US5752968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guarded surgical scalpel with scalpel blade remover
Assignee: General Electric Co
•
Filing: 1995-01-27
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Granted: 1998-05-19
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Expires: 2015-01-27
Abstract
Abstract This invention relates to an improved guarded surgical scalpel having a movable guard that can be retracted to expose the blade and that can be extended to cover the sharp cutting edge of the blade. The guard is telescopically mounted inside the blade handle and includes a deflectable top wall portion that holds a detent pin or that defines a radially extending flange. This detent pin or flange engages a slot having upturned ends that is formed in at least one side wall of the blade handle. The detent pin or flange is biased upwardly into the upturned ends of the slot to hold the guard in the retracted or extended position. The blade can include a tang having a notch formed therein. The distal end of one sidewall of the guard can be formed with a complementary notch such that when the distal end of the sidewall of the guard engages the proximal end of the blade, forward movement of the guard forces the blade off of the scalpel. A wedge mechanism is provided to urge the proximal end of the blade away from a blade carrier into engagement with the distal end of the sidewall of the guard.
Inventors
- 👤 Neil Jolly
- 👤 Craig D. Newman
- 👤 Robert W. Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:10
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3213; A61B2017/32113
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
89 words
A guarded surgical scalpel body for use with a surgical blade, comprising: a handle having a proximal end and a distal end; a guard operably connected to the handle for longitudinal movement with respect to the handle; a blade carrier defining a plane extending from the distal end of the handle; and an arm having a distal end and being connected to the blade carrier by a flexural hinge to move toward and away from the blade carrier in a plane co-planar with the plane of the blade carrier.
Claim 2
Dependent Claim
89 words
A guarded surgical scalpel body for use with a surgical blade, comprising: a handle having a proximal end and a distal end; a guard operably connected to the handle for longitudinal movement with respect to the handle; a blade carrier defining a plane extending from the distal end of the handle; and an arm having a distal end and being connected to the blade carrier by a flexural hinge to move toward and away from the blade carrier in a plane co-planar with the plane of the blade carrier.
Claim 3
Dependent Claim
19 words
The guarded surgical scalpel body of claim 1 further comprising a wedge at the distal end of the arm.
Claim 4
Dependent Claim
32 words
The guarded surgical scalpel body of claim 2 wherein the wedge defines a first shoulder with the arm and the blade carrier defines a second shoulder for engagement with the first shoulder.
Claim 5
Dependent Claim
34 words
The guarded surgical scalpel of claim 2 further comprising a blade mounted to the blade carrier such that movement of the arm toward the blade carrier urges the blade away from the blade carrier.
Claim 6
Dependent Claim
32 words
The guarded surgical scalpel of claim 4 wherein the blade includes a proximal end with a notch formed therein and the guard includes a distal end with a complementary notch formed therein.
Claim 7
Dependent Claim
32 words
The guarded surgical scalpel body of claim 4 wherein the wedge defines a first shoulder with the arm and the blade carrier defines a second shoulder for engagement with the first shoulder.
Claim 8
Dependent Claim
34 words
The guarded surgical scalpel body of claim 1 comprising a blade mounted to the blade carrier such that movement of the arm toward the blade carrier urges the blade away from the blade carrier.
Claim 9
Dependent Claim
32 words
The guarded surgical scalpel of claim 7 wherein the blade includes a proximal end with a notch formed therein and the guard includes a distal end with a complementary notch formed therein.
Claim 10
Dependent Claim
108 words
A guarded surgical scalpel body for use with a surgical blade, comprising: a handle having a proximal end and a distal end; a guard operably connected to the handle for longitudinal movement along a longitudinal axis of the handle; a blade carrier defining a plane extending from the distal end of the handle; and an arm having a distal end and being operatively connected to the handle and adapted for movement in a direction which is perpendicular to said longitudinal axis and in a plane which is coplanar with the plane of the blade carrier so that the arm moves adjacent to and away from the blade carrier.
Claim 11
Dependent Claim
108 words
A guarded surgical scalpel body for use with a surgical blade, comprising: a handle having a proximal end and a distal end; a guard operably connected to the handle for longitudinal movement along a longitudinal axis of the handle; a blade carrier defining a plane extending from the distal end of the handle; and an arm having a distal end and being operatively connected to the handle and adapted for movement in a direction which is perpendicular to said longitudinal axis and in a plane which is coplanar with the plane of the blade carrier so that the arm moves adjacent to and away from the blade carrier.
Claim 12
Dependent Claim
19 words
The guarded surgical scalpel body of claim 9 further comprising a wedge at the distal end of the arm.
Claim 13
Dependent Claim
81 words
The guarded surgical scalpel body of claim 10 wherein the wedge defines a first shoulder with the arm and the blade carrier defines a second shoulder for engagement with the first shoulder to releasably retain the wedge in the position adjacent to the blade carrier against a bias of the arm wherein a distal movement of the guard disengages the first shoulder from the second shoulder and allows the arm to move away from the blade carrier to an unbiased position.
Claim 14
Dependent Claim
36 words
The guarded surgical scalpel body of claim 10 further comprising a blade mounted to the blade carrier such that movement of the arm adjacent to the blade carrier urges the blade away from the blade carrier.
Claim 15
Dependent Claim
33 words
The guarded surgical scalpel body of claim 12 wherein the blade includes a proximal end with a notch formed therein and the guard includes a distal end with a complementary notch formed therein.
Claim 16
Dependent Claim
32 words
The guarded surgical scalpel body of claim 12 wherein the wedge defines a first shoulder with the arm and the blade carrier defines a second shoulder for engagement with the first shoulder.
Claim 17
Dependent Claim
36 words
The guarded surgical scalpel body of claim 9 further comprising a blade mounted to the blade carrier such that movement of the arm adjacent to the blade carrier urges the blade away from the blade carrier.
Claim 18
Dependent Claim
33 words
The guarded surgical scalpel body of claim 15 wherein the blade includes a proximal end with a notch formed therein and the guard includes a distal end with a complementary notch formed therein.
References Cited (Backward Citations)
US1914153A
Cited
US2039443A
Cited
US2885780A
Cited
DE1134793B
Cited
US3706106A
Cited
US3943627A
Cited
US3905101A
Cited
US3906626A
Cited
US4091537A
Cited
US4393587A
Cited
US4414974A
Cited
US4516575A
Cited
US4491132A
Cited
US4576164A
Cited
US4523379A
Cited
US4757612A
Cited
US4719915A
Cited
US4735202A
Cited
US4790312A
Cited
DE3722899A1
Cited
US5071426A
Cited
US5139507A
Cited
US4985034A
Cited
WO1991003984A1
Cited
US5141517A
Cited
US5292330A
Cited
DE4040909A1
Cited
US5258001A
Cited
US5336176A
Cited
US5299357A
Cited
US5309641A
Cited
US5417704A
Cited
US5275606A
Cited
US5496340A
Cited
US5250063A
Cited
US5411512A
Cited
US5207696A
Cited
US5201748A
Cited
US5312429A
Cited
US5330492A
Cited
US5330493A
Cited
US5292329A
Cited
US5330494A
Cited
US5344424A
Cited
US5342379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-18 | 2001-11-17 | 2002-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-18 | 2005-11-17 | 2006-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-18 | 2009-11-17 | 2010-05-19 | $7700.00 | Window Closed / Lapsed |