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Credentials & Patents

  • B.A. Combined Plan (5 year)
  • B.S Mechanical Engineering
  • M.S. Industrial Engineering
  • Columbia College, New York, NY
  • Columbia University, School of Engineering, New York, NY
  • Stevens Institute of Technology, Hoboken, NJ
  • 1956
  • 1957
  • 1959
  • QMS Auditor
  • AS9100 Aerospace Auditor
  • QUALITY Auditor
  • HACCP Auditor
  • RAC
  • Exemplar Global
  • Probitas Authentication
  • American Society for Quality
  • American Society for Quality
  • Regulatory Affairs Professionals Society
  • Certificate #3510
  • Certificate #3510
  • Certificate #12934
  • Certificate #111
  • Certificate #17977

Patents by Alan Broadwin in collaboration with others


  1. Skin abrading apparatus # 20050154333 July 14, 2005

    Abstract: A hand held skin abrading apparatus is provided. The apparatus comprises a handle configured for gripping by a human operator; a reciprocating motion generator, in the form of a magneto-strictive ultrasonic transducer.
  2. Skin abrading apparatus # 20040087972 May 6, 2004

    Abstract: A hand held skin abrading apparatus is provided. The apparatus comprises a handle configured for gripping by a human operator; a reciprocating motion generator, in the form of a magneto-strictive ultrasonic transducer.
  3. Sheath and support for ultrasonic elongate tip # 6159176 Dec. 12, 2000

    Abstract: An improved ultrasonic surgical instrument is disclosed having a design that extends horn or tip life and minimizes instrument breakage and disintegration during use.
  4. Power-limit control for ultrasonic surgical instrument # 5968007 Oct 19, 1999

    Abstract: A control for an ultrasonic surgical instrument is described wherein a transducer having an elongate tip is vibrated to perform surgery. The amplitude of the vibrations by the tip are controlled and the power delivered to the tip can be set so that the operator of the instrument can in effect render the instrument sensitive to different tissues to avoid damage thereto and enhance the safety of the patient.
  5. Ultrasonic surgical handpiece and an energy initiator # 5421829 June 6, 1995

    Abstract: An ultrasonic oscillator drives a tool at a set frequency. An amplitude control runs the oscillator to set the vibration level. Replaceable tools of various lengths or shapes positioned along an axis vibrate for surgery at the frequency and a wave length.
  6. Apparatus for providing enhanced tissue fragmentation and/or hemostasis # 5015227 May 14, 1991

    Abstract: An improved device for delivering RF current to the operating tool of an ultrasonic surgical apparatus which comprises a switch module for selecting said RF current, an electrically conducting metal band connected to the switch module and an electrically conductive O-ring in electrical contact with the metal band and located around the acoustic connecting member of the apparatus.
  7. Ultrasonic surgical system with aspiration tubulation connector # 4988334 Jan. 29, 1991

    Abstract: An ultrasonic surgical aspirator having an improved irrigation/aspiration manifold and components to facilitate quick connections of the irrigation and aspiration lines to a handpiece.
  8. Magneto-strictive transducer # 4986808 January 22, 1991

    Abstract: A magneto-strictive transducer comprising a plurality of elongated strips of magneto-strictive material, each strip having a proximal end, a distal end and a substantially V-shaped cross section wherein each arm of the V is formed by a longitudinal length of the strip, each strip being attached to an adjacent strip at both the proximal end and the distal end to form and integral substantially rigid column having a central axis with fins extending radially relative to said axis; and an ultrasonic resonant vibrator including such a transducer.
  9. Resonator for surgical handpiece # 4978333 December 18, 1990

    Abstract: An ultrasonic resonant vibrator comprising an ultrasonic vibration magneto-strictive transducer, and a resonant member having a proximal end and a distal end for transmitting ultrasonic vibrations to an operating member which is part of the resonant structure. The vibrator comprises an integral substantially rigid column having a central axis with fins extending radially relative to said axis and having a longitudinal hole defining a tunnel centered along the central axis, wherein at least part of the resonant member is located within the tunnel; and a surgical handpiece incorporating such a vibrator.
  10. Apparatus for assembling threaded members # 4949601 August 21, 1990

    Abstract: An apparatus for assembling and disassembling threadably engageable members, which comprises: (a) wrenching means and (b) an integral securing means and torque limiter assembly.
  11. Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis # 4931047 June 5, 1990

    Abstract: An apparatus having a vibratable tip for ultrasonically disintegrating tissue in a surgical procedure and for aspirating the disintegrated tissue and fluids away from the surgical site through an opening in the tip. A connection to an electrosurgical unit provides for delivery of RF cutting current, RF coagulating current or a blend thereof to the tip so that electrosurgical procedures can be conducted separately or simultaneously with ultrasonic aspiration through the tip.
  12. Irrigation tubing connector for an ultrasonic surgical system # 4881761 Nov. 21, 1989

    Abstract: An ultrasonic surgical aspirator having an improved irrigation/aspiration manifold and components to facilitate quick connections of the irrigation and aspiration lines to a handpiece.
  13. Ultrasonic surgical system with irrigation manifold # 4846790 July 11, 1989

    Abstract: An ultrasonic surgical aspirator having an improved irrigation/aspiration manifold and components to facilitate quick connections of the irrigation and aspiration lines to a handpiece. In combination with a handle assembly having an ultrasonic vibrator for vibrating an ultrasonic tip and a nosecone, a nosecone extension defining a rotating joint for connection to the nosecone in an articulating joint for connection to a rigid or flexible flue is provided.
  14. Apparatus and method for assembly and disassembly of interchangeable surgical acoustic members # 4832021 May 23, 1989

    Abstract: An apparatus and method for assembly and disassembly of interchangeable surgical acoustic members includes a fixture for securing by a key a handpiece to which a tip and/or extender is attached. A torquing wrench has a tightening head and an untightening head on the same body, wherein the tightening head permits torquing of the tip and/or extender to a predetermined tightening torque.
  15. Method and apparatus for ultrasonic surgical fragmentation and removal of tissue # 4827911 May 9, 1989

    Abstract: A method and apparatus for periodically interrupting ultrasonic power applied to a ultrasonically vibrating tip to control its amplitude between high and low or zero amplitudes with a selectable duty cycle and repetition rate provides enhanced fragmentation and improves surgical control. The duty cycle may also vary as a function of a remotely sensed parameter such as tissue temperature.
  16. Irrigation/aspiration manifold and fittings for ultrasonic surgical aspiration system # 4747820 May 31, 1988

    Abstract: An ultrasonic surgical aspirator having an improved irrigation/aspiration manifold and components to facilitate quick connections of the irrigation and aspiration lines to a handpiece. In combination with a handle assembly having an ultrasonic vibrator for vibrating an ultrasonic tip and a nosecone, a nosecone extension defining a rotating joint for connection to the nosecone in an articulating joint for connection to a rigid or flexible flue is provided.
  17. Apparatus for refurbishing acoustic members # 4734964 April 5, 1988

    Abstract: The invention relates to a method and apparatus for cleaning and refurbishing the adjacent planar surfaces of a pair of interchangeable surgical acoustic members. The device includes a spaced pair of outwardly biased abrasive members mounted on a rotatable housing so that the tool can be located between the adjacent planar faces and about a threaded connection between them.
  18. Angulated ultrasonic surgical handpieces and method for their production # 4634419 January 6, 1987

    Abstract: An improved ultrasonic surgical handpiece includes an angled connecting body between the transducer and operative tip, with the connecting body being bent at a location between the node and antinode at its respective ends and with a second nodal plane support in the transducer section.
  19. Ultrasonic aspirator # 4223676 September 23, 1980

    Abstract: Apparatus for the surgical removal of tissue is disclosed comprising a handpiece having a resonant vibrator with a magneto-strictive stack and connecting body encompassing a hollow elongated tool which is ultrasonically vibrated at its tip longitudinally to a peak to peak stroke of at least 0.005 inches at about 25,000 cps (25 KHz). A generator powers the vibrator and is automatically controlled at the frequency to maintain the resonant vibration. Aspiration is provided by suction through the hollow tool at its tip, and a manifold enclosing the tool end of the handpiece provides irrigation.
  20. Neurosonic aspirator # 4136700 January 30, 1979

    Abstract: Apparatus for use in surgically removing tumorous neurological tissue comprises a handpiece in which a tool tip vibrating transversely to its long axis in the ultrasonic range, is mounted an irrigation fluid outlet for introducing fluid adjacent the tool tip to flush the operative site, and a fluid inlet adjacent the tool tip for withdrawing a fluid mixture from the site.
  21. Ultrasonic aspirator # 4063557 December 20, 1977

    Abstract: Apparatus for the surgical removal of tissue is disclosed comprising a handpiece having a resonant vibrator with a magneto-strictive stack and connecting body encompassing a hollow elongated tool which is ultrasonically vibrated at its tip longitudinally to a peak to peak stroke of at least 0.005 inches at about 25,000 cps (25 KHz). A generator powers the vibrator and is automatically controlled at the frequency to maintain the resonant vibration. Aspiration is provided by suction through the hollow tool at its tip, and a manifold enclosing the tool end of the handpiece provides irrigation.
  22. Automatic aspiration apparatus # 4052987 October 11, 1977

    Abstract: Apparatus is disclosed for aspiration of the operative site during open site surgery having automatic controls for responsively venting the aspiration system to atmosphere under certain conditions and for overriding the venting as desired comprising a continuously operating pump for providing suction, an aspiration line connected to the pump, a venting valve and, an aspiration valve in the aspiration line, a vacuum pressure responsive switch connected between the aspiration valve and the pump and a control system embodying activation switches and logic for controlling the operation of the valves.
  23. Flow control system # 4041947 August 16, 1977

    Abstract: A fluidic control system for use in irrigation and aspiration of the anterior chamber of the eye during ultrasonic emulsification of a cataract therein. The system comprises a handpiece with an (ultrasonically vibrated) hollow tip, the hollow tip being connected to the fluid withdrawal or aspirating portion, while an annular passage around the tip is used to introduce fluid for irrigation purposes.
  24. Neurosonic aspirator and method # 4016882 April 12, 1977

    Abstract: Method and apparatus are disclosed for use in surgically removing tumorous neurological tissue which apparatus comprises a handpiece mounting a hollow tool tip vibrating transversely to its long axis in the ultrasonic range, means for introducing fluid adjacent the tool tip to flush the operative site area, and means adjacent the tool tip for withdrawing the fluid mixture from the site.

Learn more about Alan Broadwin and his expertise as a risk management consultant when you contact him at (914) 949-2603.