Iodinated lipid emulsion vascular thrombosis material, preparation method and application thereof
A technology of vascular embolism and lipiodol, which is applied in the field of emulsified lipiodol vascular embolization materials and its preparation, can solve the problems of long-term curative effect to be improved, easy recanalization of tumor blood vessels, and small lumen of 3F catheters, so as to inhibit tumor growth, Good curative effect, firm embolism and long-lasting effect
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[0025] The preparation method of the emulsified lipiodol of the present invention is: after mixing lipiodol, co-surfactant and water, high-speed shearing is performed. In the present invention, the cutting linear velocity is preferably 8-15 m / s. The preparation method of the invention can reduce the viscosity of lipiodol, make it easy to inject, and can expand the target blood vessel, the embolic agent can be easily injected into the tumor, and it has the effect of reducing pain.
[0026] In the present invention, the emulsified lipiodol includes 0.1 to 0.6% of co-surfactant, more preferably 0.3%. In the present invention, the co-surfactant includes one or more of glycerin, propylene glycol, Tween-80 or cyclodextrin. The present invention does not specifically limit the source of the co-surfactant. The conventional commercial products of glycerin, propylene glycol, Tween-80 and cyclodextrin that are well known to the skilled person are sufficient.
[0027] The emulsified lipiodol...
Embodiment 1
[0035] Step 1. At room temperature, add 1.99 g of water to 8.0 g of lipiodol, then add 0.01 g of Tween 80, and apply high-speed shear to emulsify to obtain emulsified lipiodol;
[0036] Step 2: Add 10.0 g of 4% thermosensitive nano hydrogel to the emulsified lipiodol obtained in step 1, and after stirring evenly, add 0.03 g of sodium chloride to obtain the vascular embolization material of Example 1.
Embodiment 2~17
[0038] The quality of the lipiodol, water, co-surfactant, temperature-sensitive nano hydrogel, and gel factor of Examples 2-17 is shown in Table 1, and the rest of the preparation process is the same as that of Example 1.
[0039] Table 1 The quality table of each component of Examples 2-17
[0040]
[0041]
[0042] Note: PNIPAM in the table is poly-N-isopropylacrylamide nanogel; PNIPAM / BMA is: poly(N-isopropylacrylamide-co-butyl methacrylate) nanogel; PNIPAM / AM is poly (N-isopropylacrylamide-co-acrylamide) nanogel; PNIPAM / AA is poly(N-isopropylacrylamide-co-acrylic acid) nanogel; PNIPAM / NNPAM poly(N-isopropyl) Acrylamide-n-propylacrylamide) nanogel.
[0043] The liquid embolic material obtained in the above examples is applied to rabbit renal artery embolization and has a good embolization effect. The results are shown in the figure figure 1 Shown. The digital blood vessel silhouette showed obvious relief signs, and the visualization effect was good; the rabbit's right kidney was...
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