| 摘要 |
An epidural filter has a planar housing 1, 1' with a flat lower surface taped to the patient's skin. An outlet 4, 4' at one end of the housing is connected to the epidural catheter and opens onto the lower surface of the filter element 2, 2'. The inlet 3, 3', at the other end of the housing is shaped to receive the nose 70 of a syringe and opens onto the upper surface of the filter element. The inlet is either fixed at an angle of about 30 DEG to the lower surface of the housing, or can be displaced upwardly to such an angle by means of a resilient portion 110, to facilitate connection to the inlet. <IMAGE> |
