Puncture biopsy equipment for preoperative pathological diagnosis of liver cancer

A technology for pathological diagnosis and puncture biopsy, applied in the directions of inoculation and ovulation diagnosis, diagnosis, puncture needle, etc., can solve the problem of easy deviation of puncture biopsy, and achieve the effect of accurate puncture position and easy inspection.

Active Publication Date: 2021-12-24
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]The purpose of the present invention is to provide a biopsy device for preoperative pathological diagnosis of liver cancer, which has the advantage of accurate puncture position and solves the problem that the biopsy is prone to deviation

Method used

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  • Puncture biopsy equipment for preoperative pathological diagnosis of liver cancer
  • Puncture biopsy equipment for preoperative pathological diagnosis of liver cancer
  • Puncture biopsy equipment for preoperative pathological diagnosis of liver cancer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present invention provides a technical solution: a puncture biopsy device for preoperative pathological diagnosis of liver cancer, including an installation cylinder 1, a piston plate 42 is slidably connected to the installation cylinder 1, a slider 43 is fixedly connected to the piston plate 42, and the installation cylinder 1 There is a chute 11 that cooperates with the slider 43, the piston plate 42 fits the inner wall of the installation cylinder 1, the upper surface of the piston plate 42 is fixedly connected with the push rod 4, and the installation cylinder 1 is provided with a chute that cooperates with the push rod 4. The top of the push rod 4 is fixedly connected with a push plate 41, the lower surface of the piston plate 42 is fixedly connected with a first cylinder 44, and the bottom of the first cylinder 44 is coaxially fixedly connected with a second cylinder 45. A puncture needle 5 is installed on the barrel 45, a cylinder 2 is slidably connected to th...

Embodiment 2

[0032] Further on the basis of Embodiment 1, the outer diameter of the puncture needle 5 is equal to the inner diameter of the second cylindrical body 45, the second cylindrical body 45 is fixedly connected with an annular air bag 46, and the second cylindrical body 45 is slidably connected with a U-shaped positioning rod 48, the two ends of U-shaped positioning rod 48 are all offset against puncture needle 5 intermittently, two limit plates 49 are symmetrically fixedly connected on U-shaped positioning rod 48, and U-shaped positioning rod 48 is positioned at puncture needle 5 and puncture needle 5. A second tension spring 491 is sleeved on the horizontal section between the two limiting plates 49, and both ends of the two second tension springs 491 are fixedly connected to the second cylinder 45 and the corresponding limiting plate 49, The annular airbag 46 and the U-shaped positioning rod 48 offset intermittently, the negative pressure box 3 is fixedly connected with a spheri...

Embodiment 3

[0035] Further on the basis of the second embodiment, the first cylinder 44 is fixedly connected with a first L-shaped pipe 441, the negative pressure box 3 is fixedly connected with a second L-shaped pipe 442, and the installation cylinder 1 is provided with a The through groove that the second L-shaped pipe 442 cooperates, the inner diameter of the second L-shaped pipe 442 is equal to the inner diameter of the first L-shaped pipe 441, the second L-shaped pipe 442 is fixedly connected with a plastic sheet 443, the first L-shaped pipe 441 An annular thorn 444 for piercing the plastic sheet 443 is fixedly connected to the top.

[0036] refer to figure 2 , image 3 , Figure 5 with Figure 8 , when the pushing force is continuously applied to the push plate 41, the first cylindrical body 44 will get closer and closer to the negative pressure box 3, and then the first L-shaped tube 441 fixedly connected to the first cylindrical body 44 will also get closer and closer The sec...

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Abstract

The invention discloses puncture biopsy equipment for preoperative pathological diagnosis of liver cancer, and belongs to the field of medical instruments. The puncture biopsy equipment for preoperative pathological diagnosis of the liver cancer comprises a mounting cylinder, a piston plate is slidably connected into the mounting cylinder, a sliding block is fixedly connected to the piston plate, and a sliding groove matched with the sliding block is formed in the mounting cylinder; the piston plate is attached to the inner wall of the mounting cylinder, a connecting pipe is fixedly connected to the bottom of a negative pressure box, and a suction cup used for fixing the negative pressure box is fixedly connected to the bottom of the connecting pipe. According to the puncture biopsy equipment for preoperative pathological diagnosis of the liver cancer, the suction cup is attached to a human body, the position of the negative pressure box can be fixed, the position of a cylinder on the negative pressure box is fixed, the position of the mounting cylinder is fixed, the puncture position of a puncture needle can be guaranteed to be accurate, the negative pressure in the negative pressure box is released when the puncture needle reaches the needed depth by arranging the negative pressure box, and the puncture needle can sample tissue on a liver.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a puncture biopsy device for preoperative pathological diagnosis of liver cancer. Background technique [0002] Liver cancer is a malignant tumor of the liver, which can be divided into two categories: primary and secondary. Primary liver cancer originates from the epithelial or mesenchymal tissue of the liver. The former is called primary liver cancer. Very large malignant tumors, and the latter is called sarcoma. During the treatment of liver cancer, after the patient is diagnosed as liver cancer, a needle biopsy is usually required. The degree of benign and malignant, the accuracy rate of needle biopsy is high, up to 90%, and there are few complications. [0003] When the existing liver cancer puncture is performed, the doctor usually holds the puncture needle to perform puncture biopsy. This method does not support the puncture during the puncture, which requires a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B10/02
CPCA61B17/3403A61B17/3417A61B10/0283A61B10/0266A61B10/0275A61B2017/3407A61B2017/3454
Inventor 李娜金羽张勇
Owner JILIN UNIV
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