Device for administering an injectable product
US6699224B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Apr 2, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31593
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention refers to a device for administering an injectable product in doses, comprising a casing, itself comprising: a reservoir for the product; a piston which forces product out of the reservoir when moved in a feed direction towards a reservoir outlet; a drive member; a driven member which is slaved by the drive member when the drive member is moved in the feed direction, so moving the piston in the feed direction; and a dosing member which may be rotated about the sliding axis of the drive member, to set the product dosage to be administered. The drive member and the dosing member abut each other via at least one dosage stopper each, one of which is provided on the drive member and the other on the dosing member. At least one of these dosage stoppers at least partially encircles the sliding axis of the drive member in the form of a spiral. The at least one spiral dosage stopper exhibits a continuous course with a constant pitch &agr;.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.