Effect of chaos-driving motion of patient robot in nursing practice

Yasushi Mae, Mamoru Minami, Akiko Sakai, Takeo Ohnishi, Kanji Tanaka

Research output: Contribution to journalArticlepeer-review


This paper proposes a patient robot system for nursing students to practice injection training and describes verifications of the training effects. A prototype of a patient robot has been designed and developed with the functions of letting the students inject to its vein and expressing countenances and emotional behaviors to make the robot system be seen similar to actual human. Challenging how to achieve the objective of providing the student trainees with the feeling as if they are nursing actual human, we propose to utilize chaotic transitions generated by non-linear dynamics to avoid repeating actions. The motion of the patient robot is generated according to the internal state, which represents trainee's nursing behaviors recognized through the robot's eye-camera and chaos mimicking human's time-varying emotional transitions. The effects to the injection trainings of the patient robot have been evaluated by vital sign such as students' heart beating rate and questionnaire after practical injection trainings.

Original languageEnglish
Pages (from-to)2628-2637
Number of pages10
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Issue number770
Publication statusPublished - Oct 2010
Externally publishedYes


  • Chaos and fractal
  • Human-Robot-Interaction
  • Medical and welfare assistance
  • Patient robot

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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