System with a monitoring device

Patent metadata

Field	Value
Publication number	US-12589209-B2
Application number	US-202017621332-A
Country	US
Kind code	B2
Filing date	Jun 23, 2020
Priority date	Jun 25, 2019
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

A system is presented including a monitoring device and a medicament delivery device, where the monitoring device is configured to be releasably connected to the medicament delivery device and wherein the monitoring device comprises an induction sensor configured to detect a state of an electrically conductive drive member of the medicament delivery device in an medicament delivery process through an electrical current which is generated by a magnet field by the induction sensor on the electrically conductive drive element.

First claim

The invention claimed is:

1 . A system comprising a monitoring device and a medicament delivery device wherein the monitoring device is configured to be releasably connected to the medicament delivery device, wherein the monitoring device comprises an elongated sleeve defining a cavity for the medicament delivery device, and wherein the monitoring device comprises an induction sensor configured to detect a state of an electrically conductive drive element of the medicament delivery device in a medicament delivery process through an electrical current which is generated by a magnet field by the induction sensor on the electrically conductive drive element, wherein the electrically conductive drive element is a hollow tubular plunger configured to change state from a start state to a final state that partially contains a coil spring that changes from a compressed state to a relaxed state and wherein the induction sensor is configured to detect the absence or presence of the electrically conductive drive element in a sensing area.

2 . The system according to claim 1 , wherein the induction sensor comprises an inductor coil; wherein the state of the electrically conductive drive element is detected through a change of impedance in the inductor coil generated by the inductor coil's electrical current.

3 . The system according to claim 2 wherein the induction sensor further comprises a second inductor coil, configured to be induced with a current by the induction coil under the mutual inductance effect.

4 . The system according to claim 1 , wherein the induction sensor comprises a first inductor coil and a second inductor coil; wherein the electrical current is induced on the second inductor coil from the first inductor coil.

5 . The system according to claim 1 , wherein the monitoring device further comprises one of a sound detector or a vibration detector.

6 . The system according to claim 5 , wherein either of the sound detector or the vibration detector is configured to detect a state of the medicament delivery device in a medicament delivery process.

7 . The system according to claim 5 , wherein the monitoring device further comprises a computing element capable of correlating the information from the induction sensor with the information from the detector when the state of said electrically conductive drive element is changed.

8 . The system according to claim 1 , wherein the monitoring device further comprises an accelerometer or inertia measurement unit detector.

9 . The system according to claim 1 , wherein the induction sensor is configured to detect the state of the coil spring through the difference of the density of spring coils.

10 . The system according to claim 1 , wherein the medicament delivery device is an injector.

11 . A medicament delivery system comprising:
an injection device comprising a hollow tubular plunger that is electrically conductive, partially contains a coil spring that changes from a compressed state to a relaxed state, and is biased in a start state and movable from the start state to a final state; a monitoring device releasably connected to a housing of the injection device, wherein the monitoring device comprises an elongated sleeve defining a cavity for the medicament delivery device, and where the monitoring device comprises: an induction sensor that detects movement of the hollow tubular plunger from the start state to the final state through an electrical current which is generated by a magnet field by the induction sensor, wherein the induction sensor detects an absence or presence of either the hollow tubular plunger or the coil spring in a sensing area as the hollow tubular plunger moves from the start state to the final state.

12 . The system according to claim 11 , wherein the induction sensor comprises a first inductor coil and a second inductor coil, where the electrical current is induced on the second inductor coil from the first inductor coil.

13 . The system according to claim 11 , wherein the monitoring device further comprises a sound detector, a vibration detector, an accelerometer or inertia measurement unit detector.

14 . The system according to claim 11 , wherein the induction sensor detects a density difference of coils of the coil spring.

Assignees

• Quio Tech Llc
• Shl Medical Ag

Inventors

• Schwartzentruber Jared

Classifications

• A61M2205/50

  with microprocessors or computers · CPC title

• A61M2205/3576

  with non implanted data transmission devices, e.g. using external transmitter or receiver · CPC title

• A61M2205/3375

  Acoustical, e.g. ultrasonic, measuring means · CPC title

• A61M2205/3317

  Electromagnetic, inductive or dielectric measuring means · CPC title

• A61M2005/206

  With automatic needle insertion · CPC title