Injection device with means for signalling the time since the last injection

• US 9,314,573 B2
• Filed: 10/20/2005
• Issued: 04/19/2016
• Est. Priority Date: 10/21/2004
• Status: Expired due to Fees

• Current Assignee: Novo Nordisk A/S
• Original Assignee: Novo Nordisk A/S
• Inventors: Nielsen, Preben, Enggaard, Christian Peter, Thogersen, Klaus, Miller, Thomas D., Mnchow, Bodo von
• Primary Examiner(s): Schmidt, Emily
• Assistant Examiner(s): PENG, LAUREN MICHELE
• Application Number:
  US11/665,484
• Publication Number:
  US 20090076458A1
• Time in Patent Office: 3,834 Days
• Field of Search: 604/31, 604/65, 604/67, 604/120, 604/186, 604/189, 604/207, 604/246
• US Class Current: 1/1
• CPC Class Codes: A61M 2005/3126 Specific display means related to dosing
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/587 Lighting arrangements
• CPC Class Codes: A61M 2205/8212 with means or measures taken for minimising energy consumption
• 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 5/31525 Dosing burettes, pipettes B01L3/02
• CPC Class Codes: A61M 5/3155 by rotational movement of dose setting member, e.g. during setting or filling of a syringe

Abstract

The present Invention relates to an injection device capable of emitting a flashing light signal indicating the time elapsed since last ejection and/or the size of the last ejected dosage and/or a return signal indicating the operable state of the device and/or a time out signal indicating when the pen can be removed after ejecting of a dosage. The injection device comprises an electronic control circuit comprising: a sensor unit arranged to detect the occurrence of an ejection of a drug from the injection device; a timer for determining an approximate time elapsed since last ejection; a signal emitting device being able to emit a signal, the signal emitting device being controllable by the electric control circuit, so as to emit a time signal that varies with the time elapsed since last ejection.

Claims

1. An injection device (102) comprising an electronic control circuit (126,152) comprising:

a dosage setting device for setting the dose to be injected;

a sensor unit arranged to detect the occurrence of an ejection of a drug from the injection device, by determining that a button of the dosage setting device is activated;

a timer (142) for determining an approximate time elapsed since completion of last ejection;

a signal emitting device (110,130) being able to emit a signal (114), the signal emitting device (110,130) being controllable by the electric control circuit, so as to emit a time signal that varies with the time elapsed since completion of last ejection,

wherein, the emitted time signal consists of a flashing light indicating the time elapsed since completion of last ejection, and wherein the frequency at which the flashing light flashes increases with the time elapsed since completion of last ejection.