A injection site information cap includes a housing, a cover portion, an engagement portion configured to couple to and cover an injection port of an injection site, and at least one information element on the cover portion that is positioned to be automatically sensed by at least one sensor of the injection site when the engagement portion is coupled to or is being coupled to the medication injection port. Related apparatus, systems, and techniques are also described.

Exemplary embodiments provide a management wearable device with a body conforming housing. The wearable device may be worn on parts of the user's body, such as the hand, wrist, arm or leg. This eliminates the need for the user to hand carry a device. The wearable device may include a display for displaying information to the user. Where the drug delivery system delivers insulin, the display may be used to display information such as blood glucose concentration readings, insulin on board and other information. The wearable device may also include input elements, such as push buttons, knobs, keys or switches, for providing information, entering commands or initiating or halting activity.

An apparatus such as a fluid mixer, suitable for use with a respirator, including a venturi nozzle for flow of a pressure-controlled fluid; an ambient fluid aperture in fluid communication with the venturi nozzle; a fluid port; a pressure force multiplier in fluid communication with the fluid port; and a valve moveable relative to the venturi nozzle between a start flow position and a stop flow position; where the pressure force multiplier is configured such that fluid forced into the fluid port actuates the valve relative to the venturi nozzle; and where the pressure force multiplier is configured such that fluid withdrawn from the fluid port actuates the valve relative to the venturi nozzle. A method of using an apparatus suitable for a ventilator is also disclosed.

Various methods and apparatus disclosed herein relate to apparatus and techniques for harvesting energy from operation of a syringe, and utilizing that energy for various purposes. In various embodiments, a method (400) for harvesting and using electrical energy during operation of a syringe (100, 300) may include: operating (402) the syringe, wherein operating includes displacing a plunger (112) of the syringe to draw fluid into a reservoir (114) of the syringe or expel fluid from the reservoir of the syringe; converting (404), by an electrical generator (120, 122) that is integral with the syringe, motion associated with displacing the plunger into electrical energy; and using (406) at least some of the electrical energy to at least temporarily store, in a memory component (136) integral with the syringe, one or more data points associated with operation of the syringe.

A wearable device 100 for managing alcohol-driven violence is disclosed. The device 100 comprises a capsule C1 adapted to sense sweat of wearer and detect a level of alcohol in the sweat, a capsule C3 adapted to convert a data detected by the capsule C1 to generate signal activating a capsule C4, a capsule C2 adapted to provide power to the capsule C3, and a capsule C5 adapted to detect a muscle activity of the wearer, wherein the capsule C4 is adapted to inject a drug into the body of the wearer, when activated, and wherein the capsule C5 alerts authorities when no muscle activity is detected.

Described herein is a respiratory therapy system comprising: a primary power supply, a secondary power supply, and a breathing apparatus configured to provide respiratory therapy. The breathing apparatus comprises a controller. There is a connection between the primary power supply and the breathing apparatus configured to facilitate transmission of power and data between the primary power supply and the breathing apparatus. The controller is configured to monitor a parameter of the primary power supply, and disengage the primary power supply if the parameter differs from a parameter threshold. The controller is configured to engage the secondary power supply on disconnection of the primary power supply such that the breathing apparatus can continue operation without interruption.

A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.

Some embodiments have a pump assembly mounted to or supported by a dressing for reduced pressure wound therapy. The dressing can have visual pressure, saturation, and/or temperature sensors to provide a visual indication of the level of pressure, saturation, and/or temperature within the dressing. Additionally, the pump assembly can have a pressure sensor in communication with the flow pathway through the pump, and at least one switch or button supported by the housing, the at least one switch or button being accessible to a user and being in communication with the controller. The pump assembly can have a controller supported within or by the housing, the controller being configured to control an operation of the pump. The pump can be configured to be sterilized following the assembly of the pump such that all of the components of the pump have been sterilized.

Disclosed is an auto-injector for administering a medicament, comprising: a housing; a cartridge receiver configured to receive a cartridge comprising a first stopper; a drive module coupled to move a plunger rod configured to move the first stopper; a resistance sensor configured to provide a resistance signal indicative of resistance against movement of the plunger rod; and a processing unit coupled to the drive module and to the resistance sensor. The processing unit being configured to: control the drive module to move the plunger rod towards the extended plunger rod position; determine present plunger rod position; receive the resistance signal; determine a cartridge parameter based on the resistance signal and the present plunger rod position; and control the drive module to adjust the movement of the plunger rod based on the cartridge parameter.

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.