Benson Clinical Viscometers

Industry leading clinical viscometers manufactured in the UK and used by laboratories, hospitals and clinics throughout the world.

BV200 Automated
Clinical Viscometer

About Clinical VISCOMETRY

Benson Viscometers is a British company specialising in the design, development and manufacture of high-quality clinical viscometers and blood measuring equipment.

Information for doctors

Benson Viscometers have written a wealth of articles about viscometry for general practitioners, lab technicians and other medical professionals.

information for students

To complement our medical professional articles, we’ve also written student-specific articles to help inform, and educate medical students on viscometry.

about benson viscometers

Learn more about the company and team behind the world’s leading clinical viscometers.
Meet the team, find out who we work with and more.

what is Plasma Viscosity?

Plasma Viscosity, gives a measure of the acute phase response; i.e. the increase in assorted plasma proteins and fibrinogen in blood plasma stimulated by a variety of causes (e.g. infection, neoplasm or inflammatory disease).

Learn About Serum Viscosity

Serum viscosity measurements give a significant advantage to effective diagnosis and monitoring of patients suffering from many conditions, including Waldenstrom Macroglobulinemia and Multiple Myeloma.

Quality Assurance

Benson Viscometers is committed to continually improving its products and services using an internationally recognised quality management system. We supply UKAS approved calibration and control fluids for use on our viscometers. We have also been ISO 13485:2016 certified since September 2022 and ISO 9001:2015 certified since May 2019, highlighting our commitment in providing the best possible products and the best possible experience we can for our customers.

Facts About Plasma Viscometry

  • Patient plasma viscosity (PV) is unaffected by patient anaemia or polycythaemia
  • Samples can be analysed up to one week after centrifugation
  • Test results are not affected by anti-inflammatory drugs
  • Patient PV is not affected by age (>3 years), gender or smoking
  • A rise of PV in the third trimester of pregnancy is predictable
  • The only diagnostic test for plasma hyperviscosity

Bernie Benson

Chairman of Benson Viscometers

I am Bernie Benson, engineer, inventor, and entrepreneur. In the late 1990’s I worked with respected scientists and haematologists from the UK NHS to lay down the specification of a then-revolutionary laboratory instrument. An automated clinical viscometer known then as the blood plasma viscometer.

Support Literature

Support literature contains useful information on clinical viscometers and viscosity testing such as, a quick reference guide, comparisons to other types of inflammation testing and reference information.

Read More »

Comparing Benson Viscometers & ESR (Erythrocyte sedimentation rate) tests

Benson Viscometers
ESR Test

Who we work with

Clinical Viscometry Information

For Doctors, Laboratory Technicians & Medical Professionals

Serum Viscosity

This area contains information about serum viscosity and its use in managing Waldenstrom’s Macroglobulinemia and Multiple Myeloma

Read More »

Support Literature

Support literature contains useful information on clinical viscometers and viscosity testing such as, a quick reference guide, comparisons to other types of inflammation testing and reference information.

Read More »

BV1 Semi-Automated Clinical Viscometer

The BV1 clinical viscometer will measure the viscosity of human biological fluids: blood plasma, blood serum, whole blood, and synovial fluid.

  • Processes up to 50 patient samples a day
  • Test directly from primary blood sample tubes
  • Uses full blood count tubes residue
  • Cap piercing capability
  • Accommodates tubes from all leading blood collection tube manufacturers
  • Aspirates only 60µl per test. Only requires 500µl of sample fluid
  • Suitable for repeat testing of paediatric and adult samples
  • Fast, 15-minute turnaround time from sample receipt to results
  • Barcode reading immediately prior to analysis
  • Operator is present to process patient test samples
  • Automated calibration checks every 6 patient samples
  • Network interface capability
  • Sample and wash carry-over level of <0.01 mPa.s
  • Tests at 37°C, reports at 25°C or 37°C

BV200 Automated Clinical Viscometer

The BV200 clinical viscometer will measure the viscosity of human biological fluids: blood plasma, blood serum, whole blood, and synovial fluid.

  • Processes in excess of 400 samples a day
  • Test directly from primary blood sample tubes
  • Uses full blood count tubes residue
  • Cap piercing capability
  • Accommodates tubes from all leading blood collection tube manufacturers
  • Aspirates only 50µl per test. Only requires 500µl of sample fluid
  • Suitable for repeat testing of paediatric and adult samples
  • Can be loaded with up to 180 patient samples at a time
  • Fast, 15-minute turnaround time from sample receipt to results
  • Automatic barcode reading immediately prior to analysis
  • Load and walk away system
  • Automatic calibration checks every 10 patient samples
  • Network interface capability
  • Sample and wash carry-over level of <0.01 mPa.s
  • Operator password logon
  • Tests at 37°C, reports at 25°C or 37°C
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Educational Viscometry Information

For Medical Students

Serum Viscosity

This area contains information about serum viscosity and its use in managing Waldenstrom’s Macroglobulinemia and Multiple Myeloma

Read More »

Support Literature

Support literature contains useful information on clinical viscometers and viscosity testing such as, a quick reference guide, comparisons to other types of inflammation testing and reference information.

Read More »
Write for us

Benson Viscometers is currently accepting guest articles with the aim to have an impartial discussion related to Plasma Viscosity testing. If you have a passion for viscosity testing, get in touch with us as we'd love to work with you.

Downloads and Support
SATISFACTION GUARANTEED

In addition to the guidance documentation provided within the system software, Benson Viscometers provide the following support:

  • Telephone support – 9am to 5pm Monday to Friday, excluding public holidays
  • Engineer visits
  • Remote support
  • Planned maintenance visits
  • Training of qualified hospital personnel
  • Maintenance Tool kits
  • Replacement parts shipped to site
  • Routine shipments of calibration materials

Our Benson BV200 is serviced on a bi-annual basis by one of the Benson Viscometer service engineers. We are a remote Hospital site situated in the Scottish Highlands which makes emergency call out for an engineer quite difficult. However, this is compensated by an enhanced telephone service from the Benson support team. This includes personnel who have a massive in depth knowledge of their technology as well as dedicated IT support. The team work together as required to resolve any issue, providing clear instruction and computer upgrades as necessary. Any required parts for our BV200 are sent by dedicated delivery - if the Benson helpdesk are aware in good time on any given day replacement parts will be sent promptly and normally received the following day - exceptional for our geographical location.

Mick Milner, Haematology Team Manager, Blood Science Dept., Raigmore Hospital, Inverness.

I would like to say how reliable our BV1 has proved over the years and how helpful the Benson staff are on the very odd occasion when there is a problem.

Erica Stewart, Haematology Laboratory, Ulster Hospital

Benson Viscometers is the UK leader for plasma viscosity testing systems and we have had a long relationship with Bernie Benson. The BV1 is superbly engineered and easy to use, with a modified PC cabinet and a small foot print. Customer support is second to none.

Graham Gibbs MSc CSci FIBMS, Lead Biomedical Scientist, Haematology Dept., Musgrove Park Hospital

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