A tissue treatment catheter and system include a catheter shaft sized and shaped for delivery through a radial artery to a blood vessel of a patient. The catheter shaft has several lumens, including a guidewire lumen, a cable lumen, and one or more fluid lumens. A stiffening web extends from the guidewire lumen and is thicker than an outer wall of the catheter shaft. The tissue treatment catheter and system include an ultrasound transducer, a balloon surrounding the ultrasound transducer, and a single electrical cable electrically connected to the ultrasound transducer to deliver sufficient electrical energy during sonication to the transducer such that the transducer thermally induces modulation of neural fibers surrounding the blood vessel sufficient to improve a measurable physiological parameter corresponding to a diagnosed condition of the patient. Other embodiments are described and claimed.

A work tip for an ultrasonic surgical hand piece has a solid knife with a sharp distal edge. A first fluid tube located on one side of the knife and has open ends to receive or discharge fluid. A second fluid tube is located on the other side of the knife and is slidably connected with the knife. The second fluid tube has an opening at a distal end and a smaller side hole. During phacoemulsification the knife is vibrated independent of the fluid tubes. The second fluid tube has irrigation fluid passing from the opening and side hole, and the first fluid tube is positioned so as to receive fluid from the second tube. During I/A cleanup the second fluid tube receives aspiration fluid only through the side hole because the knife is positioned to block the aspiration fluid from entering through the opening.

An ultrasonically assisted clamping system and method for extending a spinal support rod system to additional vertebrae of the spine. A clamp assembly and a receptacle assembly securely couple an additional extension rod to an existing spinal support rod. Various embodiments further include an ultrasonic assist for cutting through tissue that may be present in the vicinity of the existing spinal support rods. In some embodiments, the clamp assembly is configured to augment the ultrasonic aspect of the system. The system cuts through and locally removes tissue from and proximate to the spinal support rods where the clamp assembly is to be mounted, without the need for a separate surgical procedure for removing the tissue prior to implantation, thereby providing a secure clamping of the newly implanted extension rod to the existing base spinal support rod.

An ultrasound probe includes a treatment portion that is formed at a distal end of a probe body that can transmit input vibration energy. The treatment portion can vibrate with a predetermined amplitude to cut a treatment target object. The treatment portion includes: a first striking face that faces in a distal direction along an axial direction of the ultrasound probe; a second striking face that faces in the distal direction at a position on a proximal end side of the first striking face in the axial direction; and a first side surface that connects the first striking face and the second striking face in the axial direction and that has a predetermined length in the axial direction. The first side surface has a length that is equal to or less than an amplitude of vibration of the treatment portion caused by the input vibration energy.

The present disclosure is directed to end effectors. An end effector includes an outer shaft extending along a longitudinal axis and an inner shaft partially located within the outer shaft. The end effector may include an ultrasonic blade. The inner shaft may include biased and unbiased portions. The inner shaft and outer shaft may be translatable relative to one another. At one translatable position, the biased portion of the inner shaft may be located within the outer shaft and the unbiased portion may be substantially straight along the longitudinal axis. At another translatable position, the biased portion of the inner shaft may be located outside of and distally positioned from the outer shaft such that the biased portion of the inner shaft is bent away from the longitudinal axis.

An ultrasonic instrument includes a body, a shaft assembly, and an end effector. The shaft assembly extends distally from the body. The shaft assembly includes an acoustic waveguide configured to acoustically couple with an ultrasonic transducer. The end effector includes an ultrasonic blade, a clamp arm and a clamp pad. The ultrasonic blade is in acoustic communication with the waveguide. The clamp arm is pivotally coupled with the shaft assembly. The clamp pad is configured to removably couple with the clamp arm while the clamp arm is pivotally coupled to the shaft assembly.

A bone cutting surgical instrument includes features to mitigate heat generation during use. Excessive heat can be detrimental to bone health as well as to the instrument itself. In one example a liquid dispensing feature provides a flow of cooling liquid to an ultrasonic blade via a lumen in a waveguide of the instrument. In another example, the blade has a serrated edge with a plurality of teeth arranged in a pattern to provide dimension and space during cutting actions. In another example, the blade has an oversize distal portion that creates an oversize slot when cutting to avoid excessive contact between the cut bone and proximal portions of the blade. In another example the blade includes an irrigation slot and also a micro slot in a distal end of the blade that connects with the irrigation slot.

A minimally invasive ultrasonic osteotome head and a minimally invasive ultrasonic powered system for bone; the minimally invasive ultrasonic osteotome head comprises an osteotome rod (11, 21, 31, 41, 51, 61) and a head end (12, 22, 32, 42, 52, 62), the head end (12, 22, 32, 42, 52, 62) being located at a front end of the osteotome rod(11, 21, 31, 41, 51, 61), and the head end (12, 22, 32, 42, 52, 62) being bent laterally at a certain angle, wherein knurled teeth or skewed teeth are provided on the bent portion. By means of bending the head end (12, 22, 32, 42, 52, 62), bone tissue around the transforaminal endoscope may be removed. Therefore, a surgeon may, as much as possible, have more operation space under the limited endoscope channel, thereby increasing bone removal efficiency.

A jaw member for use with a surgical instrument includes a support base, a jaw liner, and a jaw overmold. The support base has a proximal portion configured to be pivotably coupled to a surgical instrument, and a distal portion. The support base defines a channel that extends longitudinally between the proximal and distal portions and an aperture disposed in communication with the channel. The jaw liner includes an elongate body configured for receipt in the channel of the support base, and a projection extending from the elongate body and configured for receipt in the aperture of the support base. The jaw overmold overlaps at least a portion of the support base and the jaw liner to fix the jaw liner to the support base.

The invention resides in the field of medical technology. It relates in particular to a sonotrode suitable for use with an ultrasonic surgical instrument. The invention refers further to an ultrasonic surgical instrument for cutting or punching bones, including such a sonotrode as well as a method for manufacturing the sonotrode of the invention.