Stone collection device
First Claim
1. A medical device, comprising:
- an outer elongate member having a proximal end, a distal end, and a lumen extending therethrough;
an inner elongate member having a proximal end portion, a distal end portion, and a lumen extending therethrough, the inner elongate member disposed within the lumen of the outer elongate member and configured to be axially movable relative to the outer elongate member; and
an expandable cage-like scaffold, configured to he actuated between a substantially folded configuration and a substantially open configuration, having a substantially constant outer diameter over a length of the scaffold in the substantially open configuration, comprising;
a plurality of wires that cross each other at points;
a proximal end secured to the distal end of the outer elongate member; and
an unsecured distal end having an inwardly tapering framework including a central opening for passage of an object,wherein the inner elongate member is configured to be extendable through the expandable cage-like scaffold,wherein the inwardly tapering framework comprises at least one terminal wire end of the plurality of wires pointed proximally at a distal end of the expandable cage-like scaffold,wherein the inner elongate member is configured to provide suction against the object, via a distal opening of the inner elongate member, and urge the object proximally into the expandable cage-like scaffold for capture.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a medical device comprising an outer elongate member having a proximal end, a distal end, and a lumen extending therethrough; an inner elongate member disposed within the lumen of the outer elongate member and configured to be axially movable inside the lumen of the outer elongate member, the inner elongate member having a proximal end portion, a distal end portion, and a lumen extending therethrough; an expandable cage-like scaffold having a proximal end secured to the distal end of the outer elongate member and a distal end having an inwardly everted tapering framework, the cage-like scaffold composed of a plurality of wires that cross each other at points, and capable of being actuated between a substantially folded configuration and a substantially open configuration. Also disclosed is a method of employing the above disclosed device or variations thereof to capture and remove stones or stone fragments from the body'"'"'s lumen of a subject.
15 Citations
21 Claims
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1. A medical device, comprising:
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an outer elongate member having a proximal end, a distal end, and a lumen extending therethrough; an inner elongate member having a proximal end portion, a distal end portion, and a lumen extending therethrough, the inner elongate member disposed within the lumen of the outer elongate member and configured to be axially movable relative to the outer elongate member; and an expandable cage-like scaffold, configured to he actuated between a substantially folded configuration and a substantially open configuration, having a substantially constant outer diameter over a length of the scaffold in the substantially open configuration, comprising; a plurality of wires that cross each other at points; a proximal end secured to the distal end of the outer elongate member; and an unsecured distal end having an inwardly tapering framework including a central opening for passage of an object, wherein the inner elongate member is configured to be extendable through the expandable cage-like scaffold, wherein the inwardly tapering framework comprises at least one terminal wire end of the plurality of wires pointed proximally at a distal end of the expandable cage-like scaffold, wherein the inner elongate member is configured to provide suction against the object, via a distal opening of the inner elongate member, and urge the object proximally into the expandable cage-like scaffold for capture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A medical device, comprising:
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an outer elongate member having a proximal end, a distal end, and a lumen extending therethrough; an inner elongate member having a proximal end portion, a distal end portion, and a lumen extending therethrough, the inner elongate member disposed within the lumen of the outer elongate member; and an expandable cage-like scaffold, configured to be actuated between a substantially folded configuration and a substantially open configuration, having a substantially constant outer diameter over a length of the scaffold in the substantially open configuration, comprising; a plurality of wires that cross each other at points; a proximal end secured to the distal end of the outer elongate member; and an unsecured distal end having an inwardly tapering framework including a central opening for passage of an object, wherein the inner elongate member is configured to be longitudinally extendable and retractable through a mid-section of the expandable cage-like scaffold, wherein the inner elongate member is configured to provide suction against the object, via a distal opening of the inner elongate member, and urge the object proximally into the expandable cage-like scaffold for capture. - View Dependent Claims (21)
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Specification