阅读说明：本技术 用于心脏辅助系统的泵单元的进给管线、心脏辅助系统和用于生产用于心脏辅助系统的泵单元的进给管线的方法 (Feed line for a pump unit of a heart assist system, heart assist system and method for producing a feed line for a pump unit of a heart assist system ) 是由 英戈·斯托兹 法比安·艾伯格 彼得·瓦瑟曼 于 2019-07-19 设计创作，主要内容包括：本发明涉及用于心脏辅助系统(100)的泵单元(110)的进给管线(105)。进给管线(105)被体现为将流体流引导到心脏辅助系统(100)的泵单元(110)。进给管线(105)包括：进给头部分(130),进给头部分具有至少一个引入开口(140),以用于将流体流引入到进给管线(105)中；以及具有内表面轮廓的轮廓部分(135)。轮廓部分(135)邻近进给头部分(130)设置。轮廓部分(135)的在第一位置处的内直径大于在第二位置处的内直径。为了减小内直径,内表面轮廓在第二位置处是倒圆的。(The invention relates to a feed line (105) for a pump unit (110) of a heart assist system (100). The feed line (105) is embodied as a pump unit (110) directing a fluid flow to the heart assist system (100). The feed line (105) comprises: a feed head portion (130) having at least one introduction opening (140) for introducing a fluid stream into the feed line (105); and a contoured portion (135) having an inner surface contour. The contoured portion (135) is disposed adjacent the feed head portion (130). The inner diameter of the profile portion (135) at the first location is greater than the inner diameter at the second location. To reduce the inner diameter, the inner surface profile is rounded at the second location.)

1. Feed line (105) for a pump unit (110) of a heart support system (100), wherein the feed line (105) is configured to direct a fluid flow to the pump unit (110) of the heart support system (100), wherein the feed line (105) has the following features:

a feed head portion (130) having at least one introduction opening (140) for introducing a fluid stream into the feed line (105); and

a profile portion (135) having an inner surface profile (205), wherein the profile portion (135) is disposed adjacent the feed head portion (130), wherein an inner diameter (210) of the profile portion (135) at a first location (215) is greater than the inner diameter (210) at a second location (220), wherein the inner surface profile (205) has a rounded portion (225) at the second location (220) for reducing the inner diameter (210).

2. The feed line (105) of claim 1, wherein the inner diameter (210) of the profile portion (135) at a third location (235) is larger than the inner diameter (210) at the second location (220), in particular wherein the second location (220) is located between the third location (235) and the first location (215).

3. The feed line (105) of any one of the preceding claims, wherein the first location (215) is located in the profile portion (135) between the feed head portion (130) and the second location (220).

4. The feed line (105) according to any one of the preceding claims, wherein the length of the profile portion (135) corresponds to up to two times the inner diameter (210) of the profile portion (135), in particular wherein the length of the profile portion (135) corresponds to the radius of the feed line (105) within a tolerance range.

5. The feed line (105) according to any one of the preceding claims, wherein an inner radius of the profiled section (135) at the second location (220) is at most one fifth smaller than an inner radius at the first location (215).

6. The feed line (105) according to any one of the preceding claims, wherein the inner surface profile (205) is formed rotationally symmetrically.

7. Feed line (105) according to any one of the preceding claims, wherein a wall thickness of the profile portion (135) at the first location (215) is smaller than the wall thickness at the second location (220), and/or wherein the inner surface profile (205) is configured as an insert element (805, 810) of the profile portion (135).

8. The feed line (105) according to any one of the preceding claims, wherein at least one inlet edge of the introduction opening (140) of the feed head section (130) is rounded.

9. The feed line (105) according to any one of the preceding claims, wherein the profile portion (135) has a constant outer diameter (245).

10. A heart support system (100) with a feeding line (105) according to any of the preceding claims 1-9.

11. Method (900) for producing a feed line (105) for a pump unit (110) of a heart support system (100), wherein the feed line (105) is configured to direct a fluid flow to the pump unit (110) of the heart support system (100), wherein the method (900) comprises the steps of:

forming (901) a feed head section (130) with at least one introduction opening (140) for introducing a fluid stream into the feed line (105); and forming a profile portion (135) having an inner surface profile (205), wherein the profile portion (135) is disposed adjacent the feed head portion (130), wherein an inner diameter (210) of the profile portion (135) at a first location (215) is greater than the inner diameter (210) at a second location (220), and wherein the inner surface profile (205) has a rounded portion (225) at the second location (220) for reducing the inner diameter (210).