System and method for modulated surgical procedure irrigation and aspiration
First Claim
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1. A method for aspirating fluid from an ocular region during a phacoemulsification procedure, comprising:
- aspirating the ocular region by applying a series of modulated differential pressure pulses to the ocular region via a tubing deformation fluid control device configured to selectively deform and substantially close aspiration tubing to provide aspirating fluid from the ocular region, anddelivering modulated ultrasonic energy to the ocular region simultaneous with said aspirating;
wherein selectively deforming and substantially closing aspiration tubing occurs in a controlled nonrandom manner such that fluid is aspirated according to an alterable and controllable nonrandom timing scheme, and further wherein timing of the series of modulated differential pressure pulses is selectively alterable relative to timing of the modulated ultrasonic energy delivery.
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Abstract
A method and apparatus for performing modulated fluid delivery and aspiration during a surgical procedure such as phacoemulsification is provided. The method and apparatus include delivering fluid and/or aspirating fluid in a modulated or pulsed manner during a surgical procedure, including applying fluid and/or aspirating fluid in connection with ultrasonic energy at a level and for a time period sufficient to induce transient cavitation. Fluid may be applied and/or aspirated at a timing sequence and duty cycle similar to or different from application of ultrasonic energy delivery.
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Citations
65 Claims
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1. A method for aspirating fluid from an ocular region during a phacoemulsification procedure, comprising:
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aspirating the ocular region by applying a series of modulated differential pressure pulses to the ocular region via a tubing deformation fluid control device configured to selectively deform and substantially close aspiration tubing to provide aspirating fluid from the ocular region, and delivering modulated ultrasonic energy to the ocular region simultaneous with said aspirating; wherein selectively deforming and substantially closing aspiration tubing occurs in a controlled nonrandom manner such that fluid is aspirated according to an alterable and controllable nonrandom timing scheme, and further wherein timing of the series of modulated differential pressure pulses is selectively alterable relative to timing of the modulated ultrasonic energy delivery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for aspirating fluid from an ocular region, comprising:
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applying a series of modulated differential pressure pulses to the ocular region via a tubing deformation fluid control device configured to selectively deform and substantially close aspiration tubing to provide aspirating fluid from the ocular region; and delivering modulated ultrasonic energy to the ocular region simultaneous with said applying; wherein selectively deforming and substantially closing aspiration tubing occurs via the tubing deformation fluid control device in a controlled nonrandom manner such that fluid is aspirated according to an alterable and controllable nonrandom timing scheme, and further wherein timing of the series of modulated differential pressure pulses is selectively alterable relative to timing of the modulated ultrasonic energy delivery. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for aspirating fluid from an ocular region, comprising:
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applying modulated differential fluid pressure pulses to the ocular region by selectively deforming and substantially closing aspiration tubing, thereby providing aspirating fluid from the ocular region, wherein selectively deforming and substantially closing aspiration tubing occurs in a controlled nonrandom manner such that fluid is aspirated according to an alterable and controllable nonrandom timing scheme; and delivering modulated ultrasonic energy to the ocular region simultaneous with said applying; wherein timing of the modulated differential fluid pressure pulses is selectively alterable relative to timing of the modulated ultrasonic energy delivery. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for treating an ocular region, comprising:
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applying modulated differential pressure pulses to the ocular region to aspirate the ocular region by selectively deforming and substantially closing aspiration tubing, thereby providing aspirating fluid from the ocular region, wherein selectively deforming and substantially closing aspiration tubing occurs via the tubing deformation fluid control device in a controlled nonrandom manner such that fluid is aspirated according to an alterable and controllable nonrandom timing scheme; and delivering modulated ultrasonic energy to the ocular region simultaneous with said applying; wherein timing of the modulated differential fluid pressure pulses is selectively alterable relative to timing of the modulated ultrasonic energy delivery. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A method for aspirating fluid during a phacoemulsification procedure, comprising:
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applying a series of modulated differential fluid pressure pulses to an ocular region during the phacoemulsification procedure by selectively deforming and substantially closing aspiration tubing, thereby providing aspirating fluid from the ocular region; and delivering modulated ultrasonic energy to the ocular region simultaneous with said applying; wherein selectively deforming and substantially closing aspiration tubing occurs in a controlled nonrandom manner such that fluid is aspirated according to an alterable and controllable nonrandom timing scheme; wherein timing of the modulated differential fluid pressure pulses is selectively alterable relative to timing of the modulated ultrasonic energy delivery. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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Specification