US4344532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical blade remover
Assignee: American Hospital Supply Corp
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Filing: 1980-08-11
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Granted: 1982-08-17
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Expires: 2000-08-11
Abstract
Abstract A surgical blade remover is disclosed having an essentially wedge-shaped support member which tapers from its front side to its back side. The support has one or more mutually parallel latitudinal slots open at one end and along their length extending from the front side of the support into its interior. The slots are sized to receive the tang of the blade holder while preventing the blade itself from passing therethrough. The surface of the support member bordering each slot is covered with an adhesive which holds the blade in place as the blade holder is pivoted downward in the slot away from the blade. When the hilt of the blade becomes detached from the holder, as a result of this pivoting action, the holder is withdrawn from the slot. The blade remains affixed to the adhesive on the support and is retained for its disposal.
Inventors
- 👤 John D. Eldridge, Jr.
- 👤 Milton W. Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:23
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3217
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
196 words
A device for removing a blade having an opening therethrough from a tang of a blade holder, said tang having an upraised projection which extends through said opening to mount said blade on said tang comprising: a support surface for supporting a blade flat against said surface; means defining an elongate channel open to said support surface and extending a substantial distance along said support surface, said channel being open at one end and having a width less than the width of said blade and more than the width of said tang, said channel being of sufficient depth to receive said tang with the end of said projection toward said channel open end disposed below said support surface while said blade is held flat against said support surface to permit said tang to be pressed down and pivoted away from said support surface and thereby released from said blade,; and means for holding the blade against said support surface when the tang is placed in said channel and pulled longitudinally relative to the blade out the open end of the channel after the blade is released from the tang but remains flat on said support surface.
Claim 2
Independent Claim
196 words
A device for removing a blade having an opening therethrough from a tang of a blade holder, said tang having an upraised projection which extends through said opening to mount said blade on said tang comprising: a support surface for supporting a blade flat against said surface; means defining an elongate channel open to said support surface and extending a substantial distance along said support surface, said channel being open at one end and having a width less than the width of said blade and more than the width of said tang, said channel being of sufficient depth to receive said tang with the end of said projection toward said channel open end disposed below said support surface while said blade is held flat against said support surface to permit said tang to be pressed down and pivoted away from said support surface and thereby released from said blade,; and means for holding the blade against said support surface when the tang is placed in said channel and pulled longitudinally relative to the blade out the open end of the channel after the blade is released from the tang but remains flat on said support surface.
Claim 3
Independent Claim
179 words
A device suitable for placement on a rigid surface for removing a blade from a tang of a blade holder comprising: a compressible sheet having front and back edges and upper and lower sides, said sheet having a latitudinal slot extending through the front edge of said sheet into its interior, said slot being open along the length thereof, said slot having a width greater than the width of said tang and less than the width of said blade; a substrate fixed to the lower side of said sheet and transversing said slot, said substrate having a compressibility less than said sheet, said front edge of the sheet having a sufficient height and said substrate having a sufficient rigidity to allow said tang to be detached from said blade by pivoting the holder downward away from the blade without the rigid surface interferring with said pivoting holder; means for holding the blade against said upper side of said sheet when the tang is placed within the slot and pulled longitudinally relative to the blade after the blade is released.
Claim 4
Independent Claim
179 words
A device suitable for placement on a rigid surface for removing a blade from a tang of a blade holder comprising: a compressible sheet having front and back edges and upper and lower sides, said sheet having a latitudinal slot extending through the front edge of said sheet into its interior, said slot being open along the length thereof, said slot having a width greater than the width of said tang and less than the width of said blade; a substrate fixed to the lower side of said sheet and transversing said slot, said substrate having a compressibility less than said sheet, said front edge of the sheet having a sufficient height and said substrate having a sufficient rigidity to allow said tang to be detached from said blade by pivoting the holder downward away from the blade without the rigid surface interferring with said pivoting holder; means for holding the blade against said upper side of said sheet when the tang is placed within the slot and pulled longitudinally relative to the blade after the blade is released.
Claim 5
Independent Claim
84 words
A device for removing a blade from a tang of a blade holder comprising: a sheet having a planar top surface covered with an adhesive and a bottom surface, said sheet also having an elongate slot sized to receive said tang while preventing the face of said blade from passing therethrough; and a pad attached to said bottom surface of said sheet and supporting said sheet and blade against movement as said tang is pressed through said slot and removed longitudinally from said slot.
Claim 6
Independent Claim
84 words
A device for removing a blade from a tang of a blade holder comprising: a sheet having a planar top surface covered with an adhesive and a bottom surface, said sheet also having an elongate slot sized to receive said tang while preventing the face of said blade from passing therethrough; and a pad attached to said bottom surface of said sheet and supporting said sheet and blade against movement as said tang is pressed through said slot and removed longitudinally from said slot.
Claim 7
Independent Claim
180 words
A device for removing a blade having an opening therethrough from a tang of a blade holder, said tang having an upraised projection which extends through said opening to mount said blade on said tang comprising: a support having an essentially planar surface large enough to support the major portion of a blade flat on said support, said support having an elongate slot open at one end and its length extending from its open end at one side of the support into the interior of the support, said slot being of a depth adaptable to receiving said tang when the blade contacts said surface and to permit said tang to be pressed down and released from said blade while said blade remains flat on said surface, said slot having a width which is less than the width of the blade and more than the width of the tang; and means for holding the blade against said surface of the support when the tang is placed within the slot and pulled longitudinally relative to the blade after the blade is released.
Claim 8
Independent Claim
180 words
A device for removing a blade having an opening therethrough from a tang of a blade holder, said tang having an upraised projection which extends through said opening to mount said blade on said tang comprising: a support having an essentially planar surface large enough to support the major portion of a blade flat on said support, said support having an elongate slot open at one end and its length extending from its open end at one side of the support into the interior of the support, said slot being of a depth adaptable to receiving said tang when the blade contacts said surface and to permit said tang to be pressed down and released from said blade while said blade remains flat on said surface, said slot having a width which is less than the width of the blade and more than the width of the tang; and means for holding the blade against said surface of the support when the tang is placed within the slot and pulled longitudinally relative to the blade after the blade is released.
Claim 9
Dependent Claim
41 words
A device for removing blades as defined in claim 4, further comprising: a plurality of said slots having varying widths adapted to permit tangs of varying sizes to fit therein while preventing the blade attached to that tang from passing therethrough.
Claim 10
Dependent Claim
21 words
The device of claim 4 wherein said holding means is an adhesive covering the surface of said support bordering said slot.
Claim 11
Dependent Claim
34 words
The device of claim 4 wherein said holding means is a flap pivotably mounted to said support to fold against said support and over said blade when said tang is placed within said slot.
Claim 12
Dependent Claim
18 words
The device of claim 7 wherein said flap has adhesive applied to the side which contacts said blade.
Claim 13
Dependent Claim
11 words
The device of claim 5 wherein said slots are sequentially identifiable.
Claim 14
Dependent Claim
15 words
The device of claim 6 wherein said adhesive is covered with a removable non-adhesive material.
Claim 15
Dependent Claim
21 words
The device of claim 5 wherein said holding means is an adhesive covering the surface of said support bordering said slots.
Claim 16
Dependent Claim
15 words
The device of claim 11 wherein said adhesive is covered with a removable non-adhesive material.
Claim 17
Dependent Claim
15 words
The device of claim 12 wherein said removable material is selectively removable from each slot.
Claim 18
Dependent Claim
20 words
The device of claim 4 wherein a portion of said slot is contoured to compliment the shape of said blade.
Claim 19
Dependent Claim
46 words
The device of claim 4 wherein one side of said slot is notched near said open end, said notch shaped to receive a portion of the hilt of said blade to prevent said blade from moving with the holder as it is withdrawn from the slot.
Claim 20
Independent Claim
20 words
The device of claims 4, or 5 further comprising means for forming an enclosure to encapsulate said blade after removal.
Claim 21
Dependent Claim
56 words
The device of claim 16 wherein said enclosure means comprises a cover articulately connected to said support to permit said cover and support to be foldable between a closed position and an open position, said cover being transparent to permit the visual inspection of removed blades when the cover and support are in the closed position.
Claim 22
Dependent Claim
40 words
The device of claim 4 wherein said support has an upraised rib bordering said slot proximal said open end, said rib being a pressure point against said blade when the tang is pressed down to release it from the blade.
Claim 23
Dependent Claim
37 words
The device of claim 5 further comprising a cover articulately connected to said support, said cover comprising a plurality of strips, each strip sized to selectively cover a removed blade retained on said support above said slots.
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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) | 1985-08-16 | 1986-02-15 | 1986-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-16 | 1990-02-15 | 1990-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-16 | 1994-02-15 | 1994-08-17 | $7700.00 | Window Closed / Lapsed |