(13 days)
Measuring Systolic and Diastolic blood pressure and pulse rates in adult patients with arm circumferences between 5½~ 7½ inches using the oscillometric method
MD-880B, MD-900T models are oscillometric systems intended for measurement of blood pressure and purse rate in a home care environment.
- 1)MD-880B : MD-880B employs the oscillometric method for measurement of blood pressure and heart rate. A cuff is wrapped around the wrist and inflates to a pressure sufficient to initially interrupt blood flow. As cuff pressure is gradually reduced, a sensor inside the cuff detects the small oscillations in pressure against the cuff produced by expansion and contractions of the arteries in the wrist in response to each heart beat. The amplitude of these pressure waves is measured to monitor changes in the character of blood flow and the corresponding cuff pressure at which these changes occur is detected. The systolic and diastolic pressure in millimeters of mercury, followed by the heart rate in beats per minute, is displayed as a numerical value on the LCD.
The cuff is automatically inflated by a built-in air pump(low noise) and selected inflation level by checking heart beat signal. The inflation is automatically activated in about 1 second after power on. The three-row, 9-digit LCD displays systolic pressure(upper 3digits) and diastolic pressure(middle 3 digits) and heart rate(lower 3-digits). In addition, the date and time are displayed(8-digit).
MD-880B incorporates a constant air release valve to regulate deflation rate, within limits of 2 or 3 mmHg/sec to optimize measurement accuracy. The pressure measurement range is 20 to 285 mmHq. And keys are consisting of push-button switch instead of touch screen(MD-900T) for low cost model.
MD-880B is powered by two AAA-size batteries and are equipped with a circuit that will automatically cut off power after about 1 minutes of non-use to conserve battery charge.
-
- MD-900T : MD-900T employs the oscillometric method for measurement of blood pressure and heart rate. A cuff is wrapped around the wrist and inflates to a pressure sufficient to initially interrupt blood flow. As cuff pressure is gradually reduced, a sensor inside the cuff detects the small oscillations in pressure against the cuff produced by expansion and contractions of the arteries in the wrist in response to each heart beat. The amplitude of these pressure waves is measured to monitor changes in the character of blood flow and the corresponding cuff pressure at which these changes occur is detected. The systolic and diastolic pressure in millimeters of mercury, followed by the heart rate in beats per minute, is displayed as a numerical value on the LCD.
The cuff is automatically inflated by a built-in air pump(low noise) and selected inflation level by checking heart beat signal. The inflation is automatically activated in about 1 second after power on. The three-row, 9-digit LCD displays systolic pressure(upper 3-digits) and diastolic pressure(middle 3 digits) and heart rate(lower 3-digits). In addition, the date and time are displayed(8-digit).
- MD-900T : MD-900T employs the oscillometric method for measurement of blood pressure and heart rate. A cuff is wrapped around the wrist and inflates to a pressure sufficient to initially interrupt blood flow. As cuff pressure is gradually reduced, a sensor inside the cuff detects the small oscillations in pressure against the cuff produced by expansion and contractions of the arteries in the wrist in response to each heart beat. The amplitude of these pressure waves is measured to monitor changes in the character of blood flow and the corresponding cuff pressure at which these changes occur is detected. The systolic and diastolic pressure in millimeters of mercury, followed by the heart rate in beats per minute, is displayed as a numerical value on the LCD.
MD-900T incorporates a constant air release valve to regulate deflation rate, within limits of 2 or 3 mmHg/sec to optimize measurement accuracy. The pressure measurement range is 20 to 285 mmHg.
MD-900T is powered by two AAA-size batteries and are equipped with a circuit that will automatically cut off power after about 1 minutes of non-use to conserve battery charge.
The provided text describes the regulatory clearance for the MEDITEC Wrist Type Blood Pressure Monitor (MD-880B, MD-900T). Here’s an analysis of the acceptance criteria and the study that proves the device meets those criteria, based only on the information given.
1. Table of Acceptance Criteria and Reported Device Performance
The text explicitly states that the device was evaluated against the accuracy criteria established in the ANSI/AAMI SP 10-1992 standard. While the specific numerical acceptance criteria from this standard are not detailed in the provided text, the overall outcome is reported.
| Acceptance Criteria (from ANSI/AAMI SP 10-1992) | Reported Device Performance |
|---|---|
| Accuracy criteria for blood pressure measurement | "found to comply fully with the accuracy criteria established in the standard." |
| Safety and functional testing (electrical, mechanical, environmental integrity, high/low altitude, vibration/shock, life cycle, intra-device variability) | "performed with satisfactory results." |
| Biocompatibility of cuff materials | "evaluated favorably by TUV Product Service." |
| Electromagnetic interference | "found to comply with international standards." |
| Software validation | "performed and documented." |
2. Sample Size Used for the Test Set and Data Provenance
The text mentions "clinical studies conducted on accordance with ANSI/AAMI SP 10-1992," but it does not specify the sample size used for these studies or the test set.
Data Provenance: The document does not explicitly state the country of origin of the data or whether the studies were retrospective or prospective. It only refers to "clinical studies."
3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications
The provided text does not specify the number of experts used to establish ground truth or their qualifications. For blood pressure monitors, ground truth is typically established by trained technicians or clinicians using a reference device (e.g., auscultatory method with a mercury sphygmomanometer).
4. Adjudication Method for the Test Set
The provided text does not specify any adjudication method.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
The text does not mention a multi-reader multi-case (MRMC) comparative effectiveness study, nor does it discuss human reader improvement with or without AI assistance. This type of study is more common for diagnostic imaging devices, whereas this submission is for a blood pressure monitor.
6. Standalone Performance Study
Yes, a standalone performance study was done. The text states:
- "The measurement performances of the 2 MEDITEC systems have been evaluated in clinical studies conducted on accordance with ANSI/AAMI SP 10-1992 and found to comply fully with the accuracy criteria established in the standard."
- "Safety and functional testing including electrical characteristics, mechanical and environmental integrity under various operating and storage conditions, high and low altitude performance, resistance to vibration and shock, life cycle testing, and intra-device variability has been performed with satisfactory results."
These statements directly refer to the algorithm's (device's) performance without human intervention during the measurement process, indicating standalone studies.
7. Type of Ground Truth Used
For blood pressure monitors, the "ground truth" (or reference standard) is typically established by simultaneous measurements using a validated reference method, such as auscultation with a mercury sphygmomanometer performed by trained observers. The text refers to "clinical studies conducted on accordance with ANSI/AAMI SP 10-1992," which is the standard outlining such reference methods for validation. While not explicitly stated, this implies the use of a recognized reference standard for blood pressure measurement.
8. Sample Size for the Training Set
The provided text does not specify the sample size for any training set. As this is a medical device clearance and not an AI/ML software submission, the concept of a "training set" in the context of machine learning might not be directly applicable or explicitly detailed. The device operates based on an oscillometric method, which is a known physical principle, not necessarily a trained AI model in the modern sense.
9. How the Ground Truth for the Training Set Was Established
Since the text does not mention a specific "training set" in the context of an AI/ML model, it does not describe how ground truth for a training set was established.
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510(k) Summary
This summary of 510(k) safety and effectiveness information is being submitted in accordance with requirements of 21 CFR Part 807 92.
Date: March 2, 2004
- Company and Correspondent making the submission:
Name - MEDITEC Co., Ltd.
Address – A-206, Bundang Techno-Park, 150 Yatap-Dong, Bundang-Gu, Sungnam-City, Kyounggi-Do, 463-070, Republic of Korea
Telephone – 82 31 707-2701
Fax – 82 31 707-2704
Contact - Mr. DongHyun Chang
Internet – http://www.mediteco.co.kr
- Device :
Proprietary Name – Wrist Type Blood Pressure Monitor(MD-880B, MD-900T) Common Name - Noninvasive Blood Pressure Measurement System, Classification Name - System, Measurement, Blood Pressure, Noninvasive
3. Predicate Device :
-
- Omron Healthcare, Inc.
HEM-630
- Omron Healthcare, Inc.
K001671(Decision Date - 06/30/2000) .
- MEDITEC Co., Ltd.
MD-770
K992328(Decision Date - 07/21/1999)
4. Classifications Names & Citations :
21CFR 870.1130, DXN, SYSTEM, MEASUREMENT, BLOOD-PRESSURE, NON-INVASIVE, Class2 Guidance document for the preparation of premarket notifications [510(k)'s] for Noninvasive blood pressure monitor guidance
MEDITEC Co., Ltd.
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5. Description :
MD-880B, MD-900T models are oscillometric systems intended for measurement of blood pressure and purse rate in a home care environment.
- 1)MD-880B : MD-880B employs the oscillometric method for measurement of blood pressure and heart rate. A cuff is wrapped around the wrist and inflates to a pressure sufficient to initially interrupt blood flow. As cuff pressure is gradually reduced, a sensor inside the cuff detects the small oscillations in pressure against the cuff produced by expansion and contractions of the arteries in the wrist in response to each heart beat. The amplitude of these pressure waves is measured to monitor changes in the character of blood flow and the corresponding cuff pressure at which these changes occur is detected. The systolic and diastolic pressure in millimeters of mercury, followed by the heart rate in beats per minute, is displayed as a numerical value on the LCD.
The cuff is automatically inflated by a built-in air pump(low noise) and selected inflation level by checking heart beat signal. The inflation is automatically activated in about 1 second after power on. The three-row, 9-digit LCD displays systolic pressure(upper 3digits) and diastolic pressure(middle 3 digits) and heart rate(lower 3-digits). In addition, the date and time are displayed(8-digit).
MD-880B incorporates a constant air release valve to regulate deflation rate, within limits of 2 or 3 mmHg/sec to optimize measurement accuracy. The pressure measurement range is 20 to 285 mmHq. And keys are consisting of push-button switch instead of touch screen(MD-900T) for low cost model.
MD-880B is powered by two AAA-size batteries and are equipped with a circuit that will automatically cut off power after about 1 minutes of non-use to conserve battery charge.
-
- MD-900T : MD-900T employs the oscillometric method for measurement of blood pressure and heart rate. A cuff is wrapped around the wrist and inflates to a pressure sufficient to initially interrupt blood flow. As cuff pressure is gradually reduced, a sensor inside the cuff detects the small oscillations in pressure against the cuff produced by expansion and contractions of the arteries in the wrist in response to each heart beat. The amplitude of these pressure waves is measured to monitor changes in the character of blood flow and the corresponding cuff pressure at which these changes occur is detected. The systolic and diastolic pressure in millimeters of mercury, followed by the heart rate in beats per minute, is displayed as a numerical value on the LCD.
The cuff is automatically inflated by a built-in air pump(low noise) and selected inflation level by checking heart beat signal. The inflation is automatically activated in about 1 second after power on. The three-row, 9-digit LCD displays systolic pressure(upper 3-
- MD-900T : MD-900T employs the oscillometric method for measurement of blood pressure and heart rate. A cuff is wrapped around the wrist and inflates to a pressure sufficient to initially interrupt blood flow. As cuff pressure is gradually reduced, a sensor inside the cuff detects the small oscillations in pressure against the cuff produced by expansion and contractions of the arteries in the wrist in response to each heart beat. The amplitude of these pressure waves is measured to monitor changes in the character of blood flow and the corresponding cuff pressure at which these changes occur is detected. The systolic and diastolic pressure in millimeters of mercury, followed by the heart rate in beats per minute, is displayed as a numerical value on the LCD.
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digits) and diastolic pressure(middle 3 digits) and heart rate(lower 3-digits). In addition, the date and time are displayed(8-digit).
MD-900T incorporates a constant air release valve to regulate deflation rate, within limits of 2 or 3 mmHg/sec to optimize measurement accuracy. The pressure measurement range is 20 to 285 mmHg.
MD-900T is powered by two AAA-size batteries and are equipped with a circuit that will automatically cut off power after about 1 minutes of non-use to conserve battery charge.
-
- Indication for use :
Measuring Systolic and Diastolic blood pressure and pulse rates in adult patients with arm circumferences between 5½~ 7½ inches using the oscillometric method
- Indication for use :
-
- Comparison with predicate device :
MD-880B, MD-900T models have been compared with the automatically inflated Omron Healthcare model HEM-630 and Meditec model MD-770. The intended use of the 2 subject devices and the predicate devices is the same. The principle of operation(oscillometric measurement) is identical and there are no significant differences on operating features. It is concluded that there are no technologic differences between the subject and predicate devices that raise new questions concerning either safety or effectiveness.
- Comparison with predicate device :
-
- Performance Data :
The measurement performances of the 2 MEDITEC systems have been evaluated in clinical studies conducted on accordance with ANSI/AAMI SP 10-1992 and found to comply fully with the accuracy criteria established in the standard. Safety and functional testing including electrical characteristics, mechanical and environmental integrity under various operating and storage conditions, high and low altitude performance, resistance to vibration and shock, life cycle testing, and intra-device variability has been performed with satisfactory results. The biocompatibility of cuff materials was evaluated favorably by TUV Product Service. Electromagnetic interference studies have been conducted by ONETECH Testing & Evaluation Laboratories and found to comply with international standards. Software validation have been performed and documented. It is concluded that the subject devices comply with all relevant safety and performance standards.
- Performance Data :
-
- Conclusions :
In accordance with the Federal Food, Drug and Cosmetic Act, 21 CFR Part 807, FDA's "Guidance document for the preparation of premarket notifications {510(k)'s} for NON-
- Conclusions :
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KC41789
-page 4 of 4
510(k) Submission ~ MD-880B, 900T
INVASIVE BLOOD PRESSURE (NIBP) MONITOR GUIDANCE" and based on the information provided in this premarket notification MEDITEC Co.,Ltd. concludes that MD-880B, MD-900T is safe and effective and substantially equivalent to predicate devices as described herein.
-
- MEDITEC Co., Ltd. will update and include in this summary any other information deemed seasonably necessary by the FDA.
END
- MEDITEC Co., Ltd. will update and include in this summary any other information deemed seasonably necessary by the FDA.
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Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three bars extending from its neck, enclosed within a circle. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged around the upper portion of the circle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
JUL 1 5 2004
Meditec Co., Ltd. c/o Mr. Chan Yo Won Project Engineer Underwriters Laboratories, Inc. UL Conformity Assessment Services 2600 N.W. Lake Road Camas, WA 98607-8542
Re: K041789 Trade Name: MD-880B, 900T Regulation Number: 21 CFR 870.1130 Regulation Name: Noninvasive Blood Pressure Measurement System Regulatory Class: II (two) Product Code: DXN Dated: July 1, 2004 Received: July 2, 2004
Dear Mr. Won:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your Section 3 ro(x) premium is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the encrosule) to regally manatise possible in the Medical Device American Frank Drug commerce prior to May 20, 1970, the encordance with the provisions of the Federal Food. Drug. devices that have been reclassified in assessment of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The You may, therefore, manel the do received be requirements for annual registration, listing of general controls provisions of the Provibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it If your device is classified (see above) the existing major regulations affecting your device can
may be subject to such additional controls. Existing major and contribution may be subject to such additional controller Entisting and to 898. In addition, FDA may be found in the Code of I sacrassing your device in the Federal Register.
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Page 2 - Mr. Chan Yo Won
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); 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. This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (301) 594-4648. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours.
Neil R.P. Ogden for
Bram D. Zuckerman, M. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Indications for Use
510(k) Number(if known):
Device Name: MD-880B, 900T
Indications for Use:
Measuring Systolic and Diastolic blood pressure and pulse rates in adult patients with arm circumferences between 54~7% inches using the oscillometric method
Nefre Ogle for bbz
(Division Sign-Off)
Division of Cardiovascular Devices
510(k) Number K041789
Prescription Use_ (Part 21 CFR 801 Subpart D)
(Part 21 CFR 807 Subpart C)
Over-The-Counter Use
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
AND/OR
Concurrence of CDRH, Office of Device Evaluation(ODE)
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§ 870.1130 Noninvasive blood pressure measurement system.
(a)
Identification. A noninvasive blood pressure measurement system is a device that provides a signal from which systolic, diastolic, mean, or any combination of the three pressures can be derived through the use of tranducers placed on the surface of the body.(b)
Classification. Class II (performance standards).