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

Patent metadata

Field	Value
Publication number	US-10238778-B2
Application number	US-201715430306-A
Country	US
Kind code	B2
Filing date	Feb 10, 2017
Priority date	Nov 7, 2008
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

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 system for removing material from within an eye, the system comprising:
a probe having a distal tip insertable into the eye, wherein the tip comprises an aspiration port and an irrigation port;
a console coupled with the aspiration port along an aspiration pathway, wherein the console comprises a processor and a pump system for providing a first pump rate and a second pump rate higher than the first pump rate, and an irrigation system for providing a variable irrigation rate,
wherein the processor is configured to:
automatically switch from the first pump rate to the second pump rate,
vary the irrigation rate according to the pump rates,
determine whether the second pump rate exceeds a maximum irrigation rate of the irrigation system, and
decrease an aspiration rate to the aspiration port of the probe to match the irrigation rate of the irrigation system responsive to determining that the second pump rate exceeds the maximum irrigation rate of the irrigation system.

2. The system of claim 1 , wherein the probe comprises a phacoemulsification probe.

3. The system of claim 1 , wherein the probe comprises a vitrectomy probe.

4. The system of claim 1 , wherein the first pump rate is supplied by a peristaltic pump and the second pump rate is supplied by a venturi pump.

5. The system of claim 1 , wherein the irrigation system comprises a fluid source and a variable height mechanism.

6. The system of claim 1 , wherein the irrigation system comprises a bagged fluid source and a compression mechanism.

7. The system of claim 1 , wherein the automatic switch from the first pump rate to the second pump rate comprises a constant increase in the aspiration rate at the aspiration port.

8. The system of claim 1 , wherein the processor is further configured to lower the irrigation rate of the irrigation system on a condition that the system detects the probe has been occluded.

Assignees

• Abbott Medical Optics Inc
• 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

• A61M2210/0612

  Eyes · CPC title

• A61F9/00754

  for cutting or perforating the anterior lens capsule, e.g. capsulotomes · CPC title

• A61F9/00736

  Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments (A61F9/008 takes precedence) · CPC title

• A61M2210/0618

  Nose · CPC title

• A61M2205/50

  with microprocessors or computers · CPC title