Der ultimative Leitfaden für minimal-invasive Wirbelsäulenchirurgie (MISS) Instrumente: PELD & PESS mit Camjoy beherrschen
The Ultimate Guide to Spine Endoscopy Instruments
Everything you need to know about PELD, PESS, and the precision tools that make them possible. A technical deep-dive for modern neurosurgeons.
Table of Contents
1. The Rise of Minimally Invasive Spine Surgery (MISS)
The transition from open laminectomy to Endoscopic Spine Surgery represents one of the most significant advancements in orthopedics. Traditionally, treating a herniated disc involved dissecting large muscle groups, removing significant bone (lamina), and retracting nerve roots—all of which contributed to postoperative pain and instability.
Percutaneous Endoscopic Lumbar Discectomy (PELD) changes this paradigm. By utilizing a keyhole incision (< 8mm) and a targeted approach, surgeons can remove the pathology while preserving the multifidus muscle and the structural integrity of the spine.
2. Anatomy of a Spine Endoscope
A spine endoscope is not just a camera; it is a complex multi-channel device. Understanding its construction is key to choosing the right tool.
2.1 The Optical System
Camjoy scopes utilize a Rod Lens System (unlike the fiber bundles used in flexible scopes). Glass rods transmit the image with minimal loss of brightness or resolution.
- Sapphire Window: The distal tip is sealed with sapphire glass, which is scratch-resistant against bone contact.
- Light Fibers: Surrounding the rod lens are high-transmission optical fibers that carry light from your LED Light Source to the surgical field.
2.2 The Working Channel
This is the "tunnel" through which all instruments pass. The eccentricity of the working channel is designed to maximize space.
- Standard Channel (3.7mm): Used in Transforaminal scopes for standard forceps.
- Large Channel (4.3mm+): Used in Interlaminar scopes to accommodate large burrs and punches.
3. Transforaminal vs. Interlaminar Systems
There is no "one size fits all" in spine surgery. Camjoy offers two distinct systems tailored to specific surgical approaches.
3.1 Transforaminal Endoscopic Surgical System (TESSYS Style)
The Lateral Approach. This is the classic PELD approach. The scope enters through the intervertebral foramen.
| Parameter | Specification |
|---|---|
| Direction of View (DOV) | 30° |
| Outer Diameter | 6.3mm / 7.5mm |
| Working Length | Longer (~205mm) to reach from the flank. |
| Best For | L1-L5 Disc Herniations, Foraminal Stenosis. |
3.2 Interlaminar Endoscopic Surgical System (iLESSYS Style)
The Posterior Approach. Used when the iliac crest blocks the lateral entry (L5-S1) or for central canal stenosis.
| Parameter | Specification |
|---|---|
| Direction of View (DOV) | 30° (Wide Angle) |
| Working Channel | Extra Large (>4mm) to allow rapid fluid outflow. |
| Working Length | Shorter (~170mm) as the lamina is closer to the skin. |
| Best For | L5-S1 Herniations, Ligamentum Flavum Hypertrophy. |
4. Essential Hand Instruments
The success of the surgery depends on the mechanical quality of the graspers and punches. Camjoy instruments are crafted from high-grade hardened stainless steel.
4.1 Nucleus Forceps (Graspers)
Designed to grab and remove the herniated nucleus pulposus.
- Straight Forceps: For disc material directly in front of the scope.
- Curved Forceps: To reach around the corner of the annulus.
- Serrated Jaws: Essential for gripping the slippery, fibrous disc material.
4.2 Kerrison Rongeurs (Punches)
The most critical tool for bone resection (Laminectomy/Foraminoplasty). Camjoy offers a Detachable Design.
4.3 Articulating (Flexible) Forceps
Sometimes the pathology is "hiding" behind the nerve root. Articulating forceps have a dial on the handle that curves the tip up to 90 degrees, allowing safe retrieval of fragments from the axilla zone.
5. Advanced Energy: Bipolar RF & Drills
5.1 Bipolar Radiofrequency (RF) Electrodes
In a fluid environment, standard monopolar cautery is dangerous and ineffective. Camjoy Trigger-Flex RF Probes use bipolar energy.
- Hemostasis: The plasma field instantly seals epidural veins.
- Tissue Ablation: Vaporizes soft tissue at lower temperatures (40-70°C) than standard cautery, protecting the nerve root.
- Annuloplasty: Used at the end of surgery to shrink the annulus hole.
Models available: E4014090A (90° tip), E3912040B (40° tip).
5.2 Endoscopic Bone Drills
For stenosis, bone must be removed. We offer:
- Diamond Burrs: Grind bone into fine dust. Safe to use near the dura.
- Carbide Cutting Burrs: Aggressive bone removal for the initial laminotomy.
6. Sterilization & Maintenance Protocols
Protecting your investment is crucial. Spine endoscopes are delicate.
Step-by-Step Cleaning Guide
- Pre-Cleaning (In O.R.): Immediately flush the working channel with distilled water. Do not let blood dry.
- Manual Cleaning: Disassemble all detachable instruments. Use the long cleaning brush to scrub the inside of the scope channel.
- Ultrasonic Cleaning: ONLY for solid metal instruments (forceps, punches). NEVER put the optical endoscope in an ultrasonic cleaner—it will shatter the rod lenses.
- Sterilization:
- Autoclave: 134°C (273°F) for 5-18 minutes. Use a dedicated tray with silicone fingers to hold the scope secure.
- Plasma / ETO: Recommended for maximizing the lifespan of the optics.
7. Why Choose Camjoy?
For years, hospitals were forced to pay premium prices for German or American brands. Camjoy disrupts this model.
- ISO 13485 Certified: We adhere to the strictest medical manufacturing standards.
- Open Architecture: Our systems are compatible with Universal Camera Heads and light cables (Storz/Wolf adapters included).
- Complete Solution: From the Tower (Monitor, Camera, Pump) to the smallest RF Probe, we supply it all.
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