Abstract: A baby's toy having a flexible arched support, fasteners at each end of the arched support for attaching it to a crib, things to arouse attention, and belt-like members for connecting the things to arouse attention to the arched support. The arched support has an elongated body element formed from a foamed plastic material which is flexible and substantially noncompressible under load. The elongated foamed plastic material is covered, preferably with cloth. In a preferred embodiment, the arched support has two generally elongated body elements made of the substantially noncompressible foamed plastic material.

Abstract: A toy comprising a hollow cylindricl body having top, bottom and side portions, a centrally disposed spiral passage, and at least one spherical element which can move along said passage as the toy is handled. The toy can be assembled from two semi-cylindrical halves and means are provided for easily aligning the halves prior to final assembly. The toy may be used in combination with rings, the first of which is adapted to receive the cylindrical toy and the second of which is adapted to receive the toy and the first ring.

Abstract: An apertured film, suitable for use as a sanitary napkin cover which passes body fluids, is provided. The film comprises a first layer of a first polymeric material and a second layer of a second polymeric material. Both layers are apertured for the transmission of body fluids therethrough. The first polymeric material exhibits a melting point temperature which is greater than the melting point temperature exhibited by the second polymeric material. The apertured film may be thermally bonded by heating the film to a temperature in excess of the melting point temperature of the second layer material and below the melting point temperature of the first layer material. The unmelted first layer will thereby maintain the integrity of the apertured film when the second layer is in its thermally softened condition.

Abstract: A disposable diaper has a moisture impermeable backing sheet, a fibrous absorbent batt and a flexible hydrophobic facing sheet overlying the batt, the components being secured together to form a sandwich structure; the facing sheet has an aperture in the central crotch region of the diaper with zones of elastication in the facing sheet tending to apply tensioning forces to the facing sheet for urging the facing sheet (at least in the regions adjacent the aperture) away from the underlying batt structure. With advantage the facing sheet is a breathable web of bonded fibres highly resistant to permeation of moisture. It is preferred that the absorbent batt structure comprises a wood-pulp batt and a non-woven sheet of moisture permeable material overlying the absorbent batt.

Abstract: A test cell comprises a first enclosure which is closed at one end and open at the other. There are means located near the closed end for supplying conditioned air to the first enclosure and an aperture in the bottom wall of the enclosure near its open end. A second enclosure is secured to the lower surface of the first enclosure so that the interiors of the two enclosures are in fluid communication. A porous plate is mounted within the second enclosure to provide a fluid reservoir below it and a lead space above it. There are means associated with the second enclosure for conducting a test liquid to the interior thereof. An apertured sample holder may be used to hold the test specimen in place during use. The first enclosure is preferably divided into first and second compartments by a slotted divider. The test cell may optionally include a baffle means near its closed end to reduce eddying of the air and to provide a uniform air flow pattern across the test specimen.

Abstract: A prophylactic or contraceptive device made from a thermoplastic polyurethane material having a generally cylindrical configuration with a closed end.

Abstract: Peristaltic pump including a housing having a backing plate and an upstanding arcuate wall, a pump shaft mounted in the backing plate, and a rotatable pump head mounted on the shaft and comprising at least one roller means for squeezing a segment of flexible tubing against the arcuate wall to achieve pumping of a liquid through the tubing. The pump head includes a pivotable handle having a recessed portion which cooperates with a ledge in the pump shaft to prevent the pump head from moving upwardly from the shaft when the pump is in operation. Also included are means comprising a roller bearing and clutch assembly for preventing rotation of the pump head in an incorrect or undesired direction during manual operation.

Abstract: Dialysis apparatus is arranged to enable convenient measuring of ultrafiltration rate from liquid, such as blood, that is to be dialyzed. Dialyzer can have, downstream of a dialysis chamber, a dialyzate passageway through which the ultrafiltration flow rate can be readily measured as by introducing a gas bubble into the dialyzate and timing its movement through the passageway. An air-injection attachment can be fitted to the dialyzer or to a dialyzate supply system, to inject the gas bubble for such measurement. Bubble injection can also be effected in a flow rate measuring passageway downstream of the dialyzer. Flow rates of dialyzate into and out of dialyzer can be compared to show ultrafiltration while dialyzing. Dialyzer can also have end caps with thickned closure walls for better ultrasonic welding to the dialyzer body, and the caps can have vents that simplify testing of the seals between the caps and the dialysis membrane body.

Abstract: An apparatus for heating or cooling physiological fluids, such as whole blood and blood plasma, or liquids which are used in the treatment of such physiological fluids, wherein at least one thermoelectric device is used for the heating or cooling.

Abstract: Device, apparatus, and method for the irradiation of fluids, especially physiological fluids such as blood. The device comprises a hollow casing having two end walls, at least one element adapted to transmit radiant energy disposed within said casing with an end thereof being secured in one of the end walls, and an inlet and an outlet in said casing between the end walls. The outer peripheral surface of the end portion of the element secured in the end wall is contacted by a material whose refractive index is equal to or less than the refractive index of the element. Preferably, the device employs a plurality of radiant energy transmitting elements in the form of fibers. Apparatus includes the aforementioned device and means for directing radiant energy onto the element(s) for transmitting radiant energy.

Abstract: Device useful as a heat exchanger for blood or as an apparatus in which blood may be treated or reacted with selected reactants. Device comprises hollow tubing which has plastic monofilament placed in a generally spiral configuration around its outer surface, said monofilament being in the form of continuous or discontinuous projections or ridges. Strands of wire may be substituted for the plastic monofilament. Hollow tubing having such plastic monofilament or strands of wire is also included.