Biopsy instrument to measure cellular contamination in a tooth and root canal; Endodontic apparatus to detect cellular debris in a root canal; Medical apparatus and instrument for diagnostic use, namely, apparatus for medical diagnostic testing in the field of endodontics or other tissue-based diagnostic testing, cytology and cell-based testing; Medical instruments for analyzing and identifying bacteria

endoscopic surgical instruments; namely, a device securable to an insufflation instrument insertable through the abdominal cavity, for confirming the presence of negative pressure within said abdominal cavity during endoscopic surgical operations within said cavity