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The online version of the original article can be found at https://doi.org/10.1631/jzus.B2000190 Erratum to: J Zhejiang Univ-Sci B (Biomed & Biotechnol) 2020 21(10):779-795 https://doi.org/10.1631/jzus.B2000190.
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Objective:To design a toilet assistant device according with an ergonomics based on the natural sit-to-stand transition motion trajectory, to improve the safety and comfort for the older adults. Methods:The sit-to-stand transition motion trajectory was obtained at different speeds using Inertial Measurement Unit from twelve healthy subjects. The finite element contrastive pressures on toilet seat at 0°, 10°, 20°, 30°, 40° sitting inclination angles were compared from this trajectory to the other research trajectory, as well as the balance analysis after standing. A total of 20 healthy subjects experienced the toilet assistant device and reported their satisfaction. Results:At four angles of inclination, the average pressure of this trajectory was less than that of the other research; while the vertical projection of center of mass was within the range of center of pressure, satisfying the balance condition. Most of the subjects were satisfactory to the toilet assistant device. Conclusion:A new sit-to-stand transition motion trajectory has been obtained. A toilet assistant device based on the motion trajectory has been designed, which is comfortable and steady.
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Objective To analyze the clinical efficacy of laparoscopic totally extraperitoneal hernia repair(TEP) and traditional hernia repair in the treatment of inguinal hernia. Methods 94 inguinal hernia patients admitted in our hospital from January 2014 to August 2017 were randomly divided into two groups. 45 patients in the control group received conventional hernia repair and 49 patients in the study group received laparoscopic totally extraperitoneal hernia repair. The clinical treatment effects between the two groups were compared. Results The overall incidence of complications in the study group was 4. 08％, which was lower than 17. 78％ in the control group(P＜0. 05). The hospitalization cost of the study group was higher than that of the control group. The hospitalization time, postoperative pain time and operation time in the study group was lower than that in the control group (P＜0. 05). The recurrence rate (0％) in the study group was lower than 6. 67％ in the control group(P＜0. 05). There was no significant difference in SDSand SASscores between the two groups before treatment(P＞0. 05). After treatment, the scores in the study group were lower than those in the control group(P＜0. 05). Conclusion It is recommended to use TEPfor clinical treatment of inguinal hernia. Although this method is more expensive than conventional hernia repair, it can reduce the incidence of complications and make the disease recover quickly. It has great application value.