Patents Assigned to Biotronics
  • Patent number: 4860172
    Abstract: Conventional omnidirectional lamp light is converted into a narrowly focused, highly intense beam with a power comparable to certain types of lasers. The lamp light is collected and focused with conventional means into an optical coupling cone which condenses the conventionally-focused beam to a very small diameter for launching into a fiber optic cable. An optical terminator at the end of the optical fiber retains collimation of the beam and a power density comparable to certain types of lasers, such as those used in medical applications.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: August 22, 1989
    Assignee: Biotronics Associates, Inc.
    Inventors: Kenneth J. Schlager, Stephen H. Gorski
  • Patent number: 4586514
    Abstract: A non-invasive clinical instrument provides for in vivo detection of a restriction in an artery. A microphone is applied to the body over the artery and generates a complex electrical signal which is processed to remove noise and amplified. A digital bandpass filter circuit includes a plurality of individual bandpass filters, each of which covers 1/3 of an octave and covers adjacent octaves to cover the complete spectrum between about 2 to 2,000 hertz. Switched-capacitor bandpass filters are used. Each three bandpass filters separated by one-third of an octave are connected such that setting the center bandpass filter automatically resets the two adjacent bandpass filters to cover a single octave in steps of one-third. The sensed signal which is an AC analog signal is transmitted by an analog low pass filter to block undesirably higher frequency components from the digital filters. Digital low-pass filters connect the analog low-pass filter to the bandpass filters.
    Type: Grant
    Filed: August 10, 1983
    Date of Patent: May 6, 1986
    Assignee: Biotronics Instruments
    Inventors: Kenneth J. Schlager, Jeffrey R. Melvin
  • Patent number: 4578168
    Abstract: A single wire electrode is supported at one end by a cylinder cap which has pins for guiding the electrode into an upwardly opening fusion chamber defined by a heavy metal cylinder. In a second embodiment, multiple secondary wire electrodes are spaced circumferentially about a central primary wire electrode. In a third embodiment, a laminate wire mesh electrode assembly is mounted within a rectangular cartridge fusion chamber.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: March 25, 1986
    Assignee: Biotronics
    Inventor: Gunter A. Hofmann
  • Patent number: 4561961
    Abstract: A glass slide has parallel tubular electrodes for performing electro cell fusion. Fluid may be pumped through the electrodes to dissipate heat to enhance the yield of viable hybrids. An alternate embodiment sandwiches a gasket and parallel tubular electrodes between glass slides to permit cell fusion in a closed sterile environment.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: December 31, 1985
    Assignee: Biotronics
    Inventor: Gunter A. Hofmann