Ultrasonic guided puncture needle device

Abstract

The invention relates to an ultrasonic guided puncture needle device. The ultrasonic guided puncture needle device comprises an outer puncture needle and an inner puncture needle, wherein the outer puncture needle is of a hollow structure, the inner puncture needle is of a solid structure, and the outer puncture needle is arranged on the inner puncture needle in a sleeving mode and can move relatively and freely; a plurality of crescent outer needle grooves protruding towards a needle tip are formed in the surface wall, corresponding to the needle tip inclined plane side, of the position, close to the needle tip, of the outer puncture needle, and the outer needle grooves are obliquely arranged in the mode of being not perpendicular to the axis of the outer puncture needle; a plurality of crescent inner needle grooves protruding towards the needle tip are formed in the surface wall, corresponding to the needle tip inclined plane side, of the position, close to the needle tip, of the inner puncture needle, and the inner needle grooves are obliquely arranged in the mode of being not perpendicular to the axis of the inner puncture needle; and when the needle tip inclined plane of the outer puncture needle is flush with the needle tip inclined plane of the inner puncture needle, the inclination direction of the outer needle grooves is opposite to that of the inner needle grooves. The ultrasonic guided puncture needle device is ingenious in structure and reasonable in design, the reflection section of the whole puncture needle device can be greatly increased, ultrasonic reflection is better facilitated, and therefore the puncture needle device can display more clearly under ultrasound.

Description

technical field [0001] The invention relates to a puncture needle, in particular to an ultrasound-guided puncture needle device, which belongs to the technical field of medical instruments. Background technique [0002] Ultrasound-guided puncture technique is widely used in clinic, especially in pain department. Since the puncture needle is often close to dangerous structures such as blood vessels, organs, and spinal cord, and needs to accurately reach targets such as nerves, it is particularly important to have a good display of the puncture needle under ultrasound. In the past, puncture needles mostly used a reflective surface on the surface of the needle to enhance the display, but the actual application effect was not good. There were disadvantages such as a large reflective surface would affect the strength of the puncture needle, and a small reflective surface would lead to little improvement in display. Contents of the invention [0003] The purpose of the present ...

AI Technical Summary

Problems solved by technology

In the past, puncture needles used to make reflective surfaces on the needle surface to enhance the display, but the actual application effect is not good. There are disadvantages such as large reflective surfaces will affect the strength of puncture needles, and small reflective surfaces will lead to little improvement in display.

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