Method and a device for examination of physical magnitude in humans or animals in an object filled with liquid or gas

摘要

The invention relates to a device for examination of a pressure (p) in an intervertebral disc, a body of vertebra or any other part of a disc in a human or animal. The device (1) comprises a hollow cannula (6) with an end portion (7) arranged to be inserted into the intervertebral disc, the body of vertebra or any other part of the disc. The device further comprises an optical fiber (8) arranged in the cannula (6) and a sensor device (10) arranged on the optical fiber (8), which in use is positioned in connection to the intervertebral disc, the body of vertebra or any other part of the disc. The device also has an injection device (11) for injection of liquid into the intervertebral disc, the body of vertebra or any other part of the disc through the cannula (6) while the sensor device (10) measures the physical magnitude (p) in the anatomical organ (2). The invention also relates to a method for examination of a pressure (p) in an intervertebral disc, a body of vertebra or any other part of a disc in humans and animals, designed in analogy to the device according to the invention.