# US 10,117,607 B2 · Hand-held measuring device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,117,607 B2 - Document ID: US10117607B2 - Status: Granted - Kind: B2 - Application number: 14/763,265 - Filed: 2014-01-24 - Published: 2015-12-17 - Granted: 2018-11-06 - Earliest claimed: 2013-01-25 - Assignees: Nawa Heilmittel GmbH - Applicants: Nawa Heilmittel GmbH - Inventors: Thomas Riesinger - Web page: https://patentgrep.com/patent/US10117607B2 ## CPC - A61B 5/14539: {for measuring pH} - A61B 5/0004: {characterised by the type of physiological signal transmitted} - A61B 5/1455: using optical sensors, e.g. spectral photometrical oximeters - A61B 5/445: {Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore} - A61B 50/30: Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments (for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40) - G01N 21/80: Indicating pH value - A61B 2050/006: {perpendicular to the lid plane, e.g. by a downward movement} - A61B 2560/0418: Pen-shaped housings - A61B 2560/0431: Portable apparatus, e.g. comprising a handle or case - A61B 2560/045: with a separable interface unit, e.g. for communication - A61B 2562/247: Hygienic covers, i.e. for covering the sensor or apparatus during use - G01N 2201/0221: Portable; cableless; compact; hand-held - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - 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) ## Abstract Described is a hand-held measuring device 1 for measuring the pH value of wounds at a measuring point, wherein the hand-held measuring device 1 comprises a housing 2, a removable protective case 5 which at least partially encloses the housing 2, and a detection and evaluation unit constructed of at least two elements 6, 7, 9. The evaluation unit is designed to process the measured signals detected by the detection unit. At least one element 7 of the detection and evaluation unit is arranged in or on the housing 2 and at least one element 6, 9 of the detection and evaluation unit is designed as a component of the protective case 5. ## Claims ### Claim 1 A hand-held measuring device for measuring the pH value of wounds at a measuring point, wherein the hand-held measuring device comprises: a housing, a removable protective case which at least partially encloses the housing, the protective case comprising a circuit; and a detection and evaluation unit constructed of at least two elements, comprising an evaluation unit designed to process measuring signals detected by a detection unit, wherein at least one element of the detection and evaluation unit comprising the detection unit arranged in or on the housing; and at least one element of the detection and evaluation unit is an electrical detection element which is designed as a component of the protective case; wherein the evaluation unit is arranged in or on the housing and comprises a first receiver and/or emitter unit interacting with the circuit, and wherein the electrical detection element is a component of the circuit and the circuit is designed for wireless transmission of a measuring value detected by the electrical detection element to the first receiver and/or emitter unit. ### Claim 2 (depends on 1) The hand-held measuring device according to claim 1, wherein the protective case closes the housing completely and in manner that is sealed off from the surroundings. ### Claim 3 (depends on 1) The hand-held measuring device according to claim 1, wherein the housing consists of a first housing section and a rod-like or probe-like second housing section adjoining the first housing section, wherein the second housing section has a reduced cross section as compared to the first housing section. ### Claim 4 (depends on 3) The hand-held measuring device according to claim 3, wherein the protective case is at least constructed in two parts, of a first protective case section enclosing the first housing section and a second protective case section enclosing the second housing section, wherein the at least one element of the detection and evaluation unit designed as a component of the protective case is designed as a component of the second protective case section. ### Claim 5 (depends on 1) The hand-held measuring device according to claim 1, wherein the at least one element of the detection and evaluation unit designed as a component of the protective case is an optical sensor element, the optical properties of which change in dependence on the pH value at the measuring point, and in that on the housing an opto-electronic unit is provided as an element of the detection and evaluation unit. ### Claim 6 (depends on 1) The hand-held measuring device according to claim 1, wherein an evaluation unit arranged in or on the housing has a contact field with at least one electrical contact for contacting the electrical detection element. ### Claim 7 (depends on 1) The hand-held measuring device according to claim 1, wherein the circuit is designed in the form of a RFID and has at least one antenna structure as well as a microprocessor interacting with the electrical detection element, and in that power is supplied to the microprocessor via a radio-communication signal which can be received by the antenna structure. ### Claim 8 (depends on 1) The hand-held measuring device according to claim 1, wherein on or in the housing a second receiver and emitter unit is provided, wherein the second receiver and emitter unit interacts with an external computer via a data transmission path.