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US 2022/0054759 A1Published application
Medicament delivery device
AssigneeShl Medical AG
InventorMattias Daniel
Life of this patent
Estimating the term…
Abstract
The present invention relates to a medicament delivery device comprising a drive means configured to act on a medicament container for expelling a medicament; a holding means configured to hold said drive means in a pre-tensioned state; an activation means configured to interact with said holding means for releasing said drive means from the pre-tensioned state; wherein the device further comprises feedback means configured to interact both with said holding means and with said drive means for generating an audible and/or tactile and/or visual signal indicating that the medicament has been completely expelled.
Claims13
A medicament delivery device comprising:
- a housing having a proximal end;
- a pre-filled syringe positioned within the housing and comprising a needle, a dose of medicament and a sliding stopper;
- a tubular activation member comprising two distally projecting arms and a proximal end portion terminating in a radial flange, where the tubular activation member is slidably positioned within the housing to move from a first position to a second position and then to a final locked position;
- a spring located in the proximal end of the tubular activation member, where the spring is in a compressed state when the tubular activation member is in the second position;
- a plunger rod operatively connected to the stopper, where the plunger can only move proximally relative to the tubular activation member when the tubular activation member is in the second position;
- wherein each of the distally projecting arms comprises a distal portion that forms a lock when the tubular activation member is in the locked position such that the tubular activation member is prevented from moving proximally relative to the housing and exposing the needle, and
- wherein the radial flange is positioned outside of the proximal end of the housing when the tubular activation member is in the first position, the second position, and the locked position.
4 more elements
A medicament delivery device comprising:
- a housing having a proximal end;
- a pre-filled syringe positioned within the housing and comprising a needle having a proximal end;
- a tubular activation member comprising two distally projecting arms and a proximal end portion terminating in a radial flange, where the tubular activation member is slidably positioned within the housing to move from a first position to a second position and then to a final locked position, where the flange is positioned proximal of the proximal end of the needle when the tubular activation member is in the first position and the final locked position;
- a spring located in the proximal end of the tubular activation member, where the spring is in a compressed state when the tubular activation member is in the second position such that the proximal end portion is biased to axially move in a proximal direction as the tubular activation member slidably moves from the second position to the final locked position;
- wherein each of the distally projecting arms comprises a distal portion that forms a lock when the tubular activation member is in the locked position such that the tubular activation member is prevented from moving proximally relative to the housing and exposing the needle, and
- wherein the radial flange is positioned outside of the proximal end of the housing when the tubular activation member is in the first position, the second position, and the locked position.
3 more elements
A medicament delivery device comprising:
- a housing having a proximal end;
- a tubular activation member comprising two distally projecting arms and a proximal end portion having an outer diameter and terminating in a radial flange, where the tubular activation member is slidably positioned within the housing to move from a first position to a second position and then to a final locked position;
- a spring located in the proximal end of the tubular activation member, where the spring is in a compressed state when the tubular activation member is in the second position such that the proximal end portion is biased to axially move in a proximal direction as the tubular activation member slidably moves from the second position to the final locked position;
- wherein each of the distally projecting arms comprises a distal portion that forms a lock when the tubular activation member is in the locked position such that the tubular activation member is prevented from moving proximally relative to the housing and exposing the needle,
- wherein the radial flange is positioned outside of the proximal end of the housing when the tubular activation member is in the first position, the second position, and the locked position,
- wherein the spring is positioned inside the tubular activation member to bias the proximal end portion of the tubular activation member proximally when the tubular activation member is in the first position, and
- where the radial flange comprises a terminal end face having a diameter greater than the outer diameter of the proximal end portion.
4 more elements
Dependencies are inferred from the claim text.