Surgeon's electrical heating device for flowing fluids

Dec. 15, 1936. b. t. beasley 2,063,902

SURGEONS’ ELECTRICAL HEATING DEVICE FOR FLOWING FLUIDS

Filed March 7, 1934 2 Sheets-Sheet 1

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Dec. 15, 1936.

B. T. BEASLEY

2,063,902

SURGEONS’ ELECTRICAL HEATING DEVICE FOR FLOWING FLUIDS

Filed March 7, 1934 2 Sheets-Sheet 2

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Patented Dec. 15, 1936

2,063,902

UNITED STATES PATENT OFFICE

2,063,902

SURGEON’S ELECTRICAL HEATING DEVICE FOR FLOWING FLUIDS

Benjamin T. Beasley, Atlanta, Ga.

Application March 7, 1934, Serial No. 714,504

Claims. (Cl. 219—39)

The object of my invention is to provide a new method for heating and/or maintaining proper temperature levels of solutions or fluids used as therapeutic agents, stimulants, foods or tonics 5 administered subcutaneously, intravenously through a needle or other device attached to the end of a tube, or intrarectally or other organs of the body through a rubber tube or any other kind of tube usually employed in the adminis’ 0 tration of such fluids, solutions or drugs.

I attain these and other objects of my invention by the means illustrated in the accompanying drawings, in which—

Figure 1 is a view partly in side elevation and partly in longitudinal section of a part of my invention ;

Fig. 2 is an end elevation at the outlet end of the device;

Fig. 3 is an end elevation at the inlet end of the device;

Fig. 4 is a vertical section on line 4—4 of Fig. 1 ;

Fig. 5 is a diagrammatic view of the electric circuit used;

Fig. 6 is a view, partly in elevation, partly in longitudinal and partly with only a portion of the shell broken away to show the interior contraction of one form of my invention;

Fig. 7 is a transverse section on approximately line 7—7 of Fig. 6; and

Fig. 8 is a diagrammatic view of the electric wiring for this form of the invention.

Like numerals designate like parts in each of the several views.

Referring to the drawings, I indicates any conliB™ । i h 1,1 provide plates 2 of insulation WfllClHUllC· tion as supports for heater coils 3. Mounted on plates 2 is a semi-cylindrical plate or shelf 4 on which I mount a tube or other suitable container 5 Container 5 has a suitable end plate 6 (which _may be removable if desired) and the inlet tube 14 I provide a suitable thermostat and thermostatic casing for same designated 7 and mounted in an end plate 6 as shown in Fig. 1. I also pro

-, vide a suitable removable end closure plate 8 at the outlet end of the container. I provide suitable encircling reinforcing plates 9 to reinforce the container 5 at the end portions thereof, as ^Shl'proridTln¹outlet tube 10 mounted in closure plate 8 and an inlet tube 14 mounted in closure plate 6 Inlet tube t4 may be connected with a faucet or provided with a conventional valve not claimed as a part of this invention. On out55 let tube 10 I provide a valve casing 11 m which a valve 12 is mounted, having a threaded portion mounted in the threaded seat at 13. This plate is held in place by the thumb screws 24 of closure member 8, as shown in Fig. 2. Plate 8 is preferably slightly bevelled at 26 to a seat tightly in the end of tube 5. Referring to Fig. 5 illustrating the electric circuit, the numeral 15 designates a current wire from which the wire 16 leads to the heater coils 3 which in turn are electrically connected with the armature switch 17 of the relay i8. I provide a wire 19 leading from member 17 to the second current wire 20. I provide a wire 21 from current wire 20 to the relay 18 and a wire 22 from the relay 18 to the thermostat 7 and a wire 23 from the thermostat 7 to the current wire 18.

As will be understood by referring to Fig. 5 the thermostat may be adjusted to make and break the electric current at the particular temperature desired and thereby control the operation of the relay 18 to operate the armature or switch 17 and thus connect or dis-connect the electric coils from the electric switch and thereby control their operation and thereby automatically regulate the operation of the heater coils and thus the temperature of the liquid within the container 5. The heatei- coils may be of any desired length and position to secure a uniform temperature of the fluid throughout the tube; or at the inlet end; or at the outlet end as desired.

For successful use of an instrument of this character it is necessary (a) that solutions must be sterile and kept sterile; (b) that the solutions should be heated to the proper temperature (ap* ΛΛ .......

JiVV the blood stream or under the skin at that temperature; and (c) that the apparatus for heating solutions, i. e., the containers, should be detachable for sterilizing.

By actual tests solutions flowing through tubes in small quantities and. at a slow rate lose approximately 2 degrees for each inch of tube through which the solution flows. My apparatus not only heats the solution to a predetermined temperature but delivers it at this temperature into the vein by means of the attachment represented in Fig. 6. This has been proven by placing a thermometer in the flow pipe near the needle where it can be observed.

As will be understood by referring to Fig. 2 of the drawings, the enclosure plate 8 may readily be removed by removing the thumb screws 24 or disengaging the slotted ears 25 from said thumb screws 24.

2,063,053 using ordinary salt, sodium chloride, It is preferred to use the phosphorus pentoxide in the glazing of those wares which are difficult, or practically impossible to glaze, by the use of ordi5 nary salt, such as wares which have a high lime or high alumina content. Such wares may be glazed by the use of phosphorus pentoxide alone or after a preliminary salt glaze produced in the usual manner. In some instances the phos10 phorus pentoxide glazing may be followed by a final salt glazing.

The gaseous mixture containing phosphorus pentoxide and suitable for glazing with the material may be obtained by any convenient means, 15 such as, by the partial or total oxidation of phosphate reduction furnace gas, by the oxidation of elemental phosphorus or by the volatilization of phosphorus pentoxide. The amount of the phosphorus pentoxide required will depend upon the 20 composition and the surface of the ware to be glazed. The operation of a 30 foot down-draft sewer pipe kiln given below will serve to further indicate the method of operation and the amounts of glazing materials required. One 25 round of salt means 60 to 100 lbs. of sodium chloride, distributed equally to each fire box and one round of phosphorus pentoxide means 25 to 100 lbs. of phosphorus pentoxide, or its equivalent, distributed equally to each fire box. The 30 ware to be glazed is placed in the kiln, brought to the proper temperature for salt glazing and contacted with a gaseous mixture containing the active glazing agent in any one of the sequences outlined as follows:

i. one or more rounds of phosphorus pentoxide.

2. One or more rounds of phosphorus pentoxide, and one or more rounds of sodium chloride.

3. One or more rounds of sodium chloride, and 40 one or more rounds of phosphorus pentoxide.

4. One or more rounds of sodium chloride, one or more rounds of phosphorus pentoxide and one or more rounds of sodium chloride.

The kiln is operated throughout in substan45 tially the same maimer currently used in the salt glazing operation and after the final glazing operation the kiln is cooled in the usual manner.

It will be seen, therefore, that this invention actually may be carried out by the modification 50 of certain details without departing from its suirit or scope.