Patent · US Active

Method and device for determining an injection process of an injection appliance, and injection appliance for injecting fluid

US10532162B2 · kind B2 · utility

0Cited by

7References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Merz · Freiberg am Neckar, DE
Fabian Utermoehlen · Lippstadt, DE
Michael Stumber · Ditzingen, DE
Stefan Leidich · Rutesheim, DE

Key dates

Filing date	May 18, 2017
Grant date	Jan 14, 2020
Priority date	—
Expiry date	Apr 27, 2038

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/702
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method for determining an injection process of an injection appliance includes injecting a fluid with the injection appliance and applying an electrical signal to at least one helical spring of the injection appliance coupled to a dosing wheel of the injection appliance. The method also comprises detecting an inductance value of the at least one helical spring. A number of windings of the at least one helical spring is dependent on a set rotation angle of the dosing wheel. The set rotation angle corresponds to a dose quantity of the fluid that is preselected for the injection process. The method moreover includes making available a determination signal representing the determined injection process, using the detected inductance value.

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