Patent US5122152A successfully refreshed from Google Patents.
US5122152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suture removing device
Assignee: 1017670 ONTARIO Inc
•
Filing: 1989-02-24
•
Granted: 1992-06-16
•
Expires: 2009-02-24
Abstract
Abstract There is described a suture removing device comprising a body having a handle portion, a head portion, and a cutting edge provided in the head portion. The head portion has a leading end with a forked tip and a surface extending rearwardly of the tip to the cutting edge. The forked tip is inserted below a suture to lift the suture from the skin and pushed forwards such that the suture rides along the surface and on to the cutting edge where the suture is cut. The forked tip of the device is then placed around the suture, below the suture knot, to allow the suture to be pulled out.
Inventors
- 👤 John D. Mull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:11
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06161; A61B17/0467; Y; Y10; Y10S; Y10S30/00; Y10S30/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
158 words
A suture removing device comprising a body having a handle portion, a head portion and a cutting edge provided in the head portion, the head portion have a tapered leading end with a forked tip and a surface extending rearwardly of the tip to the cutting edge, wherein the cutting edge extends in a direction longitudinally of the device and the forked tip comprises a pair of prongs spaced in a direction transverse to said longitudinal direction, wherein said tapered leading end of the head portion is shaped to permit insertion thereof between a suture and a patient's skin to cause the suture to ride along said surface extending rearwardly of the tip to the cutting edge for cutting of the suture, and wherein said prongs are spaced to permit the tip to be hooked around a knot in the suture with a severed portion of the suture between said prongs, for pulling the suture from the skin.
Claim 2
Dependent Claim
158 words
A suture removing device comprising a body having a handle portion, a head portion and a cutting edge provided in the head portion, the head portion have a tapered leading end with a forked tip and a surface extending rearwardly of the tip to the cutting edge, wherein the cutting edge extends in a direction longitudinally of the device and the forked tip comprises a pair of prongs spaced in a direction transverse to said longitudinal direction, wherein said tapered leading end of the head portion is shaped to permit insertion thereof between a suture and a patient's skin to cause the suture to ride along said surface extending rearwardly of the tip to the cutting edge for cutting of the suture, and wherein said prongs are spaced to permit the tip to be hooked around a knot in the suture with a severed portion of the suture between said prongs, for pulling the suture from the skin.
Claim 3
Dependent Claim
46 words
A suture removing device as claimed in claim 1, in which the head portion is provided with a skin contacting surface extending rearwardly of the tip on the opposite side of the leading end from the surface extending rearwardly of the tip to the cutting edge.
Claim 4
Dependent Claim
17 words
A suture removing device as claimed in claim 2, in which the skin contacting surface is convex.
Claim 5
Dependent Claim
46 words
A suture removing device as claimed in claim 3, in which the cutting edge is formed on one edge of a detachable blade and the head portion is recessed to receive the blade, a retaining means being provided to retain the blade on the head portion.
Claim 6
Dependent Claim
28 words
A suture removing device as claimed in claim 4, in which the skin contacting surface is formed on a rib extending from the handle portion to the tip.
Claim 7
Dependent Claim
45 words
A suture removing device as claimed in claim 4, in which the surface of the leading end extending rearwardly of the tip to the cutting edge continues below the cutting edge to assist in locating the blade and is bevelled to clear the cutting edge.
Claim 8
Dependent Claim
49 words
A suture removing device as claimed in claim 4, in which the retaining means is in the form of a retaining member having a surface for abutting the blade and projections for engaging corresponding apertures in the blade and corresponding apertures in the leading end of the head portion.
Claim 9
Dependent Claim
16 words
A suture removing device as claimed in claim 1, in which the handle portion is elongate.
Claim 10
Dependent Claim
31 words
A suture removing device as claimed in claim 4, 7 or 8, in which a cutting edge guard extends from the head portion intermediate the cutting edge and the handle portion.
References Cited (Backward Citations)
US2696621A
Cited
US2865099A
Cited
US3266493A
Cited
US3802074A
Cited
US3879846A
Cited
US4053979A
Cited
US4034473A
Cited
US4271838A
Cited
US4494542A
Cited
US4473076A
Cited
US4432138A
Cited
US4709481A
Cited
US4753009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-16 | 1995-12-16 | 1996-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-16 | 1999-12-16 | 2000-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-16 | 2003-12-16 | 2004-06-16 | $7700.00 | Window Closed / Lapsed |