Abstract: A blood warmer (10) has a first heating plate (12) and a second heating plate (14) as well as an exchangeable conductor (18, 20, 22, 24) for blood, which is arranged between the first heating plate (12) and the second heating plate (14). The blood warmer (10) has an inlet (66) and an outlet (68) for blood to which the conductor (18, 20, 22, 24) is fluidically connected. Due to the roughness of the surface (46) of the conductor (18, 20, 22, 24), an intermediate space (50) remains between the first heating plate (12) and/or the second heating plate (14) and the conductor (18, 20, 22, 24). A medium (52), which has a higher thermal conductivity than air, is at least partially statically arranged in the intermediate space (50). The blood warmer (10) may also have an electromechanical oscillating circuit and/or a vibration motor.

Abstract: A fluid warmer (10) for temperature control of a medical fluid (14) guided in a fluid tube (12) and a method for operation thereof have a sensor (38), which determines a leakage current (40) via a functional grounding conductor (FE). Two supply connection conductors (22a; 22b) for a resistance heating element (18) as well as the functional grounding conductor (FE) are each equipped with a switch (30a; 30b; 30c) which can be controlled by a control device (32). The switches (30a; 30b; 30c) can be put into their open switching state jointly within a defined time interval by means of a control device (32) on occurrence of a leakage current (40) that is greater than or equal to a defined maximum threshold current magnitude (ITon, IToff).

Abstract: A method for producing a temperature control means (5c, 5c) of an elastic heating profile (1), which heat and/or cool a medical instrument inserted into a cavity (3) of the heating profile (1), are provided in bores (4a, 4b, 4c, . . . ) having a bore diameter (110, 110?) which is smaller than the outer diameter (120, 120?) of the temperature control means (5c, 5e) to be inserted into the bores (4a, 4b, 4c, . . . ). A positive and/or non-positive connection between the heating profile (1) and the received temperature control means ensures good thermal contact. The production costs for an operable heating profile or temperature control means are also reduced.

Abstract: A liquid heating bag 50 is proposed, in particular, a blood heating bag, with a flow volume 1 that is formed from at least two flexible plastic foils connected to each other by welding at four delimiting edges 3,4,5,6, has a flat, substantially trapezoidal basic shape that is limited by the delimiting edges 3,4,5,6, and an inlet line opening 10 and an outlet line opening 11 for a liquid to be heated that are disposed at an upper delimiting edge 3 of the delimiting edges 3,4,5,6 to be disposed at the top during liquid heating, wherein the upper delimiting edge 3 extends sufficiently obliquely with respect to its adjacent delimiting edges 4,6 that a gas reception volume 8 is formed in the region of an acute angle of the flow volume 1 subtended between the upper delimiting edge 3 and a delimiting edge 6 adjacent thereto, and a liquid flow guiding seam 13 that is formed by connecting the plastic foils in the region of the flow volume 1 and divides the upper delimiting edge 3 into a lower inlet line opening region

Abstract: A method for producing a temperature control means (5c, 5c) of an elastic heating profile (1), which heat and/or cool a medical instrument inserted into a cavity (3) of the heating profile (1), are provided in bores (4a, 4b, 4c, . . . ) having a bore diameter (110, 110?) which is smaller than the outer diameter (120, 120?) of the temperature control means (5c, 5e) to be inserted into the bores (4a, 4b, 4c, . . . ). A positive and/or non-positive connection between the heating profile (1) and the received temperature control means ensures good thermal contact. The production costs for an operable heating profile or temperature control means are also reduced.

Abstract: A liquid heating bag 50 is proposed, in particular, a blood heating bag, with a flow volume 1 that is formed from at least two flexible plastic foils connected to each other by welding at four delimiting edges 3,4,5,6, has a flat, substantially trapezoidal basic shape that is limited by the delimiting edges 3,4,5,6, and an inlet line opening 10 and an outlet line opening 11 for a liquid to be heated that are disposed at an upper delimiting edge 3 of the delimiting edges 3,4,5,6 to be disposed at the top during liquid heating, wherein the upper delimiting edge 3 extends sufficiently obliquely with respect to its adjacent delimiting edges 4,6 that a gas reception volume 8 is formed in the region of an acute angle of the flow volume 1 subtended between the upper delimiting edge 3 and a delimiting edge 6 adjacent thereto, and a liquid flow guiding seam 13 that is formed by connecting the plastic foils in the region of the flow volume 1 and divides the upper delimiting edge 3 into a lower inlet line opening region

Abstract: The temperature control means (5c, 5c) of an elastic heating profile (1), which heat and/or cool a medical instrument inserted into a cavity (3) of the heating profile (1), are provided in bores (4a, 4b, 4c, . . . ) having a bore diameter (110, 110?) which is smaller than the outer diameter (120, 120?) of the temperature control means (5c, 5e) to be inserted into the bores (4a, 4b, 4c, . . . ). A positive and/or non-positive connection between the heating profile (1) and the received temperature control means ensures good thermal contact. The production costs for an operable heating profile or temperature control means are also reduced.

Abstract: The invention proposes a liquid heating bag 1, in particular, a blood heating bag and a bag heating means 30 for heating liquids, e.g. cooled blood, which flow through the liquid heating bag 1, to a temperature suitable for transfusion. The liquid heating bag 1 has a flow volume 3 formed by at least two flexible plastic foils which are connected to each other at four delimiting edges 5, 6, 7, 8, wherein the flow volume 3 has a flat, substantially trapezoidal basic shape which is delimited by the delimiting edges 5, 6, 7, 8. An inlet line opening 12 and an outlet line opening 14 are disposed on a first delimiting edge 5, and an insertion tab 15 is disposed on a second delimiting edge 6 opposite to the first delimiting edge 5. The liquid heating bag 1 has a liquid flow guiding seam 20 which is formed by connecting the plastic foils in the region of the flow volume 3. The insertion tab 15 is formed as part of the plastic foils, which projects past the second delimiting edge 6.