Abstract: A cuff for a blood pressure monitor includes a cuff main unit wound around a measurement site of a living body, and a handle provided on the outer peripheral surface of the cuff main unit and gripped with a hand for fitting the cuff. The cuff main unit includes a cover member in which an air bag for pressing the living body and a curled elastic member wound annularly on the outside of the air bag and radially changeable in size are contained, and a diameter increasing/decreasing mechanism for increasing/decreasing a diameter of the curled elastic member. The handle has a push-button for increasing/decreasing the diameter of the curled elastic member by switching an operation of the diameter increasing/decreasing mechanism. This can provide a cuff for a blood pressure monitor permitting easy mounting/dismounting with respect to the measurement site of the living body.

Abstract: A curled elastic member has a flexion portion allowing for local flexion. The curled elastic member is provided with an abutment piece positioned on the outer side of the flexion portion and brought into abutment with the outer surface in proximity to the flexion portion when the curled elastic member is in the shape suitable for blood pressure measurement. The flexion portion is provided with a groove on the inner circumferential side thereof with a groove bottom having the shape of an arc in cross section. A blood pressure monitor cuff and a blood pressure monitor are provided with the curled elastic member formed to be foldable without losing the essentially required characteristics.

Abstract: According to a solenoid air valve, a flange portion of a moving core and a flange portion area of a bobbin implement a stop area defining a distance of travel of the moving core in a direction away from a fixed core. An end portion of a shaft portion of the moving core can project outward through an opening of a frame cover, so that a gap between a surface of the frame cover facing the shaft portion and a side surface of the shaft portion (distance: L2) can be minimized. Consequently, a solenoid air valve having a structure allowing improvement in magnetic efficiency by making smaller the gap between the frame and the moving core is provided.

Abstract: An air bag being inflated and deflated as air comes in and out is included. The air bag is formed of a flexible sheet material. The air bag has at least an inner circumferential sheet positioned inside when a blood pressure monitor cuff is wrapped around a living body, and an outer circumferential sheet positioned on the outer circumferential side of the inner circumferential sheet. The sheet material forming the air bag has a thickness of 0.15 mm or less. Therefore, big deep wrinkles appearing on the inner surface of the fluid bag fitted on a living body can be reduced, which may otherwise give an adverse effect on blood pressure measurement.

Abstract: A cuff for a blood pressure monitor includes an air bag, a curled elastic member wound annularly and changeable in size in a radial direction, and a bag-shaped cover member containing the air bag and the curled elastic member. The bag-shaped cover member is formed by stacking an outer cover and an inner cover and connecting their rims together. The inner cover has a folded portion formed by folding back its end portion in the width direction. The folded portion is located between the end portion in the width direction of the outer cover and the end portion in the width direction of the curled elastic member. Thus, a cuff for a blood pressure monitor easy to manufacture, suitable for reduction of cuff width, excellent in handling property when fitting, and suppressing curling and fraying of the bag-shaped cover member can be obtained.

Abstract: An air valve comprising: an inflow opening through which air flows in; an outflow opening through which the entered air flows out; and an actuator having an elastomer or polymer that can expand and contract when supplied with a voltage and an electrode for applying a voltage on the elastomer or polymer, wherein an outflow route from the inflow opening to the outflow opening is opened and closed by driving the actuator.

Abstract: A cuff as a living body pressing apparatus provided for a blood pressure monitor as a living body information measuring apparatus includes an air bag and a curled elastic member wound annularly around an outer side of the air bag. The air bag has an engagement portion at each side end portion in the width direction. The engagement portion is folded along the end face of the curled elastic member toward the curled elastic member, and secured to the outer peripheral surface of the curled elastic member. With this configuration, it is possible to provide a living body pressing apparatus capable of preventing occurrence of lateral displacement, and a living body information measuring apparatus provided with the living body pressing apparatus.

Abstract: A cuff for a blood pressure monitor has an air bag inflated/deflated as the air comes in/out. The air bag has an inner wall portion located on the inner side in the fitted state of the cuff and an outer wall portion located outer than the inner wall portion, and a side wall portion connecting side end portions of the inner and outer wall portions and folded inwards in the deflated state of the air bag to form a gusset at each side end portion of the air bag. A bonded portion is provided at a region of the air bag in its winding direction around the living body, for reducing expansion of the gusset formed by the side wall portion. Thus, occurrence of lateral displacement of the cuff is prevented, and a highly reliable blood pressure monitor of high performance can be obtained.

Abstract: A cuff for a blood pressure monitor is provided with an air bag including a first bag member located outside and a second bag member located inside in the thickness direction when fitted on a living body. The first and second bag members have first and second inflated/deflated spaces, respectively. The second bag member is formed by laying a single-layer resin sheet on the surface on the living body side of the first bag member and by melting and bonding its rim to the surface. A bonded portion of the first bag member with the resin sheet is positioned inner than each end in the width direction of the first inflated/deflated space. Thus, a cuff for a blood pressure monitor fabricated with ease and at low cost, exhibiting high pressing performance and high avascularization performance, and suitable for reduction of cuff width can be provided.

Abstract: A moving core of a solenoid air valve has a flange portion arranged on a side of a fixed core, provided in a radially projecting manner and having a first diameter, and a shaft portion having a second diameter smaller than the first diameter. Therefore, a sufficient area of magnetic pole is ensured around a rubber packing in the flange portion of the moving core. Consequently, the solenoid air valve structured such that an area of magnetic pole is sufficiently ensured even if the moving core is made thinner in order to ensure a volume of a coil body in reducing the solenoid air valve in size can be provided.

Abstract: An air pump includes: a hollow actuator that has elastomer or polymer members that can expand and contract in response to voltage application, and electrodes for applying voltage to the elastomer or polymer members; a suction unit that sucks fluid into the hollow actuator; and a discharge unit that discharges fluid to the outside of the hollow actuator.

Abstract: The housing employed in a sphygmomanometer includes a first housing and a second housing. A cuff band has a bending portion that is bent inwardly. The bending portion marks the division between the first housing provided at one end and the second housing provided at the other end on the outer circumferential surface of the cuff band. Accordingly, the entire volume can be changed significantly between a state of measurement and a state of storage. A sphygmomanometer having a structure that allows the storage capability and portability to be improved can be provided.

Abstract: A cuff for a blood pressure monitor includes an air bag having an inflated/deflated space permitting a fluid to come in and out, and a sponge that is arranged inside the inflated/deflated space to extend substantially continuously from one end to the other end of the air bag in its winding direction. With this configuration, a cuff for a blood pressure monitor permitting the air bag to be inflated uniformly over the entire region when the air is introduced therein is achieved.

Abstract: A cuff for a blood pressure monitor is wound around a measurement site of the living body, and includes an air bag having an inflated/deflated space formed therein by melting and bonding rims of an outer wall portion and an inner wall portion together. The air bag contains a band-shaped connecting portion, which has ends respectively attached to one end and the other end of the air bag in its winding direction around the living body, so as to extend substantially continuously from the one end to the other end of the air bag. The band-shaped connecting portion is arranged inside the inflated/deflated space of the air bag. With this configuration, a cuff for a blood pressure monitor permitting uniform inflation of the air bag over the entire region when the pressurized air is introduced therein is obtained.

Abstract: A cuff for a blood pressure monitor includes a cuff main unit wound around a measurement site of a living body, and a handle provided on the outer peripheral surface of the cuff main unit and gripped with a hand for fitting the cuff. The cuff main unit includes a cover member in which an air bag for pressing the living body and a curled elastic member wound annularly on the outside of the air bag and radially changeable in size are contained, and a diameter increasing/decreasing mechanism for increasing/decreasing a diameter of the curled elastic member. The handle has a push-button for increasing/decreasing the diameter of the curled elastic member by switching an operation of the diameter increasing/decreasing mechanism. This can provide a cuff for a blood pressure monitor permitting easy mounting/dismounting with respect to the measurement site of the living body.

Abstract: An air pump includes an actuator that includes an elastomer or a polymer expandable or contractible when a voltage is applied to the elastomer or polymer, and electrodes provided to apply the voltage to the elastomer or polymer, and a diaphragm deformed by a reciprocating motion of the actuator, whereby the air pump dispensing with a component such as a motor or a clutch for deforming the diaphragm and having a simple configuration can be realized.

Abstract: A moving core of a solenoid air valve has a flange portion arranged on a side of a fixed core, provided in a radially projecting manner and having a first diameter, and a shaft portion having a second diameter smaller than the first diameter. Therefore, a sufficient area of magnetic pole is ensured around a rubber packing in the flange portion of the moving core. Consequently, the solenoid air valve structured such that an area of magnetic pole is sufficiently ensured even if the moving core is made thinner in order to ensure a volume of a coil body in reducing the solenoid air valve in size can be provided.

Abstract: According to a solenoid air valve, a flange portion of a moving core and a flange portion area of a bobbin implement a stop area defining a distance of travel of the moving core in a direction away from a fixed core. An end portion of a shaft portion of the moving core can project outward through an opening of a frame cover, so that a gap between a surface of the frame cover facing the shaft portion and a side surface of the shaft portion (distance: L2) can be minimized. Consequently, a solenoid air valve having a structure allowing improvement in magnetic efficiency by making smaller the gap between the frame and the moving core is provided.

Abstract: A sphygmomanometer clamping device includes an actuator that includes an EPAM expandable and contractible when a voltage is applied to the EPAM and electrodes provided to apply the voltage to a elastomer or a polymer, and a curler deformed to clamp a part of a living body according to an expansion or a contraction of the EPAM.

Abstract: A cuff for blood pressure monitor includes an air bag for pressing an upper arm, a curled elastic member wound annularly on the outside of the air bag and changeable in size in a radial direction, and a cover having a bag shape for including the air bag and the curled elastic member. The curled elastic member has an overlapping region in which one end and the other end thereof in a circumferential direction are overlapped with each other. The cuff has a sticker serving as an indicator for showing a spot to be held by hand in the fitting operation on a surface thereof at a position corresponding to a region opposing to the overlapping region of the curled elastic member or a region closer to the one end of the curled elastic member than the opposing region in the non-fitting state.