A system for delivering a medicinal fluid to a patient includes a variable volume pressure delivery chamber, a variable volume medication chamber, an optional medication reservoir, a movable delivery element, a fixed reference volume chamber, a pressure source, and a control sub-system. The variable volume pressure delivery chamber is configured to store pressure controllably. The variable volume medication chamber is fluidically isolated from the pressure delivery chamber and is configured to store medicinal fluid. The movable delivery element is disposed between the medication chamber and the pressure delivery chamber. The pressure source is coupled to the pressure delivery chamber. The control system is configured to selectively cause the pressure source to deliver pressure to the pressure delivery chamber causing the movable delivery element to apply pressure to the medicinal fluid in the medication chamber thereby causing the medicinal fluid to exit the medication chamber at an outlet along the fluid communication path to the patient.

A system for treating heart disease, such as pulmonary hypertension or right heart failure, including an implantable component and external components for monitoring the implantable component is provided. The implantable component may include a compliant member, e.g., balloon, coupled to a reservoir via a conduit. Preferably, the compliant member is adapted to be implanted in a pulmonary artery and the reservoir is adapted to be implanted subcutaneously. The external components may include a clinical controller component, monitoring software configured to run a clinician's computer, a patient monitoring device, and a mobile application configured to run on a patient's mobile device.

Systems and methods are provided for anesthetic agent level sensing. In one embodiment, a system for an inductive level sensor for an anesthetic vaporizer includes a measurement target positioned around a rod that extends within a chamber configured to hold liquid anesthetic agent, the rod configured to be at least partially submerged in the liquid anesthetic agent and the measurement target configured to slide vertically along a length of the rod and rest on a surface of the liquid anesthetic agent, and a strip of inductive transmitter coils and receiver coils positioned external to the chamber, a length of the strip aligned with the length of the rod, the transmitter coils configured to generate a magnetic field that surrounds the rod and the measurement target and the receiver coils configured to sense changes in the generated magnetic field at a vertical location of the measurement target on the rod.

The disclosed systems and methods are configurable central nervous system (CNS) delivery solutions for therapeutics, such as genetic medicines. The systems and methods first infuse a therapeutic bolus within intrathecal space and subsequently infuse a flush fluid to move the therapeutic bolus rostrally toward a target area and achieve a desired spread in the spine and/or brain. The second location can be at a location caudal to the delivery location of the therapeutic bolus.

A system and method for calibrating an IV pump infusion system tube comprises a fluid source, an infusion system comprising, an IV pump, a drive unit, a chamber with known constant volume, a control unit, and IV tubing with a known inner diameter tolerance, and a switch and magnetic floating object. The system administers medicinal fluid, calculates the flow rate of the medicinal fluid in the chamber by measuring the time the switch is activated as medicinal fluid rises in the chamber, compares the calculated flow rate with a set flow rate of the IV pump input in the control unit prior to infusion, and adjusts the IV pump and flow rate based on the compared deviations for more accurate delivery to a patient. This configuration may provide a more precise delivery rate of medicinal fluid, preventing harm to the patient and waste of medicine.

Wearable fluid delivery devices and pump systems having a pump status determination assembly to determine a status of at least one component of a fluid pump are described. For example, in one embodiment, a fluid pump system for a wearable fluid delivery device may include a control system, a first pump element associated with a first electrical element, a second pump element associated with a second electrical element, wherein the first pump element is configured to engage the second pump element to form an electrical circuit between the first electrical element and the second electrical element, the control system configured to receive at least one signal from the electrical circuit. Other embodiments are described.

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.

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.

An example position determining apparatus, includes a power source, position sensors, and a controller. The position sensors are each selectively powered by the power source and configured to provide a respective sensor reading indicating a proximity of a tracked object. The controller is configured to receive respective sensor readings from the position sensors and identify a position sensor that provided an extremum sensor reading. Based on the sensor readings, the controller selectively cause powering of certain position sensors and prevents powering of other position sensors. The position sensor that provided the extremum sensor reading is one of the powered position sensors. A position output based on the sensor readings is also provided.

The present invention relates to a device for measuring a bodily fluid drainage amount, the device comprising: a measurement case which is formed of a rigid material and provided with a bodily fluid measurement space therein; a drainage tube which is coupled to an entrance of the measurement case in a releasable structure and transfers bodily fluids discharged from a human body to the bodily fluid measurement space of the measurement case; a plurality of fluid level sensors, which are horizontally disposed on an upper surface of the measurement case and measure and inform fluid levels of the bodily fluids collected in the bodily fluid measurement space; and a control device which receives and analyzes the fluid levels of the bodily fluids, infers a tilt of the measurement case from a difference in the fluid levels of the bodily fluids, and calculates and informs a bodily fluid drainage amount.