US5078724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scalpel
Assignee: Individual
•
Filing: 1989-12-14
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Granted: 1992-01-07
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Expires: 2009-12-14
Abstract
Abstract In a scalpel having a disposable blade and a handle for retaining the blade, the disposable blade is provided on its rear end portion with at least one tongue piece which can be held with a tool such as a needle holder or forceps. The replacement of the blade with another can be easily and promptly carried out while holding the tongue piece with the tool even in the midst of the surgical operation, so that the blades of various types different in shape can be properly used for each purpose.
Inventors
- 👤 Haruo Takase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/32053; A61B17/3209; A61B17/3211; A61B17/3213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A scalpel, which comprises: a laterally curved disposable blade formed in a substantially semicylindrical shape having a substantially arcuate cross section; and a handle having a leading end portion with a fitting hole bored lengthwise therein for permitting said disposable blade to be inserted thereinto, said disposable blade having a rear end portion with at least one tongue piece extending outward for being held with a tool wherein said at least one tongue piece has at least one surface with fine notches formed by knurling.
Claim 2
Dependent Claim
85 words
A scalpel, which comprises: a laterally curved disposable blade formed in a substantially semicylindrical shape having a substantially arcuate cross section; and a handle having a leading end portion with a fitting hole bored lengthwise therein for permitting said disposable blade to be inserted thereinto, said disposable blade having a rear end portion with at least one tongue piece extending outward for being held with a tool wherein said at least one tongue piece has at least one surface with fine notches formed by knurling.
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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |