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US 2010/0145304 A1Published application
Thermochemical ablation of bodily tissue
AssigneeRegents of the University of Minnesota
InventorErik N.K. Cressman
Life of this patent
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Abstract
Thermochemical ablation techniques may provide ablation of bodily tissue using chemical reaction energy.
Claims20
A thermochemical ablation system, comprising:
- a percutaneous fluid delivery cannula comprising first and second lumens extending from a proximal portion to a distal portion, the distal portion comprising a first side port in fluid communication with at least the first lumen and a second side port in fluid communication with at least the second lumen;
- a first reservoir that contains a first thermochemical ablation reagent so as to communicate the first thermochemical ablation reagent through the first lumen to the distal portion of the percutaneous fluid delivery cannula, at least a portion of the first thermochemical ablation reagent being deliverable out of the first side port;
- and
- a second reservoir that contains a second thermochemical ablation reagent so as to communicate the second thermochemical ablation reagent through the second lumen to the distal portion of the percutaneous fluid delivery cannula, at least a portion of the second thermochemical ablation reagent being deliverable out of the second side port to provide simultaneous radial dispersion and mixing of the first and second thermochemical ablation reagents at the distal portion.
1 more element
A device to ablate bodily tissue, comprising:
- a multi-lumen thermochemical ablation cannula to simultaneously infuse at least two thermochemical ablation reagents into targeted tissue proximate a distal portion of the cannula;
- the distal portion of the cannula comprising a plurality of fluid ports to dispense at least two thermochemical ablation reagents and thereby mix the at least two thermochemical ablation reagents proximate a distal portion of the cannula,
- wherein when the at least two thermochemical ablation reagents are dispensed from the plurality of fluid ports, the thermochemical ablation reagents mix with one another to generate an exothermic chemical reaction sufficient to ablate tissue.
A method for thermochemical ablation of targeted tissue, comprising:
- delivering a first thermochemical ablation reagent through a first lumen of a percutaneous injection needle;
- delivering a second thermochemical ablation reagent through a second lumen of the percutaneous injection needle;
- simultaneously infusing first and second thermochemical ablation reagents into targeted tissue to radially disperse and mix the first and second thermochemical ablation reagents at a distal portion of the injection needle.
Dependencies are inferred from the claim text.