CN204274607U - A kind of metal bone needle - Google Patents
A kind of metal bone needle Download PDFInfo
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- CN204274607U CN204274607U CN201420679934.8U CN201420679934U CN204274607U CN 204274607 U CN204274607 U CN 204274607U CN 201420679934 U CN201420679934 U CN 201420679934U CN 204274607 U CN204274607 U CN 204274607U
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- thread
- metal bone
- threaded rod
- diameter
- bone needle
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Abstract
The utility model discloses a kind of metal bone needle, comprise the end of integrative-structure, threaded portion and bar portion, it is characterized in that, described threaded portion is made up of the thread of threaded rod and upper setting thereof, along bar portion to end direction, described threaded rod diameter and end diameter reduce gradually, and described threaded rod diameter is identical with thread path, the large footpath of described thread is identical, is provided with groove in described thread.In this utility model, metal bone needle reaches the bond strength strengthening spicule and skeleton, reduces needle track and loosens risk, and with low cost, significantly reduces the burden of patient.
Description
Technical field
This utility model belongs to field of medical technology, particularly, relates to a kind of metal bone needle.
Background technology
In bone surgery, extenal fixation has the features such as operation wound is little, easy and simple to handle, functional diversities, but postoperative handicapped, the needle track caused to patient loosen and infect be always govern its development principal element.As everyone knows, the mechanics bad border of internal fixtion (as: intramedullary pin, steel plate) is obviously better than extenal fixation.Patient weight, behavioural habits, healing state, healing time, support own wt, and the handicapped excessive risk load-bearing caused is all the key factor causing needle track to loosen.Risk is loosened at present for reducing needle track, domestic and international colleague have also been made some and benefits our pursuits, and be widely used in clinical in, as: adopt lightweight material (PEEK), reduce support deadweight, utilize HA coating technology, improve the bond strength etc. between spicule and skeleton, but it is expensive, add patient's burden, meanwhile, HA coating technology adds the difficulty of removing spicule.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of metal bone needle, reaching the bond strength strengthening spicule and skeleton, reducing needle track and loosen risk, and with low cost, significantly reduce the burden of patient.
For solving the problem, the technical solution adopted in the present invention is as follows:
A kind of metal bone needle, comprise the end of integrative-structure, threaded portion and bar portion, it is characterized in that, described threaded portion is made up of the thread of threaded rod and upper setting thereof, along bar portion to end direction, described threaded rod diameter and end diameter reduce gradually, and described threaded rod diameter is identical with thread path, the large footpath of described thread is identical, is provided with groove in described thread.
Preferably, described tip is that passivity is spherical.
Preferably, described bar portion end is triangular prism structure.
Preferably, linearly type or spiral line type run through whole threaded portion to described groove.
Preferably, the described groove degree of depth is not more than the thread height at its threaded portion, place place.
Preferably, described groove cross section is crescent.
Preferably, described end and threaded rod junction, end diameter is not more than threaded rod diameter.
Preferably, the large footpath of described thread is identical with bar portion point diameter.
Compared to existing technology, beneficial effect of the present invention is: in this utility model, metal bone needle reaches the bond strength strengthening spicule and skeleton, reduces needle track and loosens risk, and with low cost, significantly reduces the burden of patient; Threaded rod adopts pyramidal structure, after needle track loosens, can continue to screw spicule; Groove is run through in threaded portion, adds the compatibility of spicule, in addition, is filled in groove, further enhancing the bond strength of spicule and skeleton by the sclerotin of postoperative growth.
Accompanying drawing explanation
Fig. 1 is metal bone needle structural representation in this utility model;
Fig. 2 is metal bone needle end and threaded portion front view in this utility model;
Fig. 3 is the left view in metal bone needle front view direction in this utility model;
Wherein, 1 be end, 2 be threaded portion, 21 be threaded rod, 22 be thread, 23 be groove, 3 for bar portion.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As Figure 1-3, for a kind of metal bone needle, comprise the end 1 of integrative-structure, threaded portion 2 and bar portion 3, threaded portion 2 is made up of threaded rod 21 and thread 22, and thread 22 is wrapped on threaded rod 21, along bar portion 3 to direction, end 1, threaded rod 21 diameter and end 1 diameter reduce gradually, threaded rod 21 diameter is identical with thread 22 path, and the large footpath of thread 22 is identical, is provided with groove 23 in thread 22.
In a preferred embodiment, metal bone needle, comprise the end 1 of integrative-structure, threaded portion 2 and bar portion 3, threaded portion 2 is made up of threaded rod 21 and thread 22, and thread 22 is wrapped on threaded rod 21, along bar portion 3 to direction, end 1, threaded rod 21 diameter and end 1 diameter reduce gradually, threaded rod 21 diameter is identical with thread 22 path, and the large footpath of thread 22 is identical, is provided with groove 23 in thread 22; Top, end 1 is that passivity is spherical, bar portion 3 end is triangular prism structure, groove 23 linearly type or spiral line type runs through whole threaded portion 2, groove 23 degree of depth is not more than thread 22 height at its threaded portion, place 2 place, groove 23 cross section is crescent, end 1 and threaded rod 21 junction, end 1 diameter is not more than threaded rod 21 diameter, and thread 22 external diameter is identical with the diameter of front end, bar portion 3.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (8)
1. a metal bone needle, comprise the end (1) of integrative-structure, threaded portion (2) and bar portion (3), it is characterized in that, described threaded portion (2) is made up of the thread (22) of threaded rod (21) and upper setting thereof, along bar portion (3) to end (1) direction, described threaded rod (21) diameter and end (1) diameter reduce gradually, described threaded rod (21) diameter is identical with thread (22) path, the large footpath of described thread (22) is identical, is provided with groove (23) in described thread (22).
2. metal bone needle as claimed in claim 1, it is characterized in that, described end (1) top is that passivity is spherical.
3. metal bone needle as claimed in claim 1, it is characterized in that, described bar portion (3) end is triangular prism structure.
4. metal bone needle as claimed in claim 1, it is characterized in that, described groove (23) linearly type or spiral line type runs through whole threaded portion (2).
5. metal bone needle as claimed in claim 4, it is characterized in that, described groove (23) degree of depth is not more than the thread (22) at its threaded portion, place (2) place highly.
6. metal bone needle as claimed in claim 5, it is characterized in that, described groove (23) cross section is crescent.
7. the metal bone needle as described in any one of claim 1-6, is characterized in that, described end (1) and threaded rod (21) junction, end (1) diameter is not more than threaded rod (21) diameter.
8. the metal bone needle as described in any one of claim 1-6, is characterized in that, the large footpath of described thread (22) is identical with bar portion (3) point diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679934.8U CN204274607U (en) | 2014-11-13 | 2014-11-13 | A kind of metal bone needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679934.8U CN204274607U (en) | 2014-11-13 | 2014-11-13 | A kind of metal bone needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204274607U true CN204274607U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420679934.8U Active CN204274607U (en) | 2014-11-13 | 2014-11-13 | A kind of metal bone needle |
Country Status (1)
| Country | Link |
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| CN (1) | CN204274607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104970876A (en) * | 2015-05-06 | 2015-10-14 | 宁德市闽东医院 | Metal spicule |
| CN105455885A (en) * | 2015-12-21 | 2016-04-06 | 武汉康斯泰德科技有限公司 | Traction type metal bone spicule |
-
2014
- 2014-11-13 CN CN201420679934.8U patent/CN204274607U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104970876A (en) * | 2015-05-06 | 2015-10-14 | 宁德市闽东医院 | Metal spicule |
| CN105455885A (en) * | 2015-12-21 | 2016-04-06 | 武汉康斯泰德科技有限公司 | Traction type metal bone spicule |
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