BMizar BM-400K
Abstract
The BMizar (BM-400K) showcases the industry's most powerful OCT "engine" with a 400 kHz swept-source. Its exceptional optic design elevates the experience of OCT Angiography to an unprecedented level, covering an incredibly large area in a single scan — achieving a 24 mm width OCTA in just 7–15 seconds
Core OCT Engine
| Parameter | Value |
|---|---|
| OCT Type | Full-Range Swept-Source OCT (SS-OCT) |
| OCT Center Wavelength | 1060 nm |
| Scan Speed | 400,000 A-scans/sec |
| Axial Optical Resolution | ≤ 6 µm (brochure spec) / 3.8 µm (some distributor specs) |
| Transverse Optical Resolution | 10 µm |
The BMizar uses a swept-source at 1060 nm OCT wavelength with a fundus wavelength of 840 nm SLO, achieving 400,000 A-scans/second, with an axial resolution of 3.8 microns and a lateral resolution of 10 microns.
Scanning & Imaging Parameters
| Parameter | Value |
|---|---|
| Max Scan Length (Posterior) | 24 mm |
| Max Scan Length (Anterior) | 24 mm |
| Scan Depth (Posterior) | 6 mm |
| Scan Depth (Anterior) | 6 mm |
| Max Single Scan Size (Anterior) | 18 mm × 18 mm |
| Max Single Scan Size (Posterior) | 24 mm × 20 mm |
| Max Scan Size (Montage) | 42 mm × 40 mm |
| Maximum Resolution (Single Scan) | 1536 × 1280 pixels |
| Refractive Adjustment Range | −35D to +45D |
| OCTA Interval | 15.6 µm |
The official brochure confirms: max single scan size (posterior) of 24 mm × 20 mm, maximum resolution of 1536 × 1280, montage scan up to 42 mm × 40 mm, and a refractive adjustment range of −35D to +45D.
SLO (Scanning Laser Ophthalmoscopy) System
| Parameter | Value |
|---|---|
| SLO Wavelength | 850 nm |
| SLO Field of View | 60° × 60° |
| Minimum Pupil Diameter | 2.0 mm |
| Eye Tracking Speed | 128 Hz |
Performance vs. Standard OCT
The BMizar offers a 24 × 20 mm ultra-wide field OCTA, compared to typical 6 × 6 mm or 8 × 8 mm scans in standard OCT systems. At 400,000 A-scans/sec, it is 4 times faster than 100,000 A-scans/sec systems, allowing for denser scans and reduced motion artifacts. With ten billion voxels, it provides significantly higher resolution than standard OCT systems, revealing finer details of retinal and choroidal structures.
Clinical Applications
This revolutionary technology is a game changer for clinical practices, particularly in the diagnosis and treatment of diseases such as diabetic retinopathy (DR), retinal vein occlusion (RVO), retinal artery occlusion (RAO), and more.
Software functions include:
- Anterior segment (AS) quantification
- Glaucoma analysis (optic nerve and ganglion cells) in a single capture with normative database
- Proprietary choroidal OCTA algorithms
- Retinal curvature radius analysis
- iSpot function for diabetic laser treatment follow-up
Animal Research Capability
The huge dioptric adaptive range makes all types of OCT/OCTA scans feasible for small animals such as rabbits, cavies, and even mice, with no need for additional lenses.
Regulatory & Classification
The BMizar (BM-400K) is classified as an Ophthalmic Optical Coherence Tomography System, a Class IIA medical device, manufactured by TowardPi (Shanghai) Medical Technology Ltd., with CE marking under number 2797.
Visreed