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US 12,114,907 B2Granted
Percutaneous coiled catheter design for gallbladder cryoablation
AssigneeMedtronic CryoCath LP
InventorNicolas Coulombe
Life of this patent
Estimating the term…
Abstract
A medical system for ablating tissue within a gallbladder having a gallbladder wall includes a medical device. The medical device includes a shaft having a proximal portion and a distal portion opposite the proximal portion, and an inflatable treatment element coupled to the distal portion of the shaft and transitionable between a first deflated free-form configuration and a second inflated coiled configuration.
Claims16
A medical device, comprising:
- a shaft having a proximal portion and a distal portion opposite the proximal portion;
- an inflatable treatment element coupled to the distal portion of the shaft and transitionable between a first deflated free-form configuration and a second inflated coiled configuration;
- and
- a fluid supply lumen disposed within the shaft and extending within the inflatable treatment element, the fluid supply lumen defining a port;
- wherein the fluid supply lumen is made of a flexible material configured to contour and match the shape of the inflatable treatment element when the inflatable treatment element is transitioned between the first deflated free-form configuration and the second inflated coiled configuration.
2 more elements
A medical device, comprising:
- a plurality of shafts each having a proximal portion and a distal portion opposite the proximal portion;
- an inflatable treatment element coupled to the distal portion of each shaft and transitionable between a first deflated free-form configuration and a second inflated coiled configuration;
- a fluid supply lumen disposed within each shaft and extending within the inflatable treatment element coupled to each respective shaft, each fluid supply lumen defining a port;
- and
- wherein each fluid supply lumen is composed of a flexible material configured to contour to the shape of each inflatable treatment element when transitioned between the first deflated free-form configuration and the second inflated coiled configuration.
2 more elements
A method of ablating an area of target tissue within a gallbladder having a gallbladder wall, the method comprising:
- positioning a medical device having an inflatable treatment element proximate to the area of target tissue, the inflatable treatment element being transitionable between a first deflated free-form configuration and a second inflated coiled configuration, the inflatable treatment element including a fluid supply lumen composed of a flexible material configured to contour and match the shape of the inflatable treatment element when transitioned between the first deflated free-form configuration and the second inflated coiled configuration;
- and
- circulating refrigerant within the inflatable treatment element such that the inflatable treatment element transitions to the second inflated coiled configuration and is in at least partial contact with an inner surface of the gallbladder wall.
Dependencies are inferred from the claim text.