CN2548577Y - Arch nickle-titanium pressed nail - Google Patents
Arch nickle-titanium pressed nail Download PDFInfo
- Publication number
- CN2548577Y CN2548577Y CN 02217420 CN02217420U CN2548577Y CN 2548577 Y CN2548577 Y CN 2548577Y CN 02217420 CN02217420 CN 02217420 CN 02217420 U CN02217420 U CN 02217420U CN 2548577 Y CN2548577 Y CN 2548577Y
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- CN
- China
- Prior art keywords
- nail
- fracture
- foot
- arc
- arm
- 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.)
- Expired - Fee Related
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The utility model relates to a nickel-titanium arc pressure straddle nail, which comprises an arc nail arm, and a nail foot. The nail is characterized in that the included angle between the nail foot and the arc nail arm is 60 degrees; the inner side of the nail foot is provided with four barbs; the included angle between the barbs is 60 degrees. The utility model has the advantage that sustained stress along the backbone vertical axis is formed and transmitted to the fracture end. Meanwhile the nickel-titanium arc pressure straddle nail which is arranged on the tension side bears the tensile stress and produces compressive stress on the fracture end, thus uniform, sustained, and polymerized pressure field is formed on the two sides of the fracture line to promote the restoration of the fracture.
Description
Technical field
This utility model relates to a kind of pressed nail, particularly a kind of NiTi arc pressurization pressed nail.
Background technology
Behind nearly joint or the articular fracture, stressed, direction during the displacement situation damaged of fracture end or free bone piece and adhering to making a concerted effort of muscle, ligament and joint capsule pulling force on it, fracture end is shifted, can influence the firm degree behind the reduction with joint efforts simultaneously, common method is with Gypsum Fibrosum, splint over bone joint extended immobilization, cause ankylosis, adhesion of tendon, also can in the bag Gypsum Fibrosum, be shifted, or swelling elimination back Gypsum Fibrosum is loosening, causes the fracture end para-position to be forbidden to cause malunion of fracture or heal bad; Present having with Ultimum Ti pressurization pressed nail fixes joint or fracture near the joint, but their adopt
Or " M " structure, relatively poor to the docile and obedient property of fracture end, not enough for the internal fixation strength of big juxtra-articular or thick skeleton, and the complication that the nail foot skids off takes place easily.
Summary of the invention
The purpose of this utility model is after solving in the prior art nearly joint or articular fracture, stressed during the displacement situation damaged of fracture end or free bone piece, direction and adhere to muscle on it, making a concerted effort of ligament and joint capsule pulling force, fracture end is shifted, can influence the firm degree behind the reduction with joint efforts simultaneously, common method is to use Gypsum Fibrosum, the splint over bone joint extended immobilization, cause ankylosis, adhesion of tendon, also can in the bag Gypsum Fibrosum, be shifted, or swelling elimination back Gypsum Fibrosum is loosening, causes the fracture end para-position to be forbidden to cause malunion of fracture or heal bad; Present having with Ultimum Ti pressurization pressed nail fixes joint or fracture near the joint, but their adopt
Or " M " structure, relatively poor to the docile and obedient property of fracture end, not enough for the internal fixation strength of big juxtra-articular or thick skeleton, and the problem that the nail foot skids off takes place easily.This utility model design NiTi arc pressurization pressed nail comprises cuved nail arm, nail foot, and it is characterized in that: the angle of nail foot and cuved nail arm is 60 degree, and there is agnail nail foot inboard, on the nail foot four agnails is arranged, and angle is 60 degree between agnail.The utility model has the advantages that and to form the sustained stress of prolonging key longitudinal axis, be passed to fracture end, the NiTi arc pressurization pressed nail that is positioned at tension side simultaneously bears tensile stress, and in fracture end generation compressive stress, so just formed evenly, continued in the fracture line both sides, the polymeric pressurization field of force, promote the reparation of fracture.
Description of drawings
Below in conjunction with drawings and Examples this utility model is elaborated,
Accompanying drawing 1 is a structural representation of the present utility model,
Accompanying drawing 2 is a low temperature flow sketch map of the present utility model,
Accompanying drawing 3 is a use sketch map of the present utility model,
Comprise cuved nail arm 1, nail foot 2 among the figure, it is characterized in that: nail foot 2 is 60 degree with the angle of cuved nail arm 1, and there is agnail 3 nail foot 2 inboards, on the nail foot 2 four agnails 3 are arranged, and 3 angles of agnail are 60 degree.During use the NiTi arc is pressurizeed pressed nail through the low temperature flow, nail foot 2 and deployable most 90 degree of the angle of cuved nail arm 1, cuved nail arm 1 radian is reduced to 30 degree from 60 degree, hole in the fracture line lateral symmetry, to follow closely foot 2 inserts in the bone hole, knocking cuved nail arm 1 makes it docile and obedient with surface of bone, the warm saline rewarming, NiTi arc pressurization pressed nail shape memory is replied, its restoring force is applied on the bone hole, the sustained stress of key longitudinal axis is prolonged in formation, be passed to fracture end, the NiTi arc pressurization pressed nail that is positioned at tension side simultaneously bears tensile stress, and produces compressive stress in fracture end, so just formed evenly in the fracture line both sides, continue, the polymeric pressurization field of force, and insert the NiTi arc pressurization pressed nail behind the bone hole owing to there are four agnails 3 therefore can not follow closely the problem that foot 2 skids off on the nail foot 2.
Claims (2)
1, NiTi arc pressurization pressed nail comprises cuved nail arm, nail foot, it is characterized in that: the angle of nail foot and cuved nail arm is 60 degree, and there is agnail nail foot inboard.
2, by the described NiTi arc pressurization of claim 1 pressed nail, it is characterized in that: on the nail foot four agnails are arranged, angle is 60 degree between agnail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02217420 CN2548577Y (en) | 2002-05-15 | 2002-05-15 | Arch nickle-titanium pressed nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02217420 CN2548577Y (en) | 2002-05-15 | 2002-05-15 | Arch nickle-titanium pressed nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2548577Y true CN2548577Y (en) | 2003-05-07 |
Family
ID=33696232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02217420 Expired - Fee Related CN2548577Y (en) | 2002-05-15 | 2002-05-15 | Arch nickle-titanium pressed nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2548577Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107307898A (en) * | 2017-07-28 | 2017-11-03 | 兰州西脉记忆合金股份有限公司 | A kind of hallux valgus fixator |
| CN108517441A (en) * | 2018-04-15 | 2018-09-11 | 烟台浩忆生物科技有限公司 | Low transformation temperature titanium zirconium niobium tantalum marmem, preparation method and applications |
| CN109044436A (en) * | 2018-08-02 | 2018-12-21 | 兰州西脉记忆合金股份有限公司 | A kind of nail foot fixer made of memory alloy |
| CN113693658A (en) * | 2014-02-24 | 2021-11-26 | 伊西康内外科有限责任公司 | End effector including barbed staples |
-
2002
- 2002-05-15 CN CN 02217420 patent/CN2548577Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693658A (en) * | 2014-02-24 | 2021-11-26 | 伊西康内外科有限责任公司 | End effector including barbed staples |
| CN107307898A (en) * | 2017-07-28 | 2017-11-03 | 兰州西脉记忆合金股份有限公司 | A kind of hallux valgus fixator |
| CN108517441A (en) * | 2018-04-15 | 2018-09-11 | 烟台浩忆生物科技有限公司 | Low transformation temperature titanium zirconium niobium tantalum marmem, preparation method and applications |
| CN109044436A (en) * | 2018-08-02 | 2018-12-21 | 兰州西脉记忆合金股份有限公司 | A kind of nail foot fixer made of memory alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |