Inoshandiswa endoscopically pamwe chete ne monopolar electrosurgical current kuwana gastrointestinal mucosal tissue biopsies uye yekubvisa sessile polyps.New streamlined catheter yakagadzirirwa kusimudzira mashandiro ekupfuura nemu tortuous anatomyYakasiyana kapu yakagadzirirwa akasiyana mucosa / submucosa