Inflation control valves for resuscitator devices and resuscitator devices

• US 10,456,548 B2
• Filed: 12/14/2012
• Issued: 10/29/2019
• Est. Priority Date: 12/15/2011
• Status: Active Grant

• Current Assignee: Emory University
• Original Assignee: Emory University
• Inventors: Ackerman, Jeremy D., Kellermann, Arthur L., Raji, Sam, Sabooree, Arsalan, Ramachandran, Lintu
• Primary Examiner(s): Ho, (Jackie) Tan-Uyen T
• Assistant Examiner(s): Boecker, Joseph D
• Application Number:
  US14/364,739
• Publication Number:
  US 20140318545A1
• Time in Patent Office: 2,510 Days
• CPC Class Codes: A61M 16/0078 Breathing bags
• CPC Class Codes: A61M 16/0084 self-reinflatable by elasticity, e.g. resuscitation squeeze bags
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/201 Controlled valves
• CPC Class Codes: A61M 16/208 Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves

Abstract

Resuscitator devices including inflation control devices and the inflation control valves can prevent an excessive number of breaths per minute during manual resuscitation from being delivered to a patient. The inflation control valves are inlet valves for a resuscitator device having a flexible chamber that extends from a first end to a second end, the second end being configured to attach to an airway adjunct. The valve housing may be configured to be disposed about the first end and to receive air for inflating the flexible chamber, the valve housing being partially disposed within the flexible chamber. The inflation control member may be configured to control inflation rate of the flexible chamber, the inflation control member being disposed within the valve housing and movable with respect to the valve housing.

Claims

1. An inlet valve for a resuscitator device having a flexible chamber that extends from a first end to a second end, the second end being configured to attach to an airway adjunct, comprising:

a valve housing configured to be disposed at the first end of the flexible chamber and to receive air for inflating the flexible chamber, the valve housing being partially disposed within the flexible chamber,

the valve housing extending between a first end and a second end that is parallel to and opposes the first end,

the first end of the valve housing including an opening,

the second end of the valve housing being closed and being configured to be disposed within the flexible chamber,

the valve housing including a first portion, a second portion, and a third portion that are disposed between the first end and the second end of the valve housing,

the third portion being disposed between the first portion and the second portion,

the first portion including the first end of the valve housing and including a one-way valve disposed at the opening of the first end of the valve housing, the one-way valve being configured to intake the air for inflating the flexible chamber,

the second portion including the second end of the valve housing and an outlet section that includes an opening,

the outlet section being configured to deliver the air into the flexible chamber and extending perpendicular to the first end and the second end of the valve housing; and

an inflation control member configured to control a rate of inflation of the flexible chamber, the inflation control member being disposed within the valve housing and movable with respect to the valve housing between the first end and the second end of the valve housing.

2. The valve according to claim 1, wherein the inflation control member is configured to cause a predetermined delay between substantially full inflation and compression of the flexible chamber.

3. The valve according to claim 1, wherein:

the inflation control member is configured to move within the valve housing between at least a first position and a second position; and

the inflation control member is configured to allow the flexible chamber to inflate when the inflation control member is disposed at the first position with respect to the valve housing.

4. The valve according to claim 3, wherein the inflation control member is configured to allow maximum compression of the flexible chamber when the inflation control member is disposed at the second position with respect to the valve housing.

5. The valve according to claim 1, wherein:

the inflation control member includes a spring and a platform;

the spring is fixedly disposed to the second end of the valve housing and the platform; and

the platform is parallel to the first end and the second end of the valve housing.

6. The valve according to claim 1, wherein:

the first portion is configured to be disposed substantially outside of the flexible chamber; and

the second portion is configured to be disposed substantially within the flexible chamber.

7. The valve according to claim 1, wherein the inflation control member is configured to allow the flexible chamber to inflate when the control member is disposed between the outlet section and the second end of the valve housing.

8. The valve according to claim 1, wherein the inflation control member is configured to permit one maximum compression per every about 5 seconds.

9. The valve according to claim 1, wherein:

the valve housing is rigid;

the second portion includes a cylindrical section that extends parallel to the first portion and has a cylindrical shape, the cylindrical section including the outlet portion being disposed perpendicular to the third portion; and

the third portion extends radially from the first portion and the second portion.

10. A resuscitator device, comprising:

a flexible chamber that extends from a first end to a second end, the second end of the flexible chamber being configured to deliver air to a patient through an airway adjunct; and

an inlet valve disposed at the first end of the flexible chamber and partially disposed within the flexible chamber, the inlet valve including;

a valve housing configured to receive air for inflating the flexible chamber,

the valve housing extending between a first end and a second end that is parallel to and opposes the first end of the valve housing,

the first end of the valve housing including an opening and disposed outside of the flexible chamber,

the second end of the valve housing being closed and disposed within the flexible chamber;

a one-way valve disposed at the opening of the first end of the valve housing and configured to intake the air for inflating the flexible chamber; and

an inflation control member configured to control a rate of inflation of the flexible chamber, the inflation control member being disposed within the valve housing and movable with respect to the valve housing between the first end and the second end of the valve housing.

11. The resuscitator device according to claim 10, further comprising:

an airway adjunct assembly disposed at the second end of the flexible chamber.

12. The resuscitator device according to claim 11, wherein:

the inflation control member is configured to move within the valve housing between at least a first position and a second position; and

the inflation control member is configured to allow the flexible chamber to inflate when the inflation control member is disposed at the first position with respect to the valve housing.

13. The resuscitator device according to claim 12, wherein the inflation control member is configured to allow maximum compression of the flexible chamber when the inflation control member is disposed at the second position with respect to the valve housing.

14. The resuscitator device according to claim 10, wherein:

the inflation control member includes a spring and a platform; and

the spring is fixedly disposed to the second end of the valve housing and the platform.

15. The resuscitator device according to claim 10, wherein:

the valve housing includes a first portion and a second portion, the first portion being disposed substantially outside of the flexible chamber and including the first end of the valve housing, the second portion being disposed substantially within the flexible chamber and including the second end of the valve housing; and

the second portion including an outlet section that includes an opening and is configured to deliver air to into the flexible chamber, the outlet section extending perpendicular to the first end and the second end of the valve housing.

16. The resuscitator device according to claim 15, wherein the inflation control member is configured to allow the flexible chamber to inflate when the control member is disposed between the outlet section and the second end of the valve housing.

17. The resuscitator device according to claim 10, wherein the inflation control member is configured to permit one maximum compression of the flexible chamber per every about 5 seconds.

18. The resuscitator device according to claim 10, wherein the flexible chamber is configured to deliver 700 mL of air during a maximum compression with one hand or 1100 mL of air during a maximum compression with two hands.

19. The resuscitator device according to claim 10, wherein the inflation control member is configured to cause a predetermined delay between compression and substantially full inflation of the flexible chamber.

20. The resuscitator device according to claim 15, wherein:

the second portion includes a cylindrical section that extends parallel to the first portion and has a cylindrical shape, the cylindrical section including the outlet portion;

the valve housing includes a third portion that is disposed between the first portion and the second portion and that extends radially from the first portion and the second portion; and

wherein the third portion is disposed at the first end of the flexible chamber.