Three-sided inductive circuit

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, disclose a three -sided induction circuit, three -sided induction circuit includes three circuit boards, the circuit board intercalation each other, every circuit board contains a group of induction element circuit, and every induction element circuit power supply part is connected with each other. The utility model solves the problem that the narrow space in the finger clamp assembly of medical robot operating platform uses flexible board big -angle bending possibly damaged wiring, reduces the failure rate, improves the reliability, and significantly improves the practicality, adaptability and user experience of product.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a three-sided sensing circuit. Background Technology

[0002] In the design of finger gripper components for medical robot operating tables, the internal space is typically compressed to the millimeter scale due to limitations in ergonomic adaptation and operational flexibility requirements. To achieve multimodal sensing functions (such as pressure feedback, tactile positioning, and temperature monitoring), designers often use flexible printed circuit boards (FPCs) as sensor integration carriers—due to their foldable, lightweight, and space-efficient characteristics, they can coordinate the layout of micro-sensor arrays (which may include MEMS pressure sensors, strain gauges, thermocouples, etc.) and signal processing modules within a small area through Z-shaped folding or rolling. However, this structure presents significant reliability challenges in practical applications: when operators perform complex grasping actions, the gripper may experience dynamic bending exceeding 120° (the safe bending angle in typical mechanical designs is generally within 90°), causing metal fatigue cracks in the copper foil traces inside the FPC due to repeated deformation, or causing the adhesive layer between the polyimide substrate and the copper foil to peel off due to shear stress. Such physical damage can directly cause signal transmission interruptions, sensor malfunctions, and other failures, not only reducing operational accuracy (e.g., delayed or distorted tactile feedback) but also potentially affecting the safety of decision-making in high-precision scenarios such as surgery due to the loss of critical data. Currently, due to the constraints of finger clamp space, it is difficult to completely avoid wiring damage caused by extreme bending, thereby increasing equipment maintenance costs and downtime risks. Utility Model Content

[0003] The purpose of this invention is to provide a three-sided sensing circuit that solves the problem of potential damage to wiring caused by large-angle bending of flexible boards when using sensors in the narrow space of the finger clamp assembly of a medical robot operating table, thereby reducing the failure rate and improving reliability.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a three-sided sensing circuit, which includes three circuit boards that are interconnected. Each circuit board contains a set of sensing element circuits, and the power supply parts of each sensing element circuit are interconnected.

[0006] Optionally, the power input and / or signal output of the three-sided sensing circuit are concentrated on one of the circuit boards.

[0007] Optionally, the three circuit boards in the three-sided sensing circuit are connected in an "H" shape, with the middle board being the center board, and the power input and signal output of the three-sided sensing circuit are concentrated on the center board.

[0008] Optionally, the power terminal portion of the intermediate plate is connected to the power terminal portions of the two side circuit boards by welding.

[0009] Optionally, the sensing element circuit includes a light sensing circuit and / or a magnetic sensing circuit.

[0010] Optionally, in the three-sided sensing circuit, the sensing element circuit on the central plate is a magnetic sensing circuit, and the sensing element circuit on the two side circuit boards is a light sensing circuit.

[0011] Optionally, in the three-sided sensing circuit, the sensing element circuit on the central plate is a photosensitive circuit, and the sensing element circuit on the two side circuit boards is a magnetic sensing circuit.

[0012] Optionally, the light sensing circuit in the three-sided sensing circuit adopts a patch reflective infrared photoelectric sensor.

[0013] Optionally, the magnetic induction circuit in the three-sided induction circuit adopts a linear Hall sensor. Based on the above description, the technical effects of this application are specifically reflected in the following aspects:

[0014] This application's three-sided sensing circuit solves the problem that the wiring may be damaged by bending the flexible board at a large angle in the confined space of the finger gripper assembly of the medical robot operating table. It reduces the failure rate, improves reliability, and significantly enhances the product's practicality, adaptability, and user experience. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of a three-sided sensing circuit provided for an exemplary embodiment of this disclosure;

[0016] Figure 2 A three-dimensional structural schematic diagram of a three-sided sensing circuit provided as an exemplary embodiment of this disclosure from another perspective;

[0017] Figure 3 A schematic diagram of the structure of a three-sided sensing circuit from another perspective, provided as an exemplary embodiment of this disclosure;

[0018] Figure 4 A schematic diagram of the structure of a photosensitive circuit provided for an exemplary embodiment of this disclosure;

[0019] Figure 5 This is a schematic diagram of the structure of a magnetic induction circuit provided for an exemplary embodiment of the present disclosure. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] I. Explanation of descriptive terms used in this utility model

[0022] The embodiments provided in conjunction with the technical solutions of this utility model are intended to make the present utility model more thorough and complete, and to fully express the scope of the present utility model to those skilled in the art. It should be noted that unless otherwise specifically stated by the present utility model, the relative arrangement of components described in these embodiments should be interpreted as merely exemplary, and not as a limitation on the technical solutions of the present utility model.

[0023] In this utility model, the use of directional terms such as "upper," "lower," "left," "right," "bottom," and "top" is defined relative to the directions shown in the accompanying drawings and is used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These or other directional terms should not be construed as restrictive terms.

[0024] In this utility model, the terms "a," "an," "a kind," "the," and similar words used do not indicate quantity limitation and can represent singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," "third," etc., used in this utility model are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0025] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not exist between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0026] Furthermore, this utility model does not discuss in detail the technologies and equipment known to those skilled in the art, but where appropriate, such technologies and equipment should be considered part of the specification.

[0027] II. Based on the above problems, this utility model provides a technical solution to solve the above problems. The technical solution, working principle and technical effect of this utility model are described in detail below with reference to specific embodiments and figures.

[0028] Figure 1 and Figure 2This is a three-dimensional structural diagram of a three-sided sensing circuit provided for an exemplary embodiment of the present disclosure. The three-sided sensing circuit includes three circuit boards that are interconnected. Each circuit board contains a set of sensing element circuits, and the power supply sections of each sensing element circuit are interconnected.

[0029] Specifically, the three-sided sensing circuit consists of three circuit boards (first circuit board 1, second circuit board 2, and third circuit board 3), and their insertion angle is unrestricted. The embodiment uses a vertical insertion as an example. This vertical insertion layout allows the three circuit boards to form mutually orthogonal planar structures in three-dimensional space (e.g., ...). Figure 1 As shown in the diagram, this design effectively utilizes space resources while avoiding electromagnetic interference between circuit boards. Each circuit board integrates a set of sensing element circuits. In this embodiment, each set contains only one sensing element 4, but in practical applications, it can be expanded to a parallel or series structure of multiple sensing elements. The power terminals 5 (i.e., power supply interfaces) of the sensing elements are interconnected with the power terminals of the sensing element circuits on adjacent circuit boards via a plug-in structure, enabling the sensing elements in three directions to detect signals from three directions. This interconnection method must ensure reliable electrical contact between terminals, and physical connection schemes such as pins, slots, or flexible connectors may be used.

[0030] In this embodiment, due to the interlocking between circuit boards, the sensing elements on each circuit board are distributed on top, reducing the overall circuit size. Furthermore, the interlocking structure ensures robustness and stability. This solves the problem of potential damage to wiring caused by bending flexible boards at large angles in the confined space of the finger gripper assembly in medical robot operating tables, reducing the failure rate, improving reliability, and significantly enhancing the product's practicality, adaptability, and user experience.

[0031] In one embodiment, the power input and signal output of the three-sided sensing circuit are concentrated on one of the circuit boards.

[0032] Specifically, in this embodiment, the power inputs and / or signal outputs of the three circuit boards are consolidated onto one circuit board with unified connecting wires. This consolidates all power inputs and signal outputs onto a single line, which helps reduce wire tangling. Furthermore, reducing the number of wires lightens the overall weight of the wiring harness, improving the flexibility of the medical robot during movement.

[0033] In one embodiment, the three circuit boards in the three-sided sensing circuit are connected in an "H" shape, with the middle board being the center board, and the power input and signal output of the three-sided sensing circuit are concentrated on the center board.

[0034] Specifically, in this embodiment, the side plate and the center plate are bidirectionally plugged and locked, and the three circuit boards are plugged together to form an H-shaped structure, wherein the connection angle between the middle plate and the two side plates is 90°, thereby reducing the volume while maintaining the rigidity of the overall structure.

[0035] In one embodiment, the power terminal portion of the intermediate plate is connected to the power terminal portions of the two side circuit boards by soldering.

[0036] Specifically, such as Figure 3 As shown, the power supply end of the middle board has metal connecting parts 6 extending to both sides and connected to the power supply terminal parts 5 of the side circuit board. The two are connected by welding to ensure the reliability of the connection.

[0037] In one embodiment, the sensing element circuit includes a light sensing circuit and / or a magnetic sensing circuit.

[0038] Specifically, in order to detect light or magnetic signals from different directions in the confined space of the finger gripper assembly of the medical robot operating table, it is necessary to arrange light sensing circuits and / or magnetic sensing circuits in the sensing element circuits on the circuit boards on different sides. The specific sensing circuits are determined by the actual use process.

[0039] In one embodiment, the sensing element circuit on the center board of the three-sided sensing circuit is a magnetic sensing circuit, and the sensing element circuits on the two side circuit boards are light sensing circuits.

[0040] In one embodiment, the sensing element circuit on the center board of the three-sided sensing circuit is a light sensing circuit, and the sensing element circuits on the two side circuit boards are magnetic sensing circuits.

[0041] Specifically, in the above embodiments, different sensing circuits can be arranged on the center plate and the two side circuit boards, such as... Figure 4 The diagram shows a photosensing circuit. OP1 is a photosensor, and a +5V DC power supply is input to the photosensing component OP1. The signal output of OP1 is connected to the signal output terminal (SW) of the three-sided sensing circuit via a switching diode. Figure 5 The diagram shows a magnetic induction circuit. U1 is a magnetic induction sensor. A +5V DC power supply is input to the VDD port of the magnetic induction sensor, and the other end is grounded through capacitors C1 and C2. One end of the signal output port (OUT) of the magnetic induction sensor is grounded through capacitor C3, and the other end is connected to the signal output terminal (SW) of the three-sided induction circuit. Capacitor C1 is 1uF / 10V, and C2 and C3 can be 10nF / 10V. Figure 4 and Figure 5 P1 is the common connection terminal for the three circuit boards.

[0042] In one embodiment, the light sensing circuit in the three-sided sensing circuit uses a patch reflective infrared photoelectric sensor.

[0043] Specifically, the photosensitive component OP1 can be a patch reflective infrared photoelectric sensor, and the specific model can be ITR8307 / S18 / TR8.

[0044] In one embodiment, the magnetic induction circuit in the three-sided induction circuit uses a linear Hall sensor.

[0045] Specifically, the magnetic induction sensor U1 can be a linear Hall sensor, specifically the HAL4904SO.

[0046] The above description is only a preferred embodiment of this application and is not intended to limit the present utility model. 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.

[0047] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A three-sided induction circuit, characterized in that, The three-sided sensing circuit includes three circuit boards that are interconnected. Each circuit board contains a set of sensing element circuits, and the power supply parts of each sensing element circuit are interconnected.

2. The three-sided induction circuit according to claim 1, characterized in that, The power input and / or signal output of the three-sided sensing circuit are concentrated on one of the circuit boards.

3. The three-sided induction circuit according to claim 2, characterized in that, The three circuit boards in the three-sided sensing circuit are connected in an "H" shape, with the middle board being the center board. The power input and signal output of the three-sided sensing circuit are concentrated on the center board.

4. The three-sided induction circuit according to claim 3, characterized in that, The power terminal section of the intermediate board is connected to the power terminal sections of the two side circuit boards by welding.

5. The three-sided induction circuit according to claim 4, characterized in that, The sensing element circuit includes a light sensing circuit and / or a magnetic sensing circuit.

6. The three-sided induction circuit according to claim 5, characterized in that, In the three-sided sensing circuit, the sensing element circuit on the central plate is a magnetic sensing circuit, and the sensing element circuits on the two side circuit boards are light sensing circuits.

7. The three-sided induction circuit according to claim 5, characterized in that, In the three-sided sensing circuit, the sensing element circuit on the central plate is a light sensing circuit, and the sensing element circuits on the two side circuit boards are magnetic sensing circuits.

8. The three-sided induction circuit according to claim 5, characterized in that, The light sensing circuit in the three-sided sensing circuit adopts a patch reflective infrared photoelectric sensor.

9. The three-sided induction circuit according to claim 5, characterized in that, The magnetic induction circuit in the three-sided induction circuit uses a linear Hall sensor.

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