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| Number | Title | Issue Date |
| 7985057 | Micropump for peristaltic pumping of a liquid medium The invention relates to a micropump for peristaltic pumping of a liquid medium and to a device which contains a peristaltic micropump and which is for metered administration of a liquid drug. ... | 07/26/2011 |
| 7360999 | Means for using single force sensor to supply all necessary information for determination of status of medical pump A medical pump, for use with a cassette having a pumping chamber, includes a pumping element with a piston slider assembly which intermittently pressurizes the pumping chamber during a pumping cycle and has a piston head connected to a main body with a single pressu... | 04/22/2008 |
| 7354190 | Two-stage mixing system, apparatus, and method A two-stage mixing system, apparatus, and method produces a solution including a first substance and a second substance in a predetermined ratio by first mixing the first substance with a first liquid to produce a first solution and then mixing the first solution wi... | 04/08/2008 |
| 7335334 | Active air removal from an extracorporeal blood circuit A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous... | 02/26/2008 |
| 7322491 | Method of using one-way valve and related apparatus An apparatus has a valve body defining a first passageway, a valve seat, and a flow aperture extending through the valve body and coupled in fluid communication with the first passageway. A valve cover of the apparatus is formed of an elastic material and includes a... | 01/29/2008 |
| 7278553 | One-way valve and apparatus using the valve An apparatus has a valve body defining a first passageway, a valve seat, and a flow aperture extending through the valve body and coupled in fluid communication with the first passageway. An elastic valve cover includes a valve portion overlying the valve seat, form... | 10/09/2007 |
| 7278981 | Disposable cartridge for a blood perfusion system A disposable cartridge for use in extracorporeal blood perfusions systems that have a control unit for controlling the flow of fluids. The cartridge has a housing defining a plurality of internal passageways that connect to a cardiopulmonary circuit, a cardioplegia ... | 10/09/2007 |
| 7261525 | Outlet check valve for fluid bladders A manually operated pump having a pump assembly and a check valve. The pump assembly includes a dome with a fluid inlet. A support plate is sealed to the dome to define a fluid chamber. The support plate includes a fluid outlet. A foam material is positioned in the ... | 08/28/2007 |
| 7238165 | Fluid pump A pumping system 10 provides a physiological pulsatile flow and includes controller 121, a pump drive head 50 coupled to a motor 12 and a fluid housing 52 having at least one port 60. The port 60 includes a ball valve... | 07/03/2007 |
| 7222803 | Liquid dispensing apparatus A hand operated flexible bulb for use with a liquid dipensing apparatus 5, the bulb comprises an open ended neck 2 which is securable in an air tight manner to a liquid dispensing apparatus. The flexible bulb is provided with an air inlet 6 sepa... | 05/29/2007 |
| 7214210 | Cassette and method for drug preparation and delivery A disposable cassette for mixing an intravenous drug in a vial to a patient includes a liquid inlet for connection to a liquid supply, a first vial spike, a second vial spike and a chamber. The chamber, the first and second vial spikes, and the liquid inlet are in f... | 05/08/2007 |
| 7204958 | Extracorporeal blood circuit air removal system and method A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a blood ... | 04/17/2007 |
| 7201870 | Active air removal system operating modes of an extracorporeal blood circuit A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous... | 04/10/2007 |
| 7198751 | Disposable, integrated, extracorporeal blood circuit A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous... | 04/03/2007 |
| 7195607 | Programmable, fluid pressure actuated blood processing systems and methods Programmable, fluid pressure actuated blood processing systems and methods are used in association a blood separation device. The systems and methods employ a cassette, which contains several preformed, pneumatically actuated pump stations, several preformed fluid f... | 03/27/2007 |
| 7189352 | Extracorporeal blood circuit priming system and method A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous... | 03/13/2007 |
| 7146660 | Patient support pad with repositionable pressure source An apparatus for supporting a patient includes a pad having a first side, a second side, and a fluid chamber configured to receive fluid under pressure. The apparatus also has a pressure source operable to deliver pressurized fluid to the fluid chamber and a pouch c... | 12/12/2006 |
| 7059840 | Energy-saving, anti-free flow portable pump for use with standard PVC IV tubing An apparatus for pumping fluid through tubing comprising a stop platen is disclosed. The stop platen is operatively arranged to depress a wall of the tubing along a section of a longitudinal axis of the tubing. The stop platen is narrower than the tubing along a tra... | 06/13/2006 |
| 7029245 | Blood pumping unit, with a coplanar disk inlet valve and an annular outlet valve A unit for pumping fluid, particularly blood, is provided with an enclosure that has two half-shells and an elastic membrane fixed perimetrically to the enclosure in order to divide its space into two parts. One of the half-shells is provided with valves that are lo... | 04/18/2006 |
| 7004727 | Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use Blood component processing systems and methods are coupled to a blood component processing device. The systems and methods include a fluid circuit that comprises at least one fluid pressure actuated pump station, at least one fluid flow path communicating with the p... | 02/28/2006 |
| 7001156 | Structure of an air inflation device An improved structure of an air inflation device is disclosed. External air is drawn to the motor and cylinder to provide rapid cooling so that the efficiency of the motor is maintained. In the present invention, a plurality of air filters is used to filter air. The... | 02/21/2006 |
| 6949079 | Programmable, fluid pressure actuated blood processing systems and methods Programmable, fluid pressure actuated blood processing systems and methods are used in association a blood separation device. The systems and methods employ a cassette, which contains several preformed, pneumatically actuated pump stations, several preformed fluid f... | 09/27/2005 |
| 6942469 | Solenoid cassette pump with servo controlled volume detection Servo controlled solenoids provide actuation of a pump piston and valves, and electronic LC resonance measurements to determine liquid volume and gas bubble volume. Third order nonlinear servo control is split into nested control loops: a fast nonlinear first-order ... | 09/13/2005 |
| 6912748 | Self inflating pneumatic seat cushion apparatus and method A self inflating pneumatic seat cushion, especially for automobile seats, has foam filled bladders and bolsters. A pneumatic pumping chamber intakes air through an inlet and distributes air to the cushion bladders and bolsters through outlet tubes. The motion of a s... | 07/05/2005 |
| 6905314 | Pump having flexible liner and compounding apparatus having such a pump A pump has a flexible liner which is expanded and contracted by application of positive and negative fluid pressure for receiving and discharging fluent material. The liner is received in a rigid shell which defines the maximum volume received. In discharging fluent... | 06/14/2005 |
| 6797063 | Dispensing apparatus Described are dispensing apparatuses and methods of their use, the dispensing apparatuses having one or more process chamber inside of a control chamber, and the volume of the process chamber increases or decreases by adding or removing control fluid from the contro... | 09/28/2004 |
| 6729856 | Electrostatically actuated pump with elastic restoring forces An apparatus for electrostatically pumping fluids without passing the fluids through the electric field of the pump is contemplated. Electrostatic forces are preferably used to move the diaphragms in one direction, while elastic and/or other restorative forces are u... | 05/04/2004 |
| 6689503 | Fuel cell with uniform compression device This invention is related to a fuel cell, comprising: a fuel cell stack; two end plates provided at the longitudinal, opposing ends of the cell stack; a plurality of tie rods, passing through a peripheral region of each end plate for positioning the cell ... | 02/10/2004 |
| 6685444 | Fluid discharging device with a reciprocating pump member defining an outlet valve, and a valve member defining an outlet and suction valve A fluid discharging device is provided with diaphragm members 20 and 30. The diaphragm member 30 being a valve member comprises an outlet 35 and a suction passage opening and closing portion 33, and can be moved forward and backward relative to the diaphr... | 02/03/2004 |
| 6666665 | Fluid delivery mechanism having a plurality of plungers for compressing a metering chamber The present invention provides an infusion pump 10 for providing a flow of a liquid through an tube 28. The infusion pump 10 includes at least two occluders 152, 162 having an open position and a closed position for releasably pinching-off the tube 28. A ... | 12/23/2003 |
| 6612819 | Pumping device A pumping device for drawing in and delivering a liquid to a liquid dispensing device of a hair removing apparatus the pumping device includes a pump inlet and a pump outlet and a pumping element. The pumping device is formed by a first and a second housi... | 09/02/2003 |
| 6585499 | Fluid delivery mechanism having a flush-back operation The present invention provides an infusion pump 10 for providing a flow of a liquid through an tube 28. The infusion pump 10 includes at least two occluders 152, 162 having an open position and a closed position for releasably pinching-off the tube 28. A ... | 07/01/2003 |
| 6494694 | Disposable infusion cassette with low air bubble retention and improved valves A disposable cassette for use with a medical infusion pump. An elastomeric membrane is captured between a facing member and a base of the cassette and is displaced into a pumping chamber. The elastomeric membrane includes a generally T-shaped lip, and cor... | 12/17/2002 |
| 6481984 | Pump and method of driving the same A pump comprises a first substrate having a fluid inlet port for receiving a fluid, a fluid outlet port for discharging the fluid, a first pumping section for pumping the fluid from the fluid inlet port to the fluid outlet port, a first inlet valve sectio... | 11/19/2002 |
| 6461125 | Air pump, air chamber device using air pump, and wristwatch having air chamber device An air chamber device has an air pump having a first air discharge valve, an air chamber connected to the air pump for receiving air discharged by the first air discharge valve, and a second air discharge valve for discharging air from the air chamber. Th... | 10/08/2002 |
| 6450773 | Piezoelectric vacuum pump and method A piezoelectric vacuum pump that includes a diaphragm comprising an upper diaphragm member and a lower diaphragm member. The diaphragm members preferably comprise thin metal sheets that are plated with a noble metal, such as gold, silver, or platinum, and... | 09/17/2002 |
| 6213723 | Volumetric infusion pump A medical infusion pump is disclosed which provides for greatly improved accuracy in the delivery of medicaments to a patient. Among the various features included in the instant invention is a pumping body which serves to deform and reform a tube so as to... | 04/10/2001 |
| 6173959 | Diaphragm-holding synthetic resin assembly An O-ring shaped annular rib (63) is disposed around the outer periphery of a flexible diaphragm member (62), and grooves (70, 71) are formed in first and second resin members (60, 61) for receiving the annular rib (63) in the compressed state. A hollow s... | 01/16/2001 |
| 6146109 | Infusion device with disposable elements An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, w... | 11/14/2000 |
| 6092695 | Interchangeable liquid dispensing cartridge pump A liquid dispensing cartridge pump suitable for dispensing reagent in an automatic system includes a compressible metering chamber suspended from a reservoir bag mounted within a rigid housing. Check valves between the reservoir and metering chamber and a... | 07/25/2000 |
