Portable Urine Analyzer

What is the Portable Urine Analyzer?

A portable urine analyzer packs the reflectance reader, battery power and printer into a carrying case for bedside, field and mobile clinic use. It suits settings where urinalysis must be available without fixed laboratory infrastructure.

Overview

The device uses the same optical principle as a bench reader but is built for transport, with a rugged housing, internal rechargeable battery, low-power LEDs and a reduced set of wavelengths. The operator dips a strip, places it in the carrier, and the result appears on a small display and can be printed or stored for later transfer. Battery operation typically lasts several hours, and the instrument can also run from mains power when available. Strip storage is critical in mobile use, since heat and humidity degrade pad chemistry, so an insulated container and short holding times are recommended. Results should be transferred to the patient record on return, and the device should be checked with a control strip at the start of each session.

How does it work?

Each pad on a reagent strip contains reagents that change colour in proportion to the analyte concentration: glucose pads use a peroxidase-chromogen system, protein pads rely on the protein error of a pH indicator, blood pads detect the pseudoperoxidase activity of haemoglobin, leukocyte esterase cleaves an ester to release a diazonium-reactive compound, and nitrite is detected by diazotisation. The reader presses the strip against a light source and measures the light reflected from each pad with photodiodes or a camera at defined wavelengths, usually between 525 and 660 nanometres. A compensation pad or channel corrects for the intrinsic colour of the urine, and some instruments also compensate for ascorbic acid interference. The instrument converts reflectance into a category such as negative, trace, 1+, 2+, 3+ or a numeric value for pH and specific gravity.

What are the key features?

• Rugged portable housing with carrying case
• Internal rechargeable battery for several hours of use
• Low-power LED optics with a reduced wavelength set
• Small display with optional thermal printer
• Result storage for later transfer to patient records
• Control strip check recommended at each session

What are the technical specifications?

A typical portable urine analyzer configuration offers measured parameters of 10 parameters with optional microalbumin, wavelengths of Four fixed wavelengths, 525–660 nm, battery life of 4–8 h of intermittent use, weight of 1.5–3 kg with case, reading time of About 5 s after dip and data storage of 1,000 patient results. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Portable Urine Analyzer is used in bedside urinalysis in wards, mobile and outreach clinics, field screening programmes and home care and residential facilities. Across the wider Urine Strip Readers class, laboratories also deploy it for routine urine chemistry screening in clinics, antenatal and pre-employment health checks and diabetes and renal clinic monitoring.

Which standards and certifications apply?

Relevant standards and methods include ISO 15189, CLSI GP16, CLSI EP05, CLSI POCT04, ISO 18113-1, IEC 61010-1 and IEC 61010-2-101. Certification candidates for this model are CE, ISO 13485 manufacturing and NMPA class II registration; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Read strips within the time stated in the instructions, because pad colour continues to develop and delays change results near category boundaries. Protect strips from moisture, heat and light, do not touch the pads and use them before expiry, since degraded strips give falsely negative results. Verify performance at installation with the manufacturer's calibration strip or reference panel, and run quality control material or a known urine sample each working day. Clean the reading window and strip carrier according to the manual, and check that the compensation channel is functioning, because a dirty window biases all reflectance readings. Treat urine as potentially infectious and decontaminate the strip carrier regularly.

How do I select the right Portable Urine Analyzer?

Specify this variant when urinalysis must be performed away from a laboratory and mains power may be unavailable. In the RFQ confirm battery life under typical use, the wavelengths available, whether results can be exported, and the recommended strip storage container for your climate.

How does it compare with other Urine Strip Readers variants?

Decide first how many strips are read each day, because that determines whether a simple bench reader, an instrument with automatic strip feeding or a portable device is appropriate. Then check which parameters the reader measures and whether the report format matches what clinicians expect, especially if semiquantitative scales differ from other laboratories. Confirm the wavelengths and compensation features, since colour and ascorbate interference are the main sources of error, and check whether barcode or operator identification is supported for traceability. For portable and near-patient use, consider battery life, strip storage conditions and whether the device can transmit results. Confirm that the reagent strips specified for the reader are available locally and have an adequate shelf life.