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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

Active Publication Date: 2017-10-20
ANEW MED LIFE SCI WUHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because ordinary iodized oil is a viscous oily liquid, the viscosity increases after adding chemotherapeutic drugs, and the lumen of the 3F catheter is small. It is also very difficult to use a 1ml glass syringe for injection, with incomplete deposition and incomplete embolization; Low embolization intensity, easy recanalization of blood vessels; clinically, repeated operations are required
When using super liquefied lipiodol, although the viscosity is significantly reduced, the effect of deposition and retention in the blood vessel is also obviously worse; the deposition is incomplete, the embolization strength is low, and there are likely to be residual cancer cells, and the lipiodol is easily absorbed by the blood. The blood flow scours the metabolism, and the tumor blood vessels are easy to recanalize, which leads to the need for repeated embolization treatments for patients, and the long-term curative effect needs to be improved; moreover, almost all super liquefied lipiodol is imported, expensive, and the market is in short supply, so it is not easy to buy
There is no embolic material with low viscosity and good embolic effect in the prior art

Method used

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  • Iodinated lipid emulsion vascular thrombosis material, preparation method and application thereof
  • Iodinated lipid emulsion vascular thrombosis material, preparation method and application thereof
  • Iodinated lipid emulsion vascular thrombosis material, preparation method and application thereof

Examples

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preparation example Construction

[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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Abstract

The invention relates to an iodinated lipid emulsion vascular thrombosis material, a preparation method and an application thereof, and belongs to the technical field of vascular thrombosis materials used in medical appliance intervention. The iodinated lipid emulsion vascular thrombosis material includes, by mass, 20-80% of iodinated lipid emulsion, 15-75% of temperature sensitive nano-hydrogel and 0.04-3.0% of a gelator; on the basis of the mass of the iodinated lipid emulsion, the iodinated lipid emulsion includes, by mass, 50-90% of lipiodol, 0.1-0.6% of a co-surfactant and the balanced water. The vascular thrombosis material is low in viscosity and is excellent in capability of resisting blood scouring, can form firm and durable thrombosis, can be image-developed for long period, brings convenience to reexamination and diagnosis of patients at any time, has better curative effects and is safe and controllable.

Description

Technical field [0001] The invention relates to the technical field of vascular embolization materials for medical device intervention, in particular to an emulsified lipiodol vascular embolization material, and a preparation method and application thereof. Background technique [0002] Lipiodol can be deposited and retained in liver tumor tissues by injection through the hepatic artery. Therefore, it is often used clinically by interventional doctors in the field of interventional radiology, mainly used for the embolization of liver tumors. This has become The classic method of interventional embolization for liver cancer in Asian countries. When lipiodol is used for embolization, gelatin sponge is generally needed to embolize the proximal end of the blood vessel, and the lipiodol is deposited on the distal end of the blood vessel (not the peripheral blood vessel). The advantage of lipiodol as an embolic agent is that it can be used as a contrast agent and an embolic agent at th...

Claims

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Application Information

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IPC IPC(8): A61L24/00A61L24/04
CPCA61L24/0005A61L24/001A61L24/0031A61L24/046A61L2400/06C08L33/26
Inventor 孙海霞钱坤张鸿森刘宏李涵曾坚刘爽卢欣郭俊成袁冰寒
Owner ANEW MED LIFE SCI WUHAN CO LTD
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