Drug delivery system with a delay mechanism
A medicament delivery system, including a medicament container and a delay mechanism that is activated prior to completion of medicament delivery from the medicament container. The delay mechanism automatically activates a subsystem or initiates an operation subsequent to completion of medicament delivery.
1. A method of delivering a medicament, the method comprising:
receiving an activation command from depression of an activation button;
in response to receiving the activation command, releasing a biased sliding bracket that travels and releases an ejection mechanism to eject the medicament from a container;
subsequent to ejecting a portion of the medicament from the container and prior to ejecting substantially all of the medicament from the container, activating a delay mechanism;
subsequent to ejecting substantially all of the medicament from the container and a predetermined time delay after activation of the delay mechanism, automatically activating an end-of-dose indicator and automatically activating a needle safety mechanism;
wherein the sliding bracket also opens a valve.
2. The method according to claim 1 , wherein the ejection mechanism comprises a biased plunger.
3. The method according to claim 1 , wherein the sliding bracket also triggers insertion of a patient needle.
4. A method of delivering a medicament, the method comprising:
receiving an activation command from depression of an activation button;
in response to receiving the activation command, releasing a biased sliding bracket to travel a predetermined distance and subsequently release an ejection mechanism to eject the medicament from a container;
subsequent to ejecting a portion of the medicament from the container and prior to ejecting substantially all of the medicament from the container, activating a delay mechanism;
subsequent to ejecting substantially all of the medicament from the container and a predetermined time delay after activation of the delay mechanism, automatically initiating an end-of-dose indication and needle shielding.
5. A method of delivering a medicament, the method comprising:
receiving an activation command;
in response to receiving the activation command, releasing an ejection mechanism to eject the medicament from a container;
subsequent to ejecting a portion of the medicament from the container and prior to ejecting substantially all of the medicament from the container, activating a delay mechanism;
subsequent to ejecting substantially all of the medicament from the container and a predetermined time delay after activation of the delay mechanism, automatically initiating needle shielding, and closure of a valve disposed between the container and a patient needle.
6. A method of delivering a medicament, the method comprising:
receiving an activation command from depression of an activation button;
in response to receiving the activation command, releasing a plunger to travel in a first direction to eject the medicament from a container;
subsequent to ejecting a portion of the medicament from the container and prior to ejecting substantially all of the medicament from the container, activating a delay mechanism;
subsequent to ejecting substantially all of the medicament from the container and a predetermined time delay after activation of the delay mechanism, automatically activating an end-of-dose indicator and automatically activating a needle safety mechanism to withdraw a needle in a second direction not parallel to the first direction.
7. A method of delivering a medicament, the method comprising:
receiving an activation command from depression of an activation button;
in response to receiving the activation command, triggering insertion of a patient needle in a first direction and releasing a plunger to travel in a second direction not parallel to the first direction to eject the medicament from a container;
subsequent to ejecting a portion of the medicament from the container and prior to ejecting substantially all of the medicament from the container, activating a delay mechanism;
subsequent to ejecting substantially all of the medicament from the container and a predetermined time delay after activation of the delay mechanism, automatically activating an end-of-dose indicator and automatically activating a needle safety mechanism.
8. A method of delivering a medicament, the method comprising:
receiving an activation command from depression of an activation button;
in response to receiving the activation command, releasing a sliding bracket biased by a first biasing member to travel and release an ejection mechanism biased by a second biasing member to eject the medicament from a container;
subsequent to ejecting a portion of the medicament from the container and prior to ejecting substantially all of the medicament from the container, activating a delay mechanism;
subsequent to ejecting substantially all of the medicament from the container and a predetermined time delay after activation of the delay mechanism, automatically activating an end-of-dose indicator and automatically activating a needle safety mechanism.
9. A method of delivering a medicament, the method comprising:
receiving an activation command from depression of an activation button;
in response to receiving the activation command, releasing a sliding bracket biased by a first biasing member to travel and release a needle biased by a second biasing member to displace the needle;
subsequent to ejecting a portion of the medicament from a container and prior to ejecting substantially all of the medicament from the container, activating a delay mechanism;
subsequent to ejecting substantially all of the medicament from the container and a predetermined time delay after activation of the delay mechanism, automatically activating an end-of-dose indicator and automatically activating a needle safety mechanism.