An ultrasonic instrument for use during a surgical procedure includes a body, a shaft assembly, an ultrasonic blade, and an actuation assembly. The body is configured to receive an ultrasonic transducer for selectively generating a first or a second predetermined oscillation. The shaft assembly projects from the body and includes an acoustic waveguide connected to the ultrasonic blade. The actuation assembly includes an activator ring and an activation mechanism. The activator ring is selectively movable along the body such that the activator ring is accessible to be gripped by an operator around an entirety of an outer circumferential surface of the activator ring. The activation mechanism is connected to the activator ring such that the activation mechanism selectively moves along the body in conjunction with the activator ring. At least a portion of the activation mechanism is configured to selectively direct the ultrasonic transducer to oscillate the ultrasonic blade.

Electrosurgical forceps have a body portion and two buttons. A first electrode is supported by the body portion and terminates at a first end. A second electrode is positioned parallel to the first electrode. The second electrode terminates at a second end. A sheath is positioned around the first electrode and the second electrode and terminates at a sheath end. The first end and the second end extend axially out from the sheath end, wherein the sheath is movably supported by the body portion.

A steerable laser probe may include a handle, an actuation structure, an optic fiber, and a housing tube. The housing tube may include a first housing tube portion having a first stiffness and a second housing tube portion having a second stiffness. The second stiffness may be greater than the first stiffness. The optic fiber may be disposed within the housing tube and within an inner bore of the handle. A compression of the actuation structure may be configured to gradually curve the optic fiber. A decompression of the actuation structure may be configured to gradually straighten the optic fiber.

A surgical instrument with improved end-effector gripping force. The instrument comprises a shaft, which may be inserted into a body of a patient. The articulated end-effector is mounted on the distal extremity of the instrument shaft and comprises a plurality of links interconnected by a plurality of joints, whose movements are remotely actuated by the surgeon's hands. This remote actuation is accomplished through mechanical transmission, mainly along flexible elements, which are able to deliver motion from a set of actuation elements, placed at a proximal extremity of the shaft, to the instrument's articulated end-effector. The articulated end-effector further comprises one or more cam-and-follower mechanisms that are able to amplify the force transmitted by the flexible elements so that the actuation force at the instrument jaws is maximized and the tension on the transmission elements minimized, thus increasing the fatigue resistance and life of the instrument.

Surgical instrument subcomponent integration by additive manufacturing may include identifying at least two subcomponents of a multi-component assembly wherein a first subcomponent of the at least two subcomponents has a first functionality and wherein the first subcomponent of the at least two subcomponents is manufactured from a first material having a first set of material properties. Surgical instrument subcomponent integration by additive manufacturing may include modifying one or more properties of the first subcomponent of the at least two subcomponents to reproduce the first functionality when the first subcomponent is manufactured from a second material having a second set of material properties. Surgical instrument subcomponent integration by additive manufacturing may comprise integrating the at least two subcomponents by manufacturing an integral component by additive manufacturing wherein the integral component is manufactured from the second material and wherein the first functionality is retained.

The present disclosure describes systems and methods for pressure-driven micro-surgical tool actuation. The systems and methods may encompass the use of a remote handle held by a first hand of a user as well as a surgical tool located in the eye of a patient. A primary actuator may be included in remote handle and operable to be actuated by a mechanical force exerted on the handle. Actuating the primary actuator pressurizes a fluid within a length of tubing. The pressurized fluid may be transmitted to a dynamic tool held by a second hand of the user, where the pressurized fluid may be used to actuate a subordinate actuator. Actuation of the subordinate actuator may actuate a dynamic component of the dynamic tool.

Methods and devices for ophthalmic tissue closure and fixation of ophthalmic prostheses are provided. In accordance with some embodiments, devices for both grasping and clipping a plurality of ocular tissue and ocular prostheses are provided. Various device embodiments are provided for both malleable clips and delivery of normally closed clips (i.e. shape memory). The device may accommodate a plurality of clips which include, but are not limited to: malleable metals, absorbable, shape memory, drug-eluting, and adhesive dispensing. The clips may be pigmented to match the colors of associated tissue (cornea, iris, conjunctiva, sclera, retina) to serve to camouflage fixation clips for healing duration or permanently. According to one aspect, shallow angle access to anatomy may be provided by specialized angulation of device shaft and closure jaws that are intended to access the eye through a small self-healing cornea incision and/or any ocular tissue.

A medical device includes a handle with a proximal arm and a distal arm. The proximal arm and the distal arm are pivotable via a joint. The medical device also includes a tube coupled to the distal arm and a drive wire. A distal portion of the drive wire includes an expandable end effector. A portion of the drive wire is positioned within the tube, and a different portion of the drive wire extends proximally of the distal arm and is coupled to the proximal arm.

A medical instrument effectively suppresses a situation in which the edge of a blade springs immediately after completion of incision, excision, or the like. The medical instrument (1) includes manipulation members (14) that are held by a user, elastic members (11) that are respectively secured on one end of the manipulation members, and intersect each other at one end thereof, and opening-closing members (15) that are respectively secured on the other end of the manipulation members (14), and intersect each other at a pivot (13), functional parts (15a) for implementing a gripping operation, a holding operation, a cutting operation, or the like being respectively provided at one end of the opening-closing members (15), the functional parts (15a) being opened and closed by adjusting a pressing force applied to the manipulation members (14), the opening-closing members (15), the manipulation members (14), and the elastic members (11) being configured so that the pressing force applied to the manipulation members (14) and an opening-closing amount of the functional parts (15a) have a linear proportional relationship during a period in which the functional parts (15a) are operated.

A steerable laser probe may include a handle, an actuation structure, an optic fiber, and a housing tube. The housing tube may include a first housing tube portion having a first stiffness and a second housing tube portion having a second stiffness. The second stiffness may be greater than the first stiffness. The optic fiber may be disposed within the housing tube and within an inner bore of the handle. A compression of the actuation structure may be configured to gradually curve the optic fiber. A decompression of the actuation structure may be configured to gradually straighten the optic fiber.