Patent US4657012A successfully refreshed from Google Patents.
US4657012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument with incorporated lighting system
Assignee: Individual
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Filing: 1985-04-01
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Granted: 1987-04-14
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Expires: 2005-04-01
Abstract
Abstract A surgical instrument includes a blade, a handle supporting the blade, and a light source. The handle is constructed at least partially from a light-transmissive and optical waveguiding material and the light source directs light through the light-transmissive material to the blade to illuminate a field surrounding the blade to aid the surgeon using the instrument.
Inventors
- 👤 Kermit H. Burgin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3213; A61B90/00; A61B90/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
A surgical instrument comprising a handle having a long axis, a scalpel blade molded into one end of the handle, the handle being contoured to fit the hand of the user, a battery pack molded into the handle, a light source molded in the handle directly above the blade, the light source being angled downwardly relative to the long axis of the handle to direct light downwardly to illuminate a field around the scalpel blade.
Claim 2
Dependent Claim
75 words
A surgical instrument comprising a handle having a long axis, a scalpel blade molded into one end of the handle, the handle being contoured to fit the hand of the user, a battery pack molded into the handle, a light source molded in the handle directly above the blade, the light source being angled downwardly relative to the long axis of the handle to direct light downwardly to illuminate a field around the scalpel blade.
Claim 3
Dependent Claim
109 words
A surgical instrument comprising a blade assembly and an acrylooptic handle having a generally cylindrical side wall and a front face, the handle including a battery pack, a light source, and a keyhole-shaped cross-section opening in the front face and including a generally uniform width slot in the side wall, the blade assembly including a molded plastic portion providing a keyhole-shaped cross-section spine for engagement in the keyhole-shaped opening of the handle portion, and a scalpel blade molded to the plastic portion, the blade assembly being molded from an acrylooptic plastic for transferring light from the light source to radiate the light upon the field around the scalpel blade.
Claim 4
Dependent Claim
109 words
A surgical instrument comprising a blade assembly and an acrylooptic handle having a generally cylindrical side wall and a front face, the handle including a battery pack, a light source, and a keyhole-shaped cross-section opening in the front face and including a generally uniform width slot in the side wall, the blade assembly including a molded plastic portion providing a keyhole-shaped cross-section spine for engagement in the keyhole-shaped opening of the handle portion, and a scalpel blade molded to the plastic portion, the blade assembly being molded from an acrylooptic plastic for transferring light from the light source to radiate the light upon the field around the scalpel blade.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |