Matches 1 - 50 out of 173 1 2 3 4 >
Match Document Document Title
7566209 Peristaltic pump with field generator  
A peristaltic pump assembly for moving a working fluid. The pump assembly includes an expandable fluid that changes in volume due to the presence of a magnetic and/or electric field. The pump...
7544048 Universal vibratory pump  
A vibratory pumping machine including a pumping chamber disposed within a housing for the machine having an inlet tube that is insertable into a container having a liquid therein to withdraw the...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
RE37074 Pumping device having inlet and outlet valves adjacent opposed sides of a tube deforming device  
A pumping device controlling an amount of liquid passing through a length of tubing accommodated in the pumping device. The pumping device includes inlet and outlet valves located adjacent opposed...
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...
6056522 Reusable cassette with a moveable door  
A cassette for use with a pump control module includes a top surface configured for receipt of a tube and an access door. A method for using a pump control module includes mounting a cassette...
6024545 Tube-pump  
A tube-pump of the invention comprising; an elastic-tube disposed in a ring-shaped form along the inner surface of a cylindrical chamber, a ring-shaped pressure member driven by an eccentric cam...
5842841 Volumetric infusion pump with transverse tube loader  
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...
5816779 Disposable fluid infusion pumping cassette having an interrelated flow control and pressure monitoring arrangement  
A disposable pumping cassette having an integral auxiliary flow control and pressure monitoring member is used for delivering a medicinal fluid to a patient. The pumping cassette includes an...
5718569 Dual plunger cassette pump  
An IV pump actuates a disposable cassette having two parallel fluid paths that include first and second pumping chambers. The disposable cassette (12) has a housing(14) that includes a back portion...
5718567 Micro diaphragm pump  
In a micro diaphragm pump which has a pump body consisting of two parts, one part including two valve chambers with a pump chamber disposed therebetween and in communication with the valve chambers...
5674052 Pinch pump having selectable pressure plate sizes and a flexible tube with attachment ribs  
Pumping apparatus for dispensing or otherwise metering precise and minute volumes (measured in microliters) of fluid (e.g. human blood) from a flexible conduit containing such fluid. According to a...
5658133 Pump chamber back pressure dissipation apparatus and method  
A medical infusion pump (10) for delivering liquids to a patient includes an elastomeric pump chamber (140) contractable between a refill position and a discharge position. An inlet valve (122) is...
5630710 Ambulatory infusion pump  
A remotely programmable infusion system for administering liquid to a patient includes an infusion pump unit having a pump for infusing liquids operated by means of a control including a programmed...
5599173 Blood pump system  
A pump system is described which is particularly suited for use as a left ventricular assist device for internal use in humans. The pump system generally includes a pump having a deformable sac...
5593290 Micro dispensing positive displacement pump  
A multiple-chamber pump (10, 52, 78) for dispensing precise volumes of fluids. The pump is especially suited for dispensing volumes in the microliter range. At least three chambers (18, 20, 22)...
5588816 Disposable cassette for cardioplegia delivery system  
A disposable cassette for a cardioplegia system for delivering cardioplegic solution to the heart during open heart surgery in cooperation with an extracorporeal blood circuit employing a...
5586868 Method of delivering liquid to a patient via a disposable pumping cassette having a flow control & pressure monitoring member  
A disposable pumping cassette having an integral auxiliary flow control and pressure monitoring member is used for delivering a medicinal fluid to a patient. The pumping cassette includes an...
5554013 Disposable cassette with negative head height fluid supply  
A fluid infusion pump includes a disposable cassette having an inlet, an outlet, and a fluid chamber between the inlet and the outlet. There is a fixed wall of the fluid chamber and a movable wall...
5551850 Pump chamber and valve assembly  
A medical infusion pump (10) using a pump chamber cassette (86) has a housing (20,22) defining a pump chamber cassette receptacle (84) and a pump driving mechanism (250) for propelling liquid...
5462256 Push button flow stop useable with a disposable infusion pumping chamber cassette  
A push button flow stop is mounted on a disposable infusion pumping cassette provided for use with a drug infusion pump. The flow stop is operative to enable or to block fluid flow through the...
5460490 Multi-purpose irrigation/aspiration pump system  
An irrigation/aspiration pump system capable of operating in a plurality of different modes suitable for a variety of different endoscopic surgical procedures. The irrigation/aspiration pump system...
5441392 Apparatus for repetitively dispensing a measured volume of liquid  
An apparatus for delivering measured liquid volumes comprising a dosing piston pump having an outlet for the measured liquid volumes, and a liquid accumulating device including an accumulator...
5431634 Ambulatory pump  
A pump 10 for delivering a precise selected output volume has a rigid pump housing 12. A diaphragm 16 is in fluid right abutment with the pump housing 12 to define a pump chamber 40 therebetween....
5429485 Plural inlet pumping cassette with integral manifold  
An integral disposable manifold and pump cassette, through which fluid is pumped from inlet tubes, forms a single disposable cassette which may be inserted into a single pump housing. The integral...
5405252 Metering pump  
A metering pump for use on a printing press has a pumping chamber formed between a rigid support plate and a flexible diaphragm. A piston acts through the diaphragm to vary the volume of the...
5378126 Diaphragm cassette for solution pumping system  
A solution pumping system including a disposable pump cassette is disclosed, with the system configured for efficient and accurate preparation of parenteral admixture solutions. The system includes...
5351710 Inflation mechanism for inflatable article of manufacture  
The present invention is an inflatable article of manufacture having inflation and fluid release mechanisms. The inflation mechanism generally comprises a pump and a resilient fluid intake valve....
5320504 Flap valve arrangement  
A flap valve arrangement for one-way control of the flow of fluid in between an upstream chamber and a downstream chamber, and particularly an inlet valve in a piston-type positive-displacement...
5273406 Pressure actuated peristaltic pump  
A pneumatically actuated pumping device contains three or more tubular bladders enclosed in rigid jackets and interconnected through openings at both ends forming a common internal pumping channel....
5252044 Parenteral fluid pump with disposable cassette  
An ambulatory parenteral fluid infusion pump employs a disposable in-line cassette which provides three independent fluid paths between two flexible plastic sheets. The fluid path extends through a...
5238244 Pump ball  
An inflatable throw toy having a flexible wall defining an enclosure adapted to be thrown when inflated. A manually operated pump is fixed to the flexible wall. The pump includes a flexible...
5219279 Volumetric pump with pump plunger support and method  
A volumetric pump and method for displacing a predetermined quantity of fluid at a predefined cracking pressure, independent of supply and output pressures. The volumetric pump (30) includes an...
Matches 1 - 50 out of 173 1 2 3 4 >