Nissei WS-820
Device Model:
WS-820
Manufacturer:
Nihon Seimitsu Sokki Co. Ltd. (Nissei), 2508-13 Nakago Shibukawa, Gunma 377-0293, JAPAN.
Measuring functions:
Blood pressure
Primary Client Use:
Intended for self-measurement and home use
Measurement Site:
Wrist
Measurement Occurrence:
Single measurements only
Availability:
Discontinued but still available
Availability according to Countries or Regions:
Germany
Device Manual:
Description:
The Nissei WS-820 is an automatic blood pressure monitor. Its blood pressure measurement technology has been proven to be accurate. 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-820, to measure blood pressure, has passed 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 | Legacy approval | Older clinical validation; older protocol |
| BP | DHL (DE) | General use (2004) | Published evidence |
Validation Publications:
Tholl U, Lüders S, Bramlage P, Dechend R, Eckert S, Mengden T, Nürnberger J, Sanner B, Anlauf M. The German Hypertension League (Deutsche Hochdruckliga) Quality Seal Protocol for blood pressure-measuring devices: 15-year experience and results from 105 devices for home blood pressure control. Blood Press Monit. 2016 Aug;22(4):197-205. doi: 10.1097/MBP.0000000000000186. PMID: 26998590.
DHL:1999 - Pass General population (Note: 2003)