Medicament Delivery Device and Cartridge
AssigneeSanofi-Aventis Deutschland GmbH
InventorsChristian Nessel, Charley Henderson, David Cross, Douglas Ivan Jennings, Ryan Anthony McGinley
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Abstract
Described is a cartridge comprising a body adapted to contain a medicament, a bung slidably disposed in the body and having a distal face and a proximal face, and a light element coupled to a component of the cartridge. Further described is a medicament delivery device comprising the cartridge, a first receiver adapted to receive an optical signal from the light element and convert the optical signal into a first electrical signal, and a second receiver adapted to receive an optical signal from the light element and convert the optical signal into a second electrical signal.
Claims17
1-17 (canceled)
A cartridge, comprising:
- a body configured to contain a medicament;
- a bung slidably disposed in the body, the bung having a distal face and a proximal face, the distal face configured to be in contact with the medicament;
- and
- a light element coupled to a component of the cartridge, the light element configured to direct light proximally along a longitudinal axis of the body, the light having an angle of diffusion relative to the longitudinal axis such that the light is received at a location proximal to the light element and transversally offset from the longitudinal axis.
The cartridge of claim 1, wherein the light element is configured to direct the light proximally to locations proximal to the light element such that illuminance values at the locations are indicative of an axial displacement of the bung.
The cartridge of claim 2, wherein the illuminance values at the locations are indicative of a dose of medicament delivered from the cartridge.
The cartridge of claim 1, wherein the light element is coupled to the proximal face of the bung.
The cartridge of claim 1, wherein the light element is wholly embedded in the bung.
The cartridge of claim 1, wherein the light element is coupled to the body.
The cartridge of claim 1, further comprising a power source coupled to the light element.
The cartridge of claim 1, wherein the bung is translucent.
The cartridge of claim 1, wherein the light element is at least one of a light emitting device and a light reflecting device.
The cartridge of claim 1, further comprising a lens disposed adjacent the light element, the lens configured to focus an optical signal emitted by the light element.
The cartridge of claim 1, wherein the light has an angle of diffusion relative to the longitudinal axis such that the light is received at locations proximal to the light element, transversally offset from one another, and transversally offset from the longitudinal axis.
The cartridge of claim 1, wherein the light is diffuse light.
The cartridge of claim 1, further comprising the medicament, the medicament comprising at least one pharmaceutically active compound.
The cartridge of claim 1, wherein the light element is positioned to direct the light such that an illuminance of the light at a reference line perpendicular to a longitudinal axis of the cartridge decreases as the bung advances through the cartridge.
The cartridge of claim 14, wherein the bung is configured to be positioned at the reference line prior to use of the cartridge.
The cartridge of claim 1, wherein the light element is configured to direct the light in a direction substantially parallel to the longitudinal axis.
Dependencies are inferred from the claim text.