Introduction: This paper presents the design, development, and usability evaluation of a custom haptic syringe aimed to improve the realism of a virtual reality local anesthesia simulation (VRLA), specifically for the...Introduction: This paper presents the design, development, and usability evaluation of a custom haptic syringe aimed to improve the realism of a virtual reality local anesthesia simulation (VRLA), specifically for the inferior alveolar nerve block (IANB), that formally used a head mounted device (HMD) and vibration feedback via hand controllers. The custom haptic syringe interface provides a more realistic tactile sensation of plunging a real syringe in a human patient. This pilot study investigated the usability of the custom haptic syringe to replace one of the hand controllers to provide a more realistic and better training experience. Method: A one group pre-post survey investigated student perceptions regarding the effectiveness and usability of a haptic syringe to provide a more realistic experience to train dental students to learn the procedural steps to inject local anesthesia into a virtual patient. Twenty-two third year dental students participated. The pre-post survey examined changes in students’ perceived emotions, preparedness, and effectiveness of the VRLA as a foundational learning strategy prior to entering clinical group practice. Results: While quantitative results on comparable survey questions did not yield statistically significant differences, qualitative open-ended responses revealed a much greater satisfaction using the custom haptic syringe compared to the out of the box controllers. Conclusions: Feedback regarding the haptic syringe showed a substantial step closer to providing a more real experience for students in an effort to create a better bridge between classroom learning and clinical practice in order to prepare students to more confidently and competently work with real clients. Further refinement of the syringe is forthcoming along with a more formal comparative experimental study.展开更多
Haptic pulse reproduction technology enables physicians to conduct remote,contact-free pulse diagnosis by transcending temporal and spatial constraints in traditional medical practice.However,current systems face chal...Haptic pulse reproduction technology enables physicians to conduct remote,contact-free pulse diagnosis by transcending temporal and spatial constraints in traditional medical practice.However,current systems face challenges in accurately reproducing realistic pulse haptic feedback,which impacts diagnostic reliability.Here,we developed an electroosmotic hydraulic-based pulse haptic reproduction interface(PHRI)system that can precisely reproduce realistic haptic information of the human pulse.This PHRI system demonstrates the rapid response and precise control of electroosmotic hydraulics,achieving a frequency response of 500 Hz and an output force of 100 mN at 160 V driving voltage.Besides,time-domain and frequency-domain analyses further confirm high accuracy,with a correlation coefficient of 0.99 between reproduced and actual pulses.When tested under varying pressures,the PHRI system shows a small root mean square error of<1 Pa in frequency spectra.This PHRI technology provides a robust platform for remote pulse diagnosis and advances the integration of traditional Chinese medicine with telemedicine systems.展开更多
文摘Introduction: This paper presents the design, development, and usability evaluation of a custom haptic syringe aimed to improve the realism of a virtual reality local anesthesia simulation (VRLA), specifically for the inferior alveolar nerve block (IANB), that formally used a head mounted device (HMD) and vibration feedback via hand controllers. The custom haptic syringe interface provides a more realistic tactile sensation of plunging a real syringe in a human patient. This pilot study investigated the usability of the custom haptic syringe to replace one of the hand controllers to provide a more realistic and better training experience. Method: A one group pre-post survey investigated student perceptions regarding the effectiveness and usability of a haptic syringe to provide a more realistic experience to train dental students to learn the procedural steps to inject local anesthesia into a virtual patient. Twenty-two third year dental students participated. The pre-post survey examined changes in students’ perceived emotions, preparedness, and effectiveness of the VRLA as a foundational learning strategy prior to entering clinical group practice. Results: While quantitative results on comparable survey questions did not yield statistically significant differences, qualitative open-ended responses revealed a much greater satisfaction using the custom haptic syringe compared to the out of the box controllers. Conclusions: Feedback regarding the haptic syringe showed a substantial step closer to providing a more real experience for students in an effort to create a better bridge between classroom learning and clinical practice in order to prepare students to more confidently and competently work with real clients. Further refinement of the syringe is forthcoming along with a more formal comparative experimental study.
基金supported by the National Natural Science Foundation of China(Grant No.21927808).
文摘Haptic pulse reproduction technology enables physicians to conduct remote,contact-free pulse diagnosis by transcending temporal and spatial constraints in traditional medical practice.However,current systems face challenges in accurately reproducing realistic pulse haptic feedback,which impacts diagnostic reliability.Here,we developed an electroosmotic hydraulic-based pulse haptic reproduction interface(PHRI)system that can precisely reproduce realistic haptic information of the human pulse.This PHRI system demonstrates the rapid response and precise control of electroosmotic hydraulics,achieving a frequency response of 500 Hz and an output force of 100 mN at 160 V driving voltage.Besides,time-domain and frequency-domain analyses further confirm high accuracy,with a correlation coefficient of 0.99 between reproduced and actual pulses.When tested under varying pressures,the PHRI system shows a small root mean square error of<1 Pa in frequency spectra.This PHRI technology provides a robust platform for remote pulse diagnosis and advances the integration of traditional Chinese medicine with telemedicine systems.
