Non-invasive platelet testing device

Abstract

The application provides a platelet non-invasive testing device, which comprises a shell, a hitting assembly and a triggering assembly. The shell has a first wall; the hitting assembly is movably arranged in the shell along a first direction, and the hitting assembly comprises a hitting part for hitting the skin; the triggering assembly is mounted on the shell and is in transmission connection with the hitting assembly; the triggering assembly has a triggering state and a reset state relative to the hitting part; when the triggering assembly is in the triggering state and the reset state respectively, the hitting part is located on the same side of the first wall; along the first direction, the hitting part has a first distance and a second distance from the first wall when the triggering assembly is in the triggering state and the reset state respectively, and the first distance is greater than the second distance. The platelet non-invasive testing device can hit the skin, detect and evaluate the function of platelets through ecchymosis generated on the surface of the skin, can avoid the disadvantages of blood sampling, and thus can reduce the difficulty of detecting the function of platelets of patients who are difficult to take blood and suffer from blood diseases.

Description

Technical Field

[0001] This application relates to the field of platelet detection, and more particularly to a non-invasive platelet testing device. Background Technology

[0002] Current clinical methods for platelet function testing all require the collection of venous blood from patients. Once the venous blood sample is collected, the test must be completed within 4 hours, and transport via pneumatic logistics systems is prohibited to prevent platelet activation.

[0003] However, for children, newborns, and other groups where blood collection is difficult, as well as for patients with blood diseases, venous blood collection is technically challenging and yields poor-quality blood samples. Furthermore, current platelet function testing technologies require large sample volumes and have stringent quality requirements, making it difficult for patients with blood collection difficulties or blood diseases to undergo platelet function testing using existing technologies. Summary of the Invention

[0004] The purpose of this application is to at least address the problems of difficulty in blood collection and the inability of patients with blood diseases to undergo platelet function testing using existing technologies. This purpose is achieved through the following means: This application discloses a non-invasive platelet testing device, comprising: a housing, an impact component, and a triggering component. The housing has a first wall; the impact component is movably disposed on the housing along a first direction, the impact component including an impact portion for impacting skin; the triggering component is mounted on the housing and is pulsatorically connected to the impact component, the triggering component having a triggered state and a reset state relative to the impact portion, wherein when the triggering component is in the triggered state and the reset state, the impact portion is located on the same side of the first wall; wherein, when the triggering component is in the triggered state, along the first direction, the impact portion is located outside the housing and has a first distance from the first wall, and when the triggering component is in the reset state, the impact portion has a second distance from the first wall, the first distance being greater than the second distance, and the first direction being the length direction of the impact component.

[0005] The non-invasive platelet testing device of this application embodiment, when the triggering component switches from the reset state to the triggering state, the distance between the impact part and the first wall changes, thereby generating movement and impacting the skin. The platelet function is detected and evaluated through the bruising generated on the skin surface. This avoids the drawbacks of venous blood collection, lowers the testing threshold and reduces patient discomfort, thus reducing the difficulty of platelet function testing for patients with difficult blood collection or blood disorders.

[0006] In some embodiments, the triggering component includes an elastic member that is drively connected to the impact component. When the triggering component is in the triggering state, the elastic member has a first deformation. When the triggering component is in the reset state, the elastic member has a second deformation, and the second deformation is greater than the first deformation.

[0007] In some embodiments, the triggering component further includes a triggering member movably disposed on the housing along a second direction. When the triggering component is in the triggering state, the triggering member is separated from the impact component. When the triggering component is in the reset state, the triggering member is limitedly connected to the impact component. The first direction and the second direction are perpendicular to each other.

[0008] In some embodiments, the impact assembly further includes an impact rod, the elastic member includes a first spring and a connector, the connector is sleeved on the impact rod, and along the first direction, the first spring and the first wall are both located on the side of the connector away from the impact portion, and the first spring is clamped between the connector and the first wall.

[0009] In some embodiments, the impact rod defines a snap-fit ​​groove, the snap-fit ​​groove being circumferentially disposed on the outer peripheral wall of the impact rod, the triggering member including a trigger element movably disposed in the housing along a second direction, the trigger element including a snap-fit ​​portion, the impact rod passing through the snap-fit ​​portion, when the triggering component is in the triggering state, the snap-fit ​​portion being separated from the snap-fit ​​groove, and when the triggering component is in the reset state, the snap-fit ​​groove being snapped into the snap-fit ​​portion.

[0010] In some embodiments, the trigger further includes a guide portion connected to the snap-fit ​​portion, the housing defines a guide structure, and the trigger member further includes a second spring, the second spring being sandwiched between the guide structure and the snap-fit ​​portion, the second spring being sleeved outside a portion of the guide portion, and the other portion of the guide portion being slidably connected to the guide structure.

[0011] In some embodiments, when the triggering component is in the triggered state, the connector abuts against the latching portion along the first direction; when the triggering component is in the reset state, the connector separates from the latching portion along the first direction; and / or, the housing further has a second wall opposite to the first wall along the first direction, the impact component further includes an abutting portion, the abutting portion being circumferentially disposed around the impact rod; when the triggering component is in the triggered state, the abutting portion abuts against the second wall along the first direction; when the triggering component is in the reset state, the abutting portion separates from the second wall along the first direction.

[0012] In some embodiments, the non-invasive platelet testing device further includes a limiting member connected to the housing along the first direction. The housing also has a second wall opposite to the first wall along the first direction. When the triggering component is in the reset state, the impact portion is located inside the limiting member and abuts against the second wall. When the triggering component is in the triggering state, the impact portion is located inside the limiting member and separated from the second wall. The end face of the impact portion away from the second wall is flush with the end face of the limiting member away from the housing.

[0013] In some embodiments, the impact rod includes a protrusion, and when the triggering assembly is in the triggering state and the reset state, the protrusion is located outside the housing and on the side of the housing opposite to the limiting member.

[0014] In some embodiments, the non-invasive platelet testing device further includes a camera, a control board, and a battery, all of which are mounted on the housing; wherein the camera is used to acquire images of the skin before and after being struck by the impactor, the camera is electrically connected to the control board, and both the control board and the camera are electrically connected to the battery. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein: Figure 1 This is a schematic diagram of a non-invasive platelet testing device according to an embodiment of this application; Figure 2 for Figure 1 A partial exploded view of the non-invasive platelet testing device in the image; Figure 3 for Figure 1 Exploded view of the non-invasive platelet testing device in China; Figure 4 for Figure 1 A top view of the non-invasive platelet testing device, in which the triggering component is in the reset state; Figure 5 for Figure 1 A top view of the non-invasive platelet testing device, in which the triggering component is in the triggered state.

[0016] The labels in the attached diagram are as follows: 100. Non-invasive platelet testing device; 10. Shell; 11. First wall; 12. Second wall; 13. Guide structure; 20. Impact assembly; 21. Impact part; 22. Impact rod; 221. Snap-fit ​​groove; 222. Protrusion; 223. Abutment part; 30. Triggering component; 31. Elastic member; 311. First spring; 312. Connector; 32. Triggering component; 321. Triggering member; 3211. Snap-fit ​​part; 3212. Guide part; 322. Second spring; 40. Limiting component; 50. Camera; 60. Control board; 70. Battery; a) First direction; b) Second direction. Detailed Implementation

[0017] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0018] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0019] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure rotates, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0021] In the description of the application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Current clinical methods for platelet function testing all require the collection of venous blood from patients. Once the venous blood sample is collected, the test must be completed within 4 hours, and transport via pneumatic logistics systems is prohibited to prevent platelet activation.

[0024] However, for children, newborns, and other groups where blood collection is difficult, as well as for patients with blood diseases, venous blood collection is technically challenging and yields poor-quality blood samples. Furthermore, current platelet function testing technologies require large sample volumes and have stringent quality requirements, making it difficult for patients with blood collection difficulties or blood diseases to undergo platelet function testing using existing technologies.

[0025] To address the challenges of blood collection difficulties and the inability of patients with blood disorders to undergo platelet function testing using existing technologies, embodiments of this application propose a non-invasive platelet testing device that can impact the skin to cause bruising, thereby enabling the detection of platelet function through the state of skin bruising.

[0026] The non-invasive platelet testing device 100 of this application is described below with reference to the accompanying drawings.

[0027] Combination Figure 1 , Figure 2 , Figure 3 Figure 4 and Figure 5 As shown, the platelet non-invasive testing device 100 of this application embodiment includes: a housing 10, an impact component 20, and a trigger component 30. The housing 10 has a first wall 11; the impact component 20 is movably disposed on the housing 10 along a first direction a, and the impact component 20 includes an impact part 21 for impacting the skin; the trigger component 30 is installed on the housing 10 and is connected to the impact component 20 in a transmission manner, and the trigger component 30 has a triggered state and a reset state relative to the impact part 21. When the trigger component 30 is in the triggered state and the reset state, the impact part 21 is located on the same side of the first wall 11; wherein, when the trigger component 30 is in the triggered state, along the first direction a, the impact part 21 is located outside the housing 10 and has a first distance from the first wall 11, and when the trigger component 30 is in the reset state, the impact part 21 has a second distance from the first wall 11, the first distance being greater than the second distance, and the first direction a is the length direction of the impact component 20.

[0028] The housing 10 provides support for the movement and installation of other components, and the housing 10 can take various structural forms. For example, the housing 10 can be a one-piece molded plastic shell manufactured by injection molding. Alternatively, the housing 10 can be assembled from multiple components.

[0029] The impact portion 21 can have various shapes. For example, it can be a flat, circular end face or a slightly curved, hemispherical end face. As an example, the material of the impact portion 21 can be a biocompatible polymer material or medical-grade stainless steel.

[0030] When the trigger assembly 30 is in both the triggered and reset states, the impact part 21 is located on the same side of the first wall 11. When the trigger assembly 30 is in the triggered state, along the first direction a, the impact part 21 is located outside the housing 10 and has a first distance from the first wall 11. When the trigger assembly 30 is in the reset state, the impact part 21 has a second distance from the first wall 11. The first distance is greater than the second distance. That is, when the trigger assembly 30 switches from the reset state to the triggered state, the impact part 21 can move away from the first wall 11 and eventually be located outside the housing 10, so as to impact the skin and cause bruising. When the trigger assembly 30 switches from the triggered state to the reset state, the impact part 21 can move closer to the first wall 11, thereby providing sufficient space for the impact part 21 to impact the skin.

[0031] It is understood that when the trigger component 30 is in the reset state, the impact part 21 can be located inside or outside the housing 10. When the trigger component 30 switches between the reset state and the trigger state, it can be done manually or automatically.

[0032] During platelet testing, the impactor 21 is kept at a suitable distance from the skin, and the triggering component 30 switches from the reset state to the triggering state. The triggering component 30 drives the impactor 20 to move, causing the impactor 21 to move and impact the skin, resulting in bruising. The state of bruising allows for the examination and evaluation of platelet function. Therefore, platelet function can be tested and evaluated without blood collection or incision, thus reducing the difficulty of platelet function testing for patients with difficult blood collection or blood disorders.

[0033] The non-invasive platelet testing device 100 of this application embodiment, when the trigger component 30 switches from the reset state to the trigger state, the distance between the impact part 21 and the first wall 11 changes, thereby generating movement and impacting the skin. The platelet function is detected and evaluated through the bruising generated on the skin surface. This avoids the drawbacks of venous blood collection, lowers the testing threshold and reduces patient discomfort, thus reducing the difficulty of platelet function testing for patients with difficult blood collection or blood disorders.

[0034] Combination Figures 1 to 5 As shown, in some embodiments, the triggering component 30 includes an elastic member 31, which is connected to the impact component 20 in a transmission manner. When the triggering component 30 is in a triggered state, the elastic member 31 has a first deformation. When the triggering component 30 is in a reset state, the elastic member 31 has a second deformation, which is greater than the first deformation.

[0035] The elastic member 31 is a member capable of storing and releasing elastic potential energy. The elastic member 31 deforms when subjected to an external force and returns to its original shape after the force is removed. As an example, the elastic member 31 may include a spring, such as a coil spring, torsion spring, or leaf spring, which stores energy through its compression, tension, or torsional deformation. As further examples, the elastic member 31 may also include a component made of an elastic material, such as a rubber pad, silicone block, or elastic plastic part, which provides restoring force through its own elastic deformation. As yet another example, the elastic member 31 may also be a pneumatic or hydraulic spring, utilizing the compressibility of a gas or liquid to provide elastic force.

[0036] The transmission connection between the elastic member 31 and the impact assembly 20 means that there is a mechanical relationship between the elastic member 31 and the impact assembly 20, so that the deformation of the elastic member 31 can directly or indirectly drive or affect the movement of the impact assembly 20.

[0037] When the trigger component 30 is in the triggered state, the elastic member 31 has a first deformation. When the trigger component 30 is in the reset state, the elastic member 31 has a second deformation, which is greater than the first deformation. When the elastic member 31 switches from the triggered state to the reset state, it can store potential energy. When the elastic member 31 switches from the reset state to the triggered state, the potential energy released can drive the impact component 20 to perform an impact action.

[0038] When the trigger component 30 is in the reset state, the elastic member 31 is compressed or stretched to the second deformation, at which point a large amount of potential energy is stored inside the elastic member 31. When the trigger component 30 switches from the reset state to the trigger state, the deformation of the elastic member 31 decreases from the second deformation to the first deformation. Since the second deformation is greater than the first deformation, the potential energy of the elastic member 31 is released and converted into the kinetic energy of the impact component 20, driving the impact part 21 to move rapidly along the first direction a, completing the impact on the skin.

[0039] By incorporating the elastic member 31, the impact part 21 can be driven to move, thereby causing the impact part 21 to impact the skin. Furthermore, by utilizing the differences in deformation of the elastic member 31 under different states, the impact energy can be controlled, ensuring that the force and speed of each impact meet preset standards. This improves the accuracy and consistency of the test results, reduces the probability of detection errors or skin damage caused by unstable impact force, and thus enhances the overall performance and user experience of the platelet non-invasive testing device 100.

[0040] Combination Figures 1 to 5As shown, in some embodiments, the triggering component 30 further includes a triggering member 32, which is movably disposed on the housing 10 along the second direction b. When the triggering component 30 is in the triggering state, the triggering member 32 is separated from the impact component 20. When the triggering component 30 is in the reset state, the triggering member 32 is limitedly connected to the impact component 20. The first direction a and the second direction b are perpendicular to each other.

[0041] The trigger member 32 is a mechanical component used to limit or separate from the impact assembly 20. As an example, the trigger member 32 may be designed with a structure having a snap, protrusion or groove, which achieves the limiting by cooperating with a corresponding structure on the impact assembly 20; or, the trigger member 32 may also be a rod-shaped, plate-shaped or block-shaped component, which blocks or releases the movement path of the impact assembly 20 by moving the trigger member 32 itself.

[0042] The trigger member 32 is movably disposed in the housing 10 along the second direction b, enabling the trigger member 32 to move along a preset path, thereby achieving precise control of the impact assembly 20. For example, the trigger member 32 can be slidably installed in a guide rail or groove inside the housing 10, and driven to move along the second direction b by an external operating element (such as a button or lever); or, the trigger member 32 can also be connected to the housing 10 via a pivot or linkage mechanism, and perform swinging or translational movements in the second direction b.

[0043] When the triggering component 30 is in the triggered state, the triggering member 32 separates from the impact component 20, releasing the lock on the impact component 20 and allowing the impact component 20 to move freely to complete the impact action. Specifically, the triggering member 32 can be completely removed from the movement path of the impact component 20, for example, by sliding laterally to disengage it from the latching position; or, the triggering member 32 can also be rotated or deflected to no longer obstruct the impact component 20. When the triggering component 30 is in the reset state, the triggering member 32 is in a limiting connection with the impact component 20, thereby locking the impact component 20 and preventing it from being triggered.

[0044] By setting a trigger member 32 and enabling it to move along a second direction b perpendicular to the movement direction of the impact component 20, precise triggering and reliable locking of the impact component 20 are achieved. In the reset state, the limiting connection between the trigger member 32 and the impact component 20 effectively prevents the impact component 20 from being released under the action of the elastic member 31, thereby reducing the probability of false triggering and significantly improving the safety of the device. In the triggered state, the trigger member 32 separates from the impact component 20, allowing the impact action of the impact component 20 to be executed in a timely and accurate manner. Thus, the trigger member 32 makes the triggering operation more stable and reliable, thereby improving the accuracy of the platelet non-invasive testing device 100 and the user experience.

[0045] Combination Figures 1 to 5 As shown, in some embodiments, the impact assembly 20 further includes an impact rod 22, and the elastic member 31 includes a first spring 311 and a connector 312. The connector 312 is sleeved on the impact rod 22. Along the first direction a, the first spring 311 and the first wall 11 are both located on the side of the connector 312 away from the impact part 21, and the first spring 311 is sandwiched between the connector 312 and the first wall 11.

[0046] The impact rod 22 serves as a carrier for force transmission and guidance between the impact part 21 and the elastic member 31. As an example, the impact rod 22 is a solid or hollow cylindrical rod, and its material can be a high-strength, wear-resistant metal, such as stainless steel or aluminum alloy, to provide sufficient rigidity and durability. Furthermore, the surface of the impact rod 22 can be polished or coated to reduce motion resistance and improve the smoothness of movement.

[0047] The first spring 311 can provide or absorb elastic potential energy, thereby driving the impact assembly 20 to move. The first spring 311 can take various forms, such as a helical compression spring, a tension spring, a torsion spring, or a leaf spring. For example, a helical compression spring can be used, which stores energy through compression deformation and pushes the impact rod 22 to move upon release; alternatively, a tension spring can be used, which stores energy through stretching deformation and pulls the impact rod 22 upon contraction. Those skilled in the art will understand that parameters such as the stiffness, preload, and maximum deformation of the first spring 311 can be precisely designed according to the required impact force and stroke.

[0048] The connector 312 is a component used to mechanically connect the first spring 311 to the impact rod 22. The connector 312 can effectively transmit the elastic force of the first spring 311 to the impact rod 22. The connector 312 can be a sleeve, an annular flange, a clamp, or an integrally formed structure. For example, the connector 312 can be an annular sleeve, with its inner hole fitting with the outer diameter of the impact rod 22, and fixed to the impact rod 22 by interference fit, key connection, or threaded connection; or, the connector 312 can also be an annular boss machined on the impact rod 22. The material of the connector 312 matches the impact rod 22 or the housing 10 to improve the reliability of the connection and the stability of the overall structure.

[0049] The connector 312 is sleeved on the impact rod 22, and the connector 312 surrounds or partially surrounds the impact rod 22, so that the impact rod 22 can pass through the connector 312.

[0050] Along the first direction a, the first spring 311 and the first wall 11 are both located on the side of the connector 312 away from the impact part 21. The first spring 311 is sandwiched between the connector 312 and the first wall 11, so that the first spring 311 can be effectively compressed or stretched between the connector 312 and the first wall 11, thereby providing an elastic driving force for the movement of the impact assembly 20. The two ends of the first spring 311 abut against the connector 312 and the first wall 11 respectively, forming a confined elastic space, so that the deformation of the first spring 311 can directly act on the connector 312, thereby driving the movement of the impact rod 22.

[0051] Through the coordinated operation of the impact rod 22, the first spring 311 and the connector 312, the energy storage and release process of the elastic component 31 is more controllable, thereby making the impact of the impact part 21 on the skin highly consistent and repeatable, and thus significantly improving the reliability and detection accuracy of the platelet non-invasive testing device 100.

[0052] Combination Figures 1 to 5 As shown, in some embodiments, the impact rod 22 defines a locking groove 221, which is circumferentially disposed on the outer peripheral wall of the impact rod 22. The triggering member 32 includes a triggering element 321 movably disposed on the housing 10 along the second direction b. The triggering element 321 includes a locking portion 3211, through which the impact rod 22 passes. When the triggering component 30 is in the triggered state, the locking portion 3211 is separated from the locking groove 221. When the triggering component 30 is in the reset state, the locking groove 221 is engaged with the locking portion 3211.

[0053] The locking groove 221 is a groove structure on the impact rod 22 for engaging with the locking part 3211. As an example, the locking groove 221 can be an annular groove formed on the outer peripheral wall of the impact rod 22 by machining (such as turning or milling), or it can be an integrally formed structure by molding. The locking groove 221 can engage with the locking part 3211 to lock the impact rod 22. The locking groove 221 is arranged around the outer peripheral wall of the impact rod 22, that is, the locking groove 221 is distributed in a ring around the axis of the impact rod 22, thereby allowing the locking part 3211 to engage with the locking groove 221 from multiple angles, thus improving the convenience of assembly and the reliability of locking.

[0054] By providing an annular locking groove 221 on the impact rod 22 and cooperating with the locking part 3211 on the trigger member 321, the impact assembly 20 can be stably maintained in the reset state and quickly released in the trigger state. When the trigger assembly 30 is in the reset state, the trigger member 321 moves along the second direction b, causing its locking part 3211 to engage with the locking groove 221 on the impact rod 22. This causes the locking part 3211 to mechanically limit the impact rod 22, effectively preventing the impact rod 22 from moving along the first direction a, thereby locking the impact assembly 20 in the preset reset position and maintaining the deformation state of the elastic member 31 (such as the first spring 311), allowing the elastic member 31 to store energy.

[0055] When an impact operation is required, the trigger assembly 30 switches to the trigger state, the trigger member 321 moves along the second direction b, and the locking part 3211 disengages from the locking groove 221 on the impact rod 22. When the locking part 3211 separates from the locking groove 221, the mechanical constraint of the impact rod 22 is released. Driven by the energy stored in the elastic member 31, the impact rod 22 and the impact part 21 move along the first direction a, thereby completing the impact action on the skin.

[0056] By setting the locking groove 221 and the locking part 3211, not only can the impact rod 22 maintain a precise position in the reset state, but it can also be quickly and smoothly unlocked when triggered, ensuring the timeliness and effectiveness of the impact action. The setting of the locking groove 221 and the locking part 3211 fully utilizes the principle of mechanical limiting, improving stability and operational reliability, enabling the platelet non-invasive testing device 100 to perform its function more safely and accurately.

[0057] Combination Figures 1 to 5 As shown, in some embodiments, the trigger member 321 further includes a guide portion 3212 connected to the snap-fit ​​portion 3211, the housing 10 defines the guide structure 13, and the trigger member 32 further includes a second spring 322, which is sandwiched between the guide structure 13 and the snap-fit ​​portion 3211. The second spring 322 is sleeved on a portion of the guide portion 3212, and the other portion of the guide portion 3212 is slidably connected to the guide structure 13.

[0058] The guide portion 3212 provides directional constraint and support for the trigger element 321 during movement, enabling the trigger element 321 to move smoothly. The guide portion 3212 can be designed to be integrally formed with the snap-fit ​​portion 3211, for example, as an extension of the snap-fit ​​portion 3211, or fixedly connected to the snap-fit ​​portion 3211 by mechanical connection (such as screwing, riveting, or welding). The geometry of the guide portion 3212 can be diverse, such as cylindrical, square rod-shaped, or guide rail-shaped with a specific cross-section, to adapt to different guide structures 13.

[0059] The guide structure 13 is used to cooperate with the guide portion 3212 to jointly define the movement path of the trigger 321. The guide structure 13 can be a groove, hole, guide rail, or protrusion formed on the housing 10. For example, the guide structure 13 can be a round hole or square hole that matches the shape of the guide portion 3212, allowing the guide portion 3212 to slide inside it; or it can be a guide groove extending in a specific direction inside the housing 10 to guide the guide portion 3212.

[0060] The second spring 322 provides a restoring force or preload to the trigger 321, enabling the trigger 321 to automatically reset or maintain a stable position under specific conditions. The type of the second spring 322 can be selected according to specific requirements; for example, it can be a helical compression spring, a torsion spring, or a leaf spring. The material of the second spring 322 is usually a metallic material with good elasticity and fatigue life, such as stainless steel or spring steel.

[0061] The second spring 322 can generate a force between the guide structure 13 and the latching part 3211. When the trigger 321 moves, the second spring 322 will be compressed or stretched, thereby generating a reverse restoring force, causing the trigger 321 to return to its initial position or maintain a stable position. By sleeved the second spring 322 on the outside of the guide part 3212, the structure of the guide part 3212 can be effectively used as a support and guide for the spring, preventing the spring from bending or becoming unstable when under force.

[0062] The second spring 322 enables the trigger 321 to automatically and reliably return to its initial reset position after the external force is released, allowing the impact assembly 20 to be stably limited in the non-trigger state. This improves the impact accuracy and operational reliability of the platelet non-invasive testing device 100, and provides a guarantee for achieving accurate and repeatable non-invasive platelet function testing.

[0063] Combination Figures 1 to 5 As shown, in some embodiments, when the trigger component 30 is in the trigger state, the connector 312 abuts against the latching portion 3211 along the first direction a, and when the trigger component 30 is in the reset state, the connector 312 separates from the latching portion 3211 along the first direction a.

[0064] The connector 312 can limit the movement of the impact assembly 20. The contact between the connector 312 and the latching part 3211 refers to the physical contact between them, thereby constraining or supporting the movement of the impact assembly 20 under specific conditions. For example, the connector 312 and the latching part 3211 can be designed with complementary contact surfaces, such as planes, bevels, or arcs, to ensure stability and effective force transmission during contact. Furthermore, to ensure reliability and service life during repeated contact and separation, the connector 312 and the latching part 3211 can be made of high-strength, wear-resistant materials, such as engineering plastics or metal alloys.

[0065] The abutment relationship between the connector 312 and the locking part 3211 provides physical limits for the position of the impact component 20 in different working states. When the trigger component 30 is in the triggered state, the impact part 21 is released and moves outward along the first direction a. At this time, the abutment between the connector 312 and the locking part 3211 effectively limits the maximum stroke of the impact component 20 along the first direction a, ensuring that the impact depth of the impact part 21 impacting the skin is consistent, thereby improving the repeatability of the detection data. When the trigger component 30 is in the reset state, the connector 312 separates from the locking part 3211, eliminating unnecessary mechanical constraints and allowing the impact component 20 to reset. Thus, the embodiments of this application achieve precise control over the movement process of the impact component 20, improving the performance consistency of the platelet non-invasive testing device 100 in multiple uses.

[0066] Combination Figures 1 to 5 As shown, in some embodiments, the housing 10 also has a second wall 12 opposite to the first wall 11 along the first direction a, and the impact assembly 20 also includes an abutment portion 223, which is circumferentially disposed around the impact rod 22. When the trigger assembly 30 is in the trigger state, the abutment portion 223 abuts against the second wall 12 along the first direction a. When the trigger assembly 30 is in the reset state, the abutment portion 223 separates from the second wall 12 along the first direction a.

[0067] The second wall 12 is part of the housing 10. The second wall 12 is opposite to the first wall 11 along the first direction a, and provides a physical boundary for the movement of the impact assembly 20. The second wall 12 can be an integral structural part of the housing 10, formed by integral molding or welding, or it can be a structural component that is manufactured separately and fixed inside the housing 10 by screws, clips or adhesives.

[0068] The abutment portion 223 is a component that is arranged around the impact rod 22. The abutment portion 223 cooperates with the second wall 12 to restrict the movement of the impact rod 22 along the first direction a. The abutment portion 223 can be part of the impact rod 22, formed by integral molding or machining into an annular protrusion, or it can be a separately manufactured annular component that is fixed to the impact rod 22 by means of interference fit, key connection or threaded connection.

[0069] The contact between the abutment portion 223 and the second wall 12 refers to the physical contact between the two, thereby precisely limiting the travel of the impact rod 22. The contact surface between the abutment portion 223 and the second wall 12 can be designed as a flat surface, a conical surface, or a stepped surface to provide a stable limiting effect during contact. To reduce the impact force during impact, reduce noise, and extend the life of the components, a cushioning material, such as a rubber pad or elastomer, can also be provided in the contact area.

[0070] By abutting the second wall 12 with the abutting part 223, the maximum stroke of the impact component 20 along the first direction a can be effectively limited, ensuring that the impact depth of the impact part 21 on the skin is consistent, thereby improving the repeatability of the detection data. When the trigger component 30 is in the reset state, the abutting part 223 separates from the second wall 12, eliminating unnecessary mechanical constraints and allowing the impact component 20 to reset. Thus, the embodiments of this application achieve precise control over the movement process of the impact component 20, improving the performance consistency of the platelet non-invasive testing device 100 in multiple uses.

[0071] Combination Figures 1 to 5 As shown, in some embodiments, the platelet non-invasive testing device 100 further includes a limiting member 40. Along the first direction a, the limiting member 40 is connected to the housing 10. The housing 10 also has a second wall 12 that is opposite to the first wall 11 along the first direction a. When the triggering component 30 is in the reset state, the impact part 21 is located inside the limiting member 40 and abuts against the second wall 12. When the triggering component 30 is in the triggering state, the impact part 21 is located inside the limiting member 40 and separated from the second wall 12. The end face of the impact part 21 away from the second wall 12 is flush with the end face of the limiting member 40 away from the housing 10.

[0072] Along the first direction a, the limiting member 40 is connected to the housing 10, thereby enabling the limiting member 40 to be securely connected to the housing 10, thus improving the accuracy and repeatability of the impact action. As an example, the limiting member 40 can be firmly fixed to the inner or outer wall of the housing 10 by means of threaded connection, snap-fit ​​connection or welding; or, the limiting member 40 can also be integrally formed with a part of the housing 10, for example by injection molding or 3D printing technology, so that the limiting member 40 becomes a component of the structure of the housing 10.

[0073] The housing 10 also has a second wall 12 opposite to the first wall 11 along the first direction a. The second wall 12 can provide a clear initial position reference for the impact unit 21, so that each impact operation can start from a consistent starting point, thereby improving the consistency of impact energy and the consistency of impact depth in each impact. The second wall 12 can be a transverse partition inside the housing 10, or an annular flange protruding inward from the inner wall of the housing 10; or, the second wall 12 can also be an end face reserved in the structure of the housing 10, opposite to the first wall 11 in the first direction a.

[0074] When the trigger assembly 30 is in the reset state, the impact part 21 is located within the limiting member 40 and abuts against the second wall 12, preparing the impact part 21 for subsequent impact. When the trigger assembly 30 is in the triggered state, the impact part 21 is located within the limiting member 40 and separated from the second wall 12. The separation of the impact part 21 from the second wall 12 marks the start of the impact process, allowing it to move freely under the guidance of the limiting member 40 until it impacts the skin. When the trigger assembly 30 releases the lock on the impact assembly 20, the energy stored in the elastic member 31 is rapidly released, pushing the impact part 21 forward along the first direction a, causing it to disengage from the abutment against the second wall 12.

[0075] The end face of the impact part 21 facing away from the second wall 12 is flush with the end face of the limiting member 40 facing away from the housing 10. This ensures that when the impact part 21 reaches its maximum extension position, the end face of the impact part 21 acting on the skin is on the same plane as the end face of the limiting member 40 outside the device, thus providing a clear and repeatable impact depth and avoiding impacts that are too deep or too shallow. By precisely designing the length dimensions of the impact part 21, the impact rod 22, and the limiting member 40, when the impact part 21 moves to its end of its stroke in the triggered state, the end face of the impact part 21 facing away from the second wall 12 is exactly aligned with the end face of the impact part 21 of the limiting member 40 facing away from the housing 10.

[0076] In the non-operating state, the impact part 21 can be effectively housed inside the limiting member 40 and abut against the second wall 12, thereby preventing the impact part 21 from being directly exposed to the external environment and protecting it. Through the initial positioning of the second wall 12 and the flush alignment of the end face of the impact part 21 with the end face of the limiting member 40, precise control of the stroke of the impact part 21 can be achieved, improving the consistency of the impact depth for each impact, and thus enhancing the stability and consistency of skin bruising formation, providing a reliable sample basis for the accurate assessment of subsequent platelet function.

[0077] Combination Figure 4 and Figure 5As shown, in some embodiments, the impact rod 22 includes an extension 222. When the trigger assembly 30 is in the trigger state and the reset state, the extension 222 is located outside the housing 10 and on the side of the housing 10 away from the limiting member 40.

[0078] The protrusion 222 provides a portion that can be accessed and operated externally. When the trigger assembly 30 is in the triggered state and the reset state, the protrusion 222 is located outside the housing 10, thereby facilitating operation of the impact rod 22 through the protrusion 222. The protrusion 222 is located on the side of the housing 10 away from the limiting member 40, which can avoid interference between the protrusion 222 and the limiting member 40 during operation, providing the user with a clear and unobstructed operating area, thereby improving the control effect of the impact rod 22.

[0079] The protrusion 222 is located outside the housing 10 and away from the limiting member 40, thereby providing the user with a convenient and unobstructed contact part, so that the user can easily operate the impact rod 22 manually, thereby improving the operation convenience and reset efficiency of the platelet non-invasive testing device 100 of this embodiment.

[0080] Combination Figures 1 to 5 As shown, in some embodiments, the platelet non-invasive testing device 100 further includes a camera 50, a control board 60, and a battery 70, all of which are mounted on the housing 10. The camera 50 is used to collect images of the skin before and after being struck by the impact part 21. The camera 50 is electrically connected to the control board 60, and both the control board 60 and the camera 50 are electrically connected to the battery 70.

[0081] Camera 50 is a device for converting optical images into digital signals. Camera 50 is used to capture visual information about the skin before and after being struck by impact part 21. As an example, camera 50 may employ a CMOS image sensor or a CCD image sensor and may be integrated into a micro-module, or may be composed of a separate optical lens and photosensitive element.

[0082] The control board 60 is an electronic component integrating a processor, memory, and various interface circuits. It receives and processes image data captured by the camera 50. The control board 60 can be built on a microcontroller (MCU), such as an STM32 series chip, or a microprocessor-based single-board computer, such as a Raspberry Pi. The battery 70 is an energy storage device that provides power to the device. It provides independent, portable power to the camera 50 and control board 60. The battery 70 can be a rechargeable lithium-ion battery, a lithium polymer battery, or a disposable alkaline battery or zinc-manganese battery. The camera 50, control board 60, and battery 70 are all installed inside the housing 10 to achieve device integration and portability. Specific installation methods may include, but are not limited to, screw fixing, snap-fit ​​connection, adhesive bonding, or embedded installation in a pre-reserved slot. The battery 70 provides a stable power supply to the control board 60 and camera 50 via electrical connection. Typically, the voltage output from the battery 70 is converted into the specific operating voltage required by the camera 50 and the control board 60 through a power management unit (PMU) or voltage regulator circuit.

[0083] Before the impactor 21 strikes the skin, camera 50 captures an image of the skin in its original state as a baseline. After the impactor 21 strikes the skin and bruising may occur, camera 50 captures another image of the skin. By comparing the two images, the degree of bruising can be quantified. Camera 50 transmits the captured image data to control board 60 via an electrical connection. The electrical connection can be implemented using ribbon cables, flexible printed circuits (FPCs), or soldered wires, and the data transmission interface can include standard protocols such as MIPI CSI, USB, or SPI.

[0084] When preparing to impact the skin, camera 50 first captures an initial image of the skin as a baseline state before impact. Impact component 20 then impacts the skin to produce bruising. After impact, camera 50 captures an image of the same area of ​​skin again to obtain a post-impact image of the skin's state. The image data is transmitted to control board 60 via an electrical connection. Control board 60, as the core processing unit, processes and analyzes the received pre-impact and post-impact image information, such as performing image registration, difference analysis, or feature extraction. This allows for the digital recording of changes in the skin before and after impact by impact component 21, enabling quantitative analysis based on objective image data. This improves the accuracy and reliability of platelet function testing, allowing the non-invasive platelet testing device 100 of this embodiment to not only achieve non-invasive impact but also objectively evaluate and retain the impact effect, providing a solid data foundation for subsequent diagnosis and analysis.

[0085] Combination Figure 4 and Figure 5As shown, in some specific embodiments, along the first direction a, the camera 50 and the control board 60 are both located on the side of the trigger 321 close to the impact part 21, the battery 70 is located on the side of the trigger 321 away from the impact part 21, and the camera 50 is oriented in the same direction as the impact part 21.

[0086] Along the first direction a, the camera 50 and the control board 60 are both located on the side of the trigger 321 close to the impact part 21, and the battery 70 is located on the side of the trigger 321 away from the impact part 21. This allows full utilization of the internal space of the housing 10, enabling the housing 10 to support the camera 50, the control board 60 and the battery 70, and also prevents the camera 50, the control board 60 and the battery 70 from obstructing the movement of the trigger 321.

[0087] The camera 50 is aligned with the impact part 21, which enables the camera 50 to capture the bruises on the skin after the impact part 21 hits the skin, thereby enabling the camera 50 to capture complete and clear images and improve the detection imaging effect.

[0088] In some specific embodiments, the control board 60 is configured to emit image signals, including image data of the skin before and after the impact captured by the camera 50.

[0089] After processing the image data, the control board 60 sends a signal containing the image information to an external terminal device. Signal transmission can be achieved through various communication methods, such as wireless or wired communication modules like Bluetooth, Wi-Fi, USB, or cellular networks (e.g., 4G / 5G). The signal emitted by the control board 60 contains image data captured by the camera 50 before and after the skin impact. This image information can be the raw image data stream or a compressed (e.g., JPEG, PNG format) or pre-processed (e.g., contrast enhancement, region cropping) image file.

[0090] By configuring the control board 60 to emit image signals, the original / preprocessed images can be uploaded to an external terminal (e.g., a computer, tablet, hospital workstation, cloud server, etc.), where high-performance devices perform algorithm calculations, big data comparisons, and other computational tasks. This reduces the computing power requirements of the platelet non-invasive testing device 100 in this embodiment of the application, thereby reducing the hardware cost and size of the control board 60.

[0091] In some specific embodiments, the control board 60 is configured to send signals to the mobile phone to send image signals, the mobile phone can send image signals to the cloud server, and the cloud server can send detection result information to the mobile phone.

[0092] As an example, the mobile app is equipped with a mini-program for non-invasive platelet detection. The mini-program has a built-in data forwarding protocol. After the mobile phone fully receives the dual-channel skin image signals from the control board 60, it automatically performs data verification to determine if there are any packet loss or distortion issues. Once the verification is successful, the mobile phone, relying on its own 4G / 5G cellular network or local area network (Wi-Fi), encrypts and uploads the complete pre- and post-impact skin image signals to a remote cloud server. For example, the mobile phone can use the HTTPS encrypted transmission protocol to complete the uplink data transmission. In addition, the mobile phone simultaneously includes basic patient information (e.g., test number, test time, test site, etc.), achieving a one-to-one binding of image data and patient information.

[0093] After receiving the image signal forwarded by the mobile phone, the cloud server retrieves a massive database of skin bruise samples from normal individuals and a database of historical test samples from patients with platelet abnormalities. It then performs pixel-level difference comparisons between the two sets of skin images, quantitative calculations of subcutaneous bruising area, and grading analysis of bruising color depth. Combined with the algorithm model, it accurately calculates core test indicators such as platelet aggregation function and coagulation ability, generating standardized test results that can be used for clinical reference.

[0094] After the cloud server generates the test results, it sends three types of test result information—text-based test values, bruise comparison analysis report, and risk level prompts—to the mobile app via an encrypted network link. The mobile app then displays the original comparison images, quantitative test data, and health assessment conclusions in a visual format.

[0095] By offloading the high-computing-power and high-storage-requirement AI image depth analysis work to the cloud server, the control board 60 is only responsible for basic image acquisition, preprocessing and signal forwarding, which greatly reduces the hardware cost of the control board 60 and can also reduce the power consumption of the whole machine, effectively extending the battery life of the battery 70 after a single charge.

[0096] The cloud server is equipped with a large-scale clinical skin bruising sample database and an iteratively optimized AI intelligent analysis model. It can adaptively correct the data by combining the skin baseline data of different skin colors and age groups, eliminating detection errors caused by differences in human skin color and interference from external ambient light. Moreover, it can accurately quantify subtle subcutaneous bruising changes and identify minute bruising differences that are indistinguishable to the naked eye, thereby significantly improving the accuracy and sensitivity of the detection results.

[0097] By using widely available mobile phones as an intermediary for forwarding and displaying results, the overall structure of the non-invasive platelet testing device 100 can be simplified, reducing its size. Medical staff can directly use their daily work mobile phones, and patients can use their personal or home mobile phones to complete the test and view the report. The operation is simple and easy to understand, making it suitable for rapid bedside screening in hospital wards as well as for long-term home self-testing of platelets by patients with chronic diseases.

[0098] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A non-invasive platelet testing device, characterized by, include: The shell has a first wall; An impact assembly is movably disposed on the housing along a first direction, the impact assembly including an impact portion for impacting the skin; A triggering component is installed in the housing and is connected to the impact component in a driving manner. The triggering component has a trigger state and a reset state relative to the impact part. When the triggering component is in the trigger state and the reset state respectively, the impact part is located on the same side of the first wall. When the triggering component is in the triggering state, the impact part is located outside the housing and has a first distance from the first wall along the first direction. When the triggering component is in the reset state, the impact part has a second distance from the first wall. The first distance is greater than the second distance. The first direction is the length direction of the impacting component.

2. The non-invasive platelet testing device according to claim 1, characterized in that, The triggering component includes an elastic member, which is connected to the impact component in a transmission manner. When the triggering component is in the triggering state, the elastic member has a first deformation. When the triggering component is in the reset state, the elastic member has a second deformation, which is greater than the first deformation.

3. The non-invasive platelet testing device according to claim 2, characterized in that, The triggering component further includes a triggering member, which is movably disposed on the housing along the second direction. When the triggering component is in the triggering state, the triggering member is separated from the impact component. When the triggering component is in the reset state, the triggering member is limitedly connected to the impact component. The first direction and the second direction are perpendicular to each other.

4. The non-invasive platelet testing device according to claim 3, characterized in that, The impact assembly further includes an impact rod, and the elastic member includes a first spring and a connector. The connector is sleeved on the impact rod. Along the first direction, the first spring and the first wall are both located on the side of the connector away from the impact portion, and the first spring is clamped between the connector and the first wall.

5. The non-invasive platelet testing device according to claim 4, characterized in that, The impact rod defines a locking groove, which is circumferentially disposed on the outer peripheral wall of the impact rod. The triggering component includes a trigger member movably disposed in the housing along a second direction. The trigger member includes a locking portion, through which the impact rod passes. When the triggering component is in the triggering state, the locking portion is separated from the locking groove. When the triggering component is in the reset state, the locking groove is engaged with the locking portion.

6. The non-invasive platelet testing device according to claim 5, characterized in that, The trigger further includes a guide portion connected to the snap-fit ​​portion, the housing defines a guide structure, and the trigger member further includes a second spring, the second spring being sandwiched between the guide structure and the snap-fit ​​portion, the second spring being sleeved outside a portion of the guide portion, and the other portion of the guide portion being slidably connected to the guide structure.

7. The non-invasive platelet testing device according to claim 5, characterized in that, When the triggering component is in the triggered state, the connector abuts against the latching portion along the first direction; when the triggering component is in the reset state, the connector separates from the latching portion along the first direction; and / or, The housing also has a second wall opposite to the first wall along the first direction. The impact assembly further includes an abutment portion, which is circumferentially disposed around the impact rod. When the trigger assembly is in the trigger state, the abutment portion abuts against the second wall along the first direction. When the trigger assembly is in the reset state, the abutment portion separates from the second wall along the first direction.

8. The non-invasive platelet testing device according to claim 4, characterized in that, The non-invasive platelet testing device further includes a limiting member. Along the first direction, the limiting member is connected to the housing. The housing also has a second wall opposite to the first wall along the first direction. When the triggering component is in the reset state, the impact part is located inside the limiting member and abuts against the second wall. When the triggering component is in the triggering state, the impact part is located inside the limiting member and separated from the second wall. The end face of the impact part away from the second wall is flush with the end face of the limiting member away from the housing.

9. The non-invasive platelet testing device according to claim 8, characterized in that, The impact rod includes a protrusion. When the triggering component is in the triggering state and the reset state, the protrusion is located outside the housing and on the side of the housing away from the limiting member.

10. The non-invasive platelet testing device according to any one of claims 1 to 9, characterized in that, The non-invasive platelet testing device also includes a camera, a control board, and a battery. The camera, the control board, and the battery are all installed in the housing. The camera is used to collect images of the skin before and after being struck by the impactor. The camera is electrically connected to the control board, and both the control board and the camera are electrically connected to the battery.

Images