# US 12,007,355 B2 · Stretchable and flexible sensing device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,007,355 B2 - Document ID: US12007355B2 - Status: Granted - Kind: B2 - Application number: 16/747,663 - Filed: 2020-01-21 - Published: 2020-08-06 - Granted: 2024-06-11 - Earliest claimed: 2019-01-31 - Applicants: Kuan-Chien Chou; Boon-Ping Soh - Inventors: Kuan-Chien Chou; Boon-Ping Soh - Web page: https://patentgrep.com/patent/US12007355B2 ## CPC - G01N 27/4146: {involving nanosized elements, e.g. nanotubes, nanowires} - A61B 5/28: for electrocardiography [ECG] - A61B 5/296: for electromyography [EMG] - A61B 5/297: for electrooculography [EOG]: for electroretinography [ERG] - H05K 1/0283: {Stretchable printed circuits} - H05K 1/167: {incorporating printed resistors} - H05K 1/189: characterised by the use of flexible or folded printed circuits - A61B 5/02438: {with portable devices, e.g. worn by the patient} - A61B 5/1038: {Measuring plantar pressure during gait} - A61B 5/6804: {Garments; Clothes} - A61B 5/6807: {Footwear} - A61B 2562/0261: Strain gauges - A61B 2562/12: Manufacturing methods specially adapted for producing sensors for in-vivo measurements - H05K 1/0218: {by printed shielding conductors, ground planes or power plane (H05K1/0236 takes precedence)} - H05K 3/12: using {thick film techniques, e.g.} printing techniques to apply the conductive material {or similar techniques for applying conductive paste or ink patterns} - H05K 2201/05: Flexible printed circuits [FPCs] - H05K 2201/10151: Sensor - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A stretchable and flexible sensing device includes a first elastic membrane, a first strain sensor and a processing unit. The first elastic membrane has a first surface, a second surface and a plurality of electrode contacts. The first surface and the second surface are disposed of opposite to each other and the electrode contacts are disposed on the first surface. One of the electrode contacts is as ground terminal. The first strain sensor is disposed on the first surface by printing technology so as to electrically connect to the electrode contacts. The processing unit is electrically connected to the electrode contacts. The processing unit operates according to a stretch resistance value of one of the first strain sensor. ## Claims ### Claim 1 A stretchable and flexible sensing device, comprising: a first elastic membrane, which has a first surface, a second surface and a plurality of electrode contacts, the first surface and the second surface are disposed opposite to each other, the electrode contacts are located on the first surface, one of the electrode contacts is a ground terminal, and the first elastic membrane is combined with an object by hot pressing that can wear on a human body and touch the human skin; a first strain sensor, which is arranged on the first surface of the first elastic membrane by printing technology and electrically connected to the electrode contacts respectively, wherein the material of the first strain sensor is selected from the polyvinylidene fluoride (PVDF), fluorinated trifluorinated polyethylene (PVDF-TrFE), carbon nanotubes, graphene ink, or silver nanoparticles ink; and a processing unit, which is electrically connected to the electrode contacts, and the processing unit is to calculate and process according to a stretch resistance value of the first strain sensor, wherein the combination of the first elastic membrane and the first strain sensor is stretchable and flexible, wherein the first elastic membrane comprises a first sub-substrate and a second sub-substrate, which are stacked, and the melting point of the first sub-substrate is higher than the melting point that of the second sub-substrate, and wherein the second sub-substrate of the first elastic membrane is combined with the objects that can touch the human skin. ### Claim 2 (depends on 1) The stretchable and flexible sensing device of claim 1, further comprising: a second elastic membrane, which has a third surface and a fourth surface are disposed opposite to each other, and is bonded to the first surface of the first elastic membrane by the fourth surface; an electromagnetic interference prevention unit, which is disposed on the third surface of the second elastic membrane to electrically connected to the ground terminal of the first elastic membrane, and covers the relative position of the first strain sensor. ### Claim 3 (depends on 2) The stretchable and flexible sensing device of claim 2, wherein the first elastic membrane and the second elastic membrane is bonded by a liquid adhesive or a solid adhesive. ### Claim 4 (depends on 2) The stretchable and flexible sensing device of claim 2, wherein the first elastic membrane and the second elastic membrane is bonded by hot pressing. ### Claim 5 (depends on 2) The stretchable and flexible sensing device of claim 2, further comprising: a flexible circuit board, which is connected between the first elastic membrane and the second elastic membrane, to establish an electrical path between the electromagnetic interference prevention unit and the ground terminal. ### Claim 6 (depends on 5) The stretchable and flexible sensing device of claim 5, further comprising: a fixing component, which is located corresponding to the electrode contacts, and is threaded through the flexible circuit board to fix the processing unit so as to electrically connect to the electrode contacts. ### Claim 7 (depends on 6) The stretchable and flexible sensing device of claim 6, wherein the fixing component is a rubber ring, and the processing unit is fixed in the rubber ring. ### Claim 8 (depends on 2) The stretchable and flexible sensing device of claim 2, further comprises a protective film, which is bonded with a third surface of the second elastic membrane. ### Claim 9 (depends on 8) The stretchable and flexible sensing device of claim 8, wherein the protective film and the second elastic membrane is bonded by a liquid adhesive or a solid adhesive. ### Claim 10 (depends on 8) The stretchable and flexible sensing device of claim 8, wherein the protective film and the second elastic membrane is bonded by hot pressing. ### Claim 11 (depends on 1) The stretchable and flexible sensing device of claim 1, wherein the first strain sensor is disposed on the first sub-substrate. ### Claim 12 (depends on 11) The stretchable and flexible sensing device of claim 11, further comprises a second strain sensor, which is located between the first sub-substrate and the second sub-substrate by printing technology. ### Claim 13 (depends on 12) The stretchable and flexible sensing device of claim 12, wherein the first strain sensor and the second strain sensor are in a linear arrangement, respectively. ### Claim 14 (depends on 12) The stretchable and flexible sensing device of claim 12, wherein the arrangement of the first strain sensor and the second strain sensor form a net. ### Claim 15 (depends on 1) The stretchable and flexible sensing device of claim 1, wherein the first strain sensor is in a linear arrangement, and one end of each line is electrically connected to the ground terminal of the electrode contacts. ### Claim 16 (depends on 1) The stretchable and flexible sensing device of claim 1, wherein the first strain sensor comprises a stretch resistance component.