Title:
INJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO1993016740
Kind Code:
A3
Abstract:
PCT No. PCT/CH93/00037 Sec. 371 Date Oct. 13, 1993 Sec. 102(e) Date Oct. 13, 1993 PCT Filed Feb. 12, 1993 PCT Pub. No. WO93/16740 PCT Pub. Date Sep. 2, 1993.The invention concerns an injection device (1) receiving in exchangeable manner an ampoule (4) with a plunger (5) and an injection needle (6). It further comprises an actuation means (7) essentially consisting of an operating head (8), a drive element (11), a guide element (24) and an output member (9, 19) preferably in the form of a rod (9) and flange (19). The output member is non-rotatably affixed to the guide element (11) itself rigidly mounted inside the device (1) and seated by its own thread in an internal thread (27) of the drive element (11) which can be displaced axially and into rotation by the manual operating head (8). When rotating the operating head (8), the output member (9, 19) is advanced and in the process forces forward the plunger (5), the result being injection. The stationary guide element (24) of the disclosed device is located axially ahead of the axially displaceable drive element (11). Accordingly the length of the actuation system (7) is shorter than in state-of-the-art injection devices, whereby a larger maximum dose can be injected with a device (1) of the same length. The device (1) is applicable in medicine.
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Inventors:
MICHEL PETER (CH)
KIRCHHOFER FRITZ (CH)
KIRCHHOFER FRITZ (CH)
Application Number:
PCT/CH1993/000037
Publication Date:
November 09, 1995
Filing Date:
February 12, 1993
Export Citation:
Assignee:
MEDIMPEX ETS (LI)
International Classes:
A61M5/315; A61M5/24; (IPC1-7): A61M/
Domestic Patent References:
| WO1987002895A1 | 1987-05-21 | |||
| WO1990009202A1 | 1990-08-23 |
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