A video laryngeal endoscope system having flat scan video kymography and laryngoscopic functions for analyzing a motion state of a larynx comprises: a laryngoscope for viewing vocal cords; a light source for illuminating the vocal cords; a video camera which has a beam splitter for separating an image viewed by means of the laryngoscope and the light source into two images to acquire a flat scan kymographic image and a stroboscopic image; a dual image capturing unit for converting two image signals transmitted from the video camera into a digital image signal; a storage unit for storing the digital image signal; a control unit for analyzing the digital image signal of the storage unit and simultaneously displaying analysis results of the flat scan kymographic image and the stroboscopic image; and a computer comprising analysis software for analyzing the image signal of the storage unit; and a monitor for displaying photographed images and analysis results.

An autologous cell therapy product composed of fibroblasts grown for each individual to be treated for vocal cord scarring. The suspension of autologous fibroblasts, grown from a biopsy of each individual's own buccal mucosa or skin using current good manufacturing practices (CGMP) and standard tissue culture procedures, is supplied in cryovials containing cryopreserved autologous fibroblasts or precursors thereof, at a concentration of between 1.010.sup.7 cells/mL and 2.710.sup.7 cells/mL, wherein at least 85% of the human fibroblast cells are viable after freezing and thawing.

A light source control device includes: a light source configured to intermittently emit pulse light; and a hardware processor configured to detect a vocal cord vibrational frequency of a subject based on a voice signal input from an external device, determine whether or not the vocal cord frequency is equal to or greater than a threshold value, and change a light emission frequency of the pulse light in one frame period based on image brightness based on an image signal when the vocal cord frequency is equal to or greater than the threshold value, and prohibit change in the light emission frequency and change the pulse width of the pulse light emitted by the light source based on the image brightness when the vocal cord frequency is not equal to or greater than the threshold value.

Fluorescence videostroboscopy imaging is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to cause the emitter to emit the pulses of electromagnetic radiation at a strobing frequency determined based on a vibration frequency of vocal cords of a user. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm and from about 795 nm to about 815 nm.

Hyperspectral videostroboscopy imaging is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to cause the emitter to emit the pulses of electromagnetic radiation at a strobing frequency determined based on a vibration frequency of vocal cords of a user. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 513 nm to about 545 nm, from about 565 nm to about 585 nm, or from about 900 nm to about 1000 nm.

Fluorescence videostroboscopy imaging is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to cause the emitter to emit the pulses of electromagnetic radiation at a strobing frequency determined based on a vibration frequency of vocal cords of a user. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 795 nm to about 815 nm.

Videostroboscopy with a hyperspectral, fluorescence, and laser mapping image system is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to cause the emitter to emit the pulses of electromagnetic radiation at a strobing frequency determined based on a vibration frequency of vocal cords of a user. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of a hyperspectral emission, a fluorescence emission, and/or a laser mapping pattern.

Laser mapping imaging and videostroboscopy is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to cause the emitter to emit the pulses of electromagnetic radiation at a strobing frequency determined based on a vibration frequency of vocal cords of a user. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises a laser mapping pattern.

Fluorescence videostroboscopy imaging is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to cause the emitter to emit the pulses of electromagnetic radiation at a strobing frequency determined based on a vibration frequency of vocal cords of a user. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm.

An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface and a first location configured to be positioned at the patient's vocal folds. A first electrode is formed on the exterior surface of the endotracheal tube substantially below the first location to receive EMG signals primarily from below the vocal folds. A second electrode is formed on the exterior surface of the endotracheal tube substantially above the first location to receive EMG signals primarily from above the vocal folds. The first and second electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient.