Surgical device for bone surgery

• US 8,002,783 B2
• Filed: 12/12/2007
• Issued: 08/23/2011
• Est. Priority Date: 12/21/1999
• Status: Active Grant

• Current Assignee: Piezosurgery, Inc.
• Original Assignee: Piezosurgery, Inc.
• Inventors: Vercellotti, Domenico, Bianchetti, Fernando, Vercellotti, Tomaso
• Primary Examiner(s): NELSON, CHRISTINE L
• Assistant Examiner(s): Waggle, Jr.; Larry E
• Application Number:
  US11/954,676
• Publication Number:
  US 20090024118A1
• Time in Patent Office: 1,350 Days
• Field of Search: 433/86, 604/67, 604/74, 604/123, 604/151, 604/911, 606167-170, 606 79- 85, 606/86.R, 606171-183
• US Class Current: 606/169
• CPC Class Codes: A61B 17/16 Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans arthroscopic bone cutters A61B17/320016; dental implant drills potentially for other surgical use A61C8/0089; bone grinders A61F2/4644, A22C17/06; A61B17/1662 takes precedence over all other subgroups except A61B17/17
• CPC Class Codes: A61B 17/1673 for the jaw
• CPC Class Codes: A61B 17/1688 for the sinus or nose
• CPC Class Codes: A61B 17/1732 for bone breaking devices
• CPC Class Codes: A61B 2017/320082 for incising tissue
• CPC Class Codes: A61C 1/0007 Control devices or systems fluid temperature control in air and water supply systems of dental machines or apparatus A61C1/0069
• CPC Class Codes: A61C 1/07 with vibratory drive, e.g. ultrasonic
• CPC Class Codes: A61C 8/0092 for sinus lifting

Abstract

A surgical device (1) for bone surgery including a body (2) able to be gripped by the user and a tip (3) mounted at the head of the body and set in vibration at a modulated ultrasonic frequency to operate on bone tissue, the surgical device (1) being particularly suitable for oral surgical procedures such as bone sampling, excision of cysts, third molar extraction, preparation of alveolar sites, creation of an opening into the maxillary sinus (Caldwell Luc), elevation of the maxillary sinus by the crestal route and orthopedic and neurosurgical procedures such as osteoplasty, ostectomy and osteotomy.

Claims

1. A surgical device comprising:

a body having a first interface and second interface, the first interface to receive a removable ultrasound tip and the second interface to receive an electrical signal;

a transducer to provide an ultrasound signal to the first interface in response to the electrical signal; and

a console including;

a microprocessor to execute a software program corresponding to the removable ultrasound tip from a plurality of pre-set software programs corresponding to a plurality of different types of removable ultrasound tips, the microprocessor to provide a first control signal in response to execution of the software program and a second control signal; and

a power stage to provide the electrical signal from a power source in response to the first control signal;

wherein during a mode of operation, the ultrasound signal has a first amplitude during a first period of time and the ultrasound signal has a second amplitude during a second period of time.

2. The surgical device of claim 1, wherein the surgical device operates in another mode of operation, wherein during the another mode of operation, the ultrasound signal has a constant amplitude and constant frequency.

3. The surgical device of claim 2, wherein the mode of operation is selected in response to the second control signal.

4. The surgical device of claim 3, wherein the console includes a user interface and the second control signal is generated in response to a selection at the user interface.

5. The surgical device of claim 1, wherein the transducer is included in the body, wherein the second interface is adapted to receive fluid from a peristaltic pump included in the console and, wherein the first interface is adapted to output the fluid.

6. The surgical device of claim 1, wherein the removable ultrasound tip is shaped to operate on bone.

7. The surgical device of claim 1, wherein the removable tip is shaped to perform a type of surgery selected from the group consisting of oral, orthopedic and neurological surgery.

8. A surgical device for bone surgery comprising:

a body having a first and second interface, the first interface to receive a removable ultrasound tip and the second interface to receive an electrical sinusoidal signal and fluid;

a transducer, included in the body, to provide an ultrasound signal to the first interface in response to the electrical sinusoidal signal; and

a console including;

a keyboard to generate a first control signal in response to a user selection;

a microprocessor to execute a software program corresponding to the removable ultrasound tip from a plurality of pre-set software programs corresponding to a plurality of different types of removable ultrasound tips, the microprocessor to provide a second control signal in response to execution of the software program and the first control signal;

a power stage to provide the electrical sinusoidal signal from a power source in response to the second control signal;

wherein the surgical device operates in one of a first and second mode of operation in response to the second control signal,

during the first mode of operation, the ultrasound signal has a first amplitude and first frequency, and

during the second mode of operation, an amplitude of the ultrasound signal is modulated at a first low frequency signal.

9. The surgical device of claim 8, wherein the console further includes a pump controller to control the amount of fluid provided to the second interface in response to a third control signal provided by the microprocessor.

10. The surgical device of claim 8, wherein the surgical device operates in one of the first, second and a third mode of operation, during the third mode operation, an amplitude of the ultrasound signal is modulated at a second low frequency signal.

11. The surgical device of claim 10, wherein the surgical device operates in one of the first, second, third and a fourth mode of operation, during the fourth mode operation, an amplitude of the ultrasound signal is modulated at a third low frequency signal and the amplitude is lower than the first amplitude.

12. The surgical device of claim 8, wherein the first low frequency signal has a frequency between approximately 6 Hz and approximately 40 Hz.

13. An ultrasonic surgical device comprising:

a substantially cylindrical handpiece having a first and second interface, the first interface to receive a removable ultrasound insert shaped to perform surgery and the second interface to receive an electrical sinusoidal signal and fluid;

a transducer, included in the substantially cylindrical handpiece, to provide an ultrasound signal to the first interface in response to the electrical sinusoidal signal; and

a console including;

a keyboard to generate a first control signal in response to a keyboard selection;

a microprocessor to execute a software program corresponding to the removable ultrasound insert from a plurality of pre-set software programs corresponding to a plurality of different types of removable ultrasound inserts, the microprocessor to provide a second control signal in response to execution of the software program and a first control signal;

a power stage to provide the electrical sinusoidal signal from a power source in response to the second control signal; and

a pump controller to control the amount of fluid provided to the second interface in response to a third control signal provided by the microprocessor;

wherein the surgical device operates in one of a first and second mode of operation in response to the second control signal,

during the first mode of operation, the ultrasound signal has a first frequency and first amplitude, and

during the second mode of operation, an amplitude of the ultrasound signal is modulated at a low frequency signal.

14. The surgical device of claim 13, wherein the surgical device operates in one of the first, second and a third mode of operation, during the third mode operation an amplitude of the ultrasound signal is modulated at a second low frequency signal and an amplitude of the ultrasound signal is reduced from the first amplitude.

15. The surgical device of claim 13, wherein the second mode of operation includes the ultrasound signal having a selected predetermined number of cycles per second.

16. The surgical device of claim 13, further comprising a mount to support a container, coupled to a peristaltic pump, to store the fluid, wherein the third control signal is generated to provide a flow rate of the fluid in response to the keyboard selection at the keyboard.

17. The surgical device of claim 13, wherein the removable ultrasound insert is selected from the group consisting of a scalpel, spatula, saw and elevator.

18. The surgical device of claim 13, wherein the low frequency signal has a frequency between approximately 6 Hz and approximately 40 Hz.