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Spiral sampling puncture biopsy needle

A sampling needle and spiral technology, applied in the field of spiral sampling needle structure, can solve problems such as poor sampling effect of puncture biopsy needle, and achieve the effect of ensuring safety and reliability

Inactive Publication Date: 2021-03-16
李升锦 +2
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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 design a biopsy puncture needle capable of taking out more and more complete tissues, so as to effectively solve the technical problem of poor sampling effect of the current puncture biopsy needle

Method used

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  • Spiral sampling puncture biopsy needle
  • Spiral sampling puncture biopsy needle
  • Spiral sampling puncture biopsy needle

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Embodiment Construction

[0020] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings, and the described embodiments are part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by other researchers in the field without making creative designs fall within the protection scope of the present invention.

[0021] The spiral sampling needle retreats into the sleeve and enters the airway through the bronchoscope, and the rotating operation end pushes the needle out so that it enters the pathological tissue.

[0022] Push out the sleeve, and take out the sleeve and the needle together, so that not only the shape of the collected pathological tissue will not be damaged, but also the collection volume can be guaranteed.

[0023] In order to connect firmly and reliably, it is required that the helical sampling needle and the flexible shaft cannot be ...

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Abstract

The invention discloses a spiral sampling puncture needle comprising a spiral sampling needle head, a cannula and a flexible steel wire flexible shaft, and relates to the technical field of medical instruments. The spiral sampling puncture needle comprises the spiral sampling needle head part used for obtaining complete tissue, the cannula part used for storing the obtained tissue, and the steel wire flexible shaft part used for connecting the spiral sampling needle head with the cannula. The spiral sampling needle head firstly rotates to enter focus tissue to obtain thread-like tissue; the cannula is in a hollow cylinder shape, the head of the cannula is in a sharp shape, and after the spiral sampling needle head obtains the tissue, the cannula enters the focus tissue to protect and storethe tissue and retreats from the focus tissue together with the spiral sampling needle head; and the steel wire flexible shaft is connected with the spiral sampling needle head and the cannula through trapezoidal threads and is used for connecting two shafts which are not positioned on the same axis so as to transmit rotary motion and torque, and the rotary motion and the torque can be flexibly transmitted to any position. The spiral needle head part rotates into the tissue, the obtained tissue is stored in a spiral groove, and the spiral sampling puncture needle has the characteristics thatthe obtained tissue is complete and the practicability is high.

Description

technical field [0001] The invention relates to the field of medical equipment technology and precision parts manufacturing technology, in particular to a spiral sampling needle structure. Background technique [0002] When sampling with a puncture needle, the main problem in clinical practice is that the probability of the sample tissue being strip-shaped is not high, and some of it is a fragment-like tissue block. When the shape of the specimen is fragment-like tissue, it cannot be directly sent for pathological examination. Some methods are used to make the fragments agglomerate, which wastes a certain cost. If the fragments cannot be agglomerated, the sampling operation needs to be performed again, which increases unnecessary troubles and makes it inconvenient for medical staff to use the puncture guide needle. Therefore, designing new biopsy needles has become an important task for those skilled in the art in order to obtain more complete and usable tissues. [0003] T...

Claims

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Application Information

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IPC IPC(8): A61B10/04
CPCA61B10/04A61B2010/045
Inventor 李升锦李军周伟
Owner 李升锦
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