CN2657614Y - Metal acetabulum outer cup of artificial hip joint - Google Patents
Metal acetabulum outer cup of artificial hip jointInfo
- Publication number
- CN2657614Y CN2657614Y CN 200320118382 CN200320118382U CN2657614Y CN 2657614 Y CN2657614 Y CN 2657614Y CN 200320118382 CN200320118382 CN 200320118382 CN 200320118382 U CN200320118382 U CN 200320118382U CN 2657614 Y CN2657614 Y CN 2657614Y
- Authority
- CN
- China
- Prior art keywords
- outer cup
- hip joint
- cup
- basis
- positioning
- 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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- Prostheses (AREA)
Abstract
The utility model discloses an improved metal acetabulum outer cup of artificial hip joint which is characterized in that an external surface of a fundamental metal acetabulum outer cup is integrated with a plurality of fixed location thorns so as to prevent movement, rotation as well as breaking off and to increase the contact surface. The external surface enhances the service life of the product and eliminates the physiological burden of patients. The utility model is applicable to the hip bone replacement surgery for the hip joint disease.
Description
Affiliated technical field
This utility model relates to the artificial joint of medical domain, particularly a kind of improved artificial hip joint metal acetabular bone.
Background technology
The outer cup of artificial hip joint metal acetabular bone is a body implant.The alternative of implant into body hip joint when being used for the human hip pathological changes and need carrying out the orthopaedics replacement operation makes patient recover the physiological function of hip joint to a certain extent, and alleviating pain improves motion and improves the quality of living.In prior art, the outer cup of a metal acetabular bone outer surface is not with the positioning and fixing thorn, and weak point first location and fastening performance are bad, and it two is that contact area is little; Finally can cause the outer cup of metal to become flexible, come off, cause operative failure, add heavy patient's physiological load.
Summary of the invention
The purpose of this utility model is to provide a kind of improved artificial hip joint metal acetabular bone outer cup, the defective that can overcome outer glass of location of existing artificial hip joint metal acetabular bone and fastening performance is bad, contact area is little etc. causes becoming flexible, coming off.
Task of the present utility model realizes by this way: the outer cup of this artificial hip joint metal acetabular bone comprises the outer cup of artificial hip joint metal acetabular bone that outer cup in basis and positioning and fixing thorn disjunctor are formed, and disjunctor is made several positioning and fixing and stung on the spherical outside surface that it is characterized in that the basis outside glass.
From above-mentioned improvement as can be known and since the basis outside on the spherical outside surface of cup disjunctor make several positioning and fixing thorn, strengthened the location and the tightness of the outer cup of metal acetabular bone, increase contact area, reach and prevent the effect of rotating, becoming flexible and coming off.
When implementing this utility model, described positioning and fixing thorn: one, the metal acetabular bone outside on the spherical outside surface on outer glass of cup basis disjunctor make several positioning and fixing and sting; Two, positioning and fixing thorn can protrude in the shape of basis outer cup outer surface for pointed cone type or dome-type or other, and the cone angle of positioning and fixing thorn is 0.01 degree～150 degree; Three, the positioning and fixing thorn highly is: the center of circle with cup outside the basis is a benchmark, greater than 0.5～30 millimeter of cup spherical outside surface radius outside the basis; Four, positioning and fixing thorn diameter is 1～15 millimeter; The diameter of positioning and fixing thorn, highly, cone angle is excessive, can cause being difficult for squeezing in the acetabular bone; Too small meeting causes the positioning and fixing effect bad.
Description of drawings
Figure: be the sketch map of a kind of concrete structure of this utility model
The specific embodiment
As shown in the figure, by cup 1 and positioning and fixing thorn 2 this utility model of forming outside the basis, basic identical with the outer cup of existing artificial hip joint metal acetabular bone specification.Its difference is to make 3 positioning and fixing thorns 2 outside the basis on cup 1 the spherical outside surface, and the peak of positioning and fixing thorn is: the centre of sphere with cup 1 basis outside is a benchmark, greater than 6 millimeters of outside the basis glass of 1 spherical radius; And one-tenth angular distribution; The cone angle of positioning and fixing thorn is 60 degree; The diameter of positioning and fixing thorn is 5 millimeters; The smart casting of metal vacuum that employing can be planted human body is made into integration, and also can adopt to forge to be made into integration.
Claims (2)
1, the outer cup of a kind of artificial hip joint metal acetabular bone, include the outer cup of artificial hip joint metal acetabular bone that outer cup in basis (1) and positioning and fixing thorn (2) disjunctor is formed, it is characterized in that disjunctor is made several positioning and fixing on the spherical outside surface of the outer cup in basis (1) of the outer cup of artificial hip joint metal acetabular bone to sting (2).
2, the outer cup of artificial hip joint metal acetabular bone according to claim 1, outside the described basis of its feature on the spherical outside surface of cup (1) disjunctor make several positioning and fixing thorns (2), (2) can for pointed cone type or dome-type or other protrude in the shape of basis outer cup outer surface and the cone angle of (2) is 0.01 degree～150 degree; Positioning and fixing thorn (2) highly is: the centre of sphere with cup outside the basis is a benchmark, greater than 0.5～30 millimeter of cup spherical radius outside the basis; Positioning and fixing thorn (2) diameter is 1～15 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320118382 CN2657614Y (en) | 2003-11-24 | 2003-11-24 | Metal acetabulum outer cup of artificial hip joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320118382 CN2657614Y (en) | 2003-11-24 | 2003-11-24 | Metal acetabulum outer cup of artificial hip joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2657614Y true CN2657614Y (en) | 2004-11-24 |
Family
ID=34347280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320118382 Expired - Fee Related CN2657614Y (en) | 2003-11-24 | 2003-11-24 | Metal acetabulum outer cup of artificial hip joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2657614Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665960A (en) * | 2015-02-15 | 2015-06-03 | 张洋 | Orthopedic prosthesis for proximal radioulnar joint fusion |
-
2003
- 2003-11-24 CN CN 200320118382 patent/CN2657614Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665960A (en) * | 2015-02-15 | 2015-06-03 | 张洋 | Orthopedic prosthesis for proximal radioulnar joint fusion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041124 Termination date: 20111124 |