Patents by Inventor Daren L. Stewart

Daren L. Stewart 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: 5875275
    Abstract: A fiber optic radiation transmission system is provided in which an optical fiber and a radiation source are connected to establish optical communication therebetween. Additionally, a connecting system is provided for connecting an optical fiber and a radiation source such that optical communication is established therebetween. The systems include a connector which carries the optical fiber therein. The connector is extendable within the system toward the radiation source to bring the optical fiber into optical communication with the radiation source. More particularly, the systems are configured in such a way that when the connector is extended sufficiently within the system, it seats the optical fiber relative to the radiation source under bias, thereby establishing a reliable optical connection. Once the optical connection is thus established, the connector engages a connection port associated with the radiation source to secure the system in a fully connected configuration appropriate for use.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: February 23, 1999
    Assignee: Indigo Medical, Inc.
    Inventors: William James Evans, Thomas Henning, Kelly Cox, Victor C. Esch, Yefim Gelfond, Stephanos Papademetriou, Daren L. Stewart
  • Patent number: 5848209
    Abstract: A fiber optic radiation transmission system is provided in which an optical fiber and a radiation source are connected to establish optical communication therebetween. Additionally, a connecting system is provided for connecting an optical fiber and a radiation source such that optical communication is established therebetween. The systems include a connector which carries the optical fiber therein. The connector is extendable within the system toward the radiation source to bring the optical fiber into optical communication with the radiation source. More particularly, the systems are configured in such a way that when the connector is extended sufficiently within the system, it seats the optical fiber relative to the radiation source under bias, thereby establishing a reliable optical connection. Once the optical connection is thus established, the connector engages a connection port associated with the radiation source to secure the system in a fully connected configuration appropriate for use.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: December 8, 1998
    Assignee: Indigo Medical Inc.
    Inventors: William James Evans, Thomas Henning, Kelly Cox, Victor C. Esch, Yefim Gelfond, Stephanos Papademetriou, Daren L. Stewart
  • Patent number: 5802229
    Abstract: A fiber optic radiation transmission system is provided in which an optical fiber and a radiation source are connected to establish optical communication therebetween. Additionally, a connecting system is provided for connecting an optical fiber and a radiation source such that optical communication is established therebetween. The systems include a connector which carries the optical fiber therein. The connector is extendable within the system toward the radiation source to bring the optical fiber into optical communication with the radiation source. More particularly, the systems are configured in such a way that when the connector is extended sufficiently within the system, it seats the optical fiber relative to the radiation source under bias, thereby establishing a reliable optical connection. Once the optical connection is thus established, the connector engages a connection port associated with the radiation source to secure the system in a fully connected configuration appropriate for use.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: September 1, 1998
    Assignee: Indigo, Medical, Inc.
    Inventors: William James Evans, Thomas Henning, Kelly Cox, Victor C. Esch, Yefim Gelfond, Stephanos Papademetriou, Daren L. Stewart
  • Patent number: 5409483
    Abstract: A surgical probe for use in a hollow vessel or other region of the body which comprises a multi-lumen catheter having a transparent, non-compliant balloon coupled to the distal end, such that the balloon has a known shape when inflated. A direct visualization scope is provided in a first lumen of the multi-lumen catheter providing direct visualization into the hollow vessel through the non-compliant balloon. An adapter is coupled to a second lumen of the multi-lumen catheter near the proximal end to supply a transparent fluid through the second lumen to inflate the balloon to the predefined shape. In this aspect, the balloon operates to clear the scope tip by pressing tissue on the walls of the hollow vessel out of the way of the end of the scope. This provides the user of the device a consistent clear view of the tissue at the tip of the scope. A fiber optic is provided in a third lumen of the multi-lumen catheter to deliver light energy to the hollow vessel through the non-compliant balloon.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: April 25, 1995
    Assignee: Jeffrey H. Reese
    Inventors: Peter Campbell, Jeffrey H. Reese, Daren L. Stewart
  • Patent number: 5356391
    Abstract: A gastrostomy tube having a collapsible, internal retention flange is disclosed, and the gastrostomy tube is inserted into a patient's stomach by a percutaneous endoscopic or other suitable technique. The internal retention flange comprises a dome shape that will not only reduce patient risk during the placement procedure, but will also allow for a more consistent and less traumatic external removal procedure.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: October 18, 1994
    Assignee: Medical Innovations Corp.
    Inventor: Daren L. Stewart