CN2430959Y - Self-locking non-crank artificial hip joint - Google Patents
Self-locking non-crank artificial hip joint Download PDFInfo
- Publication number
- CN2430959Y CN2430959Y CN 00244070 CN00244070U CN2430959Y CN 2430959 Y CN2430959 Y CN 2430959Y CN 00244070 CN00244070 CN 00244070 CN 00244070 U CN00244070 U CN 00244070U CN 2430959 Y CN2430959 Y CN 2430959Y
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- self
- locking
- thread
- platform
- screw
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Abstract
The utility model relates to a self-locking non-handle artificial hip joint, which comprises an artificial femoral head, a cover body and a center fixing nail. The utility model is characterized in that the large convex bottom part of the cover body is provided with a convex self-locking platform. The center of the self-locking platform is provided with an inner hold of the self-locking platform with a self-locking thread. A self-locking screw is connected according to the self-locking thread. The lower end of the self-locking screw is provided with a tension thread for spongy bones. The top end of the self-locking screw is provided with a tool opening. The utility model has the advantages that the self-locking non-handle artificial hip joint is adopted to be a stable structure and reinforce the early clinical fixing effects of rotation resistance and biological fixation of the artificial joint. The installing operation is convenient. The developing prospect of the utility model is excellent.
Description
This utility model relates to a kind of orthopaedics artificial joint, particularly a kind of self-locking non-stem hip prothesis.
At present, orthopaedics clinical practice stockless class joint and proximal femur are fixing in early days, often because of having only the single nail in a center fixing, so early stage stabilizing effect is relatively poor, troubles such as easy generation is loosening, displacement are unfavorable for the early stage fixing of artificial joint, therefore, use as a kind of ideal artificial joint, structure still is weak.
The purpose of this utility model is to design a kind of self-locking non-stem hip prothesis, and the early stage troubles such as easily generation is loosening, displacement of fixing of proximal femur were overcome when it made above-mentioned application stockless class joint, were the even more ideal artificial jointes of a kind of clinical effectiveness.
The technical solution of the utility model: a kind of self-locking non-stem hip prothesis, comprise artificial thigh bone, cover body and center fixation nail, it is characterized in that having the self-locking platform of a projection in the greater trochanter bottom of cover body, there is the self-locking platform endoporus of self-locking thread at self-locking platform center, wherein be connected with a Self-locking screw according to self-locking thread, there is spongy bone pulling force screw thread the lower end of Self-locking screw, and there is instrument port on the top of Self-locking screw.
The self-locking platform of the greater trochanter bottom of above-mentioned said cover body is frustum, on the osculum end of frustum sharp annular edge is arranged.
Sharp annular edge on the frustum self-locking platform osculum end of the greater trochanter bottom of above-mentioned said cover body can be the annular edge of a knife, also can be the dentation edge of a knife.
Self-locking thread on the above-mentioned said Self-locking screw is fine pitch, minor thread, and the spongy bone pulling force screw thread on the Self-locking screw lower end is coarse pitch, major thread.
The self-locking non-stem hip prothesis of above-mentioned said band self-locking platform and Self-locking screw should be divided into left and right two kinds of type shapes according to the proximal femur anatomic form.
Operation principle of the present utility model and using method: when the self-locking non-stem hip prothesis is contained in proximal femur, the insertion of cover body center fixation nail is fixed in femur footpath central straight to a strand greater trochanter lower end cortical bone and is ended, and the Self-locking screw lower end that enters spongy bone on the self-locking platform is the pulling force screw thread, produce the function of mutual self-locking with the self-locking thread of upper end, thus, little tuberosity (own fulcrum), femur footpath mid point (according to the center fixation nail), the triangle that 3 of greater trochanters (according to self-locking platform and Self-locking screw) form is not point-blank fixed, and this kind fixedly should be the rock-steady structure in the geometry.
Superiority of the present utility model: 1, use the self-locking non-stem hip prothesis, can produce a kind of urgent artificial hip prosthesis of being fixed in femur large and small tuberosity part upper end and marrow neck peripheral bone wall at large and small tuberosity part by artificial hip joint, and rock-steady structure is arranged, strengthened biological fixation and anti-rotational clinical early stage fixed effect; 2, be skillfully constructed, can solve the early stage easily loosening problem of artificial joint effectively; 3, fitting operation facility, the useful life is permanent, aspect such artificial joint field of application good DEVELOPMENT PROSPECT is being arranged.
Further specify present technique below in conjunction with drawings and Examples.
Fig. 1 is the overall structure generalized section of the related a kind of self-locking non-stem hip prothesis of this utility model.
Fig. 2 is the self-locking platform of the related a kind of self-locking non-stem hip prothesis of this utility model connects Self-locking screw according to self-locking thread a local enlarged diagram.
Wherein: 1 is artificial thigh bone, 2 is cover body, 3 are the center fixation nail, 4 are the self-locking platform, 5 is Self-locking screw, and 6 for there being the self-locking platform endoporus of self-locking thread, and 7 is the self-locking thread of Self-locking screw upper end, 8 is the pulling force screw thread (cancellous threads) of Self-locking screw lower end, and 9 is the sharp annular edge on the frustum self-locking platform osculum end.
Embodiment: a kind of self-locking non-stem hip prothesis (seeing Fig. 1,2), comprise artificial thigh bone 1, cover body 2 and center fixation nail 3, it is characterized in that having the self-locking platform 4 of a projection in the greater trochanter bottom of cover body 2, there is the self-locking platform endoporus 6 of self-locking thread at self-locking platform 4 centers, wherein be connected with a Self-locking screw 5 according to self-locking thread 7, there is spongy bone pulling force screw thread 8 lower end of Self-locking screw 5, and there is instrument port on the top of Self-locking screw 5.
The self-locking platform 4 of the greater trochanter bottom of above-mentioned said cover body 2 is frustum, on the osculum end of frustum sharp annular edge 9 is arranged.
Sharp annular edge 9 on the frustum self-locking platform osculum end of the greater trochanter bottom of above-mentioned said cover body 2 can be the annular edge of a knife, also can be dentation edge of a knife (see figure 2).
Self-locking thread 7 on the above-mentioned said Self-locking screw 5 is fine pitch, minor thread, and the spongy bone pulling force screw thread 8 on Self-locking screw 5 lower ends is coarse pitch, major thread (see figure 2).
Above-mentioned said band self-locking platform 4 should be divided into left and right two kinds of type shapes according to the proximal femur anatomic form with the self-locking non-stem hip prothesis (see figure 1) of Self-locking screw 5.
Claims (5)
1, a kind of self-locking non-stem hip prothesis, comprise artificial thigh bone, cover body and center fixation nail, it is characterized in that having the self-locking platform of a projection in the greater trochanter bottom of cover body, there is the self-locking platform endoporus of self-locking thread at self-locking platform center, wherein be connected with a Self-locking screw according to self-locking thread, there is spongy bone pulling force screw thread the lower end of Self-locking screw, and there is instrument port on the top of Self-locking screw.
2, by the said self-locking non-stem hip prothesis of claim 1, it is characterized in that the self-locking platform of the greater trochanter bottom of said cover body is frustum, on the osculum end of frustum sharp annular edge is arranged.
3, by the said self-locking non-stem hip prothesis of claim 2, it is characterized in that the sharp annular edge on the frustum self-locking platform osculum end of greater trochanter bottom of said cover body can be the annular edge of a knife, also can be the dentation edge of a knife.
4, by the said self-locking non-stem hip prothesis of claim 1, it is characterized in that the self-locking thread on the said Self-locking screw is fine pitch, minor thread, the spongy bone pulling force screw thread on the Self-locking screw lower end is coarse pitch, major thread.
5,, it is characterized in that the self-locking non-stem hip prothesis of said band self-locking platform and Self-locking screw should be divided into left and right two kinds of type shapes according to the proximal femur anatomic form by the said self-locking non-stem hip prothesis of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00244070 CN2430959Y (en) | 2000-08-03 | 2000-08-03 | Self-locking non-crank artificial hip joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00244070 CN2430959Y (en) | 2000-08-03 | 2000-08-03 | Self-locking non-crank artificial hip joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2430959Y true CN2430959Y (en) | 2001-05-23 |
Family
ID=33603826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00244070 Expired - Fee Related CN2430959Y (en) | 2000-08-03 | 2000-08-03 | Self-locking non-crank artificial hip joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2430959Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004080354A1 (en) * | 2003-03-13 | 2004-09-23 | Poonung Chieng | An aritificial hip joint without a shaft |
| CN100542504C (en) * | 2003-12-22 | 2009-09-23 | 普鲁斯外科植入物有限公司 | The glenoid fossa that is used for hip replacement |
| WO2010075774A1 (en) | 2008-12-30 | 2010-07-08 | Shih Lu-Sun | Replacing module for femoral head and surgical tools |
| CN113081400A (en) * | 2019-12-23 | 2021-07-09 | 澳特拉斯(北京)科技有限公司 | Wing-shaped stem-free hip joint prosthesis |
-
2000
- 2000-08-03 CN CN 00244070 patent/CN2430959Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004080354A1 (en) * | 2003-03-13 | 2004-09-23 | Poonung Chieng | An aritificial hip joint without a shaft |
| CN100542504C (en) * | 2003-12-22 | 2009-09-23 | 普鲁斯外科植入物有限公司 | The glenoid fossa that is used for hip replacement |
| WO2010075774A1 (en) | 2008-12-30 | 2010-07-08 | Shih Lu-Sun | Replacing module for femoral head and surgical tools |
| CN101766508B (en) * | 2008-12-30 | 2013-05-01 | 施鲁孙 | Femoral head replacement module and surgical tool |
| CN113081400A (en) * | 2019-12-23 | 2021-07-09 | 澳特拉斯(北京)科技有限公司 | Wing-shaped stem-free hip joint prosthesis |
| EP4079263A4 (en) * | 2019-12-23 | 2023-02-01 | Hongwen Zhu | Wing-shaped stemless hip prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Lige Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010523 Termination date: 20090903 |