TY - JOUR
T1 - Tissue effects of a new laparoscopic carbon dioxide laser probe
AU - Tadir, Y.
AU - Karni, Z.
AU - Fisch, B.
AU - Rosenberg, C.
AU - Ovadia, J.
PY - 1989
Y1 - 1989
N2 - The effects of CO2 laser beam delivered through a new laparoscopic probe on rabbit uteri is presented. This device has an outer diameter of 4.9 mm and can be delivered through most of the standard operative laparoscopic accessories. Two probes with miniature zinc selenide lenses of 6.5 mm and 17 mm back focal length attached at the distal end were tested. Through each probe, constant 0.5-second pulses and power levels of 5, 10, and 15 W were applied in three different lens-to-target distances. Measurements of beam spot diameters and microscopic crater characteristics revealed significant differences as a result of minor shifting of lens-target distance. From 7 to 9 mm beyond the focal plane and at power levels of 5 to 10 W, negligible tissue effects could be detected. This was defined as an 'optical back-stop' effect. A new application mode using an easily maneuverable probe for cutting and coagulating [focusing/defocusing] effects increases the options available for operative laparoscopy.
AB - The effects of CO2 laser beam delivered through a new laparoscopic probe on rabbit uteri is presented. This device has an outer diameter of 4.9 mm and can be delivered through most of the standard operative laparoscopic accessories. Two probes with miniature zinc selenide lenses of 6.5 mm and 17 mm back focal length attached at the distal end were tested. Through each probe, constant 0.5-second pulses and power levels of 5, 10, and 15 W were applied in three different lens-to-target distances. Measurements of beam spot diameters and microscopic crater characteristics revealed significant differences as a result of minor shifting of lens-target distance. From 7 to 9 mm beyond the focal plane and at power levels of 5 to 10 W, negligible tissue effects could be detected. This was defined as an 'optical back-stop' effect. A new application mode using an easily maneuverable probe for cutting and coagulating [focusing/defocusing] effects increases the options available for operative laparoscopy.
UR - http://www.scopus.com/inward/record.url?scp=0024344575&partnerID=8YFLogxK
U2 - 10.1016/S0015-0282(16)60741-0
DO - 10.1016/S0015-0282(16)60741-0
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AN - SCOPUS:0024344575
SN - 0015-0282
VL - 51
SP - 1046
EP - 1049
JO - Fertility and Sterility
JF - Fertility and Sterility
IS - 6
ER -