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US 10,293,114 B2Granted
Drug delivery device
AssigneeSanofi-Aventis Deutschland GmbH
InventorsStefan Wendland, Anke Liewald, Frank Ricther, Caroline Stephan
Life of this patent
Estimating the term…
Abstract
The invention relates to a drug delivery device comprising: a syringe with a body from which a needle extends and an inner sheath; a piston rod comprising a piston and an actuation head, a support sheath for holding the body. It is envisaged that the support sheath and the actuation head comprise corresponding indicators.
Claims20
A drug delivery device comprising:
- a syringe from which a needle extends,
- an inner sheath adapted to be movable between a retracted position in which the needle projects beyond a distal end of the inner sheath and an extended position in which the needle is covered by the inner sheath,
- a support sheath adapted to hold the syringe and to hold the inner sheath in the retracted position as well as in the extended position,
- a piston rod that is movable from a first position in which the piston rod is retracted, to a second position wherein a drug delivery process is finished, and
- an actuation head that is coupled on a proximal end of the piston rod, wherein the actuation head includes one or more markings, wherein the one or more markings comprise a number of fragmented markings,
- wherein the support sheath comprises a proximal section that is at least partially transparent, and
- wherein the one or more markings are viewable through the proximal section of the support sheath when the piston rod is in the second position, the one or more markings being viewable through the proximal section of the support sheath indicating that the drug delivery process is finished.
4 more elements
A drug delivery device comprising:
- a syringe from which a needle extends,
- an inner sheath adapted to be movable between a retracted position in which the needle projects beyond a distal end of the inner sheath and an extended position in which the needle is covered by the inner sheath,
- a support sheath adapted to hold the syringe and to hold the inner sheath in the retracted position as well as in the extended position,
- a piston rod that is movable from a first position in which the piston rod is retracted, to a second position wherein a drug delivery process is finished, and
- an actuation head that is coupled on a proximal end of the piston rod,
- wherein the support sheath comprises a proximal section, wherein the proximal section of the support sheath comprises one or more first markings and the actuation head comprises one or more second markings, the one or more first markings and the one or more second markings together being configured to provide visible feedback indicating that the piston rod is in the second position, the proximal section of the support sheath having a color that is different from a color of the one or more first markings, the actuation head having a color that is different from a color of the one or more second markings,
- wherein the one or more first markings or the one or more second markings are fragmented markings.
4 more elements
A drug delivery device comprising:
- a syringe from which a needle extends,
- an inner sheath adapted to be movable between a retracted position in which the needle projects beyond a distal end of the inner sheath and an extended position in which the needle is covered by the inner sheath,
- a support sheath adapted to hold the syringe and to hold the inner sheath in the retracted position as well as in the extended position,
- a piston rod that is movable from a first position in which the piston rod is retracted, to a second position wherein a drug delivery process is finished, and
- an actuation head that is coupled on a proximal end of the piston rod,
- wherein the support sheath comprises a proximal section, wherein the proximal section of the support sheath comprises one or more first markings and the actuation head comprises one or more second markings, the one or more first markings and the one or more second markings together being configured to provide visible feedback indicating that the piston rod is in the second position, the proximal section of the support sheath having a color that is different from a color of the one or more first markings, the actuation head having a color that is different from a color of the one or more second markings,
- wherein the proximal section of the support sheath includes a coloured translucent material or a transparent material, wherein a degree of transparency or color of the material of the support sheath is substantially equal to a degree of transparency or color of a material of the actuation head.
4 more elements
Dependencies are inferred from the claim text.