Twin bore ophthalmologic tubing includes first and second tubes. The second tube has portions of differing hardness with one of the portions being at an end of that tube. The second tube has a portion at its other end with about the same hardness. Portions of the first and the second tubes may have about the same hardness. In some embodiments, portions of the first and second tubes with the same hardness can correspond to each other along the tubing. One of the portions can have a hardness of 80 to 90 shore A while the other portion can be 60 to 70 shore A. In some embodiments, portions with 60 to 70 shore A hardness can be about six to twelve inches long.一種雙孔型眼科學導管,其包括有第一和第二管。該第二管具有係為不同硬度之部分,而該等部分之一係位在該管的末端。該第二管在其之另一端上係具有與其大約相同之硬度的部分。該等第一和第二管之該等部分可以具有大約相同之硬度。在一些具體例中,該等第一和第二管之具有相同硬度的部分,可以沿著該導管而彼此相互對應。該等部分中之一者可以具有80至90蕭氏硬度A的硬度,而另一部分則可以是60至70蕭氏硬度A。在一些具體例中,具有60至70蕭氏硬度A之部分可以是長約6至12吋。14...手持工具22...抽吸管線24...灌洗管線26...脈衝引擎28...煮沸腔室29...彈簧30...檢測閥
