Patents by Inventor Thomas Pohida

Thomas Pohida 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).

  • Publication number: 20060172278
    Abstract: A device for performing target activated transfer that includes a mounting surface for mounting a tissue sample; and a light source positioned to substantially uniformly irradiate both stained and unstained regions of the tissue sample with light energy that activates the reagent to selectively adhere the stained regions to a transfer surface. Also described is an automated system for transferring tissue from a tissue sample to a transfer substrate. The system includes means for holding a tissue section that includes targets specifically stained with an absorptive stain thereby resulting in a stained tissue surface, and a flexible transfer film that includes a lower thermoplastic layer in sufficient thermal contact with the stained tissue surface; an irradiating assembly configured to provide a predetermined uniform light dose to the entire tissue section; and means for applying a constant pressure to the transfer film during irradiation.
    Type: Application
    Filed: August 12, 2005
    Publication date: August 3, 2006
    Inventors: Robert Bonner, Thomas Pohida, Michael Emmert-Buck, Michael Tangrea, Rodrigo Chuaqui
  • Publication number: 20050074900
    Abstract: Described are microfluidic devices for, preferably, high-throughput, multi-analyte, affinity capture and detection of affinity-bindable analytes in biological fluids. Particularly, the devices can be used for immunoassays of biological fluids using multiple antibodies for capture and detection of multiple analytes, including proteins. The devices can be used for the simultaneous isolation and quantization of multiple proteins from microliter samples of biological fluids. Also described are methods for detecting and, optionally, quantifying, affinity-bindable analytes in biological fluids using these devices.
    Type: Application
    Filed: July 2, 2004
    Publication date: April 7, 2005
    Inventors: Nicole Morgan, Michael Gaitan, Laurie Locascio, Terry Phillips, Thomas Pohida, Paul Smith
  • Patent number: 6783734
    Abstract: A tissue sample is conventionally visualized in a microscope. A selectively activated convex surface is provided, preferably at the distal end of a rod. This selectively activated convex surface when activated, typically with a laser through an optic light path in the microscope, provides the activated region with adhesive properties. At least one portion of the tissue sample which is to be extracted is identified. This identified portion is contacted with a portion of the selectively activated convex surface on the end of the rod. When the convex surface is activated, typically by exposure to laser light in the footprint of the desired sample, an adhesive transfer surface on the selectively activated convex surface is provided which adheres to the desired cells in the footprint of the desired sample. Thereafter, the adhesive transfer surface is separated from the remainder of the tissue sample while maintaining adhesion with the desired cells. Thus the desired portion of the tissue sample is extracted.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: August 31, 2004
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Seth R. Goldstein, Robert F. Bonner, Paul D. Smith, John Peterson, Thomas Pohida
  • Patent number: 6743601
    Abstract: An apparatus and process for the micro juxtaposition is set forth where a selectively activatable surface is maintained spaced apart from the tissue sample and juxtaposed to the tissue sample by activation. In the typical case, activation occurs by laser radiation with the material of the activatable surface thermally expanding and bringing about the desired micro juxtaposition. The disclosed micro juxtapositioning can cause locally and microscopically pressure on tissue sample, insertion to the tissue sample, or contact of an activated or prepared surface to the tissue sample.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: June 1, 2004
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Robert F. Bonner, Seth R Goldstein, Paul D. Smith, Thomas Pohida
  • Patent number: 6720191
    Abstract: A method and apparatus of gathering by LCM identified cellular material from randorn locations on a tissue sample to designated locations on a transporting substrate enables convenient further processing. A transporting substrate has an identified mapped location for receiving identified cellular material. At least a segment of a selectively activatable coating is placed on the side of the transporting substrate in apposition to the tissue sample at the mapped location. The transporting substrate and sample are relatively moved to place the selectively activated coating at the mapped location in apposition to identified cellular material of the tissue sample which is to be extracted. Thereafter, the selectively activatable coating is activated and impressed or impressed and activated to form an adhesive region on the transporting substrate for adhering to the identified cellular material.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: April 13, 2004
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Seth R. Goldstein, Robert F. Bonner, Paul D. Smith, John Peterson, Thomas Pohida
  • Patent number: 6100051
    Abstract: A process of microdissection where a tissue sample is conventionally visualized in a microscope. A selectively activatable convex surface is provided, preferably on the periphery at the distal end of a rod. This selectively activatable convex surface when locally activated, typically with a laser through an optic light path in the microscope, provides the activated region with adhesive properties. The tissue sample has at least one portion, which is to be extracted is identified. This identified portion is contacted with a portion of the selectively activatable convex surface on the periphery of the rod. When the convex surface is locally activated, typically by exposure to laser light in the footprint of the desired portion, an adhesive transfer surface on the selectively activatable convex surface is activated which adheres to the desired cells in the footprint of the desired portion.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: August 8, 2000
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Seth R. Goldstein, Robert F. Bonner, Paul D. Smith, John Peterson, Thomas Pohida