Patent ID: 11901068
Assignee: FENWAL, INC.
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A method of washing cells using a cell washing system comprising a reusable processing machine having a touch screen, at least one pump and a panel, the cell washing system further comprising a disposable fluid circuit configured to be loaded on the panel, comprising:
permitting control of the reusable processing machine based on a hierarchy of authorizations comprising at least an administrator authorization and an operator authorization, the operator authorization having a lower level of authorization than the administrator authorization the operator authorization being assumed as a default;
receiving a password from the touch screen of the reusable processing machine;
comparing the received password to a list of passwords stored in a memory of the reusable processing machine to determine if the user has administrator authorization;
if the received password matches one of the passwords in the list, determining that the received password is associated with an administrator authorization;
applying a received command based on the match, the administrator authorization being the authorization that permits the command to be applied;
assuming as a default that the user has operator authorization unless the user attempts to enter the password, at which point it is determined if the user has the administrator authorization, the administrator authorization being the authorization that permits the received command to be applied;
receiving from the touch screen user input data for a plurality of protocols for storage in the memory of the reusable processing machine, each protocol comprising values for a set of process parameters for a wash procedure, wherein the user input data from the touch screen comprises a numeric value for a wash procedure parameter;
storing the numeric value of the wash procedure parameter as part of one of the protocols in the memory of the reusable processing machine;
receiving an identifier from a user via the touch screen;
determining if the identifier permits the user to modify the one of the protocols;
receiving a modification of the one of the protocols from the user via the touch screen if permitted, wherein the modification comprises a modification of the numeric value for the wash procedure parameter;
applying the one of the protocols with the modification of the numeric value of the wash procedure parameter for use with the reusable processing machine;
prompting an operator to load the disposable fluid circuit;
receiving the disposable fluid circuit on the panel of the reusable processing machine; and
operating the wash procedure using the applied one of the protocols to receive biological fluid from a biological fluid container and wash solution from a wash medium container in a separator device, to separate red blood cells from a waste solution comprising free hemoglobin, and to dispense the waste solution to a waste product container.