Paired expandable anastomosis devices
First Claim
1. A paired anastomosis device for holding a first vessel together with a second vessel comprising:
- first ring means for providing support for a first vessel at a first vessel opening, wherein the first ring means has a first ring opening, second ring means for providing support for a second vessel at a second vessel opening, wherein the second ring means has a second ring opening, wherein each ring means is adapted to expand and contract to enable each respective vessel opening to change in diameter, and wherein the ring means are configured to be structurally linked in a manner such that the first and second ring means expand and contract in unison and such that the first vessel remains anastomosed to the second vessel at the first and second vessel openings as the first and second ring means expand and contract.
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Accused Products
Abstract
A paired, expandable anastomosis device joins two vessels together and can expand and contract with changes in the size of the two vessels. The anastomosis device has two expandable rings with a plurality of holding tabs. The holding tabs of one ring are shaped to enable a graft vessel tissue to be everted through one of the rings and to be held on one of the rings. Similarly, the holding tabs of the other ring are shaped to enable a target vessel to be everted through the other ring and to be retained by the holding tabs. Once the graft and target vessels are loaded, the rings are adapted to be brought together to a position in which the graft and target vessels are anastomosed together.
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Citations
20 Claims
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1. A paired anastomosis device for holding a first vessel together with a second vessel comprising:
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first ring means for providing support for a first vessel at a first vessel opening, wherein the first ring means has a first ring opening, second ring means for providing support for a second vessel at a second vessel opening, wherein the second ring means has a second ring opening, wherein each ring means is adapted to expand and contract to enable each respective vessel opening to change in diameter, and wherein the ring means are configured to be structurally linked in a manner such that the first and second ring means expand and contract in unison and such that the first vessel remains anastomosed to the second vessel at the first and second vessel openings as the first and second ring means expand and contract. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A paired anastomosis device for holding a first vessel together with a second vessel comprising:
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a first ring having holding surfaces that define a first ring opening, wherein the holding surfaces are adapted to hold a portion of a first vessel defining a first vessel opening such that the first vessel opening is at the first ring opening, a second ring having a plurality of holding surfaces that define a second ring opening, wherein the holding surfaces are adapted to hold a portion of a second vessel defining a second vessel opening such that the second vessel opening is at the second ring opening, wherein each ring is adapted to expand and contract to enable each respective vessel opening to change in diameter, and wherein the rings are configured to be structurally linked in a manner such that the first and second rings expand and contract in unison and such that the first vessel remains anastomosed to the second vessel at the first and second vessel openings as the first and second rings expand and contract. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A paired anastomosis device for holding a first vessel together with a second vessel comprising:
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first ring means for providing support for a first vessel at a first vessel opening, wherein the first ring means has a first ring opening, second ring means for providing support for a second vessel at a second vessel opening, wherein the second ring means has a second ring opening, wherein each ring means is adapted to be in a compressed position as the first vessel and second vessel are anastomosed together such that each respective ring opening and respective vessel opening have an initial diameter, and wherein at least one ring means is adapted to radially expand to a deployed position after the first vessel and second vessel are anastomosed together such that each ring means and vessel opening has a greater diameter than the initial diameter of each respective ring means and vessel opening.
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19. A paired anastomosis device for holding a first vessel together with a second vessel comprising:
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a first ring having holding surfaces that define a first ring opening, wherein the holding surfaces are adapted to hold a portion of a first vessel defining a first vessel opening such that the first vessel opening is at the first ring opening, a second ring having a plurality of holding surfaces that define a second ring opening, wherein the holding surfaces are adapted to hold a portion of a second vessel defining a second vessel opening such that the second vessel opening is at the second ring opening, wherein each ring is adapted to be in a compressed position as the first vessel and second vessel are anastomosed together such that each respective ring opening and respective vessel opening have an initial diameter, and wherein at least one ring is adapted to radially expand to a deployed position after the first vessel and second vessel are anastomosed together such that each ring and vessel opening has a greater diameter than the initial diameter of each respective ring and vessel opening.
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20. A paired anastomosis device for holding a first vessel together with a second vessel comprising:
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a first ring having a plurality of holding surfaces that define a first ring opening, wherein the holding surfaces are adapted to hold a portion of a first vessel defining a first vessel opening such that the first vessel opening is at the first ring opening, a second ring having a plurality of holding surfaces that define a second ring opening, wherein the holding surfaces are adapted to hold a portion of a second vessel defining a second vessel opening such that the second vessel opening is at the second ring opening, wherein each ring has a plurality of flexible segments from which the respective holding surfaces extend, and guides positioned to provide guided coaxial movement of the rings relative to each other so that the rings can be moved from a loaded position with the first ring offset from the second ring to an anastomosis position with the first vessel is anastomosed to the second vessel at the first and second vessel openings, wherein the plurality of flexible segments of each ring are adapted to enable each respective ring opening and respective vessel opening to change in diameter as each ring expands and contracts in response to changes in fluid pressure.
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Specification