CN204446187U - hip prosthesis - Google Patents
hip prosthesis Download PDFInfo
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- CN204446187U CN204446187U CN201420863024.5U CN201420863024U CN204446187U CN 204446187 U CN204446187 U CN 204446187U CN 201420863024 U CN201420863024 U CN 201420863024U CN 204446187 U CN204446187 U CN 204446187U
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- femoral stem
- bone
- prosthesis
- acetabular bone
- femoral
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Abstract
A kind of hip prosthesis, comprises acetabular bone, bulb and femoral stem, and wherein femoral stem is inserted in femoral bone cavitas medullaris, cooperatively interacts and rotate between bulb and acetabular bone, and the cross section of femoral stem is oval.The oval cross section of femoral stem, the range of activity making femoral stem is larger, more stable after Using prosthesis, and can effective anti-rotation.Because femoral stem is overall with tapering, far-end handle surface is designed with microflute, can bone grafting automatically in the process of Using prosthesis human body, stablizing after femoral stem monnolithic case profile better can must ensure that Using prosthesis.
Description
Technical field
This utility model relates to the technical field of medical apparatus and instruments, is a kind of stable hip prosthesis specifically.
Background technology
Hip prosthesis copies the structure of human hip to make, and generally include acetabular bone, bulb and femoral stem, femoral stem inserted in femoral bone cavitas medullaris, cooperatively interact and rotate between bulb and acetabular bone, thus the song of simulated implementation femur stretched and moved.Artificial hip prosthesis is divided into the full hip of one pole, one pole, two dynamic half hip and full hip, two dynamic half hip of replaceable head and full hip form.
Easily cause when acetabular bone wall is blocked up in hip prosthesis side bone loss too much, the risk of fracture of femoral neck can be increased in short-term.
Summary of the invention
The purpose of this utility model is the defect overcoming existing hip prosthesis, and provides a kind of stable hip prosthesis.
The technical scheme that this utility model is taked for the technical problem existed in solution known technology is:
Hip prosthesis of the present utility model, comprises acetabular bone, bulb and femoral stem, and wherein femoral stem is inserted in femoral bone cavitas medullaris, cooperatively interacts and rotate between bulb and acetabular bone, and the cross section of femoral stem is oval.
This utility model can also adopt following technical measures:
Described femoral stem near-end and far-end are respectively equipped with groove structure, and femoral stem near-end and far-end are taper.
The surface of described acetabular bone arranges micropore.
The sidewall thickness of described acetabular bone is 4mm.
Described acetabular bone and the surface of femoral stem arrange coating.
The advantage that this utility model has and good effect are:
In hip prosthesis of the present utility model, the cross section of femoral stem is oval, thus makes the range of activity of femoral stem larger, more stable after Using prosthesis, and can effective anti-rotation.Because femoral stem is overall with tapering, far-end handle surface is designed with microflute, can bone grafting automatically in the process of Using prosthesis human body, stablizing after femoral stem monnolithic case profile better can must ensure that Using prosthesis.
Accompanying drawing explanation
Fig. 1 is the structural representation of hip prosthesis of the present utility model.
Referring to drawings and Examples, this utility model is described in detail.
As shown in Figure 1, hip prosthesis of the present utility model, comprises acetabular bone 1, bulb 2 and femoral stem 3, and wherein femoral stem is inserted in femoral bone cavitas medullaris, cooperatively interacts and rotate between bulb and acetabular bone, and the cross section of femoral stem is oval.Thus the range of activity making femoral stem is larger, more stable after Using prosthesis, and can effective anti-rotation.
Femoral stem near-end and far-end are respectively equipped with groove structure, and femoral stem near-end and far-end are taper.Because femoral stem is overall with tapering, far-end handle surface is designed with microflute, can bone grafting automatically in the process of Using prosthesis human body.
The surface of acetabular bone arranges micropore, and the sidewall thickness of acetabular bone is 4mm.The micropore on acetabular bone surface ensure that the high roughness on acetabular bone surface, thus provides outstanding prosthese initial stability.
The surface of acetabular bone and femoral stem arranges coating.The coating process of acetabular bone outer surface has the effect of bone guided and self-bone grafting, and its micropore size size, porosity and good biocompatibility guarantee that prosthese can obtain long-term, stable biological fixation.Grooved position in femoral stem carries out the process of spray titanium, and the effect of titanium coating is identical about the effect of acetabular bone coating on the surface.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to this utility model, although this utility model with preferred embodiment openly as above, but, and be not used to limit this utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, certainly the technology contents of announcement can be utilized to make a little change or modification, become the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (5)
1. a hip prosthesis, comprises acetabular bone, bulb and femoral stem, and wherein femoral stem is inserted in femoral bone cavitas medullaris, cooperatively interacts and rotates, it is characterized in that between bulb and acetabular bone: the cross section of femoral stem is for oval.
2. hip prosthesis according to claim 1, is characterized in that: femoral stem near-end and far-end are respectively equipped with groove structure, and femoral stem near-end and far-end are taper.
3. hip prosthesis according to claim 2, is characterized in that: acetabular bone sidewall thickness is 4mm.
4. hip prosthesis according to claim 2, is characterized in that: the surface of acetabular bone arranges micropore.
5. hip prosthesis according to claim 4, is characterized in that: the surface of acetabular bone and femoral stem arranges coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863024.5U CN204446187U (en) | 2014-12-31 | 2014-12-31 | hip prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863024.5U CN204446187U (en) | 2014-12-31 | 2014-12-31 | hip prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204446187U true CN204446187U (en) | 2015-07-08 |
Family
ID=53653142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420863024.5U Active CN204446187U (en) | 2014-12-31 | 2014-12-31 | hip prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204446187U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106890036A (en) * | 2017-02-20 | 2017-06-27 | 王燎 | A kind of individuation femur short handle |
| CN107137163A (en) * | 2017-06-01 | 2017-09-08 | 成都贝施美医疗设备有限公司 | A kind of hip prosthesis |
| CN110464512A (en) * | 2019-09-11 | 2019-11-19 | 广州华钛三维材料制造有限公司 | A kind of hip prosthesis |
-
2014
- 2014-12-31 CN CN201420863024.5U patent/CN204446187U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106890036A (en) * | 2017-02-20 | 2017-06-27 | 王燎 | A kind of individuation femur short handle |
| CN107137163A (en) * | 2017-06-01 | 2017-09-08 | 成都贝施美医疗设备有限公司 | A kind of hip prosthesis |
| CN110464512A (en) * | 2019-09-11 | 2019-11-19 | 广州华钛三维材料制造有限公司 | A kind of hip prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |