1993 Volume 42 Pages 43-47
The biopsy forceps, Model FB-40K of Olympus Optical Co, is an instrument that has been improved to increase the ease and accuracy of biopsies being taken from tangential lesions of the esophagus and stomach. To this end, a V-notch is made in its cup and a swing mechanism is provided.
Having an opportunity to use this up to the minute biopsy forceps, we compared it with conventional instruments (FB-21K, FB-25K) . As a result, it was shown that the FB-40K surpassed conventional instruments in accuracy of orientation and ease of manipulation, but appeared to have some difficulty in taking out the forceps from the biopsy channel of the scope in a few instances and cause a little more bleeding on biopsy.
Sections of biopsy specimens that were taken from the esophagus and the posterior wall of the gastric corpus by the FB-40K and conventional instruments in 30 and 27 cases, respectively, were compared with respect to surface area and depth. It was shown that the FB-40K had obtained better specimen as to better the size and depth of lesions, when used to take biopsies from flat lesions of the esophagus and posterior wall lesions of the gastric corpus.
