Fluidics cassette for ocular surgical system

摘要

An eye treatment cassette includes a handpiece, a vacuum source, a holding tank, a collection bag, and a displacement-based pump. The handpiece is configured to aspirate fluids from a patient's eye. The vacuum source communicates with the handpiece. The holding tank is interposed between the handpiece and the vacuum source, and is configured to hold the aspirated fluids. The collection bag is connected to the holding tank for collecting the aspirated fluids. The pump is coupled to the holding tank and is configured to operate while the vacuum source continues to aspirate fluids via the handpiece to drain the aspirated fluids from the holding tank.

主权项

1. A method for venting a handpiece of an eye treatment cassette, comprising:
operating the eye treatment cassette such that a vacuum is induced at the handpiece by a vacuum source fluidly connected to the handpiece and a holding tank; venting the handpiece by closing a valve interposed between the vacuum source and the handpiece to push fluid toward the handpiece; and operating a volumetric pump to increase pressure in the handpiece.