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767results about How to "Reduce force" patented technology

Heparin barrier coating for controlled drug release

ActiveUS20050004663A1Reduce frictional forceReduce forceSuture equipmentsStentsCompound (substance)Antioxidant
Medical devices, and in particular implantable medical devices, may be coated to minimize or substantially eliminate a biological organism's reaction to the introduction of the medical device to the organism. The medical devices may be coated with any number of biocompatible materials. Therapeutic drugs, agents or compounds may be mixed with the biocompatible materials and affixed to at least a portion of the medical device. These therapeutic drugs, agents or compounds may also further reduce a biological organism's reaction to the introduction of the medical device to the organism. In addition, these therapeutic drugs, agents and/or compounds may be utilized to promote healing, including the formation of blood clots. The drugs, agents, and/or compounds may also be utilized to treat specific diseases, including vulnerable plaque. Therapeutic agents may also be delivered to the region of a disease site. In regional delivery, liquid formulations may be desirable to increase the efficacy and deliverability of the particular drug. Also, the devices may be modified to promote endothelialization. Various materials and coating methodologies may be utilized to maintain the drugs, agents or compounds on the medical device until delivered and positioned. In addition, the devices utilized to deliver the implantable medical devices may be modified to reduce the potential for damaging the implantable medical device during deployment. Medical devices include stents, grafts, anastomotic devices, perivascular wraps, sutures and staples. In addition, various polymer combinations as well as other therapeutic agents may be utilized to control the elution rates of the therapeutic drugs, agents and/or compounds from the implantable medical devices. In each of these instances, antioxidants are utilized to prolong product integrity.
Owner:WYETH

Local administration of a combination of rapamycin and 17 beta-estradiol for the treatment of vulnerable plaque

InactiveUS20050232965A1Reduce frictional forceReduce forceStentsBiocide17 beta estradiolCompound (substance)
Medical devices, and in particular implantable medical devices, may be coated to minimize or substantially eliminate a biological organism's reaction to the introduction of the medical device to the organism. The medical devices may be coated with any number of biocompatible materials. Therapeutic drugs, agents or compounds may be mixed with the biocompatible materials and affixed to at least a portion of the medical device. These therapeutic drugs, agents or compounds may also further reduce a biological organism's reaction to the introduction of the medical device to the organism. In addition, these therapeutic drugs, agents and/or compounds may be utilized to promote healing, including the formation of blood clots. The drugs, agents, and/or compounds may also be utilized to treat specific diseases, including vulnerable plaque. Therapeutic agents may also be delivered to the region of a disease site. In regional delivery, liquid formulations may be desirable to increase the efficacy and deliverability of the particular drug. Also, the devices may be modified to promote endothelialization. Various materials and coating methodologies may be utilized to maintain the drugs, agents or compounds on the medical device until delivered and positioned. In addition, the devices utilized to deliver the implantable medical devices may be modified to reduce the potential for damaging the implantable medical device during deployment. Medical devices include stents, grafts, anastomotic devices, perivascular wraps, sutures and staples. In addition, various polymer combinations may be utilized to control the elution rates of the therapeutic drugs, agents and/or compounds from the implantable medical devices.
Owner:WYETH

Method for preparing super absorbent resin by graft copolymerization reaction of carboxymethyl potato starch, acrylamide, acrylic acid and sodium salt thereof

The invention discloses a method for preparing super absorbent resin by the graft copolymerization reaction of carboxymethyl potato starch, acrylamide, acrylic acid and sodium salt thereof, which comprises the following main processes: carrying out neutralization reaction between a sodium hydroxide solution and acrylic acid from which polymerization inhibitor is removed under the cooling of ice-water bath; mixing acrylamide with de-ionized water to obtain an acrylamide solution; mixing the carboxymethyl potato starch with the prepared acrylic acid and the sodium salt solution and the acrylamide solution; adding an evocating agent persulfate and a cross-linking agent N,N'- methylene-bisacrylamide; stirring the mixture under room temperature; heating the mixture by water bath to rise the temperature so as to ensure that the carboxymethyl potato starch, the acrylic acid and the sodium salt thereof and the acrylamide generate graft copolymerization reaction under the protection of nitrogen; keeping the temperature of the reaction; drying and crashing to obtain the super absorbent resin with high potassium content by using carboxymethyl potato starch as the raw material. Compared with the similar products, the water absorption of the super absorbent resin is greatly enhanced; the super absorbent resin contains nitrogen nutrition element, does not need pasting in comparison with theprocess of directly using starch and greatly improves the preparation process. The super absorbent resin has great effect on the water conservation, the desert control, the plant growth promotion andthe like of soil in dry regions.
Owner:内蒙古永业生物技术有限责任公司

Method for preparing super absorbent resin by using carboxymethyl potato starch as raw material

The invention discloses a method for preparing super absorbent resin by using carboxymethyl potato starch as the raw material, which comprises the following main processes: carrying out neutralizationreaction between a sodium hydroxide solution and acrylic acid from which polymerization inhibitor is removed under the cooling of ice-water bath; mixing carboxymethyl potato starch with de-ionized water; mixing the prepared acrylic acid and the sodium salt solution thereof with the carboxymethyl potato starch solution; adding an evocating agent persulfate and a cross-linking agent N,N'- methylene-bisacrylamide; stirring the mixture under room temperature; heating the mixture by water bath to rise the temperature gradually so as to ensure that the carboxymethyl potato starch and the acrylic acid and the sodium salt thereof generate graft copolymerization reaction under the protection of nitrogen; keeping the temperature of the reaction; drying and crashing to obtain the super absorbent resin by using carboxymethyl potato starch as the raw material. Compared with similar products, the water absorption of the super absorbent resin is greatly enhanced, the process of pasting is omitted incomparison with the process of using starch as the raw material and the preparation process is greatly improved. The super absorbent resin has great effect on the water conservation, the production of the physical hygiene sundries, the environmental improvement, the desert control, the plant growth promotion and the like of soil in dry regions.
Owner:广西珅信科技有限公司
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