<i>Ex</i>-<i>Vivo</i> Identification of Tumor From Parenchyma in Human Liver Using Electrochemical Impedance Spectroscopy on a Needle

Kim, Jinhwan; Yun, Joungil; Kim, Kwang-Hyun; Kim, Nah Ihm; Kim, Hee Joon; Lee, Jong‐Hyun

doi:10.1109/jsen.2020.3008722

Cited by 4 publications

(2 citation statements)

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“…[ 28 ] Based on the electrical impedance measurement, differences in electrical properties between different tissue types such as skin, fat, muscle, cancerous tissue, and intra‐abdominal cavity during laparoscopic surgery have been thoroughly investigated, which greatly ensures the usefulness of impedance‐based tissue discrimination. [ 27 , 28 , 29 , 30 , 31 ] For another method, electrode formation using stainless‐steel micro‐wires for impedance measurement has been demonstrated [ 32 ] (Figure 2a(ii) ). Because micro‐wires were directly integrated and arranged on the surface, distinct measurement configurations were achieved, such as the multi‐point impedance sensing and 4‐electrode configuration for minimal electrode polarization effect.…”

Section: Sensor‐integrated Medical Needlementioning

confidence: 99%

A Review of Recent Advancements in Sensor‐Integrated Medical Tools

Park,

Seo,

Jeong

et al. 2024

Advanced Science

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A medical tool is a general instrument intended for use in the prevention, diagnosis, and treatment of diseases in humans or other animals. Nowadays, sensors are widely employed in medical tools to analyze or quantify disease‐related parameters for the diagnosis and monitoring of patients’ diseases. Recent explosive advancements in sensor technologies have extended the integration and application of sensors in medical tools by providing more versatile in vivo sensing capabilities. These unique sensing capabilities, especially for medical tools for surgery or medical treatment, are getting more attention owing to the rapid growth of minimally invasive surgery. In this review, recent advancements in sensor‐integrated medical tools are presented, and their necessity, use, and examples are comprehensively introduced. Specifically, medical tools often utilized for medical surgery or treatment, for example, medical needles, catheters, robotic surgery, sutures, endoscopes, and tubes, are covered, and in‐depth discussions about the working mechanism used for each sensor‐integrated medical tool are provided.

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Section: Sensor‐integrated Medical Needlementioning

confidence: 99%

A Review of Recent Advancements in Sensor‐Integrated Medical Tools

Park,

Seo,

Jeong

et al. 2024

Advanced Science

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“…Jinhwan Kim et al researched the utilization of an improved EoN in bioimpedance measurement of hepatocellular carcinomas (HCC), cirrhotic liver parenchyma (CLP), normal liver parenchyma (NLP), and metastatic tumour in normal liver (MLT) [30]. The new EoN was comprised of IDEs and straight electrodes (SEs).…”

Section: B Applications Of the Novel Sensing Needle In Pathological T...mentioning

confidence: 99%

Electronic sensing and ablation needles for medical diagnosis and treatment

Limpabandhu

Tse

2023

Preprint

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Electronic biopsy sensing needle caught researchers’ interest as they cause minimal damage to patient’s viscera and vascular tissues and utilize AC voltage to measure the bioimpedance changes in pathological tissue. Researchers have studied the application of bioimpedance sensing in needle-based devices to diagnose cancer, extravasation, and neuromuscular disease. Electrical Impedance Spectroscopy and Electrochemical Impedance Spectroscopy (EIS) have been selected technique to analyse the electrical properties of bio-tissues. Biopsy sensing needles are classified into conventional needles and novel needles, differing in their structure and technique application. Conventional needles consisted of an inner element (a metal wire) and an outer element (a metal cannula), which are electrically isolated. The majority of novel needles are comprised of new sensors/electrodes on the surface of the needle shaft, with the needles being fabricated using new materials and methods. Novel techniques such as RF wirelessly powering, ultrasonic wirelessly powering, and electrolytic non-thermal ablation were researched in RF ablation. This review paper focuses on presenting the applications of electronic needles in medical diagnosis and treatment. The experiment results of pathological detection by conventional sensing needles are presented. Then, the structure, material, fabrication methods, and test results of novel sensing needles are introduced. Furthermore, novel tissue discrimination methods and novel RF ablation needles are introduced. Finally challenges and future work are discussed.

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