Multi-flow filtration system

• US RE44,972 E1
• Filed: 12/18/2012
• Issued: 07/01/2014
• Est. Priority Date: 10/10/2008
• Status: Expired due to Fees

• Current Assignee: Surgiquest, Inc. (Jefferies Financial Group, Inc.)
• Original Assignee: Surgiquest, Inc. (Jefferies Financial Group, Inc.)
• Inventors: Matula, Paul A., Mastri, Dominick, Parys, James R., Stearns, Ralph, Copley, Johnnie H., Estkowski, Christopher
• Primary Examiner(s): Insuk, Bullock
• Assistant Examiner(s): Bui, Dung H
• Application Number:
  US13/718,106
• Time in Patent Office: 560 Days
• Field of Search: 553/44, 553/501, 554/98, 553/42, 554/95, 553/43, 210/295, 210/323.1, 210/323.2, 210/435, 210/438
• US Class Current: 55/344
• CPC Class Codes: A61M 13/003 Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing
• CPC Class Codes: A61M 13/006 with gas recirculation
• CPC Class Codes: A61M 16/1055 bacterial
• CPC Class Codes: A61M 2205/125 with incorporated filters
• CPC Class Codes: B01D 2265/025 making use of ramps or cams
• CPC Class Codes: B01D 2265/05 Special adapters for the connection of filters or parts of filters
• CPC Class Codes: B01D 46/0008 Two or more filter elements not fluidly connected positioned in the same housing
• CPC Class Codes: B01D 46/0019 with multiple filtering elements, characterised by their mutual disposition
• CPC Class Codes: B01D 46/0086 Filter condition indicators
• CPC Class Codes: B01D 46/009 Identification of filter type or position thereof, e.g. by transponders or bar codes
• CPC Class Codes: B01D 46/106 Ring-shaped filtering elements
• CPC Class Codes: B01D 46/2411 Filter cartridges
• CPC Class Codes: B01D 46/444 by flow measuring
• CPC Class Codes: B01D 46/521 using folded, pleated material

Abstract

Disclosed is multi-flow filter cartridge assembly that includes an elongated housing that has axially opposed proximal and distal ends and defines an interior cavity and first, second and third flow paths which extend from the proximal end of the housing to the distal end. The cartridge assembly also includes first, second and third filter elements. The first filter element is disposed within the interior cavity of the housing and conditions fluid that traverses the first flow path from a first inlet port to a first outlet port. The second filter element is disposed within the interior cavity of the housing and conditions fluid that traverses the second flow path from a second inlet port to a second outlet port. Lastly, the third filter element is also disposed within the interior cavity of the housing and conditions fluid that traverses the third flow path from a third inlet port to a third outlet port. The first flow path is isolated from the second and third flow paths and the second flow path is isolated from the third flow path.

Claims

1. A filter cartridge assembly comprising:

i) an elongated housing having axially opposed proximal and distal ends, the housing defining an interior cavity, a central axis and first, second and third flow paths which extend from the proximal end of the housing to the distal end, wherein the housing includes a pair of coaxially positioned peripheral walls of the housing;

ii) a first pleated filter element disposed along the central axis and within the interior cavity of the housing for conditioning fluid traversing the first flow path from a first inlet port to a first outlet port;

iii) a second pleated filter element disposed along the central axis and within the interior cavity of the housing for conditioning fluid traversing the second flow path from a second inlet port to a second outlet port; and

iv) a third non-pleated filter element disposed along the central axis and within the interior cavity of the housing for conditioning fluid traversing the third flow path from a third inlet port to a third outlet port; and

wherein the first flow path is isolated from the second and third flow paths and the second flow path is isolated from the third flow path.

2. A filter cartridge assembly as recited in claim 1, wherein a portion of each of the second and third flow paths traverse axially between the peripheral walls of the housing.

3. A filter cartridge assembly as recited in claim 1, wherein the first filter element is radially a horizontally pleated filter and fluid is conditioned in the first flow path by traversing in a radially inward direction through the first filter element.

4. A filter cartridge assembly as recited in claim 1, wherein the second filter element is radially a horizontally pleated filter and fluid is conditioned in the second flow path by traversing in a radially outward direction through the second filter element.

5. A filter cartridge assembly as recited in claim 1, wherein the third filter element is disc a flat filter and fluid is conditioned in the second flow path by traversing axially through the third filter element.

6. A filter cartridge assembly as recited in claim 1, wherein the housing includes two longitudinal ribs which define two longitudinal channels in the interior cavity of the housing and the second flow path traverse one of the channels and the third flow path traverses the other channel.

7. A filter cartridge assembly as recited in claim 1, wherein the proximal end of the housing includes a connector element for a tri-lumen tube set.

8. A filter cartridge assembly as recited in claim 7, wherein the connector element includes the first inlet port and the second and third outlet ports.

9. A filter cartridge assembly as recited in claim 1, wherein the housing includes a cylindrical inner housing element positioned within the interior cavity of the housing and forming a first chamber for the first filter element.

10. A filter cartridge assembly as recited in claim 9, wherein the housing further includes a second inner housing element positioned within the interior cavity of the housing and forming a second chamber for the second filter element.

11. A filter cartridge assembly as recited in claim 1, wherein the first outlet port, the second inlet port and third inlet port are located at the distal end of the housing.

12. A filter cartridge assembly as recited in claim 11, wherein the first outlet port, the second inlet port and the third inlet port are coaxially arranged.

13. A filter cartridge assembly comprising:

i) an elongated housing having axially opposed proximal and distal ends, the housing defining first, second and third filter chambers and first, second and third flow paths which extend from the proximal end of the housing to the distal end;

ii) a first filter element disposed within the first filter chamber of the housing for conditioning fluid traversing the first flow path from a first inlet port to a first outlet port;

iii) a second filter element disposed within the second filter chamber of the housing for conditioning fluid traversing the second flow path from a second inlet port to a second outlet port; and

iv) a third filter element disposed within the third filter chamber of the housing for conditioning fluid traversing the third flow path from a third inlet port to a third outlet port; and

wherein the first flow path is isolated from the second and third flow paths and the second flow path is isolated from the third flow path wherein the first outlet port, the second inlet port and third inlet port are located at the distal end of the housing.

14. A filtration system for conditioning fluid received from three distinct fluid sources, comprising:

i) a controller including means for regulating and monitoring fluid flow in the filtration system, the controller defining an elongated receptacle;

ii) a socket assembly positioned at least partially within the elongated receptacle defined by the controller, the socket assembly including a locking element; and

iii) a filter cartridge assembly inserted into the socket assembly and secured in fluid communication with the controller by the locking element.

15. A filtration system as recited in claim 14, wherein the locking element includes a cam mechanism for engaging a lug extending from an exterior surface of the filter cartridge assembly.

16. A filtration system as recited in claim 14, wherein the filter cartridge assembly includes:

i) an elongated housing having axially opposed proximal and distal ends, the housing defining an interior cavity and first, second and third flow paths which extend from the proximal end of the housing to the distal end;

ii) a first filter element disposed within the interior cavity of the housing for conditioning fluid traversing the first flow path from a first inlet port to a first outlet port;

iii) a second filter element disposed within the interior cavity of the housing for conditioning fluid traversing the second flow path from a second inlet port to a second outlet port; and

iv) a third filter element disposed within the interior cavity of the housing for conditioning fluid traversing the third flow path from a third inlet port to a third outlet port; and

wherein the first flow path is isolated from the second and third flow paths and the second flow path is isolated from the third flow path.