Motorized drug delivery device with charging safety feature

• US 10,384,010 B2
• Filed: 12/16/2014
• Issued: 08/20/2019
• Est. Priority Date: 12/17/2013
• Status: Active Grant

• Current Assignee: Novo Nordisk A/S
• Original Assignee: Novo Nordisk A/S
• Inventors: Grubbe, Mikkel Schouenborg, Moeller, Mads, Andersen, Carsten Schau, Soerensen, Thomas, Hoeholt, Jesper, Mews, Steffen, Brockmeier, Pete, Larsen, Bjoern Gullak
• Primary Examiner(s): Vu, Quynh-Nhu H.
• Application Number:
  US15/104,469
• Publication Number:
  US 20160331901A1
• Time in Patent Office: 1,708 Days
• CPC Class Codes: A61M 2005/2073 preventing premature release, e.g. by making use of a safety lock
• CPC Class Codes: A61M 2005/2093 including concentration setting means
• CPC Class Codes: A61M 2005/3126 Specific display means related to dosing
• CPC Class Codes: A61M 2005/31588 electrically driven
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/276 preventing unwanted use
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8237 Charging means
• CPC Class Codes: A61M 5/20 Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically A61M5/142 , A61M5/46 take precedence; hypodermic projectiles F42B12/54
• CPC Class Codes: A61M 5/2053 Media being expelled from injector by pressurised fluid or vacuum for infusion A61M5/145, A61M5/155
• CPC Class Codes: A61M 5/24 Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic ampoules or carpules A61J1/06
• CPC Class Codes: A61M 5/31546 Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons
• CPC Class Codes: A61M 5/31576 Constructional features or modes of drive mechanisms for piston rods

Abstract

Drug delivery device adapted to receive a drug-filled cartridge comprises a piston drive member for expelling a dose of drug from a loaded cartridge, a motor for driving the piston drive member, a rechargeable electric power source, an electrical connector allowing an external connector of a power source to be connected for recharging the power source, and a controller for controlling operation of the motor. The controller is adapted to detect a condition indicative of an external power source being connected to the electrical connector and subsequently disable the expelling assembly to thereby prevent that drug can be expelled from a loaded cartridge when an external power source has been connected to the electrical connector.

Claims

1. Drug delivery device, comprising:

a drug-filled cartridge, or a compartment adapted to receive the drug-filled cartridge, the drug-filled cartridge comprising a body portion, an axially displaceable piston, and a distal outlet portion adapted to be arranged in fluid communication with a flow conduit,

an expelling assembly comprising;

a rechargeable electric power source,

an electrical connector allowing an external connector of an external power source to be connected for recharging the power source,

an axially displaceable piston drive member adapted to engage the piston of the drug-filled cartridge,

a motor for driving the piston drive member in a distal direction to thereby expel drug from the drug-filled cartridge, and

electronic controller for controlling the motor,

wherein the electronic controller is adapted to detect an indicative condition of the external power source being connected to the electrical connector and subsequently disable the expelling assembly to thereby prevent that drug can be expelled from the drug-filled cartridge when the external power source has been connected to the electrical connector.

2. Drug delivery device as in claim 1, wherein the electronic controller is adapted to detect a physical presence of a connected connector.

3. Drug delivery device as in claim 1, wherein the electronic controller is adapted to detect that a voltage is supplied to the electrical connector.

4. Drug delivery device as in claim 1, wherein the expelling assembly comprises setting structure allowing a user to set a dose of drug to be expelled, and the electronic controller is adapted to disable the setting structure when the indicative condition is detected.

5. Drug delivery device as in claim 1, further comprising a display, the electronic controller being adapted to control the display to indicate that the expelling assembly has been disabled when the indicative condition is detected.

6. Drug delivery device as in claim 1 in combination with the external power source comprising the external connector adapted to be received in the electrical connector to thereby charge the rechargeable electric power source.