US 12,220,376 B2
Sensory band for obstacle detection in the visual field of a user with visual impairment
Silvana Nicole Herrera Leiva, Talca (CL); and Jorge Andrés Cartes Sanhueza, Talca (CL)
Assigned to Silvana Nicole Herrera Leiva, Talca (CL); and UNIVERSIDAD DE TALCA, Talca (CL)
Appl. No. 18/016,323
Filed by UNIVERSIDAD DE TALCA, Talca (CL); and Silvana Nicole Herrera Leiva, Talca (CL)
PCT Filed Jul. 14, 2021, PCT No. PCT/CL2021/050063
§ 371(c)(1), (2) Date Jan. 13, 2023,
PCT Pub. No. WO2022/011488, PCT Pub. Date Jan. 20, 2022.
Claims priority of application No. 1870-2020 (CL), filed on Jul. 14, 2020.
Prior Publication US 2023/0285220 A1, Sep. 14, 2023
Int. Cl. G02C 5/00 (2006.01); A61H 3/06 (2006.01); G01S 15/42 (2006.01)
CPC A61H 3/061 (2013.01) [G01S 15/42 (2013.01); A61H 2003/063 (2013.01); A61H 2201/165 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A sensory band (1) for obstacle detection in a visual field of a user, characterized in that it comprises:
a frame having a curved portion (11) and two arched arms (12a, 12b) connected to said curved portion (11);
two antennas (13a, 13b), each of said antennas (13a, 13b) connected in its upper front portion to a corresponding arched arm of said two arched arms (12a, 12b);
two ultrasonic transducers (14a, 14b), each of said ultrasonic transducers (14a, 14b) positioned at an end of a corresponding antenna of said two antennas (13a, 13b), each of said ultrasonic transducers (14a, 14b) comprising an ultrasound transmitter and an ultrasound receiver, and each of said ultrasonic transducers (14a, 14b) is located in front of an eyeball of the user;
a first vibrator (15a) and a second vibrator (15b), each of them positioned in a corresponding arched arm of said two arched arms (12a, 12b), and a third vibrator (15c) positioned in a back central area of said curved portion (11) of the frame; and
a microcontroller (16) operatively connected to said ultrasonic transducers (14a, 14b) and to said first vibrator, second vibrator, and third vibrator (15a, 15b, 15c);
wherein said microcontroller (16) is configured to:
a) transmit an ultrasound signal by means of the transmitters of said ultrasonic transducers (14a, 14b);
b) detect a signal reflected in an obstacle by means of the receivers of said ultrasonic transducers (14a, 14b);
c) obtain a characteristic of said reflected signal; and
d) vibrate said vibrators (15a, 15b, 15c), wherein the vibration of each of said vibrators (15a, 15b, 15c) depends on said characteristic of said reflected signal.