Liquid medicine mixer, solvent bottle with liquid medicine mixer and use method

Abstract

The invention discloses a liquid medicine mixer and a using method thereof.The mixer comprises a shell and a slidable needle base embedded into the shell, the shell comprises an upper shell and a lower shell which are connected into a whole, an inner cavity for the needle base to be installed in a sliding mode is formed, the upper shell is provided with an upper opening, the lower shell is provided with a lower opening, and the needle base is provided with a vertical needle head; the needle head is a cylindrical tube, two ends of the needle head are provided with sharp ends, and at least one channel for liquid medicine to pass through is arranged in the needle head to achieve communication of two ends of the needle head. The mixer and the mother tank body are connected into a whole to form the solvent bottle with the liquid medicine mixer, liquid medicine mixing is convenient, the son tank body is taken to be inversely suspended to be inserted into the needle base through the upper opening, force is applied to the son tank body to push the needle base to slide, sharp ends at the two ends of the needle head pierce the sealing positions of the mother tank body and the son tank body respectively, communication of the mother tank body and the son tank body is achieved, and liquid medicine mixing is convenient. The mixing process is closed, external extra instruments and bacteria in the atmosphere are prevented from being contacted, safety and reliability are achieved, and the activity of the medicament is guaranteed to the maximum extent.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically to a liquid medicine mixer and a use method thereof. Background Art

[0002] In the process of producing liquid medicine, in order to ensure the stability and efficacy of the medicine, there is a process that makes the medicine into a solid powder under a sterile environment, and the powdered medicine is stored in a vial. The neck of the vial is thinner, and the mouth of the bottle is slightly thicker than the neck of the bottle, and the mouth of the bottle is sealed with a rubber cap. This type of medicine is supplied to medical institutions in the form of freeze-dried powder, which has many advantages such as no denaturation, small loss of volatile components, and long-term storage. When it is needed, a solvent is added to dissolve the powdered medicine into a liquid form before use. There are also some liquid medicines that are stored in vials. When they are needed, the liquid medicine is added to the solvent and mixed before use.

[0003] The shelf life of solvents is relatively short, while that of medicines is relatively long. Medicines and solvents are generally packaged separately, and other equipment is needed to mix the two.

[0004] For example: syringe, blunt needle, narrow-bore needle for injection, use blunt needle to pierce the rubber cover; if it is a powdered medicine, first extract the solvent, then inject the solvent into the vial of powdered medicine, and after dissolving, extract it back into the bottle of solvent; if it is a liquid medicine, first extract the liquid medicine, and insert the syringe of the medicine into the solvent; during this operation, there are many plug-in and pull-out operations, which will contact the atmosphere, and there is a risk of contact with bacteria in the atmosphere, and there is a risk of contamination, especially for powdered medicines. Some also use a bottle opener for opening aluminum caps to directly remove the rubber caps of the two container bottles, and then introduce the solvent into the vial of powdered medicine, and pour it out after mixing. During this operation, it is easy to be exposed to the sun, causing waste, and there is also the possibility of contact with auxiliary equipment and bacteria in the atmosphere, which poses a risk of contamination. These existing liquid medicine mixing methods are relatively cumbersome to operate. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a medicine liquid mixer, a solvent bottle with the medicine liquid mixer and a use method. The mixer is used to mix the medicine liquid of the sub-tank and the main tank, and finally merge them into the main tank, avoiding contact with external equipment and bacteria in the atmosphere. The mixer is safe, reliable and easy to operate.

[0006] According to one aspect of the present invention, there is provided a liquid medicine mixer, comprising:

[0007] The shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected to form an internal cavity, the upper shell has an upper opening, the lower shell has a lower end surface and the lower end surface is connected to a lower opening, and the upper opening and the lower opening are respectively arranged at two ends of the internal cavity;

[0008] The needle seat can be slidably assembled in the internal cavity formed by the upper shell and the lower shell. The needle seat is provided with a vertical needle. The needle is a cylindrical tube with sharp ends at both ends. At least one channel for the liquid medicine to pass through is provided in the needle to achieve communication between the two ends of the needle. The sharp end of the lower end of the unused needle does not leak out of the lower opening;

[0009] The upper opening end and the lower opening of the needle seat are respectively used to connect the sub-tank body and the mother tank body. Force is applied to the sub-tank body to push the needle seat to slide, so that the sharp ends of the needle respectively pierce the seals of the sub-tank body and the mother tank body to achieve the connection between the sub-tank body and the mother tank body, which is convenient for mixing the medicine and the solvent. Currently, the sub-tank body and the mother tank body are generally sealed with rubber covers.

[0010] Therefore, the lower opening of the mixer is aligned with the rubber cover of the mother tank body, the child tank body is hung upside down and enters from the upper opening, the bottle mouth of the child tank body is aligned with the needle seat, the child tank body is pushed hard to make the needle seat slide and make the two ends of the needle pierce the rubber covers of the child tank body and the mother tank body respectively, and the child tank body and the mother tank body are repeatedly turned upside down to make the solvent of the mother tank body enter the child tank body and flow back into the mother tank body after dissolution; the use of the mixer for mixing drug liquids does not require additional equipment, reduces contact with other equipment, and the entire mixing process is sealed to avoid contact with bacteria in the atmosphere, reduce contamination of the drug liquid during the mixing process, can ensure the activity of the drug to the greatest extent, and is very easy to operate.

[0011] In some embodiments, the lower shell has a circle of base protruding downward relative to the lower end surface, the center of the base forms a lower opening, and the base is connected to a stabilizing seat, which is used to connect to the bottle mouth of the female tank body. Thus, the base raises the lower end surface of the lower shell, and the stabilizing seat can be directly sleeved on the outside of the bottle mouth of the female tank body to cover the bottle mouth of the female tank body. The rubber cover of the female tank body is located directly below the lower opening of the base, and the sharp end of the lower end of the needle penetrates the rubber cover of the female tank body to achieve communication.

[0012] In some embodiments, the stabilizing seat has an upper end surface and is sleeved outside the base. The base is connected to the upper end surface of the stabilizing seat and the wall at the connection is thin to form an easy-to-fold area so that the mixer can be detached from the mother tank body after use. A rubber pad is embedded in the stabilizing seat, and an inner plug is embedded in the bottom of the stabilizing seat to press against the rubber pad and close to the inner wall of the upper end surface of the stabilizing seat. Thus, a stabilizing seat is provided and a rubber pad is embedded inside and pressed against by an inner plug. The bottom of the stabilizing seat is fixedly connected to the mother tank body containing the solvent in advance, and the sharp end of the lower end of the needle pierces the rubber pad and then pierces the inner plug. The mixer and the mother tank body are equivalent to being fixed as one, and are not easy to separate during the mixing process of the liquid medicine, which is safer and more reliable. After the liquid medicine is mixed, the mixer is detached, and the stabilizing seat, the rubber pad and the inner plug are retained at the bottle mouth of the mother tank body. At this time, the rubber pad is equivalent to the rubber cover of the mother tank body.

[0013] In some embodiments, a circle of limiting protrusions is provided on the surface of the needle holder facing the upper opening, and the limiting protrusions extend upward to have at least two separately arranged bayonet ports, and the top of the bayonet port has an introduction surface that is inclined downward from the outside to the inside, and the inner diameter formed by the lower edge of the introduction surface is slightly smaller than the inner diameter of the limiting protrusion to form an inner buckle that can clamp the bottle mouth of the sub-tank body, and the inner diameter of the lower edge of the introduction surface can prevent the end of the sub-tank body from entering the inner buckle when there is no resistance. Thus, the design of the introduction surface is convenient for the needle holder to be pushed to pierce the rubber cover of the mother tank body before the needle pierces the sub-tank body, and then continue to press the sub-tank body with force, and the sub-tank body gradually enters the bayonet port along the introduction surface, the bayonet port is first opened, and the needle holder gradually pierces the rubber cover of the sub-tank body, and finally the bottle mouth of the sub-tank body is clamped by the inner buckle, ensuring that the needle is connected smoothly with the sub-tank body and the mother tank body, and the sub-tank body is clamped after the connection and is not easy to be separated from the mixer, ensuring that the liquid medicine does not leak or spill, and the connection process is relatively closed, reducing the possibility of contamination.

[0014] In some embodiments, the needle seat has an annular convex edge on one side facing the upper opening, the annular convex edge is vertically arranged upward, and the annular convex edge can slide along the internal cavity of the shell. Thus, the annular convex edge can increase the sliding contact surface between the needle seat and the internal cavity, avoid the needle seat from getting stuck, and ensure that the needle seat slides smoothly.

[0015] In some embodiments, the inner wall of the upper shell has an inwardly protruding upper limit at one end near the upper opening, and the upper limit and the inner wall of the lower end surface of the lower shell form a sliding space for the needle seat, the outer diameter of the annular convex edge is slightly larger than the inner diameter at the upper limit to prevent the needle seat from detaching from the upper shell, and a circle of introduction arc surface is provided at the upper opening of the upper shell, and when the annular convex edge contacts the upper limit, the sharp end of the upper end of the needle does not leak out of the upper opening. Thus, the circle of introduction arc surface of the upper shell expands the upper opening of the upper shell, providing a tilting space when the sub-tank is separated from the shell, and the upper limit limits the travel of the needle seat, and also limits the upward movement of the needle seat when the sub-tank is separated, so as to remove the sub-tank.

[0016] In some embodiments, there are two channels in the needle, and the two channels are symmetrically distributed with respect to the center line of the needle. Thus, the two channels can accelerate the circulation of the drug solution, avoid the powdered drug blocking the channel of the needle and reducing the mixing efficiency of the drug solution, and the two channels are reasonably located and can make the wall thickness uniform, so as to ensure that the two tops of the needle have sharp ends, and ensure that the rubber covers of the sub-tank body and the main tank body are pierced smoothly.

[0017] In some embodiments, an easy-tear sticker is attached to the upper opening of the upper shell, and the sub-tank body can be inserted after the easy-tear sticker is removed. Therefore, before the mixer is used, the upper opening of the shell is attached with an easy-tear sticker to avoid contamination of the mixer. When it is used, the easy-tear sticker is removed and the sub-tank body is immediately inserted, and there is still a relatively closed space between the sub-tank body, the needle seat and the main tank body to avoid contamination.

[0018] According to another aspect of the present invention, there is provided a solvent bottle with a medicine-liquid mixer, comprising the above-mentioned medicine-liquid mixer and a mother tank body, wherein a liquid solvent is contained in the mother tank body, the lower shell has a base protruding downward relative to the lower end surface, the base is outerly provided with a stabilizing seat, the base is connected to the upper end surface of the stabilizing seat and the wall of the connection is thin to form an easy-to-fold area, a rubber pad is embedded in the stabilizing seat, an inner plug is embedded in the bottom of the stabilizing seat to press against the inner wall of the upper end surface of the rubber pad, an end of the inner plug away from the rubber pad is flush with the bottom of the stabilizing seat, the bottom of the stabilizing seat is connected to the bottle mouth of the mother tank body, an end of the inner plug away from the rubber pad presses against the bottle mouth of the mother tank body, and the rubber pad serves as a seal (i.e., a rubber cover) for the mother tank body.

[0019] In this way, the mother tank body filled with solvent and the medicine liquid mixer can be combined into a whole to form a solvent bottle with a medicine liquid mixer. The bottom of the medicine liquid mixer is embedded with a rubber pad and fixed with an inner plug. The bottle mouth of the mother tank body does not need to be equipped with a rubber cover. The sharp end of the lower end of the needle pierces the rubber pad and then pierces the inner plug. The sharp end of the upper end of the needle pierces the rubber cover of the sub-tank body. During the medicine liquid mixing process, since the mixer and the mother tank body are fixed as one, they are not easy to separate, which is safer and more reliable. After the medicine liquid is mixed, the sharp end of the lower end of the needle is separated from the rubber pad, and the part above the stable seat is detached from the easy-to-break area, and the stable seat, rubber pad and inner plug are retained at the bottle mouth of the mother tank body. At this time, the rubber pad is equivalent to the rubber cover of the mother tank body, and the medicine liquid in the mother tank body can be used.

[0020] According to another aspect of the present invention, there is provided a method for using the above-mentioned liquid medicine mixer, comprising the following steps:

[0021] Take the sub-tank body and the main tank body to be used, the sub-tank body contains a powdered or liquid medicine, and the main tank body contains a liquid solvent;

[0022] The lower shell of the mixer is fixed to the mother tank body, the lower opening of the mixer is aligned with the bottle mouth of the mother tank body, and the sharp tip of the lower end of the needle is located above the bottle mouth of the mother tank body;

[0023] Remove the peel-off label from the mixer opening to expose the needle holder;

[0024] The sub-tank body is hung upside down so that the bottle mouth of the sub-tank body is against the needle seat, and force is applied to press the sub-tank body to push the needle seat to slide toward the side where the mother tank body is located. As the needle seat slides, the sharp end of the lower end of the needle gradually pierces the seal of the mother tank body; when the needle seat abuts against the inner wall of the lower end surface of the lower shell, the needle seat stops sliding, and the sharp end of the lower end of the needle completes the seal piercing of the mother tank body; continue to apply force to press the sub-tank body to move the sub-tank body toward the side where the mother tank body is located, and the sharp end of the upper end of the needle pierces the rubber cover of the sub-tank body. When the bottle mouth of the sub-tank body abuts against the fixed surface of the needle on the needle seat, the sub-tank body stops moving, and the channel in the needle connects the mother tank body and the sub-tank body;

[0025] After the needle connects the mother tank and the child tank, part of the medicine in the child tank directly enters the mother tank along the channel. The child tank and the mother tank are repeatedly inverted so that the solvent in the mother tank enters the child tank along the channel and is fully shaken and mixed with the medicine in the child tank, and then flows back to the mother tank along the channel until all the medicine in the child tank enters the mother tank.

[0026] The bottle body of the sub-tank is pinched and pulled toward the side away from the mother tank body, the sub-tank body and the needle seat move simultaneously, the sharp end at the lower end of the needle seat is separated from the seal of the mother tank body, and the mixer is removed.

[0027] In some embodiments, the needle seat is provided with a limiting protrusion, the limiting protrusion extends upward with a bayonet, the top of the bayonet has an inclined introduction surface, the inner diameter formed by the lower edge of the introduction surface is slightly smaller than the inner diameter of the limiting protrusion to form an inner buckle capable of clamping the bottle mouth of the sub-tank body;

[0028] When the upside-down sub-tank body is pressed against the needle seat, the bottle mouth of the sub-tank body is pressed against the introduction surface to push the needle seat to slide; when the needle seat is pressed against the inner wall of the lower end surface of the lower shell, the sub-tank body is continuously pressed, and the sharp end of the needle head gradually penetrates into the rubber cover of the sub-tank body. At the same time, the sub-tank body gradually enters the bayonet and is clamped by the inner buckle to the bottle mouth of the sub-tank body;

[0029] The inner wall of the upper shell has an upper limit position protruding inward. When the mixer needs to be removed, the sub-tank body and the needle seat are pinched and moved to the upper limit position. The upper limit position blocks the movement of the needle seat, and the sub-tank body can be tilted and force is applied to take out. After the sub-tank body is taken out, the mixer is detached from the mother tank body.

[0030] In some embodiments, the lower shell of the mixer has a base, and the outer cover of the base is provided with a stabilizing seat to connect and fix the bottle mouth of the mother tank body. The base of the lower shell is pre-fixedly connected to the stabilizing seat, and the wall of the connection is thin to form an easy-to-fold area. A rubber pad is embedded in the stabilizing seat, and an inner plug is embedded in the bottom of the stabilizing seat to abut against the inner wall of the rubber pad close to the upper end surface of the stabilizing seat. The end of the inner plug away from the rubber pad is flush with the bottom of the stabilizing seat, the bottom of the stabilizing seat is connected to the bottle mouth of the mother tank body, and the end of the inner plug away from the rubber pad abuts on the bottle mouth of the mother tank body. The rubber pad serves as a seal of the mother tank body, i.e., a rubber cover;

[0031] When the sub-tank body is pressed, the needle seat is pushed to slide toward the side where the main tank body is located. As the needle seat slides, the sharp tip of the lower end of the needle gradually penetrates the rubber pad, then pierces the inner plug and connects with the main tank body;

[0032] When the mixer needs to be separated from the mother tank body, the mixer is folded to form a tear at the easy-to-bend area, and the mixer is removed, leaving the stabilizing seat and the mother tank body intact, and the stabilizing seat is covered with a rubber pad to seal the bottle mouth of the mother tank body.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] (1) The mixer provided by the present invention has a needle seat embedded in the shell to form an integral structure. Without the need for additional blunt needles, bottle openers and other instruments, the drug liquids in the child and mother tanks can be mixed, thereby reducing unnecessary contact between instruments and reducing contamination of the drug liquid, and ensuring the activity of the drug to the greatest extent.

[0035] (2) The mixer is easy to use. One only needs to align the lower opening of the mixer with the bottle mouth of the mother tank and connect the mother tank. The child tank is suspended upside down and inserted into the needle holder through the upper opening. The child tank is pushed hard so that both ends of the needle of the needle holder can pierce the rubber covers of the mother tank and the child tank, thereby forming a liquid medicine channel connecting the mother and child tanks. After the liquid medicine channel is formed, both ends of the needle are sealed by the rubber covers. The liquid medicine channel is sealed during the inversion mixing process to avoid contact with bacteria in the atmosphere and reduce the contamination of the liquid medicine during the mixing process.

[0036] (3) When the mixer is used, it can be pre-connected with the mother tank body through a stabilizing seat, and the upper opening of the mixer is protected by an easy-to-tear sticker. The connection between the mixer and the mother tank body is not complicated and the subsequent detachment is also convenient. In this way, the mother tank body with the mixer is one part, and the sub-tank body is a separate part. The shelf life of the drug efficacy of the sub-tank body and the mother tank body does not affect each other, and transportation is also relatively convenient. When the drug liquid needs to be mixed, the easy-to-tear sticker of the mixer is removed and the sub-tank body is inserted to achieve mixing, making the mixing of drug liquid more convenient. After the sub-tank body is inserted into the slot of the needle seat, it is not easy to detach from the needle seat. The mixer and the mother tank body are already integrated. When the drug liquid is mixed upside down, the mother and sub-tank bodies are not easy to slip off, making the mixing of drug liquid safe and reliable.

[0037] (4) After the liquid medicine is mixed, it all flows back into the mother tank body. The operator pulls the sub-tank body to drive the needle seat to move, so that the needle and the seal between the mother and sub-tank bodies are separated. The sub-tank body can be taken out by tilting and applying force, and then it is bent along the base of the lower shell. The wall thickness of the easy-to-bend area is thinned to easily separate the stable seat from the mixer, thereby realizing the detachment of the mother tank body from the mixer. The mixer is disposable and avoids pollution caused by repeated use. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a three-dimensional diagram of an embodiment of a liquid medicine mixer of the present invention;

[0039] Figure 2 yes Figure 1 A stereogram from another perspective;

[0040] Figure 3 yes Figure 1 Exploded diagram of

[0041] Figure 4 yes Figure 1 Schematic diagram of the internal structure;

[0042] Figure 5 It is a structural schematic diagram of an embodiment of the invention of a liquid medicine mixer, in which there is no stabilizing seat;

[0043] Figure 6 is a perspective view of an embodiment of the invention of a solvent bottle with a liquid medicine mixer;

[0044] Figure 7 It is a schematic diagram of the direction in which the sub-tank body is inserted upside down into the solvent bottle with the liquid medicine mixer;

[0045] Figure 8 is a schematic diagram of a sub-tank body after being inserted into a solvent bottle with a liquid medicine mixer;

[0046] Fig. 9 It is a schematic diagram of the internal structure of a solvent bottle with a liquid medicine mixer;

[0047] Fig.10 It is a schematic diagram of the connection between the sub-tank, the mixer and the main tank after the needle seat slides downward with maximum freedom;

[0048] Fig.11 It is a schematic diagram of the connection between the sub-tank, the mixer and the main tank after the needle seat slides upward with maximum freedom;

[0049] Fig.12 It is a schematic diagram of the structure of the needle seat, where: Fig.12 A is a three-dimensional diagram of the needle seat. Fig.12 B is the main view of the needle holder. Fig.12 C is a top view of the needle holder;

[0050] Fig.13 The present invention is a structural schematic diagram of a liquid medicine mixer acting on a mother tank body with a rubber cover. DETAILED DESCRIPTION

[0051] The present invention will be further described below in conjunction with specific implementation modes.

[0052] The liquid medicine mixer and the solvent bottle having the liquid medicine mixer provided by the present invention are intended to enable the liquid medicines in two containers to be mixed more safely, conveniently and efficiently. The mixer is suitable for mixing powdered medicines and also for mixing liquid medicines. In the present application, the container containing the powdered or liquid medicine is referred to as a sub-tank 10, and the container containing the liquid solvent is referred to as a mother tank 20. At present, the conventional sealing at the bottle mouth of the sub-tank and the mother tank is a rubber cover.

[0053] Example 1

[0054] like Figures 1 to 5 As shown, a drug liquid mixer according to one embodiment of the present invention comprises a housing and a needle seat 3 embedded in the housing and capable of sliding up and down.

[0055] like Figure 4 and 5 As shown, the needle seat 3 has a vertical needle 31, which is a cylindrical tube with sharp ends 311 at both ends. At least one channel 312 for the liquid medicine to pass through is provided in the needle 31 to achieve communication between the two ends of the needle 31. The needle 31 and the needle seat 3 are an integrated structure. The needle seat 3 has a plane 30, and the needle 31 is located at the center of the plane 30. The two ends of the needle 31 are respectively located on both sides of the plane 30. The sharp ends 311 at both ends of the needle 31 are used to pierce the seals of the sub-tank body 10 and the mother tank body 20 in the later stage ( Fig.10 shown).

[0056] The shell includes an upper shell 1 and a lower shell 2, and the upper shell 1 and the lower shell 2 are fixedly connected to form an internal cavity 100, the upper shell 1 has an upper opening 101, the lower shell 2 has a lower end face 21, and the lower end face 21 has a lower opening 102, and the upper opening 101 and the lower opening 102 are respectively arranged at the two ends of the internal cavity 100. Specifically, the outer body of the upper shell 1 and the lower shell 2 are both cylindrical, and the interior is a hollow structure. In this embodiment, the main body of the upper shell 1 and the lower shell 2 is a hollow cylindrical structure, and accordingly, the outer contour of the needle seat 3 is also round. In practical applications, the main body of the upper shell 1 and the lower shell 2 can also adopt other structures, such as a hollow square tube structure, and the outer contour of the needle seat 3 is matched to be rectangular; other structures can also be adopted, but it is necessary to ensure that it is matched with the needle seat 3. The embodiment provided in the present application adopts a hollow cylindrical structure, which is more conducive to processing, convenient for the assembly of the upper and lower shells (1, 2), and the needle seat 3, and also convenient for the subsequent mixer to be connected to the mother tank 20.

[0057] The upper and lower ends of the upper shell 1 are both open, the upper end of the lower shell 2 is open, and the lower end is a flat lower end surface 21. In this embodiment, the lower end of the upper shell 1 and the upper end of the lower shell 2 are fixed together by tenons and welding ( Figure 4 As shown in the figure, in actual application, a sealing method such as threaded connection or snap connection can also be used, but the inner wall must be smooth and the needle seat 3 must be able to slide smoothly. The needle seat 3 can be placed in the lower shell 2 first, and then the upper shell 1 and the lower shell 2 are welded and fixed. After being fixed, they form a whole, and the upper end of the upper shell 1 forms an upper opening 101, and the lower end of the lower shell 2 forms a lower opening 102. Since the mixer is a disposable product, preferably, the upper shell 1 and the lower shell 2 are welded and fixed to ensure safety.

[0058] The needle holder 3 can be slidably assembled in the internal cavity 100 formed by the upper shell 1 and the lower shell 2. When not in use, the sharp tip 311 at the lower end of the needle 31 does not leak out of the lower opening 102, and the sharp tip 311 at the upper end of the needle 31 does not leak out of the upper opening 101. One end of the needle holder 3 near the upper opening 101 and the lower opening 102 are respectively used to connect the sub-tank 10 and the mother tank 20. Force is applied to the sub-tank 10 to push the needle holder 3 to slide, so that the sharp tips 311 at both ends of the needle 31 pierce the seals of the sub-tank 10 and the mother tank 20 respectively, so as to realize the connection between the sub-tank 10 and the mother tank 20 and facilitate the mixing of the medicine and the solvent.

[0059] Preferably, two channels 312 are provided in the needle 31, and the two channels 312 are symmetrically distributed with respect to the center line of the needle 31. In this way, the two channels 312 can accelerate the circulation of the drug solution, avoid the powdered medicine blocking the channel 312 of the needle 31 and reducing the mixing efficiency of the drug solution, the two channels 312 are reasonably positioned, and the design of two symmetrical channels 312 can make the wall thickness uniform, and can also ensure that the two tops of the needle 31 have sharp ends 311, ensuring smooth piercing of the seal of the sub-tank body 10 and the mother tank body 20.

[0060] like Fig.12 As shown, the surface of the needle holder 3 facing the upper opening 101 has a circle of limiting protrusions 32, and the limiting protrusions 32 are annular structures. Extending upward from the limiting protrusions 32 are at least two separate bayonet holes 321, which can be stretched open after being squeezed, and can rebound and reset after clamping the sub-can body 10, wrapping the bottle mouth of the sub-can body 10 ( Fig.10 In this embodiment, four bayonet holes 321 are used, and the four bayonet holes 321 are evenly distributed on the limiting protrusion 32.

[0061] The top of the bayonet 321 has an introduction surface 322 that slopes downward from the outside to the inside. The inner diameter formed by the lower edge of the introduction surface 322 is slightly smaller than the inner diameter of the limiting protrusion 32, so as to form an inner buckle 323 that can clamp the bottle mouth of the sub-can body 10. The inner diameter of the lower edge of the introduction surface 322 can prevent the end of the sub-can body 10 from entering the inner buckle 323 without resistance. The design of the introduction surface 322 makes it easy for the needle seat 3 to be pushed to pierce the rubber cover of the mother tank body 20 or the rubber pad 7 at the bottom of the mixer before the needle 31 pierces the child tank body 10. Then, the child tank body 10 is pressed hard, and the child tank body 10 gradually enters the bayonet 321 along the introduction surface 322. The bayonet 321 is first opened, and the needle seat 3 gradually pierces the rubber cover of the child tank body 10. Finally, the bottle mouth of the child tank body 10 is clamped by the inner buckle 323, ensuring that the needle 31 is connected with the child and mother tank bodies (10, 20) smoothly. After the connection, the child tank body 10 is clamped and not easy to detach from the mixer, ensuring that the drug liquid does not leak or spill. The connection process is relatively closed, reducing the possibility of contamination.

[0062] The needle seat 3 has an annular convex edge 33 on one side facing the upper opening 101. The annular convex edge 33 is vertically arranged upward and can slide along the internal cavity 100 of the shell. In this embodiment, the outer contour of the annular convex edge 33 is a cylindrical structure. In practical applications, it can be matched with the inner wall of the internal cavity 100 formed by the shell. The annular convex edge 33 has a certain height, which can increase the sliding contact surface between the needle seat 3 and the internal cavity 100, avoid the needle seat 3 from getting stuck, and ensure that the needle seat 3 slides smoothly.

[0063] The sliding stroke of the needle seat 3 is as follows Fig.10 As shown, the downward limit is limited by the lower end surface 21 of the lower shell 2, and the upward limit also requires a limit. Figure 5 and 11 As shown, an inwardly protruding upper limit position 11 is provided at one end of the inner wall of the upper shell 1 near the upper opening 101, so that a sliding space for the needle seat 3 is formed between the upper limit position 11 and the inner wall of the lower end surface 21 of the lower shell 2, and the outer diameter of the annular convex edge 33 is slightly larger than the inner diameter at the upper limit position 11 to prevent the needle seat 3 from separating from the upper shell 1. A circle of introduction arc surface 12 is provided on the inner wall at the upper opening 101 of the upper shell 1, which expands the upper opening 101 of the upper shell 1 and provides a tilting space when the sub-can 10 is separated from the shell. The upper limit position 11 limits the stroke of the needle seat 3 and also limits the upward movement of the needle seat 3 when the sub-can 10 is separated, so that the sub-can 10 can be removed by applying force.

[0064] In this embodiment, Fig.12 As shown, the needle seat 3 adopts an integrated structure, and the annular convex edge 33, the limiting protrusion 32, the bayonet 321, and the needle head 31 on the needle seat 3 are all integrally formed.

[0065] like Figures 5 to 8 As shown, the upper opening 101 of the upper shell 1 is attached with an easy-tear sticker 4, and the sub-tank body 10 can be inserted by removing the easy-tear sticker 4. In order to increase the sticking area of ​​the easy-tear sticker 4 and make the easy-tear sticker 4 stick firmly, the upper end of the upper shell 1 has a circle of plane edges 13, and the easy-tear sticker 4 is attached to the plane edges 13 to cover the upper opening 101. Before the mixer is not used, the upper opening 101 of the shell is attached with an easy-tear sticker 4 to avoid contaminating the mixer. When it is used, the easy-tear sticker 4 is removed and the sub-tank body 10 is immediately inserted. There is still a relatively closed space between the sub-tank body 10, the needle seat 3 and the mother tank body 20 to avoid contamination. In this embodiment, when the needle seat 3 slides up to the upper limit, that is, the annular convex edge 33 conflicts with the upper limit position 11, the sharp end 311 of the upper end of the needle 31 does not leak out of the upper opening 101, so that it can be ensured that the easy-tear sticker 4 is not punctured by the needle 31 due to the sliding of the needle seat 3.

[0066] like Figure 4 and 10As shown, the lower shell 2 has a circle of base 22, and the base 22 is a circle of hollow cylindrical structure extending downward relative to the lower end surface 21, and the center of the base 22 forms a lower opening 102. When the mixer is connected to the bottle mouth of the mother tank body 20, the lower end surface 21 is elevated by the base 22. In this embodiment, the needle 31 at the upper and lower ends of the needle seat 3 is of different lengths, the needle 31 at the upper end of the needle seat 3 plane 30 is short, and the needle 31 at the lower end is long. Since the lower shell 2 has the base 22, the length of the needle 31 at the lower end can ensure that the needle 31 can be inserted into the rubber cover or rubber pad 7 that pierces the mother tank body 20. After the upper end of the needle 31 pierces the rubber cover of the child tank body 10, the opening position of the channel 312 on the surface of the upper sharp end 311 can ensure that the liquid medicine in the child tank body 10 flows back to the mother tank body 20 smoothly.

[0067] like Fig.13 As shown, the mixer may be provided with a stabilizing seat 5, which is connected to the base 22. The stabilizing seat 5 is a hollow collar structure, and the stabilizing seat 5 is an integrally formed structure with the base 22 and the lower shell 2. The stabilizing seat 5 can be sleeved outside the bottle mouth of the mother tank body 20 and wrap the bottle mouth, and the seal of the mother tank body 20 is located directly below the lower opening 102 of the base 22. In this way, the liquid medicine mixer can be directly applied to the sub-tank body 10 and the mother tank body 20 in the prior art, and the two ends of the needle 31 pierce the rubber cover of the two tank bodies to achieve communication. If there is no stabilizing seat 5, the connection between the two tank bodies can also be achieved by directly aligning the lower shell 2 or the base 22 with the mother tank body 20, but the stabilizing seat 5 is sleeved on the bottle mouth of the mother tank body 20, which is more stable during operation. If this mixer is used to act on an independent mother tank body, in addition to the easy-tear sticker 4 to be attached to the upper opening 101 of the upper shell 1, the bottom surface of the stabilizing seat 5 or the base 22 should also be well protected from dust.

[0068] like Figure 4As shown, the stabilizing seat 5 and the base 22 can also be connected in a detachable manner, where the base 22 is connected to the stabilizing seat 5, and the wall of the connection is thin to form an easy-to-break area 6, so that the mixer can be detached from the mother tank body 20 after use. Formation of the easy-to-fold area 6: The stable seat 5 is cylindrical in shape and hollow inside, that is, a hollow collar structure. A circle of protrusions 221 protruding outward is provided on the outer wall of the base 22. The thickness of the protrusions 221 is thin and higher than the lower surface of the base 22. The stable seat 5 has an outer wall that wraps the bottle mouth of the mother can body 20. The top of the stable seat 5 has an upper end face 51. The upper end face 51 extends a circle of convex edges 511 along its horizontal direction. The thickness of the convex edge 511 is the same as that of the protrusion 221. The height of the convex edge 511 from the bottom of the upper end face 51 is the same as the height of the protrusion 221 from the lower surface of the base 22. The convex edge 221 is aligned with the convex edge 511 and welded and fixed to form the easy-to-fold area 6. The thickness of the easy-to-fold area 6 is thin. The stable seat 5 is integrally injection molded with the base 22 and the lower shell 2. The lower part of the stabilizing seat 5 is a step-like structure, a rubber pad 7 is embedded in the stabilizing seat 5, and an inner plug 8 is plugged into the bottom of the stabilizing seat 5, the inner plug 8 is adapted to the inner wall of the stabilizing seat 5, and the lower part of the corresponding inner plug 8 is also a step-like structure. The inner plug 8 presses against the rubber pad 7 so that the top of the rubber pad 7 is in close contact with the upper end surface 51 of the stabilizing seat 5, the upper end surface and the side wall of the stabilizing seat 5 are wrapped around the edge of the rubber pad 7, the top surface of the rubber pad 7 is located below the lower opening 102, and the bottom surface of the inner plug 8 is flush with the bottom surface of the stabilizing seat 5.

[0069] The liquid medicine mixer having the stabilizing seat 5, the rubber pad 7 and the inner plug 8 can be used as a whole with a conventional female tank body with a rubber cover, so that the sharp tip at the lower end of the needle 31 will first pierce the rubber pad 7, penetrate the inner plug 8, and then pierce the rubber cover of the female tank body 20.

[0070] The liquid medicine mixer having the stabilizing seat 5, the rubber pad 7 and the inner plug 8 can also be directly connected as a whole to the mother tank body 20 without the rubber cover to form a solvent bottle having the liquid medicine mixer. The specific structure will be described in Example 2.

[0071] Example 2

[0072] like Figure 6 As shown, a solvent bottle with a liquid medicine mixer according to one embodiment of the present invention comprises the liquid medicine mixer described in the above-mentioned embodiment 1, and a mother tank body 20 fixedly connected to the mixer.

[0073] like Fig. 9As shown, the liquid medicine mixer comprises a housing composed of an upper housing 1 and a lower housing 2, a needle seat 3 embedded in the housing and capable of sliding up and down, a base 22 connected to the lower housing 2, a detachable stabilizing seat 5 connected to the base 22, a rubber pad 7 embedded in the inner wall of the stabilizing seat 5 and fixed with an inner plug 8, the base 22 is connected to the stabilizing seat 5, and the wall of the connection is thin to form an easy-to-break area 6. The specific structures of these components have been specifically described in the embodiments and will not be repeated here.

[0074] The liquid medicine mixer and the mother tank body 20 are made separately, and the stabilizing seat 5 and the base 22 are formed with an easy-to-fold area 6. The stabilizing seat 5 is embedded with a rubber pad 7 and fixed with an inner plug 8. The liquid solvent is placed in the mother tank body 20, and the stabilizing seat 5 of the liquid medicine mixer is directly fixedly connected to the bottle mouth of the mother tank body 20. Specifically, after the inner plug 8 is inserted into the stabilizing seat 5, the inner plug 8 is flush with the bottom surface of the stabilizing seat 5, and there is no rubber cover at the bottle mouth of the mother tank body 20. The mother tank body 20 is welded and fixed to the bottom surface of the stabilizing seat 5, and the bottom surfaces of the inner plug 8 and the stabilizing seat 5 are both in contact with the bottle mouth of the mother tank body 20, so as to make a solvent bottle with a solvent inside and a liquid medicine mixer on the top.

[0075] The mixer is pre-installed on the mother tank body 20 to produce the finished product. When mixing with the medicine in the sub-tank body 10, the easy-tear sticker 4 on the shell can be directly torn off, and the sub-tank body 10 can be inserted to perform the medicine mixing operation. The operation is very simple. After the operation is completed, the base 22 of the mixer and the upward part of the base 22 are torn off from the easy-to-break area 6, and the stable seat 5, rubber pad 7 and inner plug 8 are retained at the bottle mouth of the mother tank body 20. At this time, the edge of the rubber pad 7 is wrapped by the upper end surface 51 and the side wall of the stable seat 5, and the rubber pad 7 is equivalent to the seal of the mother tank body 20, that is, the rubber cover, and the subsequent use is the same as usual.

[0076] In this embodiment, the surface where the inner plug 8 contacts the rubber pad 7 is a plane. In specific applications, a small hole can also be set in the center of the plane, as long as it can ensure that the rubber pad 7 is effectively supported and the position can be stable and not slip during the puncture of the rubber pad 7.

[0077] Directly prefabricating the mother tank body having the drug liquid mixer and the solvent into a whole is a relatively better way in terms of convenience of subsequent drug liquid mixing operations and reduction of bacterial contact.

[0078] In the present application, the welding fixation mentioned does not specifically refer to the welding between metals, but can be adhesive welding fixation, hot melt welding fixation, etc. between plastic materials.

[0079] Combination Figures 9 to 10 , specifically describing the method for using the solvent bottle with the liquid medicine mixer, comprising the following steps:

[0080] Take the sub-tank 10 to be used and the solvent bottle with a liquid medicine mixer. The sub-tank 10 contains a powdered medicine or a liquid medicine. The solvent bottle with a liquid medicine mixer has a main tank 20 containing a liquid solvent.

[0081] When it is necessary to mix the drug solutions, the operator manually removes the tear-off sticker 4 on the opening 101 of the mixer to expose the needle seat 3 .

[0082] The operator holds the bottle body of the sub-tank 10 and hangs it upside down ( Figure 7 As shown in the figure, insert the sub-tank 10 from the upper opening 101, press the bottle mouth of the sub-tank 10 against the introduction surface 322 of the needle seat 3, apply downward force to press the sub-tank 10, and the sub-tank 10 pushes the needle seat 3 to slide toward the side where the mother tank 20 is located. As the needle seat 3 slides downward, the sharp end 311 at the lower end of the needle 31 gradually pierces the rubber pad 7. After the rubber pad 7 is pierced, the sharp end 311 at the lower end of the needle 31 continues to pierce the inner plug 8. When the plane 30 on the needle seat 3 where the needle 31 is installed abuts against the inner wall of the lower end surface 21 of the lower shell 2, the needle seat 3 stops sliding, and the sharp end 311 at the lower end of the needle 31 completes piercing the rubber pad 7 and penetrates and pierces the inner plug 8. The operator continues to apply force to press the sub-tank 10 to move the sub-tank 10 toward the side where the mother tank 20 is located, and the sharp tip 311 of the needle 31 pierces the rubber cover of the sub-tank 10. When the bottle mouth of the sub-tank 10 abuts against the fixed plane 30 of the needle 31 on the needle seat 3, the sub-tank 10 stops moving, and the sharp tip 311 of the needle 31 completes piercing the rubber cover of the sub-tank 10. Fig.10 The two ends of the needle 31 are punctured, and the channel 312 in the needle 31 connects the mother tank body 20 and the child tank body 10. When the child tank body 10 is pressed downward, the bottom of the stabilizing seat 5 and the inner plug 8 abut against the bottle mouth of the mother tank body 20, which can play a supporting role.

[0083] After the needle 31 connects the mother tank body 20 and the child tank body 10, if there is powdered medicine in the child tank body 10, part of the medicine in the child tank body 10 can directly enter the mother tank body 20 along the channel 312. For the medicine that does not directly enter the mother tank body 20, after repeatedly inverting the child tank body 10 and the mother tank body 20, the solvent of the mother tank body 20 enters the child tank body 10 along the channel 312 and is fully shaken and mixed with the medicine in the child tank body 10, and then flows back to the mother tank body 20 along the channel 312. The child tank body 10 and the mother tank body 20 are repeatedly inverted until all the medicine in the child tank body 10 enters the mother tank body 20. If the sub-tank 10 contains liquid medicine, the medicine in the sub-tank 10 can directly enter the main tank 20 along the channel 312. If the operator deems it necessary, the sub-tank 10 and the main tank 20 can be repeatedly inverted so that the solvent in the main tank 20 enters the sub-tank 10 along the channel 312 and then flows back to the main tank 20 along the channel 312.

[0084] Since the needle seat 3 has a plurality of separately arranged bayonet holes 321, the top of the bayonet hole 321 has an inclined introduction surface 322, and the inner diameter formed by the lower edge of the introduction surface 322 is slightly smaller than the inner diameter of the limiting protrusion 32, forming an inner buckle 323 structure that can clamp the bottle mouth of the sub-tank 10. When the inverted sub-tank 10 is pressed against the needle seat 3, the bottle mouth of the sub-tank 10 presses against the introduction surface 322 to push the needle seat 3 downward. When the needle seat 3 is pressed against the inner wall of the lower end surface 21 of the lower shell 2, the sub-tank 10 is continuously pressed with force, and the sharp end 311 at the upper end of the needle 31 gradually penetrates into the rubber cover of the sub-tank 10. At the same time, the sub-tank 10 gradually enters the bayonet hole 321 and is clamped by the inner buckle 323 at the bottle mouth of the sub-tank 10. The mixer is connected to the mother tank body 20 as a whole, and the mouth of the sub-tank body 10 is stuck. When the sub-tank body 10 and the mother tank body 20 are repeatedly turned upside down, the two tank bodies are stably connected without the risk of separation, thereby improving safety.

[0085] After the liquid medicine is mixed and refluxed, the sub-tank body 10 and the upper part of the mixer need to be separated from the main tank body 20. Fig.11 As shown, the operator pinches the bottle body of the sub-tank 10 with his hand and pulls it to the side away from the mother tank 20, and the sub-tank 10 and the needle seat 3 move upward at the same time, and the sharp end 311 at the lower end of the needle seat 3 is separated from the rubber pad 7. The inner wall of the upper shell 1 has an upper limit position 11 protruding inward. When the sub-tank 10 and the needle seat 3 are pinched and moved to the upper limit position 11, the upper limit position 11 blocks the movement of the needle seat 3. The operator tilts and applies force to remove the sub-tank 10. After the sub-tank 10 is taken out, bend the mixer to form a tear at the easy-to-bend area 6, retain the stabilizing seat 5, the rubber pad 7 and the inner plug 8 at the bottle mouth of the mother tank 20, and the rest of the parts are detached. At this time, the edge of the rubber pad 7 is wrapped by the upper end surface 51 and the side wall of the stabilizing seat 5, and the rubber pad 7 is equivalent to the rubber cover of the mother tank 20, and the subsequent use is the same as usual.

[0086] The main difference between the method of using the liquid medicine mixer and the method of using the solvent bottle with the liquid medicine mixer is that the liquid medicine mixer is not pre-connected with the mother tank body 20, and the mother tank body 20 is a conventional bottle with a rubber cover for holding liquid solvent. The steps of using the liquid medicine mixer are summarized as follows:

[0087] Take the sub-tank 10 and the main tank 20 to be used, wherein the sub-tank 10 contains a powdered medicine or a liquid medicine, and the main tank 20 contains a liquid solvent and has a sealed rubber cover.

[0088] The lower shell 2 of the mixer is fixed to the mother tank body 20. The fixing here can be that the base 22 is aligned and connected with the mother tank body 20. In the case of a stable seat, the stable seat 5 is sleeved on the bottle mouth of the mother tank body 20 ( Fig.13As shown), however, the lower opening 102 of the mixer is required to be aligned with the rubber cover of the female tank body 20, and the sharp end 311 at the lower end of the needle 31 is located above the rubber cover of the female tank body 20.

[0089] The operator removes the easy-tear sticker 4 on the upper opening 101 of the mixer to expose the needle seat 3. The operator holds the bottle body of the sub-tank 10 and hangs it upside down, and inserts the sub-tank 10 from the upper opening 101. The needle seat 3 is pushed to move, and the sharp tip 311 at the lower end of the needle 31 pierces the rubber cover of the mother tank 20. When the plane 30 on the needle seat 3 where the needle 31 is installed abuts against the inner wall of the lower end surface 21 of the lower shell 2, the needle seat 3 stops sliding. The operator continues to apply force to press the sub-tank 10 to move the sub-tank 10 toward the side where the mother tank 20 is located, and the sharp tip 311 at the upper end of the needle 31 pierces the rubber cover of the sub-tank 10. The specific working process of the needle seat 3 to connect the sub-tank 10 and the mother tank 10 on both sides is consistent with the description in the method of using the solvent bottle with a liquid medicine mixer. If the rubber pad 7 and the inner plug 8 are embedded in the stabilizing seat 5, the sharp tip 311 at the lower end of the needle 31 must first pierce the rubber pad 7 and the inner plug 8, and then pierce the rubber cover of the female tank body 20 to achieve communication with the female tank body 20.

[0090] After the liquid medicine is mixed and refluxed, the sub-tank body 10 and the mixer need to be detached from the mother tank body 20. The operator pinches the bottle body of the sub-tank body 10 and pulls it to the side away from the mother tank body 20, and the sub-tank body 10 and the needle seat 3 move upward at the same time, and the sharp end 311 at the lower end of the needle seat 3 is separated from the rubber cover of the mother tank body 20. The operator tilts and applies force to remove the sub-tank body 10, and the overall detachment of the mixer is completed.

[0091] In the mixer provided by the present invention, the needle seat 3 is embedded in the shell to form an integral structure. Without the need for additional blunt needles, bottle openers and other instruments, the drug liquids in the child and mother tanks can be mixed, thereby reducing unnecessary instrument contact, reducing contamination of the drug liquid, and ensuring the activity of the drug to the greatest extent.

[0092] When the mixer is used, it can be pre-connected with the mother tank body 20 through the stabilizing seat 5, and the upper opening 101 of the mixer is protected by the easy-tear sticker 4. The connection between the mixer and the mother tank body 20 is not complicated, and the subsequent detachment is also convenient. In this way, the mother tank body 20 with the mixer is a part, and the sub-tank body 10 is a separate part. The shelf life of the drug efficacy of the sub-tank body 10 and the mother tank body 20 does not affect each other, and transportation is also more convenient. When the mixer is connected to the mother tank body 20, the lower opening 102 of the mixer needs to be aligned with the rubber cover of the mother tank body 20.

[0093] The method of using the mixer to mix liquid medicine is simple to operate, making liquid medicine mixing more convenient. Remove the easy-tear sticker 4 of the mixer, hang the sub-tank body 10 upside down through the upper opening 101 and align it with the needle seat 3, and push the sub-tank body 10 with force, so that the two ends of the needle 31 of the needle seat 3 can pierce the rubber cover of the mother tank body 20 and the sub-tank body 10, forming a liquid medicine channel 312 connecting the mother and child tank bodies. After the liquid medicine channel 312 is formed, both ends of the needle 31 are sealed and wrapped by the rubber cover, and the whole process is sealed during the inverted mixing of liquid medicine to avoid contact with bacteria in the atmosphere and reduce the contamination of the liquid medicine during the mixing process. After the sub-tank body 10 is inserted into the bayonet 321 of the needle seat 3, it is not easy to detach from the needle seat 3, and the mixer and the mother tank body 20 are integrated. When the liquid medicine is inverted and mixed, the mother and child tank bodies are not easy to slip off, making the liquid medicine mixing safe and reliable. The mixer proposed by the present invention provides great convenience for the mixing of liquid medicines in vials, especially for the mixing of powdered medicines, greatly simplifies the operation steps and reduces the operation risks.

[0094] After the drug liquid is mixed, it all flows back into the mother tank body 20. The operator pulls the sub-tank body 10 to drive the needle seat 3 to move, so that the needle 31 is separated from the rubber covers of the mother and sub-tank bodies. The sub-tank body 10 can be taken out by tilting and applying force, and then it is bent along the base 22 of the lower shell 2. The wall thickness of the easy-to-bend area 6 is thinned, and the stable seat 5 is easily separated from the mixer, thereby realizing the detachment of the mother tank body 20 from the mixer. The mixer is disposable and avoids pollution caused by repeated use.

[0095] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A liquid medicine mixer, characterized in that: include: A shell, the shell comprising an upper shell and a lower shell, the upper shell and the lower shell are connected to form an internal cavity, the upper shell has an upper opening, the lower shell has a lower end surface and the lower end surface is connected to a lower opening, the upper opening and the lower opening are respectively arranged at two ends of the internal cavity; A needle seat, the needle seat can be slidably assembled in the internal cavity formed by the upper shell and the lower shell, the needle seat is provided with a vertical needle, the needle is a cylindrical tube with sharp ends at both ends, at least one channel for the liquid medicine to pass through is provided in the needle to achieve communication between the two ends of the needle, and the unused sharp end at the lower end of the needle does not leak out of the lower opening; The end of the needle seat close to the upper opening and the lower opening are respectively used to connect the sub-tank body and the mother tank body. Force is applied to the sub-tank body to push the needle seat to slide, so that the sharp ends of the needle head respectively pierce the seals of the sub-tank body and the mother tank body to achieve the connection between the sub-tank body and the mother tank body, which is convenient for mixing the medicine and the solvent.

2. The liquid medicine mixer according to claim 1, characterized in that: The lower shell has a circle of base protruding downward relative to the lower end surface, the center of the base forms a lower opening, and the base is connected to a stabilizing seat, which is used to connect to the bottle mouth of the mother tank body.

3. The liquid medicine mixer according to claim 2, characterized in that: The stabilizing seat has an upper end surface and is sleeved on the outside of the base. The base is connected to the upper end surface of the stabilizing seat and the wall of the connection is thin to form an easy-to-fold area so that the mixer can be detached from the mother tank body after use. A rubber pad is embedded in the stabilizing seat, and an inner plug is embedded in the bottom of the stabilizing seat to press the rubber pad against the inner wall of the upper end surface of the stabilizing seat.

4. The liquid medicine mixer according to any one of claims 1 to 3, characterized in that: A circle of limiting protrusions is provided on the surface of the needle seat facing the upper opening, and the limiting protrusion extends upward to have at least two separately arranged snap-ons, and the top of the snap-on has an introduction surface inclined downward from the outside to the inside, and the inner diameter formed by the lower edge of the introduction surface is slightly smaller than the inner diameter of the limiting protrusion to form an inner buckle that can clamp the bottle mouth of the sub-tank body, and the inner diameter of the lower edge of the introduction surface can prevent the end of the sub-tank body from entering the inner buckle when there is no resistance.

5. The liquid medicine mixer according to claim 4, characterized in that: The needle seat has an annular convex edge on one side facing the upper opening. The annular convex edge is vertically arranged upwards and can slide along the internal cavity of the shell.

6. The liquid medicine mixer according to claim 5, characterized in that: The inner wall of the upper shell has an upper limit position protruding inward at one end close to the upper opening, and a sliding space for the needle seat is formed between the upper limit position and the inner wall of the lower end surface of the lower shell. The outer diameter of the annular convex edge is slightly larger than the inner diameter at the upper limit position to prevent the needle seat from detaching from the upper shell. A circle of guiding arc surface is provided at the upper opening of the upper shell. When the annular convex edge conflicts with the upper limit position, the sharp end of the upper end of the needle does not leak out of the upper opening.

7. The liquid medicine mixer according to claim 1, characterized in that: There are two channels in the needle, and the two channels are symmetrically distributed relative to the center line of the needle. An easy-tear sticker is attached to the upper opening of the upper shell, and the sub-tank body can be inserted after the easy-tear sticker is removed.

8. A solvent bottle with a liquid medicine mixer, characterized in that: The invention comprises a liquid medicine mixer as claimed in any one of claims 1 to 7, and a mother tank body, wherein the mother tank body is used to contain a liquid solvent, the lower shell has a base protruding downward relative to the lower end surface, the base is outerly provided with a stabilizing seat, the base is connected to the upper end surface of the stabilizing seat and the wall of the connection is thin to form an easy-to-fold area, a rubber pad is embedded in the stabilizing seat, an inner plug is embedded in the bottom of the stabilizing seat to press against the inner wall of the upper end surface of the rubber pad, an end of the inner plug away from the rubber pad is flush with the bottom of the stabilizing seat, the bottom of the stabilizing seat is connected to the bottle mouth of the mother tank body, and the end of the inner plug away from the rubber pad presses against the bottle mouth of the mother tank body, and the rubber pad serves as a seal for the mother tank body.

9. A method for using the liquid medicine mixer according to any one of claims 1 to 7, characterized in that: Take a sub-tank body and a main tank body to be used, wherein the sub-tank body contains a powdered or liquid medicine, and the main tank body contains a liquid solvent; The lower shell of the mixer is fixed to the mother tank body, the lower opening of the mixer is aligned with the bottle mouth of the mother tank body, and the sharp tip of the lower end of the needle is located above the bottle mouth of the mother tank body; Removing the tear-off sticker from the mixer opening to expose the needle seat; The sub-tank body is hung upside down so that the bottle mouth of the sub-tank body is against the needle seat, and force is applied to press the sub-tank body to push the needle seat to slide toward the side where the mother tank body is located. As the needle seat slides, the sharp end of the lower end of the needle gradually pierces the seal of the mother tank body; when the needle seat abuts against the inner wall of the lower end surface of the lower shell, the needle seat stops sliding, and the sharp end of the lower end of the needle completes the seal piercing of the mother tank body; continue to apply force to press the sub-tank body to move the sub-tank body toward the side where the mother tank body is located, and the sharp end of the upper end of the needle pierces the seal of the sub-tank body. When the bottle mouth of the sub-tank body abuts against the fixed surface of the needle on the needle seat, the sub-tank body stops moving, and the channel in the needle connects the mother tank body and the sub-tank body; After the needle connects the mother tank and the child tank, part of the medicine in the child tank directly enters the mother tank along the channel, and the child tank and the mother tank are repeatedly inverted, so that the solvent in the mother tank enters the child tank along the channel and is fully shaken and mixed with the medicine in the child tank, and then flows back to the mother tank along the channel until all the medicine in the child tank enters the mother tank; The bottle body of the sub-tank is pinched and pulled toward the side away from the mother tank body, the sub-tank body and the needle seat move simultaneously, the sharp end at the lower end of the needle seat is separated from the seal of the mother tank body, and the mixer is removed.

10. The method for using the liquid medicine mixer according to claim 9, characterized in that: The needle seat is provided with a limiting protrusion, and the limiting protrusion extends upward with a bayonet, and the top of the bayonet has an inclined introduction surface, and the inner diameter formed by the lower edge of the introduction surface is slightly smaller than the inner diameter of the limiting protrusion to form an inner buckle that can clamp the bottle mouth of the sub-tank body; When the upside-down sub-tank body is pressed against the needle seat, the bottle mouth of the sub-tank body is pressed against the introduction surface to push the needle seat to slide; when the needle seat is pressed against the inner wall of the lower end surface of the lower shell, the sub-tank body is continuously pressed, and the sharp end of the needle head gradually penetrates into the seal of the sub-tank body. At the same time, the sub-tank body gradually enters the bayonet and is clamped by the inner buckle to the bottle mouth of the sub-tank body; The inner wall of the upper shell has an upper limit position protruding inward. When the mixer needs to be removed, the sub-tank body and the needle seat are pinched and moved to the upper limit position. The upper limit position blocks the movement of the needle seat, and the sub-tank body can be tilted and force is applied to take out. After the sub-tank body is taken out, the mixer is detached from the mother tank body.

11. The method for using the liquid medicine mixer according to claim 9, characterized in that: The lower shell of the mixer has a base, and the outer cover of the base is provided with a stabilizing seat to connect and fix the bottle mouth of the mother tank body. The base of the lower shell is pre-fixedly connected to the stabilizing seat, and the wall of the connection is thin to form an easy-to-fold area. A rubber pad is embedded in the stabilizing seat, and an inner plug is embedded in the bottom of the stabilizing seat to abut against the inner wall of the rubber pad close to the upper end surface of the stabilizing seat. The end of the inner plug away from the rubber pad is flush with the bottom of the stabilizing seat, and the bottom of the stabilizing seat is connected to the bottle mouth of the mother tank body. The end of the inner plug away from the rubber pad abuts against the bottle mouth of the mother tank body, and the rubber pad serves as a seal for the mother tank body; When the sub-tank body is pressed, the needle seat is pushed to slide toward the side where the main tank body is located. As the needle seat slides, the sharp tip of the lower end of the needle gradually penetrates the rubber pad, then pierces the inner plug and connects with the main tank body; When the mixer needs to be separated from the mother tank body, the mixer is bent to form a tear at the easy-to-bend area, and the mixer is removed, leaving the stabilizing seat and the mother tank body intact, and the stabilizing seat is covered with a rubber pad to seal the bottle mouth of the mother tank body.

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