# How a Computer System Automatically Adjusts Blood Sugar in Real-Time > 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. - **Patent:** US 8956321 - **Original title:** Computerized system for blood chemistry monitoring - **Owner:** Ideal Medical Technologies - **Granted:** 2015 - **Status:** Active - **Times cited:** 8 - **Field:** biotech, medical_devices, software, telecommunications, healthcare ## What it does The system works by using a glucose sensor to measure a patient's blood sugar level in real-time (Claim 1). This information goes to a computer processor, which calculates a running average of the glucose level (Xa) and tracks how fast it's changing by comparing it to a previous average (Xb). A "glucose control module" within the processor then uses this data, along with previous insulin and dextrose flow rates, to categorize the patient's current glucose situation. Based on this category, the system sends signals to a pump to precisely adjust the flow of insulin and dextrose into the patient's bloodstream, aiming to bring their glucose level back to a normal range (Claim 1). For example, if a patient's glucose is rising rapidly, the system might increase insulin delivery and decrease dextrose. ## What it does NOT cover - Does not cover systems that only monitor blood glucose without automatically adjusting medication delivery. - Does not cover systems that adjust blood chemistry other than glucose and osmolality, or use medications other than insulin, dextrose, and hypertonic saline. - Does not cover systems that rely solely on a single glucose reading without calculating a running average (Xa) and its rate of change (Xa vs Xb). - Does not cover systems that do not categorize the patient's glucose status based on the specific factors listed in Claim 1 (difference from normal range, rate of change, previous insulin/dextrose rates). - Does not cover manual adjustment of medication by medical personnel based on sensor readings. ## The clever bit The novelty lies in the system's ability to not just measure current glucose, but to continuously calculate a running average and, crucially, track the rate of change of that average. It then uses this dynamic information, along with previous medication rates, to assign the patient's status to specific categories, allowing for a highly nuanced and iterative adjustment of insulin and dextrose delivery. ## Real-world examples 1. Automated insulin delivery systems (artificial pancreas systems) 2. Hospital-based glucose management systems 3. Continuous Glucose Monitors (CGMs) integrated with insulin pumps 4. Closed-loop control systems in critical care units ## Why it matters Maintaining stable blood glucose levels is critical for patients in intensive care, during surgery, or after trauma, as uncontrolled levels can lead to severe complications. This patent addresses the challenge of providing precise, continuous glucose management, potentially improving patient outcomes by reducing the burden on medical staff and reacting faster than manual adjustments. Automated systems like this are foundational for modern critical care. ## Frequently asked questions ### What does How a Computer System Automatically Adjusts Blood Sugar in Real-Time cover? 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. ### Who owns patent US 8956321? Ideal Medical Technologies owns this patent, granted in 2015. ### When does this patent expire? This patent is expected to expire on February 26, 2030, when the invention enters the public domain. ### What is patent US 8956321 cited by? This patent has been cited by 8 later patents that build on its ideas. ### What problem does this patent solve? Maintaining stable blood glucose levels is critical for patients in intensive care, during surgery, or after trauma, as uncontrolled levels can lead to severe complications. This patent addresses the challenge of providing precise, continuous glucose management, potentially improving patient outcomes by reducing the burden on medical staff and reacting faster than manual adjustments. Automated systems like this are foundational for modern critical care. ### What does this patent NOT cover? Does not cover systems that only monitor blood glucose without automatically adjusting medication delivery. **Full plain-English explainer:** https://patentbrief.org/patent/us/8956321/computerized-system-for-blood-chemistry-monitoring **Original patent:** https://patents.google.com/patent/US8956321 --- _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: - [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 Medical Monitors Adapt Oxygen Alarms to Reduce False Alerts](https://patentbrief.org/patent/us/RE47218/tysabri-dosing) — This patent describes an adaptive alarm system for medical patient monitors that dynamically adjusts oxygen saturation thresholds based on recent patient data, aiming to reduce unnecessary alerts. - [Smart Clothing That Compares Pulse Signals from Both Sides of Your Body](https://patentbrief.org/patent/us/20200281484/an-apparatus-for-monitoring-the-pulse-of-a-person-and-a-method-thereof) — This patent describes a piece of clothing, like a t-shirt, with built-in sensors in its sleeves or legs to measure and compare pulse characteristics from different limbs, helping to detect subtle health differences. - [How Two Special Antibodies Find Substances in Body Fluids](https://patentbrief.org/patent/us/4376110/psa-test-for-prostate-cancer) — This patent describes a "sandwich" method using two highly specific, man-made antibodies to detect and measure tiny amounts of specific substances, like disease markers, in a fluid sample. - [How Jarvik's Artificial Heart Uses Electric Motors to Pump Blood](https://patentbrief.org/patent/us/4173796/jarvik-artificial-heart) — A 1977 invention by Robert Jarvik that uses a reversible electric motor to power a hydraulic pump, enabling artificial hearts to mimic the natural pumping action of a human heart.