Biomedical pressure sensor
AssigneesSomni Corporation B.V., Millar Inc.
InventorsAnne STOKER, Germán Enrique KNOPPERS
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Abstract
A biomedical pressure sensor for measuring the pressure in a fluid includes an optical fiber having at least one measurement section arranged at a distance from a distal end of the optical fiber. The biomedical pressure sensor further includes a deforming member on the outer surface of the optical fiber at the location of the measurement section that is arranged for locally deforming the optical fiber under the influence of the applied pressure of the fluid to be measured. The measurement section is arranged for measuring said local deformation of the optical fiber.
Claims21
1-39. (canceled)
A biomedical pressure sensor for measuring the pressure in a fluid, comprising:
- an optical fiber having at least one measurement section arranged at a distance from a distal end of the optical fiber, and
- a deforming member on the outer surface of the optical fiber at the location of the measurement section that is arranged for locally deforming the optical fiber under the influence of the applied pressure of the fluid to be measured,
- wherein the measurement section is arranged for measuring said local deformation of the optical fiber.
A catheter comprising:
- a biomedical sensor for measuring the pressure in a fluid, wherein the biomedical pressure sensor comprises an optical fiber having at least one measurement section arranged at a distance from a distal end of the optical fiber, wherein the biomedical pressure sensor further comprises a deforming member on the outer surface of the optical fiber at the location of the measurement section that is arranged for locally deforming the optical fiber under the influence of the applied pressure of the fluid to be measured and wherein the measurement section is arranged for measuring said local deformation of the optical fiber,
- wherein the catheter is an elongated member surrounding the optical fiber over at least the largest part of the optical fiber in the axial direction, and
- wherein the catheter is arranged to be inserted in a body.
A method for measuring pressure of a fluid, comprising:
- providing a biomedical pressure sensor for measuring the pressure in the fluid, wherein the biomedical pressure sensor comprises an optical fiber comprising at least one measurement section arranged at a distance from a distal end of the optical fiber, wherein the biomedical pressure sensor further comprises a deforming member on the outer surface of the optical fiber at the location of the measurement section arranged for locally deforming the optical fiber under the influence of the applied pressure of the fluid to be measured and wherein the measurement section is arranged for measuring said local deformation of the optical fiber;
- projecting light in one end of the optical fiber;
- and
- measuring the light reflected.
Dependencies are inferred from the claim text.