Department of Gerontology.
Respir Care. 2013 Oct;58(10):1637-42. doi: 10.4187/respcare.01982. Epub 2013 Mar 26.
Conventional sputum suctioning is a routine clinical practice, but complications may arise from the blind manipulation of the catheter. Recently, a visual sputum suctioning system (VSSS) was developed, and we tested this new system in a laboratory setting.
We used coagulant concentrations of 1.5% and 3.0% to simulate mucus and sputum. Conventional single-lumen and triple-lumen catheters were inserted separately into a beaker for sputum suctioning (15 s, 200 mm Hg). A micro-imaging fiber was integrated into the triple-lumen catheter to create the VSSS. The single-lumen catheter and the VSSS were inserted separately into the mouth cavity, the nasal cavity, the tracheostomy tube, and the endotracheal tube of a human analog model for further comparisons.
As the suction channel of the triple-lumen catheter was reduced by 46.8%, the amount of simulant it suctioned was significantly less than that suctioned by the single-lumen catheter. However, under real-time guidance, the VSSS suctioned more simulant than the conventional single-lumen catheter in the human analog model.
Sputum suctioning with the VSSS was feasible. Because of its real-time imaging guidance, the efficiency of the VSSS procedure was greater than that of the conventional single-lumen catheter. Therefore, this system may provide a new platform for sputum suctioning.
传统的吸痰操作是一种常规的临床实践，但由于盲法操作导管可能会引起并发症。最近，开发了一种可视吸痰系统（VSSS），我们在实验室环境中对该新系统进行了测试。
我们使用 1.5%和 3.0%的凝固剂浓度模拟黏液和痰液。分别将传统的单腔和三腔导管插入一个杯子中进行吸痰（15 秒，200mmHg）。将微成像纤维集成到三腔导管中以创建 VSSS。将单腔导管和 VSSS 分别插入人体模拟模型的口腔、鼻腔、气管造口管和气管内导管中进行进一步比较。
由于三腔导管的吸痰通道减少了 46.8%，因此其吸痰量明显少于单腔导管。然而，在实时引导下，VSSS 在人体模拟模型中吸痰量多于传统的单腔导管。
使用 VSSS 进行吸痰是可行的。由于其实时成像引导，VSSS 程序的效率大于传统的单腔导管。因此，该系统可为吸痰提供新的平台。
