Reusable medication delivery device with remaining medication determination capability
US10722658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2017 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jul 26, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31543
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A reusable medication delivery device that can determine medication remaining in a simple fashion. The device includes a first sensor (200) for sensing when a cartridge is mounted in the device, and at least one second sensor for sensing a retraction of a drive member (160) that engages a cartridge plunger (132). The device includes a controller that determines, based on inputs from the first sensor and the at least one second sensor, that a newly installed cartridge is to be considered full or not full of medication. The controller calculates, after a medication delivery and based on an input from a means for determining an amount of medication delivered by operation of a dose delivery mechanism, and if the cartridge was considered full when newly installed, a quantity of medication remaining in the installed cartridge after the medication delivery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.