Ablation devices utilizing exothermic chemical reactions, system including same, and methods of ablating tissue using same

摘要

An ablation device includes a handle assembly including a distal end and a probe extending distally from the distal end of the handle assembly. The probe includes a heat-transfer portion and at least one fluid-flow path in fluid communication with the heat-transfer portion. The handle assembly includes at least one fluid reservoir in fluid communication with the at least one fluid-flow path and at least one apparatus configured to cause fluid flow between the at least one fluid reservoir and the heat-transfer portion. The probe is configured to apply thermal energy released by an exothermic chemical reaction that occurs when fluid from the at least one fluid reservoir is caused to flow to the heat-transfer portion.

主权项

1. A method for ablating tissue, the method comprising:
positioning an ablation device adjacent tissue to be treated, the ablation device including:
a probe including a heat-transfer portion in communication with at least one of a first fluid-flow path and a second fluid-flow path, the first fluid-flow path in communication with a first fluid reservoir, the second fluid-flow path in communication with a second fluid reservoir, and the heat-transfer portion in fluid communication with a third fluid reservoir, contacting a first fluid, from within the first fluid reservoir, with a second fluid, from within the second fluid reservoir, to generate an exothermic reaction; receiving a product of the exothermic reaction in the heat-transfer portion; delivering thermal energy released from the exothermic reaction to the tissue to be treated; and receiving the product of the exothermic reaction in the third fluid reservoir.