[Objective]To design a dual chamber synchronous syringe for preoperative localization of small pulmonary nodules.[Methods]The dual chamber synchronous syringe was composed of the inner and outer syringes and the double-cavity puncture needle.The handles of the inner and outer syringes were linked with an annular groove.The double-cavity needle body could be connected to the syringes respectively.[Results]The handle of the inner and outer syringes can push and inject two liquids simultaneously by the annular groove.The double-cavity needle body can drain two liquids respectively.The annular filter at the front of the outer needle increases the contact area of the liquids.The magnetic fluid and calcium gluconate contact sufficiently and form magnetic gel rapidly after leaving the needle.[Conclusion]The dual chamber synchronous syringe,which can inject two liquids at the same time,could be used as preoperative localization of small pulmonary nodules with the magnetic gel.
关键词
肺小结节/术前定位/双腔同步注射器/磁示踪技术
Key words
small pulmonary nodules/preoperative localization/dual chamber synchronous syringe/magnetic tracer technique
维普
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