A device, including a therapeutics substance delivery apparatus and an incisor, wherein the device is a minimally invasive inner ear therapeutic substance delivery device configured to reach the inner ear through a passage through the tympanic membrane to incise through tissue and deliver a therapeutic substance, and the incisor is at least one of a drill bit configured to drill through a promontory of a cochlea of a human, or a conduit configured to pierce a round window of the human with a fully intact round window niche.

A drill bit for drilling into bone, including at least a first, second and third longitudinally extending substantially straight flute blades, wherein the drill bit has an extrapolated outer profile established by rotation of the first, second and third flute blades 360 degrees about a longitudinal axis thereof, the extrapolated outer profile includes a first surface having tangents more perpendicular than parallel to the longitudinal axis, and the extrapolated outer profile includes a second surface having tangents more parallel than perpendicular to the longitudinal axis.

A medical cutting device for creating thin slices, has a device body, a cover, a working section which rigidly adjoins a connecting section, and a recess on the top side, which is enclosed by a delimiting ridge. The cover comprises a counterpart to the connecting section adjoined by a pressure section which is positioned opposite the recess at a distance d.sub.a, and therefore a guide slot extending between the working section and the pressure section remains free for a cutting blade. The distance of the guide slot to the bottom surface of the recess, which is defined by the distance d.sub.a, defines the thickness, which can be achieved, of a slice to be created. The cutting blade is disposed within the guide slot and is rigidly connected to a rotatable shaft extending perpendicularly to the plane of the guide slot and extends through a recess in the cover.

A burr attachment designed for use with a curved burr attachment or other chuck attachments that includes a tube with a wire shaft supported therein and a coil spring surrounding said wire shaft and having each of the coils touch the outer periphery surface of the wire shaft and the inner peripheral surface of said tube to enhance cooling of said outer periphery of said tube from the heat generated by said wire shaft and attenuate vibrations while allowing said burr attachment to be bent without kinking.

A surgical drilling instrument with a Curved Burr Attachment having an adapter removably coupled to a drill motor and a burr attachment coupled to said adapter. The burr attachment includes a tube with a wire shaft supported therein and a coil wire surrounding said wire shaft and having each of the coils touch the outer periphery surface of the wire shaft and the inner peripheral surface of said tube to enhance cooling of said outer periphery of said tube from the heat generated by said wire shaft and attenuate vibrations while allowing said burr attachment to be bent without kinking.

Described herein is a method for treating a narrowed region of a lumen in the ear or nose of a patient. The method includes advancing a catheter within the lumen such that a distal end of the catheter is positioned proximate to the narrowed region, filling a fillable member to expand the fillable member within the lumen, and generating at least one shock wave from at least one shock wave emitter. The at least one shock wave creates one or more fractures in a bony structure of the narrowed region of the lumen that dilate the narrowed region.

A burr attachment designed for use with a curved burr attachment or other chuck attachments that includes a tube with a wire shaft supported therein and a coil spring surrounding said wire shaft and having each of the coils touch the outer periphery surface of the wire shaft and the inner peripheral surface of said tube to enhance cooling of said outer periphery of said tube from the heat generated by said wire shaft and attenuate vibrations while allowing said burr attachment to be bent without kinking.

A drill bit for drilling into bone, including at least a first, second and third longitudinally extending substantially straight flute blades, wherein the drill bit has an extrapolated outer profile established by rotation of the first, second and third flute blades 360 degrees about a longitudinal axis thereof, the extrapolated outer profile includes a first surface having tangents more perpendicular than parallel to the longitudinal axis, and the extrapolated outer profile includes a second surface having tangents more parallel than perpendicular to the longitudinal axis.

A burr attachment designed for use with a curved burr attachment or other chuck attachments that includes a tube with a wire shaft supported therein and a coil spring surrounding said wire shaft and having each of the coils touch the outer periphery surface of the wire shaft and the inner peripheral surface of said tube to enhance cooling of said outer periphery of said tube from the heat generated by said wire shaft and attenuate vibrations while allowing said burr attachment to be bent without kinking.

A surgical drilling instrument with a Curved Burr Attachment having an adapter removably coupled to a drill motor and a burr attachment coupled to said adapter. The burr attachment includes a tube with a wire shaft supported therein and a coil wire surrounding said wire shaft and having each of the coils touch the outer periphery surface of the wire shaft and the inner peripheral surface of said tube to enhance cooling of said outer periphery of said tube from the heat generated by said wire shaft and attenuate vibrations while allowing said burr attachment to be bent without kinking.