Patents by Inventor Esa Suokas

Esa Suokas 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).

  • Patent number: 7964206
    Abstract: Porous bioabsorbable, bioactive and load-bearing composite medical device structure includes a plurality of regular textile planar layers (1a, 1b . . . ) formed of continuous bioabsorbable polymer matrix and bioceramic fibers acting as reinforcements, both included in continuous fibrous elements (3) forming the textile layers. The layers are placed on top of each other to form a structure having two dimensions (x, y) at right angles to each other according to the two dimensions of the textile layer and a third dimension (z) perpendicular to them and resulting from the piling of the layers. A plurality of passages extend through the layers as a result of the openings (2) defined by portions of the continuous fibrous elements (3) extending substantially in the direction of the plane.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: June 21, 2011
    Assignee: Bioretec Oy
    Inventors: Esa Suokas, Pertti Törmälä, Nureddin Ashammakhi, Heimo Ylänen, Mikko Hupa
  • Patent number: 7419681
    Abstract: A method of enhancing the drug release rate from a composite material. The composite material includes a synthetic, bioabsorbable polymer matrix and a drug particle phase dispersed therein. The release rate of the drug from the polymer matrix is enhanced by orienting the composite material. The drug release rate of the oriented composite material is greater than the drug release rate from an otherwise comparable non-oriented composite material.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: September 2, 2008
    Assignee: Bioretec, Ltd.
    Inventors: Pertti Törmälä, Esa Suokas, Minna Veiranto, Nureddin Ashammakhi
  • Publication number: 20070141111
    Abstract: Porous bioabsorbable, bioactive and load-bearing composite medical device structure includes a plurality of regular textile planar layers (1a, 1b . . . ) formed of continuous bioabsorbable polymer matrix and bioceramic fibers acting as reinforcements, both included in continuous fibrous elements (3) forming the textile layers. The layers are placed on top of each other to form a structure having two dimensions (x, y) at right angles to each other according to the two dimensions of the textile layer and a third dimension (z) perpendicular to them and resulting from the piling of the layers. A plurality of passages extend through the layers as a result of the openings (2) defined by portions of the continuous fibrous elements (3) extending substantially in the direction of the plane.
    Type: Application
    Filed: August 20, 2004
    Publication date: June 21, 2007
    Applicant: BIORETEC OY
    Inventors: Esa Suokas, Pertti Tormala, Nureddin Ashammakhi, Heimo Ylanen, Mikko Hupa
  • Publication number: 20070134292
    Abstract: The invention relates to synthetic, bioabsorbable polymer materials and implants, like fibres, sutures, meshes and other tissue management, wound closure or tissue engineering devices, which contain: a) a bioabsorbable polymeric matrix; b) antibiotic and/or anti-inflammatory agent particles or mixture thereof, dispersed in the matrix, and c) optionally an additive agent to facilitate device recognition and/or handling to facilitate the use and application of finalized product. In the matrix, cavities around the particles are induced by mechanical processing of the matrix phase. A preferred embodiment of the present invention is a device (suture) that provides a sustained release of antibiotic agent over several days to several weeks for the prevention or treatment of infection. The sutures may be effectively implanted into or in the vicinity of: 1) infected tissue, 2) potentially infected tissue, or in tissues where infection, should it occur, leads to disastrous consequences.
    Type: Application
    Filed: July 19, 2004
    Publication date: June 14, 2007
    Inventors: Esa Suokas, Nureddin Ashammakhi, Pertti Tormala
  • Publication number: 20060121082
    Abstract: A method of enhancing the drug release rate from a composite material. The composite material includes a synthetic, bioabsorbable polymer matrix and a drug particle phase dispersed therein. The release rate of the drug from the polymer matrix is enhanced by orienting the composite material. The drug release rate of the oriented composite material is greater than the drug release rate from an otherwise comparable non-oriented composite material.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 8, 2006
    Inventors: Pertti Tormala, Esa Suokas, Minna Veiranto, Nureddin Ashammakhi
  • Publication number: 20060002979
    Abstract: A multifunctional biodegradable composite has: a) bioabsorbable polymer matrix phase (M) b) bioabsorbable reinforcing element (R), and c) bioactive tissue/cell reaction modifying agent (TRMA) dispersed in said bioabsorbable matrix phase and selected from the group consisting of anti-inflammatory drugs and statins. Said biodegradable composite may be in a surgical implant capable of acting as a drug-delivery implant.
    Type: Application
    Filed: June 15, 2005
    Publication date: January 5, 2006
    Inventors: Nureddin Ashammakhi, Esa Suokas, Pertti Tormala, Petrus Viitanen
  • Publication number: 20040009228
    Abstract: This invention relates to bioabsorbable materials and implants used to prevent and treat infection and promote bone growth. More specifically, this invention relates to synthetic bioabsorbable drug delivery materials and implants comprising: (a) a synthetic bioabsorbable polymeric matrix; (b) an antibiotic phase dispersed into said polymeric matrix; and (c) antibacterial, bioabsorbable, bioactive glass, dispersed into said polymeric matrix for the promotion of bone growth.
    Type: Application
    Filed: June 3, 2003
    Publication date: January 15, 2004
    Inventors: Pertti Tormala, Esa Suokas, Minna Veiranto
  • Patent number: 6579533
    Abstract: This invention relates to bioabsorbable materials and implants used to prevent and treat infection and promote bone growth. More specifically, this invention relates to synthetic bioabsorbable drug delivery materials and implants comprising: (a) a synthetic bioabsorbable polymeric matrix; (b) an antibiotic phase dispersed into said polymeric matrix; and (c) antibacterial, bioabsorbable, bioactive glass, dispersed into said polymeric matrix for the promotion of bone growth.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: June 17, 2003
    Assignee: Bioasborbable Concepts, Ltd.
    Inventors: Pertti Törmäla, Esa Suokas, Hannu Aro, Jyri Koort
  • Patent number: 6333086
    Abstract: The present invention concerns a multilayered polymer film structure, which comprises at least one first layer (1) containing a thermoplastic polymer and at least one second layer (2), arranged adjacent to said first layer, containing a liquid crystalline polymer. According to the invention, the second layer (2) consists essentially of a compounded polymer blend formed by the liquid crystalline polymer and a thermoplastic polymer, the liquid crystalline polymer of the second layer forms a continuous phase, and the first and the second layers (1, 2) contain the same thermoplastic polymer. The oxygen transmission rate of the second layer is less than about 150 cm3/(m2·d·bar), determined according to the standard ASTM D 3985-81, and the water vapour transmission rate of the integral film structure is less than 10 g/(m2·24·h) at RH 80% 23° C., determined according to ASTM F 1249-90. The present structure can be used as a barrier layer in packages.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: December 25, 2001
    Assignee: Optatech Corporation
    Inventors: Marja Ora, Esa Suokas, Mika Härkönen, Seppo Kuusela, Erkki Laiho
  • Patent number: 6146764
    Abstract: The lamellar layer is formed by overlapping plates of the liquid crystalline polymer in the isotropic matrix. The oxygen transmission rate of a 50 .mu.m thick layer of the monolayer structure is typically less than 150 cm.sup.3 /(m.sup.2 .multidot.d.multidot.bar).
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: November 14, 2000
    Assignee: Neste OY
    Inventors: Esa Suokas, Mika Harkonen
  • Patent number: 5888609
    Abstract: A planar porous composite structure including a plurality of regular textile planar layers formed of continuous yarns. The layers are placed on top of each other to form a structure having two dimensions at right angles to each other and a third dimension perpendicular to them and defining a plane having a direction along the two dimensions. A plurality of openings extends through the layers. Each opening is defined by portions of the continuous yarns extending substantially in the direction of the plane and existing in the regular textile planar layers to make the planar layers regular in structure prior to placing them on top of each other. A plurality of passages extends entirely through the structure in a direction substantially perpendicular to the plane of the structure.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: March 30, 1999
    Assignee: Valtion teknillinen tutkimuskeskus
    Inventors: Mikko Karttunen, Esa Suokas
  • Patent number: 5535786
    Abstract: A method for repairing flow conduits, such as pipe lines, wherein the inner surface of a conduit is provided with a flexible material, including a curing agent as well as a reinforcement layer, and the curing agent is hardened, the reinforcement layer comprising a knitted fabric, wherein the knitted fabric comprises reinforcement filaments which are separate from a fabric-forming yarn and extend inside the knitted fabric substantially in a single direction.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: July 16, 1996
    Assignee: Suomen Putkisaneeraus Oy
    Inventors: Seppo Makela, Seppo Jarvinen, Mikko Karttunen, Esa Suokas