Multi-axial puncture instrument for internal deep tissues

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...

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

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