为解除传统壁式胸腔负压引流系统对肺部术后患者自由活动的限制，我们研发了一款新型便携式负压胸腔引流装置。

新型便携式负压胸腔引流装置由主机单元与三腔闭式引流瓶共同组成，三腔闭式引流瓶调压腔最大水柱高度约20 cm。新装置采用分体式结构设计：通过3D打印制造，将微型气泵、可充电电源以及降噪系统集成独立的便携式主机单元，通过强力双面胶带黏合的连接方式，固定于三腔闭式引流瓶的侧壁。

主机尺寸为162 mm × 108 mm × 54 mm，重约800 g。最大负压约20 cmH₂O，在3 L/min的流速下噪音低于60 dB，电池续航时间约为3~6 h，最大流量约9 L/min。预计每台设备的物料成本约为800元人民币，一次性耗材（三腔闭式引流瓶和强力双面胶）成本约为48元人民币。

本研究发明了一种新型胸腔闭式引流装置，具备实现便携负压引流的工程可行性，有望改善肺部术后需要胸腔负压引流患者的移动性，但尚需临床试验验证。

To overcome the limitations imposed by traditional wall-mounted negative pressure thoracic drainage systems on postoperative lung patients’ mobility, we developed a new portable negative pressure thoracic drainage device.

The new portable negative pressure thoracic drainage device is composed of a main unit and a three-chamber closed drainage bottle. The maximum water column height of the pressure regulating chamber of the three-chamber closed drainage bottle is approximately 20 cm. The new device adopts a split structure design: using 3D printing manufacturing, the micro air pump, rechargeable power supply and noise reduction system are integrated into an independent portable main unit, which is fixed to the side wall of the three-chamber closed drainage bottle by means of strong double-sided adhesive tape.

The main unit measures 162 mm × 108 mm × 54 mm and weighs approximately 800 g. The maximum negative pressure is about 20 cmH₂O, and the noise is less than 60 decibels at a flow rate of 3 L/min. The battery life is approximately 3 to 6 hours, and the maximum flow rate is about 9 L/min. The estimated material cost for each device is about 800 RMB, and the cost of disposable consumables (three-chamber closed drainage bottle and strong double-sided tape) is about 48 RMB.

This study developed a new type of closed thoracic drainage device, which has the engineering feasibility to achieve portable negative pressure drainage. It is expected to improve the mobility of patients who need negative pressure drainage in the thoracic cavity after lung surgery, but it still needs to be verified by clinical trials.