Cannula for a donor organ with or without an aortic cuff or patch
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-025/00
A61B-017/122
A61B-017/00
출원번호
US-0283166
(2011-10-27)
등록번호
US-9642625
(2017-05-09)
발명자
/ 주소
Kravitz, David
Steinman, Christopher
Pettinato, David
출원인 / 주소
LIFELINE SCIENTIFIC, INC.
대리인 / 주소
Oliff PLC
인용정보
피인용 횟수 :
0인용 특허 :
58
초록▼
A cannula includes a first circumferential portion, a second circumferential portion, and a seal with a first clamping surface. The first circumferential portion and the second circumferential portion are configured to mutually cooperate to support a circumference of vasculature, and form a second c
A cannula includes a first circumferential portion, a second circumferential portion, and a seal with a first clamping surface. The first circumferential portion and the second circumferential portion are configured to mutually cooperate to support a circumference of vasculature, and form a second clamping surface. The first clamping surface and the second clamping surface are configured to cooperate to secure an end of the vasculature.
대표청구항▼
1. A cannula comprising: a first clamping surface;a second clamping surface opposed to the first clamping surface, the second clamping surface including a first circumferential portion and a second circumferential portion, andthe first circumferential portion and the second circumferential being rot
1. A cannula comprising: a first clamping surface;a second clamping surface opposed to the first clamping surface, the second clamping surface including a first circumferential portion and a second circumferential portion, andthe first circumferential portion and the second circumferential being rotatable about a first hinge to surround a length of vasculature such that a portion of the vasculature can pass between the first circumferential portion and the second circumferential portion and at least partially through the first clamping surface; anda fastener configured to fasten the cannula to at least one of a side branch of the vasculature and a suture disposed on at least one of the vasculature and an organ. 2. The cannula according to claim 1, wherein the fastener comprises at least one notch disposed on a periphery of the second clamping surface. 3. The cannula according to claim 1, wherein the fastener comprises at least one protrusion extending from a periphery of the second clamping surface, the protrusion being configured to permit at least one of the side branch and the suture to be wrapped around the protrusion. 4. The cannula according to claim 3, wherein the protrusion comprises an enlarged portion that is configured to prevent the suture or the side branch from sliding off of the protrusion when the suture or the side branch is fastened to the protrusion between the periphery of the second clamping surface and the enlarged portion. 5. The cannula according to claim 1, wherein the fastener comprises: at least one protrusion extending from a periphery of the second clamping surface, the protrusion being configured for at least one of the side branch and the suture to be wrapped around the protrusion; andat least one notch disposed on a periphery of the second clamping surface. 6. The cannula according to claim 5, wherein the at least one notch is disposed adjacent to the at least one protrusion. 7. A cannula comprising: a first clamping surface;a second clamping surface opposed to the first clamping surface, the second clamping surface including a first circumferential portion and a second circumferential portion, andthe first circumferential portion and the second circumferential being rotatable about a first hinge to surround a length of vasculature such that a portion of the vasculature can pass between the first circumferential portion and the second circumferential portion and at least partially through the first clamping surface;at least one strap configured to wrap around the cannula to retain the first clamping surface and the second clamping surface in a closed position; andat least two posts attaching the at least one strap to the cannula. 8. The cannula according to claim 7, wherein the at least two posts are disposed approximately ninety degrees apart from one another around a surface of the cannula. 9. The cannula according to claim 7, wherein the at least two posts attach the at least one strap to the cannula without an adhesive. 10. A cannula comprising: a first clamping surface;a second clamping surface opposed to the first clamping surface, the second clamping surface including a first circumferential portion and a second circumferential portion, andthe first circumferential portion and the second circumferential being rotatable about a first hinge to surround a length of vasculature such that a portion of the vasculature can pass between the first circumferential portion and the second circumferential portion and at least partially through the first clamping surface;a tissue supporting surface disposed outside of the second clamping surface and being configured to retain tissue outside of the first clamping surface and the second clamping surface; anda stiffening rib that stiffens the tissue supporting surface. 11. The cannula according to claim 10, wherein the tissue supporting surface comprises serrations or knurls. 12. The cannula according to claim 10, further comprising a strap to restrain the cannula in a closed position, wherein the stiffening rib comprises a recess configured to limit lateral movement of the strap. 13. A cannula comprising: a first clamping surface comprising a flexible material;a second clamping surface opposed to the first clamping surface, the second clamping surface including a first circumferential portion and a second circumferential portion, andthe first circumferential portion and the second circumferential being rotatable about a first hinge to surround a length of vasculature such that a portion of the vasculature can pass between the first circumferential portion and the second circumferential portion and at least partially through the first clamping surface; anda chamber portion that includes a chamber, an opening, and a seal engaging portion disposed around the opening, the seal engaging portion being engaged with and supporting a periphery of the first clamping surface, andat least one support being disposed within the chamber, the support supporting the first clamping surface and being disposed closer to a center of the first clamping surface than the seal engaging portion. 14. The cannula according to claim 13, wherein the at least one support comprises a plurality of supports, the plurality of supports each being spaced equally and radially about the center of the first clamping surface. 15. The cannula according to claim 13, wherein the at least one support is attached to and extends from a wall of the chamber. 16. The cannula according to claim 1, wherein: the first circumferential portion and the second circumferential portion are rotated about the first hinge around a first axis,the first clamping surface and the second clamping surface are rotatable about a second hinge around a second axis, andthe first axis is perpendicular to the second axis.
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