A medical-grade liquid-resistant capacitive touchscreen assembly

Abstract

This invention discloses a medical-grade liquid-resistant capacitive touchscreen assembly, relating to the field of capacitive touchscreen assembly technology. It includes: a body, on one side of which a capacitive touchscreen assembly is disposed; and on the inner side of the body, a rectangular groove matching the shape of one side of the capacitive touchscreen assembly, with the capacitive touchscreen assembly mounted inside the rectangular groove; and a positioning device, mounted inside the capacitive touchscreen assembly, used for positioning and calibrating the capacitive touchscreen assembly during installation. This invention, by setting up a positioning device, allows a second airbag to expand uniformly with continuous gas expansion, forming a flexible support for the capacitive touchscreen assembly and precisely calibrating it to the center of the rectangular groove, ensuring installation accuracy. This design overcomes the stringent requirements of traditional hard-limiting methods, correcting initial placement offsets, improving assembly yield, and the flexible, enveloping expansion of the airbag further ensures positioning accuracy.

Description

Technical Field

[0001] This invention relates to the field of capacitive touchscreen assembly technology, and more particularly to a medical capacitive touchscreen assembly that is resistant to liquid intrusion. Background Technology

[0002] A capacitive touch screen assembly is an integrated functional module that combines a capacitive touch sensing layer, a display panel, an adhesive layer, a frame / back adhesive, and matching connectors. It is the core component for electronic devices to achieve touch operation and screen display. It can be directly assembled into the device body to realize human-computer interaction functions and is widely used in consumer electronics, industrial control, medical equipment and other fields.

[0003] Currently, the installation of capacitive touch screen assemblies used in medical devices mostly adopts the traditional hard-limiting fixture positioning method. During operation, the operator first places the capacitive touch screen assembly into the rectangular groove of the device, and then applies rigid constraints through the mechanical structure of the fixture—for example, tightening the bolts on both sides of the fixture to push the metal stop block against the edge of the screen, or inserting a positioning pin through the positioning hole between the fixture and the screen / device, forcing the screen to be completely in contact with the preset reference surface of the fixture, thereby completing the position fixation. After the limiting is completed, the screen is fixed to the device by screw fastening, glue injection, etc. After fixation, the positioning fixture is removed. This installation method relies on rigid contact in the positioning stage, which not only easily damages the surface layer of the screen and the ITO conductive layer, but is also subject to the strict limitation of "one-time placement, deviation means scrap", resulting in a low yield rate of manual assembly. To address these issues, we have designed a medical-grade liquid-proof capacitive touch screen assembly. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above-mentioned medical-grade liquid-proof capacitive touch screen assembly, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a medical-grade liquid-resistant capacitive touchscreen assembly, which solves the problem that the positioning stage relies on rigid contact, which not only easily damages the screen surface and ITO conductive layer, but is also subject to the strict limitation of "one-time placement, deviation means scrap", resulting in a low yield rate of manual assembly.

[0007] To solve the above technical problems, the present invention provides the following technical solution: a medical anti-liquid intrusion capacitive touch screen assembly, the device comprising: a body, wherein a capacitive touch screen assembly is disposed on one side of the body, and a rectangular groove matching the shape of one side of the capacitive touch screen assembly is disposed on the inner side of the body, and the capacitive touch screen assembly is installed on the inner side of the rectangular groove; a positioning device, wherein the positioning device is installed on the inner side of the capacitive touch screen assembly for positioning and calibration when installing the capacitive touch screen assembly, the positioning device comprising a first airbag fixedly connected to the inner side of the capacitive touch screen assembly, the outer wall of the first airbag being conical, and the interior of the first airbag (3) being filled with liquid sealant; and a venting device, wherein the venting device is disposed on the inner side of the capacitive touch screen assembly for removing the capacitive touch screen assembly and venting the inner side of the capacitive touch screen assembly.

[0008] As a preferred embodiment of the medical anti-liquid intrusion capacitive touch screen assembly of the present invention, wherein: the inner side of the rectangular groove inside the body is provided with a cone shape that matches the size of the outer side of the first airbag.

[0009] As a preferred embodiment of the medical anti-liquid intrusion capacitive touch screen assembly of the present invention, the positioning device further includes a second airbag fixedly connected to the inner side of the first airbag, two soft membranes fixedly connected to the inner side of the second airbag, and the two soft membranes are arranged vertically, and a puncture component is provided on the inner side of the first airbag.

[0010] In a preferred embodiment of the medical anti-liquid intrusion capacitive touch screen assembly of the present invention, the puncture component includes two connecting cylinders fixedly connected to the inner side of the first airbag, and a puncture needle is slidably connected to the inner side of each of the two connecting cylinders.

[0011] In a preferred embodiment of the medical anti-liquid intrusion capacitive touchscreen assembly of the present invention, one end of the puncture needle is configured as a cone shape.

[0012] As a preferred embodiment of the medical anti-liquid intrusion capacitive touch screen assembly of the present invention, wherein: the puncture component further includes two limiting grooves formed inside the connecting cylinder, a piston block is slidably connected to the inner side of each of the two limiting grooves, and a piston plate is fixedly connected to the inner side of each of the two piston blocks, and the piston plate is fixedly connected to the puncture needle, and a protective component is provided on the outer wall of the first airbag.

[0013] As a preferred embodiment of the medical anti-liquid intrusion capacitive touch screen assembly of the present invention, wherein: the outer wall of the first airbag is provided with two positioning grooves, and the positions of the two positioning grooves are respectively located at the conical end of one of the puncture needles.

[0014] As a preferred embodiment of the medical anti-liquid intrusion capacitive touch screen assembly of the present invention, the protective component includes four sets of metal plates fixedly connected to the outer wall of the first airbag, each set of metal plates having two pieces, and a limiting sticker fixedly connected to the top of every two metal plates.

[0015] As a preferred embodiment of the medical anti-liquid intrusion capacitive touch screen assembly of the present invention, wherein: the venting device includes a hose fixedly connected to the air outlet of the second airbag, and the other end of the hose is installed at the air outlet of the first airbag; a connecting groove is provided on the inner side of the capacitive touch screen assembly, and one end of the connecting groove communicates with the hose through the air outlet of the first airbag.

[0016] As a preferred embodiment of the medical anti-liquid intrusion capacitive touch screen assembly of the present invention, the venting device further includes a screw threadedly connected to the other end of the communicating groove.

[0017] The beneficial effects of this invention are:

[0018] 1. By setting a positioning device, the second airbag expands evenly with the continuous expansion of the gas, forming a flexible support for the capacitive touch screen assembly and accurately calibrating it to the center of the rectangular groove, ensuring installation accuracy. This design breaks through the stringent requirements of traditional hard limit, can correct the initial placement offset, improve the assembly yield, and the flexible encircling expansion method of the airbag further ensures the positioning accuracy.

[0019] 2. By setting up protective components, the four sets of metal plates, which are initially in a bent state, form a rigid limit on the outer wall of the first airbag, resisting accidental contact with the outside to prevent damage to the soft membrane and premature reaction of the agent. At the same time, the four limiting stickers are attached to the metal plates to provide local physical protection. The two constitute a double protection structure, which avoids accidental breakage of the soft membrane from the root and prevents the agent from reacting unexpectedly in advance.

[0020] 3. By setting up a puncture component; the second airbag continuously expands and pushes the puncture needle to puncture the first airbag, and the internal glue overflows to the edge gap between the assembly and the body, achieving firm fixation and forming an initial sealing layer; this design, through the timing logic of "first positioning, then membrane rupture and glue extrusion", fundamentally avoids glue overflow before positioning is completed, ensuring the accuracy of fixation and sealing.

[0021] 4. By coordinating components such as the first airbag, if the sealant in the assembly area ages or cracks slightly, resulting in poor sealing, the higher air pressure inside the first airbag will drive the residual adhesive to automatically fill the gaps and block the path of liquid intrusion. This design breaks through the limitations of traditional one-time sealing, achieving integrated positioning, fixing, and sealing during the assembly stage. It also has a long-lasting sealing capability with passive automatic leak repair during the usage stage. This not only ensures installation accuracy and initial sealing effect but also solves the pain point of sealing failure in the later stages of traditional fixing. It significantly improves the stability of the assembly structure and the reliability of the capacitive screen against liquid intrusion, effectively avoiding equipment failure caused by liquid intrusion in medical scenarios.

[0022] 5. By incorporating a venting device, when repairing and disassembling the capacitive touchscreen assembly, workers can simply unscrew the screws with a screwdriver. The gas in the second airbag then quickly escapes through the connecting groove. After the first airbag deflates, it resets, and the locking mechanism disengages, allowing for smooth disassembly. This design employs a simple method of screw unscrewing combined with airbag deflation, requiring no special tooling and enabling non-destructive disassembly of the assembly, thus lowering the repair threshold and reducing labor time. Simultaneously, the rapid gas release immediately disables the locking mechanism, eliminating the need for scraping off adhesive layers and cleaning assembly surfaces required for traditional glue-fixed disassembly, effectively shortening equipment downtime for maintenance. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is a cross-sectional view of the positioning device of the present invention;

[0027] Figure 4 This is a partial structural diagram of the positioning device of the present invention;

[0028] Figure 5 This is a schematic diagram of the puncture component structure of the present invention;

[0029] Figure 6 This is a partial structural diagram of the puncture component of the present invention;

[0030] Figure 7 This is a schematic diagram of the soft membrane structure of the present invention;

[0031] Figure 8This is a diagram showing the initial state of the first airbag of the present invention.

[0032] In the diagram: 1. Body; 2. Capacitive touchscreen assembly; 3. First airbag; 4. Metal sheet; 5. Second airbag; 6. Flexible hose; 7. Connecting groove; 8. Positioning groove; 9. Connecting cylinder; 10. Piston plate; 11. Piercing needle; 12. Piston block; 13. Limiting groove; 14. Soft film; 15. Limiting sticker; 16. Screw. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0037] Please see Figures 1 to 8This embodiment provides a medical-grade liquid-resistant capacitive touchscreen assembly, comprising: a body 1, a capacitive touchscreen assembly 2 disposed on one side of the body 1, a rectangular groove on the inner side of the body 1 that matches the shape of one side of the capacitive touchscreen assembly 2, and the capacitive touchscreen assembly 2 being installed inside the rectangular groove; a positioning device, installed inside the capacitive touchscreen assembly 2, used for positioning and calibrating the capacitive touchscreen assembly 2 during installation, the positioning device comprising a first airbag 3 fixedly connected to the inner side of the capacitive touchscreen assembly 2, the outer wall of the first airbag 3 being conical, and the interior of the first airbag 3 being filled with liquid sealant; the inner side of the rectangular groove on the inner side of the body 1 being provided with a conical shape matching the size of the outer side of the first airbag 3; the positioning device further comprising a second airbag 5 fixedly connected to the inner side of the first airbag 3, two soft membranes 14 fixedly connected to the inner side of the second airbag 5, the two soft membranes 14 being arranged vertically, and a puncture component disposed inside the first airbag 3;

[0038] Two soft membranes 14 divide the interior of the second airbag 5 into two independent spaces, which are filled with sodium bicarbonate powder and citric acid powder respectively. When the two agents are mixed, a chemical reaction occurs and carbon dioxide gas is generated, which in turn pushes the second airbag 5 to expand slowly, while the inside of the first airbag 3 is filled with glue.

[0039] When installing the capacitive touchscreen assembly 2, the staff first removes the four limiting stickers 15, then presses the two marked pressing points on the outer wall of the first airbag 3 (pressing multiple times is possible) to ensure that the two soft membranes 14 rupture (this pressing trigger technology is existing technology and is not shown in the figure). The staff then picks up the capacitive touchscreen assembly 2 and shakes it to fully mix the two internal agents. The assembly is then placed into the rectangular groove inside the body 1. Because the gas expands slowly after the agents are mixed, there is no limiting force on the capacitive touchscreen assembly 2 at this stage. The staff can manually fine-tune its placement. After the staff completes the placement and fine-tuning of the capacitive touchscreen assembly 2, the second airbag 5 gradually expands evenly outwards as the gas continues to expand. The capacitive touch screen assembly 2 is provided with flexible support. With the uniform tension force on the outer wall of the first airbag 3, the first airbag 3 is precisely calibrated to the center position, thereby ensuring the installation accuracy of the capacitive touch screen assembly 2. The design of slow gas expansion after the reagent is mixed breaks the strict requirement of traditional hard limit and rigid tooling that "it must be placed in place once, and if there is a deviation, it will be scrapped". Even if there is a slight deviation during the initial manual placement, the position can be corrected in the early stage of airbag expansion, which significantly improves the yield of manual assembly. At the same time, the expansion method of the second airbag 5, which expands evenly around the perimeter, can form a 360° flexible circumferential support for the capacitive touch screen assembly 2. Through uniform tension force, it is automatically calibrated to the center position of the rectangular groove, further ensuring the accuracy of installation positioning.

[0040] Please see Figures 2-7This embodiment provides a medical capacitive touch screen assembly for preventing liquid intrusion. The puncture component includes two connecting cylinders 9 fixedly connected to the inner side of the first airbag 3. A puncture needle 11 is slidably connected to the inner side of each of the two connecting cylinders 9. One end of the puncture needle 11 is set as a cone. The puncture component also includes two limiting grooves 13 opened on the inner side of the connecting cylinders 9. A piston block 12 is slidably connected to the inner side of each of the two limiting grooves 13. A piston plate 10 is fixedly connected to the inner side of each of the two piston blocks 12. The piston plate 10 is fixedly connected to the puncture needle 11. A protective component is provided on the outer wall of the first airbag 3. Two positioning grooves 8 are opened on the outer wall of the first airbag 3. The positions of the two positioning grooves 8 are respectively located at the conical end of one of the puncture needles 11. The protective component includes four sets of metal plates 4 fixedly connected to the outer wall of the first airbag 3. Two metal plates are provided in each set of metal plates 4. A limiting sticker 15 is fixedly connected to the top of each pair of metal plates 4.

[0041] The initial four sets of metal sheets 4 are in a bent initial state, forming a rigid limit on the outer wall of the first airbag 3. This can effectively resist minor external squeezing, collisions, and accidental contact caused by assembly errors during storage, transportation, and pre-assembly. It avoids damage to the soft membrane 14 inside the first airbag 3 due to accidental contact with external force, thereby preventing the drug from reacting prematurely. At the same time, four limiting stickers 15 are respectively attached to the surface of the four sets of metal sheets 14, forming precise local physical protection for the four sets of metal sheets 14, further enhancing the anti-accidental contact effect. The overall rigid limit of the outer wall of the first airbag 3 by the metal sheets 4 and the local attachment and protection of the metal sheets 14 by the limiting stickers 15 form a double protection structure, which avoids the problem of accidental breakage of the soft membrane 14 from the root and completely eliminates the situation of the drug mixing and reacting prematurely.

[0042] After the capacitive touch screen assembly 2 completes precise positioning, the agent inside the second airbag 5 continues to react, pushing the second airbag 5 to expand further, which in turn drives the two piercing needles 11 to move towards the inner wall of the first airbag 3. When the tip of the piercing needle 11 contacts and pierces the inner wall of the first airbag 3, the glue inside overflows and flows precisely to the edge gap between the capacitive touch screen assembly 2 and the body 1. This achieves both a firm mechanical fixation between the two and allows the glue to fill the gap evenly, forming a reliable initial sealing layer and laying a solid foundation for preventing liquid intrusion. This design relies on the expansion action of the second airbag 5 to form a precise timing logic of "positioning first, then breaking the film and squeezing glue". After the screen body is calibrated to the center position by the expansion of the airbag, the piercing and squeezing action is triggered by the secondary expansion of the airbag. This fundamentally avoids the problem of glue overflowing before positioning is completed and ensures the accuracy of the fixing and sealing operation.

[0043] Meanwhile, during subsequent use of the equipment, if the sealant in the assembly area ages or cracks slightly, resulting in poor sealing, the residual adhesive inside the first airbag 3 will automatically overflow to the damaged seal under the pressure of the air, filling the gap in real time and continuously blocking the liquid intrusion path. This design breaks through the limitations of traditional one-time fixed sealing technology, realizing the integrated linkage of "positioning-fixing-sealing" in the assembly stage, and at the same time giving it a long-term sealing capability of passive automatic leak repair in the use stage. It not only effectively ensures the installation accuracy and initial sealing effect of the capacitive touch assembly 2, but also fundamentally solves the industry pain point of easy sealing failure in the later stage of traditional fixing methods, greatly improving the overall stability of the assembly structure and the reliability of the capacitive touch assembly 2 against liquid intrusion. It can effectively prevent liquids such as disinfectant, blood, and saline from entering the equipment from the sealing gap in medical scenarios, causing problems such as circuit failure and touch failure.

[0044] When the puncture needle 11 punctures the first airbag 3, its tip extends into the inner side of the positioning groove 8, thus forming a protective barrier for the body 1. This prevents the puncture needle 11 from contacting and damaging the body 1 due to excessive puncture depth, effectively improving the protection of the body 1. The positioning groove 8 provides a dedicated puncture limiting space for the puncture needle 11, which can precisely limit its maximum puncture depth, ensuring that the puncture needle only completes the membrane rupture and adhesive extrusion action on the first airbag 3, without contacting the assembly surface and internal structure of the body 1. From a structural design perspective, this completely avoids the problem of structural damage such as breakage and cracking of the body 1 caused by excessive puncture depth, fully ensuring the structural integrity of the body 1.

[0045] Please see Figures 6-8 This embodiment provides a medical-grade anti-liquid capacitive touch screen assembly and a venting device. The venting device is located inside the capacitive touch screen assembly 2 and is used to remove the capacitive touch screen assembly 2 and vent the inside of the capacitive touch screen assembly 2. The venting device includes a hose 6 fixedly connected to the air outlet of the second airbag 5, and the other end of the hose 6 is installed at the air outlet of the first airbag 3. A connecting groove 7 is provided inside the capacitive touch screen assembly 2, and one end of the connecting groove 7 communicates with the hose 6 through the air outlet of the first airbag 3. The venting device also includes a screw 16 threadedly connected to the other end of the connecting groove 7.

[0046] When the capacitive touchscreen assembly 2 needs to be disassembled for maintenance, the operator simply needs to use a screwdriver to unscrew and remove screw 16. The gas inside the second airbag 5 can then be quickly released through the connecting groove 7, thus deflating the second airbag 5. After the second airbag 5 deflates, the first airbag 3 returns to its initial position, and the locking structure becomes ineffective. The operator can then easily remove the first airbag 3, completing the disassembly of the capacitive touchscreen assembly 2. This design employs a simple disassembly method combining screw unscrewing and airbag deflation, requiring no special tools and allowing the entire operation to be completed using only a regular screwdriver. This allows staff to quickly deflate the airbag and disable the locking mechanism, avoiding damage to the screen and body structure caused by forceful prying and scraping of glue during traditional disassembly methods. It enables non-destructive disassembly of the assembly, significantly reducing the technical threshold and time required for maintenance operations. At the same time, after unscrewing the screws, the gas is quickly discharged through the connecting groove 7, the airbag can be quickly deflated and reset, and the locking structure is immediately disabled. Staff can immediately carry out subsequent disassembly and maintenance work, avoiding the time-consuming problem of scraping off the glue layer and cleaning the assembly surface during disassembly using traditional glue-fixing methods, effectively shortening the equipment's maintenance downtime.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A medical-grade liquid-resistant capacitive touchscreen assembly, characterized in that, include: The body (1) has a capacitive touch screen assembly (2) on one side, and a rectangular groove that matches the shape of one side of the capacitive touch screen assembly (2) is provided on the inner side of the body (1), and the capacitive touch screen assembly (2) is installed on the inner side of the rectangular groove. The positioning device is installed on the inner side of the capacitive touch screen assembly (2) and is used to position and calibrate the capacitive touch screen assembly (2) during installation. The positioning device includes a first airbag (3) fixedly connected to the inner side of the capacitive touch screen assembly (2). The outer wall of the first airbag (3) is set as a cone shape, and the interior of the first airbag (3) is filled with liquid sealant. A venting device is provided inside the capacitive touch screen assembly (2) for removing the capacitive touch screen assembly (2) and venting the inside of the capacitive touch screen assembly (2).

2. The medical-grade liquid-resistant capacitive touchscreen assembly according to claim 1, characterized in that: The inner side of the rectangular groove on the inner side of the body (1) is provided with a cone shape that matches the size of the outer side of the first airbag (3).

3. A medical-grade liquid-resistant capacitive touchscreen assembly according to claim 2, characterized in that: The positioning device also includes a second airbag (5) fixedly connected to the inside of the first airbag (3). The inside of the second airbag (5) is fixedly connected to two soft membranes (14), and the two soft membranes (14) are arranged vertically. The inside of the first airbag (3) is provided with a puncture component.

4. A medical-grade liquid-resistant capacitive touchscreen assembly according to claim 3, characterized in that: The puncture assembly includes two connecting cylinders (9) fixedly connected to the inside of the first airbag (3), and a puncture needle (11) is slidably connected to the inside of each of the two connecting cylinders (9).

5. A medical-grade liquid-resistant capacitive touchscreen assembly according to claim 4, characterized in that: One end of the puncture needle (11) is cone-shaped.

6. A medical-grade liquid-resistant capacitive touchscreen assembly according to claim 5, characterized in that: The puncture assembly also includes two limiting grooves (13) opened inside the connecting cylinder (9). A piston block (12) is slidably connected to the inner side of each of the two limiting grooves (13), and a piston plate (10) is fixedly connected to the inner side of each of the two piston blocks (12). The piston plate (10) is fixedly connected to the puncture needle (11), and a protective assembly is provided on the outer wall of the first airbag (3).

7. A medical-grade liquid-resistant capacitive touchscreen assembly according to claim 6, characterized in that: The outer wall of the first airbag (3) has two positioning grooves (8), and the two positioning grooves (8) are located at the conical end of one of the puncture needles (11).

8. A medical-grade liquid-resistant capacitive touchscreen assembly according to claim 7, characterized in that: The protective component includes four sets of metal plates (4) fixedly connected to the outer wall of the first airbag (3), each set of metal plates (4) has two pieces, and a limiting sticker (15) is fixedly connected to the top of each pair of metal plates (4).

9. A medical-grade liquid-resistant capacitive touchscreen assembly according to claim 8, characterized in that: The venting device includes a hose (6) fixedly connected to the air outlet of the second airbag (5), and the other end of the hose (6) is installed at the air outlet of the first airbag (3). A connecting groove (7) is provided on the inner side of the capacitive touch screen assembly (2), and one end of the connecting groove (7) is connected to the hose (6) through the air outlet of the first airbag (3).

10. A medical-grade liquid-resistant capacitive touchscreen assembly according to claim 9, characterized in that: The venting device also includes a screw (16) threaded to the other end of the connecting groove (7).

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