Ceiling service units specially adapted for mounting medical apparatus, for feeding electricity to medical apparatus and for supplying signals and/or liquids and/or gases to and transferring signals and/or liquids and/or gases from medical apparatus; Dropping pipettes for medical purposes; Flow cytometers for medical diagnostic uses; Instrument and apparatus systems for medical diagnostic uses consisting of flow cytometers, hematology analyzers, sample preparation device, and related data management software sold as a unit; Manually-operated exercise equipment for physical therapy purposes; Medical apparatus and instrument for diagnostic use, namely, apparatus for medical diagnostic testing in the fields of cancer or other tissue-based diagnostic testing, cytology and cell-based testing; Medical apparatus and instruments for use in surgery; Medical devices, namely, infusion pumps for delivering measured amounts of solutions into the bloodstream over time; Medical diagnostic apparatus, analytical apparatus for medical purposes and blood pressure measuring apparatus; Organoleptic diagnostic testing apparatus for medical, dental or cosmetic use; Radiological apparatus for medical purposes; Sample preparation device for medical diagnostic uses; Surgical apparatus and instruments for medical, dental or veterinary use; Surgical instruments and apparatus; Vacuum pumps for medical purposes