Other

Hidehiro Yamamoto

Tsuyoshi Ito

Shunichiro Ninomiya

Hiroki Shimpo

An internal pressure adjustment system includes a gas supply line that supplies incombustible gas to a housing space of a robot, and an exhaust line that exhausts gas from the housing space. The internal pressure adjustment system further includes an on-off valve of a gas pressure driven type that switches between opening and closing of the exhaust line in accordance with the gas supply pressure. The exhaust line is opened in response to an increase in the gas supply pressure and the exhaust line is closed in response to a decrease in the gas supply pressure.

Internal pressure adjustment of a robot

This small-diameter endoscope surgical instrument comprises: an inner pipethat has an outer diameter equal to that of a small-diameter endoscopeto be used, that is used for inserting the small-diameter endoscope surgical instrument into a body, and that is replaced with the small-diameter endoscopeafter insertion thereof; a guide pipewhich is configured to have the small-diameter endoscope or the inner pipe inserted therethrough and which supports the small-diameter endoscope or the inner pipe so as to be movable in an axial direction; and a treatment pipewhich is configured to have the guide pipe inserted therethrough to support the guide pipe so as to be movable in the axial direction, and which has, at the leading end thereof, a treatment means such as an electrode, a blade, or a hook, wherein each of the small-diameter endoscope, inner pipe, guide pipe, and treatment pipe has an independent operation part at the proximate end thereof, and thus the rotation angle and the position in the axial direction thereof can be changed. The present invention enables, with a simple configuration, gripping or fixing of tissues, electrocautery, electrocoagulation, ablation, mobilization, separation, or traction of tissues, and further enables removal of blood clots, etc., stuck to a hook during surgery, and a sample extraction for biopsy.

Small-Diameter endoscope surgical instrument

An endoscope power supplying appliance comprising an operation unit, a cylinder unit and an electrode that is used by inserting an endoscope, wherein the electrode is set at the distal end of the cylinder unit and the operation unit at the other end, an optical lens portion of the endoscope inserted into the power supplying appliance is capable of protruding beyond the end of the power supplying appliance, and the endoscope can move along an axial direction of the power supplying appliance. Further the endoscope power supplying appliance of this invention is effective for treatment such as coagulation of microvessels performed under endoscope and in particular blocking operation of sympathetic nerves in the chest region performed under endoscope, only one minimized skin incision allows the operation. Because it is not necessary to insert the appliance or pull it out of the body during the operation, frictional irritation to the incised portion is only caused at the time of insertion and extraction of the appliance before and after the operation, which minimizes the damage of the incised portion. Consequently the patient does not necessarily hospitalize for a long time and may leave hospital and go home on the day of operation.

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Hyogo, Japan

Hidehiro Yamamoto