Patent ID: 8591485

Claim:
A medical vacuum pump system, the system comprising: a pump housing having an interior cavity; a filter chamber located inside the pump housing, the filter chamber being substantially isolated from the interior cavity; an access panel on an exterior of the pump housing, the access panel providing access to the filter chamber; an internal filter located inside the filter chamber, the internal filter having an inlet and an outlet, preventing at least a portion of bacteria entering the inlet from passing to the outlet and halting flow through the internal filter when the internal filter absorbs a predetermined amount of moisture; a bushing located in an orifice of the pump housing, the bushing having a first end and a second end; an outer sleeve connected to the first end of the bushing and in communication with the filter chamber; an internal inlet tube located inside an outer containment tube, the internal inlet tube having a first end and a second end; a vacuum port releasably engaged in the second end of the bushing and protruding from a surface of the pump housing; a vacuum pump motor, wherein the vacuum pump motor is in communication with the internal filter; electronic controls associated with the pump motor and with a pressure sensor in communication with the pump motor, wherein the electronic controls stop the pump motor when the pressure sensor determines there is no flow through the internal filter; wherein the first end of the internal inlet tube is connected to the internal filter and the second end of the internal inlet tube is connected to the vacuum port; and wherein the outer sleeve isolates the internal inlet tube from the interior cavity.