A surgical stapling device includes a reload assembly that includes a locking member to retain a knife carrier of the reload assembly in a retracted position after the stapling device is fired. The locking member may be supported on an inner housing portion of the shell housing or on a staple pusher assembly of the reload assembly.

A surgical instrument includes: an end effector; a power source; a motor coupled to the power source, the motor configured to actuate the end effector; and a controller operatively coupled to the motor and configured to control the motor based on a current draw of the motor and an angular velocity of the motor.

A force sensor includes a substrate, a plurality of sensing elements, and a plate. The substrate includes a central aperture extending along a longitudinal axis of the substrate, and has a proximal surface, a distal surface, a first side surface, a second side surface, a top surface, and a bottom surface. A recess is defined in at least one of the distal surface, the first side surface, the second side surface, the top surface, or the bottom surface of the substrate. The plurality of sensing elements are disposed within the recess, and the plate is disposed over the recess and mounted to the substrate to hermetically seal the plurality of sensing elements within the substrate.

An articulating working channel system for use with a plurality of flexible tools which are adapted to be interleaved in a single surgical procedure, comprising: a working channel subassembly including a hollow flexible shaft; and a surgical tool subassembly including the flexible tool, wherein the flexible tool includes a flexible tube which is adapted to be inserted into the flexible shaft and wherein the flexible shaft is adapted to be articulated and the flexible tube is adapted to be passively articulated therewith.

Surgical instruments are disclosed comprising a firing assembly including a fuse having a plurality of operating states.

A surgical instrument comprising a firing drive and a bailout retraction system is disclosed.

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.

An adapter assembly for operably connecting an end effector to a handle assembly includes a first drive assembly. The first drive assembly includes a first connector drive shaft configured to be rotated at a first speed, a first proximal worm gear in operable engagement with the first connector drive shaft, a first distal worm gear in operable engagement with the first proximal worm gear, and a first drive connector in operable engagement with the first distal worm gear. The first proximal worm gear and the first distal worm gear are configured to rotate the first drive connector at a second speed which is less than the first speed. The adapter assembly may include a second drive assembly which is substantially similar to the first drive assembly.

A polyaxial pedicle screw includes a housing, a bone screw member, and an anvil. The bone screw member includes a head and a threaded shaft extending from the head. The head is selectively securable within the housing. The anvil is positionable within the housing adjacent to the head of the bone screw member when the anvil and the head of the bone screw member are positioned within the housing. The anvil may define one or more grooves in an outer surface of the anvil. The groove defines a flap that is flexibly attached to the anvil to enable the anvil to flex an amount sufficient to maintain the head of the bone screw in constant contact with the anvil when the bone screw member is moved relative to the anvil. A rod reducer may be secured to the polyaxial pedicle screw to secure a spinal rod within the housing.