The IUI catheters are used for insertion of prepared spermatozoa into the uterine cavity. The IUI catheters are available in various lenghts and various grades of rigidity. The opening of the IUI catheters is at the rounded tip. This allows the maximum aspiration of the spermatozoa from the bottom of the preparation tubes, espacially in those cases where there is a limited number of spermatozao available. In case of specific needs IM Services can customize the catheter. The products may only be used by adequately trained personnel in IUI procedures.