We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us
Detecto

Download Mobile App




Events

ATTENTION: Due to the COVID-19 PANDEMIC, many events are being rescheduled for a later date, converted into virtual venues, or altogether cancelled. Please check with the event organizer or website prior to planning for any forthcoming event.
19 Jan 2023 - 21 Jan 2023

Robotic Magnetic System for PCI Could Minimize Physicians’ Exposure to X-Ray Radiation

By HospiMedica International staff writers
Posted on 10 Jun 2022
Print article
Image: Electromagnetically controllable microrobotic interventional system (Photo courtesy of DGIST)
Image: Electromagnetically controllable microrobotic interventional system (Photo courtesy of DGIST)

Percutaneous coronary intervention (PCI) involves introducing a guidewire through the large femoral artery in the groin or the radial artery in the wrist and expertly manipulating it until it reaches the largest blood vessel in the body, the aorta. A contrast agent is then injected into the aorta, where it spreads into the coronary arteries that feed the heart. X-ray images are then taken to pinpoint any blockages present in these arteries. This intervention requires a huge amount of skill and can still lead to vessel perforation. It also involves unnecessary exposure of the physician to X-ray radiation, as the procedure is conducted at the patient’s bedside. Now, researchers have developed a medical robotic apparatus that uses an external magnetic field to precisely and remotely control guidewires through tiny and tortuous blood vessels. The apparatus could also minimize the exposure of physicians to X-ray radiation while looking for and treating narrowed or blocked blood vessels

The system developed by a multidisciplinary team of robotics and electronic systems engineers working with cardiologists and materials scientists led by researchers at Daegu Gyeongbuk Institute of Science and Technology (DGIST, Daegu, Korea) involves remotely controlling a magnetically steerable microrobotic guidewire by applying a controllable external magnetic field. The field is generated by an ‘electromagnetic actuation system’ made of eight electromagnets arranged in a hemispherical configuration under a surgical bed. The patient is meant to be placed on the bed, with the guidewire inserted into an artery and guided remotely by changing the magnetic field. The guidewire is made of a biocompatible silicone tube that can move through blood vessels with very little surface friction. The tip of the microrobotic tube encapsulates a neodymium-iron-boron permanent magnet and hard-magnetic composites for magnetic steering.

The researchers first tested the system using 2D- and 3D-printed blood vessel models. They then tested it in anaesthetized pigs, managing to remotely control the guidewires through small and tortuous arteries in the pelvis, kidneys and heart. More tests and improvements are still required, but the researchers are already planning to further modify their apparatus so it can also target vessels in the nervous system and lungs.

“Cardiovascular diseases are the leading cause of death worldwide, and it is very important to be able to diagnose and treat these diseases in the most minimally invasive way possible,” said DGIST robotics engineer Hongsoo Choi. “Our proposed electromagnetically controllable microrobotic interventional system (ECMIS) could reduce radiation exposure of physicians by empowering them to conduct the procedure remotely in an X-ray shielded control booth using low-strength magnetic fields. It also does not require the high level of training needed for conducting conventional PCIs.”

Related Links:
DGIST

BMP Whole Blood Analyzer: GEM Premier ChemSTAT
Gold Supplier
Ultrasound Transducer/Probe Cleaner
Transeptic Cleaning Solution
New
Endoscope Anti-Fogging Agent
ULTRASTOP
New
Avance CS²
Anesthesia Delivery System

Print article

Channels

AI

view channel
Image: EchoGo Heart Failure is the first and only AI-enabled HFpEF detection platform for echocardiography (Photo courtesy of Ultromics)

AI Solution for Echocardiography to Revolutionize Diagnosis of Heart Failure with Preserved Ejection Fraction

Heart failure with preserved ejection fraction (HFpEF) is a type of heart failure often associated with co-morbidities and tends to be caused by increased pressure within the chambers of the heart.... Read more

Surgical Techniques

view channel
Image: ActivSight Intelligent Light has received CE Mark approval (Photo courtesy of Activ Surgical)

Enhanced Imaging System to Become a Game-Changer in the OR by Revolutionizing Surgical Vision

Critical structure identification and tissue perfusion assessment are essential for patients to have the best possible chance of healing well without facing life-threatening or costly complications.... Read more

Patient Care

view channel
Image: Automated cleaning system allows endoscopes to be cleaned direct from clinic (Photo courtesy of Aston University)

World’s First Automated Endoscope Cleaner Fights Antimicrobial Resistance

Endoscopes are long, thin tubes with a light and camera at one end. Due to the sensitivity of the materials and electronics they cannot be sterilized in an autoclave (a machine that uses steam under pressure),... Read more

Health IT

view channel
Image: Using digital data can improve health outcomes (Photo courtesy of Unsplash)

Electronic Health Records May Be Key to Improving Patient Care, Study Finds

When a patient gets transferred from a hospital to a nearby specialist or rehabilitation facility, it is often difficult for personnel at the new facility to access the patient’s electronic health records... Read more

Business

view channel
Image: The global multiparameter patient monitoring systems market is expected to surpass USD 15 billion by 2028 (Photo courtesy of Unsplash)

Global Multiparameter Patient Monitoring Systems Market Driven by Rising Chronic Illnesses

Multi-parameter patient monitoring equipment is used to assess the vital signs of patients who are suffering from a serious illness. These devices are meant to give the number of data sets on one screen... Read more
Copyright © 2000-2022 Globetech Media. All rights reserved.