Methods and apparatuses for performing an orthopedic procedure in the sacroiliac region are disclosed. In one form, an aperture is formed that at least partially extends through at least one of an ilium and a sacrum. An undercutting system is inserted into the aperture. The undercutting system includes an insertion apparatus, a probe assembly and a cutting assembly. The probe assembly is moved with respect to the insertion apparatus from a retracted position to an extended position. The probe assembly is manipulated within a joint between the ilium and the sacrum while the probe assembly is in the extended position. The cutting assembly is moved with respect to the insertion apparatus from a retracted position to an extended position. The cutting assembly is manipulated within the joint between the ilium and the sacrum while the cutting assembly is in the extended position to form a fusion region.

The invention relates to trans-epithelial frictionally abrasive tissue sampling devices for performing biopsies and methods of inducing an immune response against a pathogen, wherein epithelial cells containing the pathogen are disrupted with the frictionally abrasive tissue sampling device to introduce the pathogen into the bloodstream of a patient.

The present disclosure generally relates to the field of medical devices for treatment and diagnosis of paranasal sinus conditions and methods of using same. There is disclosed a device having a hollow shaft configured to be inserted into a paranasal sinus through a natural opening thereof. The hollow shaft is shaped/configured to reach a treatment area within the paranasal sinus.

Apparatus, including a guidewire, having a distal end dimensioned to penetrate into a nasal sinus and a balloon, which is fitted over the guidewire in proximity to the distal end. There is an inflation channel, which runs along the guidewire and is coupled to convey a pressurized fluid into the balloon so as to inflate the balloon. The apparatus also includes a first electrode, fixedly attached to a distal tip of the guidewire, and a second electrode, fixedly attached to the guidewire at a location proximal to the distal tip. There are conductive leads running along the guidewire and coupled to apply an electrical potential between the first and second electrodes.

Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that spirals around the drive shaft in a direction that is opposite to the wind direction of filars of the drive shaft, and opposite to the direction of rotation. In some embodiments, a concentric abrasive tip member is affixed to and extends distally from a distal-most end of the drive shaft.

The invention relates in general to the field of human skin treatment, more specifically to devices and methods for cleansing and subsequent care of a person's skin. The methods effectively use the combination of mechanical cleansing strengthened by vibrations transmitted to a tip, lowered pressure and treatment liquid. The advantageous aspect of the device according to the invention is that vibrations are transmitted from the vibration mechanism directly to at least a portion of the tip that is in contact with the patient's skin. This means that vibrations are targeted to the place of use, and the vibration of the whole applicator is, in comparison with methods and devices according to the state of the art, significantly lowered, as are occurrences of hand pain and other inconveniences for the person providing the therapy. The other advantageous aspect of the device is a special design of the applicator for reducing the risk of spilling serum when treatment is stopped or interrupted.

An ultrasonic osteotome bit, comprising a bit bar (1), a bit body (3), and a bit grinding portion (2) located at a front end of the ultrasonic osteotome bit. The bit grinding portion (2) is in the shape of a triangular pyramid, the bottom face of the triangular pyramid is the rear end of the bit grinding portion (2), and the tip of the triangular pyramid directly facing the bottom face is the front end of the bit grinding portion (2). One end of the bit bar (1) is connected to the rear end of the bit grinding portion (2), and the other end of the bit bar (1) is connected to the bit body (3). Two of the three lateral pyramidal faces of the triangular pyramid are respectively used as a first grinding face (21A) and a second grinding face (21B). By means of the ultrasonic osteotome bit, a normal bone-grinding operation can be completed, and since the front end thereof is small in area, the grinding speed is high. In addition, owing to the design in which the front end is small while the rear end is large, a good visual field can be provided for a surgeon. Moreover, with the unique full V-shaped structures design, the surgeon can guarantee that bone grooves at a hinge side after grinding form fully closed V-shaped grooves at any operating angle, thereby reducing the area of an incision window, facilitating the use by a surgeon and improving the surgical efficiency.

The disclosure includes a vein ablation system, comprising a catheter having an elongated body. In some embodiments, the vein ablation system comprises an ablation device at a distal portion of the elongated body. According to some embodiments, the vein ablation system comprises a control device at a proximal portion of the elongated body. The control device may comprise an input mechanism configured to simultaneously control at least two of a longitudinal translation of the ablation device through a target vessel, a rotation of the ablation device about a central longitudinal axis, and an infusion of a chemical agent into the target vessel.

According to some embodiments, a skin treatment assembly comprises a handpiece comprising a distal end, the handpiece comprising a recess or cavity configured to receive a cartridge or other fluid container, a tip configured to be positioned along the distal end of the handpiece, the tip being configured to contact a skin surface of a subject during use, and at least one rollerball configured to extend to or near the tip, wherein the rollerball is configured to be in fluid communication with an interior of a cartridge or other fluid container secured to the handpiece, wherein the at least one rollerball is configured to contact the skin surface of the subject during use and to facilitate the delivery of fluids to said skin surface as the rollerball is moved relative to said skin surface.

Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, the handle assembly encapsulates an electric motor assembly, a pump assembly, and a controller assembly.