Patents by Inventor Roger E. Bremer

Roger E. Bremer 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: 6366795
    Abstract: An electrolyte (70) for use in a single-use biomedical electrode assembly (A, B, C, D) designed for receiving body-generated electrical signals at a patient's skin surface includes: Component Range (%) Skin penetration agent 10-25  Thickener 0-10 Alkali metal or alkaline earth 1-13 metal chloride Alkali metal or alkali earth 1-13 metal nitrate Surfactant 0.001-5    Soluble silver salt, as silver   0-0.01 Buffer 0-10 Water Q.S. The skin penetration agent improves penetration of the outer, dead skin layers by the electrolyte, thereby improving pickup of minute electrical signals generated within the patient's body. A preferred skin penetration agent includes sodium 2-pyrrolidone-5 carboxylate at a concentration of 15-20% by weight of the electrolyte composition.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: April 2, 2002
    Assignee: Biosignal Partners
    Inventors: Roger E. Bremer, Daniel T. Pogany, John M. Questel
  • Patent number: 4693711
    Abstract: To separate drugs within a chamber (66) formed beneath a dome-like housing (24) from another biomedically active substance, the chamber (66) is subdivided into two chamber portions (166, 266) by enclosing, within said chamber, a plastic bag (101) or by stretching a membrane (102) thereacross. The plastic bag, or the membrane, respectively, is ruptured upon depression of a terminal element (34) located at the apex of the dome of the housing. The subdivision of the chamber into two chamber portions prevents intermixing of the biologically active substances during storage. One of the chamber portions may retain liquids which are suitable in the article, and preferably are separated from another one of the liquids, such as a surfactant, and thus permits a wide choice, of, respectively, biologically active and other substances. Unintended leakage of the substances through a microporous membrane (76) closing off the housing is prevented by applying a cover strip across the membrane.
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: September 15, 1987
    Inventors: Roger E. Bremer, Charles Anthony, Jr., Raymond M. Chappel
  • Patent number: 4526176
    Abstract: To separate electrolyte (70) within a chamber (66) formed beneath a dome-like housing (24) from a signal transmission connector (34) and thus prevent corrosion of the terminal portion (38, 40) exposed to the interior of the chamber by the electrolyte, the interior of the chamber (66) is subdivided into two chambers (166, 266) by enclosing within said chamber a plastic bag (101) or stretching a membrane (102) thereacross, the subdividing means (101, 102) being ruptured upon depression of the contact terminal (34) of the housing; the electrolyte is retained solely within the chamber (266, 266a) separate from the interior portion (38, 40) of the terminal so that the corrosive influence of the electrolyte is prevented from attacking the metal of the terminal prior to use of the electrode, and during storage.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: July 2, 1985
    Assignee: Frantz Medical Development Ltd.
    Inventors: Roger E. Bremer, Charles Anthony, Jr., Raymond M. Chappel
  • Patent number: 4215696
    Abstract: A disposable biomedical electrode which includes a vaulted dome-like electrolyte-containing chamber or cavity bridged at its open bottom by a highly flexible and conformable microporous membrane, the latter being covered with an adhesively-secured protective film the film being strippable preparatory to adhesively securing the electrode to a body surface. The electrode material and shape are such that the vaulted housing is physically distortable upon downward pressure applied thereto, thereby to force the electrolyte to diffuse through the microporous membrane into positive and low-electrical-resistance contact with the skin surface of a subject.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: August 5, 1980
    Assignee: Graphic Controls Corporation
    Inventors: Roger E. Bremer, Richard D. Falb