| 主权项 |
1. A portable infusion pump system, comprising:
a pump device including: a pump housing that defines a space to receive a medicine, and a drive system to dispense the medicine from the pump device when the medicine is received in the space of the pump housing; and a controller device electrically connectable to the pump device so as to control dispensation of the medicine from the pump device, the controller device comprising: a battery pack including a voltage output terminal, a return terminal, a third terminal, and at least one rechargeable battery cell that is coupled to the voltage output terminal so as to provide electrical energy to at least one of a component of the controller device and the drive system of the pump device; a monitor circuit that is configured to sense a voltage of the at least one rechargeable battery cell; a first resistor coupled between the at least one rechargeable battery cell and a voltage sense terminal of the monitor circuit; a second resistor coupled between the voltage sense terminal of the monitor circuit and the third terminal of the battery pack; wherein, in response to a user-initiated detachment of the pump device from the controller device, the monitor circuit is configured to cause the battery pack to act according to a low power mode independent of the voltage of the at least one rechargeable battery cell; wherein, in response to the user-initiated detachment of the pump device from the controller device, a low-resistance connection is provided between the third terminal of the battery pack and the return terminal of the battery pack. |
