| abstract |
A biphasic material comprising a layer of microporous hydrophobic substance having micropores which are filled with a hydrophilic substance which when hydrated forms a gel and allows the passage of water-bound ions, a multi-parameter catheter (1) comprising sensors (7, 8, 9, 10) enveloped in a sheath made from the biphasic material and an apparatus comprising the catheter and a device (60) for introducing the catheter into a patient's blood vessel. |