NEEDLE REMOVAL DETECTION DEVICE

• Main Authors: NISHIDE NAOKI, MIYAZAKI KAZUNORI, KOSEKI RYOJI, SHIOYAMA TADAO
• Format: Patent
• Language: English
• Published: 26.04.2007
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

PROBLEM TO BE SOLVED: To provide a small-sized easily-handleable needle removal detection device capable of inspecting existence of blood by one optical fiber, and having no possibility of electric shock. SOLUTION: Inspection light a from a laser oscillator (inspection light source) 1 enters the inside from a terminal 3a of the optical fiber 3, and goes out from the end face of a tip part 3b to the outside. In this case, a part of the inspection light is reflected from the end face of the tip part toward the inside of the optical fiber 3, and the reflected light a' is received by a light receiving means 4. When blood adheres onto the end face of the tip part of the optical fiber, a reflected light quantity is changed thereby, to thereby detect existence of blood by a detection means 5. COPYRIGHT: (C)2007,JPO&INPIT