Dot Gmbh

Mischa Buhrmeister

Hans-Georg Neumann

Petra Becker

Marianne Teller

A method and apparatus for coating catheters or balloon catheters is disclosed in which the catheter or balloon catheter is radially surrounded completely or almost completely at a constant distance by a device that applies a coating solution so that the coating solution completely fills the space between the catheter or balloon catheter and the device and thus completely surrounds the catheter or balloon catheter, relative motion is effected between the device and the catheter or balloon catheter in the axial direction across the surface of the catheter or balloon catheter multiple times, and partial drying of the applied coating solution occurs between the individual coating stages.

Method and device for coating catheters or balloon catheters

A method for coating substrates with calcium phosphate. The aim of the method is to be able to carry out a simple coating for all materials as well as for particles. To this end, the substrate to be coated is placed in a calcium phosphate gel, whereupon this substrate that is coated with the gel is dried. Afterwards, the calcium phosphate particles not adhering to the substrate are removed. The substrate can also be placed inside a colloidal solution of SiOcontaining a calcium phosphate, whereupon the mixture is constantly set in motion, the solvent is removed, and the substrate is provided with a calcium phosphate layer by condensing the colloidal SiOon the surface of the substrate. The coated substrates can, particularly when it concerns coated particles, be used as a bone substitute material.

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Papendorf, Germany

Mischa Buhrmeister