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Sixty endoscopic procedures assisted by remote-controlled laparoscope manipulator system, Naviot®, for endoscopic surgery
International Congress Series 1268 (2004) 1314
Sixty endoscopic procedures assisted by remote-controlled laparoscope manipulator system, NaviotR, for endoscopic surgery T. Yasunaga *, M. Hashizume, Y. Kakeji, E. Kobayashi, K. Tanoue, K. Konishi, S. Ieiri, Y. Kuga, H. Kawanaka, M. Tomikawa, M. Shimada, Y. Maehara, T. Dohi, I. Sakuma, S. Miyamoto Graduate School of Medical Sciences, Kyushu University, Japan
1. Introduction A major problem of the laparoscopic surgery is that the operative view depends on a laparoscopist, but not on an operator. We have developed a new remote-controlled laparoscope manipulator system, called NaviotR, which is not under voice control. 2. Methods NaviotR consists of a five-bar linkage mechanism, a holder arm, an actuator, an endoscope with an optical zoom. The man – machine interface of the NaviotR includes a hand controller with two buttons. By pushing the buttons, the operator can control the movement in eight different directions and the zooming of the laparoscope. Laparoscopic procedures were performed on 60 patients with NaviotR at 17 hospitals in Japan. We measured the operation time and analyzed the laparoscopic procedures. The patients operated with the NaviotR (Naviot group, n = 10) and the human camera holder (human camera group, n = 41) were compared on a cholecystectomy. 3. Results All procedures were successfully performed with NaviotR. The average of operation time (min) were 97 F 29 (cholecystectomy), 206 F 51 (colectomy), 292 F 53 (splenectomy), 120 F 10 (inguinal herniorrhaphy), 85 (appendectomy), 435 (prostatectomy), 140 (sympathectomy), 205 (extirpation of mediastinal tumor), 328 (lobectomy), 99 F 26 (oophorectomy and hysterectomy). There was no significant difference in operation time, blood loss, conversion rate to laparotomy, postoperative hospital stay, and frequency of analgesia for pain between two groups. 4. Conclusion The NaviotR did not affect the operative result compared with conventional laparoscopic cholecystectomy with human camera holder. We conclude the NaviotR is clinically useful as a surgical assistant of the camera holder.
* Corresponding author. Department of Disaster and Emergency Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi 812-8582, Fukuoka-shi, Japan. Tel.: +81-49-92-642-5993; fax: +81-49-92-642-5199. E-mail address: [email protected] (T. Yasunaga). 0531-5131/ D 2004 Published by Elsevier B.V. doi:10.1016/j.ics.2004.03.302
Sixty endoscopic procedures assisted by remote-controlled laparoscope manipulator system, NaviotR, for endoscopic surgery T. Yasunaga *, M. Hashizume, Y. Kakeji, E. Kobayashi, K. Tanoue, K. Konishi, S. Ieiri, Y. Kuga, H. Kawanaka, M. Tomikawa, M. Shimada, Y. Maehara, T. Dohi, I. Sakuma, S. Miyamoto Graduate School of Medical Sciences, Kyushu University, Japan
1. Introduction A major problem of the laparoscopic surgery is that the operative view depends on a laparoscopist, but not on an operator. We have developed a new remote-controlled laparoscope manipulator system, called NaviotR, which is not under voice control. 2. Methods NaviotR consists of a five-bar linkage mechanism, a holder arm, an actuator, an endoscope with an optical zoom. The man – machine interface of the NaviotR includes a hand controller with two buttons. By pushing the buttons, the operator can control the movement in eight different directions and the zooming of the laparoscope. Laparoscopic procedures were performed on 60 patients with NaviotR at 17 hospitals in Japan. We measured the operation time and analyzed the laparoscopic procedures. The patients operated with the NaviotR (Naviot group, n = 10) and the human camera holder (human camera group, n = 41) were compared on a cholecystectomy. 3. Results All procedures were successfully performed with NaviotR. The average of operation time (min) were 97 F 29 (cholecystectomy), 206 F 51 (colectomy), 292 F 53 (splenectomy), 120 F 10 (inguinal herniorrhaphy), 85 (appendectomy), 435 (prostatectomy), 140 (sympathectomy), 205 (extirpation of mediastinal tumor), 328 (lobectomy), 99 F 26 (oophorectomy and hysterectomy). There was no significant difference in operation time, blood loss, conversion rate to laparotomy, postoperative hospital stay, and frequency of analgesia for pain between two groups. 4. Conclusion The NaviotR did not affect the operative result compared with conventional laparoscopic cholecystectomy with human camera holder. We conclude the NaviotR is clinically useful as a surgical assistant of the camera holder.
* Corresponding author. Department of Disaster and Emergency Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi 812-8582, Fukuoka-shi, Japan. Tel.: +81-49-92-642-5993; fax: +81-49-92-642-5199. E-mail address: [email protected] (T. Yasunaga). 0531-5131/ D 2004 Published by Elsevier B.V. doi:10.1016/j.ics.2004.03.302