Pump for oil industry has chamber with flexible bags - and can pump mixt. contg. gases, liq. hydrocarbon(s) and solid particles without problems affecting rotary pumps

This pump, for fluids such as a pumpable mixture from an oil borehole or elsewhere in the oil industry has: a housing with, at least, one inlet and one outlet, one or more chambers that can be decreased or increased in volume and are connected to the inlet(s) and outlet(s), elastic means of displacement for contracting and expanding the chamber(s) to allow, at least partly, the emptying and filling of the chamber(s) with the fluid, and valve devices for intercepting the flow of fluid into the chamber(s).

Pump for small quantities of liquid - has tubular piezoelectric transducer excited to break seal with cylindrical core

The pump has a piezoelectric transducer (3) with three separately-excited contact regions (4-6) on its outer surface. The transducer is tubular and encircles a cylindrical core (2). The transducer connects the pump's inlet (7) to its outlet (8). With the transducer unexcited, the core fits tightly inside it and acts as a seal preventing the liquid from passing from inlet to outlet. When the transducer is excited, it expands and produces a gap between it and the core so that liquid can pass through. The advantage lies in avoiding the need for inlet and outlet valves. The pump-effect is achieved when the transducer is deexcited -- liquid between transducer and core is forced towards the outlet.

Punktionsabsaugeinrichtung

Punktionsabsaugeinrichtung (1) zum Abpunktieren von Punktat mit einer Schlauchleitung (8), die mit einer Punktionsnadel (9) verbindbar ist, und einer Peristaltikpumpe zum Absaugen des Punktats durch die Schlauchleitung (8), dadurch gekennzeichnet, dass die Peristaltikpumpe (5) in ein Handgehäuse (3) eingebaut ist, wobei der Rollenkopf stirnseitig am Handgehäuse (3) angeordnet ist und wobei das Handgehäuse (3) so ausgebildet ist, dass ein Nutzer die Punktionsabsaugeinrichtung (1) mit einer Hand an dem Handgehäuse (3) halten und positionieren kann.

Flexible tube pump

VENTILLOSE PUMPE

IMPLANTIERBARE INFUSION PUMP

OUTPUT DEVICE FOR A MACHINE TO THE EXPENDITURE OF LIQUID AS WELL AS MACHINE, WHICH CONTAIN SUCH AN OUTPUT DEVICE

Droplet generator and method for generation of fluid droplets

ELECTROACTIVE POLYMER DEVICES FOR MOVING FLUID

FLUID PUMP

PUMP AND ACTUATOR MECHANISM

METHOD AND APPARATUS FOR A MOLDED TUBE AND PERISTALTIC PUMP

A peristaltic pump (10) and tube (18) system are provided. The peristaltic pump (10) operates to squeeze the tube (18) and push liquid in the tube (18) in the desired direction. The tube (18) is molded, and thus allows for predictable and consistent flow rates.

LINEAR DRIVE, DUAL BELLOWS POSITIVE DISPLACEMENT PUMP

DRIVING ARRANGEMENT FOR A PUMP OR COMPRESSOR

Driving arrangement (11) for a pump, compressor or similar, adapted to provide alternating pressure in at least two chambers (27a, 27b, 27', 27"), such as chambers of a pump or compressor, as result of a reciprocating movement of a bar element (23). The bar element is connected to two movable pressure chamber faces being pistons (21a, 21 b) or plungers having fluid connection to said chambers, which bar element (23) is reciprocally supported in a housing (19). The driving arrangement further comprises an electric motor (31) which is adapted to provide the reciprocating movement of the bar element (23).The bar element extends through the rotor (31b) of the electric motor (31). The electric motor is an electric rotary motor. The invention also relates to a pump assembly with a plurality of such driving arrangements.

REACTIVE POLYMER GEL ACTUATED PUMPING SYSTEM

A subsurface well system contains well bore fluid and a pumping system which is lowered into the well bore on a conduit. The pumping system is supplied with electrical power through a conductor. The pumping system has a chamber, a discharge valve, and an intake valve for admitting the well bore fluid into the chamber. The chamber contains a reservoir that is filled with a reactive polymer gel that undergoes a significant change in volume in response to environmental changes. The gel expands when it is electrically stimulated, thereby forcibly expelling the fluid within the chamber. The gel contracts when it is not stimulated, thereby drawing fluid into the chamber. When electrical current is oscillated through the gel, the expansions and contractions repeat so that a pumping action of well bore fluid is achieved. The gel may also be formulated to react to an electromagnetic field. The gel of this embodiment contains metallic particles which increase in temperature when exposed to the magnetic ...

Elektromagnetischer Pulsationsmotor zur Förderung von Flüssigkeiten oder Kompression von Gasen.

Torsionspumpe

Pompe chirurgicale.

Dosiereinrichtung

Infusion pump.

DRIVE DEVICE FOR ACTUATION OF THE PUMP OR COMPRESSOR

РАБОТАЮЩИЙ НА МАГНИТНОЙ ЖИДКОСТИ ЭЛЕКТРОМАГНИТНЫЙ ПРИВОД ДЛЯ НАСОСА КРОВИ, ПРИМЕНЯЕМЫЙ ДЛЯ ПОДДЕРЖКИ РАБОТЫ СЕРДЦА, ЛИБО ДЛЯ ЧАСТИЧНОЙ ИЛИ ПОЛНОЙ ЕГО ЗАМЕНЫ

Valveless piezoelectric pump with inner bucket flow pipe

The invention discloses a valveless piezoelectric pump with an inner bucket flow pipe, and belongs to the field of fluid machines. According to the valveless piezoelectric pump with the inner bucket flow pipe, faces with the same polarity of two round piezoelectric vibrators (2) are oppositely arranged on a pump body (3); a pump cavity (1) is formed between the two round piezoelectric vibrators (2); the pump body (3) is connected to the inner bucket flow pipe (5) through a through hole (4) in the side face; the inner bucket flow pipe (5) is composed of a round cross section pipe body (7) and a curved surface (8) in the round cross section pipe body (7); space defined by the curved surface (8) and the round cross section pipe body (7) forms a curved bucket (9); the curved surface (8) is in a gradually-opened curved shape; the two sides of an axis (13), arranged in the inner bucket flow pipe (5), of the curved bucket (9) are evenly staggered; and the inner bucket flow pipe (5) is provided ...

ROLLING BEARING APPARATUS AND FUEL SUPPLY UNIT

A rolling bearing apparatus comprises a fuel supply unit installed near a ring-shaped space formed between an inner wheel and an outer wheel; and includes a tank having a leakage unit leaking lubrication oil, and stores the lubrication oil to be supplied to the ring-shaped space. The tank comprises a pocket which has flexibility storing the lubrication oil therein, and enables the lubrication oil to be leaked from the leakage unit in accordance with a contraction in volume of the pocket while the lubrication oil is filled therein. COPYRIGHT KIPO 2016 ...

PUMP

A pump where a drive section for regulating suction and discharge of a fluid is at least constituted of a driving element of a laminated body having an electrode layer on a solid electrolyte, the solid electrolyte includes an ion exchange resin, and the electrode layer is a metallic electrode. The pump can be used as a pump such as a diaphragm pump, a plunger pump, or a bellows pump. Further, the pump can be used not only as an ordinary pump, but also can be preferably used as a pump including a pump for electronic equipment, where the pump is suitably used for a cooling module etc. that cool a heat producing element, such as a CPU, of electronic equipment, a pump for a reagent dispenser, or a pump for blood examining chip.

PERISTALTIC FLUID PUMP

Piezoelectric pumps

The present invention is directed to an electro-motional device, specifically piezoelectric pumps. More specifically, the present invention is directed to various piezoelectric pumps such as diaphragm pumps, double acting piston pumps, peristaltic pumps or centrifugal pumps.

RESIN MEMBER

A resin member capable of inhibiting generation of particles due to repeated bending thereof is provided. A rolling diaphragm composed of a resin member has one surface formed as a liquid contact surface , repeatedly bends when used, and has flexibility. A surface roughness of the liquid contact surface at a portion that bends is less than 0.40 μm as an arithmetic average roughness, and a total light reflectance of the liquid contact surface at the portion that bends is not less than 2.0%. 1. A resin member having one surface formed as a liquid contact surface , the resin member repeatedly bending when used , the resin member having flexibility , whereina surface roughness of the liquid contact surface at a portion that bends is less than 0.40 μm as an arithmetic average roughness, anda total light reflectance of the liquid contact surface at the portion that bends is not less than 2.0%.2. The resin member according to claim 1 , whereina cross-sectional shape of the liquid contact surface at the portion that bends is a shape in which recesses and projections are alternately continuous, andthe recesses are formed by concave curved surfaces.3. The resin member according to claim 1 , whereinthe cross-sectional shape of the liquid contact surface at the portion that bends is a shape in which recesses and projections are alternately continuous, andends of the projections are formed as sharp ends. The present invention relates to a resin member.For example, in a pump or a valve that is used when a chemical solution is applied or prepared in a production process for semiconductors, liquid crystal devices, organic EL devices, solar cells, etc., a diaphragm, a bellows, or the like that is composed of a flexible resin member is used as a component that repeatedly bends when the pump or the valve is driven (see, for example, PATENT LITERATURE 1 and FIG. 14 of PATENT LITERATURE 2).PATENT LITERATURE 1: Japanese Laid-Open Patent Publication No. S61-197779PATENT LITERATURE 2: ...

Pump head for a peristaltic pump

Pump heads for peristaltic pump assemblies are provided. For example, a pump head for a peristaltic pump comprises an occlusion bed, a rotor guide, a rotor assembly positioned between the occlusion bed and the rotor guide, and a pathway for tubing. The pathway comprises an inlet portion, an outlet portion, and a connecting portion that connects the inlet and outlet portions. The inlet portion is defined between the occlusion bed and the rotor guide, the outlet portion is defined between the occlusion bed and the rotor guide, and the connecting portion is defined between the occlusion bed and the rotor assembly. Further, the occlusion bed is movable with respect to the rotor guide and the rotor assembly. In exemplary embodiments, the pump head urges fluid flow through the tubing to supply a cooling fluid to a medical probe assembly for delivering energy to a patient's body.

MICROMECHANICAL DEVICES WITH MECHANICAL ACTUATORS

POSITIVE DISPLACEMENT PUMP SYSTEM AND METHODS FOR THE DISPENSING OF DROPLETS

TUBE PUMP

A TRANSPORTER

Волновой электронасос дл перекачки агрессивных жидкостей

... 1. Волновой электронасос для перекачки агрессивных жидкостей, содержащий напорную трубу и расположенный в ней электрический нагнетатель, подключенный к многофазной электрической сети, отличающийся тем, что нагнетатель выполнен в виде кольцевых возбудителей, сжимающихся под воздействием фазного напряжения сети, расположенных внутри напорной трубы последовательно и подключенных к фазам, следующим по времени последовательно, внутри этих возбудителей расположен трубчатый эластичный нагнетатель, покрывающий кольцевые возбудители, внутри которого в свою очередь расположен с зазором D, закрепленный неподвижно относительно напорной трубы герметизирующе-напорный шток. 2. Волновой электронасос для перекачки агрессивных жидкостей по п.1, отличающийся тем, что электрические волновые возбудители выполнены в виде электромагнитов, расположенных последовательно друг за другом с зазорами, между их разомкнутыми магнитопроводами заполненными несжимаемым нетвердеющим гелем. 3. Волновой электронасос для перекачки ...

DOSIERPUMPE FUER FLUESSIGKEITEN, INSBESONDERE FUER ANAEROBAUSHAERTENDE KUNSTSTOFFE

KURVENFÖRMIGE PERISTALTISCHE PUMPE

SCHLAUCHPUMPE.

An Improved Electromagnetically Operated Diaphragm Pump.

... 1,166,328. Reciprocating pumps. MARTIN - MOULET & CIE. May 24, 1967 [May 27, 1966], No. 24118/67. Heading F1A. [Also in Divisions H1 and H2 ] An electromagnetically operated diaphragm pump has a self-interrupting plunger type electromagnet comprising a winding 25 surrounding a core 26 which has a conical face 26a co-operating with a similarly shaped face 28a on armature 23. The armature, which carries pump diaphragm 20, is supported on a rod 22 which extends through core 26 and has mounted at its other end a block 29 carrying the fixed interrupter contact 35. Moving contact 30 is mounted on carrier 34 which is pivotally mounted on block 29 and is rotated to open and close the contents by spring 36 which reacts with the faces of cam 34a. Attached to casing 2 which surrounds the electromagnet is a valve and filter unit comprising a filter 37 and double valve assembly including a body 38a having a suction valve 39a and a body 38b having a delivery valve 39b.

Micro-fabricated electrokinetic pump

Micro-fabricated electrokinetic pump

An electrokinetic pump fabricated by using semiconductor processing and etching steps. The pump comprising a substrate 401 and a plurality of alignment marks 405 formed from a first material on a first surface of the substrate. A second material 409 applied to the first material has a plurality of capillaries formed therein and a support structure 406 is formed at each of the alignment marks wherein a second surface is formed between each support structure. A diffusion oxidizing agent is applied to the first and second surfaces and within the plurality of capillaries. A voltage differential applied between the first and second surface drives a liquid through the plurality of capillaries. An oxide layer 407 may be formed on the first surface before the second material is applied.

Hose pump

DEVICE FOR PRODUCTION SOUNDS WITH THE HELP OF A PRODUCED MEDIUM CURRENT

PUMP AND MECHANISM FOR OPERATION.

HOSE PUMP.

PIEZOELECTRIC LUBRICATION MECHANISM FOR A CAMP.

VALVE LOTS PUMP

Peristaltic pump

Magnetic pulse pump/compressor system

Magnetic pulse pump/compressor system

STANDING WAVE CAVITY PUMP

A pump includes an outer body; and a wall within said outer body. The outer body and the wall define a pumping cavity and an excitation cavity within the outer body. An excitable medium is contained within the excitation cavity. An excitation source is coupled to said excitable medium. This excitation source is operable to excite the excitable medium and create a standing wave therein. The standing wave acts through the wall to pump said fluid through said pumping cavity. Advantageously, the excitable medium is isolated from the pumped fluid by the wall.

DRIVING ARRANGEMENT FOR A PUMP OR COMPRESSOR

Driving arrangement (11) for a pump, compressor or similar, adapted to provide alternating pressure in at least two chambers (27a, 27b, 27', 27"), such as chambers of a pump or compressor, as result of a reciprocating movement of a bar element (23). The bar element is connected to two movable pressure chamber faces being pistons (21a, 21 b) or plungers having fluid connection to said chambers, which bar element (23) is reciprocally supported in a housing (19). The driving arrangement further comprises an electric motor (31) which is adapted to provide the reciprocating movement of the bar element (23).The bar element extends through the rotor (31b) of the electric motor (31). The electric motor is an electric rotary motor. The invention also relates to a pump assembly with a plurality of such driving arrangements.

ПРИВОДНОЕ УСТРОЙСТВО ДЛЯ ПРИВЕДЕНИЯ В ДЕЙСТВИЕ НАСОСА ИЛИ КОМПРЕССОРА

Представлено приводное устройство (11) для приведения в действие насоса, компрессора или аналогичного устройства, выполненное с возможностью обеспечения переменного давления по меньшей мере в двух камерах (27а, 27b, 27', 27"), например в камерах насоса или компрессора, вследствие возвратно-поступательного перемещения стержня (23). Стержень соединен с двумя подвижными поверхностями камеры давления, например с поршнями (21а, 21b) или штоками, соединенными с указанными камерами посредством проточного соединения, при этом стержень (23) закреплен в корпусе (19) с возможностью совершения возвратно-поступательного перемещения. Приводное устройство дополнительно содержит электродвигатель (31), выполненный с возможностью обеспечения возвратно-поступательного перемещения стержня (23). Стержень проходит через ротор (31b) электродвигателя (31). Электродвигатель представляет собой роторный электродвигатель. Кроме того, изобретение относится к насосному узлу с большим количеством таких приводных устройств ...

РАБОТАЮЩИЙ НА МАГНИТНОЙ ЖИДКОСТИ ЭЛЕКТРОМАГНИТНЫЙ ПРИВОД ДЛЯ НАСОСА КРОВИ, ПРИМЕНЯЕМЫЙ ДЛЯ ПОДДЕРЖКИ РАБОТЫ СЕРДЦА ЛИБО ДЛЯ ЧАСТИЧНОЙ ИЛИ ПОЛНОЙ ЕГО ЗАМЕНЫ

Multiway coaxial fluid conveying pump

Fluid drive device

Novel sanitary rotor pump

Corrosion-resisting pump with U-shape pipe and external rotor

PUMP ENDOSTALTIQUE FOR PUMPABLE FLUID

INJECTION PUMP Of a FLUID, AND IN PARTICULAR MICROPUMP USABLE TO DELIVER a GIVEN AMOUNT

La pompe est dépourvue de pièces mécaniques mobiles et comprend un réservoir (1) à manchon de dispense du fluide (3) qui reste entièrement ouvert, mais dont le capillaire intérieur est trop fin pour permettre la dispense de fluide au repos. On recourt donc à un dispositif résonateur (2) à excitateur piézoélectrique (4a, 4b, 5), qui produit des vibrations, notamment de flexion, du manchon (3) pour obliger le fluide à le parcourir à un débit déterminé dépendant des caractéristiques de la pompe et de l'excitation. L'ensemble peut être miniaturisé et utilisé comme dispositif implantable, notamment pour le traitement de pathologies de l'audition, pour délivrer un médicament, ou, dans certaines réalisations, opérer également des prélèvements de fluide ambiant. Une alimentation d'énergie à distance est possible.

PUMP PROPORTIONING

압전 액츄에이터 및 이를 포함하는 전자기기

... 보다 간단하고 작은 구조로 최대 운동력을 전달하여 효율적인 압전 액츄에이터 및 이를 포함하는 전자기기가 제공된다. 본 발명에 따른 압전 액츄에이터는 제1압전부, 제2압전부 및 제3압전부를 순차적으로 포함하는데, 제2압전부의 표면에서만 표면파 회전운동이 발생한다.

INFUSION PUMP

Infusion pumps according to the present invention maximize fluid throughput while minimizing vaporization of gas by employing specific flow path architecture, flow path dimensional ranges, and voltage and frequency ranges for activation of piezoelectric bodies.

PULSE ACTIVATED ACTUATOR PUMP SYSTEM

A pump system containing no external parts or valves is provided. The pump system is characterized by a common type of actuating mechanism and incorporates reversibly expanding actuators, preferably eletroactive actuators. Fluid is caused to move at a selected flow rate and direction by sequentially activating contiguous actuators located inside the pump. The pump may be used to pump a variety of fluids and may be used in varius industrial, commercial, medical. Aeronautical, or military applications.

DOSING DEVICE WITH SPRING RESTORATION

The invention concerns an electromagnetically operable and controllable dosing device for dispensing precise volumes of fluids (F) of various types and viscosities. It is proposed that the armature element (3) should be mounted outside the dosing housing (8a, 8b) and downstream of the pump chamber so as to be capable of sliding and coupled mechanically (9, 10) with the sliding flap valve (5) which forms the pump element. The valves (5, 7), which can move relative to one another and define the pump chamber, are connected to one another so as to form a seal via a spring restoring element (12) which is radially rigid and non-deformable but axially compressible.

MICROPUMP

A micropump that includes: a tube frame including an elastic tube, and a tube guide groove for attachment of the tube in the form of an arc; a cam drive wheel whose rotation center is the same as an arc center of the tube guide groove, and moves in response to a motor that can be rotated in forward and reverse directions; a first cam that is axially fixed to a center axis of the cam drive wheel, and is provided with a finger depression section at a circumferential portion thereof; a second cam that is pivotally supported by the center axis of the cam drive wheel to be able to rotate, and is provided with a finger depression section at a circumferential portion thereof; and a plurality of fingers provided between the tube and the respective finger depression sections of the first and second cams radially from the rotation center. The micropump can be in a first state of continuously feeding a fluid by, when the first cam is rotated in the forward direction, the first cam pushing and rotating ...

Dual bellows pump with drive circuit through bellows

A pump includes a pair of circular metal bellows rigidly secured to the pump housing at the perimeter of their accordion-like ring structures and interconnected at their centers so as to be capable of flexing in phase. An electrical coil is attached to the interconnected bellows and is axially movable with the bellows. The coil is surrounded by a permanent magnet structure secured to the pump housing. Each bellows communicates with an associated fluid chamber which has a valve structure for the inlet and outlet of fluid. The coil is electrically connected to an alternating current power supply, the connection being made through the electrically conductive bellows. The bellows flex in phase in the presence of the alternating current to the coil and thus alternately pull fluid in and force fluid out of the respective fluid chambers. Since the fluid chambers are connected to a common fluid output and since the bellows axially flex in phase, there are two pressure pulses per pump cycle.

Metering pump

A metering pump for determining the quantity of a fluid flowing at an externally-determined rate, e.g., for measuring the volume of a gas, such as air, flowing through a flow-restrictive element, such as a filter, has a variable-volume chamber (e.g., a bellows) including a movable wall which is urged in one direction (e.g., toward expansion if an inspirator) by resilient means and is driven in the opposite direction by mechanical means, such as a reciprocable lever arm which engages the wall but leaves it during a part of its movement, said means having electrical contacts in a circuit which powers an electrical motor driving the mechanical means, the contacts being open when the mechanical means leaves the wall, permitting the wall to move at a rate determined by the fluid flow rate. Counting means, such as a counter, are coupled to the electric motor or circuit for counting the movements of the wall.

TUBE PUMP

There is provided a tube pump (100) including: a first roller unit (10) and a second roller unit (20) that rotate around an axis (X1) while being in contact with a tube (200); a drive shaft (30) coupled to the first roller unit (10); a drive cylinder (40) arranged on an outer peripheral side of the drive shaft (30) and coupled to the second roller unit (20); a first drive unit (50) that rotates a first drive shaft (51) around a first axis (X1); a second drive unit (60) that rotates a second drive shaft (61) around a second axis (X2); and a transmission mechanism (70) that transmits a drive force of the second drive shaft (61) to an outer peripheral surface of the drive cylinder (40), in which the first drive unit (50) and the second drive unit (60) are arranged so that a first arrangement position of the first drive unit (50) and a second arrangement position of the second drive unit (60) in a first axis (X1) direction overlap with each other.

Apparatus for transferring small amount of fluid

Pump

A pump for viscous substances comprises a pump chamber (1) with an inlet (18), intended for connection to a source of the substance to be pumped, and an outlet (12), equipped with a valve, for pumping out the substance sucked into the pump chamber during an intake phase. The pumping action is achieved by varying the volume of the pump chamber. A unit is arranged to control variations in the volume of the pump chamber so the delivery phase is considerably shorter than the intake phase. The inlet is further devised so it presents a greater resistance to flow than the outlet when the outlet valve (7) is open, so backflow of substance through the inlet during the delivery phase is only corresponds to a fraction of the stroke volume of the pump. ...

ПЕРИСТАЛЬТИЧЕСКИЙ НАСОС-СМЕСИТЕЛЬ ДЛЯ СИЛЬНО СГУЩЕННЫХ ВЕЩЕСТВ

Изобретение относится к перистальтическим насосам с электромагнитным приводом, может быть использовано при перекачивании сильно сгущенных веществ, высоковязких, а также хрупких жидкостей и гелей. Cодержит внешнюю трубу-оболочку, в которой расположена рабочая камера - канал. Рабочая камера-канал выполнена из магнитоактивного эластомера, возбуждаемого генератором бегущего поля. На внутренней поверхности рабочей камеры выполнены не менее 3-х шнеков, вершины которых в просвете сечения трубопровода образуют угол 120°, обеспечивая спирализацию транспортируемого потока. Изобретение позволит повысить эффективность транспортирования высоковязких веществ и сильно сгущенных паст за счет использования бегущих волн деформации рабочей камеры-канала, обеспечивающих продвижение транспортируемого материала с низким напряжением сдвига, а внутренний рельеф позволит избежать расслаивания неоднородных сред. 2 ил.

НАСОС ДЛЯ ИНФУЗИИ

... 1. Насос для инфузии, включающий в себя корпус, расположенную в корпусе емкость, заполняемую жидкостью, с заливной горловиной и выводом, катетер, расположенное между емкостью и катетером работающее от аккумулятора перекачивающее устройство, подающее жидкость в количестве, регулируемом с помощью электронного управляющего устройства, отличающийся тем, что перекачивающее устройство (23) выполнено действующим на основе пьезоэлектрического эффекта. 2. Насос для инфузии по п.1, отличающийся тем, что перекачивающее устройство (23) представляет собой трубу (пьезонасос 23), выполненную из пьезоэлектрических кристаллов и образованную по меньшей мере из двух отрезков (23а) и (23b) трубы, причем на отрезке (23а) и (23b) трубы может быть подан электрический ток или напряжение. 3. Насос для инфузии по п.2, отличающийся тем, что пьезонасос (23) с одной стороны осуществляет подачу жидкости во ввод (29), имеющий затвор, по отрезку (23а) или (23b) трубы, а с другой стороны к вводу (29) может быть присоединен ...

Electrically-operated immersion pump - has electromagnetically-controlled, alternately-compressed upper and lower bellows inside immersion tube suspended from head

The immersion pump which is electrically operated has two corrugated tubes (5,6) or bellows between its inlet and outlet valves, enclosed by a tube (3). Between them is an armature (7) with a return spring (10) around it, passing through a magnetic coil (9). As one bellows is expanded, the other is compressed, the difference in volumes giving the pumping action. The outer tube is suspended from a head with an outlet from the discharge valve. The stroke is regulated by an adjusting screw projecting from the top of the head. This raises or lowers a plate with pins (17a) extending downwards to control the position of a collar (19) above the spring.

PERISTALTIC PUMP

... 1530662 Peristaltic fluid-machines MULLARD Ltd 1 March 1976 08049/76 Heading F1U A pump for liquids comprises coaxial cylinders 1, 2 with an annular space therebetween communicating with inlet and outlet ports 3, 4 for the working fluid, at least one of the cylinders being made of a Piezo-electric ceramic material, which is polarized radially, and having at least three rings 8 to 20 formed in its surface farthest from the said space. Pumping is effected by electrically energizing the said rings sequentially through leads 21 to 33, the energization of each ring causing the cylinder to expand and close the portion of the said space circumjacent the ring. Suitable dimensions and materials for the cylinders are given in the Specification.

DEVICES FOR TRANSFERRING LIQUID FROM ONE LOCATION TO ANOTHER

... 1383935 Reciprocating pumps DIVERSEY DEVELOPMENT Ltd 4 June 1973 [21 June 1972] 28948/72 Heading F1A A pump, e.g. for transferring detergent from a container to a dish-washing machine, comprises a soft iron tube 1 connected by bellows 4, 6, e.g. of plastics, metal or rubber, to inlet and outlet pipes 9, 3, non-return valves 7, 8 and 10 being provided, and the tube being reciprocated by A.C. energization of an induction coil 11. Delivery may be regulated by controlling the width or the width and amplitude of the A.C. pulses or by a thyristor. Alternatively, Fig. 2 (not shown), a bypass (12) incorporating an adjustable throttle valve (13) may be connected upstream of bellows 6 and downstream of valve 8. The tube 1 may have a corrosion-preventing coating.

Improvements in reciprocating pumps particularly for surgical purposes

... 725,063. Reciprocating electric motors. TREMBLAY, J. L. June 11, 1953, No. 16121/53. Class 35. [Also in Groups VI, XXVIII and XXIX] A reciprocating pump comprises a tube 28 containing two bellows 35, 36 connected at their ends to caps 43, 44 and also to an armature member 34 which is reciprocated by electromagnets 30, 31, 32 surrounding the tube 28; the electromagnet 30 moves the armature in one direction and the electromagnets 31, 32 in the other direction. The tube 28 is welded to a container 14, filled with liquid and fitted with a circulator rotor 23 driven by a motor 20; a heating coil 26 is fitted in the casing to maintain the temperature of the liquid pumped. The system for energizing the electromagnet 30 or the electromagnets 31, 32 includes a commutator driven by a variable-speed electric motor, adjustable to vary the speed of the pump, and actuating two relays alternately controlling the output of each of two thermionic valves. The pressure of the liquid pumped is controlled by ...

STEERING METERING PUMP

PROCEDURE FOR PROMOTING A FLUID AND A MICRO PUMP FOR THIS

VALVE LOTS PUMP

FLUID PUMP

Method and apparatus for a molded tube and peristaltic pump

PULSE ACTIVATED ACTUATOR PUMP SYSTEM

A pump system containing no external parts or valves is provided. The pump system is characterized by a common type of actuating mechanism and incorporates reversibly expanding actuators, preferably eletroactive actuators. Fluid is caused to move at a selected flow rate and direction by sequentially activating contiguous actuators located inside the pump. The pump may be used to pump a variety of fluids and may be used in varius industrial, commercial, medical. Aeronautical, or military applications.

CONVEYING DEVICE WITH PERISTALTIC MOVEMENT

A conveying device with peristaltic movement includes a flexible transport tube and a two-way shape memory alloy. The two-way shape memory alloy is mounted on the surface of the transport tube. When the two-way shape memory alloy is electrically conducted and heated, the cross-sectional area of transport path in the flexible transport tube contracts by the contrastive force resulting therefrom. When electrically conducting and heating the two-way shape memory alloy is terminated, the original cross-sectional area of transport path in the flexible transport tube is restored by the recovery force thereof. The position of the flexible transport tube at which the contraction and the restoration are applied to is sequentially moved in a predetermined direction by a temperature controlling device, so as to convey an object within the flexible transport tube in the predetermined direction.

DIAPHRAGM PUMP WITH A CRINKLE DIAPHRAGM OF IMPROVED EFFICIENCY

L'invention est relative à une pompe à membrane ondulante (2) montée pour onduler entre deux flasques (1) sous l'action d'au moins un actionneur électromagnétique en vue de transférer du fluide d'une entrée de la pompe à une sortie de la pompe, la pompe comportant des moyens d'adaptation (6; 20;30) reliant le support de membrane et une partie mobile (12) de l'actionneur pour diminuer la course de la masse mobile de l'actionneur de sorte que celle-ci soit plus petite que la course du support de membrane (3).

Driving arrangement for a pump or compressor

Driving arrangement (11) for a pump, compressor or similar, is adapted to provide alternating pressure in at least two chambers (27a, 27b, 27', 27''), such as chambers of a pump or compressor, as result of a reciprocating movement of a bar element (23). The bar element is connected to two movable pressure chamber faces being pistons (21a, 21b) or plungers having fluid connection to said chambers, which bar element (23) is reciprocally supported in a housing (19). The driving arrangement further comprises an electric motor (31) which is adapted to provide the reciprocating movement of the bar element (23). The bar element extends through the rotor (31b) of the electric motor (31). The electric motor is an electric rotary motor. The invention also relates to a pump assembly with a plurality of such driving arrangements.

Grouting pump special for steel bar grouting connection

Based on piezoelectric fiber composite material are driven bistable inertia manual application of electric pump

PROCESS AND APPARATUS TO MANAGE A SUBSTANCE BY DIFFUSION HAVE A MAMMAL

High frequency medical drip feed pump - has sealing valve downstream of electromagnetically operated pumping piston

Electromagnetic pump with rotary cycle

Process and device of repression of thick substances

Electromagnetic device of order and its applications, in particular with the pumps

POWER TRANSMISSION DEVICE FOR VOLUMETRIC PUMP

The present invention relates to a power transmission device for a volumetric pump, transferring waste water at a uniform amount to enable the amount of the waste water and a coagulant inputted to a chemical treatment tank to be always mixed at a constant ratio to enable sludge contained in the waste water to be coagulated to be removed. More specifically, the present invention saves an occupy space of the power transmission device for a volumetric pump and transmits power to a volumetric pump. COPYRIGHT KIPO 2017 ...

METERING TUBE PUMP, AND CONTROL SYSTEM AND METHOD THEREOF

The present invention relates to a metering tube pump and a control system thereof. According to the present invention, a metering tube pump management apparatus comprises: a metering tube pump assembly including a motor and an additional device related to driving of the motor; a state detection unit detecting the state of the metering tube pump assembly; a motor control unit controlling the operation of the motor; a communication unit communicating with outside; and a control unit determining a driving error of the metering tube pump assembly by comparing the state information of the metering tube pump assembly, detected through the state detection unit, with pre-stored state information, controlling the driving speed of the motor through the motor control unit when the driving error occurs, and reporting the occurrence of the error occurrence to a metering tube pump management server through the communication unit. Accordingly, the state of one or more metering tube pumps installed at ...

PIEZOELECTRIC ACTUATOR AND MICROFLUIDIC DEVICE

The present invention relates to a piezoelectric actuator and to a microfluidic device, such as a microvalve or micropump. The piezoelectric actuator (100) comprises a deflectable actuator membrane (102), and at least one piezoelectric element (104 A, B) operable to perform expansion and contraction motion (106) depending on an electric field applied to the piezoelectric element, wherein the piezoelectric element is attached to a part of the actuator membrane for exerting mechanical force on the membrane. According to the present disclosure, the piezoelectric element leaves open a central region of the membrane and has a peripheral outline that does not coincide with an outline of the actuator membrane.

Transporter pump

PCT No. PCT/SE88/00354 Sec. 371 Date Feb. 22, 1989 Sec. 102(e) Date Feb. 22, 1989 PCT Filed Jun. 23, 1988 PCT Pub. No. WO88/10371 PCT Pub. Date Dec. 29, 1988.A transporter includes at least one elongated transporting element (1) which is made of a material capable of changing its volume in response to the application of voltage or magnetic fields thereacross. The transporting element, optionally together with a further transporting element or some other part of the transporter, defines an elongated transporting channel (7). Means are provided for generating fields in predetermined regions along the transporting element (1) and in a given order of sequence, such as to impart substantially peristaltic motion to the element. These means include at least three mutually adjacent conductors (3, 4, 5) which extend substantially helically in relation to the transporting element (1) and to which different phases of a multi-phase alternating voltage or alternating current source are applied.

Method and system for the production of cells and cell products and applications thereof

A cell culture system for the production of cells and cell derived products includes a reusable instrumentation base device incorporating hardware to support cell culture growth. A disposable cultureware module including a cell growth chamber is removably attachable to the instrumentation base device. The base device includes microprocessor control and a pump for circulating cell culture medium through the cell growth chamber. The cultureware module is removably attached to the instrumentation base device. Cells are introduced into the cell growth chamber and a source of medium is fluidly attached to the cultureware module. Operating parameters are programmed into the microprocessor control. The pump is operated to circulate the medium through the cell growth chamber to grow cells or cell products therein. The grown cells or cell products are harvested from the cell growth chamber and the cultureware module is then disposed.

Piezoelectric micro-blower

A piezoelectric micro-blower includes a blower chamber located between a blower body and a vibrating plate, a first wall portion of the blower body arranged to face the vibrating plate across the blower chamber so as to vibrate with vibrations of the vibrating plate, a first opening in the first wall portion, a second wall portion on the opposite side of the first wall portion with respect to the blower chamber, a second opening in a portion of the second wall portion which faces the first opening, and an inflow passage located between the first wall portion and the second wall portion. Each of the first and second openings includes a plurality of holes, and each hole of the first opening and each hole of the second opening are arranged to face each other. Thus, noise is significantly reduced while the flow characteristic is maintained.

VALVELESS PUMP

A valveless, pulsatile, non-contact, positive displacement, finger-pump for pumping one or more fluids is disclosed. The pump can include one or more channels for holding one or more lengths of flexible tubing. The channels can include an adjustment mechanism and/or a resilient backing plate to reduce over compression of the tubing. The pump can utilize a plurality of profiled, pivoting fingers to sequentially occlude a length of tubing causing a pumping action. The fingers can be moved from the first position to the second position by a motor driven camshaft. Cam lobes disposed on the camshaft can be a modified eccentric design to improve tube occlusion and pump efficiency. At least one cam lobe can completely occlude the tubing at all times during operation to prevent backflow. The fingers can alternatively be moved from the first position to the second position by a variety of linear actuators. 1. A pump system for pumping one or more fluids comprising: a first tubing holder for holding a length of flexible tubing; and', 'a first axle disposed in the housing;, 'a housing comprisinga plurality of fingers, each finger comprising an axle hole at a distal end of each finger, wherein each finger is pivotally coupled to the first axle; anda drive system configured to move each of the plurality of fingers sequentially from a first position to a second position;wherein each of the fingers at least partially occludes a portion of the flexible tubing in the second position.2. The pump system of claim 1 , wherein each of the fingers substantially completely occludes the portion of the flexible tubing in the second position.3. The pump system of claim 1 , wherein the tubing holder comprises a channel and a plane surface; andwherein each of the plurality of fingers compresses the flexible tubing between the finger and the plane surface when the finger is in the second position.4. The pump system of claim 3 , wherein the plane surface further comprises a resilient cover to ...

PUMP ELEMENT FOR A TUBE PUMP

The invention relates to a tube pump comprising a tube and a pump element inserted in the tube, where the pump element comprises a rod element and a first and a second non-return valve member positioned a distance apart on the rod element. The valve members are oriented in the same direction relative to the rod element so as to allow for a fluid flow in the tube through the first valve member, along the rod element, and through the second valve member. The tube comprises an at least partly flexible tube portion between the valve members such that a repeated deformation of the flexible tube portion acts to alternately close and open the valve members thereby generating a fluid flow through the tube. The invention further relates to a pump element comprising at least two non-return valve members connected by a rod element, and for insertion in an at least partly flexible tube in such tube pump as mentioned above, thereby acting to generate a fluid flow through the tube upon repeated deformation of the tube between the two valve members. The pump element may comprise a connecting part for coupling to another tube and may comprise a sealing part establishing a fluid tight connection to a part of the tube. The invention further relates to a method for creating a flow of a fluid within an at least partly flexible tube by means of a pump element as mentioned above. 1. A tube pump comprising a tube and a pump element inserted in said tube , the pump element comprising a rod element and at least a first and a second non-return valve member positioned a distance apart on said rod element and oriented in a same direction relative to the rod element so as to allow for a fluid flow in the tube through the first valve member , along the rod element , and through the second valve member , and the tube comprising an at least partly flexible tube portion between said first and second valve members such that a repeated deformation of said flexible tube portion acts to alternately ...

Methods and Systems for Applying Charge to a Piezoelectric Element

Methods and systems for applying charge to a piezoelectric element include and/or facilitate implementation of processes including cyclical multi-stage processes for: providing a piezoelectric element with an accumulated charge; providing one or more charge holding elements with a scavenged charge from the piezoelectric element; substantially removing or discharging a remaining charge from the piezoelectric element; and applying the scavenged charge to the piezoelectric element with an opposite polarity in relation to the polarity of the remaining charge.

CONTROL UNIT, TUBE UNIT, AND MICROPUMP

A micropump including a tube unit including an elastic tube disposed in an arc shape, a plurality of fingers disposed radially from the arc shape of the tube, and a guide frame, which holds the tube and the plurality of fingers. The micropump also includes a control unit including a cam that presses the plurality of fingers, a drive section that applies torque to the cam, a control circuit that carries out a drive control of the drive section, and a machine casing that holds the cam, drive section, and control circuit. The tube unit is mountable in and removable from the control unit in a direction approximately parallel to the plane of rotation of the cam, and is mounted inside a space provided in the machine casing. 1. A micropump comprising:a tube unit including a tube, and a plurality of fingers;a control unit including a cam, and a control circuit;wherein the tube unit has a power source which supplies electric power to the control circuit, and the tube deforms via the plurality of fingers in accordance to the rotation of the cam driven by the control circuit.2. The micropump according to claim 1 ,wherein the power source is removably mounted in the tube unit. This application is a divisional of U.S. patent application Ser. No. 12/542,751 filed on Aug. 18, 2009. This application claims the benefit of Japanese Patent Application No. 2008-249798 filed Sep. 29, 2008. The disclosures of the above applications are incorporated herein by reference.1. Technical FieldThe present invention relates to a tube unit, a control unit, and a micropump configured with them mounted thereon.2. Related ArtAs an apparatus which transports a liquid at a low speed, there is a peristaltic drive type pump. As the peristaltic drive type pump, a structure is known in which a rotor including a plurality of rollers is rotated with a step motor as a drive source, and the rotor rotates along a soft tube while causing the plurality of rollers to roll, carrying out a suction and discharge of a ...

PIEZOELECTRIC MOTOR, ROBOT HAND, ROBOT, ELECTRONIC COMPONENT TRANSPORTING APPARATUS, ELECTRONIC COMPONENT INSPECTING APPARATUS, LIQUID FEEDING PUMP, PRINTING APPARATUS, ELECTRONIC TIMEPIECE, PROJECTING APPARATUS, AND TRANSPORTING APPARATUS

A vibration case includes a first side portion and a second side portion provided on the both sides of a vibrator in a bending direction and a coupling portion configured to couple the first side portion and the second side portion. In this configuration, stiffness of the vibrator in the bending direction is increased, and the deformation of the vibration case may be suppressed. This structure contributes to reduction in size of the vibration case as long as the same stiffness is secured, and hence the size of the vibration case may be reduced while securing high stiffness. Therefore, a piezoelectric motor having a driving accuracy secured sufficiently may be realized while suppressing increase in size of the piezoelectric motor. 1. A piezoelectric motor comprising a vibrator of a piezoelectric material , and configured to vibrate in a stretching direction and a bending direction by an application of a voltage; anda vibration case in which the vibrator is accommodated,the vibration case includes:a first side portion provided in the bending direction with respect to the vibrator;a second side portion provided on the side opposite to the first side portion with the vibrator interposed therebetween; anda coupling portion provided in a direction orthogonal to the bending direction and the stretching direction with respect to the vibrator, and configured to couple the first side portion and the second side portion.2. The piezoelectric motor according to claim 1 , whereinthe length of the first side portion in the stretching direction, the length of the second side portion in the stretching direction, and the length of the coupling portion in the stretching direction are formed to be longer than the length of the vibrator in the stretching direction.3. The piezoelectric motor according to claim 1 , whereinthe first side portion, the second side portion, and the coupling portion each have a plate-like portion, andthe thickness of the plate-like portion that the coupling ...

SELF PUMPING AND SENSING HOSE UTILIZING ELECTROACTIVE POLYMER STRIPS

One or more electroactive polymer (EAP) strips are circumferentially or lengthwise embedded or mounted around the fluid passage member. The EAP strips are configured to function as a pump when a prescribed electrical charge is applied and removed from the EAP strips, which causes the EAP strips to expand and constrict accordingly. A series of these strips may be mounted along a portion of the fluid passage member and electrically actuated in a prescribed manner to exert a squeezing force around the fluid passage member, which functions to pump fluid through the fluid passage member. The EAP strips also change electrical characteristics (e.g., capacitance, resistance) independent of the applied actuation as they are stretched, so they may be used to measure fluid pressure and/or fluid flow rate. 1. A self-pumping fluid passage member comprising:a fluid passage member having an outer surface, an inner surface, a fluid inlet port, and a fluid outlet port;a plurality of strain actuators, wherein each of the strain actuators is spaced apart and coupled circumferentially around at least a portion of the fluid passage member;a controller coupled to each of the plurality of strain actuators, wherein the controller is configured to selectively activate each of the strain actuators to force fluid through the portion of the fluid passage member.2. The self-pumping fluid passage member of claim 1 , wherein each of the plurality of strain actuators are electroactive polymer strips.3. The self-pumping fluid passage member of claim 1 , wherein each of the plurality of strain actuators is configured to apply a first compressive force against the outer surface of the fluid passage member in a first state and apply a reduced compressive force against the outer surface of the fluid passage in a second state.4. The self-pumping fluid passage member of claim 1 , wherein the controller sequentially applies a drive current to each of the plurality of strain actuators.5. The self-pumping ...

MICROFLUIDIC PUMP APPARATUS AND METHODS

An apparatus and method, the apparatus comprising: a microfluidic channel (); an electromechanical gel () provided within the microfluidic channel (); at least one pair of electrodes () wherein the at least one pair of electrodes () are configured to control the electric field across the microfluidic channel () to cause the electromechanical gel () to deform in response to a voltage applied to the electrodes () such that the deformation enables fluid to be pumped through the microfluidic channel (). 115-. (canceled)16. An apparatus comprising:a microfluidic channel;an electromechanical gel provided within the microfluidic channel;at least one pair of electrodes wherein the pair of electrodes is configured to control an electric field across the microfluidic channel;wherein the at least one pair of electrodes are configured to control the electric field across the microfluidic channel to cause the electromechanical gel to deform in response to a voltage applied to the electrodes such that the deformation enables fluid to be pumped through the microfluidic channel.17. An apparatus as claimed in claim 16 , wherein the at least one pair of electrodes is configured to enable the voltage to be provided perpendicular to a direction of fluid flow within the microfluidic channel.18. An apparatus as claimed in claim 16 , wherein the at least one pair of electrodes is configured to provide a voltage across the microfluidic channel.19. An apparatus as claimed in claim 16 , wherein the at least one pair of electrodes is configured to provide a voltage close to the microfluidic channel.20. An apparatus as claimed in claim 16 , wherein the apparatus comprises a plurality of pairs of electrodes.21. An apparatus as claimed in claim 16 , wherein the plurality of pairs of electrodes extend parallel to a direction of fluid flow within the microfluidic channel.22. An apparatus as claimed in claim 16 , wherein the plurality of pairs of electrodes are configured to sequentially apply a ...

Patch-Sized Fluid Delivery Systems and Methods

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device. 1. A method for delivering an infusion medium to a user , the method comprising:providing a first housing portion and a second housing portion;providing the first housing portion and the second housing portion with connection structure to allow the first housing portion and the second housing portion to be selectively engaged with each other for operation and disengaged from each other to allow disposal of the first housing portion without disposing of the second housing portion;providing a pumping assembly;providing a first exit valve in the pumping assembly wherein the first exit valve inhibits fluid flow from a reservoir to a pump exit;providing a dispensing assembly downstream from the pumping assembly, and in fluid communication with the reservoir by a flow line;providing an exit assembly downstream from the dispensing assembly, the exit assembly in fluid communication with the pump exit: andmaintaining the infusion medium in the first housing portion so as to not contact the second housing portion.3. A method according to claim 1 , wherein the one-way valve comprises a duckbill valve structure.4. A method according to claim 1 , further comprising connecting ...

PUMP ARRANGEMENT

A pump arrangement having a unit which comprises a material with a magnetocaloric action, an arrangement of conduits which are in the region of the unit and through which a liquid or gaseous heat-conduction medium flows and a pump system operating according to travelling-wave principles. 1. A pump arrangement for a device with a material having a magnetocaloric effect , the pump arrangement comprising:a conduit arranged in an area of the device through which conduit a liquid or gaseous heat transfer medium flows,a multi-pole axial flux electrical motor having a disc-shaped rotor rotatably, mounted on a shaft for rotation about an axis of rotation, and a disc-shaped stator, wherein the rotor is provided permanent magnets, wherein the stator is provided electrical coils, wherein the permanent magnets and coils are provided coaxially on the same plane relative to the axis of rotation, and an inlet and an outlet in communication with the conduit arranged in the area of the device through which a liquid or gaseous heat transfer medium flows and in communication with a tubular membrane provided on the stator,', 'a cam provided on the rotor, the cam in contact with the tubular membrane,, 'a pump system at least partially integrated in a space formed between the rotor and the stator of the electrical motor, the pump system including'}wherein rotational movement of the rotor relative to the stator causes the cam to pass periodically over the tubular membrane causing the liquid or gaseous heat transfer medium to be conveyed on the traveling wave principle from inlet to outlet.2. The pump arrangement according to claim 1 , wherein the tubular membrane is provided on a radially inner surface of the stator and the cam is provided on an axial face of the rotor.3. The pump arrangement according to claim 1 , wherein means are provided for periodically subjecting the material having the magnetocaloric effect to a magnetic field.4. The pump arrangement according to claim 1 , wherein ...

ADHESIVE AND PERIPHERAL SYSTEMS AND METHODS FOR MEDICAL DEVICES

Fill stations and base stations are provided for personal pump systems. The fill stations may be opened and closed to accept a reservoir and to allow fluid to be introduced into the reservoir for use with personal pump systems. The fill stations may hold the reservoir at a tilt relative to an underlying surface and may discourage overfilling of the reservoir. The filling stations may also include viewing windows having fluid lines marked thereon for indicating volume of fluid within the reservoir. 1. A system for controlling a wearable medical device , the system comprising: short-range reception circuitry for, over the given range, receiving signals to the wearable medical device;', 'short-range transmission circuitry for, over the given range, transmitting signals to the wearable medical device;', 'longer-range transmission circuitry for, over a longer range exceeding the given range, transmitting the received signals to a user interface located remotely from the patient, longer-range reception circuitry for, over the longer range, receiving signals from the user interface; and', 'an alarm for notifying a user of the presence of a fault condition; and, 'an intermediate transceiver comprising interface reception circuitry for receiving signals from the intermediate transceiver; and', 'interface transmission circuitry for transmitting signals to the intermediate transceiver;, 'a user interface comprisingwherein the user interface is configured to receive an alarm signal from the intermediate transceiver and to relay the alarm signal.2. A system in accordance with claim 1 , wherein the interface reception circuitry includes circuitry for receiving signals directly from the wearable device claim 1 , and wherein the interface transmission circuitry includes circuitry for transmitting signals directly to the wearable device.3. A system in accordance with claim 1 , the system further comprising memory for logging received data.4. A system in accordance with claim 1 , the ...

DEVICE HAVING ACTUATING AND SENSING MODULE

A device includes a main body and at least one actuating and sensing module. A length of the main body is 50˜70 mm. A width of the main body is 25˜30 mm. A height of the main body is 9˜15 mm. The actuating and sensing module is disposed in the main body. The actuating and sensing module includes a carrier, at least one sensor, at least one actuating device, a driving and transmitting controller and a battery. The sensor, the actuating device, the driving and transmitting controller and the battery are disposed on the carrier. The actuating device is disposed on one side of the sensor. The actuating device includes a guiding channel. The actuating device is enabled to transport fluid to flow toward the sensor through the guiding channel so as to make the fluid measured by the sensor. 1. A device having actuating and sensing module , the device comprising:a main body having a length in a range between 50 mm and 70 mm, a width in a range between 25 mm and 30 mm and a height in a range between 9 mm and 15 mm; andat least one actuating and sensing module disposed in the main body, wherein the actuating and sensing module comprises a carrier, at least one sensor, at least one actuating device, a driving and transmitting controller and a battery, wherein the sensor, the actuating device, the driving and transmitting controller and the battery are disposed on the carrier,wherein the actuating device is disposed on one side of the sensor and comprises at least one guiding channel, wherein the actuating device is enabled to transport fluid to flow toward the sensor through the guiding channel so as to make the fluid measured by the sensor.2. The device according to claim 1 , wherein the width of the main body is 28 mm claim 1 , and the height of the main body is 11 mm.3. The device according to claim 1 , wherein a ratio of the width to the height is in a range between 1.67 and 3.33.4. The device according to claim 1 , wherein the actuating and sensing module further comprises ...

MICRO PERISTALTIC PUMP

A circular arc shaped flow path () is formed as a microfluidic flow path in a sheet-like microfluidic chip (). A roller () on a rotor () is pressed against the circular arc shaped flow path () in the microfluidic chip (), the rotor () is rotary-driven by a driving motor , and the circular arc shaped flow path () is caused to make a peristaltic motion by rotation of the rotor (), to send a liquid in the flow path. On the flat surface of the rotor (), a plurality of rollers () are held so as to be pressed in contact with the circular arc shaped flow path (), to freely rotate on the flat surface perpendicular to a rotary shaft () of the rotor (). The circular arc shaped flow path () is disposed along the rotational trajectory of the plurality of rollers (). 1. A micro peristaltic pump comprising:a base having a chip housing portion;a sheet-like microfluidic chip housed in the chip housing portion, and having a circular arc shaped flow path which swells out of a flat surface in a substantially mountain shape at its cross section, to be formed into a circular arc shape:a rotor installed in the base so as to be able to he rotary-driven opposite the flat surface of the microfluidic chip a plurality of free-rotating bodies held so as to be pressed in contact with the circular arc shaped flow path to he freely rotatable on a flat surface perpendicular to a rotary shaft of the rotor:a rotary driving means which is attached to an attaching portion of the base, and rotatory-drives the rotor: anda solid member fixed to the base so as to cover the microfluidic chip, whereinthe circular arc shaped flow path is formed such that its radius is the same as a radius of the rotational trajectory of the free-rotating bodies,the rotor is installed so as to be rotatable in an opening portion provided near the chip housing portion of the base,the sheet-like microfluidic chi is house n the chip housing portion with the circular arc shaped flow path faced toward the rotor,the solid member is ...

Piezoelectric element, piezoelectric actuator, piezoelectric motor, robot, electronic component transporting apparatus, and printer

A piezoelectric element includes: a substrate; a first electrode which is disposed on the substrate; a piezoelectric body layer which is disposed on the first electrode, which has a plurality of layers configured to contain a piezoelectric body material, and in which the total thickness of the plurality of layers is within a range of 1.6 μm to 10 μm; and an intermediate layer which is disposed on an interlayer of the piezoelectric body layer, and which is configured to contain titanium.

SOFT ELECTROHYDRODYNAMIC ACTUATOR

A soft electrohydrodynamic actuator includes an actuating unit. The actuating unit includes a flexible pouch, a rod electrode, a dielectric fluid, an enameled wire, a hose and a planar flexible electrode. The inner cavity of the flexible pouch is provided with the rod electrode and filled with the dielectric fluid. The hose is hermetically connected to a side of the flexible pouch. The enameled wire is hermetically sleeved in the hose. One end of the enameled wire extends into the inner cavity of the flexible pouch through the hose and is electrically connected to an end of the rod electrode. The other end of the enameled wire is connected to a high-voltage positive electrode. The outer surface of the flexible pouch is coated with a layer of conductive soft material as the planar flexible electrode, or a water environment around the flexible pouch is used as the planar flexible electrode. 1. A soft electrohydrodynamic actuator , comprising:at least one actuating unit;wherein each actuating unit of the at least one actuating unit comprises a flexible pouch, a rod electrode, a dielectric fluid, an enameled wire, a hose and a planar flexible electrode;the flexible pouch is a deformed body of the soft electrodyrodynamic actuator, and an inner cavity of the flexible pouch is configured as a closed electrode region;the inner cavity of the flexible pouch is provided with the rod electrode and the inner cavity of the flexible pouch is filled with the dielectric fluid;the hose is hermetically connected to a side of the flexible pouch, and the enameled wire is hermetically sleeved in the hose;a first end of the enameled wire extends into the inner cavity of the flexible pouch through the hose and then the first end of the enameled wire is electrically connected to an end of the rod electrode, and a second end of the enameled wire is connected to a high-voltage positive electrode;when the soft electrohydrodynamic actuator is used in air, an outer surface of the flexible pouch ...

Power Tool with Peristaltic Pump

The present invention in one embodiment is a power tool including a housing, a main power shaft located within the housing, a peristaltic pump assembly positioned within the housing and operably connected to the main power shaft, and an outlet conduit operably connected to the peristaltic pump assembly and extending between the peristaltic pump assembly and an outlet port in the housing such that fluid is forced by the peristaltic pump assembly through the outlet conduit to a location outside of the housing.

TUBE PUMP SYSTEM AND METHOD FOR CONTROLLING THE TUBE PUMP SYSTEM

There is provided a tube pump system including: a pair of roller units rotated around an axis line from a contact position to a separate position; a pair of drive units rotating the pair of roller units respectively; and a control unit controlling each of the pair of drive units. A pipe having flexibility is connected to an outflow-side end portion of the tube, and the pipe maintains a pressure of a liquid flowing through the inside of the pipe at a first predetermined pressure higher than an atmospheric pressure. The control unit controls each of the pair of drive units such that a pressure of the liquid in the tube closed due to a contact of the pair of roller units is increased to a second predetermined pressure when one of the pair of roller units passes the separate position. 1. A tube pump system comprising:a housing unit which has an inner peripheral surface formed into a circular-arc shape around an axis line;a tube having flexibility which is arranged along the inner peripheral surface;a pair of roller units which are housed in the housing unit, and are rotated around the axis line from a contact position to a separate position around the axis line in a state where the pair of roller units compress the tube;a pair of drive units which are configured to rotate the pair of roller units respectively around the axis line in a same direction; anda control unit which is configured to control each of the pair of drive units such that a liquid which flows into the tube from one end of the tube is discharged from the other end of the tube, whereina pipe having flexibility is connected to the other end of the tube, the pipe maintaining a pressure of the liquid flowing through the inside of the pipe at a first predetermined pressure higher than an atmospheric pressure, andthe control unit is configured to control each of the pair of drive units such that a pressure of the liquid in the tube which is closed due to a contact of the pair of roller units is increased to a ...

METHOD FOR PRODUCING PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ELEMENT, PIEZOELECTRIC DRIVE DEVICE, ROBOT, AND PUMP

A method for producing a piezoelectric element includes a step of forming a first electrode layer, a step of forming a piezoelectric body layer on the first electrode layer, a step of forming a second electrode layer on the piezoelectric body layer, a step of patterning the second electrode layer, a step of patterning the piezoelectric body layer by wet etching, and a step of forming an organic insulating layer on a side surface of the patterned piezoelectric body layer. 1. A method for producing a piezoelectric element , comprising:a step of forming a first electrode layer;a step of forming a piezoelectric body layer on the first electrode layer;a step of forming a second electrode layer on the piezoelectric body layer;a step of patterning the second electrode layer;a step of patterning the piezoelectric body layer by wet etching; anda step of forming an organic insulating layer on a side surface of the patterned piezoelectric body layer.2. The method for producing a piezoelectric element according to claim 1 , wherein the piezoelectric body layer is formed by repeating formation of a precursor layer by a liquid-phase method and crystallization of the precursor layer.3. The method for producing a piezoelectric element according to claim 1 , wherein the material of the organic insulating layer is a photosensitive material.4. The method for producing a piezoelectric element according to claim 3 , wherein the Young's modulus of the organic insulating layer is 1 GPa or more.5. The method for producing a piezoelectric element according to claim 1 , wherein the thickness of the organic insulating layer is 1.5 times or more and 3 times or less the thickness of the piezoelectric body layer.6. The method for producing a piezoelectric element according to claim 1 , wherein the thickness of the piezoelectric body layer is 1 μm or more and 10 μm or less.7. A piezoelectric element claim 1 , comprising:a first electrode layer;a piezoelectric body layer provided on the first ...

PULSE ACTIVATED ACTUATOR PUMP SYSTEM

A pump system containing no external parts or valves is provided. The pump system is characterized by a common type of actuating mechanism and incorporates reversibly expanding actuators, preferably electroactive actuators. Fluid is caused to move at a selected flow rate and direction by sequentially activating contiguous actuators located inside the pump. The pump may be used to pump a variety of fluids and may be used in various industrial, commercial, medical, aeronautical, or military applications. 155-. (canceled)56. A pump for moving a liquid , comprising:a. an actuator housing having a chamber housing the liquid, the chamber having an inner surface and at least one outlet port for accommodating liquid flow through the chamber;b. a plurality of individual actuators formed of a reversibly responsive elastomeric material, wherein the plurality of individual actuators are arranged in a pattern defining a plurality of flow paths, located in the chamber opposite to the inner surface and in contact with the liquid, wherein successive actuators in a flow path may be sequentially expanded from a starting position to advance the flow of liquid along a selected path through the chamber and out the outlet port; andc. an activator for sequentially controlling individual actuators.57. The pump of wherein the actuator housing comprises two or more chambers for housing the liquid in fluid connection.58. The pump of wherein individual activators are arranged to activate at times and sequences selected to displace the liquid at a chosen rate and flow path.59. A pump of further comprising a controller for activating individual actuators at determined times.60. The pump of wherein the controller is a programmable microprocessor in electrical connection with the activators.61. The pump of further comprising in addition a sensor for determining physical properties of the fluid claim 59 , wherein the sensor is in electrical connection with the controller and is capable of ...

PUMP ARRANGEMENT

A pump arrangement having a unit which comprises a material with a magnetocaloric action, an arrangement of conduits which are in the region of the unit and through which a liquid or gaseous heat-conduction medium flows and a pump system operating according to travelling-wave principles. 1. A pump arrangement comprising a device with a material having a magnetocaloric effect , a conduit arranged in the area of the device through which a liquid or gaseous heat transfer medium flows , and a pump system operating on the traveling wave principle.2. A pump arrangement according to claim 1 , wherein the pump system is provided spatially integrated into the working unit.3. A pump arrangement according to claim 1 , wherein characterized in that the working unit has a rotating working electrical motor having a rotor and a stator and wherein the pump system is at least partially integrated in a space formed between the rotor and the stator of the electrical motor.4. A pump arrangement according to claim 1 , wherein means are provided for periodically providing a magnetic field.5. A method for conveying a heat conducting medium through an arrangement with a material having the magnetocaloric effect claim 1 , comprising rotationally operating claim 1 , at a rotational frequency in the range of 0.2 Hz to 20 Hz claim 1 , a pump system operating on the traveling wave principle and conveying the heat conducting medium.6. The method according to claim 5 , wherein the material which has the magnetocaloric effect is periodically subjected to a magnetic field.7. (canceled)8. A method for conveying a heat conducting medium through an arrangement with a material having the magnetocaloric effect claim 5 , comprising rotationally operating claim 5 , at a rotational frequency in the range of 1 Hz to 10 Hz claim 5 , a pump system operating on the traveling wave principle and conveying the heat conducting medium. Devices using the “magnetocaloric effect” phenomenon to work as heat pumps have ...

System, Method, and Apparatus for Infusing Fluid

A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring-biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube.

PUMP, ESPECIALLY FOR DELIVERING LIQUID FUEL FOR A VEHICLE HEATER

A pump, especially for delivering liquid fuel for a vehicle heater, includes a pump body () providing a pump chamber (). The pump body () is made with magnetic shape memory material at least in some areas. The pump further includes a field-generating arrangement () for generating a magnetic field (M). The magnetic shape memory material of the pump body () can be brought from an initial state into a deformed state by generating a magnetic field (M) by the field-generating arrangement (). A pump chamber volume in the deformed state differs from the pump chamber volume present in the initial state. 1. A pump for delivering liquid fuel for a vehicle heater , the pump comprising:a pump body providing a pump chamber, wherein the pump body is made of a magnetic shape memory material at least in some areas; anda field-generating arrangement for generating a magnetic field, wherein the magnetic shape memory material of the pump body can be brought from an initial state into a deformed state by generating the magnetic field by the field-generating arrangement, and wherein a pump chamber volume in the deformed state differs from the pump chamber volume present in the initial state.2. A pump in accordance with claim 1 , wherein the pump chamber volume is smaller in the deformed state than in the initial state.3. A pump in accordance with claim 1 , wherein the pump body has an essentially tubular design.4. A pump in accordance with claim 1 , wherein the pump body has an essentially round inner cross-sectional geometry in the initial state.5. A pump in accordance with claim 1 , further comprising:an inlet valve leading to the pump chamber; andan outlet valve leading out of the pump chamber.6. A pump in accordance with claim 5 , wherein at least one of the inlet valve and the outlet valve comprises a nonreturn valve.7. A pump in accordance with claim 1 , further comprising a resetting arrangement for resetting the pump body into the initial state claim 1 , the resetting ...

ELECTROACTIVE POLYMER ACTUATOR FOR MULTI-STAGE PUMP

A two-stage pump system is provided using electrostatic actuators. The system includes a pair of hydraulically-amplified, self-healing, electrostatic (HASEL) actuators in fluid communication with one another. Each actuator includes a deformable shell defining a working fluid compartment storing a dielectric fluid. Two electrodes are disposed on opposite sides of the deformable shell. A pair of fluid transfer bladders are disposed adjacent the respective pair of HASEL actuators, each including a fluid-impermeable membrane defining a transfer fluid chamber, and a biasing member disposed in the transfer fluid chamber. When individually actuated in an alternating two-stage pattern, the two electrodes of each respective HASEL actuator move from a neutral position to an attracted position, displacing dielectric fluid through the first transfer conduit and between working fluid compartments, thereby pumping the transfer fluid from an inlet to an outlet. 1. A two-stage pump system using electrostatic actuators , the two-stage pump system comprising: a deformable shell defining a working fluid compartment;', 'a dielectric fluid disposed in the working fluid compartment; and', 'two electrodes disposed on opposite sides of the deformable shell;, 'a pair of hydraulically-amplified, self-healing, electrostatic (HASEL) actuators, each HASEL actuator in fluid communication with one another, and comprisinga first transfer conduit providing two-way fluid communication between the working fluid compartments of the pair of HASEL actuators; a fluid-impermeable membrane defining a transfer fluid chamber; and', 'a biasing member disposed in the transfer fluid chamber;, 'a pair of fluid transfer bladders disposed adjacent the respective pair of HASEL actuators, each fluid transfer bladder configured for pumping a transfer fluid from an inlet to an outlet, and comprisinga second transfer conduit providing selective fluid communication between the pair of fluid transfer bladders,wherein ...

ADHESIVE AND PERIPHERAL SYSTEMS AND METHODS FOR MEDICAL DEVICES

A repeater system may control a pump by using a repeater and a user interface. An adhesive patch system may be used for affixing a pump or other object to a human body. Such an adhesive patch system may include two sets of adhesive members, each member including an adhesive material on at least one side so as to attach to the body. The members of the first set are spaced to allow the members of the second set to attach to the body in spaces provided between the members of the first set, and the members of the second set are spaced to allow members of the first set to detach from the body without detaching the members of the second set. Also, fill stations and base stations are provided for personal pump systems. 1. A delivery device system for delivering an infusion medium to a user , the device comprising:a disposable housing assembly comprising;a base portion defining a reservoir cavity, and comprising a fluid path, the reservoir cavity comprising an outlet port and a septum, the fluid path comprising a fluid channel from the outlet port to a cannula port;at least one flexible membrane attached onto the base portion and forming a top of the reservoir cavity and a top of the fluid channel, wherein the fluid path further comprises a series of regions exposed to the flexible membrane, one of the regions being a valve region;a tubing connected to the base portion at the cannula port, the tubing in fluid communication with the reservoir cavity; anda needle insertion device comprising an introduction needle for inserting a cannula into the user's skin, wherein the disposable housing assembly has a passage through which the introduction needle extends.2. The delivery device system of claim 1 , further comprising a reusable housing assembly adapted to be secured to the disposable housing assembly claim 1 , the reusable housing assembly comprising a volume sensing device claim 1 , wherein the volume sensing device determines the volume of fluid delivered to the user.3. The ...

Piezoelectric actuator, stacked actuator, piezoelectric motor, robot, hand, and liquid transport pump

A piezoelectric actuator includes two substrates, piezoelectric elements that are arranged between the two substrates, and a cladding portion that covers at least a part of a surrounding area of the piezoelectric elements.

Electric device, piezoelectric motor, robot, hand, and liquid transport pump

An electric device includes an electric component that includes an electrode terminal which includes a projection portion, and a circuit substrate that includes a connected portion which is electrically connected to the projection portion, in which the connected portion includes a recess portion that is in contact with the projection portion.

PERISTALTIC PUMP

The present disclosure may relate to a pump including a centerless rim, a first roller guide shaped to roll along the centerless rim such that as the first roller guide is rotated, friction between the first roller guide and the centerless rim causes a corresponding rotation of the centerless rim. The pump may also include a second roller guide shaped to roll along the centerless rim, and a plurality of peristaltic rollers coupled to the centerless rim. The pump may additionally include a tube housing disposed proximate the plurality of peristaltic rollers, and a tube disposed between the tube housing and the peristaltic rollers such that as the centerless rim is rotated, the peristaltic rollers compress the tube against the tube housing to create negative pressure within the tube. 118-. (canceled)19. A device comprising:a centerless rim;a driven roller guide configured to roll along the centerless rim and cause the centerless rim to rotate;a peristaltic roller coupled to the centerless rim and configured to rotate with rotation of the centerless rim; anda tube disposed proximate the peristaltic roller such that as the centerless rim is rotated, the peristaltic roller compresses the tube.20. The device of claim 19 , wherein the driven roller guide is driven by a motor.21. The device of claim 19 , further comprising:a second centerless rim generally parallel with the centerless rim; anda second roller guide configured to roll along the second centerless rim, the second roller guide sharing an axis of rotation with the driven roller guide.22. The device of claim 19 , further comprising one way bearings associated with the driven roller guide such that as an axle of the driven roller guide rotates in a first direction claim 19 , the driven roller guide is also caused to rotate in the first direction claim 19 , and as the axle rotates in a second direction claim 19 , the driven roller guide continues to rotate in the first direction.23. The device of claim 19 , further ...

Patch-Sized Fluid Delivery Systems and Methods

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device. 113-. (canceled)14. A method for delivering an infusible fluid to a user , the method comprising:providing housing with a reservoir of infusible fluid; a drive shaft and a shape-memory alloy actuator operatively connected to selectively move the drive shaft; and a pump device comprising: a housing provided with a barrel, a plunger located in the barrel and receiving a drive force from the drive shaft, an inlet extending to the barrel and configured for connection to the reservoir, an outlet in fluid flow communication with the barrel and configured for connection in fluid flow communication with an injection site;securing the housing to a user;energizing the shape memory alloy actuator wherein the drive shaft is moved;moving the plunger to a fill position along a longitudinal axis of the barrel with the drive shaft, wherein fluid is allowed to flow through the inlet and into the barrel;obstructing the flow of the fluid through the inlet;moving the plunger to a dispense position with the drive shaft, wherein the volume of the barrel is reduced to force fluid in the piston chamber out of the outlet; 'disengaging the housing from the user.', 'injecting the infusible ...

Device to Determine Volume of Fluid Dispensed

An apparatus for determining the volume of fluid dispensed. The apparatus has an acoustic volume sensor that acoustically excites a reference volume and a measurement chamber with a loudspeaker and measures the acoustic response with microphones acoustically coupled to the reference and the measurement chamber. The loudspeaker and sensing microphones are connected to the measurement chamber by separate ports. A detachable dispensing chamber is coupled to the acoustic volume sensor. The volume of the fluid dispensed is determined by a processor based on the acoustic response of the microphones to acoustic excitement by the loudspeaker. 1. A medical liquid delivery system comprising:a user interface assembly comprising at least one of a vibratory signal and an audible signal; a wireless module in communication with the user interface assembly;', 'a rigid structure and a membrane variably defining a dispensing chamber, the dispensing chamber receiving liquid and covered by a membrane; and', 'a volume sensor mated to the membrane and defining a metering volume, the volume sensor capable of measuring a volume of the metering chamber; and, 'a liquid delivery device comprisinga processor in communication with the communication module and the volume sensor, the processor configured receive volume measurements from the volume sensor, to update a sum of positive volume changes in the metering volume, to compare the updated sum to a predetermined value and control an action of at least one of the liquid delivery device and user interface assembly based on the comparison.2. The medical liquid delivery system of wherein the user interface assembly is separate from the liquid delivery device and capable of wireless communication with the liquid delivery device.3. The medical liquid delivery system of claim 1 , wherein the user interface assembly is integrated into at least one of a computer claim 1 , a cell phone claim 1 , and a consumer device.4. The medical liquid delivery ...

System for cooling devices

A cooling system is provided. The cooling system includes an enclosure. The enclosure is defined by walls among which at least one is movable. The enclosure further includes at least one aperture on at least one wall. The system further includes an amplification element that is coupled with at least one walls of the enclosure. Further, the cooling system includes an actuation unit mechanically coupled with the amplification element. The actuation unit includes at least one actuation signal triggered actuator configured to cause a displacement the amplification element. In the cooling system, the amplification element is configured to amplify the actuator caused displacement through to the at least one wall of the enclosure such that fluid enters and exits the enclosure from the at least one aperture.

PATCH-SIZED FLUID DELIVERY SYSTEMS AND METHODS

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device. 1. A delivery device for delivering a fluidic infusion medium to a user , the device comprising:a housing portion comprising an adhesive pad adapted to be secured to a user;a reservoir located within the housing portion;a barrel supported by and located within the housing portion, the barrel fluidly connected to the reservoir via an upstream coupling, the barrel having an interior for containing the fluidic infusion medium and a plunger moveable within the interior of the barrel along an axial direction between an insertion position and a withdrawal position;an upstream, one-way valve fluidly coupled to the barrel via the upstream coupling and preventing fluid flow between the barrel and the reservoir;a return spring connected to the plunger;a dispensing assembly downstream from the barrel, the dispensing assembly comprising an acoustic volume sensing assembly;an downstream, one-way valve fluidly coupled to the barrel via a downstream coupling;an actuator arranged to operatively engage a plunger attachment cap to selectively move the plunger in the axial direction of the barrel; anda lever pivotable along a fulcrum, wherein a first end of the lever is operatively ...

PIEZOELECTRIC DRIVE APPARATUS FOR MOTOR AND METHOD FOR MANUFACTURING THE SAME, MOTOR, ROBOT, AND PUMP

A piezoelectric drive apparatus for a motor, the apparatus including a substrate having a longitudinal direction and a widthwise direction perpendicular to the longitudinal direction, a piezoelectric element provided on the substrate and having a first electrode, a second electrode, and a piezoelectric body positioned between the first electrode and the second electrode, and a contact section that is attached to a front end section of the substrate in the longitudinal direction thereof or in contact with the front end section of the substrate in the longitudinal direction thereof and comes into contact with a driven body, wherein the longitudinal direction of the substrate roughly coincides with a direction in which Young's modulus is minimized in a plane of the substrate. 1. A piezoelectric drive apparatus for a motor , the apparatus comprising:a substrate having a longitudinal direction and a widthwise direction perpendicular to the longitudinal direction;a piezoelectric element provided on the substrate and having a first electrode, a second electrode, and a piezoelectric body positioned between the first electrode and the second electrode; anda contact section that is attached to a front end section of the substrate in the longitudinal direction thereof or in contact with the front end section of the substrate in the longitudinal direction thereof and comes into contact with a driven body,wherein the longitudinal direction of the substrate roughly coincides with a direction in which Young's modulus is minimized in a plane of the substrate.2. A piezoelectric drive apparatus for a motor , the apparatus comprising:a substrate having a longitudinal direction and a widthwise direction perpendicular to the longitudinal direction;a piezoelectric element provided on the substrate and having a first electrode, a second electrode, and a piezoelectric body positioned between the first electrode and the second electrode; anda contact section that is attached to a front end ...

Piezoelectric driving device, motor, robot, and pump

A piezoelectric driving device includes: a substrate including a fixed portion, and a vibrating body portion which is provided with a piezoelectric element and is supported by the fixed portion; and a contact portion which comes into contact with a driven body, and transmits movement of the vibrating body portion to the driven body, the contact portion is provided at an end portion in the longitudinal direction of the vibrating body portion, and a difference between a distance between the end portion when the contact portion is not pressed against the driven body and a tip end of the contact portion, and a distance between the end portion when the contact portion is pressed against the driven body and the tip end, is smaller than a total amplitude in the longitudinal direction in a case where the vibrating body portion is driven.

LIQUID TRANSPORTING APPARATUS AND LIQUID TRANSPORTING METHOD

A liquid transporting apparatus includes a pump unit that transports a liquid, a battery housing unit that houses a battery supplying power for driving the pump unit; a driving unit that drives the pump, a control unit that controls the driving unit, and a temperature measuring unit that measures a temperature. The control unit controls driving of the pump unit by a first mode in which the pump unit is driven by a predetermined driving amount in unit time and a second mode in which the pump is driven by a driving amount that is smaller than the predetermined driving amount in unit time that is shorter than the unit time described above when the temperature measured by the temperature measuring unit is lower than a predetermined value. 1. A liquid transporting apparatus transporting a liquid , comprising:a pump unit that transports a liquid;a drive unit that drives the pump unit by being supplied power from a battery;a temperature measuring unit that measures a temperature; anda control unit that controls the drive unit by a control of a first mode or a control of a second mode based on the temperature,wherein the drive unit drives the pump unit by a predetermined driving amount per unit time as the control of the first mode, andwherein the drive unit drives the pump unit by a driving amount that is less than the predetermined driving amount per unit time shorter than the unit time as the control of the second mode if the temperature is lower than a predetermined value.2. The liquid transporting apparatus according to claim 1 , further comprising:a boosting circuit that boosts a voltage of power supplied to the drive unit.3. The liquid transporting apparatus according to claim 1 ,wherein the pump unit includes a tube, a plurality of fingers pressing the tube, a cam pressing the fingers,wherein in the control of the first mode, a skip drive is performed to skip a period in which a finger on the most downstream side in a transport direction of a liquid closes the tube ...

PUMPING FLUID DELIVERY SYSTEMS AND METHODS USING FORCE APPLICATION ASSEMBLY

A method of dispensing a therapeutic fluid from a line includes providing an inlet line connectable to an upstream fluid source. The inlet line is in downstream fluid communication with a pumping chamber. The pumping chamber has a pump outlet. The method also includes actuating a force application assembly so as to restrict retrograde flow of fluid through the inlet while pressurizing the pumping chamber to urge flow through the pump outlet. A corresponding system employs the method. 1. A system for pumping a medical fluid through a line in an infusion pump , the system comprising: an inlet in fluid connection with a fluid source; and', 'a pump outlet;, 'a pumping chamber in the infusion pump comprisingan inlet sealing member comprising a sealing spring positioned adjacent to an integral support; anda pump compressing member comprising a return spring positioned adjacent to a distal compressing member support;wherein during a compressive stroke the pump compressing member is driven towards the pumping chamber and the sealing spring transmits a driving force to the inlet sealing member via the integral support, andwherein the compressive stroke causes a restriction of retrograde flow of fluid from the pumping chamber through the inlet and causes an increase in pressure within the pumping chamber.2. A system according to claim 1 , further comprising an exit valve outside of the fluid line adapted to control fluid flow through the pump outlet.3. A system according to claim 2 , wherein the increase in pressure within the pumping chamber opens the exit valve and urges fluid from the pumping chamber to the pump outlet.4. A system according to claim 1 , further comprising a driving member that actuates both the inlet sealing member and the pump compressing member.5. A system according to claim 1 , further comprising a force application assembly comprising the inlet sealing member and the pump compressing member.6. A system according to claim 1 , further comprising a ...

Automatic E-Liquid Transportation System and Method of Electronic Cigarette as Well as Peristaltic Pump

The present disclosure relates to an automatic e-liquid transportation system and method of electronic cigarette as well as a peristaltic pump. The system comprises a peristaltic pump and a control system, wherein the control system comprises a temperature detector, a servo motor controller and a master controller; the temperature detector is used for detecting a real-time atomization temperature of a heating part of an atomizer and transmitting the real-time atomization temperature data to the master controller; the master controller determines an e-liquid feeding quantity or an e-liquid withdrawing quantity according to the real-time atomization temperature; when the real-time atomization temperature is determined to be greater than a preset temperature threshold, the servo motor controller controls a motor of the peristaltic pump to rotate in the forward direction in order to feed an e-liquid according to the e-liquid feeding quantity.

PIEZOELECTRIC CERAMIC AIR PUMP AND CONSTRUCTION METHOD THEREOF

A piezoelectric ceramic air pump comprises: a pump body, a piezoelectric ceramic crystal diaphragm, air inlet and output valves, the piezoelectric ceramic crystal diaphragm being co-central-axially mounted on the pump body to construct a working pump chamber for the piezoelectric ceramic air pump; wherein the pump body is approximately tubular, with the diameter being much greater than the axial length, air inlet and outlet ports configured to communicate the working pump chamber with an external air passage are arranged at a position of a peripheral wall of the pump body; an air inlet and outlet component respectively laminates the air inlet and outlet valves onto the air inlet and outlet ports, such that the air inlet and outlet holes are in communication with the air inlet and outlet valves and the air inlet and outlet ports to form air inlet and outlet passages in communication with the external air passage. 1. A piezoelectric ceramic air pump , comprising: a pump body , a piezoelectric ceramic crystal diaphragm , and air inlet and output valves , the piezoelectric ceramic crystal diaphragm being co-central-axially mounted on the pump body to construct a working pump chamber for the piezoelectric ceramic air pump; whereinthe pump body is approximately tubular, with the diameter being much greater than the axial length, and air inlet and outlet ports configured to communicate the working pump chamber with an external air passage are arranged at a position of a peripheral wall of the pump body;the air inlet and output valves are mounted at the position of the air inlet and outlet ports; andthe piezoelectric ceramic air pump further comprises an air inlet and outlet component configured to respectively laminate the air inlet and outlet valves onto the air inlet and outlet ports, such that the air inlet and outlet holes on the air inlet and outlet component are in communication with the air inlet and outlet valves and the air inlet and outlet ports to form air inlet ...

TUBE PUMP

Provided is a tube pump including: a housing unit that has an inner peripheral surface, which is formed in an arc shape around an axis, along which a tube with flexibility is disposed, and that is opened toward one end side along the axis; a pair of roller units that are accommodated in the housing unit and rotate about the axis in a state in which the tube is blocked; a pair of drive units that cause each of the pair of roller units to rotate about the axis in the same direction; and a cover member that is disposed in the housing unit such that the cover member covers the pair of roller units and provides an annular opening region into which the tube is able to be inserted toward the inner peripheral surface. 1. A tube pump comprising:a housing unit that has an inner peripheral surface, which is formed in an arc shape around an axis, along which a tube with flexibility is disposed, and that is opened toward one end side along the axis;a pair of roller units that are accommodated in the housing unit and rotate about the axis in a state in which the tube is blocked;a pair of drive units that cause each of the pair of roller units to rotate about the axis in the same direction; anda cover member that is disposed in the housing unit such that the cover member covers the pair of roller units and provides an annular opening region into which the tube is able to be inserted toward the inner peripheral surface.2. The tube pump according to claim 1 ,wherein the pair of roller units havea pair of rollers that come into contact with the tube,a pair of roller support members that are coupled to the pair of drive units and rotate about the axis while supporting the pair of rollers, anda pair of roller shafts, which have both end portions supported by the roller support members, to which the rollers are rotatably attached, andthe cover member is disposed in the housing unit such that the cover member covers the pair of roller shafts.3. The tube pump according to claim 1 , ...

PIEZOELECTRIC DRIVING DEVICE, MOTOR, ROBOT, AND PUMP

A piezoelectric driving device includes a vibrating plate, a first electrode, a piezoelectric layer, a second electrode layer provided above the vibrating plate. An active section is formed in a portion where the first electrode layer, the piezoelectric layer, and the second electrode layer overlap one another. The active section has a longitudinal direction and a latitudinal direction in plan view. At both ends in the latitudinal direction, ends of the first electrode layer are disposed in the same positions as ends of the wiring layer or further on the outer side than the ends, ends of the second electrode layer are disposed in the same positions as the ends of the wiring layer or further on the inner side than the ends, and the ends of the first electrode layer are disposed further on the outer side than the ends of the second electrode layer. 1. A piezoelectric driving device comprising:a vibrating plate;a first electrode layer provided above the vibrating plate;a piezoelectric layer provided above the first electrode layer;a second electrode layer provided above the piezoelectric layer;an insulating layer provided to cover upper surfaces of the first electrode layer, the piezoelectric layer, and the second electrode layer; anda wiring layer provided above the insulating layer, the wiring layer conducting with the second electrode layer, whereinan active section is formed in a portion where the first electrode layer, the piezoelectric layer, and the second electrode layer overlap one another,the active section has a longitudinal direction and a latitudinal direction in plan view, andat both ends in the latitudinal direction, ends of the first electrode layer are disposed in same positions as ends of the wiring layer or further on an outer side than the ends, ends of the second electrode layer are disposed in same positions as the ends of the wiring layer or further on an inner side than the ends, and the ends of the first electrode layer are disposed further on ...

APPARATUS AND METHODS FOR TREATING EXCESS INTRAOCULAR FLUID

An ocular drainage system is provided for treating diseases that produce elevated intraocular pressures, such as glaucoma, wherein the system includes an implantable device and an external control unit, the implantable device includes a non-invasively adjustable valve featuring at least one deformable tube and a disk rotatably mounted within a housing, such that rotation of the disk using the external control unit causes the disk to apply a selected amount of compression to the deformable tube, thereby adjusting the fluidic resistance of the deformable tube and regulating the intraocular pressure. 1. An ocular drainage system for the treatment of excess fluid within an eye , the system comprising:an implantable housing configured to be implanted in the eye, the implantable housing comprising a deformable tube and a magnetic disk disposed therein, the deformable tube having a flow area and a hydraulic resistance, the magnetic disk configured to selectively rotate along an arc to adjust a compressive force applied to the deformable tube, thereby adjusting the flow area and the hydraulic resistance; and a sensor configured to determine an angular orientation of the magnetic disk; and', 'a magnet configured to be moved from a first position in an arc over the implantable housing to a second position to cause the magnetic disk to rotate from a corresponding first stationary position along the arc to a corresponding second stationary position along the arc., 'an external control unit configured to non-invasively rotate the magnetic disk, the external control unit comprising2. The system of claim 1 , wherein the implantable housing is configured to be implanted under a scleral flap.3. The system of claim 1 , wherein the deformable tube is configured to be disposed within a groove of the implantable housing extending between an inlet and an outlet of the implantable housing.4. The system of claim 1 , wherein the magnetic disk is eccentrically mounting within the implantable ...

PERISTALTIC PUMP

A peristaltic pump having at least first, second, and third stages is provided. The peristaltic pump includes a plunger, inlet and outlet valves, a spring, and an actuator. The plunger actuates toward and away from a tube, the inlet valve is upstream of the plunger, the outlet valve is downstream of the plunger, the spring biases the plunger toward the tube, and the actuator mechanically engages and disengages from the plunger. In the first stage, the inlet valve is opened and the plunger is actuated from the tube, in the second stage, the inlet valve is closed, the plunger is actuated toward the tube, and the actuator is mechanically disengaged from the plunger, and in the third stage, the outlet valve is opened. In the third stage or in a fourth stage, the actuator actuates the plunger toward the tube to discharge fluid downstream past the outlet valve.

PATCH-SIZED FLUID DELIVERY SYSTEMS AND METHODS

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device. 1. A reservoir for a drug delivery device , the reservoir having a greatest depth , the reservoir comprising:a first rigid body having a first face and an opposing second face, the first face having a first face first region and a first face second region surrounded by the first face first region, the first face second region being recessed a variable depth with respect to the first face first region;a second body formed from flexible material, the second body having an attachment region operably coupled with the first face first region, the second body and the first face first region forming an interior volume of the reservoir, the interior volume configured to hold a medicament volume of medicament;an access port raised from the first rigid body, the access port being formed as a continuous part of the first rigid body; anda channel extending from a first opening in an exterior face of the access port through the access port to a second opening into the interior volume, the channel forming a straight line from the first opening in the exterior face of the access port extending along an axis of a portion of the channel, the channel passing through a wall before ...

PUMP FOR INJECTING A FLUID, AND IN PARTICULAR A MICROPUMP FOR USE DELIVERING A DETERMINED DOSE

A pump devoid of mobile mechanical parts and including a tank with a sleeve for dispensing fluid that remains fully open, but of which an inside capillary is too thin to allow for dispensing of fluid when idle. Recourse is therefore made to a resonator device with a piezoelectric exciter, that produces vibrations, in particular bending, of the sleeve to oblige the fluid to flow through it at a determined flow rate that depends on characteristics of the pump and of excitation. The assembly can be miniaturized and used as an implantable device, for example for treatment of hearing pathologies, to deliver a drug, or, in certain embodiments, also take samples of ambient fluid. A remote energy supply is possible. 126-. (canceled)27. A pump for injecting a fluid , comprising:a tank of fluid;a sleeve for flow of the fluid outside of the tank; anda device for controlling the flow, comprising a resonator configured to apply flexural ultrasound oscillations to the sleeve,wherein the resonator comprises a piezoelectric transducer and a piezoelectrically deformable solid that is subjected to an oscillation under effect of the transducer, the deformable solid thinning towards the sleeve.28. A pump for injecting a fluid according to claim 27 , wherein the sleeve constantly tapers as section from the tank to a free end.29. A pump for injecting a fluid according to claim 27 , wherein the piezoelectrically deformable solid is a ring surrounding the sleeve claim 27 , and the transducer is circular and divided into two sectors supplied by a same oscillating electric signal claim 27 , but in phase opposition.30. A pump for injecting a fluid according to claim 29 , wherein the ring is connected to the sleeve.31. A pump for injecting a fluid according to claim 30 , wherein the ring is connected to the sleeve by a tubular section surrounding the sleeve and extending from the ring towards a free end of the sleeve.32. A pump for injecting according to claim 27 , wherein the sleeve tapers ...

Patch-Sized Fluid Delivery Systems and Methods

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device. 1. A method for using a system , the system comprising an infusion medium container for holding an infusion medium , a plunger that is disposed at least partially within the infusion medium container , a reservoir , and a transfer guard , the plunger having a plunger body and a plunger septum , the plunger body allowing for forcing the infusion medium out of the infusion medium container , the plunger body configured to have an opening , the plunger septum capable of being pierced to allow the infusion medium to flow through the opening in the plunger body , the transfer guard having a transfer element , the method comprising:piercing the plunger septum with the transfer element of the transfer guard; andmoving the infusion medium container so as to cause the infusion medium to be transferred from the infusion medium container to the reservoir through the opening in the plunger body.2. The method of claim 1 , wherein the step of moving claim 1 , comprises: moving the infusion medium container to cause the plunger body to advance within the infusion medium container so as to force the infusion medium out of the infusion medium container through the opening in the ...

Centerless pump

The present disclosure may relate to a pump including a centerless rim, a first roller guide shaped to roll along the centerless rim such that as the first roller guide is rotated, friction between the first roller guide and the centerless rim causes a corresponding rotation of the centerless rim. The pump may also include a second roller guide shaped to roll along the centerless rim, and a plurality of peristaltic rollers coupled to the centerless rim. The pump may additionally include a tube housing disposed proximate the plurality of peristaltic rollers, and a tube disposed between the tube housing and the peristaltic rollers such that as the centerless rim is rotated, the peristaltic rollers compress the tube against the tube housing to create negative pressure within the tube.

CENTERLESS PUMP

The present disclosure may relate to a pump including a centerless rim, a first roller guide shaped to roll along the centerless rim such that as the first roller guide is rotated, friction between the first roller guide and the centerless rim causes a corresponding rotation of the centerless rim. The pump may also include a second roller guide shaped to roll along the centerless rim, and a plurality of peristaltic rollers coupled to the centerless rim. The pump may additionally include a tube housing disposed proximate the plurality of peristaltic rollers, and a tube disposed between the tube housing and the peristaltic rollers such that as the centerless rim is rotated, the peristaltic rollers compress the tube against the tube housing to create negative pressure within the tube. 125-. (canceled)26. A pump comprising:a first centerless rim;a first roller guide shaped to roll along the first centerless rim such that as the first roller guide is rotated, friction between the first roller guide and the first centerless rim causes a corresponding rotation of the first centerless rim;second and third roller guides shaped to roll along the first centerless rim;a plurality of peristaltic rollers coupled to the first centerless rim;a tube housing disposed proximate the plurality of peristaltic rollers;a tube disposed between the tube housing and the peristaltic rollers; anda reservoir coupled to the tube such that as the first centerless rim is rotated, the peristaltic rollers compress the tube against the tube housing to create negative pressure to pull material from the reservoir into the tube;a lever coupled to a second centerless rim;a fourth roller guide shaped to roll along the second centerless rim such that as the second centerless rim is rotated, friction between the fourth roller guide and the second centerless rim causes a corresponding rotation of the fourth roller guide, the fourth roller guide mechanically coupled to the first roller guide; andfifth and ...

LIQUID TRANSPORT DEVICE AND LIQUID TRANSPORT METHOD

A liquid transport device includes an elastic tube, fingers that line up along a transport direction, a drive mechanism that drives the fingers, a temperature sensor that measures the ambient temperature of the tube, and a control unit. The control unit controls the drive mechanism such that the finger on the most upstream side of the transport direction starts a closing operation of squeezing the tube after the finger on the most downstream side of the transport direction completes the closing operation of squeezing the tube, and the finger second from the downstream side completes an opening operation of being pressed back by the tube. The control unit controls the rate of driving of the drive mechanism in a corrective manner based on a result of measurement by the temperature sensor. The liquid transport device can transport a liquid with high accuracy regardless of the ambient temperature of the tube. 1. A liquid transport device comprising:a tube that has elasticity and is intended to transport a liquid in a transport direction;a plurality of fingers that is lined up along the transport direction;a drive mechanism that drives the plurality of fingers;a temperature sensor that measures the ambient temperature of the tube; anda control unit that controls the drive mechanism in a manner in which a liquid inside the tube is transported in the transport direction by repeating a closing operation of squeezing the tube with the finger and an opening operation in which the finger is pressed back by the shape of the squeezed tube being restored,wherein the control unitcontrols the drive mechanism in a manner in which the finger on the most upstream side of the transport direction starts the closing operation after the finger on the most downstream side of the transport direction completes the closing operation, and the finger that is second from the downstream side of the transport direction completes the opening operation, andcontrols the rate of driving of the drive ...

PUMP FOR OPERATION IN RADIOACTIVE ENVIRONMENT

A system for manufacturing radionuclide generators includes an enclosure defining a radioactive environment. The enclosure includes radiation shielding to prevent radiation within the radioactive environment from moving to an exterior of the enclosure. The system also includes a pump within the enclosure for transferring fluid through tubing. The pump includes a pump head including a casing, a rotor that rotates in relation to the casing, and a clamp. The tubing extends through the pump head. The clamp compresses the tubing against the rotor and directs radioactive fluid through the tubing as the rotor rotates. The pump also includes a servomotor that controls the rotation of the rotor and a coupling connecting the pump head to the servomotor. The coupling prevents backlash between the servomotor and the rotor during rotation. 1. A system for manufacturing radionuclide generators , the system comprising:an enclosure defining a radioactive environment, the enclosure including radiation shielding to prevent radiation within the radioactive environment from moving to an exterior of the enclosure; and a pump head including a casing, a rotor that rotates in relation to the casing, and a clamp, the tubing extending through the pump head, the clamp compressing the tubing against the rotor and directing radioactive fluid through the tubing as the rotor rotates;', 'a servomotor that controls the rotation of the rotor; and', 'a coupling connecting the pump head to the servomotor, wherein the coupling prevents backlash between the servomotor and the rotor during rotation., 'a pump within the enclosure for transferring fluid through tubing, the pump comprising2. The system of claim 1 , wherein the servomotor includes a resolver to generate signals relating to the rotation of the rotor.3. The system of claim 1 , wherein the pump further comprises cables connected to the servomotor claim 1 , the cables including polyurethane insulation to resist the effects of radiation.4. The ...

Patch-Sized Fluid Delivery Systems and Methods

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device. 1. A method of making a delivery device for delivering a fluidic medium to or from a patient , the method comprising:providing a first housing portion;providing a second housing portion configured to selectively engage with and disengage from the first housing portion;providing a reservoir in the first housing portion, the reservoir having a first interior volume for containing a fluid, the reservoir having an outlet connectable in fluid flow communication with the first interior volume and an injection site, the first interior volume of the reservoir being selectively variable;supporting a volume varying mechanism adjacent a boarder of the first interior volume for motion in a curved path to selectively vary the first interior volume of the reservoir, to selectively reduce the first interior volume and increase fluid pressure within the interior volume to drive fluid from the interior volume to the injection site; andsupporting a drive device on the second housing portion in a position to operatively connect to the volume varying mechanism when the first and second housing portions are engaged, to selectively drive the volume varying mechanism in the curved path ...

PUMP DEVICE

A pump device includes a piezoelectric pump, a piezoelectric pump, and a driving circuit. The piezoelectric pump is driven at a first frequency when singly driven. The piezoelectric pump is driven at a second frequency when singly driven. The driving circuit drives the piezoelectric pump and the piezoelectric pump at the same driving frequency. 1. A pump device comprising:a first piezoelectric pump driven at a first frequency when singly driven;a second piezoelectric pump driven at a second frequency when singly driven; anda driving circuit configured to drive the first piezoelectric pump and the second piezoelectric pump together at a driving frequency, the driving frequency being the same for the first piezoelectric pump and the second piezoelectric pump, wherein:the first piezoelectric pump and the second piezoelectric pump are electrically connected in parallel with each other and in series to the driving circuit, anda difference between the first frequency and the second frequency is less than a predetermined amount.2. The pump device according to claim 1 , wherein the driving frequency is equal to the first frequency claim 1 , the second frequency claim 1 , or a predetermined frequency between the first frequency and the second frequency.3. The pump device according to claim 1 , wherein the difference between the first frequency and the second frequency is ±5% of the first frequency.4. The pump device according to claim 1 , wherein:the first piezoelectric pump is configured to pump at a first maximum flow rate when driven at the first frequency, andthe second piezoelectric pump is configured to pump at a second maximum flow rate when driven at the second frequency.5. The pump device according to claim 1 , wherein the driving frequency is within a predetermined frequency range claim 1 , the predetermined frequency range comprising a frequency at which a maximum current flows through a parallel circuit that comprises the first piezoelectric pump and the second ...

MICROPUMP

Micropump () including a support structure (), a pump tube (), and an actuation system () comprising one or more pump chamber actuators (), the pump tube comprising a pump chamber portion () defining therein a pump chamber (), an inlet portion () for inflow of fluid into the pump chamber, and an outlet portion () for outflow of fluid from the pump chamber. The inlet, outlet and pump chamber portions form part of a continuous section of tube made of a supple material. The one or more pump chamber actuators are configured to bias against the pump chamber portion to expel liquid contained in the pump chamber via the outlet portion, respectively to bias away from the pump chamber portion to allow liquid to enter the pump chamber via the inlet portion. The pump chamber portion has a cross-sectional area Ap in an expanded state that is larger than a cross-sectional area Ai of the pump tube at the inlet and outlet portions. 1. Micropump including a support structure , a pump tube , and an actuation system comprising one or more pump chamber actuators , the pump tube comprising a pump chamber portion defining therein a pump chamber , an inlet portion for inflow of fluid into the pump chamber , and an outlet portion for outflow of fluid from the pump chamber , the inlet , outlet and pump chamber portions forming part of a continuous section of tube made of a supple material , the one or more pump chamber actuators configured to bias against the pump chamber portion to expel liquid contained in the pump chamber via the outlet portion , respectively to bias away from the pump chamber portion to allow liquid to enter the pump chamber via the inlet portion , wherein the pump chamber portion has a cross-sectional area Ain an expanded state that is larger than a cross-sectional area Aof the pump tube at the inlet and outlet portions.2. Micropump according to claim 1 , wherein the one or more pump chamber actuators comprise one or more tube coupling interface elements fixed to one ...

Fluid control device and sphygmomanometer

Provided are a fluid control device capable of operating a piezoelectric pump even in a case where a low discharge pressure or a slow pressurization speed is required and a sphygmomanometer including the fluid control device. A fluid control device includes a piezoelectric pump that includes a piezoelectric element, a self-excited circuit that performs, upon application of a driving power source voltage thereto, self-excited oscillation to drive the piezoelectric element, a switch that interrupts the driving power source voltage for the self-excited circuit, and a control circuit that changes an on duty ratio of the self-excited circuit by switching between states of the switch at a predetermined switching frequency and a predetermined on duty ratio.

LIQUID TRANSPORT DEVICE AND LIQUID TRANSPORT METHOD

A liquid transport device includes a drive mechanism having a rotor rotating when transporting a liquid, and a detection section adapted to detect a rotational angle of the rotor, and power of the detection section is switched between an ON state and an OFF state in sync with switching between drive and halt of the drive mechanism. Such a liquid transport device driven by the rotation of a cam or the rotor can reduce the power consumption of an encoder. 1. A liquid transport device , comprising:a drive mechanism having a rotor rotating when transporting a liquid; anda detection section adapted to detect a rotational angle of the rotor,wherein power of the detection section is switched between an ON state and an OFF state in sync with switching between drive and halt of the drive mechanism.2. The liquid transport device according to claim 1 , whereinthe detection section includes a light emitting section adapted to emit light, and a light receiving section adapted to receive the light emitted, andpower of the light emitting section is switched between the ON state and the OFF state in sync with switching between the ON state and the OFF state of power of the drive mechanism.3. The liquid transport device according to claim 2 , whereinthe detection section has an encoder circuit adapted to output an output signal having a predetermined level based on a detection value of a rotational angle of the rotor, andpower of the encoder circuit is switched between the ON state and the OFF state in sync with the switching between the ON state and the OFF state of the power of the drive mechanism.4. The liquid transport device according to claim 3 , whereinin starting drive of the drive mechanism, the power of the light emitting section is set to the ON state, and then the power of the encoder circuit is set to the ON state, andin stopping drive of the drive mechanism, the power of the encoder circuit is set to the OFF state, and then the power of the light emitting section is ...

Pumping Fluid Delivery Systems and Methods Using Force Application Assmebly

A method of dispensing a therapeutic fluid from a line includes providing an inlet line connectable to an upstream fluid source. The inlet line is in downstream fluid communication with a pumping chamber. The pumping chamber has a pump outlet. The method also includes actuating a force application assembly so as to restrict retrograde flow of fluid through the inlet while pressurizing the pumping chamber to urge flow through the pump outlet. A corresponding system employs the method. 1. A wearable infusion pump assembly comprising: a fluid reservoir; and', 'a fluid path from the reservoir, the fluid path defining a pump area, the pump area having a flexible membrane resiliently deformable into the fluid path;, 'a reservoir assembly having'} a pump, the pump contacting the pump area when the reservoir assembly and pump assembly are engaged whereby the pump flexes the flexible membrane; and', 'a pump controller for controlling the pump., 'a pump assembly releaseably engageable to the reservoir assembly, the pump assembly having'}2. The wearable infusion pump of wherein the reservoir assembly has a rigid body and the fluid path is defined by the flexible membrane and the rigid body opposite the flexible membrane to define the pump area of the fluid channel claim 1 , and wherein the flexible membrane has a first position where the flexible membrane and body are separated and a second position where the flexible membrane contacts the body claim 1 , the pump flexing the flexible membrane between the first position and the second position.3. The wearable infusion pump of wherein the pump comprises a pump actuator claim 1 , an inlet valve and an outlet valve claim 1 , wherein the inlet valve and outlet valve flex the flexible membrane to substantially close the fluid path.4. The wearable infusion pump of the outlet valve is biased to a first position to substantially close the fluid path and having a second position where the fluid path is substantially open claim 3 , ...

EXTRA-CAPILLARY FLUID CYCLING SYSTEM AND METHOD FOR A CELL CULTURE DEVICE

An extra-capillary fluid cycling unit for maintaining and cycling fluid volumes in a cell culture chamber includes a housing and a first flexible reservoir extra-capillary fluid reservoir disposed in the housing. The extra-capillary fluid reservoir is in fluid communication with a cell culture chamber. A second flexible reservoir is also located in the housing, the second flexible reservoir being in fluid communication with a pressure source. A sensor plate is movably disposed in the housing between the extra-capillary reservoir and the second reservoir, wherein the second reservoir is pressurized to move the sensor plate in relation to the extra-capillary reservoir to cause fluid cycling and maintain fluid volumes in the cell growth chamber. 1. A fluid cycling unit for maintaining and cycling fluid volumes in a chamber comprising:a housing;a first flexible fluid reservoir disposed in the housing, said first fluid reservoir being in fluid communication with a chamber;a second flexible reservoir located in said housing, said second flexible reservoir being in fluid communication with a pressure source; anda sensor plate movably disposed in said housing between said first and second reservoirs, wherein said second reservoir is pressurized to move said sensor plate in relation to said first reservoir to cause fluid cycling and maintain fluid volumes in said chamber.2. The fluid cycling unit of claim 1 , further comprising a sensor indicator connected to said sensor plate claim 1 , wherein physical expansion and contraction of said first reservoir moves said sensor indicator within the housing.3. The fluid cycling unit of claim 2 , further comprising a sensor in communication with said pressure source claim 2 , wherein said sensor indicator drives said sensor to expand or reduce the pressure within said second reservoir.4. The fluid cycling unit of claim 1 , wherein said chamber comprises a hollow fiber bioreactor that provides cell space and media component exchange.5. ...

PIEZOELECTRIC DRIVING DEVICE FOR MOTOR, MOTOR, ROBOT, AND PUMP

Provided is a piezoelectric driving device for a motor including: a vibrating plate which includes a fixed portion and a vibrator portion in which a piezoelectric element is provided and which is supported by the fixed portion; and a contact portion which comes into contact with a driven body and transmits motion of the vibrating plate to the driven body, in which the fixed portion, the vibrator portion, and the contact portion are provided along an X direction in this order, when seen in a Y direction, when two directions parallel to a main surface of the vibrating plate and orthogonal to each other are set as the X direction and the Y direction and a direction orthogonal to the main surface of the vibrating plate is set as a Z direction. 1. A piezoelectric driving device for a motor comprising:a vibrating plate which includes a fixed portion and a vibrator portion in which a piezoelectric element is provided and which is supported by the fixed portion; anda contact portion which comes into contact with a driven body and transmits motion of the vibrating plate to the driven body,wherein the fixed portion, the vibrator portion, and the contact portion are provided along an X direction in this order, when seen in a Y direction, when two directions parallel to a main surface of the vibrating plate and orthogonal to each other are set as the X direction and the Y direction and a direction orthogonal to the main surface of the vibrating plate is set as a Z direction.2. The piezoelectric driving device for a motor according to claim 1 ,wherein a terminal electrically connected to electrodes of the piezoelectric element is provided in the fixed portion.3. The piezoelectric driving device for a motor according to claim 1 ,wherein a plurality of piezoelectric elements are provided in the vibrator portion so as to generate longitudinal vibration in the X direction and bending vibration in the Y direction.4. The piezoelectric driving device for a motor according to claim 1 , ...

Adhesive and Peripheral Systems and Methods for Medical Devices

A repeater system may control a pump by using a repeater and a user interface. An adhesive patch system may be used for affixing a pump or other object to a human body. Such an adhesive patch system may include two sets of adhesive members, each member including an adhesive material on at least one side so as to attach to the body. The members of the first set are spaced to allow the members of the second set to attach to the body in spaces provided between the members of the first set, and the members of the second set are spaced to allow members of the first set to detach from the body without detaching the members of the second set. Also, fill stations and base stations are provided for personal pump systems. 1. A delivery device for delivery of infusion medium , the delivery device comprising:a reservoir for containing an infusion medium and having an outlet port;a fluid conduit connected in fluid flow communication with the outlet port of the reservoir; and a bridge comprising a cover for the infusion device and a cover for the sensor;', 'an infusion device introduction needle and a sensor introduction needle supported by the bridge for movement between a retracted position and an extended position;', 'an inserter housing for accommodating the bridge and for movement of the infusion device introduction needle and the sensor introduction needle between the retracted position and the extended position;', 'an infusion device about the infusion device introduction needle and moveable with the infusion device introduction needle between the retracted position and the extended position;', 'a sensor about the sensor introduction need and moveable with the sensor introduction needle between the retracted position and the extended position;', 'an infusion device release located on the bridge for releasing the infusion device in the extended position upon the infusion device introduction needle and infusion device being moved to the extended position; and', 'a sensor ...

LIQUID PUMPING DEVICE WITH SOLAR PANEL

There is described a pumping device for pumping liquids, in particular water, which comprises a pump connectable to a pumping tube which can be immersed in a liquid tank to remove liquid therefrom, and a delivery tube connectable to one or more irrigation devices, at least one rechargeable battery for supplying power to the pump and at least one solar panel for charging said rechargeable battery. A manual controller is interposed between the rechargeable battery and the pump for manually adjusting the liquid volume to be delivered and the liquid dispensing frequency. The manual controller comprises two rotary knobs and for adjusting the liquid volume delivered by the pump and the actuation frequency of the pump, respectively. 1. A pumping device for liquids , in particular water , which comprises a pump connectable to pumping tube which can be immersed in a liquid tank to remove liquid therefrom and a delivery tube connectable to one or more irrigation devices , at least one rechargeable battery for supplying power to the pump and at least one solar panel for charging said rechargeable battery , further comprising a manual controller interposed between the rechargeable battery and the pump for manually adjusting the liquid volume to be delivered and the liquid dispensing frequency , and a voltage regulator interposed between the solar panel and the rechargeable battery , wherein it comprises a Schottky diode interposed between the voltage regulator and the rechargeable battery.2. The device according to claim 1 , wherein said manual controller comprises a rotary knob for adjusting the liquid volume delivered by the pump and a knob for adjusting the actuation frequency of the pump. Pumping devices for liquids (in particular irrigation water) are known, which include a pump electrically powered by means of a solar panel.The power supply of the pump is entrusted to electric batteries which are charged in an adjustable manner by the electric energy generated by the ...

Automatically adjusting band system

Devices and methods for forming a restriction in a patient are disclosed. In one exemplary embodiment, a restriction system is provided including an implantable restriction device, an implantable port in fluid communication with the implantable restriction device, and an implantable pump in fluid communication with the restriction device. In general, the implantable restriction device is adjustable and configured to form a restriction in a patient, and the implantable port is configured to receive fluid from a fluid source external to the patient. The implantable pump has a plurality of actuators configured to change shape upon the application of energy thereto such that sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

Closed-loop piezoelectric pump

A closed-loop piezoelectric pump is disclosed for use in a fluid delivery system. The pump housing includes a movable diaphragm that defines a pumping chamber within the pump housing, the pumping chamber having an inlet for admitting fluid and an outlet for emitting fluid. A piezoelectric transducer is coupled to the moveable diaphragm and operates to produce a pumping action by varying the volume of the pumping chamber. The piezoelectric transducer may be used to generate an acoustic pressure pulse within the fluid delivery system and to sense reflections of the acoustic pressure pulse caused by impedance changes downstream of the pump. Properties of the fluid path downstream of pump may be determined from the characteristics of the sensed reflections.

Standing wave excitation cavity fluid pump

A pump includes an outer body; and a wall within said outer body. The outer body and the wall define a pumping cavity and an excitation cavity within the outer body. An excitable medium is contained within the excitation cavity. An excitation source is coupled to said excitable medium. This excitation source is operable to excite the excitable medium and create a standing wave therein. The standing wave acts through the wall to pump said fluid through said pumping cavity. Advantageously, the excitable medium is isolated from the pumped fluid by the wall.

Automatically adjusting intra-gastric satiation and satiety creation device

An implant for placement within a hollow body organ, the implant includes a distension device having an undeployed shape for delivery within a hollow body and one or more deployed shapes for implantation therein. The device has sufficient rigidity in its deployed shape to exert an outward force against an interior of the hollow body so as to bring together two substantially opposing surfaces of the hollow body. The implant further includes an implantable pump in fluid communication with the distension device and having a plurality of actuators configured to change the shape of the distension device upon the application of energy thereto such that sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

Peristaltic pump

The invention is a peristaltic pump having a particularly simple construction and a low axial bulk. The pump (1) includes a rotor (20) having rollers (21,22,23) which roll against a tube (14) containing the liquid to be pumped. The compression of the tube presses the rollers against the circular peripheral surface (35) of a central vibrating stator (32) in the form of a disc or ring, which guides the rollers and causes them to turn. The stator (32) is set in vibration by piezoelectric means and vibrates by extension in its radial plane following a progressive wave. The chassis (24) of the rotor is devoid of a central drive shaft. Such a peristaltic pump is notably useful in the medical domain, in machines to be worn by a patient or implanted in the body of a human being or animal.

Peristaltic pump

Automatically adjusting band system

Devices and methods for forming a restriction in a patient are disclosed. In one exemplary embodiment, a restriction system is provided including an implantable restriction device, an implantable port in fluid communication with the implantable restriction device, and an implantable pump in fluid communication with the restriction device. In general, the implantable restriction device is adjustable and configured to form a restriction in a patient, and the implantable port is configured to receive fluid from a fluid source external to the patient. The implantable pump has a plurality of actuators configured to change shape upon the application of energy thereto such that sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

Automatic adjustment band system

Devices and methods for forming a restriction in a patient are disclosed. In one exemplary embodiment, a restriction system is provided including an implantable restriction device, an implantable port in fluid communication with the implantable restriction device, and an implantable pump in fluid communication with the restriction device. In general, the implantable restriction device is adjustable and configured to form a restriction in a patient, and the implantable port is configured to receive fluid from a fluid source external to the patient. The implantable pump has a plurality of actuators configured to change shape upon the application of energy thereto such that sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

Automatically adjusting band system

Automatically regulated bandage system

FIELD: medicine. SUBSTANCE: invention relates to medicine. Limiting system for formation of limitation in patient contains implanted limiting device, which is regulates and is made with possibility of formation of limitation in patient; and implanted pump, which is connected with possibility of passing flowing medium with limiting device and has multitude of executive mechanisms, intended for change of shape when energy is supplied to them. Successive bringing into action multitude of executive mechanisms causes creation of force action for movement of flowing medium through pump. At least, one of executive mechanisms is made with possibility of prevention passage of flowing medium, when it is in a free state. EFFECT: providing possibility of selective regulation of flowing medium flow by allowing, preventing or limiting passage of flowing medium. 16 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 493 784 (13) C2 (51) МПК A61B 17/00 (2006.01) A61F 2/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009104685/14, 11.02.2009 (24) Дата начала отсчета срока действия патента: 11.02.2009 (56) Список документов, цитированных в отчете о поиске: US 2007265645 А1, 15.11.2007. US 2007025868 A1, 01.02.2007. US 2006189878 A1, 24.08.2006. RU 2255712 C1, 10.07.2005. 2 4 9 3 7 8 4 R U (54) АВТОМАТИЧЕСКИ РЕГУЛИРУЮЩАЯСЯ БАНДАЖНАЯ СИСТЕМА (57) Реферат: Изобретение относится к медицине. Ограничивающая система для образования ограничения в пациенте содержит имплантируемое ограничивающее устройство, которое является регулируемым и выполнено с возможностью образования ограничения в пациенте; и имплантируемый насос, соединенный с возможностью прохождения текучей среды с ограничивающим устройством и имеющий множество исполнительных механизмов, предназначенных для изменения формы при подаче к ним энергии. Последовательное приведение в действие множества исполнительных механизмов вызывает создание нагнетательного действия для ...

自动调节的束带系统

本发明公开了用于在患者体内形成限制的装置和方法，具体地涉及自动调节的束带系统。在一种示例性实施方式中，限制系统包括可植入限制装置、与所述可植入限制装置流体连通的可植入端口以及与所述限制装置流体连通的可植入泵。通常，可植入限制装置能被调节并且被构造成在患者体内形成限制，可植入端口被构造成接收来自患者体外的流体源的流体。可植入泵具有多个致动器，所述多个致动器被构造成在将能量施加到所述多个致动器上时改变形状，使得所述多个致动器的顺序激励有效地产生泵送作用以使流体通过所述泵。

restraint system to form a restraint on a patient

sistema de ajuste de faixa automaticamente. a presente invenção refere-se à descrição de dispositivos e métodos para formar uma restrição em um paciente. em uma modalidade exemplificativa, é proporcionado um sistema de restrição incluindo um dispositivo de restrição implantável, um orifício implantável em comunicação fluida com o dispositivo de restrição implantável, e uma bomba implantávei em comunicação fluida com o dispositivo de restrição. em geral, o dispositivo de restrição implantável é ajustável e configurado para formar uma restrição em um paciente, e o orifício implantável está configurado para receber fluido de uma fonte de fluido externa para o paciente. a bomba implantável é dotada de uma pluralidade de acionadores para mudar a forma durante a aplicação de energia nos mesmos de maneira que a ativação sequencial da pluralidade de acionadores seja eficaz para criar ação de bombeamento para mover fluido através da bomba. range adjustment system automatically. the present invention relates to the description of devices and methods for forming a restriction in a patient. in an exemplary embodiment, a restriction system is provided including an implantable restriction device, an implantable orifice in fluid communication with the implantable restriction device, and an implantable pump in fluid communication with the restriction device. in general, the implantable restriction device is adjustable and configured to form a restriction in a patient, and the implantable orifice is configured to receive fluid from a source of fluid external to the patient. the implantable pump is provided with a plurality of drivers to change shape during the application of energy thereto so that sequential activation of the plurality of drivers is effective to create pumping action to move fluid through the pump.

Automatically adjusting band system

Selp pumping and sensing hose utilizing electroactive polymer strips

One or more electroactive polymer (EAP) strips (20, 54) are circumferentially or lengthwise embedded or mounted around the fluid passage member (20, 52). The EAP strips are configured to function as a pump when a prescribed electrical charge is applied and removed from the EAP strips, which causes the EAP strips to expand and constrict accordingly. A series of these strips may be mounted along a portion of the fluid passage member and electrically actuated in a prescribed manner to exert a squeezing force around the fluid passage member, which functions to pump fluid through the fluid passage member. The EAP strips also change electrical characteristics (e.g., capacitance, resistance) independent of the applied actuation as they are stretched, so they may be used to measure fluid pressure and/or fluid flow rate.

Electroactive polymer-based pump

Methods and devices for pumping fluid are disclosed herein. In one exemplary embodiment, a pump is provided having a first member with a passageway formed therethrough, and a plurality of electrically expandable actuators in communication with the first member and adapted to change shape upon the application of energy thereto such that sequential activation of the activators can create a pumping action to move fluid through the first member.

Electroactive polymer-actuated peristaltic pump and medical lead incorporating such a pump

A peristaltic pump for conveying a fluid comprises a flexible tube having an outer surface and a lumen for carrying the fluid such as a therapeutic agent. The tube has a length defined by opposed ends of the tube, the outer surface of the body carrying a plurality of longitudinally spaced-apart electroactive polymer actuators. The plurality of actuators are adapted to be responsive to electrical signals for energizing the actuators sequentially along the length of the tube to move a lumen pinch-off along the length of the tube to thereby convey the fluid from one end of the tube to the other end by means of a peristaltic pumping action. The peristaltic pump may be incorporated into a medical lead, such as an endocardial pacing lead, carrying at least one electrode.

range adjustment system automatically

A presente invenção refere-se à descrição de dispositivos e métodos para formar uma restrição em um paciente. Em uma modalidade exemplificativa, é proporcionado um sistema de restrição incluindo um dispositivo de restrição implantável, um orifício implantável em comunicação fluida com o dispositivo de restrição implantável, e uma bomba implantávei em comunicação fluida com o dispositivo de restrição. Em geral, o dispositivo de restrição implantável é ajustável e configurado para formar uma restrição em um paciente, e o orifício implantável está configurado para receber fluido de uma fonte de fluido externa para o paciente. A bomba implantável é dotada de uma pluralidade de acionadores para mudar a forma durante a aplicação de energia nos mesmos de maneira que a ativação sequencial da pluralidade de acionadores seja eficaz para criar ação de bombeamento para mover fluido através da bomba. The present invention relates to the description of devices and methods for forming a restriction in a patient. In an exemplary embodiment, a restraint system is provided including an implantable restraint device, an implantable hole in fluid communication with the implantable restraint device, and an implantable pump in fluid communication with the restraint device. In general, the implantable restraint device is adjustable and configured to form a constraint on a patient, and the implantable port is configured to receive fluid from an external fluid source to the patient. The implantable pump is provided with a plurality of actuators to change shape during energy application therein so that sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

Automatically adjusting band system

Devices and methods for forming a restriction in a patient are disclosed. In one exemplary embodiment, a restriction system is provided including an implantable restriction device, an implantable port in fluid communication with the implantable restriction device, and an implantable pump in fluid communication with the restriction device. In general, the implantable restriction device is adjustable and configured to form a restriction in a patient, and the implantable port is configured to receive fluid from a fluid source external to the patient. The implantable pump has a plurality of actuators configured to change shape upon the application of energy thereto such that sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

Automatically adjusting band system

Devices and methods for forming a restriction in a patient are disclosed. In one exemplary embodiment, a restriction system is provided including an implantable restriction device, an implantable port in fluid communication with the implantable restriction device, and an implantable pump in fluid communication with the restriction device. In general, the implantable restriction device is adjustable and configured to form a restriction in a patient, and the implantable port is configured to receive fluid from a fluid source external to the patient. The implantable pump has a plurality of actuators configured to change shape upon the application of energy thereto such that sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

RESTRICTION SYSTEM TO FORM A RESTRICTION ON A PATIENT

sistema de ajuste de faixa automaticamente. a presente invenção refere-se à descrição de dispositivos e métodos para formar uma restrição em um paciente. em uma modalidade exemplificativa, é proporcionado um sistema de restrição incluindo um dispositivo de restrição implantável, um orifício implantável em comunicação fluida com o dispositivo de restrição implantável, e uma bomba implantávei em comunicação fluida com o dispositivo de restrição. em geral, o dispositivo de restrição implantável é ajustável e configurado para formar uma restrição em um paciente, e o orifício implantável está configurado para receber fluido de uma fonte de fluido externa para o paciente. a bomba implantável é dotada de uma pluralidade de acionadores para mudar a forma durante a aplicação de energia nos mesmos de maneira que a ativação sequencial da pluralidade de acionadores seja eficaz para criar ação de bombeamento para mover fluido através da bomba. range adjustment system automatically. the present invention relates to the description of devices and methods for forming a restriction in a patient. in an exemplary embodiment, a restraint system is provided including an implantable restraint device, an implantable orifice in fluid communication with the implantable restraint, and an implantable pump in fluid communication with the restraint device. in general, the implantable restriction device is adjustable and configured to form a restriction on a patient, and the implantable orifice is configured to receive fluid from an external fluid source for the patient. the implantable pump is provided with a plurality of actuators to change the shape during the application of energy in them so that the sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

Automatically adjusting intra-gastric satiation and satiety creation device

An implant for placement within a hollow body organ, the implant includes a distension device (20) having an undeployed shape for delivery within a hollow body and one or more deployed shapes for implantation therein. The device has sufficient rigidity in its deployed shape to exert an outward force against an interior of the hollow body so as to bring together two substantially opposing surfaces of the hollow body. The implant further includes an implantable pump (110) in fluid communication with the distension device and having a plurality of actuators (122) configured to change the shape of the distension device upon the application of energy thereto such that sequential activation of the plurality of actuators is effective to create pumping action to move fluid through the pump.

Peristaltic device i.e. peristaltic pump, has electrodes arranged on foil in flat or structured manner, where foil comprises dielectric elastomer and is molded and/or rolled into tube in which inner shell is provided

The device (1) has electrodes (3) arranged on a foil (2), in a flat or structured manner. The foil comprises a dielectric elastomer and is molded and/or rolled into a tube (50). The foil has a thickness ranging from 5 to 50 micrometers and elongates from 5 to 45 percentage. The foil partially comprises acrylate and/or silicone. A pin, a pipe and an inner shell are provided inside the tube and run in an axial direction (100) of the tube. An outer shell surrounds the tube in a radial direction. Independent claims are also included for the following: (1) a method for operating a peristaltic device (2) a method for manufacturing a peristaltic device.

Tubular pump

ポンプ

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

輸液ポンプ

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Fluid transport device

Adhesive and peripheral systems and methods for medical devices

Fill stations and base stations are provided for personal pump systems. The fill stations may be opened and closed to accept a reservoir and to allow fluid to be introduced into the reservoir for use with personal pump systems. The fill stations may hold the reservoir at a tilt relative to an underlying surface and may discourage overfilling of the reservoir. The filling stations may also include viewing windows having fluid lines marked thereon for indicating volume of fluid within the reservoir.

Infusion pump assembly

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.

Artificial blood pump means

Adhesive and peripheral systems and methods for medical devices

A repeater system may control a pump by using a repeater and a user interface. An adhesive patch system may be used for affixing a pump or other object to a human body. Such an adhesive patch system may include two sets of adhesive members, each member including an adhesive material on at least one side so as to attach to the body. The members of the first set are spaced to allow the members of the second set to attach to the body in spaces provided between the members of the first set, and the members of the second set are spaced to allow members of the first set to detach from the body without detaching the members of the second set. Also, fill stations and base stations are provided for personal pump systems.

Adhesive and peripheral systems and methods for medical devices

A repeater system may control a pump by using a repeater and a user interface. An adhesive patch system may be used for affixing a pump or other object to a human body. Such an adhesive patch system may include two sets of adhesive members, each member including an adhesive material on at least one side so as to attach to the body. The members of the first set are spaced to allow the members of the second set to attach to the body in spaces provided between the members of the first set, and the members of the second set are spaced to allow members of the first set to detach from the body without detaching the members of the second set. Also, fill stations and base stations are provided for personal pump systems.

Adhesive and peripheral systems and methods for medical devices

A repeater system may control a pump by using a repeater and a user interface. An adhesive patch system may be used for affixing a pump or other object to a human body. Such an adhesive patch system may include two sets of adhesive members, each member including an adhesive material on at least one side so as to attach to the body. The members of the first set are spaced to allow the members of the second set to attach to the body in spaces provided between the members of the first set, and the members of the second set are spaced to allow members of the first set to detach from the body without detaching the members of the second set. Also, fill stations and base stations are provided for personal pump systems.

Pumping fluid delivery systems and methods using force application assembly

A method of dispensing a therapeutic fluid from a line includes providing an inlet line connectable to an upstream fluid source. The inlet line is in downstream fluid communication with a pumping chamber. The pumping chamber has a pump outlet. The method also includes actuating a force application assembly so as to restrict retrograde flow of fluid through the inlet while pressurizing the pumping chamber to urge flow through the pump outlet. A corresponding system employs the method.

Fluid delivery systems and methods

A method of dispensing fluid includes three processes. A first one of these processes includes pumping fluid into a resilient variable-volume dispensing chamber. The dispensing chamber is in series with a normally present finite fluid impedance and an output. The impedance is sufficient so as to cause expansion of the dispensing chamber as it receives pumped fluid even while some fluid flows through the output. Another one of these processes includes repeatedly measuring a parameter related to volume of the dispensing chamber over time. A third one of these processes includes controlling the pumping of fluid based on repeated measurements of the parameter to produce a desired fluid flow through the output. A corresponding system for dispensing fluid implements these processes.

Patch-sized fluid delivery systems and methods

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.

Patch-sized fluid delivery systems and methods

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.

Adhesive and peripheral systems and methods for medical devices

A repeater system may control a pump by using a repeater and a user interface. An adhesive patch system may be used for affixing a pump or other object to a human body. Such an adhesive patch system may include two sets of adhesive members, each member including an adhesive material on at least one side so as to attach to the body. The members of the first set are spaced to allow the members of the second set to attach to the body in spaces provided between the members of the first set, and the members of the second set are spaced to allow members of the first set to detach from the body without detaching the members of the second set. Also, fill stations and base stations are provided for personal pump systems.

Volumetric flow equalizing drive control wheel

A rotation control for a device to be rotated includes a variable speed DC motor having a constant rotational speed upon receiving a selected fixed voltage electrical input power from an adjustable electrical input power supply connected to the motor for supplying the selected fixed voltage. A switch circuit is connected between the motor and the power supply activatable in response to a first electrical signal to turn the motor "on" and activatable in response to a second electrical signal to turn the motor "off". A selectable frequency, regular interval electrical signal device is connected to the switch circuit to provide electrical signals to activate the switch circuit to turn the motor "on" at regular intervals. An encoder wheel is coupled to the device to be rotated and to the motor for rotation of the timing disk at a speed proportional to the constant rotational speed of the motor. The timing disk has a plurality of openings around the disk with predetermined spacing there between. The spacing corresponds to a desired amount of device rotation. A light sensor is operatively positioned adjacent to the encoder wheel for detecting the spaced openings and connected to the switch circuit to provide the electrical signal to turn the motor off each time a next one of the openings is detected by the sensor thereby allowing the device to traverse the desired amount of device rotation during each regular interval that the motor is turned on.

Curvilinear peristaltic pump

A curvilinear peristaltic pump for facilitating the pumping of a liquid through a length of resilient tubing. The pump comprises a housing having a platen member attached thereto and a rotatable cam disposed therewithin. Also disposed within the housing is a drive unit of the pump which is mechanically coupled to the cam such that the activation of the drive unit results in the concurrent rotation of the cam in a first direction and the deactivation of the drive unit maintains the cam in a set position. Movably attached to the housing are a plurality of pump fingers of the pump, each of which has a first end which is cooperatively engaged to the cam and a second end which is disposed in spaced relation to the platen member. The cam is configured to sequentially move the pump fingers radially outwardly toward and inwardly away from the platen member when rotated in the first direction by the drive unit. A portion of the tubing may be extended between the platen member and the second ends of the pump fingers such that the sequential movement of the pump fingers toward and away from the platen member results in liquid within the tubing being pumped in the first direction of rotation of the cam. The pump is used in conjunction with a disposable tubing assembly which is provided with a shut-off valve to selectively obstruct the flow of liquid through the tubing assembly.

Dosing pump