Medicine mixer with guide locking bottom plate

Through the design of the guide locking base plate, the double inclined guide and cantilever beam structure is used to solve the problems of complex operation, unstable locking and difficulty in disassembly of the drug mixer, and the accuracy and safety of the drug liquid mixing are improved.

CN223055434UActive Publication Date: 2025-07-04SHENZHEN DELDAS MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422064616.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-07-04
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

The existing drug mixer has complex operation, unstable locking and difficulty in disassembling, resulting in inaccurate mixing of the drug liquid and wasted, increasing the operation difficulty and use risks of medical staff.

Method used

The guide locking base plate design is adopted, including a double bevel guide structure and cantilever beam structure, combined with the secondary locking structure, ensuring the round head of the syringe push rod is inserted smoothly and locked firmly, simplifying operation steps and improving stability.

Benefits of technology

It significantly reduces the risk of leaking medicine liquid, improves the accuracy and synchronization of blending medicine liquid, simplifies the disassembly process, reduces the difficulty of cleaning and replacement, and improves the safety and convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a medicine mixer with a guide locking bottom plate, which comprises a first injector, a second injector and a medicine mixer shell, and a round head of an injector push rod smoothly enters a round fixing groove of the locking bottom plate through the design of a double inclined plane guide structure and a cantilever beam structure. The bottom plate and the top plate form an included angle of 2-4 degrees in the opening direction, the installation process is simple, convenient and rapid through guiding of the inclined plane, and the risk of liquid medicine leakage caused by operation force and misoperation is effectively reduced. The cantilever beam elastically deforms when being stressed to form a prolate channel, so that the round head of the push rod is ensured to be smoothly inserted and firmly locked, and the reliability of the medicine mixer is obviously improved. In addition, the locking bottom plate is provided with a secondary locking structure, bone position baffles in the vertical direction are arranged on the left side and the right side of the locking position of each push rod, the round heads of the push rods are prevented from moving left and right, the locking stability is further enhanced, and liquid medicine waste is reduced. According to the utility model, the structural design is optimized, so that the medicine mixer is high in stability, simple and convenient to operate and safe in the use process.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a medicator with a guiding and locking base plate. Background Art

[0002] In the medical industry, medicators are commonly used to mix multiple liquid drugs together. Traditional medicators usually include two or more syringes connected in parallel. When in use, the round heads of the syringe push rods need to be locked together to achieve synchronous advancement. However, there are multiple problems in the prior art during use:

[0003] 1. The locking structure is complex and inconvenient to operate: Most common medicators on the market adopt a design of convex point locking or non-locking connecting rods. Convex point locking requires bending the round head of the syringe push rod forcefully until it deforms and obliquely inserting it into the locking mechanism. This process is complex and prone to damage to the syringe push rod or leakage of the liquid medicine due to improper force. Non-locking connecting rods rely on the connecting rods to keep the locking mechanism vertical, and it is easy to deflect once stressed or touched, resulting in locking failure and affecting the accuracy of liquid mixing.

[0004] 2. The locking is not stable: The traditional locking structure is prone to loosening during use, especially when a large pressure needs to be applied during the medicating process. The locking mechanism may fail, resulting in the push rods of the mixed liquid medicine not advancing synchronously, thereby affecting the medicating effect. This not only increases the operation difficulty for medical staff but also may cause waste of liquid medicine and affect the treatment effect.

[0005] 3. Difficult to disassemble: Many existing medicators are not designed for easy disassembly. When medical staff perform cleaning or replacement after use, they often need to spend a lot of effort and are prone to misoperation during the disassembly process, resulting in leakage of the liquid medicine, increasing the use risk and cleaning difficulty.

[0006] To solve the above problems, the prior art usually attempts to improve the operation convenience and stability of the medicator by improving the locking structure or adding auxiliary fixing devices. However, these improvement schemes often bring new problems, such as complex structure, increased manufacturing cost, and cumbersome operation steps, and still fail to completely solve the pain points of medical staff in actual use.

[0007] Therefore, how to simplify the operation steps of the medicator, improve the locking stability, reduce the risk of misoperation, and facilitate disassembly and cleaning has become the technical problem to be solved by the present utility model. Summary of the Utility Model

[0008] The technical problem solved by the present utility model is to provide a medicator with a guiding and locking base plate to solve the problems of complex operation, unstable locking, and difficult disassembly of the medicator as mentioned in the above background art in view of the defects existing in the above prior art.

[0009] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0010] A medicine mixer with a guide locking base plate, comprising a first syringe, a second syringe and a medicine mixer housing, wherein the first syringe and the second syringe respectively comprise round heads for guiding syringe push rods, and further comprising a locking base plate and a double-bevel guide structure, wherein the locking base plate comprises two double-bevel guide structures matched with the round heads, and the double-bevel guide structure comprises a top plate, a cantilever beam and a circular fixing groove;

[0011] One side of the top plate is fixedly connected to the locking bottom plate through a cantilever beam so that an opening is provided between the top plate and the locking bottom plate to form a circular fixing groove. The locking bottom plate and the top plate form an angle of 0 to 30 degrees in the direction of the opening, and the locking bottom plate and the top plate are respectively provided with inclined surface features. The upper and lower portions of the opening are provided with inclined surface guides for guiding the round head of the syringe push rod to slide into the circular fixing groove.

[0012] The cantilever beam structure has elastic deformation capability when subjected to force, so that the top plate is warped and deformed to a nearly parallel state, so that the circular fixing groove forms an oblong channel to facilitate smooth insertion of the round head of the syringe push rod.

[0013] As a further solution of the utility model, the housing of the medicine mixer includes two semicircular structures, and the two semicircular structures are respectively used to clamp the syringe, and the handle of the syringe is clamped through the groove.

[0014] As a further solution of the utility model, the circular fixing groove of the locking base plate is provided with a secondary locking structure, and vertical bone position baffles are provided on the left and right sides of the locking position of each push rod to prevent the round head of the push rod from moving left and right after locking.

[0015] As a further solution of the utility model, two air avoidance structures are provided at the front end of the top plate, and the inclined surface at the front end of the air avoidance structure forms a trumpet-shaped guide to guide the round head of the push rod to smoothly insert into the circular fixing groove, and limit the left and right movement space of the round head of the push rod after locking.

[0016] As a further solution of the utility model, the top plate and the locking base plate of the locking base plate cooperate with each other when subjected to force during the assembly process, and the deformation of the inclined surface guide and the cantilever beam structure ensure that the round head of the push rod can smoothly enter the fixing groove and be firmly locked.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. Double bevel guide structure: The utility model has designed a unique double bevel guide structure. Through the bevel guides provided at the openings of the top plate and the bottom plate, the round head of the syringe push rod can smoothly enter the circular fixing groove. This design effectively reduces the force required during installation, improves the ease of operation, and significantly reduces the risk of liquid leakage caused by misoperation.

[0019] 2. Cantilever beam structure: The top plate and the bottom plate are connected by a cantilever beam. The cantilever beam has elastic deformation ability when subjected to force, so that the top plate is warped and deformed to a nearly parallel state, forming a flat and long channel, which is convenient for the round head of the push rod to be inserted smoothly. After the round head of the push rod enters the circular fixing groove, the cantilever beam returns to its original state to ensure that the round head of the push rod is firmly locked. This structure not only ensures the locking stability, but also provides convenience during the installation process, significantly improving the reliability of the mixer.

[0020] 3. Secondary locking structure: The circular fixing groove of the locking base plate is equipped with a secondary locking structure. Vertical bone baffles are provided on both sides of the locking position of each push rod to effectively prevent the round head of the push rod from moving left and right after locking. This design not only enhances the stability of locking, but also further reduces the waste of liquid medicine caused by improper operation.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 for Figure 1 Rear view schematic diagram of .

[0025] Figure 3 The utility model is a schematic diagram of the structure of the syringe and the medicine mixer housing.

[0026] Figure 4 It is a structural schematic diagram of the locking plate of the utility model.

[0027] Figure 5 This is a structural schematic diagram of the locking plate of the utility model from another perspective.

[0028] The reference numerals and names in the figures are as follows:

[0029] The first syringe 1, the second syringe 2, the drug mixer housing 3, the round head 4, the locking bottom plate 5, the double-bevel guide structure 6, the top plate 7, the cantilever beam 8, the circular fixing groove 9, the syringe push rod 10 and the bone position 11. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 —5, in the embodiment of the utility model, a drug mixer with a guide locking base plate comprises a first syringe 1, a second syringe 2 and a drug mixer housing 3, wherein the first syringe 1 and the second syringe 2 respectively comprise a round head 4 for guiding a syringe push rod 10, and further comprises a locking base plate 5 and a double-bevel guide structure 6, wherein the locking base plate 5 comprises two double-bevel guide structures 6 matched with the round head 4, and the double-bevel guide structure 6 comprises a top plate 7, a cantilever beam 8 and a circular fixing groove 9; one side of the top plate 7 is fixed to the locking base plate 5 through the cantilever beam 8 The fixed connection provides an opening between the top plate 7 and the locking bottom plate 5 and forms a circular fixing groove 9. The locking bottom plate 5 and the top plate 7 form an angle of 0 to 30 degrees in the direction of the opening, and the locking bottom plate 5 and the top plate 7 are respectively provided with inclined surface features. There are inclined surface guides at the upper and lower parts of the opening for guiding the round head 4 of the syringe push rod 10 to slide into the circular fixing groove 9. The cantilever beam 8 structure has elastic deformation ability when subjected to force, so that the top plate 7 is warped and deformed to a state close to parallel, so that the circular fixing groove 9 forms an elongated channel to facilitate the smooth insertion of the round head 4 of the syringe push rod 10.

[0032] The medicine mixer housing 3 includes two semicircular structures, which are used to clamp the syringe respectively and clamp the handle of the syringe through the slot. The circular fixing groove 9 of the locking base plate 5 is provided with a secondary locking structure, and the left and right sides of the locking position of each push rod are provided with a vertical bone position 11 baffle to prevent the push rod round head 4 from moving left and right after locking. The front end of the top plate 7 is provided with two air avoidance structures, and the inclined surface of the front end of the air avoidance structure forms a trumpet-shaped introduction to guide the push rod round head 4 to smoothly insert into the circular fixing groove 9, and limit the left and right movement space of the push rod round head 4 after locking. The top plate 7 of the locking base plate 5 and the locking base plate 5 cooperate with each other when subjected to force during the assembly process, and ensure that the push rod round head 4 can smoothly enter the fixing groove and be firmly locked through the inclined surface guidance and the deformation of the cantilever beam 8 structure.

[0033] A method for using a medicine mixer with a guide locking base plate comprises the following steps:

[0034] Step 1, providing a first syringe 1, a second syringe 2 and a drug mixer housing 3, wherein the first syringe 1 and the second syringe 2 respectively include a round head 4 for guiding a syringe push rod 10;

[0035] Step 2, clamp the syringe with the two semicircular structures of the housing 3 of the drug mixer, clamp the handle of the syringe through the slot, and fix the syringe;

[0036] Step 3, providing a locking base plate 5, the locking base plate 5 includes two double-slope guide structures 6 matched with the round head 4, the double-slope guide structure 6 includes a top plate 7, a cantilever beam 8 and a circular fixing groove 9;

[0037] Step 4, one side of the top plate 7 is fixedly connected to the bottom plate through a cantilever beam 8, so that an opening is provided between the top plate 7 and the bottom plate and a circular fixing groove 9 is formed, the bottom plate and the top plate 7 form an angle of 0 to 30 degrees in the direction of the opening, and the bottom plate and the top plate 7 are respectively provided with inclined surface features, and the upper and lower portions of the opening are provided with inclined surface guides for guiding the round head 4 of the syringe push rod 10 to slide into the circular fixing groove 9;

[0038] Step 5, the user aligns the round head 4 of the syringe push rod 10 with the opening of the locking base plate 5, and the push rod round head 4 gradually slides into the oblong channel through the double inclined surface guidance;

[0039] Step 6, under the action of the thrust, the cantilever beam 8 structure produces elastic deformation when subjected to force, causing the top plate 7 to warp and deform to a nearly parallel state, forming a flat and long channel, which facilitates the smooth insertion of the push rod round head 4;

[0040] Step 7, when the push rod round head 4 enters the circular fixing groove 9, due to the concave structure of the circular fixing groove 9, the push rod round head 4 falls into the fixing groove, and the top plate 7 returns to its original state, forming an angle of 0 to 30 degrees with the bottom plate, ensuring that the push rod round head 4 is firmly locked;

[0041] Step 8, during use, the top plate 7 and the bottom plate of the locking bottom plate 5 provide a stable locking force through the structure of the bone position 11 thereof, so as to prevent the push rod round head 4 from falling off due to external force in any direction, thereby ensuring the smooth progress of the drug mixing process;

[0042] Step 9, when the user needs to disassemble the medicine mixer, he only needs to gently pull the push rod and the locking plate, and through the elastic deformation of the top plate 7, the push rod round head 4 can be smoothly separated from the fixing groove, thereby achieving barrier-free disassembly.

[0043] In step 3, the cantilever beam 8 structure of the double inclined plane guide structure 6 is deformed when subjected to force, so that the top plate 7 is warped to a state close to parallelism, forming a flat and long channel, and returns to its original state after the push rod round head 4 slides in, ensuring that the push rod round head 4 is firmly locked. In step 4, the circular fixed groove 9 is provided with a secondary locking structure, and the left and right sides of the locking position of each push rod are provided with a vertical bone position 11 baffle to prevent the push rod round head 4 from moving left and right after locking. In step 4, the front end of the top plate 7 is provided with two air avoidance structures, and the inclined surface of the front end of the air avoidance structure forms a trumpet-shaped introduction, guiding the push rod round head 4 to smoothly insert into the circular fixed groove 9, and limiting the left and right activity space of the push rod round head 4 after locking. In step 4, the top plate 7 and the bottom plate of the locking bottom plate 5 cooperate with each other when subjected to force during the assembly process, and through the deformation of the inclined plane guide and the cantilever beam 8 structure, it is ensured that the push rod round head 4 can smoothly enter the fixed groove and be firmly locked.

[0044] Embodiment 1:

[0045] In hospital emergency rooms, multiple liquid medicines often need to be mixed quickly so that patients can be treated in time. Traditional medicine mixers in such emergency scenarios have problems such as complex operation, unstable locking, and difficult disassembly, which can easily lead to leakage of medicine or inaccurate mixing, affecting the treatment effect.

[0046] This embodiment provides a medicine mixer with a guide locking base plate, which specifically includes the following steps and operations:

[0047] Providing a medicine mixer and a syringe: First, prepare two syringes and a medicine mixer housing 3. The syringe is used to extract different liquid medicines that need to be mixed, and the medicine mixer housing 3 is used to accommodate and fix the syringe.

[0048] Install the syringe: clamp the two semicircular structures of the mixer housing 3 on the syringe, and clamp the syringe handle through the slot to ensure the stability of the syringe in the three directions of XYZ. At this time, the round heads 4 of the push rods of the two syringes are respectively aligned with the openings of the locking bottom plate 5 of the mixer.

[0049] Guide locking process: The user aligns the push rod round head 4 of the first syringe 1 with the opening of the locking bottom plate 5, and the push rod round head 4 gradually slides into the oblong channel through the double slope guide structure 6. Under the action of the thrust, the top plate 7 warps and deforms to a nearly parallel state, forming an oblong channel, which facilitates the smooth insertion of the push rod round head 4.

[0050] When the push rod round head 4 enters the circular fixing groove 9, due to the concave structure of the circular fixing groove 9, the push rod round head 4 falls into the fixing groove, and the top plate 7 returns to its original state, forming an angle of 0 to 30 degrees with the bottom plate, ensuring that the push rod round head 4 is firmly locked. Repeat this operation to lock the push rod round head 4 of the second syringe 2 on the locking bottom plate 5.

[0051] Medicine mixing process: In the application scenario of the emergency room, medical staff need to quickly push the plunger 10 of the syringe to mix the liquid medicine. Due to the double inclined plane guiding structure 6 and the cantilever beam 8 structure of the locking base plate 5, the plunger will not become loose due to external force during the pushing process, ensuring the synchronization and accuracy of liquid medicine mixing.

[0052] The double inclined plane guiding structure 6 reduces the force required for installing the plunger. Medical staff can easily complete the operation, significantly reducing the risk of liquid medicine leakage caused by improper operation.

[0053] Disassembly and cleaning: After use, medical staff only need to gently pull the plunger and the locking plate. Through the elastic deformation of the top plate 7, the round head 4 of the plunger can smoothly disengage from the fixing groove, achieving unobstructed disassembly. This design greatly simplifies the disassembly process and reduces the difficulty of cleaning and replacement.

[0054] Through the simple and clear disassembly operation, the leakage of liquid medicine caused by misoperation is avoided, improving the safety and convenience of use.

[0055] Through the description of the above specific application scenarios, this embodiment demonstrates the application effect of the medicine mixer with a guiding locking base plate 5 in emergency treatment in the emergency room. The design of this medicine mixer simplifies the operation steps, improves the locking stability, significantly reduces the risk of misoperation, and provides a structure that is convenient for disassembly and cleaning, solving many problems existing in traditional medicine mixers. This implementation method not only improves the work efficiency of medical staff, but also improves the accuracy and safety of liquid medicine mixing.

[0056] Embodiment 2:

[0057] In the hospital operating room, medical staff need to quickly mix multiple liquid medicines for use during the operation. Traditional medicine mixers have problems such as complex operation, unstable locking, and difficult disassembly, which may lead to inaccurate mixing or leakage of liquid medicine, affecting the operation effect. This embodiment provides a medicine mixer with a guiding locking plate, which solves the above problems through the double inclined plane guiding structure 6 and the cantilever beam 8 structure.

[0058] In practical applications, first, two syringes and a medicine mixer housing 3 are provided. The syringes are used to draw different liquid medicines, and the medicine mixer housing 3 is used to fix and accommodate the syringes. There are two slots in the upper half of the medicine mixer housing 3 for fixing the handles of the syringes, playing a fastening role in the Y direction. The medicine mixer housing 3 is composed of two semi-circular structures, which are closely attached to the outer shell of the syringe, fixing the syringe in the XZ direction, thereby locking the movement range of the syringe in the XYZ three directions.

[0059] During the medicine mixing process, the user aligns the round head 4 of the push rods of the two syringes with the opening of the locking plate. The locking plate includes a bottom plate, a top plate 7, side walls, and a circular fixing groove 9. One side of the top plate 7 is fixedly connected to the bottom plate through a cantilever beam 8, forming an opening with an angle of 0 to 30 degrees. The user presses the syringe push rod 10, causing the round head 4 of the push rod to slide into the circular fixing groove 9 of the locking plate under the action of the double inclined plane guiding structure 6.

[0060] During the sliding-in process of the round head 4 of the push rod, it contacts the inclined plane of the top plate 7, generating forces in the vertical and forward directions, causing the top plate 7 to warp and deform, forming an oblong channel. The round head 4 of the push rod continues to slide until it is completely above the circular fixing groove 9. Due to the concave structure of the groove position, the round head 4 drops into the fixing groove, and the top plate 7 returns to its original state, forming an angle of 0 to 30 degrees with the bottom plate, firmly locking the round head 4 of the push rod and preventing movement in the up and down directions.

[0061] During the operation, the fingers of the medical staff press the bottom plate of the locking plate, transmitting the force to the syringe push rod 10. The push rod squeezes the syringe to eject the liquid medicine. Due to the design of the double inclined plane guiding structure 6, the round head 4 of the push rod can smoothly enter the fixing groove, and the cantilever beam 8 structure of the locking plate ensures that the locking plate will not become loose under force, making the fixation of the push rod and the locking plate tighter. Even under force, the locking plate can still remain stable, ensuring the accuracy and synchronization of liquid medicine mixing.

[0062] After use, the medical staff only needs to gently pull the push rod and the locking plate. Through the elastic deformation of the top plate 7, the round head 4 of the push rod can be smoothly disengaged from the fixing groove, achieving unobstructed disassembly. This design significantly improves the convenience of disassembly, reduces the problem of liquid medicine leakage caused by misoperation, and facilitates cleaning and replacement operations.

[0063] This embodiment demonstrates the superior performance of the medicine mixer with a guiding locking plate in an actual scenario through its application in the operating room. The design of this medicine mixer not only simplifies the operation steps, improves the locking stability, but also significantly reduces the risk of misoperation, and provides a structure that is convenient for disassembly and cleaning.

[0064] In this utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0065] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A medicament mixer with a guiding and locking base plate, comprising a first syringe, a second syringe and a mixer housing. The first syringe and the second syringe respectively include round heads for guiding the syringe plungers, characterized in that, It also includes a locking base plate and a double-bevel guiding structure. The locking base plate includes two double-bevel guiding structures that cooperate with the round head. The double-bevel guiding structure includes a top plate, a cantilever beam, and a circular fixing groove; One side of the top plate is fixedly connected to the locking base plate through a cantilever beam, so that there is an opening between the top plate and the locking base plate to form a circular fixing groove. The locking base plate and the top plate form an angle of 0 to 30 degrees in the opening direction, and the locking base plate and the top plate are respectively provided with bevel features. There are bevel guides above and below the opening to guide the round head of the syringe plunger to slide into the circular fixing groove; The cantilever beam structure has the ability of elastic deformation when stressed, so that the top plate warps and deforms to a nearly parallel state, and the circular fixing groove forms an oblong channel to facilitate the smooth insertion of the round head of the syringe plunger.

2. The medicament mixer with a guiding and locking bottom plate according to claim 1, characterized in that, The medicating device housing includes two semi-circular structures, which are respectively used to clamp the syringe and clamp the handle of the syringe through a slot.

3. The medicament mixer with a guiding and locking bottom plate according to claim 1, characterized in that, The circular fixing groove of the locking base plate is provided with a secondary locking structure. Vertical rib baffles are provided on both the left and right sides of the locking position of each plunger to prevent the round head of the plunger from moving left and right after locking.

4. The medicament mixer with a guiding and locking bottom plate according to claim 1, characterized in that, The front end of the top plate is provided with two clearance structures. The bevel at the front end of the clearance structure forms a flared introduction to guide the round head of the plunger to smoothly insert into the circular fixing groove and limit the left and right movement space of the round head of the plunger after locking.

5. The medicament mixer with a guiding and locking bottom plate according to claim 1, characterized in that, The top plate of the locking base plate and the locking base plate cooperate with each other when stressed during the assembly process, and ensure that the round head of the plunger can smoothly enter the fixing groove and be firmly locked through the bevel guide and the deformation of the cantilever beam structure.