Multiple optical fiber event sensor and method of manufacture

Details Multiple optical fiber event sensor and method of manufacture Multiple optical fiber event sensor and method of manufacture

G - Physics

01

N

G01N 21/84 (2006.01) A61B 5/00 (2006.01) G01N 21/77 (2006.01) G01N 21/78 (2006.01)

Patent

CA 2048869

MULTIPLE OPTICAL FIBER EVENT SENSOR AND METHOD OF MANUFACTURE ABSTRACT The multiple optical fiber event sensor apparatus includes a semipermeable generally cylindrical shaft, one or more optical fiber gas sensor modules within the shaft, and an optical fiber pH sensor module extending beyond the distal end of the shaft, with the sensor modules arranged in an axially staggered relationship. The shaft contains a potting matrix for axially fixing the position of the optical fibers, and includes a gas permeable portion surrounding the one or more gas sensor modules, and a hydrophilic portion covering at least part of the pH sensor module. A hemodynamically shaped, rounded distal end is also provided on the distal end of the shaft. The device provides for a multiplicity of individual sensors incorporated in a single shaft which minimizes cross-interference and thrombus formation when used as an intravascular multi-sensor.

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