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:
- an expandable anchor at a distal end of the hollow member, and
- a shoulder at a proximal end of the hollow member,
- the expandable anchor configured to move from a first configuration to a second configuration such that:
- a length of the hollow member decreases when in the second configuration, and
- the expandable anchor radially expands into one or more curved surfaces when in the second configuration, the one or more curved surfaces configured to atraumatically engage a first tissue,
- wherein the shoulder is configured to engage a second tissue to providing resistance to further penetration of the hollow member into the first tissue.
A system for forming a fluid pathway, comprising:
- a penetrating member for deployment of a hollow member;
- and
- a hollow member defining a longitudinally extending lumen configured to receive the penetrating member, the hollow member comprising:
- an expandable anchor at a distal end of the hollow member, and
- a shoulder at a proximal end of the hollow member,
- the expandable anchor configured to move from a first configuration to a second configuration such that:
- a length of the hollow member decreases when in the second configuration, and
- the expandable anchor radially expands into one or more curved surfaces when in the second configuration, the one or more curved surfaces configured to atraumatically engage a first tissue,
- wherein the shoulder is configured to engage a second tissue to providing resistance to further penetration of the hollow member into the first 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, the cylindrical member comprising:
- an expandable anchor at a first end of the cylindrical member, and
- a shoulder at a second end of the cylindrical member,
- the expandable anchor configured to move from a first configuration to a second configuration such that:
- a length of the cylindrical member decreases when in the second configuration,
- and the expandable anchor radially expands into one or more curved surfaces when in the second configuration, the one or more curved surfaces configured to atraumatically engage a first tissue,
- wherein the shoulder is configured to engage a second tissue to providing resistance to further penetration of the cylindrical member into the first tissue.
Dependencies are inferred from the claim text.