Bigfoot Biomedical has patented a sliding cover for a liquid delivery device, like a pen injector cap, with sensors to monitor plunger position and dosage delivery. The optical sensor and position sensor work together to accurately track dosages for display, storage, or transmission to external devices. GlobalData’s report on Bigfoot Biomedical gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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Data Insights Bigfoot Biomedical Inc - Company Profile

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According to GlobalData’s company profile on Bigfoot Biomedical, Wearable drug delivery devices was a key innovation area identified from patents. Bigfoot Biomedical's grant share as of January 2024 was 33%. Grant share is based on the ratio of number of grants to total number of patents.

Sliding cover with sensors for liquid delivery device

Source: United States Patent and Trademark Office (USPTO). Credit: Bigfoot Biomedical Inc

The granted patent (Publication Number: US11844935B2) discloses an apparatus designed for use with a liquid delivery system, specifically a pen injector. The apparatus includes a sliding cover that engages with the transparent cylinder of the pen injector and houses a set of sensors. These sensors consist of an optical sensor with an emitter and receiver for radiation detection, along with a position sensor that operates independently. A processing system is integrated to analyze the sensor outputs, particularly focusing on changes in radiation reception to determine the optical sensor's spatial relationship to the plunger within the cylinder.

Furthermore, the apparatus features a cap with a central bore for accommodating the pen injector, along with a cradle that interacts with the pen injector's end portion. The sensors, including the optical and position sensors, are housed within the cap and move accordingly. The position sensor, utilizing a linear potentiometer strip and a pressure element on the cradle, provides data on the cradle's position within the central bore. The processing system responds to variations in the optical sensor's output, indicating its alignment with the plunger. The optical sensor's design includes a focusing element that generates a converging beam of radiation directed obliquely inwards, reaching a focal point near the cylinder's wall after traversing a significant portion of its width.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.