IMPLANTABLE DEVICE FOR DETECTING A VESSEL WALL EXPANSION
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Abstract
An implantable device is described for detecting an expansion which is an elastic deformation of an intracorporeal vessel wall. The device comprises a support structure which contains dielectric polymer, has surface elasticity and can be applied directly or indirectly to the vessel wall, which provides at least one capacitive electrode arrangement, of which the assignable electrical capacitance can be influenced by an elastic deformation of the support structure. The electrode arrangement includes at least two electrodes each consisting of an electrically conductive polymer. The electrodes each define at least one side an intermediate space that influences the electrical capacitance of the electrode arrangement. The space is filled with the dielectric polymer of the support structure.
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Citations
41 Claims
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1-14. -14. (canceled)
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15. An implantable device for detecting an expansion of an intracorporeal vessel wall, comprising:
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a support structure containing a dielectric polymer having surface elasticity and being applied directly or indirectly to the vessel wall, at least one capacitive electrode arrangement of variable electrical capacitance influenced by an elastic deformation of the support structure, and an elasticity comparable to elasticity of the intracorporeal vessel wall; and
whereinthe electrode arrangement includes at least two electrodes each comprising an electrically conductive polymer which contacts at least one side of an intermediate space filled with the dielectric polymer that influences the electrical capacitance of the electrode arrangement, the support structure being flat and has an upper and lower side, the electrodes each comprising an electrically conductive polymer layer and a different one of the layers being applied respectively to the upper and lower sides. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 34, 36, 38, 40)
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31. An implantable device for detecting an expansion of an intracorporeal vessel wall, comprising:
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a support structure containing a dielectric polymer having surface elasticity and being applied directly or indirectly to the vessel wall, at least one capacitive electrode arrangement of variable electrical capacitance influenced by an elastic deformation of the support structure, and an elasticity comparable to elasticity of the intracorporeal vessel wall; and
whereinthe electrode arrangement includes at least two electrodes each comprising an electrically conductive polymer which contacts at least one side of an intermediate space filled with the dielectric polymer that influences the electrical capacitance of the electrode arrangement, the support structure being flat and has an upper and lower side, the electrodes each comprising an electrically conductive polymer layer and a different one of the layers being applied respectively to the upper and lower sides; and that the at least two electrodes are disposed in a first plane extending between the upper and lower side, being oriented parallel to the upper and lower side, being spaced apart laterally to one another in the plane and being surrounded by the dielectric polymer of the support structure. - View Dependent Claims (32, 33, 35, 37, 39, 41)
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Specification