An extra-cochlear reference electrode forming device

Abstract

The utility model relates to a kind of outer cochlea reference electrode forming devices, comprising: base (1), one surface is equipped with the opening matched with outer cochlea reference electrode mould, one end of the opening is connected with baffle (2);Connecting plate (13) is connected with the base (1), located the both sides of baffle (2);Limiting press block (7) is matched with baffle (2) and connecting plate (13);First mould locking bracket (10) is connected with connecting plate (13), first mould locking bracket (10) is connected with first mould locking screw (11), when forming, limiting press block (7) is fixed on baffle (2) by first mould locking screw (11). Compared with prior art, the utility model has the advantages of being convenient for forming, suitable for the outer cochlea reference electrode forming of large length and the like.

Description

Technical Field

[0001] This utility model relates to the field of cochlear implant technology, and in particular to a cochlear reference electrode forming device. Background Technology

[0002] Reference electrode molding refers to the process of fixing the reference electrode in place within the device using silicone after vulcanization. It is a crucial step in the manufacturing of cochlear implants, directly impacting the product's performance. Because the electrode wires are very delicate and easily damaged, stress and positioning must be carefully considered during the electrode manufacturing process.

[0003] In the electrode forming process, the electrode wire is typically fixed to a device for positioning, and then encapsulated with silicone. Currently, electrode wire production is not yet large-scale automated production due to market demand and the high cost of automated production lines; it is primarily manual. During manual operation, after vulcanization, the mold and product stick together during demolding, making removal difficult. Using a release agent would increase the number of steps and compromise product quality.

[0004] Chinese patent application publication number CN219501845U discloses an electrode array forming and positioning device that achieves effective demolding without the use of a release agent. However, the electrode positioning device in this device does not fully consider the stability of the fixation, resulting in relatively poor positioning accuracy and stability of the mold, and low operability.

[0005] In summary, the existing technical solutions have the following drawbacks:

[0006] (1) After vulcanization molding, the silicone bonded tightly to the molding cavity, which can easily cause the electrode wire to fall off.

[0007] (2) Using a release agent to solve the demolding problem will increase the number of additional processes and may cause biocompatibility risks to the electrode wire.

[0008] (3) Some molding dies have only one electrode wire positioning device, which has problems with positioning accuracy, stability and availability.

[0009] Therefore, in the existing technical solutions, the pass rate of reference electrode forming is still not high. Utility Model Content

[0010] The purpose of this invention is to overcome the defects of the prior art by providing a volute external reference electrode forming device, so as to solve or partially solve the problem of unstable mold fixing and inconvenience in fixing the volute external reference electrode in the existing forming device.

[0011] The objective of this utility model can be achieved through the following technical solutions:

[0012] This utility model provides a device for forming an external reference electrode, comprising:

[0013] The base has an opening on one side that matches the external reference electrode mold, and a baffle is connected to one end of the opening;

[0014] A connecting plate, connected to the base, is located on both sides of the baffle;

[0015] A limiting block, which matches the baffle and the connecting plate;

[0016] The first mold-locking bracket is connected to the connecting plate and is connected to the first mold-locking screw. During molding, the limiting pressure block is fixed to the baffle by the first mold-locking screw.

[0017] As a preferred technical solution, the axial direction inside the volute external reference electrode mold is provided with a space to accommodate silicone and the volute external reference electrode.

[0018] As a preferred technical solution, the top of the baffle is provided with a through groove, which matches the worm external reference electrode to be formed, and the through groove and the axis of the worm external reference electrode mold are on the same straight line.

[0019] As a preferred technical solution, the top of the baffle is provided with protrusions on both sides that match the limiting pressure block.

[0020] As a preferred technical solution, the external reference electrode mold includes a first mold block that is half a column, and a second mold block and a third mold block that are quarter columns. The first mold block, the second mold block and the third mold block are combined to form a column, and the corners of the column are smoothed.

[0021] As a preferred technical solution, the following are also included:

[0022] The locking blocks are located on opposite sides of the opening and connected to the base. The locking blocks abut against the smooth position at the corner of the column.

[0023] As a preferred technical solution, the following are also included:

[0024] The second mold-locking bracket is connected to the locking block, and the second mold-locking bracket is connected to the second mold-locking screw. During molding, the volute external reference electrode mold is fixed on the base by the second mold-locking screw.

[0025] As a preferred technical solution, the height of the card block matches the smooth position at the corner of the column.

[0026] As a preferred technical solution, the card block is connected to the base by screws.

[0027] As a preferred technical solution, the baffle and the connecting plate are integrally formed.

[0028] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0029] (1) Easy to form: By setting the first mold-locking bracket and the first mold-locking screw, the limiting pressure block is fixed on the baffle by the first mold-locking screw during the forming process, which can effectively fix the epitaxial section of the worm external reference electrode. Compared with the existing solutions that lack the design to accommodate the epitaxial section, the epitaxial section fixing design of this utility model helps to form a tapered head product during packaging.

[0030] (2) Applicable to the molding of long worm external reference electrodes: This utility model has a through groove on the top of the baffle, which matches the worm external reference electrode to be molded and is on the same straight line as the axis of the worm external reference electrode mold. In addition, protrusions matching the limiting pressure block are provided on both sides of the top of the baffle. During molding, the product passes through the central axis of the mold and the semi-circular groove. The limiting pressure block matches the protrusion and uses the first mold locking bracket and the first mold locking screw to fully fix the product at the semi-circular groove, so as to avoid the small vibration of the extended end affecting the molding inside the mold.

[0031] (3) Good mold stability: This utility model adopts a cylindrical volute external reference electrode mold, and the corner of the cylinder is smoothed. By setting the locking blocks on the opposite sides of the opening and making them abut against the smooth position at the corner of the cylinder, the mold is fixed and limited from the side. The mold is limited in the vertical direction by using the second mold locking bracket and the second mold locking screw to ensure the mold stability and thus ensure the molding quality.

[0032] (4) Easy demolding: The worm external reference electrode mold of this utility model includes a first mold block of half a column, and a second mold block and a third mold block of quarter column. The first mold block, the second mold block and the third mold block are combined to form a column. The segmented design makes it easy to remove the silicone from the molding cavity after vulcanization and demolding. Compared with the mold composed of four quarter columns, this utility model is simpler in the mold assembly process. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the volute external reference electrode forming device during the forming process in the embodiment;

[0034] Figure 2 This is a schematic diagram of the volute external reference electrode forming device after the first mold block is installed in the embodiment.

[0035] Figure 3 In order to be in Figure 2 A schematic diagram of the volute external reference electrode forming device after installing the second mold block on the foundation;

[0036] Figure 4 In order to be in Figure 3 A schematic diagram of the worm external reference electrode forming device after the installation of the limiting pressure block on the foundation;

[0037] Figure 5 In order to be in Figure 4 A schematic diagram of the volute external reference electrode forming device after installing the third mold block on the foundation.

[0038] Among them, 1. base, 2. baffle, 3. first mold block, 4. second mold block, 5. third mold block, 6. second mold locking screw, 7. limit pressure block, 8. clamping block, 9. second mold locking bracket, 10. first mold locking bracket, 11. first mold locking screw, 12. screw, 13. connecting plate. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0042] Regarding the problems existing in the aforementioned prior art, see [link to relevant documentation]. Figure 1 and Figure 2This embodiment provides a volute external reference electrode forming device, the main body of which is a base 1. An opening, in a "V" shape, is formed on the upper surface of the base to match the volute external reference electrode mold. Preferably, the corners of the opening are smoothed. A baffle 2 is provided at one end of the opening, and the baffle 2 is connected to the side of the base 1. The upper end of the baffle 2 has a structure for accommodating the extension section of the volute external reference electrode. Connecting plates 13 are symmetrically arranged on both sides of the baffle 2, and the connecting plates 13 are also connected to the side of the base 1. The connecting plates 13 on both sides and the baffle 2 in the middle form a U-shaped structure.

[0043] As a preferred technical solution, the open surface of the base 1 is covered with a material with a high coefficient of friction to reduce the possibility of mold slippage during the molding process.

[0044] In addition, the device includes a detachable limiting block 7 that matches the baffle 2 and the connecting plate 13. A first mold-locking bracket 10 is provided on the connecting plate 13 on both sides, which spans the limiting block 7. The first mold-locking bracket 10 is threaded with a first mold-locking screw 11. The axis of the first mold-locking screw 11 is perpendicular to the upper surface of the limiting block 7. During molding, the limiting block 7 is fixed to the baffle 2 by the first mold-locking screw 11, thereby fixing the extension section of the external reference electrode.

[0045] In this embodiment, the inner axial direction of the volute external reference electrode mold is provided with a space to accommodate silicone and the volute external reference electrode. During molding, the product will pass through the central axis of the mold and the structure at the upper end of the baffle 2 that accommodates the extension section of the volute external reference electrode.

[0046] As a preferred technical solution, see Figure 2 The structure at the upper end of the baffle 2 that accommodates the extension section of the volute reference electrode includes a through groove formed on the top of the baffle 2. The through groove matches the volute reference electrode to be formed, and the through groove is aligned with the axis of the volute reference electrode mold. Furthermore, protrusions matching the limiting blocks 7 are provided on both sides of the top of the baffle 2. During forming, the product passes through the central axis of the mold and the through groove, and the limiting blocks 7, by matching the protrusions, fix the product at the through groove.

[0047] As a preferred technical solution, see Figure 1 The external reference electrode mold includes a first mold block 3 (D1) that is half a cylinder, and a second mold block 4 (D2) and a third mold block 5 (D3) that are quarter-cylinders. The first mold block 3, the second mold block 4, and the third mold block 5 are combined to form a cylinder with a rectangular cross-section. A space for accommodating the silicone and the external reference electrode is provided along the axial direction, and the corners of the cylinder are chamfered and / or smoothed. In this embodiment, the corners are chamfered.

[0048] As a preferred technical solution, the device also includes a locking block 8 disposed on opposite sides of the opening and connected to the base 1. The opposite sides of the locking block 8 abut against the chamfered position at the corner of the column. The locking block 8 is threadedly connected to the base 1 by screws 12.

[0049] As a preferred technical solution, a second mold-locking bracket 9 is provided above the locking block 8, spanning the opening and connected to the locking block 8. The second mold-locking bracket 9 is connected with a second mold-locking screw 6. During molding, the external reference electrode mold is fixed to the base 1 by the second mold-locking screw 6. The height of the locking block 8 matches the smooth part at the corner of the column. Specifically, the height of the locking block 8 is just enough to make full contact with the smooth part at the corner of the column.

[0050] As a preferred technical solution, the first mold-locking bracket 10 is threadedly connected to the connecting plate 13 by screws 12, and the second mold-locking bracket 10 is threadedly connected to the locking block 8 by screws 12.

[0051] As a preferred technical solution, one end of the first mold-locking screw 11 and the second mold-locking screw 6 is provided with a handle for easy rotation.

[0052] In another embodiment, the baffle 2 and the connecting plates 13 on both sides are integrally formed as a whole structure.

[0053] In this embodiment, the base 1, the first mold block 3, the second mold block 4, the third mold block 5, the first mold locking screw 11, and the second mold locking screw 6 are made of stainless steel 316L, and the screw 12 is made of stainless steel 304.

[0054] See Figures 2-5 This is a process of using this device.

[0055] See Figure 2 Remove the limiting block 7, remove the first mold locking bracket 10 and the second mold locking bracket 9, and install the first mold block 3 into the opening on the base 1.

[0056] See Figure 3 The second mold block 4 is installed into the opening on the base 1 and combined with the first mold block 3. The locking block 8 and the base 1 together limit the mold. The silicone and the external reference electrode are placed on the central axis of the mold, and the extension section of the external reference electrode is placed in the through groove on the baffle 2.

[0057] See Figure 4 Install the limiting block 7, and use the protrusion at the upper end of the baffle 2 to initially fix the limiting block 7, while also initially fixing the extension section of the external reference electrode.

[0058] See Figure 5Install the third mold block 5 into the opening on the base 1, and combine it with the first mold block 3 and the second mold block 4 to complete the mold closing.

[0059] See last. Figure 1 Install the first mold clamping bracket 10 and the second mold clamping bracket 9 into their corresponding positions. By rotating the handles of the first mold clamping screw 11 and the second mold clamping screw 6, pressure is applied to the limiting block 7 and the external reference electrode mold, respectively, so that the mold is pressed and locked with balanced force, and the forming of the reference electrode is completed.

[0060] Then, the disassembly is performed in reverse order to remove the shaped external reference electrode.

[0061] In summary, this invention, through the dual positioning of the limiting pressure block 7 and the external reference electrode mold during silicone encapsulation, can better control the mold position, reduce errors, and ensure the accuracy of product size and shape. It also offers advantages such as simple mold locking and demolding, convenient operation, and easy handling. This device has a simple and compact structure, is easy to manufacture, and has low cost. The newly added limiting pressure block 7 positioning mechanism helps improve the mold's precision, stability, lifespan, and production efficiency, while also improving product quality. This device is small in size and lightweight; after locking, it can be transported and dried along with the mold; it is convenient to transport, simple to operate, and the mold locking force is balanced, resulting in minimal mold wear.

[0062] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A device for forming an external reference electrode, characterized in that, include: The base (1) has an opening on one side that matches the external reference electrode mold, and a baffle (2) is connected to one end of the opening; A connecting plate (13) is connected to the base (1) and located on both sides of the baffle (2); The limiting block (7) matches the baffle (2) and the connecting plate (13); The first mold-locking bracket (10) is connected to the connecting plate (13). The first mold-locking bracket (10) is connected to the first mold-locking screw (11). During molding, the limiting pressure block (7) is fixed on the baffle (2) by the first mold-locking screw (11).

2. The worm gear external reference electrode forming device according to claim 1, characterized in that, The mold for the external reference electrode of the volute has a space in the axial direction inside to accommodate the silicone and the external reference electrode of the volute.

3. The worm gear external reference electrode forming device according to claim 1, characterized in that, The top of the baffle (2) is provided with a through groove, which matches the worm external reference electrode to be formed, and the through groove and the axis of the worm external reference electrode mold are on the same straight line.

4. The worm gear external reference electrode forming device according to claim 1, characterized in that, The top of the baffle (2) is provided with protrusions on both sides that match the limiting pressure block (7).

5. The worm gear external reference electrode forming device according to claim 1, characterized in that, The aforementioned external reference electrode mold includes a first mold block (3) that is half a column, and a second mold block (4) and a third mold block (5) that are quarter columns. The first mold block (3), the second mold block (4) and the third mold block (5) are combined to form a column, and the corners of the column are smoothed.

6. The worm gear external reference electrode forming apparatus according to claim 5, characterized in that, Also includes: The locking block (8) is located on opposite sides of the opening and is connected to the base (1). The locking block (8) abuts against the smooth position at the corner of the column.

7. The worm gear external reference electrode forming apparatus according to claim 6, characterized in that, Also includes: The second mold-locking bracket (9) is connected to the locking block (8). The second mold-locking bracket (9) is connected to the second mold-locking screw (6). During molding, the worm external reference electrode mold is fixed on the base (1) by the second mold-locking screw (6).

8. The worm gear external reference electrode forming apparatus according to claim 6, characterized in that, The height of the card block (8) matches the smooth position at the corner of the column.

9. The worm gear external reference electrode forming apparatus according to claim 6, characterized in that, The card block (8) is connected to the base (1) by screws (12).

10. The worm gear external reference electrode forming apparatus according to claim 1, characterized in that, The baffle (2) and the connecting plate (13) are integrally formed.

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