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US 5,147,354 AGranted
Mid-infrared laser endoscope
AssigneeCoherent, Inc.
InventorsTheodore A. Boutacoff, David M. Buzawa, Thomas S. Nelsen
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Abstract
A Ho:YAG laser is coupled to a needle tip through a flexible, fiber optical cable for performing endoscopic and arthroscopic surgery.
Claims9
A method of performing an endoscopic procedure comprising the steps of:
- generating a laser beam having a wavelength of between 1.8 and 2.2 microns;
- directing the beam into one end of a fiber optic cable, with the other end of the fiber optic cable defining the delivery end thereof;
- positioning the delivery end of the fiber optic cable adjacent the tissue to be ablated by the laser beam;
- and
- irrigating the tissue with a liquid medium as it is being ablated by the laser beam.
2 more elements
A method of performing an endoscopic procedure comprising the steps of:
- generating a laser beam having a wavelength of between 1.8 and 2.2 microns;
- directing the beam into one end of a fiber optic cable, with the other end of the fiber optic cable defining the delivery end thereof;
- positioning the delivery end of the fiber optic cable adjacent the tissue to be ablated by the laser beam;
- and
- ablating the tissue with the laser beam while the tissue is maintained in a fluid field.
2 more elements
A method of performing a surgical procedure comprising the steps of:
- providing a fiber optic cable with an input end and a delivery end, with the fiber optic cable being surrounded by an elongated tubular member;
- generating a laser beam having a wavelength of between 1.8 and 2.2 microns;
- directing the beam into the input end of the fiber optic cable;
- positioning the delivery end of the fiber optic cable adjacent the tissue to be ablated by the laser beam;
- and
- ablating the tissue with the laser beam while the tissue is maintained in a fluid field.
3 more elements
Dependencies are inferred from the claim text.