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AUTOINJECTOR WITH OCA PISTON ROD
专利权人:
MERCK PATENT GMBH
发明人:
PETER BLAABJERG JACOBSEN
申请号:
BR112019024329
公开号:
BR112019024329A2
申请日:
2018.05.16
申请国别(地区):
BR
年份:
2020
代理人:
摘要:
the present invention relates to a refillable autoinjector having a housing for accommodation of: a syringe with a needle, the syringe being positioned mobilely in the housing, between a first position, in which the needle is accommodated within the housing, and a second position, in which position the needle extends out of the housing; a plunger rod configured to be advanced into the syringe to deliver at least one dose of medication; a piston rod tube having two or more deflectionable locking elements, configured to interact with a piston rod stop to normally lock the piston rod with the piston rod tube; a syringe driver, configured to apply force to the syringe, thereby moving the syringe from the first position to the second position, the syringe driver being further configured to advance the plunger tube with the plunger rod to the second position; a plunger rod actuator, which is configured to apply force to the plunger rod to advance the plunger rod into the syringe, to release a dose of medication by unlocking each of two or more deflectionable locking elements; and a reloading mechanism, configured to retract the syringe from the second position to the first position and reload the syringe driver to allow repeated activation of the syringe driver.a presente invenção refere-se a um autoinjetor recarregável tendo um alojamento para acomodação de: uma seringa com uma agulha, a seringa sendo posicionada de forma móvel no alojamento, entre uma primeira posição, na qual a agulha é acomodada dentro do alojamento, e uma segunda posição, em cuja posição a agulha se estende para fora do alojamento; uma haste de êmbolo configurada para ser avançada na seringa para liberação de pelo menos uma dose de medicamento; um tubo de haste de êmbolo tendo dois ou mais elementos de travamento deflexionáveis, configurados para interagir com um batente de haste de êmbolo para travar normalmente a haste de êmbolo com o tubo de haste de êmbolo; um acionador de seringa, configurado pa
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