Medical handpiece with automatic power switching means

Patent metadata

Field	Value
Publication number	US-9775666-B2
Application number	US-201313867485-A
Country	US
Kind code	B2
Filing date	Apr 22, 2013
Priority date	Jul 11, 2002
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

A medical instrument includes a handpiece, an electromechanical transducer disposed in the handpiece, and an electrical circuit disposed at least partially in the handpiece for supplying alternating electrical current of a predetermined frequency to the transducer. A probe is operatively connected to the transducer for transmitting vibrations generated by the transducer to an operative site in a patient. A switching device is mounted to the handpiece and is operatively connected to the circuit and the transducer for enabling the supply of power to the transducer during a motion of the probe in a preselected direction relative to the handpiece and for disabling the supply of power to the transducer upon a termination of motion of the probe in the preselected direction.

First claim

What is claimed is:

1. A method for performing a surgical operation, comprising:
providing a medical instrument having a handgrip at a proximal end and an operative tip at a distal or free end;
moving said medical instrument in a preselected direction relative to said medical instrument;
automatically transmitting power to said operative tip during the moving of said medical instrument in said preselected direction;
terminating the motion of said medical instrument in said preselected direction; and
automatically terminating the transmission of power to said operative tip upon the terminating of the motion of the medical instrument in said preselected direction so that power is transmitted to said operative tip when and only when said medical instrument is being moved in said preselected direction.

2. The method defined in claim 1 wherein said medical instrument is provided with a motion sensor, the automatic transmitting of power to said operative tip including operating said sensor to detect an onset of motion of said medical instrument in said preselected direction, the automatic terminating of the power transmission to said operative tip including the operating of said sensor to detect a cessation of motion in said preselected direction.

3. A method for performing a surgical operation, comprising:
providing a medical instrument having a handgrip at a proximal end and an operative tip at a distal or free end;
moving said medical instrument in a preselected direction relative to said medical instrument;
automatically transmitting power to said operative tip during the moving of said medical instrument in said preselected direction;
terminating the motion of said medical instrument in said preselected direction; and
automatically terminating the transmission of power to said operative tip upon the terminating of the motion of said medical instrument in said preselected direction,
the transmitting of power to said operative tip being carried out only when said medical instrument is being moved in said preselected direction through a mass providing frictional resistance to passage of the instrument.

4. The method defined in claim 3 wherein said medical instrument is provided with a motion sensor, the automatic transmitting of power to said operative tip including operating said sensor to detect an onset of motion of said medical instrument in said preselected direction, the automatic terminating of the power transmission to said operative tip including the operating of said sensor to detect a cessation of motion in said preselected direction.

Assignees

• Misonix Inc
• Misonix Inc

Inventors

• Manna Ronald R
• Isola Scott
• Novak Theodore A D

Classifications

• A61B17/320068 Primary

  using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745) · CPC title

• A61B2090/065

  for measuring contact or contact pressure · CPC title

• A61M2202/08

  Lipoids · CPC title

• A61B2017/0042

  with special provisions for gripping · CPC title

• A61B2017/00367

  Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like · CPC title