Medicament injection apparatus

• US 20030114800A1
• Filed: 12/10/2002
• Published: 06/19/2003
• Est. Priority Date: 12/18/2001
• Status: Active Grant

• Current Assignee: Sanofi-Aventis Deutschland GmbH (Sanofi )
• Original Assignee: Dca Design International Ltd.
• Inventors: Veasey, Robert Frederick, Langley, Christopher Nigel, Woolston, Robert, Day, Shane Alistair
• Granted Patent: US 8,523,827 B2
• Time in Patent Office: Days
• US Class Current: 604/245
• CPC Class Codes: A61M 2005/3125 specific display means, e.g. to indicate dose setting
• CPC Class Codes: A61M 2005/31588 electrically driven
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/583 by visual feedback
• 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 5/24 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 5/31546 Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons

Abstract

The present invention relates to a medicament injection apparatus that permits injection of a fluid medicament into a patient through a needle. If the needle is withdrawn before the injected medicament has properly dispersed locally from the injection site within a patient, the injected medicament may escape through the needle wound and not be dispersed into the patient. Unfortunately, it is common for a user to become impatient and withdraw the needle when the user feels a suitable dispersal period has elapsed. Often the waiting period determined by the user is less than the required period for dispersal of the medicament resulting in the problem identified. A medicament injection apparatus is disclosed comprising a timer and a display, the timer being actuated upon commencement of an injection operation, in which the timer runs to a predetermined time subsequent to completion of the injection operation and the display is operated while the timer runs.

Claims

1. A medicament injection apparatus comprising a timer and a display, the timer being actuated upon commencement of an injection operation, in which the timer runs to a predetermined time subsequent to completion of the injection operation and the display is operated while the timer runs.

2. A medicament injection apparatus according to claim 1, in which the display comprises a plurality of icons being alternately switched away from and back to a predetermined condition while the timer runs.

3. A medicament injection apparatus according to claim 2, in which each of the plurality of icons is switched away from and back to the predetermined condition in a predetermined sequence.

4. A medicament injection apparatus according to claim 2, in which the predetermined condition of the first icons is an “

on”

condition with each of the plurality of first icons being switched off and then on again in a predetermined sequence.

5. A medicament injection apparatus according to claim 3, in which the predetermined condition of the fit icons is an “

on”

condition with each of the plurality of first icons being switched off and then on again in a predetermined sequence

6. A medicament injection apparatus according to claim 2, in which each of the plurality of icons is switched away from and back to the predetermined condition for a predetermined amount of time.

7. A medicament injection apparatus according to claim 3, in which each of the plurality of icons is switched away from and back to the predetermined condition for a predetermined amount of time