Capacitive touch infusion pump liquid crystal display screen assembly

Abstract

This utility model relates to the field of infusion pumps and discloses a capacitive touch infusion pump LCD display assembly, including a touch function sheet with an electrostatic protective film. A capacitive touchscreen CG layer is adhered to one side of the electrostatic protective film. A capacitive touchscreen SCA layer is disposed on the side of the CG layer away from the electrostatic protective film. A capacitive touchscreen SENSOR layer is disposed on the side of the SCA layer away from the CG layer. A capacitive touchscreen OCA layer is disposed on the side of the SENSOR layer away from the SCA layer. In this utility model, the layers are seamlessly bonded together with optical adhesive to form a flat surface. The ink layer conceals the internal circuitry, and the functional components are hidden at the edges or invisible when not in operation. The grounding circuit is concealed, eliminating redundant protrusions and achieving a simple and smooth appearance that meets high-end aesthetic requirements.

Description

Technical Field

[0001] This utility model relates to the field of infusion pumps, and in particular to a capacitive touch LCD display assembly for infusion pumps. Background Technology

[0002] To further improve the operating efficiency and safety of infusion pumps, researchers began to integrate capacitive touch technology with liquid crystal display technology. By optimizing the structural design of the touch sensing layer and the liquid crystal display layer, they solved technical problems such as signal interference and installation compatibility, ultimately creating a capacitive touch infusion pump liquid crystal display component that integrates high-definition information display and sensitive touch operation.

[0003] Infusion pumps are typically mechanical or electronic control devices that control the infusion rate by acting on the infusion tubing or pushing the syringe tubing. They are commonly used in situations where strict control of the infusion volume and medication dosage is required, such as when administering vasopressors, antiarrhythmic drugs, intravenous infusions for infants and young children, or intravenous anesthesia. The following discussion, based on clinical practice, addresses the issues that should be considered in the daily operation, maintenance, and storage of infusion pumps.

[0004] In existing technologies, the LCD displays of syringe pumps and infusion pumps generally use an LCD display combined with a resistive touchscreen, or an LCD display combined with a membrane switch, push-button switch, etc., mainly operating the function interface mechanically. The main purpose is that medical applications are very rigorous practical environments, and mechanical operation can reduce electronic and electrical errors. However, in terms of aesthetics and technological innovation, mechanical switches are easily damaged and have appearance defects. With the booming development of the market, medical devices have a demand for intelligence, technology, aesthetics and high-end features. Traditional resistive touch LCD display components for infusion pumps can no longer meet the needs of medical development. Therefore, a capacitive touch LCD display component for infusion pumps is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a capacitive touch LCD display assembly for an infusion pump, which aims to improve the appearance defects of traditional components and the problem of easy damage of mechanical switches.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A capacitive touch infusion pump liquid crystal display assembly includes a touch function sheet electrostatic protective film, a capacitive touch screen CG layer is bonded to one side of the touch function sheet electrostatic protective film, a capacitive touch screen SCA layer is disposed on the side of the capacitive touch screen CG layer away from the touch function sheet electrostatic protective film, and a capacitive touch screen SENSOR layer is disposed on the side of the capacitive touch screen SCA layer away from the capacitive touch screen CG layer.

[0008] As a further description of the above technical solution:

[0009] A capacitive touchscreen OCA layer is provided on the side of the capacitive touchscreen SENSOR layer away from the capacitive touchscreen SCA layer, and a liquid crystal display screen is provided on the side of the capacitive touchscreen OCA layer away from the capacitive touchscreen SENSOR layer.

[0010] As a further description of the above technical solution:

[0011] An ink layer is provided on the edge of the liquid crystal display screen away from the OCA layer of the capacitive touch screen. The ink layer can cover the internal driving circuit and ribbon cable of the liquid crystal display screen.

[0012] As a further description of the above technical solution:

[0013] An FPC cable is provided on one side of the sensor layer of the capacitive touch screen, and an FPC cable shielding film is provided on the surface of the FPC cable.

[0014] As a further description of the above technical solution:

[0015] The surface of the FPC cable is reinforced with steel sheets.

[0016] As a further description of the above technical solution:

[0017] A copper sheet reinforcement grounding terminal is provided on one side of the steel sheet reinforcement structure, and the motherboard grounding interface is fixedly connected to the surface of the copper sheet reinforcement grounding terminal by a tin-plated copper wire.

[0018] As a further description of the above technical solution:

[0019] The LCD screen has a through-hole structure on one side, which can only be identified by close observation when the lights are off.

[0020] As a further description of the above technical solution:

[0021] A chip is fixedly connected to the surface of the FPC cable near the SENSOR layer of the capacitive touch screen. The chip is not visible when the lights are off.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a flat surface layer is formed by the electrostatic protective film and the cover glass, and the optical adhesive layer ensures that the structure is seamlessly bonded, presenting an integrated visual effect. The ink layer covers the internal circuitry of the display screen, and the shielding film and reinforcing structure of the ribbon cable are hidden at the edge of the component. The chip and through hole are not visible when not in operation, and the grounding line is concealed. The overall design eliminates redundant protrusions. Through seamless interlayer connection and concealed functional components, the component has a simple and smooth appearance, meeting the requirements of high-end aesthetics.

[0024] 2. In this utility model, the touch component surface layer senses the capacitance change caused by static electricity from the human body, converts the touch action into an electrical signal, and transmits the signal to the chip via a flexible ribbon cable. The chip decodes and processes the signal and then transmits it to the motherboard. The motherboard controls the display screen to switch the corresponding function interface to realize the switch operation. At the same time, the ribbon cable shielding film reduces interference, and the grounding structure conducts away static electricity to ensure signal stability. The whole system replaces the traditional mechanical switch with capacitive touch, and completes the stable operation of the switch function through touch sensing, signal processing and linkage with the motherboard. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a capacitive touch infusion pump LCD display assembly proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the ink layer structure of a capacitive touch liquid crystal display assembly for an infusion pump according to the present invention.

[0027] Figure 3 A schematic diagram of the FPC cable shielding film for a capacitive touch infusion pump LCD display assembly proposed in this utility model;

[0028] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Electrostatic protective film for touch function sheet; 2. CG layer for capacitive touch screen; 3. SCA layer for capacitive touch screen; 4. SENSOR layer for capacitive touch screen; 5. OCA layer for capacitive touch screen; 6. LCD display; 7. Ink layer; 8. FPC cable; 9. Shielding film for FPC cable; 10. Steel sheet reinforcement structure; 11. Copper sheet reinforcement grounding terminal; 12. Through-hole structure; 13. Chip; 14. Motherboard ground interface. Detailed Implementation

[0031] 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 embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 This utility model provides an embodiment of a capacitive touch infusion pump LCD display assembly, including a touch function sheet electrostatic protective film 1. A capacitive touch screen CG layer 2 is bonded to one side of the touch function sheet electrostatic protective film 1. The capacitive touch screen CG layer 2 serves as the direct contact layer for touch operation, possessing good hardness and light transmittance. It can withstand the physical impact of daily touch operation while ensuring that the content displayed on the LCD display 6 is clearly visible, providing the basic support for touch interaction and display functions. A capacitive touch screen SCA layer 3 is disposed on the side of the capacitive touch screen CG layer 2 away from the touch function sheet electrostatic protective film 1. The capacitive touch screen SCA layer 3 serves as an optical adhesive layer, enabling the capacitive touch screen CG layer 2 to adhere to the subsequent capacitive touch screen SENSOR layer 4, filling the interlayer gaps, improving the stability and consistency of touch signal transmission, and making touch operation feedback more sensitive. A capacitive touch screen SENSOR layer 4 is disposed on the side of the capacitive touch screen SCA layer 3 away from the capacitive touch screen CG layer 2. The capacitive touch screen SENSOR layer 4 can sense the capacitance changes generated by human touch and convert the touch action into an electrical signal, serving as the core sensing component for realizing the capacitive touch function.

[0033] Reference Figure 1 and Figure 2 On the side of the capacitive touchscreen sensor layer 4 away from the capacitive touchscreen SCA layer 3, there is a capacitive touchscreen OCA layer 5. The capacitive touchscreen OCA layer 5 has light-transmitting and low-haze characteristics, which allows the capacitive touchscreen sensor layer 4 to be tightly bonded to the LCD screen 6, eliminating interlayer air and avoiding light refraction and reflection from affecting the display effect, ensuring a clear and complete display image. At the same time, it provides a stable medium for the transmission of touch signals from the capacitive touchscreen sensor layer 4 to the motherboard. On the side of the capacitive touchscreen OCA layer 5 away from the capacitive touchscreen sensor layer 4, there is an LCD screen 6, which serves as an information display terminal and can display the working parameters and status prompts of the infusion pump, providing intuitive visual information for medical staff.

[0034] Reference Figure 1 and Figure 4An ink layer 7 is provided on the edge of the LCD screen 6 away from the OCA layer 5 of the capacitive touch screen. The ink layer 7 can cover the internal driving circuit and ribbon cable of the LCD screen 6, prevent the internal structure from being exposed, improve the cleanliness of the component appearance, and at the same time prevent external light from directly shining on the internal circuit, reduce light interference, and indirectly improve the visibility of the display screen. The ink layer 7 can cover the internal driving circuit and ribbon cable of the LCD screen 6. By utilizing the opaque properties of ink, the ink layer 7 can cover the complex internal driving circuit and ribbon cable of the LCD screen 6, prevent these internal structures from being exposed, and make the component appearance more concise and neat.

[0035] Reference Figure 1 and Figure 3 An FPC cable 8 is provided on one side of the capacitive touch screen sensor layer 4, which serves as a signal transmission bridge. It can efficiently transmit the touch electrical signals collected by the capacitive touch screen sensor layer 4 to the motherboard and chip 13, realizing long-distance, low-loss signal transmission. An FPC cable shielding film 9 is provided on the surface of the FPC cable 8. The FPC cable shielding film 9 can effectively block external electromagnetic interference, prevent other electronic signals from affecting the purity of the touch electrical signals, ensure accurate touch command recognition, and improve the reliability of touch operation.

[0036] Reference Figure 1 The surface of the FPC cable 8 is covered with a steel sheet reinforcement structure 10. The steel sheet reinforcement structure 10 can enhance the mechanical strength of the FPC cable 8, prevent the cable from breaking or being damaged due to bending or pulling, ensure the continuous stability of the signal transmission path, and extend the service life of the component.

[0037] Reference Figure 1 and Figure 3 A copper sheet reinforcement grounding terminal 11 is provided on one side of the steel sheet reinforcement structure 10. The surface of the copper sheet reinforcement grounding terminal 11 is fixedly connected to the motherboard grounding interface 14 through tin-plated copper wire. This grounding structure can conduct the static electricity accumulated by the component to the ground in a timely manner, preventing the accumulation of static electricity from affecting the touch signal recognition accuracy and the display stability of the LCD screen 6, and creating a stable electrical environment for the component.

[0038] Reference Figure 1 The LCD screen 6 has a through-hole structure 12 on one side. The through-hole structure 12 can only be identified by close observation when the lights are off. It is used for the assembly and fixation of the component and the infusion pump housing. It adopts a concealed design, which not only meets the structural connection requirements, but also does not destroy the overall integrity and aesthetics of the front appearance of the component. The through-hole structure 12 can only be identified by close observation when the lights are off.

[0039] Reference Figure 1A chip 13 is fixedly connected to the surface of the FPC cable 8 near the capacitive touch screen sensor layer 4. The chip 13 is invisible when the lights are off. The chip 13 can decode, calculate and process the touch electrical signals transmitted by the capacitive touch screen sensor layer 4, and convert them into instruction signals that can be recognized by the infusion pump motherboard. It is a key component for realizing intelligent processing of touch function, and the concealed installation does not affect the appearance of the component. The chip 13 is invisible when the lights are off.

[0040] Working Principle: When enhancing the appearance, the electrostatic protective film 1 of the touch function sheet protects against static electricity. The capacitive touch screen CG layer 2, bonded to one side, serves as the outer layer structure for touch operation. This, along with the capacitive touch screen SCA layer 3 and the capacitive touch screen SENSOR layer 4 located away from the CG layer 2, senses touch signals. The capacitive touch screen OCA layer 5 on the side of the SENSOR layer 4 away from the SCA layer 3 achieves adhesion to the LCD screen 6, enabling coordinated touch and display functions. The ink layer 7 on the edge of the LCD screen 6 away from the OCA layer 5 conceals the internal circuitry, improving the overall cleanliness of the appearance. The FPC cable 8 on one side of the capacitive touch screen sensor layer 4 transmits touch signals. The FPC cable shielding film 9 on its surface reduces interference. The steel sheet reinforcement structure 10 enhances the cable strength. The copper sheet reinforcement grounding terminal 11 is connected to the motherboard ground interface 14 through tinned copper wire to conduct away static electricity. The through-hole structure 12 on the LCD screen 6 is used for assembly and is hidden when the light is off. The chip 13 on the FPC cable 8, close to the capacitive touch screen sensor layer 4, processes touch signals and is invisible when the light is off. Through the cooperation of various components, the stability of touch and display functions is ensured, and the appearance is optimized by using the ink layer 7 to cover and conceal the through-hole and chip 13.

[0041] When switching is required, a capacitive touch sensing system is constructed using the electrostatic protective film 1, the capacitive touchscreen CG layer 2, the capacitive touchscreen SCA layer 3, and the capacitive touchscreen SENSOR layer 4. When a medical staff member touches the surface of the capacitive touchscreen CG layer 2, the static electricity of the human body causes a capacitance change in the capacitive touchscreen SENSOR layer 4. This signal is transmitted through the capacitive touchscreen SENSOR layer 4 to the side FPC cable 8. The FPC cable shielding film 9 on the surface of the FPC cable 8 reduces external interference, and the steel reinforcement structure 10 enhances the durability of the cable. The signal is then transmitted to the chip 13 near the capacitive touchscreen SENSOR layer 4 for decoding. The chip 13 transmits the processed instructions through the FPC cable. 8. Further transmission, while the copper sheet reinforcement grounding terminal 11 is connected to the motherboard ground interface 14 through tinned copper wire, timely conduction of any accumulated static electricity, ensuring signal stability. The processed instructions drive the LCD screen 6 to display the corresponding operation feedback. The ink layer 7 on the edge of the LCD screen 6 away from the capacitive touch screen OCA layer 5 can effectively shield the internal drive circuit and ribbon cable, improving the overall integrity of the component. The through-hole structure 12, which can only be identified by close observation when the lights are off, is used for the fitting and installation of the component with the infusion pump housing. The entire process uses capacitive touch to replace mechanical switches, avoiding the problem of easy damage caused by wear and oxidation of mechanical contacts due to frequent pressing. Through collaboration, stable and durable operation and display functions are achieved.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A capacitive touch liquid crystal display assembly for an infusion pump, comprising a touch function sheet and an electrostatic protective film (1), characterized in that: A capacitive touch screen CG layer (2) is bonded to one side of the electrostatic protective film (1) of the touch function sheet. A capacitive touch screen SCA layer (3) is provided on the side of the capacitive touch screen CG layer (2) away from the electrostatic protective film (1) of the touch function sheet. A capacitive touch screen SENSOR layer (4) is provided on the side of the capacitive touch screen SCA layer (3) away from the capacitive touch screen CG layer (2).

2. The capacitive touch infusion pump liquid crystal display assembly according to claim 1, characterized in that: A capacitive touch screen OCA layer (5) is provided on the side of the capacitive touch screen SENSOR layer (4) away from the capacitive touch screen SCA layer (3), and a liquid crystal display screen (6) is provided on the side of the capacitive touch screen OCA layer (5) away from the capacitive touch screen SENSOR layer (4).

3. The capacitive touch liquid crystal display assembly for an infusion pump according to claim 2, characterized in that: An ink layer (7) is provided on the edge of the liquid crystal display screen (6) away from the capacitive touch screen OCA layer (5). The ink layer (7) can cover the internal driving circuit and ribbon cable of the liquid crystal display screen (6).

4. The capacitive touch liquid crystal display assembly for an infusion pump according to claim 1, characterized in that: An FPC cable (8) is provided on one side of the capacitive touch screen SENSOR layer (4), and an FPC cable shielding film (9) is provided on the surface of the FPC cable (8).

5. The capacitive touch liquid crystal display assembly for an infusion pump according to claim 4, characterized in that: The surface of the FPC cable (8) is fitted with a steel sheet reinforcement structure (10).

6. The capacitive touch liquid crystal display assembly for an infusion pump according to claim 5, characterized in that: A copper sheet reinforcement grounding terminal (11) is provided on one side of the steel sheet reinforcement structure (10), and the surface of the copper sheet reinforcement grounding terminal (11) is fixedly connected to the motherboard grounding interface (14) by tin-plated copper wire.

7. The capacitive touch liquid crystal display assembly for an infusion pump according to claim 2, characterized in that: The liquid crystal display screen (6) has a through hole structure (12) on one side. The through hole structure (12) can only be identified by close observation when the lights are off.

8. The capacitive touch liquid crystal display assembly for an infusion pump according to claim 4, characterized in that: A chip (13) is fixedly connected to the surface of the FPC cable (8) near the SENSOR layer (4) of the capacitive touch screen. The chip (13) is invisible when the lights are off.

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