Expandable sheath tubing
First Claim
Patent Images
1. A catheter sheath for retrieving an object in a body, comprising:
- an expandable distal end, the expandable distal end being a tube of one or more layers that includes at least one slit that extends throughout at least one layer of the tube, wherein a portion of one of the at least one slit being is not generally parallel to the longitudinal axis of the tube;
a proximal end including a port for the passage of objects into the catheter sheath; and
a tubular percutaneous delivery component located between the proximal and distal ends that creates an uninterrupted conduit between the expandable distal end and the proximal end.
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Accused Products
Abstract
An expandable catheter accommodates a medical device that is being removed from a body with a larger diameter than the catheter. The same catheter may be used to reposition a device within the body to an alternative delivery site. A catheter or sheath may be used to deliver a medical device, surgical instrument, or biological sample.
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Citations
21 Claims
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1. A catheter sheath for retrieving an object in a body, comprising:
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an expandable distal end, the expandable distal end being a tube of one or more layers that includes at least one slit that extends throughout at least one layer of the tube, wherein a portion of one of the at least one slit being is not generally parallel to the longitudinal axis of the tube;
a proximal end including a port for the passage of objects into the catheter sheath; and
a tubular percutaneous delivery component located between the proximal and distal ends that creates an uninterrupted conduit between the expandable distal end and the proximal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 19, 20, 21)
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11. A catheter sheath for delivery and retrieval of objects during medical procedures, comprising:
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a percutaneous shaft component; and
an expandable distal end of at least one layer attached to the end of the percutaneous shaft component, including a braided layer constructed of braided material that expands axially when a portion of the expandable distal end is contracted longitudinally. - View Dependent Claims (12, 13, 14)
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15. A method of recovery of an object in a biological vas, comprising:
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introducing of a percutaneous catheter sheath, the catheter sheath including a proximal end, an expandable distal end, and a tubular percutaneous component, the proximal end including a port for the passage of objects in the catheter sheath, the tubular percutaneous component located between the proximal and distal ends that creates an uninterrupted conduit between the expandable distal end and the proximal end, and the expandable distal end being a tube of one or more layers that includes at least one slit that extends throughout at least one layer of the tube, wherein a portion of one of the at least one slit being is not generally parallel to the longitudinal axis of the tube; and
recovering the object in the biological vas at least partially into the expandable distal end while causing the expandable distal end to partially expand. - View Dependent Claims (16, 17, 18)
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Specification