Abstract: A disposable mask and suction catheter includes a mask having a front side and a back side, the back side being disposed in contact with a user's face during use. The disposable mask and suction catheter also includes a catheter tube having a first and a second end, the first end being removably attachable to a suction source for removing exhaled air and the second end being attached to the back side of the mask. The disposable mask and suction catheter helps to prevent fogging of glasses or other eyewear due to moist, exhaled air that escapes from behind the mask, and improves user comfort by constantly removing the warm, moist air behind and around the mask and drawing cool dry air into the mask.

Abstract: A disposable mask and suction catheter includes a mask having a front side and a back side, the back side being disposed in contact with a user's face during use. The disposable mask and suction catheter also includes a catheter tube having a first and a second end, the first end being removably attachable to a suction source for removing exhaled air and the second end being attached to the back side of the mask. The disposable mask and suction catheter helps to prevent fogging of glasses or other eyewear due to moist, exhaled air that escapes from behind the mask, and improves user comfort by constantly removing the warm, moist air behind and around the mask and drawing cool, dry air into the mask.

Abstract: A new and useful method is disclosed for transferring information from cinema film at a first speed to broadcast quality video signals at a second and different, predetermined speed which may be greater or less than the first speed, in a telecine with an internal frame store using a beam of optical information signals.

Abstract: A non-toxic process for the recovery of silver from silver containing photographic emulsion coated paper or film substrates is provided. The process includes the use of a stripping formulation comprised of an alkaline bleach solution which is capable of holding stripped animal protein, silver and silver halide in solution during separation of the substrate materials. The solution containing the silver, silver halide and animal protein is treated with a strong or highly ionized acid which results in controlled precipitation of hydrolyzed animal protein, silver and silver halide. Waste fluids are neutralized with an alkali metal hydroxide, the precipitate is dried to a sludge, carbon content of the sludge is control burned and the residue is smelted with appropriate fluxes in order to achieve silver ingot.

Abstract: A controlled release powder containing discrete micro-particles for use in edible, pharmaceutical and other controlled release compositions is disclosed. The micro-particles have an average size in the range of from 0.1 to 125 .mu.m. Each of the micro-particles is in the form of a micromatrix of an active ingredient uniformly distributed in at least one non-toxic polymer. The micro-particles have a predetermined release of active ingedient when the dissolution rate thereof is measured according to the Paddle Method of U.S. Pharmacopoeia XX at 37.degree. C. and 75 r.p.m.

Abstract: A diltiazem pellet formulation for oral administration comprises a core of diltiazem or a pharmaceutically acceptable salt thereof in association with an organic acid and a lubricant, and a membrane surrounding the core comprising a multiplicity of sequentially applied and dried layers, each layer containing a major proportion of a pharmaceutically acceptable film-forming, water insoluble, naturally occurring polymer and a minor proportion of a pharmaceutically acceptable film-forming, water soluble polymer. The number of layers in the membrane and the ratio of the water soluble to water insoluble polymer being effective to permit release of the diltiazem from the pellet at a rate allowing controlled absorption thereof over a twelve hour period following oral administration.

Abstract: A diltiazem pellet formulation for oral administration comprises a core of diltiazem or a pharmaceutically acceptable salt thereof in association with an organic acid, and a multi-layer membrane surrounding the core and containing a major proportion of a pharmaceutically acceptable film-forming, water insoluble synthetic polymer and a minor proportion of a pharmaceutically acceptable film-forming, water soluble synthetic polymer. The number of layers in the membrane and the ratio of the water soluble to water insoluble polymer being effective to permit release of diltiazem from the pellet at a rate allowing controlled absorption thereof over a twelve hour period following oral administration. The pellet has a dissolution rate in vitro which when measured in a dissolution apparatus (Paddle) according to U.S. Pharmacopoeia XXI in 0.05 M KCl at pH 7.0 results in not more than 35% of the total diltiazem being released after 2 hours of measurement.

Abstract: A controlled absorption verapamil containing pellet formulation for oral adminstration comprises a core of a powder mixture containing verapamil or a pharmaceutically acceptable salt thereof and an organic acid and a polymeric material, said core comprising layers of said powder mixture and said polymeric material superimposed one upon the other and said polymeric material being present in an amount effective to ensure that all of said powder mixture is coated into said core and a multi-layer membrane surrounding said core, the number of layers in said membrane and the ratio of the various polymers comprising the membrane being effective to permit release of the verapamil from the pellet at a rate allowing controlled absorption thereof over a 24 hour period following oral administration, said rate being measured in vivo and having a Tmax between 6 and 16 hours.

Abstract: A process is described for extracting a pharmaceutically active polysaccharidic substance from the aloe plant.The pharmaceutically active polysaccharidic substance and its characteristic properties are described.

Abstract: A device for the unidirectional transdermal administration of a drug in an ointment, cream or jelly-like carrier comprising a laminar applicator adapted to receive a predetermined quantity of the drug on a skin-contacting surface thereof, the applicator including a drug-impervious lamina such as a layer of aluminum foil, overlying said skin-contacting surface, such that in use a unidirectional transfer of the drug from the carrier to the skin surface is ensured. The device is especially suitable for the transdermal administration of nitroglycerin, clonidine, methadone and scopolamine or any drug that is skin-permeable. The drug receiving surface may be embossed, pressed, or stamped to define one or more mini-recesses or receptacles for receiving the drug to be administered.

Abstract: A sustained absorption theophylline-containing pellet for oral administration comprises a core of theophylline or a pharmacological equivalent thereof and an organic acid embedded in a polymeric material in a multi-layer arrangement and an outer membrane which permits release of the theophylline at a controlled rate in an aqueous medium. The pellet has a dissolution rate in vitro in an aqueous medium, which when measured in a basket assembly according to U.S. Pharmacopoeia XX at 37.degree. C. and 75 r.p.m., is not more than 15% of the total theophylline after 2 hours of measurement in a buffer solution at pH 7.5. Not more than 35% of the total theophylline is released after a total of 7 hours of measurement and not more than 65% of the total theophylline is released after a total of 13 hours.

Abstract: The present invention relates to medicaments with a high degree of dissolution rate and solubility. These medicaments are characterized in that they are in amorphous form produced by spraying in the presence of a stabilizer and of an agent inhibiting the formation of crystals.

Abstract: A device for transdermal administration of a drug comprises a reservoir containing the drug and a supporting strap, or band, which substantially surrounds a limb of the patient and holds the reservoir in position on a limb of the patient. The reservoir is generally non permeable to the drug, but has a membrane, or plate, of defined surface area through which said drug can pass. In use, this membrane or plate is held against the patient's skin to allow the drug to be absorbed. The device further includes cooperating locking mechanisms for detachably securing the reservoir on the strap or band whereby the supply of drug can be replenished by removing the spent reservoir and inserting a fresh one containing a new supply of the drug.

Abstract: There is disclosed a .Iadd.novel .Iaddend.process and a .[.material.]. .Iadd.composition .Iaddend.for brightening teeth.Iadd., together with a novel use of old compositions for brightening teeth. .Iaddend.The .Iadd.novel .Iaddend.process .Iadd.and use each comprises .Iaddend..[.comprises.]. the .[.construction.]. .Iadd.placing .Iaddend.of a splint around the tooth or teeth to be brightened, .[.followed by the insertion within the splint of.]. .Iadd.with .Iaddend.a brightening agent .[.selected from one of many peroxide groups.]. .Iadd.comprising a composition capable of sustained nascent oxygen release.Iaddend.. The splint is constructed so that the splint is relatively liquid tight .[.to the gingiva.].. .Iadd.Preferably, .Iaddend.the brightening agent is periodically renewed .Iadd.during the day .Iaddend.and can be mixed with various other agents to increase the nascent oxygen release .[.aerating factors.].. In one embodiment, the .[.perioxide.]. .Iadd.peroxide .Iaddend.