Handle for an ablation device

摘要

A handle for an ablation device, the handle comprising a positioning control handle part adapted to be coupled to a positioning catheter of the ablation device and adapted to position the positioning catheter in an object, and an ablation control handle part adapted to be coupled to an ablation catheter of the ablation device and adapted to ablate material of the object using the ablation catheter, wherein the positioning control handle part and the ablation control handle part are adapted to be separable from one another.

主权项

1. A cryoablation device comprising:
a positioning control handle part coupled to a positioning catheter of the cryoablation device and adapted to position the positioning catheter in an object; an ablation control handle part coupled to an ablation catheter of the cryoablation device to ablate material of the object using the ablation catheter via application of a cooling agent as an ablation medium; an intermediate part positioned between the positioning control handle part and the ablation control handle part; and a set of concentric tubes extending through the position control handle part, the intermediate part and the ablation control handle part including a supply lumina for slidably guiding a concentric cooling agent supply and a draining lumina larger than the supply lumina for draining exhausted cooling agent, wherein the positioning control handle part and the ablation control handle part are operable in a first configuration in which the positioning control handle part and the ablation control handle part are operable together, and are operable in a second configuration in which the positioning control handle part and the ablation control handle part are spaced from each other and at least one of the positioning control handle part and the ablation control handle part are operable independently from each other, is spaced from and operable independently from the other one of the positioning control handle part and the ablation control handle part, wherein in the first configuration the positioning catheter is positionable at a defined position in the object and in the second configuration a shape of the ablation catheter is adjustable by movement of the ablation control handle part relative to the positioning control handle part for changing the shape of the ablation catheter from an essentially linear to an essentially loop shaped configuration relative to a longitudinal axis of the ablation catheter and to bring the ablation catheter into contact with a portion of the object to be ablated, wherein the ablation catheter comprises a shape memory material having a substantially loop shaped configuration as a stored shape, and wherein the concentric tubes are fixedly attached to the positioning control handle part and the intermediate part so that the concentric tubes slide relative to each other when the positioning control handle part and the ablation control handle part are shifted relative to each other.