FILTERING AND PUMPING APPARATUS FOR MEDICAL USE

• US 20130032525A1
• Filed: 04/20/2011
• Published: 02/07/2013
• Est. Priority Date: 04/21/2010
• Status: Abandoned Application

• Current Assignee: Rand SRL
• Original Assignee: Rand SRL
• Inventors: Galavotti, Daniele, Ronco, Claudio
• Application Number:
  US13/642,368
• Publication Number:
  US 20130032525A1
• Time in Patent Office: Days
• US Class Current: 210/251
• CPC Class Codes: A61M 1/342 Adding solutions to the blood, e.g. substitution solutions for preventing coagulation A61M1/3672
• CPC Class Codes: A61M 1/3427 back through the membrane, e.g. by inverted trans-membrane pressure [TMP]
• CPC Class Codes: A61M 2209/088 on the body
• CPC Class Codes: A61M 60/113 in other functional devices, e.g. dialysers or heart-lung machines
• CPC Class Codes: A61M 60/279 Peristaltic pumps, e.g. roller pumps
• CPC Class Codes: A61M 60/37 Haemodialysis, haemofiltration or diafiltration
• CPC Class Codes: A61M 60/849 Disposable parts

Abstract

The filtering and pumping apparatus (1; 100; 200) for medical use comprises: feed lines (13, 15, 18, 20, 22, 24, 26) for feeding in and out a liquid to be pumped and filtered; a pumping unit (10, 11, 12) for pumping the fluid in said lines (13, 15, 18, 20, 22, 24, 26); a filter unit (4) for filtering said liquid; said lines V, said pumping unit (10, 11, 12), said filter unit (4) being associated together into a single compact body (2).

Claims

1. A filtering and pumping apparatus for medical use comprising:

Feeding lines and removal lines of a fluid to be pumped and filtered;

A pumping unit to pump said fluid along said lines;

A filter unit to filter said fluid;

wherein said lines, said pumping unit, said filter unit are reciprocally associated in a single compact body.

2. An apparatus according to claim 1, wherein said pumping unit and said filter unit are made of biocompatible and substantially similar materials.

3. An apparatus according to claim 1, wherein said compact body has a flattened shape having a longitudinal axis and defines inside itself a housing chamber for said filter unit and at least a first face and a second face reciprocally opposed.

4. An apparatus according to claim 3, wherein said first face and said second face are substantially planar and reciprocally parallel.

5. An apparatus according to claim 3, wherein said first face and said second face are substantially planar and reciprocally parallel.

6. An apparatus according to claim 3, wherein said filter unit comprises filter comprising hollow filtering fibers which are reciprocally joined and have respective first inlet ends and second outlet ends of said fluid which are open and which flow into a correspondent inlet portion and outlet portion of said chamber.

7. An apparatus according to claim 6, wherein said first inlet ends and said second outlet ends are joined by joining means.

8. An apparatus according to claim 7, wherein said joining means comprise respective blocks inside which said first inlet ends and said second outlet ends are blocked and which divide said inlet portions and outlet portions of said chamber into first semi-portions defined upstream of said blocks and second semi-portions defined downstream of said blocks.

9. An apparatus according to claim 8, wherein said pumping unit comprises at least a fluid circulation pump interposed between a feeding line from the outside and a connecting line with said first semi-portion of the inlet portion.

10. An apparatus according to claim 8, wherein said pumping unit comprises a circulation pump designed to circulate in counter current a second fluid in respect of said first fluid, said pump being interposed between an outlet line from said second semi-portion of said inlet portion and a line flowing away toward the outside.

11. An apparatus according to claim 8, wherein said pumping unit comprises a circulation pump of an additional fluid replacing the aqueous fraction of said first fluid.

12. An apparatus according to claim 1, wherein said apparatus can be associated with an item of clothing wearable by a patient.