摘要:
A method for producing a biocompatible material of the formula NaxKyNbO3, 0≦x≦0.8, 0.2≦y≦1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0≦x≦0.8, 0.2≦y≦1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
摘要翻译:一种制备式NaxKyNbO3,0和nlE; x和nlE; 0.8,0.2≦̸ y≦̸ 1,x + y = 1的生物相容性材料的方法包括以下步骤:a)提供NaxKyNbO3的Na前体和K-前体,b 将前体混合在溶液中,其中所述前体首先反应形成溶胶,然后进行凝胶,c)热处理该凝胶以获得材料NaxKyNbO3,0和nlE; x和nlE; 0.8,0.2和nlE; y和nlE; 1,x + y = 1。 该材料可以作为膜制造,并且材料或膜可以设置在将在其植入时将与身体组织和/或体液接触的医用植入物的外表面上。
摘要:
A method for producing a biocompatible material of the formula NaxKyNbO3, 0≦x≦0.8, 0.2≦y≦1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0≦x≦0.8, 0.2≦y≦1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
摘要翻译:一种制备式NaxKyNbO3,0和nlE; x和nlE; 0.8,0.2≦̸ y≦̸ 1,x + y = 1的生物相容性材料的方法包括以下步骤:a)提供NaxKyNbO3的Na前体和K-前体,b 将前体混合在溶液中,其中所述前体首先反应形成溶胶,然后进行凝胶,c)热处理该凝胶以获得材料NaxKyNbO3,0和nlE; x和nlE; 0.8,0.2和nlE; y和nlE; 1,x + y = 1。 该材料可以作为膜制造,并且材料或膜可以设置在将在其植入时将与身体组织和/或体液接触的医用植入物的外表面上。
摘要:
A method for producing a biocompatible material of the formula NaxKyNbO3, 0≦x≦0.8, 0.2≦y≦1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0≦x≦0.8, 0.2≦y≦1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
摘要翻译:一种制备式NaxKyNbO3,0和nlE; x和nlE; 0.8,0.2≦̸ y≦̸ 1,x + y = 1的生物相容性材料的方法包括以下步骤:a)提供NaxKyNbO3的Na前体和K-前体,b 将前体混合在溶液中,其中所述前体首先反应形成溶胶,然后进行凝胶,c)热处理该凝胶以获得材料NaxKyNbO3,0和nlE; x和nlE; 0.8,0.2和nlE; y和nlE; 1,x + y = 1。 该材料可以作为膜制造,并且材料或膜可以设置在将在其植入时将与身体组织和/或体液接触的医用植入物的外表面上。
摘要:
A method for producing a biocompatible material of the formula NaxKyNbO3, 0≦x≦0.8, 0.2≦y≦1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0≦x≦0.8, 0.2≦y≦1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
摘要翻译:一种制备式NaxKyNbO3,0 <= x <= 0.8,0.2 <= y <= 1,x + y = 1的生物相容性材料的方法包括以下步骤:a)提供Na-前体和K-前体, NaxKyNbO3,b)在溶液中混合前体,其中所述前体首先反应形成溶胶,然后凝胶,c)热处理该凝胶以获得材料NaxKyNbO3的氧化物,0≤x≤0.8,0.2≤y <= 1,x + y = 1。 该材料可以作为膜制造,并且材料或膜可以设置在将在其植入时将与身体组织和/或体液接触的医用植入物的外表面上。
摘要:
An implantable lead for sensing mechanical activity of a human heart has an insulating polymeric tube extending from a proximal end to a distal end of the lead, an electrical conductor provided in the lumen of the polymeric tube, and a sensor connected to the conductor at the distal end thereof. The polymeric tube is provided with a conductive surface layer along the inner face between the polymeric tube and the electrical conductor, the conductive surface layer being in electrical contact with this conductor. Accumulation of electrical charges between the electric conductor and the polymeric tube is thereby prevented.
摘要:
An implantable lead for sensing mechanical activity of a human heart has an insulating polymeric tube extending from a proximal end to a distal end of the lead, an electrical conductor provided in the lumen of the polymeric tube, and a sensor connected to the conductor at the distal end thereof. The polymeric tube is provided with a conductive surface layer along the inner face between the polymeric tube and the electrical conductor, the conductive surface layer being in electrical contact with this conductor. Accumulation of electrical charges between the electric conductor and the polymeric tube is thereby prevented.
摘要:
In a device and method for a medical implant for monitoring progression of heart failure in a human heart, an activity sensor provides information related to the activity level of a patient and an oxygen sensor provides information related to the level of oxygen content in venous blood. A determined level of venous oxygen content at a determined activity level is obtained, and that level of venous oxygen content is compared to stored values at a corresponding activity level. The result of the comparison is used as a basis for determining a degree of heart failure.
摘要:
In a cardiac assist device and method, a microphone is placed in contact with the epicardium of the heart of a patient, and heart and lung sounds are simultaneously detected at the placement location of the microphone. The heart and lung sounds are automatically analyzed to set an appropriate cardiac therapy for the patient.
摘要:
A fluid pressure sensor for a lead or catheter intended for placement in a living organism, such as a human heart, includes a rigid annular or tubular supporting structure and a piezoelectric element disposed on at least a portion of the outer surface thereof. The piezoelectric element delivers an electrical signal when subjected to a pressure variation, and exhibits circumferential sensitivity. The rigidity of the sensor is defined to satisfy predetermined criteria to ensure that the sensor, when sensing pressure transferred to the sensor through an on-growth of tissue on the sensor, which is at least 90% of the signal which the sensor would emit without the on-growth.
摘要:
A medical implant has an element with at least a part thereof which is composed of piezoelectric material. The piezoelectric material is suitable for contact with body tissue and/or body fluids, and has the formula NaxKyNbO3, with 0≦x≦0.8, 0.2≦y≦1, and x+y=1.
摘要翻译:医疗植入物具有至少一部分由压电材料构成的元件。 压电材料适于与身体组织和/或体液接触,并且具有公式NaxKyNbO3,其中0 <= x <= 0.8,0.2 <= y <= 1,x + y = 1。