Abstract: A connector includes a first port, a second port, a first sealing member and a second sealing member. The first port and the first pipe sleeve portion are connected with each other such that at least a part of the first port and at least a part of the first pipe sleeve portion engage with each other by fitting and overlap with each other, and a first sealing member is positioned between two overlapping portions. The second port and the second pipe sleeve portion are connected with each other such that at least a part of the second port and at least a part of the second pipe sleeve portion engage with each other by fitting and push each other, and a second sealing member is positioned between two pushing portions.

Abstract: An insufflation device includes: a gas feeding conduit for feeding a predetermined gas which is fed from a gas supply source into a body cavity; and a processor. The processor measures a gas feeding time period until a predetermined amount of the gas is fed according to a set pressure, measures a pressure in the body cavity, calculates a gas discharging time period based on the set pressure and a measurement result of the measured pressure; and adjusts a gas feeding flow rate of the gas according to a difference between the measured gas feeding time period and the calculated gas discharging time period.

Abstract: An endoscope system includes a gas feeding apparatus that feeds carbon dioxide, and a light source apparatus provided with an air pump for supplying air. The endoscope system feeds the carbon dioxide or the air from a distal end of an endoscope when a gas/liquid feeding button provided to the endoscope is operated. The endoscope system includes a pressure meter and a processor. The pressure meter is provided inside the gas feeding apparatus and configured to detect a pressure of the carbon dioxide. The processor is configured to perform control for stopping feeding of the air by the air pump when determining that, after the carbon dioxide is fed by an operation of the gas/liquid feeding button, the pressure of the carbon dioxide detected by the pressure meter reaches a predetermined threshold.

Abstract: A gas feeding apparatus configured to supply the gas to a lumen of a patient through a gas feeding conduit provided in an endoscope, the gas feeding apparatus including: a flow rate sensor configured to measure a flow rate of the gas in the gas feeding conduit; and a control circuit configured to time-sequentially calculate an integrated amount of the gas fed to the lumen in a period from a first timing to a second timing, the first timing being a timing when the gas starts to be fed from the gas feeding conduit to the lumen by an operation of a gas feeding button of the endoscope, the second timing being different from the first timing. The control circuit controls a notification unit to activate an alarm, when the integrated amount of the gas reaches the first threshold.

Abstract: A gas feeding apparatus communicating with a gas feeding source that feeds a predetermined gas and configured to supply the gas to a lumen of a patient through a gas feeding conduit provided in an endoscope includes: a gas feeding bottle provided between the gas feeding apparatus and the gas feeding conduit of the endoscope, and having the gas reserved; and a control circuit configured to detect a timing of start of decrease in a state where a predetermined value is kept, and configured to control a gas feeding amount from the gas feeding bottle to the gas feeding conduit, at the detected timing.

Abstract: An insufflation system includes an insufflation device for supplying gas to a body cavity, and a suction device for suctioning the gas from the body cavity through a suction conduit at a suction flow rate. The insufflation device includes a flow rate sensor for measuring a gas feeding flow rate, a pressure sensor for measuring body cavity internal pressure, a first on-off valve for controlling the gas feeding flow rate, a second on-off valve for opening and closing the suction conduit, and a processor for opening the second on-off valve and controlling the first on-off valve to feed the gas at an amount when a first target gas feeding flow rate calculated from difference between the body cavity internal pressure and insufflation target pressure is lower than a threshold flow rate, the amount being obtained by adding the suction flow rate to the first target gas feeding flow rate.

Abstract: A connection unit for air feeding tube is a connection unit to which an air feeding tube is connectable and fixable and which includes: a first pipe having an opening through which gas from the air feeding tube flows in; a second pipe that is configured to be arrangeable substantially parallel to a surface of a bed used in an examination, and includes an opening through which the gas flows out; and an air feeding flow path which is formed to include the two openings and through which the gas is fed. When the air feeding tube is fixed to the connection unit for air feeding tube and is used, a part of the air feeding flow path for the gas is formed so as to pass through an area located at a position opposite to a gravitational direction with respect to a central axis of the second pipe.

Abstract: An insufflation device includes: a gas feeding conduit through which a gas is supplied to a body cavity of a patient; a first open/close valve mounted on the gas feeding conduit, the first open/close valve being an electromagnetic valve configured to control a flow rate of the gas flowing through the gas feeding conduit by pulse width modulation; and a controller, the controller being configured to: detect a current value of a current which flows through the first open/close valve; calculate a resistance value of the first open/close valve based on the current value; determine a duty ratio of a pulse signal applied to the first open/close valve based on the resistance value and a target gas feeding flow rate of the gas supplied to a body cavity; and supply the pulse signal, an effective voltage of which is adjusted, to the first open/close valve.

Abstract: A connector includes a first port, a second port, a first sealing member and a second sealing member. The first port and the first pipe sleeve portion are connected with each other such that at least a part of the first port and at least a part of the first pipe sleeve portion engage with each other by fitting and overlap with each other, and a first sealing member is positioned between two overlapping portions. The second port and the second pipe sleeve portion are connected with each other such that at least a part of the second port and at least a part of the second pipe sleeve portion engage with each other by fitting and push each other, and a second sealing member is positioned between two pushing portions.

Abstract: An insufflation device includes: a gas feeding conduit for feeding a predetermined gas which is fed from a gas supply source into a body cavity; and a processor. The processor measures a gas feeding time period until a predetermined amount of the gas is fed according to a set pressure, measures a pressure in the body cavity, calculates a gas discharging time period based on the set pressure and a measurement result of the measured pressure; and adjusts a gas feeding flow rate of the gas according to a difference between the measured gas feeding time period and the calculated gas discharging time period.

Abstract: A gas feeding apparatus includes first and second temperature sensors for measuring a temperature of an atmosphere that are disposed in a housing. The apparatus may also include a panel, a protrusion protruding forward from the panel, a first opening provided in the panel in a vicinity of the first temperature sensor, and a second opening provided in the panel in a vicinity of the second temperature sensor. The first temperature sensor and the second temperature sensor are separated by a predetermined distance in a horizontal direction and disposed below the protrusion.

Abstract: A pipe for fluid supply includes: a pipe configured integrally with an air feeding conduit and a pressure measurement conduit; inlets of the air feeding conduit and the pressure measurement conduit; outlets of the air feeding conduit and the pressure measurement conduit; and tube connection portions provided at the respective inlets in the pipe such that an angle between a vertical direction of the respective inlets and a vertical direction of each the respective outlets is 30° to 60°.

Abstract: A pneumoperitoneum apparatus includes: a gas feeding conduit; a gas feeding flow rate variable section; a first pressure measurement section coupled with the gas feeding conduit; a conduit for pressure measurement; a conduit for pressure measurement coupling part coupled with the conduit for pressure measurement; a second pressure measurement section coupled with the conduit for pressure measurement coupling part, and configured to measure pressure in the conduit for pressure measurement; a gas leaking part configured to communicate the gas in the conduit for pressure measurement to an outside to leak the gas in the conduit by a predetermined leakage; and a control section configured to determine that the conduit for pressure measurement is crushed when pressure measured by the second pressure measurement section is smaller than a predetermined threshold.

Abstract: A surgical apparatus includes: a pipe sleeve section through which gas can circulate; a first seal section provided on a proximal end side of the pipe sleeve section; a second seal section provided on an insertion opening side of the pipe sleeve section; and a sheath provided with, between the first seal section and the second seal section, a hole portion through which gas circulates.

Abstract: A circulation smoke discharging system includes: a circulation smoke discharging apparatus configured to receive setting output information of a treatment instrument apparatus including a treatment instrument, feed predetermined gas, and perform circulation smoke discharging by sucking smoke generated in a body cavity and gas in the body cavity; a pump for the circulation smoke discharging; an input voltage determination unit configured to determine a pump input voltage corresponding to a circulation flow rate of the circulation smoke discharging in accordance with the setting output information of the treatment instrument apparatus; and a circulation flow rate control unit configured to control the circulation flow rate by outputting the pump input voltage to the pump.

Abstract: A pneumoperitoneum apparatus includes: a gas feeding conduit; a gas feeding flow rate variable section; a first pressure measurement section coupled with the gas feeding conduit; a conduit for pressure measurement; a conduit for pressure measurement coupling part coupled with the conduit for pressure measurement; a second pressure measurement section coupled with the conduit for pressure measurement coupling part, and configured to measure pressure in the conduit for pressure measurement; a gas leaking part configured to communicate the gas in the conduit for pressure measurement to an outside to leak the gas in the conduit by a predetermined leakage; and a control section configured to determine that the conduit for pressure measurement is crushed when pressure measured by the second pressure measurement section is smaller than a predetermined threshold.

Abstract: An insufflation apparatus includes a gas-feeding-conduit connecting section for connecting a conduit that feeds a predetermined gas to a subject, a first conduit that connects a gas-feeding-source connecting section and the gas-feeding-conduit connecting section, a suction-conduit connecting section for connecting a conduit that sucks the predetermined gas from an inside of the subject, a pump for circulating the predetermined gas to the subject, a conduit for circulation that connects the suction-conduit connecting section and the pump, a second conduit that connects a suction-source connecting section and the conduit for circulation, and a control section that controls a switching unit to operate in a circulation operation mode for circulating the predetermined gas to the subject via the pump and a suction operation mode for sucking the predetermined gas to the suction source side via the second conduit.

Abstract: A body cavity internal pressure regulating device is connected to an endoscope including a suction channel used for suction under manual control and a forceps channel used to insert an instrument into a body cavity, and the body cavity internal pressure regulating device regulates a body cavity internal pressure. A gas supply unit performs a gas supply through the forceps channel. A suction detection unit detects that suction is being performed under manual control through the suction channel. A control unit terminates the gas supply being performed by the gas supply unit according to a result of detection by the suction detection unit when the control unit detects that suction is being performed under manual control through the suction channel while the gas supply unit is performing a gas supply.

Abstract: An over tube comprises an over tube body that has an inner diameter fitting over the outer diameter of an insertion part, and is flexible and expandable in the direction of the outer diameter, a gas supply port provided on the base end side of the over tube body, an expansion/contraction part that is formed integrally with the gas supply port, provided to communicate from the base end side to a predetermined position on a distal end side, and can expand in the direction of the outer diameter by injecting a gas from the gas supply port, and at least one channel that is provided between the inner and the outer diameters of the over tube body, and penetrates from the distal end of the over tube through the base end side.