TY - JOUR
T1 - A New Peroral Cholecystoscopy Method Utilizing a Shape Memory Alloy Bending Catheter‐Report of Two Cases
AU - YAMAO, Kenji
AU - NAKAZAWA, Saburo
AU - YOSHINO, Jyunji
AU - EVUI, Kazuo
AU - YAMACHIKA, Hitoshi
AU - KANEMAKI, Naoto
AU - FUJDIOTO, Masao
AU - MIYOSHI, Hironao
AU - IWASE, Teruhiko
AU - TAKI, Norihito
PY - 1995/7
Y1 - 1995/7
N2 - For the purpose of improving the ease and reliability of catheter insertion into the cystic duct and gallbladder, we developed a new combination method utilizing an ultrathin fiberscope (miniscope, 0.8 mm), a guidewire (0.25 inches) and a shape memory alloy, bendable, catheter (SMA catheter, 2.6 mm). The main feature of the SMA catheter, which incorporates a micro‐actuator, is that its tip can be bent by remote control as desired. The SMA catheter could be inserted successfully into the cystic duct using a guide‐wire under direct miniscope vision in two patients with gallbladder lesions. Moreover, after the miniscope had been inserted through the SMA catheter into the gallbladder, its maneuverability enhanced observation of the mucosa. This combination method should afford new diagnostic and therapeutic approaches to gallbladder disease.
AB - For the purpose of improving the ease and reliability of catheter insertion into the cystic duct and gallbladder, we developed a new combination method utilizing an ultrathin fiberscope (miniscope, 0.8 mm), a guidewire (0.25 inches) and a shape memory alloy, bendable, catheter (SMA catheter, 2.6 mm). The main feature of the SMA catheter, which incorporates a micro‐actuator, is that its tip can be bent by remote control as desired. The SMA catheter could be inserted successfully into the cystic duct using a guide‐wire under direct miniscope vision in two patients with gallbladder lesions. Moreover, after the miniscope had been inserted through the SMA catheter into the gallbladder, its maneuverability enhanced observation of the mucosa. This combination method should afford new diagnostic and therapeutic approaches to gallbladder disease.
KW - peroral cholecystoscopy
KW - shape memory alloy
KW - ultrathin fiberscope
UR - http://www.scopus.com/inward/record.url?scp=0029131102&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029131102&partnerID=8YFLogxK
U2 - 10.1111/j.1443-1661.1995.tb00179.x
DO - 10.1111/j.1443-1661.1995.tb00179.x
M3 - Article
AN - SCOPUS:0029131102
SN - 0915-5635
VL - 7
SP - 301
EP - 305
JO - Digestive Endoscopy
JF - Digestive Endoscopy
IS - 3
ER -