Abstract: A venous reservoir including a blood collecting chamber with heat seamed peripheral edges incorporating fillet-defining beads for enhanced blood flow and debubbling. Flow diverters are provided vertically between lower inlet tubes and upper air vents, and laterally between the inlet tubes and an outlet tube. The diverters are vertically spaced and upwardly inclined toward the vent within the flow path of the blood between the inlet and outlet tubes for an enhanced upward directing of entrapped air toward the vents and groove extensions thereof within the chamber.

Abstract: An improved medication administration system includes a series of one way valves disposed closely adjacent and in direct fluid communication with an auxiliary IV line leading to a patient. A plurality of syringes filled with various selected medications are each secured in a tray against axial and lateral movement by depressing them into correspondingly dimensioned longitudinal grooves. The flanges of the syringes abut a lip of the tray to further restrict axial movement. The nozzles of the syringes are connected to the inlets of the valves so that medication can be adminstered intravenously by simply depressing the appropriate syringe plunger. The tray is surrounded by a supporting outer box which includes retractable clamps for fastening the tray to an operating table. A second similarly shaped box is adapted to be clipped to the first box or clamped to the table. The second box can contain miscellaneous medical equipment.

Abstract: A specially designed first adaptor or connector is permanently attached to a blood source secured from a donor and kept at a hospital blood bank. This first connector is color-coded and has the type blood in the source imprinted thereon. Further, it includes a blood carrying projection of given dimensions. A second connector, in turn, is permanently secured to a blood infusion line or tube leading from a potential recipient or patient's vein. This second connector is also color-coded and provided with an imprint of the patient's type blood. Further, the connector includes a blood receiving bore of given dimensions, the color coding, printing of the blood type and the given dimensions for the second connector being determined by the blood type of the patient.

Abstract: A system for autotransfusion has an aspirating wand or tube coupled to a vacuum source through a reservoir for receiving aspirated blood. From that reservoir blood flows to a receiving bag in a relatively low position below the elevation of the patient. When there is sufficient blood supply in the bag, the bag is elevated from its lower position to a point higher than the patient. Blood then flows from the elevated bag by gravity through a conducting tube and a needle into the patient. When the bag is then substantially empty, it is again lowered to an elevation lower than the patient for repetition of the operation. If desired, an anticoagulant can be introduced into the aspirated blood.

Abstract: A bone marrow transplant method and apparatus has been devised for the efficient recovery of bone marrow from a donor or patient by inserting a pair of aspiration needles at the intended site of removal and, through connection with a pair of syringes, the pressure is regulated to bring about selective removal of bone marrow and sinusoidal blood through one of the aspiration needles while positively forcing an intravenous solution through the other of the aspiration needles to replace the bone marrow removed from the site. The bone marrow and sinusoidal blood are drawn into a chamber for mixture with another intravenous solution and thereafter forced into a collection bag. A disposable assembly is provided for ready interchangeable use in association with a fluid flow and valve control unit in carrying out the method and principles of the present invention.

Abstract: A polyvinyl chloride composition comprising 100 parts by weight of a polyvinyl chloride and 5 to 150 parts by weight of a high molecular weight, modified polyester which is prepared by reacting (A) a polyester having a carboxyl group at terminal thereof and containing an ester unit of total carbon atoms of 8 to 10 in the diol component and the dicarboxylic acid component with (B) a compound having epoxy groups at both terminals thereof, said polyvinyl chloride composition having excellent acticoagulant activity and hence being useful for various blood handling devices including blood transmitting tube, as well as other utilities such as packages for foodstuffs as in the conventional polyvinyl chloride composition.

Abstract: Medical bags composed of plastic sheets jointed at their edges and a fluid charging/discharging tube sealed between the edges of the sheets have suffered, due to the use of a mold having smooth and straight land conforming with the surface of the tube, various problems such as formation of burrs by the displaced molten plastic material on the inner side of the product bag, weakening or generation of pinholes around the free end of the tube attributable to excessive thinning of the sheets and so forth. According to the invention, these problems are overcome thanks to the use of a mold which has a central first land of an inside diameter slightly smaller than the sum of the tube diameter and thicknesses of sheets and at least one additional land provided at each side of the first land, the additional lands having inside diameters increasing successively and slightly greater than that of the first land.

Abstract: Disclosed is an exchange transfusion device with two coupled, automatically driven syringes, one in a blood withdrawal system and one in a fresh blood injection system; the coupling insuring that the volume of blood removed from a baby in the withdrawal system will be simultaneously replaced by an equal volume of fresh blood from the injection system. This simultaneous equivolumetric withdrawal and injection overcomes the physiological problems arising from the non-simultaneity of equal volumes of withdrawal and injection. The syringes in the withdrawal and injection phase of an exchange transfusion are driven at a slow steady rate, but on the refill and discard phase are driven at a high rate to avoid clotting of standing blood in the withdrawal and injection systems.

Abstract: A fluid transfer assembly includes first and second connector members, each associated with a fluid conduit and having a meltable wall which normally seals the connector member, and thus the associated conduit. The connector members can be coupled together, with the meltable walls positioned in facing contact. One of the meltable walls includes a radiant energy absorbing material. The other meltable wall is relatively non-absorbant of radiant energy, but does conduct heat energy. By exposing the coupled assembly to a source of radiant energy, the one wall melts in response to thermal radiation, while the other wall conducts heat energy from the melting wall to also melt. By melting, the walls open a fluid path between the fluid conduits.

Abstract: A blood donation unit in which a phlebotomy needle is coupled on one conduit to a source of anticoagulant contained in a flexible bag and on another conduit to a flexible collection bag. The anticoagulant bag and collection bag are placed in a chamber within which a vacuum is created, preferably by a hand pump operated by the donor. A rigid plate is disposed between the two bags. The blood flow from the donor is maintained at an adaquate flow level by the donor's pumping which provides a pressure differential between the bags and the needle. The whole blood is mixed with anticoagulant immediately after passing through the phlebotomy needle. The ratio of whole blood to anticoagulant is independent of the volume of whole blood collected and is fixed by the ratio of the surface areas of opposing bag surfaces at the interface with the plate.