Patents by Inventor Yuzi Okuzumi
Yuzi Okuzumi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100222636Abstract: This invention relates to implantable heart sack that can be equipped with pacemaker leads and/or defibrillation leads for the treatment of cardiomyopathy, hypertrophic cardiomyopathy tachycardia, bradycardia, ventricular fibrillation, atrial fibrillation etc. The heart sack was prepared from biocompatible, biostable, implantable polyetherurethane, polycarbonateurethane, silicone, polysiloxaneurethane, polyfluoroethylene, or hydrogenated poly(styrene-butadiene) copolymer. The heart sack is equipped with attached sutures to make it easier to attach onto the heart. The heart sack can be made semipermeable or perforated to have numerous holes. The heart sack can be reinforce with fiber or filament. Ordinary pacemaker leads can be attached to the inner side of the heart sack.Type: ApplicationFiled: April 26, 2010Publication date: September 2, 2010Applicant: ACORN CARDIOVASCULAR, INC.Inventor: Yuzi OKUZUMI
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Publication number: 20050171590Abstract: This invention relates to implantable heart sack that can be equipped with pacemaker leads and/or defibrillation leads for the treatment of cardiomyopathy, hypertrophic cardiomyopathy tachycardia, bradycardia, ventricular fibrillation, atrial fibrillation etc. The hear sack was prepared from biocompatible, biostable, implantable polyetherurethane, polycarbonateurethane, silicone, polysiloxaneurethane, polyfluoroethylene, or hydrogenated poly(styrene-butadiene) copolymer. The heart sack is equipped with attached sutures to make it easier to attach onto the heart. The heart sack can be made semipermeable or perforated to have numerous holes. The heart sack can be reinforce with fiber or filament. Ordinary pacemaker leads can be attached to the inner side of the heart sack.Type: ApplicationFiled: April 4, 2005Publication date: August 4, 2005Applicant: Acorn Cardiovascular, Inc.Inventor: Yuzi Okuzumi
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Patent number: 6876887Abstract: This invention relates to implantable heart sack that can be equipped with pacemaker leads and/or defibrillation leads for the treatment of cardiomyopathy, hypertrophic cardiomyopathy, tachycardia, bradycardia, ventricular fibrillation, atrial fibrillation etc. The hear sack was prepared from biocompatible, biostable, implantable polyetherurethane, polycarbonateurethane, silicone, polysiloxaneurethane, polyfluoroethylene, or hydrogenated poly(styrene-butadiene) copolymer. The heart sack is equipped with attached sutures to make it easier to attach onto the heart. The heart sack can be made semipermeable or perforated to have numerous holes. The heart sack can be reinforce with fiber or filament. Ordinary pacemaker leads can be attached to the inner side of the heart sack.Type: GrantFiled: June 13, 2001Date of Patent: April 5, 2005Assignee: Acorn Cardiovascular, Inc.Inventor: Yuzi Okuzumi
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Patent number: 6587734Abstract: This invention relates to implantable heart sack that can be equipped with pacemaker leads and/or defibrillation leads for the treatment of cardiomyopathy, hypertrophic cardiomyopathy, tachycardia, bradycardia, ventricular fibrillation, atrial fibrillation etc. The heart sack was prepared from biocompatible, biostable, implantable polyetherurethane, polycarbonateurethane, silicone, polysiloxaneurethane, polyfluoroethylene, or hydrogenated poly(styrene-butadiene) copolymer. The heart sack is equipped with attached sutures to make it easier to attach onto the heart. The heart sack can be made semipermeable or perforated to have numerous holes. The heart sack can be reinforced with fiber or filament. Ordinary pacemaker leads can be attached to the inner side of the heart sack.Type: GrantFiled: November 1, 1999Date of Patent: July 1, 2003Assignee: Acorn Cardiovascular, Inc.Inventor: Yuzi Okuzumi
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Publication number: 20020173824Abstract: This invention relates to implantable heart sack that can be equipped with pacemaker leads and/or defibrillation leads for the treatment of cardiomyopathy, hypertrophic cardiomyopathy, tachycardia, bradycardia, ventricular fibrillation, atrial fibrillation etc. The hear sack was prepared from biocompatible, biostable, implantable polyetherurethane, polycarbonateurethane, silicone, polysiloxaneurethane, polyfluoroethylene, or hydrogenated poly(styrene-butadiene) copolymer. The heart sack is equipped with attached sutures to make it easier to attach onto the heart. The heart sack can be made semipermeable or perforated to have numerous holes. The heart sack can be reinforce with fiber or filament. Ordinary pacemaker leads can be attached to the inner side of the heart sack.Type: ApplicationFiled: November 1, 1999Publication date: November 21, 2002Inventor: YUZI OKUZUMI
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Publication number: 20020151950Abstract: This invention relates to implantable heart sack that can be equipped with pacemaker leads and/or defibrillation leads for the treatment of cardiomyopathy, hypertrophic cardiomyopathy, tachycardia, bradycardia, ventricular fibrillation, atrial fibrillation etc. The hear sack was prepared from biocompatible, biostable, implantable polyetherurethane, polycarbonateurethane, silicone, polysiloxaneurethane, polyfluoroethylene, or hydrogenated poly(styrene-butadiene) copolymer. The heart sack is equipped with attached sutures to make it easier to attach onto the heart. The heart sack can be made semipermeable or perforated to have numerous holes. The heart sack can be reinforce with fiber or filament. Ordinary pacemaker leads can be attached to the inner side of the heart sack.Type: ApplicationFiled: June 13, 2001Publication date: October 17, 2002Applicant: Acorn Cardiovascular, Inc.Inventor: Yuzi Okuzumi
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Patent number: 4157437Abstract: Relatively high molecular weight, fiber-forming, crystalline copolymers of lactide and glycolide are prepared in a two-stage polymerization process. In the first stage there is prepared a random copolymer of a major proportion of an optically active lactide with a minor proportion of glycolide or d,l-lactide. In the second stage, a major amount of glycolide and a minor amount of lactide monomers are admixed with the copolymer of the first stage and the polymerization resumed until there is obtained a high molecular weight addition copolymer of lactide and glycolide containing from about 50 to 75 wt percent of units derived from glycolide. The polymer is fiber-forming and useful in the preparation of absorbable surgical sutures.Type: GrantFiled: June 12, 1978Date of Patent: June 5, 1979Assignee: Ethicon, Inc.Inventors: Yuzi Okuzumi, A. Darline Mellon, David Wasserman
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Patent number: 4137921Abstract: Relatively high molecular weight, fiber-forming, crystalline copolymers of lactide and glycolide are prepared in a two-stage polymerization process. In the first stage there is prepared a random copolymer of a major proportion of an optically active lactide with a minor proportion of glycolide or d,l-lactide. In the second stage, a major amount of glycolide and a minor amount of lactide monomers are admixed with the copolymer of the first stage and the polymerization resumed until there is obtained a high molecular weight addition copolymer of lactide and glycolide containing from about 50 to 75 wt percent of units derived from glycolide. The polymer is fiber-forming and useful in the preparation of absorbable surgical sutures.Type: GrantFiled: June 24, 1977Date of Patent: February 6, 1979Assignee: Ethicon, Inc.Inventors: Yuzi Okuzumi, A. Darline Mellon, David Wasserman
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Patent number: 4087439Abstract: There is disclosed, as a composition of matter, a new, high melting N,N'-terephthaloyl bis-phthalimide, a method for its preparation employing as a solvent a high boiling aromatic or aliphatic-aromatic ether or a mixture of a high boiling aromatic or aliphatic-aromatic ether and a low boiling cyclic or aliphatic ether and the use of said new, high melting N,N'-terephthaloyl bis phthalimide as an ester interlinking agent for polyester.Type: GrantFiled: April 29, 1974Date of Patent: May 2, 1978Assignee: The Goodyear Tire & Rubber CompanyInventor: Yuzi Okuzumi
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Patent number: 4017463Abstract: There is disclosed, as a composition of matter, a new, high melting N,N'-terephthaloyl bis-phthalimide, a method for its preparation employing as a solvent a high boiling aromatic or aliphatic-aromatic ether or a mixture of a high boiling aromatic or aliphatic-aromatic ether and a low boiling cyclic or aliphatic ether and the use of said new, high melting N,N'-terephthaloyl bis phthalimide as an ester interlinking agent for polyester.Type: GrantFiled: July 21, 1975Date of Patent: April 12, 1977Assignee: The Goodyear Tire & Rubber CompanyInventor: Yuzi Okuzumi
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Patent number: 3962193Abstract: An improved process for ester interchange reactions and for preparing polyesters by ester interchange and condensation reactions using organic nitrogen compounds of metals as catalysts.Type: GrantFiled: December 27, 1971Date of Patent: June 8, 1976Assignee: The Goodyear Tire & Rubber CompanyInventor: Yuzi Okuzumi