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静脉推注是临床主要治疗、急救手段，有时，在静脉滴注过程中需用输液器上的静脉针推注药液。目前，我们在临床批量使用的一次性输液器，其过滤器位置存在以下缺点：过滤器位于输液管管道的末端，静脉滴注药液时起到过滤作用，但静脉推注药液时，空针与静脉针管衔接，药液未经
Intravenous bolus injection is the main method of clinical treatment and emergency treatment. In some cases, intravenous bolus injection on the infusion device is required during intravenous infusion. At present, in the disposable infusion set used clinically in batches, the filter location has the following disadvantages: The filter is located at the end of the infusion tube, and it functions as a filter when intravenously instilling liquid medicine, but when the liquid is intravenously injected, it is empty. The needle is connected with the intravenous needle and the liquid is not