Views: 0 Author: Site Editor Publish Time: 2026-06-02 Origin: Site
In airway intubation visualization, minimally invasive cavity examination, ultra‑fine pipeline inspection, and medical teaching, imaging system selection often faces special constraints: compatibility with legacy analog medical monitors, a probe small enough to pass through narrow natural orifices, and capabilities such as waterproofing and dark‑field imaging. When the channel diameter is around 4mm and the display is an NTSC monitor, a module based on the OV6922 Camera Module featuring a 3.9mm IP67 waterproof steel‑sheathed probe, 98° wide angle, NTSC analog output, and 0‑lux dark‑field imaging becomes a professional solution worth evaluating. This guide provides a clear selection framework from five dimensions—physical size, environmental protection, image performance, interface compatibility, and typical applications—while incorporating keywords such as endoscope camera module, Wide Angle Camera Module, TV Interface Camera Module, 0.08MP Camera Module, mini Camera Module, OV6922 Camera Module, CMOS Camera Module, and Analog Camera Module to help you precisely match airway and micro‑cavity inspection needs.
Step 1: Precisely assess the minimum inner diameter and bend radius of the target cavity.
The probe dimensions are 3.9mm×20mm with a steel sheath reinforcement, representing an extreme miniaturization design among mini Camera Module products. Engineering significance:
Easily accesses human trachea, bronchi, nasal cavity, and urogenital passages with inner diameter ≥4.0mm, as well as industrial ultra‑fine pipes and medical device channels.
The 20mm rigid section maintains optical stability while still passing through anatomical curves such as the glottis; combined with a flexible cable, it enables deep exploration.
The IP67 waterproof steel sheath withstands disinfectant wipe‑down, body fluid contact, and short‑term immersion, meeting medical hygiene requirements.
When selecting, verify: Is the minimum cavity diameter ≥4.0mm? For sharply curved paths (e.g., main bronchus to lobar bronchus), evaluate the transition between the rigid section and flexible cable. Custom cable lengths are available for different clinical scenarios.
Step 2: Assess liquid contact, disinfection, and cleaning requirements.
The module features a stainless steel sheath with IP67 waterproof rating, fully dust‑tight and capable of withstanding immersion in 1 meter of water for 30 minutes. Medical value:
Suitable for contact with saliva, secretions, and irrigation fluids during bronchoscopy; can be soaked in enzymatic cleaning solution after use.
The steel sheath resists corrosion and impact, ideal for frequent clinical use.
Sealing prevents internal optics from fogging, ensuring long‑term imaging stability.
Note: IP67 is not suitable for high‑temperature autoclave sterilization (use ethylene oxide or low‑temperature plasma instead). Confirm compatible disinfection methods with the supplier. For single‑use scenarios, a disposable sheath can be added to reduce cross‑infection risk.
Step 3: Evaluate display device type and clinical detail requirements.
This module incorporates the OV6922 Camera Module (1/18‑inch CMOS Camera Module) with effective resolution 328×248 (approximately 0.08MP Camera Module), 200TV lines, making it an Analog Camera Module. Core value:
200TV lines are sufficient to clearly reveal tracheal mucosa color, carina morphology, foreign bodies, and secretions, meeting clinical needs for airway intubation and intracavitary lesion observation.
98° wide angle (characteristic of Wide Angle Camera Module) provides a broad field of view over the 10–60mm focus range, capturing the tracheal cross‑section in a single frame and reducing probe movement.
0‑lux dark‑field imaging (four high‑brightness white LEDs) delivers usable images in completely dark cavities without an external cold light source.
As a TV Interface Camera Module, it outputs NTSC composite video directly, seamlessly connecting to existing hospital analog monitors, operating room video systems, and recording equipment without digital conversion. When selecting, confirm: Does the target monitor support NTSC (most medical monitors support both NTSC and PAL)? For digital storage, add an external video capture card.
Step 4: Evaluate equipment power environment and system integration convenience.
This module supports 3–5V wide‑voltage operation with power consumption of only 0.1–0.4W, directly powered by an endoscope host auxiliary port or portable battery pack. Engineering value:
Low power reduces heat generation, suitable for long clinical procedures.
Standard NTSC signal cables (coaxial or shielded) have strong noise immunity and can transmit dozens of meters.
Plug‑and‑play – no drivers or software configuration, simplifying deployment for clinical engineers.
When selecting, confirm the host video input interface (BNC or RCA) and prepare appropriate adapter cables.
Application Scenario | Recommended Configuration | Key Rationale |
|---|---|---|
Tracheal intubation guidance | 3.9mm probe + disposable sheath | mini Camera Module passes the glottis; 98° wide angle clearly shows vocal cords and trachea; NTSC direct to anesthesia monitor |
Bronchoscopy | Long flexible cable + biopsy channel adapter | 0.08MP resolution sufficient to detect mucosal abnormalities; 0‑lux LED illuminates deep airways |
ENT nasal/ear examination | Short probe + handheld monitor | 3.9mm fits pediatric nasal cavities; IP67 allows alcohol wipe disinfection |
Industrial ultra‑fine pipeline inspection | Long cable + portable AV monitor | Steel sheath resists abrasion; Analog Camera Module has strong noise immunity for computer‑free field use |
Clinical teaching demonstration | Video distributor + large monitor | TV Interface Camera Module directly feeds into teaching video systems for real‑time demonstration |
The core value of the 3.9mm OV6922 NTSC analog output endoscope module lies in combining the plug‑and‑play convenience of an Analog Camera Module, the legacy compatibility of a TV Interface Camera Module, the wide coverage of a Wide Angle Camera Module, the 0‑lux dark‑field capability, and the medical‑grade protection of an IP67 waterproof steel sheath – providing a cost‑effective, high‑reliability analog vision solution for airway intervention, minimally invasive cavity inspection, and traditional medical display systems. When selecting, prioritize three questions:
Display type? For NTSC/PAL analog monitors, Analog Camera Module is the best choice; for computer storage, add a capture card.
Waterproofing/disinfection needed? Medical applications require IP67; dry industrial scenarios may use non‑waterproof versions to reduce cost.
Working distance within 10–60mm? Fixed focus requires no adjustment, ideal for typical cavity observation.
As a manufacturer with over 30 years of optical imaging experience, SincereFirst not only supplies standard endoscope camera module products but also customizes cable length, LED brightness, and disinfection compatibility according to your clinical needs. We recommend obtaining engineering samples before mass production and conducting accessibility, image clarity, and waterproofing tests in simulated or real airways to ensure your selection is both scientifically sound and forward‑looking.
