Disposable plastic blood bag
By designing a suspension structure, the problem of fixed suspension height of traditional blood bags was solved, enabling flexible adjustment of the suspension height and making operation simple and labor-saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI KUNTENG PACKAGING MATERIAL CO LTD
- Filing Date
- 2024-12-20
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional blood bags are hung at a fixed height, which cannot be flexibly adjusted as needed, making operation inconvenient.
A suspension structure was designed, including components such as a fixed plate, a sliding rod, a guide roller, and a suspension rope. Through the cooperation of the sliding block and the movable rod, the suspension height of the blood bag can be flexibly adjusted, reducing friction and increasing friction to facilitate operation.
It enables flexible adjustment of the blood bag hanging height, is simple to operate, saves time and effort, and meets different usage needs.
Smart Images
Figure CN224235780U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic blood bag technology, specifically a disposable plastic blood bag. Background Technology
[0002] A blood bag is a medical device primarily used for the collection, storage, processing, transfer, separation, and transfusion of blood. It is a bag-shaped plastic container that includes blood collection tubes, needles, transfusion inlets, anticoagulant or preservative solutions, and transfer tubing, among other accessories. Blood bags are designed to improve transfusion quality and reduce transfusion reactions. Depending on their intended use, blood bags can be categorized into several types, such as disposable plastic blood bags and large autologous blood bags.
[0003] Traditional blood bags are typically sealed bags formed by pressing two pieces of medical plastic film together. The top of the bag has a perforation to allow it to be suspended for transfusion. However, the suspension height is usually fixed and not easily adjustable as needed. Summary of the Invention
[0004] The purpose of this invention is to provide a disposable plastic blood bag, which allows for flexible adjustment of the hanging height of the blood bag body as needed, making it convenient to operate and saving time and effort.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a disposable plastic blood bag, comprising a blood bag body, a suspension structure above the blood bag body, the suspension structure comprising a fixing plate, a sliding rod fixedly connected to the bottom end of the fixing plate, a fixing block fixedly connected to the lower outer wall of the sliding rod, hinge seats fixedly connected to both sides of the outer wall of the fixing block, support rods movably connected to the outer walls of the two hinge seats, guide rollers fixedly connected to the other ends of the two support rods, a sliding block slidably connected to the upper outer wall of the sliding rod, movable rods movably connected to both sides of the outer wall of the sliding block, the other ends of the two movable rods movably connected to the outer walls of the two support rods respectively, and suspension ropes fixedly connected to both sides of the outer wall of the fixing plate, the two suspension ropes passing through the two guide rollers and fixedly connected to the top end of the blood bag body.
[0006] In order to reduce the friction between the guide roller and the suspension rope, the disposable plastic blood bag of this utility model preferably includes a connecting shaft, both ends of which are fixedly connected to limit plates, and a rotating drum is rotatably connected to the outer wall of the connecting shaft.
[0007] In order to increase the friction between the sliding block and the sliding rod, the preferred disposable plastic blood bag of this utility model has clips fixedly connected to both the front and rear sides of the upper end of the sliding block, and both clips are arc-shaped.
[0008] To facilitate hanging blood bags, the outer wall of the fixing plate of the present invention preferably has a hanging hole for hanging the disposable plastic blood bag.
[0009] To increase the friction between the clip and the slide bar, a rubber pad is preferably provided on the inner side of the clip in the preferred disposable plastic blood bag of this invention.
[0010] In order to allow the suspension rope to move smoothly on the outer wall of the guide roller, the diameter of the suspension rope is preferably smaller than the distance between the two limiting plates in the preferred disposable plastic blood bag of this utility model.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] When using the blood bag, it is hung on the wall or on a blood bag support pole through the hanging holes on the outer wall of the fixing plate. Two suspension ropes pull the blood bag. When the suspension length needs to be adjusted, slide the sliding block down. The sliding block slides on the outer wall of the sliding rod, which drives the movable rods on both sides to move. The ends of the two movable rods squeeze the support rods to the sides, increasing the angle between the two support rods and the sliding rod. This drives the two guide rollers to move to the sides, which opens the two suspension ropes to the sides, thereby lifting the blood bag. When the sliding block is slid up, the distance between the two guide rollers decreases, and the blood bag is lowered under its own weight. Thus, the suspension height of the blood bag can be flexibly adjusted as needed. The operation is convenient, time-saving, and labor-saving. Attached Figure Description
[0013] Figure 1 This is a front view structural diagram of the present invention;
[0014] Figure 2 This is a three-dimensional structural diagram of the guide roller of this utility model;
[0015] Figure 3 This is a three-dimensional structural diagram of the clip of this utility model.
[0016] In the diagram: 1. Blood bag body; 2. Fixing plate; 3. Sliding rod; 4. Fixing block; 5. Hinge seat; 6. Support rod; 7. Guide roller; 8. Sliding block; 9. Movable rod; 10. Connecting shaft; 11. Limiting plate; 12. Rotary drum; 13. Suspension rope; 14. Clamping piece; 15. Hanging hole. Detailed Implementation
[0017] Please see Figures 1 to 3A disposable plastic blood bag includes a blood bag body 1. A suspension structure is provided above the blood bag body 1. The suspension structure includes a fixed plate 2. A sliding rod 3 is fixedly connected to the bottom end of the fixed plate 2. A fixed block 4 is fixedly connected to the lower outer wall of the sliding rod 3. A hinge seat 5 is fixedly connected to both sides of the outer wall of the fixed block 4. A support rod 6 is movably connected to the outer wall of both hinge seats 5. A guide roller 7 is fixedly connected to the other end of both support rods 6. A sliding block 8 is slidably connected to the upper outer wall of the sliding rod 3. Movable rods 9 are movably connected to the left and right sides of the outer wall of the sliding block 8. The other ends of the two movable rods 9 are movably connected to the outer walls of the two support rods 6 respectively. A suspension rope 13 is fixedly connected to both sides of the outer wall of the fixed plate 2. The two suspension ropes 13 pass through the two guide rollers 7 respectively and are fixedly connected to the top of the blood bag body 1.
[0018] In this embodiment: When using the blood bag body 1, it is hung on the wall or on the upright of the blood bag through the hanging hole 15 on the outer wall of the fixing plate 2. The two suspension ropes 13 pull the blood bag body 1. When it is necessary to adjust the suspension length, slide the sliding block 8 downward. The sliding block 8 slides on the outer wall of the slide rod 3, which drives the movable rods 9 on both sides to move. The two ends of the two movable rods 9 squeeze the support rods 6 on both sides, so that the angle between the two support rods 6 and the slide rod 3 increases, which drives the two guide rollers 7 to move to both sides. This opens the two suspension ropes 13 to both sides, thereby lifting the blood bag body 1 upward. When the sliding block 8 is slid upward, the distance between the two guide rollers 7 decreases, and the blood bag body 1 is lowered under the action of gravity. Thus, the suspension height of the blood bag body 1 can be flexibly adjusted as needed. The operation is convenient, time-saving and labor-saving.
[0019] As a technical optimization of this utility model, the guide roller 7 includes a connecting shaft 10, both ends of which are fixedly connected to limit plates 11, and a rotating drum 12 is rotatably connected to the outer wall of the connecting shaft 10.
[0020] In this embodiment: a rotating drum 12 is rotatably connected to the outer wall of the connecting shaft 10, and the suspension rope 13 abuts against the outer wall of the rotating drum 12. When the distance between the two guide rollers 7 is adjusted, the rotating drum 12 rotates on the outer wall of the connecting shaft 10, thereby reducing the friction between the suspension rope 13 and the connecting shaft 10.
[0021] As a technical optimization of this utility model, the upper end of the sliding block 8 is fixedly connected with clamping pieces 14 on both the front and rear sides, and both clamping pieces 14 are arc-shaped.
[0022] In this embodiment, clips 14 are fixedly connected to both the front and rear sides of the upper end of the sliding block 8. Both clips 14 are arc-shaped and are clamped to the outer wall of the sliding rod 3, which increases the friction and prevents the sliding block 8 from sliding on its own when there is no external force.
[0023] As a technical optimization of this utility model, the outer wall of the fixing plate 2 is provided with a hanging hole 15.
[0024] In this embodiment, the hanging hole 15 facilitates hanging the fixing plate 2 on the wall or on the upright for hanging blood bags.
[0025] As a technical optimization of this utility model, a rubber pad is provided on the inner side of the clip 14.
[0026] In this embodiment, the rubber pad increases the friction between the clip 14 and the outer wall of the slide bar 3.
[0027] As a technical optimization of this utility model, the diameter of the suspension rope 13 is smaller than the distance between the two limiting plates 11.
[0028] In this embodiment, the diameter of the suspension rope 13 is smaller than the distance between the two limiting plates 11, so that the suspension rope 13 can move smoothly between the two limiting plates 11.
[0029] Working principle: When using the blood bag body 1, it is hung on the wall or on the upright pole of the blood bag through the hanging hole 15 on the outer wall of the fixing plate 2. The two suspension ropes 13 pull the blood bag body 1. When it is necessary to adjust the suspension length, slide the sliding block 8 downward. The sliding block 8 slides on the outer wall of the slide rod 3, which drives the movable rods 9 on both sides to move. The two ends of the two movable rods 9 squeeze the support rods 6 on both sides, so that the angle between the two support rods 6 and the slide rod 3 increases, which drives the two guide rollers 7 to move to both sides. This opens the two suspension ropes 13 to both sides, so that the blood bag body 1 can be lifted upward. When the sliding block 8 is slid upward, the distance between the two guide rollers 7 can be reduced, and the blood bag body 1 will be lowered under the action of gravity. Thus, the suspension height of the blood bag body 1 can be flexibly adjusted as needed. The operation is convenient, time-saving and labor-saving.
[0030] The above are merely preferred embodiments of the present utility model and are 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 disposable plastic blood bag, comprising a blood bag body (1), characterized in that: A suspension structure is provided above the blood bag body (1). The suspension structure includes a fixed plate (2). A sliding rod (3) is fixedly connected to the bottom end of the fixed plate (2). A fixed block (4) is fixedly connected to the lower outer wall of the sliding rod (3). A hinge seat (5) is fixedly connected to both sides of the outer wall of the fixed block (4). A support rod (6) is movably connected to the outer wall of both hinge seats (5). A guide roller (7) is fixedly connected to the other end of both support rods (6). A sliding block (8) is slidably connected to the upper outer wall of the sliding rod (3). Movable rods (9) are movably connected to the left and right sides of the outer wall of the sliding block (8). The other ends of the two movable rods (9) are movably connected to the outer walls of the two support rods (6) respectively. A suspension rope (13) is fixedly connected to both sides of the outer wall of the fixed plate (2). The two suspension ropes (13) pass through the two guide rollers (7) respectively and are fixedly connected to the top of the blood bag body (1).
2. The disposable plastic blood bag according to claim 1, characterized in that: The guide roller (7) includes a connecting shaft (10), both ends of which are fixedly connected to limit plates (11), and a rotating drum (12) is rotatably connected to the outer wall of the connecting shaft (10).
3. The disposable plastic blood bag according to claim 1, characterized in that: The upper end of the sliding block (8) is fixedly connected with clips (14) on both the front and rear sides, and both clips (14) are arc-shaped.
4. The disposable plastic blood bag according to claim 1, characterized in that: The outer wall of the fixing plate (2) is provided with a hanging hole (15).
5. The disposable plastic blood bag according to claim 3, characterized in that: A rubber pad is provided on the inner side of the clip (14).
6. The disposable plastic blood bag according to claim 1, characterized in that: The diameter of the suspension rope (13) is smaller than the distance between the two limiting plates (11).