A tissue dissector includes a handle assembly including an actuator, a head portion including a blade member defining an aperture configured to receive tissue therethrough, and a lighting assembly configured to provide lighting to the aperture of the blade member. The blade member is operatively coupled with the actuator for rotation about the aperture.

A surgical tool having an inner drive hub coupled to an inner shaft, the inner drive hub having a boss; an outer hub coupled to a hollow outer shaft, the outer drive hub having at least one hole; and a seal having a body and at least one tab; wherein the inner drive hub and the inner shaft are configured for insertion inside the outer hub and the hollow outer shaft such that the boss is positioned distally to the at least one hole; and the seal body is positioned outside of the outer hub and the at least one tab extends through the at least one hole and proximally to the boss to removably couple the inner drive hub and the inner shaft to the outer hub and the hollow outer shaft.

The present invention is directed to material removal instrument for forming cavities in interior body regions, particularly cavities in intervertebral discs and vertebrae. The instrument includes a cannula and a rotation mechanism disposed at least partially within the cannula. A cutting element extends from the rotation mechanism and impacts and dislocates tissue as the rotation mechanism is rotated within the body. Dislocated tissue with withdrawn from the body via the cannula.

Disclosed herein is a medical device. The medical device includes a blade tube section, a solenoid, and a mechanical arrangement. The blade tube section includes an outer blade tube, an inner blade tube, and a cutting window at a distal end of the blade tube section. The solenoid is offset from a central axis of the blade tube section. The mechanical arrangement is between the inner blade tube and the solenoid.

A tissue specimen removal device comprises a specimen bag; a flexible ring, the flexible ring configured to form a top opening of the specimen bag; a cannula assembly comprising: an inner tube portion and an outer tube portion. The device may further comprise a connector carrier, the connector carrier configured to retain at least one connector housing, the at least one connector housing comprising one or more connector portions and reside within an interior of the connector carrier, and wherein the connector carrier can be moved from a position within the cannula assembly to outside the cannula assembly.

A medical device for cutting bone and soft tissue includes a shaft having a rotating component with a distal working end. A cutting member is carried on the working end of the rotating component and a motor rotates the rotating component. The cutting member has a ceramic body with cutting edges, and the ceramic body is formed of a ceramic composite including alumina and zirconia, wherein the alumina has a grain size ranging between 0.5-1.5 microns and the zirconia has a grain size ranging between 0.1-1.0 micron. The alumina grain shape and zirconia grain shape are non-elongated.

The present invention relates to a urinary blockage removal system using a novel modified Foley catheter. The system is used for removing urinary bladder blockages of patients having obliterated prostatic urethra with dystrophic calcifications. In one exemplary embodiment, a 22-French modified Foley catheter is used as a sheath to maintain the patency of the lumen of the urethra. A tubular dental handpiece is operated by a dental lab motor and is advanced through the 22-French sheath to a point of the obstruction in the bladder. A dental bur can be pushed forward and drills through the calcification in the prostatic urethra and continues to the bladder neck. Using the dental bur, a blockage at the bladder neck can be removed.

An ultrasonic robotic cleaner freely movable back and forth inside a blood vessel, having an elongated shell, electrical driving mechanisms, a storage battery, and a high frequency ultrasonic vibration unit; each electrical driving mechanism is formed by propellers, an ultra-micro motor, and a gear assembly; the high frequency ultrasonic vibration unit and the storage battery are mounted inside the elongated shell; the high frequency ultrasonic vibration unit and the ultra-micro motor are electrically connected with the storage battery; the electrical driving mechanisms are disposed at two ends of the elongated shell respectively. The robotic cleaner moves inside the blood vessel and achieves blood cavitation so that blood lipids are fragmented into finer particles which are eventually burnt due to peroxidation and metabolism and transformed into energy, water and CO.sub.2.

Various examples disclosed relate to treatment of BPH with an integrated device for both tissue treatment and removal. The present disclosure includes a device including a sheath for partial insertion into a patient, a laser fiber actuatable for laser enucleation of tissue, an elongated member, and a tissue engagement tool on the elongated member.

Devices, systems, and methods for performing an ophthalmic procedure in an eye are disclosed. The devices include a hand-held portion and a distal, elongate member coupled to the hand-held portion having a lumen operatively coupled to a vacuum source. A drive mechanism operatively coupled to the elongate member is configured to oscillate the elongate member. When in use, the device is configured to aspirate ocular material from the eye through the lumen. The drive mechanism retracts the elongate member with a retraction speed profile and advances the elongate member with an extension speed profile. The retraction speed profile is different from the extension speed profile.