Method and device for oxygen removal from a soft bag powder chamber

Abstract

The application discloses a soft bag powder cavity oxygen discharging method and device, and the method comprises the following steps: reducing the oxygen content in the soft bag filled with powder by inflation, and the method comprises a bag opening mechanism and an inflation needle; the bag opening mechanism opens the soft bag from both sides of the soft bag to form an inflation port; the end of the inflation needle is provided with a profiling part matched with the inflation port; a plurality of gas outlets are arranged on the side wall of the profiling part; and the profiling part is inserted into the soft bag above the powder to perform inflation and oxygen discharging; the oxygen discharging device comprises the bag opening mechanism, which is arranged on both sides of the soft bag to open the soft bag and form the inflation port; the inflation needle, and the end of the inflation needle is provided with the profiling part matched with the inflation port; a plurality of gas outlets are arranged on the side wall of the profiling part; and the profiling part is inserted into the soft bag above the powder to perform inflation and oxygen discharging; and the application can improve the gas supply pressure of the inflation mechanism on the inflation needle, so that the disturbance to the powder can be reduced, and the inflation efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder-liquid dual-chamber bag inflation, in particular to a soft-bag powder chamber oxygen removal method and device. BACKGROUND

[0002] The powder-liquid dual-chamber bag large infusion product is an injection product containing infusion and sterile powder made of non-PVC infusion special film material; it is convenient and fast to use clinically, safe and reliable for medication, and is the most safe and reliable large infusion product recognized by the world at present.

[0003] At present, for the sterile powder product requiring inert gas protection, the powder chamber needs to be filled with inert gas (usually nitrogen). The existing process equipment adopts the method of filling powder, then tracking nitrogen filling and resealing, or setting an independent inflation process and resealing, which cannot meet the product quality requirements of low residual oxygen content. Due to the physical properties of sterile powder itself, dust will be generated under the action of airflow. In order to avoid the influence of dust generation on the heat sealing of the bag opening during the inflation process, a smaller inflation pressure and flow are usually used for oxygen replacement in the bag, which requires a longer inflation time, resulting in very low overall production capacity of the production line, which cannot meet the large-scale automatic production requirements. How to quickly inflate and replace the powder chamber, ensure the residual oxygen content requirements, and improve the product quality and production capacity is a technical problem to be solved at present. SUMMARY

[0004] The purpose of the present application is to provide a soft-bag powder chamber oxygen removal method and device, which solves the problem that it is difficult to simultaneously reduce dust and improve inflation efficiency in the inflation process of the prior art.

[0005] The present application is implemented in the following manner: a soft-bag powder chamber oxygen removal method reduces the oxygen content in a soft bag containing powder through inflation, and includes an opening mechanism and an inflation needle. The opening mechanism opens the soft bag from both sides to form an inflation port, and the end of the inflation needle is provided with a contoured portion adapted to the inflation port. A plurality of gas outlets are arranged on the side wall of the contoured portion, and the contoured portion extends into the soft bag above the powder for inflation and oxygen removal.

[0006] After the soft bag containing powder arrives at the oxygen venting station, it is opened by the opening mechanisms on both sides, forming an inflation port. The end of the inflation needle has a conforming part adapted to the inflation port, with an air outlet on the conforming part. The conforming part extends above the powder inside the soft bag, and the air outlet vents the oxygen inside the soft bag. The conforming part is adapted to the inflation port, making full use of the space within the inflation port. Compared to the end of existing circular inflation needles, the conforming part in this invention has a larger surface area, allowing for more air outlets compared to existing technologies, or the same number of air outlets as existing technologies. The diameter of the air outlet in this invention... The gas pressure from a single outlet of the inflation needle is lower than that of existing needles, resulting in less disturbance to the powder inside the soft bag compared to existing methods, when the same inflation pressure and flow rate of gas enter the inflation needle from the inflation mechanism. Furthermore, the length of the outlet on the contoured part is generally greater than that of the outlet at the end of existing circular inflation needles. Therefore, the pressure of gas exiting the outlet of the contoured part is lower than that of existing needles, resulting in less disturbance to the powder inside the soft bag compared to existing methods. Thus, by increasing the gas supply pressure from the inflation mechanism to the inflation needle, this invention not only ensures reduced disturbance to the powder but also improves inflation efficiency.

[0007] A further technical solution of the present invention is that the cross-section of the contoured part is rhomboid or elliptical.

[0008] The air inlet of the opening mechanism is diamond-shaped or elliptical, and the conforming part is adapted to the air inlet in a diamond or elliptical shape.

[0009] A further technical solution of the present invention is that the contoured part is rhomboid, and the included angle b in the length direction is 30°-60°.

[0010] The contoured part is rhomboid in shape with an included angle of 30-60° along its length, making full use of the space in the air inlet and ensuring that the surface area of ​​the contoured part in the same air inlet is greater than that of the cylindrical part.

[0011] A further technical solution of the present invention is that the angle α between the air outlet on the side wall and the horizontal plane is 0°-60°.

[0012] From this angle, the disturbance to the powder below can be minimized, thus avoiding dust.

[0013] A further technical solution of the present invention is: the contouring part is placed between the air inlet and the powder, and the top of the contouring part is provided with multiple air outlets.

[0014] The contouring part is placed between the air inlet and the powder. The entire contouring part is inside the soft bag, and an air outlet is provided at the top. The air outlet is set on the outer periphery of the contouring part to reduce the disturbance to the powder during the oxygen release process.

[0015] A further technical solution of the present invention is: one end of the contoured part is placed inside the soft bag and the other end is placed outside the soft bag.

[0016] A further technical solution of the present invention is: the end of the inflation needle away from the contour part is connected to the inflation mechanism, and the inflation needle is connected to the inflation mechanism.

[0017] The inflation needle is connected to the inflation mechanism, and inert gas that protects the powder enters the inflation needle from the inflation mechanism, making it easy to disassemble and clean the inflation needle offline.

[0018] A further technical solution of the present invention is that the inflation needle and the inflation mechanism are detachably connected by a connector, the connector including a hose and a quick-release chuck.

[0019] Both the hose and the quick-release chuck are easy to install and remove.

[0020] The present invention also provides a soft bag powder chamber oxygen venting device, comprising:

[0021] The bag opening mechanism is located on both sides of the soft bag to open the soft bag and form an inflation port;

[0022] The inflation needle has a contoured part at its end that matches the inflation port. The contoured part has multiple air outlets on its side wall. The contoured part extends from the inflation port to the top of the powder inside the soft bag to inflate and de-oxygenate.

[0023] The beneficial effects of this invention are as follows: After the soft bag containing powder arrives at the oxygen removal station, the soft bag is opened by the opening mechanism on both sides, forming an inflation port on the soft bag. The end of the inflation needle is provided with a conforming part adapted to the inflation port, and the conforming part is provided with an air outlet. The conforming part extends into the soft bag above the powder, and the air outlet discharges the oxygen inside the soft bag. The conforming part is adapted to the inflation port, making full use of the space of the inflation port. Compared with the existing circular inflation needle end, the conforming part in this invention has a larger surface area, allowing for more air outlets compared to the prior art, or the same number of air outlets as the prior art. The larger diameter of the air inlet means that, with the same inflation pressure and flow rate, the gas pressure exiting from a single outlet of the inflation needle in this invention is lower, resulting in less disturbance to the powder inside the soft bag compared to existing methods. Simultaneously, the length of the air outlet on the contoured part is mostly greater than the length of the air outlet at the end of existing circular inflation needles. Therefore, with the same inflation pressure and flow rate, the pressure of the gas exiting from the outlet of the contoured part is lower, resulting in less disturbance to the powder inside the soft bag compared to existing methods. Thus, this invention, by increasing the air supply pressure from the inflation mechanism to the inflation needle, not only ensures reduced disturbance to the powder but also improves inflation efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic flowchart of a soft bag powder cavity oxygen removal method provided by the present invention;

[0025] Figure 2 This is a schematic diagram of a soft bag powder cavity oxygen removal method provided by the present invention;

[0026] Figure 3 This is a partial top view of a soft bag powder cavity oxygen removal method provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the soft bag with an openable design provided by the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the inflation needle provided by the present invention;

[0029] Figure 6 A perspective view of the inflation needle provided by this invention;

[0030] Figure 7 This is a cross-sectional view of the inflation needle provided by the present invention;

[0031] Figure 8 This is a top view of the inflation needle provided by the present invention.

[0032] Reference numerals: 1. Bag opening mechanism, 2. Inflation needle, 3. Inflation port, 4. Contouring part, 5. Air outlet, 51. Upper air hole, 52. Long side air hole, 53. Side air hole, 6. Connector. Detailed Implementation

[0033] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0034] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0035] Example 1:

[0036] Figures 1-8 A method for venting oxygen from a soft bag containing powder is shown. The method reduces the oxygen content in the soft bag containing powder by inflating it. The method includes a bag opening mechanism 1 and an inflation needle 2. The bag opening mechanism 1 opens the soft bag from both sides to form an inflation port 3. The end of the inflation needle 2 is provided with a contoured part 4 that is adapted to the inflation port 3. The contoured part 4 has multiple air outlets 5 on its side wall. The contoured part 4 extends from the inflation port 3 to the top of the powder in the soft bag to vent oxygen.

[0037] After the soft bag containing powder arrives at the oxygen venting station, it is opened by the opening mechanisms on both sides, forming an inflation port. The end of the inflation needle has a conforming part adapted to the inflation port, with an air outlet on the conforming part. The conforming part extends above the powder inside the soft bag, and the air outlet vents the oxygen inside the soft bag. The conforming part is adapted to the inflation port, making full use of the space within the inflation port. Compared to the end of existing circular inflation needles, the conforming part in this invention has a larger surface area, allowing for more air outlets compared to existing technologies, or the same number of air outlets as existing technologies. The diameter of the air outlet in this invention... The gas pressure from a single outlet of the inflation needle is lower than that of existing needles, resulting in less disturbance to the powder inside the soft bag compared to existing methods, when the same inflation pressure and flow rate of gas enter the inflation needle from the inflation mechanism. Furthermore, the length of the outlet on the contoured part is generally greater than that of the outlet at the end of existing circular inflation needles. Therefore, the pressure of gas exiting the outlet of the contoured part is lower than that of existing needles, resulting in less disturbance to the powder inside the soft bag compared to existing methods. Thus, by increasing the gas supply pressure from the inflation mechanism to the inflation needle, this invention not only ensures reduced disturbance to the powder but also improves inflation efficiency.

[0038] In this embodiment, the bag opening mechanism is a suction cup that opens the soft bag.

[0039] In this embodiment, the soft bag is opened from both sides of the top center via an opening mechanism.

[0040] In another embodiment, the contouring part 4 is elliptical.

[0041] The air inlet of the opening mechanism is diamond-shaped or elliptical, and the conforming part is adapted to the air inlet in a diamond or elliptical shape.

[0042] In this embodiment, the contouring part 4 is rhomboid, and the included angle b in the length direction is 30°-60°.

[0043] The contoured part is rhomboid in shape with an included angle of 30-60° along its length, making full use of the space in the air inlet and ensuring that the surface area of ​​the contoured part in the same air inlet is greater than that of the cylindrical part.

[0044] In this embodiment, the angle α between the air outlet 5 on the side wall and the horizontal plane is 0°-60°.

[0045] From this angle, the disturbance to the powder below can be minimized, thus avoiding dust.

[0046] In this embodiment, the contouring part is rhomboid in shape. The top of the contouring part has an upper air hole 51, and both ends of the contouring part have long-side air holes 52. Side air holes 53 are located on the outer periphery of the contouring part between the long-side air holes. The angle α between the air outlet 5 and the horizontal plane can be set from 0 to 60°, preferably from 5° to 30°. Clearly, the length of the long-side air holes and most of the side air holes is greater than the length of the air outlet at the end of the existing inflation needle within the same inflation port.

[0047] In this embodiment, the contouring part 4 is placed between the air inlet 3 and the powder, and the top of the contouring part 4 is provided with multiple air outlets 5.

[0048] The contouring part is placed between the air inlet and the powder. The entire contouring part is inside the soft bag, and an air outlet is provided at the top. The air outlet is set on the outer periphery of the contouring part to reduce the disturbance to the powder during the oxygen release process.

[0049] In another embodiment, one end of the contoured part 4 is placed inside the soft bag and the other end is placed outside the soft bag.

[0050] In this embodiment, the end of the inflation needle 2 away from the contour part 4 is connected to the inflation mechanism, and the inflation needle 2 and the inflation mechanism are detachably connected.

[0051] The inflation needle is connected to the inflation mechanism, and inert gas that protects the powder enters the inflation needle from the inflation mechanism, making it easy to disassemble and clean the inflation needle offline.

[0052] In this embodiment, the inflation needle 2 and the inflation mechanism are detachably connected by a connector 6, which includes a hose and a quick-release chuck.

[0053] Both the hose and the quick-release chuck are easy to install and remove.

[0054] Example 2:

[0055] Figures 2-8 A soft-bag powder chamber oxygen venting device is shown, comprising:

[0056] The bag opening mechanism 1 is located on both sides of the soft bag to open the soft bag and form an inflation port 3;

[0057] The inflation needle 2 has a contoured part 4 at its end that is adapted to the inflation port 3. The contoured part 4 has multiple air outlets 5 on its side wall. The contoured part 4 extends from the inflation port 3 to the top of the powder in the soft bag to inflate and de-oxygenate.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for venting oxygen from a soft bag containing powder, comprising a bag opening mechanism (1) and an inflation needle (2), wherein the bag opening mechanism (1) opens the soft bag from both sides to form an inflation port (3), characterized in that, The end of the inflation needle (2) is provided with a contour part (4) that is adapted to the inflation port (3). Multiple air outlets (5) are provided on the side wall of the contour part (4). The contour part (4) extends from the inflation port (3) to the top of the powder in the soft bag for inflation and oxygen removal. The angle α between the air outlet (5) on the side wall and the horizontal plane is 0°-60°.

2. The method for oxygen removal from a soft bag powder chamber according to claim 1, characterized in that, The cross-section of the contoured part (4) is rhomboid or elliptical.

3. The method for oxygen removal from a soft bag powder chamber according to claim 1, characterized in that, The contour part (4) is rhomboid, and the included angle b in the length direction is 30°-60°.

4. The method for oxygen removal from a soft bag powder chamber according to claim 1, characterized in that, The contouring part (4) is placed between the air inlet (3) and the powder, and the top of the contouring part (4) is provided with multiple air outlets (5).

5. The method for oxygen removal from a soft bag powder chamber according to claim 1, characterized in that, The end of the inflation needle (2) away from the contour part (4) is connected to the inflation mechanism, and the inflation needle (2) is detachably connected to the inflation mechanism.

6. The method for oxygen removal from a soft bag powder chamber according to claim 4, characterized in that, The inflation needle (2) is detachably connected to the inflation mechanism via a connector (6), which includes a hose and a quick-release chuck.

7. A soft-bag powder chamber oxygen degassing device, characterized in that, include: The bag opening mechanism (1) is located on both sides of the soft bag to open the soft bag and form an inflation port (3); An inflation needle (2) is provided at the end of which is a contour part (4) adapted to the inflation port (3). Multiple air outlets (5) are provided on the side wall of the contour part (4). The contour part (4) extends from the inflation port (3) to the top of the powder in the soft bag for inflation and oxygen removal. The angle α between the air outlet (5) on the side wall and the horizontal plane is 0°-60°.

Images