阅读说明：本技术 可塌陷鼻腔喷射导管 (Collapsible nasal cavity jet catheter ) 是由 吴丽秋 李慧萱 李苍牧 李子瑜 于 2017-12-25 设计创作，主要内容包括：一种以热塑性弹性体或其他柔软具弹性的材质制成的可塌陷鼻腔喷射导管(6),可供病人自行操作置入鼻腔及鼻咽(J)。导管(6)包括一导管本体(61)及一衔接器(62)。导管本体(61)具一扁平状封闭末端(611)、一从封闭末端(611)至圆形外观处的过渡段(TS)、一具有圆形外观的正常段(NS),及一相反于扁平状封闭末端(611)的开放端(612),并于接近扁平状封闭末端(611)处开设多个边孔(613),如配合一衔接器(62)及一注射筒(7)可在鼻腔及鼻咽(J)喷出多重强劲细长水柱以清洗粘液及结痂。导管本体(61)的过渡段(TS)的最大宽度不小于1mm且其管壁最小厚度不大于0.45mm。因为导管本体(61)的扁平状封闭末端(611)、过渡段(TS)及可塌陷性,使较大外径的导管(6)可顺行于隙缝状空间,抵达狭窄的深处产生较佳的冲洗效果,也可以避免误入鼻窦。(A collapsible nasal cavity injection catheter (6) made of thermoplastic elastomer or other soft and elastic material is provided for the patient to self-operate and insert into the nasal cavity and nasopharynx (J). The catheter (6) includes a catheter body (61) and an adapter (62). The catheter body (61) has a flat closed end (611), a Transition Section (TS) from the closed end (611) to a rounded appearance, a Normal Section (NS) with a rounded appearance, and an open end (612) opposite to the flat closed end (611), and is provided with a plurality of side holes (613) near the flat closed end (611), for example, in combination with an adapter (62) and an injection tube (7) to spray multiple strong and slender water jets in the nasal cavity and nasopharynx (J) to clean mucus and scabs. The Transition Section (TS) of the duct body (61) has a maximum width of not less than 1mm and a minimum wall thickness of not more than 0.45 mm. Because of the flat closed end (611), the Transition Section (TS) and the collapsible property of the catheter body (61), the catheter (6) with larger outer diameter can go along the slit-shaped space, reach a narrow depth to generate better flushing effect, and can also avoid mistakenly entering into the paranasal sinus.)