JPH04170950A - Condom - Google Patents

Abstract

PURPOSE:To display the sufficient gripping force against the man's genital organs being in an erect state by forming a shape memory resin material whose shape recovery temperature is within a specific range to a condom of a thinner shape than the man's genital organs being in an erect state, and storing its formed shape. CONSTITUTION:A shape memory resin material whose shape recovery temperature is within a range of 30 deg.C to 36 deg.C is used, and formed to a condom of a thinner shape than the man's genital organs being in an erect state, this formed shape is stored, and thereafter, it is saved at a lower temperature than the shape recovery temperature in a state that it is deformed to a thicker shape than the man's genital organs being in an erect state. At the time of use, this condom is won easily to the man's genital organs being in an erect state. The worn condom comes into contact with the man's genital organs, or thereafter, with the women's genital organs and heated to above the shape recovery temperature by its body heat, becomes a rubber-like elastic state for recovering the stored shape being thinner than the man's genital organs being in an erect state, and becomes a state that it adheres closely to the man's genital organs being in an erect state.

Description

[Detailed description of the invention] B. Industrial application fields This invention relates to condom materials.

[Oral, Prior Art] A dome is used by being attached to the male genitals during sexual intercourse, but in order to prevent the infection of sexually transmitted diseases and contraception, the dome does not come off the male genitals during use. This is not the case, and efforts are being made to do so.

The various ideas are related to shape and can be roughly summarized into one.

That is, in an elongated bag-shaped condom, one or several constrictions are partially provided in the middle of the condom, making the condom thinner than the tip of the bag.

With this shape, the constriction part grasps the erect male genitalia, and the constriction part placed after the constriction in front of the large diameter tip of the male genitalia catches the constriction, so that it does not come out. Prevents it from coming off.

C.9 Problems to be Solved by the Invention However, with such a conventional shape, the grip of the male genitalia by the constriction portion is only partial, and the gripping force may be weak and insufficient.

In addition, there are individual differences in the size of male genitalia in an erect state.
If it is thin, the gripping force of the constricted portion and the hooking on the constricted portion will be even more insufficient.

This caused the condom to slip out of the male genitals during use.

The present invention aims to provide a condom that exerts sufficient gripping force on male genitalia in an erect state.

[Means for solving 29 problems] A shape memory resin material whose shape recovery temperature is lower than human body temperature is used as the material for the condom, and it is molded into a condom that is thinner than the male genitalia in an erect state, and the molded shape is memorized. After that, it is deformed into a shape that is thicker than the male genitalia in an erect state and stored at a temperature lower than the shape recovery temperature.

In addition, using a liquid shape memory resin material whose shape recovery temperature is lower than human body temperature, a condom molded with conventional materials and shapes is deformed into a shape thinner than the male genitals in an erect state, and the surface of the deformed condom is A liquid shape memory resin material is applied, the shape of the deformed condom is memorized in the applied shape memory resin material, and then the condom is heated to a temperature lower than the shape recovery temperature while the condom is deformed into a shape that is thicker than the male genitals in an erect state. Save to.

Reference 1: Nikkei New Material November 28, 1988 issue p40-p53 Nikkei BP Reference 2:
Nikkei New Material July 9, 199゜ issue p64
-p68 Nikkei BP Ho0 Effect Condoms that have been memorized in shape in this way maintain a deformed state that is thicker than the erect male genitals below the shape recovery temperature, and become rubbery when heated above the shape recovery temperature. It becomes elastic and returns to its memorized shape, which is thinner than the erect male genitalia.

In other words, a condom stored at a temperature lower than the shape recovery temperature is deformed into a shape that is thicker than the erect male genitals, so it can be easily attached to the erect male genitals, and a condom that is placed on the male genitals will be attached to the male genitals. Or, when a condom comes into contact with the female genitals, it is heated above the human body's body temperature, i.e., the shape recovery temperature, and becomes rubber-like and elastic, and the condom tries to recover its memorized shape, which is thinner than the male genitals in an erect state. It comes into close contact with the genitals.

Examples Example 1: Using a shape memory resin material with a shape recovery temperature in the range of 30°C or higher and 36°C or lower, a condom with a shape narrower than the male genitalia in an erect state is formed, and this molded shape is memorized. , and then stored at a temperature lower than the shape recovery temperature in a deformed state that is thicker than the male genitalia in an erect state.

When used, such a condom has a shape that is thicker than the erect male genitals at a temperature lower than the shape recovery temperature, so it is easily attached to the erect male genitals, and the attached condom is attached to the male genitals or After that, when it comes into contact with the female genitals, its body temperature warms it above the shape recovery temperature, and it becomes a rubber-like elastic state that tries to recover its memorized shape, which is thinner than the erect male genitals, and the erect male genitals become They become in close contact.

Human body temperature ranges from 36°C to 37°C.
Male and female genitalia are also within this temperature range, but fingertips are in the range of approximately 30°C to 31°C.

When putting on a condom, a part of the condom is usually grabbed and handled with the fingertips within a short period of time, but if the shape recovery temperature exceeds the temperature of the fingertips, the condom will not recover its shape while being put on, and the shape will not recover. Even if the recovery temperature is slightly lower than the temperature of the fingertip, the shape will be recovered only in the part that touches the fingertip.
It doesn't make it difficult to install.

In addition, a condom attached to the male genitals is a bag-shaped bag made of decidua that covers the male genitals, and if the shape recovery temperature is lower than body temperature, it will be able to reshape itself due to the body temperature when it comes into contact with the male genitals or later the female genitals. It is easily heated above the recovery temperature, becomes rubber-like, and recovers its shape.

The molded shape of the condom, which is thinner than the male genitalia in an erect state, includes cases where the condom is thin over the entire length of the condom, and cases where it is partially thin if the necessary gripping force can be obtained6.Example 2: Shape recovery temperature is 30 ° C. Using a liquid shape-memory resin material with a temperature below 36°C, a condom molded with conventional materials and shapes is deformed into a shape that is more lateral to the male genitals in an erect state, and liquid is applied to the surface of the deformed condom. A shape memory resin material is applied, the shape of the deformed condom is memorized in the applied shape memory resin material, and then,
It is deformed into a shape that is thicker than the male genitalia in an erect state and is stored at a temperature lower than the shape recovery temperature.

The following 1 effect is the same as in Example 1.

The application of the liquid shape memory resin material may be applied to the entire condom or to parts of the condom if the necessary gripping force is obtained.

The liquid shape memory resin material may be applied to the outer surface, the inner surface, or both the inner and outer surfaces of the condom.

(1) Effects of the Invention As described above, the condom according to the present invention has sufficient gripping force by coming into close contact with the erect male genitals due to its rubber-like elasticity, so that it does not slip out of the erect male genitals during use. It will not come off and you can use it with confidence.

Furthermore, before being worn, it is thicker than the male genitalia in an erect state, and after being worn, it becomes thinner and fits tightly, making it easier to wear.

Furthermore, if the thickness to be memorized is made sufficiently thin, sufficient gripping force can be obtained due to the rubber-like elastic state after shape recovery, regardless of individual differences in the size of the male genitalia in the erect state.

Claims (1)

[Scope of Claims] 1. A condom in which a shape memory resin material having a shape recovery temperature in the range of 30° C. or more and 36° C. or less is molded into a condom with a shape narrower than the male genitalia in an erect state, and the molded shape is memorized. 2 A condom molded with conventional materials and shape is deformed into a shape thinner than the male genitalia in an erect state, and a liquid shape memory resin with a shape recovery temperature in the range of 30°C or more and 36°C or less is applied to the surface of the deformed condom. A condom in which the shape of a deformed condom is memorized by applying a material to the applied shape-memory resin material. 3. Condoms according to Items 1 and 2 that have been deformed into a shape that is thicker than the male genitalia in an erect state and are stored in this deformed state at a temperature lower than the shape recovery temperature.