Plasma releasing device of plasma bag breaking machine

By working together with the cutter assembly and the turntable assembly, the problems of plasma residue and contamination in the plasma bag release device are solved, and rapid and continuous plasma release is achieved.

CN223529770UActive Publication Date: 2025-11-11CHENGDU HENGBIKANG TECH CO LTD
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Patent Information

Application Number
CN202422565394.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-11-11
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

Existing plasma bag release devices suffer from problems such as large residual plasma volume, long discharge time, and high risk of contamination.

Method used

The device employs a cutting assembly and a turntable assembly working together to continuously release plasma by cutting the infusion tube and severing the plasma bag, combined with the rotation of the turntable.

Benefits of technology

It shortens the plasma release time, reduces plasma residue and contamination risk, and improves the continuity and efficiency of operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mechanical equipment, in particular to a plasma releasing device of a plasma bag breaking machine. According to the blood bag cutting device, the cutter assembly, the rotating disc driving assembly and the clamping assembly are arranged, when the blood bag cutting device is used, the cutter assembly is used for cutting off a blood bag, the rotating disc assembly is further arranged on the supporting piece, the rotating disc assembly is symmetrically arranged along the cutter assembly, the rotating disc assembly is used for clamping and releasing the blood bag, and the actions are repeated; the whole process is convenient and fast, continuity is achieved, cleaning parts are reduced, cleaning dead zones are reduced, pollution is reduced, meanwhile, the plasma exposure time can be further shortened, and the plasma pollution risk is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a plasma release device for a plasma bag breaking machine. Background Technology

[0002] Currently, plasma separation and delivery technology is widely used in clinical medicine and hemodialysis. In existing technologies, plasma bags typically contain frozen plasma in a solid state. The commonly used plasma bag release mechanism involves making a cut in the blood bag and then using rollers to apply pressure to squeeze the plasma out. While this method simplifies the plasma delivery process, it also has some significant drawbacks.

[0003] First, using rollers to squeeze blood bags can easily lead to plasma residue remaining inside the bag during the extraction process. Second, the roller squeezing method takes a long time to break the bag open. Furthermore, the rolling operation may damage the label on the blood bag, contaminating the plasma. Additionally, the squeezing process may cause plasma to spray onto surrounding transmission components, increasing the difficulty of spray cleaning and hindering aseptic plasma production.

[0004] In summary, there is an urgent need for a plasma release device for a plasma bag breaking machine that can shorten the discharge time, reduce plasma residue, and reduce plasma contamination. Utility Model Content

[0005] The purpose of this invention is to provide a plasma release device for a plasma bag breaking machine, which can shorten the discharge time, reduce the amount of residual plasma, and reduce plasma pollution, in order to address the problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A plasma release device for a plasma bag breaking machine includes a support member, which includes a first support member and a second support member. A blood bag support member is provided below the second support member, and a cutter assembly is provided above the blood bag support member. The cutter assembly is used to cut the blood bag. A turntable assembly is also provided on the support member. The turntable assembly is symmetrically arranged along the cutter assembly and is used to hold and release the blood bag.

[0008] Preferably, the cutting assembly includes a cutting cylinder, a main blade, and a secondary blade. The main blade and the secondary blade are provided with a fixing plate at the ends away from the blood bag. There are two secondary blades, symmetrically arranged on both sides of the main blade. The output end of the cutting cylinder is connected to the fixing plate to control the movement of the main blade and the secondary blade.

[0009] Preferably, the cutting assembly is arranged perpendicular to the blood bag support.

[0010] Preferably, the turntable assembly includes a turntable drive assembly and a clamping assembly, the clamping assembly being used to clamp the plasma bag, and the turntable drive assembly being used to drive the clamping assembly to rotate.

[0011] Preferably, the turntable drive assembly includes a motor, a synchronous belt, and pulleys. The pulleys include a driving pulley and a driven pulley. The output end of the motor is connected to the driving pulley. The clamping assembly has a rotating shaft at its center, which is connected to the driven pulley. The motor drives the clamping assembly to rotate.

[0012] Preferably, the clamping assembly includes a housing, with a movable clamping block and a fixed clamping block on the outer side of the housing. The movable clamping block and the fixed clamping block are arranged opposite to each other. A lifting cylinder and a Z-arm are provided inside the housing. The output end of the lifting cylinder is connected to the Z-arm, and the other end of the Z-arm extends out of the housing and is connected to the movable clamping block.

[0013] Preferably, the shell is a cylinder.

[0014] Preferably, the movable clamping block, the fixed clamping block, the lifting cylinder, and the Z-arm are evenly arranged in four sets on the housing.

[0015] Preferably, each of the movable clamping blocks is further provided with a pipe cutter on its inner side.

[0016] Preferably, the blood bag support includes a base plate and two columns arranged in parallel, with the gap between them used for the passage of the main blade.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] This application includes a cutting assembly, a turntable drive assembly, and a clamping assembly. During use, after the plasma bag is transported to the plasma bag support, a set of lifting cylinders in the symmetrically arranged turntable assembly simultaneously extends, and the symmetrically arranged movable clamping blocks descend accordingly, clamping the left and right wings of the plasma bag together with the fixed clamping blocks. At this time, the tube-cutting blade located on the movable clamping block cuts the infusion tube on the plasma bag, allowing the plasma in the infusion tube to flow out, facilitating further plasma release. Then, the cutting cylinder extends, driving the main blade and the auxiliary blade towards the plasma bag. The main blade cuts through the plasma bag, and the auxiliary blade cuts open the plasma bag. Subsequently, the symmetrically arranged turntable drive assembly operates simultaneously, driving the two turntable assemblies to rotate 90° in opposite directions. For example, if the left turntable assembly rotates clockwise by 90°... At 0°, the right turntable assembly rotates 90° counterclockwise. During the rotation, the two turntable assemblies respectively throw half a bag of plasma out of the plasma bag, thus completing the release action of the plasma bag. The next plasma bag is then transported to the plasma bag support, and the above action is repeated to complete the release action of the next plasma bag. During this process, the movable clamping block and fixed clamping block of the previous plasma bag clamped by the two turntable assemblies are released under the retraction of the corresponding lifting cylinder, and the two half bags of plasma are released. By repeating the above action, the continuous release of plasma from the plasma bag can be completed. The whole process is convenient, fast and continuous, reduces the number of cleaning parts, reduces the dead zone of cleaning, reduces contamination, and can further shorten the plasma exposure time and reduce the risk of plasma contamination. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a partial structural schematic diagram of the cutting blade assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the turntable assembly on one side of this utility model;

[0023] Figure 5 This is a schematic diagram of the bottom structure of the plasma bag support component of this utility model.

[0024] Figure descriptions: 1-Support component, 2-Blood bag support component, 21-Base plate, 22-Column, 3-Cuter assembly, 31-Cuter cylinder, 32-Main blade, 33-Secondary blade, 34-Mounting plate, 4-Blood bag, 5-Turntable assembly, 51-Clamping assembly, 511-Lifting cylinder, 512-Z-arm, 513-Modible clamping block, 514-Fixed clamping block, 515-Tube cutting blade, 516-Housing, 52-Turntable drive assembly, 521-Motor, 522-Synchronous belt, 523-Drive wheel, 524-Driven wheel. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0027] Example 1

[0028] A plasma release device for a plasma bag breaking machine includes a support member 1, a blood bag support member 2 below the support member 1, and a cutter assembly 3 above the blood bag support member 2 for cutting the blood bag 4. A turntable assembly 5 is also provided on the support member 1, symmetrically arranged along the cutter assembly 3, and used to hold and release the blood bag 4. The support member 1... Figure 1 As shown, two support plates can be set. The cutting assembly 3 includes a cutting cylinder 31, a main blade 32, and a secondary blade 33. The main blade 32 and the secondary blade 33 are provided with a mounting plate 34 at the ends away from the blood bag 4. There are two secondary blades 33, which are symmetrically arranged on both sides of the main blade 32. The output end of the cutting cylinder 31 is connected to the mounting plate 34 to control the movement of the main blade 32 and the secondary blade 33. The cutting cylinder 31 can be mounted on the upper support plate. The output point of the cutting cylinder 31 can be set as shown in the figure. The output end is connected to the fixing plate. The two ends of the fixing plate are connected to the mounting plate 34 through a rotating shaft. When cutting the bag, the plasma bag can be subjected to more balanced force. The mounting plate 34, as shown in the figure, can be set as a cross shape. The main blade 32 and the auxiliary blade 33 are both set on the mounting plate 34 in a detachable connection manner. As shown in the figure of this application, they can be set in the form of clamping blocks and nuts and bolts, or they can be set by snap-fit, as long as the detachable function can be achieved, which is convenient for subsequent replacement and cleaning. The structure of the auxiliary blade 33 and the main blade 32 is shown in the figure. The blade can be set as a sharp serrated structure. In use, the main blade 32 cuts the plasma bag, and the auxiliary blade 33 cuts but does not cut the plasma bag. This is achieved by adjusting the height difference between the auxiliary blade 33 and the main blade 32 when setting.

[0029] Specifically, the cutting blade assembly 3 is arranged perpendicularly to the blood bag support 2. The main blade 32 and the secondary blade 33 are arranged perpendicularly to the plane of the blood bag support 2, which allows for faster cutting of the bag.

[0030] Specifically, the turntable assembly 5 includes a turntable drive assembly 52 and a clamping assembly 51. The clamping assembly 51 is used to clamp the plasma bag, and the turntable drive assembly 52 is used to drive the clamping assembly 51 to rotate. The clamping assembly 51 is used to clamp both ends of the plasma bag. The turntable drive assembly 52 includes a motor 521, a synchronous belt 522, and pulleys. The pulleys include a driving pulley 523 and a driven pulley 524. The output end of the motor 521 is connected to the driving pulley 523. The clamping assembly 51 has a central rotating shaft connected to the driven pulley 524. The motor 521 drives the clamping assembly 51 to rotate. The motor 521 drives the driving pulley 523 to rotate, which in turn drives the driven pulley 524 to rotate, and then drives the clamping assembly 51 to rotate via the rotating shaft.

[0031] Specifically, the clamping assembly 51 includes a housing 516. A movable clamping block 513 and a fixed clamping block 514 are provided on the outer side of the housing 516. The movable clamping block 513 and the fixed clamping block 514 are arranged opposite to each other. A lifting cylinder 511 and a Z-arm 512 are provided inside the housing 516. The output end of the lifting cylinder 511 is connected to the Z-arm 512, and the other end of the Z-arm 512 extends out of the housing 516 and connects to the movable clamping block 513. The housing 516 is cylindrical. Through the structural arrangement of the lifting cylinder 511 and the Z-arm, the movement of the movable clamping block 513 is driven, realizing the clamping and releasing of the movable clamping block 513 and the fixed clamping block 514.

[0032] Specifically, four sets of the movable clamping block 513, the fixed clamping block 514, the lifting cylinder 511, and the Z-arm 512 are evenly arranged on the housing 516. In use, rotation can be achieved through rotation.

[0033] Furthermore, each of the movable clamping blocks 513 is also provided with a tube-cutting blade 515 on its inner side. As shown in the figure, the tube-cutting blade 515 is located inside the movable clamping block 513 and is detachably connected to the interactive clamping block. As shown in the figure, it can be configured with a blade at the lower end and a hollow structure at the upper end. It is detachably connected to the movable clamping block 513 through the hollow structure, thereby allowing the height of the tube-cutting blade 515 to be adjusted. When the movable clamping block 513 clamps the plasma bag, the tube-cutting blade 515 cuts the infusion tubing located at both ends of the plasma bag, further promoting plasma release. The tube-cutting blade 515 cuts without severing the infusion tubing, which can be achieved by adjusting the height of the tube-cutting blade 515.

[0034] Specifically, the blood bag support 2 includes a base plate 21 and two columns 22. The columns 22 are arranged in parallel, and the gap between them is used for the passage of the main blade 32. The base plate of the blood bag support 2 can be configured as an I-beam. In use, the secondary blade 33 cuts through the corresponding part of the base plate, and the main blade 32 cuts through the corresponding part of the gap between the columns 22, which can further enable the blood plasma bag to be cut open.

[0035] Specifically, it also includes a control system that controls the linkage between the cutter assembly 3 and the turntable assembly 5. The control system can be a PLC controller. In use, programming is first performed in the PLC controller to coordinate the operation of the motor, lifting cylinder, cutter cylinder, etc. Using a PLC controller to control the linkage is a conventional technology and will not be elaborated upon here.

[0036] In use, after the plasma bag 4 is transported onto the plasma bag support 2, a set of lifting cylinders 511 in the symmetrically arranged turntable assembly 5 simultaneously extend, and the symmetrically arranged movable clamping blocks 513 descend accordingly, clamping the left and right wings of the plasma bag 4 together with the fixed clamping block 514. At this time, the tube-cutting blade 515 located on the movable clamping block 513 cuts the infusion tube on the plasma bag 4, allowing the plasma in the infusion tube to flow out, facilitating further release of plasma. Then, the cutting cylinder 31 extends, driving the main blade 32 and the auxiliary blade 33 to move towards the plasma bag. The main blade 32 cuts the plasma bag, while the auxiliary blade 33 cuts but does not sever the plasma bag. Then, the symmetrically arranged turntable drive assembly 52 works simultaneously, driving the two clamping assemblies 51 on both sides to rotate in opposite directions. 0°, if the left clamping component 51 rotates 90° clockwise and the right clamping component 51 rotates 90° counterclockwise, during the rotation, the two clamping components 51 respectively throw half a bag of plasma out of the plasma bag, thereby completing the release action of the plasma bag. The next plasma bag is then transported to the plasma bag support 2, and the above action is repeated to complete the release action of the next plasma bag. During this process, the movable clamping block 513 and the fixed clamping block 514 of the two clamping components clamping the previous plasma bag are released under the retraction of the corresponding lifting cylinder 511, and the two half bags of plasma are released. By repeating the above action, the continuous release of plasma from the plasma bag can be completed. The whole process is convenient, fast and continuous, which can further shorten the plasma release time and reduce the possibility of plasma contamination.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plasma release device for a plasma bag breaking machine, comprising a support member (1), characterized in that, A blood bag support (2) is provided below the support member (1), and a cutter assembly (3) is provided above the blood bag support (2). The cutter assembly (3) is used to cut the blood bag (4). A turntable assembly (5) is also provided on the support member (1). The turntable assembly (5) is symmetrically arranged along the cutter assembly (3). The turntable assembly (5) is used to clamp and release the blood bag (4).

2. The plasma release device of a plasma bag breaking machine according to claim 1, characterized in that, The cutting assembly (3) includes a cutting cylinder (31), a main blade (32), and a secondary blade (33). The main blade (32) and the secondary blade (33) are provided with a mounting plate (34) at the end away from the blood bag (4). There are two secondary blades (33), which are symmetrically arranged on both sides of the main blade (32). The output end of the cutting cylinder (31) is connected to the mounting plate (34) to control the movement of the main blade (32) and the secondary blade (33).

3. The plasma release device of a plasma bag breaking machine according to claim 2, characterized in that, The cutting blade assembly (3) is perpendicular to the blood bag support (2).

4. The plasma release device of a plasma bag breaking machine according to claim 3, characterized in that, The turntable assembly (5) includes a turntable drive assembly (52) and a clamping assembly (51). The clamping assembly (51) is used to clamp the plasma bag, and the turntable drive assembly (52) is used to drive the clamping assembly (51) to rotate.

5. The plasma release device of a plasma bag breaking machine according to claim 4, characterized in that, The turntable drive assembly (52) includes a motor (521), a synchronous belt (522), and pulleys. The pulleys include a driving pulley (523) and a driven pulley (524). The output end of the motor (521) is connected to the driving pulley (523). The clamping assembly (51) has a rotating shaft at its center, which is connected to the driven pulley (524). The motor (521) drives the clamping assembly (51) to rotate.

6. The plasma release device of a plasma bag breaking machine according to claim 5, characterized in that, The clamping assembly (51) includes a housing (516), on the outside of which a movable clamping block (513) and a fixed clamping block (514) are provided. The movable clamping block (513) and the fixed clamping block (514) are arranged opposite to each other. Inside the housing (516) are a lifting cylinder (511) and a Z-arm (512). The output end of the lifting cylinder (511) is connected to the Z-arm (512), and the other end of the Z-arm (512) extends out of the housing (516) and is connected to the movable clamping block (513).

7. The plasma release device of a plasma bag breaking machine according to claim 6, characterized in that, The movable clamping block (513), the fixed clamping block (514), the lifting cylinder (511), and the Z-arm (512) are evenly arranged in four sets on the housing (516).

8. The plasma release device of a plasma bag breaking machine according to claim 7, characterized in that, Each of the movable clamps (513) is also provided with a pipe cutter (515) on its inner side.

9. The plasma release device of a plasma bag breaking machine according to claim 8, characterized in that, The blood bag support (2) includes a base plate (21) and a column (22). The column (22) has two parallel columns, and the gap formed by them is used for the passage of the main blade (32).

10. The plasma release device of a plasma bag breaking machine according to claim 9, characterized in that, It also includes a control system that controls the cutting blade assembly (3) and the turntable assembly (5) to work together.