Abstract: A self-contained pack assembly includes all of the disposable components of an extracorporeal support circuit for cardiac bypass surgery. The pack assembly comprises a blood reservoir, a blood oxygenator, and a carrier for vertically mounting the blood reservoir and blood oxygenator. Trays may be releasably attached to the carrier to serve as containers for coiled tubing used in the support circuit.

Abstract: A self-contained pack assembly includes all of the disposable components of an extracorporeal support circuit for cardiac bypass surgery. The pack assembly comprises a blood reservoir, a blood oxygenator, and a carrier for vertically mounting the blood reservoir and blood oxygenator. Trays may be releasably attached to the carrier to serve as containers for coiled tubing used in the support circuit.

Abstract: A self-contained pack assembly includes all of the disposable components of an extracorporeal support circuit for cardiac bypass surgery. The pack assembly comprises a blood reservoir, a blood oxygenator, and a carrier for vertically mounting the blood reservoir and blood oxygenator. Trays may be releasably attached to the carrier to serve as containers for coiled tubing used in the support circuit.

Abstract: A blood treatment system has a housing formed of transparent plastic material configured so that substantially the entire blood flow path is visible. A generally planar blood filtration media assembly divides a blood treatment chamber within the housing into first and second interior spaces that are visible through the transparent housing, with a cardiotomy manifold in fluid communication with the first interior space and a venous blood inlet in fluid communication with the second interior space. A generally planar blood defoamer media assembly is provided generally parallel with and spaced apart from the blood filtration media assembly. The blood defoamer media assembly divides the second interior space from the blood storage chamber. The blood flow path along each side of the blood filtration media assembly and each side of the blood defoamer media assembly is visible.

Abstract: A volume controlling support for a flexible venous reservoir that permits the reservoir to have a clear flow passage from its inlet to its outlet which is visible and accessible to the perfusionist. The portion of the reservoir through which the major part of the blood flow is occurring can be manipulated if necessary, particularly for the purpose of manipulating the reservoir to improve the clearance of air bubbles in the blood. Preferred embodiments also enhance the convenience for the perfusionist by permitting right-handed or left-handed operation, and by providing an approximate read-out of the volume of blood contained in the reservoir.

Abstract: A blood reservoir mounting bracket supports alternate sizes of blood reservoir assemblies. The reservoir mounting bracket has a reversible reservoir mounting frame, with mounting pins on one side thereof arranged in a first pattern for the mounting holes of one size of a blood reservoir assembly, and mounting pins on its other side arranged in a second pattern for the mounting holes of a second, different sized blood reservoir assembly. Alternatively, the reservoir mounting bracket has a reservoir mounting frame with retractable pins therein for use in adapting to differently arrayed holes on different sized blood reservoir assemblies. The reservoir mounting bracket further has an oxygenator holder which allows orientation of the oxygenator in a plurality of positions.

Abstract: A blood handling system has a first blood handling apparatus mounted on a second blood handling apparatus with a mounting apparatus. The mounting apparatus has two primary components: a retention sleeve attached to a stem that protrudes from the lower portion of the first blood handling apparatus; and a slotted plate that is attached to a stem on the second blood handling apparatus. The retention sleeve has a track for receiving the slotted plate and a flexible tab, with a protruding tooth, that securely engages the slotted plate in a locked position. If it becomes necessary to disconnect the first blood handling apparatus from the second blood handling apparatus during surgery, the tab may be easily moved into an unlocked position, allowing the disk to slide freely out of the track so that the units can be easily separated from each other.

Abstract: A modular blood treatment system with a blood treatment cartridge having a blood treatment media receiving opening defining an entrance of a first chamber. The first chamber defines a first interior space and a second interior space. At least one cardiotomy blood sucker port is in fluid communication with the first interior space via a cardiotomy manifold. The cardiotomy manifold preferably defines a downward curving surface from the at least one cardiotomy blood sucker port to the first interior space having a radius of about 2.54 to 7.62 cm. A venous blood inlet is in fluid communication with a second interior space within the interior space. A first blood treatment media is interposed between the first interior space and the second interior space. A second blood treatment media is interposed between the second interior space and the blood treatment media receiving opening. A blood storage section has an outlet port extends substantially across the blood treatment media receiving opening.

Abstract: A novel integral cardiotomy/venous blood reservoir, blood oxygenator and heat exchanging device, method of making a blood oxygenating and heat exchanging device and an extracorporeal circulatory support circuit. The reservoir includes a novel blood defoaming and filtering chamber closely receiving filtering and defoaming media. The blood oxygenating and heat exchanging device includes thermal formed housing portions, and a heat exchanging barrier, blood oxygenating medium and/or filtering medium, which are sealed by potting compound at one time. The oxygenating medium comprises a hollow fiber type medium, with its ends left open to be sealingly mounted in a gas path by a novel mounting bracket.

Abstract: A blood reservoir adapted for use in an extracorporeal circulatory support circuit. The blood reservoir includes a visible inlet tube that extends vertically outside the housing of the reservoir to allow visual observation of venous blood flowing in the inlet tube. The inlet tube is releasably held generally adjacent the top of the housing to allow the reservoir to be converted between top and bottom mounted venous blood inlets with a single inlet, as well as permitting the inlet tube to be moved to a position extending downwardly from the reservoir to allow draining the reservoir through the inlet tube after surgery. A generally funnel-shaped inlet portion may be provided in the inlet adjacent the chamber to decelerate blood before it enters the chamber, and a diverter cone may be provided over a venous inlet portion to divert the incoming blood.

Abstract: An aortic cannula having a distal end adapted to be inserted into the aorta to deliver fluid to the aorta has a flexible tip with a plurality of helical slits that widen and narrow in response to the pressure in the cannula, widening in response to an increase in pressure to reduce exit velocity of the fluid.

Abstract: A novel integral cardiotomy/venous blood reservoir, blood oxygenator and heat exchanging device, method of making a blood oxygenating and heat exchanging device and an extracorporeal circulatory support circuit. The reservoir includes a novel blood defoaming and filtering chamber closely receiving filtering and defoaming media. The blood oxygenating and heat exchanging device includes thermal formed housing portions, and a heat exchanging barrier, blood oxygenating medium and/or filtering medium, which are sealed by potting compound at one time. The oxygenating medium comprises a hollow fiber type medium, with its ends left open to be sealingly mounted in a gas path by a novel mounting bracket.

Abstract: An in-line quick connect apparatus for the changeover of fluid lines in a medical fluid circulating system and systems incorporating the quick connect apparatus.

Abstract: A novel integral cardiotomy/venous blood reservoir, blood oxygenator and heat exchanging device, method of making a blood oxygenating and heat exchanging device and an extracorporeal circulatory support circuit. The reservoir includes a novel blood defoaming and filtering chamber closely receiving filtering and defoaming media. The blood oxygenating and heat exchanging device includes thermal formed housing portions, and a heat exchanging barrier, blood oxygenating medium and/or filtering medium, which are sealed by potting compound at one time. The oxygenating medium comprises a hollow fiber type medium, with its ends left open to be sealingly mounted in a gas path by a novel mounting bracket.

Abstract: A blood reservoir adapted for use in an extracorporeal circulatory support circuit. The blood reservoir comprises a housing having a chamber for holding blood, an outlet in the housing for draining blood from the chamber, and first and second inlets for supplying venous blood to the chamber. The first inlet includes an first inlet tube extending from the top in the vertical-downward direction into the chamber, and the second inlet tube having a generally inverted U-shape extending into the chamber from the bottom of the chamber. A bowl-shaped fluid trap is positioned to trap fluid adjacent the downstream ends of the first and second inlet tubes. A novel fluid trap having an upwardly facing fluid trap portion, and an inverted bowl shaped portion is also disclosed.

Abstract: An apparatus for handling a patient's blood during a first medical use which is convertible for a second medical use comprises a first device, for adapting the reservoir for use during a first medical use and a second device for adapting the reservoir for a second medical use after the first medical use. A lever pivotally mounted on the apparatus, engages at least one of the devices so that pivoting the lever causes the devices to move, moving the first device out of its operative position and moving the second device into its operative position. A lock for the lever locks the devices in place, and a valve mechanism automatically selects a proper outlet.

Abstract: An apparatus for handling a patient's blood during a medical procedure which is convertible for use after the procedure for at least one further use. The apparatus comprises a reservoir having a port comprising at least one opening. A primary device, alignable with the port for adapting the reservoir for use during the procedure. The apparatus further comprises one or more secondary devices each alignable with the port means for adapting the reservoir for one or more further uses after the procedure. The primary device and the secondary devices are slidably mounted on the apparatus between tracks, with the primary device initially aligned with the port to allow the reservoir to be used during the medical procedure. The tracks allow the primary device to be moved out of alignment with the port and allow at least one of the secondary devices to be moved into alignment with the port so that the reservoir can be used after the medical procedure.

Abstract: A blood reservoir adapted for use in an extracorporeal circulatory support circuit. The blood reservoir comprises a housing having a chamber for holding blood, an outlet in the housing for draining blood from the chamber, and an inlet for supplying venous blood to the chamber. The inlet includes an inlet tube positioned at a greater elevation in use of the reservoir than the minimum specified level of fluid in the reservoir. A cup-shaped fluid trap is mounted on the inlet tube to trap fluid at the downstream end of the inlet tube. A novel deflector disk is also provided to deflect other fluid from the fluid trap and to mount the fluid trap on the inlet tube.

Abstract: A mounting assembly for holding a heat exchanger particularly of the type used in administering cardioplegia during heart surgery. The mounting assembly both mounts the heat exchanger and provides heatexchanging fluid (e.g., water) to the heat exchanger. The mounting assembly also includes a valve and sealing mechanism which are simultaneously operated to ensure that the valve is not opened until after the heat exchanger is properly sealed. The sealing mechanism includes an expandable seal that is designed to hold the heat exchanger on the mounting assembly.

Abstract: A connection system for facilitating connections with an apparatus for handling medical fluids, such as blood, to adapt the apparatus for one or more particular uses. The system includes one or more connector blocks having an access opening and at least one connection device, such as a fitting for mounting medical grade tubing, in fluid communication with the access opening, and a seal tray for slidably mounting a connector block and initialy sealing the access opening in the connector block. A track and a part are provided on the apparatus, with the track being adapted to slidably mount the connector block on the apparatus such that the access opening of the block can be moved into and out of alignment with the port. The seal tray and the track are so configured that the seal tray can be aligned with the track to allow the connector block to be moved at least partially off of the sealing tray onto the track, thereby to bring the connector block's access openings into alignment with the port.