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公开(公告)号：US11602609B2
公开(公告)日：2023-03-14
申请号：US16252520
申请日：2019-01-18
摘要： A ventilator includes electronic control circuitry configured to control a supply of breathing gas for a plurality of respiratory cycles, measure a volume received by the patient in each of the plurality of respiratory cycles, and determine, for each cycle of the plurality of respiratory cycles, a cycle score corresponding to a deviation between the volume of the cycle and a predetermined target volume. The determined cycle score can be selected from a predetermined number of cycle scores that span positive and negative numbers based on the deviation. A pressure step value can be determined based on a plurality of cycle scores corresponding to the plurality of respiratory cycles, and a current pressure of the breathing gas is adjusted by an amount corresponding to the determined pressure step value. The pressure step value may be generated by dividing a sum of the plurality of cycle scores by a sample size.
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公开(公告)号：US10857322B2
公开(公告)日：2020-12-08
申请号：US15815607
申请日：2017-11-16
摘要： A method for controlling mechanical lung ventilation is described. The method may include intermittently switching the airway pressure of the patient from a substantially constant high baseline pressure level to a substantially constant low baseline pressure and vice-versa such that the patient is able to breathe spontaneously in both high and low baseline pressure levels; detecting an inspiration effort by the patient inside a trigger time window that immediately precedes a switching event of the intermittently switching the airway pressure; maintaining a baseline pressure at the level in which the inspiration effort was detected so that the patient can complete the inspiration-exhalation cycle; and switching the baseline pressure level after a delay time.
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公开(公告)号：US12102770B2
公开(公告)日：2024-10-01
申请号：US18183103
申请日：2023-03-13
CPC分类号： A61M16/205 , A61M16/0003 , A61M16/024 , A61M2016/0027 , A61M2016/003 , A61M16/0833 , A61M2205/502 , A61M2205/52
摘要： A ventilator includes electronic control circuitry configured to control a supply of breathing gas for a plurality of respiratory cycles, measure a volume received by the patient in each of the plurality of respiratory cycles, and determine, for each cycle of the plurality of respiratory cycles, a cycle score corresponding to a deviation between the volume of the cycle and a predetermined target volume. The determined cycle score can be selected from a predetermined number of cycle scores that span positive and negative numbers based on the deviation. A pressure step value can be determined based on a plurality of cycle scores corresponding to the plurality of respiratory cycles, and a current pressure of the breathing gas is adjusted by an amount corresponding to the determined pressure step value. The pressure step value may be generated by dividing a sum of the plurality of cycle scores by a sample size.
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公开(公告)号：US12042604B2
公开(公告)日：2024-07-23
申请号：US17096840
申请日：2020-11-12
CPC分类号： A61M16/205 , A61M16/024 , A61M16/204 , A61M2016/0027 , A61M2016/0039 , A61M16/0833 , A61M2205/3553 , A61M2205/3561 , A61M2205/3584 , A61M2205/3592 , A61M2205/50
摘要： A method for controlling mechanical lung ventilation is described. The method may include intermittently switching the airway pressure of a patient from a first baseline pressure level to a second baseline pressure and vice-versa such that the patient is able to breathe spontaneously in both first and second baseline pressure levels; detecting an inspiration effort by the patient within a predetermined period of time before a switching event of the intermittently switching the airway pressure; and controlling, responsive to detecting a breathing effort, a flow control valve and an exhalation valve to adjust a length of the first period of time according to a delay time so a patient inspiration-exhalation cycle is completed prior to the switching event.
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