CN2855368Y - Double dynamic heads of artificial hip joint - Google Patents
Double dynamic heads of artificial hip joint Download PDFInfo
- Publication number
- CN2855368Y CN2855368Y CN 200520139806 CN200520139806U CN2855368Y CN 2855368 Y CN2855368 Y CN 2855368Y CN 200520139806 CN200520139806 CN 200520139806 CN 200520139806 U CN200520139806 U CN 200520139806U CN 2855368 Y CN2855368 Y CN 2855368Y
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- CN
- China
- Prior art keywords
- liner
- ring
- cup
- double
- doubleacting
- 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 artificial coxa joint double-acting head of the utility model relates to an artificial joint double-acting semi-coxa device. The structure comprises a double-acting cup, an inner line, a blocking ring; the inner liner mechanism is arranged in the double acting head cup; the double-acting head cup is provided with a dislocation prevention slot; the inner liner is provided with a dislocation prevention heave to match the dislocation prevention slot; the inner side of the double-acting head cup is provided with a plurality of dislocation prevention and rotation prevention heaves;the blocking ring is arranged in the inner liner, and the inner liner is provided with a clipping slot matching the blocking ring; a plurality of radial slots are arranged at the clipping end of the blocking ring and inner liner, and a clipping heave is arranged on the blocking ring matching the clipping slot on the inner liner. The blocking ring is an whole ring. During the production process the inner liner is assembled together with the double-acting head cup, the blocking ring is assembled in the inner line while using.
Description
Technical field
What this utility model double motion head of artificial hip joint related to is a kind of two moving half hip device of artificial hip joint.
Background technology
At present, half hip device of artificial hip joint has doubleacting cup, liner, pressure ring, and pressure ring and doubleacting cup are by being threaded, and connection reliability is lower, comes off easily in the use.The another kind of structure that adopts is pressure ring and liner integrative-structure, and inner lining elasticity engaging bulb is installed relatively difficulty, to the specification requirement height of operation in the operation process in operation process.Also have a kind of pressure ring to adopt hatch frame, in the use pressure ring wearing and tearing inhomogeneous, may come off after long-time the use.
Summary of the invention
The purpose of this utility model is to provide a kind of double motion head of artificial hip joint at above-mentioned weak point, adopt doubleacting cup, liner, the back-up ring structure, be provided with dislocation preventing slot in the doubleacting cup, liner is provided with the anti-avulsion projection and matches with dislocation preventing slot, can lock liner, prevent that liner from deviating from doubleacting cup, and be provided with several in the doubleacting cup inboard and prevent deviating from and anti-rotation projection, can prevent between liner and the doubleacting cup to produce fine motion and to produce wearing and tearing, and can prevent that liner from deviating from, back-up ring is a whole circle, be provided with several radial slots, increase back-up ring engaging elasticity, reduce the installed thrust in the operation process, be convenient to install, reduce operating time, long service life improves reliability, guarantees success rate of operation.
Double motion head of artificial hip joint takes following scheme to realize: the double motion head of artificial hip joint structure comprises doubleacting cup, liner, back-up ring, inner lining apparatus is in doubleacting cup, be provided with dislocation preventing slot in doubleacting cup, liner is provided with the anti-avulsion projection and matches with dislocation preventing slot.The doubleacting cup inboard is provided with several and prevents deviating from and anti-rotation projection, prevent that liner from deviating from and rotation, the back-up ring device is in liner, liner is provided with the snap-in groove with back-up ring, and back-up ring is a whole circle, non-hatch frame, be provided with several radial slots at back-up ring and liner fastening end, increase back-up ring engaging elasticity, and on back-up ring, also be provided with snap fit tabs, match with snap-in groove on the liner.
During production liner and doubleacting cup are assembled into one, during use back-up ring are assemblied in the liner and get final product.
The characteristics of double motion head of artificial hip joint: owing to be provided with dislocation preventing slot in the doubleacting cup, liner is provided with anti-avulsion projection and matches with dislocation preventing slot, can lock liner, prevents that liner from deviating from doubleacting cup.And be provided with several in the doubleacting cup inboard and prevent deviating from and anti-rotation projection, can prevent to produce fine motion between liner and the doubleacting cup and produce wearing and tearing, and can prevent that liner from deviating from, back-up ring is a whole circle, is provided with several radial slots, increases back-up ring engaging elasticity, reduce the installed thrust in the operation process, be convenient to install, reduce operating time, because back-up ring one whole circle, wearing and tearing have evenly increased the service life of back-up ring, prevent from that power increases simultaneously, improve reliability, guarantee success rate of operation.
Description of drawings
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is the double motion head of artificial hip joint structural representation.
Fig. 2 is the doubleacting cup sketch map of double motion head of artificial hip joint.
Fig. 3 is the back-up ring front view of double motion head of artificial hip joint.
Fig. 4 is the back-up ring left view of double motion head of artificial hip joint.
The specific embodiment
With reference to accompanying drawing 1～4, the double motion head of artificial hip joint structure comprises doubleacting cup 1, liner 2, back-up ring 4, liner 2 devices are in doubleacting cup 1, be provided with dislocation preventing slot 7 in the doubleacting cup 1, liner 2 is provided with anti-avulsion projection 8, match with dislocation preventing slot 7, be used to lock liner 2, prevent that liner 2 from deviating from doubleacting cup 1.And be provided with several in doubleacting cup 1 inboard and prevent deviating from and anti-rotation protruding 9, prevent that liner from deviating from and rotation, back-up ring 4 devices are in liner 2, liner 2 is provided with the snap-in groove 3 with back-up ring, and back-up ring 4 is a whole circle, non-hatch frame, be provided with several radial slots 6 in back-up ring 4 and liner 2 fastening ends, increase back-up ring engaging elasticity, and on back-up ring 4, also be provided with snap fit tabs 5, match with snap-in groove 3 on the liner.
Claims (2)
1, a kind of double motion head of artificial hip joint is characterized in that comprising doubleacting cup, liner, back-up ring; Inner lining apparatus is in doubleacting cup, in doubleacting cup, be provided with dislocation preventing slot, liner is provided with the anti-avulsion projection and matches with dislocation preventing slot, and be provided with several in the doubleacting cup inboard and prevent deviating from and anti-rotation projection, the back-up ring device is in liner, and liner is provided with the snap-in groove with back-up ring, is provided with several radial slots at back-up ring and liner fastening end, and on back-up ring, also be provided with snap fit tabs, match with snap-in groove on the liner.
2, double motion head of artificial hip joint according to claim 1 is characterized in that back-up ring is a whole circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139806 CN2855368Y (en) | 2005-12-15 | 2005-12-15 | Double dynamic heads of artificial hip joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139806 CN2855368Y (en) | 2005-12-15 | 2005-12-15 | Double dynamic heads of artificial hip joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2855368Y true CN2855368Y (en) | 2007-01-10 |
Family
ID=37598672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520139806 Expired - Fee Related CN2855368Y (en) | 2005-12-15 | 2005-12-15 | Double dynamic heads of artificial hip joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2855368Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252369A (en) * | 2017-02-27 | 2017-10-17 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN107252368A (en) * | 2017-03-01 | 2017-10-17 | 吴栋 | A kind of integral type double motion head and preparation method thereof |
| CN107252367A (en) * | 2017-02-28 | 2017-10-17 | 吴栋 | A kind of integral type double motion head and preparation method thereof |
| CN107261212A (en) * | 2017-02-28 | 2017-10-20 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN117959040A (en) * | 2024-03-29 | 2024-05-03 | 天津正天医疗器械有限公司 | Clasp and semi-hip joint replacement bipolar head device |
-
2005
- 2005-12-15 CN CN 200520139806 patent/CN2855368Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252369A (en) * | 2017-02-27 | 2017-10-17 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN107252367A (en) * | 2017-02-28 | 2017-10-17 | 吴栋 | A kind of integral type double motion head and preparation method thereof |
| CN107261212A (en) * | 2017-02-28 | 2017-10-20 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN107252368A (en) * | 2017-03-01 | 2017-10-17 | 吴栋 | A kind of integral type double motion head and preparation method thereof |
| CN117959040A (en) * | 2024-03-29 | 2024-05-03 | 天津正天医疗器械有限公司 | Clasp and semi-hip joint replacement bipolar head device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |