CN201642272U - Cover type positioning head catcher - Google Patents
Cover type positioning head catcher Download PDFInfo
- Publication number
- CN201642272U CN201642272U CN2010201629145U CN201020162914U CN201642272U CN 201642272 U CN201642272 U CN 201642272U CN 2010201629145 U CN2010201629145 U CN 2010201629145U CN 201020162914 U CN201020162914 U CN 201020162914U CN 201642272 U CN201642272 U CN 201642272U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- tapered rod
- rod
- cambered surface
- surface cover
- 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 relates to the technical field of medical appliances, in particular to a cover type positioning head catcher comprising a tapered rod, a sleeve, a cambered cover and water resistant sand paper, wherein the tapered rod is a T-shaped rod body formed by a cross rod and a vertical rod, and the lower end of the vertical rod of the tapered rod is in a cone shape; the vertical rod of the tapered rod is positioned in the sleeve and is in a movable fit with the sleeve; the lower end of the sleeve is provided with the cambered cover integrated with the sleeve into a whole, and the cambered cover is a spherical stainless steel casing; the shaft axis of the sleeve is in the position of the normal line of a sphere of the cambered cover; and water resistant sand paper No.800 is pasted to the lower surface of the cambered cover, and the sand surface of the water resistant sand paper faces the outside. The utility model can ensure that when force is applied to the tapered rod, the action force is perpendicular to the surface of whirlbone without slippage so that the safety during operation is greatly improved and the operation efficiency is increased.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of bell-type location head extractor.
Background technology
Carrying out the head extractor that the artificial hip joint replacing operation is adopted, be the taper thing of T font.In taking out the capital process of patient's pathological changes, since the femoral head spheroidal, smooth surface, apex point be pierced in the bone is a very difficult thing, if careless manipulation generation slippage, the awl point can damage acetabular bone, causes new damage to the patient.
The utility model content
This utility model provides a kind of bell-type location head extractor with good location function for solving the deficiencies in the prior art.
The scheme that solves this utility model technical problem is: bell-type location head extractor is made of tapered rod, sleeve, cambered surface cover and water-proof abrasive paper.Tapered rod is the rhabodoid of the T font that is made of cross bar and montant, and the montant lower end of tapered rod is a cone shape.The montant of tapered rod is in the sleeve and with sleeve and is in active relationship.Telescopic lower end is the cambered surface cover that is combined as a whole with sleeve, and cambered surface cover is the Stainless Steel Shell of sphere shape.Telescopic axial line is in the method line position of the sphere of cambered surface cover.The lower surface of cambered surface cover posts No. 800 water-proof abrasive paper, outside the sand of water-proof abrasive paper faces.
Adopt such scheme, can receive following effect:
During use, earlier cambered surface cover is covered in the femoral head surface of pathological changes, and hold sleeve with left hand and exerted pressure in the femoral head surface, reuse power is inserted the tip of tapered rod in the femoral head, because No. 800 water-proof abrasive paper has extremely strong coefficient of friction, and telescopic axial line is in the sphere method line position of cambered surface cover, so just guaranteed that tapered rod is when the application of force, active force is perpendicular to the femoral head surface and slippage can not take place, compared with prior art, safety when having improved operation has greatly improved operation efficient, has also reduced the difficulty of operation.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model.
Among the figure: 1. tapered rod 2. sleeves 3. cambered surface cover 4. water-proof abrasive papers
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Bell-type location head extractor is made of tapered rod 1, sleeve 2, cambered surface cover 3 and water-proof abrasive paper 4.Tapered rod 1 is the rhabodoid of the T font that is made of cross bar and montant, and the montant lower end of tapered rod 1 is a cone shape.The montant of tapered rod 1 is in the sleeve 2 and with sleeve 2 and is in active relationship.The lower end of sleeve 2 is the cambered surface cover 3 that are combined as a whole with sleeve 2, and cambered surface cover 3 is the Stainless Steel Shell of sphere shape.The axial line of sleeve 2 is in the method line position of the sphere of cambered surface cover 3.The lower surface of cambered surface cover 3 posts No. 800 water-proof abrasive paper 4, outside the sand of water-proof abrasive paper 4 faces.
Claims (1)
1. a bell-type is located head extractor, constitute by tapered rod, sleeve, cambered surface cover and water-proof abrasive paper, it is characterized in that: tapered rod is the rhabodoid of the T font that is made of cross bar and montant, the montant lower end of tapered rod is a cone shape, the montant of tapered rod is in the sleeve and with sleeve and is in active relationship, telescopic lower end is the cambered surface cover that is combined as a whole with sleeve, cambered surface cover is the Stainless Steel Shell of sphere shape, telescopic axial line is in the method line position of the sphere of cambered surface cover, the lower surface of cambered surface cover posts No. 800 water-proof abrasive paper, outside the sand of water-proof abrasive paper faces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201629145U CN201642272U (en) | 2010-04-13 | 2010-04-13 | Cover type positioning head catcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201629145U CN201642272U (en) | 2010-04-13 | 2010-04-13 | Cover type positioning head catcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201642272U true CN201642272U (en) | 2010-11-24 |
Family
ID=43107457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201629145U Expired - Fee Related CN201642272U (en) | 2010-04-13 | 2010-04-13 | Cover type positioning head catcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201642272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101828948A (en) * | 2010-04-13 | 2010-09-15 | 成都云杉科技有限公司 | Slip resistant femoral head extirpator |
-
2010
- 2010-04-13 CN CN2010201629145U patent/CN201642272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101828948A (en) * | 2010-04-13 | 2010-09-15 | 成都云杉科技有限公司 | Slip resistant femoral head extirpator |
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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: 20101124 Termination date: 20110413 |