Patents by Inventor Dennis D. Jamiolkowski

Dennis D. Jamiolkowski 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).

  • Removable stent for body lumens
    Patent number: 6494908
    Abstract: A removable stent for implantation into a lumen in a human body. The stent is made from a soft, flexible fiber having an outer surface. An outer bioabsorbable/degradable coating is applied to the outer surface of the filament causing it to become rigid. The coating softens in vivo through absorption and/or degradation such that the stent is readily passed or removed from the lumen as a softened filament after a pre-determined period of time through normal flow of body fluids passing through the lumen or by manual removal.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: December 17, 2002
    Assignee: Ethicon, Inc.
    Inventors: Shawn Thayer Huxel, Arindam Datta, Yufu Li, Dennis D. Jamiolkowski, E. Richard Skula
  • Synthetic absorbable autoclaveable monofilament fibers and brachytherapy seed spacers
    Publication number: 20020180096
    Abstract: The present invention is directed to absorbable, autoclaveable, monofilament fibers prepared from absorbable glycolide-rich polymers, in which the fibers are oriented in the total draw ratio range 4.1 to 5.9X, and are annealed at a temperature between about 165° C. and about 185° C; to brachytherapy seed spacers manufactured from the absorbable, autoclaveable, glycolide-rich polymers, monofilament fibers; and to methods of manufacturing such fibers and brachytherapy seed spacers.
    Type: Application
    Filed: May 13, 2002
    Publication date: December 5, 2002
    Inventors: John J. Karl, Nicholas Popadiuk, Dennis D. Jamiolkowski, Kenneth Michael Keilman, Sasa Andjelic
  • Removable stent for body lumens
    Publication number: 20020177904
    Abstract: A removable stent for implantation into a lumen in a human body. The stent is made from a soft, flexible fiber having an outer surface. An outer bioabsorbable/degradable coating is applied to the outer surface of the filament causing it to become rigid. The coating softens in vivo through absorption and/or degradation such that the stent is readily passed or removed from the lumen as a softened filament after a pre-determined period of time through normal flow of body fluids passing through the lumen or by manual removal.
    Type: Application
    Filed: July 16, 2002
    Publication date: November 28, 2002
    Inventors: Shawn Thayer Huxel, Arindam Datta, Yufu Li, Dennis D. Jamiolkowski, E. Richard Skula
  • BIODEGRADABLE STENT
    Publication number: 20020143388
    Abstract: A biodegradable stent for implantation into a lumen in a human body. The stent in one embodiment is made from a biodegradable fiber having an inner core and an outer layer. The outer layer is a blend of two polymer components. The inner core has a first degradation rate, and the outer layer has a second degradation rate. The second degradation rate is slower than the first degradation rate. The fiber softens in vivo such that the stent is readily passed from the lumen as a softened fragment or filament after a pre-determined period of time through normal flow of body fluids passing through the lumen.
    Type: Application
    Filed: August 20, 2001
    Publication date: October 3, 2002
    Inventors: Arindam Datta, Shawn Thayer Huxel, Dennis D. Jamiolkowski, Yufu Li
  • Hydrogels containing absorbable polyoxaamides
    Patent number: 6458385
    Abstract: The present invention describes a crosslinked aliphatic polyoxaamide polymer and blends thereof that may be used to produce hydrogels, surgical devices such as catheters, molded devices, and the like. The crosslinked aliphatic polyoxaamide of the present invention are formed by crosslinking an aliphatic polyoxaamide having a first divalent repeating unit of formula I: [X—C(O)—C(R1)(R2)—O—(R3)—O—C(R1)(R2)—C(O)—]  I and a second repeating unit selected from the group of formulas consisting of: [—Y—R17—]T,  II [—O—R5—C(O)—]B, and  III ([—O—R9—C(O)]P—O—)LG  XI and combinations thereof, wherein X and Y are selected from the group consisting of —C— and —N(R)—, provided both X and Y are not both —O— and may be blended with a second polymer that is preferably biocompatable.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: October 1, 2002
    Assignee: Ethicon, Inc.
    Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada
  • Biodegradable stent
    Patent number: 6423092
    Abstract: A biodegradable stent for implantation into a lumen in a human body. The stent in one embodiment is made from a biodegradable fiber having an inner core and an outer layer. The outer layer is a blend of two polymer components. The inner core has a first degradation rate, and the outer layer has a second degradation rate. The second degradation rate is slower than the first degradation rate. The fiber softens in vivo such that the stent is readily passed from the lumen as a softened fragment or filament after a predetermined period of time through normal flow of body fluids passing through the lumen.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: July 23, 2002
    Assignee: Ethicon, Inc.
    Inventors: Arindam Datta, Shawn Thayer Huxel, Dennis D. Jamiolkowski, Yufu Li
  • Process of making synthetic absorbable autoclaveable monofilament fibers and brachytherapy seed spacers
    Patent number: 6419866
    Abstract: The present invention is directed to absorbable, autoclaveable, monofilament fibers prepared from absorbable glycolide-rich polymers, in which the fibers are oriented in the total draw ratio range 4.1 to 5.6×, and are annealed at a temperature between about 165° C. and about 185° C.; to brachytherapy seed spacers manufactured from the absorbable, autoclaveable, glycolide-rich polymers, monofilament fibers; and to methods of manufacturing such fibers and brachytherapy seed spacers.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: July 16, 2002
    Assignee: Ethicon, Inc.
    Inventors: John J. Karl, Nicholas Popadiuk, Dennis D. Jamiolkowski, Kenneth Michael Keilman, Sa{haeck over (s)}a Andjelić
  • Wedge shaped suture anchor and method of implantation
    Publication number: 20020087188
    Abstract: A suture anchor is described which in one form may be easily fabricated from extruded material by angular cuts and bore holes which provide an offset pulling force to the suture. In an alternate and preferred embodiment the suture anchor is injection molded having an annular displaced corner and abutment wall which act to seat the suture anchor firmly within a bore hole. Novel application means are also disclosed which hold the suture anchor on a frangible shaft for insertion and upon completion of the insertion permit fracture of the frangible portion and removal of the instrument.
    Type: Application
    Filed: August 7, 2001
    Publication date: July 4, 2002
    Applicant: Mitek Surgical Products, Inc.
    Inventors: Jack S. Pedlick, Thu Anh Le, John DiGiovanni, Dennis D. Jamiolkowski, Mark J. Suseck
  • Method of preventing adhesions with absorbable polyoxaesters
    Patent number: 6403655
    Abstract: The present invention describes a method of preventing adhesion formation between tissues in an animal by placing a sterile polyoxaester adhesion prevention barrier between the tissues of the animal to prevent an adhesion from forming.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: June 11, 2002
    Assignee: Ethicon, Inc.
    Inventors: Rao S. Bezwada, Dennis D. Jamiolkowski
  • Hydrogels containing absorbable polyoxaamides
    Patent number: 6372256
    Abstract: The present invention describes a crosslinked aliphatic polyoxaamide polymer and blends thereof that may be used to produce hydrogels, surgical devices such as catheters, molded devices, and the like.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: April 16, 2002
    Assignee: Ethicon, Inc.
    Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada
  • Biodegradable stent
    Publication number: 20020019661
    Abstract: A biodegradable stent for implantation into a lumen in a human body. The stent in one embodiment is made from a biodegradable fiber having an inner core and an outer layer. The outer layer is a blend of two polymer components. The inner core has a first degradation rate, and the outer layer has a second degradation rate. The second degradation rate is slower than the first degradation rate. The fiber softens in vivo such that the stent is readily passed from the lumen as a softened fragment or filament after a pre-determined period of time through normal flow of body fluids passing through the lumen.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 14, 2002
    Inventors: Arindam Datta, Shawn Thayer Huxel, Dennis D. Jamiolkowski, Yufu Li
  • Biodegradable stent
    Patent number: 6338739
    Abstract: A biodegradable stent for implantation into a lumen in a human body. The stent in one embodiment is made from a biodegradable fiber having an inner core and an outer layer. The outer layer is a blend of two polymer components. The inner core has a first degradation rate, and the outer layer has a second degradation rate. The second degradation rate is slower than the first degradation rate. The fiber softens in vivo such that the stent is readily passed from the lumen as a softened fragment or filament after a predetermined period of time through normal flow of body fluids passing through the lumen.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: January 15, 2002
    Assignee: Ethicon, Inc.
    Inventors: Arindam Datta, Shawn Thayer Huxel, Dennis D. Jamiolkowski, Yufu Li
  • Removable stent for body lumens
    Publication number: 20020002399
    Abstract: A removable stent for implantation into a lumen in a human body. The stent is made from a soft, flexible fiber having an outer surface. An outer bioabsorbable/degradable coating is applied to the outer surface of the flament causing it to become rigid. The coating softens in vivo through absorption and/or degradation such that the stent is readily passed or removed from the lumen as a softened filament after a pre-determined period of time through normal flow of body fluids passing through the lumen or by manual removal.
    Type: Application
    Filed: May 8, 2001
    Publication date: January 3, 2002
    Inventors: Shawn Thayer Huxel, Arindam Datta, Yufu Li, Dennis D. Jamiolkowski, Emil Richard Skula
  • Fabrication of biocompatible polymeric composites
    Patent number: 6303697
    Abstract: Composite materials formed from biocompatible polymer fibers and biodegradable polymers are disclosed. The heat treatment conditions for the reinforcing fibers are described so that the mechanical properties of the fibers can be retained during composite consolidation process. The processing conditions and set-ups to consolidations are constrained to the temperatures lower than fiber heat treatment temperatures. The reinforcing fibers are restrained under tension so that the minimum relaxation occurs during consolidation process.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: October 16, 2001
    Assignee: Ethicon, Inc.
    Inventors: J. Jenny Yuan, Arindam Datta, Dennis D. Jamiolkowski
  • Hydrogels containing absorbable polyoxaamides
    Publication number: 20010026793
    Abstract: The present invention describes a crosslinked aliphatic polyoxaamide polymer and blends thereof that may be used to produce hydrogels, surgical devices such as catheters, molded devices, and the like.
    Type: Application
    Filed: May 2, 2001
    Publication date: October 4, 2001
    Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada
  • Hydrogels containing absorbable polyoxaamides
    Publication number: 20010021377
    Abstract: The present invention describes a crosslinked aliphatic polyoxaamide polymer and blends thereof that may be used to produce hydrogels, surgical devices such as catheters, molded devices, and the like.
    Type: Application
    Filed: April 10, 2001
    Publication date: September 13, 2001
    Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada
  • Braided suture with improved knot strength and process to produce same
    Publication number: 20010018599
    Abstract: The present invention discloses a process for producing a braided suture having an improved knot strength comprising heating a braided suture coated with a low molecular weight biocompatible polymer to a temperature sufficient to melt the low molecular weight biocompatible polymer for a time sufficient to allow the low molecular polymer to be redistributed into the interstices of the braided suture thereby providing a coated braided suture with an improved knot tensile strength. Also disclosed is the coated braided suture having a low molecular weight polymer optimally dispersed throughout the braided suture's cross-section.
    Type: Application
    Filed: March 7, 2001
    Publication date: August 30, 2001
    Inventors: Margaret D'Aversa, Howard L. Scalzo, Dennis D. Jamiolkowski, Rao S. Bezwada, Donald G. Hill, Alastair W. Hunter
  • Method of preventing adhesions with absorbable polyoxaesters
    Publication number: 20010012511
    Abstract: The present invention describes a method of preventing adhesion formation between tissues in an animal by placing a sterile polyoxaester adhesion prevention barrier between the tissues of the animal to prevent an adhesion from forming.
    Type: Application
    Filed: February 9, 2001
    Publication date: August 9, 2001
    Inventors: Rao S. Bezwada, Dennis D. Jamiolkowski
  • Wedge shaped suture anchor and method of implantation
    Patent number: 6270518
    Abstract: A suture anchor is described which in one form may be easily fabricated from extruded material by angular cuts and bore holes which provide an offset pulling force to the suture. In an alternate and preferred embodiment the suture anchor is injection molded having an annular displaced corner and abutment wall which act to seat the suture anchor firmly within a bore hole. Novel application means are also disclosed which hold the suture anchor on a frangible shaft for insertion and upon completion of the insertion permit fracture of the frangible portion and removal of the instrument.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: August 7, 2001
    Assignee: Mitek Surgical Products, Inc.
    Inventors: Jack S. Pedlick, Thu Anh Le, John DiGiovanni, Dennis D. Jamiolkowski, Mark J. Suseck
  • Hydrogels containing absorbable polyoxaamides
    Patent number: 6251435
    Abstract: The present invention describes a crosslinked aliphatic polyoxaamide polymer and blends thereof that may be used to produce hydrogels, surgical devices such as catheters, molded devices, and the like. The crosslinked aliphatic polyoxaamide of the present invention are formed by crosslinking an aliphatic polyoxaamide having a first divalent repeating unit of formula I: [X—C(O)—C(R1)(R2)—O—(R3)—O—C(R1)(R2)—C(O)—]  I and a second repeating unit selected from the group of formulas consisting of: [—Y—R17—]T,  II [—O—R5—C(O)—]B,  III and ([—O—R9—C(O)]P—O—)LG  XI and combinations thereof, wherein X and Y are selected from the group consisting of —O— and —N(R)—, provided both X and Y are not both —O— and may be blended with a second polymer that is preferably biocompatable.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: June 26, 2001
    Assignee: Ethicon, Inc.
    Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada