Introducer/dilator with balloon protection and methods of use
First Claim
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1. A cannula introducer system, comprising:
- a cannula having a proximal end, a distal end, and a lumen therebetween;
an elongate shaft having proximal and distal ends, said shaft insertable through the lumen of the cannula;
a flexible sleeve mounted on the distal end of the shaft, wherein the sleeve is adapted to circumferentially cover the distal end of the cannula when the shaft is positioned within the lumen of the cannula; and
a filter operable from the distal end of the cannula.
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Abstract
An introducer system having an elongate shaft with proximal and distal ends. A flexible sleeve is mounted on the distal end of the shaft and is adapted to circumferentially cover the outer surface of a distal end of a cannula when the shaft is positioned within a lumen of the cannula. The introducer system has dilation capabilities which facilitates insertion of a medical device into a vessel or organ. Methods of using the devices herein are also disclosed.
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Citations
19 Claims
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1. A cannula introducer system, comprising:
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a cannula having a proximal end, a distal end, and a lumen therebetween;
an elongate shaft having proximal and distal ends, said shaft insertable through the lumen of the cannula;
a flexible sleeve mounted on the distal end of the shaft, wherein the sleeve is adapted to circumferentially cover the distal end of the cannula when the shaft is positioned within the lumen of the cannula; and
a filter operable from the distal end of the cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for protecting a patient from embolization during an open or minimally invasive surgical procedure, comprising:
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inserting a distal end of a cannula into the aorta, the cannula having a lumen, an expandable filter mounted at the distal end, and a flexible sleeve covering the filter;
removing the sleeve from the expandable filter through the lumen of the cannula; and
expanding the filter to capture embolic material in the aorta. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification