3 results about "Microtrauma" patented technology

This utility model discloses a minimally invasive scalpel sharpening fixture, including a positioning block. The positioning block includes a mounting surface with multiple protrusions. A receiving groove for accommodating a scalpel holder assembly is formed between the protrusions. A limiting protrusion that abuts against the scalpel holder assembly is provided within the receiving groove. The positioning block has a contoured mounting hole, through which a contoured limiting rod passes. The contoured limiting rod has a limiting position that extends out of the mounting surface and a retracted position that is received within the contoured mounting hole. In use, when the contoured limiting rod is in the limiting position, it can cooperate to limit and fix the scalpel holder assembly; when the contoured limiting rod is in the retracted position, it can avoid and, through the limiting protrusion, limit and fix another type of scalpel holder assembly. Therefore, this sharpening fixture is adaptable to different types of scalpel holder assemblies.

The present application relates to an optimization method for coupling of a prosthesis and a residual limb based on digital twinning. The anatomical structure characteristics and functional attributes of the residual limb skin, soft tissue and bone are fused with stress distribution data in multi-modal data fusion; a multi-layer digital residual limb relationship modeling is constructed; a multi-scale contact space composed of a structure adaptation area, a force transmission area and an energy buffer area of the residual limb and the prosthesis in dynamic behavior is defined; in the simulation of dynamic interaction, the shear force migration trajectory, stress concentration mode and soft tissue slip response between each micro unit of the coupling surface are simulated; the physical partition relationship of the coordination domain is constructed to assist in optimizing the structure and material function gradient of the prosthesis interface; the micro-injury area caused by the prosthesis in wearing and use is described, and the minimum tissue disturbance path is calculated; through deformation vector field analysis and thermal force coupling relationship modeling, the risk distribution of tissue fatigue induced by the prosthesis interface under long-time use is evaluated; dynamic multi-scale coupling optimization and multi-objective optimization control are realized to achieve fatigue risk visualization prediction and early warning.

The application provides an ultrasonic-assisted pain-reducing acupuncture micro-injection method and device, which comprises the following steps: S1, acquiring real-time ultrasonic images of an acupuncture part by using an ultrasonic imaging device to determine the position of a target acupoint and surrounding tissue structure information; S2, planning an injection path according to the acquired position of the target acupoint and surrounding tissue structure information, wherein the injection path avoids important blood vessels and nerves; and S3, slowly injecting an acupuncture needle into the skin along the planned injection path under the guidance of the ultrasonic images; the application acquires real-time ultrasonic images by using an ultrasonic imaging device, accurately determines the position of a target acupoint and surrounding tissue structure information, and plans an injection path that avoids important blood vessels and nerves, thereby greatly improving the injection accuracy; meanwhile, an ultrasonic-assisted pain-reducing module is started when the needle tip approaches the target acupoint, the ultrasonic vibration is used to reduce the pain of a patient, and the vibration amplitude and frequency are adjusted in real time according to the feedback of the patient, thereby realizing individualized pain reduction.