Arthroscopic cutters are used for resecting tissues, such as meniscal tissues, in meniscectomies or other arthroscopic procedures. The arthroscopic cutters have a shaft assembly with openable-closeable jaws at a working end of the shaft. A handpiece having a motor drive may be detachably coupled to a hub on a hub end of the handpiece. When the shaft is coupled to the handpiece, the motor drive will couple to the jaw structure to open and close the jaw structure to cut meniscal and other tissues.

Disclosed herein is a medical device. The medical device includes an outer tubular member and an inner tubular member. The outer tubular member has a distal end, an open window disposed at the distal end, and one or more dimples. The inner tubular member has a distal tip and one or more axial grooves. The inner tubular member is configured to be received within the outer tubular member. The one or more axial grooves and the one or more dimples are configured to align the distal tip of the inner tubular member with the open window of the outer tubular member. The open window of the outer tubular member and the distal tip of the inner tubular member are configured to cut tissue.

A surgical instrument configured to cut tissue includes an outer member and an inner member at least partially received within the outer member. The outer member includes a cutting window near a distal end thereof. A driving assembly is coupled to the inner member and configured to cause the inner member to rotate around and move along a longitudinal axis of the outer member. A controller is configured to control the driving assembly to control at least one of an angular position, an angular velocity, or an angular acceleration of the inner member according a plurality of piecewise continuous profiles. The initial and final angular velocities of the inner member are zero, and the inner member cuts tissue extending into the cutting window.

An arthroscopic cutting probe includes an outer sleeve having a longitudinal bore and an outer cutting window at its distal end. An inner sleeve is rotationally disposed in a bore of the outer sleeve, and the inner sleeve has a distal end, a proximal end, a longitudinal passageway, and an inner cutting window at its distal. An active electrode sleeve is disposed on an outer surface of the inner sleeve in a position opposed to the inner cutting window. Rotation of the inner sleeve relative to the outer sleeve causes the inner cutting window to rotate past the outer cutting window to resect tissue received through the cutting windows as they pass each other. Radiofrequency current can be applied to the active electrode to enhance tissue cutting then the cutting windows are being rotated or to able or cauterize tissue when the cutting windows are held stationary with the active electrode disposed through the outer cutting window.

Disclosed herein is a surgical tool for debulking hard tissue. The surgical tool includes: (i) an elongated hollow member including a distally located bent section; (ii) a cable extending within the hollow member, along a predetermined length thereof; (iii) a headpiece positioned at, or distally to, the bent section; (iv) a rotation actuator coupled to the cable proximal end and configured to rotate the cable about a longitudinal axis thereof; and (v) a motion converter coupled to a distal end of the cable and to the headpiece, at least part of the motion converter is positioned in, and/or distally, to the bent section, the motion converter being configured to transform rotational motion of the cable into an axial, reciprocating motion of the headpiece. The headpiece is configured to break up hard tissue by hammering thereof, when effecting axial, reciprocating motion, while simultaneously minimizing damage to soft tissue if struck.

A vibrating tissue separator suitable for use in separating a lenticule established by a femtosecond laser during a smile procedure may include a surgical implement such as a blunt spatula mounted on a handle that carries a haptic actuator for applying vibratory motion to the surgical implement. A damping arrangement may be provided to isolate the surgeons hand from the vibrations which would otherwise be transmitted through the handle. The actuator may apply a linear vibration along the axis of the handle which applies a lifting and chopping motion to the tip of a surgical implement having a bend. The tip may be suitable to the tissue being separated. For example, for SMILE lenticule separation, a blunt or semi-sharp spatula, blunted wire or loop may be used. The direction of vibration at the tip may be changed by rotating the implement in a plane other than the plane of the bend or by rotating an actuator such as an LRA with respect to the handle.

An arthroscopic cutting probe includes an outer sleeve having a longitudinal bore and an outer cutting window at its distal end. An inner sleeve is rotationally disposed in a bore of the outer sleeve, and the inner sleeve has a distal end, a proximal end, a longitudinal passageway, and an inner cutting window at its distal. An active electrode sleeve is disposed on an outer surface of the inner sleeve in a position opposed to the inner cutting window. Rotation of the inner sleeve relative to the outer sleeve causes the inner cutting window to rotate past the outer cutting window to resect tissue received through the cutting windows as they pass each other. Radiofrequency current can be applied to the active electrode to enhance tissue cutting then the cutting windows are being rotated or to able or cauterize tissue when the cutting windows are held stationary with the active electrode disposed through the outer cutting window.

The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to endoscopic medical devices with distally actuated axial displacement configured to impart in-plane or rotational ultrasonic reciprocation to an end effector.

In the context of bone surgery and in particular arthroscopic surgery, there is frequently a need for the application of “percussive force” to the distal end component(s) of a surgical device, i.e., repetitive percutient or striking force analogous to that of a hammer driving a nail. Disclosed herein are mechanisms and methods for automating and/or controlling the application of such a percussive force so as to avoid the present need in the art for a “third hand”. The present invention addresses the significant and long felt need by providing a powered percussive driver device that may be controlled directly by the primary surgeon.

A surgical cutting device for performing a minimally-invasive surgical procedure and which includes an external hub including a housing and a cutter actuator housed within the housing, wherein the cutter actuator, a catheter including a first end coupled to the external hub, a second end opposite the first end, and an internal passage, a cutting tool coupled to the second end of the catheter and including a cutting element moveable relative to the second end of the catheter by the cutter actuator, and a motion transfer assembly extending through the internal passage of the catheter from the cutter actuator to the cutting tool, wherein the motion transfer assembly is configured to transfer motion from the cutter actuator to the cutting element of the cutting tool in response to the activation of the cutter actuator.