Thoracoscopic transmyocardial revascularization handpiece assembly
AssigneePLC Medical Systems, Inc.
InventorsCharles Christopher Negus, Stephen J. Linhares
Life of this patent
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Abstract
A thoracoscopic transmyocardial revascularization handpiece assembly for a medical laser system which includes a barrel which fits between the patient's ribs, a handpiece which fits between the ribs, a contacting surface on one end of the handpiece with a width which fits between the patient's ribs, and a contacting surface which has a length larger than the width resulting in a contact surface with a surface area which is greater than the cross-sectional area of the handpiece and which yet still fits between the patient's ribs.
Claims19
A thoracoscopic transmyocardial revascularization handpiece assembly for a medical laser system, comprising:
- an elongate barrel having a narrow width sized to fit between the ribs of a patient and having a first passage therethrough for conducting a surgical laser beam;
- an elongate handpiece extending from said barrel and having a similarly narrow width commensurate with said barrel and having a second passage therethrough connecting with said first passage for conducting a surgical laser beam;
- a contacting surface on a distal end of said handpiece for contacting the wall of the patient's heart;
- said contacting surface having a width in a first dimension which is approximately that of said handpiece for fitting between the ribs of a patient and having a width in a second dimension which is larger to effect an area of said contacting surface which is substantially larger than the cross-sectional area of said handpiece to provide a more stable platform to maintain perpendicularity between the laser beam and the wall of the heart;
- an aperture substantially centered in said contacting surface communicating with said second passage for transmitting the laser beam;
- and
- focusing means in said barrel for focusing the laser beam proximate to the aperture to ablate the tissue of the heart wall and create a hole to the interior heart chamber.
The thoracoscopic transmyocardial with said second passage for transmitting the laser beam;
- and
- focusing means in said barrel for focusing the laser beam proximate to the aperture to ablate the tissue of the heart wall and create a hole to the interior heart chamber.
A thoracoscopic transmyocardial revascularization handpiece assembly for a medical laser system, comprising:
- an elongate barrel having a narrow width sized to fit between the ribs of a patient and having a first passage therethrough for conducting a surgical laser beam;
- an elongate handpiece having a similarly narrow width commensurate with said barrel and having a second passage therethrough connecting with said first passage for conducting a surgical laser beam;
- means for coupling the proximal end of said handpiece to the distal end of said barrel;
- a contacting surface on the distal end of said handpiece for contacting the wall of the patient's heart;
- said contacting surface having a width in a first dimension which is approximately that of said handpiece for fitting between the ribs of a patient and having a width in a second dimension which is larger to effect an area of said contacting surface which is substantially larger than a cross-sectional area of said handpiece to provide a more stable platform to maintain perpendicularity between the laser and the wall of the heart;
- an aperture substantially centered in said contacting surface communicating with said second passage for transmitting the laser beam;
- and
- focusing means in said barrel for focusing the laser beam proximate to the aperture to ablate the tissue of the heart wall and create a hole to the interior heart chamber.
A thoracoscopic transmyocardial revascularization handpiece assembly for a medical laser system, comprising:
- an elongate barrel having a narrow width sized to fit between the ribs of a patient and having a first passage therethrough for conducting a surgical laser beam;
- an elongate handpiece extending from said barrel and having a similarly narrow width commensurate with said barrel and having a second passage therethrough connecting with said first passage for conducting a surgical laser beam;
- a knurled contacting surface on a distal end of said handpiece for contacting the wall of the patient's heart, said contacting surface being parallel to the longitudinal axis of said handpiece and having a width in a first dimension which is approximately that of said handpiece for fitting between the ribs of a patient and having a width in a second dimension which is larger to effect an area of said contacting surface which is substantially larger than a cross-sectional area of said handpiece to provide a more stable platform to maintain perpendicularity between the laser and the wall of the heart;
- an aperture substantially centered in said contacting surface communicating with said second passage for transmitting the laser beam;
- and
- focusing means in said barrel for focusing the laser beam proximate to the aperture to ablate the tissue of the heart wall and create a hole to the interior heart chamber.
Dependencies are inferred from the claim text.