JPH08206205A - Temperature controller for instillation injection liquid of clip type - Google Patents

Abstract

PURPOSE: To relieve the patient's pain and to lessen the consumption of the physical strength by holding the mid-way of the tube of an instillation syringe with a clip, warming an instillation liquid across the tube, sensing its temp. with a temp. sensor and approximating the temp. to the body temp. CONSTITUTION: The tube 12 of the instillation held by a heating device body and a cap 11 is heated by the heater 16 of a nichrome wire, etc., embedded in an insulator 17 to warm the instillation liquid flowing therein. The warmed instillation liquid is sensed by the temp. sensor 13. Current is automatically cut by a control switch 14 when the temp. of the instillation liquid rises to 40 deg.C approximate to the upper limit of the body temp. or above. Conversely, the current is passed to the heater 16 when the temp. falls down to 35 deg.C near the lower limit of the body temp. or below. As a result, the temp. of the instillation liquid is kept approximately constant at 37 deg.C and further, the temp. controller is easily usable for any instillators using the tube 12 if the controller instillators are made into a clip type. Since the temp. controller does not come into direct contact with the instillation liquid, there is no possibility of staining the instillation liquid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a device which is installed in the middle of a tube of a drip syringe used for medical treatment, detects the temperature of the drip solution with a temperature sensor, and warms it with a heater to bring the temperature of the drip solution close to the body temperature. Is.

[0002]

2. Description of the Related Art A drip syringe is constructed as shown in (1) of FIG.
It is a mechanism in which the drip solution contained in the upper container is introduced into the patient's body from the distal injection needle (5) through the tube (2) by gravity, and the temperature of the drip solution is not a problem.

[0003]

The human body temperature is around 37 ° C. On the other hand, the temperature of the drip solution is close to room temperature or 0 ° C. if it is stored in a refrigerator to prevent deterioration. If this cold drip solution is directly injected into the patient's body, the patient will feel pain. Also, medically, it is desirable that there is no temperature difference between the drip solution and the body temperature.

[0004]

[Means for Solving the Problems] As shown in (3) of FIG.
A device that regulates the temperature of the drip solution by detecting the temperature of the drip solution with a temperature sensor at the end of the heat generator, warming the middle of the drip tube with a clip-type heat generator and its lid.

[0005]

As shown in FIG. 2, the tube (9) through which the drip solution passes is placed in the groove of the heater in the direction of the arrow, and the lid (6) is placed.
Close and warm in the heating section (7). The temperature sensor (8) senses the warmed drip solution and adjusts the temperature to keep the temperature of the drip solution around 37 ° C. of the body temperature.

[0006]

Example 1 An example of the present invention will be described. As shown in FIG. 3, the drip liquid tube (12) sandwiched between the heater body and its lid is heated by a heater (16) such as a nichrome wire embedded in an insulator (17), and the drip liquid flowing through the inside is heated. warm. The warm drip solution is sensed by the temperature sensor (13), and when the temperature of the drip solution becomes 40 ° C. or higher, which is close to the upper limit of the body temperature, the control switch (14) automatically cuts off the current. On the contrary, if the temperature of the drip drops below 35 ° C., which is close to the lower limit of the body temperature, an electric current is passed through the heater. By doing this, the temperature of the drip solution becomes constant at about 37 ° C, and since it is a clip type, you can easily use it with any dropper that uses a tube, and do not directly touch the drip solution. So
Does not contaminate the drip solution. The clip (4) in Fig. 1 is
It is a butterfly-shaped clip that uses a return spring. In FIG. 2, the butterfly clip handle is attached to the spine on the other side of this figure.

[0007]

[Embodiment 2] The control switch of (14) in FIG. 3 may be a mechanism using a transistor to increase or decrease the current.

[0008]

[Third Embodiment] The sensor part is separated from the heater body,
If the temperature of the drip solution is sensed by sandwiching the tube near the injection needle, the temperature can be controlled more accurately.

[0009]

[Embodiment 4] Since the temperature is easier to control in the heat generating portion as the distance between the tubes is longer, the groove may be meandering instead of being straight.

[0010]

[Embodiment 5] FIG. 4 shows a method of winding a tube around a cylindrical heating portion.

[0011]

[Embodiment 6] There is also a method in which the heat generating portion is made into a water tank type and the tube is immersed and warmed.

[0012]

[Embodiment 7] When it is desired to set the temperature of the drip solution to an arbitrary temperature, the upper container of the drip solution is placed in a small refrigerator with a hole for passing a tube, and the temperature sensor of the drip temperature controller is variable. To

[0013]

[Embodiment 8] The heat generator main body is hung on a column or the like.

[0014]

[Embodiment 9] If the surface of the heat generating portion through which the tube passes and the surface of the sensor portion are made of elastic glass fiber or the like, the groove through which the tube is passed becomes unnecessary.

[0015]

According to the present invention, since the temperature of the drip solution approaches the body temperature, the pain of the patient is eased, the physical strength of the patient is reduced, and the effect of the drip solution can be expected to be improved.

[Brief description of drawings]

FIG. 1 is a view in which the present invention is attached in the middle of a drip syringe.

FIG. 2 is a perspective view of the present invention.

FIG. 3 is a sectional structural view of the present invention.

FIG. 4 Example of Example 5

[Explanation of symbols]

(1) Drip solution container (2) Tube through which drip solution passes
(3) Main body of the present invention (4) Clip handle (5) Injection needle (6) Lid
(7) Heat generating part (8) Temperature sensor (9) Tube through which drip solution passes
(10) Power cord (11) Lid (12) Tube for drip solution (1)
3) Temperature sensor (14) Control switch (15) Power cord (16)
Heating element (17) Insulator (18) Tube through which drip solution passes
(19) Temperature sensor (20) Heating part

Claims (1)

[Claims] 1. A drip syringe is attached by sandwiching a tube in the middle with a clip, the drip solution is heated by a heater through the sandwiched tube, the temperature of the drip solution is sensed by a temperature sensor, and the temperature of the drip solution is made body temperature. A device to bring it closer.