Patents by Inventor Denham LANSDELL

Denham LANSDELL 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: 11706857
    Abstract: A surgical light system comprises several light sources configured to respectively generate a specific light field on at least one surgical site to generate a surgical light field, and a controller configured to control the several light sources such as to provide and adjust a brightness of the specific light fields. The surgical light field is divided into several adjacent sections, the several light sources are configured such that the sections are respectively covered by at least one of the specific light fields in order to have a resulting brightness, wherein the size of the at least one specific light field) correspond to the size of the covered section, and the controller is configured to control the light sources such that the resulting brightness of the sections is adjustable to a specific brightness.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: July 18, 2023
    Assignee: Trumpf Medizin Systeme GmbH + Co. KG
    Inventors: Frank Oelgarth, Denham Lansdell
  • Publication number: 20210307145
    Abstract: A surgical light system comprises several light sources configured to respectively generate a specific light field on at least one surgical site to generate a surgical light field, and a controller configured to control the several light sources such as to provide and adjust a brightness of the specific light fields. The surgical light field is divided into several adjacent sections, the several light sources are configured such that the sections are respectively covered by at least one of the specific light fields in order to have a resulting brightness, wherein the size of the at least one specific light field) correspond to the size of the covered section, and the controller is configured to control the light sources such that the resulting brightness of the sections is adjustable to a specific brightness.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Inventors: Frank OELGARTH, Denham LANSDELL
  • Publication number: 20190125578
    Abstract: An underbody warming system may include a skin contacting surface configured to be positioned on the skin of a user. A plurality of thermoelectric devices may be provided. A first thermoelectric device of the plurality of thermoelectric devices may have a first temperature to create a first temperature gradient between the skin and the first thermoelectric device. A second thermoelectric device of the plurality of thermoelectric devices may have a second temperature different from the first temperature to create a second temperature gradient between the skin and the thermoelectric device. A first flow path may be configured to allow heat to flow between the skin and the first thermoelectric device. A second flow path may be configured to allow heat to flow between the skin and the second thermoelectric device.
    Type: Application
    Filed: October 23, 2018
    Publication date: May 2, 2019
    Inventors: Michael S. HOOD, Denham LANSDELL, Robert J. LAWRENCE, Charles A. LACHENBRUCH