Intravenous warming system
First Claim
Patent Images
1. A warming system for intravenous fluids comprising:
- a warming body having a proximal and a distal end, said body defining a bore therethrough to receive and warm an intravenous solution to be introduced into a living body, said bore defining an irregular inner surface to enhance turbulent fluid flow and heat transfer;
heating elements disposed about the exterior of said warming body and electrically coupled to a control means and a power source, where said control means includes circuitry to modify electrical current to said heating elements to maintain temperature in said bore at a desired range;
an insulative housing disposed about said warming body and said heating elements; and
a second housing defining a top and bottom surface, where said bottom surface defines a groove adapted to receive said warming body and said insulated housing.
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Accused Products
Abstract
A system for warming a circulatory fluid is disclosed, which system comprising in a preferred embodiment a warming element consisting of a body defining a bore having irregular fluid flow surfaces and heating elements disposed about said body, a control means electrically coupled to said warming element and a power source.
92 Citations
18 Claims
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1. A warming system for intravenous fluids comprising:
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a warming body having a proximal and a distal end, said body defining a bore therethrough to receive and warm an intravenous solution to be introduced into a living body, said bore defining an irregular inner surface to enhance turbulent fluid flow and heat transfer; heating elements disposed about the exterior of said warming body and electrically coupled to a control means and a power source, where said control means includes circuitry to modify electrical current to said heating elements to maintain temperature in said bore at a desired range; an insulative housing disposed about said warming body and said heating elements; and a second housing defining a top and bottom surface, where said bottom surface defines a groove adapted to receive said warming body and said insulated housing. - View Dependent Claims (2, 3, 4, 5, 6, 16)
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7. A warming system for intravenous fluids comprising:
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a warming body having a proximal and a distal end, said body defining a bore therethrough to receive and warm an intravenous solution to be introduced into a living body, said bore defining a shape adapted to enhance turbulent fluid flow and heat transfer in fluids introduced therethrough; heating elements disposed about the exterior of said warming body and electrically coupled to a control means and a power source, where said control means includes circuitry to modify electrical current to said heating elements to maintain temperature in said bore at a desired range; said warming body and heating elements disposed inside a cylindrical housing and said housing includes at least one insulative layer; and said housing includes at least one annular contact which is coupled to said temperature sensor and said heating elements, and said contact is adapted to electrically contact complimentary contacts disposed on said control means so as to establish electrical contact between said heating elements and said control means. - View Dependent Claims (8, 9, 17)
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10. An electrically powered system for heating an intravenous liquid to a predetermined temperature comprising:
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a body having a proximal end and a distal end and defining an irregular bore therethrough to establish turbulent fluid flow of an intravenous liquid to be introduced into a living body; an electrical resistance heating element disposed about said body such that when electrical current is delivered to said heating element, heat is transferred therefrom to fluid in the bore; an insulative housing disposed about said body and said heating element; a second housing defining a top and bottom surface, where said bottom surface defines a groove adapted to receive said body and said insulative housing; control means electrically coupled to said heating element, said means enabling the maintenance of intravenous liquid flowing through said bore at a predetermined temperature; a power source coupled electrically to said control means; and sensor means to monitor the temperature of the intravenous liquid flowing through said bore, where said sensor means is coupled to said control means. - View Dependent Claims (11, 12, 13, 14, 15, 18)
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Specification