Abstract: A knee pad for use on a supporting surface, and not attached to a person's knee, to provide support and cushioning to a person's knee. The pad has a lower region having a bottom for contacting the supporting surface, and a contoured upper region for contacting the front portion of the person's knee. The bottom has a frictional surface to resist sliding with respect to the supporting surface. Various properties of the upper region, relating to its contours and fitting with respect to the knee, are disclosed, particularly a concavity in the top of the pad. The concavity may be vacant. The top of the concavity may adjoin the top of the pad. The concavity may have a secondary inner concavity perimeter. The pad may have a plurality of outer perimeters, defining decreasing areas within the perimeters, from bottom to top of the pad.

Abstract: A hot or cold compress a layer of substituted urea/urethane hydrogel material bonded to a porous substrate. The hydrogel material is made up of a high molecular weight polyol, a toluene diisocyanate prepolymer and water. Generally, the water and polyol each comprises between about 40 to 50% by weight of the hydrogel, with the diisocyanate prepolymer making up the remaining 12-16% by weight. The hot or cold compresses of the present invention are formed by preparing the hydrogel material and then placing a porous substrate in contact with the hydrogel prior to the time that gel formation is complete. In this manner, the hydrogel becomes integrally bonded to the porous substrate. Other materials such as terrycloth can be bonded to the porous substrate prior to bonding the substrate to the hydrogel. Articles useful in therapy can then be formed by attaching the edges of the cloth/porous substrate to form the desired object.

Abstract: A lightweight preformed stable gel composition formed by admixing a gel mixture of silicon gels and catalyst with glass microspheres, pouring the mixture into a mold and reacting the mixture. The resulting composition is a preformed stable silicon gel with glass microspheres dispersed throughout.

Abstract: High absorption body powder compositions are provided that contain a mixture of a water absorbent graft copolymer and an organic or inorganic adjuvant sorbent such as talc.

Abstract: Wound dressings having a water absorbent graft copolymer and water mixture are provided for direct application to the wound. The dressings may also be packaged in porous bags which may be directly applied to the wound. Additional components in the wound dressing may include local anesthetics, hormonal compounds, enzymes, antibacterial agents, antifungal agents or silicone compounds.

Abstract: An artificial breast form to be worn externally on the body of a woman, not implanted in the body, constructed from preformed, self-contained, stable gel structure of breast compatible size and shape and covered with a porous elastic fabric cover which does not normally constrain the gel.