A multi-point puncture positioning mechanism based on radiofrequency ablation of liver cancer

Abstract

The purpose of the present invention is to solve the existing difficult problem of accurate positioning and guidance during puncture, and discloses a multi-point puncture positioning mechanism based on radiofrequency ablation of liver cancer, including a guide rod, a protective layer, a support plate, an anti-skid layer, Pull ring, baffle plate, first coil spring, slide bar, splint, guide plate, connecting block, slider, second coil spring, guide frame, clamping plate, positioning plate, base, universal wheel, support rod, connecting rod , grip ring, collar, first fastening screw, second fastening screw, inner ring, outer ring, positioning rod, mounting plate, first laser light, second laser light, white board, fixing plate and guide groove. The present invention rationally utilizes the cooperation of the first coil spring and the second coil spring to realize the pull of the splint on the skin of the obese patient, tighten the loose fat, and make it easier to perform accurate puncture when puncturing. Combining the first laser light and the second The positioning and guidance of the second laser light is convenient for accurate puncture of patients, which meets social needs.

Description

technical field [0001] The invention relates to the field of radiofrequency ablation of liver cancer, in particular to a multi-point puncture positioning mechanism based on radiofrequency ablation of liver cancer. Background technique [0002] It is also found in any part of the world that chronic liver disease from any cause may play an important role in the occurrence and development of liver cancer. Both epidemiological and experimental studies have shown that viral hepatitis has a specific relationship with the occurrence of primary liver cancer. At present, there are three types of viral hepatitis that are more clearly related to liver cancer: B, C and D. About 90% of patients with liver cancer in my country have a background of hepatitis B virus (HBV) infection. Other risk factors include alcoholic cirrhosis, hepatic adenoma, chronic aflatoxin intake, other types of chronic active hepatitis, Wilson disease, tyrosinemia, and glycogen storage disease. [0003] For some...

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Problems solved by technology

[0005] The application number is CN201710734676.7 Abdominal CT liver tissue biopsy positioning method under the guidance of mimics three-dimensional reconstruction, in which the mimics program is used to establish a 3D model of the tissue around the liver, the liver puncture is simulated in the computer, and the surface skin positioning parameters of the puncture are calculated, but This kind of simulated puncture is just a simulated puncture, and the modeling is cumbersome, which delays the treatment time of the patient. During the actual operation, due to the uncertainty of the body, there will be puncture deviations.

[0006] However, in medicine, radiofrequency ablation of the liver is performed through puncture. During the puncture, if the patient is fat, the depth of puncture will be affected, and it will be difficult to accurately eliminate the tumor. Moreover, in When performing puncture, clinically, doctors usually hold the puncture needle for puncture. For experienced doctors, they can hold the puncture needle stably and realize the puncture of the human body. However, regarding the angle of inclination of the puncture needle, and The position of the puncture is not marked intuitively, which will affect the accuracy of the puncture, especially for inexperienced doctors, it will be difficult to accurately puncture the patient, which will increase the pain of the patient. Therefore, it is necessary to design A multi-point puncture positioning mechanism based on radiofrequency ablation of liver cancer to solve the shortcomings of the existing technology

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