| 摘要 |
The fetal contact cup portion of a fetal vacuum cup (150) has an inside surface which when applied to a fetal head, defines a fetal contact chamber (228) with the fetal head. One end of a tube is attached to the fetal contact cup (400) such that vacuums within the tube are applied within the fetal contact cup. The other end of the tube can be connected with a vacuum source (120), and with a handle. The tube has a very small average outside diameter compared with conventional fetal vacuum tubes. Thus the fetal vacuum cup (400) is less intrusive during insertion, and is more easil y maneuverable, especially when the fetus is mal-presenting in, for example, the high occipito posterior or high occipito lateral positions. The average outside diameter of the tube may be, for example, less than 150 mils, has a finger grip that compression fits into a recess defined by the outer surface of the fetal contact cup (400).
|
