Richard Wolf knows that sharp, information-rich images during surgery are key to recognizing details and to safe, reliable diagnosis and treatment. As a system developer and imaging chain expert, Richard Wolf has therefore developed a range of camera systems with innovative video technology that deliver extremely fine, sharp images for every discipline. In this article we introduce Richard Wolf's proud fluorescence imaging solution for endoscopy, "System green」。
A real-time ICG/NIR fluorescence imaging solution that takes minimally invasive surgery further
ICG/NIR fluorescence imaging opens up new possibilities in minimally invasive surgery. Applications include locating lymph nodes in oncological surgery, identifying bile duct structures in fluorescence cholangiography, identifying sentinel lymph nodes in lymphadenectomy and bowel anastomosis.
How does fluorescence imaging work?
Fluorescence imaging uses a fluorescent substance called indocyanine green (ICG), also known as Verdye or Diagnostic Green, which can be used to image vascular perfusion during surgery. It is both hydrophilic and lipophilic and, when used with an NIR camera system, fluoresces and helps visualize anatomical structures.
When ICG enters the bloodstream, it binds immediately to plasma proteins and circulates in the vascular system. In the near-infrared (NIR) range, ICG absorbs light and emits fluorescence – this is the visible ICG fluorescence. ICG is well tolerated, completely cleared by the liver and excreted in the bile without being metabolized.
Richard Wolf's System green is an ICG/NIR camera system that detects and visualizes fluorescence during surgery, helping surgeons see structures more clearly.
Three System green modes for simultaneous ICG/NIR and white light endoscopy
1 – White light mode:
Supports standard white light endoscopy with high-resolution image quality even in white light mode.
2 – greenICG mode:
Combines the conventional white light image with ICG/NIR image information in real time, providing high detail and contrast so surgeons can easily distinguish tissue and anatomical structures.
3 – greenICG pure mode:
Provides specific high-contrast visualization, such as grayscale, to distinguish tissue structures more clearly and examine critical structures such as lymph nodes and lymphatic vessels in greater detail.
System green includes the following key components:
ENDOCAM Logic 4K camera controller
High-resolution endoscopic images in sharp 4K/UHD quality, with two special imaging modes providing additional ICG/NIR image information (white light and grayscale images).
ENDOLIGHT LED green
A silent, powerful, laser-free LED light source provides perfect illumination and automatically adjusts NIR and white light intensity for clear fluorescence imaging, whatever the ICG concentration.
Logic camera head
Ergonomic, light and easy to handle, with a dedicated NIR sensor for high fluorescence sensitivity.
PANOVIEW ULTRA telescopes
4K/UHD telescopes optimized for ICG/NIR applications deliver bright, sharp, precise images and a longer service life.
Fused fiber light cable
High light transmission for even illumination, high temperature resistance, improved flexibility and steel kink protection for easier handling.
Richard Wolf also offers the "RIWO AR" app: download it to your phone or tablet to view a 3D model of System green. If you are interested, you can download the app at the bottom of the System green product page. If you have any questions, please contact us directly – our locations in China are listed on the Richard Wolf China Sales and Service Network page.
