Patent ID: 9084867
Filing Date: 2015-07-21
Classification: A61M,B29C,B29K,B29L

Abstract:
1. A method of injection moulding a catheter assembly comprising a catheter tube having a proximal end and a distal end, an insertable tip closing off the proximal end of the catheter tube and at least two drainage eyes arranged on the side walls of the catheter tube, the method comprising: providing a proximal single piece mould having an elongated cavity having a longitudinal axis and having a cylindrical shape defining an external surface of the catheter assembly, providing a core pin inside the cavity in the longitudinal axis of the elongated cavity, where the core pin is in the form of an inner lumen of the catheter assembly where the core pin has a distal end that is fixed in place and a proximal free end, providing a first and a second moulding member, each one of the first and the second moulding members having a fixed end and a free end, in a radial direction in relation to the longitudinal axis of the elongated cavity, where the elongated cavity is in the form of the external surface of the catheter tube and the catheter tip, and distally, a first half and a second half that mate each other longitudinally or vertically and define the mould cavity of a drainage outlet, such as a catheter connector, when assembled and separate longitudinally or vertically to expose the cavity, preparing the mould by arranging the free ends of the two moulding members to support the core pin, injecting a liquid catheter material into the mould, letting the liquid material solidify, withdrawing the two moulding members from the core pin in a radial direction away from the core pin, and removing the catheter assembly from the mould.