2203 results about "Infusion solution" patented technology

An implantable infusion pump possesses operational functionality that is, at least in part, controlled by software operating in two processor ICs which are configured to perform some different and some duplicate functions. The pump exchanges messages with an external device via telemetry. Each processor controls a different part of the drug infusion mechanism such that both processors must agree on the appropriateness of drug delivery for infusion to occur. Delivery accumulators are incremented and decremented with delivery requests and with deliveries made. When accumulated amounts reach or exceed, quantized deliverable amounts, infusion is made to occur. The accumulators are capable of being incremented by two or more independent types of delivery requests. Operational modes of the infusion device are changed automatically in view of various system errors that are trapped, various system alarm conditions that are detected, and when excess periods of time lapse between pump and external device interactions.

An infusion system that includes a watch controller device and a communication system to transmit the communications from the watch controller device to an infusion device pump that controls delivery of fluids to the user's body. More particularly, these apparatuses and methods are for providing convenient monitoring and control of the infusion pump device in determining the appropriate amount of insulin to deliver.

A system and process for providing safety limits on the delivery of an infusion formulation by an infusion pump system in response to a sensed biological state. The safety limits may comprise user-initiated event signals corresponding to events that may significantly affect the biological state. The safety limits may further comprise user-initiated event ranking signals for respective events which specify a degree, quantity, or measure for the respective event. The user-initiated event and event ranking signals may be communicated to a computing element associated with the infusion pump by an associated communication device having a user interface which comprises a plurality of user-selectable operators for entering information about the events and event rankings.

An infusion set for subcutaneous delivery of an infusant. The infusion set may include a base removably attachable to an infusion site and a connector temporarily lockable to the base. The connector can engage the base in a plurality of orientations. The connector locks into the base after at least partial rotation of the connector about the base. The connector may include flexible arms which unlock the connector from the base. The base includes a cannula for insertion through the infusion site. The connector includes a tubing for passing the infusant. The infusant is subcutaneously passable from the tubing through the cannula when the connector is attached to the base. The infusion set may also include a hub removably attachable to the base that includes a needle that extends through the base and the cannula and a guard removably attachable to the base opposite the hub for surrounding the needle.

An optical sensor for a delivery device having a piston that displaces a substance, such as a fluid, from a reservoir. The optical sensor has a light source and a detector array for imaging encoding features disposed along a plunger rod coupled to the piston. By virtue of the pattern of encoding features, an absolute position of the plunger rod relative to a fiducial position may be determined uniquely. Thus, the volume of fluid remaining in the reservoir, the rate of fluid delivery, and proper loading of the reservoir may be accurately ascertained. Additionally, the encoding may serve to uniquely identify a version of the reservoir which may be supplied in various versions corresponding, for example, to differing concentrations of a therapeutic agent to be dispensed.

A system includes a durable portion with a durable housing and a separable disposable portion with a disposable housing that selectively engage with and disengage from each other. The disposable housing secures to a 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 an infusion medium may be part of the disposable portion to allow for disposal after a prescribed use. A reservoir for holding the infusion medium may be part of the disposable portion, and may be supported by the disposable housing. The durable portion may include other components such as electronics for controlling delivery of the infusion medium from the reservoir, and a drive device including a motor and drive linkage.

An air trap for a blood circuit and method for removing air from blood in a dialysis unit. The air trap may include a blood inlet supply line, a blood outlet supply line, and a container having an approximately spherical internal wall, an inlet at a top end of the container connected to the blood inlet supply line, and an outlet at a bottom end of the container connected to the blood outlet supply line. The inlet may be offset from a vertical axis of the approximately spherical internal wall such that blood entering the container is directed to flow in a spiral-like path. The inlet port may be arranged to introduce blood into the container in a direction that is approximately tangential to the approximately spherical inner wall of the container and / or in a direction that is approximately perpendicular to the vertical axis of the container.

Liquid activated infusion packet(s) / system, promoting hydration, containing active and / or inactive ingredients and / or a support member(s). Infusion Packet(s) / System is one or more individual compartments, and / or group(s), whereby the enveloping material(s) may be totally or partially dissolvable, edible, transparent, opaque, decorated, etc. Further, including of one or more: color(s), flavor(s), aroma(s), pharmaceutical(s), nutraceutical(s), dietary supplement(s), enzyme(s), pre / pro-biotic(s), amino-acid(s), soluble-fiber(s), diagnostic agent(s) etc. regardless of form, + / - effervescence, + / - uniform / controlled-release encapsulations into liquid for humans and / or animals. Enveloping material may be in whole and / or in combination; non-synthetic / porous, and / or synthetic porous / non-porous with deliberate perforations. Infusion Packet(s) / System + / - tag, support member for assistance, consumer compliance: promotion, advertising, education, entertainment, (toy / game), etc. Manual and / or power operated parts, lights, noise, etc. Additionally incorporated; unique business modalities with test market opportunities and / or the ability to provide income and / or esteem for the health challenged.

An infusion system includes a disposable wearable infusion device and a filler device. The disposable infusion device has a body arranged to be adhered to a patient's skin and a reservoir for holding a liquid medicant to be infused into the patient. The filler device is arranged to detachably receive the infusion device body and to transfer a volume of the liquid medicant to the infusion device reservoir. The filler device may be part of a service device arranged to detachably receive the infusion device and which also includes a cannula driver and a cannula for providing the infusion device with a cannula and deploying the cannula to beneath a patient's skin.

An infusion array ablation apparatus includes an elongated delivery device having a lumen and an infusion array positionable in the lumen. The infusion array includes an RF electrode and at least a first and a second infusion member. Each infusion member has a tissue piercing distal portion and an infusion lumen. At least one of the first or second infusion members is positionable in the elongated delivery device in a compacted state and deployable from the elongated delivery device with curvature in a deployed state. Also, at least one of the first or second infusion members exhibits a changing direction of travel when advanced from the elongated delivery device to a selected tissue site. At least one infusion port is coupled to one of the elongated delivery device, the infusion array, the first infusion member or the second infusion member.

An irrigation system for a medical device. The irrigation system may include a pump that can pump irrigation fluid from a reservoir through an irrigation line. The system may further have a controller coupled to the pump and an accumulator pressure sensor that senses the pressure of the irrigation line. The controller can vary the speed of the pump in response to a change in the line pressure to control the irrigation line pressure. Additionally, the controller can monitor the fluidic resistance of the system by determining the pump speed and corresponding flowrate of the pump. The controller can provide one or more safety output signals if the fluidic resistance exceeds a threshold value(s).

The present invention is a medical infusion and aspiration system delivering precisely timed and accurately calculated, adjusted pulsated delivery in high rates of flow delivering an effective profile of pulses tailored to provide momentary spikes of levels of freely available medicines based upon the uptake of the medicine and optimally on real time measurements of the medicine or response of the patient, termed Quantitative Chronological Delivery. The system comprises any pumping mechanism, and optimally a pumping mechanism, and a cassette or cartridge having a reservoir area where the plunger rotates as it advances in reference to the cartridge to provide additional accuracy and overcome the forces of inertia and slip-stick as well as eliminate backlash. Optimally, the systems incorporates an encoded area and an opening for connection to an infusion tube with an in-line sensor area where sampling probes are located. The infusion is adjusted in both amount and duration between pulses to provide quantitatively controlled, chronologically optimized infusion. A motor causes bi-directional pumping to allow for samples to be presented to the sensor area. The system accuracy allows for more concentrated medicines, as a sealed container can eliminate the need for diluting or withdrawing medicine to load a reservoir, and achieves extraordinary accuracy without error correcting software or expensive volumetric measurement and control systems.

A pump system for an infusion system includes a linear drive (36, 36′) which minimizes the space occupied by the pump components in a portable housing (10, 10′). A motor (34) and a motor drive shaft (42) are arranged in parallel with, and adjacent to a syringe (14, 14′) and lead screw (94, 94′). A gear box (54) connects the drive shaft and lead screw to transfer rotational movements between them. A piston driving member, such as a cone (116) or drive nut (116′) converts the rotational movement of the lead screw into linear motion of a syringe piston (24). Sensors (150, 152) detect when the piston or cone is in a “home” position and in an “end” position, respectively. Optionally, a proximity sensor (170) is used to ensure that the cone and the piston (24) are abutting during dispensing. Alternatively, a clamping member (350) selectively clamps the lead screw (94′) against linear motion in at least a dispensing direction.

In an infusion apparatus, an infusion line (4) connects a container (2) of an infusion fluid to an extracorporeal blood circuit (23). A first valve (6) closes the infusion line downstream of an infusion pump (5). An expansion chamber (9), provided with a pressure sensor (10), is arranged between the infusion pump and the first valve. A second valve (8) closes a vent line (7) of the expansion chamber. The processor closes the first valve when the container is emptied. After replacement with a new and full container, the processor restarts the pump and selectively opens the first valve or the second valve according to the increase in pressure measured in the expansion chamber.

A method of programming an infusion device includes receiving an infusion rate for a time period, wherein the time period overlaps with a predefined start of a predefined period of the infusion device. The time period is converted into (1) a first converted time period extending from a start of the time period to the predefined start of the predefined period, and (2) a second converted time period extending from the predefined start of the predefined period to an end of the time period. The infusion device is programmed with the infusion rate for the first converted time period and the second converted time period.

A sensor-augmented medication infusion system includes a sensor attached to a body of a user to detect an analyte level of the user. An infusion device is adapted to be carried by the user that includes a drive mechanism operatively coupled to a reservoir containing a fluid to infuse the fluid into the body of the user, a processor operatively coupled to the drive mechanism to control the drive mechanism, a communication receiver operatively coupled to the processor to receive data from the sensor corresponding to the analyte level of the user, and a display screen operatively coupled to the processor to display the data corresponding to the analyte level of the user, wherein the infusion device includes a user-selectable function to disable the infusion device from infusing the fluid into the body of the user while continuing to display the data corresponding to the analyte level of the user on the display screen.

A device, system and method are provided for controlling the rate of infusion of fluids during infusion therapy using non-electric infusion devices. Rotation of a flow regulator dial causes an orifice connected to the inlet to modify its position relative to a particular one or more orifices or groove portions, the characteristics of which provide a certain flow rate characteristic. The regulator allows for the infusion pump to infuse at a rate that may be varied during use by the user.

A device for adding a medicine to an infusion solution in an infusion container having a removal opening provided with a seal area. A transfer cap, which has a first hollow spike for piercing the seal area, is connected to the removal opening of the infusion container. A receiving means Dora medicine container is formed at the transfer cap, which has a second hollow spike for piercing a seal at the medicine container. A valve is arranged between the first and second hollow spikes in the transfer cap, where the valve interrupts the connection between the first and second hollow spikes and can be moved into the open position by the action of a force.

Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of operating an infusion device capable of delivering fluid to a user involves determining a current value for a physiological condition of the user influenced by the fluid violates a first threshold value, determining a predicted value for the physiological condition of the user violates a second threshold value, and automatically altering operation of the infusion device to modify delivery of the fluid to the user after determining the predicted value violates the second threshold value when the current value violates the first threshold value.

An ambulatory infusion pump can include a guided user help system that allows for a user to correct an error with the pump without needing to summon a home healthcare aide or other medical professional. When an error occurs with the pump, the user can select an option to receive help with the error. The help screen can display a possible solution for correcting the error that the user can follow. Additional help screens can display additional possible solutions if prior possible solution prove ineffective at correcting the problem.

The present invention provides a reservoir compartment adapter for use with a fluid delivery device. The adapter includes a first end adapted for coupling with a fluid delivery device, a second end adapted for coupling with a connector, and a structure between the first end and the second end including an interior space for receiving the reservoir, wherein an extended reservoir compartment for accommodating the reservoir is adapted to be formed when the first end is coupled to the fluid delivery device, and the reservoir is adapted to be secured in the extended reservoir compartment when the connector is coupled to the second end. The adapter allows a user of a delivery device accommodating reservoirs of a certain size to manage periods where increased medication dosage is needed without the burden of carrying a larger delivery device for accommodating reservoirs filled with the increased dosage.

An infusion flow guidewire system including a delivery sheath and an infusion flow guidewire. The minimal cross section flexible infusion flow guidewire includes a nitinol hypotube, a flexible tip and distally located rearwardly directed orifices for infusion of fibrinolytics and for introduction of high pressure fluids for maceration and rearwardly directed flow of thrombus debris located in tortuous small sized vessels. Apparatus, some of which is removably attachable, is provided for grasping members of the invention for rotational torquing and for longitudinal actuation along and within the vasculature.

A method and system is disclosed for operating a medical device with or without a cassette in place. A method is disclosed for adding additional VTBI to an ongoing infusion without stopping the infusion and with maintaining the infusion parameters. A method and system is disclosed for changing the CCA without having to interrupt or completely stop an ongoing infusion. Quick titration buttons are provided to allow improved navigation between various delivery display screens.

Method and device for monitoring the flow speed of an infusion solution, such as with hemofiltration or hemodiafiltration. The device has a tube for conducting an infusion solution from a source of infusion solution to a pump device in the form of a metering pump, such as a peristaltic pump or a ceramic pump, and on to an infusion device, such as a drip chamber. The flow speed is determined by the metering pump. The flow speed is monitored separately in that the pressure across a restriction device in the tube is measured. The restriction device can be a separately arranged restriction valve. Alternatively the restriction device is arranged by the tube having a small internal diameter of the order of 0.5 mm in size. The pressure measuring device only needs to measure the absolute pressure with respect to the atmosphere. The hydrostatic pressure due to the infusion bag being hung above the pump and the pressure meter is subtracted in a calculation device.

A drug infusion device determines whether an infusion program is stored within a memory. If so, a user is prompted to confirm usage of the program and a drug identifier, and to review the configuration of the device. If the program is not in the memory, the drug infusion device is enabled to receive an auto program with which it can configure itself. When auto program receipt is enabled, the drug infusion device waits for the auto program or for a selection for manual entry of the infusion program. A menu screen is displayed to indicate that the drug infusion device is waiting for the auto program, but the menu screen is not displayed if the auto program is already received. Therefore, a waiting for auto program menu screen may be avoided in many cases, reducing device setup time. In some embodiments, removal of a drug vial resets the device to a point after a power-on self-test and thus provides an easy method for resetting the device to a point that avoids unnecessary steps and expands a window of opportunity for receiving an auto program compared to prior work flows.

The Breviscapine infusion preparation is compounded with Breviscapine as main component, glucose or sodium chloride, propylene glycol, L-arginine, sodium bisulphate, EDTA-2Na and water for injection through certain technological process. The preparation is suitable for great dosage application clinically to avoid cross infection caused by intermediate links. In addition, the present invention is clear and stable.