US Patent 7083598 Transcutan catheter assembly

A transcutan catheter assembly including a catheter having a distal end and a proximal end, and a collar of a relatively flexible material having an upper surface and a lower surface. The catheter extends in a fluid tight manner through the collar such that the distal end of the catheter protrudes underneath the lower surface of the collar and its proximal end is accessible at the upper surface for the connection of tubing to the catheter. The lower surface of the collar has adhesive properties for fluid tight attachment to the skin of a patient.