Breathing assistance device

• US 20060150973A1
• Filed: 07/05/2004
• Published: 07/13/2006
• Est. Priority Date: 07/04/2003
• Status: Active Grant

• Current Assignee: Resmed Paris (ResMed Incorporated)
• Original Assignee: Societe D'Applications Industrielles
• Inventors: Chalvignac, Philippe
• Granted Patent: US 7,874,290 B2
• Time in Patent Office: Days
• US Class Current: 128/204.210
• CPC Class Codes: A61M 16/0057 Pumps therefor
• CPC Class Codes: A61M 16/0063 Compressors
• CPC Class Codes: A61M 16/0066 Blowers or centrifugal pumps
• CPC Class Codes: A61M 16/0069 the speed thereof being controlled by respiratory parameters, e.g. by inhalation
• CPC Class Codes: A61M 16/022 Control means therefor
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 2016/0021 with a proportional output signal, e.g. from a thermistor
• 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 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission

Abstract

A breathing assistance device (10) for a patient, comprising: A source of respiratory pressurised gas (105), A breathing connection (120) to allow the patient to receive said gas, At least one sensor for acquiring a parameter representative of the operation of the device (10), wherein said gas source (105) is a ventilator (210), and said ventilator (210) is integrated into a removable module (20) which also comprises at least one sensor for acquiring a parameter representative of the operation of the device (10).

Claims

1. A breathing assistance device for a patient, comprising:

A source of respiratory pressurised gas,

A breathing connection for allowing the patient to receive said gas,

At least one sensor for acquiring a parameter representative of the operation of the device,

characterised in that said gas source is a ventilator, and said ventilator is integrated into a removable module which also comprises at least one sensor for acquiring a parameter representative of the operation of the device.

2. The device as claimed in the preceding claim, characterised in that said module comprises pressure sensor of respiratory gas and a flow sensor.

3. The device as claimed in any one of the preceding claims, characterised in that the module is fixed on the device by a removable connection, such that disassembly of the module is easy.

4. The device as claimed in the preceding claim, characterised in that said removable connection comprises a thread pitch.

5. The device as claimed in claim 3, characterised in that said removable connection comprises means for clipping the module.

6. The device as claimed in any one of the preceding claims, characterised in that said breathing connection is in the form of a mask.

7. The device as claimed in the preceding claim, characterised in that said mask is a mask not having means allowing leaks, such as vents.

8. The device as claimed in any one of the preceding claims, characterised in that the module is fixed directly on the breathing connection, such that the device does not comprise a conduit for conveying respiratory gas which would connect the breathing connection to a fixed offline console of the device.

9. The device as claimed in the preceding claim, characterised in that the ensemble formed by the breathing connection and the module is linked to a control console of the device.

10. The device as claimed in the preceding claim, characterised in that said link allows data to be transmitted between said ensemble and said console.

11. The device as claimed in the preceding claim, characterised in that said link is a wireless link.

12. The device as claimed in claim 10, characterised in that said link helps to convey the energy required to operate the components of the module from said console to said ensemble.

13. The device as claimed in the preceding claim, characterised in that said link is a wire link.

14. The device as claimed in any one of the preceding claims, characterised in that the ventilator is an axial ventilator.

15. The device as claimed in the preceding claim, characterised in that the rotor of the ventilator axial comprises a single stage.

16. The device as claimed in any one of the two preceding claims, characterised in that in the ventilator the respective directions of the input and output of respiratory gas are substantially parallel.

17. The device as claimed in any one of the three preceding claims, characterised in that the ventilator comprises:

a central input substantially aligned with the axis of rotation of the rotor of the ventilator,

an outlet allowing the flux generated by said rotor to be collected according to an oblique direction relative to said axis of rotation, and

means for rectifying said flux generated and collected, so that this flux flows out of the ventilator in a general direction substantially parallel to said axis of rotation of the rotor of the ventilator.

18. The device as claimed in any one of the preceding claims, characterised in that the device is of type BPAP.

19. The device as claimed in any one of claims 1 to 17, characterised in that the device is of type CPAP.