Kernal KN-4001 UV Phototherapy Cabinet System for Vitiligo and Psoriasis

Professional Whole-Body Phototherapy for Dermatology Institutions

Certification: FDA 510K cleared

The KN-4001 is a cabinet-style UV phototherapy system developed for whole-body light treatment in professional dermatology settings. It is positioned for institutions running structured, physician-guided phototherapy programs — including hospital dermatology departments, dedicated phototherapy centers, specialty dermatology clinics, and other skin treatment institutions that need a professionally configured system rather than a spot-treatment device.

The cabinet format, precision dosing controls, and case management software are built around clinical workflow needs: consistent dosing across sessions, full-body coverage, and documentation of individual patient treatment history.

Product demo: https://youtu.be/Gkdke4NBlTs?si=1VxuQ9id6UgcuZqL

Indications

The KN-4001 is positioned for phototherapy workflows involving:

• Vitiligo
• Psoriasis
• Eczema
• Pityriasis rosea

Treatment protocols and suitability should be determined by the treating physician based on the specific condition and patient.

Available Configurations

Unlike the full KN-4001 series (which includes A, A1, and B1 variants at higher lamp wattages), we carry two configurations:

Choosing between them:

• KN-4001B is a narrowband UVB-only setup, commonly used for psoriasis and other conditions where NB-UVB is the primary modality.
• KN-4001AB provides simultaneous UVA and UVB output from a shared cabinet, giving institutions flexibility to support PUVA-related and NB-UVB workflows depending on how the treatment protocol is structured, without needing two separate units.

Both configurations use the same cabinet body, control system, and touchscreen interface — the difference is strictly in lamp composition and the resulting treatment flexibility.

Light Source

Both models use Philips medical-grade lamps as the light source:

• UVB output: 311nm ±3nm (narrowband)
• UVA output: 368nm ±3nm (KN-4001AB only)

An internal reflector design is used to maintain high irradiation intensity and shorten treatment time per session.

Key Features

Whole-Body Treatment Cabinet Effective radiation area of approximately 49,000cm² ±10%, with a working distance of 20cm ±1cm — sized for full-body sessions rather than localized treatment.

Precision Dose and Time Control Microcomputer-based control allows treatment to be managed by dose or time, with real-time display of equipment working status throughout the session. This supports repeatable, protocol-consistent dosing across visits and across patients.

• Irradiation dose limits: UVA ≤20J/cm², UVB ≤5J/cm²
• Maximum exposure time: ≤30 minutes per session

8-Inch TFT LCD Touchscreen with Case Management The touchscreen interface includes case management functionality, allowing the system to support recordkeeping per patient. Hardware and software double-monitoring is built in as a safety redundancy layer during treatment.

Optional UV Intensity Monitoring An optional real-time UV intensity measurement system can be added, allowing the institution to verify actual irradiation output against expected levels — useful for quality assurance and consistent dosing over the lamp's service life.

Ventilation and Cooling System A scientific ventilation and cooling system is built into the cabinet to keep the treatment space comfortable, particularly relevant given sessions can run up to 30 minutes.

Anti-Interference Technology Proprietary anti-interference technology is built in to maintain normal equipment operation even in environments with strong magnetic fields — relevant for institutions with other electromagnetic equipment nearby (e.g., hospital settings).

Technical Specifications

Frequently Asked Questions

What skin conditions is the KN-4001 positioned for? The system is positioned for phototherapy workflows involving vitiligo, psoriasis, eczema, and pityriasis rosea in professional dermatology settings, as directed by the treating physician.

What's the difference between the AB and B models? The B model (KN-4001B) is UVB-only, using all 40 lamps for narrowband UVB output. The AB model (KN-4001AB) splits the 40 lamps into 20 UVA and 20 UVB, allowing combined or independent UVA/UVB output from one cabinet.

Is the KN-4001 intended for whole-body treatment? Yes. The cabinet structure and ~49,000cm² radiation area are designed for whole-body phototherapy sessions rather than localized/handheld treatment.

How is dosing controlled? Via microcomputer control, by dose or by time, with real-time display of equipment status during the session.

Does it include patient recordkeeping? Yes — the touchscreen includes case management functionality to support per-patient documentation.

ONE (1) YEAR LIMITED DEPOT WARRANTY 

1. Warranty Provider and Term

This warranty is provided and administered strictly by the manufacturer of this particular product, not by Medaza, Inc. The manufacturer warrants to the original purchasing entity ("Buyer") — including hospitals, clinics, and other licensed medical institutions within the United States — that the hardware product sold shall be free from defects in materials and workmanship under normal clinical use for a period of one (1) year from the date of shipment. This warranty is provided in addition to, and does not affect, any rights the Buyer may hold under applicable state or federal law.

2. Depot-Only Return Procedure

Warranty service is strictly a depot-return process conducted directly by the manufacturer of this particular product.

• First Step (Intake): To initiate a warranty claim, the Buyer must not contact the manufacturer directly. The Buyer must first contact Medaza, Inc. by email at contactusa@medaza-platform.com.
• Delegation: Upon receipt of the email, Medaza, Inc. — acting in its capacity as distributor — will delegate and coordinate the direct connection between the manufacturer (or the manufacturer's designated U.S. Initial Importer, where applicable) and the Buyer, facilitating return logistics and securing the required Return Merchandise Authorization (RMA) number.
• Shipment: No shipments will be accepted by the manufacturer's facility without an active, authorized RMA number. The product must be securely packaged in its original packaging (or equivalent protective packaging), with all patient-identifying information removed or de-identified in accordance with the Health Insurance Portability and Accountability Act (HIPAA) and other applicable privacy laws prior to shipment, and shipped directly to the designated service facility of the manufacturer.

3. Allocation of Shipping Costs (Two-Way Shipping)

The Buyer assumes full financial responsibility for all shipping logistics, packaging, handling fees, customs/tariffs, and insurance transit costs associated with the warranty claim. This includes:

• Inbound Shipping: The cost to safely transport the product from the Buyer's facility to the designated service location of the manufacturer.
• Outbound Shipping: The cost to return the repaired or replaced product from the manufacturer's facility back to the Buyer's designated location within the United States.

4. Recall & Systemic Defect Exception

The shipping cost allocation in Section 3 shall be waived solely in the event that the returned product is officially determined by the manufacturer, its designated U.S. Initial Importer, Medaza, Inc., or the FDA to be subject to a Recall, Safety Alert, or a verified batch-wide Systemic Manufacturing Defect, in accordance with 21 CFR Part 806 (Medical Device Reporting: Corrections and Removals) and related FDA recall procedures. In such extraordinary circumstances, the manufacturer will cover standard two-way ground shipping costs.

5. Warranty Exclusions

This warranty does not cover:

• Disposable clinical consumables (including but not limited to needles, sutures, applicators, and single-use accessories) once packaging is opened.
• Damage caused by accident, abuse, liquid spills, improper sterilization or disinfection, neglect, patient misuse, or unauthorized modifications or repairs.
• Damage resulting from use outside the manufacturer's labeled indications, intended use, or instructions for use (IFU).
• Normal wear and tear, consumable component degradation (e.g., lamps, filters, probes), or cosmetic degradation that does not affect device function or safety.
• Any device on which the serial number, UDI (Unique Device Identifier), or product identification label has been removed, altered, or defaced.

6. Adverse Event Reporting

Nothing in this warranty limits or replaces the Buyer's independent obligation, as a healthcare institution or professional user, to report device malfunctions, serious injuries, or adverse events involving this product to the manufacturer, to the manufacturer's designated U.S. Initial Importer (where applicable), to Medaza, Inc. as distributor, and, where required under 21 CFR Part 803 (Medical Device Reporting), to the FDA (e.g., via MedWatch). Medaza, Inc. will cooperate with the manufacturer, the Initial Importer, and the FDA on any resulting investigation, corrective action, or reporting obligation.

7. Distributor Obligations Notice

For this product, Medaza, Inc. acts solely as a distributor; a separate entity — not Medaza, Inc. — handles importation and fulfills any applicable U.S. Initial Importer obligations under FDA regulations for this manufacturer's products. As distributor, Medaza, Inc. confirms it verifies that the device bears the required labeling and UDI, that it is accompanied by the manufacturer's required documentation, and that appropriate storage and transport conditions are maintained while the product is under its responsibility. This warranty does not alter or diminish those regulatory obligations, nor does it impose importer obligations on Medaza, Inc.