1. The 282mm “Short-Shaft” Advantage

Standard resectoscopes typically utilize a 302mm working length. While effective, the extra length can displace the center of gravity away from the surgeon’s hand, creating a lever effect that amplifies microscopic tremors and accelerates wrist fatigue. The Camjoy BRS107 is built specifically for the 4282.30 HD Endoscope (282mm).

This 20mm reduction in length fundamentally changes the instrument’s physics. It brings the fulcrum point closer to the urologist’s control hand, resulting in 1:1 motion transfer. Every subtle movement of the wrist is translated instantly and accurately to the loop electrode. This “Short-Shaft” design is particularly advantageous for:

• Asian Patient Demographics: Optimized for anatomies where a 302mm length is unnecessary.
• Precision Bladder Neck Incision (BNI): Where depth control is critical.
• Anterior Wall Resection: Offering better angulation and reach without awkward positioning.

2. High-Volume Continuous Flow Fluid Dynamics

Visibility is the cornerstone of safety in endoscopic surgery. The BRS107 features a robust Double-Sheath Continuous Flow System designed to maintain a clear operative field even during heavy bleeding. The system comprises:

• Outer Sheath (S2619-7): A generous 26.5Fr diameter with 360° fenestrations at the distal tip.
• Inner Sheath (S2420-7): A 24.5Fr diameter with a ceramic-insulated tip.

The gap between the 26.5Fr outer sheath and 24.5Fr inner sheath creates a large-volume evacuation channel. Clear saline flows in through the inner sheath directly onto the surgical site, while blood, tissue debris, and bubbles are rapidly sucked out through the outer sheath via the principle of convection. This maintains a constant low intravesical pressure, preventing bladder over-distension and fluid extravasation, while ensuring the camera lens remains clear of debris.

3. The S2401-7 Adjustable Obturator Innovation

One of the unique frustrations in urology is the mismatch between sheath lengths and obturators, leading to traumatic insertions. The BRS107 set includes the revolutionary S2401-7 Adjustable Obturator. Unlike fixed-length obturators, this device features a variable locking mechanism that allows the surgeon to fine-tune the protrusion of the obturator tip relative to the sheath beak.

This ensures a perfectly smooth transition from the instrument to the urethra, minimizing mucosal injury during insertion (stricture prevention). Whether using the sheath in a standard configuration or with different bridge adaptors, the adjustable obturator guarantees a trauma-free entry every time.

4. Quick-Release “Click-Lock” Architecture

Time efficiency in the operating room is vital. Traditional resectoscopes rely on rotating locking cones or screw mechanisms to secure the working element to the sheath. These can become jammed with debris, difficult to operate with wet gloves, or loosen during the procedure, causing the optic to rotate unexpectedly.

The BRS107 employs a Spring-Loaded Click-Lock System.

Assembly: Simply push the working element into the sheath until you hear a distinct “Click.” The instrument is now mechanically locked in a fixed orientation.

Disassembly: Press the ergonomic release button with one thumb to instantly separate the components.

This mechanism eliminates rotational play, ensuring that the telescope’s 30° view always aligns perfectly with the surgeon’s cutting loop orientation.