US5797933A
Expired / Lapsed
US
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Coronary shunt and method of use
Assignee: Heartport Inc
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Filing: 1996-07-16
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Granted: 1998-08-25
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Expires: 2016-07-16
Abstract
Abstract A coronary shunt for occluding both sides of an anastomosis site and providing a blood flow path across the anastomosis site. The shunt includes two occluding members sized and configured to occlude the coronary artery. A tether is attached to the coronary shunt and is used to remove the coronary shunt from the coronary artery before completing the anastomosis.
Inventors
- 👤 David W. Snow
- 👤 Craig L. Adams
- 👤 Brian S. Donlon
- 👤 Hanson S. Gifford, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/064; A61B17/11; A61B17/115; A61B17/12; A61B17/12022; A61B17/12027; A61B17/12036; A61B17/1204; A61B17/12045; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12136; A61B17/02; A61B17/0206; A61B17/0643; A61B17/1152; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00535; A61B2017/00557; A61B2017/00681; A61B2017/00694; A61B2017/00703; A61B2017/0641; A61B2017/1107; A61B2017/1135; A61B2017/12127; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30092; A61F2210/00; A61F2210/0014
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
173 words
A method of permitting fluid flow across an opening in a coronary artery while preventing fluid flow out of the opening in the coronary artery when performing an anastomosis, comprising the steps of: incising an opening in a coronary artery of a patient; providing a shunt including a body having a lumen therethrough, the body having at least a portion formed by a filament wrapped around the lumen; passing the shunt through the opening and into the coronary artery; positioning the shunt in the coronary artery so that a fluid flow is permitted through the lumen from a first side of the opening in the coronary artery to a second side of the opening in the coronary artery; occluding the hollow body structure on the first and second sides of the opening so that fluid flow between the hollow body structure and the shunt is prevented; attaching a graft vessel to the opening in the coronary artery; and removing the shunt through the opening in the coronary artery before completing the attaching step.
Claim 2
Independent Claim
173 words
A method of permitting fluid flow across an opening in a coronary artery while preventing fluid flow out of the opening in the coronary artery when performing an anastomosis, comprising the steps of: incising an opening in a coronary artery of a patient; providing a shunt including a body having a lumen therethrough, the body having at least a portion formed by a filament wrapped around the lumen; passing the shunt through the opening and into the coronary artery; positioning the shunt in the coronary artery so that a fluid flow is permitted through the lumen from a first side of the opening in the coronary artery to a second side of the opening in the coronary artery; occluding the hollow body structure on the first and second sides of the opening so that fluid flow between the hollow body structure and the shunt is prevented; attaching a graft vessel to the opening in the coronary artery; and removing the shunt through the opening in the coronary artery before completing the attaching step.
Claim 3
Dependent Claim
35 words
The method of claim 1, wherein: the providing step is carried out with the shunt having first and second occluding members; and the occluding step is carried out with the first and second occluding members.
Claim 4
Dependent Claim
51 words
The method of claim 1, further comprising the step of: unwinding at least a portion of the filament before the removing step so that a length of the shunt is reduced, the unwinding step being carried out by pulling a part of the filament through the opening in the coronary artery.
Claim 5
Independent Claim
186 words
A method of permitting fluid flow across an opening in a hollow body structure while preventing fluid flow out of an opening in the hollow body structure, comprising the steps of: providing a shunt including a body having a lumen therethrough, the body having at least a portion formed by a filament wrapped around the lumen; positioning the shunt in a hollow body structure so a fluid flow is permitted through the lumen from a first side of an opening in the hollow structure to a second side of the opening; occluding the hollow body structure on the first and second sides of the opening so that fluid flow between the hollow body structure and the shunt is prevented; removing the shunt from the hollow body structure; and unwinding at least a portion of the filament before removing step so that a length of the shunt is reduced; the providing step being carried out with the filament being wrapped toward an end of the shunt and back through the lumen to a hub, the hub having a hole therethrough with the filament extending through the hole.
Claim 6
Independent Claim
186 words
A method of permitting fluid flow across an opening in a hollow body structure while preventing fluid flow out of an opening in the hollow body structure, comprising the steps of: providing a shunt including a body having a lumen therethrough, the body having at least a portion formed by a filament wrapped around the lumen; positioning the shunt in a hollow body structure so a fluid flow is permitted through the lumen from a first side of an opening in the hollow structure to a second side of the opening; occluding the hollow body structure on the first and second sides of the opening so that fluid flow between the hollow body structure and the shunt is prevented; removing the shunt from the hollow body structure; and unwinding at least a portion of the filament before removing step so that a length of the shunt is reduced; the providing step being carried out with the filament being wrapped toward an end of the shunt and back through the lumen to a hub, the hub having a hole therethrough with the filament extending through the hole.
Claim 7
Dependent Claim
18 words
The method of claim 4, further comprising the step of: attaching a graft to the hollow body structure.
Claim 8
Dependent Claim
20 words
The method of claim 4, wherein: the positioning step is carried out by positioning the shunt in a coronary artery.
Claim 9
Dependent Claim
101 words
A shunt for permitting a flow of fluids across an opening in a hollow structure in a patient, comprising: a lumen sized and configured to provide a fluid flow from a first side of an opening in a hollow body structure to a second side of the opening; and a body having a filament wrapped around the lumen, the filament having an end extending from the body, the filament being wrapped in a manner which will unwind when the end is pulled, the body also including a hub having an opening therein, the filament extending through the opening in the hub.
Claim 10
Dependent Claim
101 words
A shunt for permitting a flow of fluids across an opening in a hollow structure in a patient, comprising: a lumen sized and configured to provide a fluid flow from a first side of an opening in a hollow body structure to a second side of the opening; and a body having a filament wrapped around the lumen, the filament having an end extending from the body, the filament being wrapped in a manner which will unwind when the end is pulled, the body also including a hub having an opening therein, the filament extending through the opening in the hub.
Claim 11
Dependent Claim
17 words
The shunt of claim 7, wherein: the body is sized to be inserted into a coronary artery.
Claim 12
Dependent Claim
114 words
A shunt for permitting a flow of fluids across an opening in a hollow structure in patient, comprising: a lumen sized and configured to provide a fluid flow from a first side of an opening in a hollow body structure to a second side of the opening; and a body having a filament wrapped around the lumen, the filament having an end extending from the body, the filament being wrapped in a manner which will unwind when the end is pulled, another end of the filament being attached to the hub, the filament being wound from the hub to an end of the body, through the lumen and through the opening in the hub.
Claim 13
Dependent Claim
114 words
A shunt for permitting a flow of fluids across an opening in a hollow structure in patient, comprising: a lumen sized and configured to provide a fluid flow from a first side of an opening in a hollow body structure to a second side of the opening; and a body having a filament wrapped around the lumen, the filament having an end extending from the body, the filament being wrapped in a manner which will unwind when the end is pulled, another end of the filament being attached to the hub, the filament being wound from the hub to an end of the body, through the lumen and through the opening in the hub.
Claim 14
Dependent Claim
17 words
The shunt of claim 9, wherein: the body is sized to be inserted into a coronary artery.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-24 | 2002-02-23 | 2002-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-24 | 2006-02-23 | 2006-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-24 | 2010-02-23 | 2010-08-25 | $7700.00 | Window Closed / Lapsed |