CN202515761U - Nickel-titanium memory alloy sustained-pressurization bone fracture plate - Google Patents
Nickel-titanium memory alloy sustained-pressurization bone fracture plate Download PDFInfo
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- CN202515761U CN202515761U CN2011204934905U CN201120493490U CN202515761U CN 202515761 U CN202515761 U CN 202515761U CN 2011204934905 U CN2011204934905 U CN 2011204934905U CN 201120493490 U CN201120493490 U CN 201120493490U CN 202515761 U CN202515761 U CN 202515761U
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- plate
- fracture
- bone
- bone fracture
- fracture plate
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Abstract
The utility model relates to an internal fixing device for treatment human body limb fracture, and particularly relates to a nickel-titanium memory alloy sustained-pressurization bone fracture plate which is characterized in that the middle part of the bone fracture plate is cambered, and the deformation temperature of the bone fracture plate is set within a range of 0-4 DEG C, while the recovery temperature of the bone fracture plate is set within a range of 36-37 DEG C. In an operation, the cambered part is flattened by a special tool after the bone fracture plate is cooled by brine ice, and then the bone fracture plate is fixed on a backbone by screws. After the operation, the middle part of the bone fraction plate can be recovered to the original cambered state under the action of the body temperature; however, the bone fraction plate cannot be recovered to be at the original cambered state under the fixing action of the screw; and restoring force produced in a recovery process of the middle of the bone fraction plate can produce pressure of compression on a fracture broken end. The nickel-titanium memory alloy sustained-pressurization bone fracture plate is capable of producing a sustained pressurization action on the fracture broken end from the fixation of the bone fracture plate at the fracture position so as to facilitate fracture healing.
Description
Technical field
This utility model relates to a kind of internal fixation device of treating human limb fracture usefulness.
Background technology
Having proved exerts pressure at fracture end at present can promote union of fracture.Present known compression steel plate has two kinds: a kind of is to utilize the tighten up a screw inclined-plane of bore edges and the inclined-plane at cap nut edge of steel plate to pressurize; But the defective of this steel plate is that pressurization is disposable; About postoperative two weeks; Because the sclerotin of fracture site has absorption to a certain degree, this pressurization will disappear; The another kind of dynamic property compression steel plate that cries; The screw hole of steel plate is oblong, and screw is beaten the centre in the hole, leaves certain clearance up and down; When suffering from the limb heavy burden,, body wt will produce pressurization at fracture site because concerning; The defective of dynamic property compression steel plate be union of fracture can not produce pressurization in early days suffer from limb to a certain degree the time when union of fracture and just can bear a heavy burden because have only, this needs about three months time at least; There is not pressurization at this steel plate of first trimester in other words, and the inapplicable fracture of upper limb of this steel plate.
Summary of the invention
In order to overcome the deficiency that existing pressurized bone plate can not persistent pressure, this utility model provides a kind of blade plate that can produce the persistent pressure effect.
This utility model solves the technical scheme that its technical problem adopted: the middle part of blade plate is designed to arc; Deformation temperature is set at 0 ℃～4 ℃; Recovery temperature is set at 36 ℃～37 ℃, utilizes the effect of the shape memory characteristic realization persistent pressure of Ultimum Ti.The operation back is because the effect of body temperature; The blade plate middle part will be returned to original bowed state; But because the fixation of screw makes it can not be returned to the former shape of coming, the restoring force that is produced in its Recovery Process so will produce the pressure of pressurization at fracture site.
The beneficial effect of this utility model is: be fixed on fracture from blade plate and begin can produce the pressurization that continues to the broken ends of fractured bone of fracture to the healing of fracture, thereby play the effect that promotes union of fracture.
Description of drawings
Fig. 1 is a front view, and Fig. 2 is a left view.The blade plate middle part is convexly curved.
The specific embodiment
Flatten with the arc of brine ice cooling back reuse specific purpose tool during operation the blade plate middle part, with screw fixings on the backbone.
Claims (1)
1. Ultimum Ti persistent pressure blade plate of treating human limb fracture usefulness.The middle part that it is characterized in that blade plate is an arc, and deformation temperature is set at 0～4 ℃, and recovery temperature is set at 36～37 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204934905U CN202515761U (en) | 2011-11-23 | 2011-11-23 | Nickel-titanium memory alloy sustained-pressurization bone fracture plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204934905U CN202515761U (en) | 2011-11-23 | 2011-11-23 | Nickel-titanium memory alloy sustained-pressurization bone fracture plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202515761U true CN202515761U (en) | 2012-11-07 |
Family
ID=47098737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204934905U Expired - Fee Related CN202515761U (en) | 2011-11-23 | 2011-11-23 | Nickel-titanium memory alloy sustained-pressurization bone fracture plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202515761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103932775A (en) * | 2014-05-17 | 2014-07-23 | 赵全明 | Bone fracture plate used for fracture of tail portion of sacrum |
| CN105816227A (en) * | 2015-01-05 | 2016-08-03 | 财团法人金属工业研究发展中心 | Bone fixing device |
-
2011
- 2011-11-23 CN CN2011204934905U patent/CN202515761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103932775A (en) * | 2014-05-17 | 2014-07-23 | 赵全明 | Bone fracture plate used for fracture of tail portion of sacrum |
| CN105816227A (en) * | 2015-01-05 | 2016-08-03 | 财团法人金属工业研究发展中心 | Bone fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20141123 |
|
| EXPY | Termination of patent right or utility model |