Trocar seal also named as trocar seals, silicone trocar seal, trocar seal insert, medical grade silicone trocar seal and LSR injection molded trocar seal. In minimally invasive surgery, the trocar seal is a critical , high-precision component that secures the surgical safety. It directly determines both the stability of the pneumoperitoneum and the smoothness of instrument manipulation.
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Trocar Seal
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Trocar Seal
Trocar seal also named as silicone trocar seal, trocar seal insert, medical grade silicone trocar seal and LSR injection molded trocar seal.
In minimally invasive surgery, the trocar seal is a critical , high precision component that secures the surgical safety. It directly determines both the stability of the pneumoperitoneum and the smoothness of instrument manipulation.

Material Selection
We manufacture trocar cannula silicone seals using medical-grade silicone like Wacker R401 silicone. Because its physical and chemical properties are validated to meet ISO 10993 biological evaluation requirements for patient-contacting devices. High tear strength and elongation, allowing the silicone trocar reducer seal to flex around intruments of varying diameters while maintaining a gas-tight seal. As a leading trocar seal OEM manufacturer, we provide medical-grade trocar seals that are strictly
BPA-free and letex-free to ensure maximum patient safety.
Property | Standard Range | Testing Method/Compliance |
Material Base | 100% Platinum-cured LSR/ Medical grade silicone | ISO10993 |
Hardness (Durometer) | 30- 50 Shore A | ASTM D2240 |
Tear Strength | ≥ 35 N/mm | ASTM D624 |
Tensile Strength | ≥ 9.0 Mpa | ASTM D412 |
replacement silicone diaphragm
Silicone diaphragm valve
Application Overview
Laparoscopic port seal silicone serve as the primary barrier to secure the surgical field.
Laparoscipic Surgery: Secures the primary sealing barrier inside the trocar. It elimiates CO2 leakage during rapid instrument exchange (gaspers, scissors, staplers), maintaining a consistent abdominal cavity and a clear surgical field.
laparosopic seal membrane
minimally invasive surgery seal
Trocar Cannula & Robotic Assemblies: Acts as the primary seal inside the cannula head, optimized for both manual tools and robotic systems like DaVinci. It withstands high-frequency, multi-angle movements while providing ultra-low friction and long-lasting gas retention for immediate tactile feedback.

Endoscopic & Diagnostic Procedures: Provides a dependable fluid and gas barrier for thoracoscopy, hysteroscopy, and arthroscopy, ensuring pressure stability across varying surgical media.
Micro-Invasive Interventions: Optimizes small-bore trocars used for pellet implantation or micro-incisions. The high-elasticity seal reduces tissue trauma and lowers the risk of post-operative complications like port-site hernias.


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