Resources Contact Us Home
Heart pacemaker

Image Number 5 for United States Patent #5088491.

A cardiac pacemaker for implanting in a patient includes a device for applying stimulating pulses to the heart of the patient at a rate determined by a pacing parameter; a device for detecting a first physiological parameter which is correlated with physical exertion of the patient and producing a first output signal representative of the first physiological parameter; a circuitry device receiving the first output signal for varying the pacing parameter as a function of the first output signal received as an input variable; and the circuitry device being a closed-loop control device which receives first output signal from the device for detecting the first physiological parameter, for determining one of (a) the product of the heart rate and the stroke volume and (b) the product of the heart rate and a single variable representative of the stroke volume as the cardiac output, to correspond to changes in the first output signal which represents a standard for the current physical exertion of the patient, for varying the pacing parameter.

  Recently Added Patents
Antibodies to CCR2
Light-emitting element, light-emitting device, and electronic device
Moving picture decoding device and moving picture decoding method
Dynamic rebasing of persisted time information
Detection of procedural deficiency across multiple business applications
Generating a representation of an object of interest
Bitter taste receptors
  Randomly Featured Patents
Transistor formed using a dual metal process for gate and source/drain region
Image scanning apparatus and image scanning method
Metal hydroxy carbonate nanoparticle coated phosphor and method for preparing the same
Apparatus with programmable touch screen and method thereof
GaAs Field effect transistor with a non-volatile memory
Flash memory device and method for manufacturing the same
Portable electronics apparatus housing and chassis
Food slicer
Method and system for sootblowing optimization
High porosity fractures and methods of creating high porosity fractures