| 摘要 |
A disposable pump has a pump unit 4 engaging with a drive unit 6. The pump unit 4 is manufactured out of three mouldings, one being the flexible wall which forms in part the membrane or diaphragm of the pump, sandwiched between upper and lower units 50,70. The upper unit includes detent extensions 10 in the form of legs which extend around the lower unit for engagement with the drive unit. The drive unit drives a piston 18 which engages with a gripping part 20 which is integrally formed on the flexible wall of the pump unit to form a snap fit connection such as a ball and socket arrangement or by one part having a magnet and the other part having a magnetic material.
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