A puncture needle guide device for wide-surface puncture with b-ultrasound probe

Abstract

The invention provides a puncture needle guide device for wide-surface puncture of a B-ultrasound probe, which relates to the field of medical equipment, and solves the problem of the need to manually adjust the expansion and contraction of the telescopic rod to achieve position alignment, which is difficult to achieve precise adjustment; without a calibration structure, only It is difficult to accurately judge the position by visual inspection. A puncture needle guiding device for wide-surface puncture by a B-ultrasound probe, comprising a clamping and fixing seat; a main body frame is welded on the top surface of the clamping and fixing seat, and a puncture needle guiding structure is rotatably connected to the main body frame. On the one hand, because the gear A and the adjusting threaded rod A together form a worm gear structure, the adjustment of the infrared lamp A can be realized, and it can be automatically locked after adjustment; The tail end of the part is connected to the bottom end surface of the needle guide structure, and the elastic part is a space elimination structure of the needle guide structure, which can eliminate the adjustment space of the needle guide structure and improve the accuracy of use.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and more specifically relates to a puncture needle guide device for wide-surface puncture by a B-ultrasound probe. Background technique [0002] Kidney stones are caused by the abnormal accumulation of some crystal substances (such as calcium, oxalic acid, uric acid, cystine, etc.) in the kidney. % contain calcium, of which calcium oxalate stones are the most common. Percutaneous nephrolithotomy is one of the most important treatment options for kidney stones and upper ureteral stones. [0003] For example, the application number: CN201910676311.2, the present invention relates to a puncture needle guide device suitable for puncturing through the wide surface of a B-ultrasound probe, including a connecting plate, a positioning bar and a matching block. The upper wide surface of the probe, the positioning strip is arranged on the connecting plate along the length direction of the upp...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned technical problems, the present invention provides a puncture needle guide device for wide-surface puncture of a B-ultrasound probe to solve the existing problem that the adjustment structure error is relatively large, and the expansion and contraction of the telescopic rod needs to be manually adjusted to realize the position when applying for adjustment. Alignment, it is difficult to achieve precise adjustment; moreover, the accuracy is low, the above application has no calibration structure, and it is difficult to achieve accurate judgment of the position only by naked eye observation; finally, the fixation is poor and cannot be improved through structural improvement Achieving High Stability Fixed issues

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