Luminal structure anchoring devices and methods
AssigneeBoston Scientific Scimed, Inc.
InventorsKenneth F. Binmoeller, Corbett W. Stone
Life of this patent
Estimating the term…
Abstract
The present invention relates to a device for endoscopy or endosonography-guided transluminal interventions whereby two luminal structures in the body may be drawn toward each other and a fluid conduit formed in between. The device may have a hollow central member to which is coupled a distal retention member and in one embodiment a proximal retention member. The retention members may each be positioned inside one of the luminal structures and expanded from a first condition to an expanded second condition having an increased radius. The length of the central member may be shortened and its diameter expanded to approximate the two retention members and thereby the luminal structures.
Claims20
A medical device for forming a fluid pathway, comprising:
- a hollow member defining a longitudinally extending lumen configured to receive a penetrating member of a delivery catheter for deployment of the medical device, the hollow member comprising a middle portion and a first retention member at a first end portion of the hollow member adjacent a first end of the middle portion, and the hollow member configured to move from a first configuration to a second configuration such that:
- a length of the middle portion decreases;
- a diameter of the lumen increases;
- and
- the first retention member radially expands into a first curved surface, the first curved surface configured to atraumatically engage a first tissue, wherein, in the second configuration, terminal ends of the first retention member bend away from the first curved surface and at least a portion of the first retention member extends over the middle portion.
A system for forming a fluid pathway, comprising:
- a penetrating member;
- and
- a hollow elongate member comprising a first portion and a second portion, the elongate member defining a lumen extending along a longitudinal axis thereof, the penetrating member extendable through the lumen, the longitudinal axis extending along a first plane, and the elongate member configured to self-expand from a first configuration to a second configuration such that:
- a length of the second portion decreases;
- a diameter of the lumen increases;
- and
- the first portion of the elongate member extends radially outwardly into at least one surface configured to atraumatically engage with a tissue.
A drainage device, comprising:
- a cylindrical member defining a lumen for passage of fluid, the cylindrical member receivable over a penetrating member of a delivery catheter for deployment of the drainage device and comprising an end portion and a hollow portion extending from the end portion, the cylindrical member expandable from a first configuration to a second configuration such that:
- a longitudinal length of the hollow portion decreases;
- a diameter of the lumen increases;
- and
- the end portion bends radially outward to form a first segment, a second segment, and a curved segment configured to atraumatically appose a tissue, wherein the first segment is substantially aligned with the hollow portion, the second segment is radially spaced apart from the first segment, and the curved segment extends between the first and second segments and substantially transverse to the first segment, and
- wherein the second segment bends away from the curved segment and the bend comprises a smaller diameter than a maximum diameter of the curved segment.
Dependencies are inferred from the claim text.