An ultrasonic osteotome bit, comprising a bit body (1), a bit bar (2) and a bit tip (3). One end of the bit bar (2) is connected to the bit tip (3), and the other end of the bit bar (2) is connected to the bit body (1). The bit tip (3) is of a prism or substantially prism structure with the cross section of a polygonal structure, and the bit tip (2) has at least two cutting faces of different cutting widths. The bit is provided with a liquid flow hole (41), and the bit tip (3) is provided with a knurled structure that extends from a foremost end face of the bit tip (3) towards the bit bar (2) to form a file-type bit. The ultrasonic osteotome bit not only meets the requirement of a surgeon for the accuracy of bone cutting width, but also saves the time required to replace bits of different widths, thereby improving the surgical efficiency.

The present disclosure provides a lead locking device that is configured to be inserted into a lumen of a lead of a cardiac implantable electronic device (CIED), such as a lead of a pacemaker, and being locked at a selected position along the lumen for being retained there for allowing extraction of the lead and/or applying vibrations to the selected position. The lead locking device includes a deformable element that may deform by application of force thereon and the deformation thereof results in radial expansion thereof such that if it is disposed within a lumen of a lead, it presses against the walls of the lumen and applies force that retains the lead locking device in position. The deformable element may be configured for reversible deformation, namely that upon removal of the force that is applied thereon, it is reversed to a contracted, non-engaging state where its radial dimension is lower than the dimension of the lumen. The deformable element may be in the form of a metallic braid, a flexible rod or a wire, an inflatable member, a spring, a structural weakening portion in a body member, such as cuts or holes, allowing a portion of the body to expand, etc.

An ultrasonic vibration transmittable probe includes a probe body configured to transmit ultrasonic vibration generated by an ultrasonic transducer. A treatment section is provided on a distal end side of the probe body along its longitudinal axis and is configured to cut a treatment object with the ultrasonic vibration. The treatment section includes first to third cutting surfaces disposed at progressively proximal positions. A portion of the first cutting surface has a dimension along a first orthogonal direction orthogonal to the longitudinal axis that is smaller than a dimension of the second cutting surface along the first orthogonal direction.

An apparatus includes a body assembly, an acoustic waveguide, an ultrasonic blade, and a liquid dispensing feature. The ultrasonic blade is positioned distally relative to the body assembly. The ultrasonic blade is in acoustic communication with the acoustic waveguide. The liquid dispensing feature is positioned distally relative to the body assembly. The liquid dispensing feature is positioned adjacent to the ultrasonic blade. The liquid dispensing feature is configured to deliver a flow of cooling liquid to the ultrasonic blade.

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.

An ultrasonic cutting tool is designed for use in an ultrasonic instrument. The tool is a blade having a flat section manufactured from at least a first blade layer and second blade layer. The first and second blade layer each being a flat metal plate arranged in parallel to one another and bonded to one another.

An apparatus includes a shaft assembly, an ultrasonic blade, and a clamp assembly. The shaft assembly includes an acoustic waveguide operable to transmit ultrasonic vibrations to the blade. The clamp assembly includes a clamp arm pivotable toward and away from the blade about a pivot axis, to clamp tissue between the clamp arm and the blade. A rotation feature may provide rotation of the blade relative to the clamp arm about the longitudinal axis of the waveguide. Alternatively, the rotation feature may provide rotation of the clamp arm relative to the blade about the longitudinal axis. The rotation feature may be driven based on pivotal positioning of the clamp arm relative to the blade about the pivot axis. The rotation feature may selectively lock and unlock the angular position of either the blade or the clamp arm about the longitudinal axis at any of a number of predetermined angular positions.

The invention relates to a flexible application aid for the treatment of wounds. The application aid can be used in particular for the debridement and/or cleansing of wounds, including the skin surrounding the wound. The application aid according to the invention including a flexible or elastically deformable application wand, facilitates debridement of superficial to deep wounds without the risk of injury to the wound.

A method of balancing an ultrasonic instrument having an ultrasonically actuated blade is disclosed. The blade includes a body portion and a step portion extending from the body portion. The body portion comprises a first side, a second side, and a width defined between the first and second sides. The step portion includes a first surface, a second surface, and a cutting edge situated intermediate the first and second surfaces. The second surface extends between a first plane including the cutting edge and a second plane which is parallel to the first plane. The first and second surfaces are not parallel and are oriented such that there is an angle defined therebetween. The method comprises the steps of configuring at least a portion of the blade such that a relationship is substantially equal to zero.

A probe unit includes, a probe configured to treat a bone by ultrasonic vibration, a hollow sheath which surrounds the probe and which has a first portion at a small distance from a central axis, and a second portion at a greater distance from the central axis than the first portion, and a knob configured to rotate the sheath relative to the probe between a first position for insertion between the bone and a living tissue facing the bone so that the first portion is located between the bone and the living tissue and a second position for insertion between the bone and the living tissue so that the second portion is located between the bone and the living tissue.