Preparation method of phantom model for ultrasonic puncture teaching

Abstract

The invention discloses a preparation method of a phantom model for ultrasonic puncture teaching. The preparation method comprises the following steps: preparing a phantom model shell; the preparationof the phantom model shell comprises the following steps: S11, mixing medical silica gel A and medical silica gel B according to a mass ratio of 1:1-1:2 to obtain a first mixed solution; S12, uniformly stirring and mixing the first mixed solution, and performing vacuum defoaming for 1-10 minutes to obtain a bubble-free first mixed solution; and S13, injecting the bubble-free first mixed solutioninto a mold, properly rotating the mold to enable the bubble-free first mixed solution to be uniformly smeared on the inner surface of the mold, after smearing is completed, putting a mold inner coreinto the mold, fixing the mold inner core, and curing the mold in an environment of 60-100 DEG C for 10-30 min to obtain the phantom model shell. The structure mode that the shell comprises the core layer is adopted, and the problem that it is impossible to achieve the effects that a single-structure channel is fast in recovery, and no viscosity exists on the surface at the same time is solved.

Description

technical field [0001] The invention relates to a method for preparing a phantom model, in particular to a method for preparing a phantom model for ultrasonic puncture teaching. Background technique [0002] In recent years, ultrasound training has been widely promoted as an emerging project in the field of ultrasound diagnosis in China. With the increase in demand, the quality of training has attracted more and more attention. In ultrasound training, it has become difficult to master the practice of ultrasound-guided biopsy needle puncture , due to certain differences between ultrasound images and solid anatomy, there are certain challenges for students to operate independently in actual operation and to recognize and understand images in the future. The existing phantom models have the following problems: First, after the puncture practice of the biopsy puncture needle, the recovery time of the phantom needle track is long, or even impossible, and the repeated use effect i...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: after the puncture practice of the existing biopsy puncture needle, the recovery time of the biopsy needle track is long, or even impossible to recover, and the repeated use effect is poor; part of the puncture model material, the core layer and the surface For the same material, in order to achieve the self-healing effect of the acupuncture channel, the core layer must be very soft and viscous, resulting in the surface of the model being very sticky, and the ultrasonic probe cannot move without the aid of a coupling agent; judging only by ultrasonic images Whether the mark block is pierced, there is no other auxiliary method to judge whether the mark block is pierced during the puncture practice; the model moves under the thrust of the puncture needle during the puncture practice, and other manual assistance is needed to fix it

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