Patent US3759263A successfully refreshed from Google Patents.
US3759263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting and dialating surgical device
Assignee: Individual
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Filing: 1971-11-10
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Granted: 1973-09-18
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Expires: 1991-11-10
Abstract
Abstract A surgical device, such as may be used in performing emergency tracheotomies, including an elongate handle and an arm pivotally connected thereto intermediate its ends. The arm and handle have a pair of adjacent ends which move toward and away from each other on relative swinging of the arm and handle about their pivot connection. A first blade is secured to one of the adjacent ends and a second blade is secured to the other. The first blade has a sharpened end spaced outwardly from the handle and sharpened, opposed, diverging edges extending from the sharpened end toward the handle. The second blade is adapted to rest in face-to-face contact with the first blade when the adjacent ends of the arm and handle are moved together. The blades when in this position define an integral cutting element. The other ends of the arm and handle include portions which may be gripped by an operator and squeezed toward each other, with such urging the two blades to move apart and spreadthe edges of a cut made by the integral cutting element formed by the two blades.
Inventors
- 👤 D Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:49
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/0472
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
189 words
A surgical device for producing a cut and spreading the edges of the cut apart comprising an elongate handle and an elongate arm pivotally inter-connected and having a set of operating ends swingable toward and away from each other upon movement of the other set of ends thereof in an opposite direction, a first blade secured to said handle at the operating end thereof, projecting outwardly at a substantial angle therefrom and having a sharpened end spaced outwardly from the handle, and a second blade connected to said arm at the operating end thereof and projecting outwardly at a substantial angle therefrom in the same direction as said first blade, said second blade being constructed to rest in face-to-face relationship with said first blade with said operating ends swung toward each other and having a face profile lying within the face profile of said first blade when resting in face-toface relationship with said first blade, said first blade and second blade being so positioned on the handle and arm respectively that they are moved laterally away from each other on swinging of the operating ends away from each other.
Claim 2
Dependent Claim
189 words
A surgical device for producing a cut and spreading the edges of the cut apart comprising an elongate handle and an elongate arm pivotally inter-connected and having a set of operating ends swingable toward and away from each other upon movement of the other set of ends thereof in an opposite direction, a first blade secured to said handle at the operating end thereof, projecting outwardly at a substantial angle therefrom and having a sharpened end spaced outwardly from the handle, and a second blade connected to said arm at the operating end thereof and projecting outwardly at a substantial angle therefrom in the same direction as said first blade, said second blade being constructed to rest in face-to-face relationship with said first blade with said operating ends swung toward each other and having a face profile lying within the face profile of said first blade when resting in face-toface relationship with said first blade, said first blade and second blade being so positioned on the handle and arm respectively that they are moved laterally away from each other on swinging of the operating ends away from each other.
Claim 3
Dependent Claim
31 words
The device of claim 1, wherein said first blade has a concave face directed toward the second blade, and said second blade has matching convexity and fits within said concave face.
Claim 4
Dependent Claim
56 words
The device of claim 1, wherein said first blade extends laterally of said handle with its sharpened end projecting laterally of said handle, said blade has a concave contour when viewed along a line substantially paralleling the longitudinal axis of the handle, and said second blade is constructed to fit within the region of said concavity.
Claim 5
Dependent Claim
25 words
The device of claim 1, wherein said second blade is shorter than said first blade and has a rounded end spaced outwardly from the arm.
Claim 6
Dependent Claim
182 words
A surgical device for producing a cut and spreading the edges of the cut apart comprising an elongate handle, an elongate arm, means pivotally interconnecting the handle and arm at a region intermediate the ends of each, said handle and arm having a set of operating ends swingable toward and away from each other and a set of manipulatable ends opposite said operating ends, the manipulatable end and operating end of said arm projecting outwardly of the same side of said handle, whereby swinging of the said manipulatable ends together swings said operating ends apart, a first blade secured to said handle at the operating end thereof and projecting at a substantial angle outwardly therefrom and having a sharpened end spaced outwardly from the handle, and a second blade connected to said arm at the operating end thereof and projecting outwardly at a substantial angle therefrom in the same direction as said first blade, said second blade being shorter than said first blade and constructed to rest in face-to-face relationship with said first blade with said operating ends swung toward each other.
Claim 7
Dependent Claim
182 words
A surgical device for producing a cut and spreading the edges of the cut apart comprising an elongate handle, an elongate arm, means pivotally interconnecting the handle and arm at a region intermediate the ends of each, said handle and arm having a set of operating ends swingable toward and away from each other and a set of manipulatable ends opposite said operating ends, the manipulatable end and operating end of said arm projecting outwardly of the same side of said handle, whereby swinging of the said manipulatable ends together swings said operating ends apart, a first blade secured to said handle at the operating end thereof and projecting at a substantial angle outwardly therefrom and having a sharpened end spaced outwardly from the handle, and a second blade connected to said arm at the operating end thereof and projecting outwardly at a substantial angle therefrom in the same direction as said first blade, said second blade being shorter than said first blade and constructed to rest in face-to-face relationship with said first blade with said operating ends swung toward each other.
Claim 8
Dependent Claim
43 words
The device of claim 5, wherein said handle includes a portion at its manipulatable end which may be cradled in the fingers of an operator''s hand, and a stirrup is secured to the manipulatable end of the arm for cradling an operator''s thumb.
Claim 9
Dependent Claim
72 words
The device of claim 5, wherein said operating ends may be swung toward each other to place the first and second blades in face-to-face relationship, said first blade has a concave face directed toward the second blade, and said second blade has a matching convexity and fits within said concave face when the blades are in face-to-face relation to form an integral cutting member opposite face surfaces of which are substantially continuous.
Claim 10
Dependent Claim
34 words
The device of claim 5, wherein said first blade further comprises opposed sharpened edges extending from said sharpened end toward said handle, which edges diverge on progressing from the sharpened eNd toward the handle.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |