TWO-PIECE TRANSSEPTAL CANNULA, DELIVERY SYSTEM, AND METHOD OF DELIVERY
First Claim
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1. A cannula assembly, comprising:
- a flexible cannula body having distal and proximal ends with a lumen extending therebetween, the distal end including a receiving portion;
a transseptal tip having distal and proximal ends, the proximal end including an engaging portion operable to connect to the receiving portion of the flexible cannula body in vivo; and
first and second anchors coupled to the transseptal tip and configured to be deployed from a contracted state to an expanded state, the first and second anchors configured to engage opposite sides of a heart tissue in the expanded state.
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Abstract
A cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The cannula assembly includes a flexible cannula body having a proximal end and a distal end with a receiving portion, and a transseptal tip having a distal end and a proximal end with an engaging portion. First and second anchors are coupled to the transseptal tip and configured to be deployed from a contracted state to an expanded state. The engaging portion of the transseptal tip is operable to removably engage the receiving portion of the flexible cannula body in vivo.
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Citations
46 Claims
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1. A cannula assembly, comprising:
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a flexible cannula body having distal and proximal ends with a lumen extending therebetween, the distal end including a receiving portion; a transseptal tip having distal and proximal ends, the proximal end including an engaging portion operable to connect to the receiving portion of the flexible cannula body in vivo; and first and second anchors coupled to the transseptal tip and configured to be deployed from a contracted state to an expanded state, the first and second anchors configured to engage opposite sides of a heart tissue in the expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of implanting a cannula assembly within a heart tissue, the cannula assembly including a flexible cannula body having distal and proximal ends with a lumen extending therebetween, the distal end including a receiving portion, a transseptal tip having distal and proximal ends, the proximal end including an engaging portion operable to connect to the receiving portion of the flexible cannula body in vivo, and first and second anchors coupled to the transseptal tip, the first and second anchors configured to be deployed from a contracted state to an expanded state and to engage opposite sides of the heart tissue, the method comprising:
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(a) introducing the transseptal tip into the heart tissue; (b) directing the flexible cannula body to the transseptal tip; and (c) in vivo connecting the receiving portion of the flexible cannula body to the engaging portion of the transseptal tip. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 42, 43, 44, 45)
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40. An introducer assembly for introducing surgical devices into the vascular system, the introducer assembly comprising:
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an introducer set including a sheath introducer and a vascular dilator; a removable dilator having an attachment mechanism for removably attaching the sheath introducer and the vascular dilator; and a vascular introducer including a hub and a sheath extending distally from the hub, the vascular introducer operable to receive the removable dilator in a movable manner and to maintain a puncture through a vascular wall, wherein the hub of the vascular introducer further includes a seal and wherein the removable dilator and the vascular introducer are attached together with a frictional fit operable to prevent leakage of blood from the vascular system. - View Dependent Claims (41, 46)
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Specification