Sutureless closure and deployment system for connecting blood vessels
First Claim
1. An anastomosis device for connecting a graft vessel to a target vessel, the device comprising:
- a first linkage formed of a plurality of struts, the first linkage expandable from a first configuration in which the first linkage is a substantially tubular shape to a second configuration in which the first linkage includes a first outwardly extending flange;
a substantially tubular connecting portion extending from the first linkage;
a second linkage extending from the connecting portion and configured to form a second outwardly extending flange spaced from the first outwardly extending flange; and
said outwardly extending flange of said first linkage being formed in response to a radial expansion of said tubular connecting portion.
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Accused Products
Abstract
An anastomosis device is a one piece device for connecting a graft vessel to a target vessel without the use of conventional sutures. The anastomosis device includes an expandable tube configured to have a graft vessel secured to the tube. The device has an expandable linkage positioned at one end of the device and expansion of this linkage causes a first radially extending flange to fold outward. This first flange abuts an interior wall of a target vessel and a second flange is formed which abuts an exterior wall of the target vessel trapping the target vessel between the two flanges and secures the end of the graft vessel into an opening in the wall of the target vessel. The device greatly increases the speed with which anastomosis can be performed over known suturing methods and allows anastomosis to be performed in tight spaces.
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Citations
37 Claims
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1. An anastomosis device for connecting a graft vessel to a target vessel, the device comprising:
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a first linkage formed of a plurality of struts, the first linkage expandable from a first configuration in which the first linkage is a substantially tubular shape to a second configuration in which the first linkage includes a first outwardly extending flange;
a substantially tubular connecting portion extending from the first linkage;
a second linkage extending from the connecting portion and configured to form a second outwardly extending flange spaced from the first outwardly extending flange; and
said outwardly extending flange of said first linkage being formed in response to a radial expansion of said tubular connecting portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An anastomosis device for connecting a graft vessel to a target vessel, the device comprising:
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a body formed from a plurality of struts and deformable from a first configuration in which the device is substantially tubular to a second configuration in which the device includes a first flange and a second flange spaced from the first flange, wherein the body includes a substantially tubular connecting portion between the first flange and the second flange, and said first flange is formed in response to a radial expansion of said tubular connecting portion. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
a first end of the body includes a first linkage which changes from a substantially tubular configuration to an outwardly extending configuration to form the first flange upon radial expansion of the first end by an expander positioned in a center of the body; and
a second end of the body includes a second linkage which is configured to form the second flange upon deployment of the device.
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12. The anastomosis device of claim 11, wherein the first linkage includes a plurality of struts arranged in a configuration such that an axial dimension of the first linkage changes upon outwardly expansion of the linkage.
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13. The anastomosis device of claim 12, wherein the first linkage includes a plurality of folding members which are caused to fold outward by the change in axial dimension of the first linkage.
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14. The anastomosis device of claim 13, wherein the folding members are axially members with central hinges.
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15. The anastomosis device of claim 13, wherein the folding members are diamond shaped members having two central hinges.
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16. The anastomosis device of claim 11, wherein the first linkage includes a plurality of members which are caused to fold outward tangentially to the device by the change in the axial dimension of the first linkage.
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17. The anastomosis device of claim 10, wherein the first and second flanges each form an angle between about 45 and 100 degrees with an axis of the body.
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18. The anastomosis device of claim 10, wherein the first flange is formed by outwardly pivoting a plurality of substantially axial members which are supported by the plurality of struts.
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19. The anastomosis device of claim 10, wherein the first flange and the second flange are spaced apart a distance sufficient to accommodate a wall of a blood vessel.
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20. An anastomosis device, comprising:
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an expandable body and configured to allow fluid flow therethrough; and
a first flange extending from the body, wherein mechanical expansion of a portion of said body causes said first flange to extend outwardly from said body and a second flange extending from the body and spaced apart from the first flange. - View Dependent Claims (21, 22, 34)
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- 23. An anastomosis device comprising a body having elements which form moveable linkages, said body configured to allow fluid flow therethrough, wherein mechanical expansion of said body activates said linkages to form a first flange and wherein mechanical expansion of another portion of the body forms a second flange.
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27. An anastomosis device for connecting a graft vessel to a target vessel, the device comprising:
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a substantially tubular expandable body configured to allow fluid flow therethrough;
a pair of spaced apart flanges extending from said body for holding the tissue of the target vessel between said flanges; and
at least one of said flanges being formed in response to a radial expansion of said substantially tubular expandable body. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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35. An anastomosis device for connecting a graft vessel to a target vessel, the device comprising
a substantially tubular expandable body configured to allow fluid flow therethrough; -
a pair of spaced apart flanges extending from the body for holding the tissue of the target vessel between the flanges; and
at least one of the flanges being formed by a force acting through the substantially tubular expandable body which causes the flange to expand. - View Dependent Claims (36, 37)
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Specification