Extracorporeal blood processing methods and apparatus

• US 5,941,842 A
• Filed: 10/24/1997
• Issued: 08/24/1999
• Est. Priority Date: 06/07/1995
• Status: Expired due to Term

• Current Assignee: Terumo BCT, Inc. (Terumo Corporation)
• Original Assignee: COBE Laboratories Incorporated (Terumo Corporation)
• Inventors: Bainbridge, Marlene Adele, Wahl, Terry R., Steele, Chad C., Garrison, Denise C.
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): O YONG, KI
• Application Number:
  US08/959,534
• Time in Patent Office: 669 Days
• Field of Search: 604/4-6, 210/781, 210/782
• US Class Current: 604/4.01
• 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 1/36226 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 1/362264 the filter being a blood filter
• 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 1/38 Removing constituents from donor blood and storing or returning remainder to body , e.g. for transfusion
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• 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 5/0428 : with flexible receptacles
• 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 variety of novel components and which may be operated in accordance with a variety of novel methodologies. For instance, the system includes a graphical operator interface which directs the operator through various aspects of the apheresis procedure. Moreover, the system also includes a variety of features relating to loading a blood processing vessel into a blood processing channel and removing the same after completion of the procedure. Furthermore, the system also includes a variety of features relating to utilizing a blood priming of at least portions of the apheresis system in preparation for the procedure. In addition, the system includes a variety of features enhancing the performance of the apheresis system, including the interrelationship between the blood processing vessel and the blood processing vessel and the utilization of high packing factors for the procedure.

Claims

1. A method for processing blood in an apheresis system comprising a blood component separation device and at least one blood passageway, said system being operated by an operator, said method comprising the steps of:

introducing blood into said at least one blood passageway;

separating said blood into a plurality of blood component types;

removing at least one of said blood component types from said at least one blood passageway;

said operator identifying an an error, said error being an undesirable condition in a donor/patient or blood component or apheresis system wherein said error has multiple error correction procedures;

said operator instructing said apheresis system to correct said condition without identifying a specific error correction procedure from said multiple error correction procedures to initiate a preprogrammed running of only one of said multiple error correction procedures, wherein said apheresis system is preprogrammed with only said one of said multiple error correction procedures to correct said identified error.

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

said apheresis system further comprises a blood processing control device which operatively interfaces with said blood component separation device and wherein said instructing step comprises programming said control device.

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

said identifying step comprises observing at least one factor which is indicative of said existence of said first condition.

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

said apheresis system further comprises a computer, said identifying step comprising the step of inputting said existence of said first condition to said computer.

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

said apheresis system further comprises a display, wherein said identifying step comprises touching a predetermined area of said display which corresponds to said first condition.

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

said predetermined area of said display comprises a graphical representation associated with said first condition.

7. A method, as claimed in claim 6, wherein:

said graphical representation comprises text.

8. A method, as claimed in claim 5, wherein:

said predetermined area is a pictorial of a button.

9. A method, as claimed in claim 1, wherein said apheresis system further comprises a display, said method further comprising the step of:

presenting a first screen on said display, said presenting step comprising displaying a first graphical representation associated with said first condition on said display and displaying a second graphical representation associated with a second condition associated with said apheresis system.

10. A method, as claimed in claim 9, further comprising the step of:

observing said existence of said first condition, said method further comprising the step of providing input to said apheresis system after said observing step, said presenting step being in response to said providing input step.

11. A method, as claimed in claim 9, wherein:

said presenting step is in response to a sensing of said existence of said first condition by said apheresis system.

12. A method, as claimed in claim 1, wherein said at least one blood passageway comprises a blood processing channel and a blood processing vessel, said method further comprising the step of:

disposing said blood processing vessel within said blood processing channel, wherein said introducing step comprises introducing said blood into said blood processing vessel.