| 摘要 |
FLUID EVACUATOR A wound evacuator adapted for use with an external negative pressure source to provide continuous fluid evacuation and which includes its own negative pressure source to provide limited time duration evacuation. In one embodiment, the evacuator includes a substantially rigid container and an air inflatable member within the container, the container and inflatable member having a combined configuration which avoids unnatural deformation of the inflatable member by the container in at least one direction of expansion of the inflatable member. A resilient-bulb type manual pump is provided for inflating the inflatable member, and a check valve with a leakage path is used to control the deflation thereof. An inwardly extending mouth and notch arrangement is used for controlling the sequence of sealing of the inlet and outlet ports by the inflatable member. In another embodiment, the evacuator has at least one wall with sufficient resilience to return to an undeformed state, upon release of pressure deforming the container, to cause inflation of the air inflatable member. A one-way valve is positioned in the outlet port preventing flow back to the wound area. |
