Method of emboli protection using a low profile catheter
First Claim
1. A method, comprising:
- providing a catheter comprising an expandable member and a tubular member, the expandable member connected to the tubular member, the tubular member comprising a lumen having an elongate member therein;
inserting the catheter into a blood vessel;
varying the relative position of the tubular member and the elongate member, while at least a portion of the elongate member remains within the tubular member, to enable the expansion of the expandable member; and
frictionally engaging bends in the elongate member with an interior surface of the tubular member to maintain the expandable member in a desired state of expansion.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein is a low profile catheter valve comprising a movable sealer portion positioned within the inflation lumen of a catheter. The sealer portion forms a fluid tight seal with the inflation lumen by firmly contacting the entire circumference of a section of the inflation lumen. The sealer portion may be positioned proximally of a side-access inflation port on the catheter, to establish an unrestricted fluid pathway between the inflation port and an inflatable balloon on the distal end of the catheter. As desired, the clinician may move the sealer portion to a position distal of the inflation port, thereby preventing any fluid from being introduced into or withdrawn from the balloon via the inflation port.
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Citations
37 Claims
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1. A method, comprising:
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providing a catheter comprising an expandable member and a tubular member, the expandable member connected to the tubular member, the tubular member comprising a lumen having an elongate member therein;
inserting the catheter into a blood vessel;
varying the relative position of the tubular member and the elongate member, while at least a portion of the elongate member remains within the tubular member, to enable the expansion of the expandable member; and
frictionally engaging bends in the elongate member with an interior surface of the tubular member to maintain the expandable member in a desired state of expansion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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providing an emboli protection catheter having an expandable member mounted on a tubular member, the tubular member having a lumen in which an elongate member is disposed;
inserting the catheter into a blood vessel;
varying the relative position of the tubular member and the elongate member, while at least a portion of the elongate member remains within the tubular member, to enable the expansion of the expandable member; and
maintaining the expandable member in an expanded state to prevent migration of emboli, while exchanging a plurality of treatment catheters over the tubular member of the emboli protection catheter. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of emboli protection in a blood vessel, comprising:
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being providing a tube with an expandable member thereon, the expandable member being expandable between a nonexpanded state, which permits delivery of the expandable member through the vessel, and an expanded state in which the expandable member prevents migration of emboli;
providing an elongate member, the elongate member being at least partially disposed within the tube when the expandable member is in its expanded state and also when the expandable member is in its nonexpanded state;
positioning the expandable member within the vessel in the nonexpanded state;
actuating the expandable member so that the expandable member expands to its expanded state to prevent migration of emboli in the vessel; and
maintaining the expandable member in its expanded state by maintaining the position of the tube relative to the elongate member;
wherein the expandable member is maintained in at least one of the nonexpanded and expanded states through frictional contact between a proximal section of the elongate member and the tube. - View Dependent Claims (18, 19, 20, 21)
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22. A method, comprising:
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providing a catheter comprising an expandable member and a tubular member, the expandable member connected to the tubular member, the tubular member comprising a lumen having an elongate member therein, the elongate member having a proximal end portion and a distal end portion;
inserting the catheter into a blood vessel;
varying the relative position of the tubular member and the elongate member, while at least a portion of the elongate member remains within the tubular member, to enable the expansion of the expandable member; and
frictionally contacting at least a portion of the proximal end portion of the elongate member with an interior surface of the tubular member to maintain the expandable member in a desired state of expansion. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A method, comprising:
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providing a catheter comprising an expandable member and a tubular member, wherein the expandable member is connected to the tubular member, and the tubular member comprises a proximal section, a distal section, and a lumen for receiving an inner member therein, the inner member having a proximal end portion and a distal end portion;
inserting the catheter into a blood vessel;
expanding said expandable member; and
contacting at least a portion of the inner member with an interior surface of the tubular member in the proximal section of the tubular member to maintain the expandable member in a desired state of expansion. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37)
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Specification