Granted Patent B2

US 12,465,704 · App. 18/642,918 · Granted Nov 11, 2025

Inventors: Chau Chong Ye (Singapore, SG); Vinay Joshi (Singapore, SG); Suresha Venkataraya (Singapore, SG); Nookarajesh Varma Sangadi (Singapore, SG); Joel Preetham Fernandes (Singapore, SG); Jack Barney Sing (Batesville, IN); Eugene Hong Kheng Kung (Singapore, SG); Wei Teik Daniel Tan (Singapore, SG); Cong Jiang (Singapore, SG); Siew Ying Koh (Singapore, SG); Graham Keith Lacy (London, GB); Sergio Malorni (Windsor, GB); Alexander Cristian Hautenne Hanson (Altrincham, GB)

Assignee: HILL-ROM SERVICES PTE. LTD.

A61M16/0006A61M16/0009A61M16/0069A61M16/024A61M16/0833A61M16/107A61M16/201A61M2016/0027A61M2016/003A61M16/06A61M16/0683A61M2016/1025A61M2205/078A61M2205/15A61M2205/3368A61M2205/3553A61M2205/3561A61M2205/3592A61M2205/502A61M2205/505A61M2205/8206

Abstract

Claims (23)

1 . A respiratory device comprising

a blower having an inlet and an outlet,

a patient interface, and

a valve including a valve member that is rotatable through a first angular displacement in a first direction from a first position to a second position, wherein the outlet of the blower is coupled to the patient interface so that positive pressure is configured to be provided to a patient's airway via the patient interface when the valve member is in the first position, wherein the inlet of the blower is coupled to the patient interface so that negative pressure is configured to be provided to the patient's airway via the patient interface when the valve member is in the second position, wherein the valve member is rotatably oscillated back and forth through a second angular displacement that is smaller than the first angular displacement in the first direction and a second direction opposite to the first direction when the valve member is in the first position and when the valve member is in the second position so that oscillations in the positive pressure and negative pressure, respectively, are configured to be provided to the patient's airway, wherein the valve member comprises a rotatable spool within a stationary cylinder of the valve.

2 . The respiratory device of claim 1 , wherein the first angular displacement is less than 90°.

3 . The respiratory device of claim 2 , wherein the first angular displacement is about 22.5°.

4 . The respiratory device of claim 3 , wherein the second angular displacement is about 10°.

5 . The respiratory device of claim 1 , wherein a frequency of oscillation of the valve member is adjustable between about 1 Hertz and about 20 Hertz.

6 . The respiratory device of claim 1 , further comprising a motor that is operable to rotate and oscillate the valve member.

7 . The respiratory device of claim 6 , wherein the motor comprises a stepper motor.

8 . The respiratory device of claim 1 , wherein the rotatable spool has a first set of holes and the stationary cylinder has a second set of holes.

9 . The respiratory device of claim 8 , wherein a first subset of the first set of holes of the rotatable spool align with a first subset of the second set of holes of the stationary cylinder when the rotatable spool is in the first position and a second subset of holes of the second holes is blocked by solid portions of the rotatable spool.

10 . The respiratory device of claim 9 , wherein a second subset of the first set of holes of the rotatable spool align with the second subset of the second set of holes of the stationary cylinder when the rotatable spool is in the second position and the first subset of holes of the second holes is blocked by other solid portions of the rotatable spool.

11 . The respiratory device of claim 1 , wherein a speed of the blower is configured to be controlled so that the positive pressure provided to the airway of the patient substantially matches a positive target pressure selected by a user and so that the negative pressure provided to the airway of the patient substantially matches a negative target pressure selected by the user.

12 . The respiratory device of claim 11 , wherein the blower speed is configured to be controlled so that a positive rest pressure, less than the positive target pressure, is provided to the airway of the patient after the negative target pressure is applied to the airway of the patient and before the next positive target pressure is applied to the airway of the patient.

13 . The respiratory device of claim 12 , wherein the blower speed is configured to be controlled so that a sigh pressure is applied to the airway of the patient at the end of a therapy session, the sigh pressure being greater than the positive rest pressure but less than the positive target pressure.

14 . The respiratory device of claim 1 , further comprising a sensor configured to sense a beginning of an inspiration of the patient and a control circuitry coupled to the sensor and to the valve, the control circuitry configured to signal the valve to move to the first position in response to the sensor sensing the beginning of the inspiration of the patient, and the control circuitry configured to signal the blower to operate to provide the positive pressure to the airway of the patient at a positive target pressure.

15 . The respiratory device of claim 14 , wherein the sensor comprises a pressure sensor or a flow sensor or both.

16 . The respiratory device of claim 14 , wherein the control circuitry is programmable with a pause time during which sensing of the beginning of an inspiration of the patient is ignored by the control circuitry and the control circuitry configured to signal the blower to operate to provide a rest pressure to the airway of the patient, the rest pressure being a positive pressure that is less than the positive target pressure.

17 . The respiratory device of claim 1 , further comprising a control circuitry coupled to the blower and to the valve, a graphical user interface (GUI) coupled to the control circuitry, and one or more of the following coupled to the control circuitry: a port for connection to a wireless communication module, a universal serial bus (USB) port, and a port for connection to a pulse oximetry device.

18 . The respiratory device of claim 1 , further comprising a control circuitry coupled to the blower and to the valve and a graphical user interface (GUI) coupled to the control circuitry, the GUI being operable to display one or more of the following: peak flow information, pressure information, flow information, volume information, a pressure graph, a volume graph, a flow graph, a flow vs. volume graph, and a pressure vs. time graph.

19 . The respiratory device of claim 1 , further comprising a wireless communication module that is operable to transmit data wirelessly from the respiratory device.

20 . The respiratory device of claim 19 , wherein the wireless communication module operates according to the Bluetooth protocol.

Priority Claims (1)

Continuity (5)

References Cited (400)