Dual wavelength laser ablation systems for MRI-guided ablation procedures and related devices and methods
AssigneeMedtronic Navigation, Inc.
InventorsChristine Drown, Rebecca Vincelette, Roopali Shah, Nicole Barney, Benjamin Ewing
Life of this patent
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Abstract
Laser ablation devices and related systems and methods may have laser outputs with multiple wavelengths. Laser ablation devices may include a laser energy source that can emit two or more laser outputs with different wavelengths. Some laser ablation devices include a processor to control the laser energy source to cause the laser energy source to emit a target wavelength blend with the laser outputs.
Claims20
A laser ablation system comprising:
- a laser energy source configured to emit two or more laser outputs with different wavelengths;
- a laser applicator coupled to the laser energy source via a laser fiber, the laser applicator to output laser radiation at a tissue of an ablation site;
- and
- a processor to:
- monitor temperatures across tissue zones of the tissue at the ablation site, the tissue zones of the tissue at the ablation site comprising a target ablation zone and a protected area tissue zone, wherein the target ablation zone comprises a target tissue to be ablated, and wherein the protected area tissue zone comprises tissue that is not to be ablated;
- and
- control the laser energy source to emit at least one laser output of the two or more laser outputs to apply thermal energy across the ablation site using the different wavelengths, wherein emitted laser outputs are chosen based on a wavelength and current monitored temperatures across each of the tissue zones of the tissue at the ablation site.
A laser ablation method, comprising:
- inserting a laser applicator into a desired region of treatment comprising a tissue of an ablation site;
- emitting, by a laser energy source configured to emit two or more laser outputs with different wavelengths, a laser energy to apply thermal energy at the tissue of the ablation site;
- monitoring, by a processor, temperatures across tissue zones of the tissue at the ablation site, the tissue zones of the tissue at the ablation site comprising a target ablation zone and a protected area tissue zone, wherein the target ablation zone comprises a target tissue to be ablated, and wherein the protected area tissue zone comprises tissue that is not to be ablated;
- and
- controlling, by the processor, the laser energy source to emit at least one laser output of the two or more laser outputs to apply thermal energy across the ablation site using the different wavelengths, wherein the at least one laser output emitted is chosen based on a wavelength and current monitored temperatures across each of the tissue zones of the tissue at the ablation site.
A non-transitory computer-readable medium including instructions that when executed by one or more processors of a tissue ablation system cause the tissue ablation system to:
- monitor temperatures across tissue zones of tissue at an ablation site, the tissue zones of the tissue at the ablation site comprising a target ablation zone and a protected area tissue zone, wherein the target ablation zone comprises a target tissue to be ablated, and wherein the protected area tissue zone comprises tissue that is not to be ablated;
- and
- control a laser energy source that is configured to emit two or more laser outputs with different wavelengths to emit, from a laser applicator coupled to the laser energy source, at least one laser output of the two or more laser outputs to apply thermal energy across the ablation site using the different wavelengths, wherein the at least one laser output emitted is chosen based on a wavelength and current monitored temperatures across each of the tissue zones of the tissue at the ablation site.
Dependencies are inferred from the claim text.