JP2000000259A - Vein heating band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to prevent heat radiation by thermal insulation material and to easily and efficiently heat a living body when a belt body is mounted at the required heating point of the living body and is made to generate heat by the energization of a surface heating element by disposing the surface heating element at the belt body and mounting the thermal insulating material on the rear surface of the surface heating element. SOLUTION: The belt body 1 is so formed as to have an elongated rectangular shape when developed on a plane. The outer side and inner side thereof are both formed of fabrics 2, 3. At this time, a fabric subjected to water repelling finishing is used as the fabric 3 on the inner side by taking the intervention of a wet towel, or the like, into consideration. A bag part 5 having an opening 4 is formed at the fabric 3 on the inner side and the surface heating element or the like which is made to generate heat by energization and is put into a curler of a C shape in side view disposed with the thermal insulating material in the inner side part is inserted into the bag part 5. The one end on the inner side of the belt body 1 and the other end on the outer side thereof are provided with hook-and-loop fasteners 6, 7 which may be coupled to each other, by which the freely attachable and detachable mounting of the belt body 1 to and from the heating point of the living body is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a vein heating zone for heating a vein of a living body.

[0002]

2. Description of the Related Art Intravenous injections are often used to administer treatment to patients. However, repeated intravenous injections produce antibodies in the blood vessels and diseased areas, harden, and even slide down to sharp needle tips, making it impossible to pass through the blood vessels without repeated punctures. Therefore, in order to alleviate the pain of the patient and the difficulty of the nurse (operator), some hospitals have conventionally used a steamed towel or the like to heat the punctured part to make it soft.

[0003]

In the above-mentioned heating using a steamed towel, the steamed towel must be kept warm at all times, and if the number of patients is large, the steamed towel must be prepared so much. In addition, since steamed towels cool down over time, they need to be replaced in a complicated manner, and there is a problem that a long heating time cannot be obtained.

The present invention has been made in view of the above problems, and has as its object to provide a venous heating zone which can be heated many times and can be heated continuously for a desired time. And

[0005]

In a vein heating zone according to the present invention, a strip-shaped heating element for heating and a heat insulating material disposed on the back of the sheet heating element are attached to the strip. . When this heating zone is attached to the puncture part of the living body and the heater of the sheet heating element is energized, the heat of the sheet heating element suppresses heat release on the back surface with a heat insulating material, and the puncturing part and its vicinity are heated. The warming also softens the veins.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments. FIG. 1 is a perspective view showing an external appearance of a band of a vein warming zone according to an embodiment of the present invention. When the band 1 is unfolded on a plane, the band 1 has a rectangular strip shape, and the outer and inner cloths 2 and 3 are used. The outer cloth 2 has a soft feeling and the inner cloth 3 is wet. Water repellent treatment is applied in consideration of intervening towels.
Further, a bag portion 5 having an opening 4 is formed on the inner side, and a planar heating element for heating, which will be described later, is placed in the bag portion 5. The hook-and-loop fasteners 6 and 7 for mounting are provided on one end on the inner side and the other end on the outer side of the band 1.

FIG. 2 is a plan view of the planar heating element 8 in the vein warming zone according to this embodiment. The sheet heating element 8 includes a resistor 9
a, 9b and electrodes 10a, 10b, 10c, and the resistance portions 9a, 9b are made of carbon fiber in a sheet shape and vacuum-packed with the insulating film 11. The thickness of the sheet heating element 8 is as thin as 0.4 mm and can be appropriately rounded. A temperature sensor 12 that performs a thermostat operation is provided on the resistor 9a. The electrodes 10a and 10c are connected in common and connected to the power switch 13 via the temperature fuse 17, and the electrode 10b is connected to the power switch 13 via the temperature sensor 12. As shown in the circuit diagram of FIG. It becomes a circuit.

FIG. 4 is a perspective view of a curler 14 for supporting the sheet heating element 8. The curler 14 is integrally formed of two layers of a hard plate 15 made of PVC or the like on the outside and a heat insulating material 16 made of polystyrene or the like on the inside. It has a shape. The sheet heating element 8 shown in FIG. 2 is superimposed on the inside of the curler 14, and is inserted into the bag portion 5 through the opening 4 of the band 1 shown in FIG. Thereby, the embodiment vein heating zone is completed. A cross-sectional view of the state where the curler 14 and the sheet heating element 8 are put in the bag portion 5 is shown in FIG. 5, in which the right side is inside, and the cloth 3, the sheet heating element 8 and the curler 14 are inside toward the outside. The heat insulating material 16, the hard plate 15 of the curler 14, and the outer cloth 2 are arranged in this order.

[0009] In this embodiment, the vein warming zone has a temperature of 45 to 45 ° C.
The temperature can be adjusted at 48 ° C., and the use time can be selected in the range of 5 to 20 minutes. However, the present invention is not limited to this value, and the control temperature and the use time are appropriately set according to the application. do it. When using the vein warming zone of this embodiment to warm the puncture site of the patient's arm for injection, the vein warming band is put over the arm and the fasteners 6 and 7 are stopped. And
When the power switch 13 is turned on and the energization is started,
As shown in FIG. 5, the temperature of the sheet heating element 8 is increased by heating, as shown in FIG.
It rises over time. At the beginning of the operation, the temperature rises with the passage of time, but it rises in about 2 minutes and becomes stable after about 5 minutes. The temperature sensor 12 is 45
° C, the temperature sensor 12
Is turned on, the sheet heating element 8 is energized, and the temperature rises. Temperature sensor 12 turns off when temperature exceeds 45 ° C
And the temperature drops slightly. When it becomes lower than 45 ° C,
It is turned on again, and the constant temperature control is performed.

FIG. 8 is a plan view showing a planar heating element in a vein heating zone according to another embodiment. The sheet heating element 8 includes a resistor 9
a, 9b and electrodes 10a, 10b, 10c, and the resistance portions 9a, 9b are made of carbon fiber in a sheet shape and vacuum-packed with the insulating film 11. The thickness of the sheet heating element 8 is as thin as 0.4 mm and can be appropriately rounded. In this respect, there is no difference from FIG. Electrode 10
a, 10b, and 10c are connected to the control circuit 18.
The control circuit 18 switches the connection of the electrodes 10a, 10b, and 10c to connect the resistance units 9a and 9b in parallel.
A series connection, a single connection, and the like can be selected, and a heating state can be selected. Further, a temperature sensor 19 is mounted on the upper surface of the resistor 9a.

The operating temperature is set to one of several set temperatures.
When one of them is selected and set, the ON / OFF time of the sheet heating element 8 may be controlled by the control circuit 18 so that the temperature measured by the temperature sensor 19 becomes equal to the set temperature. FIG. 9 shows the resistance portions 9a, 9a of the sheet heating element 8 shown in FIG.
FIG. 4 is a circuit diagram for performing connection switching of FIG.
Only the switching function circuit of FIG. here,
The three stages of i, b, and c are divided into three switches 21, 22, 23.
Is switched. Of the three electrodes, the electrode 10a is connected to the terminals B and C of the switch 21, the terminal A of the switch 22, and the terminal A of the switch 23. The electrode 10b is connected to the terminal A of the switch 21 and the terminal C of the switch 22. The electrode 10c is connected to a terminal b of the switch 22 and a common terminal of the switch 23. Further, a commercial AC power supply 24 is connected between the common terminals of the switch 21 and the switch 22. The terminals B and C of the switch 23 are open.

The switches 21, 22, and 23 are interlocked with each other.
You can switch between b and c. Now, when each switch is turned on to the terminal A, the electrode 10a and the electrode 10c are commonly connected through the common terminal and the terminal A of the switch 23, and this common connection point is connected to the commercial AC power supply through the terminal A and the common terminal of the switch 22. 24, and the electrode 10b is connected to the switch 21.
, And connected to the other end of the AC power supply 24 via the common terminal. Therefore, when the terminal A is turned on, the circuit in which the resistance parts 9a and 9b are connected in parallel is energized from the AC power supply 24.

Next, when the switches 21, 22, and 23 are turned on, the electrode 10a is connected to the terminal B of the switch 21,
Via a common terminal, connected to the other end of the AC power supply 24,
The electrode 10c passes through the terminal b of the switch 22 and the common terminal,
Connected to one end of AC power supply 24. The electrode 10b is open. For this reason, the input to the terminal b causes the resistance 9
Power is supplied from an AC power supply 24 to a circuit in which a and 9b are connected in series.

Subsequently, the switches 21, 22, and 23 are
When applied to the terminal C, the electrode 10a is connected to the other end of the AC power supply 24 through the terminal C of the switch 21 and the common terminal, and the electrode 10b is connected to the AC power supply 24 through the terminal C of the switch 22 and the common terminal. . The electrode 10c is open. Therefore, when the terminal C is turned on, only the resistor 9a is energized from the AC power supply 24.

[0015]

According to the present invention, since the sheet heating element and the heat insulating material provided on the back of the sheet heating element are attached to the strip, the strip is attached to the heating portion. Then, electricity is supplied to the sheet heating element, heat does not escape from the heat insulating material side, the living body is heated from the sheet heating element side, and the living body can be easily and efficiently heated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external appearance of a band of a vein warming zone according to an embodiment of the present invention.

FIG. 2 is a plan view showing a planar heating element of the vein warming zone of the embodiment.

FIG. 3 is a diagram showing a connection circuit of the planar heating element.

FIG. 4 is a perspective view showing curlers in the vein warming zone of the embodiment.

FIG. 5 is a sectional view of a main part showing an internal structure of the vein warming zone of the embodiment.

FIG. 6 is a diagram showing a relationship between a lapse of time and a temperature change in the vein warming zone of the embodiment.

FIG. 7 is a diagram showing a relationship between time and temperature when a temperature sensor is provided on the sheet heating element and the temperature by heating is controlled to a target temperature value in the vein heating zone of the embodiment.

FIG. 8 is a diagram showing a planar heating element of a vein warming zone according to another embodiment of the present invention.

FIG. 9 is a circuit connection diagram showing a circuit for switching connection of a resistance unit in the vein warming zone of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Strip 2 Outer cloth 3 Inner cloth 5 Bag part 8 Planar heating element 14 Curler 15 Hard plate 16 Insulation material

Claims (5)

[Claims] 1. A vein heating zone wherein a sheet heating element for heating and a heat insulating material disposed on the back of the sheet heating element are attached to a strip. 2. The vein warming zone according to claim 1, wherein the band has a bag portion, and the planar heating element is housed in the bag portion. 3. The vein warming zone according to claim 1, further comprising a curler having a C-shape in a side view, wherein the planar heating element is arranged inside the curler. 4. The vein warming zone according to claim 3, wherein the heat insulating material is formed integrally with the curler inside the curler. 5. The vein warming zone according to claim 1, wherein said planar heating element is provided with a temperature sensor.