# Tiny Implantable Sensor for Monitoring Body Chemistry > This patent describes a small, implantable sensor designed to continuously measure specific chemicals in a patient's body fluids for disease management. - **Patent:** US 12733845 - **Original title:** Implantable micro-electrochemical cell - **Granted:** 2026 - **Status:** Active - **Times cited:** 0 - **Field:** biotech, medical_devices, consumer_electronics, healthcare ## What it does The patent details a microelectrochemical cell, a tiny device configured to be placed inside a patient's body. It includes a tube with a closed end for implantation and an open end that holds a 'feedthrough' for electrical wires, called 'electrode leads'. Inside this tube, a special fluid medium is kept in contact with the patient's bodily fluids. An 'analyte sensor' within this setup measures specific chemicals, or analytes, present in the body fluid, sending electrical signals through the leads to an external system. For example, such a device could continuously monitor glucose levels in a diabetic patient, providing real-time data. ## What it does NOT cover - Does not cover sensors that are not implanted, such as external or wearable patches that do not penetrate the skin. - Does not cover sensors that measure physical properties like temperature or pressure, focusing specifically on chemical 'analytes'. - Does not cover devices where the fluid medium is not in direct communication with the patient's bodily fluid. - Does not cover implantable sensors that lack the specific tube structure with a closed implanted end and an open feedthrough end. - Does not cover systems where the electrical connections for the sensor are not routed through a feedthrough at the open end of the tube. ## The clever bit The novelty lies in the specific, compact design of the implantable microelectrochemical cell, which allows for a stable fluid interface with the body and a robust electrical connection for continuous, long-term chemical monitoring. ## Real-world examples 1. Dexcom G7 Continuous Glucose Monitor 2. Abbott FreeStyle Libre systems 3. Medtronic Guardian Connect system 4. Implantable lactate sensors for critical care ## Why it matters Continuous monitoring of specific chemicals in the body, like glucose or lactate, is vital for managing many chronic diseases. This technology aims to provide long-term, real-time data directly from within the body, which can lead to more personalized and effective treatment plans. Such devices can help patients and doctors make immediate decisions, potentially preventing serious health complications. ## Frequently asked questions ### What does Tiny Implantable Sensor for Monitoring Body Chemistry cover? This patent describes a small, implantable sensor designed to continuously measure specific chemicals in a patient's body fluids for disease management. ### When does this patent expire? This patent is expected to expire on September 15, 2046, when the invention enters the public domain. ### What problem does this patent solve? Continuous monitoring of specific chemicals in the body, like glucose or lactate, is vital for managing many chronic diseases. This technology aims to provide long-term, real-time data directly from within the body, which can lead to more personalized and effective treatment plans. Such devices can help patients and doctors make immediate decisions, potentially preventing serious health complications. ### What does this patent NOT cover? Does not cover sensors that are not implanted, such as external or wearable patches that do not penetrate the skin. **Full plain-English explainer:** https://patentbrief.org/patent/us/12733845/implantable-micro-electrochemical-cell **Original patent:** https://patents.google.com/patent/US12733845 --- _Source: PatentBrief — https://patentbrief.org. Patent facts are from public records; the plain-English explanation is PatentBrief's._ ## Related patents Semantically similar inventions in the PatentBrief corpus: - [A Catheter That Measures Glucose While Delivering Medication](https://patentbrief.org/patent/us/11382539/analyte-sensor) — This patent describes a medical system that combines a catheter for delivering medication with a continuous glucose sensor built directly onto its surface, allowing for simultaneous monitoring and therapy. - [How Continuous Glucose Monitors Estimate Blood Sugar Levels Accurately](https://patentbrief.org/patent/us/8882665/method-andor-system-for-multicompartment-analyte-monitoring-8882665) — This patent describes a method for accurately estimating blood glucose levels by accounting for the natural delay in glucose moving between interstitial fluid and blood, using sensor data and its rate of change. - [How a Sensor Checks Itself for Accuracy Using Other Body Data](https://patentbrief.org/patent/us/20230263439/systems-and-methods-for-multi-analyte-sensing) — This patent describes a smart system that uses additional body measurements or relationships between different body chemicals to figure out if an analyte sensor, like a glucose monitor, is giving wrong readings and then fixes it or tells you to replace it. - [How Devices Precisely Track Glucose Across Body Compartments](https://patentbrief.org/patent/us/9854998/method-andor-system-for-multicompartment-analyte-monitoring) — This patent describes a method for accurately estimating a person's blood glucose by accounting for the natural time delay in how glucose moves between different body fluids, like blood and the fluid around cells, to better control insulin pumps. - [How a Computer System Automatically Adjusts Blood Sugar in Real-Time](https://patentbrief.org/patent/us/8956321/computerized-system-for-blood-chemistry-monitoring) — This patent describes a computerized system that continuously monitors a patient's blood glucose and automatically adjusts insulin and dextrose delivery to keep blood sugar levels stable, especially for critically ill patients.