A fluid dispensing system and treatment system may be used to purge cleaning fluids from lumens of an endoscope. A portion of a fluid chamber can be filled with liquid by providing liquid through an inlet of the fluid chamber. A sealing pressure can be generated with gas in the fluid chamber and additional filling of the fluid chamber through the inlet can be limited. Liquid from the fluid chamber can be dispensed responsive to the sealing pressure. The dispensing can comprise expelling liquid through an outlet of the fluid chamber utilizing gas. The gas may be pressurized in multiple reservoirs, each one being dedicated to a purge line of the treatment system.

Devices systems and methods are disclosed for removing secretions from the lumen of a functional assessment catheter for the lungs. The system comprises a flushing unit configured to deliver a clearing fluid to the lumen of the pulmonary catheter to remove debris, secretions, or moisture from the lumen or sensors.

According to one implementation an apparatus for bacterially disinfecting a surface is provided. The apparatus includes a flexible body that contains therein at least one radially emitting optical fibers that is configured to emit bacterial disinfecting light. The radially emitting fibers having an axial and/or radial freedom of movement within a channel in which it is housed inside the flexible body such that when the flexible body changes shape the axial and/or radial freedom of movement reduces the amount of tensile stress applied along the length of the radially as compared to an amount of tensile stress that would otherwise be applied to the radially emitting fiber in an absence of the axial and/or radial freedom of movement of the radially emitting fiber inside the channel.

An intravascular medical device assembly, including a tubular member or catheter defining a lumen, an elongate medical device disposed within the lumen, and a cap attached to and covering the distal end of the tubular member, where the cap is configured to prevent contamination and damage of the elongate medical device. The elongate medical device includes an optical fiber for shape sensing and magnetic elements for magnetic tracking of the device assembly during advancement along a patient vasculature. The cap is configured to form a fluid tight seal with the tubular member.

A valve assembly for a dental suction system. The valve assembly includes a valve body having an inlet, an outlet and a fluid flow path extending between the inlet and the outlet. The valve assembly also includes a valve plug positioned at least partially within the valve body and including a through-passage. The valve plug is rotatable relative to the valve body to selectively alter a flow of fluid along the fluid flow path. The fluid flow path exhibits a varied cross-sectional area along a length of the fluid flow path.

The present disclosure relates to a bypass line for establishing a fluid communication between a dialysis liquid inlet line of a treatment apparatus, by which dialysis liquid is fed out of the interior of the treatment apparatus and into an exterior of the treatment apparatus, and a dialysate outlet line, by which dialysate is fed back from the exterior into the interior of the treatment apparatus. The bypass line has at least a first connector, a second connector and a non-return valve. The first connector is used to connect the bypass line to a connector of the dialysis liquid inlet line to achieve a fluid communication. The second connector is for connecting the bypass line to a connector of the dialysate outlet line while achieving a fluid communication. The non-return valve only allows flow through the bypass line from the first connector towards the second connector.

Devices systems and methods are disclosed for removing secretions from the lumen of a functional assessment catheter for the lungs. The system comprises a flushing unit configured to deliver a clearing fluid to the lumen of the pulmonary catheter to remove debris, secretions, or moisture from the lumen or sensors.

A cold and heat exchange system for a cardiac surgical operation with cardiac arrest, comprising: an ice water tank (15), a primary circulation water tank (11), and a secondary circulation water tank (16). Side walls of the primary circulation water tank (11) and the secondary circulation water tank (16) are each provided with an overflow orifice which is connected to the ice water tank (15) through a circulation pipe (14). A first roller pump (12) is mounted on a first hose (13). A second roller pump (18) is mounted on a second hose (17). The primary circulation water tank (11) is mounted on a first loop (5) and a second loop (6). The secondary circulation water tank (16) is mounted on a third loop (1).

Systems, devices, and methods for treating a tissue site on a patient with reduced pressure are presented. In one instance, a reduced-pressure treatment device to treat a tissue site with reduced pressure may include a pump control unit fluidly separate from a collection unit. Pump energy may be provided by the pump control unit to deflect one or more diaphragms within the collection unit to create reduced pressure. Other systems, devices, and methods are presented.

A breathing treatment apparatus delivers breathing gas to a user. The apparatus may be configured to comprise one or more sensors for sensing microbial growth within the apparatus.