K Number
K102383
Device Name
MICRODOT & MICRODOT XTRA
Date Cleared
2012-01-27

(522 days)

Product Code
Regulation Number
862.1345
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdparty
Intended Use
The microdot 9 Home Blood Glucose Monitoring System is intended for self testing outside the body (in vitro diagnostic use only), by people with diabetes at home as an aid to monitor the effectiveness of diabetes control. It is intended for "single patient-home use" only and should not be shared. It should be used only for testing fresh capillary whole blood samples from a fingerstick or palm for glucose (sugar). Alternate site testing should be done only during steady-state times (when glucose is not changing rapidly). It is not intended for use on neonates or in the diagnosis of or screening for diabetes mellitus. The system consists of the microdot® Home Blood Glucose meter, microdot® Home Test Strips and microdot® Control solutions. microdot® Home Test Strips The microdot® Home Test strips are intended for the quantitative measurement of glucose in fresh capillary whole blood from a fingerstick or palm.
Device Description
The microdot® Home Blood Glucose Monitoring System consists of the microdot® Home Blood Glucose Meter, microdote Home Test Strips, microdot Control Solutions and a commercially available (510(k) cleared) lancing device and lancets. A clear cap is provided with the lancing device for alternate site testing on the palm. microdote Home Blood Glucose Monitoring System is for a single patient use only. The meter and lancing device must not be shared with anyone. microdot® Home is an auto code system. The meter turns on upon insertion of the strip, a blood sample from the finger or palm is applied to the test strip and after 10 seconds, the plasma glucose result is displayed on the screen in mg/dL only. microdot Home Blood Glucose Monitoring System is substantially equivalent in form, firmware, fundamental scientific technology and specifications as the predicate system, microdot® Xtra Blood Glucose Monitoring System. It relies on quantitative electrochemical biosensor technology to measure current generated on disposable test strips. The strip remains unchanged since the last submission approval, microdot® Xtra Blood Glucose Monitoring System (k083273). The Test Strip manufacturing and performance characteristics are unchanged. The test strips are designed to quantitatively measure glucose in fresh capillary blood from the fingertip by persons with diabetes.
More Information

microdot® Xtra Blood Glucose Monitoring System, 510(k) Number:K083273, microdot® Blood Glucose Monitoring System, 510(k) Number :K070524

Not Found

No
The document describes a standard electrochemical biosensor technology for glucose measurement and does not mention any AI or ML components.

No.

The device is an in vitro diagnostic (IVD) device used for monitoring blood glucose levels, not for treating a condition or disease.

Yes

The device is explicitly stated as an "in vitro diagnostic use only" system intended to aid in monitoring the effectiveness of diabetes control, which falls under the definition of a diagnostic device.

No

The device description explicitly states that the system consists of a blood glucose meter, test strips, control solutions, and a lancing device, all of which are hardware components. While the meter likely contains software, the system is not solely software.

Yes, this device is an IVD (In Vitro Diagnostic).

The Intended Use statement explicitly states: "The microdot 9 Home Blood Glucose Monitoring System is intended for self testing outside the body (in vitro diagnostic use only)..."

This directly identifies the device as an in vitro diagnostic.

N/A

Intended Use / Indications for Use

The microdot 9 Home Blood Glucose Monitoring System is intended for self testing outside the body (in vitro diagnostic use only), by people with diabetes at home as an aid to monitor the effectiveness of diabetes control. It is intended for "single patient-home use" only and should not be shared. It should be used only for testing fresh capillary whole blood samples from a fingerstick or palm for glucose (sugar). Alternate site testing should be done only during steady-state times (when glucose is not changing rapidly). It is not intended for use on neonates or in the diagnosis of or screening for diabetes mellitus.

The system consists of the microdot® Home Blood Glucose meter, microdot® Home Test Strips and microdot® Control solutions.

microdot® Home Test Strips
The microdot® Home Test strips are intended for the quantitative measurement of glucose in fresh capillary whole blood from a fingerstick or palm.

Product codes (comma separated list FDA assigned to the subject device)

NBW, LFR

Device Description

The microdot® Home Blood Glucose Monitoring System consists of the microdot® Home Blood Glucose Meter, microdote Home Test Strips, microdot Control Solutions and a commercially available (510(k) cleared) lancing device and lancets. A clear cap is provided with the lancing device for alternate site testing on the palm. microdote Home Blood Glucose Monitoring System is for a single patient use only. The meter and lancing device must not be shared with anyone.

microdot® Home is an auto code system. The meter turns on upon insertion of the strip, a blood sample from the finger or palm is applied to the test strip and after 10 seconds, the plasma glucose result is displayed on the screen in mg/dL only.

microdot Home Blood Glucose Monitoring System is substantially equivalent in form, firmware, fundamental scientific technology and specifications as the predicate system, microdot® Xtra Blood Glucose Monitoring System. It relies on quantitative electrochemical biosensor technology to measure current generated on disposable test strips.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

fingerstick or palm

Indicated Patient Age Range

Not intended for use on neonates.

Intended User / Care Setting

self testing outside the body (in vitro diagnostic use only), by people with diabetes at home

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Comparison Studies
Alternate Site Testing at Palm
A consumer study was performed with 152 diabetics testing themselves both at finger and alternate site and healthcare professionals testing at finger only to see if the results obtained at the alternate site is comparable with the finger. The diabetics obtained the samples and carried out the tests using the instructions provided. The samples ranged from 48 to 367 mg/dL. The palm results were comparable to finger results.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Summary of Accuracy Results for all sites tested
For glucose levels

§ 862.1345 Glucose test system.

(a)
Identification. A glucose test system is a device intended to measure glucose quantitatively in blood and other body fluids. Glucose measurements are used in the diagnosis and treatment of carbohydrate metabolism disorders including diabetes mellitus, neonatal hypoglycemia, and idiopathic hypoglycemia, and of pancreatic islet cell carcinoma.(b)
Classification. Class II (special controls). The device, when it is solely intended for use as a drink to test glucose tolerance, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 862.9.

0

510(k) Summary

K102383

Purpose for Submission: Addition of Palm testing (alternate site) to existing product.

Analyte: Whole blood Glucose

Type of Test: Quantitative (electrochemical biosensor)

Applicant: Cambridge Sensors.Limited

Units 9 & 10 Cardinal Park Godmanchester Huntingdon Cambs PE29 2XG United Kingdom

Contact Name: Dr. Bernadette Yon-Hin

Date: 24th January 2012

Proprietary and names:

microdot® Home Blood Glucose Monitoring system : microdor® Home Blood Glucose Meter
microdot® Home Test Strips consisting of three products

microdot® Control solutions

Regulatory Information:

Regulation section: 21 CFR § 862.1345, Blood Glucose Test System

Classification: Class II, Class I

Product Code: NBW, Blood Glucose test system, over the counter LFR, Glucose Dehydrogenase, glucose

Panel: Clinical chemistry (75)

Intended Use

Intended use(s): See indication(s) for use below

Cambridge Sensors Limited

1

Indication(s) for use:

The microdot 9 Home Blood Glucose Monitoring System is intended for self testing outside the body (in vitro diagnostic use only), by people with diabetes at home as an aid to monitor the effectiveness of diabetes control. It is intended for "single patient-home use" only and should not be shared. It should be used only for testing fresh capillary whole blood samples from a fingerstick or palm for glucose (sugar). Alternate site testing should be done only during steady-state times (when glucose is not changing rapidly). It is not intended for use on neonates or in the diagnosis of or screening for diabetes mellitus.

The system consists of the microdot Home Blood Glucose meter, microdot 8 Home Test Strips and microdot® Control solutions.

microdot® Home Test Strips

The microdot 8 Home Test strips are intended for the quantitative measurement of glucose in fresh capillary whole blood from a fingerstick or palm.

Special conditions for use statements(s):

This product is intended for over-the-counter. Fingerstick testing only (no palm testing) should be performed if blood glucose level is changing rapidly as follows:

  • Within 2 hours after a meal ◆
  • Within 2 hours after insulin dosing .
  • Patients with a history of hypoglycaemia, experiencing symptoms of low sugar or suffer from hypoglycaemic unawareness.

Special instrument requirements:

microdot® Home Blood Glucose Meter

Device Description:

The microdot® Home Blood Glucose Monitoring System consists of the microdot® Home Blood Glucose Meter, microdote Home Test Strips, microdot Control Solutions and a commercially available (510(k) cleared) lancing device and lancets. A clear cap is provided with the lancing device for alternate site testing on the palm. microdote Home Blood Glucose Monitoring System is for a single patient use only. The meter and lancing device must not be shared with anyone.

microdot® Home is an auto code system. The meter turns on upon insertion of the strip, a blood sample from the finger or palm is applied to the test strip and after 10 seconds, the plasma glucose result is displayed on the screen in mg/dL only.

microdot Home Blood Glucose Monitoring System is substantially equivalent in form, firmware, fundamental scientific technology and specifications as the predicate system, microdot® Xtra Blood Glucose Monitoring System. It relies on quantitative

Cambridge Sensors Limited

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510(k) Summary

electrochemical biosensor technology to measure current generated on disposable test strips.

The strip remains unchanged since the last submission approval, microdot® Xtra Blood Glucose Monitoring System (K083273). The Test Strip manufacturing and performance characteristics are unchanged. The test strips are designed to quantitatively measure glucose in fresh capillary blood from the fingertip by persons with diabetes.

Substantial Equivalence Information:

Predicate device name (s):

microdot® Blood Glucose Monitoring System, 510(k) Number :K070524

microdot® Xtra Blood Glucose Monitoring System, 510(k) Number:K083273 Comparison with predicate:

microdot® Home Test Strips share the same design, functionality, raw materials and manufacturing process as. microdof® Xtra Test Strips.

Device 1Predicate 1Predicate 2
Product Namemicrodot® Homemicrodot®
(K070524)microdot® Xtra
(K083273)
CodeNo code numberCode Number for
each lot of stripsNo code number
EnzymeGlucose
Dehydrogenase/NADSameSame
SampleFresh Capillary whole
bloodSameSame
Blood SourceFinger, PalmFingerFinger
Test PrincipleElectrochemical BiosensorSameSame
CalibrationPlasma equivalentSameSame
Sample volume600nanolitersSameSame
Temperature and
humidity range10°- 40°C
10-90% RHSameSame
Hematocrit range30-50%SameSame
Measurement
Range25 - 525 mg/dLSameSame
Control SolutionLow, Normal, HighSameSame

Comparison to Predicate Devices:

Standard/Guidance Document referenced (if applicable):

ISO15197:2003: in vitro diagnostic test systems- requirements for blood-glucose monitoring systems for self testing in managing diabetes mellitus (Section 8: User Performance)

Test Principle

Cambridge Sensors Limited

3

510(k) Summary

The test is based on the enzymatic conversion of glucose in the sample to gluconolactone, with concomitant reduction of the enzyme cofactor NAD* to NADH. The NADH is re-oxidised to NAD* by the mediator compound which in turn becomes reduced; re-oxidation of the mediator by the meter induces a micro current to flow, and the size of this micro current is directly proportional to the amount of glucose in the sample. Unlike PQQ dependent Glucose Dehydrogenase, the NAD-dependent Glucose Dehydrogenase enzyme used in the microdor® Home test strips is specific to glucose and has no interference from galactose and maltose.

Performance Characteristics

  1. Analytical Performance

Precision/ Reproducibility Established in original submission (K070524)

Linearity/assay reportable range Established in original submission (K070524)

Traceability, Stability', Expected values (controls, calibrators, or methods) Established in original submission (K070524)

Detection Limit Established in original submission (K070524)

Analytical Specificity · Established in original submission (K070524)

Assay Cut-off Not applicable

  1. Comparison Studies

Comparison with predicate device Established in original submission (K070524)

Alternate Site Testing at Palm

A consumer study was performed with 152 diabetics testing themselves both at finger and alternate site and healthcare professionals testing at finger only to see if the results obtained at the alternate site is comparable with the finger. The diabetics obtained the samples and carried out the tests using the instructions provided. The samples ranged from 48 to 367 mg/dL. The palm results were comparable to finger results.

Cambridge Sensors Limited

Page 4 of 5

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Summary of Accuracy Results for all sites tested
Sites testedFor glucose levels