Surgical mechanical arm joint hydraulic locking power generator

Abstract

The invention discloses a surgical mechanical arm joint hydraulic locking power generator. The power generator comprises a supporting mechanism, a transmission mechanism, a thrust mechanism in electric control and a force-generating mechanism, wherein the thrust mechanism contains a lead screw housing; the lead screw housing is fixedly linked with a connection cover of the transmission mechanism,the center axle of the thrust mechanism is vertical to the axle of the transmission mechanism; the force-generating mechanism and the transmission mechanism both have symmetric structures, share the same axle and are fixedly locked through loop nuts arranged on the periphery of the force-generating mechanism, and the supporting mechanism is fixedly linked with the thrust mechanism. The invention provides a hydraulic power source of joint locking to ensure that the mechanical arm can be used as the puncture positioning device and supporting device for the surgery; and the power generator of the invention has the advantages of small volume, compact structure, light weight, large locking torque, convenient operation and maintenance, long service life and the like, and is applicable to joint positioning of the mechanical arm used in the minimally invasive sugery of neurosurgery, chest surgery, orthopeadic surgery, stomatology and the like.

Description

Technical field [0001] The invention relates to a hydraulic locking mechanism, in particular to a joint hydraulic locking power mechanism applied to a surgical manipulator arm, and belongs to a joint locking hydraulic driving device for a surgical manipulator arm. Background technique [0002] In recent years, with the rapid development of computer and image processing technology, surgery and surgery technology, and service robotics technology, as well as the increasing awareness of national health care, minimally invasive surgical robot technology for the purpose of improving the quality and efficiency of surgery has become a domestic and international One of the frontier research hotspots that scholars pay attention to has become an important industry direction that many companies pay attention to. At present, for the robotic arm for surgical puncture and positioning, the joints are locked by motors or electromagnetic brakes, which are realized by the position servo or holding ...

AI Technical Summary

Problems solved by technology

At present, for the mechanical arm for surgical puncture positioning, the joints are locked by motors or electromagnetic brakes, which are realized by the position servo or holding torque of the motor, or locked by electromagnetic brakes. The joint volume and weight are large, making the entire mechanical arm too heavy , which can rarely be used clinically

That is to say, a suitable joint locking drive device for surgical manipulators has not yet been found.

Especially for the joint locking of small, lightweight, high stiffness and high locking ability manipulators, no joint locking power mechanism based on hydraulically driven surgical manipulators has been found.

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