CN203354706U - Artificial hip joint femoral stem - Google Patents
Artificial hip joint femoral stem Download PDFInfo
- Publication number
- CN203354706U CN203354706U CN 201320420147 CN201320420147U CN203354706U CN 203354706 U CN203354706 U CN 203354706U CN 201320420147 CN201320420147 CN 201320420147 CN 201320420147 U CN201320420147 U CN 201320420147U CN 203354706 U CN203354706 U CN 203354706U
- Authority
- CN
- China
- Prior art keywords
- artificial hip
- hip joint
- femoral stem
- neck
- stem
- 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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Abstract
The utility model discloses an artificial hip joint femoral stem. The artificial hip joint femoral stem comprises a stem body 1, a cervical collar 2 and a ball joint 3; wherein the stem body 1 and the cervical collar 2 are movably connected, the ball joint 3 is arranged on the connection part of the stem body 1 and the cervical collar 2; a screw 4 is arranged on the cervical collar 2; the outer surface of the stem body 1 is coated with porous tantalum. The artificial hip joint femoral stem more stably fixes, the service life of the femoral stem is prolonged, the biocompatibility of the femoral stem is improved, the replacement rate of the femoral stem is reduced, and the artificial hip joint femoral stem is also conducive to environmental protection.
Description
Technical field
This utility model relates to a kind of artificial hip joint femoral shaft, relates in particular to the artificial hip joint femoral shaft that a kind of maintenance is stable, the life-span is long, biocompatibility is high, turnover rate is low.
Background technology
Existing artificial hip joint femoral shaft and femur are difficult to fixing or maintenance is unstable, between femoral stem and sclerotin, easily occurs looseningly, and femur bears gravity and is difficult to equilibrium, shortened the service life of femoral stem, increase the turnover rate of femoral stem, increased the discarded amount of femoral stem, be unfavorable for environmental protection.
The utility model content
In view of the foregoing defects the prior art has, this utility model aims to provide the artificial hip joint femoral shaft that a kind of maintenance is stable, the life-span is long, biocompatibility is high, turnover rate is low.
To achieve these goals, this utility model by the following technical solutions: artificial hip joint femoral shaft comprises handle body, neck neck and ball-joint; Described handle body and described neck neck are for being flexibly connected, and described handle body and described neck neck junction are provided with ball-joint; Described neck neck is provided with screw; Described handle external surface is coated with porous tantalum.
As the improvement to the technical program, the porous tantalum porosity of described handle external surface spraying is 55%.
Compared with the prior art, this utility model, owing to having adopted technique scheme, makes the artificial hip joint femoral shaft maintenance more stable, extended the service life of femoral stem, improve the biocompatibility of femoral stem, reduced the turnover rate of femoral stem, be conducive to environmental protection.
The accompanying drawing explanation
The structural representation that Fig. 1 is this utility model embodiment.
In figure: 1 handle body, 2 neck necks, 3 ball-joints, 4 screws.
The specific embodiment
Below by embodiment, this utility model is specifically described; be necessary to be pointed out that at this following examples are only for being further detailed this utility model; can not be interpreted as the restriction to this utility model protection domain, those skilled in the art can make some nonessential improvement and adjustment to this utility model according to foregoing.
Embodiment: a kind of artificial hip joint femoral shaft, as shown in Figure 1, artificial hip joint femoral shaft comprises handle body 1, neck neck 2 and ball-joint 3; Described handle body 1 and described neck neck 2 are for being flexibly connected, and described handle body 1 and described neck lead 2 junctions to be provided with ball-joint 3; Described neck neck 2 is provided with screw 4; Described handle body 1 outer surface is coated with porous tantalum.
The porous tantalum porosity of described handle body 1 outer surface spraying preferably 55%.
During use, handle body and neck neck junction are provided with ball-joint, and handle body and neck neck are flexibly connected by ball-joint.Screw contributes to improve the connective stability of structure, and porous tantalum can improve the biocompatibility of structure, promotes femoral stem to be combined with human body.The artificial hip joint femoral shaft of this structure, simple and compact for structure, connect reliably, maintenance is stable, not only can make femoral stem relative with femur fixing, and the gravity balance that femur is born distribution, can effectively prevent between femoral stem and sclerotin occurring to become flexible, extended the service life of femoral stem, reduced the turnover rate of femoral stem, reduced the discarded amount of femoral stem, be conducive to the implementation of environmental protection concept, be applicable to promoting the use of.
Claims (2)
1. an artificial hip joint femoral shaft is characterized in that: described artificial hip joint femoral shaft comprises handle body (1), neck neck (2) and ball-joint (3); Described handle body (1) and described neck neck (2) are for being flexibly connected, and described handle body (1) and described neck neck (2) junction are provided with ball-joint (3); Described neck neck (2) is provided with screw (4); Described handle body (1) outer surface is coated with porous tantalum.
2. artificial hip joint femoral shaft as claimed in claim 1 is characterized in that: the porous tantalum porosity of described handle body (1) outer surface spraying is 55%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320420147 CN203354706U (en) | 2013-07-16 | 2013-07-16 | Artificial hip joint femoral stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320420147 CN203354706U (en) | 2013-07-16 | 2013-07-16 | Artificial hip joint femoral stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203354706U true CN203354706U (en) | 2013-12-25 |
Family
ID=49802541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320420147 Expired - Fee Related CN203354706U (en) | 2013-07-16 | 2013-07-16 | Artificial hip joint femoral stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203354706U (en) |
-
2013
- 2013-07-16 CN CN 201320420147 patent/CN203354706U/en not_active Expired - Fee Related
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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: 20131225 Termination date: 20190716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |