MRT-compatible valve prosthesis for use in the human or animal body for replacement of an organ valve or a vessel valve
First Claim
1. A biological or artificial valve prosthesis for use in a human or animal body for replacement of an organ valve or a vessel valve, particularly a cardiac valve prosthesis or a venous valve prosthesis, with a supporting valve framework, with at least one valve and with at least one conductor loop which forms the inductance of an electrical resonance circuit,wherein at least one conductor loop forms the valve framework and/or the valve or supporting areas of the valve framework and/or supporting areas of the valve,wherein the valve framework and the valve are fixed by the conductor loop in a self-deployable or mechanically expandable stent, so that, in the case of compression and subsequent deployment, both the valve framework and the valve and also the conductor loop return to the desired form, position and geometry, and the conductor loop simultaneously serves to fasten the valve on the stent, wherein the resonant circuit has a resonant frequency, which corresponds to the frequency of an external magnetic field of an MR tomograph.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a biological or artificial valve prosthesis (4, 5) for use in the human or animal body for replacement of an organ valve or a vessel valve, in particular a cardiac valve prosthesis or venous valve prosthesis, with a stent (8) or without a stent, with a supporting valve framework, with at least one valve (7) and with at least one conductor loop (2) that forms the inductance of an electrical resonance circuit. In order to provide a simple and inexpensive valve prosthesis that can be viewed in the MR imaging technique and is also easy to implant, the invention proposes that the at least one conductor loop (2) forms the valve framework and/or the valve (7) or supporting areas of the valve framework and/or supporting areas of the valve (7).
9 Citations
10 Claims
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1. A biological or artificial valve prosthesis for use in a human or animal body for replacement of an organ valve or a vessel valve, particularly a cardiac valve prosthesis or a venous valve prosthesis, with a supporting valve framework, with at least one valve and with at least one conductor loop which forms the inductance of an electrical resonance circuit,
wherein at least one conductor loop forms the valve framework and/or the valve or supporting areas of the valve framework and/or supporting areas of the valve, wherein the valve framework and the valve are fixed by the conductor loop in a self-deployable or mechanically expandable stent, so that, in the case of compression and subsequent deployment, both the valve framework and the valve and also the conductor loop return to the desired form, position and geometry, and the conductor loop simultaneously serves to fasten the valve on the stent, wherein the resonant circuit has a resonant frequency, which corresponds to the frequency of an external magnetic field of an MR tomograph.
Specification