Disclosed herein are apparatuses, systems, kits, and methods for treating skin, such as skin tightening or for treating diseases, disorders, and conditions that would benefit from tissue area or volume reduction, skin restoration, skin tightening, skin lifting, and/or skin repositioning and/or for generally improving skin function or appearance (e.g., the removal of unwanted skin features or irregularities such as sebaceous glands, sweat glands, hair follicles, necrosis, and fibrosis). Such apparatuses, systems, kits, and methods comprise an apparatus having a handheld main body and a detachably attachable tip comprising one or more needles.

An atherectomy system includes a drive assembly and an advancer assembly. The drive assembly, which may be reusable, includes a drive motor having an output shaft and a first coupler segment that is secured relative to the output shaft. A controller may be adapted to regulate operation of the drive motor. The advancer assembly, which may be single use, includes a flexible drive cable that is adapted to be releasably securable to the first coupler segment. The advancer assembly includes gearing that is secured within the advancer assembly and is operably coupled with the flexible drive cable. A burr catheter is coupled with and extends distally of the gearing. The advancer assembly is adapted to enable relative translation of the burr catheter in order to advance and withdraw an atherectomy burr rotatably secured to a distal end of the burr catheter.

A disposable bidirectional ratchet, which has a tubular hollow handle with an interior surface having teeth thereon; a toggle mounted movably within the handle; a knob connected to an end of the toggle moves the toggle inside the handle; a plurality of pins on another end of the toggle; a plurality of actuators each comprising: fingers, levers, toes and a head, and having a post guide formed therein; a plurality of posts affixed to a clutch; and, wherein the actuators are movable affixed to the clutch via the posts, and the pin position selects the direction of engagement via adjustment of the actuator position via applying force to the levers, which moves the lateral edges of the actuator towards or away from the teeth.

An ultrasonic device may include an electromechanical ultrasonic system defined by a predetermined resonant frequency, in which the system may include an ultrasonic transducer coupled to an ultrasonic blade. A method of estimating a state of an end effector of the ultrasonic device may include applying a drive signal defined by a magnitude and a frequency to the ultrasonic transducer, sweeping the frequency of the drive signal from below a first resonance to above the first resonance of the electromagnetic ultrasonic system, measuring and recording, impedance/admittance circle variables R.sub.e, G.sub.e, X.sub.e, and B.sub.e, comparing, the measured impedance/admittance circle variables R.sub.e, G.sub.e, X.sub.e, and B.sub.e to reference impedance/admittance circle variables R.sub.ref, G.sub.ref, X.sub.ref, and B.sub.ref, and determining, a state or condition of the end effector based on the result of the comparison. An electromechanical ultrasonic system may include a control circuit to effect the method.

Apparatus and methods are provided for performing a medical procedure, such as a laparoscopic appendectomy using a stapler apparatus including a reusable handle portion including a shaft include proximal and distal ends, a disposable end effector attached to the distal end of the shaft of the reusable handle carrying one or more staples. For example, the end effector may include first and second jaws movable relative to one another between open and closed positions, the first jaw carrying a cartridge which includes the one or more staples. A Doppler sensor, a cutting element, and, optionally, a thermal element are also provided on the end effector. The end effector is introduced into a patient's body, tissue is positioned/locked between the jaws, and a plurality of staples are deployed into the tissue. The Doppler sensor is used to confirm that blood flow has discontinued in the stapled tissue, and the cutting element is actuated to sever the stapled tissue.

A disposable guide device for spinal surgery comprises two tubular guide bodies extending along respective main axes between a proximal end and a distal end to guide a surgical operation on a vertebra of a patient, a plurality of support feet projecting laterally relative to each guide body, near said proximal end, each defining a contact area configured to abut on a side of the spinous process or on a lamina or facet or transverse process of the vertebra of the patient, in a mating configuration, at least one junction element extending between the guide bodies, starting from the respective distal ends, in order to space them from each other, wherein the guide bodies are oriented so that the proximal ends are more distant from each other with respect to the distal ends.

Disclosed herein is a medical device. The medical device includes two coaxially aligned solenoids and a cannulated armature configured to be received within the two coaxially aligned solenoids.

An end effector assembly of a tissue-resecting device includes an outer shaft defining a window, a drive wire extending through the outer shaft, and a distal cutting tip disposed within the outer shaft. The drive wire includes a cylindrical body and a distal end portion defining a semi-cylindrical configuration including a semi-cylindrical bottom surface and a planar top surface having a semi-cylindrical cut-out defined therein. The distal cutting tip at least partially overlaps the window and has a semi-cylindrical lumen defined by a semi-cylindrical bottom surface and an open top. The distal end portion of the drive wire is at least partially received and within the semi-cylindrical lumen with the semi-cylindrical surfaces substantially mating. The drive wire is configured to drive rotation or oscillation of the distal cutting tip relative to the outer shaft.

A surgical instrument includes a housing, an elongated shaft assembly extending from the housing, and an end effector extending from the elongated shaft assembly. An inner shaft of the assembly defines proximal and distal portions and a longitudinal lumen. The proximal portion inhibits passage of gas while the distal portion permits passage of gas. An intermediate collar is disposed about the inner shaft between the proximal and distal portions. An outer sleeve of the assembly is disposed about the inner shaft and the intermediate collar to define a proximal area therebetween proximally of the intermediate collar and a distal annular area therebetween distally of the intermediate collar. The outer sleeve includes a proximal portion surrounding the proximal annular area and a distal portion surrounding the distal annular area. The proximal portion permits passage of gas while the distal portion inhibits passage of gas.

A surgical stabilizer arm includes a reusable base portion and a disposable arm portion. The articulating links that enable the arm to be positioned into arbitrary trajectories are included the disposable portion, thus eliminating the need to clean between the links after a surgical procedure. The disposable portion also includes a tool attachment mechanism and a cable. The reusable portion includes a retractor clamping mechanism, a top plate, a T-shaped base post, a main body, a nosepiece, a threaded drawbar, a thrust bearing assembly, and a threaded handle that can extend or retract the drawbar when rotated. The threaded drawbar may include a slot into which an end of the cable can be inserted, which allows tension to be applied to the cable when the handle is rotated to pull the drawbar into the body of the reusable portion and lock the articulating links in place.