Abstract: The presently claimed invention relates to a method for obtaining crystalline diethylamino hydroxybenzoyl hexyl benzoate. Further, the presently claimed invention relates to crystalline diethylamino hydroxybenzoyl hexyl benzoate obtained by the method and to a cosmetic composition comprising crystalline diethylamino hydroxybenzoyl hexyl benzoate. The crystalline diethylamino hydroxybenzoyl hexyl benzoate obtained by the method of the presently claimed invention has a phthalic acid dihexyl ester (PSDHE) content in the range of 1 to 250 ppm.

Abstract: The invention relates to a process for working up water containing 4,4?-dichlorodiphenyl sulfoxide and/or 4,4?-dichlorodiphenyl sulfone as impurities, comprising: (a) mixing the water containing 4,4?-dichlorodiphenyl sulfoxide and/or 4,4?-dichlorodiphenyl sulfone as impurities with an organic solvent in which 4,4?-dichlorodiphenyl sulfoxide and/or 4,4?-dichlorodiphenyl sulfone have a solubility of at least 0.5 wt % based on the amount of 4,4?-dichlorodiphenyl sulfoxide and/or 4, 4?-dichlorodiphenyl sulfone and organic solvent at 20° C., which forms a two-phase system with water and which can be stripped from water with a stripping gas and subsequently separating the obtained mixture into an aqueous phase and an organic phase, and (b) stripping the organic solvent from the aqueous phase with a stripping gas.

Abstract: The invention relates to a process for purifying crude 4,4?-dichlorodiphenyl sulfone comprising: (a) dissolving the crude 4,4?-dichlorodiphenyl sulfone which may contain water in an organic solvent in which 4,4?-dichlorodiphenyl sulfone has a solubility of 0.5 to 20% at 20° C. and optionally adding water to obtain a solution which comprises 4,4?-dichlorodiphenyl sulfone, the organic solvent and 1 to 30 wt % water based on the amount of 4,4?-dichlorodiphenyl sulfone and water; (b) cooling the solution to a temperature below the saturation point of 4,4?-dichlorodiphenyl sulfone to obtain a suspension comprising crystallized 4,4?-dichlorodiphenyl sulfone; (c) carrying out a solid-liquid separation to obtain residual moisture containing 4,4?-dichlorodiphenyl sulfone and a mother liquor; (d) washing the residual moisture containing 4,4?-dichlorodiphenyl sulfone with an organic solvent in which 4,4?-dichlorodiphenyl sulfone has a solubility of 0.5 to 20% at 20° C.

Abstract: The invention relates to a process for purifying 4,4?-dichlorodiphenyl sulfone comprising: (a) providing a suspension comprising particulate 4,4?-dichlorodiphenyl sulfone in carboxylic acid, (b) carrying out a solid-liquid separation of the suspension to obtain residual moisture containing 4,4?-dichlorodiphenyl sulfone and a carboxylic acid comprising filtrate, (c) washing the residual moisture containing 4,4?-dichlorodiphenyl sulfone with an aqueous base and then with water, (d) mixing the aqueous base after being used for washing with a strong acid, or mixing the aqueous base after being used for washing, the carboxylic acid comprising filtrate and a strong acid, (e) carrying out a phase separation in which an aqueous phase and an organic phase comprising the carboxylic acid are obtained.

Abstract: The invention relates to a process for purifying 4,4?-dichlorodiphenyl sulfoxide comprising: (a) providing a suspension comprising particulate 4,4?-dichlorodiphenyl sulfoxide in monochlorobenzene, (b) solid-liquid separation of the suspension to obtain residual moisture containing 4,4?-dichlorodiphenyl sulfoxide, (c) washing residual moisture containing 4,4?-dichlorodiphenyl sulfoxide with monochlorobenzene, (d) optionally repeating steps (a) to (c).

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).

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).

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).

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).

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).

Abstract: An occluder (7) for sealing body orifices (6, 6a) of the human or animal body is illustrated and described, in particular an occluder (7) for percutaneous transcatheter sealing of atrium septum defects of the human or animal heart (1). According to the invention it is provided that the occluder (7) or parts of the occluder (7) form an electric oscillating resonance circuit, whereby at least one conductive loop forming the inductivity of the oscillating resonance circuit is provided and the occluder (7) or parts of the occluder (7) are formed by the conductive loop.

Abstract: An occluder (7) for sealing body orifices (6, 6a) of the human or animal body is illustrated and described, in particular an occluder (7) for percutaneous transcatheter sealing of atrium septum defects of the human or animal heart (1). According to the invention it is provided that the occluder (7) or parts of the occluder (7) form an electric oscillating resonance circuit, whereby at least one conductive loop forming the inductivity of the oscillating resonance circuit is provided and the occluder (7) or parts of the occluder (7) are formed by the conductive loop.

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).

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).

Abstract: The invention relates to a vessel filter comprising at least one conductor loop (21) which forms the inductance of an electric resonance circuit. According to the invention, the conductor loop (21) forms the vessel filter or parts of a vessel filter. The invention provides a vessel filter which is characterized by good mechanical properties, especially a high degree of flexibility and stability, offering good representability in MR imaging systems.

Abstract: An occluder (7) for sealing body orifices (6, 6a) of the human or animal body is illustrated and described, in particular an occluder (7) for percutaneous transcatheter sealing of atrium septum defects of the human or animal heart (1). According to the invention it is provided that the occluder (7) or parts of the occluder (7) form an electric oscillating resonance circuit, whereby at least one conductive loop forming the inductivity of the oscillating resonance circuit is provided and the occluder (7) or parts of the occluder (7) are formed by the conductive loop.

Abstract: In a device for the injection of medical preparations, into a patients body during an examination in a Computer Tomograph (CT) or in a Magnetic Resonance Tomograph (MRT) or endoscopically, including an injection needle supported by an injection-needle advancing arrangement for insertion of the injection needle into the patients body and the concurrent injection of medications with a separate dosing apparatus, a hose with a check valve for the one-way transport of the medical preparations from the dosing apparatus into the injection needle, as well as a pressure sensor for monitoring the infusion, the injection needle advancing arrangement comprises a needle holder and a linear drive for the movement of the needle holder in parallel with the injection needle and the dosing apparatus has geometric dimensions and consists of materials permitting its insertion into the CT or MRT together with the patient.

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).

Abstract: A medical device enables effective magnetic resonance imaging inside a lumen of a medical device. The medical device includes a plurality of conductive traces formed on a substrate. The conductive traces form an inductive-capacitance circuit or a resistive-inductive-capacitance circuit. The inductive-capacitance circuit or resistive-inductive-capacitance circuit is tuned to a frequency associated with magnetic resonance imaging, an operating frequency associated with a magnetic resonance imaging scanner, a harmonic of an operating frequency associated with a magnetic resonance imaging scanner, or a sub-harmonic of an operating frequency associated with a magnetic resonance imaging scanner.

Abstract: A medical device enables effective magnetic resonance imaging inside a lumen of a medical device. The medical device includes a plurality of conductive traces formed on a substrate. The conductive traces form an inductive-capacitance circuit or a resistive-inductive-capacitance circuit. The inductive-capacitance circuit or resistive-inductive-capacitance circuit is tuned to a frequency associated with magnetic resonance imaging, an operating frequency associated with a magnetic resonance imaging scanner, a harmonic of an operating frequency associated with a magnetic resonance imaging scanner, or a sub-harmonic of an operating frequency associated with a magnetic resonance imaging scanner.