ADAPTIVE CYCLING FOR RESPIRATORY TREATMENT APPARATUS
First Claim
1. An automated processing method for adapting cycling of a respiratory treatment apparatus that controls a delivery of a synchronized respiratory treatment, the method comprising:
- controlling generation of inspiratory pressure and expiratory pressure over a first plurality of cycles with a processor, wherein the setting of the expiratory pressure is based on a first cycling criteria; and
controlling generation of inspiratory pressure and expiratory pressure over a second plurality of cycles subsequent to the first plurality of cycles with the processor, wherein the setting of the expiratory pressure is based on a second cycling criteria, the second cycling criteria being different from the first cycling criteria and being initiated for operation subsequent to the first plurality of cycles.
4 Assignments
0 Petitions
Accused Products
Abstract
A controller or processor (s) implements detection of respiratory related conditions that may serve as control logic to synchronize pressure treatment delivery with a patient'"'"'s respiratory cycle. Based on data derived from sensor signals associated with the respiratory treatment, a monitoring device, detector or respiratory treatment apparatus may evaluate flow measures from a flow sensor and distinguish flow attributable to the respiratory treatment apparatus and flow attributable to patient respiratory muscles. The determination may serve as a basis of synchronization criteria that controls pressure levels from a pressure treatment apparatus, such as by evaluating the determined patient generated flow or a relationship between total flow and apparatus flow. In some embodiments, data for the cycling conditions is determined in preliminary treatment cycles during which synchronized pressure changes are controlled according to other cycling criteria. The new cycling conditions are then automatically initiated for control of synchronization in subsequent cycles.
-
Citations
106 Claims
-
1. An automated processing method for adapting cycling of a respiratory treatment apparatus that controls a delivery of a synchronized respiratory treatment, the method comprising:
-
controlling generation of inspiratory pressure and expiratory pressure over a first plurality of cycles with a processor, wherein the setting of the expiratory pressure is based on a first cycling criteria; and controlling generation of inspiratory pressure and expiratory pressure over a second plurality of cycles subsequent to the first plurality of cycles with the processor, wherein the setting of the expiratory pressure is based on a second cycling criteria, the second cycling criteria being different from the first cycling criteria and being initiated for operation subsequent to the first plurality of cycles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A respiratory treatment apparatus for cycling synchronized respiratory pressure treatment, the apparatus comprising:
-
a patient interface to direct a breathable gas; a flow generator coupled with the patient interface to generate the breathable gas in inspiratory and expiratory pressure cycles through the patient interface; a flow sensor to provide a signal indicative of flow through the patient interface; a processor, coupled with the flow generator and the flow sensor, the processor configured to control; generation of inspiratory pressure and expiratory pressure over a first plurality of cycles, wherein the setting of the expiratory pressure is based on a first cycling criteria; and generation of inspiratory pressure and expiratory pressure over a second plurality of cycles subsequent to the first plurality of cycles, wherein the setting of the expiratory pressure is based on a second cycling criteria, the second cycling criteria being different from the first cycling criteria and being initiated for operation subsequent to the first plurality of cycles. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. An automated processing method for cycling a respiratory treatment apparatus that controls a delivery of a synchronized respiratory treatment, the method comprising:
-
determining a first flow measure with a flow sensor; determining a second flow measure attributable to the respiratory treatment apparatus; and evaluating, with a processor, a cycling criteria as a function of the first flow measure and the second flow measure. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 51, 52, 53, 54, 55, 56)
-
-
49. A respiratory treatment apparatus for cycling synchronized respiratory pressure treatment, the apparatus comprising:
-
a patient interface to direct a breathable gas; a flow generator coupled with the patient interface to generate the breathable gas in inspiratory and expiratory pressure cycles through the patient interface; a flow sensor to provide a signal indicative of patient flow through the patient interface; a processor, coupled with the flow generator and the flow sensor, the processor configured to control; a determination of a first flow measure from the flow sensor; a determination of a second flow measure attributable to the respiratory treatment apparatus; and an evaluation of a cycling criteria as a function of the first flow measure and the second flow measure. - View Dependent Claims (50, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
-
-
67. An automated processing method to determine a signal indicative of patient respiration for synchronization of a respiratory treatment apparatus, the method comprising:
-
determining a first inspiratory flow measure with a flow sensor; determining a second inspiratory flow measure; and determining, with a processor, a patient respiration measure as a function of the first inspiratory flow measure, the second inspiratory flow measure and an estimate of resistance and compliance derived from an expiratory portion of a flow measure of the flow sensor, the patient respiratory measure representing patient respiratory muscles effort; and determining a timing for switching a pressure treatment based on the respiration measure. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74)
-
-
75. A monitoring apparatus to determine a signal indicative of patient respiration for synchronization of a respiratory treatment, the apparatus comprising:
-
a controller having at least one processor to access data representing a measured flow of breathable gas from a flow sensor, the controller being further configured to; determine a first inspiratory flow measure with the data; determine a second inspiratory flow measure; and determine a patient respiration signal as a function of the first inspiratory flow measure, the second inspiratory flow measure and an estimate of resistance and compliance derived from an expiratory portion of a flow measure of the flow sensor, the patient respiratory signal representing effort attributable to patient respiratory muscles; and determine a timing for switching a pressure treatment based on the respiration measure. - View Dependent Claims (76, 77, 78, 79, 80, 81)
-
-
82. An automated processing method for cycling a respiratory treatment apparatus that controls a delivery of a synchronized respiratory treatment, the method comprising:
-
determining a flow measure with a flow sensor; determining a pressure measure with a pressure sensor; determining, with a processor, an estimate of muscle effort as a function of the flow measure and pressure measure; and deriving, with the processor, a cycling control signal as a function of the estimate of muscle effort. - View Dependent Claims (83, 84, 85, 86, 87, 88, 89, 90)
-
-
91. A respiratory treatment apparatus for cycling synchronized respiratory pressure treatment, the apparatus comprising:
-
a patient interface to direct a breathable gas; a flow generator coupled with the patient interface to generate the breathable gas in inspiratory and expiratory pressure cycles through the patient interface; a flow sensor to provide a signal indicative of patient flow through the patient interface; a pressure sensor to provide a signal indicative of pressure at the patient interface; a processor, coupled with the flow generator, the pressure sensor and the flow sensor, the processor configured to control; a determination of a flow measure with the flow sensor; a determination of a pressure measure with the pressure sensor; a determination of an estimate of muscle effort as a function of the flow measure and pressure measure; and a derivation of a cycling control signal as a function of the estimate of muscle effort. - View Dependent Claims (92, 93, 94, 95, 96, 97, 98, 99)
-
-
100. A respiratory treatment apparatus for switching synchronized respiratory pressure treatment, the apparatus comprising:
-
a patient interface to direct a breathable gas; a flow generator coupled with the patient interface to generate the breathable gas in inspiratory and expiratory pressure cycles through the patient interface; an electro-optical sensor for non-invasively measuring diaphragmatic muscle activity; and a processor, coupled with the flow generator and the sensor, the processor configured to control; a determination of muscle effort signal with the sensor; and a derivation of a switching control signal as a function of the muscle effort signal. - View Dependent Claims (101, 102, 103, 104, 105, 106)
-
Specification