Fluid management system for use in a medical procedure

Patent metadata

Field	Value
Publication number	US-9597445-B2
Application number	US-201113294705-A
Country	US
Kind code	B2
Filing date	Nov 11, 2011
Priority date	Nov 11, 2011
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

An apparatus and method for controlling fluid flow provided by an apparatus to a patient's eye during a surgical procedure. The method includes automatically adjusting an irrigation fluid source to a predetermined height during the surgical procedure using the apparatus, receiving a request either that the irrigation fluid source be moved to a different height from the predetermined height or that a manual adjustment mode be entered, and ceasing automatic adjusting and requiring manual adjustment of the height of the irrigation fluid source until the surgical procedure is completed or an indication received to resume automatic height adjustment of the irrigation fluid source. As an alternative, fluid flow rate or intraocular pressure may be maintained, and the design may include making adjustments to default values in other modes based on the adjustment made.

First claim

What is claimed is:

1. A method for controlling fluid flow provided by an apparatus to a patient's eye during a surgical procedure, comprising:
automatically adjusting an irrigation fluid source to a predetermined height during the surgical procedure;
receiving a request that the irrigation fluid source be moved to a different height from the predetermined height; and
on a condition that the different height is determined to be inappropriate:
ceasing the automatic adjusting of the irrigation fluid source at the predetermined height while the fluid continues to flow to the patient's eye,
preventing further automatic adjusting of the irrigation fluid source away from the predetermined height, and
allowing only manual adjustment of the irrigation fluid source height to adjust the flow rate of said fluid which continues to flow to the patient's eye, until the surgical procedure is completed or until an indication to resume automatic height adjustment of the irrigation fluid source is received.

2. The method of claim 1 , wherein the receiving the request comprises receiving a request from a user.

3. The method of claim 2 , wherein receiving the request occurs via a user interface provided at the apparatus.

4. The method of claim 1 , wherein the receiving the request comprises receiving a request to enter a manual mode.

5. The method of claim 1 , wherein the receiving the request comprises receiving a request to maintain an intraocular pressure (IOP) or fluid flow rate, and the method further comprises determining a height adjustment based on the IOP or the fluid flow rate.

6. The method of claim 1 , further comprising:
adjusting a default height related value for at least one other mode based on a difference between the predetermined height and the different height.

7. The method of claim 6 , wherein the default height related value is an irrigation fluid source height, an intraocular pressure (IOP) or a fluid flow rate.

8. The method of claim 1 , wherein the receiving the request comprises receiving the request as a result of changing modes from a first operating mode indicating a first desired height to a second operating mode indicating a second desired height, wherein the first desired height and the second desired height are different.

9. The method of claim 1 , wherein the apparatus is a phacoemulsification machine and the surgical procedure is an ocular surgical procedure.

10. The method of claim 1 , wherein the indication to resume automatic adjustment comprises a user entered indication provided via a user interface.

11. The method of claim 1 , wherein the predetermined height is a first height provided for a first mode and the different height is a second default height provided for a second mode.

12. An apparatus configured to provide fluid from an irrigation fluid source during a surgical procedure, comprising:
a retractable tubular arrangement configured to maintain the irrigation fluid source at a desired height;
a controller configured to automatically adjust the irrigation fluid source using the retractable tubular arrangement to a predetermined height during the surgical procedure; and
a processor configured to receive a request that the irrigation fluid source be moved to a different height from the predetermined height and on a condition that it is determined that the different height is inappropriate, the processor further configured to command the controller to:
cease the automatic adjusting of the irrigation fluid source at the predetermined height while the fluid continues to flow during the surgical procedure,
prevent further automatic adjusting of the irrigation fluid source away from the predetermined height, and
allow only manual adjustment of the irrigation fluid source height to adjust the flow rate of said fluid which continues to flow during the surgical procedure, until the surgical procedure is completed or until an indication is received to resume automatic adjustment of height of the irrigation fluid source.

13. The apparatus of claim 12 , wherein the processor is further configured to receive the indication from a user.

14. The apparatus of claim 13 , wherein the processor receives the indication from a user interface.

15. The apparatus of claim 12 , wherein the processor receives the request as a result of the apparatus changing modes from a first operating mode indicating a first desired height to a second operating mode indicating a second desired height, wherein the first desired height and the second desired height are different.

16. The apparatus of claim 12 , wherein the apparatus is a phacoemulsification machine and the surgical procedure is an ocular surgical procedure.

17. The apparatus of claim 12 , further comprising:
a user interface, wherein the indication to resume automatic adjustment is entered via the user interface by a user.

18. The apparatus of claim 12 , wherein the predetermined height is a first default height provided for a first mode of the apparatus and the different height is a second default height provided for a second mode of the apparatus.

19. A method for controlling fluid flow to a patient's eye using an ocular surgical device during an ocular surgical procedure, comprising:
automatically positioning an irrigation fluid source at a first desired height via the ocular surgical device without operator intervention during the ocular surgical procedure;
requesting the ocular surgical device move the irrigation fluid source to a different height from the first desired height; and
on a condition that the different height is determined to be inappropriate:
ceasing the automatic positioning of the irrigation fluid source without operator intervention at the predetermined height while the fluid continues to flow to the patient's eye,
preventing further automatic adjusting of the irrigation fluid source away from the predetermined height, and
allowing only manual adjustment of the irrigation fluid source height to adjust the flow rate of said fluid which continues to flow to the patient's eye, until the surgical procedure is completed or until an indication is received to resume automatic height adjustment without operator intervention of the irrigation fluid source.

20. The method of claim 19 , wherein the requesting comprises a user providing a request to the ocular surgical device for the different height.

21. The method of claim 20 , wherein the requesting occurs via a user interface provided at the ocular surgical device.

22. The method of claim 19 , wherein the requesting comprises the ocular surgical device providing an internal indication upon changing modes from a first operating mode indicating the first desired height to a second operating mode indicating the different height.

23. The method of claim 19 , wherein the ocular surgical device is a phacoemulsification machine.

24. The method of claim 19 , wherein the indication to resume height adjustment without operator intervention comprises a user entered indication provided via a user interface.

25. The method of claim 19 , wherein the first desired height comprises a first default height provided for a first mode of the ocular surgical device and the different height comprises a second default height provided for a second mode of the ocular surgical device.

26. A method for controlling fluid flow provided by an apparatus to a patient's eye during a surgical p

Assignees

• Ha Catherine P
• Wong Wayne S
• Claus Michael J
• Abbott Medical Optics Inc

Inventors

• Ha Catherine P
• Wong Wayne S
• Claus Michael J

Classifications

• A61M3/0241 Primary

  the liquid being supplied by gravity · CPC title

• A61F9/00745 Primary

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

• A61M3/0202

  with electronic control means or interfaces · CPC title

• A61M2210/0612

  Eyes · CPC title

• A61M3/022

  Volume; Flow rate · CPC title