836 results about "Silicone Gels" patented technology

A method for adhering a first substrate to a second substrate using a double sided adhesive device based on silicone gels. The method is particularly useful for adhering a medical prosthesis to a human or animal body.

This invention pertains to a construction consisting of in the order from the outside towards the inside: An occlusive or non occlusive external film layer; a non-curing pressure sensitive adhesive (PSA) that has been blended with a therapeutic concentration of at least one or a combination of cosmetic or pharmaceutical active ingredients; and a silicone gel adhesive that is used as the skin contact layer.

A device for treatment of wounds using reduced pressure, said device comprising

• • a pump
  • a reservoir connected to said pump for collecting exudate from a wound (1),
  • an inlet to the reservoir for connecting the reservoir with the wound so as to allow the pump to expose the wound to the reduced pressure, a wound pad to be arranged in the wound cavity and a sealing covering the wound and said wound pad.

The wound pad consist of an open-cell polyurethane foam which is fully impregnated with a soft hydrophobic silicone gel, and that the foam has a hardness of 1.0-6.0 kPa measured according to ISO 3386-1 at 40% compression. The invention also concerns such a wound pad to be used with an absorbent member. In addition the invention concerns a method for manufacturing the wound pad.

Vinyl carbonate endcapped polysiloxanes containing a fluorinated side chain are useful as biomaterials, especially hydrogel biomaterials, including contact lens materials.

Fatty alcohol or aliphatic glycol-grafted rubber-like silicone gels with enhanced oil compatibility are synthesized by 1) reacting a fatty alcohol or a aliphatic glycol with methylhydrodimethylsiloxane copolymer in the presence of a platinum catalyst in a reaction medium of a silicone fluid or a cosmetic oil or a mixture thereof, and 2) further reacting the mixture with a vinyl-functional siloxane polymer. The resulting compounds may be used as gelling agents for hydrocarbon oils, vegetable oils and silicone oils. The efficient synthetic process approaches a 100% yield.

An elastomeric gel-filled prosthetic implant having a shell made of a single gel barrier layer. The barrier layer is formed of a homogeneous silicone elastomer capable of sterically retarding permeation of the silicone gel through the shell and having a bleed rate that is less than about 40% of the bleed rate of current shells which use a sandwiched construction with an internal barrier layer. Further, the barrier layer shell is made of a material that exhibits a wet strength that is comparable to or greater than current shells. The silicone elastomer may be a polydimethyl siloxane, and the substituted chemical group is a diphenyl group with a minimum mole percent of at least 13%. The implant may be designed for breast reconstruction or augmentation such that the shell is accordingly shaped. The shell wall thickness is at least 0.254 mm (0.010 inches), and desirably about 0.456 mm (0.018 inches). The implant shell may be made by dip-forming, spray-forming, or rotational molding. The exterior may be smooth or textured.

The present invention is applicable to utilization of laser impact wave technique to modify material surface or make cold-plasticity forming of metal plate material. Said invention adopts two groups of GN-521 organic silicone gel solutions with different components and additive, and mixes them according to a certain formula, after said mixture is solidified, a transparent constraining layer for laser is formed, and an energy-absorbing layer of 86-1 type black paint can be sprayed on the constraining layer to form the sticking film integrating energy-absorbing layer and constraining layer into one body and possessing a certain flexibility.

A suitable support device for newborns including premature babies comprises a doughnut-shaped structure having a gel-filled GORE-TEX casing of about five to six inches outer diameter with a central aperture of about two to three inches in diameter. The structure provides an annular tube having about a 1 to 2 inch diameter. The tube is preferably circular in cross-section at the rear or head region and preferably flattened to provide a generally oval cross-section at the front or neck region. The case is filled with a cohesive gel mass such as silicone gel or silicone elastomers with sufficiently cross-linked polysiloxane networks to substantially retain a selected shape despite the force of a limited incident weight.

The invention relates to silicone gel and specifically provides a high adhesiveness silicone gel for embedding a precision electron component. The silicone gel comprises a component A and a component B that have similar viscosity and are in transparent fluid shape. The component A mainly comprises vinyl silicone oil and catalyst; the component B mainly comprises vinyl silicone oil, cross-linking agent and inhibitor; an accessory employs a diluent or an adhesion agent or a mixture of the two; the accessory is arranged in the component A or the component B or both of the two; and the component A and the component B are independently packaged and mixed in a ratio of 1:0.8-1.2 for usage. The invention has advantages of good fluidity, property of automatic deaeration and simple operation. The component A and the component B are independently packaged, and the two components will not gelatinize after mixing, so as to gain a long operating time; the mixture can solidify rapidly once heated, and the solidification time can be controlled freely by temperature and inhibitor amount; and the silicone gel is in semi-solidification state after solidification, has good adhesiveness and sealing performance on many base materials and has excellent hot-cold alternate resistance.

An improved breast form, constructed according to the principles of this invention, comprises a flexible chamber formed from a pair of polyurethane sheets that are sealed together along a perimeter edge of the chamber. A volume of silicone gel composition is sealably disposed within the flexible chamber. A fabric material is disposed over and permanently joined to a surface portion of each of the polyurethane sheets. The fabric material forms an exterior surface of the breast form, and is made from a four-way stretchable fabric.

The signal from a meter register of a water meter having a distance range is transmitted to a receiver mounted adjacent the meter register and acted on to provide a second signal that has a predetermined distance range greater than the predetermined distance of the received signal. The second signal is transmitted to a meter reader. Reed switches are mounted alongside a meter register of a water meter and acted on by magnetic end of a rotating arm of the register. A microprocessor receives signals from the reed switches and determines water flow direction and units of flowed water. The information is transmitted to a meter reader. Components of a transmitter/receiver are mounted in a housing and the housing partially filled with silicone gel and polyurethane. The transmitter/receiver can be used in dry, damp, and wet environments.

A method for manufacturing a silicon hydrogel gel contact lens having a hydrophilic surface is provided, whereby a hydrophilic biomedical material such as, HEMA, GMA, GMMA, NVP, MAA, MMA, PVA, PU, HA, collagen, chitosan, polydextrose, etc. is combined with a surface of a soft silicone gel or a silicone hydrogel material to form a sandwiched structure of a body of a contact lens. With this method, the surface of the soft silicone gel or the silicone hydrogel material can be completely coated with the hydrophilic biomedical material, so that a hydrophobic silicone dry spot on the surface resulting from a hydrophobic silicone component in the soft silicone gel or silicone hydrogel material is completely coated. Thus, a contact lens having a completely hydrophilic surface and a high oxygen-permeability is formed, which can be more comfortably worn for a longer time. Particularly, the concise manufacturing method of the prevention can be combined with existing manufacturing equipment to mass-produce hydrophilic contact lenses with a high oxygen-permeability at a lower cost.

This invention is a composition comprising a cyclic siloxane, a silicone occlusive fluid, a silicone occlusive gel, and a silicone resin powder. The composition is useful for wound healing.

A combination of a specific first coupling agent, second coupling agent, and carrier solvent is synergistically effective as a primer for improving the adhesion of silicone compositions, especially hydrosilation cured silicone gels, to polymer surfaces. The first coupling agent is a titanium-, boron-, or zirconium-containing coupling agent, or a combination of such. The second coupling agent is a silane coupling agent.

A burn treatment bandage in which a silicone composition, primarily a silicone gel, is located on a bandage of the type having an adhesive strip capable of being attached to a user's skin along with a gauze portion thereon. The silicone and, particularly, the silicone gel is pre-incorporated into the gauze, such that when one attempts to treat a burn or other scar tissue, the user may merely apply the bandage such that the silicone material is in contact with the scar tissue.

A non-adherent wound dressing (1) comprises a substrate (2) in the form of a perforated sheet of melt-blown non-woven material. The substrate (2) is impregnated with, and coated on both sides with, a silicone gel (3).

A transparent pressure-sensitive adhesive product for optical use, a transparent pressure-sensitive adhesive laminate for optical use and a manufacturing method thereof, which afford, upon affixing, stable peeling site selectivity between release sheets and both faces of a transparent pressure-sensitive adhesive product, and which accomplish, in a stable and easy manner, peeling site selectivity on both faces of the transparent pressure-sensitive adhesive product during rework involving re-affixing.

The transparent pressure-sensitive adhesive product for optical use has an adhesive face (a) and an adhesive face (b) of dissimilar tackiness, and is formed of an addition reaction-type silicone gel. A relationship between an adhesive power (Ga) of the adhesive face (a) and an adhesive power (Gb) of the adhesive face (b) is Ga<Gb; the adhesive power (Ga) and the adhesive power (Gb) yield a ball number from 3 to 15 and a ball number difference from 2 to 12, in an inclined ball tack test (inclination angle 30 degrees) according to JIS Z0237.

The disclosed multifunctional sensor IC for tyre pressure and temperature monitor system comprises: a pressure sensor with micro-mechanical part protected by silicone gel, an accelerator, a temperature sensor, and an IC all packed in a custom plastic shell. This invention improves system reliability, resistance to hot temperature and corrosion, and stability.