US3750671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical cutting tool adapter apparatus
Assignee: 3M Co
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Filing: 1971-03-31
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Granted: 1973-08-07
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Expires: 1991-03-31
Abstract
Abstract An adapter apparatus for a cutting tool to permit only transverse cutting movement wherein the attaching section of the adapter apparatus includes a plurality of longitudinal slits, a friction washer located about the slits, a wedging sleeve being adjustably movable into contact with the friction washer to vary the diameter of the attaching section.
Inventors
- 👤 J Hedrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:06
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/16; A61B17/1695
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
117 words
A surgical tool assembly including a combination providing a frictional connection between a first member and the end of a second member having a generally longitudinal configuration, comprising: portions of the first member defining at least a pair of slits extending longitudinally on the first and second members; a sleeve movable on the first member to force the portions of the first member into the second member to form a frictional connection therebetween; a washer disposed between the sleeve and the portions of the first member and having characteristics providing a coefficient of friction between the sleeve and the first member less than the coefficient of friction between the sleeve and the portions of the first member.
Claim 2
Dependent Claim
117 words
A surgical tool assembly including a combination providing a frictional connection between a first member and the end of a second member having a generally longitudinal configuration, comprising: portions of the first member defining at least a pair of slits extending longitudinally on the first and second members; a sleeve movable on the first member to force the portions of the first member into the second member to form a frictional connection therebetween; a washer disposed between the sleeve and the portions of the first member and having characteristics providing a coefficient of friction between the sleeve and the first member less than the coefficient of friction between the sleeve and the portions of the first member.
Claim 3
Dependent Claim
44 words
The combination recited in claim 1 wherein portions of the sleeve define a wedge which is movable in a first direction to engage the washer and further movable in the first direction to force the portions of the first member into the second member.
Claim 4
Dependent Claim
31 words
The combination recited in claim 1 wherein said first member is in a fixed relationship to said second member, and said sleeve being received in threaded engagement over said first member.
Claim 5
Dependent Claim
34 words
The combination recited in claim 1 wherein said washer is split to permit contraction of the free ends thereof as the portion of said first member moves into frictional connection with said second member.
Claim 6
Dependent Claim
24 words
The combination recited in claim 1 wherein said first member is an adapter including a foot at the end thereof remote from said sleeve.
Claim 7
Dependent Claim
12 words
The combination recited in claim 1 wherein said washer is of polytetrafluoroethylene.
Claim 8
Dependent Claim
14 words
The combination recited in claim 1 wherein said washer is trapezoidal in cross-sectional shape.
Claim 9
Dependent Claim
46 words
The combination recited in claim 5 wherein first member includes means forming a body portion over which said sleeve is positioned, said foot extending from said body member remote from said slits, and means in said body member forming an aperture for receiving a tool element.
Claim 10
Dependent Claim
35 words
The combination recited in claim 1 wherein said first member includes means forming a body portion over which sleeve is positioned, and means in said body member forming an aperture for receiving a tool element.
Claim 11
Dependent Claim
26 words
The combination recited in claim 1 wherein said washer is disposed in a substantially fixed relationship with respect to the said portions of said first member.
Claim 12
Dependent Claim
27 words
The combination recited in claim 2 the surface of said washer facing said sleeve is inclined to cooperate with the portion of said sleeve defining said wedge.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |