Vygon has filed a patent for a system that monitors tissue perfusion. The system includes a perfusion sensor and a pressure sensor, which are paired with a treatment unit. The treatment unit has a correcting module that determines and corrects any artifacts in the perfusion sensor caused by the pressure measured by the pressure sensor. A corresponding monitoring method is also described. GlobalData’s report on Vygon gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Vygon, wearable CPAP therapy was a key innovation area identified from patents. Vygon's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.

System for monitoring tissue perfusion with paired sensors and correction module

Source: United States Patent and Trademark Office(USPTO). Credit: Vygon SA

A recently filed patent (Publication Number: US20230139953A1) describes a system for monitoring tissue perfusion. The system includes a perfusion sensor and a pressure sensor that are paired with a treatment unit. The treatment unit has at least one correcting module that determines and corrects any artifacts in the perfusion sensor caused by the pressure measured by the pressure sensor.

The correcting module in the system applies a correcting parameter after the perfusion sensor sends a signal based on the signal received by the pressure sensor. This helps to ensure accurate monitoring of tissue perfusion.

Additionally, the system may include a deployment mechanism located near or at the perfusion sensor. This mechanism applies pressure to the tissue and the correcting module determines a counterpressure to apply based on the signal received by the pressure sensor. The system may also include a tubular catheter body equipped with both the perfusion sensor and the pressure sensor. The deployment mechanism can be an internal stint or an inflatable deployment balloon that extends over a part of the body section.

In some embodiments, the pressure sensor is radially disposed in the perfusion sensor, and the deployment balloon extends over a part of the body section. The system may also include a maintenance balloon at the end of the body and a stint where the perfusion sensor and the pressure sensor are diametrically opposite on the body.

The perfusion sensor in the system is a photo-plethysmography sensor, which is commonly used to measure blood flow and tissue perfusion.

The patent also describes a method for monitoring tissue perfusion through a catheter. The method involves monitoring the perfusion of the tissue at the catheter, monitoring the pressure applied by the tissue on the catheter, and correcting any artifacts in the perfusion monitoring based on the monitoring of the applied pressure. The correction step may involve applying a correcting parameter based on the signal from the perfusion monitoring of the applied pressure, as well as identifying the counterpressure to apply on the tissue based on the applied pressure monitoring.

Overall, this patent describes a system and method for monitoring tissue perfusion using a combination of perfusion and pressure sensors, along with correcting modules to ensure accurate measurements. The system has potential applications in various medical fields where monitoring tissue perfusion is crucial.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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