The present disclosure relates to trocar-cannula insertion tools for ophthalmic procedures. In certain embodiments, a cap for a trocar-cannula insertion tool includes a body having a proximal end and a distal end opposite the proximal end. A marking element extends in a distal direction from the distal end of the body and includes at least one marking tip for forming one or more indentations on a patient's eye during an ophthalmic procedure. A manipulation element extends from the body in a direction different from the marking element and includes at least one manipulation tip for gripping a tissue of the patient's eye during the ophthalmic procedure. In certain embodiments, the cap further includes at least one window for exposing a photoluminescent cannula of the trocar-cannula insertion tool to light, enabling the cannula to absorb photons prior to insertion thereof.

This disclosure relates to a medical device. The medical device comprises a first and a second component. The first component comprises a first portion having a first handle part and a second portion having a grip. The second component is linked to the first component and is configured to be in communication with the first component to be actuated from an open to a closed position. The second component defines a third portion and a fourth portion, the third portion defining a second handle part and the fourth portion defining a second grip that is configured to grip a tissue in combination with the first grip portion of the first component. In certain embodiments, the first component or second component comprises a substantially straight member attached distally from the grip.

Certain embodiments provide a cannula system with a retention mechanism comprising a cannula, a hub coupled to the cannula, wherein a distal end of the cannula is configured to be inserted into a body part up to the hub, and a retention mechanism configured to create resistance for retaining the cannula inside the body part in response to force exerted on the cannula for pulling the cannula out of the body part. The retention mechanism may include retention elements coupled to a bottom surface of the hub, and by rotating the hub in a first direction, the one or more retention elements that are parallel to a surface of the body part are configured to penetrate the body part. In other embodiments, the retention mechanism may include halfpipe elements that pivot on fulcrum points to hold or release the hub and cannula from the body part.

A soft-bodied apparatus and a method for opening an eyelid are provided. The apparatus includes: a head support module, a real-time eyelid positioning module, a robot end-effector real-time positioning module, and an automatic eyelid opening operation module. The automatic eyelid opening operation module includes a robot body and a robot control system. The robot body is provided with a multi-axis rigid body mechanical arm and a soft-bodied end-effector. The robot control system takes the real-time poses of the upper and lower eyelids of the user as a motion target, and takes the real-time shape and the pose of the soft-bodied end-effector as feedback information to control motion of the robot body to automatically open the eyelid.

A device includes a body configured to be placed on an eye and multiple tine assemblies configured to secure the body to and release the body from the eye. The body includes multiple corners and multiple sides. Each corner includes a passage through the corner. Each side connects an adjacent pair of corners. Each tine assembly includes a twist pick configured to be inserted through one of the passages. Bottom surfaces of the sides are raised relative to bottom surfaces of the corners such that the bottom surfaces of the sides are spaced apart from the eye when the bottom surfaces of the corners are resting on the eye. Each of at least one side includes multiple openings configured to allow manipulation of a position of the body and a groove configured to receive a projection from a surgical tool in order to position the surgical tool on the eye.

This disclosure relates to a medical device. The medical device comprises a first and a second component. The first component comprises a first portion having a first handle part and a second portion having a grip. The second component is linked to the first component and is configured to be in communication with the first component to be actuated from an open to a closed position. The second component defines a third portion and a fourth portion, the third portion defining a second handle part and the fourth portion defining a second grip that is configured to grip a tissue in combination with the first grip portion of the first component. In certain embodiments, the first component or second component comprises a substantially straight member attached distally from the grip.

A scleral depressor assembly includes a scleral depressor, an optical fiber, and a reflector. The scleral depressor includes an elongate body and a head disposed at a distal end of the elongate body. The scleral depressor defines an internal lumen extending through the elongate body and terminating within the head. The optical fiber is disposed within the lumen and includes a distal end positioned within the head. The optical fiber distal end includes a beveled end face that is obliquely oriented with respect to a central axis of the internal lumen. The reflector is disposed at the distal end of the optical fiber and is configured to reflect light emitted from the optical fiber distal end along a light path out of the scleral depressor head in a direction that is approximately orthogonal to the central axis of the internal lumen.

A method of implanting a continuous iris-expanding ring in an eye involves ejecting the continuous iris-expanding ring from a distal end of a cannula toward an iris of the eye, securing a distal portion of the continuous iris-expanding ring device ring to the iris of the eye, and securing a proximal portion of the continuous iris-expanding ring to the iris of the eye. The continuous iris-expanding ring is in a collapsed configuration in the cannula prior to being ejected and in an expanded configuration when the proximal portion and the distal portion of the continuous iris-expanding ring are secured to the iris of the eye and extend across the pupil.

An eyelid retractor and irrigation tool includes a handle portion defining a longitudinal first axis configured to be grasped by a user and a hook portion connected to the handle portion for retracting an eyelid. The hook portion of the tool includes: inwardly and outwardly facing walls, which are curved about a second axis, which is distinct from the first axis; an edge wall extending between the inwardly and outwardly facing walls; and an interior cavity defined by the walls. The tool further comprises at least one opening extending through the inwardly facing wall or the outwardly facing wall fluidly connected to the interior cavity and positioned such that fluid in the interior cavity passes through the at least one opening to irrigate portions of an eye including the eyelid.

A pressure sensing retractor device and method is provided for measuring orbital compartment pressure of an eye. The device uses nested claw-like retractors where the inner claw retractor is capable of pulling an eyelid of the eye of a patient, and the outer claw retractor is capable of sensing the orbital compartment pressure of the eye. The pressure sensing retractor outputs the force sensor signal as a continuous signal of the orbital compartment pressure of the eye. Embodiments of the invention can be applied towards analysis of orbital compartment syndrome, retrobulbar hemorrhage (RBH), and canthotomy/cantholysis. Unlike applanation tonometry, retractor placement with the retractor provided herein requires no specialized training. Ease of use can help facilitate appropriate clinical decision, especially in environments without immediate access to ophthalmic consultation.