Patents by Inventor Douglas G. Evans

Douglas G. Evans 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: 20120029653
    Abstract: An implant for deployment in select locations or select tissue for regeneration of tissue is disclosed. The implant includes collagen and or other bio-resorbable materials, where the implant may also be used for therapy delivery.
    Type: Application
    Filed: November 16, 2010
    Publication date: February 2, 2012
    Inventors: Douglas G. Evans, Scott M. Goldman, Russell T. Kronengold
  • Patent number: 8097007
    Abstract: A system for supporting the urethra using an introducer needle, the ends of which are flattened and which have openings therethrough, a handle having a latch mechanism which engages the opening in the flattened portion of the first end of the introducer needle, an implant, and a connector joining the end of the implant to the flattened portion of one of the ends of the introducer needle. These components are used to draw the implant into position, either through vaginal or abdominal incisions, to form a U-shaped loop beneath the urethra. The ends of the implant are adjusted to provide proper support for the urethra. The implant can have slits that open under applied tensile force.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: January 17, 2012
    Assignee: C. R. Bard, Inc.
    Inventors: Douglas G. Evans, Ken Butcher, Michele Gandy Davis
  • Patent number: 7976528
    Abstract: A device suitable for removing material from a living being is provided, featuring an infusate pump, and an aspiration pump, both powered by a motor. The aspiration pump and infusate pump preferably feature a helical pumping mechanism, and operate at a high rate of rotation, thereby ensuring adequate pumping performance and flexibility. Additionally, a narrow crossing profile is maintained, ensuring that the device may reach more tortuous regions of the vasculature. In one embodiment, the system comprises a wire-guided mono-rail catheter with a working head mounted on a flexible portion of the catheter that can laterally displace away from the guide wire to facilitate thrombus removal. The working head may be operated to separate and move away from the guide wire to come within a closer proximity of the obstructive material to more effectively remove it from the vessel.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: July 12, 2011
    Assignee: The Spectranetics, Corp.
    Inventors: John E. Nash, Greg Walters, Dennis M. Sauro, Mark Eberhart, William T. Fisher, Douglas G. Evans
  • Publication number: 20110144767
    Abstract: An implant for deployment in select locations or select tissue for regeneration of tissue is disclosed. The implant includes collagen and or other bio-resorbable materials, where the implant may also be used for therapy delivery. Additionally, the implant may include, or have blended in, an additive, such as an osteoinductive factor, for example biocompatible ceramics and glass.
    Type: Application
    Filed: February 22, 2011
    Publication date: June 16, 2011
    Inventors: Douglas G. Evans, Scott M. Goldman, Russell T. Kronengold
  • Publication number: 20110046649
    Abstract: A system for repairing a vertebral disc defect, such as hernia or bulge, a full or partial tear in the annulus, or a weakened annulus wall as a result of an excision procedure. The system introduces a treatment device arranged to repair the defect, and may prevent the leakage of fluid from the nucleus. The components of the device may be resorbable materials, and may induce the ingrowth of cellular material into the components. The system may feature a locating device to ensure proper placement of the treatment device.
    Type: Application
    Filed: November 2, 2010
    Publication date: February 24, 2011
    Inventor: Douglas G. Evans
  • Patent number: 7892291
    Abstract: An implant for deployment in select locations or select tissue for regeneration of tissue is disclosed. The implant includes collagen and or other bio-resorbable materials, where the implant may also be used for therapy delivery. Additionally, the implant may include, or have blended in, an additive, such as an osteoinductive factor, for example biocompatible ceramics and glass.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: February 22, 2011
    Assignee: Kensey Nash BVF Technology, LLC
    Inventors: Douglas G Evans, Scott M. Goldman, Russell T. Kronengold
  • Patent number: 7887598
    Abstract: An implant for deployment in select locations or select tissue for regeneration of tissue is disclosed. The implant includes collagen and or other bio-resorbable materials, where the implant may also be used for therapy delivery. Additionally, the implant may be “matched” to provide the implant with similar physical and/or chemical properties as the host tissue.
    Type: Grant
    Filed: October 27, 2007
    Date of Patent: February 15, 2011
    Assignee: Kensey Nash BVF Technology, LLC
    Inventors: Douglas G Evans, Scott M. Goldman, Russell T. Kronengold
  • Patent number: 7833278
    Abstract: An implant for deployment in select locations or select tissue for regeneration of tissue is disclosed. The implant includes collagen and or other bio-resorbable materials, where the implant may also be used for therapy delivery.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: November 16, 2010
    Assignee: Kensey Nash BVF Technology, LLC
    Inventors: Douglas G Evans, Scott M. Goldman, Russell T. Kronengold
  • Patent number: 7824414
    Abstract: A system for repairing a vertebral disc defect, such as hernia or bulge, a full or partial tear in the annulus, or a weakened annulus wall as a result of an excision procedure. The system introduces a treatment device arranged to repair the defect, and may prevent the leakage of fluid from the nucleus. The components of the device may be resorbable materials, and may induce the ingrowth of cellular material into the components. The system may feature a locating device to ensure proper placement of the treatment device.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: November 2, 2010
    Assignee: Kensey Nash Corporation
    Inventor: Douglas G. Evans
  • Publication number: 20100228152
    Abstract: In an embodiment, the invention provides a catheter suitable for use in performing a procedure within a vessel, lumen or organ of a living having a distal end which is steerable, such as upon the application of compression. The catheter may be of the over the wire type, or alternatively may be a rapid exchange catheter. The catheter may provide for a rotating element which may be used to open a clogged vessel, or alternatively to provide information about adjacent tissues, such as may be generated by imaging or guiding arrangements using tissue detection systems known in the art, e.g., ultrasound, optical coherence reflectometry, etc. For rapid exchange catheters having a rotating element, there is provided an offset drive assembly to allow the rotary force to be directed from alongside the guidewire to a location coaxial to and over the guidewire.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 9, 2010
    Inventors: William T. FISHER, David E. Yaeger, John E. Nash, Douglas G. Evans
  • Publication number: 20100217290
    Abstract: A system and method of use for effecting the bypass or other anastomosis, connection, or port in a portion of a native blood vessel, duct, lumen or other tubular organ within the body of a living being. The system includes a connector assembly and a deployment instrument for carrying the device to the desired position within the vessel, duct, lumen or tubular organ. The system includes a piercer-dilator instrument to form an opening in the wall of the vessel, duct, lumen or tubular organ into which a connector assembly may be deployed by the deployment instrument. The connector assembly may be at least partially formed of a resorbable material and includes movable members for securing it to the tissue of the vessel, duct, lumen or tubular organ contiguous with the opening. Other components may be included in the device for expediting the procedure, with or without the use of sutures.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 26, 2010
    Inventors: John E. Nash, Douglas G. Evans, David M. Hoganson
  • Patent number: 7744588
    Abstract: An attachment tool to facilitate the attachment of one or more catheters or similar elongated instruments to a guide-wire or other elongated guide member, without requiring access to either end of said wire or member. The tool provides repeatable and reliable alignment of components to be attached, while being operated with a single hand. The catheter systems can be used for revascularization or treatment of arteries and lumens within the body, and the associated delivery of therapies therein and can include side attachable and over-the-wire components and/or low profile combination catheters to allow for flush and extraction of debris in small or tortuous anatomic pathways.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: June 29, 2010
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters, Douglas G. Evans, David Szabo, Michael Paris
  • Publication number: 20100145259
    Abstract: A device suitable for removing material from a living being is provided, featuring an infusate pump, and an aspiration pump, both powered by a motor. The aspiration pump and infusate pump preferably feature a helical pumping mechanism, and operate at a high rate of rotation, thereby ensuring adequate pumping performance and flexibility. Additionally, a narrow crossing profile is maintained, ensuring that the device may reach more tortuous regions of the vasculature. In one embodiment, the system comprises a wire-guided mono-rail catheter with a working head mounted on a flexible portion of the catheter that can laterally displace away from the guide wire to facilitate thrombus removal. The working head may be operated to separate and move away from the guide wire to come within a closer proximity of the obstructive material to more effectively remove it from the vessel.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 10, 2010
    Applicant: The Spectranetics Corporation
    Inventors: John E. Nash, Greg Walters, Dennis M. Sauro, Mark Eberhart, William T. Fisher, Douglas G. Evans
  • Patent number: 7713261
    Abstract: An attachment tool to facilitate the attachment of one or more catheters or similar elongated instruments to a guide-wire or other elongated guide member, without requiring access to either end of said wire or member. The tool provides repeatable and reliable alignment of components to be attached, while being operated with a single hand. The catheter systems can be used for revascularization or treatment of arteries and lumens within the body, and the associated delivery of therapies therein and can include side attachable and over-the-wire components and/or low profile combination catheters to allow for flush and extraction of debris in small or tortuous anatomic pathways.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 11, 2010
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters, Douglas G. Evans, David Szabo, Michael Paris
  • Publication number: 20100094196
    Abstract: The systems basically comprise a delivery system for accessing the targeted tissue within the living being and introduction of at least one agent at select locations in the into the myocardium and other select tissues. The delivery systems are arranged to access the tissues of the heart. One or more of the systems can be utilized during transluminal, transthoracic and direct surgical access procedures. Where appropriate, for example in the case of intraventricular access, portions of the system are steerable to properly orient the device. The instruments may pierce the heart tissue and create channels extending from the endocardium, the epicardium, or the cardiac vessels. When tissue penetration is utilized, the device may include a feature to control the depth of penetration. To minimize bleeding through the channels the device can dilate small initial punctures that later contract down after device removal.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 15, 2010
    Inventors: John E. Nash, Douglas G. Evans, David M. Hoganson
  • Patent number: 7695483
    Abstract: A system and method of use for effecting the bypass or other anastomosis, connection, or port in a portion of a native blood vessel, duct, lumen or other tubular organ within the body of a living being. The system includes a connector assembly and a deployment instrument for carrying the device to the desired position within the vessel, duct, lumen or tubular organ. The system includes a piercer-dilator instrument to form an opening in the wall of the vessel, duct, lumen or tubular organ into which a connector assembly may be deployed by the deployment instrument. The connector assembly may be at least partially formed of a resorbable material and includes movable members for securing it to the tissue of the vessel, duct, lumen or tubular organ contiguous with the opening. Other components may be included in the device for expediting the procedure, with or without the use of sutures.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: April 13, 2010
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Douglas G. Evans, David M. Hoganson
  • Patent number: 7674253
    Abstract: In an embodiment, the invention provides a catheter suitable for use in performing a procedure within a vessel, lumen or organ of a living having a distal end which is steerable, such as upon the application of compression. The catheter may be of the over the wire type, or alternatively may be a rapid exchange catheter. The catheter may provide for a rotating element which may be used to open a clogged vessel, or alternatively to provide information about adjacent tissues, such as may be generated by imaging or guiding arrangements using tissue detection systems known in the art, e.g., ultrasound, optical coherence reflectometry, etc. For rapid exchange catheters having a rotating element, there is provided an offset drive assembly to allow the rotary force to be directed from alongside the guidewire to a location coaxial to and over the guidewire.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: March 9, 2010
    Assignee: Kensey Nash Corporation
    Inventors: William T. Fisher, David E. Yaeger, John E. Nash, Douglas G. Evans
  • Patent number: 7666161
    Abstract: A device suitable for removing material from a living being is provided, featuring an infusate pump, and an aspiration pump, both powered by a motor. The aspiration pump and infusate pump preferably feature a helical pumping mechanism, and operate at a high rate of rotation, thereby ensuring adequate pumping performance and flexibility. Additionally, a narrow crossing profile is maintained, ensuring that the device may reach more tortuous regions of the vasculature. In one embodiment, the system comprises a wire-guided mono-rail catheter with a working head mounted on a flexible portion of the catheter that can laterally displace away from the guide wire to facilitate thrombus removal. The working head may be operated to separate and move away from the guide wire to come within a closer proximity of the obstructive material to more effectively remove it from the vessel.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: February 23, 2010
    Assignee: The Spectranetics Corporation
    Inventors: John E. Nash, Greg Walters, Dennis M. Sauro, Mark Eberhart, William T. Fisher, Douglas G. Evans
  • Publication number: 20090318752
    Abstract: An implant for repairing pelvic floor disorders, such as urinary incontinence or prolapse, by lifting the prolapsed tissue or organ into a more anatomically correct position is provided. The prosthesis is shaped with a central support section and one or more lateral anchoring sections or arms extending outwardly from the central section. The support section lifts the prolapsed organ to a more anatomically correct position, whereas the anchoring secton(s) are positioned through soft tissue away from the organ being supported to hold the implant in place by allowing tissue ingrowth into the anchoring sections. The implant may be formed of both synthetic and more natural materials.
    Type: Application
    Filed: March 15, 2007
    Publication date: December 24, 2009
    Applicant: C. R. Bard, Inc.
    Inventors: Douglas G. Evans, Walter Freitag
  • Patent number: 7594900
    Abstract: Delivery systems for accessing the targeted tissue within the living being and introduction of at least one agent at select locations into the tissues of the heart such as the myocardium and other select tissues. Where appropriate, portions of the system are steerable to properly orient the device. When tissue penetration is utilized, the device may include a feature to control the depth of penetration. removal. The system may utilize some form of mechanical action or application of energy (e.g. electrical, sonic, thermal, optical, pressurized fluid, radio frequency (RF), nuclear) in the process. The agent delivered to the tissue may include one or more of pharmaceuticals, biologically active agents, radiopaque materials, etc.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: September 29, 2009
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Douglas G. Evans, David M. Hoganson