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US 9,414,879 B2Granted
Catalyzed exothermic ablation device
AssigneeCook Medical Technologies LLC
InventorJeffry S. Melsheimer
Life of this patent
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Abstract
The invention relates to devices, systems, and methods for heating tissue, including ablating a tumor, using the catalyzed heat of decomposition of hydrogen peroxide solutions. A hydrogen peroxide solution is contacted with a catalyst to decompose the hydrogen peroxide and heat the distal tip of a catheter to a temperature effective to ablate a target tissue.
Claims19
A system for catalyzed exothermic heating of tissue comprising:
- a source of hydrogen peroxide solution;
- a source of neutralizing solution;
- a catalyst in fluid communication with the source of hydrogen peroxide;
- and
- a catheter, the catheter comprising a proximal end, a distal end, a distal tip, and an enclosed heat chamber located at the distal end of the catheter, the enclosed heat chamber being in fluid communication with the catalyst and the source of neutralizing solution;
- the source of neutralizing solution being located external to the catheter.
3 more elements
A method of heating tissue with a thermal tip catheter comprising the steps of:
- advancing a catheter comprising a catalyst and a distal tip into an operative position within a patient;
- contacting a solution of hydrogen peroxide with the catalyst to heat the distal tip of the catheter, the hydrogen peroxide solution comprising a concentration of hydrogen peroxide having a heat of decomposition sufficient to heat the distal tip to a temperature effective to ablate a tissue of the patient following contacting with the catalyst;
- and
- heating the tissue of the patient with the distal tip of the catheter sufficient to ablate the tissue.
1 more element
Dependencies are inferred from the claim text.