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US 2026/0060682 A1Published application
Flow control valve
AssigneeBoston Scientific Scimed, Inc.
InventorsMichael Walsh, Darren Curran, Otto Van Der Kooij, Daniel Tuck, Javier Palomar-Moreno, Jeff Gray, Martyn Folan, Emma J. Mooney, Enda Hannon
Life of this patent
Estimating the term…
Abstract
The present disclosure relates generally to the field of medical devices and establishing fluid communication between body lumens. In particular, the present disclosure relates to devices and methods for establishing a controlled flow or access passage between body lumens.
Claims20
A medical device, comprising:
- an elongate tubular body comprising a proximal portion, a distal portion, and a length therebetween, the elongate tubular body defining a lumen along the length;
- the elongate tubular body having an unexpanded configuration and an expanded configuration, wherein the proximal portion expands into a proximal retention member and the distal portion expands into a distal retention member, leaving a length of a saddle region extending therebetween;
- and
- an expandable member deliverable separately from the elongate tubular body and removably disposable around the saddle region and along the length of a portion of the saddle region;
- wherein:
- the expandable member has a non-expanded configuration configured to constrict at least a portion of the saddle region, forming a constricted portion of the saddle region, and is selectively expandable from the non-expanded configuration to an expanded configuration to allow passage of materials therethrough, and returnable to the non-expanded configuration after the materials are no longer within the saddle region, and is configured to be removable to allow the saddle region to move to a fully non-constrained position;
- and
- the proximal retention member and the distal retention member extend radially from the saddle region to define respective radially-extending surfaces generally perpendicular to a circumference of the elongate tubular body and configured to engage a respective tissue wall to at least limit migration of the medical device with respect to the tissue wall.
5 more elements
A system for controlling fluid communication between a first body portion and a second body portion, the system comprising:
- a medical device comprising:
- an elongate tubular body comprising a proximal portion, a distal portion, and a length therebetween, the elongate tubular body defining a lumen along the length;
- and
- an expandable member disposed around the saddle region and along the length of a portion of the saddle region;
- and
- a delivery catheter defining a lumen configured to deliver the medical device within a patient;
- wherein:
- the distal portion of the elongate tubular body is delivered from the delivery catheter by extending out of the delivery catheter lumen to expand radially outwardly from the saddle region to define a radially-extending surface generally perpendicular to a circumference of the elongate tubular body and configured to contact a distal region of body tissue;
- the proximal portion of the elongate tubular body is delivered by extending out of the delivery catheter lumen to expand radially outwardly from the saddle region to define a radially-extending surface generally perpendicular to a circumference of the elongate tubular body and configured to contact a proximal region of body tissue with the saddle region of the elongate tubular body extending between the distal portion and the proximal portion of the elongate tubular body;
- the expandable member is delivered separately from the elongate tubular body and moved onto the saddle region of the elongate tubular body when the elongate tubular body has been extended out of the lumen of the delivery catheter;
- and
- the expandable member is configured to constrict at least a portion of the length of the saddle region and is selectively expandable to allow passage of materials therethrough and to constrict again thereafter.
9 more elements
A method of controlling fluid communication between a first body portion and a second body portion, the method comprising:
- extending an elongate tubular body through a tissue wall of a first body portion and through a tissue wall of a second body portion;
- deploying a radially extending surface of a distal portion of the elongate tubular body against the tissue wall of the first body portion extending generally perpendicular to a circumference of the elongate tubular body;
- deploying a radially extending surface of a proximal portion of the elongate tubular body against the tissue wall of the second body portion extending generally perpendicular to a circumference of the elongate tubular body, with a saddle region of the elongate tubular body extending between the distal portion and the proximal portion of the elongate tubular body;
- delivering an expandable member separately from the elongate tubular body and moving the expandable member onto the saddle region of the elongate tubular body;
- and
- selectively causing the expandable member to expand from a first configuration to allow passage of material therethrough, and to retract to the first configuration once the material is no longer therein.
3 more elements
Dependencies are inferred from the claim text.