Infusion control system

• US 6,491,661 B1
• Filed: 11/10/1999
• Issued: 12/10/2002
• Est. Priority Date: 06/18/1999
• Status: Expired due to Term

• Current Assignee: Alcon Incorporated
• Original Assignee: Alcon Manufacturing Limited (Alcon Incorporated)
• Inventors: Boukhny, Mikhail, Morgan, Michael D., Sorensen, Gary P.
• Primary Examiner(s): Nguyen, Anhtuan T.
• Assistant Examiner(s): WILLIAMS, CATHERINE SERKE
• Application Number:
  US09/437,453
• Time in Patent Office: 1,126 Days
• Field of Search: 604/19, 604/22, 604/27, 604/30-35, 604/93.01, 604/65-67, 604/118-120, 604/245-246, 604/537, 606/107, 600/156, 600/158
• US Class Current: 604/67
• CPC Class Codes: A61F 9/00736 Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments A61F9/008 takes precedence
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463

Abstract

An infusion control system having a flexible, collapsible infusion container. The container can be compressed between rollers or plate so at to pressurize the container. Such a system allows for rapid pressure response rates without the need of venting devices or air filtering. The may also include an irrigation flow sensor. The sensor may be placed in the control console or in the infusion handpiece. Irrigation flow measurements provided by the sensor allows the control system to vary irrigation pressure and/or flow, aspiration pressure and/or flow and power supplied to the handpiece more accurately than sensors that monitor aspiration flow.

Claims

1. A control system for a surgical system, comprising:

a. a control console having a control module, an irrigation line in fluid communication with an infusion container containing an irrigation fluid and an aspiration pump;

b. a pressurizing source for pressurizing the infusion container;

c. a surgical handpiece in communication with the control module and in fluid communication with the irrigation line; and

d. an irrigation fluid volume sensor contained in the handpiece, the sensor in fluid communication with the irrigation line and capable of providing information regarding the flow of the irrigation fluid to the control module.

2. The control system of claim 1 wherein the control console further comprises a handpiece power supply.

3. The control system of claim 1 wherein the control module is capable of varying the operation of the aspiration pump based on the irrigation fluid flow information supplied by the sensor.

4. The control system of claim 1 wherein the control module is capable of varying the operation of the aspiration pump and the output of the handpiece power supply based on the irrigation fluid flow information supplied by the sensor.

5. The control system of claim 1 wherein the control module is capable of providing audible tones based on the irrigation fluid flow information supplied by the sensor.

6. The control system of claim 1 wherein the control module contains a valve and the module is capable of varying irrigation fluid flow through the valve based on the irrigation fluid flow information supplied by the sensor.

7. The control system of claim 1 wherein the infusion container is flexible and the pressurizing source includes a mechanism to compress the infusion container.

8. The control system of claim 7 wherein the mechanism to compress the infusion container includes a roller mechanism.

9. The control system of claim 7 wherein the mechanism to compress the infusion container includes a compression plate.