US 12,465,716 B2
Ventilator
Sunil Nanda, Bangalore (IN); and Pankaj Kumar Porwal, Udaipur (IN)
Filed by Sunil Nanda, Bangalore (IN); and Pankaj Kumar Porwal, Udaipur (IN)
Filed on Dec. 21, 2021, as Appl. No. 17/557,752.
Claims priority of application No. 202141029551 (IN), filed on Jul. 1, 2021.
Prior Publication US 2023/0001126 A1, Jan. 5, 2023
Int. Cl. A61M 16/20 (2006.01); A61M 16/00 (2006.01)
CPC A61M 16/204 (2014.02) [A61M 16/0003 (2014.02); A61M 16/0078 (2013.01); A61M 2016/0027 (2013.01); A61M 2205/52 (2013.01); A61M 2205/70 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A ventilator, comprising:
a breathing system comprising a bag valve;
a mechanical system coupled to the breathing system and configured to compress the bag valve; and
a control system coupled to the breathing system and the mechanical system, and comprising:
a plurality of pressure sensors configured to record pressure values based on flow of a gaseous inhalant through the breathing system;
a memory configured to store a look-up table, wherein the look-up table includes;
a plurality of compression values corresponding to a plurality of values of a plurality of parameters, and
a plurality of first integral Qs corresponding to the plurality of values; and
processing circuitry configured to:
receive a set of values for the plurality of parameters;
identify a compression value from the plurality of compression values in the look-up table based on the received set of values;
cause the mechanical system to compress the bag valve in accordance with the identified compression value to deliver a desired volume of the gaseous inhalant to a patient through the breathing system within a time-interval, wherein the compression of the bag valve causes the gaseous inhalant to flow through the breathing system;
determine a second integral Q, corresponding to an actual volume of the gaseous inhalant delivered to the patient, based on the pressure values recorded by the plurality of pressure sensors;
determine a deviation of the actual volume of the gaseous inhalant from the desired volume of the gaseous inhalant based on:
a first integral Q, of the plurality of first integral Qs, corresponding to the desired volume of the gaseous inhalant, and
the determined second integral Q; and
iteratively modify the compression value of the bag valve based on the determined deviation, wherein the compression value is iteratively modified until the actual volume of the gaseous inhalant delivered to the patient matches the desired volume of the gaseous inhalant.