BALLOON CATHETER HAVING A REGROOMING SHEATH AND METHOD FOR COLLAPSING AN EXPANDED MEDICAL DEVICE
First Claim
1. A method of using a balloon catheter to perform a medical procedure and recover an expanded frame of a expandable device in a patient'"'"'s body lumen, comprising:
- a) advancing within the patient'"'"'s body lumen a balloon catheter having an elongated shaft with an inflation lumen, an inflatable balloon secured to a distal shaft section such that an interior of the balloon is in fluid communication with the inflation lumen, a distal tip configured to slidably receive at least a portion of the expandable device to collapse the expanded frame to a collapsed configuration, and a regrooming sheath releasably locked to the elongated shaft and slidably disposed on the shaft in an unlocked configuration;
b) inflating the balloon in the patient'"'"'s body lumen at a treatment location longitudinally adjacent to the expanded frame to perform a medical procedure, deflating the balloon, and regrooming the deflated balloon by slidably displacing the regrooming sheath and balloon relative to one another to position the balloon within the regrooming sheath, thereby reducing the profile of the deflated balloon to a regroomed configuration;
c) collapsing the expanded frame by sliding the balloon catheter out of a distal end of the regrooming sheath, such that the balloon in the regroomed configuration is positioned distal to the regrooming sheath and the distal tip of the balloon catheter is advanced over at least a portion of the expandable device; and
d) slidably displacing the balloon catheter, with the expandable device in the collapsed configuration therein, to reposition or remove the frame from the patient'"'"'s body lumen.
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Accused Products
Abstract
A method of using a balloon catheter to perform a medical procedure at a treatment site in a patient'"'"'s body lumen and to recover an expanded device, such as an embolic protection device, which is adjacent to the treatment site in the body lumen. The inflated balloon is deflated and regroomed to a low profile configuration in the body lumen, and the balloon catheter is advanced distally from the treatment site to collapse the expanded device (e.g., embolic protection filter) within the balloon catheter. The balloon catheter has a recovery distal tip for collapsing an expanded device, and has a regrooming sheath member configured to slidably receive the deflated balloon therein to regroom the balloon.
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Citations
20 Claims
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1. A method of using a balloon catheter to perform a medical procedure and recover an expanded frame of a expandable device in a patient'"'"'s body lumen, comprising:
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a) advancing within the patient'"'"'s body lumen a balloon catheter having an elongated shaft with an inflation lumen, an inflatable balloon secured to a distal shaft section such that an interior of the balloon is in fluid communication with the inflation lumen, a distal tip configured to slidably receive at least a portion of the expandable device to collapse the expanded frame to a collapsed configuration, and a regrooming sheath releasably locked to the elongated shaft and slidably disposed on the shaft in an unlocked configuration; b) inflating the balloon in the patient'"'"'s body lumen at a treatment location longitudinally adjacent to the expanded frame to perform a medical procedure, deflating the balloon, and regrooming the deflated balloon by slidably displacing the regrooming sheath and balloon relative to one another to position the balloon within the regrooming sheath, thereby reducing the profile of the deflated balloon to a regroomed configuration; c) collapsing the expanded frame by sliding the balloon catheter out of a distal end of the regrooming sheath, such that the balloon in the regroomed configuration is positioned distal to the regrooming sheath and the distal tip of the balloon catheter is advanced over at least a portion of the expandable device; and d) slidably displacing the balloon catheter, with the expandable device in the collapsed configuration therein, to reposition or remove the frame from the patient'"'"'s body lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of using a balloon catheter to perform a medical procedure and recover an expanded embolic protection device in a patient'"'"'s body lumen, comprising:
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a) advancing within the patient'"'"'s body lumen a balloon catheter having an elongated shaft with an inflation lumen, an inflatable balloon on a distal shaft section with an interior of the balloon is in fluid communication with the inflation lumen, a distal tip configured to slidably receive at least a portion of an expanded section of the embolic protection device to collapse the expanded section to a collapsed configuration, and a regrooming sheath releasably locked on the elongated shaft and slidably disposed thereon in an unlocked configuration; b) inflating the balloon from a noninflated configuration to an inflated configuration to radially expand a stent in the patient'"'"'s body lumen at a treatment location longitudinally adjacent to the expanded section of the embolic protection device, and deflating the balloon to a deflated configuration, the deflated balloon having folds of excess material, and regrooming the deflated balloon by slidably displacing the regrooming sheath and balloon relative to one another to position the balloon within the regrooming sheath, to reduce the profile of the deflated balloon to a regroomed configuration; c) collapsing the expanded embolic protection device by sliding the balloon catheter out of a distal end of the regrooming sheath, such that the distal tip of the balloon catheter is advanced over at least a portion of the expanded section of the embolic protection device, and such that the balloon in the regroomed configuration is positioned distal to the regrooming sheath and distal to the stent; and d) withdrawing the balloon catheter, with the embolic protection device in the collapsed configuration therein, proximally through the stent, to reposition or remove the embolic protection device from the patient'"'"'s body lumen, such that an outer surface of the deflated balloon in the regroomed configuration is exposed to but radially spaced from the stent as the balloon catheter is withdrawn through the stent. - View Dependent Claims (10, 11, 12, 13)
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14. A balloon catheter configured for recovery of an expanded device from within a patient'"'"'s body lumen, comprising:
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a) an elongated shaft with an inflation lumen and a device lumen, and a distal tip which defines a distal end of the device lumen and which is configured to slidably receive the expanded device therein to collapse the device to a collapsed configuration, wherein the device lumen inner diameter increases at the distal tip; b) an inflatable balloon on a distal shaft section, having an interior in fluid communication with the inflation lumen such that the balloon has an inflatable section; and c) a regrooming sheath releasably locked on the elongated shaft and slidably disposed thereon in an unlocked configuration, comprising a tubular body with a lumen, the lumen having at least a distal end section which has an inner diameter less than a transverse dimension of the deflated balloon and less than an outer diameter of the distal tip, and which is configured to slidably receive the deflated balloon therein to reduce the profile of the deflated balloon to a regroomed configuration, and the regrooming sheath having a length less than the balloon catheter shaft such that in a fully retracted configuration the distal end of the regrooming sheath is proximal to the inflatable section of the balloon. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification