US5454815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone rasp made of plastics
Assignee: IMT Integral Medizintechnik AG
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Filing: 1994-08-22
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Granted: 1995-10-03
•
Expires: 2014-08-22
Abstract
Abstract A bone rasp for the working of bones said rasp having a plastic toothed working section with teeth and cutting edges and a connecting section, optionally made of plastic, for connecting the rasp to an impact tool. This rasp can be manufactured inexpensively, making possible one-time use and thereby making cleaning and sterilization of the used rasp unnecessary.
Inventors
- 👤 Albert Geisser
- 👤 Hubertus Becker
- 👤 Heinz Elmiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1659; A61B18/00; A61B2018/00005; A61B2018/00011; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
193 words
A surgical bone rasp for the surgical working of bone material by oscillating movement of said bone rasp for preparing a bone to receive a prosthesis, said surgical bone rasp comprising: a toothed, elongate working section having teeth with cutting edges, said teeth extending from a distal end to a proximal end of said working section, and a connecting section arranged at said proximal end for the connection of said bone rasp to an impact tool, wherein said toothed working section including said teeth and cutting edges is made of only plastic or carbon fiber reinforced plastic material, and wherein said toothed, elongate working section is provided with a longitudinally extending bore with a distal and proximal end, said bore being open at the distal end of said working section and being open at the proximal end of said working section, and said connecting section is arranged at an angle to said longitudinal bore at said proximal end of said working section such that the proximal end opening of said bore in said working section is connectable to a flushing and suction line when said connecting section is connected to an impact tool.
Claim 2
Dependent Claim
193 words
A surgical bone rasp for the surgical working of bone material by oscillating movement of said bone rasp for preparing a bone to receive a prosthesis, said surgical bone rasp comprising: a toothed, elongate working section having teeth with cutting edges, said teeth extending from a distal end to a proximal end of said working section, and a connecting section arranged at said proximal end for the connection of said bone rasp to an impact tool, wherein said toothed working section including said teeth and cutting edges is made of only plastic or carbon fiber reinforced plastic material, and wherein said toothed, elongate working section is provided with a longitudinally extending bore with a distal and proximal end, said bore being open at the distal end of said working section and being open at the proximal end of said working section, and said connecting section is arranged at an angle to said longitudinal bore at said proximal end of said working section such that the proximal end opening of said bore in said working section is connectable to a flushing and suction line when said connecting section is connected to an impact tool.
Claim 3
Dependent Claim
27 words
Bone rasp according to claim 1, wherein said connecting section is made of only plastic material, which plastic material may be a carbon fiber reinforced plastic material.
Claim 4
Dependent Claim
21 words
Bone rasp according to claim 1, wherein said working section is provided with zones having each different inclination of said toothing.
Claim 5
Dependent Claim
29 words
Bone rasp according to claim 1, wherein said working section is provided with a broad side and a narrow side, said narrow side being provided with a double toothing.
Claim 6
Dependent Claim
15 words
Bone rasp according to claim 1, wherein said plastic material is a polycarbonate plastic material.
Claim 7
Dependent Claim
15 words
Bone rasp according to claim 1, wherein said plastic material is a polyoxymethylene plastic material.
Claim 8
Dependent Claim
197 words
A surgical bone rasp for the surgical working of bone material by oscillating movement of said bone rasp for preparing a bone to receive a prosthesis, said surgical bone rasp comprising: a toothed, elongate working section having teeth with cutting edges, said teeth extending from a distal end to a proximal end of said working section, and a connecting section arranged at said proximal end for the connection of said bone rasp to an impact tool, wherein said toothed working section including said teeth and cutting edges and said connecting section are made of only plastic or carbon fiber reinforced plastic material, and wherein said toothed, elongate working section is provided with a longitudinally extending bore with a distal and proximal end, said bore being open at the distal end of said working section and being open at the proximal end of said working section, and said connecting section is arranged at an angle to said longitudinal bore at said proximal end of said working section such that the proximal end opening of said bore in said working section is connectable to a flushing and suction line when said connecting section is connected to an impact tool.
Claim 9
Dependent Claim
197 words
A surgical bone rasp for the surgical working of bone material by oscillating movement of said bone rasp for preparing a bone to receive a prosthesis, said surgical bone rasp comprising: a toothed, elongate working section having teeth with cutting edges, said teeth extending from a distal end to a proximal end of said working section, and a connecting section arranged at said proximal end for the connection of said bone rasp to an impact tool, wherein said toothed working section including said teeth and cutting edges and said connecting section are made of only plastic or carbon fiber reinforced plastic material, and wherein said toothed, elongate working section is provided with a longitudinally extending bore with a distal and proximal end, said bore being open at the distal end of said working section and being open at the proximal end of said working section, and said connecting section is arranged at an angle to said longitudinal bore at said proximal end of said working section such that the proximal end opening of said bore in said working section is connectable to a flushing and suction line when said connecting section is connected to an impact tool.
Claim 10
Dependent Claim
21 words
Bone rasp according to claim 7, wherein said working section is provided with zones having each different inclination of said toothing.
Claim 11
Dependent Claim
29 words
Bone rasp according to claim 7, wherein said working section is provided with a broad side and a narrow side said narrow side being provided with a double toothing.
Claim 12
Dependent Claim
15 words
Bone rasp according to claim 7, wherein said plastic material is a polycarbonate plastic material.
Claim 13
Dependent Claim
15 words
Bone rasp according to claim 7, wherein said plastic material is a polyoxymethylene plastic material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |