BENTE IV, Paul F.,HANSON, Ian B.,MANDES, Vincent E.,O'CONNOR, Sean M.
申请号：
ES13762339
公开号：
ES2639096T3
申请日:
2013.08.29
申请国别(地区):
ES
年份:
2017
代理人:
摘要：
A variable rate controlled administration drive mechanism (100) comprises: a drive mechanism housing (130), at least partially within which a load or solicitation member (122) initially resides, positioned in a state initially energized within of an inner cavity of a piston (110)； a gear drive (120) having a gear (520) and a substantially axial internal passage (120A)； characterized in that it further comprises: a first screw (124) that at least partially resides within the axial internal passage (120A), said first screw (124) also having a substantially axial passage (124A) and a first external passage (124B) in where the first external passage (124B) is configured to be applied to a first nut (126) that also resides within the internal passage (120A) of the gear drive (120)； a second nut (128) configured to be applied to a second screw (132) having a second external passage (132B), said second nut (128) being positioned within an axial column (110B) of a piston (110), being said axial column (110B) and second nut (128) positioned to reside at least partially within the axial passage (124A) of the first screw (124)； wherein the piston (110) has an interface surface (110C) adjacent to a piston seal (60) and is configured to axially move the piston seal (60), by a force exerted on it from the member of loading (122), from a first position to a second position within a medicament container (50) for administration of medication and wherein the loading member (122) is dosed for free expansion from its energized state.Un mecanismo (100) de accionamiento de administración controlada de tasa variable comprende: un alojamiento (130) de mecanismo de accionamiento, al menos parcialmente dentro del cual reside inicialmente un miembro (122) de carga o solicitación, posicionado en un estado energizado inicialmente dentro de una cavidad interior de un pistón (110)； un accionamiento (120) por engranajes que tiene un engranaje (520) y un paso interno (120A) sustancialmente axial； c
