Longitudinal-torsional ultrasonic tissue Dissection

• US 20010047166A1
• Filed: 04/11/2001
• Published: 11/29/2001
• Est. Priority Date: 04/12/2000
• Status: Active Grant

• Current Assignee: David G. Wuchinich
• Original Assignee: David G. Wuchinich
• Inventors: Wuchinich, David G.
• Granted Patent: US 6,984,220 B2
• Time in Patent Office: Days
• US Class Current: 606/1
• 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 2017/32007 with suction or vacuum means
• CPC Class Codes: A61B 2017/320074 blade
• CPC Class Codes: A61B 2017/320084 Irrigation sleeves
• CPC Class Codes: A61B 2017/320098 with transverse or torsional motion
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system

Abstract

An ultrasonic tissue dissection system providing combined longitudinal and torsional motion of tips, together with irrigation and aspiration, for improved cutting of resistant biological tissue. The system permits the use of common and inexpensive electromechanical transducers for the production of such motion through the use of longitudinal-torsional resonators.

Claims

1. An ultrasonic longitudinal-torsion tissue dissection system comprising an

electrical generator supplying electrical voltage and current by connection to

a electromechanical transducer that is joined mechanically to a

Longitudinal-Torsional resonator mechanically that is mechanically joined to

a tip in contact with biological tissue.

2. A system of

claim 1

where the electro-mechanical transducer is a longitudinal transducer.

3. A system of

claim 1

where the electromechanical transducer is a torsional transducer.

5. A system of

claim 1

where the electro-mechanical transducer is a longitudinal transducer.

6. A system of

claim 1

where the electro-mechanical transducer is a torsional transducer.

9. A system of

claim 1

where the electromechanical transducer is a longitudinal transducer.

10. A system of

claim 1

where the electromechanical transducer is a torsional transducer.

4. An ultrasonic longitudinal-torsion tissue dissection system comprising an

electrical generator supplying electrical voltage and current by connection to

a electromechanical transducer that is joined mechanically to a

longitudinal-torsional resonator mechanically that is mechanically joined to

a tip in contact with biological tissue.

a source of irrigation fluid connected to

said Longitudinal-Torsional resonator.

7. A system of

claim 4

where said source of irrigation fluid is connected to said electromechanical transducer.

8. An ultrasonic longitudinal-torsion tissue dissection system comprising an

electrical generator supplying electrical voltage and current by connection to

a electromechanical transducer that is joined mechanically to a

longitudinal-torsional resonator mechanically that is mechanically joined to

a tip in contact with biological tissue.

a vacuum source connected to

said Longitudinal-Torsional resonator.

11. A system of

claim 8

where said source of irrigation fluid is connected to said electro-mechanical transducer.