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发明授权
CN101808692B 阀体及医疗用具 失效 - 权利终止

阀体及医疗用具
摘要：
本发明提供一种阀体和医疗用具，阀体(6)具有上表面(601)和下表面(602)，由呈椭圆形或圆形的膜状(圆盘状)的弹性体构成。在阀体(6)的上表面601侧形成有底面为弯曲的凹面(641)的第一凹部64。另外，阀体(6)具有开闭部(60)，该开闭部(60)伴随扩张器(10)的插入/拔去而开闭，包括第一狭缝(61)、第二狭缝(62)、第二凹部(65)、两个第三凹部(66)。即，在阀体(6)的凹面(641)侧的与交叉部(63)对应的部位形成有第二凹部(65)，在第一狭缝(61)的两端部分别形成有第三凹部(66)。第二凹部(65)在阀体(6)的厚度方向上形成到第一狭缝(61)的途中为止，没有到达第二狭缝(62)。
摘要（英）：

A valve element (6) is an elliptic or circular (disc-like) diaphragm-like elastic body having an upper surface (601) and a lower surface (602). On the upper surface (601) is formed a first depression (64) having a concave surface (641) with a curved bottom surface. The valve element (6) is opened and closed as a dilator (10) is inserted and removed and includes an opening/closing section (60) having a first slit (61), a second slit (62), a second depression (65), and two third depressions (66). The second depression (65) is located at a portion corresponding to an intersection (63) at the concave surface (641) of the valve element (6), and the third depressions (66) are located at opposite ends, respectively, of the first slit (61). The second depression (65) extends in the direction of the thickness of the valve element (6) to reach the middle of the first slit (61) and does not reach the second slit (62).

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