Abstract: A blood conditioning device having a housing with a helical blood acceleration section which includes a helical flow path for impressing centrifugal forces on the entrained bubbles in the blood to concentrate them towards the center of the flow path, a bubble pick off tube aligned with the centerline of the acceleration section which collects and recirculates the bubbles to the cardiotomy reservoir upstream of the device during operation, and a blood filtration section to intercept the flow of particles in the blood.

Abstract: A method and device for removing gas from gas containing blood. A non-rotating cyclone eddy chamber has the blood circulating therein and centrifugal force separates the blood radially outward and the gas radially inward. The cyclone inlet comprises a blood inlet channel that extends in a helical circular form developed to narrow in funnel like manner in the direction of flow toward the cyclone eddy chamber to accelerate the blood flow entering that chamber tangentially. A gas outlet is arranged in the radially inner center of the cyclone eddy chamber path while the blood outlet is coaxial and outward of the gas outlet.

Abstract: A method and apparatus for removing air from blood which contains air. The air-containing blood is conducted through a cyclone device as a rotating cyclone stream, so that centrifugal forces for the separation of the air from the blood are produced in the rotating cyclone stream.

Abstract: The bubble trap is used in extracorporeal blood flow circuits of the type used for open heart surgery. The trap is placed in the external blood flow and it removes small micro bubbles from the blood prior to delivery to the body. The device accelerates the blood flow radially and the small bubbles migrate toward the center of the accelerated flow. These bubbles are concentrated at this location and the blood that contains the micro bubbles is extracted and recirculated before the degassed blood flow is returned to the body.

Abstract: A blood suction apparatus for aspirating blood from a patient is developed as a one-hand held instrument having a handgrip. A centrifuge chamber, shaped to narrow from its tangentially directed top blood inlet to its bottom blood outlet end, like a funnel. A gas outlet opening from a gas collection space above the chamber and to which a suction device can be connected. A blood outlet at the lower end of the centrifuge chamber with both outlets connectable to a source of suction. The orientations of the handgrip and of elements passing through the handgrip are disclosed.

Abstract: The downstream end section of a transporting lumen (4) for the irrigating fluid is constructed as a nozzle (14), which directs a strong, sharp jet over a free segment (130) into the inlet (16) of a discharging lumen (6). The irrigating fluid jet produces a suction effect, by means of which it aspirates the material from the treated organ (8) and discharges it through the discharging lumen (6). To intensify the suction effect of the irrigating fluid jet, the discharging lumen, when viewed from its inlet (16), consecutively contains the following elements: a mixing tube (18), a diffuser (20) and a discharging duct (22).

Abstract: A high pressure liquid dispenser for the delivering preferable sterile liquid with high pressure to a catheter. The dispenser includes a flexible or weak wall storage container in which the liquid to be dispensed is stored and a conduit from the front end wall of that container for dispensing liquid to a catheter. A pressure container around the storage container is stiff enough to take up the pressure of the liquid and the deformation of the storage container, so that the pressure of the liquid elevated by the pump piston may be substantially greater than without the protective pressure container around the storage container. A fluid actuated drive acts on the pump piston. The piston of the fluid actuated drive and the pump piston are respectively so shaped as to provide a pressure boost for producing higher pressure in the liquid in the storage container to produce the jet.