| 摘要 |
The present disclosure relates to a self-venting cannula assembly. The self-venting cannula assembly including an outer tube that defines a throughbore, an inner tube, a vent aperture, and a filter element. The inner tube is positioned within the outer tube, which defines a vent channel therebetween. The vent aperture is formed in the outer tube to provide fluid communication between the vent channel and an external environment. The filter element is positioned over the vent aperture and prevents particles having a dimension greater than about 0.2 microns from passing therethrough.
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