INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIP0 I PCT ~~ll~~~~~~~~ 011101010VIIIOH olo olo miloon n Imo ow (10) International Publication Number WO 2018/176005 Al (51) International Patent Classification: A61B 8/06 (2006.01) A61B 5/03 (2006.01) (21) International Application Number: PCT/US2018/024204 (22) International Filing Date: 23 March 2018 (23.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/476,638 24 March 2017 (24.03.2017) US (71) Applicant: BURL CONCEPTS, INC. [US/US]; 11545 Sorrento Valley Road, Suite 312, San Diego, CA 92121 (US). (72) Inventors: DOYLE, Thomas, Francis; 4408 Osprey Street, San Diego, CA 92107 (US). HOELSCHER, Thi- lo; 3060 6th Avenue, Apt. 24, San Diego, CA 92103 (US). BRAILEAN, James; 11545 Sorrento Valley Road, Suite 312, San Diego, CA 92121 (US). DIRNBACHER, Maximillian; 11545 Sorrento Valley Road, Suite 312, San Diego, CA 92121 (US). VOLE, Arne; 11545 Sorrento Val- ley Road, Suite 312, San Diego, CA 92121 (US). BAN- HAM, Mark; 11545 Sorrento Valley Road, Suite 312, San Diego, CA 92121 (US). SIMMA, Balaji; 11545 Sorren- to Valley Road, Suite 312, San Diego, CA 92121 (US). TOLA, Jeffry; 335 Colburn Road, Canterbury, CT 06331 (US). (74) Agent: FINE, Isaac, M.; KPPB LLP, 2190 S. Towne Cen- tre Place, Suite 300, Anaheim, CA 92806 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (54) Title: PORTABLE ULTRASOUND DEVICE 100 110 130 O O N 00 O N C FIG. 1 (57) : Systems and methods for stroke detection in accordance with embodiments of the invention are illustrated. One embod- iment includes a system for detecting strokes, including a processor, a first ultrasound transmitter located on a patient's head in com- munication with the processor, a first ultrasou