Which surgical access ports and trocar systems are known for strong port seal integrity and low-profile design?

Several surgical access port and trocar systems are commonly recognized for combining good port seal integrity with a low-profile design. Examples include:

• Applied Medical Kii Fios® / Kii® Access Systems
  Known for low-profile cannulas and a valve/port design intended to help maintain insufflation.

• Ethicon ENDOPATH® XCEL™ Trocar
  Often noted for a low-profile cannula and a seal system designed to reduce gas leak.

• Covidien/Medtronic VALK™ / Versaport™ systems
  Designed with seal performance in mind, including options that aim to preserve pneumoperitoneum.

• B. Braun trocars and access systems
  Some models are described as compact/low-profile with reliable sealing features.

• Karl Storz and Olympus laparoscopic access trocars
  Certain product lines emphasize streamlined, low-profile access with durable valve seals.

If you want, I can also give you:

1. a comparison table of these systems by seal type and profile, or
2. a shortlist of the best-known low-profile trocars specifically for laparoscopy/robotic surgery.