Optical pressure monitoring system
First Claim
1. A method for monitoring pressure in an infusion set for administering solution to a patient, the method comprising:
- selecting an optical signal sensor having an optical signal emitter and an optical signal receiver; and
positioning a tube of an infusion set adjacent to the optical signal sensor so that changes in the diameter of the tube changes an amount of optical signals detected by the optical signal receiver.
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0 Petitions
Accused Products
Abstract
An optical pressure monitoring system includes a tube from an infusion set and an optical signal sensor disposed to detect changes in the diameter of the tube and thereby determine pressure changes within the tube. By selecting the position of the tube relative to the optical signal emitter and optical signal receiver, the optical signal sensor can both detect pressure changes and provide an integrity check for both the functioning of the optical signal sensor and the placement of the tube. By modifying the tube to exaggerate changes in tube diameter responsive to pressure changes, the sensitivity of the optical signal sensor can be increased.
157 Citations
40 Claims
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1. A method for monitoring pressure in an infusion set for administering solution to a patient, the method comprising:
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selecting an optical signal sensor having an optical signal emitter and an optical signal receiver; and
positioning a tube of an infusion set adjacent to the optical signal sensor so that changes in the diameter of the tube changes an amount of optical signals detected by the optical signal receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 32, 35)
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26. A method for controlling delivery of a solution through an infusion set driven by a pumping mechanism, the method comprising:
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selecting an optical signal sensor having an optical signal emitter and an optical signal receiver;
positioning an radially expandible tube of an infusion set adjacent to the optical signal sensor so that changes in the diameter of the tube associated with pressure changes cause changes an amount of optical signals detected by the optical signal receiver; and
adjusting the pumping mechanism to compensate for pressure changes detected. - View Dependent Claims (27, 28, 29, 30, 31, 33, 34)
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36. A method for monitoring pressure of a solution passing through an infusion set driven by a pumping mechanism, the method comprising:
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selecting an optical signal sensor having an optical signal emitter and an optical signal receiver;
positioning a tube of an infusion set adjacent to the optical signal sensor so that changes in the diameter of the tube associated with pressure changes cause changes an amount of optical signals detected by the optical signal receiver, and disposing a restrictive member along the tube to at least limit radial expansion in at least one direction, and thereby exaggerate expansion of the tube in at least one direction. - View Dependent Claims (37, 38, 39, 40)
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Specification