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US4384406A Expired / Lapsed US ⏱️ 0.0 years remaining

Combination suture cutter and remover

Assignee: Cordis Corp
•
Filing: 1981-03-05
•
Granted: 1983-05-24
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Expires: 2001-03-05
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Abstract

Abstract A combination suture cutting and removing instrument comprising an elongate handle with a head portion extending longitudinally outward from one end thereof. The head portion is curved in a generally crescent configuration with a flat end. A suture cutter blade is positioned across the concave portion of the head and terminates slightly before the flat end which is provided with a "V" shaped notch whereby the flat end may be slipped under the suture to bring the cutter into cutting engagement therewith. After the suture is cut, the "V" shaped notch is positioned around the suture beneath the knot so that upward motion will engage the knot and remove the suture.

Inventors

  • 👤 Edward A. Tischlinger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:15
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3213; A61B17/04; A61B17/0467

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 128 words
A combination suture cutting and removing instrument comprising a handle portion, a head portion extending from said handle portion, said head converging to form an end of reduced size, a notch formed in said head end, and a cutter fixedly mounted on the head portion and located completely rearwardly of the notch, said cutter having a cutting blade portion contiguous to the head end whereby in removing sutures the head end may be slid under to the suture so that the cutter blade will engage and sever the suture after which the head end notch is positioned around the suture under the suture knot so that upward movement of the head end will cause the notch portion to engage the knot and remove the suture from the patient.
Claim 2
Dependent Claim 128 words
A combination suture cutting and removing instrument comprising a handle portion, a head portion extending from said handle portion, said head converging to form an end of reduced size, a notch formed in said head end, and a cutter fixedly mounted on the head portion and located completely rearwardly of the notch, said cutter having a cutting blade portion contiguous to the head end whereby in removing sutures the head end may be slid under to the suture so that the cutter blade will engage and sever the suture after which the head end notch is positioned around the suture under the suture knot so that upward movement of the head end will cause the notch portion to engage the knot and remove the suture from the patient.
Claim 3
Dependent Claim 162 words
A combination suture cutting and removing instrument comprising an elongate handle portion, a head portion extending from one end of the handle, said head having a bottom extending forwardly from the handle and curving gently forwardly and upwardly and a top extending from the handle in a forwardly and downwardly curving manner to intersect the bottom and form a transverse flat head end portion, a cutter fitted onto the head portion, said cutter having a cutting edge projecting beyond the arcuate edge portion of the head top, the head end having a notch formed therein wherein in removing sutures the head end may be gently slid under the suture so that the cutter edge engages the suture to sever same after which the head end notch is positioned around the suture end under the suture knot so that upon upward movement the suture knot is engaged and the suture is removed from the patient, said cutter located completely rearwardly of the notch.
Claim 4
Dependent Claim 162 words
A combination suture cutting and removing instrument comprising an elongate handle portion, a head portion extending from one end of the handle, said head having a bottom extending forwardly from the handle and curving gently forwardly and upwardly and a top extending from the handle in a forwardly and downwardly curving manner to intersect the bottom and form a transverse flat head end portion, a cutter fitted onto the head portion, said cutter having a cutting edge projecting beyond the arcuate edge portion of the head top, the head end having a notch formed therein wherein in removing sutures the head end may be gently slid under the suture so that the cutter edge engages the suture to sever same after which the head end notch is positioned around the suture end under the suture knot so that upon upward movement the suture knot is engaged and the suture is removed from the patient, said cutter located completely rearwardly of the notch.
Claim 5
Dependent Claim 27 words
The invention as set forth in claim 2 and wherein the instrument is provided with a finger guard to protect the user from the cutter's cutting edge.
Claim 6
Dependent Claim 27 words
The invention as set forth in claim 3 and wherein the cutter is held in position on the head portion by means of a snap in retainer.
Claim 7
Dependent Claim 25 words
The invention as set forth in claim 4 and wherein the handle portion and the head portion are integral and made of the same material.
Claim 8
Dependent Claim 197 words
A combination suture cutting and removing instrument comprising an elongate generally flat handle portion having parallel vertical sides connected by a top and bottom and wherein the vertical sides are of substantial greater height than the top and bottom are wide, a head portion extending from one end of the handle as an extension thereof with parallel sides and a top and a bottom, said bottom extending forwardly from the end of the handle bottom and gently curving upwardly to its termination, the top curving forwardly and downwardly and finally meeting the bottom to transversely form a thin head end, a cutter fitted in the head portion, said cutter having a cutting edge generally spanning the arc formed by the curved top of the head portion, and the head end having a "V" notch formed therein wherein in removing sutures the head end may be slid under the suture until the cutter edge engages and cuts same whereupon the "V" notch is placed below the suture knot riding on the suture so that upward movement will cause the head end to raise and remove the suture from the patient, said cutter located completely rearwardly of the notch.
Claim 9
Dependent Claim 197 words
A combination suture cutting and removing instrument comprising an elongate generally flat handle portion having parallel vertical sides connected by a top and bottom and wherein the vertical sides are of substantial greater height than the top and bottom are wide, a head portion extending from one end of the handle as an extension thereof with parallel sides and a top and a bottom, said bottom extending forwardly from the end of the handle bottom and gently curving upwardly to its termination, the top curving forwardly and downwardly and finally meeting the bottom to transversely form a thin head end, a cutter fitted in the head portion, said cutter having a cutting edge generally spanning the arc formed by the curved top of the head portion, and the head end having a "V" notch formed therein wherein in removing sutures the head end may be slid under the suture until the cutter edge engages and cuts same whereupon the "V" notch is placed below the suture knot riding on the suture so that upward movement will cause the head end to raise and remove the suture from the patient, said cutter located completely rearwardly of the notch.

References Cited (Backward Citations)

US2556366A Cited
FR1046267A Cited
US3624683A Cited
US4098157A Cited
US4271838A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-05-23 1986-11-22 1987-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-05-23 1990-11-22 1991-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-05-23 1994-11-22 1995-05-24 $7700.00 Window Closed / Lapsed

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