A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/106
A61M 1/00 (2006.01) A61M 3/02 (2006.01)
Patent
CA 1101286
FLUID EVACUATOR Abstract of the Disclosure A wound evacuator adapted for use with an external negative pressure source to provide continuous fluid evacu- ation and which includes its own negative pressure source to provide limited time duration evacuation. In one embodi- ment, the evacuator includes a substantially rigid container and an air inflatable member within the container, the container and inflatable member having a combined configur- ation 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 mem- ber, 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.
250179
Nehring John R.
Bard (c. R.) Inc.
Gowling Lafleur Henderson Llp
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