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Sensor controls pump, motor, or pressure driven means

Subclass of:

604 - Surgery

604019000 - MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.)

604048000 - Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin

604065000 - Material flow varying means controlled by condition responsive sensor

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Entries
DocumentTitleDate
20080269673Cellular-Enabled Medical Monitoring and Infusion System - Described is a medical infusion device that is configured to send and receive data on a real-time basis through the use of circuitry that enables the connection of the device to a cellular network. In one embodiment, a medical infusion device is provided that includes a housing having a drug reservoir, a first processing system and a drive mechanism adapted to receive and execute instructions from the first processing system. The drive mechanism is in mechanical cooperation with the drug reservoir for controlling expulsion of the drug from the reservoir. Medical infusion device also includes an input device for receiving external instructions and configured to transmit the external instructions to the first processing system, a display for receiving and displaying information from the first processing system, and a second processing system in communication with the first processing system for controlling communication between the first processing system and a remote processing system via a cellular network.10-30-2008
20100076372FLUID MANAGEMENT SYSTEM - A fluid management system with a detection circuit for detecting whether an attached surgical device is operational. The fluid management system changes at least one operation mode when the surgical device is detected as being operational. The fluid management system may include inflow, outflow, or inflow/outflow capabilities, and monitors at least one signal characteristic of an AC power signal provided to the surgical device.03-25-2010
20120245515System and Methods for Medicament Infusion - System for trans-dermal delivery of doses of a medicament, comprising a delivery device to be placed in dermal contact with a patient, the delivery device comprising a reservoir for holding a medicament to be delivered, a trans-dermal injection element for delivering doses of the medicament to the patient, a control unit for controlling the delivery of the medicament when activated, the system further comprising a separate hand-held drive device to be temporarily placed in proximity of the delivery device when a dose of medicament is required, the drive device comprising an activation unit for activating the control unit of the delivery device.09-27-2012
20120245514AUTOMATICALLY INDENTIFYING THERAPY DELIVERY COMPONENT CONNECTED TO IMPLANTABLE MEDICAL DEVICE - A therapy delivery component is connected to an IMD with a coupling that has a known physical property, based upon which the type and/or connection status of the therapy delivery component is automatically identified.09-27-2012
20090005729MEDICAL INFUSION PUMPS - Disclosed is a medical infusion device including a dedicated processing unit for detecting abnormal operation of the operation of the device. Specifically, a watchdog controller is employed as an independent monitor of the functioning of microprocessors used in the medical infusion device for controlling things such as RF communication, insulin infusion, and system integrity. Through the use of an independently-powered watchdog control system, the accuracy and reliability of the device is enhanced, resulting in greater assurance to the patient receiving periodic or continuous infusion of a drug.01-01-2009
20130079710Therapy Management Development Platform - A therapy management development platform includes a pump controller coupled to an interface module. The interface module includes an interface module controller and a module-sensor input/output interface including at least one standardized input port, output port and power connection. The interface module is also customizably programmed to receive data from a sensor and to provide instructions to the pump controller to vary the operation of a pump coupled thereto according to one of a plurality of levels of functionality. Upon receipt of an indication of approval from a remote computer to change the level of access to the functionality of the platform, the interface module may be customizably programmed to receive different data from the sensor, to provide different instructions to the pump controller, or both, the approval corresponding to a stage in testing of a medical device.03-28-2013
20100145263SYRINGE MOVEMENT MECHANISM AND CONTROL SYSTEM THEREFOR - A movement and control mechanism for operating a syringe is disclosed. The movement mechanism comprises a rotatable shaft, at least one rod disposed coaxially to the shaft and a plunger associated unit, accommodating the plunger of the syringe and axially translated upon the rotation of the shaft.06-10-2010
20090171269Infusion Device and Methods Therefor - Method and apparatus for providing retractable infusion tubing for an infusion device and a jog wheel user interface for an analyte monitoring system receiver and/or an infusion device control unit is provided.07-02-2009
20090156990Portable Infusion Pump and Media Player - Some embodiments of a portable infusion pump system can be configured to deliver medicine (e.g., insulin or the like) to a user and to deliver media content to a user. The media content can include, for example, MP3 music and other audio/video data stored in a memory device in the portable system. Thus, in particular embodiments, the portable infusion pump system can serve a dual purpose of providing medication and entertainment for the user from a compact and unobtrusive device.06-18-2009
20100106083Method of Operating Ophthalmic Hand Piece with Disposable End - The present invention is a method of operating an ophthalmic hand piece. A connection between a tip segment and a limited reuse assembly is recognized. A type of tip segment connected to the limited reuse assembly is determined. Dosage information is received. A first input is received. In response to the first input, a heater is activated to heat a substance contained in a dispensing chamber. After the substance has reached a desired temperature range, the dosage information is used to control a distance a plunger travels. A second input is received. In response to the second input a motor is activated, and the drug is delivered into the eye.04-29-2010
20100106082IN SITU TUBING MEASUREMENTS FOR INFUSION PUMPS - An infusion pump uses sensors and a computer program to detect tubing in a tube-loading section of the pump. The pump and the computer program also measures one or more of the tubing outer diameter, outer circumference, inner diameter, inner circumference, and tubing wall thickness. The infusion pump utilizes proximity sensors, such as an ultrasonic sensor, a capacitive sensor, or even an air-in-line sensor to detect proximity between two infusion pump surfaces, such as the surfaces that clamp the tubing in the pump, to determine thickness. At least one of the clamping surfaces is equipped with sensors to indicate contact length of the tubing with the surface. Using these measurements, the tubing wall thickness and inner diameter can be determined. Knowing the actual tubing inner diameter, increased volumetric accuracy is possible, up to a three or four percent improvement over present measurements.04-29-2010
20090124965IMPLANTABLE DEVICE FOR THE BRAIN - The present invention consists of an implantable device with at least one package that houses electronics that receives input data or signals, and optionally power, from an external system through at least one coil attached to the at least one package, processes the input data and delivers electrical pulses to neural tissue through at least one array of multiple electrodes that is/are attached to the at least one package. The invention, or components thereof, is/are intended to be installed in the head, or on or in the cranium or on the dura, or on or in the brain.05-14-2009
20120184899PUMP SET HAVING SECURE LOADING FEATURES - An enteral feeding set for an enteral feeding pump having a control system for controlling operation of the pump to supply nutrient liquid to a patient through the enteral feeding set loaded in the pump, a source of electromagnetic radiation operatively connected to the control system of the pump for emitting electromagnetic radiation, and an electromagnetic radiation detector operatively connected to the control system for receiving the electromagnetic radiation and providing an indication to the control system that the feeding set is properly loaded in the pump. The feeding set includes a conduit for carrying nutrient liquid to a patient. A safety interlock includes a light pipe for providing a passage of the electromagnetic radiation from the source of electromagnetic radiation to the electromagnetic radiation detector only when the safety interlock is loaded in the pump such that nutrient liquid flow to the patient is regulated by the pump.07-19-2012
20090259176TRANSDERMAL PATCH SYSTEM - A transdermal patch system configured as a patch or pump assembly may be placed into contact upon a skin surface to transport drugs or agents transdermally via any number of different mechanisms such as microporous membranes, microneedles, in-dwelling catheters, etc. The assembly may enclose or accommodate a reservoir configured as an elongate microchannel to contain the drug or agent suspended in a fluid vehicle. The reservoir may also be fluidly coupled via microchannels to transport the drugs into or against an underlying skin surface as driven or urged via a pump and controlled by an electronic control circuitry which may be programmed to affect any number of treatment regimens.10-15-2009
20090306585IMPLANTABLE PUMPS AND CANNULAS THEREFOR - In various embodiments, an implantable pump includes a cannula. The pump (e.g., the cannula thereof) may include, for example, flow sensors, pressure sensors, filters, and/or other components.12-10-2009
20090093756Programming and Bolus Monitoring Device for an Implantable Drug Pump - A programming device for an implantable drug pump includes a display device, a communication device, and a controller. The communication device is adapted to facilitate a communication link between the programming device and an implantable drug pump. The controller adapted to receive bolus data stored on the implantable drug pump when the communications link has been established, to process the bolus data, and to control the display device to generate a visual representation of numbers of bolus attempts for multiple periodic time intervals.04-09-2009
20090270798METHOD AND INSULIN PUMP FOR PROVIDING A BOLUS ALERT - A method of providing a bolus alert for an insulin pump user includes determining a bolus interval for an insulin pump user, establishing a bolus amount for the bolus interval, determining a bolus amount taken by the insulin pump user during the bolus interval, and providing an alert if the bolus amount taken by the insulin pump user differs from the bolus amount established for the bolus interval.10-29-2009
20090054832ADMINISTRATION APPARATUS FOR MEDICAL USE - An expansion/compression mechanism of a piston rod assembly is composed of a bush shaft, a first cylindrical piston rod that is screwed with the bush shaft, a second cylindrical piston rod that is screwed with the first piston rod, and a piston rod holding member for housing the bush shaft and these piston rods. Therefore, the piston rods move linearly in multiple stages.02-26-2009
20080294097Portable Infusion Set - Disclosed is a portable infusion set which comprises a supply pump for artificially supplying infusion solution to a tube passage connecting a solution storing vessel and an injection syringe, an elastic tube which is installed at the rear end of the supply pump and which is made of elastic material so that the infusion solution supplied from the supply pump is introduced or discharged through the expansion or contraction of the elastic tube, a supply sensor which detects the expansion or contraction limit of the elastic tube, and a micro-computer which controls power supply to the supply pump according to the signal of the supply sensor. The infusion solution is temporarily stored in elastic tube by the supply pump which is set to on/off by the micro-computer, and then injected to a human body with constant pressure through the contractile force of the elastic tube. By using the portable infusion set of the present invention, infusion solution can be supplied when the storing vessel is below human body and power consumption is lowered by intermittent use of the supply pump making the infusion set light and portable, and overpressure between the supply pump and the injection syringe that occurs when the syringe is clogged is prevented making the use of the infusion set more safe11-27-2008
20090112155Micro Diaphragm Pump - The invention relates to micropumps for infusing fluids. More specifically, the present disclosure describes and illustrates a micropump design that may be useful for infusing insulin into a diabetic patient. The disclosed design employs a pump chamber that has a diaphragm and a plurality of check valves that are configured to avoid leakage from the reservoir through the pump engine and into an infusion device and, also, to ensure the complete, accurate evacuation of the pump chamber.04-30-2009
20120191038RETROFITTABLE ASPIRATION PREVENTION MECHANISM FOR PATIENTS - A device is employed that can be retrofit onto existing feed pumps to remediate the problem of fluid aspiration in patients being fed through a feeding tube from the pump. In one embodiment the feeding pump is plugged into the device which is plugged into a power outlet. A patient angle sensor triggers power cutoff to the pump and stoppage of fluid flow. The angle sensor and operating program may be part of a smart phone. Power to the pump may be shut off due to a Bluetooth signal from the smart phone to a Bluetooth controlled power strip into which the pump is plugged to receive power.07-26-2012
20100036313SURGICAL FLUID MANAGEMENT - A fluid flow device includes a housing configured to releasably mate with a surgical control unit for controlling fluid flow during a surgical procedure. First and second ports measure fluid pressure within a fluid path provided within the housing. The fluid flow device includes a restrictor for restricting fluid flow at a restriction location along the fluid path. The first port is located upstream of the restriction location and the second port is located downstream of the restriction location. A fluid pump is provided within the housing.02-11-2010
20120035535METHOD OF VARYING THE FLOW RATE OF FLUID FROM A MEDICAL PUMP AND HYBRID SENSOR SYSTEM PERFORMING THE SAME - A system and method of varying the flow rate of fluid from a medical pump through tubing includes determining an inner diameter of the tubing and fluid flow velocity of fluid in the tubing with a controller based on acoustic signals received by a capacitive micromachined ultrasonic transducer sensor system and then determining and adjusting a fluid flow rate of fluid in the tubing with the controller. In addition, the same sensor system also detects air bubbles in the fluid in the tubing.02-09-2012
20090299277INFUSION PUMP ASSEMBLY - A wearable infusion pump assembly including a reservoir for receiving an infusible fluid, and a fluid delivery system configured to deliver the infusible fluid from the reservoir to an external infusion set. The fluid delivery system includes a volume sensor assembly configured to receive a quantity of the infusible fluid from the reservoir. The volume sensor assembly includes an acoustically contiguous region having a volume that varies based upon the quantity of infusible fluid received from the reservoir, and an acoustic energy emitter configured to provide acoustic energy at a plurality of frequencies to excite a gas included within the acoustically contiguous region.12-03-2009
20110270160Medicine Dispensing Device - Some embodiments of a wearable, disposable medicine dispensing device may include a piston rod that is advanced to dispense medicine from the device. A rotational motor may be coupled to a drive mechanism so as to carry out a certain number of revolutions and thereby displace the piston rod by a desired distance. Such a device can be used in a method of dispensing liquid medicine.11-03-2011
20090143726MEANS 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 pressure sensor positioned there between. A camshaft is associated with the pumping element, an inlet control element, and an outlet control element for closing the pumping chamber to flow when the pumping chamber is pressurized. A processing unit receives pressure and position data from the pressure sensor and a position sensor associated with the pumping element, and processes this data to determine the operating condition of the pump. The operating conditions determined include: blocked fluid flow, no fluid in the line, no cassette associated with the pump, proper pump priming, or proper valve sealing.06-04-2009
20080208113Fully Automated Control System for Type I Diabetes - An augmented, adaptive algorithm utilizing model predictive control (MPC) is developed for closed-loop glucose control in type 1 diabetes. A linear empirical input-output subject model is used with an MPC algorithm to regulate blood glucose online, where the subject model is recursively adapted, and the control signal for delivery of insulin and a counter-regulatory agent such as glucagon is based solely on online glucose concentration measurements. The MPC signal is synthesized by optimizing an augmented objective function that minimizes local insulin accumulation in the subcutaneous depot and control signal aggressiveness, while simultaneously regulating glucose concentration to a preset reference set point. The mathematical formulation governing the subcutaneous accumulation of administered insulin is derived based on nominal temporal values pertaining to the pharmacokinetics (timecourse of activity) of insulin in human, in terms of its absorption rate, peak absorption time, and overall time of action.08-28-2008
20090112156Variable Volume, Shape Memory Actuated Insulin Dispensing Pump - A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.04-30-2009
20090275887Infusion Pump System - Some embodiments of a portable infusion pump system can be configured to can be configured to adjust the sensitivity of particular detectors or alert systems based (at least in part) on information received from a monitoring device. For example, a glucose monitoring device can communication with an infusion pump assembly used to supply insulin or another medication to a user. In such circumstances, the data received from the monitoring device can be used to adjust the sensitivity of an occlusion detection system.11-05-2009
20090043252INFUSION APPARATUS - In a peristaltic medical infusion pump unit, comprising a peristaltic assembly and a counter surface or anvil facing said peristaltic assembly and provided by the inner surface of a door (02-12-2009
20090118667METHOD AND DEVICE FOR IDENTIFYING A CHANGE IN PRESSURE IN THE LIQUID PATH OF A MICRODOSING DEVICE - An insulin pump and an infusion set adapter having a membrane which can be acted upon by a liquid flow path associated with the pump, wherein the pump comprises a sensor by which a change in shape or location of at least a portion of the membrane caused by a change in the liquid pressure in the flow path can be detected in a contact-free manner to identify an occlusion in the flow path.05-07-2009
20100137790DETACHABLE PORTABLE INFUSION DEVICE - A portable therapeutic apparatus and a method for controlling the apparatus are provided. In one aspect the apparatus and the method can be implemented using a patch unit (06-03-2010
20110201998Hand-Held Electronically Controlled Injection Device For Injecting Liquid Medications - A medication delivery device includes a housing, a door coupled to the housing and moveable between a closed position and an open position. The door permits insertion of a medication container, containing liquid medication, into the housing in the open position. A door opening mechanism is coupled to the door. A push member is axially moveable between a retracted position and a non-retracted position and located external to the medication container. The push member enters the medication container and pushes the liquid medication out of the medication container. A lock mechanism is coupled to the door opening mechanism and prevents opening of the door when the push member is in the non-retracted position inside the medication container, wherein the lock mechanism automatically unlocks the door opening mechanism when the push member is in the retracted position.08-18-2011
20080255502FLUID DELIVERY SYSTEM AND FLOW CONTROL THEREFOR - A fluid delivery system having a closed-loop control process for delivering a medical fluid to a patient. A fluid infusion system includes a pump for delivering a fluid to a patient via an administration tube. A flow sensor associated with the administration tube provides an indication of the actual flow rate of fluid in the administration tube. Such a flow sensor may comprise a positive displacement flow sensor constructed using micro-fabrication and/or micro-molding techniques. A reader reads the actual flow rate signal and provides an indication to a controller for controlling the pump. The flow rate information can also be used for providing status information, such as the existence of a blockage in the fluid delivery system.10-16-2008
20080294098End of stroke detection for electromagnetic pump - Detection of end of stroke for an electromagnetic pump is performed using, for example, a calculated first flux derivative.11-27-2008
20080312585METHOD OF OPERATING A MEDICAL DEVICE AND AT LEAST A REMOTE CONTROLLER FOR SUCH MEDICAL DEVICE - A disease management system, methods, and devices are shown and described. In one embodiment, the system includes an infusion pump and a remote controller with the ability to be paired to each other. A method to verify a wireless connection between an infusion pump and a remote controller is shown and described herein. In a further embodiment, a method to verify a wireless connection between an infusion pump and a remote controller is provided. In addition, a method of operating a diabetes management system is provided in which the system includes an infusion pump and at least a remote controller.12-18-2008
20090156991Communication of Original and Updated Pump Parameters for a Medical Infusion Pump - Methods and systems of patient treatment are disclosed. The methods and systems include use of medical device informatics to modify and validate therapies and drugs used in those therapies. In certain embodiments, a medical device, such as a medical infusion pump, interfaces with a server to administer the patient treatments. In one aspect, a method of tracking changed parameters in a medical infusion pump is disclosed. The method includes establishing a communication session between a medical infusion pump and a medical device server, and communicating an original parameter value, an updated parameter value, and a final parameter value from the medical infusion pump to the medical device server. The method further includes storing the original parameter value, the updated parameter value, and the final parameter value on the medical device server. Metadata associated with one or more of the parameter values identifies that parameter value to the medical device server and the medical infusion pump.06-18-2009
20120197185Electromechanical system for IV control - We describe electromechanical systems for IV control. Based on dripping speed measurement by video processing technique, we adjust the position of the presser to press the dripping tube to the appropriate position to control the dripping speed. To do this mechanically, the processing unit issues commands to a stepper motor to control its rotation, and either a leadscrew or its variants, or a cam, is used to translate motor's rotation into presser's linear motion. When the processing unit detects that the dripping is finished, the device will also cut the dripping off immediately with the presser.08-02-2012
20090177149METHOD OF PURGING AIR FROM A MEDICAL FLUID MACHINE - A medical fluid machine includes a housing providing a first wall and a second wall, the first and second walls at least partially defining a pump chamber. A fluid receptacle is located within the pump chamber, the fluid receptacle including first and second flexible membranes configured to be moved apart to accept a medical fluid and moved together to dispel the fluid. A medical fluid outlet is in communication with the fluid receptacle. A first valve arrangement is configured to enable medical fluid in a sufficiently air-free condition to be delivered from the receptacle through the medical fluid outlet to a patient. A second valve arrangement is configured to enable medical fluid with entrained air to be delivered instead from the receptacle through the medical fluid outlet to an entrained air destination.07-09-2009
20090177147INSULIN PUMP WITH INSULIN THERAPY COACHING - An apparatus comprising a pump configured to deliver insulin, an input configured to receive information related to managing diabetes of a user, a user interface, and a controller communicatively coupled to the pump, the input, and the user interface. The controller includes an insulin timing module configured to initiate delivery of insulin in a time relation to when a meal is to be consumed by the user and to adjust delivery of the insulin according to the received information. Other devices, systems, and methods are disclosed.07-09-2009
20080319384Tailored Basal Insulin Delivery System and Method - Disclosed is a system to deliver insulin to a user's body. The system includes a dispensing unit to deliver the insulin to the body, and a control mechanism to control delivery of basal insulin according to a predetermined basal infusion pattern, the basal infusion pattern selected from a plurality of predetermined basal infusion patterns. In some embodiments, selection of the basal infusion pattern may be based on one or more personal characteristics of the user.12-25-2008
20090326445User Interface for Delivery System Comprising Diary Function - The invention provides a device for displaying information, comprising storage means for storing data, display means adapted to display data to a user, and user input means. The data is organized as data units, each data unit comprising time data, type data and information data, and the display means is adapted to graphically display an aggregate period view comprising at least two period views, graphically display a single period view, graphically display a symbol corresponding to a given data type, graphically display at least one data type symbol for every period view, and display a card view comprising information data corresponding to a selected symbol. The user input means allows the user to select a desired period view from an aggregate period view, the display thereby displaying the selected period view, and select a desired symbol, the display thereby displaying a card view showing at least a portion of the corresponding information data. By this arrangement a data display user interface is created providing the user with both an overview of stored data, yet allows the user to easily navigate to retrieve more detailed data information as desired.12-31-2009
20080306436Devices, Systems, and Methods for Medicament Delivery - Certain exemplary embodiments comprise can comprise an auto-injector, which can comprise: a vial configured to store and/or contain an injectable medicament, the vial defining a vial longitudinal axis, and a housing comprising the vial. In various embodiments, the injectable medicament can be a medicine, medication, drug, pharmaceutical, prescriptive, agent, antidote, anti-venom, hormone, stimulant, vasodilator, anesthetic, and/or nutritional supplement that is substantially ready for injection.12-11-2008
20080306437SYSTEMS AND METHODS FOR CONTROLLED SUBSTANCE DELIVERY NETWORK - In various embodiments, multiple pumps may be used to deliver substances to multiple respective animals. A computer system may send/receive information to/from the pumps (e.g., to control and monitor various aspects of the pumps and/or store information associated with the pump). In some embodiments, the computer system may determine respective controlled delivery rates for the pumps (e.g., based in part on a weight of an animal receiving the substance from the respective pump) and send the determined controlled delivery rates to the respective pumps. The computer system may also receive user identifications from operators controlling a pump (e.g., in response to a pump alarm) and documentation indicators entered by the operator and/or pump to use in documenting pump activity.12-11-2008
20090198176Medication Delivery Device - The medication delivery device is designed to receive a replaceable medication container (08-06-2009
20110144574Apparatus, Systems and Methods for An Infusion Pump Assembly - A system for delivery of a volume of infusible fluid. The system includes a controller configured to calculate a trajectory for delivering infusible fluid, the trajectory comprising at least one volume of fluid, and determine a schedule for delivering the at least one volume of fluid according to the trajectory, wherein the schedule comprising an interval and a volume of infusible fluid for delivery. The system also includes a volume sensor assembly for determining the at least one volume of fluid delivered, wherein the controller recalculates the trajectory based on the volume of fluid delivered.06-16-2011
20110224603DEVICE AND METHOD FOR DETERMINING AT LEAST ONE FLOW PARAMETER - A device for detecting at least one flow parameter includes a fluidic series connection of a first flow restriction, a first measurement area, a second flow restriction, and a second measurement area. A first sensor is provided for detecting a quantitative first measure of a pressure existing in the first measurement area. A second sensor is provided for detecting a quantitative second measure of a pressure existing in the second measurement area. An evaluator is provided which is configured to determine, while using the measures detected by the first and second sensors, a flow rate of a fluid flowing through the series connection, and/or to determine whether there is an occlusion of the first flow restriction, of the second flow restriction, or of a fluid area adjoining the second measurement area.09-15-2011
20110230825SYSTEM AND METHOD FOR DRUG PREPARATION AND DELIVERY - A disposable cassette for mixing a drug in a vial includes a liquid inlet for connection to a liquid supply, a first vial spike, a second vial spike, a chamber and a valve mechanism. The chamber, the first and second vial spikes, and the liquid inlet are in fluid communication with each other. The valve mechanism may be actuated to control flow between the chamber, the vial receptacles and the liquid inlet.09-22-2011
20120078170INFUSION PUMPS - Ambulatory infusion pumps, pump assemblies, cartridges, baseplates, cannulas, insertion tools, and related components as well as combinations thereof and related methods.03-29-2012
20090221957Ambulatory Infusion Devices And Methods With Blockage Detection - Infusion devices with blockage detection capability and methods of monitoring infusion devices.09-03-2009
20090254025PAIN CONTROLLED ANALGESIC ("PCA") APPARATUS - An infusion pump includes: a housing, a pump actuator supported by the housing, electronics configured to control the pump actuator, a pain controlled analgesic (“PCA”) input device, a cord having a remote end connected to the PCA input device and a local end connected to the housing, a remote integrated circuit; and a local integrated circuit in communication with the electronics and the remote integrated circuit so as to provide operational information concerning the PCA input device to the electronics.10-08-2009
20100274182Power Injector with Flow Rate Assessment - A flow rate assessment protocol (10-28-2010
20100185143SENSOR SYSTEM FOR DRUG DELIVERY DEVICE, DRUG DELIVERY DEVICE HAVING THE SAME AND METHOD OF USING THE SAME - A system for use with a drug delivery device includes a sensor unit and a deactivation unit operatively coupled to an output of the sensor unit and to a drug-retaining region of the drug delivery device, wherein the drug-retaining region contains a drug. The sensor unit is configured to detect a characteristic of a local environment and generate an output corresponding to a value of the detected characteristic. The deactivation unit is configured to render the drug ineffective when the output of the sensor unit satisfies a predetermined condition.07-22-2010
20090076443DEVICE AND METHOD FOR THE AUTOMATIC INITIATION OF AN INJECTION - A system and method to automatically initiate an injection procedure of a medicament into a patient. In the system, a delivery assembly includes an injector for infusing the medicament into the patient. Further, the system includes a monitor for detecting a parameter characteristic of the procedure, for instance, a pressure indicative of a partial vacuum between the injector and the injection site, a pressure exerted by the patient against the delivery assembly, a conductance, a capacitance, or an optical blood reading. Also, the system includes a timer for determining compliance of the parameter within a predetermined range during a first time interval. In response to the timer, an actuator initiates the injection procedure at the expiration of the first time interval. Further, the actuator may stop the injection procedure if the parameter is outside the predetermined range during a second time interval.03-19-2009
20110112472FLUID LEVEL DETECTION SYSTEM - A medical device fluid sensing system is provided. The system includes a transmitter array positioned in association with a fluid maintaining device, such as a reservoir in a cassette. Electrical circuitry is connected to the transmitter array and configured to cause the transmitter array to transmit light energy at a predetermined wavelength and producing a desired absorption coefficient based on expected conditions within the fluid maintaining device. The system also includes a receiver array configured to receive light energy transmitted through the fluid maintaining device and originating from the transmitter array, and a controller configured to determine fluid level in the fluid maintaining device based on conditions sensed by the receiver array. In one embodiment, three transmitters and three matching sensors are provided in a surgical cassette, and when optical energy having predetermined characteristics is provided to the transmitter array, the presence or absence of fluid is determined.05-12-2011
20130218073BLOOD ACCESS DEVICE - A blood access device including a fluid conduit configured to convey a flow of fluid to a target vessel, a second lever element pivotally and resiliently connected to a first lever element such that it may move from a first position to a second position. A biasing force is exerted on the second lever element for moving it from the first position to the second position, and a blocking member may be activated by the second lever element, such that a flow of fluid is decreased when the second lever element is moved from the first position to the second position. The lever elements are configured to be fixed to the target vessel when the second lever element is in the first position, and the second lever element moves to the second position and activates the blocking member if the fixation is at least partially lost.08-22-2013
20090143727MEANS 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 pressure sensor positioned there between. A camshaft is associated with the pumping element, an inlet control element, and an outlet control element for closing the pumping chamber to flow when the pumping chamber is pressurized. A processing unit receives pressure and position data from the pressure sensor and a position sensor associated with the pumping element, and processes this data to determine the operating condition of the pump. The operating conditions determined include: blocked fluid flow, no fluid in the line, no cassette associated with the pump, proper pump priming, or proper valve sealing.06-04-2009
20100211003High Precision Infusion Pumps - A system architecture for closed loop control of infusion devices is described. The architecture provides means to control the flow from an infusion device as well as in some embodiments the pressure of the delivery. A variety of infusion systems are described that use the closed loop control architecture. In some embodiments the closed loop control may be adapted to current commonly used infusion means such as a gravity feed intravenous system. Other embodiments describe infusion pump system that use biasing or drive mechanisms of springs, elastomers, rotary and linear motors.08-19-2010
20100100037TOUCH SCREEN SYSTEM AND NAVIGATION AND PROGRAMMING METHODS FOR AN INFUSION PUMP - A medical pump system includes an input device for entering a command or a value of a pump programming parameter and a memory for storing a programming code. A processor is in communication with the memory and the input device in order to generate a display signal for an output device to generate one of a plurality of screens, such as near view and far view screens. The programming code is operable to display on a far view screen a plurality of medical therapy buttons that can be used to navigate directly to a near view programming screen. The far view screen can also concurrently display quick titration buttons that are associated with the medical therapy buttons and can be used to navigate directly to a quick titration screen without having to go to a general near view delivery screen or near view programming screen.04-22-2010
20100198144METHOD FOR USING A PUMP SET HAVING SECURE LOADING FEATURES - A controller for operating a pumping apparatus to supply fluid to a patient through a pump set includes a processor programmed to instruct a first source of electromagnetic radiation to emit electromagnetic radiation in a direction for striking a safety interlock of the pump set. The processor activates a first electromagnetic radiation detector to detect the electromagnetic radiation emitted from the first source. The processor instructs a second source of electromagnetic radiation to emit electromagnetic radiation in a direction for striking the safety interlock. The processor activates a second electromagnetic radiation detector to detect the electromagnetic radiation emitted from the second source. The processor controls the pumping apparatus to operate for pumping fluid in the pump set only when electromagnetic radiation emitted from the first source is detected by the first detector and when the electromagnetic radiation emitted from the second source is not detect by the second detector.08-05-2010
20090318858OPTICAL FLOW SENSOR - An optical flow sensor is provided, including a heater configured to heat an aliquot of fluid in an adjacent fluid-delivery channel and a sensor disposed adjacent to the fluid-delivery channel downstream from the heater. The sensor is configured to illuminate fluid in the fluid-delivery channel, to collect reflected light from the illuminated fluid, and to determine when the heated aliquot passes the sensor based upon an amount of the reflected light. A method for determining a flow rate of a fluid is also provided. The method includes heating an aliquot of the fluid at a first position of a fluid-delivery channel, illuminating fluid in the fluid-delivery channel at a second position downstream from the first position, measuring an amount of light reflected from the illuminated fluid to determine a change in the amount corresponding to the heated aliquot passing the second position, and calculating the flow rate of the fluid based upon a distance between the first position and the second position and a time between the heating the aliquot and the heated aliquot passing the second position.12-24-2009
20090069746Data Storage for an Infusion Pump System - A pump system can include a pump device and a controller device removably attachable to the pump device. The controller device can be reusable, and one or more pump devices can be disconnected and reconnected to the controller device. As such, some pump usage data can be conveniently stored in the pump device itself. In such circumstances, the controller device can receive data related to the pump's history or other usage when the pump device is attached to the controller.03-12-2009
20090069747Power Injector with Movable Joint-Integrated Signal Transmission Connector - A power injector that incorporates at least one signal transmission connector in a movable joint (e.g., between a powerhead and a support or stand; between at least one adjacent pair of support sections of a support for the powerhead) is disclosed. Such a signal transmission connector may be in the form of a slip ring module, but in any case is part of the signal transmission link to the powerhead. At least that portion of a signal transmission conduit that is adjacent to the powerhead may be disposed within the interior of the corresponding portion of the support or stand, thereby reducing the potential that an individual will grab onto the signal transmission conduit when attempting to move at least part of the power injector, to change the position of the powerhead, or both.03-12-2009
20090069745Operating an Infusion Pump System - Some embodiments of a portable medical device, such as an infusion pump, can receive an external reference signal (e.g., a radio, cellular and/or satellite signal) to provide an automatic time-setting and maintenance operation. In these circumstances, the medical device can maintain accurate time and date information even in the event of a power interruption, a time-zone change and/or an internal clock error, for example. In this manner, the portable medical device provides safe operation and added convenience to the user.03-12-2009
20110172594Method and System for Detecting an Occlusion in a Tube - Systems and methods for detecting an occlusion in a fluid delivery device are disclosed. The system includes a fluid delivery tube, an occlusion detection sensor configured to be coupled to the fluid delivery tube and further configured to detect occlusion within the fluid delivery tube. The fluid delivery tube includes an occlusion detection portion. The occlusion detection sensor is further configured to detect alteration of a shape of the occlusion detection portion when at least one condition occurs within the fluid delivery tube.07-14-2011
20110245760SYSTEM FOR USE DURING DISCOGRAPHY TO WIRELESSLY TRANSMIT DATA FROM HAND-HELD FLUID DELIVERY DEVICE INSIDE STERILE FIELD TO DEVICE OUTSIDE STERILE FIELD - A fluid delivery device is provided for delivering fluid to a target site such as an intervertebral disc during discography. The fluid delivery device includes pressure and volume sensors to determine the pressure and the volume of the fluid delivered to the intervertebral disc. The fluid delivery device is hand-held during use and includes a syringe assembly having a plunger with threads that enables controlled discharge of the fluid from the fluid delivery device by rotating the plunger in a housing of the fluid delivery device. The fluid delivery device includes a communication module to wirelessly transfer data to an external device outside of a sterile field, while the fluid delivery device is in the sterile field. The fluid delivery device may also include a physiological sensor to monitor involuntary pain responses based on changing physiological parameters such as increases in body temperature or blood pressure.10-06-2011
20090326444DOUBLE-SIDED ADHESIVE SHEET - The double-sided adhesive sheet (12-31-2009
20110152757MEDICINAL FLUID DELIVERY SYSTEMS AND METHODS FOR PRIMING THE SAME - Medicinal fluid delivery systems and methods for priming the same are disclosed. The systems may be configured to measure an electro-transmissive quality of a medicinal fluid when: medicinal fluid is dispensed into a fluid delivery path, a proximal end of the fluid delivery path is in contact with a first electrode, and the distal end of the fluid delivery path is in contact with a second electrode. Methods for priming medicinal fluid delivery systems may include dispensing a medicinal fluid through a fluid delivery path, sensing an electro-transmissive quality of the medicinal fluid, and determining that the fluid delivery path is full based on the electro-transmissive quality.06-23-2011
20110071465FLUID VOLUME DETERMINATION FOR MEDICAL TREATMENT SYSTEM - A volume of fluid moved by a pump, such as a pump in an APD system, may be determined without direct measurement of the fluid, such as by flow meter, weight, etc. For example, a volume of a pump chamber (03-24-2011
20120302946Microfabricated electromagnetic actuator with push-pull motion - A micromechanical electromagnetic actuator may have two separate components: a flux-generating portion and a separate movable structure. The flux-generating portion may have a plurality of conductive coils wound around a magnetically permeable material. Each coil generates a magnetic field along its axis, which is different for each of the coils. The adjacent movable structure may include magnetically permeable features, one inlaid in the movable structure and other stationary features which focus the flux produced by the flux-generating mechanism across a gap between the stationary features. By energizing each coil sequentially, a push-pull motion in the actuator may result from the force of the magnetically permeable features. This push-pull actuator may be particularly effective when used as a pumping element in a drug delivery system, or other fluidic pumping system.11-29-2012
20090030366SELF-ADMINISTRATION INJECTION SYSTEM - Self-injection system allows a user to inject a drug from a cartridge carrying unique identification information, into any one of a plurality of injection sites. Tissue at each injection site is associated with at least one injection parameter, such as flow-rate, that is different for each site. A scanner reads the identification information of the cartridge and cooperates with a central processing unit to determine the validity of the drug in order to permit an injection procedure to commence. The central processing unit has a memory for storing the different injection parameters and controls a drive unit for driving fluid from the cartridge and through a needle into the selected tissue, at the injection parameter that is associated with the user selected tissue for the injection.01-29-2009
20110152756REFILL OF IMPLANTABLE FLUID DELIVERY DEVICES BASED ON THERAPEUTIC FLUID EXPIRATION - An expiration time of a therapeutic fluid delivered by an implantable fluid delivery device is employed to calculate a fill volume and determine a refill interval for the fluid. The expiration time of the therapeutic fluid may be based on or dictated by a stability time set by the manufacturer of the therapeutic fluid, a clinician treating a patient to whom the fluid is to be delivered, the manufacturer of the device delivering the fluid, or combinations thereof.06-23-2011
20100056994PUMPING APPARATUS WITH SECURE LOADING FEATURES - A pumping apparatus and pump set for use to deliver a supply of liquid to a patient. The feeding set has a conduit for the nutrient liquid and a safety interlock device associated with the conduit. The pumping apparatus has a pumping device and a control system for controlling operation of the pump. An electromagnetic radiation source is operatively connected to the control system of the pump for emitting an electromagnetic radiation signal in a direction for striking the safety interlock device of the feeding set. The safety interlock device being adapted to affect the direction of the electromagnetic radiation. An electromagnetic radiation detector is operatively connected to the control system for receiving the electromagnetic radiation signal when the direction is affected by the safety interlock device, and provides an indication to the control system that the feeding set conduit is properly positioned in the feeding pump.03-04-2010
20090177148SYSTEM AND METHOD FOR DETECTING OCCLUSION USING FLOW SENSOR OUTPUT - A method and system for detecting an inclusion within an infusion system. The method includes monitoring an output signal of a flowrate sensor as fluid flows through an infusion system. The output signal is then converted with a noise reduction filter to obtain a filtered output signal. The filtered output signal is compared to a threshold value and an alarm is activated if the filtered output signal falls below a desired threshold, thereby indicating an occlusion within the infusion system.07-09-2009
20080243057FLUID DELIVERY SYSTEM AND FLOW CONTROL THEREFOR - A fluid delivery system having a closed-loop control process for delivering a medical fluid to a patient. A fluid infusion system includes a pump for delivering a fluid to a patient via an administration tube. A flow sensor associated with the administration tube provides an indication of the actual flow rate of fluid in the administration tube. Such a flow sensor may comprise a positive displacement flow sensor constructed using micro-fabrication and/or micro-molding techniques. A reader reads the actual flow rate signal and provides an indication to a controller for controlling the pump. The flow rate information can also be used for providing status information, such as the existence of a blockage in the fluid delivery system.10-02-2008
20110257591VOLUME MONITORING FOR IMPLANTABLE FLUID DELIVERY DEVICES - Unexpected changes in the volume of therapeutic fluid in the reservoir of a fluid delivery device are detected based on changes in the pressure of the reservoir measured over a period of time by a pressure sensor. Additionally, an ambulatory reservoir fluid volume gauge is provided to indicate an actual volume of therapeutic fluid in a fluid delivery device reservoir. The actual volume of therapeutic fluid in the reservoir indicated by the ambulatory reservoir fluid volume gauge is determined based on changes in the pressure in the reservoir measured over a period of time by a pressure sensor.10-20-2011
20080312584SYSTEMS AND METHODS TO PAIR A MEDICAL DEVICE AND A REMOTE CONTROLLER FOR SUCH MEDICAL DEVICE - A disease management system, methods, and devices are shown and described. In one embodiment, the system includes an infusion pump and a remote controller with the ability to be paired to each other. A method to verify a wireless connection between an infusion pump and a remote controller is shown and described herein. In a further embodiment, a method to verify a wireless connection between an infusion pump and a remote controller is provided. In addition, a method of operating a diabetes management system is provided in which the system includes an infusion pump and at least a remote controller.12-18-2008
20110021979Enteral Feeding Set and Interlock Device Therefor - An enteral feeding set for an enteral feeding pump having a control system for controlling operation of the pump to supply nutrient liquid to a patient through the enteral feeding set loaded in the pump, a source of electromagnetic radiation for emitting electromagnetic radiation and an electromagnetic radiation detector for receiving the electromagnetic radiation. The enteral feeding set includes a conduit for carrying nutrient liquid to a patient and a safety interlock device associated with the conduit adapted for mounting in the pump. The safety interlock device includes an electromagnetic radiation propagation affecting member formed to affect the propagation of electromagnetic radiation from the source of electromagnetic radiation through the safety interlock device and block visible light when properly loaded on the pump for directing the electromagnetic radiation from the source of electromagnetic radiation to the detector.01-27-2011
20100292635High Precision Infusion Pump Controller - A controller for closed loop control of infusion devices is described. A variety of infusion systems are described that use the closed loop control architecture. In some embodiments the closed loop control may be adapted to current commonly used infusion means such as a gravity feed intravenous system. Other embodiments describe infusion pump system that use biasing or drive mechanisms of springs, elastomers, rotary and linear motors.11-18-2010
20110118662Occlusion Sensing for an Infusion Pump - Some embodiments of an infusion pump system may include an occlusion sensor that can be used to detect when an occlusion exists in the fluid path between the medicine reservoir and the infusion site on the user's skin. Such an occlusion may occur, for example, when the fluid flow line (e.g., a cannula, infusion set tubing, or the like) is kinked. If the medicine dispensation path to the user is occluded, the user may receive no dosage or a lower dosage of the medicine. As such, the occlusion sensor can be used to indicate when the fluid is flowing or not flowing, thereby permitting the infusion pump system to communicate an alarm to the user if an occlusion exists.05-19-2011
20110125087INFUSION PUMP MODULE AND INFUSION SYSTEM - An infusion pump module includes a body case that includes an inflow channel for a liquid medicine; a first connecting flow channel; a second connecting flow channel; and an outflow channel; an auxiliary case joined to the body case and includes an auxiliary flow channel connected to the first and second connecting flow channel; a flow sensor that forms a measurement flow channel and measures a flow rate of the liquid medicine; an infusion pump that forms a transfer flow channel connected to the inflow channel and the first connecting flow channel, and discharges the liquid medicine by a piezoelectric element; a gasket that seals each connection portion between the inflow channel and the transfer flow channel and so on; and a cover case fastened to the body case to fix the gasket, the infusion pump, and the flow sensor to the body case.05-26-2011
20100305499SYSTEMS AND METHODS FOR THE IDENTIFICATION OF COMPOUNDS IN MEDICAL FLUIDS USING ADMITTANCE SPECTROSCOPY - Described herein are devices, systems, and methods for determining the composition of fluids, and particularly for describing the identity and concentration of one or more components of a medical fluid such as intravenous fluid. These devices, systems and methods take multiple complex admittance measurements from a fluid sample in order to identify the identity and the concentration of components of the fluid. The identity and concentration of all of the components of the solution may be simultaneously and rapidly determined. In some variations, additional measurement or sensing modalities may be used in addition to admittance spectroscopy, including optical, thermal, chemical, etc.12-02-2010
20100211002ELECTROMAGNETIC INFUSION PUMP WITH INTEGRAL FLOW MONITOR - An apparatus for pumping fluid through a flexible tubing is provided. The apparatus uses an electromagnet to activate upstream and downstream pinchers to control fluid flow. An armature is configured to compress the tubing, and in combination with the pinchers creates a fluid flow in the flexible tubing. Downstream occlusions in the tubing can be detected by monitoring for conditions wherein the armature does not close fully. Upstream occlusions in the tubing can be detected by monitoring for conditions wherein the armature does not open fully. A control module can be incorporated into the device for controlling the movement of the components and monitoring for occlusion conditions.08-19-2010
20100179472Dynamic Pressure Gauged Breast Pump - A breast pump system is disclosed for cyclically applying and simultaneously monitoring the negative pressure imposed while expressing milk from a breast. Structurally, the system includes a breast shield formed with a recess for receiving a breast. Further, a collection reservoir is connected to the recess of the breast shield for receiving milk therefrom. A pump is connected in fluid communication to the recess of the breast shield for applying the negative pressure to the breast. Also, a one-way valve is positioned between the recess and the collection reservoir to permit flow of milk into the collection reservoir while preserving ambient pressure in the collection reservoir. Importantly, a pressure gauge is connected between the pump and the breast shield for monitoring the operational pressure on the breast in real time. Further, a regulator manages the negative pressure applied by the pump in response to the monitored operational pressure.07-15-2010
20110137239ADVANCED STEP THERAPY DELIVERY FOR AN AMBULATORY INFUSION PUMP AND SYSTEM - Embodiments relate to systems, methods and devices for delivering a drug or other therapy to a patient with an ambulatory infusion pump configured to provide a series of tolerance-building steps leading up to a plateau delivery rate. The plateau delivery rate is maintained until the prescribed amount of drug or therapy fluid is delivered to the patient. Embodiments of the invention include providing the patient or other user with a mechanism to decrease, or step down, the therapy delivery rate if a tolerance was not achieved at a lower rate, and providing notifications prior to a step up in a dosage delivery rate.06-09-2011
20110137240HOLOGRAPHIC OCCLUSION DETECTION SYSTEM FOR INFUSION PUMPS - A holographic occlusion detection system has a white-light holographic label placed onto a sensing portion or surface of a pressure sensor connected to infusion tubing. The pressure sensor at the sensing portion can have a relatively thin wall section and may be wider and flatter than a normal cross section of the infusion tubing. The label is then illuminated by a polychromatic light source, and the light reflected off the holographic label is then received by a photodetector. Pressure changes within the tubing cause a change in orientation of the white-light holographic label, thereby resulting in a shift in the peak wavelength of the reflective light sensed by the photodetector. This shift in wavelength can then be calibrated to the swelling of the sensing portion so that pressure within the infusion line can be calculated. In another variation, monochromatic light is reflected off a holographic label, and pressure changes are detected by measuring the amplitude of the reflected light.06-09-2011
20110137241SYSTEM AND METHOD FOR DETECTING OCCLUSION USING FLOW SENSOR OUTPUT - A method of detecting an occlusion for an infusion therapy in one embodiment includes: monitoring an output signal from a flowrate sensor for a pulsatile fluid flow having a frequency range, the pulsatile flow being through a fluid pathway to a patient; acquiring a data set that includes the output signal as a function of time; filtering the data set with a noise rejection filter to produce a filtered data set; performing spectra analysis on the filtered data set to determine a strength of the output signal in a frequency domain; calculating a signal strength for the frequency range using the strength of the output signal in the frequency domain; and comparing the signal strength of the range to at least one threshold level to determine if an occlusion is present during the infusion therapy.06-09-2011
20110190694INFUSION PUMP ASSEMBLY - A wearable infusion pump assembly. The wearable infusion pump assembly includes a reservoir for receiving an infusible fluid and a fluid delivery system configured to deliver the infusible fluid from the reservoir to an external infusion set. The fluid delivery system includes a controller, a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the external infusion set, the pump assembly comprising a pump plunger, the pump plunger having distance of travel, the distance of travel having a starting position and an ending position, at least one optical sensor assembly for sensing the starting position and ending position of the pump plunger distance of travel and sending sensor output to the controller, and a first valve assembly configured to selectively isolate the pump assembly from the reservoir, wherein the controller receives the sensor output and determines the total displacement of the pump plunger.08-04-2011
20100280447MEDICAL PUMP WITH FIXED STROKE LENGTH - A method comprises measuring a volume of fluid delivered per pump stroke for each of a plurality of substantially identical medical pumps. The substantially identical medical pumps each have a fixed stroke length. The method further comprises: storing indications of the measured volumes on one or more data storage mediums; and for each of the plurality of substantially identical medical pumps, generating a separate therapy control program based on the indication of the measured volume associated with that one of the plurality of substantially identical medical pumps.11-04-2010
20100280446AUTOMATED CATHETER LENGTH DETERMINATION FOR IMPLANTABLE FLUID DELIVERY DEVICE - Examples disclosed herein include methods and systems for automatically estimating the length of an implantable catheter by measuring the pressure decay response to pumping fluid through the catheter. The decay time for a unit fluid pressure pulse generated within the catheter is proportional to the length of the catheter, i.e. as the length of the catheter increases so does the decay time. The catheter length can therefore be estimated based on, e.g., the decay time of the pressure pulse. The estimated catheter length can also be analyzed to determine if it is representative of the actual length of the catheter, or, e.g., is affected by one or more catheter malfunctions including cuts and occlusions. Systems for automatically estimating catheter length include an implantable catheter, a pumping mechanism, a pressure sensor placed in a location to measure pressure within the catheter, and a processor that calculates the length of the catheter from a pressure pulse measured while fluid is delivered through the catheter.11-04-2010
20090043253SMART MEDICAL COMPLIANCE METHOD AND SYSTEM - The smart medical compliance method and system invention prevents adverse drug events through the use of protocols that uniquely identifies the patient, care provider, medication and/or medical device that is to be used with radio frequency identification (RFID). The RFID devices incorporate fail-safe locks or indicators that prevent the inadvertent or unauthorized use of medication, medical devices, or medical supplies. The system corroborates, patient, the care provider, the medical device, and the manner in which it is to be used, and authorizes the action to be undertaken through an interface on a personal digital assistant PDA over a wireless communication channel. The system also timestamps events in the equivalent of a medical black box such that records may be kept to further improve patient care and allow an analysis of procedures. In addition, the system includes interfaces to medication preparation and safe disposal. A number of smart devices that interact with the system are also described. These include smart medical containers, smart clamps, smart valves, smart syringes, smart couplers, smart pipettes, and a host of other point of care devices.02-12-2009
20110306927DRUG INJECTION DEVICE - A drug injection device (12-15-2011
20120004602CONNECTION AND ALIGNMENT DETECTION SYSTEMS AND METHODS - A medical device includes a first housing portion (FHP) and a second housing portion (SHP) configured to be to be movable relative to each other from a first position to operatively engage at a second position to couple at least one of a drive device and a needle-inserting device supported by one of the FHP and the SHP to a reservoir supported by the other of the FHP and the SHP. Electronic circuitry configured to detect at least one of a first magnetic interaction between a magnet and at least one of a first magnetically attractive material and a first magnet-responsive device and a second magnetic interaction between the magnet and at least one of a second magnetically attractive material and a second magnet-responsive device, and to provide a signal or a change in state in response to detecting at least one of the interactions.01-05-2012
20120310153METHOD AND APPARATUS FOR DETECTING OCCLUSIONS IN AN AMBULATORY INFUSION PUMP - An improved pump, reservoir and reservoir piston are provided for controlled delivery of fluids. A motor is operably coupled to a drive member, such as a drive screw, which is adapted to advance a plunger slide in response to operation of the motor. The plunger slide is removably coupled to the piston. A method, system, and an article of manufacture for automatically detecting an occlusion in a medication infusion pump is provided. The electrical current to an infusion pump is measured. Based on a series of measurements of one or more variables, the infusion pump detects whether there is an occlusion in the system.12-06-2012
20110166512DELIVERY DEVICE FOR USE WITH A THERAPEUTIC DRUG - A compact and one time use, self-administration device (07-07-2011
20120022444Method and Apparatus to Remove Substances from Vessels of the Heart and Other Parts of the Body to Minimize or Avoid Renal or Other Harm or Dysfunction - To accomplish isolation and removal of a substance from a vasculature, a catheter is employed to occlude a vessel of the vasculature. The substance is thus isolated in the vasculature and can be removed. In this way, the substance is removed before entering other parts of the circulatory system. This method is applicable to removal of contrast from the coronary sinus shortly after injection of the coronary arteries with the contrast. The method substantially minimizes or avoids renal dysfunction caused by angiographic procedures in which contrast must be injected. Such angiographic procedures are often performed during intervention procedures. This method substantially prevents circulation of the contrast to the kidneys where it could otherwise cause renal dysfunction or failure. The apparatus for implementation of the method is also disclosed.01-26-2012
20120059313FLOW CONTROL VALVES FOR LEAKAGE DETECTION, FREE-FLOW PREVENTION AND OCCLUSION DETECTION - An injection device for injecting a fluid into an organism, in particular a human or animal body, which can comprise a fluid providing section including a container for storing the fluid and a supply means for supplying the fluid. The fluid injecting section for injecting the fluid provided by the fluid providing section into the organism includes a catheter means and is characterized by the fluid injecting section being provided with a pressure recognition arrangement which can be located close to and/or in the catheter means for detecting a pressure increase and/or a pressure loss.03-08-2012
20090005730SYRINGE PUMP HAVING A PISTON BRAKE - The syringe pump comprises a receiving position for a syringe. The piston plate of the syringe is moved by a drive head which is fastened to a drive rod. For locking the piston rod prior to fixing the piston plate in the drive head, a braking element is provided on a syringe holding head. The syringe holding head further serves for determining the respective syringe size. After placing the syringe holding head against a syringe cylinder, the brake element is actuated to temporarily engage the piston rod and fix it relatively to the syringe cylinder.01-01-2009
20100241065Infusion Device with Base Portion and Durable Portion - A delivery device includes a durable housing portion and a separable disposable portion that selectively engage and disengage from each other. The disposable housing portion secures to the patient and may be disposed of after it has been in use for a prescribed period. Components that normally come into contact with a patient or with infusion media are supported by the disposable housing portion for disposal after the prescribed use, while the durable housing portion supports other components such as electronics for controlling delivery of infusion media from the reservoir and a drive device and drive linkage.09-23-2010
20120316492MICROMECHANIC PASSIVE FLOW REGULATOR - The invention concerns a flow regulator, made of a stack of 3 plates, respectively a top plate including a flexible membrane (12-13-2012
20090131863Volume Measurement Using Gas Laws - A system and method for measuring fluid volume and changes in fluid volume over time, using a simple, low cost architecture is described.05-21-2009
20090131862METHOD AND DEVICE FOR ACCURATE DISPENSING OF RADIOACTIVITY - A device and a method for accurate and remote dispensing of a radioactive liquid are disclosed. A source of a radioactive liquid (05-21-2009
20120215163SENSING SYSTEMS AND METHODS - A fluidic media detection system for detecting a presence of fluidic media includes a first housing portion adapted to be carried by a user; a second housing portion configured to be selectively operatively engaged with and disengaged from the first housing portion, the second housing portion for supporting a reservoir having an interior volume for containing fluidic media; a fluid conduit supported by one of the first housing portion and the second housing portion for providing fluid communication between the reservoir and the user when the first housing portion and the second housing portion are operatively engaged; and at least one interactive element, positioned near a portion of the fluid conduit, that interacts with the fluidic media when the fluidic media is present in the fluid conduit.08-23-2012
20100174231METHOD FOR PHYSIOLOGIC CONTROL OF A CONTINUOUS FLOW TOTAL ARTIFICIAL HEART - A method is provided of controlling a pump including a electrical motor coupled to a rotor which carries first and second impellers at opposite ends thereof. The method includes: (a) driving the rotor using the motor, so as to circulate fluid from the first impeller through a first fluid circuit, the second impeller, a second fluid circuit, and back to the first impeller; (b) determining a resistance of the first fluid circuit, based on a first motor parameter; (c) determining a flow rate through the first fluid circuit based on a second motor parameter; and (d) varying at least one operational parameter of the pump so as to maintain a predetermined relationship between the flow rate and the resistance of the first fluid circuit.07-08-2010
20120083730Variable Volume, Shape Memory Actuated Insulin Dispensing Pump - A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.04-05-2012
20110190693COMPUTER CONTROLLED ELECTRIC SYRINGE - A computer controlled electric syringe includes: a piston unit including a piston being configured to press and move a rubber plug of a cartridge by a second end to discharge a medicinal solution from a cartridge through an injection needle; a ball screw having a screw shaft and a nut portion that is screwed into the screw shaft, the screw shaft being loosely inserted into the hollow portion of the piston through the opening, the nut portion being coupled to the piston; a screw shaft supporting portion rotatably supporting the screw shaft of the ball screw; a rotation preventing portion configured to prevent the nut portion of the ball screw from being rotated; and a piston supporting portion supporting the piston to be movable in an axial direction of the screw shaft along with the nut portion by the rotation of the screw shaft.08-04-2011
20120253270VARIABLE FLOW INFUSION PUMP SYSTEM - An implantable infusion pump system is disclosed. The pump system preferably includes an implantable pump and a programmable module. The module may provide for varying flow rates of fluid being dispensed from the pump or may provide for a constant flow rate of such fluid. In the case of varying flow rate capabilities, the module preferably includes one or more sensors to determine information relating to the flow rate, electronics for analyzing the flow rate information, and a mechanism for physically altering the flow rate. In certain embodiments, the module includes a hermetically sealed housing. Methods of dispensing a medicament to a patient utilizing such a system are also disclosed, as are variations of the pump system.10-04-2012
20120220929Injection Arrangement - The invention relates to a pump unit (08-30-2012
20090018495User Interface For Delivery System Providing Shortcut Navigation - The present invention provides a user input device for operating a drug delivery system is provided, comprising display means adapted to simultaneously display a plurality of menu items, display means adapted to display at least one user settable drug delivery parameter, 5 and user input means allowing a user to directly select each of the simultaneously displayed menu items, wherein the user input means comprises a keyboard comprising at least one pair of user input keys, each pair allowing a user to bi-directionally set a user settable drug delivery parameter when user controllable settings are displayed. By this arrangement a compact and economical yet easy to use user interface is provided.01-15-2009
20090018494CHEMICAL LIQUID INJECTION SYSTEM - The present invention provides a chemical liquid injection system in which a chemical liquid injector can detect whether or not the injection of a liquid from a liquid syringe into a patient is inappropriate for a personal reason such as the development of a side effect although the liquid is of an appropriate type for the injection system, and the chemical liquid injector can issue an alarm to notify the inappropriate injection. Chemical liquid injector 01-15-2009
20120238949AUTOMATED CATHETER LENGTH DETERMINATION FOR IMPLANTABLE FLUID DELIVERY DEVICE - Disclosed are methods and systems for automatically estimating the length of an implantable catheter by measuring the pressure decay response to pumping fluid through the catheter. The decay time for a unit fluid pressure pulse generated within the catheter is proportional to the catheter length, i.e. as the catheter length increases so does the decay time. The catheter length can therefore be estimated based on, e.g., the decay time of the pressure pulse. The estimated catheter length can also be analyzed to determine if it is representative of the actual catheter length, or, e.g., is affected by one or more catheter malfunctions including cuts and occlusions. Systems for automatically estimating the catheter length include an implantable catheter, a pumping mechanism, a pressure sensor configured to measure pressure within the catheter, and a processor that calculates the catheter length from a pressure pulse measured while delivering fluid through the catheter.09-20-2012
20120265128Continuously Conveying Infusion Pump - An infusion pump for continuously conveying a fluid includes an inlet, an outlet, a first piston movably supported in a first chamber connected to the inlet, a second piston movably supported in a second chamber connected to the outlet, and a connecting channel connecting the first chamber to the second chamber. At least one control element, in a first position, connects the inlet to the first chamber and, in a second position, connects the first chamber to the second chamber. A controller acts upon the first piston, the second piston, and the control element so that, when the control element is set in the first position, the first chamber is filled while the second chamber is drained, and when in the second position, the first chamber is drained and the second chamber is filled, wherein a constant discharge at the outlet is maintained at a predefined flow rate.10-18-2012
20120265127OCCLUSION RECOGNITION IN AN ADMINISTERING APPARATUS - A device and a method for controlling a medical administering apparatus wherein an electrical motor of the medical administering apparatus is activated during defined discharging events, including short discharging events, and the motor is controlled as per a predefined speed profile with a plurality of regions (P10-18-2012
20110046548BLOOD SUGAR LEVEL CONTROL SYSTEM - The present invention relates to a blood sugar level control system equipped with an insulin dispensing device 02-24-2011
20120323170System for Programming Medical Pumps with Reduced-Error - Medical pumps may obtain programming data from a database through the use of a remote query process which allows the individual pump to flexibly request data from existing hospital databases, to identify the necessary information in those databases, and to convert that data for use without the need for manual programming or a centralized pump control system.12-20-2012
20100198145PUMP SET WITH SAFETY INTERLOCK - A safety interlock for use in a medical device includes a central tubular portion defining a fluid passage for passing fluid through the safety interlock. An outer ring portion is adapted for mounting on the medical device. The outer ring portion is formed of a light transmitting material and includes at least one interposing surface. A connector portion connects the central tubular portion to the outer ring portion so that the outer ring portion is spaced radially outwardly from the central tubular portion in opposed relation with at least a portion of the central tubular portion. The safety interlock device is adapted for mounting in medical device in a path of electromagnetic radiation from a source of electromagnetic radiation for reflecting the electromagnetic radiation to a electromagnetic radiation detector when properly loaded on the medical device.08-05-2010
20080319383Needle-Free Injection Device - A fluid injecting device (12-25-2008
20110160655CONNECTION AND ALIGNMENT SYSTEMS AND METHODS - A delivery system for delivering fluidic media to a user having a second housing portion configured to be selectively operatively engaged with and disengaged from a first housing portion, the first housing portion and the second housing portion configured to be slidable relative to each other to operatively engage each other; and a fluid connector supported by one the housing portions in a position to engage a reservoir supported by an other of the housing portions in a case where the first housing portion and the second housing portion are slid relative to each other to operatively engage each other.06-30-2011
20110160654ALIGNMENT SYSTEMS AND METHODS - A delivery system for delivering fluidic media may include a second housing configured to be selectively operatively engaged with and disengaged from a first housing portion adapted to be carried by a user. One of the housing portions may support a reservoir for containing fluidic media and a plunger head moveable within the reservoir. A drive device may be supported by the other of the housing portions for coupling with the reservoir upon the housing portions being operatively engaged. A first interactive element may be supported on the first housing portion for interacting with a second interactive element supported on the second housing portion. Circuitry may be configured to detect an interaction between the interactive elements and configured to provide a signal or a change in state in response to the housing portions being operatively engaged and an interaction between the interactive elements being detected.06-30-2011
20080243058FLUID DELIVERY SYSTEM AND FLOW CONTROL THEREFOR - A fluid delivery system having a closed-loop control process for delivering a medical fluid to a patient. A fluid infusion system includes a pump for delivering a fluid to a patient via an administration tube. A flow sensor associated with the administration tube provides an indication of the actual flow rate of fluid in the administration tube. Such a flow sensor may comprise a positive displacement flow sensor constructed using micro-fabrication and/or micro-molding techniques. A reader reads the actual flow rate signal and provides an indication to a controller for controlling the pump. The flow rate information can also be used for providing status information, such as the existence of a blockage in the fluid delivery system.10-02-2008
20130172811Systems and Methods of Delivering a Dilated Slurry to a Patient - A system for delivering a slurry to a patient includes a fluid, a material that is non-dissolvable or immiscible in the fluid, thereby forming a slurry, a container adapted to contain the slurry and a supernate of the slurry, the container defining an outlet through which the slurry is delivered to the patient, a fluidizing system associated with the container, a pressurizing mechanism adapted to create a pressure to cause the slurry contained within the container to flow for delivery to the patient and a control unit in communication with and adapted to control the fluidizing system and the pressurizing mechanism. The fluidizing system is adapted to effect dilation of the slurry while maintaining at least a portion of the supernate.07-04-2013
20130172809MULTIPLE RESERVOIR PROGRAMMABLE PUMP - Different embodiment programmable pumps including multiple reservoirs are disclosed, as are methods of utilizing same. The pumps generally include at least two reservoirs and means for dispensing active substances housed in each at varying flow rates.07-04-2013
20130178792ACCURATE FLOW CONTROL IN DRUG PUMP DEVICES - The accuracy of drug delivery with drug pump devices may be improved by a combination of pump operation at high flow resistances and pump pressures, pressure-relief mechanisms, and sensor-based feedback for pump control.07-11-2013
20080221513Method for Ensuring Constant Speed of a Motor in an Injection Device - The present invention relates to a method for ensuring a constant target speed of a battery driven electrical motor, the battery driven electrical motor being adapted to move a piston rod in an injection device so as to inject a set dose of medicine from the injection device, the method comprising the steps of setting a first target speed to be reached by the motor, determining whether the first target speed can be reached, and, if the first target speed can be reached, maintaining the first target speed until a set dose of medicine has been injected from the injection device, or if the first target speed cannot been reached, setting a second target speed.09-11-2008
20100069830Methods and Devices for Programmable Delivery of Microdoses of Liquid Drugs and Other Fluids - Methods and compact automatic devices are provided for delivery of micro doses of liquid drugs to a patient. Devices have a fluid supply reservoir comprising an expandable indicator supplied with a sensor, a mechanism forcing the fluid to squeeze predetermined dose out, and a processor treating sensor's signals accordingly to preprogrammed algorithm. The method comprises steps: (a) initiating the delivery cycle, (b) acquiring sensor's signals, (c) treating signals in order to integrate an intensity of output flow and to determine when the squeezing-out force must be terminated, (d) terminating the cycle accordingly to processor's command. Self-testing of devices occurs while each fluid delivery cycle. Their high dosing precision exceeds that of known analogs about two orders of magnitude. A possibility to use low cost disposable exit port assembly and/or easy replaceable factory pre-filled cartridges is an additional advantage eliminating risks of overdosing, air bubbles, and/or compromised sterility.03-18-2010
20120253271DRIP CHAMBER AND FLUID LEVEL SENSING MECHANISM FOR A FLUID DELIVERY SYSTEM - The fluid injector system includes a source of injection fluid, a pump device, and a fluid path set in fluid connection with the source of injection fluid and the pump device. The fluid path set includes a drip chamber including an elongated body and a raised projection. A fluid level sensing mechanism is operably associated with a fluid control device, and includes a drip chamber support for supporting the drip chamber body and a fluid level sensor associated with the drip chamber support. The drip chamber support is adapted to support the drip chamber body such that the raised projection is in operational contact with the fluid level sensor and the fluid level sensing mechanism is operable to transmit ultrasonic or light energy through the raised projection to be sensed by the fluid level sensor for sensing the injection fluid level in the drip chamber.10-04-2012
20130172810PROGRAMMABLE IMPLANTABLE PUMP DESIGN - A programmable implantable pump is disclosed. The pump includes an implantable pump and a hermetically sealed module. The module provides for varying flow rates of fluid being dispensed from the pump or may provide for a constant flow rate of such fluid. In the case of varying flow rate capabilities, the module preferably includes one or more sensors to determine information relating to the pressure of the fluid, electronics for analyzing the pressure information and determining the flow rate of the fluid, and a mechanism for physically altering the flow rate. Methods of dispensing a medicament to a patient utilizing such a system are also disclosed, as are variations of the pump system.07-04-2013
20130138037MEDICAL FLUID MACHINE WITH SUPPLY AUTOCONNECTION - A medical fluid system including: fluid containers and a tube extending from same, each tube including a cap; a pumping cassette including port spikes; a medical fluid machine including: occluders; a shuttle configured to receive the tubes, wherein each tube is associated with one of the occluders; a driving mechanism translating the shuttle; a cap removal device between the cassette and the shuttle; and a control unit programmed to cause: (i) the occluders to pinch their tubes, (ii) cause the driving mechanism to translate the shuttle towards the fluid pumping cassette, the cap removal device engaging the tube caps, (iii) the driving mechanism to translate the shuttle away from the fluid pumping cassette and cap removal device, pulling the tube caps off of the tubes, and (iv) the driving mechanism to translate the shuttle back towards the fluid pumping cassette for the port spikes to spike the occluded tubes.05-30-2013
20130096494DEVICES, SYSTEMS, AND METHODS FOR AUTO-RETROPERFUSION OF THE CEREBRAL VENOUS SYSTEM - Devices, systems, and methods for auto-retroperfusion of the cerebral venous system. In an exemplary embodiment of a catheter for controlling blood perfusion pressure of the present disclosure, the catheter comprises a body having a proximal open end, a distal end, a lumen extending between the proximal open end and the distal end, and a plurality of orifices disposed thereon, each of the orifices in fluid communication with the lumen, at least one expandable balloon, each of the at least one expandable balloons coupled with the body, having an interior that is in fluid communication with the lumen and adapted to move between an expanded configuration and a deflated configuration, and at least one sensor coupled with the distal end of the body, each of the at least one sensors adapted to gather data relating to a fluid flowing through the lumen, wherein the catheter is configured to be coupled to a flow unit for regulating the flow and pressure of a fluid.04-18-2013
20080200870SYSTEM FOR GUIDING A USER DURING PROGRAMMING OF A MEDICAL DEVICE - A medical pump that provides advance guidance to a user regarding existence and limits of a valid input range for a pump programming parameter includes an input device for entering a value of a pump programming parameter, a memory for storing constraints related to the pump programming parameter, and a processor in communication with the memory and the input device. The processor dynamically utilizes the constraints to determine and generate a signal indicating whether a valid input range exists for a to-be-entered value of the pump programming parameter and notifies the user.08-21-2008
20100286602DISPOSABLE INFUSION DEVICE WITH RESETTABLE LAST DOSE LOCK-OUT - A wearable infusion device comprises a reservoir that holds a liquid medicament, an outlet that delivers the liquid medicament to a patient, and a pump that displaces a volume of the liquid medicament to the outlet when actuated. The device further includes a lock-out that disables actuation of the device responsive to a predetermined condition of the device. The lock-out is resettable.11-11-2010
20110275987PISTON-DRIVEN DRUG PUMP DEVICES - In piston-pump drug-delivery devices, changes in friction between the piston and vial in which it moves may be reduced and/or compensated for by suitable surface coatings and/or feedback control.11-10-2011
20120283632Infusion Control Device - The present invention relates to an infusion control device designed to secure the infusion control device to a drip chamber attached to an infusion tube. The infusion control device comprises a light indicator and a microprocessor. The microprocessor determines the amount of fluid in an infusion bottle providing fluid to the transparent drip chamber, and provides instructions to the light indicator to illuminate the infusion bottle when the amount of fluid in the infusion bottle is less than a predetermined first limit.11-08-2012
20130184641ACCURATE FLOW CONTROL IN DRUG PUMP DEVICES - The accuracy of drug delivery with drug pump devices may be improved by a combination of pump operation at high flow resistances and pump pressures, pressure-relief mechanisms, and sensor-based feedback for pump control.07-18-2013
20130184640ACCURATE FLOW CONTROL IN DRUG PUMP DEVICES - The accuracy of drug delivery with drug pump devices may be improved by a combination of pump operation at high flow resistances and pump pressures, pressure-relief mechanisms, and sensor-based feedback for pump control.07-18-2013
20110313351INFUSION PUMP APPARATUS, METHOD AND SYSTEM - An infusion pump system is disclosed. The system includes a syringe having a plunger within the syringe barrel, the syringe having an exit end, at least one temperature determination device adjacent to the syringe, at least one device to determine the distance the plunger has moved with respect to the syringe barrel, and a pump processor in communication with the at least one temperature determination device and the at least one optical sensor, wherein when the controller determines a change in temperature and a corresponding plunger movement, the controller increases or decreases a preprogrammed basal rate of the infusion pump by a predetermined amount for a predetermined time.12-22-2011
20130190683CONNECTION AND ALIGNMENT DETECTION SYSTEMS AND METHODS - A medical device includes a first housing portion (FHP) and a second housing portion (SHP) configured to be to be movable relative to each other from a first position to operatively engage at a second position to couple at least one of a drive device and a needle-inserting device supported by one of the FHP and the SHP to a reservoir supported by the other of the FHP and the SHP. Electronic circuitry configured to detect at least one of a first magnetic interaction between a magnet and at least one of a first magnetically attractive material and a first magnet-responsive device and a second magnetic interaction between the magnet and at least one of a second magnetically attractive material and a second magnet-responsive device, and to provide a signal or a change in state in response to detecting at least one of the interactions.07-25-2013
20120071819MEDICAMENT DELIVERY DEVICES - A medicament delivery device comprises a housing, a holder within the housing for receiving a medicament cartridge, a piston rod for driving a bung of the medicament cartridge, a drive mechanism including a motor for providing an output drive to the piston rod for delivering the medicament and control means for controlling operation of the device. The device is additionally provided with a bung sensor for sensing when the piston rod is in contact with the bung and the control means is operative for advancing the drive of the piston rod towards the bung.03-22-2012
20130211323Liquid Infusion Apparatus - The present invention relates to a liquid infusion apparatus, including: a finger module provided in a main body such that the finger module can elastically move backward from a liquid delivery tube; a tube clamp, in which two clamp bodies spaced apart from each other approach each other by means of restoring force of an elastic member upon the opening of a door during infusion, so as to compress and block the liquid delivery tube; and a tube blockage detection device which detects whether the liquid delivery tube is blocked by a cause, for example, when the outlet-side portion of the liquid delivery tube, which delivers medicinal liquid pumped by a liquid pump during infusion, is bent.08-15-2013

Patent applications in class Sensor controls pump, motor, or pressure driven means