Patent US4719915A successfully refreshed from Google Patents.
US4719915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scalpel
Assignee: Individual
•
Filing: 1986-05-02
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Granted: 1988-01-19
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Expires: 2006-05-02
Abstract
Abstract A holder for a surgical blade comprising a handle and a detachable blade shield integrally formed with said handle, the blade shield including a member defining a sleeve into which the blade can be inserted after detachment of the shield from the handle.
Inventors
- 👤 Michael Porat
- 👤 Amir Porat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3215; A61B17/3217
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
220 words
A surgical instrument including a handle, a surgical blade mounted on said handle with a portion of the blade projecting from said handle, a blade shield extending from said handle, said blade shield underlying said blade and extending peripherally beyond the projecting portion of said blade, and frangible means integrally joining said shield with said handle for a selective manual breaking of said shield from said handle for an exposure of the projecting portion of said blade, said blade shield including sleeve means receivable over the projecting portion of said blade after detachment of the shield from the handle for a selective retention of the shield on said blade with said shield projecting peripherally beyond the projecting portion of said blade, said sleeve means including means for frictionally engaging and retaining said blade therein, said blade, prior to detachment of the shield from the handle, being external of said sleeve means, said shield being generally planar with first and second opposed generally parallel surfaces, said first surface being generally planar and immediately underlying said blade prior to detachment of said shield from said handle, said sleeve means being on said second surface remote from said blade prior to detachment of said shield whereby detachment and repositioning of said shield is required prior to reception of said blade in sleeve means.
Claim 2
Dependent Claim
220 words
A surgical instrument including a handle, a surgical blade mounted on said handle with a portion of the blade projecting from said handle, a blade shield extending from said handle, said blade shield underlying said blade and extending peripherally beyond the projecting portion of said blade, and frangible means integrally joining said shield with said handle for a selective manual breaking of said shield from said handle for an exposure of the projecting portion of said blade, said blade shield including sleeve means receivable over the projecting portion of said blade after detachment of the shield from the handle for a selective retention of the shield on said blade with said shield projecting peripherally beyond the projecting portion of said blade, said sleeve means including means for frictionally engaging and retaining said blade therein, said blade, prior to detachment of the shield from the handle, being external of said sleeve means, said shield being generally planar with first and second opposed generally parallel surfaces, said first surface being generally planar and immediately underlying said blade prior to detachment of said shield from said handle, said sleeve means being on said second surface remote from said blade prior to detachment of said shield whereby detachment and repositioning of said shield is required prior to reception of said blade in sleeve means.
Claim 3
Dependent Claim
26 words
A surgical instrument according to claim 1 and wherein said sleeve means is tapered to define the means for frictional engagement and retention of said blade.
Claim 4
Dependent Claim
22 words
A surgical instrument according to claim 2 and wherein said sleeve means is defined by a bridge member comprising a cross bar.
Claim 5
Dependent Claim
20 words
A surgical instrument according to claim 3 and wherein said cross bar is tapered for frictional engagement of said blade.
Claim 6
Dependent Claim
22 words
A surgical instrument according to claim 1 and wherein said sleeve means is defined by a bridge member comprising a cross bar.
Claim 7
Dependent Claim
20 words
A surgical instrument according to claim 5 and wherein said cross bar is tapered for frictional engagement of said blade.
Claim 8
Dependent Claim
20 words
A surgical instrument according to claim 1 and wherein said shield defines a pocket for accomodating said blade after detaching.
Claim 9
Dependent Claim
33 words
An instrument as in any of claims 1, 2, 5, 3, 6, 4 or 7 and further defining a peripheral flange about said blade shield on the same surface as the sleeve means.
Claim 10
Dependent Claim
19 words
A surgical instrument as claimed in claim 1 and wherein said sleeve means is adapted to protect said blade.
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) | 1991-01-18 | 1991-07-20 | 1992-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-18 | 1995-07-20 | 1996-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-18 | 1999-07-20 | 2000-01-19 | $7700.00 | Window Closed / Lapsed |