Abstract: Systems, devices, and related methods for coupling medical devices are described. A medical system may include a first medical device having a handle and a shaft extending distally from the handle, and may include a second medical device including a handle having an actuator and a shaft extending distally from the handle. The actuator may be configured to deflect the shaft of the second medical device. The medical system may further include an attachment device that may be configured to removably couple the first medical device to the second medical device. The attachment device may include a linkage that may be configured to be coupled to the actuator. The linkage may be external to the handle of the second medical device. The linkage may include a lever and movement of the lever may be configured to articulate the actuator of the second medical device.

Abstract: Numerous devices are described. One device may comprise: a handle including a wire attachment portion; an actuator movably mounted to the handle, the actuator including a reaction chamber; a plunger movably mounted to the actuator, the plunger including a distal stop with a sheath attachment portion, and a proximal stop located in the reaction chamber; a resilient element including a distal end attached to the proximal stop, and a proximal end movable relative to plunger; and a force reduction element located in the reaction chamber between the resilient element and a reaction surface in the cavity. The resilient element may bias the plunger distally relative to the actuator, and be compressed when a proximally-directed force is applied to the plunger. The force reduction element may dissipate a portion of the proximally-directed force. Related devices and methods are also described.

Abstract: Numerous devices are described. One device may comprise: a handle including a wire attachment portion; an actuator movably mounted to the handle, the actuator including a reaction chamber; a plunger movably mounted to the actuator, the plunger including a distal stop with a sheath attachment portion, and a proximal stop located in the reaction chamber; a resilient element including a distal end attached to the proximal stop, and a proximal end movable relative to plunger; and a force reduction element located in the reaction chamber between the resilient element and a reaction surface in the cavity. The resilient element may bias the plunger distally relative to the actuator, and be compressed when a proximally-directed force is applied to the plunger. The force reduction element may dissipate a portion of the proximally-directed force. Related devices and methods are also described.