Aspects of the present disclosure are directed toward apparatuses, systems, and methods that comprise an introducer apparatus for facilitating subcutaneous implantation of a medical device. In certain instances, the apparatus may include a housing, an inserter configured to pass the medical device through the housing, and a tunneler configured to form a subcutaneous pocket for the medical device.

Disclosed are a channel device for surgery and a trigger structure. It aims at improving the problem that the operational efficiency of existing channel devices for surgery is not high. The channel device for surgery includes: a binding cord configured to be wound around a metal net; and a binding wire configured to pass through the binding cord and tighten up the binding cord, so as to compress the metal net, or configured to be pulled away from the binding cord, so as to loosen the binding cord and the metal net. In the trigger structure, different first locking portions are configured to cooperate with a first engaging portion, so as to drive the trolley to slide intermittently relative to the handle, such that a second engaging portion cooperates with different second locking portions, hereby locking the sliding trolley in different positions on the handle.

A surgical stapler includes a body portion and a tool assembly. The body portion includes a large diameter portion and a small diameter portion extending distally from the large diameter portion. The large diameter portion supports larger internal components of the device including a lockout assembly adapted to prevent refiring of the stapler to allow the diameter of the small diameter portion of the device to be minimized to facilitate passage of the small diameter portion of the stapler and the tool assembly through an 8 mm trocar.

A bipolar tunneling tool is configured to separate tissue adhesions and tunnel. The bipolar tunneling tool includes a handle, a tunneling shaft, a return electrode, an optical window, an active electrode, and an insulative housing. The tunneling shaft extends from the handle. The return electrode is disposed proximate a distal end of the tunneling shaft. The optical window is disposed proximate the distal end of the tunneling shaft, the optical window defining a channel. The active electrode is at least partially disposed within the channel. The active electrode is configured to dissect a tissue and cauterize the tissue. The insulative housing is configured to electrically insulate the active electrode from the return electrode.

Methods, devices and systems for separating an implanted object, such as a lead attached to a cardiac conduction device, from formed tissue within a blood vessel are provided. The methods, devices and systems for separating a lead from the tissue relate to dilating the tissue surrounding the lead from underneath the tissue and/or between the lead and the tissue.

A surgical apparatus includes an end effector having an ultrasonic blade, a clamp arm, and a clamp pad. The end effector applies ultrasonic energy at the blade. The clamp arm pivots relative to the blade. The clamp pad is positioned on the clamp arm adjacent to the blade. The clamp arm includes a latching feature to retain the clamp pad relative to the clamp arm to prevent the clamp pad from moving laterally, longitudinally, and perpendicularly relative to the clamp arm.

An insertion method includes: specifying a part of a mucous membrane which lies between a nasal cavity and a maxillary sinus and which is located in a space surrounded by an inferior nasal concha, a lacrimal bone, an ethmoid bone, and a palatine bone, as an opening formation position where an opening connected to the maxillary sinus is formed; forming the opening at the opening formation position; and inserting a medical device into the maxillary sinus through the formed opening.

A device for performing a cosmetic or medical procedure and methods of operating such a device are usable for treating fibrous adhesions, such as those implicated in the formation of cosmetic or medical conditions including but not limited to cellulite. Embodiments of the disclosure have been particularly developed for targeting and disrupting fibrous adhesions to restore or improve normal physiological tissue function and/or aesthetic appearance. In at least one embodiment, the device comprises an elongate body and one or more user controllable breaking means. Each breaking means is actuatable to move between a retracted position in which the breaking means is in a collapsed configuration and an operative position in which the breaking means is in an expanded configuration suitable to break a strand of fibrous material or fibrous connective tissue.

A medical device including an elongate member having a proximal end and a distal end and an end-effector disposed at the distal end of the elongate member is disclosed. The end-effector further includes a plurality of arms, which may pivot or move relative to one another. Further, each arm includes an inner edge defining a cutting edge, and an outer edge having at least one geometric feature for manipulating tissue.

A tissue dissector includes a handle portion and a head portion. The handle portion includes an actuation assembly having an actuator. The head portion includes an annular body having a blade assembly rotatably supported in the annular body. The blade assembly includes a blade member defining an aperture configured to receive tissue therethrough. The blade member is operatively coupled with the actuator for rotation about a central axis defined by the aperture. The handle portion and the head portion define a longitudinal axis that is disposed at an angle relative to the central axis.