Phacoemulsification handpiece with flexible impeller pump
First Claim
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1. A phacoemulsification system comprising:
- a hand-graspable body;
a phacoemulsification needle extending from a distal portion of the body and arranged to ultrasonically vibrate to treat an ocular condition;
an ultrasonic vibration generator cooperatively coupled to the phacoemulsification needle, the phacoemulsification needle ultrasonically vibratable in response to a vibration of the ultrasonic vibration generator; and
an impeller pump carried by the hand-graspable body and configured to convey an aspiration fluid from a surgical site, the impeller pump comprising;
an aspiration motor, anda flexible impeller coupled to and rotatably driven by the aspiration motor, the flexible impeller being arranged to aspirate fluid and emulsified lens tissue from the surgical site, wherein the impeller pump comprises an impeller chamber, the impeller being non-concentrically disposed within the impeller chamber.
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Abstract
A phacoemulsification system that includes a hand-graspable body and a phacoemulsification needle extending from a distal portion of the body is disclosed herein. The phacoemulsification system may also include an impeller pump carried by the hand-graspable body and configured to convey an aspiration fluid from a surgical site. The impeller pump may include an aspiration motor and a flexible impeller coupled to and rotatably driven by the aspiration motor. The flexible impeller may be arranged to aspirate fluid and emulsified lens tissue from the surgical site.
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Citations
16 Claims
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1. A phacoemulsification system comprising:
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a hand-graspable body; a phacoemulsification needle extending from a distal portion of the body and arranged to ultrasonically vibrate to treat an ocular condition; an ultrasonic vibration generator cooperatively coupled to the phacoemulsification needle, the phacoemulsification needle ultrasonically vibratable in response to a vibration of the ultrasonic vibration generator; and an impeller pump carried by the hand-graspable body and configured to convey an aspiration fluid from a surgical site, the impeller pump comprising; an aspiration motor, and a flexible impeller coupled to and rotatably driven by the aspiration motor, the flexible impeller being arranged to aspirate fluid and emulsified lens tissue from the surgical site, wherein the impeller pump comprises an impeller chamber, the impeller being non-concentrically disposed within the impeller chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A phacoemulsification system for treating an ocular condition at a surgical site, comprising:
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a hand-graspable body; an irrigation system carried on the hand-graspable body and configured to convey an irrigation fluid for injection from a distal end of the hand-graspable body to the surgical site; and an aspiration system carried on the hand-graspable body and configured to convey an aspiration fluid into the distal end of the hand-graspable body from the surgical site, the aspiration system comprising; an aspiration motor, an impeller chamber, and a flexible impeller rotatably disposed in the impeller chamber and coupled to and rotatably driven by the aspiration motor, the flexible impeller being arranged to aspirate fluid and emulsified lens tissue from the surgical site, wherein the impeller chamber has a non-circular cross-section. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification