Filter and frame apparatus and method of use

• US 10,195,334 B2
• Filed: 03/16/2016
• Issued: 02/05/2019
• Est. Priority Date: 12/29/2011
• Status: Active Grant

• Current Assignee: Delcath Systems, Inc.
• Original Assignee: Delcath Systems, Inc.
• Inventors: Appling, William M., Engelhard, Stephen N., Barton, Matthew G.
• Primary Examiner(s): Kurtz, Benjamin M
• Application Number:
  US15/071,896
• Publication Number:
  US 20160193401A1
• Time in Patent Office: 1,056 Days
• Field of Search: None
• CPC Class Codes: A61M 1/3615 Cleaning blood contaminated by local chemotherapy of a body part temporarily isolated from the blood circuit
• CPC Class Codes: A61M 1/3626 Gas bubble detectors
• CPC Class Codes: A61M 1/3639 Blood pressure control, pressure transducers specially adapted therefor
• CPC Class Codes: A61M 1/3679 by absorption A61M1/3675 takes precedence
• CPC Class Codes: A61M 2202/0057 retained by adsorption
• CPC Class Codes: A61M 2202/0413 Blood
• CPC Class Codes: B01D 24/002 with multiple filtering elements in parallel connection
• CPC Class Codes: B01D 25/002 Clamping devices B01D25/12 and subgroups take precedence
• CPC Class Codes: B01D 29/52 in parallel connection
• CPC Class Codes: B01D 35/306 Filter mounting adapter
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

Provided is a filter apparatus, comprising two or more filter cartridges having a first end with an inlet and screen and a second end with an outlet and screen, and walls to contain a filter media held in a housing for holding the two or more filter cartridges in about the same orientation, and an attachment clamp connected to the housing. Also provided is a housing for holding two or more filter cartridges in about the same orientation and a method of using the filter apparatus and housing.

Claims

1. A method of setting up a filter apparatus for a hemo filtration therapy, comprising:

attaching a filter apparatus to an IV pole, wherein the filter apparatus comprises two or more filter cartridges each having a first end with an inlet and a first screen and a second end with an outlet and a second screen, and walls comprising a cartridge tube that is transparent and comprises a filter media;

a housing comprising an upper plate and a lower plate and configured to hold the two or more filter cartridges in about the same orientation, the upper plate and the lower plate each defining two or more openings to which the two or more filter cartridges are rotatably coupled and wherein the two or more filter cartridges extend through the two or more openings of the upper plate and the lower plate, and

rotating the two or more filter cartridges to observe if there are lodged air bubbles in the filter media.

2. The method of claim 1, wherein the upper plate and lower plate are connected to each other.

3. The method of claim 1, wherein the attaching is by clamping.

4. The method of claim 1, further comprising connecting the two or more filter cartridges to a pump, saline supply bag, or flow rate monitor with a tubing.

5. The method of claim 1, further comprising priming the filter cartridges.

6. The method of claim 1, further comprising flushing the filter cartridge with saline.

7. The method of claim 6, wherein flushing the filter cartridge with saline comprises filing the filter cartridge with saline from the bottom.

8. The method of claim 1, further comprising tapping the filter cartridge walls to free a lodged air bubble.

9. The method of claim 1, further comprising forming a connection between the two or more filter cartridges and a supply catheter and a venous return catheter.

10. The method of claim 1, wherein the upper plate and lower plate are oriented substantially parallel to each other.

11. The method of claim 1, wherein the filter apparatus further comprises an attachment clamp connected to the housing.

12. The method of claim 1, wherein the filter media comprises activated carbon.

13. The method of claim 12, wherein the filter media is hydrogel coated activated carbon.