Fluorocarbon emulsion analog adjuvant for high-intensity focusing ultrasonic therapy and its uses
A focused ultrasound and fluorocarbon emulsion technology, used in ultrasound therapy, medicine and medical fields, can solve the problems of low target energy, burns, and decreased treatment efficiency, and achieve the effects of increasing energy deposition, enhancing absorption characteristics, and improving efficiency.
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Embodiment 1
[0028]First 3% (W / V) emulsifier Pluronic F-68 (purchased from Sigma Company), 0.5% (W / V) egg yolk lecithin (purchased from Shanghai Chemical Reagent Company), 5% (V / V) whole Fluoropentane (purchased from Sigma Company) was mixed with 1000 ml of distilled water, and sheared and dispersed at 10,000 rpm for 5 minutes under ice-water bath conditions to form a coarse milk. Put the crude milk into a high-pressure homogenizer at 4°C, emulsify twice to obtain an emulsion, and filter through a 1 μm filter membrane to obtain an emulsion with particles smaller than 1 μm. Pack into 15ml bottles, and then irradiate with 20KGY cobalt 60 for 10 hours, the particle concentration is 10 9 / ml, refrigerated for later use.
Embodiment 2
[0030] First the emulsifier Pluronic F-68 (purchased from Sigma Company) of 6% (W / V), 1% (W / V) egg yolk lecithin (purchased from Shanghai Chemical Reagent Company), 10% (V / V) whole A total of 1000 ml of fluoropentane (purchased from Sigma) was mixed with physiological saline, and sheared and dispersed at 10,000 rpm for 5 minutes in an ice-water bath to form a coarse milk. Put the crude milk into a high-pressure homogenizer at 4°C, emulsify twice to obtain an emulsion, and filter through a 1 μm filter membrane to obtain an emulsion with particles smaller than 1 μm. Pack into 15ml bottles, and then irradiate with 20KGY cobalt 60 for 10 hours, the particle concentration is 10 9 / ml, refrigerated for later use.
Embodiment 3~6
[0032] According to the same method and steps as described in Example 1, the fluorocarbon emulsion auxiliary agent for HIFU treatment of the present invention was obtained according to the materials and proportions used in Table 1 below, and the corresponding parameters are shown in Table 1 below:
[0033] Table 1
[0034] Example 3
[0035] Hereinafter, taking the fluorocarbon emulsion auxiliary agent for HIFU treatment prepared in Example 1 as an example, combined with the joint use of the JC type HIFU tumor treatment system, the effect of the auxiliary agent of the present invention will be illustrated.
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