Exothermic reaction-based ablation
AssigneeMedtronic Ireland Manufacturing Unlimited Company
InventorsManoj Kumar Singh, Stefan S. Tunev
Life of this patent
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Abstract
Various embodiments of ablation elements are disclosed herein, where the ablation element includes a biodegradable shell. Calcium chloride is retained within the biodegradable shell. When the ablation element is delivered to a target location within the body of a patent, the biodegradable shell degrades to release the calcium chloride. A reaction between the released calcium chloride and bodily fluids will generate heat, which in turn will ablate biological material in proximity to the reactive region.
Claims17
An ablation element for a biological material, the ablation element comprising:
- a biodegradable shell comprising first and second end walls and an annular sidewall, wherein the first and second end walls are spaced along a length dimension of the biodegradable shell and with the annular sidewall extending between the first and second end walls;
- and
- calcium chloride retained within the biodegradable shell,
- wherein at least a first length section of the annular sidewall has a smaller wall thickness than each of the first and second end walls.
3-7. (canceled)
An ablation system comprising:
- an expandable balloon;
- a first feed lumen extending into an interior of the balloon;
- a second feed lumen extending into the interior of the balloon;
- an exhaust lumen extending into the interior of the balloon;
- a first feed source connected with the first lumen, wherein the first feed source comprises calcium chloride;
- and
- a second feed source connected with the second lumen, wherein the second feed source comprises a liquid.
11-14. (canceled)
An ablation system comprising:
- an elongate body;
- a biodegradable shell disposed within or coupled to the elongate body;
- and
- calcium chloride retained within the biodegradable shell.
An ablation system comprising:
- an expandable member configured to be disposed within a vessel of a patient;
- a biodegradable shell disposed about at least a portion of an outer perimeter of the expandable member;
- and
- calcium chloride retained at least within the biodegradable shell.
Dependencies are inferred from the claim text.