US6371965B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices and methods for performing a vascular anastomosis
Assignee: Individual
•
Filing: 2001-01-08
•
Granted: 2002-04-16
•
Expires: 2021-01-08
Abstract
Abstract A system for performing an end-to-side vascular anastomosis, including an anastomosis device, an application instrument and methods for performing a vascular anastomosis. The system is applicable for performing an anastomosis between a vascular graft and the ascending aorta in coronary artery bypass surgery, particularly in port-access CABG surgery. A first aspect of the invention includes a vascular anastomosis staple. A first configuration has two parts: an anchor member, forming the attachment with the target vessel wall and a coupling member, forming the attachment with the bypass graft vessel. The anastomosis is completed by inserting the coupling member, with the graft vessel attached, into the anchor member. A second configuration combines the functions of the anchor member and the coupling member into a one-piece anastomosis staple. A second aspect of the invention includes an anastomotic fitting, having an inner flange over which the graft vessel is everted and an outer flange which contacts the exterior surface of the target vessel. A tailored amount of compression applied by the inner and outer flanges grips the target vessel wall and creates a leak-proof seal between the graft vessel and the target vessel. A third aspect of the invention has a flange to which the graft vessel attaches, by everting the graft vessel over the flange, and a plurality of staple-like members which attach the flange and the everted end of the graft vessel to the wall of the target vessel to form the anastomosis.
Inventors
- 👤 Hanson S. Gifford, III
- 👤 Lee R. Bolduc
- 👤 Jeffrey A. Stein
- 👤 Paul C. DiCesare
- 👤 Peter F. Costa
- 👤 William A. Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/064; A61B17/11; A61B17/115; A61B17/12027; A61B17/12036; A61B17/1204; A61B17/12045; A61B17/12131; A61B17/12136; A61B17/0643; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/0641; 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: 13
Claim 1
Independent Claim
238 words
An anastomosis fitting for connecting a free end of a graft vessel to a wall of a target vessel such that a lumen in the graft vessel is in fluid communication with a lumen in the target vessel through an opening in the wall of the target vessel, the anastomosis fitting comprising: an inner flange having a proximal surface, a distal surface and a central orifice of sufficient size to accommodate an external diameter of said graft vessel, said inner flange providing an attachment for said graft vessel to the target vessel when said end of said graft vessel is positioned in the central orifice, said inner flange being insertable through said opening in said wall of said target vessel, wherein said inner flange has at least two operative positions, including a collapsed position wherein said inner flange has a collapsed diameter, and an expanded position wherein said inner flange has an expanded diameter which is greater than said collapsed diameter, the inner flange having a plurality of flange sectors which extend radially outward when expanded, the flange sectors engaging an inner wall of the lumen in the target vessel; and an outer flange having a proximal surface, a distal surface and a central orifice coupled to the central orifice of the inner flange, said distal surface of said outer flange being configured to contact an exterior surface of said wall of said target vessel proximate said opening.
Claim 2
Dependent Claim
238 words
An anastomosis fitting for connecting a free end of a graft vessel to a wall of a target vessel such that a lumen in the graft vessel is in fluid communication with a lumen in the target vessel through an opening in the wall of the target vessel, the anastomosis fitting comprising: an inner flange having a proximal surface, a distal surface and a central orifice of sufficient size to accommodate an external diameter of said graft vessel, said inner flange providing an attachment for said graft vessel to the target vessel when said end of said graft vessel is positioned in the central orifice, said inner flange being insertable through said opening in said wall of said target vessel, wherein said inner flange has at least two operative positions, including a collapsed position wherein said inner flange has a collapsed diameter, and an expanded position wherein said inner flange has an expanded diameter which is greater than said collapsed diameter, the inner flange having a plurality of flange sectors which extend radially outward when expanded, the flange sectors engaging an inner wall of the lumen in the target vessel; and an outer flange having a proximal surface, a distal surface and a central orifice coupled to the central orifice of the inner flange, said distal surface of said outer flange being configured to contact an exterior surface of said wall of said target vessel proximate said opening.
Claim 3
Dependent Claim
22 words
The anastomosis fitting of claim 1 , wherein: the plurality of flange sectors are a plurality of fingers which extend radially outward.
Claim 4
Dependent Claim
19 words
The anastomosis fitting of claim 2 , wherein: the plurality of fingers are naturally biased toward the expanded position.
Claim 5
Dependent Claim
51 words
The anastomosis fitting of claim 2 , wherein: the plurality of fingers are held in the collapsed position by a tubular tool which slides relative to the plurality of fingers, the tubular tool moving proximally to release the plurality of fingers to permit the fingers to move toward the expanded position.
Claim 6
Dependent Claim
18 words
The anastomosis fitting of claim 1 , wherein: the inner and outer flanges compress the target vessel therebetween.
Claim 7
Dependent Claim
22 words
The anastomosis fitting of claim 1 , wherein: the inner and outer flanges compress the target vessel without penetrating the target vessel.
Claim 8
Independent Claim
182 words
A method of forming an anastomosis between a graft vessel and a target vessel, comprising the steps of: providing an anastomosis device having an inner flange, an outer flange, and a central orifice therethrough, the inner flange having a proximal surface and a distal surface, the inner flange having at least two operative positions including a collapsed position wherein said inner flange has a collapsed diameter and an expanded position wherein said inner flange has an expanded diameter which is greater than said collapsed diameter, the inner flange having a plurality of flange sectors which extend radially outward when in the expanded position, the outer flange having a proximal surface and a distal surface; positioning the graft in the central orifice; holding the plurality of flange sectors in the collapsed position; inserting the inner flange into the target vessel with the flange sectors in the collapsed position; permitting the plurality of flange sectors to expand to the expanded position, wherein the inner flange contacts the inner wall of the graft vessel; and compressing the target vessel between the inner and outer flanges.
Claim 9
Independent Claim
182 words
A method of forming an anastomosis between a graft vessel and a target vessel, comprising the steps of: providing an anastomosis device having an inner flange, an outer flange, and a central orifice therethrough, the inner flange having a proximal surface and a distal surface, the inner flange having at least two operative positions including a collapsed position wherein said inner flange has a collapsed diameter and an expanded position wherein said inner flange has an expanded diameter which is greater than said collapsed diameter, the inner flange having a plurality of flange sectors which extend radially outward when in the expanded position, the outer flange having a proximal surface and a distal surface; positioning the graft in the central orifice; holding the plurality of flange sectors in the collapsed position; inserting the inner flange into the target vessel with the flange sectors in the collapsed position; permitting the plurality of flange sectors to expand to the expanded position, wherein the inner flange contacts the inner wall of the graft vessel; and compressing the target vessel between the inner and outer flanges.
Claim 10
Dependent Claim
28 words
The method of claim 7 , wherein: the providing step is carried out with the plurality of flange sectors being a plurality of fingers which extend radially outward.
Claim 11
Dependent Claim
25 words
The method of claim 8 , wherein: the providing step is carried out with the plurality of fingers being naturally biased toward the expanded position.
Claim 12
Dependent Claim
57 words
The method of claim 8 , wherein: the holding step is carried out with the plurality of fingers being held in the collapsed position by a tubular tool; and the permitting step is carried out by sliding the tubular tool proximally to release the plurality of fingers and permit the fingers to move toward the expanded position.
Claim 13
Dependent Claim
24 words
The method of claim 7 , wherein: the compressing step is carried out without penetrating the target vessel with the inner and outer flanges.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-04-15 | 2005-10-15 | 2006-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-04-15 | 2009-10-15 | 2010-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-04-15 | 2013-10-15 | 2014-04-16 | $7700.00 | Window Closed / Lapsed |