(270 days)
The TTP™ is a non-sterile temperature monitoring system intended to measure and monitor core body temperature of patients of all ages, by applying a sensor unit on the forehead.
The TTP™ system monitors the body core temperature through continuous measurements of the patient. The system is non-sterile and comprised of a disposable Sensor Unit, attached to the patient temple, and connected to a Monitor Connecting Unit which is connected to a power supply and to any YSI-400 input vital signs monitor, through which, the patient temperature is presented. The MCU is able to present the patient temperature as a standalone unit.
The provided text describes the Medisim Temple Touch Pro™ (TTP™) – Temperature monitoring system, a clinical electronic thermometer. Here's a breakdown of the acceptance criteria and the study that proves the device meets them:
1. Table of Acceptance Criteria and Reported Device Performance
| Acceptance Criteria | Reported Device Performance |
|---|---|
| Accuracy | ± 0.2°C |
| Temperature Measurement Range | 25°C - 45°C (77°F - 113°F) |
| Bench Testing | Passed all bench tests successfully according to ASTM E-1112-00 |
| Clinical Study Goal | No statistically significant difference between TTP™ and invasive thermometers (compared to various reference measurements across diverse populations) |
| Software Validation | Fully functional |
2. Sample Size Used for the Test Set and Data Provenance
- Sample Size for Clinical Study (Test Set): 181 subjects (95 males, 86 females) with a total of 4591 temperature samples.
- Data Provenance: The document does not explicitly state the country of origin for the clinical study data. It mentions the applicant is Medisim Ltd. based in Neve Ilan, Israel, so it's likely the study was conducted in Israel or a closely associated region. The study was conducted according to GCP standards, implying a prospective and controlled approach.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
The document does not specify the number or qualifications of experts used to establish the ground truth for the clinical study. It states that the TTP™ measurements were compared to "various reference measurements" from "other invasive thermometers," implying that these reference measurements served as the ground truth.
4. Adjudication Method for the Test Set
The document does not describe any specific adjudication method for the test set. The clinical study aimed to show "no statistically significant difference" between the TTP™ and reference thermometers, suggesting a direct comparison without an independent adjudication process for each reading.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done, If So, What Was the Effect Size of How Much Human Readers Improve with AI vs Without AI Assistance
This is not applicable as the device is a temperature monitoring system and not an AI-assisted diagnostic tool that requires human reader interpretation. No MRMC study was mentioned or performed.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done
Yes, a standalone performance evaluation was done through the clinical study. The device's accuracy and performance were assessed by comparing its measurements directly to established reference thermometers. The study did not involve human interpretation or assistance in the measurement process itself, beyond the initial application of the sensor.
7. The Type of Ground Truth Used (Expert Consensus, Pathology, Outcomes Data, etc.)
The ground truth for the clinical study (test set) was based on measurements from "other invasive thermometers." These invasive thermometers are considered the gold standard for core body temperature measurement.
8. The Sample Size for the Training Set
The document does not explicitly mention a separate "training set" or its sample size. The description focuses on validation and performance testing. For a device like a thermometer, the "training" (calibration, algorithm development) would likely occur during the device development phase, and the provided clinical study serves as a final validation (test set).
9. How the Ground Truth for the Training Set Was Established
As no specific training set is mentioned in the document, details on how its ground truth was established are not available. It's inferred that the device's measurement algorithms were developed and refined against established temperature measurement standards and reference methods during its engineering and design phases.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
October 20, 2015
Medisim, Ltd. Mr. Avi Ben Yaish QA Manager G.G. Communication Center Neve Ilan ISRAEL 90850
Re: K150160
Trade/Device Name: Temple Touch Pro™ (TTP™) – Temperature monitoring system Regulation Number: 21 CFR 880.2910 Regulation Name: Clinical electronic thermometer Regulatory Class: II Product Code: FLL Dated: September 6, 2015 Received: September 9, 2015
Dear Mr. Ben Yaish:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled. "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Tina
Kiang -S
for Erin I. Keith, M.S. Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Indications for Use
510(k) Number (if known) K150160
Device Name
Temple Touch Pro™ (TTPTM) - Temperature monitoring system
Indications for Use (Describe)
The TTP™ is a non-sterile temperature monitoring system intended to measure and monitor core body temperature of patients of all ages, by applying a sensor unit on the forehead.
| Type of Use (Select one or both, as applicable) |
|---|
| ------------------------------------------------- |
Prescription Use (Part 21 CFR 801 Subpart D)
|X | Over-The-Counter Use (21 CFR 801 Subpart C)
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Image /page/3/Picture/0 description: The image shows the logo for Medisim. The logo features a stylized "M" with a green line that resembles a heartbeat. The text "Medisim" is written in blue, and below it, the words "Non Invasive Thermometry" are written in a smaller font size.
SECTION 5 - 510(k) Number K150160 Summary
Medisim Ltd.
Temple Touch Pro™ (TTP™) - Temperature Monitoring System
Applicants Name:
Medisim Ltd. G.G. Communication Center Neve Ilan 90850, Israel Tel: 972-2-9950-619 Fax: 972-2-579-1926
Contact Person:
Avi Ben Yaish aviby@medisim.co.il
Date Prepared: 20 OCT 2015
Trade Name of the device subject to this submission:
Temple Touch Pro™ (TTP™) - Temperature Monitoring System
Common name: Clinical, Electronic thermometer
Classification Name: Clinical Electronic Thermometer
Classification: Clinical Electronic Thermometers are class II devices, 20 CFR 880.2910.
Classification Panel: General Hospital (Part 880 in the 21 CFR)
Indication for Use:
The TTP™ is a non-sterile temperature monitoring system intended to measure and monitor core body temperature of patients of all ages, by applying a sensor unit on the forehead.
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Image /page/4/Picture/0 description: The image contains the logo for Medisim, a company that specializes in non-invasive thermometry. The logo features a stylized "M" with a plus sign at the bottom left. The text "Medisim" is written in a blue sans-serif font to the right of the "M" symbol. Below the company name, the words "Non Invasive Thermometry" are written in a smaller font size.
Description of the device
The TTP™ system monitors the body core temperature through continuous measurements of the patient. The system is non-sterile and comprised of a disposable Sensor Unit, attached to the patient temple, and connected to a Monitor Connecting Unit which is connected to a power supply and to any YSI-400 input vital signs monitor, through which, the patient temperature is presented. The MCU is able to present the patient temperature as a standalone unit.
Statement of substantial equivalence:
The TTP™ is substantially equivalent to 3M SpotOn Temperature monitoring system (Arizant healthcare Inc.) cleared under K120412.
For convenience, the various similarities and differences are presented in the substantial equivalence comparison table and summarized below:
| TTPTM | 3M SpotOn (Arizant healthcare Inc.) | |
|---|---|---|
| 510(k) number | K120412 | |
| Manufacturer | Medisim Ltd. | 3M (Arizant healthcare Inc.) |
| Device name | Temple Touch ProTM | SpotOn |
| Intended use | Measure and monitor core bodytemperature of patients of all ages, byapplying a sensor unit on theforehead. | Measure, monitor, and trend bodytemperature of adult and pediatricpatients. |
| Components | Sensor Unit (SU) Sensor Unit Cable Monitor Connecting Unit (MCU) Power Supply | Temperature Sensor Sensor Cable Control Unit Power Supply |
| MeasurementTechnology | TTP TM system uses heat fluxtechnology to measure the patient'sbody core temperature.The Sensor Unit is attached to theskin above the temporal artery. Thesystem utilizes double layer sensor tomeasures the heat flux and derive thecore temperature. Once thetemperature is calculated, the TTP | The 3M SpotOn system uses zero-heat-flux thermometry to measure thepatient's core temperature.The 3M SpotOn system warms thesensor (attached to the skin), creatingan isothermal zone under the sensor.Once equilibrated to the coretemperature, a zero-heat-fluxcondition is established. When the |
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Image /page/5/Picture/0 description: The image shows the Medisim logo. The logo features a stylized green "M" with a line extending from the bottom left corner. To the right of the "M" is the word "edisim" in blue. Below the word "edisim" is the phrase "Non Invasive Thermometry" in a smaller font.
| displays a noninvasive measurementof the patient's core temperature. | temperature sensor reachesequilibrium with the patient's coretemperature, the 3M SpotOn displaysa noninvasive measurement of thepatient's core temperature. | |
|---|---|---|
| Output tohospitalmonitor | compatible with YSI400 | compatible with YSI400 |
| Sensor/s | Thermistor | Thermistor |
| Measurementlocation | Patient's temple area of the forehead | Patient's forehead above the orbitalridge |
| Temperaturemeasurementrange | 25°C - 45°C (77°F - 113°F) | 25°C - 43°C (77°F - 109°F) |
| Accuracy | $\pm$ 0.2°C | $\pm$ 0.2°C |
| Reusable/Disposable | Disposable ,non-sterile | Disposable ,non-sterile |
The similarities and differences between TTP™ device and its predicate:
The devices are similar in:
- . Intended use (measure & monitor body temperature)
- System components (sensor, control/connecting unit, cables, power supply) .
- Technological characteristics (incorporating heat conduction & heat flux method ) .
- . Sensor type (thermistor)
- Place of measurement (both TTP's and 3M SpotOn's sensors are placed on the . forehead skin surface).
- . Both systems transmitting the output to any YSI400 compatible patient monitor and are also able to present the temperature on their' standalone display units.
The devices are different in:
| TTP™ | 3M SpotOn (Arizant healthcare Inc.) | |
|---|---|---|
| Temperaturedeterminationprincipal | Heat flux from the tissue, to thesensor is measured and used to,calculate (determine) the bodytemperature. | Applying zero-heat flux principal bylocally heating the tissue at themeasuring site, is used to determinethe body temperature. |
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Image /page/6/Picture/0 description: The image shows the Medisim logo. The logo features a stylized green "M" with a plus sign on the left side. The text "edisim" is in blue, and below it, the words "Non Invasive Thermometry" are in a smaller font size.
Non-Clinical and Clinical Device Testing (Software Validation, Bench & Clinical test) The TTP was tested and evaluated in order to fully validate its performance:
- A. Software Validation Tests
- B. Performance testing :
-
- Bench testing according to ASTM E-1112-00
-
- Clinical testing through a clinical study according to ISO80601-2-56 .
A. Software Validation:
The software was validated to assure the full functionality of the TTP.
The device software was validated successfully as device is fully function.
B. Performance testing:
B. 1. Bench testing
Bench testing was performed in accordance to ASTM E-1112-0.0 The device passed all bench tests successfully as it withstands acceptance criteria for each and every bench test performed.
B.2 Clinical Study
This clinical trial was performed in compliance with ISO 80601-2-56 and GCP standards.
The purpose of the clinical study was to demonstrate there is no statistically significant difference between temperatures measured by Temple Touch Pro™ and by other invasive thermometers.
In order to achieve this goal the trial was conducted among various populations (different age groups, genders and operations) and compared to various reference measurements.
Subjects were 95 males and 86 females in the ages 0-73 years old (median age was 4), Total subjects were 181, and total samples of 4591.
There were no observations or reports of adverse effects. The TTP™ was found to be as reliable as other clinical thermometers.
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Image /page/7/Picture/0 description: The image contains the Medisim logo. The logo features the word "Medisim" in a combination of teal and blue colors, with a stylized "M" that resembles a medical graph. Below the word "Medisim" is the phrase "Non Invasive Thermometry" in a smaller font size.
The compliance of the new device and the predicate device has been assessed and validated against the standards below:
- IEC60601-1(2005, 3 Ed) Medical electrical equipment Part 1: . General requirements for basic safety and essential performance. IEC60601-1-2 (2007, 3 Ed) Medical electrical equipment - Collateral standard: Electromagnetic compatibility - Requirements and tests.
- ISO 14971(2007, 2 Ed) Medical devices- Application of risk management to . medical devices.
- ISO 10993-10, Biological evaluation of medical devices, Part 10: Tests for . irritation and skin sensitization.
- ISO 10993-5, Biological evaluation of medical devices Part 5: Tests for ● in vitro cytotoxicity.
- . ASTM E 1112-00 (2006) 3 RD Electronic thermometer for intermittent determination of patient temperature.
- . ISO 80601-2-56:1ST 2009 Particular requirements for basic safety and essential performance of clinical thermometers for body temperature measurement.
- . EN 12470-4:2009-11 - Performance of electrical thermometers for continuous measurement.
Conclusion:
The subject product was found substantially equivalent to the legal predicate device based on the results from the performance testing and the clinical investigation.
§ 880.2910 Clinical electronic thermometer.
(a)
Identification. A clinical electronic thermometer is a device used to measure the body temperature of a patient by means of a transducer coupled with an electronic signal amplification, conditioning, and display unit. The transducer may be in a detachable probe with or without a disposable cover.(b)
Classification. Class II (performance standards). The device is exempt from the premarket notification procedures in part 807, subpart E of this chapter, subject to the limitations in § 880.9 and the following conditions for exemption:(1) Device is not a clinical thermometer with telethermographic functions;
(2) Device is not a clinical thermometer with continuous temperature measurement functions; and
(3) Appropriate analysis and testing (such as that outlined in the currently FDA-recognized editions, as appropriate, of ISO 80601-2-56, “Medical electrical equipment—Part 2-56: Particular requirements for basic safety and essential performance of clinical thermometers for body temperature measurement,” or ASTM E1965, “Standard Specification for Infrared Thermometers for Intermittent Determination of Patient Temperature,” or ASTM E1112, “Standard Specification for Electronic Thermometer for Intermittent Determination of Patient Temperature,” or ASTM E1104, “Standard Specification for Clinical Thermometer Probe Covers and Sheaths”) must validate specifications and performance of the device.