An inhaler comprising a source of inhalable composition. An outlet flow path is provided for the composition from the source to a composition outlet at an outlet end of the inhaler. Means are provided to generate a flow of composition from the source along the outlet flow path and out of the composition outlet when suction is applied to the outlet end. A pair of air outlets at the outlet end are arranged on opposite sides of the composition outlet through which air is drawn in respective air jets when suction is applied to the outlet end. The composition and air outlets are arranged such that, in use, the pair of air jets impinge on the composition plume.

Systems and methods are described herein for evaluation and adjustment of a left ventricular assist device (LVAD). The systems and methods may utilize at least a plurality of external electrodes to monitor cardiac electrical activity before and during LVAD therapy. The cardiac electrical activity as well as other information such cardiac sound information may be used to determine and adjust one or more LVAD output parameters such as pump speed.

Systems, assemblies, and methods for providing negative-pressure therapy to a tissue site are described. The system can include an absorbent and a sealing layer configured to cover the absorbent. The system can also include a blister fluidly coupled to the absorbent. The blister may have a collapsed position and an expanded position. A first check valve may be fluidly coupled to the absorbent and the blister and configured to prevent fluid flow from the blister into the absorbent if the blister is moved from the expanded position to the collapsed position. A second check valve may be fluidly coupled to the blister and the ambient environment and configured to prevent fluid flow from the ambient environment into the blister if the blister is moved from the collapsed position to the expanded position.

A device, system and method for characterizing a chest drainage apparatus. The device includes a source of both positive pressure and negative pressure, a conduit to provide the positive pressure and the negative pressure to the chest drainage apparatus and a sensor to detect a response of said chest drainage apparatus to either said positive pressure or said negative pressure. The system includes a device that controllably provides either a positive pressure or a negative pressure to the chest drainage apparatus and a sensor to record the effect of the positive pressure or the negative pressure to the drainage apparatus. The method includes the steps of (1) providing a source of both positive pressure and negative pressure; (2) controllably applying either the positive pressure or the negative pressure to the chest drainage apparatus; and (3) detecting a response from the chest drainage apparatus to the pressure application.

A medical device inspection scope may include a cylindrical outer layer having a diameter of less than 2 millimeters or even less than 1 millimeter, a cylindrical inner layer disposed concentrically within the outer layer, a circumferential space between the outer layer and the inner layer, and an inner lumen formed by the inner layer. The scope also includes multiple light transmitting fibers disposed in the circumferential space and a camera module disposed in the inner lumen. The light fibers may be designed to transmit illumination light and ultraviolet light. The scope may also optionally include a stiffening member.

A patient interface has a single loop headstrap and a mask for covering at least the nostrils of the user. The single loop headstrap extends from the mask at either end. A short length of supple conduit is coupled to the mask by a swivel or ball joint to allow rotation of the conduit relative to the mask through different angles and orientations.

A dialysis machine (e.g., a peritoneal dialysis (PD) machine) can include a pressure sensor mounted at a proximal end of a patient line that provides PD solution to a patient through a catheter. During treatment, an occlusion can occur at different locations in the patient line and/or the catheter. Elastic waves may be generated at a pump that introduces (e.g., for fill cycles) or withdraws (e.g., for drain cycles) the solution into/out of the patient line. For example, when the solution is introduced or withdrawn suddenly, elastic waves travel distally down the patient line until they encounter the occlusion, and are then reflected back (e.g., toward the pressure sensor).

An electronic smoking article includes a liquid supply including liquid material, a heater operable to heat the liquid material to a temperature sufficient to vaporize the liquid material and form an aerosol, a wick in communication with the liquid material and in communication with the heater such that the wick delivers the liquid material to the heater, at least one air inlet operable to deliver air to a central air passage upstream of the heater, and a mouth end insert having at least two diverging outlets.

An airway catheter (AC) includes a catheter tube having proximal and distal tube end faces in fluid communication with a tube lumen. The distal tube end face and a portion of the tube wall collectively form a distal tube end region. A plurality of side holes extend laterally through the tube wall. An inflatable cuff is secured to the outer tube wall surface with an inner cuff volume in fluid communication with the tube lumen via the side holes. A resistor plug has proximal and distal plug end faces in fluid communication with a plug lumen and is defined laterally by a plug wall. The resistor plug is maintained within at least a portion of the tube lumen in the distal tube end region with an outer plug wall surface being at least partially in compressive contact with the inner tube wall surface.

An automatic injection training device is presented having an elongated housing having a tubular demo container axially and rotationally fixed relative to the elongated housing and having a tubular wall, a reloadable plunger assembly having a plunger which is movable in the demo container between a first and a second position and a first energy accumulating member that moves the plunger from the first to the second position, an actuation assembly that holds the plunger in the first position, a biased needle cover that is movable in relation to the housing from an extended position to a retracted position and from the retracted position to the extended position, wherein the needle cover member interacts with the actuation assembly for releasing the plunger when the needle cover member is moved distally.