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.

A technique for harvesting bone graft material for spinal and other fusion surgeries. In the disclosed embodiment, a bone cutting blade is placed in a disc space between two vertebrae to be fused. The blade cuts into the vertebrae and forms solid segments of autologous bone inside each vertebra. Each bone segment is urged out of its associated vertebra until a first portion of the segment enters the opposite vertebra, an intermediate portion spans the disc space, and a second portion remains in the associated vertebra. Each segment thus forms a strut graft to promote a healthy and permanent fusion. In another embodiment, a wire is placed in the disc space and rotated to cut grooves in the vertebrae, causing a slurry of morselized cortical and cancellous bone to ooze into a cage that is placed in the disc space. The slurry heals to fuse the vertebrae solidly and permanently.

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.

The invention relates to a cardiac lead extraction system, comprising: a handle; an elongated body in communication with said handle; a bendable flexible portion in communication with said elongated body, said bendable flexible portion comprising a first lumen sized and shaped to fit over a cardiac lead; said bendable flexible portion being more flexible than said elongated body; an operational distal end in communication with said bendable flexible portion; where said bendable portion is configured to bend to a bending radius of less than 4 cm while keeping said first lumen open; and where said operational distal end comprises at least one lead extraction assistive tool, said operational distal end comprising a second lumen sized and shaped to fit over a cardiac lead, said second lumen being in communication with said first lumen, and said first lumen comprises an inner diameter of from about 1 mm to about 5 mm.

An ultrasonic surgical instrument comprises a cylindrical shaft and a blade at a distal or free end of the shaft, the blade being unitary and continuous with the shaft, without an intervening joint. The shaft has a longitudinal axis and the blade includes a flat or planar blade body with a proximal end eccentrically disposed relative to the shaft axis. Thus, the blade body or at least a proximal end portion thereof is disposed eccentrically relative to the shaft. The blade in its entirely may be inclined relative to the shaft axis or extend parallel thereto.

A tool (1, 31) for cutting bone comprises an elongate blade (7, 37) connectable to a generator of longitudinal-mode ultrasonic vibrations. The blade (7, 37) has two lateral cutting edges (9, 10) linked by a rounded distal tip (8). A series of triangular teeth (13) extends along each cutting edge (9, 10) and the distal tip (8). The blade (37) may taper towards each cutting edge (9,10) and the distal tip (8). A variant of the tool (21) comprises an elongate part-cylindrical blade (27) connectable to a generator of torsional-mode ultrasonic vibrations. The blade (27) has a cutting edge at its distal tip (28) provided with a plurality of triangular teeth (23). All forms of the tool (1, 21, 31) are particularly suitable for cutting cancellous bone around an implant to be removed during revision of a joint arthroplasty.

The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to endoscopic medical devices with distally actuated axial displacement configured to impart in-plane or rotational ultrasonic reciprocation to an end effector.

A device for destroying the blood vessels forming telangiectasias includes: a single blade; and a device body, the body having firstly a gripping part and secondly a support for the blade; and a stop situated at a distance of between 0.1 and 1 cm from a distal end of the blade limiting the penetration of the blade, in the thickness of the skin, to a depth of less than 1 cm.

An ultrasonic instrument comprises an ultrasonic transducer, an acoustic waveguide, and an ultrasonic blade. The blade includes a pair of obliquely extending edges. The obliquely extending edges diverge away from the longitudinal axis of the waveguide and away from each other along respective paths extending distally in relation to the waveguide. A distal portion of the blade is wider than a proximal portion of the blade along a plane. The blade further includes a curved distal edge and several laterally presented surfaces. The laterally presented surfaces may provide combinations of concave and convex curvatures. The laterally presented surfaces may be angled and/or curved along one or more orthogonal planes associated with the longitudinal axis of the waveguide.

An ultrasonic surgical instrument comprises a cylindrical shaft and a blade at a distal or free end of the shaft, the blade being unitary and continuous with the shaft, without an intervening joint. The shaft has a longitudinal axis and the blade includes a flat or planar blade body with a proximal end eccentrically disposed relative to the shaft axis. Thus, the blade body or at least a proximal end portion thereof is disposed eccentrically relative to the shaft. The blade in its entirely may be inclined relative to the shaft axis or extend parallel thereto.