| 摘要 |
A reflux trap for use in a plasma generator and delivery system to prevent back flow of fluids and debris from a patient to the plasma generator during a surgical procedure comprising a trap housing including a proximal diffuser chamber and a distal deflection chamber having a collection area separated by a baffle disposed within the trap housing having at least one gas flow aperture formed therethrough, a proximal inlet port and a distal outlet port formed on opposite end portions of the trap housing to feed gas to and from the trap housing through the proximal diffuser chamber, gas flow aperture and the distal deflection chamber, the baffle further includes a diffuser member disposed in the proximal diffuser chamber such that gas fed into the proximal diffuser chamber through the proximal inlet port impigns thereon and diffused through the gas flow aperture into the distal deflection chamber and through the distal outlet port to the surgical site on the patient and a deflection member disposed in the distal deflection chamber such that fluids and debris flowing back from the patient through the outlet port into the distal deflection chamber impign thereon and are deflected away from the gas flow aperture to the collection area preventing fluids and debris from migrating through the gas flow aperture into the proximal diffuser chamber isolating the plasma generator against any back flow of fluid and debris from the patient.
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