Evaluation: Stryker 1688 AIM 4K Surgical Video System
November 7, 2019 | Evaluations & Guidance
- The 1688 AIM 4K system is a Native 4K surgical video system that provides 4K ultra-high-definition (UHD; 3840 × 2160 pixels) surgical video images. ("Native 4K" video is acquired with a 4K camera chip, and the image is retained in 4K format throughout the video chain.)
- The 1688 AIM 4K system offers two advanced imaging techniques: a) Spy NIR fluorescence imaging allows surgeons to see indocyanine green (ICG) dye, which is typically injected into the patient's blood. The light source excites the ICG with NIR radiation, causing it to fluoresce; the camera is then able to detect the output and display it visibly on the screen. This feature is most commonly used to assess tissue perfusion after anastomosis and to identify the bile ducts. Since it takes ICG several minutes to enter the bile, it is typically injected preoperatively for biliary procedures. Spy includes three visualization modes:
- Endoscopic Near-Infrared Visualization (ENV), as introduced on the Stryker 1588 AIM platform. This mode overlays green NIR fluorescence on a grayscale image. See Figure 2.
- Overlay, as introduced by Novadaq (later acquired by Stryker). This mode overlays green NIR fluorescence on a white-light image (i.e., a standard HD video image with non-NIR lighting), enabling the surgeon to see white light and NIR fluorescence images simultaneously. See Figure
- (3) Contrast mode, which displays a grayscale image of NIR fluorescence, with lighter grays indicating higher-intensity NIR fluorescence. See Figure
- b) The Infrared Illumination System (IRIS) allows surgeons to see infrared radiation output by special lighted ureteral stents to help visualize and identify the ureters. See Figure
- Stents are placed before the procedure by a qualified surgeon or urologist, according to facility protocol. This feature, also available on the 1588 AIM platform,...