US3798688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double edge blade scalpel
Assignee: Individual
•
Filing: 1971-12-09
•
Granted: 1974-03-26
•
Expires: 1991-12-09
Abstract
Abstract A surgical scalpel construction having a handle and a blade mounted at one end thereof. The blade has two cutting edges, one on each side edge of the blade. The outer or unattached end of the blade is pointless to prevent stabbing or cutting of the surgeon or assistant during transfer of the scalpel between them while an operation is in progress. The pointless end of the blade may be formed with a concave tip portion, or with a rounded tip portion, or with a V-notch having sharp side edges for cutting sutures. The blade is permanently or disposably attached to the scalpel handle. The handle is provided with a flanged end adjacent to the blade to protect the surgeon''s fingers.
Inventors
- 👤 W Wasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3213
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
145 words
Double edge blade scalpel construc-tion including handle means; blade means mounted on one end of the handle means and extending outwardly therefrom; the blade means having generally smooth flat faces terminating in a pair of opposite edges and in outer and inner ends, the inner blade end being secured to the handle means; at least a portion of said opposite edges of the flat faces being sharpened to form a pair of cutting edges; said cutting edges terminating in inner and outer ends; the outer ends of the cutting edges terminating adjacent the outer blade end; and the outer blade end having a pointless formation with smooth, rounded, conveXly shaped areas adjacent the cutting edge outer ends and projecting longitudinally outwardly beyond said cutting edge outer ends, whereby accidental stabbing or cutting of a surgeon or assistant is reduced when the scalpel is transferred therebetween.
Claim 2
Dependent Claim
145 words
Double edge blade scalpel construc-tion including handle means; blade means mounted on one end of the handle means and extending outwardly therefrom; the blade means having generally smooth flat faces terminating in a pair of opposite edges and in outer and inner ends, the inner blade end being secured to the handle means; at least a portion of said opposite edges of the flat faces being sharpened to form a pair of cutting edges; said cutting edges terminating in inner and outer ends; the outer ends of the cutting edges terminating adjacent the outer blade end; and the outer blade end having a pointless formation with smooth, rounded, conveXly shaped areas adjacent the cutting edge outer ends and projecting longitudinally outwardly beyond said cutting edge outer ends, whereby accidental stabbing or cutting of a surgeon or assistant is reduced when the scalpel is transferred therebetween.
Claim 3
Dependent Claim
60 words
The scalpel construction defined in claim 1 in which the end of the handle means on which the blade means is mounted is formed with a flared portion; in which said flared portion is integral with the handle means; and in which said flared portion completely surrounds said handle means attachment end to provide a guard for a surgeon''s fingers.
Claim 4
Dependent Claim
42 words
The scalpel construction defined in claim 1 in which the pointless outer blade end is formed with a smooth central concave portion; and in which said concave portion is located between the convexly-shaped smooth areas formed adjacent the cutting edge outer ends.
Claim 5
Dependent Claim
46 words
The scalpel construction defined in claim 1 in which the pointless outer blade end is formed with a convex rounded portion; in which said rounded portion is located between the convexly-shaped smooth areas; and in which said rounded portion projects longitudinally outwardly beyond said smooth areas.
Claim 6
Dependent Claim
60 words
The scalpel construction defined in claim 1 in which the pointless outer blade end is formed with a symmetrical V-shaped notch; in which said notch is located between the smooth areas; in which the edges of said notch are straight and equal in length; and in which said notch edges are sharpened to form a second pair of cutting edges.
Claim 7
Dependent Claim
19 words
The scalpel construction defined in claim 1 in which the blade means is removably mounted on the handle means.
Claim 8
Dependent Claim
52 words
The scalpel construction defined in claim 1 in which the handle means includes spring-like pickup jaws with sharpened ends normally biased to open position; in which a replaceable blade holder extends from the other end of said pickup jaws; and in which the blade means is removably mounted on said blade holder.
References Cited (Backward Citations)
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |