A surgical fluid management system includes a console and a cassette for delivering fluids to a surgical site. The console has a pump rotor and a pressure-sensing membrane. The cassette has a cassette housing, a flexible fluid delivery tube in the housing. The flexible fluid delivery tube has a lumen configured to interface with the pump rotor and to deliver a flow of fluid from a fluid source as the rotor is rotated. A pressure-transmitting membrane is located in a wall of the cassette housing and in fluid communication with said fluid delivery lumen. The pressure-transmitting membrane flexes outwardly in response to a positive pressure in the lumen and flexes inwardly in response to a negative pressure in the lumen. The pressure-transmitting membrane detachably adheres to or presses against the pressure-sensing membrane to cause the pressure-sensing membrane to move in response to pressure changes in the flexible fluid delivery tube.

A surgical fluid management system includes a console and a cassette for delivering fluids to a surgical site. The console has a pump rotor and a pressure-sensing membrane. The cassette has a cassette housing, a flexible fluid delivery tube in the housing. The flexible fluid delivery tube has a lumen configured to interface with the pump rotor and to deliver a flow of fluid from a fluid source as the rotor is rotated. A pressure-transmitting membrane is located in a wall of the cassette housing and in fluid communication with said fluid delivery lumen. The pressure-transmitting membrane flexes outwardly in response to a positive pressure in the lumen and flexes inwardly in response to a negative pressure in the lumen. The pressure-transmitting membrane detachably adheres to or presses against the pressure-sensing membrane to cause the pressure-sensing membrane to move in response to pressure changes in the flexible fluid delivery tube.

Various exemplary methods, systems, and devices for injection pump needle mechanics are provided.

Various exemplary methods, systems, and devices for injection pump needle mechanics are provided.

A fluid delivery system is disclosed which comprises at least one first supply station for supplying a first fluid and at least one second supply station for supplying a second fluid different from the first fluid. The fluid delivery system further comprises a pressurizing unit for pressurizing the first and second fluids, said pressurizing unit comprising first and second pump modules, and each pump module comprising a chamber and a piston provided with a plunger to define first and second variable-volume sub-chambers. The fluid delivery system further comprises first and second inlet fluid circuits, first and second outlet fluid circuits, and a first recirculation fluid pathway fluidically connecting the first and second variable-volume sub-chambers of a pump module. Moreover, a first actuator is associated to said first recirculation fluid pathway for managing the fluid passage in both directions between said first and second variable-volume sub-chambers of said pump module. Methods of operating the fluid delivery system are disclosed too.

A drug-delivery device is provided including a drug reservoir configured to contain a fluid drug, a needle cartridge comprising a plurality of needle assemblies, a drive member, a pump, one or more springs, a loading button and a dosing button. The device is configured to use work done by the user in actuating the loading button to load the one or more springs. When the user actuates the dosing button after actuating the loading button, the device is configured to (i) release the one or more loaded springs to operate the drive member to drive a needle assembly that is in operational alignment with the drive member from a retracted position to an injection position, (ii) drive the pump to pump fluid drug from the drug reservoir through the driven needle assembly, and (iii) retract the driven needle assembly from the injection position to the retracted position.

A drug-delivery device is provided including a drug reservoir configured to contain a fluid drug, a needle cartridge comprising a plurality of needle assemblies, a drive member, a pump, one or more springs, a loading button and a dosing button. The device is configured to use work done by the user in actuating the loading button to load the one or more springs. When the user actuates the dosing button after actuating the loading button, the device is configured to (i) release the one or more loaded springs to operate the drive member to drive a needle assembly that is in operational alignment with the drive member from a retracted position to an injection position, (ii) drive the pump to pump fluid drug from the drug reservoir through the driven needle assembly, and (iii) retract the driven needle assembly from the injection position to the retracted position.

System and methods are provided for control of a therapeutic delivery system. A monitoring device includes a sensor for measuring a biometric parameter of a patient. A feature extractor generates a set of features for the patient, each of the set of features being associated with one of the patient and the therapeutic delivery system. A predictive model predicts a future value for the biometric parameter at a given time according to the set of features. A therapeutic delivery system controller determines a desired dosage for the therapeutic according to the predicted future value for the patient parameter.

System and methods are provided for control of a therapeutic delivery system. A monitoring device includes a sensor for measuring a biometric parameter of a patient. A feature extractor generates a set of features for the patient, each of the set of features being associated with one of the patient and the therapeutic delivery system. A predictive model predicts a future value for the biometric parameter at a given time according to the set of features. A therapeutic delivery system controller determines a desired dosage for the therapeutic according to the predicted future value for the patient parameter.

The present disclosure relates to a liquid medicine injection device including a patch portion to which a sensor portion configured to measure blood glucose is detachable and in which an injection portion configured to inject a liquid medicine into the body of a user is installed, and a stamping portion on which the patch portion is mounted and including a first needle connectable to the sensor portion, wherein the stamping portion transmits power to the patch portion so that the first needle and a second needle, which is connected to the injection portion, are together inserted into the skin of the user, and the sensor portion and the injection portion are installed in a single device so that the convenience of use is improved when the liquid medicine injection device is attached to the skin of the user.