A multi-source fusion vaginal electrode preparation device and preparation method

Abstract

The present invention provides a multi-source fusion vaginal electrode preparation device and preparation method. The preparation device includes a lower mold frame, an upper mold frame, and a movable mold core assembly that are connected to each other. The movable mold core assembly includes an air pipe and a core. The core is provided with a mounting surface for attaching an electrode sheet, and the mounting surface is provided with an air suction hole. The core has a hollow inner cavity that is connected to the air pipe and the air suction hole. The mounting surface and the air suction adsorption method can effectively position the electrode sheet on the spherical airbag silicone body, facilitate installation, and control the fluidity of the silicone rubber. At the same time, negative pressure injection molding can ensure the consistency of the silicone rubber filling on the surface of the silicone rubber product, avoiding the formation of microscopic pores on the product surface. At the same time, it can also prevent defects such as scratches on the product appearance, thereby improving the production yield.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a deformable balloon conductive electrode product. Background Art

[0002] In the prior art, vaginal electrode products are used as special equipment for training female pelvic floor muscles. For example, a urinary incontinence device disclosed in patent application No. CN103096973A includes an inflatable balloon (air bag) and an electrode sheet attached to the balloon. The balloon can be inflated and deflated to achieve an expansion effect. The electrode sheet is used to generate electrical stimulation to the muscles. The combined balloon and electrode sheet have a stimulating training effect on the pelvic floor muscles. In this product structure, since the balloon is made of soft materials, such as silicone and other materials commonly used in the prior art, and the electrode sheet is generally a hard stainless steel sheet, the junction between the outer edge of the electrode sheet and the silicone material is required to be a stable connection and the connection will not crack into a seam. In the prior art, a preparation method for adapting metal devices to silicone materials is a method of injection molding of silicone materials. For example, patent No. CN212072679U discloses a positioning mechanism for metal insert injection molding, which is a preparation mechanism for silicone material injection molding wrapped with metal. However, these existing technologies fail to address the effective connection between the spherical silicone rubber and the conductive electrode sheet in deformable products. Normally, displacement occurs between the mold's sealant and the metal electrode sheet, damaging the metal electrode sheet and resulting in poor quality and low production efficiency. Furthermore, because injection pressure is dependent on the tightness of the threads between the upper and lower molds, precise control of injection pressure is impossible, making it difficult to guarantee quality. Summary of the Invention

[0003] Purpose of the invention: The present invention aims to provide a multi-source fusion vaginal electrode preparation device, the purpose of which is to solve the problem of difficult positioning and installation of the conductive electrode on the spherical airbag-like silicone body when realizing injection molding between the spherical airbag-like silicone body and the conductive electrode sheet (such as stainless steel).

[0004] Technical solution: To solve the above problems, the present invention provides the following technical solutions:

[0005] A multi-source fusion vaginal electrode preparation device includes a lower mold frame and an upper mold frame that are docked with each other, and also includes a movable core group clamped between the lower mold frame and the upper mold frame. The movable core group includes a positioning body, an air tube extending from one end of the positioning body, and a core extending from one side of the positioning body. The appearance of the core is the appearance of a silicone body that needs to be injection molded, and the core is provided with a mounting surface for attaching an electrode sheet. The periphery of the mounting surface forms an arc to fit the inner surface of the electrode sheet. The mounting surface is provided with an air suction hole or an air suction channel, and a hollow inner cavity is provided inside the core. The inner cavity is connected to the air tube, and the air suction hole is also connected to the inner cavity; a cavity is formed between the upper mold frame and the lower mold frame, and the gap formed between the core and the cavity is used for injection molding of silicone.

[0006] Furthermore, the front end of the mounting surface is provided with an opening communicating with the interior of the core, and the opening is also provided with a sealing plug for fixing the electrode connecting wire.

[0007] Furthermore, the upper mold frame is provided with an upper pressing and sealing device protruding downward, which is used to abut against the contact position between the electrode sheet and the front edge of the mounting surface and press the electrode sheet facing the upper mold frame downward into a depression; the lower mold frame is provided with a lower pressing and sealing device protruding upward, which is used to abut against the contact position between the electrode sheet and the front edge of the mounting surface and press the electrode sheet upward into a depression.

[0008] Furthermore, the core is provided with hollow areas for filling with silica gel at the connection positions of the electrode sheet and the sealing plug and the connection positions of the electrode sheet and the electrode connecting wire.

[0009] Furthermore, after the mounting surface is covered with the conductive electrode, a plurality of bending structures are provided on the portion of the conductive electrode sheet extending outward from the mounting surface.

[0010] Furthermore, a positioning column is provided in the lower mold frame, and a positioning hole is provided in the movable mold core group to cooperate with the positioning column. The movable mold core group is positioned to the lower mold frame through the cooperation and assembly of the positioning column and the positioning hole.

[0011] Furthermore, a waste discharge channel for the glue inlet of the injection molding device is provided between the lower mold frame and the upper mold frame.

[0012] Beneficial effects: The present invention provides a preparation device that can realize injection molding between spherical airbag-like silicone bodies and conductive electrode sheets. In the preparation device, the electrode sheet is well positioned on the spherical airbag-like silicone body through the setting of the mounting surface and the vacuum adsorption negative pressure method, the installation is convenient, and the fluidity of the silicone rubber is well controlled. Injection molding under negative pressure can ensure the consistency of the surface filling of silicone rubber products and avoid the generation of microscopic pores on the surface of the product. The upper and lower pressing and sealing devices provided at the same time can avoid defects such as scratches on the appearance of the product and improve the production yield. In addition, the electrode sheet must be connected to the connecting wire and then placed in the mold for integral molding. The sealing plug provided by the device of the present invention solves the positioning and sealing problem of soft materials such as electrode connecting wires in silicone injection molds. The present invention is also provided with multiple bending structures of the conductive electrode to ensure the size of the bonding area with the silicone rubber, and to ensure the stability and reliability of the subsequent product during the inflation and deflating and disinfection processes in actual applications.

[0013] The present invention also provides a technical solution for a preparation method using the above-mentioned multi-source fusion vaginal electrode preparation device: the electrode sheet is attached to the mounting surface, and the movable core group is clamped and fixed between the lower mold frame and the upper mold frame, and the air is sucked out through an external air pump through the trachea so that the electrode sheet is adsorbed on the mounting surface and a negative pressure is formed in the cavity, and then silicone is injected between the core and the cavity.

[0014] The front end of the mounting surface is provided with an opening communicating with the interior of the core. The opening is also provided with a sealing plug for fixing the electrode connecting wire. The electrode connecting wire passes through the sealing plug and extends from the opening into the inner cavity of the core. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the multi-source fusion vaginal electrode preparation device of the present invention.

[0016] Figure 2 This is a top view of the movable mold core group and the lower mold frame after assembly in the present invention.

[0017] Figure 3 It is a three-dimensional exploded view of the movable core assembly and two electrode sheets in the present invention.

[0018] Figure 4 Schematic diagram of the internal structure of the movable core group in the present invention.

[0019] Figure 5 This is a cross-sectional view of the movable mold core assembly in the present invention when it is clamped between the lower mold frame and the upper mold frame.

[0020] Figure 6 This is a partial enlarged view of the position of the upper pressing and sealing device.

[0021] Figure 7 This is a schematic diagram of the cross-section of the electrode sheet and silicone body after injection molding.

[0022] Figure 8 This is a partial enlarged view of the waste discharge channel at the glue inlet.

[0023] Figure 9 This is a top view of the upper mold frame. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings.

[0025] Example 1

[0026] See also Figures 1 to 4 As shown, this embodiment provides a multi-source fusion vaginal electrode preparation device, including a lower mold frame 100 and an upper mold frame 200 that are docked with each other, and also includes a movable core group 300 sandwiched between the lower mold frame 100 and the upper mold frame 200. The movable core group 300 includes a positioning body 310, an air tube 320 extending from one end of the positioning body 310, and a core 330 extending from one side of the positioning body 310. A positioning column 101 is provided in the lower mold frame 100, and the positioning body 310 is provided with a positioning hole 311 that cooperates with the positioning column 101. The movable core group 300 is positioned to the lower mold frame 100 by the matching assembly of the positioning column 101 and the positioning hole 311. The outer shape of the core 330 is the inner surface shape of the silicone body to be injection molded, and the core 330 is provided with a mounting surface 331 for attaching the electrode sheet. The outer periphery of the mounting surface 331 is curved to mate with the inner surface of the electrode sheet 400. The mounting surface 331 is provided with an air intake hole 332, and the core 330 has a hollow inner cavity 333. The inner cavity 333 is connected to the air pipe 320, and the air intake hole 332 is also connected to the inner cavity 333. Specifically, the mounting surfaces 331 of the core 330 are symmetrically arranged on the side facing the lower mold frame 100 and the other side facing the upper mold frame 200, and each mounting surface 331 is provided with two air intake holes 332. Each mounting surface 331 is mounted on an electrode sheet 400.

[0027] A cavity is formed between the upper mold frame 200 and the lower mold frame 100. The gap formed between the core 330 and the cavity is used for injection molding of silicone. Figure 7 As shown, a waste discharge channel 340 for the injection molding device glue inlet is provided between the lower mold frame and the upper mold frame.

[0028] See also Figure 3 and Figure 4 As shown, the front end of the mounting surface 331 is provided with an opening 334 communicating with the interior of the core 330 . Since the electrode connecting wire 410 cannot be sealed in the device, a sealing plug 335 is further provided in the opening 334 for fixing the electrode connecting wire 410 .

[0029] See also Figure 5 and Figure 6The upper mold frame 200 is shown as being provided with an upper pressing and sealing device 201 that protrudes downward. The upper pressing and sealing device 201 is used to abut against the contact position between the electrode sheet 400 and the front edge of the mounting surface 331 and to press the electrode sheet 400 facing the upper mold frame 200 downward into a depression. The lower mold frame 100 is provided with a lower pressing and sealing device that protrudes upward, which is symmetrical in structure with the upper pressing and sealing device. The lower pressing and sealing device is used to abut against the contact position between the electrode sheet and the front edge of the mounting surface and to press the electrode sheet upward into a depression. The upper pressing and sealing devices can prevent the good fluidity of silicone from leaking onto the product's exterior surface; at the same time, they can prevent the stainless steel electrode sheet from having problems matching the mounting surface due to inconsistent stamping curvature during the stamping process. At the same time, the core 330 is provided with hollow areas for filling with silicone at the connection positions of the electrode sheet 400 and the sealing plug 335, and the connection positions of the electrode sheet 400 and the electrode connecting line 410, so as to enhance the strength of this connection and ensure reliable stability during inflation and deflation in subsequent product applications.

[0030] like Figure 7 As shown, after the mounting surface is covered with the electrode sheet, the portion of the electrode sheet 400 extending outward from the mounting surface is provided with multiple bending structures 401. This ensures the size of the bonding area between the electrode sheet 400 and the silicone rubber 500, ensuring stability and reliability during the subsequent inflation, deflation, and disinfection processes in actual product applications.

[0031] Using the above-mentioned preparation method of the multi-source fusion vaginal electrode preparation device, the electrode sheet is attached to the installation surface, and the movable core group is clamped between the lower mold frame and the upper mold frame and fixed. After the air is sucked out through the air pipe connected to the air pump (not shown) so that the electrode sheet is adsorbed on the installation surface, silicone rubber (such as 202) is injected between the core and the cavity through the injection port 202 in the middle position of the upper mold frame 200. Figure 9 As shown), the bonding between the silicone body and the electrode sheet is completed.

Claims

1. A multi-source fusion vaginal electrode preparation device, comprising a lower mold frame and an upper mold frame connected to each other, characterized in that: The mold base further includes a movable core group sandwiched between the lower mold frame and the upper mold frame, the movable core group including a positioning body, an air pipe extending from one end of the positioning body, and a core extending from one side of the positioning body, the outer shape of the core being the outer shape of the silicone body to be injection molded, and a mounting surface for attaching the electrode sheet is provided on the core, the outer periphery of the mounting surface is formed into an arc to fit with the inner surface of the electrode sheet, an air suction hole or an air suction channel is provided on the mounting surface, a hollow inner cavity is provided inside the core, the inner cavity is connected to the air pipe, and the air suction hole is also connected to the inner cavity; a cavity is formed between the upper mold frame and the lower mold frame, and a gap formed between the core and the cavity is used for injection molding of silicone; The upper mold frame is provided with an upper pressing and sealing device protruding downward, and the upper pressing and sealing device is used to abut against the contact position between the electrode sheet and the front edge of the mounting surface and press the electrode sheet facing the upper mold frame downward to form a depression; The lower mold frame is provided with a lower pressing and sealing device protruding upward, and the lower pressing and sealing device is used to abut against the contact position between the electrode sheet and the front edge of the mounting surface and press the electrode sheet upward to form a recess.

2. The multi-source fusion vaginal electrode preparation device according to claim 1, characterized in that: The front end of the mounting surface is provided with an opening communicating with the interior of the core, and the opening is also provided with a sealing plug for fixing the electrode connecting wire.

3. The multi-source fusion vaginal electrode preparation device according to claim 1, characterized in that: The core is provided with hollow areas for filling with silica gel at the connection positions of the electrode sheet and the sealing plug and the connection positions of the electrode sheet and the electrode connecting wire.

4. The multi-source fusion vaginal electrode preparation device according to claim 3, characterized in that: After the mounting surface is covered with the conductive electrode, a portion of the conductive electrode sheet extending outward from the mounting surface is provided with a plurality of bending structures.

5. The multi-source fusion vaginal electrode preparation device according to claim 4, characterized in that: A positioning column is provided in the lower mold frame, and a positioning hole is provided in the movable mold core group to cooperate with the positioning column. The movable mold core group is positioned on the lower mold frame through the cooperation and assembly of the positioning column and the positioning hole.

6. The multi-source fusion vaginal electrode preparation device according to claim 5, characterized in that: A waste discharge channel for the glue inlet of the injection molding device is provided between the lower mold frame and the upper mold frame.

7. A method for preparing a multi-source fusion vaginal electrode using the device according to any one of claims 1 to 6, characterized in that: The electrode sheet is attached to the mounting surface, and the movable core assembly is clamped between the lower mold frame and the upper mold frame and fixed. After the air is sucked out through the air pipe connected to the external air pump so that the electrode sheet is adsorbed on the mounting surface and negative pressure is formed in the cavity, silicone is injected between the core and the cavity.

8. The preparation method according to claim 7, characterized in that The front end of the mounting surface is provided with an opening communicating with the interior of the core. The opening is also provided with a sealing plug for fixing the electrode connecting wire. The electrode connecting wire passes through the sealing plug and extends from the opening into the inner cavity of the core.

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