from top to bottom, coarse thread 1 and coarse thread 2 10 suitable, fine thread 1 is suitable with fine thread 2 11, the material of main nail and pinning is 00Cr18Ni14Mo3.
The work process of the present embodiment: with embodiment one.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiments of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to this utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (9)
1. an intramedullary nail with lock, comprise main nail, it is characterized in that: described master nails on and is provided with a groove, described groove runs through the outer surface of main nail, the near-end of described main nail, middle and far-end is respectively equipped with the locking nail hole intersecting or be arranged in parallel, described locking nail hole is through main nail, one end of described locking nail hole is positioned at groove, pinning is had to pass in described locking nail hole, described pinning comprises integrated rivet nut and the head of a nail, the lateral wall of the described head of a nail is provided with external screw thread, the end of described locking nail hole is provided with fixed groove, the size of the head of a nail of described fixed groove and pinning is suitable, the medial wall of described fixed groove is provided with female thread, described female thread and female thread suitable.
2. a kind of intramedullary nail with lock according to claim 1, is characterized in that: described main nail is hollow nail or solid nail.
3. a kind of intramedullary nail with lock according to claim 1 and 2, it is characterized in that: the external screw thread of the described head of a nail is coarse thread one and fine thread one from top to bottom, the female thread of described fixed groove is coarse thread two and fine thread two from top to bottom, described coarse thread one and coarse thread two suitable, described fine thread one is suitable with fine thread two.
4. a kind of intramedullary nail with lock according to claim 3, is characterized in that: the material of described main nail and pinning is Ti-6Al-4V.
5. a kind of intramedullary nail with lock according to claim 3, is characterized in that: the material of described main nail and pinning is Ti-6Al-7Nb.
6. a kind of intramedullary nail with lock according to claim 3, is characterized in that: the material of described main nail and pinning is 00Cr18Ni14Mo3.
7. a kind of intramedullary nail with lock according to claim 1, is characterized in that: the near-end of described main nail is provided with two locking nail holes be arranged in parallel, and the centre of described main nail and far-end are equipped with two locking nail holes arranged in a crossed manner.
8. a kind of intramedullary nail with lock according to claim 1, is characterized in that: the near-end of described main nail, centre and far-end are equipped with two locking nail holes be arranged in parallel.
9. a kind of intramedullary nail with lock according to claim 1, is characterized in that: the near-end of described main nail, centre and far-end are equipped with two locking nail holes arranged in a crossed manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457061.0U CN204765865U (en) | 2015-06-29 | 2015-06-29 | Locking marrow nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457061.0U CN204765865U (en) | 2015-06-29 | 2015-06-29 | Locking marrow nail |
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| Publication Number | Publication Date |
|---|---|
| CN204765865U true CN204765865U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520457061.0U Active CN204765865U (en) | 2015-06-29 | 2015-06-29 | Locking marrow nail |
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| CN (1) | CN204765865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104887302A (en) * | 2015-06-29 | 2015-09-09 | 北京贝思达生物技术有限公司 | Interlocking intramedullary nail |
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2015
- 2015-06-29 CN CN201520457061.0U patent/CN204765865U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104887302A (en) * | 2015-06-29 | 2015-09-09 | 北京贝思达生物技术有限公司 | Interlocking intramedullary nail |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |