An Enhanced Visualization Puncture Needle for Ultrasound-Guided Nerve Block
A nerve block and puncture needle technology, applied in the field of medical devices, can solve problems such as affecting the effect of nerve block, puncturing needle damage to nerves, affecting puncture needle positioning, etc. Reflectivity, the effect of improving the effect
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Embodiment 1
[0029] refer to Figure 1-3 , the present invention provides an enhanced visualization puncture needle for ultrasound-guided nerve block, comprising an outer needle 1, one end of the outer needle 1 is inclined and provided with a cutting edge 8, the cutting edge 8 is inclined, and the other end of the outer needle 1 is fixedly connected There is a needle seat, and the inclined cutting edge 8 can increase the puncturing ability of the present invention and reduce the pain of puncturing;
[0030] The outer needle 1 includes an outer shell 11, an inner shell 12 is arranged in the outer shell 11, and the inner shell 12 and the outer shell 11 are eccentrically fixed; the inner shell 12 and the outer shell 11 are fixedly connected with a cover 14; Cavity 13, the cavity 13 is filled with gas, the gas selects the gas with high reflectivity to ultrasonic waves, such as oxygen, nitrogen, argon, etc., the use of ultrasonic waves has high reflectivity on the contact surface of different m...
Embodiment 2
[0046] refer to Figure 4-5 The difference between this embodiment and Embodiment 1 is that this embodiment also includes an inner needle handle 10, one end of the inner needle handle 10 is fixed with a plug 1001, and the plug 1001 is detachably connected to the slot on the base 4, which is convenient for Holding force; the handle 10 is provided with a placement hole 1002, the placement hole 1002 penetrates the plug 1001, the end of the placement hole 1002 away from the plug 1001 is slidably connected with a slide 1005, and the slide 1005 and the end of the placement hole 1002 away from the plug 1001 are slidably connected A spring 1007 is fixed in between; a limit groove 1004 is provided circumferentially on the side wall of the handle 10, the limit groove 1004 communicates with the placement hole 1002, and the sliding piece 1005 includes a central sliding piece located in the placing hole 1002 and a central sliding piece fixed to the central sliding piece. The side slide pie...
Embodiment 3
[0049] refer to Image 6 , The difference between this embodiment and Embodiment 2 is that the inner needle 5 does not have an empty groove 51, but a wire cavity 57, and the needle body 52 is embedded with an ultrasonic generator 55 at the solid position near the tip. The ultrasonic generator 55 A lead wire 56 is electrically connected, and the lead wire is arranged in the lead wire cavity 57 and protrudes from the tailstock 6 to be connected to an ultrasonic instrument (prior art, not shown in the figure).
[0050] In this embodiment, the function of the inner needle 5 is weakened, and the use of the inner needle 5 as a sampling needle is eliminated, but by providing the ultrasonic generator 55, when the puncture is performed, the ultrasonic generator 55 emits ultrasonic waves and passes through the needle of the inner needle 5. The wall, the outer needle 1 and the human tissue are received by an ultrasonic imaging device (the prior art, not shown in the figure), thereby form...
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