KR910000026B1 - Process for preparing gel for ultrasonic probe - Google Patents

Abstract

The gel for a ultrasonic probe is prepared by dissolving 6.5-7 wt.% carboxyvinyl copolymer, 1-15 wt.% polypropylene glycol, 1.5-40 wt.% triethanol amine, 0.1 wt.% methyl-para-hydroxy benzeate, 0.1 wt.% butylhydroxy benzoate, 0.8-1 wt.% sodium benzoate, and 0.2-0.3 wt.% methyl cellulose in water, and completely agitating the solution at 15-20 deg.C. The product is useful for ultrasonograph in bringing a good contact between the probe and the body part under inspection.

Description

Manufacturing method of the GEL for ultrasonic probes

The present invention relates to a method of manufacturing a human body to closely adhere the transducer of the ultrasonic diagnostic apparatus to the human body, and in particular, in order to closely adhere the transducer (PROBE) of the fetal sounder or ultrasonic diagnostic apparatus to the human body, viscosity and adhesion By using an excellent gel as an intermediate medium, the present invention relates to a method for producing an ultrasonic probe for correcting a body of ultrasonic waves to accurately transmit a flow of ultrasonic waves to a monitor to obtain an excellent image.

In general, in order to closely adhere the transducer to the human body during ultrasound diagnosis, a means of applying the adhesion effect by applying water on the human body or applying glycerin or a general emulsion is used, but since water is inflexible, easily dried and bubbles are generated. Due to poor contact between the human body and the probe, it is impossible to completely remove obstacles or factors in the flow of ultrasonic waves, and it is impossible to deliver accurate images to the monitor.In the case of glycerin or general emulsions, bubbles are generated and applied. Due to the drying phenomenon and viscosity of the emulsion, it is not possible to expect a continuous contact effect, and it is not only able to deliver accurate images to the monitor, but also it is difficult to remove the glycerin or emulsion on the most important and expensive transducers of the diagnostic equipment, and damage the transducer. There was a high risk of flaws.

The present invention is not easy to dry for the purpose of improving the adhesion between the probe and the inspection portion of the ultrasonic diagnostic device in order to solve the above-mentioned conventional defects, and has a constant point of view (粘 長 渡) excellent adhesion and fluidity, there is no bubble generation As a result of research on the easy-to-use purifying body for excellent ultrasonic transmission efficiency, it is possible to accurately transmit the flow of ultrasonic waves to an image monitor to obtain an image with excellent clarity and to extend the life of the transducer.

Specifically, the carboxy vinyl copolymer is used as a crosslinking agent, polypropylene glycol as an emulsifier, triethanol amine as a forming agent, and methyl cellulose as a softening agent, followed by addition of a slight preservative and a small amount of a coloring agent as necessary. It is dissolved in a certain amount of water and mixed with sufficient stirring while maintaining a temperature of 10 ° C to 20 ° C. It has excellent fluidity and adhesion, almost no bubbles, does not dry easily, does not irritate the skin, and is easily used as a toilet paper or towel after use. The crosslinkable body which can be wiped off can be manufactured and this invention was reached.

In the present invention, the carboxy vinyl copolymer to be used as a compatibilizer uses Carpopol (Carbopol No. 940, manufactured by Goodrich Co., USA), and as a preservative, Danisol-M (monochemical Danisol) as methyl para hydroxy benzoate. -M) and butyl para hydroxy benzoate using Danisol-B (monochemical Danisol-B) and sodium benzoate as edible preservatives, respectively, and colorants using common food coloring.

Further, according to the present invention, 6-7% by weight of capopol, preferably 6.5-7% by weight, PPG (poly propylene Gycol: for medical use) 1-15% by weight, and TEA (Tri Ethanol Amin) 1.5- 40% by weight, and 0.2-0.3% by weight of methyl cellulose (D-MC), 0.1% by weight of DM (Danisol-M) and DB (Danisol-B) as preservatives, sodium benzoate (SB) 0.8 After the addition of -1% by weight, the temperature of 10-20 ° C, particularly preferably 15-20 ° C, is maintained for 10-15 days, thereby producing a high-quality crosslinked product. .

At this time, if the temperature condition suitable for stirring is 10-15 ℃ about 15 days of stirrer is required, but it takes 10 days at 16-20 ℃ it can be seen that 5 days shortened how much more suitable mixing above 20 ℃ Along with the problem was not made, the shortening of the stirring time could not be expected.

Hereinafter, the present invention will be described in detail by way of examples.

Example 1

The mixture having the following composition was kept at a temperature of 15 ° C. and slowly stirred for 10 days using a conventional stirrer to confirm physical properties as shown in Table 1.

Example 2

The mixture of the following composition was stirred at 10 ° C. for 15 days, but the time required for stirring was slightly extended compared to Example 1, but physical properties as shown in Table 1 were confirmed.

That is, compared with Comparative Example 1, there was no specific difference in physical properties and good in flexibility.

Comparative Example 1

The mixture of the following composition was stirred for 10 days at the temperature of 20 degreeC, and the result of Table 1 was obtained. This was not dried for a certain period of time compared to the conventional mater, but was not sufficient for the diagnostic time.

Comparative Example 2

The mixture of the following composition was stirred for 10 days at the temperature of 10 degreeC, and the result of Table 1 was obtained.

Comparative Example 3

The water according to the conventional method was used as an adhesive and the results are shown in Table 1.

TABLE 1

Claims (1)

6.5-7% by weight of carboxy vinyl copolymer, 1-15% by weight of polypropylene glycol, 1.5-40% by weight of triethanolamine, 0.1% by weight of methyl para hydroxy benzoate and butylhydroxy benzoate each, sodium benzoate 0.8- 1% by weight and 0.2-0.3% by weight of methyl cellulose are dissolved in water, followed by stirring at 15-20 ° C. using a conventional stirrer.