Split type ultrasonic fetus-voice meter

Abstract

The utility model relates to the technical field of fetal heart measuring equipment, and discloses a split type ultrasonic fetus-voice meter which comprises a host unit and a display screen unit which are arranged in a split mode, and the host unit is connected with the display screen unit in a wireless communication mode. And the host unit and the display screen unit are fixedly positioned and connected with each other in a magnetic attraction manner. A display screen unit carrying a display screen and a host unit carrying other parts are arranged in a split mode, the display screen unit and the host unit are combined together through magnetic force, and fetal heart signals of the host unit are transmitted to the display screen unit to be displayed in a wireless transmission mode. A user can hold the display screen unit or place the display screen unit at any position to check real-time data, fatigue caused by long-time head-lowering data checking of a pregnant woman user and inconvenience in operation in the middle and late pregnancy are avoided, user experience and monitoring efficiency are improved, and the problems that an ultrasonic fetus-voice meter in the prior art is prone to causing cervical vertebra fatigue, cable constraint and monitoring interruption are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of fetal heart rate measurement equipment, and in particular, to a split-type ultrasonic fetal heart rate monitor. Background Technology

[0002] Fetal heart rate monitoring is an important method of prenatal examination. Ultrasonic fetal heart rate monitors detect fetal heart rate (FHR) using the Doppler principle and are widely used in clinical and home settings. Currently, the mainstream fetal heart rate monitor structures are mainly divided into two categories: integrated structures and split wired structures. However, existing technologies still have many shortcomings, affecting user experience and monitoring results.

[0003] 1. Integrated Fetal Heart Rate Monitor: Traditional integrated fetal heart rate monitors combine the ultrasound probe with the main unit, requiring the user to hold the device and look down at the screen to obtain fetal heart rate data. However, this design has the following problems:

[0004] Neck fatigue: Prolonged head-down operation can easily cause neck discomfort in pregnant women, affecting their comfort.

[0005] Monitoring Interruption: If users need to view data in real time (such as recording or analysis), they must interrupt the monitoring process, reducing the continuity of monitoring.

[0006] Inconvenient to operate: The probe is fixedly connected to the main unit, and the signal capture may be affected by the size limitation of the machine body when adjusting the angle.

[0007] 2. Split-type wired fetal heart rate monitor

[0008] The separate structure separates the probe from the display terminal and connects them via a cable. While this avoids the need for bending over during operation, it still has the following drawbacks:

[0009] Cable fatigue: The elastic connecting cable needs to be pulled continuously to maintain probe contact, which can easily lead to hand fatigue for users after prolonged use;

[0010] Cable tangling: Elastic cords are prone to tangling and knotting, which affects the ease of operation and may even lead to poor contact or signal interruption;

[0011] Limited mobility: The fixed length of the cable restricts the pregnant woman's freedom of movement, which is especially inconvenient when monitoring for a long time or adjusting her position.

[0012] Poor durability: Frequent bending can easily cause internal breakage of the cable, reducing the service life of the equipment. Utility Model Content

[0013] This invention provides a split-type ultrasound fetal heart monitor, which separates the display unit (containing the screen) from the main unit (containing other components). The display unit and the main unit are magnetically connected, and the fetal heart rate signal from the main unit is transmitted wirelessly to the display unit for display. The display unit is completely separate from the main unit and its probe, supporting wireless connection. Users can hold the display unit or place it anywhere to view real-time data, avoiding fatigue caused by prolonged head-down viewing and operational inconvenience in the mid-to-late stages of pregnancy. This improves user experience and monitoring efficiency, solving problems such as cervical fatigue, cable entanglement, and monitoring interruption that are common with existing ultrasound fetal heart monitors.

[0014] This utility model provides a split-type ultrasonic fetal heart monitor, including a main unit and a display unit arranged separately. The main unit and the display unit are connected wirelessly. The main unit and the display unit are fixedly positioned and connected to each other by magnetic attraction.

[0015] Furthermore, the host unit includes a host front shell, and the display unit includes a display rear shell; the inner wall of the display rear shell is provided with a first magnet or a first ferromagnetic metal block, and the inner wall of the host front shell is provided with a second magnet; or the inner wall of the display rear shell is provided with a first magnet, and the inner wall of the host front shell is provided with a second ferromagnetic metal block.

[0016] Furthermore, a fitting structure is provided between the host unit and the display unit for surface bonding connection by embedding. The fitting structure uses magnetic attraction to achieve fixed positioning connection between the host unit and the display unit.

[0017] Furthermore, the interlocking structure includes a first concave surface on the outer wall of the rear shell of the display screen and a second convex surface on the outer wall of the front shell of the host computer. The first magnet or the first ferromagnetic metal block on the inner wall of the rear shell of the display screen is arranged in a corresponding manner to the first concave surface, and the second magnet or the second ferromagnetic metal block on the inner wall of the front shell of the host computer is arranged in a corresponding manner to the second convex surface. Alternatively, the interlocking structure includes a first convex surface on the outer wall of the rear shell of the display screen and a second concave surface on the outer wall of the front shell of the host computer. The first magnet or the first ferromagnetic metal block on the inner wall of the rear shell of the display screen is arranged in a corresponding manner to the first convex surface, and the second magnet or the second ferromagnetic metal block on the inner wall of the front shell of the host computer is arranged in a corresponding manner to the second concave surface.

[0018] Furthermore, the interlocking structure includes a first inclined plane on the outer wall of the rear shell of the display screen and a second inclined plane on the outer wall of the front shell of the host; the first magnet or the first ferromagnetic metal block on the inner wall of the rear shell of the display screen is arranged in a corresponding manner to the first inclined plane, and the second magnet or the second ferromagnetic metal block on the inner wall of the front shell of the host is arranged in a corresponding manner to the second inclined plane.

[0019] Furthermore, the interlocking structure also features a concave-convex structure, which achieves the first level of interlocking and the second level of interlocking through the interlocking structure.

[0020] Furthermore, the magnetic attraction positions between the host unit and the display unit are located near the bottom of the rear cover of the display and near the top of the front cover of the host unit, respectively.

[0021] Furthermore, the magnetic attraction direction between the host unit and the display unit forms an angle of 30°-60° with the vertical direction.

[0022] Furthermore, the inner wall of the rear shell of the display screen is provided with a first slot for fixing the first magnet or the first ferromagnetic metal block; the inner wall of the front shell of the host is provided with a second slot for fixing the second magnet or the second ferromagnetic metal block.

[0023] Furthermore, the inner wall of the first slot is provided with a first environmentally friendly adhesive layer for fastening the first magnet or the first ferromagnetic metal block; the inner wall of the second slot is provided with a second environmentally friendly adhesive layer for fastening the second magnet or the second ferromagnetic metal block.

[0024] Furthermore, one display unit is deployed in correspondence with one host unit; or multiple display units are deployed in correspondence with one host unit.

[0025] This utility model has the following beneficial effects:

[0026] This utility model relates to a split-type ultrasonic fetal heart monitor, where the main unit (including the ultrasonic probe) and the display unit are completely separated. The display section is isolated, and the main unit transmits fetal heart data to the display unit via wireless communication (such as radio frequency transmission, Bluetooth, Wi-Fi, 4G, or 5G), completely eliminating cable constraints. A magnetic structure (such as magnetic contacts or magnetic clips) connects the main unit and the display unit, enabling quick attachment and separation. This ensures stability during use and facilitates rapid magnetic assembly, quick separation for viewing data, separate storage of the display unit, and one-handed operation. The display unit can be held in hand, placed on a table, or on a stand, eliminating the need for manual operation. Real-time data can be viewed simply by looking down, avoiding neck fatigue. Pregnant women can freely adjust their posture for fetal heart rate measurement and viewing the display unit. The display unit can be placed at eye level or any other comfortable position, avoiding neck strain caused by prolonged head-down posture. The combination of wireless connection and magnetic attachment allows the main unit and display unit to be flexibly combined or separated, with probe operation and data viewing not interfering with each other, improving monitoring efficiency. The absence of physical cables avoids problems such as tangling and bending damage, extending the device's lifespan. The magnetic structure ensures a stable connection and prevents accidental detachment. Suitable for home self-testing or clinical monitoring, especially suitable for pregnant women in the second and third trimesters, it can be easily used in different positions such as lying down or sitting. This utility model of a split-type ultrasonic fetal heart monitor, through its innovative design of wireless split and magnetic positioning, solves the problems of neck fatigue, cable entanglement, and operation interruption associated with traditional fetal heart monitors, significantly improving user experience and monitoring efficiency, and possessing high practicality and market promotion value.

[0027] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0028] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0029] Figure 1 This is a schematic diagram of the external structure of a split-type ultrasonic fetal heart monitor according to a preferred embodiment of the present invention;

[0030] Figure 2 This is a cross-sectional structural diagram of a split-type ultrasonic fetal heart monitor according to a preferred embodiment of the present invention;

[0031] Figure 3 This is a cross-sectional structural diagram of the fitted structure of a preferred embodiment of the present invention;

[0032] Figure 4This is a schematic diagram of the inclined plane combination of the interlocking structure in a preferred embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the angle between the magnetic attraction direction and the vertical direction of the split-type ultrasonic fetal heart monitor according to a preferred embodiment of this utility model.

[0034] Legend:

[0035] 100. Main unit; 101. Main unit front shell; 102. Second magnet; 103. Second card slot; 104. Second environmentally friendly adhesive layer; 200. Display unit; 201. Display unit rear shell; 202. First magnet; 203. First card slot; 204. First environmentally friendly adhesive layer; 300. Fitting structure; 301. First concave surface; 302. Second convex surface; 303. First convex surface; 304. Second concave surface; 400. Concave-convex structure. Detailed Implementation

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0037] Figure 1 This is a schematic diagram of the external structure of a split-type ultrasonic fetal heart monitor according to a preferred embodiment of the present invention; Figure 2 This is a cross-sectional structural diagram of a split-type ultrasonic fetal heart monitor according to a preferred embodiment of the present invention; Figure 3 This is a cross-sectional structural diagram of the fitted structure of a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the inclined plane combination of the interlocking structure in a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the angle between the magnetic attraction direction and the vertical direction of the split-type ultrasonic fetal heart monitor according to a preferred embodiment of this utility model.

[0038] like Figure 1 and Figure 2As shown, the split-type ultrasound fetal heart monitor of this embodiment includes a main unit 100 and a display unit 200 arranged separately. The main unit 100 and the display unit 200 are connected wirelessly. The main unit 100 and the display unit 200 are fixedly connected to each other by magnetic attraction. In this split-type ultrasound fetal heart monitor, the main unit 100 (including the ultrasound probe) and the display unit 200 are completely separated, that is, the display part is separated separately. The main unit 100 transmits fetal heart data to the display unit 200 through wireless communication (such as wireless radio frequency transmission, Bluetooth, Wi-Fi, 4G or 5G, etc.), completely eliminating the constraints of cables. The main unit 100 and the display unit 200 are connected by a magnetic structure (such as magnetic contacts, magnetic buckles) to achieve quick adsorption and fixation or separation, which not only ensures the stability during use, but also facilitates quick magnetic adsorption assembly, quick separation to view display data, separate storage of the display unit, and one-handed operation of the display unit. The display unit 200 can be held in the hand, placed on a table or stand. Users can view real-time data without looking down, avoiding neck fatigue. Pregnant women can freely adjust their posture for fetal heart rate measurement and viewing the display unit. The display unit 200 can be placed at eye level or any other comfortable position, avoiding neck strain caused by prolonged head-down posture. The combination of wireless connection and magnetic attraction allows the main unit 100 and the display unit 200 to be flexibly combined or separated, with probe operation and data viewing not interfering with each other, improving monitoring efficiency. The absence of physical cables avoids problems such as tangling and bending damage, extending the device's lifespan. The magnetic structure ensures a stable connection and prevents accidental detachment. It is suitable for home self-testing or clinical monitoring, especially for pregnant women in the second and third trimesters, and can be easily used in different positions such as lying down or sitting. This utility model of a split-type ultrasonic fetal heart monitor, through its innovative design of wireless split and magnetic positioning, solves the problems of neck fatigue, cable entanglement, and operation interruption associated with traditional fetal heart monitors, significantly improving user experience and monitoring efficiency, and has high practicality and market promotion value. Optionally, the main unit 100 and the display unit 200 are each equipped with independent power supplies.

[0039] like Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, the host unit 100 includes a front shell 101, and the display unit 200 includes a rear shell 201. The inner wall of the rear shell 201 is provided with a first magnet 202 or a first ferromagnetic metal block, and the inner wall of the front shell 101 is provided with a second magnet 102; or the inner wall of the rear shell 201 is provided with a first magnet 202, and the inner wall of the front shell 101 is provided with a second ferromagnetic metal block. The host unit 100 and the display unit 200 are connected by the attraction between magnets (or between a magnet and a ferromagnetic metal block), allowing for quick alignment and fixation, simplifying the usage process. Pregnant women can easily assemble or detach the unit with one hand, making it particularly suitable for those with limited mobility in the mid-to-late stages of pregnancy. Compared to traditional snap-fit ​​or plug-in structures, the magnetic attraction method eliminates physical friction, preventing loosening due to wear over long-term use and improving device reliability. The magnetic attraction method effectively solves the problems of cumbersome operation, easy detachment, and easy wear of traditional split-type fetal heart rate monitors through its advantages of rapid adsorption, stable connection, and no directional restrictions, significantly improving user experience and device durability. Optionally, the magnetic attraction force is optimized to ensure a firm fit (preventing easy separation when not monitoring) while allowing users to easily disassemble with slight force, avoiding damage from forced pulling. Optionally, if a ring or multi-point symmetrical magnet layout is used, the display unit 200 can rotate 360° to adapt to different viewing angles (such as landscape / portrait display). Optionally, the inner wall of the display back cover 201 is provided with a first magnet 202, which also allows the display back cover 201 to be magnetically adsorbed onto any magnet or ferromagnetic metal object, facilitating intuitive viewing of the display unit 200 and freeing up the hands.

[0040] like Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, a fitting structure 300 for surface-fitting connection is provided between the host unit 100 and the display unit 200 through embedding. The fitting structure 300 uses magnetic attraction to achieve fixed positioning connection between the host unit 100 and the display unit 200. A fitting structure 300 is added between the host unit 100 and the display unit 200 to achieve initial surface-to-surface alignment of the host and the display. The magnetic force enhances the connection stability through magnetic attraction. The concave and convex structure of the fitting structure 300 can guide the user to quickly align, significantly improving assembly efficiency. After fitting, the magnetic attraction makes the connection tighter, preventing misalignment or detachment caused by external forces (such as slight collisions). Pure magnetic attraction structures are prone to sliding under lateral forces, while the fitting structure can resist torsional forces through physical restraint, ensuring that the connection between the host unit 100 and the display unit 200 is not easy to loosen. The fitting surface increases the contact area, avoiding shell deformation or damage caused by concentrated force during magnetic attraction. The "click-in" sensation of the fitting structure 300 prompts the user that the connection is successful, making up for the lack of tactile feedback in pure magnetic attraction. Compared with pure magnetic attraction, which may lead to unstable connection due to magnetic attenuation after long-term use, the mechanical restraint of the fitting structure provides lasting stability. The interlocking magnetic structure, through the synergistic design of mechanical limiting and magnetic enhancement, solves the pain points of pure magnetic structures such as difficult alignment and unstable connection while retaining the flexibility of wireless split devices. It is especially suitable for medical monitoring scenarios that require frequent disassembly and assembly and have high reliability requirements, and can effectively improve user experience, structural strength and long-term durability.

[0041] like Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, the interlocking structure 300 includes a first concave surface 301 on the outer wall of the display screen rear shell 201 and a second convex surface 302 on the outer wall of the host front shell 101. The first magnet 202 or the first ferromagnetic metal block on the inner wall of the display screen rear shell 201 is arranged in a corresponding manner to the first concave surface 301, and the second magnet 102 or the second ferromagnetic metal block on the inner wall of the host front shell 101 is arranged in a corresponding manner to the second convex surface 302. Alternatively, the interlocking structure 300 includes a first convex surface 303 on the outer wall of the display screen rear shell 201 and a second concave surface 304 on the outer wall of the host front shell 101. The first magnet 202 or the first ferromagnetic metal block on the inner wall of the display screen rear shell 201 is arranged in a corresponding manner to the first convex surface 303, and the second magnet 102 or the second ferromagnetic metal block on the inner wall of the host front shell 101 is arranged in a corresponding manner to the second concave surface 304. Through the spatial correspondence of the concave-convex interlocking structure and the magnetic attraction components, a synergistic enhancement effect of mechanical positioning and electromagnetic adsorption is achieved. The first concave surface 301 and the second convex surface 302 cooperate, or the first convex surface 303 and the second concave surface 304 cooperate, to form a mechanical guiding structure, providing physical restraint in the X / Y axis plane; the corresponding arrangement of magnets inside and outside (e.g., the first concave surface 301 is provided with a first magnet 202 or a first ferromagnetic metal block on its inner side; the second convex surface 302 is provided with a second magnet 102 or a second ferromagnetic metal block on its inner side; the case where the first ferromagnetic metal block and the second ferromagnetic metal block are simultaneously arranged needs to be excluded) generates magnetic adsorption force in the Z-axis direction, forming a three-dimensional positioning network in a spatial rectangular coordinate system. In addition, the magnets on the inner side of the concave surface and the magnets on the outer side of the convex surface form a closed magnetic circuit (e.g., when the first concave surface 301 is provided with a magnet, the corresponding magnetic metal is provided on the outer side of the second convex surface 302).

[0042] like Figure 4As shown, in this embodiment, the interlocking structure 300 includes a first inclined plane on the outer wall of the display screen rear shell 201 and a second inclined plane on the outer wall of the host front shell 101. A first magnet 202 or a first ferromagnetic metal block on the inner wall of the display screen rear shell 201 is arranged correspondingly to the first inclined plane, and a second magnet 102 or a second ferromagnetic metal block on the inner wall of the host front shell 101 is arranged correspondingly to the second inclined plane. The outer wall of the display screen rear shell 201 has a first inclined plane (inclination angle θ is 30°-60°), and the outer wall of the host front shell 101 has a second inclined plane (inclination angle θ is 30°-60°). By utilizing the inclined planes in conjunction with magnetic attraction, the normal component force (Fn) generated by the inclined planes and the magnetic attraction force (Fm) form a mechanical coupling, creating a wedge-shaped self-locking structure, thereby improving the structural stability of the display screen rear shell 201 and the host front shell 101 after assembly. Optionally, a first magnet 202 is arranged on the inner side of the first inclined plane, and a second magnet 102 is arranged on the inner side of the second inclined plane; or a first ferromagnetic metal block is arranged on the inner side of the first inclined plane, and a second magnet 102 is arranged on the inner side of the second inclined plane; or a first magnet 202 is arranged on the inner side of the first inclined plane, and a second ferromagnetic metal block is arranged on the inner side of the second inclined plane. Furthermore, the simultaneous presence of the first and second ferromagnetic metal blocks should be excluded.

[0043] like Figure 3 and Figure 4 As shown in this embodiment, the interlocking structure 300 is further provided with a concave-convex structure 400, which realizes the first-level interlocking through the interlocking structure 300 and the second-level interlocking through the concave-convex structure 400. The interlocking structure 300, as the first-level interlocking structure, achieves initial positioning and docking between the host unit 100 and the display unit 200, providing basic structural guidance and forming initial physical connection stability. The concave-convex structure 400, as the second-level interlocking structure, is activated after the first-level interlocking is in place, providing higher precision mechanical locking, enhancing the integrity and stability of the connection structure, and providing dual protection to avoid the risk of single-level failure. The connection difficulty is reduced in stages, providing clear tactile feedback nodes, realizing the reasonable operation logic of "guidance first, then locking", and improving structural stability. The first-level interlocking resists the main external forces, while the second-level interlocking eliminates small displacements, working together to improve vibration resistance. The two-level interlocking structures complement each other. The large-size guiding feature of the first-level interlocking and the precise limiting feature of the second-level interlocking together construct a complete connection system, realizing a combination of macro-positioning and micro-fixation, ensuring both ease of use and reliability. It achieves controllability of the connection process, hierarchical structural stability, clear operation feedback, and system reliability.

[0044] like Figure 1 and Figure 2As shown, in this embodiment, the magnetic attraction positions between the host unit 100 and the display unit 200 are located near the bottom of the display back cover 201 and near the top of the host front cover 101, respectively. The magnetic attraction component (first magnet 202 or first ferromagnetic metal block) of the display unit 200 is located near the bottom of the display back cover 201, and the magnetic attraction component (second magnet 102 or second ferromagnetic metal block) of the host unit 100 is located near the top of the host front cover 101, forming an asymmetrical vertical arrangement. The magnetic attraction points are offset from their respective geometric centers, forming a staggered vertical attraction. The display unit 200 hangs naturally under the influence of gravity, making the magnetic surface fit more tightly with the host unit 100, improving its resistance to accidental detachment under external force. After attraction, the display unit... The 200-degree automatic tilt, especially when adhering to nearby magnetic objects, conforms to the optimal viewing angle (top-down angle) for the human eye, reducing neck flexion and fatigue risk. One-handed operation is more convenient, and detachment is easier, accommodating the hand strength characteristics of pregnant women. The layout fully utilizes the top space of the main unit 100 and the bottom space of the display unit 200, freeing up space in the middle of the device to accommodate more functional accessories (such as batteries, sensor probes, processors, etc.). Heat source components (such as the processor) can be placed in non-magnetic areas to avoid demagnetization due to high temperatures. Through clever magnetic point planning, without adding extra components, three core goals are simultaneously achieved: improved connection stability, optimized human-computer interaction, and improved space utilization. This makes it particularly suitable for health monitoring devices that need to balance medical reliability with home convenience.

[0045] like Figure 5As shown, in this embodiment, the magnetic attraction direction between the host unit 100 and the display unit 200 forms an angle of 30°-60° with the vertical direction. The angle θ between the magnetic attraction direction and the vertical direction is 30°-60° (preferably 40°, 42°, 45°, 48°, 50°, etc.). Magnets or ferromagnetic metal blocks are arranged along an inclined direction to ensure that the direction of the attraction force is consistent with the engagement direction. The magnetic attraction, engagement, and weight work synergistically to reduce the probability of the display unit 200 falling off due to external force, enhance connection stability, and prevent accidental detachment. This creates an anti-slip effect, as the inclined magnetic attraction direction keeps the host unit 100 and the display unit 200 horizontally aligned. It generates component forces in both the X / Y axis and the vertical direction (Z axis) to resist slippage or detachment caused by external forces; within the range of 30°-60°, it can effectively absorb external vibrations and reduce the risk of loosening; it can optimize the fitting and guiding performance and improve the connection success rate; the tilted magnetic attraction direction and the fitting structure (such as a slanted plane or concave-convex structure) work together to enable the device to automatically align when approaching, reducing user adjustment time; it can adapt to different usage scenarios, such as sitting / lying postures, to prevent the display unit 200 from slipping due to gravity; by optimizing the magnetic attraction direction, it improves connection stability while reducing operational fatigue. When the angle θ between the magnetic attraction direction and the vertical direction is less than 30°, the anti-slip ability of the display unit 200 decreases, and it is easily affected by lateral forces and slides. When the angle θ between the magnetic attraction direction and the vertical direction is greater than 60°, the gravity of the display unit 200 will shift and may even be outside the support range of the host unit 100, which may easily lead to structural instability and reduced pull-out resistance, making it easy to fall off due to gravity or slight external force; an excessive tilt angle may cause the magnetic attraction direction to mismatch with the fitting structure, increasing the connection adjustment time.

[0046] like Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, the inner wall of the display screen back cover 201 is provided with a first slot 203 for fixing the first magnet 202 or the first ferromagnetic metal block; the inner wall of the host front cover 101 is provided with a second slot 103 for fixing the second magnet 102 or the second ferromagnetic metal block. The slot secures magnets or ferromagnetic blocks using physical positioning (such as interference fit, snap-fit, press-fit, or gluing), avoiding damage to the housing structure from screws. The slot structure ensures magnets or ferromagnetic blocks are fixed in preset positions, preventing misalignment due to glue flow or human assembly errors, resulting in more precise magnetic pole alignment when the host unit 100 and display unit 200 are attracted. This reduces magnetic flux loss and improves attraction stability. The mechanical positioning design of the slot is more impact-resistant than simple gluing or direct magnet embedding, preventing magnets from falling off during equipment drops or vibrations. The physical fixing method of the slot (such as interference fit) is more resistant to aging than simple gluing, preventing glue failure due to temperature changes or long-term use. Magnets or ferromagnetic blocks can be directly pressed into the slot without waiting for glue to cure or tightening screws, improving production efficiency. The slot structure achieves high-precision magnet fixing through mechanical positioning, improving attraction stability, assembly efficiency, and product reliability.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the inner wall of the first slot 203 is provided with a first environmentally friendly adhesive layer 204 for fastening the first magnet 202 or the first ferromagnetic metal block; the inner wall of the second slot 103 is provided with a second environmentally friendly adhesive layer 104 for fastening the second magnet 102 or the second ferromagnetic metal block. The first environmentally friendly adhesive layer 204 on the inner wall of the first slot 203 assists in fixing the first magnet 202 or the first ferromagnetic metal block, and the second environmentally friendly adhesive layer 104 on the inner wall of the second slot 103 assists in fixing the second magnet 102 or the second ferromagnetic metal block; the physical slot provides the main mechanical limit, and the environmentally friendly adhesive layer provides secondary bonding reinforcement; the adhesive layer can absorb high-frequency vibration energy, thereby enhancing the overall impact resistance; the adhesive layer fills the gap between the slot and the magnet, and the environmentally friendly adhesive layer provides environmental sealing protection and can weaken micro-vibration noise; the environmentally friendly silicone layer, while maintaining elasticity, can also compensate for the gap changes caused by the different expansion coefficients of the metal base layer or the plastic base layer; when the mechanical slot fails, the adhesive layer can still provide holding force, and the double fixation makes the overall reliability higher.

[0048] like Figure 1 and Figure 2 As shown, in this embodiment, a display screen unit 200 is arranged correspondingly to a host unit 100.

[0049] Optionally, multiple display screen units 200 are deployed corresponding to one host unit 100. Employing a single host with multiple display screens configuration, it supports N display screen units 200 simultaneously connected to one host unit 100 (N≥2), enabling multi-view synchronous monitoring. For example, data can be simultaneously displayed on the doctor's, pregnant woman's, and family member's screens; or simultaneously monitored by midwives, obstetricians, and anesthesiologists in the delivery room. When a single display screen fails, the others continue normal monitoring. This configuration is suitable for applications such as teaching, research, and clinical teaching demonstrations.

[0050] In practice, a split-type ultrasound fetal heart monitor is provided, employing a magnetic split structure. The main unit 100 and the display unit 200 are magnetically connected, and the fetal heart signal from the main unit 100 is transmitted wirelessly to the display unit 200 for display. The display unit 200 is completely separate from the probe of the main unit 100, supporting wireless connection. Users can hold the display unit 200 or place it anywhere to view real-time data, avoiding fatigue caused by prolonged head-down viewing and operational inconvenience in the mid-to-late stages of pregnancy.

[0051] By using a separate design for the main unit probe and the smart handheld display, the data acquisition and interaction functions are physically separated. Combined with multimodal interaction and efficient energy management, this system solves the problems of operator fatigue and low data interaction efficiency of traditional fetal heart monitors. At the same time, it improves the accuracy and comfort of user self-monitoring, providing an innovative tool for home-based prenatal monitoring.

[0052] The split-type ultrasonic fetal heart monitor includes a main unit 100 and a display unit 200, which are detached and assembled using magnetic attraction. The display unit 200 includes a rear cover 201 and a front cover connected by snap-fit ​​mechanisms. The rear cover 201 is secured with a first magnet 202 and a dust plug (protective cover for the display charging port) via snap-fit. The rear cover 201 has a first slot 203 for securing the first magnet 202. A first environmentally friendly adhesive layer 204 is provided around the inner walls of the first magnet 202 and the first slot 203 for fastening the magnet. A first concave surface 301 is provided on the outer side of the rear cover 201 corresponding to the position of the first magnet 202, fitting into the curved surface of the main unit casing. The main unit 100 includes a rear casing and a front casing 101 connected to it via a snap-fit ​​mechanism. The front casing 101 has a second slot 103 for fixing a second magnet 102 at a position corresponding to the first concave surface 301. A second environmentally friendly adhesive layer 104 is provided around the inner walls of the second magnet 102 and the second slot 103 for securing the magnet. The front casing 101 also has a magnetic surface (second convex surface 302) for magnetically fixing to the first concave surface 301.

[0053] Any matters not covered in this utility model are common knowledge.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A split type ultrasonic fetal heart monitor, characterized by comprising: It includes a host unit (100) and a display unit (200) arranged separately, and the host unit (100) and the display unit (200) are connected wirelessly; The host unit (100) and the display unit (200) are fixedly positioned and connected to each other by magnetic attraction.

2. The split type ultrasonic fetal heart monitor according to claim 1, wherein The host unit (100) includes a host front cover (101), and the display unit (200) includes a display rear cover (201). The inner wall of the rear shell (201) of the display screen is provided with a first magnet (202) or a first ferromagnetic metal block, and the inner wall of the front shell (101) of the host is provided with a second magnet (102); or the inner wall of the rear shell (201) of the display screen is provided with a first magnet (202), and the inner wall of the front shell (101) of the host is provided with a second ferromagnetic metal block.

3. The split-type ultrasonic fetal heart monitor according to claim 2, characterized in that, The host unit (100) and the display unit (200) are further provided with a fitting structure (300) for surface bonding connection by embedding. The fitting structure (300) uses magnetic attraction to achieve fixed positioning connection between the host unit (100) and the display unit (200).

4. The split type ultrasonic fetal heart monitor according to claim 3, wherein The interlocking structure (300) includes a first concave surface (301) on the outer wall of the rear shell (201) of the display screen and a second convex surface (302) on the outer wall of the front shell (101) of the host computer. A first magnet (202) or a first ferromagnetic metal block on the inner wall of the rear shell (201) of the display screen is arranged correspondingly to the first concave surface (301), and a second magnet (102) or a second ferromagnetic metal block on the inner wall of the front shell (101) of the host computer is arranged correspondingly to the second convex surface (302); or The interlocking structure (300) includes a first convex surface (303) on the outer wall of the rear shell (201) of the display screen and a second concave surface (304) on the outer wall of the front shell (101) of the host. The first magnet (202) or the first ferromagnetic metal block on the inner wall of the rear shell (201) of the display screen is arranged in a corresponding manner to the first convex surface (303), and the second magnet (102) or the second ferromagnetic metal block on the inner wall of the front shell (101) of the host is arranged in a corresponding manner to the second concave surface (304).

5. The split-type ultrasonic fetal heart monitor according to claim 3, characterized in that, The interlocking structure (300) includes a first inclined plane on the outer wall of the rear shell (201) of the display screen and a second inclined plane on the outer wall of the front shell (101) of the host computer; The first magnet (202) or the first ferromagnetic metal block on the inner wall of the back cover (201) of the display screen is arranged in a corresponding manner to the first inclined plane, and the second magnet (102) or the second ferromagnetic metal block on the inner wall of the front cover (101) of the host is arranged in a corresponding manner to the second inclined plane.

6. The split type ultrasonic fetal heart monitor according to claim 4 or 5, characterized by The interlocking structure (300) is also provided with a concave-convex structure (400), which realizes the first-level interlocking through the interlocking structure (300) and the second-level interlocking through the concave-convex structure (400).

7. The split-type ultrasonic fetal heart monitor according to any one of claims 1 to 5, characterized in that, The magnetic attraction positions between the host unit (100) and the display unit (200) are located near the bottom of the rear cover (201) of the display and near the top of the front cover (101) of the host.

8. The split-type ultrasonic fetal heart monitor according to any one of claims 1 to 5, characterized in that, The magnetic attraction direction between the host unit (100) and the display unit (200) forms an angle of 30°-60° with the vertical direction.

9. The split-type ultrasonic fetal heart monitor according to any one of claims 1 to 5, characterized in that, The inner wall of the back cover (201) of the display screen is provided with a first slot (203) for fixing the first magnet (202) or the first ferromagnetic metal block. The inner wall of the front shell (101) of the main unit is provided with a second slot (103) for fixing the second magnet (102) or the second ferromagnetic metal block.

10. The split type ultrasonic fetal heart instrument according to claim 9, characterized in that, The inner wall of the first slot (203) is provided with a first environmentally friendly adhesive layer (204) for fastening the first magnet (202) or the first ferromagnetic metal block. The inner wall of the second slot (103) is provided with a second environmentally friendly adhesive layer (104) for fastening the second magnet (102) or the second ferromagnetic metal block.

Images