Disposable for an apheresis system with a contoured support

• US 5,750,025 A
• Filed: 06/07/1995
• Issued: 05/12/1998
• Est. Priority Date: 06/07/1995
• Status: Expired due to Term

• Current Assignee: Terumo BCT, Inc. (Terumo Corporation)
• Original Assignee: Cobe Cardiovascular Incorporated (LivaNova Plc)
• Inventors: Dolecek, Victor D., Holmes, Brian M., Blakeslee, Jeffrey J.
• Primary Examiner(s): Kim, John
• Application Number:
  US08/482,285
• Time in Patent Office: 1,070 Days
• Field of Search: 210/360.1, 210/361, 210/369, 210/372, 210/373, 210/374, 210/375, 210/376, 210/398, 210/399, 210/782, 210/494, 494/40, 494/56, 494/59
• US Class Current: 210/361
• CPC Class Codes: A61M 1/36222 Details related to the interface between cassette and machine
• 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 1/36226 Constructional details of cassettes, e.g. specific details on material or shape
• CPC Class Codes: A61M 1/362262 Details of incorporated reservoirs
• CPC Class Codes: A61M 1/362263 Details of incorporated filters
• 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 1/3624 Level detectors; Level control
• CPC Class Codes: A61M 1/3639 Blood pressure control, pressure transducers specially adapted therefor
• CPC Class Codes: A61M 1/3641 Pressure isolators
• CPC Class Codes: A61M 1/3652 using gas, e.g. air
• CPC Class Codes: A61M 1/3692 Washing or rinsing blood or blood constituents
• CPC Class Codes: A61M 1/3693 using separation based on different densities of components, e.g. centrifuging
• CPC Class Codes: A61M 1/3696 with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation
• CPC Class Codes: A61M 2205/123 with incorporated reservoirs
• CPC Class Codes: A61M 2205/125 with incorporated filters
• CPC Class Codes: A61M 2205/128 with incorporated valves
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: B04B 2005/045 : having annular separation channels
• CPC Class Codes: B04B 5/0442 : with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation
• CPC Class Codes: B04B 9/08 : Arrangement or disposition of transmission gearing for solid bowl screw centrifuges B04B1/2016; Couplings; Brakes

Abstract

An extracorporeal blood processing system is disclosed which includes a disposable for an apheresis system. The disposable can include a blood processing vessel and a contoured support. The blood processing vessel includes sidewalls to define the vessel and a blood inlet port and a blood component outlet port. The support is provided proximate to the blood component outlet port and exteriorly relative to the fluid-containing volume of the blood processing vessel. The support may be contoured to direct the desired blood component types(s) toward the blood component outlet port and is in an overlapping relation with the exterior surface of the blood processing vessel. The support and part of an adjacent channel wall collectively define a generally funnel-shaped collect well that collects blood components flowing thereby. The support may be pivotally or hingedly interconnected with the exterior of the blood processing vessel to facilitate loading of the blood processing vessel and/or to allow the support to move not a predetermined position upon pressurization of the blood processing vessel to perform the desired function during an apheresis procedure.

Claims

1. A disposable for an apheresis system, said apheresis system comprising a blood processing channel, said disposable comprising:

(a) a blood processing vessel positionable in said channel, said blood processing vessel comprising;

(i) first and second interconnected sidewalls defining said blood processing vessel;

(ii) a blood inlet port; and

(iii) a platelet outlet port interfacing with one of said first and second sidewalls;

said disposable further comprising;

(b) a contoured support disposed proximate to and extending from said platelet outlet port; and

(c) means for movably attaching said contoured support to said one of said first and second sidewalls on an exterior surface of said blood processing vessel in overlapping relation with said exterior surface of said blood processing vessel.

2. A disposable, as claimed in claim 1, wherein:

said exterior surface of said blood processing vessel defined by said first and second sidewalls is substantially planar, said contoured support providing a discontinuity on said exterior surface defined by said one of said first and second sidewalls.

3. A disposable, as claimed in claim 1, wherein:

said means for movably attaching comprises a hinge means for movably interconnecting said contoured support with said one of said first and second sidewalls of said blood processing vessel.

4. A disposable, as claimed in claim 1, wherein:

said contoured support is generally triangularly-shaped.

5. A disposable, as claimed in claim 1, wherein:

said contoured support comprises a surface having first and second sections disposed at different angular positions relative to one another wherein said surface interfaces with said one of said first and second sidewalls of said blood processing vessel in said overlapping relation.

6. A disposable, as claimed in claim 5, wherein:

said surface of said contoured support having a contoured portion to direct platelets toward said platelet outlet port.

7. A disposable, as claimed in claim 1, wherein:

said contoured support comprises means for directing platelets toward said platelet outlet port.

8. A disposable, as claimed in claim 1, wherein:

said contoured support is disposed vertically above said platelet outlet port.

9. A disposable, as claimed in claim 1, wherein:

said platelet outlet port comprises a platelet outlet tube, said contoured support further comprising a platelet outlet tube notch.

10. A disposable, as claimed in claim 1, wherein:

said contoured support comprises a first surface which extends upwardly from said platelet outlet port and away from said one of said first and second sidewalls, a second surface which extends toward said one of said first and second sidewalls, and a third surface which overlies said exterior surface in said overlapping relationship said third surface extending toward said first surface and intersecting said first surface.

11. A disposable for an apheresis system, said apheresis system comprising a blood processing channel, said channel having an outer channel wall partially defining a platelet collection well, said disposable comprising:

(a) a blood processing vessel positionable in said channel, said blood processing vessel comprising;

(i) first and second interconnected sidewalls defining said blood processing vessel;

(ii) a blood inlet port; and

(iii) a platelet outlet port interfacing with one of said first and second sidewalls;

said disposable further comprising;

(b) a contoured support disposed proximate to and extending from said platelet outlet port; and

(c) means for movably attaching said contoured support to said one of said first and second sidewalls on an exterior surface of said blood processing vessel in a partially overlapping relation with said exterior surface of said blood processing vessel, and said contoured support partially defining said platelet collection well, wherein a surface of said contoured support has a contoured portion to direct platelets toward said platelet outlet port.

12. A disposable, as claimed in claim 11, wherein:

said platelet collection well comprises a recessed portion within said outer channel wall.

13. A disposable, as claimed in claim 12, wherein:

said platelet collection well is funnel shaped.

14. A disposable, as claimed in claim 12, wherein:

said contoured support is adapted to fit within said recessed portion of said outer channel wall.

15. A disposable, as claimed in claim 11, wherein:

said means for movably attaching comprises a hinge means interconnecting said contoured support with one of said first and second sidewalls of said blood processing vessel.