Semen collector and method for manufacturing semen collector

Abstract

The present invention provides a semen collector and a method for manufacturing the same, which have excellent design and good usability. The semen collector (1) of the present invention has a double-layer structure in which an outer layer is formed so as to cover the periphery of an inner layer (2) having an insert (21). The outer layer (3) allows visual confirmation of the inner layer (2) from the outside. As a result, the design of the inner layer (2) can be easily visually confirmed from the outside, and the semen collector (1) has excellent design, including the shape of the inner layer (2). In addition, since voids (25) are formed on the outer surface of the inner layer (2), the voids (25) form a patterned design on the inner layer (2), resulting in a semen collector (1) with excellent design. In addition, by making the protrusions (31) formed on the inner surface of the outer layer (3) enter the space formed by the voids (25) on the inner wall of the insert (21), subtle changes in the tactile feel can be added to the usability, resulting in a good usability.

Description

Technical Field

[0001] The present invention relates to a semen collector and a method for manufacturing the semen collector, and more particularly to a semen collector used as a semen (sperm) collector and a method for manufacturing the semen collector. Background Art

[0002] A semen collector or sperm collector is composed of a cylindrical member having an insertion port disposed on one end face in the longitudinal direction thereof and an insertion portion formed as a space extending inward from the insertion port. Various studies have been conducted on the internal structure of the cylindrical member. Furthermore, such a semen collector is extremely important as a sperm collector (sperm collector, sperm collection device, etc.) from the perspectives of medical research and eugenics.

[0003] Conventional semen collectors, for example, have the following structure: a cylindrical member formed of an elastic polymer such as an elastically deformable elastomer or synthetic resin, having an insertion port and a spaced insertion portion within the cylindrical member, with a plurality of small protrusions or pleats formed on the inner wall of the insertion portion (see, for example, Patent Documents 1 and 2). Examples of the small protrusions or pleats formed on the inner wall of the insertion portion of the cylindrical member include, for example, straight or wavy ribs, or polyp-like small protrusions or pleats.

[0004] Patent Document 1: Japanese Utility Model Registration No. 3135770

[0005] Patent Document 2: Japanese Patent Application Laid-Open No. 2012-239560

[0006] Conventional semen collectors, for example, only require a grip to provide a restraining force, so many products have few design restrictions. Furthermore, as mentioned above, conventional semen collectors often only have a protrusion on the insertion portion. Furthermore, research on the shape of the protrusion is limited, making it difficult to vary the feel of use. Summary of the Invention

[0007] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a semen collecting device having excellent design and good usability, and a method for manufacturing the semen collecting device.

[0008] In order to achieve the above-mentioned object, the semen collecting device of the present invention is characterized by comprising:

[0009] The inner layer is elastically deformable and formed into a cylindrical shape, has an insertion port arranged on at least one end face in the longitudinal direction, has an insertion portion forming a space extending inward from the insertion port, and has a protrusion formed on the inner surface of the insertion portion; and

[0010] The outer layer is elastically deformable, has an insertion port at the same position as the insertion port of the inner layer, is formed into a shape that can be grasped by hand, and is formed to cover the periphery of the inner layer.

[0011] The inner layer is formed with a gap extending from the outer surface to the insertion portion.

[0012] The outer layer enables visual confirmation of the inner layer from the outside.

[0013] The semen collector of the present invention is characterized in that the inner layer is colored and the outer layer is transparent.

[0014] The semen collector of the present invention is characterized in that inwardly directed protrusions are formed on the inner surface of the outer layer at positions corresponding to the gaps in the inner layer.

[0015] The semen collector of the present invention is characterized in that the constituent material of the inner layer contains a water-absorbing resin in addition to the elastic polymer, and the constituent material of the outer layer contains the elastic polymer as a main component.

[0016] The semen collector of the present invention in the present invention is characterized in that the water-absorbing resin is contained in an amount of 1 to 100 parts by mass per 100 parts by mass of the elastic polymer constituting the inner layer.

[0017] The semen collector of the present invention is characterized in that the water-absorbing resin constituting the inner layer is sodium polyacrylate, and the elastic polymer constituting the inner layer and the outer layer is a thermoplastic elastomer.

[0018] The manufacturing method of the semen collector of the present invention is a method for manufacturing the semen collector of the present invention, characterized by comprising:

[0019] A step of using a core mold and an inner frame mold, which are molds that are combined to form the shape of the inner layer, and installing the core mold inside the inner frame mold;

[0020] A process of injecting a molten material constituting the inner layer into the inner frame mold and cooling and solidifying the material;

[0021] a step of removing the core mold having the shape of the inner layer formed around it from the inner frame mold;

[0022] The step of installing the core mold having the shape of the inner layer formed around the core mold inside an outer frame mold for forming the shape of the outer layer;

[0023] A process of injecting a molten material constituting the outer layer into the interior of the outer frame mold and cooling and solidifying the material;

[0024] a step of removing the core mold having the shape of the inner layer and the shape of the outer layer formed therearound from the outer frame mold; and

[0025] a step of removing the molded article having the inner layer and the outer layer formed thereon from the core mold.

[0026] The semen collector of the present invention has at least a two-layer structure, with an outer layer formed so as to cover the periphery of the inner layer on which the insert is formed. The outer layer allows visual inspection of the inner layer from the outside, making the design of the inner layer easily visible from the outside. This, including the consideration of the shape of the inner layer, results in a semen collector with excellent design. Furthermore, since voids are formed on the outer surface of the inner layer, the voids create a patterned design on the inner layer. This, combined with the design of the inner layer's external shape, allows visual inspection of the inner layer's design from the outside, also resulting in a semen collector with excellent design. Furthermore, by forming a space formed by the voids on the inner wall of the insert, subtle changes in tactile feel, such as when other components enter the space, can be used to vary the feel of the device, resulting in a favorable user experience.

[0027] The method for manufacturing a semen collecting device of the present invention can provide a semen collecting device having the above-mentioned effects by a simple method. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view showing one embodiment of the semen collector of the present invention.

[0029] Figure 2 This is a front view showing one embodiment of the semen collector of the present invention.

[0030] Figure 3 This is a perspective view showing one embodiment of the semen collecting device of the present invention.

[0031] Figure 4 This is a perspective view showing one embodiment of the semen collecting device of the present invention.

[0032] Figure 5 Yes Figure 1 Diagram of the internal structure of a semen collector.

[0033] Figure 6 Yes Figure 3 Diagram of the internal structure of a semen collector.

[0034] Figure 7 yes Figure 6 A partial enlarged view of .

[0035] Figure 8 This is a diagram showing the relationship between the inner layer, the voids, and the protrusions of the outer layer.

[0036] Figure 9 This is a perspective view showing one form of the inner layer.

[0037] Figure 10 This is a front view showing the internal structure of the inner layer.

[0038] Figure 11 It is a perspective view showing the internal structure of the inner layer.

[0039] Figure 12 This is a front view showing one way of showing the internal structure of the outer layer.

[0040] Figure 13 This is a perspective view showing one form of the internal structure of the outer layer.

[0041] Figure 14 This is an explanatory diagram showing an example of a mold and the like used for manufacturing a semen collecting device.

[0042] Figure 15 This is an explanatory diagram showing an example of a mold and the like used for manufacturing a semen collecting device.

[0043] Figure 16 This is an explanatory diagram showing an example of a mold and the like used for manufacturing a semen collecting device.

[0044] Figure 17 This is an explanatory diagram showing an example of a mold and the like used for manufacturing a semen collecting device.

[0045] Figure 18 This is an explanatory diagram showing an example of a mold and the like used for manufacturing a semen collecting device.

[0046] Figure 19 This is a perspective view showing another embodiment of the semen collector of the present invention.

[0047] Figure 20 This is a perspective view showing another embodiment of the semen collector of the present invention.

[0048] Description of reference numerals:

[0049] 1: Semen collector; 2: Inner layer; 2a: Outer surface of inner layer; 21: Insertion part; 22: Middle diameter part; 23, 24: Large diameter part; 25: Gap; 26: Small diameter part; 3: Outer layer; 3a: Inner surface of outer layer; 31: Protrusion; 32: Middle diameter part; 33, 34: Large diameter part; 36: Small diameter part; 5: Core mold; 51: Insertion part and other forming part; 52: Gap forming part; 53: Protrusion forming part; 54: Insertion port forming part; 6: Inner frame mold; 61: Material injection port; 7: Outer frame mold; 71: Material injection port; S: Insertion port; X: Raised part; L1, L2: Boundary. DETAILED DESCRIPTION

[0050] Hereinafter, examples of embodiments of the present invention will be described with reference to the drawings.

[0051] (1) Structure of semen collector 1:

[0052] Figure 1 and Figure 2 This is a front view showing one embodiment of the semen collector 1 of the present invention ( Figure 1 and Figure 2 different observation directions), Figure 3 and Figure 4 This is a perspective view showing one embodiment of the semen collector 1 of the present invention (about Figure 4 Also refer to the following content). In addition, Figure 5 Yes Figure 1 Figure 1 shows the internal structure of the semen collector 1. Figure 6 Yes Figure 3 FIG. 1 shows the internal structure of the semen collector 1. In addition, the reference numerals do not mark all the components etc. Figure 5 and Figure 6 In the figures, reference numerals (22 to 24, 26, 32 to 34, 36) related to the diameters of the inner layer 2 and the outer layer 3 are not given.

[0053] In addition, the semen collector 1 of the present invention is formed so that the outer layer 3 can be visually confirmed from the outside. Figure 4 Other than (and the following Figures 9 to 11 etc.), and the portion corresponding to the inner layer 2 is easily distinguished by marking numerous "·" (dots). Figure 1 etc., since the outline of the outer layer 3 (and the semen collector 1) is difficult to distinguish, Figure 4 In the figure, the semen collector 1 is shown as an appearance without depicting the inner layer 2. Figure 4 In FIG. 1 , the boundary between the small diameter portion 36 and the large diameter portions 33 and 34 is described as a boundary L1 , and the boundary between the small diameter portion 36 and the medium diameter portion 32 is described as a boundary L2 .

[0054] Figures 1 to 6 The semen collector 1 of the present invention can also be used as a device for collecting sperm (semen) (sperm (semen) collector or sperm (semen) collecting device), such as Figures 1 to 6 As shown in FIG. 1 , the semen collector 1 has the following structure:

[0055] The inner layer 2 is elastically deformable and forms a cylindrical shape. Figure 1At least one end surface of the insert port S is provided in the direction of the arrow (→), and an insert portion 21 is formed to extend inwardly from the insert port S. A protrusion is formed on the inner surface of the insert portion 21; and

[0056] The outer layer 3 is elastically deformable and has an insertion port S at the same position as the insertion port S of the inner layer 2, so as to be shaped so as to be graspable by hand and to cover the periphery of the inner layer 2.

[0057] The inner layer 2 is formed with a gap 25 extending from the outer surface to the insertion portion 21.

[0058] The outer layer 3 allows the inner layer 2 to be visually confirmed from the outside.

[0059] like Figures 1 to 3 、 Figure 5 and Figure 6 As shown, the semen collector 1 of this embodiment has protrusions formed on the inner wall of the insertion portion S. In (III) described later, the following method is shown: in order to produce lubrication during use, liquids such as water can be brought into contact with the insertion portion 21 formed with the protrusions (these will also be described later). In addition, as Figures 1 to 3 As shown in FIG. 1 and FIG. 2 , the semen collecting device 1 of the present invention has at least a double-layer structure in which the outer layer 3 covers the periphery of the inner layer 2. The structures of the inner layer 2 and the outer layer 3 constituting the semen collecting device 1 will be described below.

[0060] (1) Structure of inner layer 2:

[0061] Figure 7 yes Figure 6 A partial enlarged view of Figure 8 2 is a diagram showing the positional relationship between the voids 25 of the inner layer 2 and the protrusions 31 of the outer layer 3. Figure 9 This is a perspective view showing one embodiment of the inner layer 2. Figure 10 It is a front view showing the internal structure of the inner layer 2, Figure 11 2 is a perspective view showing the internal structure of the inner layer 2. Figure 8 In the figure, it can be observed that the portion corresponding to the gap 25 in the inner layer 2 (“·”) and the Figure 1 The same as the others) and the other parts (“·” is thicker than the others). Figures 9 to 11 The outer surface of the inner layer 2 is indicated as 2a. Figures 1 to 11 (in particular Figure 1 、 Figure 10 ), the inner layer 2 constituting the semen collector 1 is elastically deformable and cylindrical in shape, an insertion port S is arranged at one end face in the longitudinal direction, and an insertion portion 21 is formed which is a space extending from the insertion port S to the interior.

[0062] like Figure 1 、 Figure 4 As shown in FIG. 1 , the inner layer 2 is covered by an outer layer 3 (the outer layer 3 will be described later) formed into a cylindrical shape that can be grasped by the hand of a user (not shown. The same applies hereinafter). However, as shown in FIG. Figure 9 As shown in FIG. 1 and FIG. 2 , the inner layer 2 in this embodiment is also formed in accordance with the shape of the outer layer 3 and has a cylindrical shape that can be grasped by the user's hand.

[0063] In this embodiment, the shape of the inner layer 2 is as follows Figure 9 As shown in the figures, approximately in the center of the long side direction, the middle diameter portion 22 which is a gentle mountain shape when viewed from above is set as the center, and the mountain-shaped large diameter portions 23 and 24 which have a diameter larger than the middle diameter portion 22 are symmetrically formed with a small diameter portion 26 which has a diameter smaller than the middle diameter portion 22 and forms a valley.

[0064] like Figure 5 、 Figure 10 As shown, in this embodiment, the semen collector 1 has a protrusion (protrusion X) formed on the inner wall of the insertion portion 21. Examples of the shape of the protrusion (protrusion X) include a convex portion (protrusion), a pleated shape, a wart (protrusion) shape, an accordion shape, a continuous step shape, etc. These protrusions X can be formed in a predetermined configuration. Figure 5 、 Figure 6 、 Figures 7 to 11 , etc., show a mode in which a bellows shape, a continuous step shape, or the like as an example of the protrusion X is formed in a predetermined arrangement.

[0065] Furthermore, the protrusion (protrusion X) formed on the inner surface (inner wall) of the insertion portion 21 may be formed into different shapes near the insertion port S and near the front end of the insertion portion 21. Furthermore, the protrusion may be formed into different shapes and arrangements near the insertion port S and near the approximate center of the insertion portion 21. Such shapes and arrangements may be arbitrarily determined. For example, the protrusion may be formed into different shapes near the insertion port S and near the approximate center or near the front end of the insertion portion 21.

[0066] The inner layer 2 is preferably colored so that it can be visually confirmed from the outside through the outer layer 3 described later. In order to color the inner layer 2, a colorant can be added to the constituent material of the inner layer 2 to color the entire inner layer 2 including the interior, or the outer surface of the inner layer 2 can be colored, and the details will be described later.

[0067] like Figures 9 to 11As shown in FIG. 1 , a plurality of voids (holes, slits, etc.) 25 are formed on the outer surface (wall surface) 2a of the inner layer 2. The voids 25 extend through the insertion portion 21, which is a space formed inside the inner layer 2. In this embodiment, the voids 25 are rhombus-shaped (square (◇) shape) when viewed from the front, and a plurality of the rhombus-shaped voids 25 are formed so as to extend from the outer surface of the inner layer 2 to and extend through the insertion portion 21.

[0068] Thus, by forming the void 25 penetrating the insertion portion 21 on the outer surface 2a of the inner layer 2, the void 25 forms a patterned design on the inner layer 2, which is coordinated with the design of the outer shape of the inner layer 2 and has a design property. Since the inner layer 2 having the above-mentioned design property can be visually confirmed from the outer layer, it becomes a semen collector 1 with excellent design. In addition, a space formed by the void 25 is formed on the inner surface (inner wall) of the insertion portion 21, and other components are inserted into the above-mentioned space (in this embodiment, the protrusion 31 formed on the inner surface of the outer layer 3 and penetrating the insertion portion 21) (see Figure 7 、 Figure 8 The subtle changes in the tactile sensation caused by the above-mentioned factors (such as the above-mentioned factors) can change the feeling of use (enable various feelings of use), resulting in a semen collector 1 with good usability.

[0069] In addition, the gap 25 formed on the outer surface 2a of the inner layer 2 only needs to be formed with one or more gaps relative to the outer surface 2a of the inner layer 2. In order to improve the design and effectively change the feeling of use, it is preferred that the gap 25 be formed as follows: Figure 1 wait, Figure 9 In addition, the shape of the void 25 formed in a manner of penetrating from the outer surface 2a of the inner layer 2 to the inner insertion portion 21 is not limited to the rhombus, and can be any shape such as a triangle, a quadrilateral (including a rectangle, a square, etc.), a pentagon or other polygon, a circle, an ellipse, a geometric shape, etc. when observed from the front. In addition, when a plurality of voids 25 are formed, they can be of the same shape as a whole, or they can be of multiple shapes. In addition, the area that can be confirmed from the outer surface 2a of the inner layer 2, the number, the proportion of the area of the outer surface 2a of the inner layer 2 (including the area of the void 25. The same applies hereinafter) (considering strength, etc., it is preferred that the proportion of the area of the void 25 (as a whole) is set to less than half (50%) of the area of the outer surface 2a of the inner layer 2 as a whole, but it is not particularly limited to this), the position, etc. can all be determined arbitrarily. In addition, the void 25 (and the inner surface 3a formed on the outer layer 3 (refer to Figure 12 Other forms of the shape of the protrusion 31) are used Figure 19 and Figure 20 Explained later.

[0070] In addition, if Figures 5 to 8As shown, in this embodiment, a triangular (△, ▽)-shaped protrusion 51 formed on the inner surface 3a of the outer layer 3 described later when viewed from the front (cross-section) is shown entering the gap 25 of the inner layer 2, which will be described later.

[0071] Next, the constituent materials of the inner layer 2 are described. As the material constituting the inner layer 2 that is elastically deformable (in the deformation caused by applying a force to an object, the deformation (elastic deformation) that completely returns to the original shape if the force is removed is free (arbitrary). The same applies to the outer layer 3 below), it is preferred to use a material with appropriate elasticity, stretchability, and softness, and preferably an elastic polymer (also called a soft resin). As the above-mentioned elastic polymer, for example, thermoplastic elastomers, elastomers, gel-like rubbers, silicone resins, polystyrene resins, polyurethane resins, soft polyvinyl chloride (PVC) resins, soft polyolefin resins, etc. can be used. These elastic polymers can be used alone or in combination of two or more.

[0072] As elastic polymer, including the outer layer 3 described later, considering the aspects of formability, cost, good feel when used as a formed body, it is preferred to use a thermoplastic elastomer. As a thermoplastic elastomer, for example, styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), (hydrogenated) styrene-ethylene-propylene block copolymer (SEP), (hydrogenated) styrene-ethylene-butylene-styrene block copolymer (SEBS), (hydrogenated) styrene-ethylene-propylene-styrene block copolymer (SEPS), (hydrogenated) styrene-ethylene-ethylene-propylene-styrene block copolymer (SEEPS), styrene-butadiene block copolymer (SBR), (hydrogenated) styrene-butadiene block copolymer (SEB), styrene-isoprene block copolymer (SIR), hydrogenated styrene-isoprene block copolymer (SEP), styrene-isoprene-styrene block copolymer (SIS) and other styrene-based thermoplastic elastomers can be used. These can be used alone or in combination of two or more.

[0073] In addition, for example, natural rubber, polybutadiene, polyisoprene, polyisobutylene, chloroprene, polysulfide rubber, polysulfide rubber, acrylic rubber, polyurethane rubber, silicone rubber, epichlorohydrin rubber, ethylene propylene rubber (EPR), ethylene propylene diene rubber (EPDM), butadiene-acrylonitrile-styrene core-shell rubber (ABS), methyl methacrylate-butadiene-styrene core-shell rubber (MBS), methyl methacrylate-butyl acrylate-styrene core-shell rubber (MAS), octyl acrylate-butadiene-styrene core-shell rubber (MABS), alkyl acrylate-butadiene-acrylonitrile-styrene core-shell rubber (AABS), butadiene-styrene core-shell rubber (SBR), methyl methacrylate-butyl acrylate-siloxanes etc. contain the granular elastomer of the core-shell type such as the core-shell rubber of siloxane, or the rubber obtained by their modification etc. These thermoplastic elastomers can be used alone or in combination of two or more. These can be used alone or in combination of two or more.

[0074] In addition, in the present invention, as the constituent material of the inner layer 2, it is preferred that a water-absorbing resin (also referred to as a water-absorbing polymer, a water-absorbing polymer) be contained relative to the elastic polymer. By using the elastic polymer and the water-absorbing resin in combination as the constituent materials of the inner layer 2, the elastic polymer is dispersed into the elastic polymer that becomes the base material when the inner layer 2 is formed, thereby imparting water absorption to the inner layer 2. By bringing a liquid such as water (hereinafter sometimes referred to as "water, etc.") into contact with the inner layer 2 and causing gelation, lubrication can be generated on the surface of the insertion portion 21. In addition, since the above-mentioned moderate lubrication is the same as injecting an emulsion into the insertion portion 21, the use of the emulsion can be minimized, and preferably, no emulsion is required.

[0075] The water-absorbing resin is not particularly limited, and examples thereof include polyacrylic acid salts (crosslinked products containing polyacrylic acid salts), polyacrylamide, hydrolyzates of starch-acrylonitrile graft copolymers, crosslinked carboxymethylcellulose, acrylic acid (salt)-vinyl alcohol copolymers, crosslinked polyoxyethylenes, and thermoplastic resins containing polyalkylene oxide units.

[0076] Generally speaking, acrylic acid polymers have a high hydrophilicity due to the presence of multiple carboxyl groups, and therefore preferably contain polyacrylate salts as water-absorbent resins. Furthermore, if cross-linked into a network structure as needed, in the form of a sodium salt, it becomes a gel with high water absorption, exhibiting excellent properties. Therefore, sodium polyacrylate is particularly preferred. Sodium polyacrylate can also be used in the form of a cross-linked sodium polyacrylate (sodium polyacrylate cross-linked body). Sodium polyacrylate is also known as a highly absorbent resin (super absorbent polymer) and can absorb large amounts of water with the addition of a small amount, making it suitable for the purposes of the present invention.

[0077] The water-absorbing resin can be used in liquid or powdered form (including powdered and granular forms), but is preferably in powdered form. Powdered resin not only increases its surface area but also further enhances its water absorption capacity. Furthermore, it allows for good dispersion into the elastic polymer serving as the base material. The average particle size is not particularly limited, but is preferably 1 to 1000 μm, for example. Known shapes such as spherical, plate-like, granular, and irregular shapes can be used.

[0078] The content of the water-absorbent resin relative to the elastic polymer, which is a constituent material of the inner layer 2, can be appropriately determined depending on the type of elastic polymer used, the type of water-absorbent resin, and the required properties (degree of lubricity). Increasing the content of the water-absorbent resin is believed to allow lubrication even with a small amount of water. The content is preferably approximately 1 part by mass or greater, and more preferably 1 to 100 parts by mass, relative to 100 parts by mass of the elastic polymer. If the content of the water-absorbent resin is less than 1 part by mass relative to 100 parts by mass of the elastic polymer, lubrication may not occur even when water or the like comes into contact. If the content is greater than 100 parts by mass, the content may exceed the elastic polymer content, affecting elastic deformation and possibly resulting in slightly higher costs.

[0079] While increasing the water-absorbent resin content slightly increases the cost of the water-absorbent resin, it also increases the number of times the product can be gelled, offering the advantage of further increasing the number of uses. The water-absorbent resin content relative to the elastic polymer is more preferably 5 to 100 parts by mass per 100 parts by mass of the elastic polymer. To reduce costs and provide a good feel, the content is more preferably 5 to 20 parts by mass, and particularly preferably 8 to 20 parts by mass per 100 parts by mass of the elastic polymer.

[0080] In order to make the shape of the inner layer 2 easy to visually confirm from the outside, the semen collector 1 of the present invention is preferably colored as described above. In order to color the inner layer 2, a conventionally known colorant can be added to the constituent material of the inner layer 2. In addition, the outer surface of the inner layer 2 can be painted (see Figure 9 In consideration of the simplification of the production of the inner layer 2, it is preferred that a coloring agent be added to the constituent material of the inner layer 2 when the inner layer 2 is colored.

[0081] Furthermore, a foaming agent may be added to the aforementioned constituent materials. By adding a foaming agent, the inner layer 2 achieves appropriate softness and elasticity, allowing it to conform to human skin. Conventionally known foaming agents can be used, including, for example, inorganic thermally decomposable chemical foaming agents, organic thermally decomposable chemical foaming agents, and other chemical foaming agents, as well as physical foaming agents. The effectiveness of the use of the foaming agent also applies to the outer layer 3, described later.

[0082] The content of the foaming agent in the inner layer 2 is not particularly limited and can be appropriately determined according to the required degree of foaming, softness, etc. For example, it is preferably 0.1 to 50 parts by mass, particularly preferably 0.1 to 10 parts by mass, relative to 100 parts by mass of the elastic polymer.

[0083] (2) Structure of outer layer 3:

[0084] Figure 12 This is a front view showing the internal structure of the outer layer 3 (only the outer layer 3). Figure 13 It is a perspective view showing the inner structure of the outer layer 3 (only the outer layer 3). Figure 12 and Figure 13 The inner surface of the outer layer 3 is indicated as 3a). Figure 1 As shown in FIG. 1 , the outer layer 3 constituting the semen collector 1 is formed to cover the inner layer 2. The inner surface 3a of the elastically deformable outer layer 3 (in addition, the inner layer 2 and the outer layer 3 are both elastically deformable, so the semen collector 1 formed by them is also elastically deformable) is in close contact with the outer surface 2a of the elastically deformable inner layer 2. On the inner surface 3a of the outer layer 3, a protrusion 31 having a triangular (△, ▽) shape (sometimes a quadrilateral. The same applies to the protrusion 31) when observed from the front (cross-section) is formed at a position corresponding to the gap 25 of the inner layer 2. Figures 5 to 8 (especially referring to Figure 7 、 Figure 8 ), as described above, the protrusion 31 makes its front end face the insertion portion 21 of the inner layer 2 and enters the interior of the rhombus-shaped (rhombus (◇)-shaped) gap 25 formed on the outer surface 2a of the inner layer 2. Figures 5 to 8 (especially referring to Figure 7 、 Figure 8 ), in this embodiment, the front end of the protrusion 31 is exposed (extended) in the insertion portion 21 of the inner layer 2.

[0085] In this embodiment, specifically, the following method is shown: in one of the rhombus-shaped (square (◇) shape) gaps 25 formed on the outer surface 2a of the inner layer 2, protrusions 31 that are triangular (△) and triangular (▽) (the latter is also called an inverted triangle) when observed in the main view (cross-section) formed on the inner surface 3a of the outer layer 3 are combined one by one and enter the interior thereof.

[0086] The outer surface (wall surface) 2a of the inner layer 2 having the voids 25 formed therein contacts the inner surface 3a of the outer layer 3, and the protrusions 31 formed on the inner surface 3a of the outer layer 3 enter the voids 25 formed on the outer surface 2a of the inner layer 2. Figures 5 to 8 (especially referring to Figure 7 、 Figure 8), the tip of the protrusion 31 is exposed in the insertion portion 21 of the inner layer 2. However, when viewed from the insertion portion 21 side of the inner layer 2, the exposed tip of the protrusion 31 provides a tactile sensation together with the raised portion X formed on the insertion portion 21 of the inner layer 2. That is, in the semen collector 1 of this embodiment, the protrusion 31 or the tip of the protrusion 31 that enters the insertion portion 21 of the inner layer 2 from the outer layer 3 is the same as the raised portion X formed on the insertion portion 21 of the inner layer 2. Furthermore, the protrusion 31 formed on the inner surface 3a of the outer layer 3 is not limited to the aforementioned triangular shape. When viewed from the front (or in cross-section), it can have any shape, such as a quadrilateral (including rectangles, squares, and rhombuses), a polygonal shape such as a pentagon, a circle, an ellipse, or a geometric shape. Furthermore, when multiple protrusions 31 are formed, they can have a common shape or a variety of shapes. The area, number, proportion within the outer layer 3, and position can all be determined arbitrarily.

[0087] As described Figures 5 to 8 As shown in FIG. 1 , the protrusion 31 formed on the inner surface 3a of the outer layer 3 preferably has the front end of the protrusion 31 reach the insertion portion 21 of the inner layer 2. However, even if it does not reach the insertion portion 21, when the user holds the semen collector 1 during use, the change in the sense of use increases due to the presence of the gap 25. Therefore, there is no problem even if the front end of the protrusion 31 does not reach the insertion portion 21 of the inner layer 2.

[0088] In the present invention, the outer layer 3 allows visual confirmation of the inner layer 2 it covers from the outside. Forming the outer layer 3 in this manner allows visual confirmation of the shape of the inner layer 2, which has the voids 25 formed on its outer surface, from the outside, resulting in a semen collector 1 with excellent design. The outer layer 3 may be any color, such as transparent (clear), translucent, or hazy, as long as the covered inner layer 2 is visually confirmed from the outside. However, transparent is preferred for ease of visual confirmation and to reduce the need for colorant addition and process steps.

[0089] The outer layer 3 has an insertion port S common to the inner layer 2 and is in a cylindrical shape that can be held by the hand of a user (not shown). In this embodiment, the shape of the outer layer 3 is the same as that of the inner layer 2. Figure 1 、 Figure 12 As shown in FIG. 1 , the gripper is symmetrically formed with a middle diameter portion 32, which is a gently mountain-shaped portion when viewed from above, at the approximate center in the longitudinal direction. The mountain-shaped large diameter portions 33 and 34, each having a diameter larger than the middle diameter portion 32, are symmetrically formed with a small diameter portion 36, which is a valley-shaped portion and has a diameter smaller than the middle diameter portion 32. The user can place their fingers on the small diameter portion 36, which forms the valley, and thus the gripper is easy for the user to hold.

[0090] The outer layer 3, which is gripped by the user and elastically deforms freely, is preferably composed primarily of an elastic polymer from the material constituting the inner layer 2. Specific examples of the elastic polymer constituting the outer layer 3 include preferably thermoplastic elastomers, with styrene-based thermoplastic elastomers being particularly preferred. Since these are the same elastic polymers described for the inner layer 2, their description is omitted. Furthermore, even when the inner layer 2 of the semen collection device 1 contains a water-absorbent resin, since the inner layer 2 and the outer layer 3 are constructed as at least a double layer and the insertion portion 21 is formed by the inner layer 2, there is no need to actively add a water-absorbent resin to the outer layer 3.

[0091] Thus, assuming that, as a semen collector 1, even if the constituent material of the inner layer 2 contains a water-absorbent resin in addition to the elastic polymer, if the water-absorbent resin is contained in only the inner layer 2 of the insertion portion 21 rather than the entire semen collector 1, the surface of the insertion portion 21 can be lubricated by bringing a liquid such as water into contact with the insertion portion 21 of the inner layer 2, and the effects of the addition of the water-absorbent resin, such as improving the feel of use, can be fully enjoyed. Furthermore, by limiting the amount of the water-absorbent resin added to only the inner layer 2, costs can be reduced.

[0092] Furthermore, since the inner layer 2, to which the water-absorbent resin is added, is substantially not exposed to the outside, the outer layer 3, preferably containing an elastic polymer as its main component, imparts appropriate softness to the portion of the semen collector 1 that is directly grasped. This allows the force exerted by grasping the outer layer 3 to be smoothly transmitted to the interior, and prevents slippage even when liquids such as water come into contact with the surface of the semen collector 1 (the outer layer 3) that is exposed to the outside. Here, the "main component" may constitute 50% by mass or more of the total constituent material (excluding the softening oil), preferably 80% by mass or more, and particularly preferably 85% by mass or more.

[0093] In addition, as the constituent materials of the inner layer 2 and the outer layer 3, in addition to the above-mentioned materials, within the scope that does not hinder the purpose and effect of the present invention, the following additives can be added as needed: pigments, colorants (for the outer layer 3, they are added within the scope that the inner layer 2 can be visually confirmed), stabilizers such as inorganic stabilizers, lubricants, impact resistance modifiers, processing aids, crystallization nucleating agents, reinforcing agents, flame retardants, cross-linking agents, cross-linking monomers, weather resistance modifiers, ultraviolet absorbers, antioxidants, hydrolysis resistance enhancers, mildewproof agents, antibacterial agents, light stabilizers, antistatic agents, oil components such as softening oils, anti-blocking agents, release agents, fragrances, fillers, coupling agents, cross-linking agents and other various additives.

[0094] Furthermore, the constituent materials of the inner layer 2 and outer layer 3 preferably contain a softening oil. The softening oil has the function of softening the thermoplastic elastomer (particularly a styrene-based thermoplastic elastomer) serving as the base material. By including the softening oil, the inner layer 2 and outer layer 3 (i.e., the semen collection device 1, and the same shall apply hereinafter) can be given appropriate flexibility. By adjusting the softening oil content, the softness (flexibility) of the inner layer 2 and outer layer 3 can be adjusted (increasing the content results in greater softness of the inner layer 2 and outer layer 3).

[0095] As the softening oil, any conventionally known softening oil capable of softening thermoplastic elastomers and the like can be used. For example, liquid paraffin, paraffin oil (hereinafter sometimes collectively referred to as "paraffin-based softeners"), naphthenic oils (naphthenic softeners), and aromatic oils (aromatic softeners), which are known hydrocarbon oils, can be used. Among them, paraffin-based softeners such as liquid paraffin and paraffin oil are preferably used because they have good affinity with thermoplastic elastomers such as styrene-based thermoplastic elastomers and are less likely to bleed out.

[0096] When using the softening oil, the content of the softening oil relative to the elastic polymer is not particularly limited and can be appropriately determined depending on the types and contents of the elastic polymer and the water-absorbent resin, in addition to the required softness. However, considering the degree of elastic deformation and softness of the elastic polymer as a molded article, the softening oil is preferably present in an amount of 300 to 1100 parts by mass, and particularly preferably in an amount of 500 to 900 parts by mass, relative to 100 parts by mass of the elastic polymer.

[0097] (II) Method for manufacturing semen collector 1:

[0098] The following describes an example method for manufacturing the semen collecting device 1. The semen collecting device 1, which has at least a two-layer structure consisting of an inner layer 2 and an outer layer 3, can be formed by, for example, heating the constituent materials to a molten state, cooling and solidifying the molten constituent materials (molten resin) to conform to the shape of the inner layer 2. Subsequently, the constituent materials surrounding the inner layer 2 are heated to a molten state, cooling and solidifying the molten constituent materials (molten resin), and forming the outer layer 3 to conform to the shape of the inner layer 2 so as to cover the inner layer 2. Furthermore, the resin materials (materials) constituting each layer (constituent materials) may also contain oily components such as softening oil.

[0099] For example, as an example of a method for manufacturing the semen collector 1, Figures 14 to 18 The molds 5, 6, 7 shown for manufacturing the semen collector 1 can be manufactured using the following manufacturing method, which includes:

[0100] A step of using a core mold 5 and an inner frame mold 6, which are molds that are combined to form the shape of the inner layer 2, and installing the core mold 5 inside the inner frame mold 6;

[0101] A process of injecting a molten material constituting the inner layer 2 into the inner frame mold 6 and cooling and solidifying the material;

[0102] A step of removing the core mold 5 having the shape of the inner layer 2 formed therearound from the inner frame mold 6;

[0103] The process of installing the core mold 5 having the shape of the inner layer 2 formed around the core mold 5 inside the outer frame mold 7 for forming the shape of the outer layer 3;

[0104] A process of injecting a molten material constituting the outer layer 3 into the outer frame mold 7 and cooling and solidifying the material;

[0105] a step of removing the core mold 5 having the shape of the inner layer 2 and the shape of the outer layer 3 formed therearound from the outer frame mold 7; and

[0106] The step of removing the molded product formed with the inner layer 2 and the outer layer 3 from the core mold 5. The above-mentioned manufacturing method can provide the semen collector 1 of this embodiment by a simple method.

[0107] Here, Figures 14 to 18 This is an explanatory diagram showing an example of molds 5, 6, 7, etc. for manufacturing the semen collector 1. First, Figure 14 This is a diagram showing one embodiment of the core mold 5. Figure 14 The core mold 5 shown is a mold as follows: it includes a portion (insertion portion, etc. forming portion 51) that forms the shape of the interior of the inner layer 2 (insertion portion 21, etc.), and a portion (gap forming portion 52) that forms the gap 25 formed on the outer surface 2a of the inner layer 2. In addition, the above-mentioned gap forming portion 52 is provided with a portion (protrusion forming portion 53) that is composed of a recessed portion and forms a protrusion 31 that enters into the gap 25 from the inner surface 3a of the outer layer 3, and an insertion port forming portion 54 that extends toward the bottom of the insertion portion, etc. forming portion 51.

[0108] (i) A step of using a core mold 5 and an inner frame mold 6, which are molds for forming the shape of the inner layer 2, and installing the core mold 5 inside the inner frame mold 6:

[0109] To manufacture the semen collector 1, first, Figure 15 As shown, Figure 14 The core mold 5 shown is installed inside the inner frame mold 6 which is one of the split molds. Figure 15 This is a diagram showing a state where the core mold 5 is attached to the inner frame mold 6 which is one of the split molds.

[0110] The inner frame mold 6 used to form the shape of the inner layer 2 is a mold capable of forming the outer diameter of the inner layer 2, and is shaped so that the core mold 5 can be installed (embedded) inside. After the core mold 5 is installed in one inner frame mold 6, the mold is closed by the inner frame mold on the other side (not shown) as a parting mold. In addition, the inner frame mold 6 on one side and the inner frame mold on the other side have the same shape and are installed and matched to form an integrated whole by clamping the core mold 5. The core mold 5 and the inner frame mold 6 can be combined to form the shape of the inner layer 2. The inner frame mold 6 cooperates with the shape of the inner layer 2 in a manner that can form the outer shape of the inner layer 2, and the interior is hollowed out.

[0111] (ii) A step of injecting a molten material constituting the inner layer 2 into the inner frame mold 6 and cooling and solidifying the material:

[0112] Thus, with the two inner frame molds 6 serving as the split molds closed, the molten resin material for forming the inner layer 2 is injected into the inner frame mold 6 from the side where the material injection port 61 is formed. After the material is cooled and solidified, the inner frame mold 6 is opened. The molding temperature can be appropriately determined depending on the resin material used, but is preferably 130 to 190°C, and particularly preferably 160 to 180°C (the molding temperature also applies to the outer layer 3 in (v) described later).

[0113] (iii) Step of removing the core mold 5 having the shape of the inner layer 2 formed therearound from the inner frame mold 6:

[0114] If the inner frame mold 6 is opened, Figure 16 The core mold 5 with the inner layer 2 formed therearound is shown exposed. Figure 16 This figure shows a state where the inner layer 2 is formed around the core mold 5. The resin material constituting the inner layer 2 covers the insert portion forming portion 51 in the molded state, and the insert portion 21 and the like are formed therein. A protrusion X is formed on the insert portion 21. Furthermore, an insertion port forming portion 54 forms an insertion port S, which is a hole connected to the insertion portion 21 and the like.

[0115] On the other hand, due to the presence of the gap forming portion 52 of the core mold 5, a gap 25 is formed on its outer surface that communicates with the insertion portion 21. The inner frame mold 6 is hollowed out in a manner that the inner portion of the core mold 5 is mounted to present the outer shape of the inner layer 2. Therefore, around the core mold 5, the resin material enters between the plurality of gap forming portions 52 and is solidified by cooling to form the gap 25. Figure 9 The shape of the inner layer 2 is shown in FIG.

[0116] (iv) A step of attaching the core mold 5 having the shape of the inner layer 2 formed therearound to the inside of the outer frame mold 7 for forming the shape of the outer layer 3:

[0117] then, Figure 16The core mold 5 with the inner layer 2 formed around it remains as shown (the inner layer 2 is not removed from the core mold 5). Figure 17 As shown, it is installed inside the outer frame mold 7 as one side of the split mold. The outer frame mold 7 is a mold that can form the outer diameter of the outer layer 3 and can be installed (embedded) inside. Figure 16 After the core mold 5 is mounted on one outer frame mold 7, the mold is closed by the outer frame mold of the other side (not shown) as a split mold.

[0118] The outer frame mold 7 on one side has the same shape as the outer frame mold on the other side, and is integrated by being mounted and fitted so as to sandwich the core mold 5 around which the inner layer 2 is formed. The core mold 5 around which the inner layer 2 is formed and the outer frame mold 7 are combined to form the shape of the outer layer 3. The outer frame mold 7 is hollowed out to match the shape of the outer layer 3 so as to form the outer shape of the outer layer 3.

[0119] (v) A step of injecting the molten material constituting the outer layer 3 into the interior of the outer frame mold 7 and cooling and solidifying the material:

[0120] In this way, when the two outer frame molds 7 serving as parting molds are closed, the molten resin material used to form the outer layer 3 is injected into the interior of the outer frame mold 7 from the side where the material injection port 71 is formed. After the above material is cooled and solidified, the outer frame mold 7 is opened.

[0121] (vi) A step of removing the core mold 5 having the shape of the inner layer 2 and the shape of the outer layer 3 formed therearound from the outer frame mold 7:

[0122] If the outer frame mold 7 is opened, Figure 18 As shown, a molded body (semen collector 1 ) is obtained in which an inner layer 2 is formed around a core mold 5 and an outer layer 3 is formed around the inner layer 2 so that the inner layer 2 can be visually confirmed. Figure 18 This is a diagram showing a state in which an inner layer 2 is formed around a core mold 5 and an outer layer 3 is formed around the inner layer 2 so that the inner layer 2 can be visually confirmed. Figure 18 In order to make the presence of the core mold 5 easier to understand, the inner layer 2 and the outer layer 3 (sperm collector 1) are cut in half perpendicularly to the longitudinal direction.

[0123] The resin material for forming the outer layer 3 covers the core mold 5 formed with the inner layer 2 in the mold-closed state, and enters the protrusion forming portion 53 formed by the recess formed in the gap forming portion 52, forming a protrusion 31 that enters the gap 25 of the inner layer 2. In addition, the outer frame mold 7 is hollowed out in a manner that presents the outer shape of the outer layer 3 with respect to the inner portion of the core mold 5 formed with the inner layer 2, so that the resin material enters the periphery of the core mold 5 formed with the inner layer 2, and is solidified by cooling to form a protrusion 31. Figure 1 、 Figure 12 The shape of the outer layer 3 is shown in FIG.

[0124] (vii) a step of removing the molded article having the inner layer 2 and the outer layer 3 formed thereon from the core mold 5:

[0125] Then, by removing the molded body (semen collector 1) formed with the inner layer 2 and the outer layer 3 from the core mold 5, the Figure 1 The semen collecting device 1 shown in FIG. In addition, the above (i) to (vii) are only examples, and there is no problem in manufacturing the semen collecting device 1 by using other methods.

[0126] (III) How to use the semen collector 1:

[0127] The following describes an example of how to use the semen collection device 1 according to this embodiment. This section also describes an embodiment in which the inner layer 2 is formed by containing an appropriate amount of a water-absorbing resin relative to an elastic polymer as its constituent material (e.g., the embodiments described in Examples 1 to 8 (preferably Examples 3 to 6) below). First, an appropriate amount of water is injected into the insertion portion 21 of the inner layer 2 through the insertion port S (same for both the inner layer 2 and the outer layer 3) of the semen collection device 1. By injecting water into the insertion portion 21 of the inner layer 2, the surface of the insertion portion 21 becomes gel-like, providing appropriate lubrication.

[0128] Furthermore, the inner layer 2 constituting the semen collector 1 has a void 25 formed on its outer surface, and a protrusion 31 extends from the inner surface of the outer layer 3 into this void 25. (The tip of) this protrusion 31 can also function similarly to the raised portion X. In this embodiment, the presence of the protrusion 31 extending into the void of the inner layer 2 and the presence of a certain amount of space formed by the void 25 around the protrusion 31 provide a tactile sensation other than that of the raised portion X, in addition to the tactile sensation created by the loosely spaced void 25. This results in a semen collector 1 with a varied tactile feel and a high level of usability.

[0129] Furthermore, when the user grips the semen collector 1, pressure is applied from the inner layer 2 via the outer layer 3, which covers the surrounding area, creating a sense of restraint. This allows the user to collect a desired amount of semen from the insertion port S after use, and to clean any remaining semen in the insertion portion 21, which serves as the interior space of the inner layer 2. Alternatively, the semen collection process can be performed by inserting a straw, etc., into the insertion port S and aspirating the semen.

[0130] While the aforementioned method of use describes a method in which the surface of the insertion portion 21 is lubricated by containing an appropriate amount of a water-absorbing resin relative to the elastic polymer as the constituent material of the inner layer 2 and bringing a liquid such as water into contact with the insertion portion 21 of the inner layer 2, the method of use of the semen collection device 1 is not limited to this. Specifically, the inner layer 2 may be lubricated by applying a lotion or the like to the inner layer 2 without containing a water-absorbing resin.

[0131] (IV) Effects of the present invention:

[0132] The semen collecting device 1 of the present invention described above has a double-layer structure, with an outer layer 3 formed so as to cover the periphery of the inner layer 2 on which the insertion portion 21 is formed. Since the outer layer 3 is configured to allow visual inspection of the inner layer 2 from the outside, the design of the inner layer 2 can be easily visually inspected from the outside. This, including the careful consideration of the shape of the inner layer 2, results in a semen collecting device 1 with excellent design. Furthermore, since the outer surface of the inner layer 2 includes voids 25, the voids 25 form a patterned design within the inner layer 2, which coordinates with the design of the inner layer 2's external shape. This allows the inner layer 2, which has a design appeal, to be visually inspected from the outer layer 3, further contributing to the semen collecting device 1 with excellent design. Furthermore, by forming a space defined by the voids 25 on the inner wall of the insertion portion 21, and by allowing the protrusions 31 formed on the inner surface of the outer layer 3 to enter the voids 25, subtle changes in tactile feel, such as those caused by the entry of other components into the voids, can enhance the feel of use.

[0133] (V) Variations of the embodiment:

[0134] In addition, the above-described mode represents one mode of the present invention, and the present invention is not limited to the above-described embodiment. Deformation and improvement within the scope of the structure of the present invention and the purpose and effect are also included in the content of the present invention. In addition, the specific structure and shape when implementing the present invention are within the scope of the purpose and effect of the present invention, and there is no problem even if other structures and shapes are adopted. The present invention is not limited to the above-described embodiments. Deformation and improvement within the scope of the purpose of the present invention are also included in the present invention.

[0135] For example, in the above embodiment, the outer surface 2a of the inner layer 2 (see Figure 10 etc.) is formed with a plurality of rhombus-shaped gaps 25, but the shape of the gaps 25 is arbitrary, for example, it can also be formed with Figure 19 、 Figure 20 The semen collector 1 has a gap 25 of the shape shown.

[0136] Figure 19 and Figure 20 1 is a perspective view showing another embodiment of the semen collecting device 1 of the present invention. Components and structures identical to those in the above embodiment are denoted by the same reference numerals, and detailed descriptions thereof are omitted or simplified.

[0137] Figure 19 The structure shown represents the following method: on the outer surface of the inner layer 2, relatively large rhombuses and relatively small circles (or ellipses) are continuously connected along the long side direction to form a gap 25, and a block-shaped protrusion 31 with a convex and concave front end (not shown) formed on the inner surface of the outer layer 3 enters the above-mentioned gap 25.

[0138] also, Figure 20 The following method is shown: on the outer surface of the inner layer 2, along the spiral slit which is the gap 25 formed with a predetermined width, a plurality of rod-shaped protrusions 31 and plate-shaped protrusions 31 formed on the inner surface of the outer layer 3 continuously enter the above-mentioned gap 25.

[0139] These Figure 19 and Figure 20 The semen collector 1 of the embodiment shown can also well achieve the effect described in (IV).

[0140] In the above embodiment, the example of forming the void 25 on the outer surface of the inner layer 2 and the protrusion 31 formed on the inner surface of the outer layer 3 into the void 25 is used for explanation. However, the formation of the protrusion 31 (and its entry into the void 25) is not essential. Even when there is nothing inside the void 25 of the inner layer 2, the difference in structure between the space formed by the void 25 and the surrounding raised portion X can still produce a change in the feel of use. Furthermore, even when the protrusion 31 is formed by the outer layer 3, by designing the gap between the void 25 and the protrusion 31, it is possible to further provide a change and uniqueness in the feel of use, resulting in a good feel of use.

[0141] In the embodiment described, the use Figure 1The shapes shown in the figures illustrate the shapes of the inner layer 2 and outer layer 3, both of which are elastically deformable. On the other hand, the shapes of the inner layer 2 and outer layer 3 are not limited thereto. The outer layer can have any shape, etc., as long as it has an insertion port S at at least one end in the longitudinal direction, is cylindrical and can be grasped by the user's hand, and covers the periphery of the inner layer 2. Similarly, the inner layer 2 can also have any shape, etc., as long as it has an insertion port S at at least one end face in the longitudinal direction and forms an insertion portion 21 that forms a space extending inward from the insertion port S. For example, it can be a cylindrical shape.

[0142] In addition, regarding the shape of the insertion portion of the inner layer 2, in the above embodiment, an example of the shape of the protrusion (protrusion X) formed on the inner wall of the insertion portion 21 of the inner layer 2 is as follows: Figure 5 、 Figure 9 Although the embodiment of forming the bellows shape in a predetermined arrangement is described above, the shape of the projection X may be other than the above-described shapes, and a conventionally known shape may be adopted.

[0143] In the embodiment, the inner layer 2 and the outer layer 3 constituting the semen collector 1 are described as follows: an insertion port S is provided on one end face in the long side direction, and the outer layer 3 is formed in a manner covering the inner layer 2 in which an insertion portion 21 is formed as a space extending inward from the above-mentioned insertion port S. However, for example, the structure may also be as follows: an insertion portion 21 passes through the inner layer 2, and two insertion ports S (not shown) are formed inside the outer layer 3, and the above-mentioned insertion ports S are connected via the insertion portion 21.

[0144] Furthermore, the specific structure and shape when implementing the present invention may be other structures within the scope that can achieve the purpose of the present invention.

[0145] [Example]

[0146] Hereinafter, the present invention will be described in further detail based on Examples and Reference Examples, but the present invention is not limited thereto.

[0147] [Examples 1 to 8, Reference Example 1]

[0148] According to the (i) to (vii) of the "(II) Method for manufacturing the semen collecting device 1", the following manufacturing method was used to manufacture the semen collecting device 1. Figures 1 to 6 Semen collectors of the shapes shown in the examples (Examples 1 to 8) were prepared. Furthermore, the ratio of the area of the voids (total area) to the area of the outer surface of the inner layer was approximately 44% of the total area of the outer surface of the inner layer. Furthermore, as Reference Example 1, a semen collector of the same shape as Example 1 was also prepared, but without the addition of powdered sodium polyacrylate (super absorbent resin) as a constituent material of the inner layer.

[0149] (Manufacturing method of semen collector)

[0150] (1) Manufacturing of the inner layer:

[0151] First, Figure 14 The core mold shown is as follows Figure 15 As shown in the figure, it is installed inside the inner frame mold on one side of the split mold and is closed by the inner frame mold on the other side. The resin material for forming the inner layer is injected in a molten state from the side where the material injection port is formed. After the above material is cooled and solidified, the split mold (inner frame mold) is opened and the inner layer is taken out. Figure 16 A core mold is shown with an inner layer formed therearound.

[0152] The resin material used to form the inner layer, as shown in Table 1, refers to a material having the following structure: the content of powdered sodium polyacrylate (water-absorbent resin) (described as "polyacrylic acid Na" in Table 1) is as shown in Table 1 relative to 100 parts by mass of a thermoplastic elastomer (hydrogenated styrene-based thermoplastic elastomer (SEBS)) as an elastic polymer (described as "elastomer" in Table 1. The same applies to the outer layer hereinafter). In Reference Example 1, no water-absorbent resin was added.

[0153] (2) Manufacturing of the outer layer:

[0154] The core mold with the inner layer formed around it obtained in (1) is kept as it is without removing the inner layer from the core mold, and Figure 17 As shown in FIG, the outer frame mold is installed inside the outer frame mold on one side of the parting mold. When the outer frame mold on the other side of the parting mold is closed, the resin material (thermoplastic elastomer (SEBS) as an elastic polymer) for forming the outer layer in a molten state is injected from the side where the material injection port is formed. After the above material is cooled and solidified, the outer frame mold is opened, as shown in FIG. Figure 18 As shown, a molded body having a transparent outer layer formed around the inner layer is obtained.

[0155] (3) Manufacturing of semen collector:

[0156] Then, the molded body having the colored inner layer and the transparent outer layer capable of visually confirming the inner layer is removed from the core mold to obtain Figure 1 The semen collector shown in Figures 1 and 2 is formed into a double-layer structure in which the outer layer covers the inner layer.

[0157] Furthermore, softening oil (liquid paraffin) was added to the materials constituting the inner and outer layers (800 parts by mass of softening oil per 100 parts by mass of the elastic polymer (thermoplastic elastomer)). The molding temperature was adjusted appropriately between 160°C and 180°C, and the molding was performed. Furthermore, 0.38 parts by mass of a colorant (white) was added to the material constituting the inner layer per 100 parts by mass of the elastic polymer (thermoplastic elastomer) to color the inner layer white. Table 1 shows the materials constituting the semen collector.

[0158] (Materials of the semen collector)

[0159] [Table 1]

[0160]

[0161] ※ Parts by mass of sodium polyacrylate relative to 100 parts by mass of elastomer.

[0162] 800 parts by mass of softening oil was added to each of the inner layer and the outer layer relative to 100 parts by mass of the elastomer.

[0163] 0.38 parts by mass of a colorant was added to the inner layer based on 100 parts by mass of the elastomer.

[0164] [Appearance and elasticity of the semen collector]

[0165] The outer layer of the semen collector is made transparent without adding a colorant. Figure 1 As shown in the figures, the semen collecting devices of Examples 1 to 8 (and Reference Example 1) can be visually verified from the outside to include diamond-shaped voids in the inner layer, confirming that they are semen collecting devices with excellent design. Furthermore, regarding the degree of elastic deformation, it was confirmed that the semen collecting devices of Examples 1 to 8 (and Reference Example 1) are elastically deformable, including both the inner and outer layers.

[0166] [Test Example 1]

[0167] (Lubrication Evaluation)

[0168] An appropriate amount of water was brought into contact with the inner portion of the inner layer including the insertion portion through the insertion openings of the semen collecting devices obtained in Examples 1 to 8 and Reference Example 1. Furthermore, the lubricity of the semen collecting devices was compared and evaluated using the following evaluation criteria.

[0169] The test was evaluated on a 5-level scale, with 5 to 2 being considered acceptable (5 being the best, and the order of 4 to 2 follows), and 1 being considered unacceptable.

[0170] (Evaluation Criteria)

[0171] Evaluation content

[0172] 5: The surface of the insertion part is optimally gelled, and the lubricity is very good, so no additional lotion is required.

[0173] 4: The surface of the insert is moderately gelled and has good lubricity, so no additional emulsion is required.

[0174] 3: The surface of the insert is gel-like and slightly too lubricating (no need for additional emulsion)

[0175] 2: The surface of the insert becomes gel-like and has slightly less lubricity (no additional emulsion is required)

[0176] 1: The surface of the insertion part is not gelled and has no lubricity at all (it is thought that a separate lotion is needed)

[0177] (result)

[0178] [Table 2]

[0179] evaluate Example 1 2 Example 2 4 Example 3 5 Example 4 5 Example 5 5 Example 6 5 Example 7 3 Example 8 3 Reference Example 1 1

[0180] As shown in Table 2, Examples 1 to 8 containing sodium polyacrylate as the constituent material of the inner layer of the semen collector all exhibited lubricity relative to the thermoplastic elastomer, and Examples 3 to 6 were particularly excellent.

[0181] The feel during use also reflects the lubrication results. Examples 1 to 8 have a good feel, while Examples 3 to 6 are the best. The order of good feel is Example 2 > Example 7, and Example 8 > Example 1. On the other hand, Reference Example 1, which lacks lubricity, has a poor feel when used directly, requiring additional emulsion.

[0182] Furthermore, as for the feel of use, because the inner layer has a void, the protrusions from the inner surface of the outer layer enter this void. Therefore, compared to a structure with only protrusions, the subtle differences in the protrusions and the spaces surrounding the protrusions formed on the inner layer's insert provide a different feel for the user. Furthermore, in Reference Example 1, the inner and outer layers are made of essentially the same materials, except for the addition of the colorant, so the perceived differences seen in Examples 1 to 8 are not present.

[0183] Industrial Applicability

[0184] The present invention is mainly used for medical purposes and has extremely high industrial applicability.

Claims

1. A semen collector, characterized in that: include: The inner layer is elastically deformable and formed into a cylindrical shape, with an insertion port arranged on at least one end surface in the longitudinal direction, an insertion portion forming a space extending inward from the insertion port, and a protrusion formed on the inner surface of the insertion portion; as well as The outer layer is elastically deformable, has an insertion port at the same position as the insertion port of the inner layer, is formed into a shape that can be grasped by hand, and is formed to cover the periphery of the inner layer. The inner layer is formed with a gap extending from the outer surface to the insertion portion. A protrusion is formed on at least one position of the inner surface of the outer layer corresponding to the gap of the inner layer, facing inward and entering the gap. The outer layer enables visual confirmation of the inner layer from the outside.

2. The semen collector according to claim 1, characterized in that The inner layer is colored and the outer layer is transparent.

3. The semen collector according to claim 1 or 2, characterized in that: The inner layer is made of an elastic polymer and a water-absorbent resin. The outer layer is formed of a material containing an elastic polymer as a main component.

4. The semen collector according to claim 3, characterized in that: The water-absorbing resin is contained in an amount of 1 to 100 parts by mass based on 100 parts by mass of the elastic polymer constituting the inner layer.

5. The semen collector according to claim 3, characterized in that: The water-absorbing resin constituting the inner layer is sodium polyacrylate, The elastic polymer constituting the inner layer and the outer layer is a thermoplastic elastomer.

6. The semen collector according to claim 4, characterized in that: The water-absorbing resin constituting the inner layer is sodium polyacrylate, The elastic polymer constituting the inner layer and the outer layer is a thermoplastic elastomer.

7. A method for manufacturing a semen collector, which is the method for manufacturing a semen collector according to any one of claims 1 to 6, characterized in that: include: A step of using a core mold and an inner frame mold, which are molds that are combined to form the shape of the inner layer, and installing the core mold inside the inner frame mold; A process of injecting a molten material constituting the inner layer into the inner frame mold and cooling and solidifying the material; a step of removing the core mold having the shape of the inner layer formed around it from the inner frame mold; The step of installing the core mold having the shape of the inner layer formed around the core mold inside an outer frame mold for forming the shape of the outer layer; A process of injecting a molten material constituting the outer layer into the interior of the outer frame mold and cooling and solidifying the material; a step of removing the core mold having the shape of the inner layer and the shape of the outer layer formed therearound from the outer frame mold; and a step of removing the molded article having the inner layer and the outer layer formed thereon from the core mold.

Images