The present invention provides ventricular restoration devices and snare devices as part of a papillary muscle approximation and ventricular restoration (PAP-VR) system and methods for using the same to repair mitral regurgitation (MR). The ventricular restoration devices include two collapsible anchors positioned at opposing ends of a collapsible stent, wherein the devices are threaded through a subject's anatomy such that the anchors rest outside of tissue and are held taut by the stent inbetween. The snare devices comprise an out-of-plane curved construction to navigate magnetized trapping lines around difficult to reach anatomy to lasso and tighten anatomical structures.

The present disclosure relates to tissue traction devices and systems. In one example, a tissue tensioning system may include a filament having a first end comprising an attachment member, a second end, and a length therebetween extendable externally along a catheter. A first tissue fastener may be engageable with the attachment member and with a target tissue. The second end of the filament may be translatable to adjust a tensional force along the filament.

An apparatus includes: a expandable structure formable into three dimensional shapes including a range of diameters and corresponding lengths; a movable component moveable between a range of positions effecting the range of diameters; and a mechanical linkage disposed between the movable component and the expandable structure. The expandable structure is configured to fit inside a working channel of an endoscope when the expandable structure is collapsed. The mechanical linkage is configured to move the collapsed expandable structure through the working channel to a selected location past a distal end of the endoscope and to increase and decrease a diameter of the expandable structure in response to changes in the position of the movable component when the expandable structure is at the selected location.

A catheter system for retrieving a leadless cardiac pacemaker from a patient is provided. The cardiac pacemaker can include a docking or retrieval feature configured to be grasped by the catheter system. In some embodiments, the retrieval catheter can include a snare configured to engage the retrieval feature of the pacemaker. The retrieval catheter can include a torque shaft selectively connectable to a docking cap and be configured to apply rotational torque to a pacemaker to be retrieved. Methods of delivering the leadless cardiac pacemaker with the delivery system are also provided.

An improved assembly for securing an implantable medical device for retrieval from an implant site includes a plurality of snares, wherein distal openings of a first snare carrier lumen and a second snare carrier lumen have a pre-set offset established therebetween. First and second snare shafts, to which first and second snare loops are coupled, respectively, extend within the corresponding snare carrier lumens such that each loop is located in proximity to the corresponding distal opening of the lumen. The pre-set offset allows an operator to simultaneously position the snare loops around the device; and, when the operator retracts the snare shafts to collapse the snare loops until the loops fit snuggly around the device, the pre-set offset can help to align the device for retrieval.

The present disclosure relates to a ligation device, an unlocking method, and a ligation instrument. The ligation device may include a clip and a limiting tube. A distal end of the clip may be used for ligation. The limiting tube may be provided with an accommodation channel, and a proximal end of the clip may be connected with the accommodation channel, and the proximal end of the clip may move into or out of the limiting tube. The clip may be provided with a locking portion, and the limiting tube may be provided with a locking position that is matched with the locking position. When the locking portion is locked with the locking position, the locking portion may be unlocked from the locking position by operating the locking portion. Alternatively, the clip may be provided with an unlocking portion that is coupled with the locking portion. The locking portion may be unlocked from the locking position by operating the unlocking portion. The ligation device may be re-opened after being locked for ligation, causing no secondary damage to the ligated tissue.

Snare device with anti-skewing. In one embodiment, the snare device includes a core-wire. The core-wire is made of a superelastic material and includes a proximal portion of greater cross-sectional area and a distal portion of lesser cross-sectional area. The distal portion includes a looped shape in a relaxed state. A flexible coil is mounted around the core-wire and is straight in a compressed state. The distal ends of the core-wire and the coil are coupled together. The proximal end of the core-wire is coupled to a handle of an actuator, and the proximal end of the coil is coupled to a slide of an actuator, the slide being slidably mounted on the handle. The tensile strength of the coil multiplied by the cross-sectional area of the coil is greater than the upper plateau stress of the core-wire distal portion multiplied by the cross-sectional area of the core-wire distal portion.

A tool for use by a surgeon for coupling to a working channel port and for operating a sheath and wire including a basket device for capturing an object to be removed from a body. The tool includes a controller adapted to be coupled to the sheath and the wire for selectively controlling the position of the wire with respect to the sheath and for operating the basket device between a first, closed position and a second, open position, the controller including a base portion having a wire actuation unit including a movable plunger for coupling with the wire and for moving the wire with respect to the sheath; and a sheath control unit removably coupled to the wire actuation unit for independently controlling the position of the sheath. The controller is configured to longitudinally move the wire and operate the basket device to selectively open and close the basket.

A suture placement system is disclosed. The suture placement system has a plate defining a first opening spaced from a second opening. The suture placement system also has a first lumen having proximal and distal ends, wherein the distal end of the first lumen is coupled to the first opening. The suture placement system further has a second lumen having proximal and distal ends, wherein the distal end of the second lumen is coupled to the second opening. The suture placement system also has a guide coupled to the plate. A method of minimally invasive suture placement is also disclosed.

A surgical device for arthroscopy includes an insertion arm having a folded contact end, a handle connected to a connection end of the insertion arm, opposite to the folded contact end, and extending transversely to the insertion arm, and a retrieval element connected to the insertion arm and mobile along the insertion arm between a retracted position and an extracted position in which it intercepts a leading end of a suture thread at the folded contact end, and mobile between the extracted position and the retracted position in which it holds the leading end. The retrieval element is a basket made of flexible material defining a containment volume for receiving said leading end of the suture thread. The containment volume is configured to expand in the transition between the retracted position and the extracted position and to shrink in the transition between the extracted position and the retracted position.