An apparatus for harvesting a vessel from a body, includes: a cannula having a dissector for advancing along the vessel to create a tunnel, the dissector having a transparent portion; and an energy tool moveably coupled to the cannula, wherein the energy tool is configured to separate a pediculated vessel having at least a segment of the vessel and a pedicle around the segment of the vessel from surrounding tissue, and wherein at least a part of the energy tool is visible through the transparent portion of the dissector during use of the energy tool.

Disclosed is an ultrasonic osteotome bit, which comprises a bit bar (1), a bit tip (2), and a liquid injection portion (3), one end of the liquid injection portion (3) being connected to the bit bar (1) and the other end of the liquid injection portion (3) being connected to the bit tip (2), wherein the ultrasonic osteotome bit further comprises a hollow liquid injection channel (10), the hollow liquid injection channel (10) penetrates from a tail end of the bit bar (1) to the liquid injection portion (3) along an axial direction of the bit bar (1), the liquid injection portion (3) is provided with a transverse liquid guide channel (20) penetrating transversely, i.e. substantially perpendicular to an axis of the bit bar (1), the transverse liquid guide channel (20) is in communication with the hollow liquid injection channel (10), and the transverse liquid guide channel (20) forms openings in lateral faces of the liquid injection portion (3). The ultrasonic osteotome bit allows a cooling liquid to sufficiently flow to the bit without being excited or scattered by ultrasonic vibration, thereby ensuring that the bit tip (2) is sufficiently cooled during use.

A device for introduction into a body vessel includes a shaft, a balloon positioned at the distal end of the shaft, a guidewire disposed longitudinally within the shaft to receive a guidewire during use, a balloon disposed at the distal end of the shaft, and longitudinal scoring wires to score a vascular lesion attached to the distal end of the shaft. The scoring wires are disposed over the balloon and disposed within the shaft. The proximal ends are welded or otherwise affixed to a spring mounted in the handle. The balloon expands when fluid is delivered to the balloon through the inflation lumen. This expansion pushes the scoring wires against the vascular lesion. The scoring wires attach to a source of vibrations. The scoring wires are made of a helical coil.

A vibration type removal apparatus 2 includes a housing 10, a holding member 11, a tool 12, a control device 20, a vibration device 21, and a cooling pump 22. The control device 20 drives the cooling pump 22, and cooling water supplied from the cooling pump 22 passes through a flow path 25 in the housing 10, and is sprayed toward the tool 12 from a distal end of the flow path 25. In this state, the tool 12 is inserted between a hard tissue HT and a soft tissue ST, the vibration device 21 is operated, and the tool 12 is vibrated. Due to the vibration of the tool 12, a surface of the hard tissue HT which adheres to the soft tissue ST is cut, and the hard tissue HT is peeled and removed from the soft tissue ST.

A system for controlling a robotic arm is disclosed. The system includes a robotic arm including a surgical tool, a tool driver, and at least two sensors disposed on the robotic arm to redundantly monitor a status of the robotic arm and to verify an operational parameter of the surgical robotic tool. A central control circuit is configured to measure a first physical property of the robotic arm based on readings from the first sensor, measure a second physical property of the robotic arm based on readings from the second sensor, and determine a status of the robotic arm based on the first and second measurements of the first and second physical properties of the robotic arm.

A surgical tool clamping feedback device includes a surgical tool, a force feedback sensor and a feedback processing unit. The surgical tool includes a machine body, a harmonic scalpel, a clamp and an operating handle. The machine body is configured to install the harmonic tool head. The harmonic scalpel is configured to install the clamp and output an ultrasonic wave to the clamp. The operating handle is movably disposed on the machine body for a user to hold and operate the clamp. The force feedback sensor is linked with the operating handle to detect a gripping feedback force from the operating handle. The feedback processing unit is configured to receive the grip feedback force of the operating handle and correspondingly output an indication signal to the user.

Treatment device having vibration source, transmission rod, and detachable tip is equipped with ultrasonic transducers. Ultrasonic vibrations transmitted along the transmission rod to the detachable tip cause a treatment end of the tip, such as a blade, to vibrate at ultrasonic frequencies to cut and/or seal tissues. The detachable tip is connected at a location other than the vibration node or the antinode position. The detachable tip endures increased stresses associated with this location by decreasing the mass and sectional area relative to the increasing stress levels. The detachable tip connects to the transmission rod using a transmission surface and a biasing member, such as a leaf spring, that engages a detent located in the housing at the distal end of the transmission rod. Biased contact between the transmission surface and contact surface transmits both ultrasonic vibrations and high-frequency currents to the treatment edge of the detachable tip.

An ultrasonic tip and methods of operating the same. The ultrasonic tip comprises a shaft including a base and a flexible body. The body comprises a first portion and a second portion. The body is coupled to the base at the first portion and extends from the first portion to the second portion along a longitudinal axis. The second portion includes a cutting portion comprising a neck, and a head extending radially from the longitudinal axis. The head is coupled to the neck. A circular aperture is disposed between the head and the neck to define an inner circumferential surface. The head and the neck form an outer circumferential surface comprising a plurality of cutting teeth, the outer circumferential surface having a first thickness at the head that is greater than a second thickness at the neck.

Disclosed are ultrasonic and electrosurgical devices. The disclosed embodiments include a surgical instrument comprising a waveguide, and end effector and an electrical switch. The waveguide may comprise a proximal end and a distal end, wherein the proximal end is configured to couple to an ultrasonic transducer and one output of a radio frequency (RF) generator. The end effector may comprise an ultrasonic blade and a clamp arm coupled. The ultrasonic blade may be mechanically coupled to the distal end of the waveguide and electrically coupled to the waveguide. The clamp arm may comprise a movable jaw member electrically coupled to another output of the RF generator such that an electrical current can pass through the movable jaw member and the ultrasonic blade through tissue located between the movable jaw member and the ultrasonic blade. The electrical switch may be configured to electrically couple to the RF generator and the movable jaw member, wherein the switch is operable to cause the surgical instrument to deliver electrical current from the RF generator to the movable jaw member for a first period, and to cause the surgical instrument to deliver ultrasonic energy to the ultrasonic blade for a second period.

A method of manufacturing a surgical instrument that includes an energized feature operable to apply ultrasonic energy or RF energy to tissue. The method includes forming at least one of a microscopic surface pattern or a nanoscopic surface roughness into a base surface of the energized feature to produce at least one recessed portion. The method also includes applying a hydrophobic coating that includes at least one of silicone, titanium nitride, chromium nitride, or titanium aluminum nitride to at least the recessed portion of the energized feature after forming at least one of the microscopic surface pattern or the nanoscopic surface roughness.