Method for controlling oxygen delivered to patient in oxygen therapy and related products
Inventors
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Assignees
Member
Telesair, Inc.Telesair, Inc. develops, engineers, and manufactures non-invasive respiratory care devices focused on high flow oxygen therapy for hospital and long-term care. Their technology integrates real-time sensor monitoring, automated alarm and safety systems, and user interface solutions. The company adheres to global regulatory standards, quality assurance, and infection control protocols to support safe, effective respiratory therapy for both adults and children.
Telesair, Inc. develops, engineers, and manufactures non-invasive respiratory care devices focused on high flow oxygen therapy for hospital and long-term care. Their technology integrates real-time sensor monitoring, automated alarm and safety systems, and user interface solutions. The company adheres to global regulatory standards, quality assurance, and infection control protocols to support safe, effective respiratory therapy for both adults and children.
Publication Number
US-11318268-B1
Publication Date
2022-05-03
Expiration Date
Abstract
Provided are a method for controlling an oxygen provider and a portable device. The method includes: acquiring measurement data at a patient side; determining an oxygen demand volume and an output pattern of an oxygen provider based on the acquired measurement data and a desired oxygen fraction ratio; and controlling the oxygen provider with the oxygen demand volume and the output pattern. With the method or device for controlling an oxygen provider, oxygen with an amount that actually needed by a patient is provided to produce the blended gas to be delivered to the patient, and the blended gas delivered to the patient are regulated according to the output pattern to guarantee the blended gas is delivered in synchronization with the inspiration of the patient, so that a therapeutic effect is achieved with a lower oxygen consumption amount.
Core Innovation
The invention relates to an oxygen-therapy control method and a portable controlling device for controlling an oxygen provider that includes an oxygen source and a blower device. The method acquires measurement data at a patient side of the oxygen provider and dynamically determines an oxygen demand volume and an output pattern of the blower device based on the acquired measurement data and a desired oxygen fraction ratio (FiO2).
The method further determines a blended gas demand volume, an inspiration time, and a breathing period based on the measurement data, and determines the oxygen demand volume based on the blended gas demand volume and the desired oxygen fraction ratio. An output pattern of the blower device is then determined based on the blended gas demand volume, the inspiration time, and the breathing period.
The output pattern includes a blowing period, a blower flow, and a wash out flow, where the blowing period comprises a first time span and a second time span. The blower device is controlled with the blower flow to output blended gas in the first time span, where the blended gas is a mixture of oxygen and air, and with the wash out flow in the second time span. For oxygen-source operation, a duty cycle of the oxygen source is determined based on the oxygen demand volume and the inspiration time, and the oxygen source operates according to the duty cycle in the inspiration time.
Claims Coverage
The independent claims are clm-00001, clm-00010, and clm-00014. Across these independent claims, the coverage centers on patient-side measurement data, determination of an oxygen demand volume and a blower output pattern with a blowing period split into first and second time spans, and control of the oxygen source and blower device based on inspiration timing derived from the measurement data.
Patient-side measurement to determine oxygen demand volume and blower output pattern
Acquiring measurement data at a patient side of the oxygen provider comprising an oxygen source and a blower device; determining an oxygen demand volume and an output pattern of the blower device based on the acquired measurement data and a desired oxygen fraction ratio, wherein the output pattern comprises a blowing period, a blower flow and a wash out flow and the blowing period comprises a first time span and a second time span.
Derivation of inspiration time and breathing period from measurement data
Determining a blended gas demand volume, an inspiration time and a breathing period based on the measurement data; determining the oxygen demand volume based on the blended gas demand volume and the desired oxygen fraction ratio; and determining the output pattern of the blower device based on the blended gas demand volume, the inspiration time and the breathing period.
Blended gas output in first time span and wash out in second time span
Determining the blower flow based on the blended gas demand volume and the inspiration time and determining the blowing period based on the inspiration time and the breathing period; controlling the blower device with the blower flow to output blended gas in the first time span, wherein the blended gas is a mixture of oxygen and air; and controlling the blower device with the wash out flow in the second time span.
Oxygen source duty cycle controlled during inspiration time
Determining a duty cycle of the oxygen source based on the oxygen demand volume and the inspiration time; and controlling the oxygen source to operate according to the duty cycle in the inspiration time.
Controlling device architecture for patient-side acquisition and oxygen-provider control
A controlling device comprising at least one processor and a memory storing instructions executable by the processor, configured to acquire measurement data at a patient side; determine an oxygen demand volume and an output pattern of the blower device based on the acquired measurement data and a desired oxygen fraction ratio; control the oxygen source with the oxygen demand volume; control the blower device with the blower flow to output blended gas in the first time span; and control the blower device with the wash out flow in the second time span, including determining the duty cycle based on the oxygen demand volume and the inspiration time and operating according to the duty cycle in the inspiration time.
Portable device with controlling device communicatively connected to oxygen provider
A portable device including a controlling device configured to communicatively connect to an oxygen provider, wherein the controlling device acquires measurement data and performs determination and control of the oxygen source and blower device as recited, and the portable device and the oxygen provider are communicatively connected.
Method controlling oxygen provider including generated oxygen and blended gas flow
Acquiring measurement data at a patient side of the oxygen provider; determining an oxygen demand volume and an output pattern based on the acquired measurement data and a desired oxygen fraction ratio, wherein the output pattern comprises a blowing period, a blended gas flow and a wash out flow with the blowing period comprising a first time span and a second time span; controlling the oxygen provider with the oxygen demand volume to generate oxygen; controlling the oxygen provider with the blended gas flow to output blended gas in the first time span, wherein the blended gas is a mixture of the generated oxygen and air; and controlling the oxygen provider with the wash out flow in the second time span, including determining blended gas demand volume, inspiration time, breathing period, determining blended gas flow from blended gas demand volume and inspiration time, and operating the provider according to a duty cycle based on the oxygen demand volume and the inspiration time.
Across clm-00001, clm-00010, and clm-00014, the claims cover controlling an oxygen provider by acquiring patient-side measurement data, deriving an oxygen demand volume and a blower output pattern with a blowing period split into first and second time spans, outputting blended oxygen/air during the first time span and wash out flow during the second time span, and controlling oxygen-source operation using a duty cycle determined from oxygen demand volume and inspiration time.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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