Abstract: A valve assembly for use with an aerosol container for controllably dispensing a substance disposed within the container under pressure of a propellant also contained therein. The valve assembly provides a high degree of precision control in the dispensing of the substance using a rotary actuator cooperatively engaged with a camming arrangement which transfers large rotary motion into small valve displacing linear motion. The valve is sealed by a resilient gasket which is protected from the deteriorating effects of chemicals in the substance and/or propellant by a flexibly deformable Teflon liner.

Abstract: An anatomic brace comprises a wide, elastic belt fashioned with a pouch, in combination with a semi-wrap-around polyurethane foam splint cured in place in the pouch while the belt is tightly fitted to the patient.

Abstract: A cellular synthetic medical cast is made using fabric strips and a dispenser unit containing blowing agent and a water-activatable polyurethane prepolymer under superatmospheric pressure. A trimerizing catalyst is infused in the prepolymer mass immediately before the composition is dispensed in a bead onto the fabric strip; and thereafter, mechanical compressive force is applied to the foam bead to dimension it, embed it in the fabric and regulate the degree of reticulation. The impregnated strips are wrapped to form the cast and contacted with moisture to produce rapid cure of the prepolymer.

Abstract: This invention concerns apparatus for injecting a special ingredient into a pre-filled product container having superatmospheric internal pressure. Structurally, a coupling member is fabricated to define a cavity that snugly receives a portion of the container body to establish alignment therewith. This coupling member includes a mounting structure for use in positioning a syringe assembly with respect to a pierceable portion of the container body. A syringe assembly includes a syringe body that is mounted on the mounting structure and defines an internal chamber for containing a metered amount of a fluid product ingredient or amendment, the syringe assembly further including a cannulated needle fastened to the syringe body in fluid-transfer relationship with the product ingredient chamber. A wrench member is assemblable with the coupling member and includes an actuator for selectively engaging the syringe assembly and forceably reducing the internal volume of the product ingredient chamber.

Abstract: Dispensing apparatus for use in making a foam medical cast comprises a valved canister charged with foam-making chemicals, a rolled-up strip of bandage fabric, a yoke arrangement for holding and allowing rotation of the bandage roll and having a mount for securing the canister in rigid position, and a manually operable handle pivotally mounted to the yoke arrangement. The handle cooperates with the yoke arrangement in enabling the imposition of linear actuating force on the canister valve so that operation of the handle opens the valve, simultaneous transit of the yoke arrangement to unroll the bandage produces a medical cast preform of foam deposited on the outstretched bandage strip.

Abstract: A foam medical cast is formed by dispensing a bead of a pressurized polyurethane prepolymer composition onto a bandage strip making a cast preform. The dispensed prepolymer composition is allowed to expand and foam under ambient conditions, and the resultant preform is wrapped over an undergarment disposed on a human body part to be immobilized. The undergarment is premoistened and the wrapped cast preforms are moistened in order to activate the prepolymer composition. The cast is then allowed to cure to a rigid foam material.