Patent US5281236A successfully refreshed from Google Patents.
US5281236A
Expired / Lapsed
US
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Method and device for intracorporeal knot tying
Assignee: Boston Scientific Corp
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Filing: 1992-06-23
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Granted: 1994-01-25
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Expires: 2012-06-23
Abstract
Abstract A method and device for intracorporeal knot tying. The device comprises an elongated, tubular member formed of a shape memory material for carrying a suture thread through an internal passage. A distal end of the tube is formed with a bight. An outer sheath supports the remaining length of the tube. When a knot is to be formed, a free end of the suture is pulled through the preformed bight. The tube and sheath then move relative to each other to straighten the bight and throw off a knot in the suture thread for subsequent tightening.
Inventors
- 👤 V. John Bagnato
- 👤 Jeff A. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0041; A61B; A61B17/00; A61B17/04; A61B17/0469; A61B17/12; A61B17/12009; A61B17/12013; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30092; A61F2210/00; A61F2210/0014
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
134 words
A device for facilitating the tying of a suture at a distal, intracorporeal location by manipulation at a proximal location comprising: A. an elongated flexible tube means formed of a shape memory material for supporting a suture between the proximal and distal locations, said tube being formed with a bight at the distal end and thereby forming a loop in the suture, B. elongated sheath means for overlying said tube means and being displaceable with respect to said tube means whereby displacement of said sheath means to the distal end of said tube means straightens said bight and proximal displacement of said sheath means enables said tube means to reform said bight, and C. manipulation means for moving said tube means and said sheath means relative to the distal location and to each other.
Claim 2
Independent Claim
134 words
A device for facilitating the tying of a suture at a distal, intracorporeal location by manipulation at a proximal location comprising: A. an elongated flexible tube means formed of a shape memory material for supporting a suture between the proximal and distal locations, said tube being formed with a bight at the distal end and thereby forming a loop in the suture, B. elongated sheath means for overlying said tube means and being displaceable with respect to said tube means whereby displacement of said sheath means to the distal end of said tube means straightens said bight and proximal displacement of said sheath means enables said tube means to reform said bight, and C. manipulation means for moving said tube means and said sheath means relative to the distal location and to each other.
Claim 3
Dependent Claim
32 words
An intracorporeal knot tying device as recited in claim 1 wherein said manipulation means comprises first and second manipulators at the proximal ends of said tube means and of said sheath respectively.
Claim 4
Dependent Claim
28 words
An intracorporeal knot tying device as recited in claim 2 wherein said tube means comprises an elongated flexible tube formed of a material characterized by a shape memory.
Claim 5
Dependent Claim
23 words
An intracorporeal knot tying device as recited in claim 3 wherein said flexible tube material is of shape memory metals and metal alloys.
Claim 6
Dependent Claim
23 words
An intracorporeal knot tying device as recited in claim 3 wherein said flexible tube material comprises a plastic material having shape memory characteristics.
Claim 7
Dependent Claim
30 words
An intracorporeal knot tying device as recited in claim 3 wherein said flexible tube material comprises a composite of plastic and metal materials wherein said composite has shape memory characteristics.
Claim 8
Dependent Claim
18 words
An intracorporeal knot tying device as recited in claim 3 wherein said sheath is formed of a metal.
Claim 9
Dependent Claim
18 words
An intracorporeal knot tying device as recited in claim 3 wherein said sheath is formed of stainless steel.
Claim 10
Dependent Claim
33 words
An intracorporeal knot tying device as recited in claim 1 wherein said manipulation means comprises first and second manipulators at the proximal ends of said tube means and of said straightening means, respectively.
Claim 11
Dependent Claim
28 words
An intracorporeal knot tying device as recited in claim 1 wherein said material is taken from a group of metals and metal alloys characterized by having shape memory.
Claim 12
Dependent Claim
20 words
An intracorporeal knot tying device as recited in claim 1 wherein said material is of thermoplastic material having shape memory.
Claim 13
Dependent Claim
20 words
An intracorporeal knot tying device as recited in claim 1 wherein said material comprises a composite having shape memory characteristics.
Claim 14
Independent Claim
85 words
A method for tying a suture at a distal, in situ location by manipulation at a proximal location wherein the suture is held in an elongated, flexible tube, said method comprising the steps of: A. forming a bight at the distal end of the tube proximate the in situ location, B. displacing the distal end of the suture through the bight, C. straightening the bight end to form a loop in the suture externally of the tube thereby to form a knot in the suture.
Claim 15
Independent Claim
85 words
A method for tying a suture at a distal, in situ location by manipulation at a proximal location wherein the suture is held in an elongated, flexible tube, said method comprising the steps of: A. forming a bight at the distal end of the tube proximate the in situ location, B. displacing the distal end of the suture through the bight, C. straightening the bight end to form a loop in the suture externally of the tube thereby to form a knot in the suture.
Claim 16
Dependent Claim
47 words
An intracorporeal knot tying method as recited in claim 13 wherein the tube is composed of a material with shape memory and is carried in a sheath, said straightening comprising a step of displacing the sheath distally with respect to the tube thereby to straighten the bight.
Claim 17
Dependent Claim
36 words
An intracorporeal knot tying method as recited in claim 14 additionally comprising the step of displacing the sheath proximally after forming a knot thereby to enable the tube to reform a bight at the distal end.
Claim 18
Dependent Claim
62 words
An intracorporeal knot tying method as recited in claim 13 wherein said displacing step includes positioning the bight to enable grasping means to extend through the bight to grasp the distal end of the suture, moving the distal end of the grasping means through the bight, grasping the distal end of the suture and withdrawing the distal suture end through the bight.
Claim 19
Dependent Claim
82 words
An intracorporeal knot tying method as recited in claim 16 wherein the tube is composed of a material with shape memory and is carried in a sheath, said straightening step comprising the steps of holding the distal end of the suture at a stable position with the grasping means, holding the distal end of the tube at a stable position and displacing the sheath distally with respect to the tube thereby to straighten the bight and form a knot in the suture.
Claim 20
Dependent Claim
33 words
An intracorporeal knot tying method as recited in claim 17 additionally comprising the steps of applying tension to the portions of the suture extending from the knotted portion thereby to tighten the knot.
Claim 21
Independent Claim
153 words
A device for facilitating the tying of a suture at a distal, intracorporeal location by manipulation at a proximal location comprising: A. an elongated flexible tube means formed of a shape memory material for supporting a suture between the proximal and distal locations, said tube being formed with a bight at the distal end and having a predetermined length and thereby forming a loop in the suture, B. elongated sheath means for engaging said tube means and being displaceable with respect to said tube means whereby displacement of said sheath means to the distal end of said tube means straightens said bight and proximal displacement of said sheath means enables said tube means to reform said bight, said elongated sheath means having a length that is less than the predetermined length, and C. manipulation means for moving said tube means and said sheath means relative to the distal location and to each other.
Claim 22
Independent Claim
153 words
A device for facilitating the tying of a suture at a distal, intracorporeal location by manipulation at a proximal location comprising: A. an elongated flexible tube means formed of a shape memory material for supporting a suture between the proximal and distal locations, said tube being formed with a bight at the distal end and having a predetermined length and thereby forming a loop in the suture, B. elongated sheath means for engaging said tube means and being displaceable with respect to said tube means whereby displacement of said sheath means to the distal end of said tube means straightens said bight and proximal displacement of said sheath means enables said tube means to reform said bight, said elongated sheath means having a length that is less than the predetermined length, and C. manipulation means for moving said tube means and said sheath means relative to the distal location and to each other.
Claim 23
Independent Claim
152 words
A device for facilitating the tying of a suture at a distal, intracorporeal location by manipulation at a proximal location comprising: A. an elongated flexible tube means formed of a shape memory material for supporting a suture between the proximal and distal locations, said tube being formed with a bight at the distal end and having a predetermined length and thereby forming a loop in the suture, B. elongated sheath means for overlying said tube means and being displaceable with respect to said tube means whereby displacement of said sheath means to the distal end of said tube means straightens said bight and proximal displacement of said sheath means enables said tube means to reform said bight, said sheath means having a length that is less than the predetermined length, and C. manipulation means for moving said tube means and said sheath means relative to the distal location and to each other.
Claim 24
Independent Claim
152 words
A device for facilitating the tying of a suture at a distal, intracorporeal location by manipulation at a proximal location comprising: A. an elongated flexible tube means formed of a shape memory material for supporting a suture between the proximal and distal locations, said tube being formed with a bight at the distal end and having a predetermined length and thereby forming a loop in the suture, B. elongated sheath means for overlying said tube means and being displaceable with respect to said tube means whereby displacement of said sheath means to the distal end of said tube means straightens said bight and proximal displacement of said sheath means enables said tube means to reform said bight, said sheath means having a length that is less than the predetermined length, and C. manipulation means for moving said tube means and said sheath means relative to the distal location and to each other.
Claim 25
Dependent Claim
33 words
An intracorporeal knot tying device as recited in claim 20 wherein said manipulation means comprises first and second manipulators at the proximal ends of said tube means and of said straightening means, respectively.
Claim 26
Dependent Claim
23 words
An intracorporeal knot tying device as recited in claim 20 wherein said material is of shape memory metals and shape memory metal alloys.
Claim 27
Dependent Claim
20 words
An intracorporeal knot tying device as recited in claim 20 wherein said material is a thermoplastic material having shape memory.
Claim 28
Dependent Claim
23 words
An intracorporeal knot tying device as recited in claim 20 wherein said material comprises a plastic and metal composite having shape memory characteristics.
References Cited (Backward Citations)
US3580256A
Cited
US4351333A
Cited
US4641652A
Cited
US4747840A
Cited
US5100418A
Cited
US4957498A
Cited
US4986814A
Cited
US4874360A
Cited
US4913683A
Cited
US4950285A
Cited
US4961741A
Cited
US5087263A
Cited
US5100421A
Cited
US5098137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |