Respiratory therapy device and filtration units therefor

Patent metadata

Field	Value
Publication number	US-9272115-B2
Application number	US-201213685103-A
Country	US
Kind code	B2
Filing date	Nov 26, 2012
Priority date	Nov 26, 2012
Publication date	Mar 1, 2016
Grant date	Mar 1, 2016

Abstract

A respiratory therapy device comprises a pneumatic control unit connectable to a source of medical grade oxygen for supplying oxygen to a first control unit outlet port at a first set of conditions and to a second control unit outlet port at a second set of conditions. First and second transfer conduits are in fluid communication with the first and second outlet ports. Each transfer conduit defines at least part of a flowpath to destination. Each flowpath includes a filter. A related filtration module comprises a filter housing defining two or more filter compartments. The housing has an input side with a gas inlet in fluid communication with each of the filter compartments and a gas outlet in fluid communication with each of the filter compartments. A filter element resides in each of the compartments intermediate the gas inlet to the compartment and the gas outlet from the compartment.

First claim

We claim:

1. A respiratory therapy device comprising:
a pneumatic control unit connectable to a source of gas, the control unit adapted to supply the gas to a first control unit outlet port at a first set of conditions and to a second control unit outlet port at a second set of conditions;
a first transfer conduit in fluid communication with the first control unit outlet port, the first transfer conduit defining at least part of a first flowpath to a nebulizer, the first flowpath including a first filter, and wherein the first set of conditions includes pressure and flow rate consistent with the reeds of the nebulizer; and
a second transfer conduit in fluid communication with the second control unit outlet port, the second transfer conduit defining at least part of a second flowpath to a therapy gas connector, the second flowpath including a second filter, and wherein the second set of conditions includes:
pressure and flow rate consistent with a desired intensity of CPEP therapy and
pressure, flow rate, percussive frequency and percussive amplitude consistent with a desired intensity of CHFO therapy.

2. The respiratory therapy device of claim 1 wherein the first filter is located in a portion of the first flowpath defined by the first transfer conduit and the second filter is located in a portion of the second flowpath defined by the second transfer conduit.

3. The respiratory therapy device of claim 1 including a filter module comprised of a filter housing which defines a first filter compartment containing the first filter and second filter compartment containing the second filter, the housing having an input side and a connector unit on the input side, the connector unit including a first inlet in fluid communication with the first filter compartment and a second inlet in fluid communication with the second filter compartment, the connector unit being adapted to mate with the control unit to put the first inlet in fluid communication with the first control unit outlet port to put the second inlet in fluid communication with the second control unit outlet port, the housing also having an output side with a first outlet in fluid communication with the first filter compartment and the first transfer conduit and a second outlet in communication with the second filter compartment and the second transfer conduit thereby establishing the fluid communication between the first and second outlet ports and the first and second control unit, transfer conduits respectively.

4. The respiratory therapy device of claim 3 wherein the filter housing comprises an inlet shell which includes the inlets and an outlet shell which includes the outlets, the inlet and outlet shells engaged with each other to define the two or more compartments.

5. The respiratory therapy device of claim 4 wherein the inlet shell and the outlet shell are substantially identical to each other.

6. The respiratory therapy device of claim 3 wherein the connector unit includes
1) a radially projecting tab engageable with the pneumatic control unit to resist unintended disconnection of the connector unit from the pneumatic control unit; and
2) a key to resist inappropriate connection of the connector unit to the pneumatic control unit.

7. The respiratory therapy device of claim 3 wherein the filter housing defines a third filter compartment containing a third filter, and wherein the connector unit includes a third inlet in fluid communication with the third filter compartment, the connector unit being adapted to also put the third inlet in fluid communication with a third control unit cutlet port, the output side of the housing having a third outlet in fluid communication with the third filter compartment and with a pressure sense line.

8. The respiratory therapy device of claim 7 wherein the respiratory therapy device comprises a pressure sense line having a control unit terminus connected to the third outlet and a pressure pickup terminus connected to a circuit.

9. The respiratory therapy device of claim 1 wherein the control unit includes a pressure sense port and the respiratory therapy device comprises a pressure sense line having a pressure pickup terminus and a control unit terminus, the control unit terminus being in communication with the pressure sense port, the pressure sense line forming at least part of a pressure sense path, the pressure sense path including a third filter.

10. The respiratory therapy device of claim 9 wherein the third filter is located in a portion of the pressure sense path defined by the pressure sense line.

11. A respiratory therapy device comprising:
a handset having a nebulizer branch, a therapy gas branch and a pressure sense chamber;
a pneumatic control unit having a first control unit outlet port, a second control unit outlet port and a pressure sense port, the control unit being connectable to a supply of gas and adapted to supply the gas to the first control unit outlet port at a pressure and flow rate consistent with requirements of the nebulizer branch and to supply the gas to the second control unit outlet port at:
A) a pressure and flow rate consistent with a desired intensity of CPEP therapy and
B) a pressure, flow rate, percussive frequency and percussive amplitude consistent with a desired intensity of CHFO therapy;

a first conduit which defines at least part of a first flowpath, the first flowpath extending from the first control unit outlet port to the nebulizer branch, the first flowpath including a first filter;
a second conduit which defines at least part of a second flowpath, the second flowpath extending from the second control unit outlet port to the therapy branch the second flowpath including a second filter; and
a pressure sense line which defines at least part of a third flowpath, the third flowpath extending from the pressure sense port to the pressure sense chamber.

12. The respiratory therapy device of claim 11 wherein the first and second conduits each have a control unit terminus and a handset terminus, the first filter is located between the terminii of the first conduit and the second filter is located between the terminii of the second conduit.

13. The respiratory therapy device of claim 12 wherein the pressure sense line has a control unit terminus and a handset terminus and wherein the therapy device includes a third filter located between the terminii of the pressure sense line.

14. The respiratory therapy device of claim 11 including a single filter module having first and second filter compartments within a filter housing wherein the first filter resides in the first filter compartment and the second filter resides in the second filter compartment.

15. The respiratory therapy device of claim 14 wherein the filter module includes a third filter compartment and wherein a third filter resides in the third filter compartment.

16. The respiratory therapy device of claim 15 wherein:
the control unit includes a pair of retainers and a rotatable connector disk which includes a receptacle and the first, second and third control unit outlet ports;
the filter housing has an input side and an output side, the output side including a first outlet connectable to the first conduit, a second outlet connectable to the second conduit and a third outlet connectable to the pressure sense line, the input side including a connector unit having first, second and third inlets arranged to be placed in registration with the first second and third control unit outlet ports, the connector unit also including:
a pair of radially projecting tabs each engageable with one of the

Assignees

• Bobey John Alan
• Byrd Brian E
• Hill Rom Services Pte Ltd

Inventors

• Bobey John Alan
• Byrd Brian E

Classifications

• A61M16/0858

  Pressure sampling ports · CPC title

• A61M11/06

  of the injector type · CPC title

• A61M16/0488 Primary

  Mouthpieces; Means for guiding, securing or introducing the tubes (guiding or introducing with laryngoscopes A61B1/267; holding devices on the body A61M25/02) · CPC title

• A61M16/0875

  Connecting tubes · CPC title

• A61M2202/0208

  Oxygen · CPC title