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US 10,441,729 B2Granted
Autoinjector with selectable release mode
AssigneeTecPharma Licensing AG
InventorsMarkus Tschirren, Jürg Hirschel, Marc Fiechter
Life of this patent
Estimating the term…
Abstract
An injection device for administering a liquid medicament includes a generally elongate housing, a syringe holder in which a syringe can be placed, said syringe containing a medication, a stop and a needle on the distal area thereof, a needle protection housing which is arranged so it can be moved axially on the housing and which protrudes at a certain distance from the distal end of the housing.
Claims21
An injection device for injecting medicaments, comprising:
- a housing;
- a needle protection sleeve, a portion of which is configured to protrude from a distal end of the housing;
- a needle protection spring configured to move the needle protection sleeve from a proximal position into a distal position;
- a syringe device comprising a syringe holder, which is axially moveable in the needle protection sleeve, a syringe comprising a piston, a medicament and a needle on a distal end of the syringe device, wherein the syringe is placed in the syringe holder of the syringe device;
- a holding device;
- a releasing element surrounding the holding device and in contact with the needle protection spring;
- a drive device configured to be axially moveable in the housing and to be uncoupled from the holding device, wherein the drive device stores energy for moving the syringe holder in a distal direction and for discharging the medicament by advancing the piston in the distal direction in the syringe;
- and
- a release button assembly comprising a release button for enabling the drive device to be uncoupled from the holding device,
- wherein the release button is operatively connected to the drive device and to the holding device, such that a distal movement of the release button causes the drive device to move distally whereby the holding device is shifted by the drive device in the distal direction.
7 more elements
An injection device for injecting a medicament, comprising:
- a housing;
- a needle protection sleeve axially movable relative to the housing and configured to extend past a distal end of the housing when moved into a distal position by a needle protection spring;
- a syringe holder axially moveable in the needle protection sleeve, the syringe holder configured to hold a syringe comprising a piston;
- a drive device comprising a piston rod and a drive spring, the drive device configured to be axially moveable in the housing, wherein the drive spring stores energy for moving the syringe holder in the distal direction and for discharging the medicament to be injected;
- a holding device configured to be releasably coupled with the drive device;
- and
- a release button for enabling the drive device to be uncoupled from the holding device,
- wherein a distal movement of the release button causes the piston rod to move distally and to drive the holding device in the distal direction.
5 more elements
Dependencies are inferred from the claim text.