Medicine mixing and pre-filling device
The design of the drug mixing and pre-filling device solves the problem of waste caused by mixing spare drugs before surgery, realizes the separate storage and rapid mixing of drug solutions, extends the shelf life, and avoids waste.
Patent Information
- Application Number
- CN202422664198.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The existing technology involves mixing spare medications before surgery, which can lead to a waste of medical resources.
Design a drug mixing and pre-filling device. By setting a drug capsule and a squeezing element inside the cylinder to hold two different drug solutions, the device can mix the solutions by pressing the easy-tear opening during use, thus avoiding waste caused by pre-mixing.
It extends the shelf life of the medicine, allows for quick mixing during use, avoids waste of spare medicine, and is easy to operate.
Smart Images
Figure CN223569676U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of medical apparatus and instruments, and particularly relates to a medicine mixing and pre-filling device. BACKGROUND
[0002] A syringe is a common medical instrument, usually composed of a barrel and a matched plunger rod, used to inject or extract a small amount of liquid or gas into or from areas that cannot be accessed by other methods. When the plunger rod is pulled out, liquid or gas is sucked into the barrel from the small hole at the front end of the barrel. When the plunger rod is pushed in, liquid or gas is squeezed out. The process of using a syringe to extract or inject liquid or gas is called injection.
[0003] During surgery, backup drugs need to be prepared, and some backup drugs often need to be mixed with two kinds of liquid medicine before injection. It is tedious and time-consuming to extract and mix two kinds of liquid medicine temporarily. Therefore, two kinds of liquid medicine need to be extracted and mixed before the surgery begins. However, the mixed backup drugs have a short shelf life, and if they are not used during the surgery, they will be discarded after the surgery or at the end of the day, resulting in waste of medical resources.
[0004] Therefore, there is a need in the art for a new technical solution to solve the above problems. SUMMARY
[0005] In order to improve or solve the technical problem of waste of medical resources caused by mixing backup drugs before surgery in the prior art, the utility model provides a medicine mixing and pre-filling device. The medicine mixing and pre-filling device comprises a barrel, a pressing groove is formed on the barrel; an extrusion piece is slidably arranged in the barrel and is in sealed connection with the barrel; a medicine bag is arranged in the barrel; the medicine bag and the barrel form a first cavity containing a first liquid, and a second cavity containing a second liquid is formed in the medicine bag; an easy-to-tear opening is arranged on the side of the medicine bag close to the first cavity, and a pressing piece matched with the pressing groove is arranged on the medicine bag; the pressing piece is configured to press into the barrel along the pressing groove to break the easy-to-tear opening.
[0006] In the medicine mixing and pre-filling device, the second cavity is formed in the medicine bag for containing the second medicine liquid; the medicine bag is sealingly connected with the cylinder and forms the first cavity with the cylinder for containing the first medicine liquid; the easy-to-tear opening and the pressing piece are formed on the medicine bag; the pressure in the second cavity is increased by pressing the pressing piece, the easy-to-tear opening is broken, and the first medicine liquid and the second medicine liquid are mixed; by forming the first cavity and the second cavity, the first medicine liquid and the second medicine liquid are respectively contained, the two kinds of medicine liquids are separately stored when not in use, and the storage period of the medicine is prolonged; when in use, the easy-to-tear opening only needs to be broken, the rapid mixing of the two kinds of medicine liquids is realized, the use is quick and convenient, and the waste of the medicine liquid caused by the advance mixing of the standby medicine is avoided.
[0007] Further, the medicine bag is sealingly connected with the cylinder through the adhesive structure.
[0008] Further, the medicine bag comprises a first side wall close to the pressing piece, a second side wall away from the pressing piece, and a circumferential side wall connected with the cylinder; the first side wall and the circumferential side wall are provided with a poor-arc fixing structure and a good-arc easy-to-tear structure.
[0009] Further, the circumferential side wall is made of transparent PVC material.
[0010] Further, one end of the circumferential side wall close to the pressing piece is formed with a guide surface.
[0011] Further, the easy-to-tear opening and the good-arc easy-to-tear structure are virtual line sealing openings, and the poor-arc fixing structure is a solid line sealing opening.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The second cavity is formed in the medicine bag for containing the second medicine liquid; the medicine bag is sealingly connected with the cylinder and forms the first cavity with the cylinder for containing the first medicine liquid; the easy-to-tear opening and the pressing piece are formed on the medicine bag; the pressure in the second cavity is increased by pressing the pressing piece, the easy-to-tear opening is broken, and the first medicine liquid and the second medicine liquid are mixed; by forming the first cavity and the second cavity, the first medicine liquid and the second medicine liquid are respectively contained, the two kinds of medicine liquids are separately stored when not in use, and the storage period of the medicine is prolonged; when in use, the easy-to-tear opening only needs to be broken, the rapid mixing of the two kinds of medicine liquids is realized, the use is quick and convenient, and the waste of the medicine liquid caused by the advance mixing of the standby medicine is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0014] The preferred embodiments of the utility model are described below with reference to the drawings, and the drawings show:
[0015] Figure 1 is an embodiment of a medicine mixing and pre-charging device of the utility model;
[0016] Figure 2 is Figure 1 the enlarged structure schematic view of A in FIG. 1.
[0017] Mark list: 1, cylinder; 2, extrusion piece; 3, medicine bag; 31, first side wall; 32, second side wall; 33, circumferential side wall; 34, first cavity; 35, easy tear mouth; 36, pressing piece; 37, guide surface; 38, superior arc easy tear structure; 39, inferior arc fixed structure. DETAILED DESCRIPTION
[0018] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.
[0019] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0020] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0021] In order to improve or solve the technical problems in the prior art that the standby medicament is mixed before the operation starts, which is easy to cause waste of medical resources, the utility model provides a medicine mixing and pre-filling device. The medicine mixing and pre-filling device comprises a barrel 1, a pressing groove is formed in the barrel 1; a pressing piece 2 is slidably arranged in the barrel 1 and is in sealed connection with the barrel 1; a medicine bag 3 is arranged in the barrel 1; the medicine bag 3 and the barrel 1 form a first cavity 34 containing a first liquid medicine, and a second cavity containing a second liquid medicine is formed in the medicine bag 3; an easy-to-tear opening 35 is arranged on one side of the medicine bag 3 close to the first cavity 34, and a pressing piece 36 matched with the pressing groove is arranged on the medicine bag 3; the pressing piece 36 is configured to be pressed into the barrel 1 along the pressing groove to break the easy-to-tear opening 35.
[0022] Figure 1 Figure 1 is a schematic view of an embodiment of the utility model of a medicine mixing and pre-filling device. As shown in Figure 1 , in one or more embodiments, the utility model of a medicine mixing and pre-filling device comprises a barrel 1, a pressing piece 2 and a medicine bag 3.
[0023] Continuing to refer to Figure 1 , the barrel 1 is in a general cylindrical shape and has opposite first and second ends. Among them, the first end is provided with a needle seat, and the needle seat is arranged in a sealed manner; the other end is open. A pressing groove is formed in the barrel 1. Further, the pressing piece 2 is a needle plug, and the pressing piece 2 is made of rubber material and is in sealed connection with the barrel 1 through interference fit. The pressing piece 2 can move along the barrel 1 under the action of external force to inject or suck the liquid medicine.
[0024] Figure 2 Figure 2 is an enlarged structural schematic view of A in Figure 1 . As shown in Figure 1 and Figure 2As shown in the drawings, in one or more embodiments, the medicine bag 3 is in a substantially cylindrical shape and is in a sealed connection with the barrel 1. The medicine bag 3 is arranged at the pressing groove. Specifically, an adhesive is arranged between the medicine bag 3 and the barrel 1, and the medicine bag 3 and the barrel 1 are tightly adhered to form a sealed connection. Further, the medicine bag 3 comprises a first side wall 31, a second side wall 32 and a circumferential side wall 33. The first side wall 31 is close to the pressing piece 2, the second side wall 32 is away from the pressing piece 2, and the circumferential side wall 33 is in a fixed connection with the barrel 1 and is tightly adhered. Further, a first cavity 34 is formed between the medicine bag 3 and the barrel 1, and the first cavity 34 contains a first medicine liquid. A second cavity is formed inside the medicine bag 3, and the second cavity is used to contain a second medicine liquid. Further, a tearable opening 35 is arranged on the second side wall 32, and the tearable opening 35 is a dashed line seal. Specifically, the second side wall 32 is circular, and the tearable opening 35 extends along the radial direction of the second side wall 32. Further, the first side wall 31 and the second side wall 32 are provided with a poor-arc fixing structure 39 and a good-arc tearable structure 38 between the first side wall 31 and the circumferential side wall 33 and between the second side wall 32 and the circumferential side wall 33. Specifically, the good-arc tearable structure 38 is a dashed line seal, so that when the pressing piece 2 moves, the first side wall 31 and the second side wall 32 can be mostly separated from the circumferential side wall 33 to avoid hindering the movement of the pressing piece 2. Specifically, the poor-arc fixing structure 39 is a solid line seal, and the poor-arc fixing structure can be a circular arc with a very small radius, which only needs to fix the first side wall 31 and the second side wall 32 on the circumferential side wall 33. Further, a pressing piece 36 matched with the pressing groove is arranged on the circumferential side wall 33, and the pressing piece 36 extends out of the barrel 1 through the pressing groove. By pressing the pressing piece 36 into the barrel 1, the pressure in the medicine bag 3 is increased, so that the tearable opening 35 is broken, and the first medicine liquid and the second medicine liquid are mixed. Further, the circumferential side wall 33 is made of transparent PVC material, and the thickness of the first side wall 31 and the second side wall 32 is less than the thickness of the circumferential side wall 33. After the pressing piece 36 is pressed, the circumferential side wall 33 rebounds under the elastic action of the circumferential side wall 33, so as to avoid affecting the movement of the pressing piece 2. Further, an inclined guide surface 37 is formed at one end of the circumferential side wall 33 close to the pressing piece 2, and the guide surface 37 is inclined towards the pressing piece 2 and the inner wall of the barrel 1, so as to facilitate the pressing piece 2 to extend into the circumferential side wall 33.
[0025] Thus far, the technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without deviating from the principles of the present application, those skilled in the art can make equivalent changes or replacements to the related technical features, and the technical cases after these changes or replacements will all fall within the protection scope of the present application.
Claims
1. A drug homogenizing pre-charging device, characterized in that, The application relates to a medicine cartridge, which comprises: a barrel (1) provided with a pressing groove; a pressing piece (2) arranged in the barrel (1) in a slidable mode and in sealed connection with the barrel (1); a medicine bag (3) arranged in the barrel (1); the medicine bag (3) forms a first cavity (34) containing a first medicine liquid with the barrel (1), a second cavity containing a second medicine liquid is formed in the medicine bag (3), a tearable opening (35) is arranged on one side of the medicine bag (3) close to the first cavity (34), and a pressing piece (36) matched with the pressing groove is arranged on the medicine bag (3); the pressing piece (36) is configured to be pressed into the barrel (1) along the pressing groove to break the tearable opening (35).
2. A drug homogenizing pre-charging device according to claim 1, characterized in that, The medicine bag (3) is in sealed connection with the barrel (1) through an adhesive structure.
3. A drug homogenizing pre-charging device according to claim 2, characterized in that, The medicine bag (3) comprises a first side wall (31) close to the pressing piece (2), a second side wall (32) away from the pressing piece (2) and a circumferential side wall (33) connected with the barrel (1); an inferior arc fixing structure (39) and a superior arc tearable structure (38) are arranged between the first side wall (31) and the circumferential side wall (33).
4. A drug homogenizing pre-charging device according to claim 3, wherein, The circumferential side wall (33) is made of transparent PVC material.
5. The drug homogenizing pre-filled device of claim 3, wherein, A guide surface (37) is formed on one end of the circumferential side wall (33) close to the pressing piece (2).
6. The drug homogenizing pre-filled device of claim 3, wherein, The tearable opening (35) and the superior arc tearable structure (38) are dotted sealed openings, and the inferior arc fixing structure (39) is a solid sealed opening.