Abstract: The present disclosure relates to medical devices for facilitating introducing, removing, and/or exchanging an accessory and/or tool, such as a guidewire. In an embodiment, a catheter port for introducing an accessory may comprise a body comprising a proximal end, a distal end, a longitudinal axis extending therethrough, and a main channel extending along the longitudinal axis along a length of the body. The main channel may be substantially coaxial with a lumen of a catheter. An extension may extend from the body. The extension may comprise an accessory channel extending through the extension. The accessory channel may be in fluid communication with the main channel. The accessory channel may be configured to accept the accessory. A positive stop may be disposed along the accessory channel. The positive stop may be configured to abut a distal end of the accessory.

Abstract: A medical device that includes a first body including a first actuation member including a first connector and a second actuation member. The medical device includes a second body for attachment to, and detachment from, the first body. The second body including an actuation wire, a second connector at a proximal end of the actuation wire, and a valve having one or more channels for receiving a material. Attachment of the first body with the second body results in the first connector engaging the second connector, such that movement of the first actuation member causes a corresponding movement of the actuation wire. Moving the second actuation member into the second body to interact with the valve is configured to selectively direct the material through the one or more channels.