Multiple transducer injection measurement
US10993696B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2017 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jun 25, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8243
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A plunger head for a medication injection device includes a first ultrasonic transducer coupled to emit ultrasonic signals, where the first ultrasonic transducer is oriented within the plunger head to send the ultrasonic signals along a length of a barrel of the medication injection device when the plunger head is disposed in the barrel. A second ultrasonic transducer is disposed within the plunger head and oriented to receive reflections of the ultrasonic signals. A controller is disposed in the plunger head and coupled to the first ultrasonic transducer and the second ultrasonic transducer. The controller includes logic that when executed by the controller causes the controller to perform operations including instructing the first ultrasonic transducer to emit the ultrasonic signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.