Automated medical liquid filling system and method

摘要

A medical liquid filling system and associated methods are provided, the system comprising a disposable and a drive system. The disposable includes a tubular member and a piston slidably disposed within the tubular member for retraction and advancement within at least a first portion of the tubular member. The disposable may include a seal member for sealing the first portion of the tubular member and may be interconnected to the piston for co-movement therewith. The drive system may include a piston drive member selectively interconnectable to the piston for driven advancement and retraction of the piston within the tubular member. The drive system may be interconnected to a controller, which may be operable to automate or semi-automate various filling operations. A user interface may be interconnected to the controller for providing input of various system operation parameters, which may be communicated to the controller to facilitate automated or semi-automated operation of the filling system.

主权项

1. A drive system, interconnectable to a disposable that includes a tubular member and a piston slidably disposed in the tubular member, for automated filling of at least one interconnectable receptacle with a medical liquid, comprising:
a piston drive member interconnectable to a piston of a disposable for driven advancement and retraction of the piston within a tubular member of the disposable; a drive motor interconnected to the piston drive member for advancement and retraction of the piston drive member, wherein said drive motor includes a drive motor monitor that provides an output signal indicative of a force output of said drive motor; a position sensor that provides another output signal indicative of sensed degrees of movement of said piston drive member; and, a controller for utilizing one of the output signal and the another output signal to determine a primary control parameter for use in controlling the drive motor to maintain a pressure within said tubular member within a predetermined pressure range, and wherein the controller utilizes the other one of the output signal and the another output signal to determine a secondary control parameter and to determine when said secondary control parameter is outside of a predetermined range.