A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/48 (2006.01) A61M 5/20 (2006.01)
Patent
CA 2743571
[0063] An additive force device (111) is connectible with a drug delivery device (100) to increase the amount of force exerted by a user on the dose setting knob (24) to facilitate injection. The additive force device (111) includes a first spring (121) and a loading barrel (135) connected to the first spring (121) for storing torque therein. A ratchet assembly (129) is connected to the loading barrel (135) and to the first spring (121). The ratchet assembly (129) has a first position in which torque is stored in the first spring (121) and a second position in which torque is released from the first spring (121). An inner barrel (133) is connected to the ratchet assembly and to the drug delivery device (100). The inner barrel (133) transmits the stored torque from the first spring (121) to the drug delivery device (100) to increase an injection force thereof. Image
[0063] Un dispositif de force additionnelle (111) selon l'invention peut être connecté à un dispositif de distribution de médicaments (100) pour augmenter la force exercée par un utilisateur sur le bouton de réglage de dose (24) pour faciliter l'injection. Le dispositif de force additionnelle (111) comporte un premier ressort (121) et un cylindre de chargement (135) connecté au premier ressort (121) pour stocker le couple dans celui-ci. Un ensemble de cliquet (129) est connecté au cylindre de chargement (135) et au premier ressort (121). L'ensemble de cliquet (129) a une première position dans laquelle le couple est stocké dans le premier ressort (121) et une deuxième position dans laquelle le couple est libéré par le premier ressort (121). Un cylindre intérieur (133) est connecté à l'ensemble de cliquet et au dispositif de distribution de médicaments (100). Le cylindre intérieur (133) transmet le couple stocké depuis le premier ressort (121) au dispositif de distribution de médicaments (100) pour augmenter sa force d'injection.
Becton Dickinson And Company
Gowling Lafleur Henderson Llp
LandOfFree
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