The invention of microwave surgical scissors for seamless coagulation and cutting

Surgery Today
Tohru TaniDang Tran Khiem

Abstract

We developed a microwave energy-based scissors device (MWCX) that is capable of performing cutting and coagulation using 2.45 GHz microwave energy. This paper aims to present the concept of the device and assess the basic functions including the hemostasis, cutting, and sealing abilities. Seven beagle dogs were used in our experiments. In six dogs, we measured the coagulation time (CT), lateral thermal injury (LTI), bursting pressure (BP). The dogs were then subjected to re-laparotomy 1 week later to allow us to investigate the results. In one dog, the same factors and the quantities of smoke and mist emitted were compared to those observed when using a Harmonic Focus (HF) device. At 60 W, the MWCX could cut and seal small (5 s, diameter 1-2 mm) and medium-sized (10 s, 3-4 mm) vessels with complete hemostasis. The liver (length 2 cm) was cut for 30 s. Harvested vessels were sealed for 10 s (artery, 17 times; vein, six times). The mean BP was 887. 8 ± 41.5 mmHg in the medium arteries and 457.2 ± 118.0 mmHg in veins, with a mean diameter of 4.5 ± 1.3 mm. In a comparative study, the MWCX showed similar results to the HF with regard to the CT, BP and LTI, and emitted less smoke and mist. The MWCX showed similar levels of functional...Continue Reading

References

Feb 1, 1985·World Journal of Surgery·K TabuseK Mori
Apr 20, 2007·International Journal of Clinical Oncology·Yoshimasa KurumiShigehiro Morikawa
Feb 22, 2008·Urology·Courtney K PhillipsJaime Landman
May 9, 2008·AORN Journal·Brenda C Ulmer
May 17, 2008·Surgical Endoscopy·William L NewcombDavid A Iannitti
Dec 24, 2010·Critical Reviews in Biomedical Engineering·Christopher L Brace
Jun 4, 2013·American Journal of Surgery·Katsushi TakebayashiTohru Tani

❮ Previous
Next ❯

Citations

Jun 11, 2019·Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research·Khiem Tran DangTohru Tani
Feb 13, 2021·Asian Journal of Endoscopic Surgery·Takeshi MimuraYoshinori Yamashita
Dec 3, 2021·Journal of Hepato-biliary-pancreatic Sciences·Haruki MoriMasaji Tani

❮ Previous
Next ❯

Related Concepts

Related Feeds

Blood Clotting Disorders

Thrombophilia includes conditions with increased tendency for excessive blood clotting. Blood clotting occurs when the body has insufficient amounts of specialized proteins that make blood clot and stop bleeding. Here is the latest research on blood clotting disorders.

Related Papers

JSLS : Journal of the Society of Laparoendoscopic Surgeons
Claudio Peixoto CrispiMarlon de Freitas Fonseca
Journal of Laparoendoscopic & Advanced Surgical Techniques. Part a
Alfredo M CarbonellB T Heniford
Minimally Invasive Therapy & Allied Technologies : MITAT : Official Journal of the Society for Minimally Invasive Therapy
E KanehiraK Omura
© 2022 Meta ULC. All rights reserved