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Publication numberUS2470481 A
Publication typeGrant
Publication dateMay 17, 1949
Filing dateNov 15, 1946
Priority dateNov 15, 1946
Publication numberUS 2470481 A, US 2470481A, US-A-2470481, US2470481 A, US2470481A
InventorsEthelyn Freeman
Original AssigneeEthelyn Freeman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Fluid heater
US 2470481 A
Abstract  available in
Images(3)
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Claims  available in
Description  (OCR text may contain errors)

May 11, 1949. g FREEMAN. 2,470,481

FLUID HEATER Filed Nov. 15, 1946 3 Sheets-Sheet 1 INVENTOR.

ATTD RN EYE E. FREEMAN FLUID HEATER May 17, 1949.

3 Sheets-Sheet 2 Filed Nov. 15, 1946 INVENTOR. ZZ /12 g? Emma);

AYTDRN EYS y 1949- I E. FREEMAN 2,470,481

FLUID HEATER 3 Shets-Sheet 5 Filed Nov. 15, 1946 t 43 & INVENTOR.

2 ZZ /W4? Eff/776w;

A'ITD RN EYB Patented May 17, 1949 UNITED STATES PATENT OFFICE FLUID HEATER Ethelyn Freeman, Muskogee, Okla.

Application November 15, 1946, Serial No. 709,947

1 Claim. 1

My present invention relates to an improved fluid heater and more particularly to a heater for containers of intravenous injections of glucose or saline solutions, and blood plasma.

It will be appreciated that such injections should be of the same temperature as the body temperature of the patient to avoid reactions from the injections of cool fluid into the blood stream, and for that reason the heater of my invention is so constructed as to automatically maintain the temperature of the fluid to be injected at the desired degree comparable with that determined to be the body temperature of the patient.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention according to the best mode I have thus far devised but it will be understood that various changes and alterations may be made in the exemplified structure within the scope of the appended claim.

In the drawings:

Figure 1 is a plan view of the heater of my invention with the supporting structure and controls.

Figure 2 is an enlarged detail elevational view of the heater.

Figure 3 is a top plan view.

Figure 4 is a vertical sectional view through th heater.

Figure 5 is a view of the heater with a plasma receptacle.

Figure 6 is a horizontal sectional view of the heater and the bottle container for glucose or saline fluids.

Figure 7 is a partial sectional view of the cap for the bottle container.

Referring now to the drawings wherein like characters indicate like parts, I have illustrated the present embodiment of my invention as comprising a base 2 for the tubular post 4 in which is provided a telescoping rod 6 secured by screw 1 and formed with an upper hook 8.

The spring l0 supported from the hook 8 has a ring I2 to which is attached the chain [4 secured to the upper supporting ring I6. A lower ring 18 also carried by the chains 14 has attached thereto the heater 20 comprising the spaced walls 22 and 24 with the heating elements 26 therebetween.

A supporting arm 28 extends laterally of the ring 18 and carries thereon the thermostats 3,8 and a fuse box 32 from which the wires 34 lead to the plug 38 for connection with a source of electricity.

A bottle container 38 containing glucose or saline solution formed with a neck 40 is positioned in inverted relation in the heater 20 and the cap 42 seals the open neck. The thermometer 44 is provided with a tube 46 leading into the neck of the bottle through the cap to indicate the temperature of the contents. A heat transfer element 48 connects with the thermostat and thus the heating elements will be controlled by the thermostat to maintain the temperature at the proper set level.

An air vent 50 comprising a flexible tube is secured in the clamps 5| on the rings l6 and I8, and a fluid passage tube 52 leads from the cap 42, the glass insert 54 permitting the examination of the contents of the tube in its passage to the conventional needle 56. A clamp cutoff 58 is secured by chain 59 to the post 4 to provide a quick means of stopping the flow of fluid is necessary.

In Figure 5 I have illustrated the heater in use with a blood plasma container 68 having an outlet 62 and a valve 64.

In the various uses of the heater of my invention, the container is of heat proof glass or other suitable material, and by the use thereof an improved and more accurate technique may be employed resulting in intravenous injections with reduced possibility of reaction to the patient.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

A heater for a container for intravenous fluid injections comprising a stand, spaced supporting rings for suspending the container in an inverted position from the stand, a pair of spaced heating walls having electrical heating elements carried by said supporting rings therebetween, said walls forming a base for the container, temperature controls for the heating elements, a cap for the inverted container, a vent for the container through the cap, and an injection tube extending through the cap.

ETI-IELYN FREEMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,479,451 Buckstein Jan. 1, 1924 1,956,067 Herz Apr. 24, 1934 FOREIGN PATENTS Number Country Date 137,316 Great Britain Mar. 10, 1921

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1479451 *Feb 14, 1923Jan 1, 1924Jacob BucksteinFluid-administering device
US1956067 *Mar 28, 1932Apr 24, 1934Herz AlfredThermostatic device
GB137316A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2771878 *Aug 27, 1952Nov 27, 1956American Optical CorpIntravenous infusion system
US2927522 *Sep 12, 1955Mar 8, 1960Tea Council Of The United StatTea-making apparatus
US3247851 *Mar 13, 1962Apr 26, 1966Seibert Margaretta JeanApparatus for applying liquids to the body
US4293762 *Nov 30, 1978Oct 6, 1981Genshirou OgawaTemperature-controlled electric heating device for heating instillation or transfusion liquids
US4464563 *Aug 28, 1981Aug 7, 1984Jewett Warren RIntravenous fluid warmer
US4532414 *May 4, 1981Jul 30, 1985Data Chem., Inc.Controlled temperature blood warming apparatus
US6467953Mar 30, 2000Oct 22, 2002Medical Solutions, Inc.Method and apparatus for monitoring temperature of intravenously delivered fluids and other medical items
US6566631Oct 23, 2001May 20, 2003Medical Solutions, Inc.Method and apparatus for monitoring temperature of intravenously delivered fluids and other medical items
US6722782Oct 23, 2001Apr 20, 2004Medical Solutions, Inc.Method and apparatus for monitoring temperature of intravenously delivered fluids and other medical items
US6824528Mar 3, 1998Nov 30, 2004Medical Solutions, Inc.Method and apparatus for pressure infusion and temperature control of infused liquids
US7041941Mar 22, 2004May 9, 2006Patented Medical Solutions, LlcMedical item thermal treatment systems and method of monitoring medical items for compliance with prescribed requirements
US7090658Oct 11, 2001Aug 15, 2006Medical Solutions, Inc.Temperature sensing device for selectively measuring temperature at desired locations along an intravenous fluid line
US7276675Aug 8, 2006Oct 2, 2007Patented Medical Solutions, LlcMedical item thermal treatment systems and method of monitoring medical items for compliance with prescribed requirements
US7307245Jul 21, 2006Dec 11, 2007Patented Medical Solutions, LlcMedical item thermal treatment systems and method of monitoring medical items for compliance with prescribed requirements
US7417205Jan 17, 2006Aug 26, 2008Patented Medical Solutions, LlcMedical item thermal treatment systems and method of monitoring medical items for compliance with prescribed requirements
US7540864May 20, 2004Jun 2, 2009Medical Solutions, Inc.Temperature sensing device for selectively measuring temperature at desired locations along an intravenous fluid line
US7549369 *Sep 27, 2004Jun 23, 2009Harry ZimmermanFlavor infusion cooking device and method
US7611504Mar 9, 2004Nov 3, 2009Patented Medical Solutions LlcMethod and apparatus for facilitating injection of medication into an intravenous fluid line while maintaining sterility of infused fluids
US7740611Oct 17, 2006Jun 22, 2010Patented Medical Solutions, LlcMethod and apparatus to indicate prior use of a medical item
US7942851Aug 9, 2004May 17, 2011Medical Solutions, Inc.Method and apparatus for pressure infusion and temperature control of infused liquids
US8226293Feb 22, 2007Jul 24, 2012Medical Solutions, Inc.Method and apparatus for measurement and control of temperature for infused liquids
US8226605Dec 17, 2001Jul 24, 2012Medical Solutions, Inc.Method and apparatus for heating solutions within intravenous lines to desired temperatures during infusion
US8313462Jan 7, 2010Nov 20, 2012Medical Solutions, Inc.Method and apparatus for pressure infusion and temperature control of infused liquids
US8444599May 10, 2010May 21, 2013Patented Medical Solutions, LlcMethod and apparatus to indicate prior use of a medical item
US8636691May 10, 2010Jan 28, 2014Patented Medical Solutions, LlcMethod and apparatus to indicate prior use of a medical item
US8821011Jan 20, 2004Sep 2, 2014Medical Solutions, Inc.Method and apparatus for monitoring temperature of intravenously delivered fluids and other medical items
US8845586Mar 5, 2007Sep 30, 2014Patented Medical Solutions LlcMethod and apparatus for facilitating injection of medication into an intravenous fluid line while maintaining sterility of infused fluids
US8920372Feb 18, 2005Dec 30, 2014Medical Solutions, Inc.Method and apparatus for heating solutions within intravenous lines to desired temperatures during infusion
US8920387Mar 3, 2008Dec 30, 2014Medical Solutions, Inc.Method and apparatus for pressure infusion and temperature control of infused liquids
Classifications
U.S. Classification604/114, 392/479, 392/470, 219/535
International ClassificationA61M5/44
Cooperative ClassificationA61M2205/3653, A61M5/445
European ClassificationA61M5/44B