Patents by Inventor Pieter M. J. Mulier

Pieter M. J. Mulier 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).

  • Cardiac pacemaker
    Patent number: 4120307
    Abstract: Apparatus for indicating end of battery life in a cardiac pacemaker. A battery voltage monitoring circuit provides an indication of battery voltage drop below a predetermined level. A counter circuit and decode logic respond to the voltage drop indication to block a portion of a predetermined number of the generated pacing pulses from the heart to induce a benign arrhythmia in the heart thereby indicating end of battery life. In another embodiment a plurality of voltage sensors indicate progressive decreases in battery voltage and are connected with decode logic to block an increasing number of pacing pulses to indicate worsening battery condition.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: October 17, 1978
    Assignee: Medtronic, Inc.
    Inventors: Thomas L. Jirak, Pieter M. J. Mulier
  • Coupling assembly for implantable electromedical devices
    Patent number: 4010760
    Abstract: A body implantable electromedical device such as a cardiac pacemaker in which the stimulating signal generator module is detachably coupled to at least one of the power source modules and the leads, coupling being provided by assemblies which are body fluid corrosion resistant and inhibit current leakage between units of the assembly at different electrical potentials.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: March 8, 1977
    Assignee: Medtronic, Inc.
    Inventors: Robert E. Kraska, Pieter M. J. Mulier