Welding of gallbladder tissue with a pulsed 2.15 microns thulium-holmium-chromium:YAG laser.

Abstract:

:Percutaneous endoscopic approaches to cholelithiasis would be facilitated by methods for welding gallbladder tissues. We evaluated the bursting pressure and histologic appearance of canine gallbladder tissue welded with a thulium-holmium-chromium:YAG (THC:YAG) laser producing a 2.15 microns pulsed output. The tissue absorption characteristics at this wavelength as well as the pulsed nature of the output permit tissue welding with limited collateral thermal damage. The THC:YAG is compatible with a flexible fiberoptic delivery system. Bursting strengths of the welded junctions averaged 42 mm Hg, which is above physiologically encountered pressures. Histologic sections of the bonded tissues revealed tissue fusion and limited thermal injury to the surrounding tissue. We feel that THC:YAG laser welding may be a useful technique in the clinical development of percutaneous endoscopic biliary surgery.

journal_name

Lasers Surg Med

authors

Popp HW,Oz MC,Bass LS,Chuck RS,Trokel SL,Treat MR

doi

10.1002/lsm.1900090211

subject

Has Abstract

pub_date

1989-01-01 00:00:00

pages

155-9

issue

2

eissn

0196-8092

issn

1096-9101

journal_volume

9

pub_type

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