ROSSMAX AUTOMATIC WRISTWATCH BLOOD PRESSURE MONITOR, MODEL Z46

K993432 · Rossmax International , Ltd. · DXN · Dec 20, 1999 · Cardiovascular

Device Facts

• Record ID: K993432
• Device Name: ROSSMAX AUTOMATIC WRISTWATCH BLOOD PRESSURE MONITOR, MODEL Z46
• Applicant: Rossmax International , Ltd.
• Product Code: DXN · Cardiovascular
• Decision Date: Dec 20, 1999
• Decision: SESE
• Submission Type: Special
• Regulation: 21 CFR 870.1130
• Device Class: Class 2

Intended Use

To measure systolic and diastolic blood pressure and heart rate on the wrist using the oscillometric method. Limited to patient over 18 years and wrist circumference between 5.3 to 7.7 inches.

Device Story

The Rossmax Automatic Wristwatch Blood Pressure Monitor (Model Z46) is a non-invasive device designed for wrist-based blood pressure and heart rate measurement. It utilizes the oscillometric method to detect pressure oscillations during cuff deflation. The device is intended for over-the-counter use by adult patients. It provides digital readouts of systolic and diastolic blood pressure and heart rate, allowing users to monitor cardiovascular metrics at home. The device assists in tracking blood pressure trends, which can inform clinical decision-making regarding hypertension management.

Clinical Evidence

No clinical data provided; device clearance based on substantial equivalence to existing legally marketed devices.

Technological Characteristics

Wrist-worn oscillometric blood pressure monitor. Measures systolic/diastolic pressure and heart rate. Designed for wrist circumferences 5.3 to 7.7 inches. Operates via automated inflation/deflation cycle.

Indications for Use

Indicated for adults over 18 years of age with a wrist circumference of 5.3 to 7.7 inches for the measurement of systolic and diastolic blood pressure and heart rate.

Regulatory Classification

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.

Submission Summary (Full Text)

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Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

DEC 2 0 1999

Mr. Michael Yeh Rossmax International Ltd. SF., No. 6, Alley 20, Lane 106 Section 3, Nan Kanq Road Taipei, TAIWAN

Re: K993432 Rossmax Automatic Wristwatch Blood Pressure Monitor, Model Z46 Regulatory Class: II (two) Product Code: DXN Dated: December 1, 1999 December 3, 1999 Received:

Dear Mr. Yeh:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we 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, Druq, and Cosmetic Act (Act). 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.

If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major requlations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Current Good Manufacturing Practice requirements, as set forth in the Quality System Requlation (QS) for Medical Devices: General requlation (21 CFR Part 820) and that, through periodic QS inspections, the Food and Drug Administration (FDA) will verify such Failure to comply with the GMP regulation may result in assumptions. In addition, FDA may publish further announcements regulatory action. concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.

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Page 2 - Mr. Michael Yeh

This letter will allow you to begin marketing your device as described in your 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 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at [phone]. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at [phone]. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number [phone] or [phone], or at its internet address "http://www.fda.gov/cdrh/dsma/dsmamain.html".

Sincerely yours,

Colin M. Witten, Ph.D., M.D.

Celia M. Witten, Ph.D., M.D. Acting Director Division of Cardiovascular, Respiratory, and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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## ATTACHMENT 1

## Indications for Use Statement

Device Names: Rossmax Automatic Wristwatch Blood Pressure Monitor, model Z46 Indications For Use: To measure systolic and diastolic blood pressure and heart rate on the wrist using the oscillometric method. Limited to patient over 18 years and wrist circumference between 5.3 to 7.7 inches.

Concurrence of CDRH, Office of Device Evaluation (ODE)

Bee E. Demaree

(Division Sign-Off) Division of Cardiovas and Neurological D 510(k) Number

Prescription Use______________________________________________________________________________________________________________________________________________________________

or

Over-the-counter use