Aortic cannula for ex vivo organ care system
First Claim
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1. An aortic cannula for use in an ex vivo organ care system comprising:
- a cannula body comprising;
a fitting adapted to connect to an organ care system, andan aorta interface to contact an aorta;
a pivot arm strap operably connected to a pivot mount, wherein the pivot mount allows the pivot arm strap to uniformly contact the aorta to hold the aorta on the aorta interface; and
a spring which applies pressure to the pivot arm strap to hold the aorta on the aorta interface.
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Abstract
The invention provides, in various embodiments, devices and methods relating to ex-vivo organ care. In certain embodiments, the invention relates to aortic cannulas for use in perfusion systems to return perfusate to the heart or delivering perfusate from the heart while the organ is sustained ex vivo at physiologic or near-physiologic conditions.
240 Citations
22 Claims
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1. An aortic cannula for use in an ex vivo organ care system comprising:
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a cannula body comprising; a fitting adapted to connect to an organ care system, and an aorta interface to contact an aorta; a pivot arm strap operably connected to a pivot mount, wherein the pivot mount allows the pivot arm strap to uniformly contact the aorta to hold the aorta on the aorta interface; and a spring which applies pressure to the pivot arm strap to hold the aorta on the aorta interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An aortic cannula for use in an ex vivo organ care system, comprising:
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a locking nut configured to reversibly secure the aortic cannula to an organ chamber assembly; a cannula body, comprising; a tapered fitting sized to connect to an organ chamber assembly; an aorta interface sized to fit within an aorta; and a tapered midsection extending from the tapered fitting to the aorta interface; and a pivot mount; a pivot arm operably connected to the pivot mount, the pivot arm comprising; a grip pad that can be used to depress a top of the pivot arm; a pivot arm strap configured to hold the aorta against the aorta interface; and a sliding pivot window configured to allow the pivot arm strap to maintain contact with the aorta through a range of motion; and a dowel pin allows the pivot mount to connect to the sliding pivot window; wherein the pivot arm is configured to rotate around the dowel pin. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method of using an aortic cannula to place a heart in fluid communication with an organ care system the method comprising:
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selecting an aortic cannula sized to fit an aorta of the heart the aortic cannula comprising; a cannula body comprising; a fitting adapted to connect to an organ care system; and an aorta interface to contact an aorta; and a pivot arm strap operably connected to a pivot mount, wherein the pivot mount allows the pivot arm strap to uniformly contact the aorta to hold the aorta on the aorta interface; depressing the pivot arm such that the pivot arm rotates around a dowel pin and the pivot arm strap moves away from the cannula body, wherein the dowel pin allows the pivot mount to operably connect to the pivot arm; placing the aorta interface in the aorta; releasing the pivot arm; tightening a cable tie around the pivot arm strap to hold the aorta in place around the aorta interface; and inserting the tapered fitting into an organ care system. - View Dependent Claims (21, 22)
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Specification