Key result
A novel grinding tool effectively removed simulated calcified tissue, with grinding force, temperature, and debris size influenced by tool diameter and rotational speed.
Why the study?
During coronary rotational atherectomy, excessive grinding force, temperature, and debris size can cause serious surgical complications and endanger patient life.
Does a novel grinding tool design and varying grinding parameters affect grinding force, temperature, and debris size in simulated calcified tissue?
Does a novel grinding tool design and varying grinding parameters affect grinding force, temperature, and debris size in simulated calcified tissue?
A novel grinding tool for coronary rotational atherectomy demonstrates that tool diameter and rotational speed significantly impact grinding force, temperature, and debris size in simulated calcified tissue, providing guidance for clinical operations.
Answers are grounded in this paper and cite their sources.
Novel burr enables safe two-phase atherectomy in preclinical models; leaves open clinical translation and outcome benefits in patients.
Coronary rotational atherectomy (CRA) means of use a tiny grinding tool to rotate at high speed in the blood vessels, so as to remove calcified tissue, effectively enlarge the inner diameter of the vessels, which is an important tool for the treatment of cardiovascular calcified blockage. However, excessive grinding force, temperature and debris size can lead to serious surgical complications and endanger the patient life during CRA. This study introduces the design, fabrication and performance verification process of a novel grinding tool, and investigates the influence of tool geometrical parameters and grinding parameters The experimental results showed that: the novel grinding tool can effectively remove the simulated calcified tissue by grinding. The geometrical size of tools plays an important effect on the grinding properties, which can result in increasing grinding force, temperature and debris size with the increase of tool diameters. In addition, with the increase of rotational speed, the grinding force and temperature increase gradually, while the debris size decreases as the rotational speed increases. The increasing inner diameter of bone can also lead to a decrease in grinding force and temperature slightly. All the obtained results can give effective guidance for clinical operations.
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Zhu et al. (2022) studied Coronary artery calcification. Novel grinding tool for coronary rotational atherectomy was evaluated on Grinding properties (grinding force, temperature, and debris size). A novel grinding tool effectively removed simulated calcified tissue, with grinding force, temperature, and debris size influenced by tool diameter and rotational speed.
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