Electrosurgical instrument with vibration

• US 6,562,032 B1
• Filed: 03/26/2001
• Issued: 05/13/2003
• Est. Priority Date: 03/26/2001
• Status: Expired due to Term

• Current Assignee: Cynosure, LLC (Hologic Incorporated)
• Original Assignee: ALAN G. ELLMAN, Jon C. Garito
• Inventors: Garito, Jon C., Ellman, Alan G.
• Primary Examiner(s): Jeffery, John A.
• Application Number:
  US09/817,382
• Time in Patent Office: 778 Days
• Field of Search: 606/40-42, 606/45, 606/48-50, 601/1-3
• US Class Current: 606/41
• CPC Class Codes: A61B 17/320068 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 Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 2017/320069 for ablating tissue
• CPC Class Codes: A61B 2017/32007 with suction or vacuum means
• CPC Class Codes: A61B 2017/320071 with articulating means for working tip
• CPC Class Codes: A61B 90/30 Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
• CPC Class Codes: A61N 7/02 Localised ultrasound hyperthermia hyperthermia in general A61F7/00

Abstract

A combination electrosurgical instrument and vibratory device provides simultaneous transmission of radiofrequency energy and vibratory ultrasonic energy via a simple efficient handpiece attachment enabling a surgeon to modulate all types of tissues with different degrees of effectiveness. The combination of the invention enhances the proven effectiveness of both radiofrequency and ultrasonic technology. In a preferred embodiment, a small unbalanced motor that vibrates when activated is used to cause an electrosurgical handpiece containing the electrosurgical electrode to vibrate as a whole and to transmit to the electrode ultrasonic energy. The invention is of especial value when applied to skin resurfacing, but will also be of value for tissue modulation, coagulation, hemostasis and other electrosurgical procedures.

Claims

1. An electrosurgical instrument providing ultrasonic energy, comprising:

(a) a housing having a device for generating ultrasonic energy,

(b) a handpiece for holding an electrosurgical electrode, said handpiece being mounted to the housing,

(c) means for supplying electrosurgical currents to the handpiece and via the handpiece to the electrode,

(d) means for activating the device for generating ultrasonic energy such that ultrasonic energy is imparted to the electrode while electrosurgical currents can be applied to the electrode, wherein, the device for generating ultrasonic energy comprises an unbalanced motor mounted in the housing.

2. An electrosurgical instrument as claimed in claim 1, wherein the housing comprises one or more batteries for activating the device for generating ultrasonic energy.

3. An electrosurgical instrument as claimed in claim 1, wherein the housing comprises means for illuminating a region adjacent to the electrosurgical electrode.

4. An electrosurgical instrument providing ultrasonic energy, comprising:

(a) a housing having a device for generating ultrasonic energy,

(b) a handpiece for holding an electrosurgical electrode, said handpiece being mounted to the housing,

(c) means for supplying electrosurgical currents to the handpiece and via the handpiece to the electrode,

(d) means for activating the device for generating ultrasonic energy such that ultrasonic energy is imparted to the electrode while electrosurgical currents can be applied to the electrode, wherein the device for generating ultrasonic energy is a DC vibrating motor.

5. An electrosurgical instrument as claimed in claim 4, wherein the housing comprises one or more batteries for activating the device for generating ultrasonic energy.

6. An electrosurgical instrument as claimed in claim 4, further comprising a handpiece holder attached to the housing, the handpiece being removably mounted in the handpiece holder.

7. In combination:

(a) a handpiece having means at one end for connection to electrosurgical apparatus capable of supplying high frequency RF currents and having at its opposite end means for mounting the electrically-conductive shaft of an electrosurgical electrode and for supplying the high frequency currents to said electrode;

(b) means for generating ultrasonic energy such that ultrasonic energy is imparted to the electrode while electrosurgical currents can be applied to the electrode.

(c) wherein the means for generating ultrasonic energy comprises a fractional-horsepower DC unbalanced motor.

8. The combination of claim 7, wherein the unbalanced motor rotates at about 18-12K rpm.

9. The combination of claim 7, wherein the high frequency currents are at a frequency exceeding 2 MHz.

10. The combination of claim 7, wherein the high frequency currents are at a frequency of about 4 MHz.

11. A surgical procedure for a patient, comprising the steps:

(a) providing electrosurgical apparatus connected to a handpiece holding an electrosurgical electrode,

(b) providing a source of ultrasonic energy that can be imparted to the electrosurgical electrode, wherein the source of ultrasonic energy comprises a fractional-horsepower unbalanced motor rotating at a speed that will impart ultrasonic vibrations to the handpiece,

(c) applying the electrosurgical electrode to a surgical site of patient while activating the electrosurgical apparatus and the source of ultrasonic energy.

12. A surgical procedure for a patient as claimed in claim 11, wherein the electrosurgical apparatus supplies electrosurgical currents of about 4 MHz to the electrode.

13. A surgical procedure for a patient as claimed in claim 12, wherein the source of ultrasonic energy comprises a fractional-horsepower unbalanced motor rotating at a speed of about 10K rpm.