Surgery – Instruments – Light application
Reexamination Certificate
2008-03-04
2008-03-04
Johnson, III, Henry M. (Department: 3739)
Surgery
Instruments
Light application
C128S898000, C606S010000, C606S013000
Reexamination Certificate
active
11066959
ABSTRACT:
A method and apparatus for treating in situ biologic tissue include identifying a patient with a condition susceptible to treatment by forming a lesion in the tissue and accessing a surface of the tissue. A lesion formation tool is positioned against the accessed surface. The tool includes an optical fiber for guiding a coherent waveform of a selected wavelength to a fiber tip for discharge of light energy from the fiber tip. The wavelength is selected for the light energy to penetrate a full thickness of the tissue to form a volume of necrosed tissue through the thickness of the tissue. The tool further includes a guide tip coupled to the fiber tip. The guide tip is adapted to have a discharge bore aligned with the fiber tip to define an unobstructed light pathway from the fiber tip to the tissue surface. The guide tip is further adapted to be placed against the tissue surface with the guide tip slidable along the tissue surface in atraumatic sliding engagement with the discharge bore opposing the tissue surface. The lesion formation tool is manipulated to draw the guide tip over the tissue surface in a pathway while maintaining the discharge bore opposing the tissue surface to form a transmural lesion in the tissue extending a length of the pathway.
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Brucker Gregory G.
Svenson Robert H.
Johnson, III Henry M.
Medical CV, Inc.
Merchant & Gould P.C.
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