Instant preparation type powder-liquid double-chamber bag extrusion device
By designing a ready-to-mix powder-liquid dual-chamber bag extrusion device, and utilizing the cooperation of the drive unit and silicone pad, the problem of nurses' hand soreness was solved, and the powder-liquid mixing was achieved in a time-saving and labor-saving manner, improving work efficiency and mixing uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-24
AI Technical Summary
The existing ready-to-use powder and liquid dual-chamber bags require nurses to squeeze with both hands during use, which causes hand soreness, especially for nurses with less strength, affecting work efficiency and quality of care.
Design a ready-to-mix powder-liquid dual-chamber bag extrusion device, including a support frame, a placement platform, a drive unit, an extruder, and a control switch. The control switch drives the extruder to move closer to or further away from the placement platform, replacing manual extrusion, ensuring uniform extrusion pressure, and avoiding excessive or insufficient local pressure. A silicone pad is used for buffering and fixing, improving mixing uniformity and efficiency.
It effectively reduces the work fatigue of medical staff, shortens the solution preparation time, improves work efficiency and nursing quality, and ensures the uniformity of powder-liquid mixing and the stability of the device.
Smart Images

Figure CN224029436U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, specifically to a ready-to-mix powder-liquid dual-chamber bag extrusion device. Background Technology
[0002] The ready-to-use powder-liquid dual-chamber bag contains the drug powder and the injectable solvent separately in two chambers of the same bag, separated by a slit weld. When using it, you need to press the liquid chamber with both hands overlapping to force open the slit weld, so that the powder and solvent can mix and dissolve, and then it can be infused.
[0003] Ready-to-use powder and liquid dual-chamber bags are convenient to use, highly safe, and have good stability. Currently, cephalosporin powder and liquid dual-chamber bag products occupy the mainstream position. However, nurses need to squeeze with both hands when using them, which is difficult to do manually, especially for nurses with less strength. High-frequency pressing can cause hand soreness, affecting work efficiency and nursing quality.
[0004] Therefore, this application studies a ready-to-use powder-liquid dual-chamber bag extrusion device, which has a simple structure and saves time and effort, thus helping to improve work efficiency and nursing quality. Utility Model Content
[0005] To improve work efficiency and nursing quality, this application provides a ready-to-use powder and liquid dual-chamber bag extrusion device.
[0006] This application provides a ready-to-mix powder-liquid dual-chamber bag extrusion device, which adopts the following technical solution:
[0007] A ready-to-use powder-liquid dual-chamber bag extrusion device includes a support frame, a placement platform, a drive unit, an extruder, and a control switch. One end of the support frame is mounted on one side of the placement platform, and the other end is spaced apart from the placement platform. The extruder is mounted on the side of the support frame facing the placement platform. The control switch is located on one side of the support frame and is electrically connected to the drive unit. The extruder is connected to the output end of the drive unit. The control switch controls the drive unit to move the extruder closer to or further away from the placement platform.
[0008] By adopting the above technical solution, the ready-to-mix powder-liquid dual-chamber bag is placed on the placement table. By turning on the control switch, the drive unit moves the extruder close to the placement table. At this time, the extruder can squeeze the dual-chamber bag, thereby breaking open the false weld seam and mixing the powder and liquid. This can replace manual squeezing, avoid excessive hand fatigue of medical staff when squeezing the dual-chamber bag at high frequency, effectively reduce work fatigue, and ensure squeezing pressure through the extruder, shorten the solution preparation time, thereby improving work efficiency and nursing quality.
[0009] Optionally, the extrusion member has an elliptical cylindrical structure.
[0010] By adopting the above technical solution, the surface of the ready-to-mix powder-liquid dual-chamber bag can be better adhered to, ensuring more uniform force application during the extrusion process and avoiding excessive or insufficient local force, thereby improving the uniformity and efficiency of powder-liquid mixing.
[0011] Optionally, a first silicone pad is provided on the side of the extruder facing the placement table.
[0012] By adopting the above technical solution, the ready-to-use powder-liquid double-chamber bag can be buffered during the extrusion process, avoiding damage to the surface of the double-chamber bag due to hard contact, thereby extending the service life of the double-chamber bag and ensuring its sealing performance.
[0013] Optionally, a second silicone pad is provided on the side of the placement platform facing the extruder.
[0014] By adopting the above technical solution, in conjunction with the first and second silicone pads, a better fit can be achieved on the surface of the double-chamber bag, ensuring more uniform force application during extrusion. This not only improves the uniformity and efficiency of powder-liquid mixing but also avoids problems such as insufficient mixing or incomplete opening of weak welds caused by uneven local force application.
[0015] Optionally, the placement platform is provided with a snap-fit component, the snap-fit component having a snap-fit interface for snapping into a ready-to-use powder-liquid dual-chamber bag.
[0016] By adopting the above technical solution, the liquid outlet of the double-chamber bag is snapped into the snap-fit opening, preventing displacement or slippage during squeezing, thereby ensuring the accuracy and reliability of the squeezing operation.
[0017] Optionally, a counterweight is provided on the side of the placement platform away from the extruder.
[0018] By adopting the above technical solution, the overall stability of the device can be effectively increased, preventing the device from tipping over or shaking due to external force or movement of the extruder during the extrusion process, thereby ensuring the smoothness and reliability of the extrusion operation.
[0019] Optionally, an indicator light is provided on the support frame, and the indicator light is electrically connected to the control switch.
[0020] By adopting the above technical solution, the working status of the device can be understood through indicator lights.
[0021] In summary, this application includes the following beneficial technical effects:
[0022] 1. Place the ready-to-use powder-liquid dual-chamber bag on the placement table. Turn on the control switch to drive the extruder to approach the placement table. The extruder can then squeeze the dual-chamber bag, breaking open any loose welds and mixing the powder and liquid. This method can replace manual squeezing, avoiding excessive hand fatigue for medical staff when squeezing the dual-chamber bag frequently, effectively reducing work fatigue. Furthermore, the squeezing force can be effectively guaranteed by the extruder, shortening the solution preparation time, thereby improving work efficiency and nursing quality.
[0023] 2. It can better fit the surface of the ready-to-mix powder and liquid dual-chamber bag, ensuring more uniform force during extrusion and avoiding excessive or insufficient force in some areas, thereby improving the uniformity and efficiency of powder and liquid mixing;
[0024] 3. The flexibility of the first and second silicone pads allows for better conformation to the surface of the double-chamber bag, ensuring more even force application during extrusion. This not only improves the uniformity and efficiency of powder-liquid mixing but also avoids problems such as insufficient mixing or incomplete opening of weak welds caused by uneven localized force. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.
[0026] In the diagram:
[0027] Figure 1 This is a schematic diagram of the structure of the dual-chamber bag extrusion device for compounded powder and liquid according to an embodiment of this application.
[0028] Reference numerals in the attached drawings: 1. Support frame; 2. Placement platform; 3. Drive component; 4. Extrusion component; 5. Control switch; 6. First silicone pad; 7. Second silicone pad; 8. Snap-fit component; 9. Indicator light; 10. Counterweight. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.
[0030] This application discloses a ready-to-use powder-liquid dual-chamber bag extrusion device. (Refer to...) Figure 1The instant powder / liquid dual-chamber bag extrusion device includes a support frame 1, a placement platform 2, a drive component 3, an extruder 4, and a control switch 5. The support frame 1 has a C-shaped structure, and the support frame 1, placement platform 2, and extruder 4 are all made of plastic. One end of the support frame 1 is screwed to one side of the placement platform 2, and the other end is spaced apart from the placement platform 2. The extruder 4 is screwed to the side of the support frame 1 facing the placement platform 2, i.e., when the dual-chamber bag is placed on the placement platform 2, the extruder 4 is positioned above the dual-chamber bag. The control switch 5 is located on one side of the support frame 1 and is electrically connected to the drive component 3. The extruder 4 is bonded to the output end of the drive component 3. In this embodiment, the drive component 3 is a telescopic cylinder, and the extruder 4 is connected to the piston rod of the drive component 3. The control switch 5 controls the drive component 3 to move the extruder 4 closer to or further away from the placement platform 2.
[0031] The solvent chamber of the double-chamber bag is placed below the extruder 4. Turning on the control switch 5 controls the drive unit 3 to push the extruder 4 into the solvent chamber, causing the liquid to breach the weld seam and mix the solvent with the powder. This method replaces manual extrusion, avoiding excessive hand fatigue for medical staff during frequent extrusion of the double-chamber bag, effectively reducing work fatigue. Furthermore, the extrusion by the extruder 4 effectively maintains the extrusion pressure, shortening the solution preparation time, thereby improving work efficiency and nursing quality. In addition, the device of this application has a simple structure, is easy to operate, and saves time and effort.
[0032] In some embodiments, the extruder 4 has an elliptical cylindrical structure. This allows for better conforming to the surface of the ready-to-mix powder-liquid dual-chamber bag, ensuring more uniform force application during extrusion and avoiding excessive or insufficient localized force, thereby improving the uniformity and efficiency of powder-liquid mixing.
[0033] In some embodiments, a first silicone pad 6 is bonded to the side of the extruder 4 facing the placement platform 2. The shape of the first silicone pad 6 matches the shape of the extruder 4. The first silicone pad 6 is elastic and can still apply a certain amount of pressure, so as to prevent the outer surface of the double-chamber bag from rupturing while punching open the false weld seam, thus ensuring its sealing performance.
[0034] In some embodiments, a second silicone pad 7 is provided on the side of the placement platform 2 facing the extruder 4. The first silicone pad 6 and the second silicone pad 7 work together to better conform to the surface of the double-chamber bag, ensuring more uniform force application during extrusion. This not only improves the uniformity and efficiency of powder-liquid mixing but also avoids problems such as insufficient mixing or incomplete opening of weak welds caused by uneven local force application.
[0035] In some embodiments, a snap-fit element 8 is provided on the placement platform 2. The second silicone pad 7 does not fully cover the placement platform 2. The snap-fit element 8 is located on one side of the second silicone pad 7 and screwed onto the placement platform 2. The snap-fit element 8 has a snap-fit interface with a "U"-shaped opening. The snap-fit interface is used to snap-fit the ready-to-use powder / liquid dual-chamber bag. When the dual-chamber bag needs to be pressed, the solvent chamber of the dual-chamber bag is placed on the second silicone pad 7, and the liquid outlet of the dual-chamber bag is snapped onto the snap-fit interface, thereby fixing the dual-chamber bag and preventing it from shifting during pressing, thus allowing for more accurate pressing.
[0036] In some embodiments, a counterweight 10 is attached to the side of the placement platform 2 opposite to the extruder 4. This effectively increases the overall stability of the device and prevents the device from tipping over or shaking due to external forces or the movement of the extruder 4 during the extrusion process, thereby ensuring the smoothness and reliability of the extrusion operation.
[0037] In some embodiments, an indicator light 9 is provided on the support frame 1, and the indicator light 9 is electrically connected to the control switch 5. The operating status of the device can be understood through the indicator light 9.
[0038] The implementation principle of the ready-to-mix powder-liquid dual-chamber bag squeezing device in this application embodiment is as follows: the ready-to-mix powder-liquid dual-chamber bag is placed on the placement platform 2, and the control switch 5 is turned on to drive the extruder 4 close to the placement platform 2. At this time, the extruder 4 can squeeze the dual-chamber bag, thereby breaking open the false weld seam and mixing the powder and liquid. It can replace manual squeezing, avoid the excessive fatigue of medical staff's hands when squeezing the dual-chamber bag at high frequency, effectively reduce work fatigue, and the squeezing by the extruder 4 can effectively ensure the squeezing force, shorten the liquid preparation time, thereby improving work efficiency and nursing quality.
[0039] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.
[0040] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the associatedly listed items. The embodiment numbers disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0041] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.
Claims
1. A ready-to-use powder-liquid dual-chamber bag extrusion device, characterized in that: The device includes a support frame, a placement platform, a drive unit, an extrusion component, and a control switch. One end of the support frame is mounted on one side of the placement platform, and the other end is spaced apart from the placement platform. The extrusion component is mounted on the side of the support frame facing the placement platform. The control switch is located on one side of the support frame and is electrically connected to the drive unit. The extrusion component is connected to the output end of the drive unit. The control switch controls the drive unit to move the extrusion component closer to or away from the placement platform.
2. The ready-to-use powder-liquid dual-chamber bag extrusion device according to claim 1, characterized in that: The extruded component has an elliptical cylindrical structure.
3. The ready-to-use powder-liquid dual-chamber bag extrusion device according to claim 1, characterized in that: A first silicone pad is provided on the side of the extruder facing the placement table.
4. A ready-to-use powder-liquid dual-chamber bag extrusion device according to claim 1 or 3, characterized in that: A second silicone pad is provided on the side of the placement platform facing the extruder.
5. The ready-to-use powder-liquid dual-chamber bag extrusion device according to claim 1, characterized in that: The placement platform is equipped with a snap-fit component, which has a snap-fit interface for snapping into a ready-to-use powder / liquid dual-chamber bag.
6. The ready-to-use powder-liquid dual-chamber bag extrusion device according to claim 1, characterized in that: A counterweight is provided on the side of the placement platform away from the extruder.
7. The ready-to-use powder-liquid dual-chamber bag extrusion device according to claim 1, characterized in that: An indicator light is provided on the support frame, and the indicator light is electrically connected to the control switch.