Patents by Inventor Kimberly A. Chaffin

Kimberly A. Chaffin 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: 7968226
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a preferably planar, major bottom portion, an open top to receive the cover opposing the bottom portion, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device. The cover and the shallow case being substantially hermetically sealed by a laser weld technique and an insulator member disposed within the case to provide a barrier to incident laser radiation so that during welding radiation does not impinge upon radiation sensitive component(s) disposed within the case.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: June 28, 2011
    Assignee: Medtronic, Inc.
    Inventors: Paul B. Aamodt, Franise D. Bartley, Steve M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Jason T. Papenfuss, William J. Farrell, Kimberly A. Chaffin
  • Publication number: 20110123517
    Abstract: A pharmaceutical implant may include a pharmaceutical and at least one excipient, and may be configured to be implanted in a body of a patient. The at least one excipient may dissolve after implantation of the pharmaceutical implant in the body of the patient and release the pharmaceutical. In some examples, the pharmaceutical implant includes at least two pharmaceuticals. The at least one excipient may be selected to provide a desired release profile of the pharmaceutical. For example, the pharmaceutical implant may be configured to dissolve and release the pharmaceutical over a length of time between about one day and about 30 days. In some examples, the pharmaceutical implant may be implanted in the body of the patient proximate to an implantable medical device.
    Type: Application
    Filed: December 3, 2010
    Publication date: May 26, 2011
    Applicant: Medtronic, Inc.
    Inventors: Genevieve L. Gallagher, Kimberly Chaffin, Zhongping C. Yang
  • Patent number: 7879270
    Abstract: A process for producing a dilatation balloon by extruding a multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment. The balloon formed by the process demonstrates, during inflation, a true stress vs. nominal strain response curve comprising a first zone representative of a low modulus balloon, a second zone representative of a high strength balloon, and a sharp transition from the first zone to the second zone.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: February 1, 2011
    Assignees: Medtronic, Inc, Regents of the University of Minnesota
    Inventors: Ashish Varma, Kimberly A. Chaffin, Frank Bates, Marc Hillmyer, Lisa Lim
  • Publication number: 20100320634
    Abstract: A process for producing a dilatation balloon by extruding a multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment. The balloon formed by the process demonstrates, during inflation, a true stress vs. nominal strain response curve comprising a first zone representative of a low modulus balloon, a second zone representative of a high strength balloon, and a sharp transition from the first zone to the second zone.
    Type: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Inventors: Ashish Varma, Kimberly A. Chaffin, Frank Bates, Marc Hillmyer, Lisa Lim
  • Publication number: 20100317629
    Abstract: A pharmaceutical implant may include a pharmaceutical and at least one excipient, and may be configured to be implanted in a body of a patient. The at least one excipient may dissolve after implantation of the pharmaceutical implant in the body of the patient and release the pharmaceutical. In some examples, the pharmaceutical implant includes at least two pharmaceuticals. The at least one excipient may be selected to provide a desired release profile of the pharmaceutical. For example, the pharmaceutical implant may be configured to dissolve and release the pharmaceutical over a length of time between about one day and about 30 days. In some examples, the pharmaceutical implant may be implanted in the body of the patient proximate to an implantable medical device.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 16, 2010
    Applicant: Medtronic, Inc.
    Inventors: Genevieve L. Gallagher, Kimberly Chaffin, Zhongping Yang
  • Publication number: 20100196439
    Abstract: Various methods and devices are provided for providing therapy to a living body. In one embodiment, an implanted permeable container has living cells provided therein, and various nutrients and/or agents are provided into the container to promote cell life.
    Type: Application
    Filed: December 20, 2007
    Publication date: August 5, 2010
    Applicant: Medtronic, Inc.
    Inventors: Michael Theodore Beck, Deon Bezuidenhout, Kelvin Bonnema, Kimberly A. Chaffin, Neil Davies, Brian C.A. Fernandes, Eric J. Fogt, Eric A. Grovender, Robert Cushing Hamlen, Matthew Jolly, Eamonn J. McAndrew, Syamasundar V. Pakala, William P. VanAntwerp, Peter P. Zilla, Edouard A. Koullick
  • Publication number: 20090140449
    Abstract: A self-wrapping dilatation balloon comprising a multiblock copolymer having high elasticity and elastic recovery from nominal strains greater than about 30% is described. Also described herein, is a polymeric extrudate for making a dilatation balloon comprising a multiblock copolymer having tensile strength in the range of about 50 MPa to about 450 MPa, strain at break in the range of about 50% to about 600% and substantially complete elastic recovery from nominal strains of at least about 30%. The extrudate has phase-separated microdomains that are macroscopically aligned in parallel, perpendicular, transverse or a combination thereof. Also described herein is a process for producing a polymeric extrudate for use as a dilatation balloon. The process comprises extruding a multiblock copolymer mixture or composition to form an extrudate.
    Type: Application
    Filed: October 30, 2008
    Publication date: June 4, 2009
    Inventors: Ashish Varma, Kimberly A. Chaffin, Frank Bates, Marc Hillmyer, Lisa Lim, Tamotsu Harada
  • Publication number: 20070260250
    Abstract: A screw structured to engage bone has a stem with threads and an inner chamber. The inner chamber is in fluid communication with one or more ports along the stem. A polymeric material is provided with the screw. After implantation of the screw in bone, energy is applied to the polymeric material to convert the material to a more fluid form, and while in this form, the polymeric material is flowed from the inner chamber and out through the one or more ports into boney material to provide reinforcement.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 8, 2007
    Inventors: Paul Wisnewski, Kimberly Chaffin, Naim Istephanous, Brett Vegoe
  • Patent number: 7282213
    Abstract: A method for coating a medical device with a drug is provided. Energy, preferably thermal energy, is applied to a crystalline deposit of a drug on the surface of a medical device to increase the molecular mobility and form a conformable drug coating with a low density of micro-cracks and other mechanical defects that can degrade the coating toughness and effective adhesion to the device surface. In a preferred embodiment, solution evaporation methods are used to deposit a crystalline coating of an anti-inflammatory steroid on a medical electrode. Heat applied at a controlled temperature, for a predetermined amount of time, induces a solid-state phase change of the drug coating providing a smooth, uniform, well-attached, conformable coating to form a layer that will elute from the electrode over time when implanted in a patient's body.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: October 16, 2007
    Assignee: Medtronic, Inc.
    Inventors: Peter T. Schroeder, Kimberly A. Chaffin
  • Patent number: 7230039
    Abstract: Orthopedic compositions are provided that include a homogeneous mixture of a biocompatible polymer and a bioactive particulate ceramic wherein the ceramic has an average particle size of not more than 500 nm are provided. The compositions may be used to form bone cement or various spinal implants, including spinal spacers, interbody fusion cages, bone plates and bone screws. Methods for stabilizing a spine, for correcting a bone defect, and for promoting fusion of adjacent vertebrae are also provided.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: June 12, 2007
    Assignee: SDGI Holdings, Inc.
    Inventors: Hai H. Trieu, Kimberly A. Chaffin
  • Publication number: 20070099077
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a preferably planar, major bottom portion, an open top to receive the cover opposing the bottom portion, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device. The cover and the shallow case being substantially hermetically sealed by a laser weld technique and an insulator member disposed within the case to provide a barrier to incident laser radiation so that during welding radiation does not impinge upon radiation sensitive component(s) disposed within the case.
    Type: Application
    Filed: November 30, 2006
    Publication date: May 3, 2007
    Inventors: Paul Aamodt, Franise Bartley, Steve Bruesehoff, Kurt Casby, David Haas, Karl Hokanson, Thomas Nutzman, Andrew Ries, Scott Robinson, Randy Roles, Sonja Somdahl, Walter Sunderland, Jason Papenfuss, William Farrell, Kimberly Chaffin
  • Publication number: 20060096082
    Abstract: A method of forming a head space insulator for an electrochemical cell is presented. A polymer is selected. The polymer has a melting point lower than the melting point of separator material. The polymer is heated to place the polymer into a liquid state. The liquid polymer is introduced over one or more tabs associated with one or more electrode plates.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 11, 2006
    Inventors: Paul Aamodt, Karl Hokanson, Douglas Morelli, Kimberly Chaffin
  • Publication number: 20050118370
    Abstract: A self-wrapping dilatation balloon comprising a multiblock copolymer having high elasticity and elastic recovery from nominal strains greater than about 30% is described. Also described herein, is a polymeric extrudate for making a dilatation balloon comprising a multiblock copolymer having tensile strength in the range of about 50 MPa to about 450 MPa, strain at break in the range of about 50% to about 600% and substantially complete elastic recovery from nominal strains of at least about 30%. The extrudate has phase-separated microdomains that are macroscopically aligned in parallel, perpendicular, transverse or a combination thereof. Also described herein is a process for producing a polymeric extrudate for use as a dilatation balloon. The process comprises extruding a multiblock copolymer mixture or composition to form an extrudate.
    Type: Application
    Filed: August 18, 2004
    Publication date: June 2, 2005
    Applicant: Medtronic Vascular, Inc.
    Inventors: Ashish Varma, Kimberly Chaffin
  • Publication number: 20050098914
    Abstract: A self-wrapping dilatation balloon comprising a multiblock copolymer having high elasticity and elastic recovery from nominal strains greater than about 30% is described. Also described herein, is a polymeric extrudate for making a dilatation balloon comprising a multiblock copolymer having tensile strength in the range of about 50 MPa to about 450 MPa, strain at break in the range of about 50% to about 600% and substantially complete elastic recovery from nominal strains of at least about 30%. The extrudate has phase-separated microdomains that are macroscopically aligned in parallel, perpendicular, transverse or a combination thereof. Also described herein is a process for producing a polymeric extrudate for use as a dilatation balloon. The process comprises extruding a multiblock copolymer mixture or composition to form an extrudate.
    Type: Application
    Filed: August 18, 2004
    Publication date: May 12, 2005
    Inventors: Ashish Varma, Kimberly Chaffin, Frank Bates, Marc Hillmyer, Lisa Lim, Tamotsu Harada
  • Patent number: 6881516
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a planar bottom, an open top to receive the cover, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: April 19, 2005
    Assignee: Medtronic, Inc.
    Inventors: Paul B. Aamodt, Franise D. Bartley, Steve M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Kimberly A. Chaffin
  • Publication number: 20040062985
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a preferably planar, major bottom portion, an open top to receive the cover opposing the bottom portion, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device. The cover and the shallow case being substantially hermetically sealed by a laser weld technique and an insulator member disposed within the case to provide a barrier to incident laser radiation so that during welding radiation does not impinge upon radiation sensitive component(s) disposed within the case.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventors: Paul B. Aamodt, Franise D. Bartley, Steve M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Jason T. Papenfuss, William J. Farrell, Kimberly A. Chaffin
  • Publication number: 20040064163
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a major bottom portion, an open top to receive the cover; and a plurality of sides being radiused at intersections with each other and with the major bottom portion to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventors: Paul B. Aamodt, Franise D. Bartley, Steve M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Jason T. Papenfuss, William J. Farrell, Kimberly A. Chaffin
  • Publication number: 20040062986
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a planar bottom, an open top to receive the cover, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventors: Paul B. Aamodt, Franise D. Bartley, Steve M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Kimberly A. Chaffin
  • Publication number: 20040062852
    Abstract: A method for coating a medical device with a drug is provided. Energy, preferably thermal energy, is applied to a crystalline deposit of a drug on the surface of a medical device to increase the molecular mobility and form a conformable drug coating with a low density of micro-cracks and other mechanical defects that can degrade the coating toughness and effective adhesion to the device surface. In a preferred embodiment, solution evaporation methods are used to deposit a crystalline coating of an anti-inflammatory steroid on a medical electrode. Heat applied at a controlled temperature, for a predetermined amount of time, induces a solid-state phase change of the drug coating providing a smooth, uniform, well-attached, conformable coating to form a layer that will elute from the electrode over time when implanted in a patient's body.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Applicant: Medtronic, Inc.
    Inventors: Peter T. Schroeder, Kimberly A. Chaffin
  • Publication number: 20040024081
    Abstract: Orthopedic compositions are provided that include a homogeneous mixture of a biocompatible polymer and a bioactive particulate ceramic wherein the ceramic has an average particle size of not more than 500 nm are provided. The compositions may be used to form bone cement or various spinal implants, including spinal spacers, interbody fusion cages, bone plates and bone screws. Methods for stabilizing a spine, for correcting a bone defect, and for promoting fusion of adjacent vertebrae are also provided.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 5, 2004
    Inventors: Hai H. Trieu, Kimberly A. Chaffin