Patents by Inventor Jan Nieuwenhuis
Jan Nieuwenhuis 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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Patent number: 11939113Abstract: T-Shirt bag with a front foil layer, a rear foil layer and side folds, where the front foil layer and the rear foil layer and the two side folds at the bottom edge and at the top edge are joined together; and where at the top edge of the T-shirt bag two handles are formed by a recess, both handles being provided with a continuous suspension opening; where the perforation openings with incisions and a spot connection are provided in the front foil layer and in the front side fold portions of each handle.Type: GrantFiled: July 23, 2020Date of Patent: March 26, 2024Assignee: NIVERPLAST HOLDING B.V.Inventor: Gerrit Jan Nieuwenhuis
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Publication number: 20220233891Abstract: The invention relates to a rope-lowering device for lowering persons from a building or the like, comprising: an axle arranged to rotate about its longitudinal axis; a first reel connected or connectable to the axle; a second reel connected or connectable to the axle; a brake connected to the axle, which brake is configured to provide a braking force to the axle independent of a direction of rotation; a first rope connected to the first reel to be suspended from the first reel; and a second rope connected to the second reel to be suspended from the second reel, wherein the rope-lowering device is configured such that when both the first and second reels are connected to the axle, paying out one of the first and second rope will automatically cause the other one of the first and second rope to be hauled in.Type: ApplicationFiled: May 15, 2020Publication date: July 28, 2022Inventors: Hendrik Nieuwenhuis, Cornelis Jan Nieuwenhuis, Hendrik Christian Verdoold
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Patent number: 11202634Abstract: The invention is directed to a method and a surgical instrument, typically a surgical stapler that is configured for performing anastomosis of a first gastro-intestinal tract section to a second gastro-intestinal tract section, both gastro-intestinal tract sections comprising a superficial layer and an intermediate layer. Said method comprises contacting the superficial layers of said gastro-intestinal tract sections and compressing the contacted sections between a first pressure area and a second pressure area, wherein the sum of the first pressure area and the second pressure increases during the compression such that the superficial layers are pressed aside and the intermediate layers are contacted.Type: GrantFiled: December 4, 2017Date of Patent: December 21, 2021Assignees: Implican B.V., Rijksuniversiteit Groningen, Academisch Ziekenhuis GroningenInventors: Klaas Havenga, Jan Nieuwenhuis, Olf Boesjes
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Patent number: 7135025Abstract: A surgical implant made of a polymer, copolymer, polymer mixture or polymer composite that dissolves in the organ system. The manufacturing material is dyed with the coloring agent D&C Violet No. 2 or D&C Green No. 6. Preferably, the amount of the coloring agent is at most approximately 0.03 percent by weight and the implant is sterilized by radiation.Type: GrantFiled: July 22, 2002Date of Patent: November 14, 2006Assignee: Inion Ltd.Inventors: Timo Pohjonen, Timo Reunämaki, Auvo Kaikkonen, Jan Nieuwenhuis, Pia Ahvenjärvi
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Patent number: 7122037Abstract: A fastener for the treatment of fractures and the materials for production thereof. The fastener having a head with a contact portion for an installation tool and an attaching part having a treaded portion. The threads of the threaded portion are 5 to 20 % of the height of the outer diameter of the thread. The material for producing the fastener is a blend containing a biodegradable base material and one or more copolymer additives so that at room temperature the ductility of the blend is substantially higher than that of the pure base material. The base material may be a biodegradable polymer and/or a copolymer.Type: GrantFiled: May 17, 2001Date of Patent: October 17, 2006Assignee: Inion Ltd.Inventors: Harri Happonen, Timo Pohjonen, Auvo Kaikkonen, Jan Nieuwenhuis
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Patent number: 7041107Abstract: An instrument for shaping a mouth part of a drilled tunnel provided in a bone. The instrument includes a shaft having a longitudinal axis and a first and a second end. The first end of the shaft is provided with a projection, which includes a blade for shaping the mouth part of the drilled tunnel when the instrument is turned around the longitudinal axis of the shaft. The instrument is asymmetric at an intersecting surface perpendicular to the longitudinal axis and intersecting with the blade, the instrument thus shaping the surfaces surrounding the first end only substantially within an area corresponding with a turning angle of such a turning movement.Type: GrantFiled: April 22, 2003Date of Patent: May 9, 2006Assignee: Inion Ltd.Inventors: Timo Pohjonen, Auvo Kaikkonen, Jan Nieuwenhuis, Pia Ahvenjärvi, Olli Karhi, Timo Reunamäki, Jukka Koljonen
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Publication number: 20050186251Abstract: Novel polymer compositions that are useful in the manufacture of medical implants, implants having osteogenic properties and methods of making said implants are disclosed. Polymer compositions comprise a base material including a polymer matrix of resorbable polymer(s) or copolymer(s), and N-methyl-2-pyrrolidone (NMP), wherein NMP is present in an amount imparting osteogenic properties for the composition.Type: ApplicationFiled: April 13, 2005Publication date: August 25, 2005Applicant: INION LTD.Inventors: Eija Pirhonen, Jan Nieuwenhuis, Auvo Kaikkonen, Tuomo Nieminen, Franz Weber
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Patent number: 6926903Abstract: Novel polymer compositions that are useful in the manufacture of medical implants, implants having osteogenic properties and methods of making said implants are disclosed. Polymer compositions comprise a base material including a polymer matrix of resorbable polymer(s) or copolymer(s), and N-methyl-2-pyrrolidone (NMP), wherein NMP is present in an amount imparting osteogenic properties for the composition.Type: GrantFiled: December 4, 2001Date of Patent: August 9, 2005Assignee: Inion Ltd.Inventors: Eija Pirhonen, Jan Nieuwenhuis, Auvo Kaikkonen, Tuomo Nieminen, Franz Weber
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Publication number: 20040092950Abstract: An instrument for shaping a mouth part of a drilled tunnel provided in a bone. The instrument includes a shaft having a longitudinal axis and a first and a second end. The first end of the shaft is provided with a projection, which includes a blade for shaping the mouth part of the drilled tunnel when the instrument is turned around the longitudinal axis of the shaft. The instrument is asymmetric at an intersecting surface perpendicular to the longitudinal axis and intersecting with the blade, the instrument thus shaping the surfaces surrounding the first end only substantially within an area corresponding with a turning angle of such a turning movement.Type: ApplicationFiled: April 22, 2003Publication date: May 13, 2004Applicant: Inion Ltd.Inventors: Timo Pohjonen, Auvo Kaikkonen, Jan Nieuwenhuis, Pia Ahvenjarvi, Olli Karhi, Timo Reunamaki, Jukka Koljonen
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Patent number: 6730721Abstract: The invention relates to a process for molding a copolymer of a polyalkylene glycol terephthalate and an aromatic ester, comprising the steps of: a) preparing a solution of the copolymer in a suitable first solvent; and b) forming a gel of the solution.Type: GrantFiled: January 15, 2002Date of Patent: May 4, 2004Assignee: IsoTis N.V.Inventors: Jeroen Mattijs Bezemer, Joost Robert de Wijn, Jan Nieuwenhuis
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Publication number: 20030199878Abstract: A surgical implant made of a polymer, copolymer, polymer mixture or polymer composite that dissolves in the organ system. The manufacturing material is dyed with the coloring agent D&C Violet No. 2 or D&C Green No. 6. Preferably, the amount of the coloring agent is at most approximately 0.03 percent by weight and the implant is sterilized by radiation.Type: ApplicationFiled: July 22, 2002Publication date: October 23, 2003Applicant: Inion, Ltd.Inventors: Timo Pohjonen, Timo Reunamaki, Auvo Kaikkonen, Jan Nieuwenhuis, Pia Ahvenjarvi
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Patent number: 6607548Abstract: A novel polymer composition is provided which includes a base material including a biodegradable polymer or copolymer, and a copolymer additive including one or more monomers imparting a tensile strength to the polymer composition at room temperature that is lower than a tensile strength at room temperature for the base material.Type: GrantFiled: May 17, 2001Date of Patent: August 19, 2003Assignee: Inion Ltd.Inventors: Timo Pohjonen, Harri Happonen, Pertti Helevirta, Auvo Kaikkonen, Jan Nieuwenhuis, Piet E. Haers, Hermann Sailer
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Publication number: 20030105530Abstract: A biodegradable implant and a method for manufacturing one. The implant comprises a matrix component containing at least one biodegradable polymer or copolymer and a plasticizer that is adapted to substantially reduce the rigidity of the implant. The plasticizer substantially exists from the implant after coming into contact with tissue fluids of the organ system in such a manner that the bending resistance of the implant prior to the insertion of the implant into the organ system is substantially lower than after its insertion into the organ system.Type: ApplicationFiled: December 4, 2001Publication date: June 5, 2003Applicant: INION LTD.Inventors: Eija Pirhonen, Timo Pohjonen, Jan Nieuwenhuis
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Publication number: 20030104029Abstract: Novel polymer compositions that are useful in the manufacture of medical implants, implants having osteogenic properties and methods of making said implants are disclosed. Polymer compositions comprise a base material including a polymer matrix of resorbable polymer(s) or copolymer(s), and N-methyl-2-pyrrolidone (NMP), wherein NMP is present in an amount imparting osteogenic properties for the composition.Type: ApplicationFiled: December 4, 2001Publication date: June 5, 2003Applicant: INION LTD.Inventors: Eija Pirhonen, Jan Nieuwenhuis, Auvo Kaikkonen, Tuomo Nieminen, Franz Weber
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Patent number: 6500193Abstract: The invention relates to a suture comprising a copolymer of a polyethylene glycol terephtalate and a polybutylene terephtalate, which copolymer comprises 45-60 wt. %, based on the weight of the copolymer, of the polyethylene glycol terephtalate, and 55-40 wt. %, based on the weight of the copolymer, of the polybutylene terephtalate.Type: GrantFiled: July 12, 2000Date of Patent: December 31, 2002Assignee: IsoTis N.V.Inventors: Jeroen Mattijs Bezemer, Joost Robert de Wijn, Jan Nieuwenhuis
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Publication number: 20020177851Abstract: A fastening means for treatment of fractures and a material for the production thereof. The fastening means comprises a head (1), which is provided with a contact portion for an installation tool, and an attaching part (3), which comprises a screw thread (4). The fastening means can be fixed into its mounting hole in two ways: like a screw or like a tack. The material for producing a fastening means intended for treatment of fractures is a blend which contains a base material, which is biodegradable polymer and/or copolymer, and one or more copolymer additives so that at room temperature the ductility of the blend is substantially higher than that of pure base material.Type: ApplicationFiled: May 17, 2001Publication date: November 28, 2002Inventors: Harri Happonen, Timo Pohjonen, Auvo Kaikkonen, Jan Nieuwenhuis
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Publication number: 20020173595Abstract: A novel polymer composition is provided which includes a base material including a biodegradable polymer or copolymer, and a copolymer additive including one or more monomers imparting a tensile strength to the polymer composition at room temperature that is lower than a tensile strength at room temperature for the base material.Type: ApplicationFiled: May 17, 2001Publication date: November 21, 2002Inventors: Timo Pohjonen, Harri Happonen, Pertti Helevirta, Auvo Kaikkonen, Jan Nieuwenhuis, Piet E. Haers, Hermann Sailer
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Publication number: 20020161371Abstract: The invention relates to a fixative device for bone tissue, which device comprises a copolymer of a polyalkylene glycol and an aromatic polyester.Type: ApplicationFiled: February 1, 2002Publication date: October 31, 2002Applicant: Iso Tis N.V.Inventors: Jeroen Mattijs Bezemer, Joost Robert De Wijn, Jan Nieuwenhuis, Paul Carel Hubertus De Joode, Clements Antoni Van Blitterswijk
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Publication number: 20020128378Abstract: The invention relates to a process for molding a copolymer of a polyalkylene glycol terephthalate and an aromatic ester, comprising the steps of: a) preparing a solution of the copolymer in a suitable first solvent; and b) forming a gel of the solution.Type: ApplicationFiled: January 15, 2002Publication date: September 12, 2002Applicant: IsoTis N.V.Inventors: Jeroen Mattijs Bezemer, Joost Robert de Wijn, Jan Nieuwenhuis
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Patent number: 5053485Abstract: A polymer lactide is prepared by the polymerization of meso-3,6-dimethyl-1,4-dioxane-2,5-dione or mesodilactide and, if desired, other monomers. The mesolactide monomer has preferably a free acid content of less than 1 meq/kg dilactide and is then polymerized in a manner known per se. The compositions containing polymesolactide obtained according to this process do not posess the typical characteristics of poly-DL-lactide, poly-D-lactide or poly-L-lactide. A shorter degradation time of a substrate based on the present polymer is unofficial for several purposes. The present polymers have a good biocompatibility and are thus suited for bone plates, clamps and sutures and controlled release of biologically active compounds. The present polylactides and/or copolymers thereof have the benefit of a good biodegradability, biocompatibility, non-toxicity and non-mutagenicity.Type: GrantFiled: June 12, 1990Date of Patent: October 1, 1991Assignee: C.C.A. Biochem B.V.Inventors: Jan Nieuwenhuis, Arie C. Mol