Patent · US Active

Method of manufacturing one of a range of autoinjectors

US10799634B2 · kind B2 · utility

0Cited by

7References

27Claims

0Family size

Assignee

Novo Nordisk A/S · DK

Inventors

Mads Schenstroem Stefansen · Copenhagen, DK
Soeren Kjellerup Hansen · Fjenneslev, DK
Klaus Bendix · Smerup, DK

Key dates

Filing date	Nov 12, 2015
Grant date	Oct 13, 2020
Priority date	—
Expiry date	Sep 9, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2207/00
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method of manufacturing one of a range of autoinjectors having cartridges (600, 600′, 600″) with different preset fill volumes, the method comprising the steps of: a) providing a front body assembly (100b, 100c, 100c′, 100c″), b) providing a cartridge (600, 600′, 600″) of given fill volume, c) providing a rear body assembly (100a) comprising a spring-driven drive ram assembly (310, 320) configured to drive the piston of a held cartridge (600, 600′, 600″), d) providing a ram spacer member (400, 400′, 400″), the ram spacer member defining a spacing geometry of length dimension (X1′, X1″, X1′″, XS′, XS″, XS′″, XR′, XR″, XR′″) selected according to the fill volume of the cartridge (600, 600′, 600″), and e) assembling a front body assembly (100b, 100c, 100c′, 100c″), the cartridge (600, 600′, 600″), the ram spacer member (400, 400′, 400″) and the rear body assembly (100a) so that the ram spacer member (400, 400′, 400″) is arranged axially between the drive ram assembly (310, 320) of the rear body assembly (100a) and the piston of a held cartridge (600, 600′, 600″).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.