Study on Estimation of the Gripping Force of Surgical Instruments Based on the Dynamic Model

The problem of estimating the gripping force of surgical instruments has been the focus of research on minimally invasive surgical robotic surgical instruments. During the minimally invasive surgery, excessive gripping force can cause tissue damage, and too small gripping force can make suture needl...

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Main Authors: Liu Fen, Liu Jiahao, Yun Jintian, Sang Hongqiang
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2024-04-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.04.006
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author Liu Fen
Liu Jiahao
Yun Jintian
Sang Hongqiang
author_facet Liu Fen
Liu Jiahao
Yun Jintian
Sang Hongqiang
author_sort Liu Fen
collection DOAJ
description The problem of estimating the gripping force of surgical instruments has been the focus of research on minimally invasive surgical robotic surgical instruments. During the minimally invasive surgery, excessive gripping force can cause tissue damage, and too small gripping force can make suture needles fall off and cause danger. Therefore, it is necessary to study how to estimate the gripping force of surgical instruments. According to the structural characteristics of surgical instruments, a method for estimating gripping force based on dynamic model is proposed. The dynamic model of the surgical instrument, the force and displacement transmission characteristics of the cable driven system and the direct-current motor characteristics are considered in the established model, and the relation between the surgical instrument motor current and the gripping force is obtained. The gripping force model is validated by using Matlab simulation, and the gripping force variation curve of the surgical instrument end-effector with the change of the motor current are obtained. The simulation results show that the gripping force estimation model of the surgical instrument based on the dynamic model is consistent with the actual situation, which provides a theoretical basis for the subsequent research on the gripping force security of the surgical instrument.
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id doaj-art-0cc89f7f6e0241f58e0aeeb0a3acabf5
institution Kabale University
issn 1004-2539
language zho
publishDate 2024-04-01
publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
series Jixie chuandong
spelling doaj-art-0cc89f7f6e0241f58e0aeeb0a3acabf52025-01-10T15:00:10ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392024-04-0148445055345973Study on Estimation of the Gripping Force of Surgical Instruments Based on the Dynamic ModelLiu FenLiu JiahaoYun JintianSang HongqiangThe problem of estimating the gripping force of surgical instruments has been the focus of research on minimally invasive surgical robotic surgical instruments. During the minimally invasive surgery, excessive gripping force can cause tissue damage, and too small gripping force can make suture needles fall off and cause danger. Therefore, it is necessary to study how to estimate the gripping force of surgical instruments. According to the structural characteristics of surgical instruments, a method for estimating gripping force based on dynamic model is proposed. The dynamic model of the surgical instrument, the force and displacement transmission characteristics of the cable driven system and the direct-current motor characteristics are considered in the established model, and the relation between the surgical instrument motor current and the gripping force is obtained. The gripping force model is validated by using Matlab simulation, and the gripping force variation curve of the surgical instrument end-effector with the change of the motor current are obtained. The simulation results show that the gripping force estimation model of the surgical instrument based on the dynamic model is consistent with the actual situation, which provides a theoretical basis for the subsequent research on the gripping force security of the surgical instrument.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.04.006Surgical instrumentDynamic modelCable driveGripping force
spellingShingle Liu Fen
Liu Jiahao
Yun Jintian
Sang Hongqiang
Study on Estimation of the Gripping Force of Surgical Instruments Based on the Dynamic Model
Jixie chuandong
Surgical instrument
Dynamic model
Cable drive
Gripping force
title Study on Estimation of the Gripping Force of Surgical Instruments Based on the Dynamic Model
title_full Study on Estimation of the Gripping Force of Surgical Instruments Based on the Dynamic Model
title_fullStr Study on Estimation of the Gripping Force of Surgical Instruments Based on the Dynamic Model
title_full_unstemmed Study on Estimation of the Gripping Force of Surgical Instruments Based on the Dynamic Model
title_short Study on Estimation of the Gripping Force of Surgical Instruments Based on the Dynamic Model
title_sort study on estimation of the gripping force of surgical instruments based on the dynamic model
topic Surgical instrument
Dynamic model
Cable drive
Gripping force
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.04.006
work_keys_str_mv AT liufen studyonestimationofthegrippingforceofsurgicalinstrumentsbasedonthedynamicmodel
AT liujiahao studyonestimationofthegrippingforceofsurgicalinstrumentsbasedonthedynamicmodel
AT yunjintian studyonestimationofthegrippingforceofsurgicalinstrumentsbasedonthedynamicmodel
AT sanghongqiang studyonestimationofthegrippingforceofsurgicalinstrumentsbasedonthedynamicmodel