US3554192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medullary space drill
Assignee: Orthopedic Equipment Co Inc
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Filing: 1968-07-23
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Granted: 1971-01-12
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Expires: 1988-07-23
Abstract
Abstract The invention relates to a medullary space drill including a flexible shaft carrying at its opposite ends respectively a drill head, and an adapter piece adapted to be connected for rotation with a driving means. The shaft comprises a plurality of parallel flexible elements arranged to provide a central passage for receiving an elongated guide element.
Inventors
- 👤 Dietmar R Isberner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:16
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/164; A61B17/1613; A61B17/1615; A61B17/1617; Y; Y10; Y10T; Y10T408/00; Y10T408/65; Y10T408/665; Y10T408/89; Y10T408/892; Y10T408/8923
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A medullary space drill including a flexible shaft carrying at its opposite ends respectively a drill head having an axial bore therethrough, and an adapter piece for connection to a drive shaft whereby said drill may be rotated, said adapter piece having an axial bore therethrough, at least a portion of said flexible shaft being formed of a plurality of parallel, flexible individual elements extending between said drill head and said adapter piece, said individual elements being arranged to provide a central passage which together with the bores in said drill head and adapter piece is adapted to receive an elongated guide element.
Claim 2
Dependent Claim
103 words
A medullary space drill including a flexible shaft carrying at its opposite ends respectively a drill head having an axial bore therethrough, and an adapter piece for connection to a drive shaft whereby said drill may be rotated, said adapter piece having an axial bore therethrough, at least a portion of said flexible shaft being formed of a plurality of parallel, flexible individual elements extending between said drill head and said adapter piece, said individual elements being arranged to provide a central passage which together with the bores in said drill head and adapter piece is adapted to receive an elongated guide element.
Claim 3
Dependent Claim
18 words
The medullary space drill according to claim 1, wherein said individual elements are positioned in an annular assembly.
Claim 4
Dependent Claim
16 words
The medullary space drill according to claim 1 wherein said individual elements have circular cross sections.
Claim 5
Dependent Claim
24 words
The medullary space drill according to claim 1 wherein said individual elements are welded to the drill head and to said adapter piece respectively.
Claim 6
Dependent Claim
23 words
The medullary space drill according to claim 1 wherein said individual elements are soldered to said drill head and said adapter piece respectively.
References Cited (Backward Citations)
US2747384A
Cited
US2905178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |