| 摘要 |
Patient-controlled analgesia apparatus has a pump (10) comprising a resilient sleeve (20) exposed on all sides for actuation between the fingers and thumb of a patient. The inlet to the pump (10) has a flow restrictor (23) and is connected to an infusion bag (1) via tubing (6), a flow limiting valve (7) and a spike (5). The outlet of the pump (10) has a one-way valve (29).
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