Sealing member

A method of establishing a medical fluid connection in an intravenous infusion catheter system between a first medical connector and a second medical connector with enhanced contamination prevention, the method comprising:

• providing a first medical connector comprising a male luer end having a male luer and a shroud surrounding at least a portion of the male luer,
• providing a second medical connector comprising a complimentary end being configured to fluidly connect to the male luer end of the first medical connector,
• providing an elastomeric sealing member being configured to engage with an outer surface of the shroud of the first medical connector to form a first seal between the elastomeric sealing member and the shroud, the elastomeric sealing member including a middle section with opposing side portions extending wider than the shroud of the first medical connector, the middle section configured to be pinched to open an end of the elastomeric sealing member to facilitate passage of the second medical connector;
• and
• connecting the complimentary end of the second medical connector to the male luer end of the first medical connector to establish fluid tight communication between the first medical connector and the second medical connector, wherein the elastomeric sealing member seals against the second medical connector to effect the enhanced contamination prevention between the first and second medical connectors in an intravenous infusion catheter system.