Abstract: This invention is directed to a medical device having an elongate shaft having a distal end and a controller coupled to the shaft. A control member can extend through at least part of the elongate shaft and at least part of the controller, wherein the control member in a tensioned configuration can be moveable by the controller to control the distal end of the shaft and the control member can be slack in an untensioned configuration. A tensioning mechanism can be configured to move relative to at least one of the elongate shaft and the controller to tension the control member and automatically lock the control member in the tensioned configuration.

Abstract: This invention is directed to a surgical instrument having an elongate shaft with a proximal and a distal end, and including a controller coupled to a proximal region of the elongate shaft. In a first configuration, the controller can control an end-effector coupled to the distal end of the elongate shaft via a control element moveably coupled to the controller. In a second configuration, the controller can move the distal end of the elongate shaft. The surgical instrument can also have an aperture configured to receive the control element in the first configuration and receive an insert element fixedly coupled to the controller and configured to cover the aperture in the second configuration.

Abstract: A medical device may include an end effector configured to perform a therapeutic procedure. The medical device may further include a guide having a modifiable shape. The guide may be adapted for insertion through a lumen of an access tube. Also, the end effector may be selectively attachable to the guide and configured to move along the guide.

Abstract: A resection device for resecting tissue from a body. The device includes an elongate member having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end. The device further includes a cap assembly configured to be coupled to the distal end of the elongate member. The cap assembly may include a first cap defining a resection loop channel and a distal end having a first opening. The assembly may further include a second cap configured to receive a portion of the first cap. The second cap includes a distal end having a second opening. A distal portion of the first cap and a distal portion of the second cap may cooperate to define a resection loop track for receiving a resection loop.

Abstract: A medical device and related methods of use are provided for capture and removal of tissue from body lumens. The device includes an end-effector unit configured to capture tissue, having a distal end and a proximal end. The distal end and the proximal end form a substantially closed structure, and the distal end is more flexible than the proximal end. The device also includes a control member at the proximal end for holding and controlling the severing device.

Abstract: Medical devices are disclosed including polypectomy snare devices. An example polypectomy snare device may include an elongated sheath having a distal end. A hollow shaft may extend through and be movable relative to the sheath. A distal portion of the shaft may have a slit formed therein. The shaft may be shiftable between a first configuration wherein the distal portion is substantially straight and a second configuration wherein the distal portion includes a bend. A snare wire may be disposed within the shaft. A distal section of the snare wire may extend through the slit when the shaft is in the second configuration.

Abstract: A snare for retrieving foreign objects within the body of a patient including a hollow elongate tubular member comprising an inner surface and an outer surface and a lumen defined by the inner surface, a proximal end and a distal end, the hollow elongate tubular member forms a loop at the distal end, the loop having an open position and a closed position, the loop comprising at least one opening and a wire slidably disposed in the lumen of the elongate tubular member, the wire comprising at least one engaging member for engaging tissue, the at least one engaging member extends through the at least one opening in the hollow elongate tubular member when the wire is in a first position and the at least one engaging member retracts into the lumen of the elongate tubular member when the wire moved to a in a second position.

Abstract: Embodiments include an instrument including an end effector located near a distal end of the instrument, an elongated member connected to the end effector, and a handle located near a proximal end of the instrument. The instrument also includes a ball and socket joint including a ball rotatable in a socket. The ball and socket joint connects the elongated member to the handle, and the handle is configured to move with respect to the elongated member via the ball and socket joint. The instrument further includes a control member connected to one of the ball or the socket, and the control member extends through the elongated member and connects the ball and socket joint to the end effector to control movement of the end effector.