Surgical cassette for intraocular pressure control
View Patent ↗An improved surgical cassette for controlling intraocular pressure during ophthalmic surgery.
1. A surgical cassette, comprising:
a dual infusion chamber for receiving an irrigating fluid from a source external to said cassette, said dual infusion chamber disposed within an interior of said surgical cassette, said dual infusion chamber having a first chamber and a second chamber, each of said first chamber and said second chamber having a volume sufficient to hold an amount of irrigating fluid to enable said source of irrigating fluid to be exchanged without interrupting a surgical procedure, said first chamber not fluidly coupled to said second chamber;
a first fluid line fluidly coupled to said first chamber for providing said irrigating fluid to said first chamber;
a second fluid line fluidly coupled to said first chamber for providing said irrigating fluid to a surgical device;
a third fluid line fluidly coupled to said second chamber for providing said irrigating fluid to said second chamber; and
a fourth fluid line fluidly coupled to said second chamber for providing said irrigating fluid to said surgical device.
2. The surgical cassette of claim 1 wherein said first chamber and said second chamber are separated by a divider.
3. The surgical cassette of claim 1 wherein said volume is sufficient for about two minutes of said surgical procedure during a condition of maximum flow.
4. The surgical cassette of claim 1 wherein said volume is about 30 cc.