Patents by Inventor Jan D. Seppala

Jan D. Seppala 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: 7226472
    Abstract: The present invention provides a catheter balloon having an advantageous cone design. In particular, the catheter balloon has at least one cone section with a volume in mm3 such that, when the ratio of one cone volume to the transverse cross-sectional area in mm2 of the inflated median section is at least about 2.1 mm. In certain applications, the advantageous cone design can assist in the preferential expansion of the cone sections prior to any significant expansion of the median section. The balloon can thus advantageously be utilized as a component of a balloon catheter or prosthesis delivery system, also provided via the present invention. When so utilized, the inventive balloon can assist in reducing any shifting of the balloon and/or prosthesis during inflation or delivery, respectively. Methods of utilizing the balloon catheters in dilation procedures, as well as the prosthesis delivery systems to deliver prosthesis, are also provided.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: June 5, 2007
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Gary John Pederson, Jr., Jan D. Seppala, John Robert Moberg, Steven Paul Mertens
  • Patent number: 6726714
    Abstract: This invention relates to catheters used for delivering medical devices. The catheter incorporates sleeves which aid in containing the medical device on the catheter, wherein the sleeves have portions comprising high modulus material to aid in the function of the sleeves.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: April 27, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Fernando DiCaprio, Jan D. Seppala, Kyle P. Taylor
  • Publication number: 20040073250
    Abstract: The present invention provides a catheter balloon having an advantageous cone design. In particular, the catheter balloon has at least one cone section with a volume in mm3 such that, when the ratio of one cone volume to the transverse cross-sectional area in mm2 of the inflated median section is at least about 2.1 mm. In certain applications, the advantageous cone design can assist in the preferential expansion of the cone sections prior to any significant expansion of the median section. The balloon can thus advantageously be utilized as a component of a balloon catheter or prosthesis delivery system, also provided via the present invention. When so utilized, the inventive balloon can assist in reducing any shifting of the balloon and/or prosthesis during inflation or delivery, respectively. Methods of utilizing the balloon catheters in dilation procedures, as well as the prosthesis delivery systems to deliver prosthesis, are also provided.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 15, 2004
    Inventors: Gary John Pederson, Jan D. Seppala, John Robert Moberg, Steven Paul Mertens
  • Publication number: 20030033000
    Abstract: This invention relates to catheters used for delivering medical devices. The catheter incorporates sleeves which aid in containing the medical device on the catheter, wherein the sleeves have portions comprising high modulus material to aid in the function of the sleeves.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 13, 2003
    Inventors: Fernando DiCaprio, Jan D. Seppala, Kyle P. Taylor
  • Patent number: 6444324
    Abstract: A dilatation balloon comprising an inner surface and an outer surface, the inner surface having a lubricious material disposed thereon to reduce friction or prevent adherence of adjacent layers, and thus reduce the pressure required for inflation.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: September 3, 2002
    Assignee: SciMed Life Systems, Inc.
    Inventors: Dachuan Yang, Scott L. Sjoquist, Jan D. Seppala
  • Patent number: 6432080
    Abstract: Improved stent securement in a balloon catheter including balloon modification. The improvement comprises a circumferential fold in at least one of the distal cone portion and proximal cone portion over a portion of the body portion. The fold includes first and second layers of balloon material which are touching each other in a plurality of locations. The fold encompasses a circumferential end portion of the stent for securing it in place until dilation of the balloon.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: August 13, 2002
    Assignee: Scimed Life Systems, INC
    Inventors: Gary J. Pederson, Jr., Jan D. Seppala, Scott M. Hanson
  • Publication number: 20020072789
    Abstract: A stent delivery system having one or more stent retaining sleeves. The at least one sleeve having at least one lubricant application port, the at least one lubricant application port defining an opening through the at least one sleeve. The opening constructed and arranged to allow a lubricious substance to pass through the at least one sleeve and at least partially coat a portion of the balloon and/or stent positioned thereunder.
    Type: Application
    Filed: December 12, 2000
    Publication date: June 13, 2002
    Inventors: Steven S. Hackett, Fernando DiCaprio, Kyle P. Taylor, Jan D. Seppala
  • Publication number: 20020068180
    Abstract: A dilatation balloon comprising an inner surface and an outer surface, the inner surface having a lubricious material disposed thereon to reduce friction or prevent adherence of adjacent layers, and thus reduce the pressure required for inflation.
    Type: Application
    Filed: December 1, 2000
    Publication date: June 6, 2002
    Inventors: Dachuan Yang, Scott L. Sjoquist, Jan D. Seppala
  • Patent number: 6391420
    Abstract: The invention is an extruded bicomponent elastomeric netting having unidirectional elasticity. Such a netting product is a non-woven article employing a non-elastic material such as polypropylene (10) in the machine direction strands and an elastic material such as a styrenic block copolymer (12) in the cross machine direction strands. The reverse arrangement, a product with “reverse strand distribution”, is also possible.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: May 21, 2002
    Assignee: Leucadia, Inc.
    Inventors: Hans O. Cederblad, Jan D. Seppala
  • Publication number: 20020038140
    Abstract: A stent delivery system comprising a catheter. The catheter including a stent mounting region and a stent disposed thereabout. The stent having a distal end and a proximal end, and an unexpanded state and an expanded state. At least one stent retaining sleeve, having a first end and a second end, wherein the first end overlays an end of the stent when the stent is in the unexpanded state. The second end engaged to at least a portion of the catheter adjacent to the stent mounting region. The stent retaining sleeve(s) comprising a first material and at least one substantially longitudinally oriented fiber of a second material. The first material having a predetermined tensile modulus and the second material having a predetermined tensile modulus, wherein the predetermined tensile modulus of the second material is greater than that of the first material.
    Type: Application
    Filed: December 29, 2000
    Publication date: March 28, 2002
    Inventors: Dachuan Yang, Paul J. Miller, Jan D. Seppala, Albert C. C. Chin, John Jianhua Chen, Daniel J. Horn
  • Publication number: 20020007192
    Abstract: Improved stent securement in a balloon catheter including balloon modification.
    Type: Application
    Filed: July 3, 2001
    Publication date: January 17, 2002
    Inventors: Gary J. Pederson, Jan D. Seppala, Scott M. Hanson
  • Patent number: 6280412
    Abstract: A stent-carrying balloon catheter in which a balloon is positioned within a stent for expanding the stent upon dilation of the balloon. The balloon includes a circumferential fold over a portion of the balloon itself, the fold encompassing a circumferential end portion of the stent for securing it in place until dilation of the balloon.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: August 28, 2001
    Assignee: Scimed Life Systems, Inc.
    Inventors: Gary J. Pederson, Jr., Jan D. Seppala, Scott M. Hanson, Anthony C. Vrba, Scott R. Smith
  • Patent number: 5885686
    Abstract: Bicomponent elastomeric extruded netting having bidirectional elasticity is formed of one set of relatively elastic, extruded strands in one direction and another set of transverse, relatively elastic extruded strands. The strands are formed of relatively elastic resins.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: March 23, 1999
    Assignee: Leucadia, Inc.
    Inventors: Hans O. Cederblad, Jan D. Seppala