Abstract: Infusion pumps including a plurality of reservoirs arranged either serially and/or in parallel with one another are described. In some embodiments, flow channels with a desired arrangement of flow resistances, bypass flow paths, pressure sensors, and/or meniscus control structures may be included in the infusion pump to provide a desired flow of one or more therapeutic compounds into and/or out from an infusion pump.

Abstract: The present disclosure provides a new and innovative method and system for flow rate compensation in devices, such as medical devices and other electronic devices. In various embodiments, a computer-implemented method includes dispensing, by a pump controlled by a controller, a fluid from a fluid supply in a pulse mode over a period by determining a pulse volume for a pulse, determining a pulse cycle time, and for the period: controlling the position of the pump to perform a delay and perform a pulse to dispense an amount of the fluid, the pulse performed for the pulse cycle time, calculating an overshoot or undershoot of the amount of the fluid dispensed relative to the pulse volume, adjusting the pulse cycle time based on the calculated overshoot or undershoot, and repeating the dispensing until the period has elapsed.

Abstract: A douche apparatus adaptable to a bottle and configurable for storage and portability may comprise a nozzle and an adapter assembly having one or more bottle adapters, a nozzle attachment end, a bottle attachment end and an adapter assembly central portion. The douche apparatus is adaptable to a bottle having bottle threads mateable to the bottle attachment end, and is configurable for storage and portability, wherein the nozzle may be detached from the adapter assembly and be situated within the adapter assembly central portion. The douche apparatus may further comprise a case having a case housing and a case cap having an interior side comprising threads mateable to the bottle attachment end, wherein the adapter assembly may be attached to the interior side of the case cap prior to an attachment of the case cap to the case housing.

Abstract: A miniaturized medical device comprises an electronic functional device for performing a function of said miniaturized medical device. The miniaturized medical device further comprises a wake-up device for transferring said functional device from a switched-off state to an operational state. Herein, the wake-up device comprises an electrical detection circuit configured to generate a wake-up signal and a switch device. The switch device comprises a switch member, a magnet device attached to the switch member and at least one switch contact. The switch member is excitable by a time-varying magnetic field to perform an oscillating movement for acting onto said at least one switch contact to perform a switching action of the switching device in the electrical detection circuit and to in this way generate the wake-up signal.

Abstract: A peristaltic pump is provided for conveying a fluid pumping medium through a compressible hose. The pump is designed particularly for use in an aquarium, terrarium, or vivarium for metering fluids accurately and reliably by eliminating permanent tubing deformation and random stopping positions of rollers.

Abstract: A flow regulation clamp assembly for adjusting the fluid flow rate in a connector tube of an infusion set is provided. The flow regulation clamp assembly includes a housing to receive the connector tube, a slider slideably engaged within the housing and configured to compress the connector tube to provide a fluid flow adjustment, and a rotator knob moveable engaged with the housing and configured to move the slider. Infusion sets and methods of adjusting fluid flow rates are also provided.

Abstract: The present invention discloses a positive-pressure double-nozzle nasal cavity cleaner featuring double pressure protection, and relates to the technical field of health care. The nasal cavity cleaner consists of a nose washing end, an upper shell, a core module, a control module, a lower shell, a liquid reservoir and a waste reservoir, wherein the nose washing end is rotatably connected to a top portion of the upper shell, and the nose washing end consists of a silicone washing nozzle, a silicone backflow nozzle and a rotary connecting base. The nasal cavity cleaner uses positive pressure and automatic pressure relief structures to obtain safe and constant air pressure, and then presses normal saline into the nasal cavity to clean the nasal cavity, so that pressure in the nasal cavity is small and stable during cleaning, which prevents damage to the nasal cavity and ear canal, thus being safer to use.

Abstract: An electric air compressor system includes an air compressor and an electric motor configured for driving the air compressor. An electric power storage device provides electric power to the electric motor. An electric generator provides electric power to the electric power storage device and/or to the electric motor. A power regulator including a processor controls operation of the electric generator. The power regulator controls operation of the electric generator based on at least one of an on/off operational state of the electric generator, the temperature of the electric generator, the temperature of the electric power storage device, the electrical current output of the electric generator, and the speed of the electric generator.

Abstract: Heat transfer devices are based on using one or more ionic pumps to circulate a dielectric working fluid around a closed circulation path, which may be contained in a conduit. The working fluid may be a liquid or a gas. The ionic pumps are disposed along the closed circulation path. The pumps include an emitter and collector. When a voltage is applied to the emitter, the working fluid is ionized at the emitter. The ionized fluid is drawn electrostatically to the lower-voltage collector, which, through collision with molecules that in turn impart their momentum, creates a flow of the working fluid. This approach may be used with either positive or negative corona devices.

Abstract: Disclosed are a scroll compression mechanism and a scroll compressor. The scroll compression mechanism comprises a non-orbiting scroll member, an orbiting scroll member, an oil supply passage, an adjusting valve and a fluid pressure passage comprising a first end and a second end. The first end is in fluid communication with a first pressure source to apply a first pressure to the movable valve body, the second end is in fluid communication with a second pressure source to apply a second pressure to the movable valve body, so that based on a pressure difference between the first and second pressures the movable valve body can selectively move toward a first direction of reducing a flow cross-sectional area of the oil supply passage and toward a second direction of increasing the flow cross-sectional area of the oil supply passage, thereby adjusting an oil supply amount to the scroll compression mechanism.

Abstract: A precise dose syringe for medical botulinum toxin is provided, which includes a syringe and a plunger handle. Multiple arc-shaped grooves are respectively provided on both sides of the plunger handle, and a scale line is processed on the front side of the plunger handle. A reminder mechanism and a quantitative mechanism are sleeved on the outer side of the plunger handle. The indicator arrow is located in front of the plunger handle, and the I-shaped block is connected to a thumb screw. The front side of the thumb screw is fixedly connected to a contact block, and the front side of the contact block is in contact with a back side of the plunger handle. The quantitative mechanism can make the injection dose of the syringe precise and controllable, while the reminder mechanism can remind doctors of the real-time injection amount during botulinum toxin injection.

Abstract: The system includes a pump assembly comprising a pump mechanism having an inlet side that fluidly couples to a fluid supply, and an outlet side. A pressure sensor is coupled to the outlet side and configured to measure fluid pressure. An actuator is coupled to the pump mechanism. A controller is coupled to the pressure sensor and is configured with a preselected set of fluid pressure set points and one or more preselected sets of fluid flow rates and to control the actuator to increase a fluid flow rate to a first flow rate when the fluid pressure at the outlet side falls to a lower one of corresponding fluid pressure set point. The controller controls the actuator to reduce the fluid flow rate to a second fluid flow rate, when the fluid pressure at the outlet side rises to an upper one of a corresponding fluid pressure set point.

Abstract: The present invention relates to a linear motor and a linear compressor. A linear motor according to an idea of the present invention comprises: a first stator; a second stator disposed inside the first stator so as to be movable in an axial direction. The mover includes: a plurality of permanent magnets; a front sub core disposed at the front of the plurality of permanent magnets in the axial direction; and a rear sub core spaced from the front sub core in the axial direction so as to be disposed at the rear of the plurality of permanent magnets in the axial direction, wherein the front sub core and the rear sub core are formed to have the same shape.

Abstract: Discharge port (26) as arc-recessed discharge portion is formed by cutting on bottom surface (13a) of pump accommodating portion (13) of variable displacement pump. On mounting surface (1b) of housing body (1), first low pressure chamber (281) is formed at position overlapping with discharge port (26) in radial direction of pump structure (14) formed by driving shaft (3), rotor (4) and vanes (5) Drain hole (28b) communicating with low pressure portion located outside housing body (1) is formed on bottom surface (28a) of first low pressure chamber (281) along direction of rotation axis (O1) of pump structure (14). Low pressure portion has pressure that is hydraulic pressure of oil discharged from discharge port (26) or less. Oil from discharge port (26), having higher pressure than first low pressure chamber (281), flows into first low pressure chamber (281) by pressure difference between discharge port (26) and first low pressure chamber (281).

Abstract: A motor includes: a first portion that includes a plurality of permanent magnets; and a second portion that includes a plurality of coils, wherein the first portion or the second portion is configured to be rotatable around a rotation axis, wherein the plurality of permanent magnets are circumferentially arranged about the rotation axis, and wherein the plurality of coils are arranged so as to face the plurality of permanent magnets in a direction along the rotation axis, and the motor further includes: a control unit that controls a rotational speed and an attitude of the rotating first portion or the rotating second portion by controlling currents that are applied to the plurality of coils.

Abstract: A hydraulically driven membrane pump for conveying a fluid, including a pumping chamber, a working chamber and a membrane which separates the pumping chamber and the working chamber in a fluid-tight manner, and means for reciprocating the membrane between a suction stroke position and a pressure stroke position, wherein the pumping chamber comprises at least one suction port through which the fluid to be conveyed is sucked into the pumping chamber in the suction stroke, and at least one discharge port through which the fluid to be conveyed is discharged from the pumping chamber in the pressure stroke, the membrane being connected on the working chamber side to a pull rod which is resiliently biased in the direction of the movement of the suction stroke.

Abstract: A metering diaphragm pump includes a metering chamber, a working chamber and a metering membrane. The metering chamber and the working chamber are separated from one another by the metering membrane. A device for moving the metering membrane back and forth between a first and a second position is provided. The volume of the metering chamber is smaller in a first position than in the second position, and a protective membrane is disposed next to the metering membrane on the working chamber side.

Abstract: A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.

Abstract: A catheter positioning system has an inner needle assembly, an outer needle assembly and a catheter assembly. The inner needle assembly has an inner needle, a stopper connected the inner needle, and a tube connected to the stopper. The outer needle assembly has an outer needle connected to a chamber. The outer needle is arranged concentrically with the inner needle so as to surround the inner needle. The catheter assembly has an internal catheter and an access hub. The catheter is arranged concentrically over the outer needle. The catheter is placed in a vein by piercing the vein with the inner needle, infusing liquid through the tube and inner needle to inflate the vein, sliding the outer needle into the vein over the inner needle, sliding the catheter into the vein over the outer needle, and then removing the first and second needles together, leaving the catheter in the vein.

Abstract: A breast pump includes a milk bottle, a silica gel bowl, a silica gel flange and a main machine; the silica gel bowl is mounted inside the milk bottle, the side wall of the silica gel bowl is provided with an one-way valve, the silica gel bowl is provided with a milk collecting cavity and a negative pressure cavity, separated by a deformed wall of the silica gel bowl; the peripheral portion of the silica gel flange is tightly connected with the milk bottle, the central portion of the silica gel flange is tightly connected with the silica gel bowl and provided with a through hole communicated with the milk collecting cavity, and the inner wall of the milk bottle and the inner wall of the silica gel flange enclose to form the milk storage cavity; the main machine is arranged on the outside of the milk bottle.