Multi-point puncture positioning mechanism based on liver cancer radio frequency ablation

Abstract

The invention aims to solve the problem of difficulty in accurate positioning and guiding during puncture in the prior art, and discloses a multi-point puncture positioning mechanism based on liver cancer radio frequency ablation. The mechanism comprises a guide rod, a protective layer, a supporting plate, an anti-slip layer, a pull ring, a baffle plate, a first spiral spring, a sliding rod, a clamp plate, a guide plate, a connecting block, a sliding block, a second spiral spring, a guide frame, a clamping plate, a positioning plate, a base, universal wheels, a supporting rod, a connecting rod, a holding ring, a lantern ring, a first fastening screw, a second fastening screw, an inner ring, an outer ring, a positioning rod, a mounting plate, a first laser lamp, a second laser lamp, a whiteboard, a fixing plate and a guide groove. The multi-point puncture positioning mechanism reasonably utilizes the cooperation of the first spiral spring and the second spiral spring to realize the pulling of the clamp plate on the skin of the obese patient, so that the loose proud flesh is supported tightly, and then accurate puncture is easier to be carried out during the puncture is carried out;and by combining the positioning and the guiding of the first laser lamp and the second laser lamp, it is convenient for the mechanism to carry out accurate puncture on the patient, and the mechanismmeets the social requirements.

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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