Multi-axial puncture instrument for internal deep tissues

A deep tissue, multi-axial technology, applied in the field of puncture devices, can solve the problems of insufficient minimally invasive treatment, large tissue damage area, increased trauma surface and pain index of patients, etc.

Inactive Publication Date: 2012-11-21
刘苗生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the tissue area of ​​injection, biopsy extraction, anesthesia and surgery for each intervention, the publication number is CN2378008, and the publication date is 2000.05.17. The dual-channel pipeline composed of a tube channel and an arc-shaped channel can insert two needle cores at the same time for one intervention indwelling. One needle core protrudes straight and the other protrudes obliquely, so it is multi-axial. The puncture device can complete epidural anesthesia and spinal anesthesia; although this utility model can achieve the purpose of multi-axial puncture treatment, the anesthesia area for one intervention indwelling will increase accordingly, but the needle body has two needle cavities, and the volume of the needle body is Correspondingly, the area of ​​tissue damage is correspondingly larger after each intervention indwelling, which fails to meet the requirements of minimally invasive treatment and increases the patient's trauma surface and pain index

Method used

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  • Multi-axial puncture instrument for internal deep tissues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Such as figure 1 A multi-axial puncture device for deep tissues in the body is shown, including a puncture needle 1 and a straight puncture sleeve 2, the puncture needle 1 includes a needle tail end 11 and a needle end 12, and the needle end 12 is provided with an oblique cut 13, The length of the puncture needle 1 is 150 mm, and the outer diameter is 3 mm. The puncture sleeve 2 includes a tube head 21, a tube tail 22 and a lumen 23. The length of the puncture sleeve 2 is 100 mm. The diameter of the lumen 23 is 3.3 mm. The puncture sleeve 2 A side opening 24 with a diameter of 3.6 mm is provided at 3 to 10 mm away from the pipe head 21, and an elastic tongue 3 is arranged on the edge of the side opening 24 near the pipe head 21. The length of the elastic tongue 3 is 3 mm, and the elastic tongue 3 The positioning end 31 of 3 is fixedly connected with the tube wall of the puncture sleeve 1 near the tube head 21, and the movable end 32 of the elastic tongue 3 extends obliq...

Embodiment 2

[0014] It is basically the same as Example 1, except that the length of the puncture needle 1 is 50 mm, the length of the puncture sleeve 2 is 20 mm, and the puncture needle 1 is a straight section from the needle tail end 11 to 45 mm away from the needle tail end 11. The puncture needle 1 The needle end 12 is set as a curved section 15, the length of the curved section 15 is 5 mm, the radius of curvature of the curved section 15 is 50 mm, the angle between the cut surface of the oblique incision 13 and the outer tangent of the curved section 15 is 60 degrees, and the outer diameter of the puncture needle The diameter of the lumen 23 is 0.6mm, the diameter of the side opening 24 is 0.6mm, the length of the elastic tongue 3 is 0.6mm, and the angle between the extension line of the elastic tongue 3 and the central axis of the lumen 23 is 6° Spend.

Embodiment 3

[0016]It is basically the same as Example 1, except that the length of the puncture needle 1 is 350 mm, the length of the puncture sleeve 2 is 300 mm, and the distance between the needle tail end 11 of the puncture needle 1 and the distance 300 mm away from the needle tail end 11 is a straight section. The needle end 12 of 1 is set as a curved section 15, the length of the curved section 15 is 50 mm, the radius of curvature of the curved section 15 is 50 mm, the angle between the cut surface of the oblique incision 13 and the outer tangent of the curved section 15 is 6 degrees, and the puncture needle 1 The outer diameter of the tube cavity 23 is 5.8 mm, the diameter of the lumen 23 is 6 mm, the diameter of the side opening 24 is 8 mm, the length of the elastic tongue 3 is 6 mm, and the angle between the extension line of the elastic tongue 3 and the central axis of the tube cavity 23 is 10 Spend.

[0017] The above-mentioned embodiment is only an example to the present invent...

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PUM

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Abstract

The invention discloses a multi-axial puncture instrument for internal deep tissues, which comprises a puncture needle and a puncture cannula, wherein the needle head end of the puncture needle has a tapered cut; a side opening is reserved on the puncture cannula; an elastic tongue piece is arranged on the rim of the side opening close to a cannula head; one end of the elastic tongue piece is fixed on the cannula wall of the puncture cannula, and the other end of the elastic tongue piece is extended into a cannula cavity; the needle head end is a bent section; the curvature radius of the bentsection is 1 to 10 times the length of the bent section; two outlets are reserved on the puncture cannula; and the needle head end can be extended out from the side opening of the puncture cannula along the inclination direction of the elastic tongue piece to perform minimally invasive treatment on the surrounding tissues of the puncture cannula, and also can jack the elastic tongue piece up to be extended out from the cannula head of the puncture cannula so as to perform the minimally invasive treatment on the axial tissues of the puncture cannula. Therefore, the multi-axial puncture instrument for the internal deep tissues can perform treatment along at least two axial directions on a correspondingly larger treatment area after once intervention and insertion, and the area of tissues damaged by the intervention and insertion is relatively smaller.

Description

technical field [0001] The invention relates to a puncture device, in particular to a multi-axial puncture device for internal deep tissue. Background technique [0002] The puncture device is used to locate, expand, implant, radiofrequency, ablate, inject, anesthetize, and biopsy tissues in the body (such as internal organs in the chest and abdominal cavity, and deep tissues of the brain, nerves, blood vessels, and glands) after percutaneous intervention. Extraction, surgery and other minimally invasive treatment operation equipment. At present, the structure of commonly used puncture devices for injection, biopsy extraction, anesthesia and surgery includes puncture cannula and puncture needle. The commonly used puncture cannula is generally a hollow tube with a lumen diameter of about 0.6-6 mm and a length of about 20-300 mm. Made of stainless steel and other materials that are harmless to the human body. Commonly used puncture needles are generally about 0.1-6mm in outer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34
Inventor 常金兰王崇宇刘苗生刘泰华
Owner 刘苗生
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