SURGICAL SUCTION DEVICE THAT USES POSITIVE PRESSURE GAS

摘要

A surgical suction device that uses positive pressure gas is shown and described. The surgical suction device includes an air amplifier. The air amplifier includes a structure defining a generally cylindrical cavity having a first opening at a first end and a second opening at a second end. The cylindrical cavity is defined by an inner wall of the cavity. The air amplifier includes an annular opening in the inner wall near the first end. The annular opening defines a jet opening adapted to allow a pressurized gas to flow out of the annular opening such that a low pressure region is produced at the first end and an amplified flow is produced at the second end. The annular opening is further configured such that the pressurized gas enters the cavity at an angle with respect to the inner wall of the cavity that is towards the second end.

主权项

1. A passive suction device comprising
a first hollow segment having a central axis, wherein the first hollow segment comprises
an inlet port configured to receive a gas, a liquid, a solid or any combination thereof;a first opening; anda first facing surface positioned along the outside of the first opening; a second hollow segment having an interior and comprising
an outlet port configured to release the gas, the liquid, the solid or any combination thereof;a second opening facing the first opening; anda second facing surface positioned along the outside of the second opening and facing the first facing surface; and an airflow amplifier comprising:
a pressurized gas port configured to receive a pressurized gas flow; anda conduit having its interior surface formed by the first facing surface and the second facing surface, wherein the conduit is in fluid communication with the pressurized gas port, wherein the first facing surface comprises an angle less than 90 degrees relative to the central axis of the first hollow segment, and wherein the conduit is configured to receive the pressurized gas flow and direct the pressurized gas flow into the second opening such that the pressurized gas flow through the second opening generates an area of low pressure which generates a suction flow causing the inlet port to receive the gas, the liquid, the solid, or the combination thereof.