ACTIVATION MECHANISM FOR DRUG DELIVERY DEVICE
A drug delivery device includes a housing, an injection assembly at least partially disposed in the housing, a shield, and a drive assembly at least partially disposed in the housing and coupled withthe injection assembly and the shield. The shield has an extended position where at least a proximal...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | A drug delivery device includes a housing, an injection assembly at least partially disposed in the housing, a shield, and a drive assembly at least partially disposed in the housing and coupled withthe injection assembly and the shield. The shield has an extended position where at least a proximal end thereof extends a distance beyond a proximal end of the housing. The injection assembly includes a needle or cannula having an endpoint. Upon moving the shield axially towards the distal end of the housing a predetermined distance, a retraction profile commences whereby the drive assembly administers a medicament via the injection assembly. A peak resistance force is exerted within approximately the first 12mm of axial movement of the shield.
披露了一种药物递送装置,包括:外壳;注射组件,该注射组件至少部分地布置在该外壳中;护罩;以及驱动组件,该驱动组件至少部分地布置在该外壳中并且与该注射组件和该护罩联接。该护罩具有延伸位置,在该延伸位置处,至少该护罩的近端延伸一段距离超出该外壳的近端。该注射组件包括具有端点的针头或插管。在使该护罩朝向该外壳的远端轴向移动预定距离时,回缩分布曲线开始,由此该驱动组件经由该注射组件来施用药物。在该护罩轴向移动的大约前12mm内施加峰值阻力。 |
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