Adjustable-length surgical access devices are disclosed herein, which can advantageously allow an overall length of the access device to be quickly and easily changed by the user. The access devices herein can reduce or eliminate the need to maintain an inventory of many different length access devices. In some embodiments, the length of the access device can be adjusted while the access device is inserted into the patient. This can reduce or eliminate the need to swap in and out several different access devices before arriving at an optimal length access device. This can also reduce or eliminate the need to change the access device that is inserted into a patient as the depth at which a surgical step is performed changes over the course of a procedure. Rather, the length of the access device can be adjusted in situ and on-the-fly as needed or desired to accommodate different surgical depths.

An ultrasonic surgical instrument and method of limiting an ultrasonic blade temperature includes adjusting at least one power parameter of the ultrasonic energy in response to reaching a predetermined frequency parameter change threshold in the ultrasonic blade limiting the temperature of the ultrasonic blade to an upper temperature limit. The ultrasonic surgical instrument further includes an end effector having an ultrasonic blade, a jaw, and a controller. The jaw is movably positioned relative to the ultrasonic blade and configured to move between an open position and a closed position. The controller operatively connects to the ultrasonic blade and is configured to measure an ultrasonic frequency of the ultrasonic blade. The controller has a memory including a plurality of predetermined data correlations that correlate changes in measured ultrasonic frequency of the ultrasonic blade to a blade temperature of the ultrasonic blade.

Surgical access port stabilization systems and methods are described herein. Such systems and methods can be employed to provide ipsilateral stabilization of a surgical access port, e.g., during spinal surgeries. In one embodiment, a surgical system can include an access port configured for percutaneous insertion into a patient to define a channel to a surgical site and an anchor configured for insertion into the patient's bone. Further, the access port can be coupled to the anchor such that a longitudinal axis of the access port and a longitudinal axis of the anchor are non-coaxial. With such a system, a surgeon or other user can access a surgical site through the access port without the need for external or other stabilization of the access port, but can instead position the access port relative to an anchor already placed in the patient's body.

Surgical instruments and methods are disclosed including a tissue removal tool for treatment of endometrial tissue on a background tissue of a patient. The tissue removal tool can optionally comprise a graspable portion, a shaft and an end effector. The shaft can be coupled to the graspable portion. The shaft can have a proximal portion and a distal portion and can be configured to access an anatomic location of the endometrial tissue. The end effector can be coupled to the distal portion of the shaft. The end effector can be configured to lift the endometrial tissue relative to the background tissue to a lifted position. The end effector can be configured to cut the endometrial tissue from the background tissue with the endometrial tissue in the lifted position.

A surgical instrument includes an end effector, a shaft assembly proximally extending from the end effector, and at least one translatable rack gear assembly coupled with the shaft assembly. The shaft assembly includes at least one elongate member connected to a select one or both of the end effector and the shaft assembly. The at least one translatable rack gear assembly includes a rack gear, an anchor longitudinally adjustable relative to the rack gear, and an insert received within the anchor. The anchor is coupled with the at least one elongate member such that adjustment of the anchor relative to the rack gear longitudinally moves the insert and the at least one elongate member for adjusting tension of the at least one elongate member.

Medical cutting devices with static components having temperature sensors and related methods are disclosed. According to an aspect, a cutting device includes a blade working body being configured for operable connection to a source of movement. The cutting device also includes a static component being configured for operable connection to the source of movement. Further, the cutting device includes one or more temperature sensors attached to the static components and configure to detect a temperature level of a work space near the blade working body.

Medical cutting devices with coolant modules and channels and associated methods are disclosed. According to an aspect, a cutting device includes a working blade body having a first end and a second end. The first end is configured to operatively connect to a source of movement. The second end defines a blade edge. The cutting device also includes a channel defined within the working blade body for carrying coolant for transferring heat from the second end of the working blade body.

Medical cutting devices having a working blade body that defines an opening for emitting coolant therefrom and related methods are disclosed. According to an aspect, a cutting device a static casing. The cutting device also includes a blade working body attached to the static casing and including a first end and a second end. The first end is configured to operatively connect to a source of movement. The second end includes a cutting component. The blade working body defines an interior channel that extends between the first end and the second end, and defines one or more openings at the second end for emitting coolant, such as a gas, through the interior channel.

Medical cutting device having a working blade body with static components and related methods of use are disclosed. According to an aspect, a cutting device includes a working blade body having a top surface and a bottom surface. The working blade body defines a plurality of apertures extending between the top surface and the bottom surface. Further, the cutting device includes a plurality of static components each having a top portion and a bottom portion. Each static component is associated with one of the apertures and has a middle portion that is between the top portion and the bottom portion and positioned within the associated aperture. The top portion and the bottom portion extend past the top surface and the bottom surface, respectively, of the working blade body.

An ultrasonic surgical instrument comprises a cylindrical shaft and a blade at a distal or free end of the shaft, the blade being unitary and continuous with the shaft, without an intervening joint. The shaft has a longitudinal axis and the blade includes a flat or planar blade body with a proximal end eccentrically disposed relative to the shaft axis. Thus, the blade body or at least a proximal end portion thereof is disposed eccentrically relative to the shaft. The blade in its entirely may be inclined relative to the shaft axis or extend parallel thereto.