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AssigneeCircuLite, Inc.
InventorsRobert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabeck, Robert G. Hudgins
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A cannula assembly, further comprising a cannula body for directing blood from the heart of a patient, having distal and proximal ends and a lumen therebetween. A tip coupled to the distal end of the body, the tip having an opening. A pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system. The lumen of the cannula body further comprises a first inner diameter at the proximal end and a second inner diameter at the distal end, the first inner diameter being larger than the second inner diameter. A tapered portion defined as a decrease in inner diameter from the first inner diameter to the second inner diameter between the proximal and distal ends, the tapered portion configured to prevent cavitation of the blood within the cannula.
A method of implanting a circulatory assist system for assisting a flow of blood through a patient circulatory system, the circulatory assist system comprising a cannula assembly for directing blood from a heart of a patient, the cannula assembly comprising a flexible cannula body including a proximal portion and a distal portion and a lumen therebetween, a tip coupled with the distal portion of the flexible cannula body, and first and second anchors coupled with the tip and each of the first and second anchors being configured to be deployed from a contracted state to an expanded state, wherein the first and second anchors are configured to engage opposite sides of a heart tissue in the expanded state;
A method of accessing a heart of a patient with an anchoring guide-element, wherein the anchoring guide-element includes an elongate main body having a lengthwise central axis, and an anchoring portion on a distal end, and the method comprising:
A method of accessing a heart of a patient, the method comprising:
A method of crossing a tissue barrier, the method comprising:
Dependencies are inferred from the claim text.