Warming apparatus with heater produced by pcb

H - Electricity – 05 – B

Patent

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Details

H05B 3/20 (2006.01)

Patent

CA 2538338

The disclosed invention relates to a heating apparatus having a PCB-type heater capable of allowing the temperature of Ringer's solution or blood which is introduced into a blood vessel, when transfusing a blood thereto, to be equal to that of the human body to thereby provide an accurate resistance value. The present invention comprises 1. A heating apparatus according to an embodiment of the invention comprises a body including a first connecting portion having a tube which is connected to the first connection portion and receives a fluid supplied from an instillation room, a path having the shape of a spiral screw thread to enable the fluid to flow and a second connecting portion for supplying the fluid flowing through the path to an injection syringe; an inner cover inserted into the body and fixedly attached thereto in a prescribed adhesive manner for preventing the fluid from flowing out; a middle cover for closely fixing the body and the inner cover against each other; a PCB-type heater inserted into the inside of the top and bottom surfaces of the middle cover for heating the fluid flowing through the path so that the fluid is maintained at a prescribed temperature; a bottom case having a box portion to receive the body having the heater and the middle cover coupled thereto; and a upper case coupled to the bottom case.

La présente invention concerne un réchauffeur à résistance en carte à circuit imprimé, capable de donner à la solution de Ringer ou au sang en perfusion une température égale à celle du corps humain, de façon à obtenir une valeur de résistance exacte. Le réchauffeur de la présente invention comporte, pour l'un de ses modes de réalisation, plusieurs éléments constitutifs. Le corps comprend un premier raccord donnant sur un tube et alimenté en fluide depuis une chambre d'instillation, un passage en serpentin en spirale permettant la circulation du fluide, et un second raccord alimentant en fluide du serpentin une seringue d'injection. Une enveloppe intérieure, insérée dans le corps dont elle est solidaire par collage, empêche le fluide de s'écouler. Une enveloppe intermédiaire fixe étroitement l'enveloppe intérieure et le corps l'un à l'autre. Une résistance en carte à circuit imprimée, insérée dans l'intérieure des faces supérieures et inférieures de l'enveloppe intermédiaire, permet de chauffer le fluide passant dans le serpentin pour le conserver à une température de consigne. Un fond de carter définissant un logement, reçoit le corps auquel sont solidarisées la résistance et l'enveloppe intermédiaire. Un dessus de carter vient se fixer au fond de carter.

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