Method and device for coating a medical invasive component

An apparatus for coating a medical invasive component having a longitudinal axis and a lateral face which is rotationally symmetrical about the longitudinal axis and extends longitudinally in a straight manner, the apparatus comprising

• a rotation device which is configured to clamp the invasive component and rotate the latter in a driven manner about its longitudinal axis at a defined rotational speed,
• an application device which is rotationally immovable relative to the longitudinal axis and which is configured to apply a viscous coating solution onto the lateral face of the rotating invasive component at a defined application rate,
• a linear movement device which is configured for driven relative linear movement between the application device and the rotation device at a defined speed of advance along the longitudinal axis of the rotating invasive component,
• a control device which is configured to control the rotational speed of the rotation device, the application rate of the application device and the speed of advance of the linear movement device,
• wherein the control device is configured to control the rotational speed, the application rate and the speed of advance in a coordinated manner depending on the viscosity of the viscous coating solution, such that the viscous coating solution can be applied over the full surface of the lateral face in the form of a helix which overlaps along the longitudinal axis.

A method for coating a medical invasive component having a longitudinal axis and a lateral face which is rotationally symmetrical about the longitudinal axis and extends longitudinally in a straight manner, the method comprising the following steps:

• clamping the invasive component into a rotation device;
• rotating the clamped invasive component by means of the rotation device, the rotation taking place at a defined rotational speed;
• applying a viscous coating solution to the lateral face of the rotating invasive component, wherein the viscous coating solution is applied by means of an application device, which is rotationally immovable relative to the longitudinal axis, and at a defined application rate;
• linearly moving the application device and/or the rotation device along the longitudinal axis of the rotating invasive component, wherein the application device is moved linearly by means of a linear movement device and at a defined speed of advance relative to the rotation device, and/or vice versa;
• controlling the rotational speed, the application rate and the speed of advance by means of a control device,
• wherein the rotational speed, the application rate and the speed of advance are controlled in a coordinated manner depending on the viscosity of the viscous coating solution, such that the viscous coating solution is applied over the full surface of the lateral face in the form of a helix which overlaps along the longitudinal axis.