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Visionstar SJD-231

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Visionstar Dental And Oral Care Equipment

Visionstar SJD-231

Product Code: DAOC-DI-2731

Recall by risk, not by calendar. The record starts here.

Recall runs on justification, not the calendar. The Visionstar SJD-231 pairs a 2.4 inch dot matrix readout with 60 or 70 kV, four milliamp steps and 0.1–2 s timing, in a 1.7 kg body.

Sections

Intraoral X-ray Units

Categories

Dental And Oral Care Equipment

Condition

New

Origin

China

Seller Type

Certified Professional Seller

Size:

110 × 150 × 220 mm

CE & ISO Certified

Global Shipping

Supplier: Medigear

The Visionstar SJD-231 is a battery-powered dental X-ray generator for intraoral radiography at the point of care. The generator runs at 30 kHz, with tube voltage selectable at 60 or 70 kV, tube current selectable across 1.5, 2.0, 2.5 and 3.0 mA, and exposure timing from 0.1 to 2 seconds. Tube focus is specified at order as 0.4 mm or 0.8 mm.

The control face carries a 2.4-inch dot matrix readout. Characters are built from an illuminated cell grid across a fixed field, so the same information appears in the same place every time. On a recall list, where the same view is taken for patient after patient, that predictability is what makes confirmation quick — the operator checks a known position rather than searching the panel.

Recall and monitoring radiography is where this unit earns its place, and it is worth being precise about what that means in UK practice. Radiographs are justified individually under IR(ME)R 2017, based on caries risk, periodontal status and clinical findings for that patient. Recall guidance from NICE and the radiographic selection criteria published by the profession set risk-based intervals; they do not create an entitlement to a radiograph at a fixed date. Equipment supports that judgement rather than replacing it.

Consistent output matters for the same reason. A 30 kHz inverter holds the kilovoltage waveform close to constant potential through the exposure, so a bitewing taken at this recall is comparable with the one taken at the last. Serial comparison of caries progression, bone levels and resorption depends on that.

The housing is shaped to sit in the palm, with the flat control face to the rear and a tapered nose forward. At 220 mm deep, the emitting end stands away from the hand while the mass stays close to the wrist.

Published distance from skin to cone is 130 mm — raise that with your Radiation Protection Adviser during specification, since UK dental guidance sets minimum focus-to-skin distances that differ above 60 kV, and this unit offers a 70 kV setting. Power comes from a DC 14.8 V 1600 mAh lithium pack, charged from AC 100–240 V with a DC 16.8 V output, rated at 100–300 VA. Medigear.uk can arrange supply, delivery, commissioning, staff familiarisation and service cover for the SJD-231 across the United Kingdom.

Intraoral radiography carries the diagnostic load in UK general dentistry, and the SJD-231 is configured for that daily volume. It supports bitewing caries detection, periapical assessment of pathology, alveolar bone-level review, endodontic length verification and root morphology assessment ahead of extraction.

Recall and monitoring is the workflow this unit is positioned for. UK practices set radiographic intervals on individual risk — caries activity, periodontal status, restorative history — guided by NICE recall guidance and the radiographic selection criteria published by the profession, with each exposure justified individually under IR(ME)R 2017. A high-throughput recall list means the same views taken repeatedly across many patients, which puts a premium on a protocol that is quick to apply and consistent to repeat.

New patient assessment produces the baseline everything later is read against. Where justified on clinical findings and history, bitewings and periapicals establish caries and bone-level status at first attendance, and that first set often turns out to be the most useful radiograph in a patient's record.

Serial monitoring depends on comparability. Approximal caries progression, alveolar bone-level change and resorption are judged by reading a current view against an earlier one, so exposure variation between visits can present as clinical change. Stable output, a documented protocol and consistent geometry from holders and paralleling technique protect that comparison.

Quality assurance under IRR17 sits alongside all of it, with image quality assessment and retake analysis as documented activities.

Community dental services and special care teams need equipment one clinician can carry. At 1.7 kg, the unit travels easily, with off-site radiation protection arrangements agreed with the RPA in advance.

Guidance from the College of General Dentistry and UKHSA Dental X-ray Protection Services remains the reference point that UK practices work to, alongside HSE enforcement of IRR17.

A fixed field the eye already knows.

Dot matrix characters occupy the same positions on every exposure, so on a list of similar views the operator confirms a known location. Across a recall session, those saved moments accumulate.

Output that keeps comparisons honest

A 30 kHz inverter holds the kilovoltage waveform close to constant potential, so a bitewing taken at this recall is comparable with the one taken at the last. Serial interpretation depends on that.

Audit findings that point at technique

Where equipment output is stable, variation surfacing in an image quality audit points at technique, receptor handling or protocol — things a practice can act on — rather than at the machine.

Quick to set, consistent to repeat

Recall radiography puts the same protocol through many patients in a day. A control face that is fast to set and an output that repeats keeps clinical judgement the slow part of the appointment.

An exposure envelope that spans the view set

Two kilovoltage settings and four milliamp steps let a protocol reach from paediatric anterior views up to molar bitewings on a large adult, with values agreed by your MPE and recorded as local diagnostic reference levels.

Mass at the wrist, beam well forward.

A rounded palm-held body with a 220 mm depth keeps the weight close to the wrist while the emitting end stands away from it, supporting a steady hold through a long list.

Carried by one clinician

At 1.7 kg, the unit sits comfortably within single-person handling for a full list or a community round, alongside whatever else has to travel.

UK supply, commissioning and service through one route

Medigear.uk can arrange listing, supply, delivery, installation, commissioning, staff familiarisation, service cover, planned maintenance and quotations for the SJD-231 across the United Kingdom, including requesting the manufacturer's focus-to-skin, cone, filtration and battery documentation.

2.4-inch dot matrix readout

Characters are formed from an illuminated cell grid across a fixed field, presenting the same information in the same position on every exposure.

30 kHz generator

High-frequency drive produces a near-constant potential waveform through the exposure, supporting repeatable receptor density from one radiograph to the next.

Selectable tube voltage at 60 or 70 kV

Two kilovoltage settings support protocols that vary by region, patient build and the greyscale range a view requires.

Selectable tube current across four steps

Tube current is offered at 1.5, 2.0, 2.5 and 3.0 mA, giving a second exposure variable alongside kilovoltage and time.

0.1–2 second exposure timing

A twenty-fold span reaches direct digital sensors at the short end and phosphor storage plate or film technique at the upper limit.

Tube focus at 0.4 mm or 0.8 mm

Focus size is specified at order, one of the figures governing geometric sharpness at the receptor alongside working distance and receptor type.

130 mm published skin-to-cone distance

The manufacturer publishes a skin-to-cone figure; confirm with the manufacturer whether this is the focus-to-skin distance and which kilovoltage settings the supplied cone supports, and have your RPA review it.

Palm-held rounded housing

The body is shaped to sit in the palm, with the flat control face to the rear and a tapered nose forward of the hand.

220 mm housing depth

Published depth places the emitting end well forward of the operator's hand while the mass stays close to the wrist.

Membrane control keypad

A sealed key array gives positive tactile feedback under a glove and presents a flat, wipeable control face for routine decontamination.

Ready and exposure indicators

Illuminated status markers signal machine state through the exposure cycle, giving visual confirmation at each stage.

Side-mounted exposure release

The exposure control sits on the side of the housing, within reach of the carrying hand while the head is held in position.

DC 14.8 V 1600 mAh lithium battery

An integrated lithium pack powers the unit away from a fixed power position, charged from AC 100–240 V with a DC 16.8 V output and a 100–300 VA rating.

Moulded hand strap and wipeable shell

An integrated strap supports single-hand carrying, and the sealed keypad and moulded housing present flat surfaces suited to routine surgical decontamination.

The Visionstar SJD-231 gives UK dental teams a 1.7 kg battery-powered X-ray generator built around a 2.4-inch dot matrix readout and 30 kHz generator drive, with selectable 60 or 70 kV tube voltage, four selectable milliamp steps, a 0.1–2 second exposure range, tube focus at 0.4 mm or 0.8 mm and a DC 14.8 V lithium pack. It fits NHS and private general practice running recall and monitoring programmes, new patient assessment, caries and periodontal surveillance, endodontics, paediatric and special care dentistry, community dental services and outreach work. Medigear.uk can arrange supply, delivery, commissioning, staff familiarisation, service cover and planned maintenance across the United Kingdom, and can arrange for the manufacturer's focus-to-skin distance, cone, filtration and battery documentation to accompany your quotation for your Radiation Protection Adviser's review. Contact the Medigear.uk team for pricing, lead times, tube focus selection and configuration enquiries.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

Recall radiographs are justified individually, patient by patient, under IR(ME)R 2017. Recall guidance from NICE and the radiographic selection criteria published by the profession set risk-based intervals — shorter for high caries risk, longer for stable low-risk patients — but an interval is guidance, not an automatic entitlement. The practical implication for equipment is that a unit needs to make a justified exposure quick to set and consistent to repeat, so the clinical judgement stays the slow part and the technique does not.

A fixed character field. Information appears in the same position every time, built from an illuminated cell grid at a generous character size, so on a list of similar views the operator confirms a known position rather than reading the panel afresh. That saves a moment on every exposure, and moments add up across a recall session.

Indirectly, and usefully. IRR17 requires a documented quality assurance programme, and image quality assessment with retake analysis sits inside it. Consistent generator output means that when a batch of images is audited, variation points at technique, receptor handling or protocol rather than at unstable exposure. Set your protocols with your Medical Physics Expert, record them as local diagnostic reference levels, and audit against them at the interval your Radiation Protection Adviser specifies.

New patient radiographs are justified on clinical findings and history, not taken as routine. Where justified, bitewings and periapicals establish a caries and bone-level baseline that later recalls are read against, which is often the most valuable radiograph a patient ever has. The unit produces both, with a timing range covering whichever receptor the surgery runs.

Serial comparison is only as good as the consistency behind it. Approximal caries progression, alveolar bone-level change and root resorption are all judged by comparing a current view with an earlier one, so a difference caused by exposure variation reads as a clinical change. Stable output and a documented protocol are what keep those comparisons honest — geometry matters too, which is why holders and paralleling technique remain the standard.

Raise this before order. UK dental guidance sets minimum focus-to-skin distances for intraoral equipment, and the required figure steps up for sets operating above 60 kV — commonly expressed as 100 mm at 60 kV and below, and 200 mm above 60 kV. This unit offers a 70 kV setting and publishes a 130 mm skin-to-cone figure. Ask the manufacturer to confirm whether that is the focus-to-skin distance or a cone measurement, whether a longer cone is available, and which kilovoltage settings the supplied cone supports. Have your Radiation Protection Adviser resolve it before the unit goes into service.

The pack is a DC 14.8 V 1600 mAh lithium unit, charged from AC 100–240 V with a DC 16.8 V output, so it runs on UK mains directly. The manufacturer does not publish an exposures-per-charge figure, which is worth asking about for a unit intended to carry a full recall list. Request it at quotation along with spare pack availability and pricing.

The Ionising Radiations Regulations 2017 require employers carrying out dental X-ray work to register with the Health and Safety Executive, appoint a Radiation Protection Adviser, nominate a Radiation Protection Supervisor and complete a radiation risk assessment. The Ionising Radiation (Medical Exposure) Regulations 2017 add the appointment of a Medical Physics Expert, justification and optimisation of each exposure, and documented training for referrers, practitioners and operators. A critical examination is required when the equipment is put into service. These duties sit with the employer.

Dental X-ray equipment is subject to routine quality assurance and periodic radiological testing under IRR17, alongside annual electro-mechanical inspection, with a critical examination required at installation. UK service providers commonly apply an annual radiological testing interval to hand-carried units, and your Radiation Protection Adviser sets the schedule. Warranty terms are set and issued by the seller or manufacturer, typically 12–24 months, with battery packs often warranted on a shorter cycle — confirm at quotation.