Design and Research of the Grasping Force Feedback Mechanism of Flexible Surgical Robots.

The international journal of medical robotics + computer assisted surgery : MRCAS 2024 Vol.20(4) p. e2667

Wang F, Wang Y, Pan Q, Luo J, Wang H, Kang X, Zhang X

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Abstract

[BACKGROUND] Robot-assisted microsurgery (RAMS) is gradually becoming the preferred method for some delicate surgical procedures. However, the lack of haptic feedback reduces the safety of the surgery. Surgeons are unable to feel the grasping force between surgical instruments and the patient's tissues, which can easily lead to grasping failure or tissue damage.

[METHODS] This paper proposes a tendon-driven grasping force feedback mechanism, consisting of a follower hand and a leader hand, to address the lack of grasping force feedback in flexible surgical robots. Considering the friction in the tendon transmission process, a grasping force estimation model is established for the follower hand. The admittance control model is designed for force/position control of the leader hand.

[RESULTS] Through experimental validation, it has been confirmed that the grasping force sensing range of the follower hand is 0.5-5 N, with a sensing accuracy of 0.3 N. The leader hand is capable of providing feedback forces in the range of 0-5 N, with a static force accuracy of 0.1 N.

[CONCLUSIONS] The designed mechanism and control strategy can provide the grasping force feedback function. Future work will focus on improving force feedback performance.

[TRIAL REGISTRATION] This research has no clinical trials.

추출된 의학 개체 (NER)

유형영어 표현한국어 / 풀이UMLS CUI출처등장
시술 microsurgery 미세수술 dict 1
해부 tissues scispacy 1
해부 tissue scispacy 1
해부 tendon scispacy 1
약물 [BACKGROUND] Robot-assisted scispacy 1
약물 [CONCLUSIONS] scispacy 1
기법 robot-assisted 로봇수술 dict 1
기타 patient scispacy 1

MeSH Terms

Humans; Robotic Surgical Procedures; Equipment Design; Feedback; Hand Strength; Microsurgery; Tendons; Reproducibility of Results

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