A fast repositionable powered support arm

Abstract

The invention discloses a power support arm capable of being repositioned quickly. The power support arm comprises a box body, wherein a fixing rod arranged in the horizontal direction is welded to the inner wall of the box body, movable cylinders arranged symmetrically movably sleeve the outer ring of the fixing rod, a threaded rod rotatably connected with the inner wall of the box body is arranged below the fixing rod, and the threaded rod is parallel to the fixing rod; connecting blocks in threaded connection with the threaded rod are welded to the bottoms of the ends, away from each other,of the two movable cylinders, and the bottoms of the connecting blocks are slidably connected with the inner wall of the bottom of the box body; racks are mounted on the tops of the two movable cylinders in the length directions of the two movable cylinders, and a support rod is welded to the middle of the top of the box body in the vertical direction. Through harmonious cooperation among different components, on the one hand, adjustment at any position can be achieved, and meanwhile, a traditional mode is much gentler and more stable; on the other hand, quick repositioning can be achieved, convenience is provided for reusage, and meanwhile, the power support arm is operated easily and quickly by a user.

Description

technical field [0001] The invention relates to the technical field of support arms, in particular to a rapidly repositionable power support arm. Background technique [0002] In many industrial and medical applications it is desirable to have a repositionable low profile arm capable of securing and supporting objects in space. For example, in the field of surgery, it is common to use multiple instruments and retractors simultaneously for different purposes, including exposure and visualization of the surgical site and performing the intended procedure. Since the surgeon can usually hold and manipulate only one instrument in one hand, surgical assistants or repositionable support arms are often used to hold additional instruments, the personnel operating range is narrow, and it is difficult to keep the instrument stable for a long time. Most repositionable support arms used are two or more arm segments held together by joints that are locked and unlocked by the surgeon or a...

AI Technical Summary

Problems solved by technology

Since the surgeon can usually hold and manipulate only one instrument in one hand, surgical assistants or repositionable support arms are often used to hold additional instruments, the personnel operating range is narrow, and it is difficult to keep the instrument stable for a long time. Most repositionable support arms used are two or more arm segments held together by joints that are locked and unlocked by the surgeon or assistant using one or more threaded knobs or threaded stems, if the joints are not If the device is sufficiently tightened, the device will "move freely", which may sometimes pose a significant risk to the patient, and it is difficult to apply the necessary force to the locking knob or rod to stabilize the device in the intended position and orientation. For this reason, we propose A rapidly repositionable powered support arm

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