Abstract: An open-end wrench for gripping a hardware element such as a hexagonal nut or the hexagonal head of a bolt is disclosed which allows the wrench to be used for rotational driving of the hardware element in either direction without requiring the wrench to be periodically removed, repositioned, and replaced on the hardware element in order to continue rotation of the hardware element in the desired direction. A retaining member having an opposing jaw is mounted onto a handle having a fixed jaw in a manner whereby the retaining member has simultaneous freedom of movement in both a linear direction and in a rotational direction between first and second positions. When the handle of the wrench is turned in one direction, the nut or the head of the bolt will be rotated, while when the handle of the wrench is turned in the opposite direction, the jaws of the wrench will slip over the nut or the head of the bolt in a ratcheting manner.

Abstract: Nasopharyngeal fluid suction devices are used for clearing liquid secretions from a human's airway. However, the prior art devices have a potential disadvantage in that the operator's mouth may be contaminated by suction liquid, and further that operator-assisted coordination frequently occurs resulting in poor timing, less effective and longer duration suction time. To overcome these disadvantages a body fluid suction device is provided having a catheter for collecting liquid secretions from the nasopharynx coupled to a flexible tubing for transporting the suctioned liquid and gaseous materials. A regulating valve is coupled to the flexible tubing and is responsive to external positive pressure to regulate the suction flow. An extension tubing adapter couples the regulating valve to a source of suction.