Patents by Inventor Devin Karns

Devin Karns 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: 9622828
    Abstract: An introducer and method provides a surgical tool with a pathway through tissue to a surgical site, wherein the surgical tool includes at least one surgical instrument. The introducer comprises a flexible sheath having a distal portion including a distal end and is arranged for receiving the surgical tool. A tissue separation tip at the distal portion of the sheath advances the sheath into the tissue towards the surgical site. The tissue separation tip is arranged to form a tissue gap and provide the at least one surgical instrument access to the tissue gap for performing a medical procedure consonant with the formation of the tissue gap or the performance of work at the surgical site.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: April 18, 2017
    Assignee: SPI Surgical, Inc.
    Inventors: Diana C. W. Friedman, Blake Hannaford, Devin Karns, Aylin Z. Kim, Louis Kim, Thomas S. Lendvay, Kristen S. Moe, James S. Pridgeon, Jacob Rosen, Laligam Sekhar
  • Publication number: 20140114338
    Abstract: An introducer and method provides a surgical tool with a pathway through tissue to a surgical site, wherein the surgical tool includes at least one surgical instrument. The introducer comprises a flexible sheath having a distal portion including a distal end and is arranged for receiving the surgical tool. A tissue separation tip at the distal portion of the sheath advances the sheath into the tissue towards the surgical site. The tissue separation tip is arranged to form a tissue gap and provide the at least one surgical instrument access to the tissue gap for performing a medical procedure consonant with the formation of the tissue gap or the performance of work at the surgical site.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 24, 2014
    Applicant: SPI SURGICAL, INC.
    Inventors: Diana C.W. Friedman, Blake Hannaford, Devin Karns, Aylin Z. Kim, Louis Kim, Thomas S. Lendvay, Kristen S. Moe, James S. Pridgeon, Jacob Rosen, Laligam Sekhar
  • Patent number: 8702925
    Abstract: A system for measuring hydrogen (H2) and oxygen (O2) including a sample system, a signal processing and system control device, at least one polarograph device and a computing device equipped with software for environmental and biological data analysis incorporating both user-defined and environmental data acquired by the signal processing and system control device. The system measures gas level or exchange (production and/or consumption) in the field or laboratory. In some embodiments, the system uses two Clark-type polarograph devices oppositely polarized with gas-specific polarographic circuits, wherein one polarograph device measures H2 gas and the other measures O2 gas. In some embodiments, the sample system includes an environmentally-controlled sample housing for accepting the polarograph devices and holding a test sample in a reservoir. The system measures H2 or O2 exchange in microbial samples, including microbial phototrophs which couple light harvesting to H2 and/or O2 exchange.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Colorado School of Mines
    Inventors: Devin Karns, Jonathan Meuser, Matthew Posewitz, Edward Dempsey
  • Patent number: 8617197
    Abstract: An introducer and method provides a surgical tool with a pathway through tissue to a surgical site, wherein the surgical tool includes at least one surgical instrument. The introducer comprises a flexible sheath having a distal portion including a distal end and is arranged for receiving the surgical tool. A tissue separation tip at the distal portion of the sheath advances the sheath into the tissue towards the surgical site. The tissue separation tip is arranged to form a tissue gap and provide the at least one surgical instrument access to the tissue gap for performing a medical procedure consonant with the formation of the tissue gap or the performance of work at the surgical site.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: December 31, 2013
    Assignee: SPI Surgical, Inc.
    Inventors: Diana C. W. Friedman, Blake Hannaford, Devin Karns, Aylin Z. Kim, Louis Kim, Thomas S. Lendvay, Kristen S. Moe, James S. Pridgeon, Jacob Rosen, Laligam Sekhar
  • Publication number: 20120085642
    Abstract: A system for measuring hydrogen (H2) and oxygen (O2) including a sample system, a signal processing and system control device, at least one polarograph device and a computing device equipped with software for environmental and biological data analysis incorporating both user-defined and environmental data acquired by the signal processing and system control device. The system measures gas level or exchange (production and/or consumption) in the field or laboratory. In some embodiments, the system uses two Clark-type polarograph devices oppositely polarized with gas-specific polarographic circuits, wherein one polarograph device measures H2 gas and the other measures O2 gas. In some embodiments, the sample system includes an environmentally-controlled sample housing for accepting the polarograph devices and holding a test sample in a reservoir. The system measures H2 or O2 exchange in microbial samples, including microbial phototrophs which couple light harvesting to H2 and/or O2 exchange.
    Type: Application
    Filed: May 16, 2011
    Publication date: April 12, 2012
    Applicant: COLORADO SCHOOL OF MINES
    Inventors: Devin Karns, Jonathan Meuser, Matthew Posewitz, Edward Dempsey
  • Publication number: 20110257672
    Abstract: An introducer and method provides a surgical tool with a pathway through tissue to a surgical site, wherein the surgical tool includes at least one surgical instrument. The introducer comprises a flexible sheath having a distal portion including a distal end and is arranged for receiving the surgical tool. A tissue separation tip at the distal portion of the sheath advances the sheath into the tissue towards the surgical site. The tissue separation tip is arranged to form a tissue gap and provide the at least one surgical instrument access to the tissue gap for performing a medical procedure consonant with the formation of the tissue gap or the performance of work at the surgical site.
    Type: Application
    Filed: March 18, 2011
    Publication date: October 20, 2011
    Applicant: SPI SURGICAL, INC.
    Inventors: Diana C.W. FRIEDMAN, Blake Hannaford, Devin Karns, Aylin Z. Kim, Louis Kim, Thomas S. Lendvay, Kristen S. Moe, James S. Pridgeon, Jacob Rosen, Laligam Sekhar