Abstract: A laryngeal mask is provided with an outer tube and a connector, having a base end in which is formed a first connecting portion capable of being connected to an artificial respirator and a leading end in which is formed a ventilation opening, the outer tube and the connector having a communication passage formed therein that communicates between the first connecting portion and the ventilation opening, a ring-shaped cuff capable of tightly adhering to a tracheal opening of a patient trachea as a result of inflating in a state where the ring-shaped cuff is inserted to a predetermined insertion position, and hyoid bone-contacting portions and protruding laterally from the outer tube so as to contact from above a site in a pharyngeal portion of the patient corresponding to a hyoid bone of the patient in a state where the ring-shaped cuff is inserted to the insertion position.

Abstract: A laryngeal mask is provided with an outer tube and a connector, having a base end in which is formed a first connecting portion capable of being connected to an artificial respirator and a leading end in which is formed a ventilation opening, the outer tube and the connector having a communication passage formed therein that communicates between the first connecting portion and the ventilation opening, a ring-shaped cuff capable of tightly adhering to a tracheal opening of a patient trachea as a result of inflating in a state where the ring-shaped cuff is inserted to a predetermined insertion position, and hyoid bone-contacting portions and protruding laterally from the outer tube so as to contact from above a site in a pharyngeal portion of the patient corresponding to a hyoid bone of the patient in a state where the ring-shaped cuff is inserted to the insertion position.

Abstract: A clean and inexpensive medical manipulator device can be provided in which a risk of failure caused by current leakage or disconnection is eliminated and reliability is higher than in a manipulator device using an electrically driven actuator or electric motor. The medical manipulator device includes a stage section 3 that can hold a medical instrument 2; a plurality of actuators 4 each linked at one end to the stage section 3; and a base section 5 linked to the other end of each of the plurality of actuators 4 and serving as a base for the plurality of actuators 4, wherein each of the actuators 4 causes the medical instrument 2 and the stage section 3 to displace with respect to the base section 5 by extending or contracting in the longitudinal direction of the actuator 4 in response to a pressure of a liquid 6.

Abstract: Provided is a injection equipment capable of alleviating the force required of a user to inject a medical liquid. A housing chamber S1 for extrusion and a housing chamber S2 for injection are mutually connected so that, when one of the chambers S1, S2 expands, the other one of the chambers contracts. As a result of switching a switching valve 9 to an open position in a state where at least a predetermined amount of the medical liquid is filled in the housing chamber S2, the housing chamber S2 for injection is contracted based on the expansion of the housing chamber S1 for extrusion according to the discharge pressure of the medical liquid pump 2 so as to deliver a predetermined amount of medical liquid.

Abstract: A brain cooling device is provided to cool the brain sufficiently to the subcortical tissue in a short time. The device includes a cuff (3) capable of storing therein a cooled fluid and placeable in the esophagus (H1) of the patient (H) when inserted orally or transnasally. A tube (2) extends from the cuff (3) for infusing the fluid into the cuff (3) placed in the esophagus (H1) from outside the body of the patient H and discharging the fluid from the cuff (3). The cuff (3) has flexibility so as to inflate or deflate in response to infusion or discharge of the fluid and is configured in such a manner that when the fluid is infused therein while placed in the esophagus (H1), the cuff (3) that has been inflated comes into close contact with the inner wall (H4) of the esophagus (H1).

Abstract: An object is to provide a medical liquid infusion apparatus suitable for a portable use and capable of suppressing an abrupt change in flow rate even when the environmental temperature rises. A medical liquid infusion apparatus 1 is provided with a driving portion 2 and configured to infuse a medical liquid inside a medical liquid container 3 to a patient by applying a pressure to the medical liquid container 3 using a driving force of the driving portion. The driving portion 2 includes a compressed gas cylinder 4 filled with a compressed gas, and it is configured in such a manner that the driving force is generated by the pressure inside the compressed gas cylinder 4.

Abstract: A clean and inexpensive medical manipulator device can be provided in which a risk of failure caused by current leakage or disconnection is eliminated and reliability is higher than in a manipulator device using an electrically driven actuator or electric motor. The medical manipulator device includes a stage section 3 that can hold a medical instrument 2; a plurality of actuators 4 each linked at one end to the stage section 3; and a base section 5 linked to the other end of each of the plurality of actuators 4 and serving as a base for the plurality of actuators 4, wherein each of the actuators 4 causes the medical instrument 2 and the stage section 3 to displace with respect to the base section 5 by extending or contracting in the longitudinal direction of the actuator 4 in response to a pressure of a liquid 6.

Abstract: Disclosed is a receptacle for use with a medical suction device which is equipped with a cover body and an external case for detachably holding and air-tightly surrounding the receptacle and a patient-side tube for introducing waste liquid into the receptacle, and designed to create a negative pressure in both an interior space of the cover body and the external case and an interior space of the receptacle so as to allow waste liquid to be sucked into the receptacle through the patient-side tube. The receptacle has an air-pervious/liquid-impervious element having air perviousness and liquid imperviousness. The air-pervious/liquid-impervious element at least partly constitutes a portion of the receptacle to be surrounded by the cover body and the external case.

Abstract: Disclosed is a medical liquid meter (10) for use with a medical liquid feeding device (30) including an expandable container (31), an inlet port (32) for supplying a medical liquid into the expandable container (31) therethrough, and a feed duct (33) for feeding to a patient the medical liquid discharged from one end of the expandable container (31). The medical liquid meter (10) comprises a weight-measuring mechanism (1). The weight of the medical liquid feeding device (30) is measured using the weight-measuring mechanism (1) so as to quantify a remaining amount of the medical liquid stored in the expandable container (31).

Abstract: A brain cooling device is provided to cool the brain sufficiently to the subcortical tissue in a short time. The device includes a cuff (3) capable of storing therein a cooled fluid and placeable in the esophagus (H1) of the patient (H) when inserted orally or transnasally. A tube (2) extends from the cuff (3) for infusing the fluid into the cuff (3) placed in the esophagus (H1) from outside the body of the patient H and discharging the fluid from the cuff (3). The cuff (3) has flexibility so as to inflate or deflate in response to infusion or discharge of the fluid and is configured in such a manner that when the fluid is infused therein while placed in the esophagus (H1), the cuff (3) that has been inflated comes into close contact with the inner wall (H4) of the esophagus (H1).

Abstract: An object is to provide a medical liquid infusion apparatus suitable for a portable use and capable of suppressing an abrupt change in flow rate even when the environmental temperature rises. A medical liquid infusion apparatus 1 is provided with a driving portion 2 and configured to infuse a medical liquid inside a medical liquid container 3 to a patient by applying a pressure to the medical liquid container 3 using a driving force of the driving portion. The driving portion 2 includes a compressed gas cylinder 4 filled with a compressed gas, and it is configured in such a manner that the driving force is generated by the pressure inside the compressed gas cylinder 4.

Abstract: Disclosed is a receptacle for use with a medical suction device which is equipped with a cover body and an external case for detachably holding and air-tightly surrounding the receptacle and a patient-side tube for introducing waste liquid into the receptacle, and designed to create a negative pressure in both an interior space of the cover body and the external case and an interior space of the receptacle so as to allow waste liquid to be sucked into the receptacle through the patient-side tube. The receptacle has an air-pervious/liquid-impervious element having air perviousness and liquid imperviousness. The air-pervious/liquid-impervious element at least partly constitutes a portion of the receptacle to be surrounded by the cover body and the external case.

Abstract: Disclosed is a medical liquid meter (10) for use with a medical liquid feeding device (30) including an expandable container (31), an inlet port (32) for supplying a medical liquid into the expandable container (31) therethrough, and a feed duct (33) for feeding to a patient the medical liquid discharged from one end of the expandable container (31). The medical liquid meter (10) comprises a weight-measuring mechanism (1). The weight of the medical liquid feeding device (30) is measured using the weight-measuring mechanism (1) so as to quantify a remaining amount of the medical liquid stored in the expandable container (31).

Abstract: A compact liquid discharge regulator is provided at low cost by arranging a channel spirally formed in the surf ace of a passage forming member. The surface of the passage forming member is brought into close contact with the inner surface of a housing part, and the channel functions as a liquid passage. In this construction, the sectional form and length of the channel can be formed at high precision in accordance with the design. Therefore, a desired pipe loss is obtainable only by designing in advance the sectional form and length of the channel so as to correspond to the pipe loss. Particularly, with injection molding, mass production of a passage forming member of identical pipe loss can be effected merely by preparing a mold corresponding to the pipe loss, thus leading to a considerable reduction in the manufacturing cost of the discharge regulator.

Abstract: A backflow prevention structure, which is to be connected to a liquid medicine inlet of a liquid medicine injection device for injecting a liquid medicine in a liquid medicine retaining vessel of the liquid medicine injection device into a body part, includes a backflow prevention valve element provided at the liquid medicine inlet for preventing backflow of the liquid medicine from the liquid medicine retaining vessel. The backflow prevention valve element has a beaklike nonreturn valve and an annular valve and the liquid medicine is introduced into the liquid medicine retaining vessel through the beaklike nonreturn valve, and the liquid medicine in the liquid medicine retaining vessel is allowed to flow in a reverse direction via the annular valve when a negative pressure is produced on one side of the backflow prevention valve element opposite to the liquid medicine retaining vessel.