Patent US6352543B1 successfully refreshed from Google Patents.
US6352543B1
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US
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Methods for forming anastomoses using magnetic force
Assignee: Medtronic Inc
•
Filing: 2000-04-29
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Granted: 2002-03-05
•
Expires: 2020-04-29
Abstract
Abstract Methods and devices for forming an anastomosis between hollow bodies using magnetic force to couple anastomotic securing components and create a fluid-tight connection between the lumens of the hollow bodies. End-to-side, side-to-side and end-to-end anastomoses can be created without using suture or any other type of mechanical fasteners, although any such attachment means may be used in conjunction with the magnetic attachment The securing components have magnetic, ferromagnetic or electromagnetic properties and may include one or more materials, for example, magnetic and nonmagnetic materials arranged in a laminated structure. The system of anastomotic securing components may he used in many different applications including the treatment of cardiovascular disease, peripheral vascular disease, forming AV shunts for dialysis patients, etc., and may be sized and configured for forming an anastomosis to a specific hollow body, for example, a coronary artery or the aorta.
Inventors
- 👤 David H. Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2493; A61B; A61B17/00; A61B17/0057; A61B17/064; A61B17/0643; A61B17/11; A61F2/82; A61F2/94; A61B17/00491; A61B17/04; A61B17/0469; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00252; A61B2017/00575; A61B2017/00592; A61B2017/00606; A61B2017/00831; A61B2017/00876; A61B2017/1107; A61B2017/1132; A61B2017/1135; A61B2017/1139; A61B18/00; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61F2/04; A61F2/06; A61F2/064; A61F2/07; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30079; A61F2210/00; A61F2210/0076; A61F2210/009; H; H01; H01F; H01F41/00; H01F41/02; H01F41/0253; H01F41/026; H01F7/00; H01F7/02; H01F7/0231; H01F7/0252; H01F7/0263
Claims Analysis
Total Claims: 69
Claim 1
Independent Claim
111 words
A method for forming an anastomosis between first and second vessels using magnetic force, the method comprising steps of: selecting a first vessel having a lumen; selecting a second vessel having a lumen; securing a first anastomotic component to the first vessel to define a first contact surface, the first contact surface being formed at least in part by an exposed portion of the first anastomotic component; securing a second anastomotic component to the second vessel to define a second contact surface; and using magnetic force to create an anastomosis between the first and second vessels by contacting the exposed portion of the first contact surface with the second contact surface.
Claim 2
Independent Claim
111 words
A method for forming an anastomosis between first and second vessels using magnetic force, the method comprising steps of: selecting a first vessel having a lumen; selecting a second vessel having a lumen; securing a first anastomotic component to the first vessel to define a first contact surface, the first contact surface being formed at least in part by an exposed portion of the first anastomotic component; securing a second anastomotic component to the second vessel to define a second contact surface; and using magnetic force to create an anastomosis between the first and second vessels by contacting the exposed portion of the first contact surface with the second contact surface.
Claim 3
Dependent Claim
26 words
The method of claim 1 , wherein the second contact surface is formed at least in part by an exposed portion of the second anastomotic component.
Claim 4
Dependent Claim
20 words
The method of claim 2 , wherein the exposed portions of the first and second anastomotic components contact one another.
Claim 5
Dependent Claim
36 words
The method of claim 1 , wherein the first vessel is a coronary artery and the second vessel is a graft selected from the group consisting of natural blood vessels and vessels formed of synthetic material.
Claim 6
Dependent Claim
19 words
The method of claim 1 , wherein the exposed portion of the first anastomotic component contacts the second vessel.
Claim 7
Dependent Claim
22 words
The method of claim 1 , wherein the magnetic force is sufficient to maintain the anastomosis between the first and second vessels.
Claim 8
Dependent Claim
22 words
The method of claim 6 , wherein only magnetic force is used to form the anastomosis between the first and second vessels.
Claim 9
Dependent Claim
21 words
The method of claim 1 further comprising the step of maintaining the full size of the opening in the second vessel.
Claim 10
Dependent Claim
29 words
The method of claim 1 , wherein each of the first and second anastomotic components includes a material selected from the group consisting of magnetic, electromagnetic and ferromagnetic materials.
Claim 11
Dependent Claim
27 words
The method of claim 1 , further comprising the step of preventing the first and second anastomotic components from moving toward each other beyond a predetermined distance.
Claim 12
Dependent Claim
30 words
The method of claim 1 , wherein at least one of the first and second anastomotic components is secured to a respective vessel without penetrating the tissue of the vessel.
Claim 13
Dependent Claim
27 words
The method of claim 1 , wherein at least one of the first and second anastomotic components is secured to a respective vessel without everting the vessel.
Claim 14
Dependent Claim
23 words
The method of claim 12 , wherein the first and second anastomotic components are secured to the respective vessels without everting either vessel.
Claim 15
Dependent Claim
14 words
The method of claim 1 , wherein the anastomosis is formed without using glue.
Claim 16
Dependent Claim
36 words
The method of claim 1 , further comprising the step of forming a magnetic anastomosis between the second vessel and a third vessel so as to place the third vessel in communication with the first vessel.
Claim 17
Dependent Claim
15 words
The method of claim 15 , wherein the first and second anastomotic components are unconnected.
Claim 18
Independent Claim
156 words
A method for forming an anastomosis between first and second vessels using magnetic force, the method comprising steps of: selecting a first vessel having a lumen, selecting a second vessel having a lumen; securing a first anastomotic component to the first vessel by capturing tissue of the first vessel between two portions of the first anastomotic component that respectively contact an intimal surface and an exterior surface of the first vessel, wherein the first anastomotic component is secured to the first vessel by compressing the tissue of the first vessel between the two portions of the component, the two portions of the first anastomotic component compressing the intimal and exterior surfaces of the first vessel as a result of magnetic force; securing a second anastomotic component to the second vessel; and using magnetic force between the first and second components to create an anastomosis that places the lumens of the first and second vessels in communication.
Claim 19
Independent Claim
156 words
A method for forming an anastomosis between first and second vessels using magnetic force, the method comprising steps of: selecting a first vessel having a lumen, selecting a second vessel having a lumen; securing a first anastomotic component to the first vessel by capturing tissue of the first vessel between two portions of the first anastomotic component that respectively contact an intimal surface and an exterior surface of the first vessel, wherein the first anastomotic component is secured to the first vessel by compressing the tissue of the first vessel between the two portions of the component, the two portions of the first anastomotic component compressing the intimal and exterior surfaces of the first vessel as a result of magnetic force; securing a second anastomotic component to the second vessel; and using magnetic force between the first and second components to create an anastomosis that places the lumens of the first and second vessels in communication.
Claim 20
Dependent Claim
18 words
The method of claim 17 , wherein the two portions of the first anastomotic component are separate members.
Claim 21
Dependent Claim
27 words
The method of claim 17 , wherein the second anastomotic component is secured to the second vessel without contacting an intimal tissue surface of the second vessel.
Claim 22
Dependent Claim
33 words
The method of claim 17 , wherein the second anastomotic component is secured to an end of the second vessel and is coupled to the first anastomotic component to form an end-to-side anastomosis.
Claim 23
Dependent Claim
19 words
The method of claim 17 , wherein at least one of the first and second vessels includes synthetic material.
Claim 24
Dependent Claim
36 words
The method of claim 17 , wherein the first vessel is a coronary artery and the second vessel is a graft selected from the group consisting of natural blood vessels and vessels formed of synthetic material.
Claim 25
Dependent Claim
22 words
The method of claim 17 , wherein the magnetic force is sufficient to maintain the anastomosis between the first and second vessels.
Claim 26
Dependent Claim
22 words
The method of claim 17 , further comprising the step of maintaining the fall size of an opening in the second vessel.
Claim 27
Dependent Claim
29 words
The method of claim 17 , wherein each of the first and second anastomotic components includes a material selected from the group consisting of magnetic, electromagnetic and ferromagnetic materials.
Claim 28
Dependent Claim
27 words
The method of claim 17 , further comprising the step of preventing the first and second anastomotic components from moving toward each other beyond a predetermined distance.
Claim 29
Dependent Claim
30 words
The method of claim 17 , wherein at least one of the first and second anastomotic components is secured to a respective vessel without penetrating the tissue of the vessel.
Claim 30
Dependent Claim
27 words
The method of claim 17 , wherein at least one of the first and second anastomotic components is secured to a respective vessel without everting the vessel.
Claim 31
Dependent Claim
22 words
The method of claim 28 , wherein the first and second anastomotic components are secured to the vessels without everting either vessel.
Claim 32
Dependent Claim
14 words
The method of claim 17 , wherein the anastomosis is formed without using glue.
Claim 33
Dependent Claim
36 words
The method of claim 17 , further comprising the step of forming a magnetic anastomosis between the second vessel and a third vessel so as to place the third vessel in communication with the first vessel.
Claim 34
Dependent Claim
15 words
The method of claim 17 , wherein the first and second anastomotic components are unconnected.
Claim 35
Dependent Claim
21 words
The method of claim 17 , wherein only magnetic force is used to couple the first and second anastomotic components together.
Claim 36
Dependent Claim
49 words
The method of claim 17 , wherein the first anastomotic component is secured to an end of the first vessel while the second anastomotic component is secured to a side wall of the second vessel, and the first and second anastomotic components are coupled to form an end-to-side anastomosis.
Claim 37
Dependent Claim
13 words
The method of claim 17 , wherein the anastomosis is a side-to-side anastomosis.
Claim 38
Independent Claim
124 words
A method for forming an anastomosis between first and second vessels using magnetic force, the method comprising steps of: selecting a first vessel having a side wall and a lumen; selecting a second vessel having a side wall and a lumen; securing a first anastomotic component to the first vessel by magnetic force; securing a second anastomotic component to the second vessel by a non-magnetic attachment; and using magnetic force between the first and second anastomotic components to create an anastomosis that places the lumens of the first and second vessels in communication; wherein the magnetic force between the first and second anastomotic components is sufficient to maintain the anastomosis between the first and second vessels without interconnecting the first and second anastomotic components.
Claim 39
Independent Claim
124 words
A method for forming an anastomosis between first and second vessels using magnetic force, the method comprising steps of: selecting a first vessel having a side wall and a lumen; selecting a second vessel having a side wall and a lumen; securing a first anastomotic component to the first vessel by magnetic force; securing a second anastomotic component to the second vessel by a non-magnetic attachment; and using magnetic force between the first and second anastomotic components to create an anastomosis that places the lumens of the first and second vessels in communication; wherein the magnetic force between the first and second anastomotic components is sufficient to maintain the anastomosis between the first and second vessels without interconnecting the first and second anastomotic components.
Claim 40
Dependent Claim
16 words
The method of claim 36 , wherein only magnetic force is used to create the anastomosis.
Claim 41
Dependent Claim
35 words
The method of claim 36 , wherein the first vessel is a coronary artery and the second vessel is a graft selected from the-group consisting of natural blood vessels and vessels formed of synthetic material.
Claim 42
Dependent Claim
29 words
The method of claim 36 , wherein only magnetic force between the first and second anastomotic components is used to maintain the anastomosis between the first and second vessels.
Claim 43
Dependent Claim
26 words
The method of claim 36 , further comprising the step of maintaining the full size of an opening in the side wall of the second vessel.
Claim 44
Dependent Claim
29 words
The method of claim 36 , wherein each of the first and second anastomotic components includes a material selected from the group consisting of magnetic, electromagnetic and ferromagnetic materials.
Claim 45
Dependent Claim
27 words
The method of claim 36 , farther comprising the step of preventing the first and second anastomotic components from moving toward each other beyond a predetermined distance.
Claim 46
Dependent Claim
30 words
The method of claim 36 , wherein at least one of the first and second anastomotic components is secured to a respective vessel without penetrating the tissue of the vessel.
Claim 47
Dependent Claim
27 words
The method of claim 36 , wherein at least one of the first and second anastomotic components is secured to a respective vessel without everting the vessel.
Claim 48
Dependent Claim
25 words
The method of claim 44 , wherein the first and second anastomotic components are secured to the first and second vessels without everting either vessel.
Claim 49
Dependent Claim
14 words
The method of claim 36 , wherein the anastomosis is formed without using glue.
Claim 50
Dependent Claim
36 words
The method of claim 36 , farther comprising the step of forming a magnetic anastomosis between the second vessel and a third vessel so as to place the third vessel in communication with the first vessel.
Claim 51
Dependent Claim
15 words
The method of claim 36 , wherein the first and second anastomotic components are unconnected.
Claim 52
Dependent Claim
13 words
The method of claim 36 , wherein the anastomosis is a side-to-side anastomosis.
Claim 53
Independent Claim
126 words
A method for forming an anastomosis between first and second vessels using magnetic force, the method comprising steps of: selecting a first vessel having a lumen; selecting a second vessel having a lumen; securing a first anastomotic component to the first vessel by capturing tissue of the first vessel between two portions of the first anastomotic component, the two portions of the first anastomotic component respectively contacting an intimal surface and an exterior surface of the first vessel; securing a second anastomotic component to the second vessel, the second anastomotic component being secured to the second vessel without contacting an intimal surface of the second vessel; and using magnetic force to create an anastomosis that places the lumens of the first and second vessels in communication.
Claim 54
Independent Claim
126 words
A method for forming an anastomosis between first and second vessels using magnetic force, the method comprising steps of: selecting a first vessel having a lumen; selecting a second vessel having a lumen; securing a first anastomotic component to the first vessel by capturing tissue of the first vessel between two portions of the first anastomotic component, the two portions of the first anastomotic component respectively contacting an intimal surface and an exterior surface of the first vessel; securing a second anastomotic component to the second vessel, the second anastomotic component being secured to the second vessel without contacting an intimal surface of the second vessel; and using magnetic force to create an anastomosis that places the lumens of the first and second vessels in communication.
Claim 55
Dependent Claim
36 words
The method of claim 50 , wherein the first anastomotic component is secured to a side wall of the first vessel by compressing the tissue of the side wall between the two portions of the component.
Claim 56
Dependent Claim
28 words
The method of claim 50 , wherein the two portions compress the intimal and exterior surfaces of the first vessel side wall as a result of magnetic force.
Claim 57
Dependent Claim
33 words
The method of claim 50 , wherein the first anastomotic component is secured to an end of the first vessel and is coupled to the second anastomotic component to form an end-to-side anastomosis.
Claim 58
Dependent Claim
16 words
The method of claim 50 , wherein magnetic force is used to create a side-to-side anastomosis.
Claim 59
Dependent Claim
29 words
The method of claim 50 , wherein the magnetic force between the first and second anastomotic components is sufficient to maintain the anastomosis between the first and second vessels.
Claim 60
Dependent Claim
22 words
The method of claim 50 , wherein only magnetic force is used to secure the first anastomotic component to the first vessel.
Claim 61
Dependent Claim
22 words
The method of claim 50 , further comprising the step of maintaining the full size of an opening in the second vessel.
Claim 62
Dependent Claim
29 words
The method of claim 50 , wherein each of the first and second anastomotic components includes a material selected from the group consisting of magnetic, electromagnetic and ferromagnetic materials.
Claim 63
Dependent Claim
27 words
The method of claim 50 , further comprising the step of preventing the first and second anastomotic components from moving toward each other beyond a predetermined distance.
Claim 64
Dependent Claim
30 words
The method of claim 50 , wherein at least one of the first and second anastomotic components is secured to a respective vessel without penetrating the tissue of the vessel.
Claim 65
Dependent Claim
27 words
The method of claim 50 , wherein at least one of the first and second anastomotic components is secured to a respective vessel without everting the vessel.
Claim 66
Dependent Claim
22 words
The method of claim 50 , wherein the first and second anastomotic components are secured to the vessels without everting either vessel.
Claim 67
Dependent Claim
22 words
The method of claim 50 , wherein the first and second anastomotic components are coupled by magnetic force without being mechanically connected.
Claim 68
Dependent Claim
36 words
The method of claim 50 , wherein the first vessel is a coronary artery and the second vessel is a graft selected from the group consisting of natural blood vessels and vessels formed of synthetic material.
Claim 69
Dependent Claim
13 words
The method of claim 50 , wherein the anastomosis is a side-to-side anastomosis.
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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) | 2005-03-04 | 2005-09-03 | 2006-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-04 | 2009-09-03 | 2010-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-04 | 2013-09-03 | 2014-03-05 | $7700.00 | Window Closed / Lapsed |