Adjustable suction device for medical use

摘要

An adjustable, disposable suction device that is particularly adapted for medical use. The device is used for removing excess blood or body fluids from an open incision during surgery and is constructed so that it can drain the fluids from a point source or from a larger general area. In the latter case the device can be adjusted to control how much fluid is removed in a given period of time. The device is essentially comprised of a handle, a rigid outer tube formed with an oblique bend and a coacting flexible inner tube. The outer tube is connected at one end to the handle and has a plurality of longitudinally spaced radial apertures adjacent its free end. The flexible inner tube is positioned with a sliding fit in the rigid tube. The inner tube is open at its outer or free end but is otherwise imperforate. With this arrangement, the inner tube can be moved longitudinally within the outer tube to block all of the outer tube apertures or selectively open some or all of them. In a second embodiment the outer tube is larger in diameter allowing passage of fluids between the tubes.