Autoinjector

Patent metadata

Field	Value
Publication number	US-2019365998-A1
Application number	US-201916542964-A
Country	US
Kind code	A1
Filing date	Aug 16, 2019
Priority date	Aug 15, 2012
Publication date	Dec 5, 2019
Grant date	—

Abstract

Described is an autoinjector comprising of a case, a motor adapted to rotate a drive gear, and a curvi-linear plunger adapted to mate with the drive gear. The plunger includes a distal end with a resilient flange, which in a non-deflected state, abuts a proximal collar of a syringe, and, in a deflected state, advances through the proximal collar and engages a stopper in the syringe.

First claim

1 - 15 . (canceled)

16 . An autoinjector, comprising:
a plunger; a motor configured to drive the plunger; and a data processing unit configured to read data from a data storage device provided on at least one of: a syringe or a syringe case.

17 . The autoinjector of claim 16 , wherein the data indicates at least one of: a type of a medicament, a volume of a medicament, or an expiration date of a medicament.

18 . The autoinjector of claim 16 , wherein the data processing unit is further configured to determine a position of the plunger.

19 . The autoinjector of claim 16 , wherein the autoinjector further comprises a user interface and the data processing unit is further configured to cause the user interface to render, based on the data, at least one of: visual information or audible information.

20 . The autoinjector of claim 19 , wherein the visual information or the audible information provides instructions to a user of the autoinjector for using the autoinjector during an injection process.

21 . The autoinjector of claim 19 , wherein the visual information or the audible information provides an alert indicating that a user of the autoinjector is due for an injection of medicament.

22 . The autoinjector of claim 19 , wherein the visual information or the audible information comprises information about a medicament of the syringe.

23 . The autoinjector of claim 16 , wherein the data processing unit is further configured to operate at least one of: a mechanical component of the autoinjector, an electronic component of the autoinjector, or an optical component of the autoinjector.

24 . The autoinjector of claim 16 , wherein the data processing unit is further configured to monitor contact between at least a portion of the autoinjector and an injection site on a user of the autoinjector.

25 . The autoinjector of claim 16 , wherein the data processing unit is further configured to write data to the data storage device.

26 . An autoinjector, comprising:
a plunger; a drive gear for driving the plunger; and a data processing unit configured to read data from a data storage device provided on at least one of: a syringe or a syringe case.

27 . The autoinjector of claim 26 , wherein the data indicates at least one of: a type of a medicament, a volume of a medicament, or an expiration date of a medicament.

28 . The autoinjector of claim 26 , wherein the data processing unit is further configured to determine a position of the plunger.

29 . The autoinjector of claim 26 , further comprising a touchscreen.

30 . The autoinjector of claim 26 , wherein the data processing unit is further configured to operate at least one of: a mechanical component of the autoinjector, an electronic component of the autoinjector, or an optical component of the autoinjector.

31 . The autoinjector of claim 26 , wherein the data processing unit is further configured to write data to the data storage device.

32 . The autoinjector of claim 26 , further comprising a motor configured to rotate the drive gear.

33 . An autoinjector, comprising:
a case; a plunger comprising a distal end with a resilient flange having ramped or rounded edges; a motor configured to rotate a drive gear for driving the plunger; and a data processing unit configured to read data from a data storage device provided on at least one of: a syringe or a syringe case.

34 . The autoinjector of claim 33 , wherein when the motor rotates the drive gear, the plunger is advanced such that the resilient flange being in a non-deflected state is configured to engage a proximal collar of a syringe and move the syringe in a distal direction until the syringe abuts a distal stop in the case.

35 . The autoinjector of claim 34 , wherein when the syringe abuts the distal stop, a needle of the syringe is extended through an aperture and continued rotation of the drive gear is configured to cause the resilient flange to be deflected by the proximal collar resulting in a deflected state, in which the resilient flange is configured to advance through the proximal collar and engage a stopper in the syringe pushing the stopper distally to dispense a medicament through the needle.

Assignees

• Sanofi Aventis Deutschland

Inventors

• Henderson Charley
• Cross David
• Jennings Douglas Ivan
• Mcginley Ryan Anthony

Classifications

• A61M2205/273

  preventing reuse, e.g. of disposables · CPC title

• A61M2205/583

  by visual feedback · CPC title

• A61M2205/52

  with memories providing a history of measured variating parameters of apparatus or patient · CPC title

• A61M2205/36

  related to heating or cooling · CPC title

• A61M5/20 Primary

  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 title