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Waveform display for medical ventilator

  • US 5,669,379 A
  • Filed: 03/29/1996
  • Issued: 09/23/1997
  • Est. Priority Date: 03/29/1996
  • Status: Expired due to Term
First Claim
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1. A system for controlling a waveform display of a parameter of a breathing gas delivered from a medical ventilator to a patient through a conduit, said system comprising an input device to enable a user to send a signal to the ventilator to establish a desired parameter in the gas delivered by the ventilator to the patient, a sensor for sensing in the gas delivered to the patient the desired parameter established by the user with said input device, said sensor providing a signal representative of such sensed parameter, a display for displaying the sensed parameter in the shape of a waveform, said display including an erase bar that erases old data and enters new data to modify the waveform as said erase bar moves across said display, and a processor to receive said signal from said input device to modify the sweep rate of the said erase bar in response to the desired parameter established by the user.

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