AUTOMATED MEDICAL LIQUID FILLING SYSTEM AND METHOD
First Claim
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 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.
1 Assignment
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Accused Products
Abstract
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.
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Citations
20 Claims
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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:
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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 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification