<?xml version='1.0' encoding='UTF-8'?><device xmlns='http://www.fda.gov/cdrh/gudid' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'><publicDeviceRecordKey>e76d2eb3-ab7d-4414-a3a2-250b00c0194a</publicDeviceRecordKey><publicVersionStatus>New</publicVersionStatus><deviceRecordStatus>Published</deviceRecordStatus><publicVersionNumber>1</publicVersionNumber><publicVersionDate>2026-05-08</publicVersionDate><devicePublishDate>2026-04-30</devicePublishDate><deviceCommDistributionEndDate xsi:nil="true"/><deviceCommDistributionStatus>In Commercial Distribution</deviceCommDistributionStatus><identifiers><identifier><deviceId>04719872982012</deviceId><deviceIdType>Primary</deviceIdType><deviceIdIssuingAgency>GS1</deviceIdIssuingAgency><containsDINumber xsi:nil="true"/><pkgQuantity xsi:nil="true"/><pkgDiscontinueDate xsi:nil="true"/><pkgStatus xsi:nil="true"/><pkgType xsi:nil="true"/></identifier></identifiers><brandName>QHeart Sensor</brandName><versionModelNumber>QTEOS120U</versionModelNumber><catalogNumber xsi:nil="true"/><dunsNumber>078875059</dunsNumber><companyName>Qt Medical, Inc.</companyName><deviceCount>1</deviceCount><deviceDescription>The QT ECG Disposable Electrode Strip is a self-adhesive, single-use, one-piece integrated ECG electrode meant to use with QT ECG recorder. The design of the prepositioned Electrode Strip gives the user an easy way of applying the collection of electrodes in their correct locations, thereby reducing electrode placement errors.</deviceDescription><DMExempt>false</DMExempt><premarketExempt>true</premarketExempt><deviceHCTP>false</deviceHCTP><deviceKit>false</deviceKit><deviceCombinationProduct>false</deviceCombinationProduct><singleUse>true</singleUse><lotBatch>true</lotBatch><serialNumber>false</serialNumber><manufacturingDate>true</manufacturingDate><expirationDate>true</expirationDate><donationIdNumber>false</donationIdNumber><labeledContainsNRL>false</labeledContainsNRL><labeledNoNRL>true</labeledNoNRL><MRISafetyStatus>MR Unsafe</MRISafetyStatus><rx>true</rx><otc>false</otc><contacts/><gmdnTerms><gmdn><gmdnCode>35035</gmdnCode><gmdnPTName>Electrocardiographic electrode, single-use</gmdnPTName><gmdnPTDefinition>A non-sterile, noninvasive electrical conductor designed to conduct electrical signals, generated by a patient&apos;s heart, from the skin surface to an electrocardiograph (ECG) monitoring device, via an ECG lead wire (not included). It is typically a disk-like electrode that is affixed to the skin with a special adhesive, adhesive tape, or suction mechanism; a conductive gel may be pre-applied and it may include a skin cleaning wipe to assist electrical connection. Electrocardiography is usually performed using a set of electrodes (e.g., 10) connected to appropriate leads and cables. This is a single-use device.</gmdnPTDefinition><implantable>false</implantable><gmdnCodeStatus>Active</gmdnCodeStatus></gmdn></gmdnTerms><productCodes><fdaProductCode><productCode>DRX</productCode><productCodeName>Electrode, Electrocardiograph</productCodeName></fdaProductCode></productCodes><deviceSizes/><environmentalConditions/><sterilization><deviceSterile>false</deviceSterile><sterilizationPriorToUse>false</sterilizationPriorToUse><methodTypes/></sterilization></device>