The B-K Medical Pro Focus 2202 is a 2D and 3D ultrasound scanner designed for diagnosis, data processing and transfer, guidance of puncture and biopsy, and ECG signal superposition. It is not intended for continuous operation.
Function Description
The Pro Focus 2202 provides real-time 2D and 3D ultrasound echo and flow imaging. It supports various scanning modes, including:
- B-mode (Brightness Mode): For real-time imaging of soft tissues, including harmonic imaging.
- Color Mode (CFM, Color Flow Mapping, Color Doppler Mode): Provides information about flow direction and velocity.
- Power Mode (Power Doppler Mode): Offers higher sensitivity to flow information, including directional Power Doppler.
- Doppler Mode (Spectral Doppler Mode): Displays the spectrum of flow velocities as a function of time.
- CW Doppler Mode (Continuous Wave Doppler): For information about high-velocity flow.
- M-mode: Provides information about tissue motion as a function of time.
The scanner can operate in combination modes (duplex and triplex scanning), allowing B-mode to be used with other modes like Color, Power, or M-mode. The system also supports Tissue Harmonic Imaging (TEH) to reduce noise and improve image clarity, based on the 2nd harmonic (2f) spectrum.
For 3D imaging, the system collects a data set of 2D ultrasound images (black & white or color) while tracking and storing the location of each individual 2D image. This data set is then reconstructed into a single 3D volume that can be displayed, manipulated (rotated, sliced, rendered), or shown in multiplane cross-sections. 3D imaging can be used with B-mode, Color mode, or Power mode scanning, but not with Doppler mode (spectral PW Doppler), CW Doppler, M-mode, Split-screen, Color mode (velocity + variance submode), Power mode (power + velocity submode), or ECG.
The ECG module enables synchronization of ultrasound image acquisition to the heartbeat and is available in B-mode, Color, Doppler, and M-mode.
Important Technical Specifications
- Scanning Modes: B-mode, B-mode + M-mode, B-mode + Tissue Harmonic Imaging, B-mode + Contrast Harmonic Imaging, B-mode + Doppler (steerable), B-mode + Color Flow Mapping (CFM) (steerable), B-mode + Power Doppler (Directional Power) (steerable), B-mode + Doppler + CFM (Triplex Mode) (steerable), B-mode + Doppler + Power Doppler (Triplex Mode) (steerable), B-mode + CW (continuous wave) Doppler (steerable).
- Transducer Center Frequency Range: Single-element transducers (5–10 MHz), 360° rotating single-element transducers (option) (5–20 MHz), Linear and convex array transducers (2–15 MHz).
- Monitor: 15" SVGA screen, 75Hz.
- Image Characteristics: Ultrasound image (512 x 480 pixels, 256 gray levels plus 256 colors), Graphics overlay (800 x 600 pixels, 32-bit true color), Presentation (images can be mirrored up/down and left/right).
- Sweep Speed: 2-14 seconds per screen.
- Size (zoom): 1 x 1cm to 25 x 25cm in tissue; number of steps and maximum size depend on the transducer.
- Frame Rate: >150 Hz (automatically optimized), depending on the transducer.
- Preprocessing: TGC (overall gain, fine gain), System dynamic range (>150dB), Gray scale conversion (10 scales), Color conversion (6 scales), Doppler conversion (5 scales).
- Focal Zones: Up to 25 transmit zones depending on transducer, up to 8 transmit zones for composite focus.
- Doppler (Pulsed Wave): Sample volume size (1–20mm), Units (cm/s or kHz), Flow inversion (Yes), Flow offset (Yes), Pulse Repetition Frequency (PRF) (1–15kHz), Wall filter (Digital filter, Cutoff frequency 1–10% of PRF), Detectable speed (0.13cm/sec–4.6 m/sec at 0°), Display (B/W or color FFT spectra, 256 levels), Frequency resolution (Max 7.8Hz (PRF=1kHz)), Time resolution (Max 4 msec), Angle correction (1° steps), Doppler audio output (2 x 1W).
- Power Doppler – Directional Power Doppler: Sample (Max 512 points), Pulse Repetition Frequency (0.2–12kHz), Wall filter (Digital filter).
- Color Flow Mapping – Variance Color Doppler: Sample (Max 512 points), Pulse Repetition Frequency (0.2–12 kHz), Wall filter (Digital filter, Cutoff frequency 1–10% of PRF), Detectable speed (0.1cm/sec–4.3m/sec at 0°), Display (Velocity: 256 colors; Velocity + variance: 128 x 32 colors; 6 different color scales), Color Doppler interleave factor (64 lines).
- Continuous Wave Doppler: Range (1.3–30kHz), Wall filter (Digital filter, Cutoff frequency 1–20% of PRF), Detectable speed (0.31cm/sec–9.2m/sec at 0°), Steerable Doppler (± 20°).
- Image Storage: Internal hard disk, CD-RW or USB storage device (option).
- Communication: RS232 serial channel, 3 x USB 2.0, 2 x IEEE1394a FireWire, 10/100 Ethernet.
- Isolated Auxiliary Power Outlets: 100–230V AC (equal to input voltage), max total output available for use 350 VA.
- Power Supply: Voltage (100–230V AC), Frequency (50–60Hz), Power consumption (900VA total, incl. 350VA isolated power outlet), Automatic circuit breakers (2).
- Operating Environment: Ambient operating temperature (10°C to 40°C), Humidity (max. 85% RH non-condensing), Atmospheric pressure (700 hPa and 1060 hPa).
- Noise during operation: <30dBA.
- Approximate Dimensions: Height (1410–1500mm adjustable), Width (530mm), Depth (780mm), Weight (77kg excluding transducers and printer).
Usage Features
- User Interface: The scanner is primarily controlled via a keyboard panel with an alphanumeric keyboard and special scanner control keys, a trackball with two Select keys and a +/- key, on-screen controls, and an optional Palm Control Unit (PCU) and foot switch.
- Adjustable Keyboard and Monitor: The monitor and keyboard panel can be adjusted for height and viewing angle to enhance operator comfort.
- Patient Management: The Patient window allows entry of patient information, including patient ID, and selection of Pro Packages and Diagnostic Setups. It supports retrieving patient information from a DICOM worklist (if installed).
- Image Settings: Users can adjust MI (Mechanical Index), scan depth, width, gain (overall and TGC), focus (single or multiple focal zones), dynamic range (contrast), zoom, panning, persistence, edge enhancement, line density, multibeam, resolution, B-mode frequency (MFI), B-mode gray scale, and B color.
- Doppler Adjustments: Controls for thermal index limit, MI, audio volume, Doppler indicator (position and size), trace overlay, steering, angle correction, gain, range (PRF), wall filter, invert spectrum, and sweep speed.
- 3D Imaging Controls: Options for viewing 3D data sets (Cube, Render, MIP, Transparency, 4-Up, 6-Up), enhancing views (brightness, contrast, hue, zoom), manipulating the volume (rotating, slicing, tilting, moving), and annotating views with labels and arrows.
- Measurements and Calculations: A variety of tools are available for B-mode, Color mode, and Doppler mode measurements, including distance, angle, ellipse, circle, polygon, and freehand drawing. The system supports various calculations, including gestational age (GA), fetal weight (FW), and expected date of confinement (EDC) based on different methods (Campbell, DSOG, Eik-Nes, Hadlock, Hansmann, Hobbins, Jeanty, Kurtz, Persson, Robinson, Shepard, Tokyo, Warsof). Real-time measurements (PS, ED, MD, PI, RI, HR, TAM, TAMX) are also available.
- Documentation: Documents (2D images, video clips, 3D data sets, reports) can be saved to the patient archiving system, viewed in the document browser, copied to CD or flash memory, archived to CD or PACS (if DICOM is installed), and printed to local or DICOM printers.
- Customization: Pro Packages, Diagnostic Setups, Doppler and M-mode screen layouts, user-defined keys, system settings (hospital name, language, video output format, date/time), clip storage, 3D setup, printer setup, measurements (user-defined, groups, curves), bodymarks, labels, and puncture guides can all be customized.
- Password Protection: The patient archive database can be password-protected to comply with HIPAA standards.
Maintenance Features
- Cleaning: The scanner unit, keyboard panel, PCU, transducers, and puncture attachments require regular cleaning. The keyboard panel is not watertight.
- Disinfection: B-K Medical recommends specific disinfection methods for the PCU (immersion, STERRAD®, STERIS SYSTEM 1®, Ethylene Oxide Gas) and provides guidelines for transducers and puncture attachments.
- Trackball Maintenance: The trackball can be adjusted for smooth movement and removed for cleaning using a special tool.
- Preventive Maintenance: Annual preventive maintenance by a B-K Medical technician or qualified engineer is recommended to ensure scanner stability and performance. This includes checking user comments, system modifications, scanner mobility, main functions, peripherals, and electrical safety.
- PCU Maintenance: The PCU should be checked by a B-K Medical service representative after every 150 disinfections by immersion.
- Brachy Matrix Alignment: The alignment of the brachy matrix should be checked monthly (or more frequently if misalignment is suspected) using a saline tank and needle.
- Storage: The scanner should be stored in a cool, dry place within specified temperature and humidity ranges.
- Disposal: National rules for material disposal must be followed when scrapping the scanner. Components like printed circuit boards, monitor picture tubes (heavy metals), and lithium batteries require specific consideration.
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