Manifold assembly

• US 20050139532A1
• Filed: 10/20/2004
• Published: 06/30/2005
• Est. Priority Date: 10/20/2003
• Status: Abandoned Application

• Current Assignee: Stryker Instruments, A Division Of Stryker Corporation (Stryker Corporation)
• Original Assignee: Stryker Instruments, A Division Of Stryker Corporation (Stryker Corporation)
• Inventors: Staley, Karen L., MacDonald, Bruce, Isham, Stephen P., Hershberger, David, Adloff, Brian
• Application Number:
  US10/969,619
• Publication Number:
  US 20050139532A1
• Time in Patent Office: Days
• US Class Current: 210/136
• CPC Class Codes: A61M 1/60 Containers for suction drainage, adapted to be used with an external suction source containers not adapted for subjection to vacuum A61M1/69
• CPC Class Codes: A61M 1/79 Filters for solid matter specially adapted for dental use A61C17/065
• CPC Class Codes: B01D 35/153 Anti-leakage or anti-return valves
• CPC Class Codes: Y10T 137/87571 Multiple inlet with single outlet
• CPC Class Codes: Y10T 137/87676 With flow control

Abstract

A manifold assembly (100) for directing and filtering material (102) from fluid flowing into a medical waste collection device (104) includes a plurality of inlet ports (116) and an outlet port (118) with a filter (108, 110, 112) disposed between the ports (116, 118) along a fluid path (120). An outlet check-valve (114) is disposed at the outlet port (118) for opening in response to a predetermined vacuum pressure applied to the outlet port (118) from the medical waste collection device (104).

Claims

1. A manifold assembly for directing and filtering material from fluid flowing into a medical waste collection device, said assembly comprising:

a manifold housing defining a plurality of inlet ports and at least one outlet port in spaced relationship to said inlet ports to establish a fluid path;

a primary filter disposed in said fluid path between said inlet ports and said outlet port to filter the material from the fluid in said fluid path; and

a plurality of port caps for covering said plurality of inlet ports and a plurality of connection straps integrally formed on said manifold housing connecting each of said port caps to said manifold housing for retaining each of said port caps to said manifold housing when not covering the associated inlet port.

2. A manifold assembly as set forth in claim 1 further comprising an outlet check-valve disposed at said outlet port for retaining the fluid in said housing.

3. A manifold assembly as set forth in claim 1 wherein said manifold housing defines an access port for collecting the material from said primary filter in said manifold housing.

4. A manifold assembly as set forth in claim 3 further including an access cover for closing said access port and removable for opening said access port.

5. A manifold assembly as set forth in claim 1 wherein said manifold housing is semi-transparent for viewing the material in the manifold housing.

6. A manifold assembly as set forth in claim 1 wherein each of said plurality of inlet ports includes an entrance tube disposed about an entry axis.

7. A manifold assembly as set forth in claim 6 wherein all of said entry axes are parallel.

8. A manifold assembly as set forth in claim 6 wherein all of said entry axes are non-parallel.

9. A manifold assembly as set forth in claim 6 wherein each of said inlet ports includes an exit tube disposed on an exit axis.

10. A manifold assembly as set forth in claim 9 wherein said exit axis is transverse to said entry axis.

11. A manifold assembly as set forth in claim 10 wherein each of said entrance tubes includes a directional wall normal to said inlet flow axis for turning the fluid from said entry axis and into said inlet exit tube along said exit axis.

12. A manifold assembly as set forth in claim 9 further including an inlet check-valve disposed at each of said inlet ports for opening in response to a predetermined vacuum pressure applied to the outlet port from the medical waste collection device.

13. A manifold assembly as set forth in claim 12 wherein each of said inlet check-valves is disposed about one of said exit tubes.

14. A manifold assembly as set forth in claim 6 wherein said manifold housing includes a manifold body having a bottom and a peripheral wall extending upwardly from said bottom, and a manifold top disposed over said peripheral wall to define a chamber.

15. A manifold assembly as set forth in claim 14 wherein said outlet port is disposed in said bottom of said manifold body and extends downwardly therefrom about an outlet axis to an outlet end.

16. A manifold assembly as set forth in claim 15 wherein said outlet port extends to a lower end and a retaining flange extends radially inward at said outlet end, said outlet check valve being disposed on said retaining flange within said outlet port on said outlet flow axis.

17. A manifold assembly as set forth in claim 15 wherein said outlet port is centrally disposed and said bottom is conical and slopes downwardly from said peripheral wall to said outlet port.

18. A manifold assembly as set forth in claim 17 wherein said manifold housing further includes a plurality of spaced support spokes extending radially from said outlet port.

19. A manifold assembly as set forth in claim 18 wherein said primary filter is supported by said support spokes.

20. A manifold assembly as set forth in claim 19 wherein said primary filter is comprised of a plurality of filter layers and supported by said support spokes to filter the material from the fluid in said fluid path.

21. A manifold assembly as set forth in claim 20 wherein at least two of said filter layers has a different porosity.

22. A manifold assembly as set forth in claim 18 wherein said body includes an outer rim disposed adjacent said peripheral wall and about and engaging said support spokes.

23. A manifold assembly as set forth in claim 22 wherein said outer rim is spaced from said peripheral wall to define a groove therebetween.

24. A manifold assembly as set forth in claim 23 wherein said manifold top includes a skirt defining a cylinder extending downwardly to a bottom edge disposed in said groove between said outer rim and said peripheral wall for engaging and compressing a perimeter of said primary filter into said groove.

25. A manifold assembly as set forth in claim 24 including a plurality of retainers disposed on and spaced about said skirt in said chamber wherein said filters are disposed above said support spokes and disposed below said retainers for retaining said filters on said support spokes

26. A manifold assembly as set forth in claim 14 wherein said inlet ports are disposed on one of said manifold body and said manifold top.

27. A manifold assembly as set forth in claim 14 wherein said manifold top includes a peripheral brim extending over and engaging the exterior of said peripheral wall.

28. A manifold assembly as set forth in claim 27 including a snap together lock interconnecting said brim and said peripheral wall to removably connect and retain said manifold top on said manifold housing.

29. A manifold assembly as set forth in claim 28 wherein said manifold top includes a skirt defining a cylinder extending downwardly to a bottom edge skirt in said chamber and a plurality of alignment ribs disposed on said skirt and engaging said peripheral wall of said manifold housing to center said manifold top with said manifold body.

30. A manifold assembly as set forth in claim 1 wherein said primary filter is comprised of a plurality of filter layers.

31. A manifold assembly as set forth in claim 30 wherein each of said filter layers has a different porosity.

32. A manifold assembly for directing and filtering material from fluid flowing into a medical waste collection device, said assembly comprising;

a manifold body having a bottom,

a peripheral wall extending upwardly from said bottom,

an outlet port centrally disposed on said bottom to define an outlet flow axis,

said bottom being conical and sloping downwardly from said peripheral wall to said outlet port,

a manifold top connected to said peripheral wall to define a chamber in said manifold body,

a plurality of inlet ports disposed on one of said manifold body and said manifold top,

each of said inlet ports including an entrance tube disposed about an entry axis,

exit tube disposed on an exit axis transverse to said entry axis,

each of said entrance tubes including a directional wall normal to said inlet flow axis for turning the fluid from said entry axis and into said inlet exit tube along said exit axis,

a filter supported above said bottom to filter the material from the fluid in said fluid path,

a plurality of port caps for covering said plurality of inlet ports,

a plurality of connection straps connecting each of said port caps to said manifold housing for retaining each of said port caps to said manifold housing when not covering the associated inlet port,

an inlet check-valve disposed in each of said exit tubes of said inlet ports, and

an outlet check valve disposed in said outlet port for opening in response to a predetermined vacuum pressure applied to said outlet port from the medical waste collection device.

33. A manifold assembly for directing and filtering material from fluid flowing into a medical waste collection device, said assembly comprising:

a manifold housing defining a plurality of inlet ports and at least one outlet port in spaced relationship to said inlet ports to establish a fluid path;

a primary filter disposed in said fluid path between said inlet ports and said outlet port to filter the material from the fluid in said fluid path; and

an outlet check-valve disposed at said outlet port for retaining the fluid in said housing.