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Publication Number
US-12337153-B2
Publication Date
2025-06-24
Expiration Date
Abstract
The present invention relates to a monitoring device (10) arranged to be operably connected to a medicament delivery device (12), said medicament delivery device (12) comprising a manually operated movable dose activation element (20), said monitoring device (10) comprising an electronic circuit (42), said electronic circuit (42) comprising an optical sensor (68), wherein said optical sensor (68) is positioned in relation to said dose activation element (20) so as to detect a manual operation of said dose activation element (20) from an initial position; said electronics circuit further comprising a vibration sensor (70), wherein said vibration sensor (70) is positioned in relation to said medicament delivery device so as to detect specific vibration spectra produced by the medicament delivery device when said dose activating element (20) is operated, wherein said electronic circuit (42) comprises computing elements capable of correlating the information from the optical sensor (68) with the information from the vibration sensor (70) when said dose activation element (20) is operated in order to register when a correct dose has been set.
Core Innovation
The invention relates to a monitoring device arranged to be removably connected to a medicament delivery device including a manually operated movable dose activation element. The monitoring device includes a housing and an annular sleeve configured to be removably coupled to an outside of the medicament delivery device, with a mechanical fixation element extending along an opening in the annular sleeve to correspond with a support surface on the medicament delivery device.
The monitoring device detects specific vibration spectra produced by the medicament delivery device when the movable dose activation element is operated. The specific vibration spectra is produced at predetermined dose quantity intervals and is detected by a vibration sensor arranged to detect and record audible clicks corresponding to the predetermined dose quantity intervals as a dose of medicament is set by a user turning the dose activation element.
In another aspect, the monitoring device includes a first sensor configured to measure movement of the dose activation element by scanning a surface of the dose activation element to detect movement from an initial position. An electronic circuit in communication with the vibration sensor and computing elements are capable of correlating information from the vibration sensor, and correlating information from the first sensor with information from the second sensor, in order to register when a correct dose has been set.
The disclosed correlation is described as compensating for mechanical tolerance errors and filtering erroneous click events produced by tapping or dropping.
Claims Coverage
The document provides two independent claims, each centered on a monitoring device removably connected to a medicament delivery device and using sensor correlation to register when a correct dose has been set, with two-sensor correlation in one independent claim and vibration/click correlation in the other.
Removably connected annular sleeve with mechanical fixation
An annular sleeve configured to be removably coupled to an outside of the medicament delivery device and attachable to the housing, with a mechanical fixation element extending along an opening in the annular sleeve and corresponding to a support surface that is a side surface around an opening in the medicament delivery device.
Vibration spectra and audible click detection at predetermined dose quantity intervals
A vibration sensor positioned in the housing and configured to detect specific vibration spectra produced by the medicament delivery device when the movable dose activation element is operated, where the specific vibration spectra is produced at predetermined dose quantity intervals and the vibration sensor detects and records audible clicks corresponding to the predetermined dose quantity intervals as a dose of medicament is set.
Correlation logic for registering correct dose
An electronic circuit in communication with the vibration sensor and including computing elements capable of correlating information from the vibration sensor when the dose activation element is operated in order to register when a correct dose has been set.
Position measurement of dose activation element from initial position
A first sensor configured to measure movement of the dose activation element, arranged to scan a surface of the dose activation element to detect movement of the dose activation element from an initial position.
Two-sensor correlation of movement with vibration spectra
An electronic circuit in communication with the first sensor and the second sensor, wherein computing elements correlate information from the first sensor with information from the second sensor when the dose activation element is operated in order to register when a correct dose has been set.
Together, the independent claims cover a removably attached monitoring device that detects specific vibration spectra and audible clicks at predetermined dose quantity intervals and uses an electronic circuit with computing elements to correlate sensor information to register when a correct dose has been set, including an aspect where the dose activation element movement is measured from an initial position and correlated with the vibration detection.
Stated Advantages
Compensates for mechanical tolerance errors.
Filters out erroneous click events from tapping or dropping.
Documented Applications
Monitoring a medicament delivery device (including an insulin pen) during manually operated dose setting by registering when a correct dose has been set.
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