Introducer and perfusion cannula
First Claim
1. A multi-access perfusion cannula comprising:
- (a) an elongated tubular cannula body including a plurality of pivoting access legs;
(b) a downstream directed perfusion lumen within said elongated tubular cannula body;
(c) an upstream directed access conduit within said elongated tubular cannula body configured for passage of a catheter or instrument; and
(d) an intra-luminal flow control regulator, said intra-luminal flow control regulator capable of at least partially occluding a vessel.
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Accused Products
Abstract
The present invention discloses a multi-access cannula for use in a variety of surgical procedures, particularly for use in the course of performing conventional open-chest and peripheral access cardiopulmonary bypass (CPB). The multi-access cannula is capable of being inserted through a single puncture site with a percutaneous tip. At the appropriate depth of insertion, a closure seal may be engaged at the point of entry to secure the positioning of the cannula and prevent leakage of blood from the incision. Once the cannula is at the appropriate position the cannula provides a multiplicity of procedural options for the surgeon. For example, when approaching through the ascending aorta, the multi-access cannula enables the simultaneous passage of various fluids and multiple catheters or instruments in opposing directions within the lumen of the aortic arch through a single insertion site.
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Citations
36 Claims
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1. A multi-access perfusion cannula comprising:
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(a) an elongated tubular cannula body including a plurality of pivoting access legs;
(b) a downstream directed perfusion lumen within said elongated tubular cannula body;
(c) an upstream directed access conduit within said elongated tubular cannula body configured for passage of a catheter or instrument; and
(d) an intra-luminal flow control regulator, said intra-luminal flow control regulator capable of at least partially occluding a vessel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A multi-access perfusion cannula comprising:
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(a) an elongated tubular cannula body including a plurality of articulating access legs;
(b) a downstream directed perfusion lumen within said elongated tubular cannula body;
(c) an upstream directed access conduit within said elongated tubular cannula body configured for passage of a catheter or instrument; and
(d) a sealing mechanism having a proximal portion and a distal portion, said proximal portion covering an insertion site on an outside surface of a vessel wall by securing a distal surface of said proximal portion of said sealing mechanism against the outside surface of the vessel, said distal portion of said sealing mechanism lying intraluminally of the vessel wall with a proximal surface of said distal portion of said sealing mechanism bearing against the inside surface of the vessel. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A multi-access perfusion cannula comprising:
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(a) an elongated tubular cannula body including a plurality of pivoting access legs;
(b) a downstream directed perfusion lumen within said elongated tubular cannula body;
(c) an upstream directed access conduit within said elongated tubular cannula body configured for passage of a catheter or instrument; and
(d) a sealing mechanism for sealing an insertion site of said cannula body into a vessel, having a proximal portion and a distal portion, said proximal portion covering the insertion site on an outside surface of a vessel wall by securing a distal surface of said proximal portion of said sealing mechanism against the outside surface of the vessel, said distal portion of said sealing mechanism lying intraluminally of the vessel and covering the insertion site on an inside surface of the vessel wall with a proximal surface of said distal portion of said sealing mechanism bearing against the inside surface of the vessel. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A multi-access perfusion cannula comprising:
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(a) an elongated tubular cannula body including a plurality of articulating access legs;
(b) a downstream directed perfusion lumen within said elongated tubular cannula body;
(c) an upstream directed access conduit within said elongated tubular cannula body configured for passage of a catheter or instrument; and
(d) a sealing mechanism for sealing an insertion site of said cannula body into a vessel, having a proximal portion and a distal portion, said proximal portion covering the insertion site on an outside surface of a vessel wall by securing a distal surface of said proximal portion of said sealing mechanism against the outside surface of the vessel, said distal portion of said sealing mechanism lying intraluminally of the vessel and covering the insertion site on an inside surface of the vessel wall with a proximal surface of said distal portion of said sealing mechanism bearing against the inside surface of the vessel. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification