| 摘要 |
The invention relates to a device for administering an injectable product in doses, said device comprising: a casing, comprising a reservoir for the product; a piston, which displaces product towards a reservoir outlet and out of the reservoir when it slides in an advancing direction; a drive member, which may be slid along a sliding axis, thereby pushing the piston in the advancing direction; and a dosing member, which is mounted in the casing and may be slid, preferably rotated, about the sliding axis of the drive member, for setting a product dosage which may be delivered when the product is administered, wherein a bearing surface between the dosing member and the casing is lubricated, and at least one lubricating agent reservoir is provided on the one bearing surface.
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