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5244461 |
Infusion pump with occlusion sensitive shutoff
An infusion pump, suitable for medical applications, has a movable carriage which is arranged gradually to depress the plunger of a syringe. The carriage moves along a fixed rod at a rate...
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5211626 |
Medical infusion apparatus
Medical infusion apparatus comprises a housing in which a standard flexible liquid reservoir is disposed. A constant-force spring applies pressure to the reservoir to force liquid out of the...
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5211631 |
Patient warming apparatus
Patient warming apparatus includes a catheter which mixes relatively hot intravenous fluids with the patient's blood without excessive tissue damage, by monitoring the temperature of the mixed...
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5207642 |
Closed multi-fluid delivery system and method
An improved multiple fluid delivery system usable for the delivery of intravenous fluids to a patient from a plurality of fluid sources includes flexible tubing members for coupling the sources to...
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5190522 |
Device for monitoring the operation of a delivery system and the method of use thereof
A device for monitoring a delivery system comprising a volumetric micropump, a measuring element or sensor located in the infusion line, a matching system and an analyzing system. The devices are...
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5181910 |
Method and apparatus for a fluid infusion system with linearized flow rate change
A programmable infusion pump and controller for automatically determining the interval between pump activations necessary to produce a substantially linear rate of increase or decrease in fluid...
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5178603 |
Blood extraction and reinfusion flow control system and method
A method and system for adaptively controlled withdrawal/infusion of a fluid, such as blood, to or from a fluid source, such as a blood vessel. An adaptive flow rate limit is established and...
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5178179 |
Pressure equalizing vessel for a hemodialysis concentrate
This invention relates to a pressure equalizing vessel for a hemodialysis concentrate. To ensure the supply of concentrate at a constant pressure to the concentrate pump for preparing dialysis...
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5176631 |
Ultrasonic air-in-line detector for detecting entrained air in a medication infusion system
An ultrasonic air-in-line detection system for use in detecting entrained air bubbles in the fluid line of a disposable cassette mounted on a main pump unit is disclosed which can accurately detect...
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5171029 |
Seal construction for pump apparatus
An endless path calibration system comprising a sensor cassette having a flow-through passage and at least one sensor to be calibrated, a chamber coupled to the sensor cassette to define an endless...
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5154704 |
IV clamp with tube clip
An apparatus clamps an intravenous (IV) tube used in an infusion device to control flow rate of IV fluid in the IV tube. A tube clip has first and second pinching members biased for exerting a...
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5139484 |
Ambulatory syringe-pusher device for parenteral injections with output servo-controlled by the contents of the syringe
This invention relates to a syringe-pusher device for ambulatory treatment, automatically delivering in a constant time compatible with the circadian rhythms, a fixed number of elementary volumes...
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5135485 |
Capacitance-type fluid level sensor for i.v. and catheter bags
A capacitance-type fluid level sensing system, method, and device is disclosed for determining the amount of fluid in a container, for example, a disposable plastic bag used for intravenous (i.v.)...
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5131816 |
Cartridge fed programmable ambulatory infusion pumps powered by DC electric motors
A cartridge fed infusion pump containing a plurality of linear peristaltic pumps. Each pump is powered by a direct current motor. The motor has a shaft which rotates to perform a pump cycle. A...
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5123902 |
Method and apparatus for performing surgery on tissue wherein a laser beam is applied to the tissue
Surgical procedures on biological tissue are carried out with the aid of a laser with substances being applied to the tissue before or during the treatment and these substances are absorbent in the...
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5116312 |
Method and apparatus for automatic autotransfusion
A method and system for closed-loop, automated, closed, autotransfusion having a computer in electronic communication with a bedside monitor, an infusion pump, wherein the infusion pump is...
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5112019 |
Motorized IV pole assembly
A motorized IV pole system for controlling the height of an IV container to thereby control the infusion pressure in an IV tube includes a telescoping IV pole system. In one embodiment, comprising...
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5104374 |
Electronic fluid flow rate controller for controlling the infusion of intravenous drugs into a patient
An electronic controller connected to an electronic infusion pump which regulates the rate at which a drug is infused into a person. A magnetic card reader reads from a magnetic card, the name of...
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5078682 |
Liquid transfusion apparatus
The liquid transfusion apparatus according to the present invention includes a setting device adapted to respectively set a normal level of pressure of the fed liquid and an upper alarm level of...
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5064412 |
Ultrasonic air-in-line detector for a medication infusion system
An ultrasonic air-in-line detection system for use in detecting air bubbles in the fluid line of a disposable cassette mounted on a main pump unit is disclosed which can accurately detect air...
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5057278 |
Sterile loop calibration system
An endless path calibration system comprising a sensor cassette having a flow-through passage and at least one sensor to be calibrated, a chamber coupled to the sensor cassette to define an endless...
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5041086 |
Clinical configuration of multimode medication infusion system
A medication infusion system may be selectively configured to perform an emulation of any one of a plurality of Device Types corresponding to the environment of use. The particular parameters which...
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5037407 |
Electronic monitoring system for drainage device
An electronic monitoring system for a drainage device is provided with a bubble detector which transmits a signal upon the passage of a bubble through a bubble chamber of a surgical drainage...
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5026348 |
Apparatus and method for the detection of IV catheter obstruction and extravasation
An in-line fluid conduit condition analyzer which includes a chamber placed in the conduit flow path and having one wall forming a piezoceramic bender that varies the chamber volume (or pressure)...
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5010473 |
Method and apparatus for model-based control of an open-loop process
A method and apparatus for controlling a model based open-loop process and more specifically, the concentration of a drug delivered intravenously to a patient as a function of the rate of infusion....
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5006997 |
Pump diagnostic system
A method and apparatus to evaluate the performance of an implanted medication delivery device such as pumps and ports is described. In the case of a pump, the system measures ambient pressure and...
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5006110 |
Air-in-line detector infusion system
An air-in-line detection system for use in detecting air bubbles in the fluid line of a disposable cassette mounted on a main pump unit is disclosed which can accurately detect air bubbles in any...
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5004459 |
Continuous cyclic peritoneal dialysis system and method
A continuous cycle peritoneal dialysis system which includes a source (14) of dialysis fluid, and an inflow line (34) and outflow line (35) connected to a catheter (26) implanted in the peritoneal...
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4995268 |
Method and apparatus for determining a rate of flow of blood for an extracorporeal blood therapy instrument
Method and apparatus for determining the flow rate of blood passing between a patient and an extracorporeal therapy instrument. The flow measurement apparatus includes a delivery unit for producing...
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4994035 |
Pressure-transmitting diaphragm system for infusions
A pressure-transmitting diaphragm system for infusions, especially for infusions supplied by a pressure-generating pump, with an infusion line leading from the infusion receptacle to the catheter...
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4983901 |
Digital electronic foot control for medical apparatus and the like
A digitial electronic foot pedal control system, especially for medical apparatus and the like having a plurality of operating functions which can be selected among, comprises a pivotally mounted...
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4981467 |
Apparatus and method for the detection of air in fluid delivery systems
An infusion device includes an infusion pump for delivering a liquid through an infusion conduit from a separate source of the liquid into a patient, a bubble detector for detecting the presence of...
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4976687 |
Apparatus for controlling the supplying of intravenous fluids
Intravenous fluid is supplied under the control of a microprocessor from a reservoir to a cannula through a flow member and a flow control device which responds, via the microprocessor, to the line...
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4966579 |
Apparatus for dosed continuous simultaneous infusion of a plurality of infusion solutions or medicaments
An apparatus is described for dosed continuous simultaneous infusion of several solutions or medicaments which are arranged in a plurality of containers (25, 26) or syringes (3, 4). From said...
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4950235 |
Container-side occlusion detection system for a medication infusion system
A system for detecting an occlusion in a fluid line is disclosed which can detect occlusions in the upstream or container side of a disposable cassette containing a fluid pump therein. The cassette...
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4946439 |
Dual source parenteral infusion system with secondary infusion module
A dual source parenteral infusion system includes a primary controller which controls the flow rate of a parenteral solution, a display which displays parameters associated with the delivery of a...
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4938079 |
Thermal transit time flow measurement system
The apparatus accurately measures flow rate of fluid within a conduit without direct fluid contact, based on the introduction of a thermal marker into the fluid stream by means of at least one...
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4936828 |
Liquid drop image sensor
A liquid drop images sensor for determining the volume of liquid drops comprises a light source and an array of optical sensors which receive light energy from the source. The array is positioned...
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4927411 |
Drive mechanism for disposable fluid infusion pumping cassette
A disposable fluid infusion pumping chamber cassette comprises a sandwich type construction which lends itself to a multiplicity of control and monitoring functions including pressure monitoring,...
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4921480 |
Fixed volume infusion device
In a gravity feed intravenous fluid delivery system, a fixed volume metering valve having an upwardly spring biased fluid-measuring piston that is also downwardly pressure biased and is effective...
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4919649 |
Fluid delivery system
A fluid delivery system is provided with a disposable delivery set which includes an inlet tube, an outlet tube and a column tube connected to a syringe. A motor set is arranged to operate the...
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4909786 |
Apparatus for controlling the flow of an infusion fluid in an infusion system
An apparatus for controlling the flow of an infusion fluid in an infusion system with a drip chamber and a deformable tube, is provided with a sensor for detecting the drops of infusion fluid...
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4904239 |
Infusor having a distal flow regulator
An infusor (10) is disclosed for dispensing a liquid under pressure at a predetermined flow rate. The infusor (10) includes a housing (12) containing an elastomeric bladder (16) for receiving the...
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4904237 |
Apparatus for the exchange of cerebrospinal fluid and a method of treating brain and spinal cord injuries
Disclosed is an apparatus and method for exchanging cerebrospinal fluid. The apparatus withdraws cerebrospinal fluid from the lumbar subarachnoid space, filters, cools, pH adjusts and performs...
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4900305 |
Ambulatory infusion pump
A pulsed liquid injection device for injection of predetermined dosage volumes of medication at predetermined intervals of time over an extended period is described. A relatively large supply of...
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4898576 |
Intravenous fluid flow monitor
An improved system for monitoring the fluid flow through a fluid delvery system to a patient wherein the fluid flow rate is varied in a predetermined sequential manner. Corresponding changes in...
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4889528 |
Drip infusion rate control apparatus
A drip infusion rate control apparatus controlling the flow rate of a medical solution to be infused into a human or animal body by means of a drip infusion system. The apparatus includes a weight...
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4886498 |
Mechanism for coupling the aspirant line of an irrigation/aspiration machine to the pressure monitoring section
A linking mechanism for irrigation/aspiration machines which includes a coupling member having a plug that is inserted into an opening in a receptacle on the face of the I/A machine. The plug...
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4878896 |
Cassette optical identification apparatus for a medication infusion system
A cassette identification system for use with a medication infusion system having disposable cassettes which are mounted onto a main pump unit is disclosed which uses an optical sensor module to...
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4871351 |
Implantable medication infusion system
An implantable medication delivery system comprising an implantable unit with a refillable reservoir, a catheter connected thereto, and a pumping mechanism activated by a microcomputer or...
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