摘要:
A dose setting mechanism for an injection device that limits the setting of a dose beyond a predetermined amount of medication. The mechanism is based on a first stop element (400) that reciprocates between a first position and a second position during the dose setting and dose delivery step, and a second stop element (300) that moves unidirectionally during dose delivery. The first and second stop elements both have limiters (301)(401)and the axial or angular distance between the two limiters is reduced during dose setting and remains contact during dose delivery whereby the setting of a dose exceeding a predetermined amount of medication is prevented when the two limiters are engaged. Furthermore, a method for assembly and programming the predetermined amount of medication that can be dispensed from the injection device is presented.
摘要:
An injection device including a housing and a delivery element guided in a liquid-tight manner in relation to the housing, the delivery element having a substantially smooth, cylindrical outer wall region and surrounded by at least one annular sealing element.
摘要:
Die Erfindung betrifft einen Insertionsmechanismus für eine Kanüle (7, 8) mit: einem Kanülengehäuse (1), relativ zu welchem die Kanüle (7, 8) verschoben werden kann; einem Kanülenhalter (2.2, 3.2), an welchem die Kanüle (7, 8) befestigbar ist und welcher relativ zum Kanülengehäuse (1) bewegbar ist; einem Insertions-Energiespeicher (4) zum Erzeugen einer Insertionskraft auf den einen Kanülenhalter (2.2, 3.2) und zum Erzeugen einer Freigabekraft auf ein Halteelement (1.1); einem Halteelement (1.1), welcher den Kanülenhalter (2.2, 3.2) gegen die vom Insertions-Energiespeicher (4) erzeugte Kraft relativ zum Kanülengehäuse (1) halten kann; und einer Sicherung (9), welche das Halteelement (1.1) im Sicherungszustand gegen eine Kraft des Insertions-Energiespeichers (4) in Sperrstellung hält und im ausgelösten Zustand das Halteelement (1.1) freigibt, sodass das Halteelement (1.1) durch die Kraft des Insertions-Energiespeichers (4) in Freigabestellung bewegt werden kann und sich der Kanülenhalter (2.2, 3.2) angetrieben durch den Insertions-Energiespeicher (4) relativ zum Kanülengehäuse (1) bewegen kann, um eine Insertionsbewegung auszulösen.
摘要:
An infusion apparatus for delivering medication includes a housing, a drive mechanism, a force sensor, and a transfer element. The drive mechanism comprises first and second conveying elements, the second conveying element for advancing a plug in a reservoir in the distal direction, the first conveying element with limited axial movement relative to the housing but rotatable to cause an ejecting or resetting movement of the second conveying element. The force sensor is arranged along a central axis between the housing and the proximal end of the drive mechanism. The transfer element is axially arranged between the force sensor and the first conveying element and the force sensor bears axial forces exerted by the ejection movement. The second conveying element moves the transfer element away from the first conveying element against the bias of a restoring force such that the force sensor bears axial forces exerted by the resetting movement.
摘要:
The invention relates to an injection device, especially autoinjector, which comprises: a) a housing (1), b) an actuating sleeve (6) which is mounted to be movable relative to the housing (1) and which can be placed on a point of injection of a patient with the distal end of the injection device, c) an injection needle (4) which protrudes over the distal end of the injection device when in the position of insertion and which can be moved back into the interior of the injection device, d) an actuating cam (17) which is arranged in an axially fixed manner relative to the injection needle (4) and which engages in a locking recess (20) when in the position of insertion to prevent the injection needle (4) from being retracted into the interior of the injection device, e) said actuation cam (17) being releasable from the engagement with the locking recess (20) by means of the actuating sleeve (6), thereby releasing the injection needle (4) for the retracting movement.
摘要:
An injection device including a housing and a delivery element guided in a liquid-tight manner in relation to the housing, the delivery element having a substantially smooth, cylindrical outer wall region and surrounded by at least one annular sealing element.