Patent ID: 9668697
Date: 2017-06-06
CPC Classifications: A61B,A61M,A61N

Claim:
1. A catheter comprising: an elongated and axially rigid catheter body which has a distal end and a proximal end in respect of an operating position, wherein a deformable protection section of the catheter body, which is provided with predetermined deformation resistance, is disposed on the distal end, and a transducer element of a converter device for converting displacement into a non-mechanical quantity is provided on a distal end of the protection section, and a corresponding pick-up element of the converter device is provided in a stationary manner on a proximal end of the protection section, wherein the catheter body comprises a lead for transmitting a measurement signal generated by the converter device to the proximal end, and a measuring connector on the proximal end, wherein the transducer element comprises a light-emitting element, and the pick-up element comprises a photodetector element, wherein a flat color filter or a polarization filter is assigned to the light-emitting element, or to the photodetector element so that location information from the non-mechanical quantity is converted into frequency information or polarization information to deduce an extent to which displacement of the protection section occurs, wherein the light-emitting element comprises an elongated fiber-optic element guided in a spiral groove formed in an outer wall of a cylinder provided in the protection section of the catheter body, and wherein displacement of the protection section is deduced based on a point in time a light beam signal exiting the fiber-optic element is detected by the stationary photodetector element.