High safety factor blood bag full-automatic heat sealing instrument
The fully automatic heat sealing machine utilizes an electric slide rail and pneumatic gripper system to achieve multiple heat sealing and rapid cooling of blood bag tubing, solving the problems of low safety factor and low heat sealing efficiency in existing technologies, and improving the safety and efficiency of blood bag heat sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN CHUANGJIAWEI INSTRUMENT CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-02
AI Technical Summary
The existing heat sealing method for blood bags has a low safety factor, the number of heat sealing points cannot be adjusted, and the heat sealing efficiency is low.
A fully automatic heat sealing instrument was designed, which adopts an electric slide rail and a pneumatic gripper system. Through multiple heat sealing points combined with pneumatic cooling, it achieves efficient sealing of blood bag tubing.
It improves the safety and efficiency of blood bag heat sealing, and allows for adjustment of the number of heat sealing points as needed to ensure multiple seals in the blood bag tubing.
Smart Images

Figure CN224311235U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of blood bag heat sealing technology, and in particular relates to a fully automatic heat sealing instrument for blood bags with a high safety factor. Background Technology
[0002] Blood bags are sterile medical containers used for the collection, storage, transportation, and transfusion of blood or blood components (such as red blood cells, plasma, platelets, etc.). They are usually made of plastic materials (such as PVC or special composite materials) and contain anticoagulants and preservation solutions. Blood bags need to be connected to other tubing (such as blood collection needles, transfusion sets, etc.) during blood collection, separation, or transfusion. After the operation is completed, the tube openings must be sealed to prevent contaminants such as bacteria and viruses from entering.
[0003] Currently, blood bag tubing is typically heat-sealed using a heat-sealing machine. However, most current heat-sealing methods involve single-point heat sealing, resulting in low safety. Furthermore, the number of heat sealing points cannot be adjusted arbitrarily. Additionally, the heat sealing efficiency is low due to the waiting time between heating and cooling. Therefore, we propose a fully automated heat-sealing machine for blood bags with a high safety factor. Utility Model Content
[0004] The purpose of this invention is to provide a fully automatic heat sealing instrument for blood bags with a high safety factor, so as to solve the problems mentioned in the background art.
[0005] In view of this, the present invention provides a fully automatic heat sealing instrument for blood bags with a high safety factor, including a mounting platform, an mounting frame fixedly mounted on the rear side of the mounting platform, a limit rod fixedly mounted on one side of the top of the mounting platform, three connecting blocks rotatably mounted on the outer wall of the limit rod, and a first pneumatic gripper fixedly mounted on one side of each of the three connecting blocks.
[0006] An electric slide rail is fixedly installed on the rear inner wall of the mounting frame. A mounting plate is fixedly installed on the sliding part of the electric slide rail. A second pneumatic gripper is fixedly installed on one end of the front side of the mounting plate, and a third pneumatic gripper is fixedly installed on the other end of the front side of the mounting plate. A blood bag is provided between the two gripper parts of the second pneumatic gripper, and a blood bag tube is fixedly installed on the upper end of the blood bag.
[0007] A heating assembly, which is mounted on a first pneumatic gripper and a mounting frame, and is used to heat the blood bag tubing;
[0008] A cooling assembly is installed between the second and third pneumatic grippers and is used to cool the surface of the blood bag tubing.
[0009] In the above technical solution, the heating component further includes:
[0010] A temperature controller is fixedly installed on the top of the mounting frame. Heating plates are fixedly installed on opposite sides of the three first pneumatic gripper jaws. All six heating plates are connected to the temperature controller's power cord.
[0011] In the above technical solution, the cooling component further includes:
[0012] A connecting strip is fixedly installed between the second and third pneumatic grippers. Three nozzles are fixedly installed on the side of the connecting strip near the blood bag tubing. An air pump is fixedly installed on the front side of the mounting plate. A branch pipe is fixedly installed at the output end of the air pump. The branch pipes of the branch pipe are respectively connected to the three nozzles.
[0013] In the above technical solution, a flexible plate is further fixedly installed at the through hole on the top of the mounting platform.
[0014] In the above technical solution, a conveyor belt is further fixedly installed at the bottom of the mounting platform, and the conveyor belt is located below the elastic plate.
[0015] In the above technical solution, furthermore, silicone blocks are fixedly installed on opposite sides of the third pneumatic gripper gripper portion, and the two silicone blocks are respectively located on both sides of the blood bag tubing.
[0016] In the above technical solution, a support column is further fixedly installed on the top of the mounting platform. The support column is located on the rear side of the connecting block. Bolts are threaded on the front side of the three connecting blocks. The three bolts pass through and are threadedly connected to the support column.
[0017] The beneficial effects of this utility model are:
[0018] 1. This high-safety blood bag uses a fully automatic heat-sealing machine. First, the blood bag and blood bag tubing are clamped by the second and third pneumatic grippers. Then, the blood bag tubing is transported to the heating plates via an electric slide rail, where the heating plates heat-seal the blood bag tubing. After heat sealing, the air pump is activated to cool the heat-sealed area with air. Finally, the blood bag is placed on the elastic plate and transported away by the conveyor belt, thereby improving the heat sealing efficiency.
[0019] 2. This high-safety blood bag uses a fully automatic heat sealing machine. Before heat sealing, the bolts can be loosened and the first pneumatic gripper can be rotated, causing the first pneumatic gripper and the connecting block to rotate around the axis of the limit rod, thereby changing the number of blood bag tubing sections to be heat sealed. By controlling the three first pneumatic grippers to drive the heating plate to clamp the blood bag tubing, the clamped parts melt and combine together. Through multiple heat sealing points, the safety and sealing performance can be improved. Attached Figure Description
[0020] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a left-side view of the overall structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the regional structure of the mounting plate in this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the first pneumatic gripper in this utility model.
[0024] The markings in the diagram are as follows:
[0025] 1. Mounting plate; 2. Mounting frame; 3. Temperature controller; 4. Limiting rod; 5. First pneumatic gripper; 6. Mounting platform; 7. Conveyor belt; 8. Blood bag; 9. Second pneumatic gripper; 10. Third pneumatic gripper; 11. Electric slide rail; 12. Blood bag tubing; 13. Elastic plate; 14. Silicone block; 15. Air pump; 16. Branch pipe; 17. Connecting strip; 18. Nozzle; 19. Heating plate; 20. Connecting block; 21. Support column; 22. Bolt. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0027] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0028] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0029] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0030] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0031] Example 1:
[0032] Please see Figures 1-4As shown, this embodiment provides a fully automatic heat sealing instrument for blood bags with a high safety factor, including a mounting platform 6, an mounting frame 2 fixedly mounted on the rear side of the mounting platform 6, a limit rod 4 fixedly mounted on one side of the top of the mounting platform 6, three connecting blocks 20 rotatably mounted on the outer wall of the limit rod 4, and a first pneumatic gripper 5 fixedly mounted on one side of each of the three connecting blocks 20.
[0033] An electric slide rail 11 is fixedly installed on the rear inner wall of the mounting frame 2. A mounting plate 1 is fixedly installed on the sliding part of the electric slide rail 11. A second pneumatic gripper 9 is fixedly installed on one end of the front side of the mounting plate 1, and a third pneumatic gripper 10 is fixedly installed on the other end of the front side of the mounting plate 1. A blood bag 8 is provided between the two gripper parts of the second pneumatic gripper 9, and a blood bag tube 12 is fixedly installed on the upper end of the blood bag 8.
[0034] A heating assembly is mounted on the first pneumatic gripper 5 and the mounting frame 2, and is used to heat the blood bag tubing 12;
[0035] A cooling assembly is installed between the second pneumatic gripper 9 and the third pneumatic gripper 10 and is used to cool the surface of the blood bag tubing 12.
[0036] In this process, the second pneumatic gripper 9 is opened and clamped at the upper edge of the blood bag 8. The blood bag tube 12 is then straightened upwards and clamped by the third pneumatic gripper 10. During the clamping process, the blood bag tube 12 is clamped in the groove between the two silicone blocks 14. Then, the electric slide rail 11 is activated, which moves the mounting plate 1 to the left until the blood bag tube 12 is inserted into the gap between the heating plates 19. Next, the three first pneumatic grippers 5 are controlled to drive the heating plates 19 to clamp the blood bag tube 12, so that the clamped part melts and combines together. Before heat sealing, the bolt 22 can be loosened and the first pneumatic gripper 5 can be rotated, so that the first pneumatic gripper 5 and the connecting block 20 will rotate around the axis of the limiting rod 4, thereby changing the number of blood bag tubes 12 that are heat sealed.
[0037] Example 2:
[0038] This embodiment provides a fully automated heat sealing device for blood bags with a high safety factor. In addition to the technical solutions of the above embodiments, it also has the following technical features: the heating component includes:
[0039] Temperature controller 3 is fixedly installed on the top of the mounting frame 2. Heating plates 19 are fixedly installed on the opposite side of the gripper parts of the three first pneumatic grippers 5. All six heating plates 19 are connected to the temperature controller 3 by wires.
[0040] By activating the temperature controller 3, the heating plate 19 can be heated to a specified temperature, thereby heat-sealing the blood bag tubing 12.
[0041] Example 3:
[0042] This embodiment provides a fully automated heat sealing device for blood bags with a high safety factor. In addition to the technical solutions of the above embodiments, it also has the following technical features: the cooling component includes:
[0043] A connecting strip 17 is fixedly installed between the second pneumatic gripper 9 and the third pneumatic gripper 10. Three nozzles 18 are fixedly installed on the side of the connecting strip 17 near the blood bag tubing 12. An air pump 15 is fixedly installed on the front side of the mounting plate 1. A branch pipe 16 is fixedly installed at the output end of the air pump 15. The branch pipes of the branch pipe 16 are respectively connected to the three nozzles 18.
[0044] In this process, by activating the air pump 15, air is delivered from the air pump 15 to the nozzle 18 via the branch pipe 16. The nozzle 18 then sprays air to blow on the heat-sealed area on the blood bag tubing 12, accelerating the cooling of the heat-sealed area.
[0045] Example 4:
[0046] This embodiment provides a fully automatic heat sealing instrument for blood bags with a high safety factor. In addition to the technical solutions of the above embodiments, it also has the following technical features: an elastic plate 13 is fixedly installed at the through hole on the top of the mounting platform 6.
[0047] The elastic plate 13 provides a cushioning effect for the blood bag 8, preventing it from being damaged during its descent.
[0048] Example 5:
[0049] This embodiment provides a fully automatic heat sealing instrument for blood bags with a high safety factor. In addition to the technical solutions of the above embodiments, it also has the following technical features: a conveyor belt 7 is fixedly installed at the bottom of the mounting platform 6, and the conveyor belt 7 is located below the elastic plate 13.
[0050] Specifically, by controlling the second pneumatic gripper 9 and the third pneumatic gripper 10 to open, the blood bag 8 falls onto the elastic plate 13 and slides down the elastic plate 13 onto the conveyor belt 7, and finally the blood bag 8 is transported away by the conveyor belt 7.
[0051] Example 6:
[0052] This embodiment provides a fully automatic heat sealing instrument for blood bags with a high safety factor. In addition to the technical solution of the above embodiment, it also has the following technical features: silicone blocks 14 are fixedly installed on opposite sides of the gripper portion of the third pneumatic gripper 10, and the two silicone blocks 14 are located on both sides of the blood bag pipeline 12.
[0053] Among them, grooves are provided on opposite sides of the two silicone blocks 14, and the blood bag tube 12 is clamped in the grooves.
[0054] Example 7:
[0055] This embodiment provides a fully automatic heat sealing instrument for blood bags with a high safety factor. In addition to the technical solution of the above embodiment, it also has the following technical features: a support column 21 is fixedly installed on the top of the mounting platform 6. The support column 21 is located on the rear side of the connecting block 20. Bolts 22 are threaded on the front side of the three connecting blocks 20. The three bolts 22 pass through and are threadedly connected to the support column 21.
[0056] The connecting block 20 is locked to the support column 21 by bolt 22, thereby fixing the first pneumatic gripper 5.
[0057] Working principle: First, the second pneumatic gripper 9 opens and clamps the upper edge of the blood bag 8. Then, the blood bag tubing 12 is straightened upwards and clamped by the third pneumatic gripper 10. During clamping, the blood bag tubing 12 is clamped in the groove between the two silicone blocks 14. Next, the electric slide rail 11 is activated, moving the mounting plate 1 to the left until the blood bag tubing 12 is inserted into the gap between the heating plates 19. Then, the temperature controller 3 is activated, controlling the heating plate 19 to heat to the specified temperature. Immediately afterwards, the three first pneumatic grippers 5 drive the heating plate 19 to clamp the blood bag tubing 12, causing the clamped part to melt and bond together. Before heat sealing, the bolt 22 can be loosened and the first pneumatic grippers 5 rotated, causing the first pneumatic grippers 5 and the connecting block 20 to rotate around the axis of the limiting rod 4, thereby... The number of blood bag tubing 12 that is heat-sealed is changed, and the connecting block 20 is locked to the support column 21 by bolt 22, thereby fixing the first pneumatic gripper 5. After heat sealing is completed, the electric slide rail 11 is controlled to move the blood bag 8 to the right. During the movement, the air pump 15 is started, so that the air pump 15 delivers air to the nozzle 18 through the branch pipe 16. Then the nozzle 18 sprays air to blow on the heat-sealed area of the blood bag tubing 12 to accelerate the cooling of the heat-sealed area. When the blood bag 8 moves above the elastic plate 13, the second pneumatic gripper 9 and the third pneumatic gripper 10 are controlled to open, so that the blood bag 8 falls onto the elastic plate 13 and slides down the elastic plate 13 onto the conveyor belt 7. Finally, the conveyor belt 7 transports the blood bag 8 away. The elastic plate 13 can provide a buffer for the blood bag 8 to avoid damage during the fall.
[0058] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A fully automated heat-sealing device for blood bags with a high safety factor, characterized in that, include: Mounting platform (6), mounting frame (2) is fixedly mounted on the rear side of mounting platform (6), limiting rod (4) is fixedly mounted on one side of the top of mounting platform (6), three connecting blocks (20) are rotatably mounted on the outer wall of the limiting rod (4), and a first pneumatic gripper (5) is fixedly mounted on one side of each of the three connecting blocks (20). An electric slide rail (11) is fixedly installed on the rear inner wall of the mounting frame (2). The sliding part of the electric slide rail (11) is fixedly installed with a mounting plate (1). A second pneumatic gripper (9) is fixedly installed at one end of the front side of the mounting plate (1), and a third pneumatic gripper (10) is fixedly installed at the other end of the front side of the mounting plate (1). A blood bag (8) is provided between the two gripper parts of the second pneumatic gripper (9), and a blood bag tube (12) is fixedly installed at the upper end of the blood bag (8). A heating assembly is mounted on a first pneumatic gripper (5) and a mounting frame (2) and is used to heat the blood bag tubing (12); A cooling assembly is installed between the second pneumatic gripper (9) and the third pneumatic gripper (10) and is used to cool the surface of the blood bag tubing (12).
2. The fully automatic heat-sealing device for blood bags with a high safety factor according to claim 1, characterized in that, The heating component includes: Temperature controller (3) is fixedly installed on the top of the mounting frame (2). Heating plates (19) are fixedly installed on the opposite side of the gripper parts of the three first pneumatic grippers (5). All six heating plates (19) are connected to the temperature controller (3) by wires.
3. The fully automatic heat-sealing device for blood bags with a high safety factor according to claim 1, characterized in that, The cooling assembly includes: A connecting strip (17) is fixedly installed between the second pneumatic gripper (9) and the third pneumatic gripper (10). Three nozzles (18) are fixedly installed on the side of the connecting strip (17) near the blood bag pipeline (12). An air pump (15) is fixedly installed on the front side of the mounting plate (1). A branch pipe (16) is fixedly installed at the output end of the air pump (15). The branch pipes of the branch pipe (16) are respectively connected to the three nozzles (18).
4. The fully automatic heat-sealing device for blood bags with a high safety factor according to claim 1, characterized in that, An elastic plate (13) is fixedly installed at the through hole at the top of the mounting platform (6).
5. The fully automatic heat-sealing device for blood bags with a high safety factor according to claim 1, characterized in that, The bottom of the mounting platform (6) is fixedly equipped with a conveyor belt (7), which is located below the elastic plate (13).
6. The fully automatic heat-sealing device for blood bags with a high safety factor according to claim 1, characterized in that, Silicone blocks (14) are fixedly installed on opposite sides of the gripper portion of the third pneumatic gripper (10), and the two silicone blocks (14) are located on both sides of the blood bag tubing (12).
7. The fully automatic heat-sealing device for blood bags with a high safety factor according to claim 1, characterized in that, The mounting platform (6) is fixedly mounted with a support column (21) on top. The support column (21) is located on the rear side of the connecting block (20). The front sides of the three connecting blocks (20) are threaded with bolts (22). The three bolts (22) pass through and are threadedly connected to the support column (21).