US4466539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical blade remover
Assignee: Individual
•
Filing: 1983-06-09
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Granted: 1984-08-21
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Expires: 2003-06-09
Abstract
Abstract A surgical blade remover for separating a surgical or scalpel blade from a handle or holder includes a single "vee" shaped slot or notch in a vertical standing plate for engaging the rear portion of the surgical blade upon the downward movement into the vee slot of the blade and the tang portion of the blade holder holding the blade, thereby wedging a portion of the blade against the sides of the vee forming the blade to be lifted off of the tang and ejected therefrom as the tang is moved further downwardly and withdrawn rearwardly out of the vee slot in a horizontal motion.
Inventors
- 👤 Christopher M. Frauenhoffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:38
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3217; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53683
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
71 words
A surgical plate remover for separating a surgical blade from a blade holder with spring action comprising: a plate; means for holding said plate in a relatively secured position; and a vee-shaped notch in an essentially flat section of said plate, said notch being to engage the sides of said blade at the heel portion thereof when said blade is inserted partially therethrough for springing said blade off of said holder.
Claim 2
Dependent Claim
71 words
A surgical plate remover for separating a surgical blade from a blade holder with spring action comprising: a plate; means for holding said plate in a relatively secured position; and a vee-shaped notch in an essentially flat section of said plate, said notch being to engage the sides of said blade at the heel portion thereof when said blade is inserted partially therethrough for springing said blade off of said holder.
Claim 3
Dependent Claim
23 words
The blade remover of claim 1 wherein said plate is an upstanding plate; and wherein said vee-shaped notch is in said upstanding plate.
Claim 4
Dependent Claim
20 words
The blade remover of claim 1 wherein said vee-shaped notch extends from the top edge of said upstanding plate downwardly.
Claim 5
Dependent Claim
20 words
The blade remover of claim 2 wherein said vee-shaped notch has an included angle of about from 3° to 45°.
Claim 6
Dependent Claim
14 words
The blade remover of claim 3 wherein said vee-shaped notch is approximately 13/4" deep.
Claim 7
Dependent Claim
17 words
The blade remover of claim 4 wherein said vee-shaped notch has an included angle of approximately 33°.
Claim 8
Dependent Claim
21 words
The blade remover of claim 1 wherein said upstanding plate holding means is a base plate welded to said upstanding plate.
Claim 9
Dependent Claim
23 words
The blade remover of claim 6 wherein said base plate and upstanding plate are welded with an included angle of 70° to 85°.
Claim 10
Dependent Claim
74 words
The blade remover of claim 1 wherein said upstanding plate holding means includes a collection box having: a bottom side; a rear face; a right and left sides; and U-shaped guides extending vertically one each along the front end of each of said right and left sides on the inside thereof, parallel and facing one another; wherein said upstanding plate is held vertically by said U-shaped guides as the front face of said box.
Claim 11
Dependent Claim
114 words
The blade remover of claim 1 wherein said upstanding plate holding means includes a collection box having: a bottom side; a rear face; a right and left sides; an inwardly projecting lip extending vertically along the front edge of each of said right and left sides; a top plate being slightly shorter than said bottom side and leaving a space at the front of said box; and a bumper block on the inner face of said bottom side near said front and slightly positioned therefrom; wherein said upstanding plate is held vertically in position as the front face of said box by nesting against said pair of lips, said block and said top plate.
Claim 12
Independent Claim
148 words
A method of separating a surgical blade from a blade holder, said blade having a center longitudinal slot engaging a foot mounted on a tang projecting from said holder handle, wherein the heel portion of said blade extends beyond the sides of the tang and foot, comprising the steps of: establishing a vee-shaped notch in a plate; inserting said blade and holder partially into said notch to wedge the sides said heel portion of said blade against the converging sides of said notch; drawing said handle and tang further into said notch toward the vertex thereof to create a torque on said blade emanating from said heel portion; and pulling said handle and tang rearwardly out of said notch freeing said blade from said tang to cause said blade to spring forward off of said tang and out of said notch under said torque created on said blade.
Claim 13
Independent Claim
148 words
A method of separating a surgical blade from a blade holder, said blade having a center longitudinal slot engaging a foot mounted on a tang projecting from said holder handle, wherein the heel portion of said blade extends beyond the sides of the tang and foot, comprising the steps of: establishing a vee-shaped notch in a plate; inserting said blade and holder partially into said notch to wedge the sides said heel portion of said blade against the converging sides of said notch; drawing said handle and tang further into said notch toward the vertex thereof to create a torque on said blade emanating from said heel portion; and pulling said handle and tang rearwardly out of said notch freeing said blade from said tang to cause said blade to spring forward off of said tang and out of said notch under said torque created on said blade.
Claim 14
Dependent Claim
64 words
The method of claim 11 wherein said blade longitudinal slot has a narrow portion contiguous with a wider portion, said wider portion being near said heel of said blade; wherein said step of rearward pulling of said handle and tang causes said blade slot wider portion to slide adjacent said tang thereby freeing said blade from said tang and permitting said spring forward movement.
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) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |