Cataract removal apparatus

• US 20020099400A1
• Filed: 01/22/2001
• Published: 07/25/2002
• Est. Priority Date: 01/22/2001
• Status: Abandoned Application

• Current Assignee: Alex Urich, John R. Wolf
• Original Assignee: Alex Urich, John R. Wolf
• Inventors: Wolf, John R., Urich, Alex
• Application Number:
  US09/765,591
• Publication Number:
  US 20020099400A1
• Time in Patent Office: Days
• US Class Current: 606/169
• CPC Class Codes: A61F 9/00745 using mechanical vibrations, e.g. ultrasonic
• CPC Class Codes: A61F 9/00763 with rotating or reciprocating cutting elements, e.g. concentric cutting needles atherectomy cutting instruments A61B17/3207; endoscopic cutting instruments A61B17/320016

Abstract

A phacoemulsification apparatus configured for reciprocating a rotary cutting bit, preferably at high frequency. Most preferably, the phacoemulsification apparatus is configured for vibrating and reciprocating the rotary cutting bit in various modes.

Claims

1. A phacoemulsification apparatus, comprising:

a rotary reciprocating hand piece;

a rotary cutting bit connected to said hand piece; and

a device for driving and controlling said hand piece, said device configured for driving and rotating said hand piece and said rotary cutting bit in a high frequency reciprocating motion.

2. An apparatus according to claim 1, wherein said hand piece is an ultrasonic hand piece.

3. An apparatus according to claim 2, wherein said ultrasonic hand piece includes an ultrasonic transducer.

4. An apparatus according to claim 3, wherein said ultrasonic transducer is configured for ultrasonically driving said rotary cutting bit in a high frequency rotary reciprocating motion.

5. An apparatus according to claim 3, wherein said ultrasonic transducer is configured for ultrasonically driving said rotary cutting bit in a high frequency translating motion.

6. An apparatus according to claim 4, wherein said ultrasonic transducer is configured for ultrasonically driving said rotary cutting bit in a high frequency translating motion.

7. An apparatus according to claim 1, including a sleeve surrounding at least a portion of said rotary cutting bit.

8. An apparatus according to claim 7, wherein said sleeve surrounds said rotary cutting bit except for a tip thereof.

9. An apparatus according to claim 1, wherein said rotary cutting bit is provided with a fluid passageway therethrough.

10. An apparatus according to claim 9, including:

a sleeve surrounding at least a portion of said rotary cutting bit;

a device for providing irrigation fluid into said hand piece; and

a device for providing aspiration fluid out of said hand piece.

11. An apparatus according to claim 10, wherein irrigation fluid is circulated within said hand piece through a first passageway defined by said fluid passageway provided in said rotary cutting bit and out of a tip of said sleeve, and aspiration fluid is then circulated into said tip of said sleeve and through a second passageway defined between said rotary cutting bit and said sleeve.

12. An apparatus according to claim 10, wherein irrigation fluid is circulated within said hand piece through a first passageway defined between said rotary cutting bit and said sleeve, and aspiration fluid is then circulated into said tip of said sleeve and through a second passageway defined by said fluid passageway provided in said rotary cutting bit.

13. An apparatus according to claim 1, wherein said rotary cutting bit is provided with cutting teeth provided on an end face thereof.

14. An apparatus according to claim 13, wherein said teeth are radially aligned extending from a center portion to an outer portion of said end face of said rotary cutting bit.