Journal Article

Wireless, Smart Hemostasis Device with All‐Soft Sensing System for Quantitative and Real‐Time Pressure Evaluation

Kai, Lin, Liang, Jie, Chen, Feng, Meng, Xianglin, Chen, Sicheng, Zhang, Chengjun, Yang, Qing, Luo, Zexiang, Li, Haoyu

2023

Overview

The properly applied pressure between the skin and hemostasis devices is an essential parameter for preventing bleeding and postoperative complications after a transradial procedure. However, this parameter is usually controlled based on the subjective judgment of doctors, which might cause insufficient hemostatic effect or thrombosis. Here this study develops a compact and wireless sensing system for continuously monitoring the pressure applied on the radial artery and wrist skin in clinical practice. A liquid metal (LM)‐based all‐soft pressure sensor is fabricated to enable conformal attachment between the device and skin even under large deformation conditions. The linear sensitivity of 0.007 kPa−1 among the wide pressure range of 0–100 kPa is achieved and the real‐time detection data can be wirelessly transmitted to mobile clients as a reference pressure value. With these devices, detailed pressure data can be collected, analyzed, and stored for medical assistance as well as to improve surgery quality. This work develops a wireless sensing system upon a hemostasis device. The system consists of liquid metal‐based all‐soft capacitive pressure sensors, tiny reading circuits with low‐power transmission functions, and software‐based model deployment. With these devices, detailed pressure data on retracting operations can be collected, analyzed, and stored for medical assistance as well as improving surgery quality.

• Publisher: John Wiley & Sons, Inc,Wiley
• Subject: all‐soft pressure sensors / compact and wireless sensing systems / Design / Electrodes / Energy consumption / femtosecond laser / liquid metals / Power supply / Sensors / smart hemostasis devices / User interface / Venous access