Central vein puncturing stent under ultrasonic guiding

Abstract

The invention provides a central vein puncturing stent under ultrasonic guiding. The central vein puncturing stent under ultrasonic guiding comprises a pasting part and an adsorbing part, wherein the pasting part is formed by an upper side surface, a lower side surface, a front side surface, a back side surface and a left side surface in a surrounding manner; a run-through circular hole is formed in the upper side surface; a run-through long square hole is formed in the lower side surface; a run-through hollow structure is arranged in the pasting part; a cover plate covers the right side of the pasting part and is detachably connected with the pasting part; a balloon is arranged on one side of the side plate and far from the pasting part; and a hard ring is arranged at the lower end of the balloon and is flush with the lower side surface of the pasting part. Compared with the prior art, the central vein puncturing stent under ultrasonic guiding provided by the invention has the sticky pasting part and the adsorbing part capable of generating negative pressure; an ultrasonic probe is placed in the pasting part; the whole apparatus is tightly fitted with skin in a vein puncturing region under the effects of sticking and negative pressure; and vein collapse can be avoided in central vein puncturing by lifting the apparatus upwardly.

Description

technical field [0001] The invention relates to the technical field of clinical medicine, in particular to a stent for preventing venous vessel collapse during central venous puncture under the guidance of ultrasound. Background technique [0002] Central venous catheterization is an important operation technique in the fields of anesthesia, critical care, and first aid. The establishment of central venous access provides an efficient, accurate, and multi-purpose "life access" for patients' medical treatment. [0003] With the popularity of "visualized" medicine, ultrasound makes central venous puncture "visualized" during operation: continuous real-time ultrasound imaging of blood vessels and puncture needles in the puncture area, greatly improving the success rate of puncture and significantly reducing puncture complications. [0004] see figure 1 It is a schematic diagram of the structure of the central venous vessel collapse caused by the existing ultrasonic probe. fig...

AI Technical Summary

Problems solved by technology

For critically ill patients, the conditions of the central venous vessels are poor. During ultrasound guidance, the ultrasound probe 1' is close to the skin 2' and pressed down, so that the subcutaneous tissue 3' and the muscle 4' are both squeezed deep, and the original and The central venous vessel 5' with similar shape to the arterial vessel 6' is compressed into the collapsed central venous vessel 5', and the pressure of the puncture needle breaking the skin and puncturing the central venous vessel between tissues will aggravate the collapse degree of the collapsed central venous vessel 5', Difficulty in central venous puncture, affecting the implementation of treatment strategies

[0005] Clinically, the head-down position of the patient is often used to increase the filling degree of the central vein to improve the vascular visualization under ultrasound, but the effect of the head-down position is very limited for some patients with poor central venous conditions

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