ENERGY RELIEF CONTROL IN A MECHANICAL VENTILATOR
First Claim
1. A mechanical ventilator for treatment of breathing disorders, comprising a controllable pressure and breathing gas flow generator, sensor input for receiving at least one sensor signal indicative of breathing gas pressure and/or flow, wherein the ventilator is arranged to determine the energy of breathing by measuring current and voltage supplied to the generator.
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Accused Products
Abstract
The present invention relates to a solution for controlling the pressure/flow of breathing gas to a mechanical ventilator (4) by using an energy of breathing analysis and further to provide a pressure relief during exhalation and a trigger determination when to start the pressure relief using energy content of breathing in analysis for determining a pressure curve form during at least a portion of the expiration phase.
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Citations
9 Claims
- 1. A mechanical ventilator for treatment of breathing disorders, comprising a controllable pressure and breathing gas flow generator, sensor input for receiving at least one sensor signal indicative of breathing gas pressure and/or flow, wherein the ventilator is arranged to determine the energy of breathing by measuring current and voltage supplied to the generator.
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7. A method of increasing the comfort for a patient using a mechanical ventilator, comprising the steps of:
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measuring a plurality of parameters during a inspiration phase of a breathing cycle; determining a trigger point between the inspiration phase and a subsequent expiration phase; determining a curve form of a pressure signal using an energy of breathing analysis; and controlling the pressure of the breathing air from the ventilator using the determined curve form signal during at least a portion of the expiration phase.
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- 8. A mechanical ventilator system comprising a mechanical ventilator, a breathing mask, a breathing air conduit between the mechanical ventilator and mask, and sensors for measuring data indicative of breathing condition and mechanical ventilator condition for use in a controller for controlling the supply of pressure and/or flow of breathing gas from the mechanical ventilator, wherein the ventilator is arranged to determine the energy of breathing by measuring current and voltage supplied to a fan in the ventilator providing pressure and flow of breathable gas.
Specification