USPTO Patent Application: Infusion Pump with Air Bubble Detection

ChangeBridge: Patent Apps - Medical Devices (A61M)

Published September 19th, 2025

Detected March 26th, 2026

Summary

The USPTO has published a patent application (US20260083903A1) for an infusion pump with an air bubble detection method. The invention utilizes an ultrasonic sensor and an imaging device to detect gas bubbles and particles in infusion fluids, aiming to enhance patient safety.

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What changed

This document is a USPTO patent application (US20260083903A1) filed on September 19, 2025, for an "Infusion pump with air bubble detection method." The application details a system employing an ultrasonic sensor and an imaging device with a camera to detect gas bubbles and particles within an infusion line. The technology aims to monitor bubble size and movement, enhancing the safety of fluid delivery.

This patent application does not impose any immediate regulatory obligations. However, it represents a technological advancement in medical device safety that may influence future product development and regulatory considerations for infusion pump manufacturers. Companies in this sector should be aware of emerging technologies in patient safety and fluid monitoring.

Source document (simplified)

← USPTO Patent Applications

INFUSION PUMP WITH AIR BUBBLE DETECTION AND METHOD FOR OPERATING AN INFUSION PUMP FOR AIR BUBBLE DETECTION

Application US20260083903A1 Kind: A1 Mar 26, 2026

Inventors

Jan Schwarz, Sebastian Moeller

Abstract

An infusion pump has a sensor arrangement and an infusion line or a holding device with a holding region for an infusion line. An ultrasonic sensor and an imaging device with a camera are arranged on the outer circumference of the holding region of the holding device or on the outer circumference of the infusion line. At least the imaging device is configured to detect gas bubbles and, preferably, to detect particles in an infusion fluid. At least the imaging device is preferably configured to detect a size and to detect a change in the size of the gas bubbles and/or to detect movement of the gas bubbles, and preferably particles. The ultrasonic sensor preferably performs an initialization by detecting the infusion fluid in the infusion line and, if necessary, detecting gas bubbles.