Device and method for joining vessels in anastomosis
Inventors
Tulleken, Cornelis Antonius Franciscus • Mansvelt Beck, Rik Hendricus Jacobus • van Doormaal, Tristan Theodoris Petrus Cornelis
Assignees
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Publication Number
US-8777971-B2
Publication Date
2014-07-15
Expiration Date
Abstract
Devices and methods for attaching an end of a body vessel to another body vessel are disclosed. An adhesive may be used along with a rigid member having one or more protrusions. The invention is useful in surgery, especially vascular surgery and the creation of anastomoses.
Core Innovation
The invention relates to connecting a donor vessel to a recipient vessel of a body using a ring structure comprising a ring portion and at least two protruding pointed structures extending from the ring portion. The donor vessel has a wall with an inner and an outer surface and an open end, and at least two incisions substantially evenly spaced around the circumference begin at the open end and extend axially toward the ring structure to create at least two tail structures and an orifice reinforced by the ring structure.
The ring structure is attached at the inner and/or outer surface of the donor vessel at a position proximate of the open end, and contact is established between the donor vessel and the recipient vessel via the reinforced orifice. Upon engagement with the ring structure via the protruding pointed structures, the recipient vessel is stretched between adjacent protruding pointed structures by a specified percentage range, creating a reinforced, controlled connection region.
A contact plane is formed between the inner surface of the donor vessel at the tail structure and the wall of the recipient vessel, and the donor vessel is attached to the recipient vessel via the contact plane. The claimed approaches specify stretching between about 10% and about 20% in one independent method and between about 5% and about 30% in another independent method, while retaining the ring-reinforced orifice and tail-structure contact plane attachment framework.
Claims Coverage
The partial content includes two independent method claims that share the same core connection architecture. Across the independent claims, the main quantified difference is the recipient-vessel stretch percentage range.
Ring-reinforced donor orifice with tail-structure incisions
Employing a ring structure comprising a ring portion and at least two protruding pointed structures extending from the ring portion to attach said donor vessel to said recipient vessel, wherein the donor vessel has a wall with an inner and an outer surface and an open end, with at least two incisions substantially evenly spaced around the circumference, beginning at the open end and extending axially toward the ring structure and terminating at or before the ring structure to create at least two tail structures and an orifice reinforced by said ring structure.
Protruding pointed engagement to stretch recipient vessel
Attaching the ring structure at said inner and/or outer surface of the donor vessel at a position proximate of said open end, establishing a contact between said donor vessel and said recipient vessel via said orifice; wherein said recipient vessel, upon engagement with said ring structure via said protruding pointed structures, is stretched between about 10% and about 20% at least between at least two of said protruding pointed structures.
Contact plane formation and contact-plane attachment
Forming a contact plane between the inner surface of said donor vessel at said tail structure and said wall of said recipient vessel; and attaching the donor vessel to the recipient vessel via said contact plane.
Ring-reinforced donor orifice with tail-structure incisions (wider stretch range)
Employing a ring structure comprising a ring portion and at least two protruding pointed structures extending from the ring portion to attach said donor vessel to said recipient vessel, wherein the donor vessel has a wall with an inner and an outer surface and an open end, with at least two incisions substantially evenly spaced around the circumference, beginning at the open end and extending axially toward the ring structure and terminating at or before the ring structure to create at least two tail structures and an orifice reinforced by said ring structure; attaching the ring structure at said inner and/or outer surface of the donor vessel at a position proximate of said open end; establishing a contact between said donor vessel and said recipient vessel via said orifice.
Protruding pointed engagement to stretch recipient vessel (5% to 30%)
Wherein said recipient vessel, upon engagement with said ring structure via said protruding pointed structures, is stretched between about 5% and about 30% at least between at least two of said protruding pointed structures.
Contact plane formation and contact-plane attachment
Forming a contact plane between the inner surface of said donor vessel at said tail structure and said wall of said recipient vessel; and attaching the donor vessel to the recipient vessel via said contact plane.
Across the two independent claims, the shared inventive framework is the combination of donor-vessel wall incisions that create tail structures and a ring-reinforced orifice, a ring structure with at least two protruding pointed structures that engages the recipient vessel to stretch it by a claimed percentage range, and formation of a contact plane at the donor tail structure inner surface for attachment to the recipient vessel. The difference between the independent claims in the provided text is the recipient-vessel stretch range.
Stated Advantages
Reduced surgery time and sutures.
Reduced risk of adhesive entering the lumen.
Improved mechanical stability/patency.
Reduced leakage/dehiscence risk.
Documented Applications
Blood-tight/hemostatic connection in anastomosis between a donor vessel and a recipient vessel using an adhesive-assisted, rigid-member ring/loop configuration and a laser catheter applicator concept (ELANA-compatible nonocclusive anastomosis framework as described in the partial content).
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