Angiography liquid, injection device and application of angiography liquid

Abstract

The invention belongs to the technical field of angiography and relates to angiography liquid, an injection device and application of the angiography liquid. According to a weight ratio, the angiography liquid comprises liquid silica gel: dilute silicone oil: superfine barium sulfate powder: toner: curing agent: benzoic acid=2-6: 2-6: 1-3: 0.1-0.3: 0.05-0.1: 0.1-0.3. The injection device comprisesa base, wherein a connection pipe, an injection pipe, a pressure gage, a buffer gas cylinder and a pressurization device are connected with the base in sequence. The angiography liquid provided by the invention and blood are similar in viscosity. Curing time is reduced. Use is safe. An environment is not polluted. Health of a researcher is not damaged. When injection is carried out, small branches of a blood vessel are displayed clearly. The injection device provided by the invention is simple in structure and low in cost and is convenient for use. Pressure when the injection is carried out can be controlled precisely. After the injection is carried out, a blood vessel trunk and the small branches are guaranteed to be displayed clearly. Analysis and induction of blood vessel distributionare facilitated in a later period.

Description

technical field [0001] The invention belongs to the technical field of angiography, and in particular relates to an angiography solution, an injection device and applications thereof. Background technique [0002] For a long time, the study of blood vessels in tissues has been dominated by angiography, which is simple and intuitive. The commonly used techniques are mainly gelatin-lead oxide angiography and latex-barium sulfate angiography. In 1986, Taylor et al. optimized the gelatin-lead oxide contrast agent formula, making it the "gold standard" in modern angiography. In 1999, mammography was introduced into barium sulfate latex injection contrast to make the image clearer. Because barium sulfate latex is cheap, safe and non-toxic, it has now become a simple and effective method for angiography. [0003] However, there are deficiencies in the above contrast fluid: [0004] ⑴. The properties of gelatin and latex are too different from that of blood, so they cannot well ...

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Problems solved by technology

[0004] ⑴. The properties of gelatin and latex are too different from that of blood, so they cannot well simulate the blood supply of clinical flap surgery

[0005] (2) Lead oxide is volatile and toxic, which can easily cause health damage to researchers and pollute the environment

[0006] (3) Ordinary barium sulfate powder particles are too large, and small branches are not ideally displayed during angiography

[0007] The simplest equipment for vascular injection is a syringe, or use a vessel suspended at a high place to rely on gravity injection, but the injection pressure is difficult to control accurately or requires a large experimental space, and the small branches of blood vessels after injection are not clearly displayed

There are also specialized large-scale precision injection equipment, and the pressure can also be controlled, but this equipment is mainly used for injection of large specimens or large batches of specimens, and the price is also very expensive

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