Blood collection push-triggering power mechanism and blood collection device using same

Abstract

Disclosed in the present invention are a blood collection push-triggering power mechanism and a blood collection device using same. The blood collection push-triggering power mechanism comprises a push-triggering integrated mechanism member, and a push-triggering channel, a potential storage channel and a launching channel which are provided on a housing and used for the assembly and movement of the push-triggering integrated mechanism member; the push-triggering integrated mechanism member comprises a push-triggering press key, a traction elastic arm, an elastic sheet and a base which are integrally and continuously arranged in sequence; a first movement control part is arranged between the traction elastic arm and the elastic sheet; and a second movement control part and a third movement control part are arranged on the base. In the present invention, a member for providing push-triggering power for the launching and cutting of a cutting part of the blood collection device is designed as the integrated push-triggering integrated mechanism member, and the push-triggering channel, the potential storage channel and the launching channel are correspondingly provided on the housing, so that assembly and corresponding movement linkage can be carried out; therefore, the launching and cutting of the cutting part of the blood collection device can be completed by simply using one push-triggering integrated mechanism member.

Description

Blood sampling pushing power mechanism and blood sampling device using the same Technical Field

[0001] The present invention relates to the technical field of blood sampling instruments, and more specifically to a blood sampling push-pull mechanism and a blood sampling device using the same. This blood sampling device uses a slashing (cutting) method for blood sampling and is primarily used for heel sampling in infants and young children, but can also be used for blood sampling in other parts of the human body. Background Art

[0002] Blood collection devices are widely used in various medical settings as medical blood collection devices. Based on the blood collection method, blood collection devices are divided into two types: puncture and incision (cutting). The puncture type uses a needle to prick the blood collection site and is mainly used for blood collection from adults' fingers. The incision type, on the other hand, uses a knife to cut the blood collection site. Because incision is less painful than a needle prick and can obtain a sufficient blood volume, it is particularly suitable for infants and young children, especially newborns, for heel blood collection.

[0003] Chinese patent CN111449660B discloses an invention patent entitled "Blood Collector", which provides a blood collector solution. Although this design has reduced the number of parts compared to existing heel blood collectors, the applicant found that its push-and-release power system is composed of three components: a trigger body 14 + a knife holder 30 + an elastic component 40. This push-and-release power system design not only has many components and is difficult to assemble, but also in the initial state, the elastic component 40 is always under stress and can easily fail before use, thereby causing the product to fail.

[0004] In view of this, how to solve the problem that the existing blood collection device has many parts, is difficult to assemble, and the elastic parts are always under stress in the initial state and easily fail before use has become the subject to be studied and solved by the present invention. Summary of the Invention

[0005] The purpose of the present invention is to provide a blood sampling pushing power mechanism and a blood sampling device using the same.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: The present invention proposes a blood sampling pushing power mechanism for providing pushing power for the cutting portion of a blood sampling device to emit and cut. The blood sampling device includes a housing having a notch on the housing for the cutting portion to extend. The invention has the following innovative features:

[0007] The blood sampling pushing and releasing power mechanism includes a pushing and releasing integrated mechanism component and a pushing and releasing channel, a charging channel, and a releasing channel provided on the housing for assembling and moving the pushing and releasing integrated mechanism component;

[0008] The push-and-shoot integrated mechanism comprises a push-and-shoot button, a pulling elastic arm, a spring sheet, and a base body, which are arranged in sequence in an integrated manner; a first motion control unit is arranged between the pulling elastic arm and the spring sheet; and a second motion control unit and a third motion control unit are arranged on the base body;

[0009] The push-and-shoot button has a guide portion, which is assembled on the push-and-shoot channel. The push-and-shoot button is a component used to withstand external pressing force and / or push-pull force and move along the push-and-shoot channel to push the first motion control part to move; the push-and-shoot button is provided with an active surface;

[0010] The first motion control part is assembled on the energy storage channel, and a passive part is provided on the first motion control part or on a portion between the traction elastic arm and the spring sheet corresponding to the active surface. The first motion control part is a component for bearing the force of the push button and moving along the energy storage channel and driving the traction elastic arm and the spring sheet to store energy. When the first motion control part passes over and leaves the energy storage channel, the first motion control part drives the seat body to move under the traction force of the traction elastic arm and the reaction force of the energy storage channel.

[0011] The second motion control part and the third motion control part are assembled on the launching channel, and the base body is a component for connecting the cutting part; when the push button is not subjected to external force, the second motion control part and the third motion control part are located in the launching channel, and when the first motion control part moves along the charging channel, the movement and rotation tendency of the base body under the elastic action of the spring is blocked by the second motion control part and the third motion control part against the launching channel, and when the first motion control part crosses and separates from the charging channel, the second motion control part and the third motion control part move along the launching channel toward the direction of the notch under the drive of the base body, and after the second motion control part crosses and separates from the launching channel, the base body moves toward one side downward relative to the notch under the torsional force of the spring and the inertial force in the direction of the leading firing channel, and accordingly the base body drives the cutting part to produce cutting in the other downward direction.

[0012] The relevant contents of the present invention are explained as follows:

[0013] 1. In the above technical solution of the present invention, in-depth research and design are carried out to solve the problems of the existing blood collector having many parts, being difficult to assemble, and the elastic parts being under stress in the initial state and easily failing before use. The main purpose is to design the parts for providing the pushing force for the cutting part of the blood collector to launch and cut as an integrated pushing and launching mechanism, and correspondingly set a pushing and launching channel, a accumulating channel, and a launching channel on the shell, so that the pushing and launching mechanism parts can be assembled and the corresponding movement linkage is achieved, and the entire blood collection pushing and launching power mechanism can be sequentially converted between the pre-launch state, the initial launch state, the end of launch state, and the final launch state, so that the cutting part of the blood collector can launch and cut with only one pushing and launching mechanism part, and this cutting has exactly the same function as the cutting of the original blood collector composed of multiple parts, and the pushing and launching button is smooth in pushing and exerting force without getting stuck; in the pre-launch state, the pushing and launching mechanism part is placed in the shell in a naturally stress-free state, and the spring in the pushing and launching mechanism part that provides the elastic force for the rotation of the seat body is not stressed, which can effectively avoid the possibility of product failure before use and ensure When the first motion control part is in the final state of firing, it can provide a sufficiently large and fast cutting force for the cutting of the cutting part, ensuring the amount of bleeding and reducing pain; when the first motion control part bears the force of the push button and moves along the energy storage channel and drives the traction elastic arm and the spring to store energy, the movement and rotation tendency of the seat body under the elastic action of the spring is first blocked, so that the deformation of the traction elastic arm and the spring is large enough, thereby storing a sufficiently large elastic force, and when the first motion control part passes over and leaves the energy storage channel, the first motion control part is in the traction force of the traction elastic arm and the energy storage channel. The seat body is driven to move under the reaction force of the channel. At this time, the traction elastic arm can provide a sufficiently large elastic force for the movement of the seat body, so that the seat body can quickly move along the firing channel to the cut, the firing power is sufficient, and the firing speed is fast; after the second control part on the seat body passes over and leaves the firing channel under the rapid driving of the traction elastic arm, the seat body will immediately rotate under the action of the shrapnel after the rotation restriction is released. The shrapnel that has stored enough elastic force before can drive the cutting part on the seat body to perform rapid rotation cutting, and the cutting force is large and fast, thereby ensuring the amount of bleeding and reducing pain.

[0014] 2. In the above technical solution, the blood sampling and pushing power mechanism is configured to sequentially switch between the pre-launch state, the initial launch state, the end of launch state and the final launch state;

[0015] In the pre-launch state, the push-and-fire integrated mechanism is placed in the housing in a naturally stress-free state, the push-and-fire button is installed in the push-and-fire channel, the first motion control part is located at the placement end of the charging channel, and the second motion control part and the third motion control part are located in the firing channel and are respectively close to both sides of the inner wall of the firing channel;

[0016] When the pre-launch state is converted to the initial launch state, the push button pushes the first motion control part to move along the charge channel under the action of an external force, the pulling elastic arm and the spring piece move synchronously and accumulate energy, and the movement and rotation tendency of the base body under the elastic action of the spring piece is blocked by the two sides of the inner wall of the launch channel;

[0017] When the launch initial state is converted to the launch final state, the push button continues to push the first motion control part to continue to move along the energy storage channel under the action of external force, and the traction elastic arm and the spring continue to move synchronously and accumulate energy, wherein the first motion control part moves to the critical end of the energy storage channel and is in a critical state to be separated;

[0018] When converting from the end-of-launch state to the final state of launch, the push button continues to push the first motion control part under the action of external force and makes the first motion control part cross the critical end of the accumulation channel. The first motion control part drives the seat body to move along the launch channel toward the direction of the cut under the traction force of the traction elastic arm and the reaction force of the accumulation channel. After the second motion control part on the seat body detaches from the launch channel, the restriction on the rotation trend of the seat body is released. Under the torsional action of the shrapnel, the seat body and the cutting part on the seat body rotate and cut at the cut.

[0019] The orderly transition of various states enables the blood collection device to be used for incision and blood collection easily, smoothly and effectively, ensuring that the spring fragments in the push-and-release mechanism will not fail and can provide sufficient elastic force to ensure the normal progress of the blood collection operation.

[0020] 3. In the above technical solution, the first motion control part, the second motion control part, and the third motion control part are all raised cylindrical bodies, and the pushing and firing channel, the charging channel, and the firing channel are all grooves or spaces arranged on the shell. This design can make the structural design of the pushing and firing integrated mechanism, the movement of each component, and the elastic structure of the traction elastic arm and the shrapnel more scientific and reasonable, so that the entire pushing and firing process of the blood collection device is smoother and will not get stuck.

[0021] 4. In the above technical solution, the housing is provided with a first retaining wall and a second retaining wall, the space between the first retaining wall and the second retaining wall forming a launching channel, the first retaining wall is provided with a disengagement end near the notch, and the second retaining wall is provided with an abutment end near the notch;

[0022] In the pre-launch state, the second column is located in the launch channel and close to the first retaining wall, and the third column is located in the launch channel and close to the second retaining wall;

[0023] When the pre-launch state is converted to the initial launch state, the movement and rotation tendency of the seat body under the elastic action of the spring is blocked by the first retaining wall and the second retaining wall;

[0024] When the launch end state is converted to the launch final state, the second motion control part on the seat body moves away from the first retaining wall to release the restriction on the rotation tendency of the seat body, and the third motion control part moves to the abutment end and rotates in conjunction with the abutment end.

[0025] 5. In the above technical solution, with the end surface of the notch on the shell being the horizontal reference plane, the horizontal height of one of the second motion control part and the third motion control part is higher than the horizontal height of the other, so that there is a height difference between the second motion control part and the third motion control part. When converting from the pre-launch state to the initial launch state, this height difference allows the two to be better blocked by the push-and-launch channel (the first retaining wall and the second retaining wall) and will not escape prematurely; and when converting from the end-of-launch state to the final launch state, when one of them escapes the restriction of the push-and-launch channel, it can better rotate around the other under the action of the shrapnel, with a sufficiently good cutting angle and speed.

[0026] 6. In the above technical solution, an active surface is provided on the push button, and a passive portion is provided on the first motion control portion or on the portion between the traction elastic arm and the spring sheet corresponding to the active surface. When the push button is subjected to an external force, the active surface contacts and acts on the passive portion, thereby causing the push button to drive the first motion control portion to move.

[0027] 7. In the above technical solution, the active surface is arranged to be an inclined surface at least at the portion in contact with the passive portion, and the passive portion is arranged to be a curved surface at least at the portion in contact with the active surface, so that the contact portion of the active surface and the passive portion in their cross sections is in point contact. When the push button is pushed and acts to push the first motion control portion, especially when the accumulation channel is not a straight line, the active surface and the passive portion can always maintain point contact when the passive portion rotates an angle, thereby reducing friction, making the pushing process smoother while also reducing the force applied to push the push button to avoid jamming.

[0028] 8. In the above technical solution, the traction elastic arm is curved, and a curved transition portion is provided on the traction elastic arm at the connection with the first motion control part. The traction elastic arm and the transition portion are bent in different directions. Specifically, the main body of the traction elastic arm and the transition portion are arcs in opposite directions, so that when the push button is pushed, the traction elastic arm is pushed by the first motion control part, and the spring is stored, the resistance force of the traction elastic arm after being compressed will diverge and will not be concentrated on a certain point. When the first motion control part is separated from the storage channel, so that the traction elastic arm provides traction force for the movement of the seat body toward the notch, the tension of the traction elastic arm is stretched more evenly, not too large or too small, and the hand feel is better.

[0029] 9. In the above technical solution, the launch channel is arranged obliquely toward the notch, specifically, it is inclined in the direction generally toward the notch, so that the seat body can better move obliquely downward under the traction action of the traction elastic arm, and can make the process of the second motion control part disengaging and the third control part abutting against the abutting end smoother.

[0030] 10. In the above technical solution:

[0031] The push button has a push portion for bearing external pressing force and / or push-pull force;

[0032] The housing is provided with a pushing opening at a position corresponding to the pushing portion;

[0033] When the push-release portion is located at the head of the push-release button, the push-release opening is provided on the peripheral side of the housing;

[0034] When the push-release portion is located on both sides of the push-release button, the push-release opening is provided on both sides of the housing;

[0035] When the pushing portion is located at the head and both sides of the pushing button, the pushing opening is simultaneously provided at the peripheral side and both sides of the housing.

[0036] 11. In the above technical solution, the energy-accumulating channel is curved, and the bending direction of the energy-accumulating channel is set toward the notch, so that the middle position of the energy-accumulating channel is higher than the two ends. The first motion control part will first be pushed obliquely upward from the installation end of the energy-accumulating channel to the middle, and then pushed obliquely downward from the middle to the critical end, so that the energy-accumulating and releasing process of the traction elastic arm and the spring sheet is more reasonable, and the operation feel is better.

[0037] 12. In the above technical solution, the shell includes an upper shell and a lower shell, and the pushing channel, the charging channel, and the launching channel are arranged on either or both of the upper shell and the lower shell.

[0038] 13. In the present invention, the opening direction of the notch is the direction in which the cutting portion extends.

[0039] 14. In addition, the term "and / or" in this application means three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution in which both A and B are satisfied.

[0040] Due to the application of the above scheme, the present invention has the following advantages and effects compared with the prior art:

[0041] 1. In the solution of the present invention, in the pre-fire state, the push-and-fire integrated mechanism is placed in the housing in a naturally stress-free state. The spring in the push-and-fire integrated mechanism that provides elastic force for the rotation of the seat body is not subjected to force, which can effectively avoid the possibility of product failure before use and ensure that a sufficiently large and fast cutting force can be provided to the cutting part in the final firing state, thereby ensuring the amount of bleeding and reducing pain.

[0042] 2. According to the solution of the present invention, when the first motion control part bears the force of the push button and moves along the energy storage channel and drives the traction elastic arm and the spring to store energy, the movement and rotation tendency of the base body under the elastic action of the spring is first blocked, so that the deformation of the traction elastic arm and the spring can be large enough, thereby storing a large enough elastic force, and the first motion control part passes over and leaves the energy storage channel. The first motion control part drives the base body to move under the traction force of the traction elastic arm and the reaction force of the energy storage channel. At this time, the traction elastic arm can provide a large enough elastic force for the movement of the base body, so that the base body can quickly move along the launch channel toward the notch, the launch power is sufficient, and the launch speed is fast.

[0043] 3. According to the solution of the present invention, after the second control part on the seat body passes over and leaves the launching channel under the rapid driving of the traction elastic arm, the seat body will immediately rotate under the action of the shrapnel after the rotation restriction is released. The shrapnel that has stored enough elastic force before can drive the cutting part on the seat body to perform rapid rotation cutting, and the cutting force is large and fast, thereby ensuring a large amount of bleeding and reducing pain.

[0044] 4. The solution of the present invention is to conduct in-depth research and design to solve the problems of the existing blood collectors, such as the large number of components, the difficulty in assembly, and the elastic components being under constant stress in the initial state and easily failing before use. The main purpose is to design the components for providing the pushing force for the cutting part of the blood collector to launch and cut as an integrated pushing and launching mechanism, and to provide a pushing and launching channel, a charging channel, and a launching channel on the shell accordingly, so that the pushing and launching mechanism components can be assembled and the corresponding movement linkage can be carried out, and the entire blood collection pushing and launching power mechanism can be sequentially converted between the pre-launch state, the initial launch state, the end of launch state, and the final launch state, so that the cutting part of the blood collector can launch and cut with only one pushing and launching mechanism component, and this cutting has exactly the same function as the cutting of the original blood collector composed of multiple parts. The pushing and launching button can be pushed and forced smoothly without getting stuck, and the shrapnel will not fail. Therefore, a novel and reasonable structural design is provided, and its technical conception is unique and ingenious, with outstanding substantial features and significant progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] FIG1 is a perspective view of the overall structure of an embodiment of the present invention;

[0046] FIG2 is an exploded view of an embodiment of the present invention;

[0047] FIG3 is a perspective view of a push-and-release mechanism according to an embodiment of the present invention;

[0048] FIG4 is a front view of a push-and-release mechanism according to an embodiment of the present invention;

[0049] FIG5 is a schematic diagram of an embodiment of the present invention in a pre-launch state;

[0050] FIG6 is a schematic diagram of an embodiment of the present invention in an initial launch state;

[0051] FIG7 is a schematic diagram of an embodiment of the present invention in a state at the end of transmission;

[0052] FIG8 is a schematic diagram of an embodiment of the present invention in the final state of launch;

[0053] FIG9 is a schematic diagram of the embodiment of the present invention driving the cutting portion to rotate and cut in the final state of firing;

[0054] FIG10 is a schematic diagram of a cutting portion of a push-release spring needle seat assembly according to an embodiment of the present invention;

[0055] FIG11 is a schematic diagram of a housing in an embodiment of the present invention.

[0056] The various parts of the above drawings are shown as follows:

[0057] 1. Housing; 101. Notch; 102. Push-opening;

[0058] 11. Push channel;

[0059] 12. Accumulation channel; 121. Placement end; 122. Critical end;

[0060] 13. Launch channel; 131. First retaining wall; 1311. Disengagement end; 132. Second retaining wall; 1321. Abutment end;

[0061] 2. Push-and-launch integrated mechanism;

[0062] 21. Push button; 210. Active surface; 2101. Inclined surface; 211. Guide portion; 212. Push portion;

[0063] 22. traction elastic arm; 221. transition portion;

[0064] 23. Shrapnel;

[0065] 24. seat; 241. second motion control unit; 242. third motion control unit;

[0066] 25. First motion control unit; 251. Passive unit; 2511. Curved surface;

[0067] 9. Cutting department. Implementation Method

[0068] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0069] Embodiment: The present invention will be clearly illustrated below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0070] The terms used herein are for describing specific embodiments only and are not intended to be limiting of the present invention. Singular forms such as "a," "the," "this," "this," and "the" as used herein also include plural forms.

[0071] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this case. They are only used to distinguish components or operations described with the same technical terms.

[0072] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct or indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0073] The terms “include”, “including”, “have”, etc. used in this document are open-ended terms, meaning including but not limited to.

[0074] Unless otherwise noted, the terms used herein generally have their ordinary meanings in the art, in the context of this application, and in the specific context. Certain terms used to describe this application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art regarding the description of this application.

[0075] The terms "front", "back", "upper", "lower", etc. used in this article are directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection plan of this case and the specific direction during actual implementation.

[0076] The present invention aims to take into account the problems of existing blood collectors having many components, being difficult to assemble, and the elastic components being under stress in the initial state and easily failing before use, and to make targeted and ingenious improvements in design. The main purpose is to design the component used to provide pushing power for the cutting part 9 of the blood collector to launch and cut as an integrated pushing and launching mechanism component 2, and correspondingly set a pushing and launching channel 11, a charging channel 12, and a launching channel 13 on the shell 1, so that the pushing and launching mechanism component 2 can be assembled and linked to the corresponding movement, and the entire blood collection pushing and launching power mechanism can be sequentially converted between the pre-launch state, the initial launch state, the end of launch state and the final launch state. This design can also place the pushing and launching mechanism component 2 in the shell 1 in a naturally unstressed state, thereby avoiding deformation and failure of the shrapnel.

[0077] Embodiment 1, referring to Figures 1 to 4, Embodiment 1 of the present invention proposes a blood sampling pushing power mechanism for providing pushing power for the cutting part 9 of the blood collector to emit and cut. The blood collector includes a shell 1, and the shell 1 has a notch 101 for the cutting part 9 to extend.

[0078] In the first embodiment of the present invention, the blood sampling pushing and releasing power mechanism includes a pushing and releasing integrated mechanism component 2 and a pushing and releasing channel 11, a charging channel 12, and a releasing channel 13 provided on the housing 1 for assembling and moving the pushing and releasing integrated mechanism component 2;

[0079] The push-and-shoot mechanism 2 includes a push-and-shoot button 21, a pulling elastic arm 22, a spring 3, and a base 24, which are arranged in a continuous sequence. A first motion control unit 25 is provided between the pulling elastic arm 22 and the spring 3. A second motion control unit 241 and a third motion control unit 242 are provided on the base 24.

[0080] The push button 21 has a guide portion 211, which is assembled on the push channel 11. The push button 21 is used to withstand external pressing force and / or push-pull force to move along the push channel 11 and push the first motion control portion 25 to move. The push button 21 is provided with an active surface 210.

[0081] The first motion control part 25 is assembled on the energy storage channel 12. A passive part 251 is provided on the first motion control part 25 or on a portion between the traction elastic arm 22 and the spring 3 corresponding to the active surface 210. The first motion control part 25 is a component for bearing the force of the push button 21 and moving along the energy storage channel 12 to drive the traction elastic arm 22 and the spring 3 to store energy. When the first motion control part 25 passes over and leaves the energy storage channel 12, the first motion control part 25 drives the seat 24 to move under the traction force of the traction elastic arm 22 and the reaction force of the energy storage channel 12.

[0082] The second motion control part 241 and the third motion control part 242 are assembled on the firing channel 13, and the seat body 24 is a component for connecting the cutting part 9; when the push button 21 is not subjected to external force, the second motion control part 241 and the third motion control part 242 are located in the firing channel 13, and when the first motion control part 25 moves along the accumulating channel 12, the movement and rotation tendency of the seat body 24 under the elastic action of the spring 3 is pressed against the firing channel by the second motion control part 241 and the third motion control part 242. 13 and is blocked. When the first motion control part 25 passes over and breaks away from the accumulation channel 12, the second motion control part 241 and the third motion control part 242 move along the launching channel 13 toward the notch 101 under the drive of the seat body 24. After the second motion control part 241 passes over and breaks away from the launching channel 13, the seat body 24 moves toward one side downward relative to the notch 101 under the torsion of the shrapnel 23 and the inertial force in the direction of the leading launching channel 13. Correspondingly, the seat body 24 drives the cutting part 9 to produce cutting in the other downward direction.

[0083] Through the application of the above embodiment 1 of the present invention, the push-and-launch integrated mechanism component 2 has a pre-launch state, an initial launch state, a launch end state and a launch final state, and will sequentially switch between these four states. The conversion of these four states is described in detail below.

[0084] In the pre-launch state, the push-and-fire integrated mechanism 2 is placed in the shell 1 in a naturally stress-free state, the push-and-fire button 21 is installed in the push-and-fire channel 11, the first motion control part 25 is located at the placement end 121 of the accumulation channel 12, and the second motion control part 241 and the third motion control part 242 are located in the launch channel 13 and are respectively close to both sides of the inner wall of the launch channel 13.

[0085] When converting from the pre-launch state to the initial launch state, the push button 21 pushes the first motion control part 25 to move along the charging channel 12 under the action of external force, and the traction elastic arm 22 and the spring 3 move synchronously and accumulate energy. The movement and rotation tendency of the seat body 24 under the elastic action of the spring 3 is blocked by both sides of the inner wall of the firing channel 13.

[0086] When converting from the initial launch state to the final launch state, the push button 21 continues to push the first motion control part 25 to continue moving along the accumulation channel 12 under the action of external force, and the traction elastic arm 22 and the spring 3 continue to move synchronously and accumulate energy, wherein the first motion control part 25 moves to the critical end 122 of the accumulation channel 12 and is in a critical state to be separated.

[0087] When converting from the end-of-launch state to the final state of launch, the push button 21 continues to push the first motion control part 25 under the action of external force and makes the first motion control part 25 cross the critical end 122 of the accumulation channel 12. The first motion control part 25 drives the seat body 24 to move along the launch channel 13 toward the notch 101 under the traction force of the traction elastic arm 22 and the reaction force of the accumulation channel 12. After the second motion control part 241 on the seat body 24 disengages from the launch channel 13, the restriction on the rotation trend of the seat body 24 is released. Under the torsion of the shrapnel 3, the seat body 24 and the cutting part 9 on the seat body 24 rotate and cut at the notch 101.

[0088] Through the implementation of the above embodiments of the present invention, in the pre-firing state, the push-and-fire mechanism 2 is placed in the housing 1 in a naturally stress-free state. The spring 3 in the push-and-fire mechanism 2 that provides elastic force for the rotation of the seat 24 is not subjected to force, which can effectively avoid the possibility of product failure before use and ensure that a sufficiently large and fast cutting force is provided to the cutting portion 9 in the final state of firing, thereby ensuring a small amount of bleeding and reducing pain.

[0089] Through the implementation of the above embodiments of the present invention, after the first motion control part 25 bears the force of the push button 21, it moves along the energy storage channel 12 and drives the traction elastic arm 22 and the spring 3 to store energy. The movement and rotation tendency of the seat body 24 under the elastic action of the spring 3 is first blocked, so that the deformation of the traction elastic arm 22 and the spring 3 is large enough, thereby storing a sufficiently large elastic force, and the first motion control part 25 passes over and breaks away from the energy storage channel 12. The first motion control part 25 drives the seat body 24 to move under the traction force of the traction elastic arm 22 and the reaction force of the energy storage channel 12. At this time, the traction elastic arm 22 can provide a sufficiently large elastic force for the movement of the seat body 24, so that the seat body 24 can quickly move along the launch channel 13 toward the notch 101, and the launch power is sufficient and the launch speed is fast.

[0090] Through the implementation of the above embodiments of the present invention, after the second control part on the seat body 24 passes over and disengages from the firing channel 13 under the rapid driving of the traction elastic arm 22, the seat body 24 will immediately rotate under the action of the shrapnel 3 after the rotation restriction is released. The shrapnel 3, which has previously stored enough elastic force, can drive the cutting part 9 on the seat body 24 to perform rapid rotational cutting, and the cutting force is large and fast, thereby ensuring the amount of bleeding and reducing pain.

[0091] In another embodiment of the present invention, the first motion control part 25, the second motion control part 241, and the third motion control part 242 are all raised columns, and the pushing channel 11, the accumulating channel 12, and the launching channel 13 are all grooves or spaces arranged on the shell 1. This design can make the structural design of the pushing and launching integrated mechanism 2, the movement of each component, and the elastic structure of the traction elastic arm 22 and the shrapnel 3 more scientific and reasonable, so that the entire pushing and launching process of the blood collection device is smoother and will not get stuck.

[0092] In another embodiment, the housing 1 is provided with a first retaining wall 131 and a second retaining wall 132. The space between the first retaining wall 131 and the second retaining wall 132 constitutes a launching channel 13. The first retaining wall 131 is provided with a disengagement end 1311 at a position close to the notch 101. The second retaining wall 132 is provided with an abutment end 1321 at a position close to the notch 101.

[0093] In the pre-launch state, the second column is located in the launch channel 13 and close to the first retaining wall 131 , and the third column is located in the launch channel 13 and close to the second retaining wall 132 ;

[0094] When the pre-launch state is converted to the initial launch state, the movement and rotation tendency of the seat body 24 under the elastic action of the spring piece 3 is blocked by the first retaining wall 131 and the second retaining wall 132;

[0095] When converting from the end-of-launch state to the final launch state, the second motion control part 241 on the seat body 24 moves away from the first retaining wall 131 to release the restriction on the rotation tendency of the seat body 24, and the third motion control part 242 moves to the abutment end 1321 and rotates in cooperation with the abutment end 1321.

[0096] In another embodiment, with the end face of the shell 1 where the notch 101 is located as a horizontal reference plane, between the second motion control part 241 and the third motion control part 242, the horizontal height of one is higher than the horizontal height of the other, so that there is a height difference between the second motion control part 241 and the third motion control part 242. When converting from the pre-launch state to the initial launch state, this height difference allows both to be better blocked by the push-launch channel 11 (the first retaining wall 131 and the second retaining wall 132) and will not escape prematurely; and when converting from the end-of-launch state to the final launch state, when one of them escapes the restriction of the push-launch channel 11, it can better rotate around the other under the action of the shrapnel 3, with a sufficiently good cutting angle and speed.

[0097] In another embodiment, an active surface 210 is provided on the push button 21, and a passive portion 251 is provided on the first motion control portion 25 or on a portion between the traction elastic arm 22 and the spring 3 corresponding to the active surface 210. When the push button 21 is subjected to an external force, the active surface 210 contacts and acts on the passive portion 251, thereby causing the push button 21 to drive the first motion control portion 25 to move.

[0098] Specifically, the active surface 210 is arranged to be set as an inclined surface 2101 at least at the part contacting with the passive part 251, and the passive part 251 is arranged to be set as a curved surface 2511 at least at the part contacting with the active surface 210, so that the contact part of the active surface 210 and the passive part 251 in their cross sections is in point contact, so that when the push button 21 is pushed and the first motion control part 25 is pushed, especially when the accumulation channel 12 is not a straight line, the active surface 210 and the passive part 251 can always maintain point contact when the passive part 251 rotates an angle, thereby reducing friction, making the pushing process smoother, and also reducing the force applied to push the push button 21 to avoid jamming.

[0099] In the first embodiment of the present invention, the traction elastic arm 22 is curved, and a curved transition portion 221 is provided on the traction elastic arm 22 at the connection with the first motion control part 25. The traction elastic arm 22 and the transition portion 221 are curved in different directions. Specifically, the main body of the traction elastic arm 22 and the transition portion 221 are opposite arcs, so that when the push button 21 is pushed, the traction elastic arm 22 is pushed by the first motion control part 25, and the spring 3 is stored, the force resisting after the traction elastic arm 22 is compressed will diverge and will not be concentrated on a certain point. When the first motion control part 25 disengages from the storage channel 12, so that the traction elastic arm 22 provides traction force for the movement of the seat body 24 toward the notch 101, the tension of the traction elastic arm 22 is stretched more evenly, not too large or too small, and the hand feel is better.

[0100] Furthermore, the energy-accumulating channel 12 is curved, and the bending direction of the energy-accumulating channel 12 is set toward the notch 101, so that the middle position of the energy-accumulating channel 12 is higher than the two ends. The first motion control part 25 will first be pushed obliquely upward from the installation end of the energy-accumulating channel 12 to the middle, and then pushed obliquely downward from the middle to the critical end 122, so that the energy-accumulating and releasing process of the traction elastic arm 22 and the spring 3 is more reasonable, and the operation feel is better.

[0101] Specifically, the launch channel 13 is arranged obliquely toward the notch 101, specifically, it is inclined in the direction generally toward the notch 101, so that the seat body 24 can better move obliquely downward under the traction of the traction elastic arm 22, and can make the process of the second motion control part 241 disengaging and the third control part abutting against the abutting end 1321 smoother.

[0102] In another embodiment of the present invention, the push button 21 has a push portion 212 for bearing external pressing force and / or push-pull force; the housing 1 is provided with a push opening 102 at a position corresponding to the push portion 212;

[0103] When the push portion 212 is located at the head of the push button 21 , the push opening 102 is provided on the peripheral side of the housing 1 ;

[0104] When the push-release portion 212 is located on both sides of the push-release button 21 , the push-release opening 102 is provided on both sides of the housing 1 ;

[0105] When the pushing portion 212 is located at the head and both sides of the pushing button 21 , the pushing opening 102 is located at the circumference and both sides of the housing 1 .

[0106] In order to better understand the composition and function of each component in the present invention, the specific composition and use steps of the present invention will be described in detail below in conjunction with a detailed embodiment.

[0107] The blood sampling pushing and releasing power mechanism proposed in this detailed embodiment includes a pushing and releasing integrated mechanism component 2 and a pushing and releasing channel 11, a charging channel 12, and a firing channel 13 provided on the housing 1 for assembling and moving the pushing and releasing integrated mechanism component 2.

[0108] In this detailed embodiment, the structure of the housing 1 is shown in FIG11, and the housing 1 is provided with a push channel 11, a potential accumulation channel 12, and a launch channel 13; the push channel 11, the potential accumulation channel 12, and the launch channel 13 are all grooves or spaces provided on the housing 1; one end of the potential accumulation channel 12 is a placement end 121, and the other end is a critical end 122, and the potential accumulation channel 12 is curved, and the curvature direction of the potential accumulation channel 12 is set toward the notch 101; the housing 1 is provided with a first gear The wall 131, the second retaining wall 132, and the space between the first retaining wall 131 and the second retaining wall 132 constitute a launching channel 13. The first retaining wall 131 is provided with a disengagement end 1311 at a position close to the notch 101, and the second retaining wall 132 is provided with a supporting end 1321 at a position close to the notch 101. The launching channel 13 is arranged obliquely toward the notch 101; the housing 1 is also provided with a notch 101 for the cutting portion 9 to extend, and a push opening 102 located on the other side of the notch 101 for the push button 21 to move.

[0109] In this detailed embodiment, the push-and-shoot integrated mechanism 2 includes a push-and-shoot button 21, a traction elastic arm 22, a spring 3 and a base body 24 that are arranged in sequence as a whole. A first motion control part 25 is provided between the traction elastic arm 22 and the spring 3; a second motion control part 241 and a third motion control part 242 are provided on the base body 24, wherein the second motion control part 241 is away from the notch 101, and the third motion control part 242 is close to the notch 101; the first motion control part 25, the second motion control part 241, and the third motion control part 242 are all raised columnar bodies. The push button 21 is provided with a guide portion 211 assembled on the push channel 11 and a push portion 212 for bearing external pressing and / or pushing and pulling forces. The push button 21 is also provided with an active surface 210. A passive portion 251 is provided corresponding to the active surface 210 on the first motion control portion 25 or between the pulling elastic arm 22 and the spring 3. When the push button 21 is subjected to an external force, the active surface 210 contacts and acts on the passive portion 251, so that the push button 21 drives the first motion control portion 25 to move; the active surface 210 is arranged to be provided as an inclined surface 2101 at least at the portion in contact with the passive portion 251, and the passive portion 251 is arranged to be provided as a curved surface 2511 at least at the portion in contact with the active surface 210, so that the contact portion between the active surface 210 and the passive portion 251 in their cross sections is point contact. The traction elastic arm 22 is curved. A curved transition portion 221 is provided on the traction elastic arm 22 at the connection with the first motion control portion 25 . The traction elastic arm 22 and the transition portion 221 are curved in different directions.

[0110] The blood sampling and pushing power mechanism in this detailed embodiment is configured to have a pre-launch state, a launch initial state, a launch end state and a launch final state, and can be converted from the pre-launch state to the launch initial state, from the launch initial state to the launch end state, and from the launch end state to the launch final state in sequence.

[0111] In the initial state, the push button 21 and the first motion control part 25 are respectively placed in the corresponding channels of the lower cover, and the second motion control part 241 and the third motion control part 242 are respectively placed close to their respective retaining walls.

[0112] In the initial firing state, the force F applied to the inclined surface 2101 of the push button 21 pushes the first motion control portion 25 leftward, causing the spring 3 and the pull elastic arm 22 to move leftward synchronously and accumulate momentum. Under the elastic force of the spring 3, the base 24's counterclockwise rotation is prevented by the first and second retaining walls 131 and 132.

[0113] At the end of the launch, the inclined surface 2101 of the push button 21 is subjected to force F, pushing the first motion control part 25 to continue to move leftward, and the spring 3 and the pulling elastic arm 22 move leftward synchronously and accumulate momentum. The first motion control part 25 has moved to the end of the channel and is in a critical state ready for separation.

[0114] In the final state of firing, the inclined surface 2101 of the push button 21 is subjected to force F, pushing the first motion control portion 25 to continue moving to the left. After passing the critical state, the first motion control portion 25 begins to move toward the downward opening due to the traction of the elastic arm 22 and the reaction force of the channel of the first motion control portion 25. Because the base 24 is integrated with the first motion control portion 25, it also moves along the firing channel 13 formed by the first retaining wall 131 and the second retaining wall 132, which is inclined downward and to the left. When the second motion control portion 241 is separated from the first retaining wall 131, the torsional force of the spring 23 and the inertial force in the direction of the firing channel 13 before it moves the base 24 to the lower left relative to the notch 101. Accordingly, the base 24 drives the cutting portion 9 to produce a downward and rightward cutting motion.

[0115] In this way, the seat body 24 can realize the function of first downward and then rotating under the action of this integrated pushing power mechanism, thereby driving the cutting part 9 to cut, wherein as shown in Figure 2, the cutting part 9 is a blade, and the blade cuts by notching.

[0116] Embodiment 2. Embodiment 2 of the present invention discloses a blood sampling device that utilizes the blood sampling and pushing power mechanism described in Embodiment 1. This blood sampling device utilizes a slashing (cutting) blood sampling method and is primarily used for sampling blood from the heels of infants and young children, but can also be used for sampling blood from other parts of the human body.

[0117] With respect to the above embodiment, possible variations of the present invention are described as follows:

[0118] 1. In the above embodiment, the second motion control unit 241 and the third motion control unit 242 are arranged so that the second motion control unit 241 is higher than the third motion control unit 242, and the seat body 24 rotates around the third motion control unit 242 after the second motion control unit 241 is separated from the launching channel 13; the present invention is not limited to this, and it can also be designed that the second motion control unit 241 is lower than the third motion control unit 242, and the seat body 24 rotates around the third motion control unit 242 after the second motion control unit 241 is separated from the launching channel 13.

[0119] 2. In the above embodiments, the housing 1 includes an upper shell and a lower shell, and one or more of the pushing and firing channel 11, the accumulating channel 12, and the firing channel 13 are located on either the upper shell or the lower shell, or one or more of the pushing and firing channel 11, the accumulating channel 12, and the firing channel 13 are located on both the upper shell and the lower shell. For example, as shown in FIG11 , the pushing and firing channel 11, the accumulating channel 12, and the firing channel 13 can all be located on the lower shell. Since the cutting portion 9 needs to be installed on one side of the base body 24 in the structure shown in the figure, the firing channel 13 only needs to be located on the lower shell. Alternatively, the firing channel 13 can be designed to be located only on the lower shell, while the pushing and firing channel 11 and the accumulating channel 12 are located on both the upper shell and the lower shell.

[0120] 3. In the above embodiment, the push button 21 has a push portion 212 for withstanding external pressing and / or pushing and pulling forces. Correspondingly, the housing 1 is provided with a push opening 102 at a position corresponding to the push portion 212. The present invention is not limited to the structure of FIG11 regarding the positions of the push portion 212 and the push opening 102. When the push portion 212 is located at the head of the push button 21, the push opening 102 is provided on the circumference of the housing 1; when the push portion 212 is located on both sides of the push button 21, the push opening 102 is provided on both sides of the housing 1; when the push portion 212 is located at both the head and both sides of the push button 21, the push opening 102 is provided on both the circumference and both sides of the housing 1.

[0121] 4. In the above embodiment, a curved transition portion 221 is provided on the traction elastic arm 22 at the connection with the first motion control portion 25. The present invention is not limited thereto, and the transition portion 221 may also be in a rectangular or oblong shape.

[0122] 5. In the above embodiments, the notch 101 can be an open opening, or it can be a portion that is not opened before use and is opened only when in use, or a film can be provided at the position where the cutting portion 9 extends, and when the cutting portion 9 extends from the notch 101, the film is first cut and then the blood collection portion is cut.

[0123] 6. In the above embodiments, the cutting portion 9 is a blade, but the present invention is not limited thereto. The cutting portion 9 may also be a sharp object such as a needle that can be used to cut human skin.

[0124] 7. In the above embodiment, the cutting portion 9 is fixedly connected to the base body by assembly. Alternatively, the cutting portion 9 may be integrated with the base body 24 to ensure that the cutting portion 9 has a certain hardness and sharpness, and can also be used for blood collection.

[0125] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A blood sampling pushing power mechanism, used for providing pushing power for the cutting part (9) of a blood sampling device to emit and cut, the blood sampling device comprising a housing (1), the housing (1) having a notch (101) for the cutting part (9) to extend, characterized in that: The blood sampling pushing and firing power mechanism comprises a pushing and firing integrated mechanism component (2) and a pushing and firing channel (11), a potential accumulation channel (12), and a firing channel (13) provided on the housing (1) for assembling and moving the pushing and firing integrated mechanism component (2); The push-and-shoot integrated mechanism (2) comprises a push-and-shoot button (21), a pulling elastic arm (22), a spring sheet (23) and a seat body (24) which are arranged in sequence in an integrated manner; a first motion control part (25) is arranged between the pulling elastic arm (22) and the spring sheet (23); a second motion control part (241) and a third motion control part (242) are arranged on the seat body (24); The push-and-shoot button (21) has a guide portion (211), the guide portion (211) is assembled on the push-and-shoot channel (11), and the push-and-shoot button (21) is a component used to withstand external pressing force and / or push-pull force, move along the push-and-shoot channel (11) and push the first motion control portion (25) to move; the push-and-shoot button (21) is provided with an active surface (210); The first motion control part (25) is mounted on the potential accumulation channel (12), and a passive part (251) is arranged on the first motion control part (25) or on a portion between the traction elastic arm (22) and the spring sheet (23) corresponding to the active surface (210). The first motion control part (25) is a part used to bear the force of the push button (21) and then move along the potential accumulation channel (12) and drive the traction elastic arm (22) and the spring sheet (23) to accumulate potential. When the first motion control part (25) passes over and leaves the potential accumulation channel (12), the first motion control part (25) drives the seat body (24) to move under the traction force of the traction elastic arm (22) and the reaction force of the potential accumulation channel (12); The second motion control part (241) and the third motion control part (242) are mounted on the firing channel (13), and the seat body (24) is a component for connecting the cutting part (9); when the push button (21) is not subjected to an external force, the second motion control part (241) and the third motion control part (242) are located in the firing channel (13); when the first motion control part (25) moves along the potential accumulation channel (12), the movement and rotation tendency of the seat body (24) under the elastic action of the spring sheet (23) is resisted by the second motion control part (241) and the third motion control part (242) against the firing channel (13). 13), and is blocked. When the first motion control part (25) passes over and leaves the potential accumulation channel (12), the second motion control part (241) and the third motion control part (242) move along the launch channel (13) toward the notch (101) driven by the seat body (24). After the second motion control part (241) passes over and leaves the launch channel (13), the seat body (24) moves downward to one side relative to the notch (101) under the torsion of the spring piece (23) and the inertial force in the direction of the launch channel (13). Accordingly, the seat body (24) drives the cutting part (9) to produce cutting in the other downward direction.

2. A blood sampling and pushing power mechanism according to claim 1, characterized in that: The blood sampling and pushing power mechanism is configured to sequentially switch between a pre-launch state, an initial launch state, a final launch state, and a final launch state; In the pre-launch state, the push-and-fire integrated mechanism (2) is placed in the housing (1) in a naturally stress-free state, the push-and-fire button (21) is installed in the push-and-fire channel (11), the first motion control part (25) is located at the placement end (121) of the accumulation channel (12), and the second motion control part (241) and the third motion control part (242) are located in the launch channel (13) and are respectively close to the two sides of the inner wall of the launch channel (13); When the pre-launch state is converted to the initial launch state, the push button (21) pushes the first motion control part (25) to move along the potential accumulation channel (12) under the action of an external force, the traction elastic arm (22) and the spring sheet (23) move synchronously and accumulate potential, and the movement and rotation tendency of the seat body (24) under the elastic action of the spring sheet (23) is blocked by the two sides of the inner wall of the launch channel (13); When the initial state of firing is converted to the final state of firing, the push button (21) continues to push the first motion control part (25) to continue to move along the potential accumulation channel (12) under the action of external force, and the pulling elastic arm (22) and the spring sheet (23) continue to move synchronously and accumulate potential, wherein the first motion control part (25) moves to the critical end (122) of the potential accumulation channel (12) and is in a critical state to be separated; When the state of the end of the launch is converted to the state of the final launch, the push button (21) continues to push the first motion control part (25) under the action of external force and causes the first motion control part (25) to cross the critical end (122) of the potential accumulation channel (12). The first motion control part (25) drives the seat body (24) to move along the launch channel (13) toward the notch (101) under the traction force of the traction elastic arm (22) and the reaction force of the potential accumulation channel (12). After the second motion control part (241) on the seat body (24) is separated from the launch channel (13), the restriction on the rotation tendency of the seat body (24) is released. Under the torque of the spring sheet (23) and the inertial force in the direction of the launch channel (13), the seat body (24) moves downward to one side relative to the notch (101), and accordingly the seat body (24) drives the cutting part (9) to produce cutting toward the other side downward.

3. A blood sampling and pushing power mechanism according to claim 2, characterized in that: The first motion control part (25), the second motion control part (241), and the third motion control part (242) are all protruding columnar bodies, and the push-and-fire channel (11), the charge-accumulation channel (12), and the launch channel (13) are all grooves or spaces arranged on the housing (1).

4. A blood sampling and pushing power mechanism according to claim 3, characterized in that: The shell (1) is provided with a first retaining wall (131) and a second retaining wall (132); the space between the first retaining wall (131) and the second retaining wall (132) constitutes a launching channel (13); the first retaining wall (131) is provided with a disengagement end (1311) at a position close to the notch (101); and the second retaining wall (132) is provided with a contact end (1321) at a position close to the notch (101); In the pre-launch state, the second column is located in the launch channel (13) and close to the first retaining wall (131), and the third column is located in the launch channel (13) and close to the second retaining wall (132); When the pre-launch state is converted to the initial launch state, the movement and rotation tendency of the seat body (24) under the elastic action of the spring sheet (23) is blocked by the first retaining wall (131) and the second retaining wall (132); When the launch tail state is converted to the launch final state, the second motion control part (241) on the seat body (24) moves away from the first retaining wall (131) to release the restriction on the rotation tendency of the seat body (24), and the third motion control part (242) moves to the abutment end (1321) and rotates in cooperation with the abutment end (1321).

5. A blood sampling and pushing power mechanism according to claim 1, characterized in that: Taking the end surface of the housing (1) where the notch (101) is located as a horizontal reference plane, between the second motion control part (241) and the third motion control part (242), the horizontal height of one is higher than the horizontal height of the other.

6. A blood sampling and pushing power mechanism according to claim 1, characterized in that: The active surface (210) is arranged to be a slope (2101) at least at a portion in contact with the passive portion (251), and the passive portion (251) is arranged to be a curved surface (2511) at least at a portion in contact with the active surface (210), so that the active surface (210) and the passive portion (251) are in point contact at a contact portion of their cross sections.

7. The blood sampling and pushing power mechanism according to claim 1, characterized in that: The traction elastic arm (22) is curved, and a curved transition portion (221) is provided on the traction elastic arm (22) at the connection with the first motion control portion (25), and the traction elastic arm (22) and the transition portion (221) are curved in different directions.

8. The blood sampling and pushing power mechanism according to claim 1, characterized in that: The push button (21) has a push portion (212) for bearing external pressing force and / or push-pull force; The housing (1) is provided with a pushing opening (102) at a position corresponding to the pushing portion (212); When the push-release portion (212) is located at the head of the push-release button (21), the push-release opening (102) is arranged on the peripheral side of the housing (1); When the push-release portion (212) is located on both sides of the push-release button (21), the push-release opening (102) is provided on both sides of the housing (1); When the push-release portion (212) is located at the head and both sides of the push-release button (21), the push-release opening (102) is located at the periphery and both sides of the housing (1).

9. The blood sampling and pushing power mechanism according to claim 1, characterized in that: The launching channel (13) is arranged obliquely toward the notch (101).

10. A blood sampling and pushing power mechanism according to claim 2, characterized in that: The potential accumulation channel (12) is curved, and the curvature direction of the potential accumulation channel (12) is arranged toward the notch (101).

11. A blood sampling device, characterized in that: The blood sampling device uses the blood sampling and pushing power mechanism described in any one of claims 1 to 10.

12. A blood sampling device according to claim 11, characterized in that: The housing (1) comprises an upper shell and a lower shell, and the pushing and firing channel (11), the accumulating channel (12), and the firing channel (13) are arranged on either or both of the upper shell and the lower shell.

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