3 results about "Oxygen Measurement" patented technology

This invention provides an interventional guidewire device for measuring intravascular oxygen saturation, belonging to the field of interventional surgical medical device technology. The guidewire device includes a guidewire body, a first oxygen measurement unit, and a second oxygen measurement unit. The guidewire body has a filamentous structure with a distal end and a proximal end. The first oxygen measurement unit is positioned at a predetermined distance from the distal end of the guidewire body and is used to measure oxygenation data at the distal end of the thrombus. The second oxygen measurement unit is positioned proximal to the first oxygen measurement unit and spaced at a predetermined distance from it, and is used to measure oxygenation data at the proximal end of the thrombus. During operation, the distal end of the guidewire body passes through the thrombus, with the first oxygen measurement unit positioned at the distal end of the thrombus and the second oxygen measurement unit positioned at the proximal end of the thrombus to measure oxygenation data at both ends of the thrombus. This invention primarily addresses the technical problem in existing technologies where it is impossible to assess oxygenation levels at the proximal and posterior ends of the thrombus before mechanical thrombectomy.

The present invention relates to an exhaust gas oxygen measurement device provided to measure oxygen in exhaust gas discharged from a semiconductor process and the like, and an exhaust gas oxygen measurement system having same. According to the present invention, the exhaust gas oxygen measurement system comprises an exhaust gas oxygen measurement device, and the exhaust gas oxygen measurement device comprises: a pipe connection body, which is provided on an exhaust pipe and has connection ports at both sides thereof; an oxygen measurement sensor, which is provided at a one-side connection port side of the pipe connection body so as to emit light, thereby measuring an oxygen concentration with reflected light; a reflection device provided at the other-side connection port side of the pipe connection body so as to reflect the light emitted from the oxygen measurement sensor; a protection member composed of a first protection member for protecting the oxygen measurement sensor from exhaust gas and a second protection member for protecting the reflection device; and an exhaust gas blocking member composed of a first blocking valve and a second blocking valve that are provided to open and close the connection ports at both sides.