MEDICAL TOOL WITH LENGTH CONSERVATION MECHANISM FOR ACTUATING TENSION BANDS

• Main Author: HEYE ISABELLE
• Format: Patent
• Language: Chinese; English
• Published: 17.12.2021
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

An actuation assembly for a medical instrument connects four bands to three motorized degrees of freedom. The actuation assembly includes a first actuator, a second actuator and a third actuator. The first actuator is coupled to a first band and a second band, the first actuator being operable to pull in one of the first and second bands and feed out the other of the first and second bands. The third actuator is coupled to a third band and a fourth band, the third actuator being operable to pull in one of the third and fourth bands and feed out the other of the third and fourth bands. Each of the first, second, third, and fourth bands pass through a second actuator, and the second actuator is operable to increase the travel path of both the first and second bands or both the third and fourth bands. 用于医疗器械的致动组件将四个带连接到三个机动自由度。致动组件包括第一致动器、第二致动器和第三致动器。第一致动器联接到第一带和第二带，第一致动器可操作以拉入第一带和第二带中的一个并送出第一带和第二带中的另一个。第三致动器联接到第三带和第四带，第三致动器可操作以拉入第三带和第四带中的一个并送出第三带和第四带中的另一个。第一带、第二带、第三带和第四带中的每一个穿过第二致动器，并且第二致动器可操作以增加第一带和第二带二者或第三带和第