Puncture indwelling catheter guiding device based on blood vessel depth

Abstract

The invention relates to a puncture indwelling catheter guiding device based on blood vessel depth. The invention aims to overcome the defects that the eye-hand coordination technical requirements required by ultrasonic-assisted blood vessel short-axis out-of-plane approach successful puncture are obviously increased, the puncture time is long, the puncture catheterization success rate is low, and the operation difficulty is high. One end of a guiding device body is connected with a guiding device fixing frame, the guiding device body and the bottom of the guiding device fixing frame are located on the same horizontal plane and fixed in a T shape, and a U-shaped guiding groove baffle is arranged along the U-shaped outer edge of the other end of the guiding device body; a chute is tapered, and the cross section of the chute is rectangular; and a guide groove inlet and a guide groove outlet are respectively formed at the two ends of the chute when a guide groove baffle and the guiding device body are tightly sleeved. The puncture indwelling catheter guiding device is designed according to the right triangle principle, refers to a clinical puncture catheterization method and is based on the blood vessel depth. Ultrasound is combined with the device, so that the two core problems of indwelling needle tip positioning and catheterization during ultrasound-assisted puncture catheterization of blood vessels are simultaneously solved.

Description

[0001] Technical field

[0002] The invention relates to a medical device and an operation method, in particular to a puncture catheterization guide device based on blood vessel depth. Background technique

[0003] Arteriovenous catheterization is a common clinical invasive operation. In the past, vascular puncture catheterization was performed by dissection and palpation, and the failure rate was high. Ultrasound-assisted vascular puncture catheterization can display the status of blood vessels in real time, and has a high puncture success rate. Ultrasound has no radiation, the instrument is small in size, and easy to operate. More and more medical staff use it.

[0004] Clinically, ultrasound-assisted vascular catheterization mainly includes in-plane and out-of-plane needle approaches.

[0005] Advantages of the in-plane approach: the long axis of the blood vessel and the entire indwelling needle can be displayed at the same time; the relative position of the needle tip, n...

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