Abstract: An adjustable valve assembly is disclosed. The valve assembly comprises a mounting portion and an adjustment assembly comprising an adjustable member threadably engaged with the mounting portion, the adjustable member adapted to change its position relative to the mounting portion when rotated and a clevis coupled to the adjustable member, wherein the position of the clevis relative to the mounting portion is adjustable by rotation of the adjustable member.

Abstract: An adjustable valve assembly is disclosed. The valve assembly comprises a mounting portion and an adjustment assembly comprising an adjustable member threadably engaged with the mounting portion, the adjustable member adapted to change its position relative to the mounting portion when rotated and a clevis coupled to the adjustable member, wherein the position of the clevis relative to the mounting portion is adjustable by rotation of the adjustable member.

Abstract: An independently positionable key switch including a key base having a key cap receiving opening and at least one gripping feature operative to facilitate gripping of the key base. An actuatable key cap is arranged in the key receiving opening of the key base. The key cap is actuatable between an unactuated position and an actuated position.

Abstract: A configurable computer input device. A base is operable to generate and detect a radio frequency carrier signal. A plurality independently positionable input members are each operatively positioned in the vicinity of the base and individually operable to modulate the carrier signal responsive to its identity and status.

Abstract: An independently positionable key switch including a key base having a key cap receiving opening and at least one gripping feature operative to facilitate gripping of the key base. An actuatable key cap is arranged in the key receiving opening of the key base. The key cap is actuatable between an unactuated position and an actuated position.

Abstract: A limited backflow reflux valve for connection between a syringe, catheter, and bulk container of injection fluid. The reflux valve permits injection of fluid from the syringe through the catheter into the patient, and also permits refilling of the syringe from the bulk container, without disconnection of any tubing. The reflux valve also permits a limited volume of fluid to backflow from the catheter into the syringe, so that the catheter may be checked for patency, but prevents any further backflow along this path after this limited volume. Therefore, the limited backflow reflux valve not only permits injection through the catheter, but also permits both withdrawal of blood from the patient and refilling of the syringe from the bulk contrast media container, without requiring disconnection of the catheter or other tubing and without risk of contamination of the syringe or introduction of air, increasing the efficiency of the injection process, enhancing safety, and reducing waste of injection fluid.

Abstract: A limited backflow reflux valve for connection between a syringe, catheter, and bulk container of injection fluid. The reflux valve permits injection of fluid from the syringe through the catheter into the patient, and also permits refilling of the syringe from the bulk container, without disconnection of any tubing. The reflux valve also permits a limited volume of fluid to backflow from the catheter into the syringe, so that the catheter may be checked for patency, but prevents any further backflow along this path after this limited volume. Therefore, the limited backflow reflux valve not only permits injection through the catheter, but also permits both withdrawal of blood from the patient and refilling of the syringe from the bulk contrast media container, without requiring disconnection of the catheter or other tubing and without risk of contamination of the syringe or introduction of air, increasing the efficiency of the injection process, enhancing safety, and reducing waste of injection fluid.