Automatically switching different aspiration levels and/or pumps to an ocular probe

Patent metadata

Field	Value
Publication number	US-11369729-B2
Application number	US-201715430380-A
Country	US
Kind code	B2
Filing date	Feb 10, 2017
Priority date	Nov 7, 2008
Publication date	Jun 28, 2022
Grant date	Jun 28, 2022

Abstract

Methods and apparatuses for automatically switching different aspiration levels to an ocular probe are disclosed herein. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level. Control feed back of the pumps may be varied according to set thresholds.

First claim

What is claimed is:

1. A phacoemulsification system, comprising:
a handpiece, wherein the handpiece comprises a needle having at least one port and wherein the needle is configured to operate in a longitudinal cutting mode and a non-longitudinal cutting mode, wherein the needle moves in a longitudinal direction relative to the handpiece when operating in the longitudinal cutting mode and moves in a non-longitudinal direction relative to the handpiece when operating in the non-longitudinal cutting mode;
a first pump, wherein the first pump is configured to aspirate material from an eye and is coupled with the handpiece;
a second pump, wherein the second pump is configured to aspirate material from the eye and is coupled with the handpiece;
wherein the needle only operates in the longitudinal cutting mode when the first pump is operated to aspirate the material and the second pump is not being operated, and wherein the needle only operates in the non-longitudinal cutting mode when the second pump is operated to aspirate the material and the first pump is not being operated.

2. The system of claim 1 , wherein the first pump comprises a flow based pump and the second pump comprises a vacuum based pump.

3. The system of claim 1 , wherein the first pump comprises a vacuum based pump and the second pump comprises a vacuum based pump.

4. The system of claim 1 , wherein the first pump comprises a flow based pump and the second pump comprises a flow based pump.

5. The system of claim 1 , wherein the non-longitudinal direction is selected from the group consisting of transversal and torsional.

6. The system of claim 1 , further comprising a foot pedal, wherein the foot pedal is configured to move in a first direction and a second direction, wherein the first direction is configured to control the first pump and the longitudinal cutting mode and the second direction is configured to control the second pump and the non-longitudinal cutting mode.

7. The system of claim 6 , wherein the first direction and the second direction are selected from the group consisting of yaw and pitch.

Assignees

• Johnson & Johnson Surgical Vision Inc

Inventors

• Raney Robert G
• Claus Michael J
• Gerg James
• Wong Wayne S
• King David A
• Staggs James W
• Lee Fred

Classifications

• A61F9/00745 Primary

  using mechanical vibrations, e.g. ultrasonic · CPC title

• A61M1/72

  Cassettes forming partially or totally the fluid circuit · CPC title

• A61M1/772

  operating alternately · CPC title

• A61M1/77

  Suction-irrigation systems (aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463) · CPC title

• A61M1/80

  Suction pumps (A61M1/64, A61M1/71, A61M60/00 take precedence) · CPC title