| abstract |
Apparatus, systems and methods for providing suction are described herein. In some embodiments, inhalation occurs passively. A surgical suction device is disclosed herein that includes an air amplifier. In some embodiments, the air amplifier includes a structure forming a generally cylindrical cavity having a first opening at a first end and a second opening at a second end. In some embodiments, the cylindrical cavity is formed by the inner wall of the cavity. In some embodiments, the air amplifier includes an annular opening in the inner wall near the first end. In some embodiments, the annular opening defines an injection opening configured such that a pressurized gas flows out of the annular opening such that a low pressure region is created at the first end and an amplified flow is produced at the second end. The annular opening is also configured to allow the pressurized gas to enter the cavity at an angle relative to the inner wall of the cavity facing the second end. |