Surgical device for removal of tumors in e.g. gastrointestinal tract, has fluid control unit that generates fluid flow of less fluid pressure after preset period after activation of electrode device

摘要

A liquid jet device (1) has a nozzle (3) at distal end (7) of a pipe section (5). An electrode device (9) cuts and/or coagulates a tissue by using high-frequency current. An electrode control device has radio frequency (RF) generator for generating the high-frequency current. A fluid control unit for dissection and/or needleless injection is configured such that at the beginning of activation of electrode device does not generate a fluid flow and generates the fluid flow of less fluid pressure after a preset period after activation of electrode device. An independent claim is included for method for operating surgical device.