Nissei WS-310

Device Model:

WS-310

Manufacturer:

Nihon Seimitsu Sokki Co. Ltd. (Nissei), 2508-13 Nakago Shibukawa, Gunma 377-0293, JAPAN.

Measuring functions:

Blood Pressure and PR

Primary Client Use:

Intended for self-measurement and home use

Measurement Site:

Wrist

Measurement Occurrence:

Single measurements only

Availability:

Discontinued but still available

Description:

The Nissei WS-310 is an automatic blood pressure monitor. Medaval has not found evidence proving the accuracy of its blood pressure measurement technology. Blood pressure measurements are taken from the wrist. It is intended for self-measurement and home use. This device has been discontinued by the manufacturer but may be available through certain outlets.

Assessment:

The technology used in the Nissei WS-310, to measure blood pressure, has failed in a clinical validation study, in a general population, according to a recognised standard protocol, as published in a peer-reviewed publication.

Recommendations:

	Accuracy Assessment	Recommendation	Basis
BP	Medaval	Not recommended	This device has failed a clinical validation.

Validation Publications:

Altunkan S, Yildiz S, Azer S. Wrist blood pressure-measuring devices: a comparative study of accuracy with a standard auscultatory method using a mercury manometer. Blood Press Monit. 2002 Oct;7(5):281-4. PMID: 12409888.

BHS:1993 - Fail (C/B) General population

SP10:1992 - Fail General population