Patents by Inventor Pentti Tengvall

Pentti Tengvall 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).

  • Publication number: 20100015203
    Abstract: The present invention provides a non-clottable matrix on a solid support comprising immobilized and crosslinked fibrinogen. The matrix may further comprise, in and/or on the matrix, one or several biologically active compound(s) and/or pharmacological substance(s). The matrix may be composed of one or several fibrinogen layer(s). The solid support according to the present invention may be selected from the group consisting of orthopaedic devices, implants, stitches, stents, pins, screws, plates, and sutures.
    Type: Application
    Filed: February 26, 2008
    Publication date: January 21, 2010
    Applicant: ADDBIO AB
    Inventors: Pentti Tengvall, Ella Cathrine Vikinge
  • Publication number: 20090177228
    Abstract: Disclosed is a coated suture thread comprising a matrix formed by an immobilized and crosslinked plurality of fibrinogen layers into and/or onto which one or several pharmacological substances that inhibit tissue break-down, such as MMP inhibitors and/or corticosteroids and/or COX inhibitors, are attached and/or associated. Further, a method of producing such a coated suture thread as well as the use thereof for suturing damaged tissue, such as damaged tendon, ligament, intestine and/or skin, are described.
    Type: Application
    Filed: February 21, 2006
    Publication date: July 9, 2009
    Applicant: Optovent AB
    Inventors: Per Vilhelm Aspenberg, Pentti Tengvall, Björn Pasternak
  • Publication number: 20060003917
    Abstract: The method of the present invention is for coating an implant device. The implant device is coated with a protein film, such as fibrinogen. A first bisphosphonate substance, such as pamidronate, is immobilized to the protein film. A second bisphosphonate substance, such ibandronate, is adsorbed to the first bisphosphonate wherein the first bisphosphonate is different from the second bisphosphonate.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 5, 2006
    Inventors: Per Aspenberg, Pentti Tengvall
  • Publication number: 20060002970
    Abstract: The method of the present invention is for coating a suture thread. The suture thread is coated with a protein film, such as fibrinogen. An active enzyme inhibitor, such as a matrix metallo proteinase inhibitor, is immobilized to or associated with the film.
    Type: Application
    Filed: May 26, 2005
    Publication date: January 5, 2006
    Inventors: Per Aspenberg, Pentti Tengvall, Bjorn Pasternak
  • Patent number: 6379976
    Abstract: An analytical method of qualitative and optionally quantitative determination of the occurrence of polymerization/coagulation in a fluid containing polymerizable/coagulable components is described. The method comprises the steps of directing incident beams of electromagnetic radiation through a transparent support on which a film of electrically conducting material is placed, to the back of the film, at angles equal to or greater than the critical angle for total reflection, and measuring changes in the reflected beams due to changes in the surface plasmon resonance angle. Repeated measurements are correlated to the occurrence and magnitude of changes with qualitative and optionally quantitative occurrence of polymerization/coagulation in the fluid. The analytical method is not volume dependent since only one (small) surface of the measuring instrument needs to be in contact with the fluid. Further, the method can also be applied to poorly transparent fluids such as blood.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: April 30, 2002
    Assignee: Global Hemostasis Institute MGR AB
    Inventors: Pentti Tengvall, Ingemar Lundstrom
  • Patent number: 5152993
    Abstract: A method of preparing an implant body in order to optimize the healing time of said implant, comprising bringing the implant body for a limited period of time into contact with a hydrogen peroxide solution at least on the surfaces intended to come into contact with surrounding tissue when implanted, the treated surfaces being cleaned by rinsing. The treatment of the implant surface with hydrogen peroxide can be supplemented with incorporation of biomolecules, such as peptides, proteins and steroids, and also other substances such as inorganic ions and crystals. The compounds to be coupled to the implant surface may promote the healing and/or binding of the surrounding tissue.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: October 6, 1992
    Assignee: Ellem Bioteknik AB
    Inventors: Lars-Magnus Bjursten, Pentti Tengvall, Ingemar Lundstrom
  • Patent number: 5045318
    Abstract: The reaction product of H.sub.2 O.sub.2 and metallic titanium, a titanium peroxy radical gel, exhibits oxidizing and anti-inflammatory effects and is used, for instance, as a biocompatible oxidant, an anti-inflammatory agent or in vitro coating of an implant body. The gel-like product is produced by treating metallic titanium with H.sub.2 O.sub.2.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: September 3, 1991
    Assignee: The Institute for Applied Biotechnology
    Inventors: Pentti Tengvall, Lars-Magnus Bjursten, Ingemar Lundstrom