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US 9,314,374 B2Granted
Stroboscopic ophthalmic illuminator
AssigneeAlcon Research, Ltd.
InventorsAlexander N. Artsyukhovich, Mikhail Boukhny, Bruno Dacquay
Life of this patent
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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.
Claims20
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.
10 more elements
A method of stroboscopically illuminating an ophthalmic operating field within a human eye, comprising:
- 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.
2 more elements
A system comprising:
- 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.
9 more elements
Dependencies are inferred from the claim text.