Puncture needle and use method

Abstract

The invention discloses a puncture needle and a user method. The puncture needle comprises a needle body provided with a first channel and a second channel, wherein the left end of the first channel penetrates through the needle body in the axial direction of the needle body, the second channel is obliquely arranged rightwards from bottom to top, the upper end of the second channel penetrates through the peripheral wall of the needle body, and the lower end of the second channel communicates with the right end of the first channel; an elastic air bag which is connected to the peripheral wall of the needle body, wherein the elastic air bag is communicated with the first channel or the second channel; a second channel which is inserted into the plug block, wherein the plug block is used for blocking the second channel, the arranged first channel serves as a channel for air circulation, and the arranged second channel is obliquely arranged rightwards from bottom to top, so when the elastic air bag is inflated, an injector can be obliquely inserted into the plug block, air is injected into the second channel, and the air enters the elastic air bag through the second channel or the first channel, so the elastic air bag is bulged, the operation is performed during an operation, and steps are saved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a puncture needle and a method for using it. Background technique [0002] Local anesthesia is commonly used with an epidural needle. In the prior art, the puncture needle includes a needle body and a needle core connected in the needle body, the needle core is set to be hollow, the tail end of the needle body is connected with an air bag, and the blade end of the needle core can be inserted together with the blade end of the needle body In the epidural space, the tail end of the needle core is used to insert the air bag, which is pre-filled with gas. After the puncture needle penetrates the epidural space, the tail end of the needle core is inserted into the air bag, the gas in the bag is released, and the air bag shrinks. Indicates that the puncture needle is in place. [0003] It can be seen that in the prior art, the epidural puncture needle uses the airbag as a sep...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that in the prior art, the epidural puncture needle uses the airbag as a separate replaceable part, which wastes resources and increases production costs; even if a single airbag is repeatedly inflated and used, the airbag needs to be removed for inflation, which is inconvenient to inflate , the process of removing the airbag and installing the airbag is cumbersome and inconvenient to use; when installing the elastic airbag, there may be joint gaps, resulting in poor inflation or failure of the airbag

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