CN101828948A - Slip resistant femoral head extirpator - Google Patents
Slip resistant femoral head extirpator Download PDFInfo
- Publication number
- CN101828948A CN101828948A CN 201010149452 CN201010149452A CN101828948A CN 101828948 A CN101828948 A CN 101828948A CN 201010149452 CN201010149452 CN 201010149452 CN 201010149452 A CN201010149452 A CN 201010149452A CN 101828948 A CN101828948 A CN 101828948A
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- CN
- China
- Prior art keywords
- sleeve
- cambered surface
- surface cover
- rod
- tapered rod
- 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.)
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Abstract
The invention relates to the technical field of medical apparatus and instruments, and particularly relates to a slip resistant femoral head extirpator. The slip resistant femoral head extirpator comprises a tapered rod, a sleeve, a cambered surface cover and water-resistant abrasive paper, wherein the tapered rod is a T-shaped rod-shaped body formed by a cross rod and a vertical rod, and the lower end of the vertical rod of the tapered rod is of a cone shape; the vertical rod of the tapered rod is positioned in the sleeve and in dynamic matching relation with the sleeve; the lower end of the sleeve is the cambered surface cover integrating with the sleeve, and the cambered surface cover is a spherical stainless steel shell; the shaft axis of the sleeve is positioned on the normal line of the spherical surface of the cambered surface cover; the lower surface of the cambered surface cover is pasted with the water-resistant abrasive paper of model 800, and the sand surface of the water resistant abrasive paper faces outward. The invention can ensure that when the tapered rod applies force, the acting force is vertical to the surface of the femoral head without slipping, thereby greatly improving the safety during operation and improving the operation efficiency.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of slip resistant femoral head extirpator.
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.
Summary of the invention
The present invention provides a kind of slip resistant femoral head extirpator with good location function for solving the deficiencies in the prior art.
The scheme that solves the technology of the present invention problem is: slip resistant femoral head extirpator 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 invention.
Among the figure: 1. tapered rod 2. sleeves 3. cambered surface cover 4. water-proof abrasive papers
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Slip resistant femoral head extirpator 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. slip resistant femoral head extirpator, 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 |
|---|---|---|---|
| CN 201010149452 CN101828948A (en) | 2010-04-13 | 2010-04-13 | Slip resistant femoral head extirpator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010149452 CN101828948A (en) | 2010-04-13 | 2010-04-13 | Slip resistant femoral head extirpator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101828948A true CN101828948A (en) | 2010-09-15 |
Family
ID=42713272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010149452 Pending CN101828948A (en) | 2010-04-13 | 2010-04-13 | Slip resistant femoral head extirpator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101828948A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876810A (en) * | 2014-04-20 | 2014-06-25 | 赵全明 | Medical femoral head taking device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2420979Y (en) * | 2000-01-18 | 2001-02-28 | 陈皓 | Screw type intramedullary pin extracting device |
| CN101083944A (en) * | 2004-12-21 | 2007-12-05 | 史密夫和内修有限公司 | Distal femoral trial with removable cutting guide |
| US20080154270A1 (en) * | 2001-03-05 | 2008-06-26 | Haines Timothy G | Methods and apparatus for knee arthroplasty |
| CN201404240Y (en) * | 2009-05-05 | 2010-02-17 | 李程 | Medical femoral head taking-out device |
| CN201642272U (en) * | 2010-04-13 | 2010-11-24 | 成都云杉科技有限公司 | Cover type positioning head catcher |
-
2010
- 2010-04-13 CN CN 201010149452 patent/CN101828948A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2420979Y (en) * | 2000-01-18 | 2001-02-28 | 陈皓 | Screw type intramedullary pin extracting device |
| US20080154270A1 (en) * | 2001-03-05 | 2008-06-26 | Haines Timothy G | Methods and apparatus for knee arthroplasty |
| CN101083944A (en) * | 2004-12-21 | 2007-12-05 | 史密夫和内修有限公司 | Distal femoral trial with removable cutting guide |
| CN201404240Y (en) * | 2009-05-05 | 2010-02-17 | 李程 | Medical femoral head taking-out device |
| CN201642272U (en) * | 2010-04-13 | 2010-11-24 | 成都云杉科技有限公司 | Cover type positioning head catcher |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876810A (en) * | 2014-04-20 | 2014-06-25 | 赵全明 | Medical femoral head taking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100915 |