Ultrasonic surgical handpiece and an energy initiator

A flue for an ultrasonic surgical handpiece having an elongate pipe tool that vibrates, the flue forming a space surrounding the pipe tool and extending from the handpiece to a vibrating tip on the pipe tool, the flue comprising:

• a central body which is hollow elongate for extending with and about an axis passing centrally therethrough and through the pipe tool;
• a funnel at one end of the central body as a proximal portion thereof to first receive the vibrating tip when inserted therewithin and the pipe tool when inserted therethrough, the funnel shaped to cooperatively engaged with and about the handpiece;
• and
• a nozzle opposite the funnel on the central body, the nozzle extending from the central body toward and about the vibrating tip of the ultrasonic surgical handpiece;
• a space between the central body and the pipe tool, the space extending axially between the nozzle and the vibrating tip, the space for directing flow of fluid about the pipe tool and the vibrating tip, and
• the flue wherein the central body is made of a material having a durometer higher than that of the nozzle.

An electromechanical oscillating system including a mechanical reverberating system for tuning of the resonance frequency of a mechanical structure designed to vibrate in harmony with the spring constant of the system and a handpiece for carrying replaceable mechanical structures in the form of ultrasonic surgical tools of various different lengths and/or configurations, comprising:

• a housing extends along an axis for the handpiece, the housing being hollow and held proximally during use;
• a transducer within the housing, the transducer positioned along an axis and selected for oscillating along the axis with motion sufficient for surgery and at around at least one preferred frequency and wavelength,
• an electronic oscillator circuit connected to the transducer for initiating and driving the transducer to oscillate at the preferred frequency and wavelength;
• a member fitted to the transducer and extending distally from the transducer along the axis within the housing;
• ultrasonic surgical tools attachable to the connecting member so that each tool may be of different lengths and/or configurations tuned to oscillate around at least the preferred frequency and wavelength;
• a flue extending from the handpiece housing distally about the ultrasonic surgical tool that vibrates;
• a body on the flue, the body which is hollow and elongate for extending with and about the axis passing centrally therethrough and through the pipe tool;
• a funnel at an end of the body as a proximal portion thereof to first receive the vibrating tip when inserted therewithin and the ultrasonic surgical tool when inserted therethrough, the funnel shaped to cooperatively engaged with and about the housing;
• and
• a nozzle opposite the funnel on the central body, the nozzle extending from the body toward and about the vibrating tip of the ultrasonic surgical tool;
• a space between the body and the ultrasonic surgical tool, the space extending axially between the nozzle and the vibrating tip, the space for directing flow of fluid about the ultrasonic surgical tool and the vibrating tip, and
• the flue wherein the body is made of a material having a durometer higher than that of the nozzle.