Organizer frame for holding an array of flexible tubing in alignment with one or more peristaltic pump rotors

• US 5,460,493 A
• Filed: 11/17/1993
• Issued: 10/24/1995
• Est. Priority Date: 11/17/1993
• Status: Expired due to Term

• Current Assignee: Baxter International Inc.
• Original Assignee: Baxter International Inc.
• Inventors: Matsumoto, Tsuyoshi, Deniega, Jose C.
• Primary Examiner(s): Bertsch, Richard A.
• Assistant Examiner(s): Korytnyk, Peter G.
• Application Number:
  US08/153,755
• Time in Patent Office: 706 Days
• Field of Search: 417/475, 417/477 H, 417/477 A, 417/477 R, 604/174
• US Class Current: 417/477.2
• CPC Class Codes: A61M 1/3621 Extra-corporeal blood circuits single-needle circuits A61M1/30
• CPC Class Codes: A61M 1/36224 with sensing means or components thereof
• CPC Class Codes: A61M 1/36225 with blood pumping means or components thereof
• CPC Class Codes: A61M 1/362265 Details of valves
• CPC Class Codes: A61M 1/362266 Means for adding solutions or substances to the blood
• CPC Class Codes: A61M 2209/08 Supports for equipment
• CPC Class Codes: A61M 60/109 incorporated within extracorporeal blood circuits or systems
• 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 60/284 Linear peristaltic pumps
• CPC Class Codes: A61M 60/36 for specific blood treatment; for specific therapy
• CPC Class Codes: A61M 60/438 the force acting on the blood contacting member being mechanical
• CPC Class Codes: A61M 60/849 Disposable parts
• CPC Class Codes: A61M 60/853 the valve being formed by a flexible tube element which is clamped for restricting the flow
• CPC Class Codes: A61M 60/892 Active valves, i.e. actuated by an external force
• CPC Class Codes: F04B 43/1284 Means for pushing the backing-plate against the tubular flexible member
• CPC Class Codes: F04B 43/1292 Pumps specially adapted for several tubular flexible members

Abstract

A disposable set for a blood processing device comprises an array of flexible tubing and a frame that holds the flexible tubing array with at least two linear segments of the flexible tubing array presented for alignment with at least two axially aligned peristaltic pump rotors.

Claims

1. A disposable set for a blood processing device comprising an array of flexible tubing and a generally rectangular frame having means for holding the flexible tubing array with at least two linear segments of the flexible tubing array represented for alignment with at least two peristaltic pump rotors, said rotors being contained in a housing and extending upwardly through the top of said housing and being axially aligned with each other,

an outer cover and an inner cover located over the top of said housing,

said inner cover extending around said rotors and extending from said top of said housing toward said outer cover, said inner cover having channels in its periphery aligned with said rotors, whereby flexible tubing placed over said inner cover in said channels is aligned with said rotors, said inner cover being sized to closely interfit with said rectangular frame to place said tubing in registry with said rotors.

2. A set according to claim 1 wherein the frame also includes means for holding at least one segment of the flexible tubing array for alignment with a tube clamp while the other at least two segments are presented for alignment with the pump rotors.

3. Apparatus according to claim 1 wherein said holding means of said frame comprises indentations aligned with said channels in said inner cover.

4. A set according to claim 3 wherein said frame is provided with an inwardly extending lip engageable in a mating recess in said inner cover.

5. A disposable set for use in conjunction with a peristaltic pump assembly that includes a housing having a top opening, a peristaltic rotor pumping module carrying a plurality of rotatable rollers spaced around its periphery, said rotor being mounted for rotation on an axle and having a central plane normal to said axle, a motor for driving said rotor operatively connected to said rotor, wherein said axle is mounted parallel to the top of said housing, said rotor extending through the top of said housing, said housing further having a cover pivotally mounted thereon, said cover carrying a concave race in alignment with and engageable by said rollers to activate peristaltic liquid flow in a flexible conduit positioned between said rotor and said race, said cover being pivotable from an operative position wherein said race engages said rollers to an inoperative position wherein said rotor is exposed for loading and unloading a conduit between said rotor and said race, said disposable set comprising a plurality of flexible conduits and an organizer frame adapted to fit under said cover and being provided with indentations for receiving and positioning at least one segment of said flexible fluid flow conduits and for aligning said segment with said pumping module, and means on said housing for positioning said frame thereon so that said conduit is aligned with said rotor said means including indentations on opposite sides of said rotor to assist in alignment of said conduit with said rotor.

6. A disposable set according to claim 5 wherein said means for positioning comprises a shoulder provided on said housing engageable by said organizer frame.

7. A set according to claim 6 wherein said organizer frame is provided with an inwardly extending lip engageable in a mating recess in said shoulder.

8. A disposable set according to claim 5 comprising means for separating blood received from a donor into constituents, including:

means for separating at least one blood constituent from whole blood;

a reservoir for containing blood;

a single venepuncture needle for supplying whole blood to the reservoir during a whole blood collection cycle and reinfusing blood from the reservoir into the donor during a reinfusion cycle;

a plurality of flexible blood flow conduits for conveying whole blood and blood constituents between the donor, said reservoir and said means for separating blood

said organizer frame engaging a plurality conduit segments and aligning them with a plurality of axially aligned peristaltic pumping modules for engaging said conduits and for activating the flow of blood through said conduits.

9. A set according to claim 5 wherein said frame is also provided with indentations for receiving and positioning a segment of a flexible fluid flow conduit and for aligning said segment with a clamp for closing said conduit said clamp being positioned adjacent to the pumping module assembly.

10. Apparatus according to claim 5 further comprising an inner cover positioned on the top of said housing and extending around said rotor, said inner cover having channels in its periphery aligned with the central plane of said rotor, whereby a flexible conduit placed over said inner cover in said channels is aligned with said rotor, said inner cover being sized to closely interfit with said frame to place said conduit in registry with said pumping module.