Devin A Karns

US Patent:

20110257672, Oct 20, 2011

Filed:

Mar 18, 2011

Appl. No.:

13/051888

Inventors:

Diana C.W. FRIEDMAN - Seattle WA, US
Blake Hannaford - Seattle WA, US
Devin Karns - Seattle WA, US
Aylin Z. Kim - Seattle WA, US
Louis Kim - Seattle WA, US
Thomas S. Lendvay - Seattle WA, US
Kristen S. Moe - Seattle WA, US
James S. Pridgeon - Seattle WA, US
Jacob Rosen - Santa Cruz CA, US
Laligam Sekhar - Seattle WA, US

Assignee:

SPI SURGICAL, INC. - Seattle WA

International Classification:

A61B 17/00

US Classification:

606190

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.

US Patent:

20120085642, Apr 12, 2012

Filed:

May 16, 2011

Appl. No.:

13/108960

Inventors:

Devin Karns - Seattle WA, US
Jonathan Meuser - Golden CO, US
Matthew Posewitz - Golden CO, US
Edward Dempsey - Littleton CO, US

Assignee:

COLORADO SCHOOL OF MINES - Golden CO

International Classification:

G01N 33/50

US Classification:

20440301

Abstract:

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.

US Patent:

20140114338, Apr 24, 2014

Filed:

Dec 20, 2013

Appl. No.:

14/137181

Inventors:

- Seattle WA, US
Blake Hannaford - Seattle WA, US
Devin Karns - Seattle WA, US
Aylin Z. Kim - Seattle WA, US
Louis Kim - Seattle WA, US
Thomas S. Lendvay - Seattle WA, US
Kristen S. Moe - Seattle WA, US
James S. Pridgeon - Seattle WA, US
Jacob Rosen - Santa Cruz CA, US
Laligam Sekhar - Seattle WA, US

Assignee:

SPI SURGICAL, INC. - Seattle WA

International Classification:

A61M 29/00

US Classification:

606190

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.