# US 11,992,313 B2 · Analyte monitoring device and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,313 B2 - Document ID: US11992313B2 - Status: Granted - Kind: B2 - Application number: 16/411,702 - Filed: 2019-05-14 - Published: 2019-09-12 - Granted: 2024-05-28 - Earliest claimed: 2010-04-16 - Assignees: Abbott Diabetes Care Inc. - Applicants: Abbott Diabetes Care Inc. - Inventors: Udo Hoss; Benjamin J. Feldman; Zenghe Liu; Hyun Cho; Benjamin M Rush - Web page: https://patentgrep.com/patent/US11992313B2 ## CPC - A61B 5/1473: invasive, e.g. introduced into the body by a catheter - A61B 5/14532: {for measuring glucose, e.g. by tissue impedance measurement} - A61B 5/7275: {Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor} - A61B 5/7405: {using sound} - A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)} - A61B 5/7455: {characterised by tactile indication, e.g. vibration or electrical stimulation} - A61B 5/1451: {for interstitial fluid} - A61B 5/1468: using chemical or electrochemical methods, e.g. by polarographic means - A61B 2560/0252: using ambient temperature - A61B 2560/0443: Modular apparatus - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract Method and system for determining real time analyte concentration including an analyte sensor having a portion in fluid contact with an interstitial fluid under a skin layer, an on-body electronics including a housing coupled to the analyte sensor and configured for positioning on the skin layer, the on-body electronics housing including a plurality of electrical contacts , on the housing; and a data analysis unit having a data analysis unit housing and a plurality of probes , on the housing. Each of the probes configured to electrically couple to a respective electrical contact when the data analysis unit is positioned in physical contact with the on-body electronics. The one or more signals on the probes correspond to one or more of a substantially real time monitored analyte concentration level (MACL), MACL over a predetermined time period, or a rate of change of the MACL, or combinations thereof, are provided. ## Claims ### Claim 1 An apparatus comprising: sensor electronics configured to generate signals corresponding to analyte concentration levels; an analyte sensor configured for contact with a body fluid, wherein the analyte sensor comprises a first electrode and a second electrode, and wherein the analyte sensor is coupled to the sensor electronics; and an on-body unit comprising a housing, wherein the sensor electronics and the analyte sensor are at least partially arranged within the housing, and wherein the housing comprises a first electrical contact, a second electrical contact, and a third electrical contact, wherein the first electrical contact, the second electrical contact, and the third electrical contact are concentrically positioned on an external surface of the housing of the on-body unit, the third electrical contact having a radius that is greater than a radius of the first electrical contact, wherein the first electrical contact is coupled to a first node in the sensor electronics, the second electrical contact is coupled to a second node in the sensor electronics, and the third electrical contact is coupled to a third node in the sensor electronics, and wherein the first node is coupled to the first electrode and the third node is coupled to the second electrode. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the sensor electronics includes a first resistor-capacitor (RC) pair in series with a second RC pair, wherein the first RC pair is coupled between the first node and the second node, and wherein the second RC pair is coupled between the second node and the third node. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the first electrical contact is located between the second electrical contact and the third electrical contact. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the first electrical contact, the second electrical contact, and the third electrical contact are each ring-shaped. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the analyte sensor is a self-powered sensor. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the apparatus is configured to provide analyte information to a data analysis unit when the data analysis unit is electrically coupled to the first electrical contact, the second electrical contact, and the third electrical contact. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the first electrical contact, the second electrical contact, and the third electrical contact are configured to provide analyte information. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the first electrical contact, the second electrical contact, and the third electrical contact are configured to electrically couple to probes on a data analysis unit to provide the analyte information to the data analysis unit. ### Claim 9 A method comprising: contacting an analyte sensor to a body fluid, the analyte sensor forming a portion of an apparatus, the apparatus comprising: sensor electronics configured to generate signals corresponding to analyte concentration levels, the analyte sensor, wherein the analyte sensor comprises a first electrode and a second electrode, and wherein the analyte sensor is coupled to the sensor electronics, and an on-body unit comprising a housing, wherein the sensor electronics and the analyte sensor at at least partially arranged within the housing, and wherein the housing comprises a first electrical contact, a second electrical contact, and a third electrical contact, wherein the first electrical contact is coupled to a first node in the sensor electronics, the second electrical contact is coupled to a second node in the sensor electronics, and a third electrical contact is coupled to a third node in the sensor electronics, wherein the first node is coupled to the first electrode and the third node is coupled to the second electrode, wherein the first electrical contact, the second electrical contact, and the third electrical contact are concentrically positioned on an external surface of the housing of the on-body unit, the third electrical contact having a radius that is greater than a radius of the first electrical contact. ### Claim 10 (depends on 9) The method of claim 9, wherein the sensor electronics includes a first resistor-capacitor (RC) pair in series with a second RC pair, wherein the first RC pair is coupled between the first node and the second node, and wherein the second RC pair is coupled between the second node and the third node. ### Claim 11 (depends on 9) The method of claim 9, wherein the first electrical contact is located between the second electrical contact and the third electrical contact. ### Claim 12 (depends on 9) The method of claim 9, wherein the first electrical contact, the second electrical contact, and the third electrical contact are each ring-shaped. ### Claim 13 (depends on 9) The method of claim 9, wherein the analyte sensor is a self-powered sensor. ### Claim 14 (depends on 9) The method of claim 9, further comprising: providing, by the apparatus, analyte information to a data analysis unit when the data analysis unit is electrically coupled to the first electrical contact, the second electrical contact, and the third electrical contact. ### Claim 15 (depends on 9) The method of claim 9, further comprising: providing, using the first electrical contact, the second electrical contact, and the third electrical contact analyte information. ### Claim 16 (depends on 9) The method of claim 9, further comprising: coupling the first electrical contact, the second electrical contact, and the third electrical contact to probes on a data analysis unit; and providing, using the first electrical contact, the second electrical contact, and the third electrical contact, analyte information to the data analysis unit when the first electrical contact, the second electrical contact, and the third electrical contact are coupled to the probes on the data analysis unit. ### Claim 17 A system comprising: an apparatus comprising: sensor electronics configured to generate signals corresponding to analyte concentration levels; an analyte sensor configured for contact with a body fluid, wherein the analyte sensor comprises a first electrode and a second electrode, and wherein the analyte sensor is coupled to the sensor electronics; and an on-body unit comprising a housing, wherein the sensor electronics and the analyte sensor are at least partially arranged with the housing, wherein the housing comprises a first electrical contact, a second electrical contact, and a third electrical contact, wherein the first electrical contact is coupled to a first node in the sensor electronics, the second electrical contact is coupled to a second node in the sensor electronics, and the third electrical contact is coupled to a third node is the sensor electronics, and wherein the first node is coupled to the first electrode and the third node is coupled to the second electrode; and a data analysis unit configured to receive and display analyte information when the data analysis unit is electrically coupled to the first electrical contact, the second electrical contact, and the third electrical contact, wherein the first electrical contact, the second electrical contact, and the third electrical contact are concentrically positioned on an external surface of the housing of the on-body unit, the third electrical contact having a radius that is greater than a radius of the first electrical contact.