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

Claim 7:
8. A method of washing cells using a disposable fluid circuit and a reusable processing machine having a touch screen and at least one pump, comprising:
permitting control of the reusable processing machine based on a hierarchy of authorizations comprising at least two different levels of authorization comprising an administrator authorization and a non-administrator authorization, the non-administrator authorization having a lower level of authorization than the administrator authorization, wherein the administrator authorization permits the user to modify a setting;
determining a user has the non-administrator authorization unless the user enters a password associated with an administrator, at which point the method determines the user has an administrator authorization, wherein the determining comprises assuming as a default that the user has the non-administrator 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 user to modify the setting
receiving from a touch screen user input data for a plurality of protocols for storage in a 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 received from the touch screen comprises a numeric value for a wash procedure parameter between a minimum value and a maximum value for one of the process parameters of the protocol;
storing one of the plurality of protocols having the numeric value of the wash procedure parameter in the memory of the reusable processing machine;
receiving a password from a user via the touch screen of the reusable processing machine;
determining if the password is associated with an authorization for the user;
receiving a modification of the one of the plurality of protocols from the user via the touch screen, wherein the modification comprises a modification of the numeric value of the wash procedure parameter;
prompting an operator to load the disposable fluid circuit;
receiving the disposable fluid circuit on the reusable processing machine; and
processing blood using the one of the plurality of protocols comprising the wash procedure having the modification of the numeric value by receiving blood and a wash solution, separating red blood cells from a waste solution comprising free hemoglobin, and dispensing the waste solution to a waste product container.