Multiple optical fiber event sensor and method of manufacture
First Claim
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1. A multiple optical fiber event sensor apparatus, comprising:
- a semi-permeable tubular sleeve having proximal and distal ends;
a plurality of optical fiber gas sensors, each having a distal end bearing a sensor module, said sensor modules being disposed within said sleeve in axially staggered relationship; and
a semi-permeable polymeric matrix having a hydrophobic portion surrounding said sensor modules of said gas sensors for fixing the position of said sensor modules within said sleeve and substantially filling said sleeve; and
a rounded tip formed of said polymeric matrix extending beyond the distal end of said sleeve.
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Abstract
The multiple optical fiber event sensor apparatus includes a semi-permeable tubular sleeve, and a plurality of individual optical fiber event sensor modules within the sleeve arranged in an axially staggered relationship. A rounded tip is also provided on the distal end of the sleeve. The device provides for a multiplicity of individual sensors incorporated in a single tubular sleeve which minimizes cross-interference and thrombus formation when used as an intravascular multi-sensor.
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Citations
19 Claims
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1. A multiple optical fiber event sensor apparatus, comprising:
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a semi-permeable tubular sleeve having proximal and distal ends; a plurality of optical fiber gas sensors, each having a distal end bearing a sensor module, said sensor modules being disposed within said sleeve in axially staggered relationship; and a semi-permeable polymeric matrix having a hydrophobic portion surrounding said sensor modules of said gas sensors for fixing the position of said sensor modules within said sleeve and substantially filling said sleeve; and a rounded tip formed of said polymeric matrix extending beyond the distal end of said sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An intravascular multiple event sensor apparatus, comprising:
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a semi-permeable tubular member having proximal and distal ends; a plurality of optical fiber sensors including an oxygen sensor and a carbon dioxide sensor having proximal and distal ends, the distal ends of said optical sensors being disposed within said tubular member, each said optical fiber distal end having an event sensor module mounted thereon, said event sensor modules being disposed within said tubular member in axially staggered relationship; a hydrophobic semi-permeable polymeric matrix disposed within and extending to the distal end of said tubular member at least partially filling said tubular member, said event sensor modules being disposed within said hydrophobic matrix and fixing the position of said event sensor modules within said tubular member; and a hydrophilic semi-permeable polymeric matrix disposed on the distal end of said tubular member forming a rounded tip extending beyond the distal end of said tubular member. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of making a multiple optical fiber event sensor apparatus having a plurality of optical fiber gas sensors each having a distally mounted event sensor module, comprising the steps of:
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placing said event sensor modules of said optical fiber gas sensors within a semipermeable tubular sleeve in axially staggered relationship; fixing the position of said even sensor modules of said gas sensors within said sleeve by placing a semi-permeable polymeric potting matrix around said sensor modules; and forming a rounded tip extending beyond the distal end of the sleeve. - View Dependent Claims (17, 18, 19)
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Specification