The present disclosure includes a device for retrieving foreign material within a blood vessel of a patient. Some foreign retrieval devices include an elongated body configured to be disposed within a catheter, the elongated body having a proximal end, and a distal end opposite the proximal end; and one or more arms, each arm having a proximal end coupled to the distal end of the elongated body, and a distal end extending toward the proximal end of the elongated body. In some foreign retrieval devices, each of the arms is configured to be actuated from a closed position to an open position.

A system for excising an implanted clip approximating opposed valve leaflets in a heart valve includes a capture catheter configured to be introduced proximate the valve leaflets on one side of the clip, a transfer catheter configured to be introduced proximate the valve leaflets on another side of the clip, and a cutting tool configured to be deployed between the capture and transfer catheters and to be engaged against tissue of at least one of the valve leaflets and to excise the clip. A removal catheter may optionally be used to remove the clip from the heart.

A guide wire gripping device is provided that includes: a sheath; an advanceable and retractable part extending along the longitudinal axis of the sheath; an operation control that moves the advanceable and retractable part along the longitudinal axis; a grasping portion having a contact surface having a peripheral edge surrounded by a distal end, a proximal end, and a pair of side ends; and a support part connected to the advanceable and retractable part and fixed to one of the pair of side ends.

Described are a multipurpose handles that can be incorporated into medical device delivery systems. Also described are medical devices, including medical snare devices, that can incorporate the handles or features thereof. An actuation button of the multipurpose handle can be moved longitudinally to move a device portion (e.g. snare loop) longitudinally, e.g. for deployment or retraction. The actuation button can also be rotated to rotate a device portion (e.g. snare loop). Sealing arrangements can be provided and can provide sealing functions in respect of a controlled medical device structure while the actuation button is moved longitudinally or rotated. Methods of using the handles and medical snare or other devices incorporating them are also described.

A device (10) for capturing a guide wire (50) comprises a snaring device (20, 30) and an auxiliary catheter (40). The auxiliary catheter (40) is configured to slidingly accommodate the guide wire to be caught so as to extend a distal end (47) thereof beyond the distal end of the guide wire in order to be caught by the snaring device (20, 30) while the guide wire (50) is in a retracted position in the auxiliary catheter (40). The auxiliary catheter preferably comprises a portion which is at least partially echo-transparent and/or radio-transparent and an end portion (44) which is radio-opaque and/or echo-opaque.

Disclosed are systems, methods, and devices for percutaneous retrieval of objects, such as endovascular devices, from an internal body space. The present inventions have vascular, non-vascular (gastrointestinal), and surgical (laproscopic) applications. The inventions include a retrieval end having one or more compressed states and an expanded state, the retrieval end adopting the expanded state when the retrieval end is deployed into a subject's internal body space, the retrieval end having a mouth through which an object can be passed into an interior space within the retrieval end when the retrieval end is in the expanded state, the mouth being adjustable between an opened state and a closed state; wherein when at least a portion of the retrieval end of the inner sheath is transitioned to a compressed state following capture of the object, the retrieval end exerts an inward force that at least partially collapses or compresses the object.

In some examples, a catheter includes an elongated body including a proximal portion and a distal portion. The elongated body includes an inner liner, an outer jacket, a structural support member positioned between at least a portion of the inner liner and at least a portion of the outer jacket, and an expandable member coupled to the structural support member at the distal portion of the elongated body. The expandable member may be configured to expand radially outward, e.g., to engage a clot within vasculature of a patient.

A system for fracturing a frame of a deployed prosthesis with ultrasonic vibration includes a shaft, a tip assembly, an ultrasonic electric generator, and an ultrasonic transducer. The shaft includes a proximal portion and a distal portion. The tip assembly is coupled to the distal portion of the shaft. The tip assembly includes a cutting edge. The ultrasonic transducer is electrically coupled to the ultrasonic generator. Ultrasonic vibration generated by the ultrasonic transducer is translated to the tip assembly. The cutting edge of the tip assembly is configured to focus the vibration of the tip assembly onto a frame of a deployed prosthesis to fracture the frame of the prosthesis. The ultrasonic transducer may be coupled to the proximal portion or the distal portion of the shaft.

A clot removal device for removing a clot from a body vessel, the clot removal device including: an elongated member sized to traverse vasculature and having a proximal end and a distal end, the elongated member comprising a longitudinal axis; and an engagement structure connected to the distal end of the elongated member, the engagement structure comprising a plurality of pinching cells connected to each other, the at least one pinching cell being configured to engage clot in an expanded deployed configuration and to pinch the clot upon actuation to the clot pinching configuration, a first pinching cell of the plurality of pinching cells being connected to a second pinching cell of the plurality of pinching cells such that the second pinching cell is rotatable respective the first pinching cell substantially about the longitudinal axis.

A medical device may include a first body having a lumen and a central longitudinal axis; a second body positioned at least partially within the lumen of the first body; and an arm assembly. The arm assembly may include a first arm coupled to the first body and extending distal to the first body; and a second arm coupled to the second body and extending distal to the second body. A distal end portion of the first arm may be coupled to a distal end portion of the second arm. Distal movement of the second body may be configured to move the first arm and the second arm radially-outward away from the central longitudinal axis. Proximal movement of the second body, relative to the first body, may be configured to move the first arm and the second arm radially-inward towards the central longitudinal axis.