Patent ID: 8182419
Filing Date: 2012-05-22
Classification: A61B

Abstract:
1. A hand endoscope comprising: an insertion portion to be inserted into a body cavity; a hand operation portion continuously provided from a proximal end side of the insertion portion, wherein an operator holds the hand operation portion in hand; and a suction section that performs suction from a distal end of the insertion portion, wherein the suction section comprises: a cylinder in which a gas is compressed and filled; an air-feed section that feeds the gas in the cylinder to the distal end of the insertion portion: a nozzle unit that generates a negative pressure inside the nozzle unit by jetting out the gas in the cylinder; the nozzle unit including; a liquid receiver tank communicated with the distal end of the insertion portion via a first pipe and tubes, and connected with the nozzle unit via a second pipe, the negative pressure inside the nozzle unit being transmitted to the liquid receiver tank, and the nozzle unit is arranged between the cylinder and the liquid receiver tank, and the exhaust port in the nozzle unit releases the gas into external air; an air feeding unit is entirely formed into a thin and long rectangular shape, the air feeding unit is disposed so that a longitudinal direction of the air feeding unit becomes orthogonal to a longitudinal direction of the hand operation portion when the air feeding unit is attached to an air feeding unit connector, and the air feeding unit connector is disposed on a proximal end side of the hand operation portion on a side opposite to a suction button and/or an air feeding button.