Stroboscopic ophthalmic illuminator
First Claim
Patent Images
1. A system comprising:
- a surgical tool comprising a cutting element configured to vibrate at a tool vibration frequency; and
a fiber endo-illuminator, comprising;
a pulse generator configured to;
receive a signal indicating the tool vibration frequency;
determine, based at least in part on the received signal, a pulse repetition frequency corresponding to the tool vibration frequency to make the cutting element of the surgical tool appear either to be stationary or to be moving at a frequency lower than the tool vibration frequency; and
provide electrical pulses at the determined pulse repetition frequency;
an amplifier configured to amplify the electrical pulses to produce amplified pulses;
a light source driven by the amplified pulses to produce light pulses;
at least one optical fiber configured to receive the light pulses and to stroboscopically illuminate the cutting element of the surgical tool; and
the pulse generator is further configured to adjust the pulse repetition frequency in response to triggering light pulses transmitted from the fiber endo-illuminator.
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Abstract
An ophthalmic illuminator is provided that includes a pulse generator to provide amplified pulses and an amplifier to amplify the current pulses to produce amplified pulses. A light source within the ophthalmic illuminator is driven by the amplified pulses so as to stroboscopically illuminate a vibrating ophthalmic surgical tool within the interior of an eye.
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Citations
20 Claims
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1. A system comprising:
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a surgical tool comprising a cutting element configured to vibrate at a tool vibration frequency; and a fiber endo-illuminator, comprising; a pulse generator configured to; receive a signal indicating the tool vibration frequency; determine, based at least in part on the received signal, a pulse repetition frequency corresponding to the tool vibration frequency to make the cutting element of the surgical tool appear either to be stationary or to be moving at a frequency lower than the tool vibration frequency; and provide electrical pulses at the determined pulse repetition frequency; an amplifier configured to amplify the electrical pulses to produce amplified pulses; a light source driven by the amplified pulses to produce light pulses; at least one optical fiber configured to receive the light pulses and to stroboscopically illuminate the cutting element of the surgical tool; and the pulse generator is further configured to adjust the pulse repetition frequency in response to triggering light pulses transmitted from the fiber endo-illuminator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of stroboscopically illuminating an ophthalmic operating field within a human eye, comprising:
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receiving a signal indicating a vibration frequency of a cutting element of an ophthalmic surgical tool; determining, based at least in part on the received signal, a pulse repetition frequency corresponding to the tool vibration frequency to make the cutting element of the surgical tool appear either to be stationary or to be moving at a frequency lower than the tool vibration frequency; providing electrical pulses at the determined pulse repetition frequency to a light source operable to generate corresponding light pulses, the corresponding light pulses, when transmitted into the ophthalmic operating field, stroboscopically illuminating the cutting element of the ophthalmic surgical tool; and adjusting the pulse repetition frequency in response to triggering light pulses received from the ophthalmic operating field. - View Dependent Claims (10, 11, 12, 13)
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14. A system comprising:
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a surgical tool comprising a cutting element configured to vibrate at a tool vibration frequency; and an ophthalmic illuminator, comprising; a pulse generator configured to; receive a signal indicating the tool vibration frequency; determine, based at least in part on the received signal, a pulse repetition frequency corresponding to the tool vibration frequency to make the cutting element of the surgical tool appear either to be stationary or to be moving at a frequency lower than the tool vibration frequency; and provide electrical pulses at the determined pulse repetition frequency; an amplifier configured to amplify the electrical pulses to produce amplified pulses; a light source driven by the amplified pulses to stroboscopically illuminate the cutting element of the surgical tool; and the pulse generator is further configured to adjust the pulse repetition frequency in response to triggering light pulses transmitted from the ophthalmic illuminator. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification