Systems and methods for anchoring and restraining gastrointestinal prostheses
AssigneeMetaModix, Inc.
InventorsKedar R. Belhe, Werner Schwarz, Todd Stangenes
Life of this patent
Estimating the term…
Abstract
Systems and methods for anchoring and restraining gastrointestinal prostheses are disclosed. In various examples, the systems and methods include securing a gastrointestinal device within a patient's anatomy by extending an anti-migration anchor through a plurality of portions of the gastrointestinal device to couple together the plurality of portions of the gastrointestinal device. In some examples, the anti-migration anchor extends through tissue situated between the plurality of portions of the gastrointestinal device.
Claims18
A gastrointestinal implant system comprising:
- an implant configured to be implanted within a pylorus of a patient, the implant having a proximal portion, a distal portion, and a neck portion situated between the proximal and distal portions, the neck portion being configured to span a pyloric sphincter of the pylorus when implanted;
- and
- an anti-migration anchor including an elongate element, a first retention feature coupled to the elongate element, and a second retention feature coupled to the elongate element, the anti-migration anchor configured such that the elongate element is operable to span the neck portion of the implant such that the first retention feature is positionable proximal to the proximal portion of the implant and such that second retention feature is positionable distal to the distal portion of the implant, wherein the first and second retention features are configured to transition between delivery and deployed configurations, and wherein one or more of the first and second retention features are biased to transition to the delivery configuration when not constrained.
A method of securing a gastrointestinal implant within a pylorus of a patient, the method comprising:
- providing an implant having a proximal portion, a distal portion, and a neck portion situated between the proximal and distal portions;
- deploying the implant within the pylorus such that neck portion spans the pylorus with the proximal portion of the implant is situated proximal to the pylorus and the distal portion situated distal to the pylorus;
- providing an anti-migration anchor including an elongate element, a first retention feature coupled to the elongate element, and a second retention feature coupled to the elongate element, wherein one or more of the first and second retention features are biased to transition to a delivery configuration when not constrained;
- and
- after deploying the implant, deploying the anti-migration anchor such that the anti-migration anchor spans the neck portion of the implant and punctures the proximal and distal portions of the implant, and such that the first retention feature is situated proximal to the proximal portion of the implant and such that second retention feature is situated distal to the distal portion of the implant, including transitioning the first and second retention features between the delivery configuration and a deployed configuration.
An anti-migration anchor delivery system transitionable between a delivery configuration and a deployed configuration, the system comprising:
- a first catheter;
- a locator system coupled to the first catheter, the locator system including a locator capsule and a first extendable arm configured to extend radially outwardly from the locator capsule such that in the delivery configuration the first extendable arm is stowed within the locator capsule, and such that in the deployed configuration the first extendable arm projects radially outwardly from the locator capsule;
- and
- a second catheter coupled to the first extendable arm, the second catheter configured to deliver an anti-migration anchor to an implant deployed within an anatomy of a patient, wherein in the delivery configuration the second catheter is situated in a first radial position relative to the locator capsule and wherein in the deployed configuration the second catheter is situated in a second radial position relative to the locator capsule.
Dependencies are inferred from the claim text.