Development of contactless cauterization device for surgery using a steam-jet


  • Hitoshi Yoshiki Tokyo Institute of Technology
  • Kotaro Tadano Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology, Japan
  • Daisuke Ban Department of Hepatobiliary-Pancreatic Surgery, Tokyo Medical and Dental University, Japan
  • Katsuhiro Ohuchi Department of Advanced Surgical Technology Research and Development, Tokyo Medical and Dental University, Japan
  • Minoru Tanabe Department of Hepatobiliary-Pancreatic Surgery, Tokyo Medical and Dental University, Japan
  • Kenji Kawashima Department of Biomechanics, Tokyo Medical and Dental University, Japan



Coagulation, Compressible flow, Condensation heat transfer, In-vivo experiment, Prototype, Surgical instruments, Steam jet


To improve outcomes in surgery, surgical energy devices which perform coagulation and cauterization with shorter operating time, less thermal injury, and less adherence are required. In this paper, basic principles and cauterization mechanisms of cauterization method with steam-jet were studied.  The steam-jet coagulator (SJC) was newly developed with dry-steam generator for effective heat-transfer with steam. The condensation heat-transfer coefficient at the surface was estimated through thermofluidic simulations and experimental temperature distributions inside the heated object by impinging steam-jet. The steam-jet of 10kPa(G) and 30kPa(G) were estimated to have the heat-transfer coefficients larger than 5.0×105 W/m2 under several design parameters. Histological images of coagulated hepatic tissues with the SJC, the bipolar electrocautery device, and the bipolar with the saline irrigation method were compared. The comparison revealed that steam-jet can coagulate tissue denser and can seal sinusoids better than the ones coagulated with the bipolar electrocautery device even if the saline irrigation method was used. Successful coagulation and cauterization were performed on the in-vivo experiment using porcine liver, and thus the feasibility of the proposed method was confirmed. Our findings represent the engineering principles, the histological mechanisms, and the feasibility in in-vivo situations of the contactless cauterization device using a steam-jet.


(1) Feldman, L.S., et al., The SAGES Manual on the Fundamental Use of Surgical Energy (FUSE). 2012, New York: Springer-Verlag (United States).

(2) Rassweiler, J., et al. The past, present and future of minimally invasive therapy in urology: a review and speculative outlook. Minimally Invasive Therapy & Allied Technologies, 2013. 22(4): p. 200-209.

(3) Lang, B.H., et al., A Systematic Review and Meta-analysis Comparing the Efficacy and Surgical Outcomes of Total Thyroidectomy Between Harmonic Scalpel Versus Ligasure. Annuals of Surgical Oncology, 2013. 20(6): p. 1918-1926.

(4) Lorenzo, N.D., et al., Radiofrequency versus ultrasonic energy in laparoscopic colorectal surgery: a metaanalysis of operative time and blood loss. Surgical Endoscopy, 2012. 26(10): p.2917-2924.

(5) Wu, M.P., et al., Complications and recommended practices for electrosurgery in laparoscopy. The American Journal of Surgery, 2000. 179 (1): p. 67-73.

(6) Milsom, J.W., et al., Laparoscopic Colorectal Surgery, 2nd edition ed2006, New York: Springer-Verlag (United States).

(7) Yoshiki, H., et al., Surgical Energy Device using Steam Jet for Robotic Assisted Surgery. Proceedings of 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Milan, Italy, 2015. p. 6872-6875.

(8) Wagner W., et al., The IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use, Journal of Physical and Chemical Reference Data, 2002. 31(2): p. 387-535.

(9) Hay D.J., Electrosurgery, Surgery, 2007. 26(2): p. 66-69.

(10) Denys A.L., et al., Radio-frequency tissue ablation of the liver: in vivo and ex vivo experiments with four different systems. European Radiology, 2003. 13(10): p. 2346-2352.

(11) Boutros C., et al., Microwave coagulation therapy for hepatic tumors: Review of the literature and critical analysis. Surgical Oncology, 2010. 19(1): e22-e32.

(12) Raiser J., et al., Argon plasma coagulation for open surgical and endoscopic applications: state of the art. Journal of Physics D: Applied Physics, 2006. 39: p. 3520-3523.

(13) Sankaranarayanan, G., et al., Common uses and cited complications of energy in surgery, Surgical Endoscopy, 2013. 27(9): p. 3056-3072.




How to Cite

Yoshiki, H., Tadano, K., Ban, D., Ohuchi, K., Tanabe, M., & Kawashima, K. (2016). Development of contactless cauterization device for surgery using a steam-jet. Journal of Biomedical Engineering and Medical Imaging, 3(6), 01.