| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 604152000 | Reciprocating piston type | 87 |
| 20080255517 | DUAL MICROCONTROLLER-BASED LIQUID INFUSION SYSTEM - A highly reliable and robust functioning liquid infusion system for use in biomedical applications comprises a dual microcontroller system where the first microcontroller is configured to administer the liquid and the second microcontroller is configured to monitor the accurate functioning of the system and various performance parameters such as flow rate of liquid, presence of leaks or blocks in the liquid passage, level of drug in the cartridge and battery condition. The liquid injection portion comprises a cylindrical airtight liquid holder or drug cartridge with a movable internal piston that is in contact with a movable stem, and a micromotor, which controls the drug delivery. The system is programmable with a dosing system stored into the driver/monitor microcontrollers. A low power LCD module is used to display the operating parameters with multiple language interface and alarm conditions, if any. The system is also equipped with a system of sensors that trigger an alarm to indicate abnormal conditions. | 10-16-2008 |
| 20090048562 | Ambulatory Infusion Devices And Piston Pumps For Use With Same - An ambulatory infusion device including a fluid transfer device with a piston bore and a piston. The piston bore surface and the piston surface are configured such that they will wear at a very slow rate when cycled in the absence of a lubricant other than the infusible substance. | 02-19-2009 |
| 20090105650 | DRUG DELIVERY PUMP DRIVE USING LINEAR PIEZOELECTRIC MOTOR - A drug delivery pump drive which uses a linear piezoelectric motor to advance a syringe piston to deliver a liquid drug and a method thereof are disclosed. The pump drive, provided in a drug delivery pump, provides silent operation and very low energy consumption compared to electric motor-based drives. The small size of the motor helps also to reduce overall size of the pump drive and the resulting drug deliver pump. | 04-23-2009 |
| 20090177160 | Fluid Delivery Device with Autocalibration - A micro fluid delivery device is particularly useful in medical applications. The device may be worn or carried by the user and may deliver drugs or other medicaments to the user or patient. The device has a control system that accepts input from the user and controls all aspects of operation of the device. The control system measures the output of the pump and adjusts the output of the pump to achieve the desired dosage rate and size. This eliminates differences from pump to pump that result from inevitable variations in the manufacturing of such small scale affordable devices. | 07-09-2009 |
| 20090259183 | RESERVOIR BARRIER LAYER SYSTEMS AND METHODS - A reservoir and a plunger head contained within may be configured to move relative to each other in response to at least one of the reservoir being detached from a base, the base and/or the reservoir being removed from a packaging, and the base and/or the reservoir being moved relative to each other. A first layer may be configured to define a reservoir, the first layer, which may be made of a material compatible with fluidic media in the reservoir, may be adjacent a second layer for inhibiting a diffusion through the second layer. A first layer that may be less than 0.3 mm and made of a cyclic olefin copolymer may be configured to define a reservoir. A reservoir may be defined by a wall made of a cyclic olefin copolymer and the wall may be for substantially preventing light from passing through the reservoir. | 10-15-2009 |
| 20090326458 | RESERVOIR PLUNGER HEAD SYSTEMS AND METHODS - A plunger head moveable in an axial direction within a reservoir having an interior volume for containing fluidic media may have a first portion in contact with fluidic media when fluidic media is in the interior volume of the reservoir, the first portion comprising a first material compatible with fluidic media in the interior volume of the reservoir, a second portion located on an opposite side of the plunger head from the interior volume of the reservoir, the second portion connectable to a plunger arm, and a third portion located between the first portion and the second portion of the plunger head, at least one of the first portion, second portion, and the third portion is made of a material that comprises one of a cyclic olefin copolymer and a cyclic olefin polymer. | 12-31-2009 |
| 20100049130 | DEVICE AND METHOD EMPLOYING SHAPE MEMORY ALLOY - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 02-25-2010 |
| 20100049131 | DEVICE AND METHOD EMPLOYING SHAPE MEMORY ALLOY - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 02-25-2010 |
| 20100049132 | DEVICE AND METHOD EMPLOYING SHAPE MEMORY ALLOY - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 02-25-2010 |
| 20100049133 | DEVICE AND METHOD EMPLOYING SHAPE MEMORY ALLOY - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 02-25-2010 |
| 20100100041 | Device and Method Employing Shape Memory Alloy - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 04-22-2010 |
| 20100100042 | Device and Method Employing Shape Memory Alloy - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 04-22-2010 |
| 20100114029 | Device and Method Employing Shape Memory Alloy - A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system. | 05-06-2010 |
| 20100137802 | METHODS AND APPRATUS FOR MONITORING ROTATION OF AN INFUSION PUMP DRIVING MECHANISM - An infusion system, method and device for delivering therapeutic fluid to the body of a patient are disclosed. The device includes a dispensing unit having a peristaltic pump for dispensing therapeutic fluid to the body of the patient. The peristaltic pump includes a driving mechanism. The device further includes a monitoring mechanism ( | 06-03-2010 |
| 20100286613 | Fluid Transfer Devices With Fluid Bypass And Ambulatory Infusion Devices Including Same - Fluid transfer devices for use in, for example, ambulatory infusion devices and infusions devices including fluid transfer devices. | 11-11-2010 |
| 20100286614 | In-Line Fluid Transfer Devices And Ambulatory Infusion Devices Including The Same - Fluid transfer devices for use in, for example, ambulatory infusion devices and infusions devices including fluid transfer devices. | 11-11-2010 |
| 20100305508 | INTRAVENOUS PISTON PUMP DISPOSABLE & MECHANISM - An apparatus for delivery of fluids to a patient includes an inlet tube and an outlet tube connected to each other at an angular joint. A rotary valve and a piston are fitted to the angular joint forming a chamber. The rotary valve is provided with a priming channel notch and a pumping notch. For priming operation with the fluid delivery apparatus, a user sets the rotary valve to a priming position. During pumping operation, the rotary valve rotates in coordination with the piston to transfer a quantum of fluid from the inlet tube to the outlet tube via the chamber. A second piston is optionally provided on the outlet tube for smoothing out flow rate pulsations. | 12-02-2010 |
| 20110004160 | Devices and Methods for Powering a Medical Device - Devices and methods for powering a medical device for sustained delivery of fluids or continuous monitoring of body analyte. The devices may comprise a pumping mechanism, a driving mechanism for activating the pumping mechanism to dispense fluid, and a power source coupled to the driving mechanism and having an energy storage cell for providing a pulsed power to the driving mechanism. The methods may be implemented by activating the driving mechanism using pulsed energy in the form of at least one pulse train pattern accumulated in and discharged from an energy storage component. | 01-06-2011 |
| 20110009825 | RESERVOIR FILLING SYSTEMS AND METHODS - A reservoir may be filled with fluidic media in a first type of environment, a plunger head may be placed within the reservoir in the first type of environment, and a casing that may be configured to envelop at least a portion of a plunger arm operatively connected to the plunger head may be attached adjacent to at least a portion of the reservoir in a second type of environment. A reservoir may be provided having a first and second portion for respectively containing fluidic media, the second portion may be adapted to be removable, the reservoir may be selectively filled with a first volume or a second volume of fluidic media, a seal member may be placed in the reservoir, and the second portion may be removed in a case where the reservoir contains the first volume of fluidic media. | 01-13-2011 |
| 20110028902 | SYSTEM AND METHOD FOR PUMPING INTRAVENOUS FLUID - An intravenous fluid pump (IV) contains a disposable part including a fluid chamber having a resilient top membrane and a non-disposable part including a piston abutting a resilient membrane and a vacuum chamber fitted on top of the resilient top membrane. An external pump is used to create vacuum in the vacuum chamber, resulting in the resilient top membrane being held taut. The flow rate through the pump is relatively independent of changes in the pressure of IV fluid on the upstream and the downstream due to changes in the relative elevation of the fluid reservoir and the patient with respect to the fluid pump. | 02-03-2011 |
| 20110190704 | ONE PIECE SEALING RESERVOIR FOR AN INSULIN INFUSION PUMP - A novel one-piece fluid reservoir assembly for use in conjunction with an insulin infusion pump. The single piece fluid reservoir assembly includes a barrel body, a male luer fitting integral with the barrel body, a sealing surface integral with the barrel body, the sealing surface for sealing against the pump housing when the fluid reservoir assembly is inserted into the pump housing. Further, the barrel includes, as part of the one-piece fluid reservoir assembly, threads for engagement with threads on an opening in the fluid pump so that the fluid assembly can be inserted into the fluid pump, engage the threads and rotation therewith will locate the fluid reservoir assembly within the pump. Thereafter, a piston in the pump may be incrementally advanced to act upon a plunger in the barrel assembly to force a fluid within the barrel assembly through the male luer fitting and through a conduit engaged therewith to a remote infusion set. | 08-04-2011 |
| 20110190705 | Dispensing Fluid from an Infusion Pump System - Some embodiments of an infusion pump device may include a drive system that accurately and incrementally dispenses fluid from the pump device in a controlled manner. Particular embodiments of the drive system may include a rotational motor that is coupled to a string member, which is used to adjust a pawl relative to a ratchet body. In such circumstances, the drive system can provide a reliable and compact infusion pump device that accurately dispenses the desired volume of fluid. | 08-04-2011 |
| 20110224615 | Fluid Delivery Device with Autocalibration - A micro fluid delivery device is particularly useful in medical applications. The device may be worn or carried by the user and may deliver drugs or other medicaments to the user or patient. The device has a control system that accepts input from the user and controls all aspects of operation of the device. The control system measures the output of the pump and adjusts the output of the pump to achieve the desired dosage rate and size. This eliminates differences from pump to pump that result from inevitable variations in the manufacturing of such small scale affordable devices. | 09-15-2011 |
| 20110238015 | Injector having a cylinder-piston unit and permanently sterile active piston skirt - A unidirectional injector having at least one cylinder-piston unit, the piston thereof being displaceable between two stroke end positions relative to the cylinder, wherein the cylinder-piston unit comprises at least one sealing system sealing a compensating space from the surroundings. To this end the piston is provided at its front surface with an axial annular groove for accommodating a seal ring or a permanently elastic seal material, that the cylinder is provided with a first seal element and a second seal element which are spaced by at least a piston stroke, or that the piston is provided with the first seal element and the second seal element which are spaced by at least a piston stroke, or the cylinder carries the first seal element and the piston carries the second seal element which is displaced with respect to the first by the piston stroke. | 09-29-2011 |
| 20110245773 | Operating an Infusion Pump System - Some embodiments of a medical infusion pump system include a pump device and a removable controller device. When the pump device and the removable controller device are removably attached to one another, the components may provide a portable infusion pump unit to dispense medicine to a user. In particular embodiments, the removable controller device includes a user interface to readily provide information, for example, about the operation of the pump. | 10-06-2011 |
| 20120078181 | INFUSION 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 |
| 20120078182 | INFUSION 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 |
| 20120078183 | INFUSION 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 |
| 20120078184 | INFUSION 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 |
| 20120078185 | INFUSION 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 |
| 20120130312 | Dispensing Fluid from an Infusion Pump System - Some embodiments of a medical infusion pump system include a pump device having a flexible pushrod that can adjust from a curved configuration to a generally straight configuration. The flexible pushrod is part of a drive system of the pump device so that the flexible pushrod can be controllably and incrementally advanced toward a medicine reservoir to incrementally dispense the medicine therein. In particular embodiments, the flexible pushrod may comprise an anti-rotation mechanism, an anti-torsion mechanism, or a combination thereof. | 05-24-2012 |
| 20120184907 | Infusion Pumps - Ambulatory infusion pumps, pump assemblies, and baseplate assemblies, including cartridges, baseplates, cannulas, inserters, and related components and batteries therefor, as well as component combinations and related methods. | 07-19-2012 |
| 20120209196 | INFUSION PUMP ASSEMBLY - An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw. | 08-16-2012 |
| 20120209197 | INFUSION PUMP ASSEMBLY - An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw. | 08-16-2012 |
| 20120209198 | PATCH-SIZED FLUID DELIVERY SYSTEMS AND METHODS - A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device. | 08-16-2012 |
| 20120245525 | SYRINGE PUMP RAPID OCCLUSION DETECTION SYSTEM - An apparatus and method for detecting an occlusion in a downstream fluid line of a medical pump in relation to increased pressure in the downstream fluid line between the beginning and the end of each interval of a series of intervals of operation of the pump even if one or more intervals between the first and last intervals does not reflect such an increase in pressure in the downstream fluid line. | 09-27-2012 |
| 20130006183 | CYLINDER PUMP - The present invention relates to a simple and small cylinder pump, which can stably supply a medical fluid regardless of the installed height of a liquid container or a blood bag. The cylinder pump includes an upper casing, and a lower casing coupled to the upper casing. An upper rotation member is rotatably inserted in the upper casing. A lower rotation member slidingly contacting the upper rotation member is rotatably inserted in the lower casing. An inner wall of the upper casing, a lower outer surface of the upper rotation member, an inner wall of the lower casing, and an upper outer surface of the rotation member constitute a cylinder having a single-tube shape. Plungers are installed on the upper rotation member and on the lower rotation member, respectively, and rotate in the cylinder, the ends of which are closed. | 01-03-2013 |
| 20130046240 | BEPOTASTINE COMPOSITIONS - Novel compositions including bepotastine besilate are provided such as sorbitol-free compositions, compositions including at least about 0.008% w/v benzalkonium chloride, and compositions including hydroxypropylmethyl cellulose E15 LV. | 02-21-2013 |
| 20130060196 | DRIVE MECHANISM FOR DRUG DELIVERY PUMPS WITH INTEGRATED STATUS INDICATION - A drive mechanism having integrated status indication includes a drive housing, a status switch interconnect, a drive biasing member, a piston, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the drive biasing member is configured to bear upon an interface surface of the piston. Drive mechanism may include an incremental status stem having a stem interconnect, wherein the stem resides within the drive housing and the piston, and wherein the stem has an interconnect which engages one or more contacts on the piston to provide incremental feedback. A drug delivery pump with integrated status indication includes a housing and an assembly platform, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection, a power and control system, and the drive mechanism having a drug container may be mounted. | 03-07-2013 |
| 20130096503 | ACCUMULATOR FOR IMPLANTABLE INFUSION DEVICE - An accumulator is employed in an implantable infusion device to provide compliance in the flow path of the device. The accumulator may act to increase the pumping accuracy and repeatability while simultaneously reducing the energy requirements of the device. In one example, the accumulator is arranged at the outlet of a fluid delivery pump of the infusion device. The accumulator includes a cover and a diaphragm biased away from the cover and configured to deflect toward the cover under pressure generated by the therapeutic agent in a flow path of the infusion device. The cover of the accumulator is configured to withstand the pressure generated by the therapeutic agent in the flow path without deforming. | 04-18-2013 |
| 20130102964 | WEARABLE INSULIN DISPENSING DEVICE, AND A COMBINATION OF SUCH A DEVICE AND A PROGRAMMING CONTROLLER - A disposable, wearable, self-contained insulin dispensing device includes a housing and an insulin source in the housing that is connected to a catheter for injecting insulin into a user. | 04-25-2013 |
| 20130110046 | APPARATUS AND CASE FOR INFUSION EQUIPMENT | 05-02-2013 |
| 20130178799 | MULTI-CARTRIDGE FLUID DELIVERY DEVICE - A fluid delivery device for administering a first medicament and a second medicament includes a first fluid reservoir configured to contain the first medicament and a second fluid reservoir configured to contain the second medicament. The fluid delivery device may include one or more basal drive mechanisms to provide a basal delivery of one or more of the first and second medicaments. The fluid delivery device may further include one or more bolus drive mechanisms to provide a bolus delivery of one or more of the first and second medicaments. | 07-11-2013 |
| 20130190691 | CARTRIDGE INTERFACE ASSEMBLY - A cartridge interface assembly ( | 07-25-2013 |
| 20130204188 | System, Method, and Apparatus for Estimating Liquid Delivery - A pump, related system, and related method are provided. The pump includes a reservoir, a port, and a plunger. The reservoir delivers a liquid by discharging the liquid through the port coupled to the reservoir. The plunger has a piston coupled to a shaft and is disposed within the reservoir in sliding engagement with an inner surface of the reservoir. The piston defines a liquid side of the reservoir and a non-liquid side of the reservoir whereby movement of the plunger towards the liquid side of the reservoir discharges liquid through the port. The pump also includes a reference-volume assembly and/or a linear position sensor. The reference-volume assembly is coupled to the reservoir at an opposite end of the reservoir relative to the port and includes a reference-volume chamber in acoustic communication with the non-liquid side of the reservoir, a speaker disposed within the reference-volume chamber, and a reference microphone disposed within the reference-volume chamber. The reference-volume assembly and/or linear position sensor may be used to estimate the amount of liquid discharged from the reservoir. | 08-08-2013 |
| 20130289485 | Infusion Pump Assembly - An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw. | 10-31-2013 |
| 20130296789 | Dispensing Fluid from an Infusion Pump System - Some embodiments of an infusion pump device may include a drive system that accurately and incrementally dispenses fluid from the pump device in a controlled manner. Particular embodiments of the drive system may include a rotational motor that is coupled to a string member, which is used to adjust a pawl relative to a ratchet body. In such circumstances, the drive system can provide a reliable and compact infusion pump device that accurately dispenses the desired volume of fluid. | 11-07-2013 |
| 20130303990 | ONE PIECE SEALING RESERVOIR FOR AN INSULIN INFUSION PUMP - A novel one-piece fluid reservoir assembly for use in conjunction with an insulin infusion pump. The single piece fluid reservoir assembly includes a barrel body, a male luer fitting integral with the barrel body, a sealing surface integral with the barrel body, the sealing surface for sealing against the pump housing when the fluid reservoir assembly is inserted into the pump housing. Further, the barrel includes, as part of the one-piece fluid reservoir assembly, threads for engagement with threads on an opening in the fluid pump so that the fluid assembly can be inserted into the fluid pump, engage the threads and rotation therewith will locate the fluid reservoir assembly within the pump. Thereafter, a piston in the pump may be incrementally advanced to act upon a plunger in the barrel assembly to force a fluid within the barrel assembly through the male luer fitting and through a conduit engaged therewith to a remote infusion set. | 11-14-2013 |
| 20130317436 | INFUSION PUMP - An infusion pump comprises a housing ( | 11-28-2013 |
| 20140039395 | Patch-Sized Fluid Delivery Systems and Methods - A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device. | 02-06-2014 |
| 20140039396 | Dosing Unit For An Infusion Pump Device - A dosing unit for an ambulatory infusion pump device is presented. The dosing unit comprises a cylinder pump with a cylinder and a piston arranged in the cylinder. The piston has a shaft with a first threaded segment interacting with a threaded portion of the cylinder and can be displaced along a longitudinal axis of the cylinder by rotating the piston in regard to the cylinder around the axis. Furthermore, the piston allows for the relative or absolute determination of the longitudinal and/or rotational displacement of the piston in regard to the cylinder. In one embodiment, the piston shaft comprises a second segment provided with optically detectable markings that allow the monitoring of the longitudinal and/or rotational displacement of the piston in regard to the cylinder. | 02-06-2014 |
| 20140074030 | MEANS AND METHOD FOR DETECTING FREE FLOW IN AN INFUSION LINE - A pump system and method of detecting/alerting for a possible unintended free flow condition in an administration set includes the steps of a) sampling force signals from a force sensor of the pump at a predetermined frequency; b) storing each of the sampled forces signal in a N-point circular buffer, where N is an integer greater than two; c) calculating a derivative dF/dt based on the two most recent samples; d) repeating step c) and when the most recently calculated derivative dF/dt exceeds a first predetermined threshold, then calculating a N-point moving average of the derivatives dF/dt; and f) when the N-point moving average exceeds a second predetermined threshold, generating a user perceptible alarm to alert the user that a flow stop open condition may have occurred. | 03-13-2014 |
| 20140088508 | DRUG-DELIVERY DEVICES WITH INTEGRATED NEEDLE-INSERTION MECHANISM - Drug-delivery devices for subcutaneous injections may be provided with pre-filled drug reservoirs and/or integrated needle-insertion mechanisms to increase ease of use of the devices. Certain device configurations include a needle disposed above or below the drug vial, parallel to the bottom wall of the device, with the needle-insertion mechanism placed at least partially side-by side with the vial. | 03-27-2014 |
| 20140094754 | TELESCOPING PISTON DRIVE FOR MEDICAL INFUSION DEVICE - Described is a drive mechanism for a drug infusion pump. In one embodiment, an in-line drive mechanism is provided that includes a motor operatively coupled to a lead screw, which is configured to engage a piston. The piston includes a cavity to receive the motor and the lead screw such that the lead screw and at least a portion of the motor are substantially contained within the piston cavity when the piston is in a retracted position. In one embodiment, the motor rotates a drive shaft is configured to turn a mechanism comprising a piston, a lead screw, and a housing that cooperate to extend telescopically to drive a plunger into a medicament cartridge, thereby expelling fluid. | 04-03-2014 |
| 20140094755 | MONITORING THE OPERATING HEALTH OF A FORCE SENSOR IN A FLUID INFUSION DEVICE - A device for delivering fluid to a user includes a housing, a drive motor assembly in the housing, a force sensor, and an electronics module. The drive motor assembly regulates delivery of fluid by actuating a piston of a fluid reservoir, and the force sensor generates output levels in response to force imparted thereto during, for example, fluid delivery operations. The electronics module processes the output levels of the force sensor to assess the operating health of the force sensor, to check for occlusions in the fluid delivery path, and to monitor the seating status of the fluid reservoir. | 04-03-2014 |
| 20140100527 | INFUSION DEVICE WITH A GROOVED PISTON CHANNEL WALL - An apparatus for delivering a fluid includes a housing, an inlet in the housing for receiving the fluid, and an outlet in the housing for discharging the fluid. A piston channel is provided within the housing through which the fluid flows from the inlet to the outlet. An actuator is positioned within the housing and is moveable between a retracted position and a forward position, the actuator defining a piston chamber for storing fluid received through the inlet when the actuator is in the retracted position and for driving the fluid stored in the piston chamber toward the outlet when the actuator transitions from the retracted position to the forward position. The actuator includes an armature and a piston coupled to the armature and moveable within the piston channel. The piston channel wall is provided with a groove for conducting fluid from the inlet to the outlet. | 04-10-2014 |
| 20140114253 | Infusion Pump Assembly - An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw. | 04-24-2014 |
| 20140121602 | INFUSION PUMP - An infusion pump comprises a housing ( | 05-01-2014 |
| 20140180210 | Dosing Unit for an Ambulatory Infusion Device - A dosing unit for an infusion pump device is disclosed having a piston pump with a pump cylinder and a plunger arranged within said cylinder, coaxially arranged along a longitudinal axis. The plunger has a shaft with a thread and the cylinder has a threaded sleeve part with a thread. The two threads engaging with each other in such a way that a rotational movement of the plunger around the longitudinal axis results in an additional linear displacement of the plunger along said longitudinal axis. A separate bias force element biases the two threads in regard to each other along the longitudinal axis, such that the threaded engagement of inner thread and outer thread is free of play independent of a direction of a rotational movement and linear displacement of the plunger in regard to the cylinder. | 06-26-2014 |
| 20140221930 | Venting Device for Use in Ambulatory Infusion System - A venting device is presented. The venting device comprises a venting member made from a hydrophobic and gas-permeable material. The venting member has an environment coupling surface and an opposed cartridge coupling surface and a carrier member. The carrier member structurally supports the venting member. The venting member is designed such that the venting device and a liquid drug cartridge form, in the assembled state, a compact common cartridge assembly. After inserting the cartridge assembly into a cartridge compartment of an ambulatory infusion device, the cartridge coupling surface fluidic couples, to a non liquid contacting outer surface of the movable wall, and the environment coupling surface at the same time fluidic couples to the environment. | 08-07-2014 |
| 20140236087 | INFUSION DEVICE HAVING GEAR ASSEMBLY INITIALIZATION - Apparatus are provided for infusion devices and related operating methods. An exemplary infusion device includes a housing to receive a shaft coupled to a plunger disposed in a reservoir and a gear assembly including a first gear to engage the shaft, wherein the first gear exhibits rotational freedom in a direction opposite a delivery direction. One exemplary method of operating the infusion device comprises identifying a reset condition and in response to the reset condition, operating a motor having a rotor coupled to the gear assembly to provide the rotational freedom for the first gear. | 08-21-2014 |
| 20140296786 | FLUID CARTRIDGE FOR MEDICAL INFUSION DEVICE - The invention is generally directed toward a novel fluid cartridge for medical infusion devices. The disclosed invention describes various protection sleeves and other structures for protecting the luer connection of a lineset that connects to the cartridge, to reduce the stresses placed on the luer connection when the lineset is worn on the body of patient, and to reduce the chances for unintentional disconnection, breakage, or leakage. | 10-02-2014 |
| 20140296787 | DRIVE MECHANISM FOR DRUG DELIVERY PUMPS WITH INTEGRATED STATUS INDICATION - A drive mechanism includes a housing, a piston adapted to impart movement to a plunger seal within a drug container, a plurality of biasing members disposed in parallel, and a retainer. The biasing members are disposed to release energy to cause movement of the piston from a retracted first position to the extended second position, the piston bearing against the plunger seal to dispense medicine. The retainer is disposed to maintain the biasing members in the energized position and to release the biasing members to permit the piston to dispense the medicine. The drive mechanism may also include an end-of-dose indicator to identify at least one of when the sleeve assembly is disposed subjacent a window in the housing, the relative motion of the sleeve assembly with reference to the window or another reference component, the stoppage of such motion, and the rated or change of rate of motion. | 10-02-2014 |
| 20140330206 | MEDICAL DEVICE FOR DELIVERING AT LEAST ONE FLUID FROM A MEDICAL DEVICE - The invention relates to a medical device and a method for delivering at least one fluid from a medical device. More particularly, the present patent application relates to medical devices for delivering at least one, in particular two drug agents from separate reservoirs. The technical problem of preventing after-dripping and at the same time improving the safety and the dose accuracy of a medical device is solved by a method for delivering at least one fluid from a medical device, wherein the fluid is ejected from a reservoir by an advancing movement of a bung, wherein an electromechanical device is instructed to move the bung via a piston over a predetermined distance and wherein, after a dwell time following the advancing movement of the piston, the piston is retracted by the electromechanical device. The technical problem is also solved by a medical device, in particular for performing a method according to the invention, comprising a reservoir, a bung, a piston an electromechanical device and a control unit. | 11-06-2014 |
| 20140336580 | Multi-Cartridge Fluid Delivery Device - A fluid delivery device for administering a first medicament and a second medicament includes a first fluid reservoir configured to contain the first medicament and a second fluid reservoir configured to contain the second medicament. The fluid delivery device may include one or more basal drive mechanisms to provide a basal delivery of one or more of the first and second medicaments. The fluid delivery device may further include one or more bolus drive mechanisms to provide a bolus delivery of one or more of the first and second medicaments. | 11-13-2014 |
| 20140378903 | MANUALLY ACTUATED INFUSION DEVICE AND DOSE COUNTER - An infusion device for delivering discrete boluses of medication to a patient, using a mechanically actuated piston. The infusion pump employs a near-field communication system to convey the occurrence of an actuation, the amount of medicament remaining in the pump, and other information to a nearby near-field receiver device. The disclosed drive system and nearer-field communications system provides an infusion device capable of accurately delivering medication and providing a means for tracking and logging data while eliminating the need for a power source within the device, thereby minimizing weight and size. | 12-25-2014 |
| 20150018768 | Infusion Pump Assembly - An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw. | 01-15-2015 |
| 20150032054 | PISTON PUMP AND DEVICE FOR FEEDING AND METERING A FLUID FOR MEDICAL PURPOSES BY MEANS OF A PISTON PUMP - A piston pump is described for pumping a fluid, comprising at least two cylinders each having a piston which is movable inside the associated cylinder along the longitudinal axis of the cylinder by means of a drive, wherein cylinders are attached to a common pump flange. In each cylinder a chamber is formed having a volume that changes when the associated piston is moved in the cylinder. The pump flange extends along the direction of motion of the pistons, and at least one inlet port and one outlet port are attached to the pump flange, whose longitudinal axes run along the pump flange. A central valve plate is attached to the side of the pump flange facing away from the cylinders that bear on the pump flange and continuously rotates transversely to the pump flange during pumping operation of the piston pump. Respective passages are introduced to the pump flange in the region of each inlet and outlet port, and cylinder openings are introduced to the pump flange in the region of each cylinder. The valve plate has at least two cavities on the flange side, of which a first cavity coincides, upon rotation of the valve plate to a first angular position, with a cylinder opening of a first cylinder and a passage of the outlet port, while the second cavity coincides in this first angular position with the passage of the inlet port and a cylinder opening in the second cylinder. The first cavity then coincides, upon rotation of the valve plate to a second angular position, with the passage in the outlet port and a cylinder opening in the second cylinder, while the second cavity coincides in this second angular position with the passage in the inlet port and a cylinder opening in the first cylinder. | 01-29-2015 |
| 20150032055 | DEVICE FOR SUPPLYING AND METERING A FLUID FOR MEDICINAL PURPOSES - A device is described for supplying and metering a fluid for medical purposes, at least comprising one pump for pumping the fluid and at least one element through which the fluid is conveyed. At least one recess is provided in the element, which is tightly covered by a sensor component composed of a pressure sensitive material, wherein the material of the element is harder than that of the sensor component. The apparatus also has a force sensor with which pressure-induced changes of the sensor component in the region of the recess can be measured. | 01-29-2015 |
| 20150038906 | Portable Pump for Infusing Liquid Substances into the Body of a Living Being and Reservoir for use in said Pump - A portable pump for infusing liquid substances into a body is provided. The pump has a casing and electromechanical members for converting rotary motion of a motor shaft into linear sliding motion of a pusher for causing movement of a plunger slideable within an interchangeable reservoir in which the substance to be infused is contained in a housing. The housing communicates through an opening formed in a casing wall through which the reservoir can be inserted into and removed from the housing and from which an appendix of the reservoir protrudes for the exit of the substance. The housing has a distal portion with mechanical means for reversible engagement of the reservoir end opposite to the appendix and a proximal portion provided with an annular sealing gasket which surrounds the reservoir and forms a seal between the reservoir and casing wall. | 02-05-2015 |
| 20150057616 | Hand-Held Injection Devices and Methods of Use - At least one hand-held injection device for the metered injection of a liquid drug into a person's tissue is disclosed. The exemplary injection device comprises an elongated drug reservoir having a longitudinal reservoir axis (A), an elongated dosing unit having a dosing unit inlet, a dosing unit outlet, and a metering cavity, the dosing unit having a longitudinal dosing unit axis (A′), the elongated drug reservoir being fluidically coupled to the dosing unit inlet. The dosing unit and the drug reservoir are arranged such that the longitudinal dosing unit axis (A′) is in parallel alignment with the reservoir axis (A). The dosing unit structured to allow the flow of the liquid drug from the drug reservoir into the metering cavity via the dosing unit inlet, thus charging the metering cavity, and to subsequently discharge the metering cavity by dosing drug out of the metering cavity into the dosing unit outlet. | 02-26-2015 |
| 20150094665 | DRIVE DEVICE FOR THE LINEAR MOVEMENT OF AN INFUSION SYRINGE PISTON, INFUSION PUMP AND METHOD FOR REPLACING AN INFUSION SYRINGE - The invention relates to a drive device for linear movement of an infusion syringe piston of an infusion syringe disposed on an infusion pump comprising a drive head unit including a main bearing means for supporting the infusion syringe piston, a fixing means for securing the infusion syringe piston to the main bearing unit as well as means for triggering the fixing means and comprising an advancing means for the drive head unit including a motor-drivable advancing spindle and a multi-part advancing spindle nut having at least one radially movable nut shell, wherein the drive head unit additionally comprises detecting means for detecting the infusion syringe piston ahead of the main bearing means, the detecting means including a multi-threshold sensor unit comprising an at least two-stage upstream detection means for detecting different positions of the infusion syringe piston ahead of the main bearing means. | 04-02-2015 |
| 20150100023 | INLINE PUMP WITH REAR ATTACHABLE SYRINGE - Inline pumps with rear attachable syringes are disclosed. The pump and the syringe are each designed so that the pump syringe system may be easily coupled and decoupled in the field. An end mount block on the pump has a slot shaped to accept a similarly shaped plunger button and plunger rod on the syringe. A user aligns the plunger button of the syringe next to the slot on the mount block of the pump, and slides the plunger button and rod into the inner cavity of the pump. Both the pump and the syringe have threaded couplers which securely couple the pump to the syringe by rotating the couplers with respect to each other. | 04-09-2015 |
| 20150306315 | SYRINGE PUMP WITH REPLACEABLE SYRINGE CARTRIDGES - A syringe system ( | 10-29-2015 |
| 20150343148 | DEVICE COMPRISING A BODY, A PUSHER, AND A CAP, THE CAP AND/OR THE BODY COMPRISING A HYDROPHILIC TREATMENT - The invention relates to a device comprising at least a body ( | 12-03-2015 |
| 20150367065 | MEDICATION SAFETY DEVICES AND METHODS - A medication safety device and method can include an infusion pump and a drug library in communication with the infusion pump. The drug library can have upper hard and soft limits and lower hard and soft limits associated with at least one drug. A graphical user interface can display a bar chart showing upper and lower soft limit bars for the at least one drug. The upper and lower soft limit bars can be grabbed and dragged on the graphical user interface in touch screen fashion to new positions associated with new upper and lower soft limits. The graphical user interface and associated hardware and software can be configurable to responsively reanalyze data and compare a particular infusion to the new upper and lower soft limits. | 12-24-2015 |
| 20160030665 | CARTRIDGE INTERFACE ASSEMBLY - A cartridge interface assembly ( | 02-04-2016 |
| 20160074574 | ROTATABLE ELECTRICAL CONNECTORS - A rotatable electrical connector can include a base housing having a bottom surface, a top housing that is rotatably engaged with the base housing, and a plurality of contact pads that are arranged radially within the base housing. The contact pads each have a top surface and a bottom surface. A plurality of signal pins are individually associated with the plurality of contact pads; and each of the signal pins correspondingly project outwardly from the bottom surface of an associated contact pad and outwardly from the bottom surface of the base housing. A center ground pad, having a top surface and a bottom surface, is provided within the base housing. A ground pin projects outwardly from the bottom surface of the center ground pad and outwardly from the bottom surface of the base housing. A plurality of conductors is arranged radially within the top housing. The conductors individually correspond to the plurality of contact pads within the base housing. Each of the conductors has (i) a bottom surface that is capable of being in rotatable contact with the top surface of each of the contact pads and (ii) a top surface that projects outwardly from the top housing. A ground conductor is centrally located within the top housing and is surrounded by the plurality of conductors. The ground conductor has a bottom surface that is in rotatable contact with the top surface of the center ground pad in the base housing, and a top surface that projects outwardly from the top housing. | 03-17-2016 |
| 20160074575 | BOLUS DRUG DELIVERY DEVICE - A supplemental pain medication device may be placed in parallel with a basal rate controller for providing a temporary increased level of pain medication to a patient on demand. a trigger of the supplemental pain medication device must be initially depressed in order to allow fluid to flow through the device so that an upper body of the device which is attached to a plunger may slide into a lower body which is attached to a reservoir. When the upper body is slid into the lower body, the plunger also slides into the reservoir to pump fluidic pain medication out of the device. | 03-17-2016 |
| 20160082181 | Infusion Pump Assembly - An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw. | 03-24-2016 |
| 20160121044 | FLUID INFUSION DEVICE WITH SAFETY COUPLING - A fluid infusion device is provided. The device comprises a drive system that includes a movable slide. The slide includes a first coupling device. The device also comprises a fluid reservoir that includes a stopper movable relative to the fluid reservoir by the slide to advance a fluid out of the fluid reservoir. The stopper includes a second coupling device that cooperates with the first coupling device to resist the movement of the stopper relative to the slide. | 05-05-2016 |
| 20160136353 | COMBINATION LINEAR POTENTIOMETER AND SYRINGE THUMBPRESS DETECTION SENSOR AND RELATED SYSTEMS AND METHODS - A combined detectional and positional sensor for a syringe pump. The sensor can comprise a syringe thumbpress clamp that is pivotable so that an engagement pin deflects a linear membrane potentiometer first circuit thus providing a closed switch for detection of a syringe in the pump and a variable signal return for indication of plunger head position. Embodiments of the sensor can be used in relatively large syringe pumps and in relatively small syringe pumps, for example. | 05-19-2016 |
| 20160151564 | PUMP CASSETTES WITH PISTON AND INFUSION PUMP SYSTEMS | 06-02-2016 |
| 20160184510 | Syringe Pump - A pump for administering an agent to a patient includes a housing, a motor, a gearbox, a sensor, and a controller. The motor may be coupled to housing. The gearbox is operatively connected to said motor. The sensor senses a rotation of said motor. The controller acts to control operation of said motor and monitor the quantity of said agent delivered to said patient. The pump also includes a pump assembly such that the pump is configured such that the pump assembly may be interchangeable from a syringe pump assembly and a peristaltic pump assembly. | 06-30-2016 |
| 20160250410 | HOLDING DEVICE FOR A SYRINGE PUMP | 09-01-2016 |
| 20170232188 | Infusion pump assembly | 08-17-2017 |
| 20170232191 | AMBULATORY INFUSION PUMPS AND ASSEMBLIES FOR USE WITH SAME | 08-17-2017 |
