Detection probe and detection equipment
By using a flexible printed circuit (FPC) board to connect the sound head and cable assembly in the detection probe, the problem of internal electronic components interfering with the pressure sensor was solved, thus improving the accuracy and stability of the detection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-03
AI Technical Summary
The internal electronic components of the existing detection probe interfere with the pressure sensor, affecting the accuracy of the pressure data detection results.
A flexible printed circuit (FPC) board is used to electrically connect the sound head to the cable assembly. The sound head is connected to the pressure sensor through the FPC board, reducing interference with the pressure.
It improves the accuracy and pressure resistance of test results and enhances long-term stability in complex environments.
Smart Images

Figure CN224070480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, and more specifically, to a detection probe and detection device. Background Technology
[0002] In related technologies, ultrasound elastography equipment includes a detection probe. When elastography is applied clinically, the doctor needs to hold the probe to perform the elastography scan. The detection probe generally includes an acoustic head and a pressure sensor. The acoustic head contacts and presses against the area being tested, transmitting the force to the pressure sensor. The pressure sensor then transmits the sensed pressure data to the mainboard to achieve pressure detection. However, the internal electronic components of current detection probes (e.g., circuit boards or adapter boards) can cause significant interference to the acoustic head, thus affecting the pressure data sensed by the pressure sensor and consequently the detection results.
[0003] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content
[0004] One objective of this invention is to provide a new technical solution for a detection probe.
[0005] According to a first aspect of the present invention, a detection probe is provided. The detection probe includes:
[0006] case;
[0007] The sound head is mounted on the housing;
[0008] A pressure sensor is installed inside the housing, and the sound head is movable toward the pressure sensor to apply pressure to the pressure sensor;
[0009] A flexible printed circuit board (FPC) is housed within the housing and connected to the sound head, which can be electrically connected to a cable assembly via the FPC.
[0010] Optionally, the cable assembly includes a cable body and an adapter, the adapter being housed within the housing, one end of the cable body being inserted into the housing to connect with the adapter, and the end of the flexible printed circuit board (FPC) away from the sound head being connected to the adapter.
[0011] Optionally, the adapter is located on the side of the pressure sensor opposite to the acoustic head.
[0012] Optionally, the housing includes a first outer shell and a second outer shell, which are slidably connected relative to each other. The sound head is mounted in the first outer shell, and the pressure sensor is mounted inside the second outer shell.
[0013] Optionally, the first housing is fitted onto a portion of the second housing, or the second housing is fitted onto a portion of the first housing.
[0014] Optionally, a flexible adhesive is used to fill the space between the first housing and the second housing.
[0015] Optionally, the flexible printed circuit board (FPC) is at least partially housed within the second housing, and one end of the FPC extends upward toward the sound head and is connected to the sound head.
[0016] Optionally, the device also includes a connector on which the pressure sensor is mounted, and the connector is connected to the inner wall of the housing.
[0017] Optionally, it also includes a motherboard housed within the housing and electrically connected to the pressure sensor.
[0018] According to a second aspect of the present invention, a detection device is provided. This detection device includes the detection probe described in the above embodiments.
[0019] One technical advantage of this application is that the sound head and pressure sensor are disposed inside the housing. The sound head is electrically connected to the cable assembly through a flexible printed circuit (FPC) board. When the sound head moves toward the pressure sensor to apply pressure to the pressure sensor, the flexible structure of the FPC board can reduce interference with the pressure, thereby improving the accuracy of the detection results.
[0020] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description
[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.
[0022] Figure 1 This is a cross-sectional view of the detection probe according to an embodiment of the present invention.
[0023] Figure label:
[0024] 1. Sound head; 2. First housing; 3. Pressure sensor; 4. Connector; 5. Flexible printed circuit board (FPC); 6. Main board; 7. Second housing; 8. Adapter; 9. Cable body. Detailed Implementation
[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
[0026] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.
[0027] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.
[0028] In all the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0029] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.
[0030] According to one embodiment of this application, a detection probe is provided. For example... Figure 1 As shown, the detection probe includes a housing, a sound head 1, a pressure sensor 3, and a flexible printed circuit (FPC) board 5. The sound head 1 is mounted in the housing. The pressure sensor 3 is mounted inside the housing, and the sound head 1 is movable toward the pressure sensor 3 to apply pressure to the pressure sensor 3. The flexible printed circuit (FPC) board 5 is housed within the housing and connected to the sound head 1, and the sound head 1 is electrically connected to a cable assembly via the flexible printed circuit (FPC) board 5.
[0031] In this example, the sound head 1 and the pressure sensor 3 are disposed inside the housing. The sound head 1 is electrically connected to the cable assembly through the flexible printed circuit board 5. When the sound head 1 moves toward the pressure sensor 3 to apply pressure to the pressure sensor 3, the flexible structure of the flexible printed circuit board 5 can reduce the interference with the pressure, thereby improving the accuracy of the detection results.
[0032] It should be noted that the operator (e.g., a doctor or nurse) can grasp the housing, causing the detection end of the acoustic probe 1 protruding from the housing to contact the skin, and then press it. The side of the acoustic probe 1 away from the detection end contacts the pressure sensor 3. During pressing, the acoustic probe 1 can move towards the pressure sensor 3, allowing the side of the acoustic probe 1 away from the detection end to apply pressure to the pressure sensor 3. After the test is completed or when no pressure is applied, the pressure sensor 3 can push the acoustic probe 1 back to its original position. One end of the flexible printed circuit board 5 is electrically connected to the acoustic probe 1, and the other end is electrically connected to the cable assembly, thereby enabling the transmission of detection data such as pressure values to an external display device. Since the flexible printed circuit board 5 is a flexible board, it will deform under pressure when the acoustic probe 1 applies pressure to the pressure sensor 3. The influence of the flexible printed circuit board 5 on the pressure sensor 3 is relatively small, thus improving the accuracy of the test results.
[0033] In this example, the flexible printed circuit board 5 is housed within the housing, meaning that the flexible printed circuit board 5 can be directly placed inside the housing. The flexible printed circuit board 5 is not rigidly connected to other fixed structures, which helps to further reduce the impact of pressure on the pressure sensor 3 when pressure is applied to the pressure sensor 3 by the sound head 1, thereby further improving the accuracy of the detection results.
[0034] In this example, multiple flexible printed circuit (FPC) boards 5 can be provided. For example, two, three, or four flexible printed circuit (FPC) boards 5 can be provided. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.
[0035] In one example, such as Figure 1 As shown, the cable assembly includes a cable body 9 and an adapter 8. The adapter 8 is housed within the housing. One end of the cable body 9 is inserted into the housing to connect with the adapter 8. The end of the flexible printed circuit board 5 away from the head 1 is connected to the adapter 8.
[0036] In this example, the flexible printed circuit board (FPC) 5 is electrically connected to the cable body 9 via an adapter 8. The adapter 8 is a circuit board assembly with a specific circuit layout and connectors, playing a crucial role in connecting and converting signals. The adapter 8 is used to transmit signals from the cable body 9 to the FPC 5, or vice versa. The adapter 8 is housed within a housing, and one end of the cable body 9 can be inserted into the housing and connected to the adapter 8.
[0037] like Figure 1As shown, in this example, the housing has openings at opposite ends. One end of the cable body 9 can extend into the housing through one of the openings, and the other end of the cable body 9 can be electrically connected to a display device. The sound sensor 1 is installed inside the housing, and the detection end of the sound sensor 1 can protrude from the opening at the end of the housing away from the cable.
[0038] In this example, the cable body 9 can be connected to the housing to ensure the stability of the cable body 9. For example, the cable body 9 can be connected to the inner wall of the housing by means of clips, adhesives, etc. Those skilled in the art can determine the appropriate method based on the actual situation, and no specific limitation is made here.
[0039] In one example, such as Figure 1 As shown, the adapter 8 is located on the side of the pressure sensor 3 opposite to the sound head 1.
[0040] like Figure 1 As shown, in this example, the adapter 8 is housed within the housing and located on the side of the pressure sensor 3 facing away from the acoustic head 1, so as to make full use of the installation space within the housing. The adapter 8 is housed within the housing, meaning it can be placed directly inside the housing. The adapter 8 is only electrically connected to the flexible printed circuit board 5 and the cable body 9; it is not rigidly connected to other fixed structures. When the acoustic head 1 applies pressure to the pressure sensor 3, the flexible printed circuit board 5 deforms under pressure, which can also slightly push the adapter 8 to move. This further reduces the impact of the pressure applied to the pressure sensor 3 by the acoustic head 1, thereby further improving the accuracy of the detection results and significantly enhancing the pressure resistance and long-term stability of the entire detection probe in complex environments.
[0041] Furthermore, the flexible printed circuit board 5 possesses excellent flexibility and high reliability, ensuring that the signal transmission between the sound head 1 and the adapter 8 remains highly stable and accurate.
[0042] In one example, such as Figure 1 As shown, the housing includes a first outer shell 2 and a second outer shell 7, which are slidably connected relative to each other. The sound head 1 is installed in the first outer shell 2, and the pressure sensor 3 is installed inside the second outer shell 7.
[0043] like Figure 1As shown, in this example, the first housing 2 and the second housing 7 are interconnected to form the housing. The acoustic probe 1 is connected inside the first housing 2, and the pressure sensor 3 is connected inside the second housing 7. The first housing 2 and the second housing 7 are slidable relative to each other; that is, they can move closer to or further apart, thereby allowing the acoustic probe 1 to move toward or away from the pressure sensor 3. By providing the first housing 2 and the second housing 7, it is convenient to assemble devices such as the acoustic probe 1 and the pressure sensor 3 within the housing.
[0044] In this example, the sound head 1 can be mechanically clamped to the first housing 2. Specifically, the sound head 1 is clamped by at least one clamping mechanism, each equipped with at least two adjusting screws. Tightening these screws secures the sound head 1. A flexible, resilient material is then used to create a sleeve that encloses the sound head 1 and secures it to the first housing 2 with an elastic anti-slip band. This method ensures close contact between the sound head 1 and the first housing 2 even if the first housing 2 is deformed or damaged, preventing the sound head 1 from detaching. Furthermore, this method is suitable for sound heads of various sizes and is easy to adjust.
[0045] Alternatively, the sound head 1 can be fixed to the first housing 2 via a threaded connection. That is, matching threaded holes are provided on both the first housing 2 and the sound head 1, and screws are used to tighten and fix them together. Based on the threaded connection, an adjustable structure, such as a graduated threaded rod or slider, can be designed to adjust the relative position of the sound head 1 and the first housing 2 as needed. This fixing method is simple and reliable, and suitable for applications requiring the resistance to large external forces.
[0046] Alternatively, the sound head 1 can be connected to the first housing 2 by means of a snap-fit mechanism. That is, a specially designed snap-fit structure is used to tightly connect the sound head 1 and the first housing 2. The snap-fit is made of an elastic material so that it can deform and lock the sound head 1 under pressure, and be easily disassembled when the pressure is released. This fixing method is simple to operate and facilitates quick disassembly and installation.
[0047] Alternatively, the sound head 1 can be fixed by a sliding rail and a slider. That is, a sliding rail is provided on the first housing 2, the sound head 1 is mounted on the slider, the position of the sound head 1 is adjusted by sliding the slider on the sliding rail, and the slider is fixed by a locking device.
[0048] Of course, those skilled in the art can choose a suitable fixing method for the specific connection of the sound head 1 based on the specific application scenario and requirements. In practical applications, factors such as the reliability, convenience, maintainability, and cost of the fixing method also need to be considered, but no specific limitations are made here.
[0049] In one example, the first housing 2 is fitted onto a portion of the second housing 7, or the second housing 7 is fitted onto a portion of the first housing 2.
[0050] In this example, the first housing 2 and the second housing 7 each have openings at both ends. One opening at one end of the first housing 2 corresponds to one opening at one end of the second housing 7, allowing the sound sensor 1 to correspond to the pressure sensor 3, thus enabling pressure to be applied to the pressure sensor 3. The detection end of the sound sensor 1 can protrude from the end of the first housing 2 opposite to the second housing 7. One end of the cable body 9 can extend into the second housing 7 from the end of the second housing 7 opposite to the first housing 2.
[0051] In this example, the second outer shell 7 can be fitted onto the outer side of a portion of the first outer shell 2, and the first outer shell 2 and the second outer shell 7 are movable relative to each other. The first outer shell 2 has a thinner section on one side along the axial direction and a thicker section on the other. The outer diameter of the thinner section is smaller than the outer diameter of the thicker section. The second outer shell 7 can be fitted onto the thinner section and can slide relative to the first outer shell 2 along the thinner section.
[0052] Alternatively, the first outer shell 2 can be fitted onto the outside of a portion of the second outer shell 7. Of course, the specific connection method between the first outer shell 2 and the second outer shell 7 can be determined by those skilled in the art according to the actual situation, and is not specifically limited here.
[0053] In one example, flexible adhesive is used to fill the space between the first housing 2 and the second housing 7.
[0054] In this example, the second outer shell 7 can be fitted over a portion of the first outer shell 2. The connection between the first outer shell 2 and the second outer shell 7 is filled with flexible adhesive to provide a certain degree of sealing and waterproofing, thereby protecting the electronic components inside the shell. This flexible adhesive is also known as soft adhesive or non-structural adhesive. Because the space between the first outer shell 2 and the second outer shell 7 is filled with a flexible component, the first outer shell 2 and the second outer shell 7 can move relative to each other.
[0055] The flexible adhesive can be a flexible sealant, a flexible foamed rubber and plastic sheet adhesive, a flexible ceramic adhesive, etc. Those skilled in the art can determine the appropriate type based on the specific circumstances; no specific limitations are made here.
[0056] In one example, the flexible printed circuit board 5 is at least partially housed within the second housing 7, and one end of the flexible printed circuit board 5 extends upward toward and connects to the sound head 1. The flexible printed circuit board 5 being at least partially disposed inside the second housing 7 allows for efficient use of the space within the housing and facilitates connection between the flexible printed circuit board 5 and the adapter 8.
[0057] In one example, such as Figure 1As shown, the detection probe also includes a connector 4, the pressure sensor 3 is mounted on the connector 4, and the connector 4 is connected to the inner wall of the housing.
[0058] like Figure 1 As shown, in this example, the connector 4 is connected to the inner wall of the housing. For example, the connector 4 can be fixedly connected to the inner wall of the second housing 7 by fasteners such as screws. The pressure sensor 3 can be connected to the connector 4 by fasteners such as screws, so that the pressure sensor 3 is connected to the inner wall of the second housing 7 through the connector 4.
[0059] In this example, connector 4 can also be connected to the second housing 7 via a snap-fit mechanism. That is, the connector 4 and the second housing 7 are tightly connected using a snap-fit structure. Snap-fit mechanisms are typically designed to be flexible, deforming and locking under pressure, and facilitating disassembly when the pressure is released. This fixing method is simple to operate and facilitates quick disassembly and installation.
[0060] Alternatively, connector 4 can also be connected to the second housing 7 by welding, that is, by welding connector 4 to the second housing 7. This fixing method is suitable for metal second housing 7 and connector 4. This method provides a firm fixation and high connection strength, and is suitable for applications that need to withstand large external forces and vibrations.
[0061] Alternatively, connector 4 can also be fixedly connected to the second housing 7 by adhesive bonding, that is, by using an adhesive (such as epoxy resin, silicone, etc.) to bond connector 4 to the second housing 7. This fixing method is more flexible and can accommodate connectors 4 and second housings 7 of various shapes and materials.
[0062] Alternatively, connector 4 can be fixed to the second housing 7 via a threaded connection. That is, matching threaded holes are provided on the second housing 7 and connector 4, bolts are passed through these holes, and nuts are tightened to secure them. This fixing method can achieve more complex fixing needs by adjusting the number and position of bolts and nuts, providing a firm fixation, high connection strength, and allowing adjustment of the fixing position and force as needed.
[0063] Alternatively, the connector 4 can be fixedly connected to the second housing 7 via a slide rail and a slider. That is, a slide rail is provided on the second housing 7, the connector 4 is mounted on the slider, and the position of the fixing component is adjusted by sliding the slider on the slide rail. The slider is then fixed by a locking device. This fixing method is suitable for situations where the position of the fixing component needs to be adjusted.
[0064] Of course, regarding the specific connection method of the connector 4, those skilled in the art can comprehensively consider factors such as the material, shape, working environment and fixing requirements of the connector 4 and the second housing 7 to ensure that the fixing is firm, stable and reliable, and no specific limitation is made here.
[0065] In one example, such as Figure 1 As shown, the detection probe also includes a motherboard 6, which is housed within the housing and is electrically connected to the pressure sensor 3.
[0066] like Figure 1 As shown, in this example, the motherboard 6 can be disposed inside the second housing 7. The motherboard 6 is electrically connected to the pressure sensor 3. The pressure sensor 3 transmits the sensed pressure data to the motherboard 6 to realize pressure detection.
[0067] According to a second aspect of the present invention, a detection device is provided. The detection device includes the detection probe described in the above embodiments. The detection probe includes a housing, a sound head 1, a pressure sensor 3, and a flexible printed circuit (FPC) board 5. The sound head 1 is mounted in the housing, and the pressure sensor 3 is mounted inside the housing. The sound head 1 is movable toward the pressure sensor 3 to apply pressure to the pressure sensor 3. The flexible printed circuit (FPC) board 5 is housed within the housing and connected to the sound head 1. The sound head 1 is electrically connected to a cable assembly via the flexible printed circuit (FPC) board 5. With the sound head 1 and pressure sensor 3 disposed within the housing, and the sound head 1 electrically connected to the cable assembly via the flexible printed circuit (FPC) board 5, the flexible structure of the flexible printed circuit (FPC) board 5 reduces interference with the pressure when the sound head 1 moves toward the pressure sensor 3 to apply pressure, thereby improving the accuracy of the detection results.
[0068] Of course, the testing equipment also includes at least all the beneficial effects of the above embodiments, which will not be elaborated here.
[0069] In this example, the detection device is a device that can be used for ultrasonic elastography detection. The detection device may also include a display device, etc. The detection probe can be connected to the display device through a cable assembly for signal transmission.
[0070] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.
[0071] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A detection probe, characterized by, The application relates to a detection probe. The detection probe comprises a shell, a sound head (1) mounted on the shell, a pressure sensor (3) mounted in the shell, the sound head (1) being capable of moving towards the pressure sensor (3) to apply pressure to the pressure sensor (3), a flexible printed circuit (FPC) board (5) accommodated in the shell and connected with the sound head (1), the sound head (1) being capable of being electrically connected with a cable assembly through the flexible printed circuit (FPC) board (5). The cable assembly comprises a cable body (9) and an adapter (8), the adapter (8) being accommodated in the shell, one end of the cable body (9) being inserted into the shell to be connected with the adapter (8), and one end of the flexible printed circuit (FPC) board (5) away from the sound head (1) being connected with the adapter (8). The adapter (8) is located on the side of the pressure sensor (3) away from the sound head (1). The shell comprises a first shell (2) and a second shell (7), the first shell (2) and the second shell (7) being relatively slidably connected, the sound head (1) being mounted on the first shell (2), and the pressure sensor (3) being mounted in the second shell (7).
2. The detection probe of claim 1, wherein The first shell (2) is sleeved on part of the second shell (7), or the second shell (7) is sleeved on part of the first shell (2).
3. The detection probe of claim 2, wherein, Flexible glue is filled between the first shell (2) and the second shell (7).
4. The detection probe of claim 1, wherein The flexible printed circuit (FPC) board (5) is at least partially accommodated in the second shell (7), and one end of the flexible printed circuit (FPC) board (5) extends upwards towards the sound head (1) and is connected with the sound head (1).
5. The detection probe of claim 4, wherein, The detection probe further comprises a connecting piece (4), the pressure sensor (3) being mounted on the connecting piece (4), and the connecting piece (4) being connected with the inner wall of the shell.
6. The detection probe of claim 5, wherein, The detection probe further comprises a main board (6) accommodated in the shell, the main board (6) being electrically connected with the pressure sensor (3).
7. The detection probe of claim 4, wherein The detection probe comprises the detection probe as claimed in any one of claims 1 to 9.
8. The detection probe of claim 1, wherein, 9. The detection probe of claim 1, wherein, 10. A detection device, characterized by