US4736842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protector for surgical knife
Assignee: Individual
•
Filing: 1987-03-06
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Granted: 1988-04-12
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Expires: 2007-03-06
Abstract
Abstract A protector for a surgical knife having an edge portion and a stem portion is disclosed. The protector is formed by a mold of synthetic resin and comprises a base plate having a peripheral shape substantially corresponding to a peripheral configuration of the edge portion of the knife, an upright ridge formed along a periphery of the base plate except for a portion through which the stem portion of the knife fit in the protector extends, and at least one projection formed on the base plate at a position at which a hole formed in the stem portion of the knife situates upon fitting the knife in the protector.
Inventors
- 👤 Tsuyoshi Uetake
- 👤 Iwao Ueno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:34
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3215; B; B26; B26B; B26B29/00; B26B29/02; B26B29/025
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
112 words
A protector for a surgical knife having an edge portion and a stem portion including at least one hole comprising a base plate having a peripheral shape substantially corresponding to that of the edge portion of the surgical knife; a ridge portion formed along a periphery of the base plate except for the portion of the periphery of the base plate in which the stem portion of the surgical knife situates when said surgical knife is placed in the protector; and at least one projection formed on and projecting from the base plate, said projection being adapted to be inserted into a hole formed in the stem portion of the surgical knife.
Claim 2
Dependent Claim
112 words
A protector for a surgical knife having an edge portion and a stem portion including at least one hole comprising a base plate having a peripheral shape substantially corresponding to that of the edge portion of the surgical knife; a ridge portion formed along a periphery of the base plate except for the portion of the periphery of the base plate in which the stem portion of the surgical knife situates when said surgical knife is placed in the protector; and at least one projection formed on and projecting from the base plate, said projection being adapted to be inserted into a hole formed in the stem portion of the surgical knife.
Claim 3
Dependent Claim
21 words
A protector according to claim 1, wherein said base plate, a ridge portion and projection are integrally formed of synthetic resin.
Claim 4
Dependent Claim
27 words
A protector according to claim 2, wherein said base plate further comprises an edge receiving portion which projects slightly from a remaining portion of the base plate.
Claim 5
Dependent Claim
33 words
A protector according to claim 1, wherein a top portion of said projection has a slit formed therein so that said top portion may resiliently engage said hole formed in said stem portion.
Claim 6
Dependent Claim
19 words
A protector according to claim 4, wherein said slit is aligned with the longitudinal axis of the surgical knife.
Claim 7
Dependent Claim
27 words
A protector according to claim 1, further comprising a snap portion having an anti-slip surface, said snap portion being formed at a rear portion of the protector.
Claim 8
Dependent Claim
39 words
A protector according to claim 1, further comprising a base plate extension integrally formed with and extending from the base plate, said base plate extension extending in parallel with and coincidental to the stem portion of the surgical knife.
Claim 9
Dependent Claim
38 words
A protector according to claim 7, further comprising a second projection formed on said base plate extension, said second projection being adapted to be inserted into a second hole formed in the stem portion of the surgical knife.
Claim 10
Dependent Claim
40 words
A protector according to claim 1, further comprising a lid-like plate formed at a front end portion of the base plate which together with said base plate defines a cavity adapted to receive said edge portion of said surgical knife.
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) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |