WO2021069058A1 - Système, dispositif et procédé permettant d'induire un mouvement de paupière - Google Patents

Système, dispositif et procédé permettant d'induire un mouvement de paupière Download PDF

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Publication number
WO2021069058A1
WO2021069058A1 PCT/EP2019/077128 EP2019077128W WO2021069058A1 WO 2021069058 A1 WO2021069058 A1 WO 2021069058A1 EP 2019077128 W EP2019077128 W EP 2019077128W WO 2021069058 A1 WO2021069058 A1 WO 2021069058A1
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WO
WIPO (PCT)
Prior art keywords
electrical stimulation
eyelid
movement
sensor
electrodes
Prior art date
Application number
PCT/EP2019/077128
Other languages
English (en)
Inventor
Nuha Awni ABUYOUSEF
Original Assignee
Abuyousef Nuha Awni
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abuyousef Nuha Awni filed Critical Abuyousef Nuha Awni
Priority to PCT/EP2019/077128 priority Critical patent/WO2021069058A1/fr
Publication of WO2021069058A1 publication Critical patent/WO2021069058A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0408—Use-related aspects
    • A61N1/0452—Specially adapted for transcutaneous muscle stimulation [TMS]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/0484—Garment electrodes worn by the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36003—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of motor muscles, e.g. for walking assistance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes

Definitions

  • Bell’s palsy also termed idiopathic facial paralysis, is a condition in which the muscles on one side of a person’s face become weak or paralyzed. The condition makes patients with Bell’s palsy unable to close their eyelid on the affected side of their face, though they can open the affected eyelid because a separate cranial nerve controls the muscle that opens the eye. Therefore, patients’ affected eyelids will remain open unless the patients forcibly close their affected eyelids, for example, with their fingers. Accordingly, dry eye syndrome, or exposure keratitis, is a common ocular condition associated with Bell’s palsy because patients’ affected eyelids do not blink and thus are not provided necessary moisture from the patients’ tear ducts. Dry eye syndrome, if left untreated, can lead to a total loss of the cornea, ulcers, and/or blindness in the affected eye. Thus, Bell’s palsy patients must take measures to ensure their eyes with affected eyelids are provided enough moisture.
  • the present disclosure relates generally to a system, device and method for inducing eyelid movement.
  • a system and device are provided for inducing eyelid movement that detect movement in a healthy eyelid, and in response, deliver an electrical stimulation to a non-healthy eyelid to induce the non-healthy eyelid to move (e.g., blink) in sync with the healthy eyelid.
  • the system and device may detect the healthy eyelid movement with a sensor and may deliver the electrical stimulation with electrodes.
  • the presently disclosed system and device may help restore all three types of blinking by causing a non-healthy eyelid to blink in sync with a healthy eyelid.
  • the device may be configured as a pair of glasses or goggles that a person may wear. Accordingly, the presently disclosed system and device may provide a person with a convenient way to help induce the person’s non-healthy eyelid to move (e.g., blink), and thus may help reduce the risks of dry eye syndrome.
  • a system to induce eyelid movement includes a sensor, one or more electrodes, a memory, and a controller in communication with the memory.
  • the sensor may be programmed to detect eyelid movement and to provide a movement indication in response to detecting eyelid movement.
  • the one or more electrodes may be programmed to apply an electrical stimulation to at least an orbicularis oculi muscle.
  • the memory may be programmed to store electrical stimulation settings.
  • the controller may be programmed to receive the movement indication from the sensor, and in response to receiving the movement indication, cause the one or more electrodes to apply the electrical stimulation according to the electrical stimulation settings.
  • system further includes a communication module programmed to send and receive information.
  • the communication module is programmed to send and receive information with Bluetooth.
  • the controller changes the electrical stimulation settings stored in the memory to new electrical stimulation settings upon receiving the new electrical stimulation settings from the communication module.
  • the one or more electrodes are positioned to apply electrical stimulation below and near a user’s eye on the user’s face.
  • the senor is positioned to detect movement of a healthy eyelid and the one or more electrodes are positioned to electrically stimulate the orbicularis oculi muscle of a non-healthy eyelid.
  • the senor is an infrared sensor.
  • a device to induce eyelid movement includes a front frame, one or more extensions protruding from the front frame, a sensor, one or more electrodes, a memory, and a controller in communication with the memory.
  • the sensor may be programmed to detect eyelid movement and to provide a movement indication in response to detecting eyelid movement.
  • the one or more electrodes may be programmed to apply an electrical stimulation to at least an orbicularis oculi muscle.
  • the memory may be programmed to store electrical stimulation settings.
  • the controller may be programmed to receive the movement indication from the sensor, and in response to receiving the movement indication, cause the one or more electrodes to apply the electrical stimulation according to the electrical stimulation settings.
  • the device further includes two endpieces and the sensor is positioned near one of the endpieces.
  • the one or more extensions at least one of house or are attached to the one or more electrodes.
  • the one or more extensions are configured such that the one or more extensions or the one or more electrodes contact a user’s face when the user is wearing the device.
  • the front frame includes a first side directly opposite a second side, and wherein the one or more extensions are near the first side and the sensor is near the second side.
  • the device further includes two temples or an elastic band.
  • the eyelid movement is a blink.
  • a method for inducing eyelid movement includes providing a device configured to induce eyelid movement.
  • the device includes a sensor, one or more electrodes, a memory, and a controller in communication with the memory.
  • the sensor may be programmed to detect eyelid movement and to provide a movement indication in response to detecting eyelid movement.
  • the one or more electrodes may be programmed to apply an electrical stimulation to at least an orbicularis oculi muscle.
  • the memory may be programmed to store electrical stimulation settings.
  • the controller may be programmed to receive the movement indication from the sensor, and in response to receiving the movement indication, cause the one or more electrodes to apply the electrical stimulation according to the electrical stimulation settings.
  • the electrical stimulation settings include applying a plurality of current pulses at a constant voltage.
  • the device in the method further includes a communication module configured to send and receive information.
  • the method further includes adjusting the electrical stimulation settings with a client device.
  • the eyelid movement induced is a blink.
  • Fig. 1 illustrates a schematic of facial muscles that control eyelid movement.
  • Fig. 2 illustrates example locations a through h around an eye where electrical stimulation may be applied, according to one aspect of the present disclosure.
  • FIG. 3 illustrates a perspective view of an example device to induce eyelid movement, according to one aspect of the present disclosure.
  • FIG. 4 illustrates a schematic of a person wearing an example device to induce eyelid movement, according to one aspect of the present disclosure.
  • FIGs. 5A and 5B illustrate schematics of example device extensions, according to one aspect of the present disclosure.
  • Fig. 6 illustrates a top view of an example device to induce eyelid movement having a sensor, according to one aspect of the present disclosure.
  • Fig. 7 illustrates a box diagram of an example system to induce eyelid movement, according to one aspect of the present disclosure.
  • FIG. 8 illustrates a schematic of a system for inducing eyelid movement, according to one aspect of the present disclosure.
  • the present disclosure relates generally to a system, device and method for inducing eyelid movement.
  • a system and device are provided for inducing eyelid movement that detect movement in a healthy eyelid, and in response, deliver an electrical stimulation to a non-healthy eyelid to induce the non-healthy eyelid to move (e.g., blink) in sync with the healthy eyelid.
  • the system and device may detect the healthy eyelid movement with a sensor and may deliver the electrical stimulation with electrodes.
  • the presently disclosed system and device may help restore all three types of blinking (as defined below) by causing a non-healthy eyelid to blink in sync with a healthy eyelid.
  • the device may be configured as a pair of glasses or goggles that a person may wear. Accordingly, the presently disclosed system and device may provide a person with a convenient way to help induce the person’s non-healthy eyelid to move (e.g., blink), and thus may help reduce the risks of dry eye syndrome.
  • a healthy eyelid refers to an eyelid that is capable of all three types of blinking - spontaneous, reflexive, and voluntary.
  • Spontaneous blinking refers to an eyelid blinking without external stimuli or conscious effort and instead just happens, like breathing and digestion.
  • Reflexive blinking refers to an eyelid blinking in response to an external stimulus, such as something contacting the cornea or objects that appear rapidly in front of the eye.
  • Voluntary blinking refers to an eyelid blinking because a person chooses to close and open the eyelid.
  • a non-healthy eyelid refers to an eyelid that is not capable of all three types of blinking.
  • the non-healthy eyelid may be subject to a neurological or neuromuscular condition that affects the normal closing or opening of the eyelids, such as Bell’s palsy.
  • Fig. 1 illustrates a schematic of facial muscles that control eyelid movement.
  • the orbicularis oculi muscle is the muscle that closes the eyelids. Accordingly, if the orbicularis oculi muscle is dysfunctional, the eyelid will be unable to close on its own and the eye will dry out.
  • the orbicularis oculi muscle is a flat sheet of fibers that encircles the palpebral aperture spreading out from the eye’s orbital rim.
  • the orbicularis oculi muscle is divided into two concentric parts - the orbital part and the palpebral part.
  • the orbital part overlies the orbital rims.
  • the palpebral part overlies the eyelids.
  • the palpebral part is further divided into a preseptal part and a pretarsal part.
  • the preseptal part is anterior to the orbital septum and the pretarsal part is anterior to the tarsal plate.
  • the deep heads of the pretarsal part muscles e.g., Homer’s muscle
  • the puncta then close, and the tears in the ampullae of the canaliculi are forced medially and sucked into the sac.
  • one way to induce the non-healthy eyelid to close is through electrical stimulation.
  • one may electrically stimulate the orbicularis oculi muscle to cause it to contract and close the eyelid that it controls.
  • the electrical stimulation may be applied in numerous locations around the eye in order to stimulate the orbicularis oculi muscle.
  • Fig. 2 illustrates example locations a through h around the eye where electrical stimulation may be applied.
  • electrical stimulation is particularly applied at locations b and c, as is discussed in more detail below.
  • Fig. 3 illustrates a schematic of an example device 100, according to one aspect of the present disclosure.
  • the example device 100 is configured as a pair of glasses that a person may wear as the person would wear a conventional pair of glasses.
  • the example device 100 may include a front frame 102 that may or may not contain lenses 112.
  • the example device 100 may also include an endpiece 104 that extends out from each side of the front face 102, each endpiece 104 being attached to a temple 106 by a hinge 108.
  • Each temple 106 may rotate at its respective hinge 108 to be substantially parallel to the front frame 102 consistent with a conventional pair of glasses.
  • the temples 106 help the example device 100 remain secured to a wearer’s face such that the example device 100 does not easily fall off the wearer’s face when the wearer moves.
  • the example device 100 may include suitable mechanisms other than the temples 106 for securing the device 100 to a wearer’s face, such as an elastic band that attaches to each side of the device 100 and is placed behind a wearer’s head to hold the device 100 on the wearer’s face.
  • the example device 100 may also include one or more extensions 110 (e.g, two) that house, or are attached to, one or more electrodes 730 (Fig. 7).
  • the one or more extensions 110 protrude from the example device 100 such that the one or more extensions 110, or their respective electrodes 730, contact the device wearer’s face.
  • Fig. 4 shows an example of a person wearing the example device 100 with two extensions 110 contacting the person’s face. Because the one or more extensions 110, or their respective electrodes 730, contact the person’s face, an electrical stimulation may be applied to the person’s facial muscles, such as the orbicularis oculi muscle.
  • the one or more extensions 110 may take other suitable shapes than illustrated in Figs. 3 and 4.
  • Figs. 5A and 5B illustrate two such examples.
  • Fig. 5A illustrates example extensions 510 that are silicon tubes with magnets.
  • Fig. 5B illustrates example extensions 520 that are sheet metal blades.
  • the one or more extensions 110 are configured on the example device 100 such that they contact a person’s face at positions b and c (Fig. 2). For instance, stimulating the person’s orbicularis oculi muscle at positions b and c may induce the optimal contraction of the orbicularis oculi muscle. In other examples, the one or more extensions 110 may be configured on the example device 100 such that they contact a person’s face at other positions around the person’s eye, as illustrated in Fig. 2.
  • the example device 100 may also include a sensor 600 for detecting a healthy eyelid’s movement.
  • the sensor 600 may be any suitable sensor for detecting movement, for example, an infrared (“IR”) sensor. Accordingly, the sensor 600 may be positioned on the example device 100 such that it can detect when a healthy eyelid moves.
  • Fig. 6 illustrates a top view of the example device 100 and a magnified view of one end of the device 100 showing the sensor 600 located near an endpiece 104. The illustrated location of the sensor 600 may enable the sensor 600 to best detect when an eyelid moves while also being out the vision of a person wearing the device.
  • the senor 600 may be located in other suitable positions on the device 100 such that it may detect when a healthy eyelid moves.
  • the sensor 600 may be located on the front frame 102.
  • the sensor 600 may be located on either side of a lens 112, or may be formed integrally with a lens 112.
  • the example device 100 may also include a controller (e.g., processor) in communication with a memory, and a power source (e.g., a battery).
  • the power source may be rechargeable.
  • the controller and memory may, for example, be housed within one or more temples 106 of the example device, and may include wiring connecting the controller to the sensor 600 and the one or more electrodes 730.
  • the controller and memory will be described in more detail in connection with the example system 700 in Fig. 7.
  • the presently disclosed device may have other suitable designs than those illustrated with regard to the front frame 102, the endpieces 104, the hinges 108, and the temples 106 for stylistic purposes.
  • Fig. 7 illustrates an example system 700, according to an aspect of the present disclosure.
  • the example system 700 includes different components that are representative of computational processes, routines, and/or algorithms.
  • the computational processes, routines, and/or algorithms may be specified in one or more instructions stored on a computer readable medium that, when executed by a processor (e.g., controller) of the system 700, cause the system 700 to perform the operations discussed below.
  • a processor e.g., controller
  • all or part of the computational processes, routines, and/or algorithms may be implemented by the CPU 710 and the memory 720.
  • the components of the system 700 may be combined, rearranged, removed, or provided on a separate device or server.
  • the example system 700 includes one or more electrodes 730 and a sensor 600.
  • the system 700 may also include a communication module 740.
  • the sensor 600 may be configured to detect movement and may provide a movement indication 610 upon detecting movement.
  • the sensor 600 may detect movement (e.g., a blink) of a healthy eyelid and provide a movement indication 610 upon detecting the healthy eyelid moving.
  • the CPU 710 may be configured to receive the movement indication 610, and upon receiving the movement indication 610, the CPU 710 may cause the electrodes 730 to apply an electrical stimulation according to electrical stimulation settings 722 stored in the memory 720.
  • the electrodes 730 may apply an electrical stimulation to the orbicularis oculi muscle of a non-healthy eyelid to stimulate the muscle and cause the non-healthy eyelid to move (e.g., blink).
  • the system 700 may, in response to a healthy eyelid moving, cause a non-healthy eyelid to move in sync with the healthy eyelid.
  • the electrical stimulation settings 722 control how the electrical stimulation is applied in order to cause at least a person’s orbicularis oculi muscle to contract.
  • the electrical stimulation settings 722 may require applying periodic stimulus pulses.
  • the electrical stimulation settings 722 may cause the circuit of the system 700 to apply consistent current pulses with a constant voltage through the electrodes 730.
  • the circuit may send current pulses with a constant voltage of 40V such that the voltage on the electrodes 730 is between 15V and 25 V because the rest of the voltage is absorbed by the stimulus circuit.
  • the circuit may send biphasic constant current pulses between 1mA to 5mA.
  • the circuit may send current pulses of 3.2mA.
  • the pulse width of the stimulus pulses is about 400 microseconds (“ps”)
  • the period of the stimulus pulses is about 4 miliseconds (“ms”)
  • the frequency is about 250Hz.
  • the electrical stimulation settings 722 may require 10 periods per stimulus, and a single stimulus therefore takes 40ms. Accordingly, the described electrical stimulation settings 722 may help induce a non-healthy eyelid to move at the same time as a healthy eyelid with minimal or no delay.
  • the electrical stimulation settings 722 may be fixed settings. In other examples, the electrical stimulation settings 722 may be adjustable by the wearer or other party through an external client device 820 (Fig.
  • the electrical stimulation settings 722 may require stimulations with other suitable amounts of voltage, current, pulse widths, pulse periods, and number of periods per stimulus than those described in order to cause at least the orbicularis oculi of a person to contract.
  • the electrical stimulation settings 722 may be adjusted for various stimulation intensities, durations, and/or frequencies.
  • the presently disclosed system may have multiple suitable configurations.
  • the system 700 may be integrated with a pair of glasses or goggles, such as the example device 100.
  • the example device 100 may or may not include any extensions 110.
  • the system 700 may include electrodes 730 that removably attach directly to a person’s face and wirelessly communicate with the sensor 600 and/or a processor (e.g., CPU 710) of the system 700, thus negating the need for the extensions 110.
  • the electrodes 730 may have an adhesive that removably attaches the electrodes 730 to the person’s face.
  • the system 700 may be integrated with a hat or other item worn on the head.
  • the hat or other item may have a sensor 600 on a brim or may include an arm extension for positioning the sensor 600 near a healthy eyelid, and may either include wires connected to electrodes 730 or wireless electrodes 730 such that the electrodes 730 are positioned to stimulate at least the orbicularis oculi muscle of a non-healthy eyelid.
  • the sensor 600 may be integrated with a contact lens worn on an eye with a healthy eyelid to detect when the healthy eyelid moves and the sensor 600 may wirelessly communicate with electrodes 730 positioned to stimulate at least the orbicularis oculi muscle of a non-healthy eyelid.
  • the provided system and device may be capable of communicating with an external client device.
  • the communication module 230 of the example device 100 or example system 700 may be programmed to send and receive information from the external client device.
  • Fig. 8 illustrates an example system 800 in which the example device 100 may communicate with a client device 820, either directly or over a network 810.
  • the example device 100 and the client device 820 may also communicate via a server through the network 810.
  • An example system 700 may communicate with the client device 820 in the same manner as the example device 100.
  • the example device 100 may communicate with the client device 820 directly over a Bluetooth® connection or other direct wireless connection.
  • the Bluetooth® or other direct wireless connection mechanism on the device 100 may be turned off to preserve battery power, avoid unintended connections, etc.
  • Fig. 8 illustrates the client device 820 as a smartphone, however, in other examples the client device 820 may be any suitable type of device including a cellular phone, a tablet computer, a laptop computer, a workstation, smart-eyewear, smartwatch, etc.
  • the client device 820 may include an application (e.g., an App) that may operate in connection with the example device 100 or the server in communication with the example device 100.
  • the application may be in addition to, or replaced by, a website hosted or otherwise provided by the server.
  • people may be able to adjust the electrical stimulation settings 722 stored on their example device 100 or example system 700 from their client device 820 using the App or website.
  • the example device 100 or system 700 may send data to the client device 820 pertaining to how the example device 100 or system 700 is functioning.
  • other suitable information may be exchanged between the example device 100 or system 700 and the client device 820 to enhance the user experience with regard to the provided system and device.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Electrotherapy Devices (AREA)

Abstract

Le système, le dispositif et le procédé selon la présente invention fournissent un moyen commode permettant d'amener une paupière non saine à cligner en réponse à un clignement d'une paupière saine. Le système et le dispositif peuvent comprendre un capteur, une ou plusieurs électrodes, une mémoire et un dispositif de commande en communication avec la mémoire. Le capteur détecte le mouvement d'une paupière et fournit une indication de mouvement en réponse à la détection du mouvement de la paupière. La ou les électrodes peuvent appliquer une stimulation électrique à au moins un muscle orbiculaire. La mémoire peut mémoriser des paramètres de stimulation électrique. Le dispositif de commande, en réponse à la réception d'une indication de mouvement provenant du capteur, peut amener la ou les électrodes à appliquer la stimulation électrique en fonction des paramètres de stimulation électrique.
PCT/EP2019/077128 2019-10-07 2019-10-07 Système, dispositif et procédé permettant d'induire un mouvement de paupière WO2021069058A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/EP2019/077128 WO2021069058A1 (fr) 2019-10-07 2019-10-07 Système, dispositif et procédé permettant d'induire un mouvement de paupière

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Application Number Priority Date Filing Date Title
PCT/EP2019/077128 WO2021069058A1 (fr) 2019-10-07 2019-10-07 Système, dispositif et procédé permettant d'induire un mouvement de paupière

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WO2021069058A1 true WO2021069058A1 (fr) 2021-04-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024031076A3 (fr) * 2022-08-05 2024-02-29 Georgia Tech Research Corporation Dispositif pouvant être porté pour restaurer la fermeture simultanée des paupières destiné aux victimes d'une paralysie faciale partielle par stimulation directe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002102455A1 (fr) * 2001-06-18 2002-12-27 Alfred E. Mann Foundation For Scientific Research Matrice et systeme de stimulation miniatures implantables conçus pour la stimulation de la paupiere
US20110081333A1 (en) * 2010-12-10 2011-04-07 Shantha Totada R Apparatus and system for treatment and prevention of bags under eyes
WO2014110575A1 (fr) * 2013-01-14 2014-07-17 Massachusetts Eye & Ear Infirmary Détection et stimulation de mouvements et d'expressions faciaux

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002102455A1 (fr) * 2001-06-18 2002-12-27 Alfred E. Mann Foundation For Scientific Research Matrice et systeme de stimulation miniatures implantables conçus pour la stimulation de la paupiere
US20110081333A1 (en) * 2010-12-10 2011-04-07 Shantha Totada R Apparatus and system for treatment and prevention of bags under eyes
WO2014110575A1 (fr) * 2013-01-14 2014-07-17 Massachusetts Eye & Ear Infirmary Détection et stimulation de mouvements et d'expressions faciaux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024031076A3 (fr) * 2022-08-05 2024-02-29 Georgia Tech Research Corporation Dispositif pouvant être porté pour restaurer la fermeture simultanée des paupières destiné aux victimes d'une paralysie faciale partielle par stimulation directe

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