PUMP MODULE METHOD FOR A MEDICAL FLUID DISPENSING SYSTEM
First Claim
1. A method for pumping fluid in a medical fluid dispensing system with a pump including a pump module having a pump body made of a non-compliant material, the pump body having first and second pump chambers formed therein, each having a first, open end and an opposite, closed end, with the pump module further comprising a fluid inlet selectively in fluid communication with the first and second pump chambers and a fluid outlet selectively in fluid communication with the first and second pump chambers, the pump module further comprising first and second pistons in the first and second pump chambers, respectively;
- and first and second linear actuators, the first linear actuator being mechanically coupled to the first piston, the second linear actuator being mechanically coupled to the second piston, the method comprising;
translating the first and second pistons with the corresponding linear actuator within the respective pump chambers toward and away from the closed end of the respective pump chambers;
operating the linear actuators independently of one another.
0 Assignments
0 Petitions
Accused Products
Abstract
A pump module is provided for use in a medical fluid dispensing system that includes a pump body made of a non-compliant material and first and second pump chambers formed in the body. Each of the chambers has a first, open end and an opposite, closed end. The pump module further includes first and second pistons in the first and second pump chambers, respectively. At least one fluid inlet and a fluid outlet are selectively in fluid communication with the first and second pump chambers. Each of the pistons extends through the open end of a respective one of the pump chambers, with each of the pistons being operably translatable within the pump chamber toward and away from the closed end of the chamber. The pistons are translatable independently of one another.
-
Citations
3 Claims
-
1. A method for pumping fluid in a medical fluid dispensing system with a pump including a pump module having a pump body made of a non-compliant material, the pump body having first and second pump chambers formed therein, each having a first, open end and an opposite, closed end, with the pump module further comprising a fluid inlet selectively in fluid communication with the first and second pump chambers and a fluid outlet selectively in fluid communication with the first and second pump chambers, the pump module further comprising first and second pistons in the first and second pump chambers, respectively;
- and first and second linear actuators, the first linear actuator being mechanically coupled to the first piston, the second linear actuator being mechanically coupled to the second piston, the method comprising;
translating the first and second pistons with the corresponding linear actuator within the respective pump chambers toward and away from the closed end of the respective pump chambers; operating the linear actuators independently of one another. - View Dependent Claims (2, 3)
- and first and second linear actuators, the first linear actuator being mechanically coupled to the first piston, the second linear actuator being mechanically coupled to the second piston, the method comprising;
Specification