CN87207475U - Intramedullary needle - Google Patents
Intramedullary needle Download PDFInfo
- Publication number
- CN87207475U CN87207475U CN 87207475 CN87207475U CN87207475U CN 87207475 U CN87207475 U CN 87207475U CN 87207475 CN87207475 CN 87207475 CN 87207475 U CN87207475 U CN 87207475U CN 87207475 U CN87207475 U CN 87207475U
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- CN
- China
- Prior art keywords
- intramedullary needle
- fracture
- shape
- umbrella stand
- intramedullary
- Prior art date
- 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.)
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Abstract
The utility model discloses an intramedullary needle used for treating the backbone fractured, which is made of the nickel titanium memory alloy, and the memory shape is an umbrella frame shape. The sectional plane of the umbrella frame has two-beam type and four-beam type; the intramedullary needle makes the contraposition of the fracture region in a right position in use, and the fracture site is fixed by the intramedullary needle with non-rigid fixing and incomplete pressure status, which is beneficial for the blood movement and the growth of the bone. And the limb of the fracture site can not bind the gypsum, and the ideal therapeutic effect can be obtained.
Description
This utility model relates to the internal fixation device for the treatment of fracture.
In the prior art, the internal fixation device that is used for the treatment of shaft fracture mainly contains V-arrangement pin, percussopunctator, three sword pins and osseous pin etc.They mostly adopt low-carbon (LC) chromium nickel molybdenum austenitic stainless steel to make, and also have discretely to make with Ultimum Ti, as the YV shape intramedullary needle that occurs recently.In clinical, it all is definite value that above-mentioned intramedullary needle (nail) places the geometry of fracture site and sectional dimension, can not adapt to geometry and the different intramedullary cavity of sectional dimension fully, thereby can not reach ideal therapeutic effect fully.
At the deficiencies in the prior art, the utility model proposes a kind of intramedullary needle of umbrella stand shape.
Technical solution of the present utility model is to make intramedullary needle with Ultimum Ti, and its shape memory is the umbrella stand shape, and there are two kinds on two bundle types and four bundle types in the umbrella stand cross section.
This utility model is designed to umbrella stand shape as shown in Figure 1.(NT-2) makes with Ultimum Ti, its deformation temperature is 0～5 ℃, best recovery temperature is 37 ℃, select the intramedullary needle that is of convenient length according to the difference of fracture site and patient's concrete condition when clinical, with external force umbrella stand being closed up is a straight-bar, inserts pulp cavity from guide hole, make the middle part of umbrella stand be in fracture, fasten with locker then and expose at the outside intramedullary needle tail end of fracture, the lengthwise position ， And that guarantees intramedullary needle is convenient to getting of intramedullary needle and is pulled out.Because the conduction of human body temperature, intramedullary needle produces memory effect in pulp cavity, and umbrella stand partly struts, and the restoring force of generation makes each root umbrella stand bone be adjacent to the chamber wall, thereby makes the rapid para-position ， of fracture site And can stop folding bone two ends that relative displacement and rotation take place.Because the umbrella stand shape has better elastic, make fracture site be in non-rigid fixing and incomplete pressurized state, add that the umbrella stand sectional dimension is very little, this is just highly beneficial to " blood fortune " and the growth of stress bone, thereby this utility model is used for the treatment of the advantage that shaft fracture has uniqueness.
The cross sectional shape of this utility model umbrella stand part has two kinds, and a kind of is as shown in Figure 2 two bundle types, and a kind of is as shown in Figure 3 four bundle types, and two bundle types are mainly used in the key treatment of fractures of upper limb, and four bundle types are mainly used in the key treatment of fractures of lower limb.
Employing this utility model treatment fracture, the limbs of fracture site can not tied up deposited stone cream And and be allowed the trouble limb that light activity is arranged, so that quicken the healing of fracture site.
Claims (2)
1, a kind of intramedullary needle that is used for the treatment of shaft fracture is made by Ultimum Ti, and the shape memory that it is characterized in that intramedullary needle is the umbrella stand shape;
2, intramedullary needle as claimed in claim 1, the umbrella stand cross sectional shape that it is characterized in that intramedullary needle are two bundle types and four bundle types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207475 CN87207475U (en) | 1987-09-09 | 1987-09-09 | Intramedullary needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207475 CN87207475U (en) | 1987-09-09 | 1987-09-09 | Intramedullary needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87207475U true CN87207475U (en) | 1988-08-24 |
Family
ID=4822909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87207475 Withdrawn CN87207475U (en) | 1987-09-09 | 1987-09-09 | Intramedullary needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87207475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913097A (en) * | 2012-06-27 | 2018-04-17 | 新特斯有限责任公司 | The bone anchoring device of variable-angle |
-
1987
- 1987-09-09 CN CN 87207475 patent/CN87207475U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913097A (en) * | 2012-06-27 | 2018-04-17 | 新特斯有限责任公司 | The bone anchoring device of variable-angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |