A blood processing apparatus may include a heat exchanger and a gas exchanger. At least one of the heat exchanger and the gas exchanger may be configured to impart a radial component to blow flow through the heat exchanger and/or gas exchanger. The heat exchanger may be configured to cause blood flow to follow a spiral flow path.

Core annular flow is used to enable the subcutaneous delivery of a viscous fluid such as a protein therapeutic formulation. The high-viscosity fluid is surrounded by a low-viscosity fluid, and the low-viscosity fluid lubricates the passage of the high-viscosity fluid. This allows the use of protein formulations that have a higher concentration and a higher viscosity at comparatively reduced injection forces and reduced injection times. Several different embodiments of injection devices that provide core annular flow are described herein.

Systems and methods for delivering a medical fluid are disclosed. The system includes a fluid flow path, a fluid administration device adapted to deliver the medical fluid through the fluid flow path, and a controller in communication with the fluid administration device. The method includes using the system to determine a desired flow rate of the medical fluid at a distal end of the fluid flow path based upon at least a desired flow profile of the medical fluid at the distal end. The method further includes initiating a fluid delivery operation by delivering the medical fluid through the fluid flow path according to fluid delivery parameters provided to the fluid administration device by the controller. Information about the fluid delivery operation may be received at the controller which executes a control function to adjust the fluid delivery parameters based on the received information.

A transition adapter component of a ventilator aerosol delivery system for delivering an aerosol to a patient, includes a housing having a proximal end and a distal end, the proximal end having an aerosol passage for receiving an aerosol produced by a heated capillary and a gas connection port for receiving carrier gas from a ventilator, which is in communication with a plurality of gas entry ports within the transition adapter. An inner cavity of the transition adapter receives the aerosol from the heated capillary and the streams of carrier gas from the plurality of gas exit ports within the transition adapter and directs the streams of carrier gas at least partially encircling and in parallel with the aerosol. An exit port on the distal end of the transition adapter housing delivers an entrained aerosol to an aerosol delivery connector.

Some embodiments of the invention relate to an inhaler device for pulmonary delivery of at least one substance from a drug dose cartridge to an inhaling user, comprising: a first conduit for conducting a carrier airflow to a proximal opening of a mouthpiece for use by the user; a holder configured to position the dose cartridge within the carrier airflow; and a second conduit for conducting a shunting airflow to the mouthpiece without passing through the dose cartridge position. In some embodiments, a controller connected to a valve controls a rate of carrier airflow, for example by controlling the shunting airflow, based on a sensor indication of airflow rate and a target airflow profile.

Sorbent cartridge systems useful in regenerating or purifying dialysis solutions are described as well as methods to regenerate or purify spent dialysis solutions. Dialysis systems using the sorbent cartridge system of the present invention are further described.

Some embodiments of the invention relate to an inhaler device for pulmonary delivery of at least one substance from a drug dose cartridge to an inhaling user, comprising: a first conduit for conducting a carrier airflow to a proximal opening of a mouthpiece for use by the user; a holder configured to position the dose cartridge within the carrier airflow; and a second conduit for conducting a shunting airflow to the mouthpiece without passing through the dose cartridge position. In some embodiments, a controller connected to a valve controls a rate of carrier airflow, for example by controlling the shunting airflow, based on a sensor indication of airflow rate and a target airflow profile.

Some embodiments of the invention relate to an inhaler device for pulmonary delivery of at least one substance from a drug dose cartridge to an inhaling user, comprising: a first conduit for conducting a carrier airflow to a proximal opening of a mouthpiece for use by the user; a holder configured to position the dose cartridge within the carrier airflow; and a second conduit for conducting a shunting airflow to the mouthpiece without passing through the dose cartridge position. In some embodiments, a controller connected to a valve controls a rate of carrier airflow, for example by controlling the shunting airflow, based on a sensor indication of airflow rate and a target airflow profile.

An adaptor for delivering an aerosolized active agent to a patient with concomitant positive pressure ventilation includes an aerosol flow channel having an aerosol inlet port and a patient interface port, and defining an aerosol flow path from the aerosol inlet port to and through the patient interface port; and a ventilation gas flow channel in fluid communication with the aerosol flow channel and having a gas inlet port and a gas outlet port, and defining a ventilation gas flow path from the gas inlet port to and through the gas outlet port, wherein the ventilation gas flow path is at least partially offset from the aerosol flow path and at least partially encircles the aerosol flow path. Systems and methods for delivering an aerosolized active agent to a patient with concomitant positive pressure ventilation incorporate the adaptor.

A fluid delivery system having a fluid delivery device configured to deliver a fluid in a spray form. The fluid may be a first fluid and a second fluid mixed together in a manner causing the first fluid to be delivered in a spray form. The first fluid may be a viscous fluid, such as a hemostatic agent, and the second fluid may be a pressurized fluid. The second fluid may be directed at the first fluid to cause the first fluid to be delivered in a spray form. The fluid delivery device may be adjustable to adjust the spray form. The lumens through the fluid delivery device and through the fluid delivery system are formed by channel walls and are uninterrupted by additional/separate components (e.g., valves, etc.) therein affecting fluid flow through the lumens.