Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F6/00—Contraceptive devices; Pessaries; Applicators therefor
  • A61F6/02—Contraceptive devices; Pessaries; Applicators therefor for use by males
  • A61F6/04—Condoms, sheaths or the like, e.g. combined with devices protecting against contagion
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
  • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
  • B29C41/14—Dipping a core

Definitions

• the present invention relates to a condom and its manufacturing method.
• condoms have been known that have an annular protrusion on the inner surface that comes into contact with the penis to tighten the penis, and that have a rubber magnet embedded in the protrusion to promote blood flow to the penis (Patent Document 1).
• the conventional condoms mentioned above aim to prevent premature ejaculation by tightening the penis with a ring-shaped protrusion, and to cure erectile dysfunction (ED) by promoting blood flow to the penis with the magnetic field of the rubber magnet.
• ED erectile dysfunction
• the magnetic field of the rubber magnet which is the component used to promote blood flow to the penis, only acts on a small part of the penis, so the promoted blood flow is only in a small part of the penis and the effect of promoting blood flow throughout the entire penis is not achieved.
• the present invention provides a condom that can promote blood flow throughout the penis and a method for manufacturing the condom.
• the invention described in claim 1 is a condom that is characterized by being formed by laminating, in the thickness direction, a layer that contains a blood flow promoting substance dispersed along the length direction and the circumferential direction, and a layer that does not contain the blood flow promoting substance.
• the condom described in claim 1 has a layer containing a blood flow promoting substance that is dispersed along the length and circumference, so that when worn on the penis, it can promote blood flow throughout the entire penis.
• the invention described in claim 2 is the condom described in claim 1, characterized in that the layer containing the dispersed blood flow promoting substance and the layer not containing the blood flow promoting substance are formed from natural rubber latex. Therefore, the condom according to claim 2 has a layer of natural rubber latex containing a blood flow-promoting substance and a layer of natural rubber latex not containing a blood flow-promoting substance laminated in the thickness direction, thereby achieving the effect of promoting blood flow throughout the penis without compromising the strength and texture required of a condom.
• the invention described in claim 3 is the condom described in claim 2, characterized in that it has a two-layer structure in which the layer containing the dispersed blood flow promoting substance is arranged on the inner side so as to come into contact with the penis when the condom is worn on the penis during use, and the layer not containing the blood flow promoting substance is arranged on the outer side.
• the layer containing the dispersed blood flow promoting substance is positioned on the inner side so that it comes into contact with the penis when worn, making it possible to directly and entirely promote blood flow to the penis when worn.
• the layer that does not contain the blood flow promoting substance is placed on the outer side, it is possible to ensure a soft feel when in use, and it is possible to ensure a feeling of use similar to that of a regular condom.
• the condom has a two-layer structure in the thickness direction, with the layer containing the blood flow-promoting substance dispersed therein being positioned on the inner side so as to come into contact with the penis when the condom is worn during use, and the layer not containing the blood flow-promoting substance being positioned on the outer side, so that the condom as a whole can ensure sufficient strength to withstand actual use even though it contains dispersed blood flow-promoting substances.
• the condom described in claim 1 wherein the blood flow promoting substance is a mineral-containing substance whose main component is silicon oxide. Therefore, in the condom according to claim 4, it is possible to exert the effect of promoting blood flow to the penis by using silicon oxide or the like as a causative substance.
• the invention described in claim 5 is the condom described in claim 3, characterized in that the silicon oxide is contained in finely powdered charcoal powder.
• the invention described in claim 6 is the condom described in claim 3, characterized in that the mineral-containing material contains finely powdered radium.
• the invention described in claim 7 is a method for manufacturing a condom, comprising a first immersion step of immersing a mold in liquid natural rubber latex, a first drying step of drying the natural rubber latex adhering to the mold after removing the mold from the natural rubber latex to form a first layer of a condom, a second immersion step of immersing the mold with the first layer adhering to it in liquid natural rubber latex containing a blood flow promoting substance, which contains a blood flow promoting substance dispersed therein, a second drying step of drying the natural rubber latex containing the blood flow promoting substance adhering to the first layer after removing the mold from the blood flow promoting substance-containing natural rubber latex to form a second layer of a condom, and a peeling step of peeling the condom with the first and second layers integrated together from the mold.
• the method for producing a condom described in claim 7 makes it possible to produce a condom that is a laminate of a layer (first layer) made only of natural rubber latex and a layer (second layer) made of natural rubber latex containing a blood flow promoting substance that is uniformly dispersed therein, that is, the condom described in claim 1.
• the invention described in claim 8 is the method for producing a condom described in claim 7, wherein the blood flow promoting substance is a mineral-containing substance whose main component is silicon oxide. Therefore, in the condom according to claim 8, it is possible to manufacture a condom that exhibits the effect of promoting blood flow to the penis by using silicon oxide or the like as a causative substance, that is, the condom according to claim 4.
• the invention described in claim 9 is the condom described in claim 7, characterized in that the silicon oxide is contained in charcoal powder.
• the invention described in claim 10 is the condom described in claim 7, characterized in that the mineral-containing material contains finely powdered radium.
• the condom of the present invention can promote blood flow throughout the penis when worn. As a result, by using the condom of the present invention, it is possible to improve erectile dysfunction (ED) in a very natural way. Furthermore, the method of manufacturing the condom of the present invention can produce a condom that can promote blood flow throughout the penis.
• ED erectile dysfunction
• FIG. 1 is a cross-sectional view showing an embodiment of a condom according to the present invention in a state where it is worn on the penis.
• FIG. 1 is a process diagram showing a method for manufacturing a condom according to one embodiment of the present invention.
• 1 is a photograph showing a condom used in a blood flow rate verification test of the condom according to the present invention. Photographs show SPAORE®, a blood flow enhancer used in blood flow rate verification tests of the condom of the present invention.
• 1 is a photograph showing a capillary image taken to show the state of blood vessels during a blood flow velocity verification test of a condom according to the present invention.
• 1 is a table showing a comparison of blood flow rates when using a condom according to the present invention and a commercially available condom.
• 1 is a graph showing blood flow velocity when using a condom according to the present invention versus a commercially available condom.
• condom 10 As shown in FIG. 1, condom 10 according to this embodiment is made of natural rubber latex and has a two-layer structure in which a layer (first layer) 11 that does not contain the blood flow-promoting substance and a layer (second layer) 12 that contains the blood flow-promoting substance dispersed along the length and circumferential directions are laminated in the thickness direction.
• first layer 11 that does not contain the blood flow-promoting substance
• second layer 12 that contains the blood flow-promoting substance dispersed along the length and circumferential directions are laminated in the thickness direction.
• the layer (second layer) 12 containing the dispersed blood flow promoting substance is arranged on the inner side so as to abut against the penis 13 when the condom is worn on the penis 13 during use, and the layer (first layer) 11 not containing the blood flow promoting substance is arranged on the outer side. Therefore, in the condom 10 according to this embodiment, the layer (second layer) 12 containing the dispersed blood flow promoting substance is disposed on the inner side so as to abut against the penis 13 when the condom is worn, and therefore, when worn, it is possible to exert a blood flow promoting effect directly and entirely on the penis 13.
• the layer (first layer) 11 that does not contain the blood flow promoting substance is positioned on the outer side, ensuring a soft feel during use, and making it possible to ensure a feel similar to that of a regular condom.
• the condom 10 has a two-layer structure in which the layer (second layer) 12 containing the dispersed blood flow-promoting substance is disposed on the inner side so as to contact the penis 13 when the condom is worn on the penis 13 during use, and the layer (first layer) 11 not containing the blood flow-promoting substance is disposed on the outer side.
• the condom 10 as a whole can have sufficient strength to withstand actual use, even though it contains dispersed blood flow-promoting substance.
• SPAORE registered trademark
• SPAORE (registered trademark) is a mineral-containing substance that contains 1% by weight of finely powdered radium and 3-100% by weight of finely powdered carbon powder (carbon powder containing silicon), and further contains at least one of finely powdered germanium and finely powdered copper.
• the carbon powder is obtained by carbonizing natural plant materials.
• the carbon powder may be rice husk charcoal pulverized into a fine powder.
• the finely powdered carbon powder in the present invention can be a finely powdered carbon-containing substance, such as graphite, graphite, or other crystalline substances, or so-called charcoal made by burning plant materials, which are amorphous substances.
• charcoal in addition to wood charcoal and bamboo charcoal, any material containing carbon can be used, such as activated charcoal made from coconut shells, coal, wood charcoal, etc.
• charcoal When using charcoal, charcoal may be finely powdered charcoal that has been fired by the user, or charcoal that is commercially available under various names such as powdered charcoal (powdered charcoal), charcoal dust, charcoal fine powder, powdered charcoal, charcoal powder, etc. may be used.
• the above-mentioned crystalline carbon may be powdered and mixed with a powder of a silicon compound, or carbon powder made from carbonized natural plant materials may be used since it contains silicon derived from plants.
• silicon compound a wide variety of silicon-containing compounds can be used, such as silica (silicon dioxide), synthetic amorphous silica (silicon dioxide), aluminum silicate, magnesium silicate, calcium silicate, zirconium silicate, silicon carbide, diatomaceous earth, etc.
• silica silica
• sicon dioxide synthetic amorphous silica (silicon dioxide)
• aluminum silicate magnesium silicate
• calcium silicate calcium silicate
• zirconium silicate silicon carbide
• diatomaceous earth etc.
• carbonized natural plant material rice husk charcoal or other charcoal that is inexpensive and widely available can be used, or charcoal or charcoal made by burning plant materials such as wood, bamboo, rice husk, etc. can be used.
• plant materials that have been burned at high temperature for a short period of time can be preferably used.
• the firing conditions are preferably 800-1200°C for 2-4 hours. During firing, it is desirable to reach a firing temperature of 800-1200°C as quickly as possible from the start of firing, and it is particularly desirable to quickly raise the voltage of the firing furnace and reach the firing temperature in 30-60 minutes from the start of firing. It is possible to mix charcoal powder with a high silicon content, which is made from charcoal or smoked charcoal that has been fired at such high temperatures for such a short time, with fine particle radium.
• finely powdered radium refers to compounds containing radium, such as radium compounds such as radium oxide, radium hydroxide, radium fluoride, radium chloride, radium bromide, radium iodide, radium carbonate, radium sulfate, radium sulfide, and radium peroxide, as well as substances made by powdering natural ores containing radium using known methods.
• radium compounds such as radium oxide, radium hydroxide, radium fluoride, radium chloride, radium bromide, radium iodide, radium carbonate, radium sulfate, radium sulfide, and radium peroxide, as well as substances made by powdering natural ores containing radium using known methods.
• finely powdered germanium refers to compounds containing germanium, such as germanium dioxide, germanium hydroxide, germanium tetramethoxide, germanium tetraethoxide, germanium tetrabutoxide, germanium ethyleneglycoxide, and other germanium alkoxide compounds, germanium phenoxide compounds such as germanium phenolate and germanium- ⁇ -naphtholate, phosphorus-containing germanium compounds such as germanium phosphate, germanium phosphite, and germanium hypophosphite, and germanium acetate compounds, as well as compounds containing germanium, such as natural ores and minerals containing germanium, which are made into a fine powder form by known methods.
• germanium such as germanium dioxide, germanium hydroxide, germanium tetramethoxide, germanium tetraethoxide, germanium tetrabutoxide, germanium ethyleneglycoxide, and other germanium alkoxide compounds, german
• fine powdered copper refers to copper compounds such as copper (I) oxide, copper (II) oxide, copper (I) chloride, copper (II) chloride, copper (I) sulfide, copper (II) sulfide, copper (I) acetate, copper (II) acetate, copper (I) sulfate, and copper (II) sulfate, as well as substances made by using refined copper or copper minerals as raw materials and turning these substances into fine powder by known methods.
• the above germanium, radium, and copper compounds may be in a liquid state such as an aqueous solution and impregnated into charcoal powder, as described below.
• the finely powdered carbon powder in the present invention can be a finely powdered carbon-containing substance, such as graphite, graphite, or other crystalline substances, or so-called charcoal made by burning plant materials, which are amorphous substances.
• charcoal in addition to wood charcoal and bamboo charcoal, any material containing carbon can be used, such as activated charcoal made from coconut shells, coal, wood charcoal, etc.
• charcoal may be finely powdered charcoal that has been fired by the user, or charcoal that is commercially available under various names such as powdered charcoal (powdered charcoal), charcoal dust, charcoal fine powder, powdered charcoal, charcoal powder, etc. may be used.
• a pre-vulcanized natural rubber latex liquid containing SPAORE (registered trademark)
• An aqueous solution of 30 wt % SPAORE is prepared at 2.334, and 100 pieces of pre-vulcanized natural rubber latex are weighed out and placed in a container. The weighed out pre-vulcanized natural rubber latex is stirred at 100 RPM with a stirrer.
• 2.334 of an aqueous solution of SPAORE having a concentration of 30 wt % is added to the pre-vulcanized natural rubber latex liquid, and the mixture is stirred for 1 hour at 100 RPM with the stirrer, thereby completing a pre-vulcanized natural rubber latex liquid containing SPAORE.
• the above amounts are relative weights, and when the amount of the pre-vulcanized natural rubber latex liquid initially weighed is 100 g, the amount of the 30 wt % aqueous SPAORE solution will be 2.334 g.
• the blood flow promoting substance is a mineral-containing substance whose main component is silicon oxide.
• a suitable example of the blood flow promoting substance is SPAORE (registered trademark).
• the mold 20 with the first layer 11 attached is immersed in the pre-vulcanized natural rubber latex liquid containing SPAORE (registered trademark), i.e., liquid natural rubber latex 32 containing the blood flow promoting substance (second immersion step).
• the mold 20 is pulled out of the natural rubber latex 32 containing the blood flow promoting substance.
• a liquid natural rubber latex 32 containing a blood flow promoting substance is attached to the outer surface of the first layer 11 attached to the mold 20.
• the second layer 12 of the condom 10 is formed on the outer surface of the first layer 11 attached to the mold 20 (second drying step).
• the condom 10 is produced on the surface of the mold 20, with the first layer 11 and the second layer 12 laminated and integrated together.
• the condom 10 is peeled off from the mold 20 (peeling step), thereby completing the condom 10 of one embodiment of the present invention as shown in Fig. 2(E).
• peeling step as condom 10 is peeled from mold 20, the inner and outer surfaces of condom 10 are inverted, so that in the finished condom 10, the layer made of blood flow-promoting substance-containing natural rubber latex 32 which has the blood flow-promoting substance uniformly dispersed therein (second layer 12) becomes the inner layer which comes into direct contact with the user's penis when in use, and the layer made of natural rubber latex 31 which does not contain the blood flow-promoting substance (first layer 11) becomes the outer layer.
• condom 10 which is laminated as shown in FIG. 1 , in which a layer (second layer 12) made of blood flow-promoting substance-containing natural rubber latex 32 containing a blood flow-promoting substance uniformly dispersed therein is used as an inner layer, and a layer (first layer 11) made of natural rubber latex 31 not containing a blood flow-promoting substance is used as an outer layer.
• a layer (second layer 12) made of blood flow-promoting substance-containing natural rubber latex 32 containing a blood flow-promoting substance uniformly dispersed therein is used as an inner layer
• first layer 11 made of natural rubber latex 31 not containing a blood flow-promoting substance
• This condom 10 has a two-layer structure in the overall thickness direction, with a layer (first layer 11) made of natural rubber latex 31 that does not contain blood flow-promoting substances as the outer layer, and a layer (second layer 12) made of natural rubber latex 32 that contains blood flow-promoting substances uniformly dispersed therein as the inner layer. Therefore, when worn on the penis, the layer (second layer 12) made of natural rubber latex 32 that contains blood flow-promoting substances uniformly dispersed therein comes into direct contact with the user's penis, acting on the entire penis and promoting blood flow throughout the penis.
• a layer (second layer 12) made of natural rubber latex 32 containing a blood flow-promoting substance and a layer (first layer 11) made of natural rubber latex 31 not containing a blood flow-promoting substance it is possible to obtain the effect of promoting blood flow throughout the penis without compromising the strength and texture required of a condom.
• a mineral-containing substance whose main component is silicon oxide as the blood flow promoting substance, the effect of promoting good blood flow in the penis can be obtained.
• SPAORE registered trademark
• the effect of promoting good blood flow in the penis can be obtained with high certainty.
• the present invention is not limited to the above embodiment.
• a mineral-containing substance mainly composed of silicon oxide in particular SPAORE (registered trademark)
• SPAORE registered trademark
• a condom can also be constructed by dispersing minerals that have a similar blood flow promoting effect in natural rubber latex as a blood flow promoting substance, and the blood flow promoting substance is not limited to SPAORE.
• the condom of the present invention and the commercially available condom for comparison are both condoms made of the same quality of natural rubber latex, except that the condom of the present invention is a laminate of a layer containing SPAORE (registered trademark) and a layer that does not contain it.
• SPAORE registered trademark
• the concentration of SPAORE® in the SPAORE®-containing layer (second layer 12) of the condom of the present invention is 1.38% by weight.
• Test Contents The test was conducted by TFC Lab Co., Ltd., in the TFC Lab measurement room, and took place over a 10-day period.
• the specific test contents and procedures are as follows: The subject's left hand was allowed to acclimate for 10 minutes in a measurement room with a temperature of 23 ⁇ 1°C and a humidity of 50 ⁇ 5%, and the measurement was then performed with nothing on the left ring finger. The condom of the present invention was then placed on the left ring finger and removed after 1 minute, and the measurement was performed again immediately thereafter.
• the blood flow rate As shown in the graph of FIG. 7, when the condom of the present invention was used, the blood flow rate, which was 120.24 ⁇ l/sec before use, increased to 162.96 ⁇ l/sec immediately after use, showing a significant and large increase in blood flow rate. On the other hand, for commercially available condoms, the blood flow rate was 108.72 ⁇ l/sec before use and 109.34 ⁇ l/sec immediately after use, showing no increase in blood flow rate.
• the condom 10 according to the present invention is described with the layer containing dispersed blood flow promoting substances and the layer not containing the blood flow promoting substances being made of natural rubber latex, but this is not limited to the above embodiment, and polyurethane may also be used as the material constituting the condom.

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• Health & Medical Sciences (AREA)
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• 2023
  • 2023-06-20 WO PCT/JP2023/022830 patent/WO2024261882A1/ja not_active Ceased
  • 2023-06-20 JP JP2025527280A patent/JPWO2024261882A1/ja active Pending

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