US4246698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suture remover
Assignee: LASCHAL SURGICAL Inc A CORP OF PENNSYLVANIA
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Filing: 1979-07-20
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Granted: 1981-01-27
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Expires: 1999-07-20
Abstract
Abstract A suture remover comprising a shearing portion having a cutting edge, and a blade having a cutting section. The cutting edge and cutting section are adapted to shearingly contact one another by moving toward and away from each other. An element is provided on the shearing portion which has a contact area. The element is affixed to the shearing portion at the end of the element remote from the contact area and has at least one bend in a plane substantially parallel to the plane of the shearing portion and adjacent the end. The contact area overlies the cutting edge or extends beyond it in the direction of the cutting section. At least a part of the cutting section is adapted to be placed between tissue and a suture therein, whereby bringing the cutting section into shearing contact with the cutting edge causes the suture remover to both cut and grip the suture for easy removal. The means for causing the movement of the cutting edge and cutting section may advantageously be a scissor-like construction or, if desired, a tweezer-like construction.
Inventors
- 👤 Jeffrey I. Lasner
- 👤 Francisco H. Aleixo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3201; A61B17/04; A61B17/0467; B; B26; B26B; B26B13/00; B26B13/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
220 words
In a suture remover comprising a shearing portion having a cutting edge, and a blade having a cutting section, at least one of said edge and said section being adapted for movement toward and away from the other along a cutting plane for shearing contact with a suture to be cut, an elongated suture gripping element having a contact area and connected to said shearing portion at an end of the element remote from said contact area, said gripping element being substantially planar along its elongation and resiliently deformable for gripping the suture whereby relative movement of said cutting edge and cutting section along said cutting plane for shearing contact with the suture during operative use of the suture remover causes deformation of the gripping element such that its contact area is resiliently moved along said cutting plane and substantially perpendicular to the elongation of the gripping element, said suture gripping element further including at least a bend in the plane of its elongation and adjacent said end remote from the contact area for facilitating the distribution of said deformation of the element between said bend and said end connection of the element during operative use of the suture remover so as to prevent premature deterioration of said connection and thereby extend the useful operational life of the suture remover.
Claim 2
Dependent Claim
220 words
In a suture remover comprising a shearing portion having a cutting edge, and a blade having a cutting section, at least one of said edge and said section being adapted for movement toward and away from the other along a cutting plane for shearing contact with a suture to be cut, an elongated suture gripping element having a contact area and connected to said shearing portion at an end of the element remote from said contact area, said gripping element being substantially planar along its elongation and resiliently deformable for gripping the suture whereby relative movement of said cutting edge and cutting section along said cutting plane for shearing contact with the suture during operative use of the suture remover causes deformation of the gripping element such that its contact area is resiliently moved along said cutting plane and substantially perpendicular to the elongation of the gripping element, said suture gripping element further including at least a bend in the plane of its elongation and adjacent said end remote from the contact area for facilitating the distribution of said deformation of the element between said bend and said end connection of the element during operative use of the suture remover so as to prevent premature deterioration of said connection and thereby extend the useful operational life of the suture remover.
Claim 3
Dependent Claim
35 words
In a suture remover according to claim 1, said gripping element further including a second bend substantially at said end thereof and lying in a plane substantially perpendicular to the elongation of said gripping element.
Claim 4
Dependent Claim
74 words
In a suture remover according to claim 1, a first and a second shank pivotally connected at a point intermediate their ends and one end of each of said shanks defining a handle, said first shank terminating at an end remote from its handle in said shearing portion and said second shank terminating at an end remote from said handle in said blade so as to form a scissor-like structure of the suture remover.
Claim 5
Dependent Claim
31 words
In a suture remover according to claim 1, said contact area normally extending beyond said cutting edge such that in operative use said remover first grips and then cuts the suture.
Claim 6
Dependent Claim
19 words
In a suture remover according to claim 1, an end of said blade adjacent said cutting section being rounded.
Claim 7
Dependent Claim
22 words
In a suture remover according to claim 3, said cutting section being adjacent an end of said blade remote from said point.
Claim 8
Dependent Claim
38 words
In a suture remover according to claim 1, said contact area of the gripping element being adapted to move in a direction away from said cutting section under the urgency thereof during operative use of the suture remover.
Claim 9
Dependent Claim
15 words
In a suture remover according to claim 1, said gripping element comprising a wire member.
Claim 10
Dependent Claim
22 words
In a suture remover according to claim 1, said plane of elongation of the gripping element substantially corresponding to said cutting plane.
Claim 11
Dependent Claim
191 words
In a suture remover comprising a shearing portion having a cutting edge and a blade having a cutting section, at least one of said edge and said section being adapted for movement toward and away from the other for shearing contact with a suture to be cut, and a resilient element on said shearing portion for gripping the suture and having a contact area, said element being elongated along a plane and being affixed to said shearing portion at an end of said element remote from its contact area, and at least a part of said cutting section being adapted to be placed between tissue and a suture therein to be cut whereby bringing said cutting section into shearing contact with said cutting edge causes the suture remover to both cut and grip the suture, the improvement comprising: at least a bend of less than 90 degrees in said element in the plane of its elongation and adjacent said end at which said element is affixed to the shearing portion, and an elongated, substantially straight portion on said resilient element extending between and spacing apart said contact area and said bend.
Claim 12
Dependent Claim
191 words
In a suture remover comprising a shearing portion having a cutting edge and a blade having a cutting section, at least one of said edge and said section being adapted for movement toward and away from the other for shearing contact with a suture to be cut, and a resilient element on said shearing portion for gripping the suture and having a contact area, said element being elongated along a plane and being affixed to said shearing portion at an end of said element remote from its contact area, and at least a part of said cutting section being adapted to be placed between tissue and a suture therein to be cut whereby bringing said cutting section into shearing contact with said cutting edge causes the suture remover to both cut and grip the suture, the improvement comprising: at least a bend of less than 90 degrees in said element in the plane of its elongation and adjacent said end at which said element is affixed to the shearing portion, and an elongated, substantially straight portion on said resilient element extending between and spacing apart said contact area and said bend.
Claim 13
Dependent Claim
39 words
In a suture remover according to claim 10, a second bend in said element substantially at said end thereof, at least a portion of said second bend lying in a plane substantially perpendicular to the elongation of said element.
References Cited (Backward Citations)
FR17353E
Cited
US2865099A
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GB1072449A
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US3443313A
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US3802074A
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US3922781A
Cited
US4023270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |