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    • 6. 发明申请
    • PREPARATION OF PEPTIDE CONTAINING BIODEGRADABLE MICROSPHERES BY MELT PROCESS
    • 通过熔融法制备含生物可降解微生物的肽
    • WO1997015389A1
    • 1997-05-01
    • PCT/US1996017237
    • 1996-10-25
    • MACROMED, INC.
    • MACROMED, INC.CHA, YounsikCHOI, Young, KweonPAI, Chaul, Min
    • B01J13/02
    • A61K38/23A61K9/1647A61K38/28A61K38/38B01J13/02
    • Peptide/protein biodegradable drug delivery devices are prepared as microspheres without the use of solvents by a polymer melt process. A melt of thermostable polypeptides and an appropriate low melting block copolymer mixture is prepared and dispersed in an appropriate fluid medium such as air, water or an immiscible organic fluid without using any organic solvent to form microdroplets. The fluid medium is cooled to solidify the microdroplets into microspheres and then collected and purified or further processed as drug delivery devices. These biodegradable microspheres are suitable as implantable or injectable pharmaceutical formulations. Following administration as solid microspheres into the body of a warm blooded animal, the formulations absorb water from the body to form a hydrogel from which the polypeptide is released continuously over an extended period of time.
    • 肽/蛋白质可生物降解的药物递送装置通过聚合物熔融方法制备为不使用溶剂的微球。 制备热稳定多肽和合适的低熔点嵌段共聚物混合物的熔体并将其分散在合适的流体介质如空气,水或不混溶的有机流体中,而不使用任何有机溶剂形成微滴。 将流体培养基冷却以将微滴固化成微球,然后收集并纯化或进一步加工为药物递送装置。 这些可生物降解的微球体适合作为可植入或可注射的药物制剂。 在作为固体微球体施用于温血动物的体内后,制剂吸收来自身体的水以形成水凝胶,多肽在延长的时间段内连续释放。
    • 7. 发明专利
    • 在酸性環境中膨脹而在鹼性環境中去膨脹之聚體攙合物
    • 在酸性环境中膨胀而在碱性环境中去膨胀之聚体搀合物
    • TW574253B
    • 2004-02-01
    • TW089124007
    • 2000-11-13
    • 麥克羅麥德公司 MACROMED,INC.
    • 蓋倫增納 ZENTNER, GAYLEN M.卜忠三 PARK, JONG SANG劉豐 LIU, FENG
    • C08G
    • C08L1/12A61K9/2027A61K9/2031A61K9/205A61K9/2054C08J3/005C08L5/02C08L5/08C08L2666/02
    • 一種聚體攙合物,係將去乙醯殼多醣及一第二聚合物溶於酸性水液中形成水性聚體攙合物,將所述水性聚體攙合物脫水,及回收所述聚體攙合物予以製備。該第二聚合物可由聚醚二醇類包括聚乙二醇;纖維素酯包括乙酸纖維素;聚氧體(poloxamer);多醣類包括葡聚糖及食糖;聚乙烯基咯酮;聚乙烯醇;及其等之混合物或共聚物所組成集團中選出。此等聚體攙合物在酸性環境中膨脹而在更中性或鹼性環境中去膨脹。此技藝有用於將生物活性物質或藥物分配於周圍環境,尤其腸胃道內所見環境。由於本發明之各種聚體攙合物非以共價或離子方式交聯,而係物理結合,故該物理攙合物內之每一聚合物保持其原始化學結構,因而對經口腔或其他投施路徑具有安全性。
    • 一种聚体搀合物,系将去乙酰壳多糖及一第二聚合物溶于酸性水液中形成水性聚体搀合物,将所述水性聚体搀合物脱水,及回收所述聚体搀合物予以制备。该第二聚合物可由聚醚二醇类包括聚乙二醇;纤维素酯包括乙酸纤维素;聚氧体(poloxamer);多糖类包括葡聚糖及食糖;聚乙烯基咯酮;聚乙烯醇;及其等之混合物或共聚物所组成集团中选出。此等聚体搀合物在酸性环境中膨胀而在更中性或碱性环境中去膨胀。此技艺有用于将生物活性物质或药物分配于周围环境,尤其肠胃道内所见环境。由于本发明之各种聚体搀合物非以共价或离子方式交联,而系物理结合,故该物理搀合物内之每一聚合物保持其原始化学结构,因而对经口腔或其他投施路径具有安全性。
    • 8. 发明申请
    • SWELLING AND DESWELLING POLYMER BLENDS
    • 溶胀和脱落聚合物混合物
    • WO0134677A8
    • 2001-10-11
    • PCT/US0030908
    • 2000-11-10
    • MACROMED INC
    • ZENTNER GAYLEN MBARK JONG-SEOKLIU FENG
    • A61K47/32A61K9/20A61K47/34A61K47/36A61K47/38C08J3/00C08J3/205C08L1/12C08L5/02C08L5/08C08L101/00C08G63/48C08G63/91C08H1/06C08J5/10
    • C08L1/12A61K9/2027A61K9/2031A61K9/205A61K9/2054C08J3/005C08L5/02C08L5/08C08L2666/02
    • A polymer blend is prepared by dissolving chitosan and a second polymer in an acidic aqueous solution to form an aqueous polymer blend, dehydrating said aqueous polymer blend, and recovering said polymer blend. The second polymer may be selected from the group consisting of polyether glycols including polyethylene glycols; cellulose esters including cellulose acetate; poloxamers; polysaccharides including dextran and guar; polyvinylpyrrolidones; polyvinyl alcohols; and mixtures or copolymers thereof. These polymer blends swell in an acidic environment and deswell in a more neutral or basic environment. This technology is valuable for the dispensing of biologically active material or drugs into a surrounding environment, especially the environment as is found in the gastrointestinal tract. Since the various polymer blends of the present invention are not covalently or ionically crosslinked, but are physically combined, each polymer in the physical blend maintains its original chemical structure, and therefore, is safe for oral or other routes of administration.
    • 通过将壳聚糖和第二聚合物溶解在酸性水溶液中以形成水性聚合物共混物,使所述水性聚合物共混物脱水并回收所述聚合物共混物来制备聚合物共混物。 第二聚合物可以选自包括聚乙二醇的聚醚二醇; 包括乙酸纤维素的纤维素酯 泊洛沙姆; 包括葡聚糖和瓜尔胶的多糖; 聚乙烯吡咯烷酮; 聚乙烯醇; 及其混合物或共聚物。 这些聚合物共混物在酸性环境中溶胀并在更中性或碱性环境中消除。 该技术对于将生物活性物质或药物分配到周围环境中是有价值的,尤其是在胃肠道中发现的环境。 由于本发明的各种聚合物共混物不是共价或离子交联的,而是物理结合的,物理共混物中的每种聚合物都保持其原始的化学结构,因此对于口服或其他给药途径是安全的。
    • 9. 发明申请
    • THERMOSENSITIVE BIODEGRADABLE POLYMERS BASED ON POLY(ETHER-ESTER) BLOCK COPOLYMERS
    • 基于聚(醚)嵌段共聚物的耐热可生物降解聚合物
    • WO1997015287A1
    • 1997-05-01
    • PCT/US1996017023
    • 1996-10-25
    • MACROMED, INC.
    • MACROMED, INC.CHA, YounsikCHOI, Young, KweonBAE, You, Han
    • A61K09/10
    • A61K9/0024A61K38/1858A61K38/2013A61K38/225A61K38/28A61K47/34
    • A system and method for the parenteral delivery of a drug in a biodegradable polymeric matrix to a warm blooded animal as a liquid with the resultant formation of a gel depot for the controlled release of the drug. The system comprises an injectable biodegradable block copolymeric drug delivery liquid having reverse thermal gelation properties. The liquid is an aqueous solution having dissolved or dispersed therein an effective amount of a drug intimately contained in a biodegradable block copolymer matrix. The copolymer has a reverse gelation temperature below the body temperature of the animal to which it is administered and is made up of (i) a hydrophobic A polymer block comprising a member selected from the group consisting of poly( alpha -hydroxy acids) and poly(ethylene carbonates) and (ii) a hydrophobic B polymer block comprising a polyethylene glycol. The liquid is stored below the reverse gelation temperature and is parenterally administered into the animal by intramuscular, intraperitoneal, subcutaneous or similar injection.
    • 一种用于将可生物降解的聚合物基质中的药物肠胃外递送至温血动物作为液体的系统和方法,其中形成用于控释药物的凝胶储库。 该系统包括具有反向热凝胶化特性的可注射的可生物降解的嵌段共聚物药物递送液体。 液体是其中溶解或分散有有效量的药物,其密封地包含在可生物降解的嵌段共聚物基质中。 该共聚物具有低于其施用的动物的体温的反向凝胶化温度,并且由以下组成:(i)疏水性A聚合物嵌段,其包含选自聚(α-羟基酸)和聚 (碳酸亚乙酯)和(ii)包含聚乙二醇的疏水性B聚合物嵌段。 将液体储存在反胶凝温度以下,通过肌内,腹膜内,皮下或类似的注射剂肠胃外给药。
    • 10. 发明公开
    • SWELLING AND DESWELLING POLYMER BLENDS
    • AN- UND ABSCHWELLENDE POLYMERBLENDS
    • EP1240230A4
    • 2004-12-01
    • EP00980328
    • 2000-11-10
    • MACROMED INC
    • ZENTNER GAYLEN MBARK JONG-SEOKLIU FENG
    • A61K47/32A61K9/20A61K47/34A61K47/36A61K47/38C08J3/00C08J3/205C08L1/12C08L5/02C08L5/08C08L101/00C08B37/08
    • C08L1/12A61K9/2027A61K9/2031A61K9/205A61K9/2054C08J3/005C08L5/02C08L5/08C08L2666/02
    • A polymer blend is prepared by dissolving chitosan and a second polymer in an acidic aqueous solution to form an aqueous polymer blend, dehydrating said aqueous polymer blend, and recovering said polymer blend. The second polymer may be selected from the group consisting of polyether glycols including polyethylene glycols; cellulose esters including cellulose acetate; poloxamers; polysaccharides including dextran and guar; polyvinylpyrrolidones; polyvinyl alcohols; and mixtures or copolymers thereof. These polymer blends swell in an acidic environment and deswell in a more neutral or basic environment. This technology is valuable for the dispensing of biologically active material or drugs into a surrounding environment, especially the environment as is found in the gastrointestinal tract. Since the various polymer blends of the present invention are not covalently or ionically crosslinked, but are physically combined, each polymer in the physical blend maintains its original chemical structure, and therefore, is safe for oral or other routes of administration.
    • 通过将壳聚糖和第二聚合物溶解在酸性水溶液中以形成水性聚合物共混物,使所述聚合物共混物脱水,并回收所述聚合物共混物来制备聚合物共混物。 第二聚合物可以选自包括聚乙二醇的聚醚二醇; 纤维素酯,包括乙酸纤维素; 泊洛沙姆; 多糖包括葡聚糖和瓜尔胶; 聚乙烯吡咯烷酮; 聚乙烯醇; 及其混合物或共聚物。 这些聚合物混合物在酸性环境中溶胀并在较中性或碱性环境中溶解。 该技术对于将生物活性物质或药物分配到周围环境,特别是在胃肠道中发现的环境是有价值的。 由于本发明的各种聚合物共混物不共价或离子交联,而是物理组合,物理混合物中的每种聚合物保持其原始化学结构,因此对于口服给药是安全的。