Abstract: An electric motor-driven tool is configured to make a notification to a worker about a set value of tightening torque as necessary before starting tightening work. An electric motor-driven screwdriver includes an electric motor-driven screwdriver body capable of changing a setting of the magnitude of tightening torque to be applied when tightening a screw, and a notification device for making a notification to a worker about a set value of tightening torque. If the set value of tightening torque has been set to a value greater than a threshold value (reference value), a control circuit of the electric motor-driven screwdriver sends a notification execution signal to the notification device before the electric motor-driven screwdriver body is started to be driven, thereby enabling a notification to the worker to be made by the notification device.

Abstract: Provided is a liquid pump configured to suppress discharge of air from an air pool formed in a discharge-side tank. A discharge-side tank part formed in a housing has a first inner wall surface and a second inner wall surface facing each other in a horizontal direction in an installed position of the liquid pump. The first inner wall surface is formed with a discharge port, and the second inner wall surface is formed with an opening of a discharge-side communicating passage. An air pool is formed in a space in the discharge-side tank part above the opening of the discharge-side communicating passage and the discharge port. A circular cylindrical partition is provided in the discharge-side tank part. The circular cylindrical partition projects from the second inner wall surface toward the first inner wall surface with at least a portion of the cylindrical partition positioned above the opening of the discharge-side communicating passage so as to cover the opening as seen from the air pool side.

Abstract: An air-source heat pump air conditioner includes a first heat pump including a first refrigeration cycle that is formed by a first air-conditioning heat exchanger, a first heat-source heat exchanger, a first compressor, and first refrigerant flowing therethrough; a second heat pump including a second refrigeration cycle that is formed by a second air-conditioning heat exchanger, a second heat-source heat exchanger, a second compressor, and second refrigerant flowing therethrough; and an air conditioner control device configured to control the first heat pump and the second heat pump to operate at least one of the first refrigeration cycle and the second refrigeration cycle for a space to be air conditioned, the air-conditioning air containing outside air, return air, and other air that exchange heat with the first circulating refrigerant and the second circulating refrigerant in the first air-conditioning heat exchanger and the second air-conditioning heat exchanger.

Abstract: A surgical microscope employs a pentaprism beam splitter as a branching unit to branch each beam passed through variable power optical systems into a first beam and a second beam, the first beam being horizontally reflected for an eyepiece unit, the second beam being vertically transmitted for an imaging device. The pentaprism alone is capable of simultaneously conducting reflection to provide an erect image and transmission to provide a photographing image, thereby reducing the number of optical parts in a microscope body of the surgical microscope.

Abstract: A surgical microscope has an upper face provided with a light beam outlet. An assistant scope is mounted on the light beam outlet, and is rotatable in a horizontal plane so as to direct in any direction in the plane.

Abstract: A surgical microscope system includes a surgical microscope. When an additional unit is added to the microscope, the center of gravity of the microscope upwardly changes. In this case, an extension of a vertical-slider plate is joined with an upper joint location of a horizontal-slider plate, to raise a vertical slider together with a rotary shaft relative to the microscope, so that a weight balance of the microscope can be established only by sliding the vertical slider within its slidable range.

Abstract: A pipe coupling includes a male coupling member detachably connected to a female coupling member by a chuck member of the female coupling member. The chuck member is disposed radially outside of a female coupling body to extend forward beyond a front end opening. The chuck member is displaceable in a longitudinal direction and also radially displaceable between a locking position where a locking groove locks a locking projection and an unlocking position where the locking groove is displaced radially outward from the locking position to unlock the locking projection. When the chuck member is displaced rearward from a temporarily connecting position to a connecting position in a state where the locking groove has locked the locking projection in the temporarily connecting position, the chuck member draws the male coupling member into a female-side passage to connect the male coupling member to the female coupling member.

Abstract: A coupling member inhibits accidental pivoting of a lever for operating a movable member such as a chuck member or a valve. The coupling member has a chuck member mounted displaceably relative to a female coupling body between a temporarily connecting position (first position) and a connecting position (second position). The chuck member is operated by a lever that is pivotable relative to the female coupling body. When the lever is pivoted from a first pivoting position to a second pivoting position, the chuck member is displaced from the temporarily connecting position to the connecting position to connect an associated male coupling member. When the lever is in the second pivoting position, a lock member of the lever engages a lever holding member to inhibit the lever from pivoting toward the first pivoting position.

Abstract: An induced air discharging unit includes: a jet flow generator configured to discharge supply air fed from outside, the jet flow generator discharging the supply air as a jet flow of air; an air inducer configured to allow air of an air-conditioning target space to be induced by an inducing effect of the jet flow of air discharged from the jet flow generator; an air mixer configured to discharge mixed air of the jet flow of air from the jet flow generator and the air induced by the air inducer to the air-conditioning target space, and radiate heat of the mixed air to the air-conditioning target space; and an air purifier configured to produce a purifying substance that purifies a purification target substance by chemical reaction, and blow out the purifying substance to the air-conditioning target space.

Abstract: A check valve is provided which comprises a casing having a fluid passage, a valve seat member disposed in the fluid passage, and a valve element housing with a valve element disposed therein. The valve seat member has a valve seat surface on an end surface facing downstream. The valve element housing is a discrete member separate from the valve seat member and detachably secured to a downstream end portion of the same. The valve element is displaceable between a closed position and an open position.

Abstract: A stand apparatus for a surgical microscope includes a stand body and a parallel linkage. The parallel linkage is rotatably attached to the stand body by attaching a lower-end joint thereof instead of a vertical intermediate part thereof to the stand body. When the parallel linkage is tilted frontward, no part of the parallel linkage protrudes rearward. Weight balance of the frontward tilted parallel linkage is maintained by, instead of a counterweight, a compression spring arranged along a rear sub-arm.

Abstract: A pneumatic massage apparatus making it possible to perform even more efficient drainage is provided. A pneumatic massage apparatus includes a massage device to be fitted to wrap around at least one of an arm or leg of a patient and having a plurality of air chambers disposed in series in a proximal direction from a distal position of the at least one of an arm and a leg toward the center of the patient's body, and a compressed air control unit configured to supply compressed air into the plurality of air chambers to pressurize them, and discharge compressed air from the plurality air chambers to depressurize them. The compressed air control unit is configured to depressurize the pressurized air chambers in such a manner that, of any pair of mutually adjacent air chambers, a proximal air chamber of the pair first starts to be depressurized, and then a distal air chamber of the pair starts to be depressurized.

Abstract: A surgical stereoscopic observation apparatus has a pair of main optical paths A and a pair of secondary optical paths B, an aligning direction of the paths B differing by 90 degrees from that of the paths A. The main and secondary optical paths involve imaging elements D1 and D2, respectively. This apparatus is able to provide not only electronic images oriented for a main operator and an assistant positioned opposite to the main operator but also electronic images orientated for an assistant positioned on the left or right side of the main operator, thereby allowing the main operator and assistants to cooperatively conduct an operation.

Abstract: The present disclosure provides a male coupling member detachably couplable to a female coupling member that includes an outer coupling body having a first end inserted and fitted into the female coupling member, a second end opposite to the first end, and a passage extending from the first end to the second end. The male coupling member further includes an inner coupling body disposed coaxially with the outer coupling body at a position closer to the first end, and a filtration member detachably attached to the inner coupling body. The inner coupling body is attachable to and detachable from the outer coupling body from the first end. The filtration member is held in the passage when the inner coupling body is attached to the outer coupling body. The filtration member is detachable when the inner coupling body is detached from the outer coupling body.

Abstract: A coupling member is provided that includes a filtration member provided in a fluid passage in a coupling body to divide the fluid passage into an upstream pre-filtration passage section and a downstream post-filtration passage section. The filtration member includes a cylindrical part extending in the direction of a longitudinal axis and having a filtration portion. The cylindrical part divides a downstream portion of the pre-filtration passage section and an upstream portion of the post-filtration passage section from each other in the radial direction of the cylindrical part. Further, the fluid passage has a dust collecting part extending in the direction of the longitudinal axis from the downstream portion to a position closer to a downstream opening than the filtration portion of the filtration member. The dust collecting part is closed at a downstream end thereof.

Abstract: A surgical stereoscopic observation apparatus defines main optical paths and secondary optical paths that are branched from the main optical paths A and run to a pair of fluorescence imaging elements. The apparatus picks up both visible-light images and fluorescence images, displays the images on an electronic image display unit, and allows an observer to stereoscopically observe the displayed images.

Abstract: The present disclosure is directed toward a suction nozzle operable to remove solid contaminants from a fluid without causing a substantial increase in fluid resistance. The suction nozzle has a vertical flow path, a contaminant precipitation recess opened upward under the vertical flow path, and a lateral flow path extending laterally from the vertical flow path at a position above the contaminant precipitation recess. The fluid sucked from a suction opening in the lower surface is led to the vertical flow path through the lateral flow path and flows upward through the vertical flow path to reach a connection port. With fluid flowing through the vertical flow path, solid contaminants contained in the fluid settle down by gravity and precipitate in the contaminant precipitation recess and are separated and removed from the fluid.

Abstract: A surgical microscope system includes an infrared thermocamera that directly obtains temperature data on an illuminating spot. If the obtained temperature data indicates a higher temperature than a temperature represented by reference temperature data, an alarm unit generates an alarming sound to notify in advance a risk of overheating so that a counteraction such as stopping an illuminating beam can be taken to surely prevent the overheating of the illuminating spot.

Abstract: In order to reduce a pressure loss in a check valve and simplify a manufacturing process, a check valve (10) configured to be disposed in piping of fluid is provided, which includes a valve housing (31) including a valve element (52) and a valve seat (54) therein, a casing (20) that is configured to place the valve housing therein, in which a casing flow path (60) is provided between the casing and the valve housing to make a flow of the fluid in an axial direction of the valve housing. In the valve housing, a communicating hole (38) and sealing portion (34) are formed. The communicating hole that is formed through the valve housing in a thickness direction thereof introduces the fluid, which flows through between the valve element and the valve seat at the open position of the check valve, into the casing flow path.