Ventilator with integrated oxygen production

• US 10,315,002 B2
• Filed: 03/24/2015
• Issued: 06/11/2019
• Est. Priority Date: 03/24/2015
• Status: Active Grant

• Current Assignee: Ventec Life Systems, Inc.
• Original Assignee: Ventec Life Systems, Inc.
• Inventors: DeVries, Douglas F., Good, David M., Gaw, Shan E., Cipollone, Joseph, Branson, Richard
• Primary Examiner(s): Merene, Jan Christopher L
• Assistant Examiner(s): Boecker, Joseph D.
• Application Number:
  US14/667,480
• Publication Number:
  US 20160279363A1
• Time in Patent Office: 1,540 Days
• CPC Class Codes: A61M 16/0009 with sub-atmospheric pressure, e.g. during expiration
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/0057 Pumps therefor
• CPC Class Codes: A61M 16/0063 Compressors
• CPC Class Codes: A61M 16/0069 the speed thereof being controlled by respiratory parameters, e.g. by inhalation
• CPC Class Codes: A61M 16/024 including calculation means, e.g. using a processor
• CPC Class Codes: A61M 16/0808 Condensation traps
• CPC Class Codes: A61M 16/0816 Joints or connectors
• CPC Class Codes: A61M 16/0858 Pressure sampling ports
• CPC Class Codes: A61M 16/0875 Connecting tubes
• CPC Class Codes: A61M 16/0883 Circuit type
• CPC Class Codes: A61M 16/101 using an oxygen concentrator
• CPC Class Codes: A61M 16/1055 bacterial
• CPC Class Codes: A61M 16/107 in the inspiratory path
• CPC Class Codes: A61M 16/20 Valves specially adapted to medical respiratory devices
• CPC Class Codes: A61M 16/201 Controlled valves
• CPC Class Codes: A61M 16/202 electrically actuated
• CPC Class Codes: A61M 16/207 Membrane valves with pneumatic amplification stage, i.e. having master and slave membranes
• CPC Class Codes: A61M 16/208 Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
• CPC Class Codes: A61M 2016/0027 pressure meter
• CPC Class Codes: A61M 2016/0036 : in the breathing tube and used in both inspiratory and expiratory phase
• CPC Class Codes: A61M 2016/0039 : in the inspiratory circuit
• CPC Class Codes: A61M 2016/1025 : the O2 concentration
• CPC Class Codes: A61M 2202/0007 : introduced into the body
• CPC Class Codes: A61M 2202/0208 : Oxygen
• CPC Class Codes: A61M 2205/0272 : Electro-active or magneto-active materials
• CPC Class Codes: A61M 2205/3334 : Measuring or controlling the flow rate
• CPC Class Codes: A61M 2205/3358 : Measuring barometric pressure, e.g. for compensation
• CPC Class Codes: A61M 2205/42 : Reducing noise
• CPC Class Codes: A61M 2205/502 : User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/52 : with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: B01D 2256/12 : Oxygen
• CPC Class Codes: B01D 2257/102 : Nitrogen
• CPC Class Codes: B01D 2259/40009 : using sensors or gas analysers
• CPC Class Codes: B01D 2259/401 : using a single bed
• CPC Class Codes: B01D 2259/4533 : for medical purposes
• CPC Class Codes: B01D 53/0476 : Vacuum pressure swing adsorption
• CPC Class Codes: B01D 53/053 : with storage or buffer vessel

Abstract

A method of providing a breath to a human patient. The patient has a patient connection connected, by a patient circuit, to a ventilator having a first ventilator connection and a different second ventilator connection. Each of the first and second ventilator connections are in fluid communication with the patient circuit. The method includes identifying, with the ventilator, initiation of an inspiratory phase of the breath, delivering a bolus of oxygen to the first ventilator connection before or during the inspiratory phase, and delivering breathing gases comprising air to the second ventilator connection during the inspiratory phase. The ventilator isolates the bolus of oxygen delivered to the first ventilator connection from the breathing gases delivered to the second ventilator connection.

Claims

1. A method of providing a breath to a human patient having a patient connection connected by a patient circuit to a ventilator having a first ventilator connection and a different second ventilator connection, each of the first and second ventilator connections being in fluid communication with the patient circuit, the method comprising:

identifying, with the ventilator, initiation of an inspiratory phase of the breath;

delivering a bolus of oxygen to the first ventilator connection before or during the inspiratory phase; and

delivering breathing gases comprising air to the second ventilator connection during the inspiratory phase, the ventilator isolating the bolus of oxygen delivered to the first ventilator connection from the breathing gases delivered to the second ventilator connection, wherein the delivery of the bolus of oxygen is terminated before commencing the delivery of the breathing gases.

2. The method of claim 1, wherein the bolus of oxygen is delivered at the initiation of the inspiratory phase of the breath.

3. The method of claim 1, further comprising:

determining, with the ventilator, a volume of the bolus of oxygen delivered for the breath.

4. The method of claim 1 for use with a user specified total tidal volume, wherein the breathing gases delivered for the breath have a first volume, the bolus of oxygen delivered for the breath has a second volume, and combined the first and second volumes are substantially equal to the user specified total tidal volume.

5. The method of claim 1 for use with a user specified peak inspiratory pressure value, wherein a combined pressure of the breathing gases and the bolus of oxygen delivered for the breath does not exceed the user specified peak inspiratory pressure value.

6. A method of providing a breath to a human patient having a patient connection connected by a patient circuit to a ventilator having a first ventilator connection and a different second ventilator connection, each of the first and second ventilator connections being in fluid communication with the patient circuit, the method comprising:

identifying, with the ventilator, initiation of an inspiratory phase of the breath;

identifying, with the ventilator, an end of the inspiratory phase of the breath;

delivering a bolus of oxygen to the first ventilator connection before or during the inspiratory phase;

terminating the delivery of the bolus of oxygen before the end of the inspiratory phase;

delivering breathing gases comprising air to the second ventilator connection during the inspiratory phase, the ventilator isolating the bolus of oxygen delivered to the first ventilator connection from the breathing gases delivered to the second ventilator connection, wherein the breathing gasses are delivered after the delivery of the bolus of oxygen has been terminated; and

measuring an inspiratory pressure value at a location downstream of a merger of the first ventilator connection and the second ventilator connection.

7. The method of claim 6, wherein the bolus of oxygen is delivered at the initiation of the inspiratory phase of the breath.

8. The method of claim 6, further comprising:

determining, with the ventilator, a volume of the bolus of oxygen delivered for the breath.

9. The method of claim 6 for use with a user specified total tidal volume, wherein the breathing gases delivered for the breath have a first volume, the bolus of oxygen delivered for the breath has a second volume, and combined the first and second volumes are substantially equal to the user specified total tidal volume.

10. The method of claim 6 for use with a user specified peak inspiratory pressure value, wherein a combined pressure of the breathing gases and the bolus of oxygen delivered for the breath does not exceed the user specified peak inspiratory pressure value.