Spi Surgical, Inc.

Trustees of the Colorado School of Mines

Devin Karns

Blake Hannaford

Thomas Sean Lendvay

Kristen S Moe

Laligam Sekhar

Aylin Kim

Louis Kim

Jacob Rosen

James S Pridgeon

Diana C W Friedman

Matthew C Posewitz

Jonathan E Meuser

Edward Dempsey

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.

Introducer device

A system for measuring hydrogen (H) and oxygen (O) 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 Hgas and the other measures Ogas. 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 Hor Oexchange in microbial samples, including microbial phototrophs which couple light harvesting to Hand/or Oexchange.

Polarographic instrument system for oxygen and hydrogen measurement

Growing community of inventors

Seattle, WA, United States of America

Devin Karns