CN202283276U - Four-foot fusion cage for carpal bone - Google Patents
Four-foot fusion cage for carpal bone Download PDFInfo
- Publication number
- CN202283276U CN202283276U CN2011205312389U CN201120531238U CN202283276U CN 202283276 U CN202283276 U CN 202283276U CN 2011205312389 U CN2011205312389 U CN 2011205312389U CN 201120531238 U CN201120531238 U CN 201120531238U CN 202283276 U CN202283276 U CN 202283276U
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- CN
- China
- Prior art keywords
- out body
- hollow
- body portion
- hollow out
- carpal bone
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- Expired - Lifetime
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Abstract
The utility model belongs to the technical field of medical instruments and in particular relates to a four-foot fusion cage for a carpal bone for treating carpal bone fracture. The carpal bone four foot fusion cage comprises a hollow-out body portion, four inner teeth and four fixed arms, wherein the four inner teeth and the four fixed arms are located in the hollow-out body portion and. The hollow-out body portion is formed by four sections of outwards bending arc sheets with the same arc length and the same radian. The four inner teeth are located at four inner corner positions in the hollow-out body portion, and the four fixed arms are located at four outer corner positions of the hollow-out body portion. The hollow-out body portion, the inner teeth and the fixed arms are integrally formed and designed, the fixed arms bend towards the lower portion of the hollow-out body portion, and each fixed arm forms a 70-degree angle with the hollow-out body portion. The hollow-out body portion, the inner teeth and the fixed arms are all made of nickel titanium memory alloy plates with thickness of 1.5mm. The four-foot fusion cage for the carpal bone is stable and reliable in fixing effect, free of infection and simple in operation.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates in particular to a kind of carpal bone four foot fusion devices of treating fracture of the carpal bone.
Background technology
Fracture of the carpal bone generally adopts fixedly fracture of the carpal bone position of Kirschner wire, steel plate screw at present, because these apparatuses are fixing the intercarpal joints position is not had pressurization, and postoperative needs long-term external fixation; Steel plate screw is fixing need to punch on less carpal bone, and complicated operation increases operation wound, influences function of joint, and complication such as pain and infection possibly appear in postoperative, totally unfavorable to carpal recovery.
Summary of the invention
The purpose of this utility model provides a kind of simple to operate, fixed, can effectively avoid infection, and is flexible, helps the carpal bone four foot fusion devices that patient's wrist joint function recovers.
The technical scheme of this utility model does, a kind of carpal bone four foot fusion devices, and it comprises the hollow out body, is positioned at four internal tooths of hollow out body, four fixed arms; Arc length is identical, radian is identical, bandy arc-like sheet constitutes by four sections for the hollow out body; Four internal tooths are distributed on four interior angle positions in the hollow out body, and four fixed arms are positioned on the position, four exterior angles of hollow out body; The design that is formed in one of hollow out body and internal tooth and fixed arm, fixed arm be to hollow out body lower knuckle, becomes the 70o angle between fixed arm and the hollow out body; Said hollow out body, internal tooth and fixed arm are processed by the thick Ultimum Ti sheet material of 1.5mm.
The width of four sections arc-like sheets of hollow out body is 2.00mm; Ultimate range between two diagonal angles of hollow out body is 20.50mm, 22.50mm or 24.50mm.The length of internal tooth is that 5.00m, width are 1.00mm.The length of fixed arm is 8.00mm, 10.00mm or 12.00mm.
The carpal bone four foot fusion devices of this utility model utilize the Ma Shi effect of Ultimum Ti sheet material to produce dynamic plus-pressure; Fixed effect is reliable and stable; Postoperative does not need external fixation, places subcutaneous occupation mode to avoid infection, and is simple to operate; Flexible, help the recovery of patient's wrist joint function.
Description of drawings
Fig. 1 is this utility model schematic perspective view;
Fig. 2 be with this practicality fixed arm and the bending part floor map after flattening;
Fig. 3 is the top view of this utility model.
The specific embodiment:
In order to understand this utility model better, this utility model is done further to set forth below in conjunction with accompanying drawing.
Shown in Fig. 1-3, the carpal bone four foot fusion devices of this utility model comprise hollow out body 1, be positioned at four internal tooths 2 of hollow out body 1, four fixed arms 3.Arc length is identical, radian is identical, bandy arc-like sheet constitutes by four sections for hollow out body 1, and its inside is hollow, and the hollow out design makes fusion device lightly nimble, can also economical with materials reduce cost, and also is convenient to bone grafting and merges the carpal bone healing state with observing.Four internal tooths 2 are distributed on four interior angle positions in the hollow out body 1, and internal tooth can prevent the free articular surface that gets into of implantable bone, is that a fixed arm 4 is positioned on the position, four exterior angles of hollow out body 1.The design that is formed in one of hollow out body 1 and internal tooth and 2 fixed arms 3; Fixed arm 3 is to hollow out body 1 lower knuckle; Become the 70o angle between fixed arm 3 and the hollow out body 1, four fixed arms 3 have strengthened the fatigue resistance of fusion device, and 1 one-tenth 70 of four fixed arms and hollow out body
oBeing designed with of angle is beneficial to patient's postoperative early ambulant.
Each ingredient (hollow out body 1, internal tooth 2 and fixed arm 3) of the carpal bone four foot fusion devices of this utility model is processed by the thick Ultimum Ti sheet material of 1.5mm; Can produce dynamic plus-pressure 0 ℃ to 40 ℃ variation according to temperature and fix carpal bone; Avoid patient's traumatic infection, be beneficial to the carpal functional rehabilitation of patient.The width of four sections arc-like sheets of hollow out body 1 is 2.00mm, and the ultimate range between two diagonal angles can be 20.50mm, 22.50mm and 24.50mm.The length of internal tooth 2 is that 5.00m, width are 1.00mm.The length of fixed arm 3 can not surpass four carpal bone center knuckle of sufferer part, can be 8.00mm, 10.00mm or 12.00mm.
The carpal bone four foot fusion devices of this utility model are to process according to the anatomical shape of human body carpal bone; Can select four suitable foot fusion devices according to the size of carpal bone; In 0 to 5 degree centigrade brine ice, four fixed arms of Ultimum Ti carpal bone four foot fusion devices are launched, directly insert carpal bone after; With 40 degrees centigrade hot salt brine hot compress Ultimum Ti carpal bone four foot fusion devices, the restoring force that this moment, Ultimum Ti carpal bone four foot fusion devices recovered to be produced can aggregate into one with carpal bone.
Claims (4)
1. carpal bone four foot fusion devices, it comprises hollow out body (1), it is characterized in that: also comprise four internal tooths (2), four fixed arms (3) that are positioned at hollow out body (1); Arc length is identical, radian is identical, bandy arc-like sheet constitutes by four sections for hollow out body (1); Four internal tooths (2) are positioned on four interior angle positions of hollow out body (1), and four fixed arms (3) are positioned on the position, four exterior angles of hollow out body (1); The design that is formed in one of hollow out body (1) and internal tooth (2) and fixed arm (3), fixed arm (3) be to hollow out body (1) lower knuckle, becomes the 70o angle between fixed arm and the hollow out body; Said hollow out body (1), internal tooth (2), fixed arm (3) are processed by the thick Ultimum Ti sheet material of 1.5mm.
2. carpal bone four foot fusion devices as claimed in claim 1, it is characterized in that: the width of four sections arc-like sheets of hollow out body (1) is 2.00mm; Ultimate range between two diagonal angles of hollow out body (1) is 20.50mm, 22.50mm or 24.50mm.
3. carpal bone four foot fusion devices as claimed in claim 1, it is characterized in that: the length of internal tooth (2) is 5.00m, width is 1.00mm.
4. carpal bone four foot fusion devices as claimed in claim 1, it is characterized in that: the length of fixed arm (3) is 8.00mm, 10.00mm or 12.00mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205312389U CN202283276U (en) | 2011-12-19 | 2011-12-19 | Four-foot fusion cage for carpal bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205312389U CN202283276U (en) | 2011-12-19 | 2011-12-19 | Four-foot fusion cage for carpal bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202283276U true CN202283276U (en) | 2012-06-27 |
Family
ID=46294814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205312389U Expired - Lifetime CN202283276U (en) | 2011-12-19 | 2011-12-19 | Four-foot fusion cage for carpal bone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202283276U (en) |
-
2011
- 2011-12-19 CN CN2011205312389U patent/CN202283276U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190131 Address after: 650032 No. 212 Daguan Road, Xishan District, Kunming City, Yunnan Province Patentee after: 92nd Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army Address before: 650032 Department of Orthopaedics, Kunming General Hospital, Chengdu Military Region, 212 Daguan Road, Kunming City, Yunnan Province Patentee before: Xu Yongqing |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120627 |