An inverted centrifuged plastic blood bag

Abstract

The utility model belongs to the technical field of plastic blood bag, concretely is a kind of plastic blood bag of inverted centrifugation, including blood bag body, the top of blood bag body is successively equipped with hose and butterfly type interface from left to right, the middle part of blood bag body outer side wall is provided with adjusting mechanism, adjusting mechanism includes the first extrusion plate of blood bag body front end surface and the second extrusion plate of blood bag body rear end surface, the left and right ends of first extrusion plate front end surface are all provided with through hole, the inside rotation of through hole is connected with clamping plate, the upper and lower two end surfaces of clamping plate are all equipped with multiple limit plates of symmetrical distribution, improve the centrifugal effect to blood when blood bag body is inverted and centrifuged, so that the blood distribution in blood bag body is more uniform.

Description

Technical Field

[0001] This utility model belongs to the field of plastic blood bag technology, specifically a plastic blood bag that is centrifuged by inversion. Background Technology

[0002] Disposable plastic blood bags are bag-shaped plastic containers and accessory blood bags that include blood collection tubes, blood collection needles, transfusion inlets, anticoagulants or preservative solutions, and transfer tubes. They are mainly used for blood collection and the preparation of various blood components. The entire process of blood collection, separation, transfer, storage, and transfusion is carried out in a completely sealed system, which is convenient to operate, avoids contamination, improves transfusion quality, reduces transfusion reactions, and makes full use of blood resources.

[0003] Existing blood collection bags are usually the same width from top to bottom. When the blood collection bag is inverted for centrifugation, the blood inside the bag will flow directly back to the other side of the blood collection bag. This makes it impossible to regulate the blood flow rate, resulting in uneven blood distribution and affecting the centrifugation effect. Summary of the Invention

[0004] The purpose of this invention is to provide an inverted centrifugation plastic blood bag, which improves the centrifugation effect of the blood when the blood bag body is inverted for centrifugation, making the blood in the blood bag body more evenly distributed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inverted centrifugal plastic blood bag, comprising a blood bag body, wherein a tubing and a butterfly-shaped interface are sequentially installed on the top of the blood bag body from left to right, and an adjustment mechanism is provided in the middle of the outer side wall of the blood bag body. The adjustment mechanism includes a first compression plate located on the front end face of the blood bag body and a second compression plate located on the rear end face of the blood bag body. Through holes are provided at both ends of the front end face of the first compression plate, and a retaining plate is rotatably connected inside the through holes. Multiple symmetrically distributed limiting plates are installed on both the upper and lower ends of the retaining plate. A retaining hole corresponding to the through hole is provided through the front end face of the second compression plate.

[0006] A flow guiding membrane is installed between the front and rear end faces inside the blood bag body.

[0007] To facilitate centrifugation of blood, the preferred embodiment of the inverted centrifugation plastic blood bag of this invention is gourd-shaped.

[0008] In order to limit the second compression plate, in a preferred embodiment of the inverted centrifugation plastic blood bag of this invention, the distance between two adjacent limiting plates is matched with the width of the second compression plate.

[0009] In order to facilitate the compression of the blood bag body by the first and second compression plates and adjust the flow rate through the middle of the blood bag body, as a preferred embodiment of the inverted centrifugal plastic blood bag of this utility model, rubber pads are installed on the opposite sides of the first and second compression plates.

[0010] To facilitate the inverted placement of the blood bag body, as a preferred embodiment of the inverted centrifugal plastic blood bag of this utility model, an inverted hanging plate is installed at the bottom of the blood bag body.

[0011] To facilitate hanging the blood bag body, as a preferred embodiment of the inverted centrifugal plastic blood bag of this utility model, a hanging ring is installed through the middle of the top of the blood bag body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention allows for the adjustment of the distance between the first and second compression plates by rotating two clamping plates to move them into two clamping holes and engaging two adjacent limiting plates on the two clamping plates on the front and rear sides of the second compression plate. By setting an inverted hanging plate, the blood bag can be hung upside down for infusion, allowing the blood flow rate through the middle of the blood bag to be controlled by adjusting the distance between the first and second compression plates as the blood flows to the other end. The inclusion of a flow guiding membrane allows the blood to tumble as it flows along the membrane to the other side of the blood bag, thus guiding the blood flow within the bag. Centrifugation by inverting the blood bag improves the centrifugation effect, resulting in a more uniform distribution of blood within the bag. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top sectional view of the adjustment mechanism of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the blood bag body of this utility model;

[0017] Figure 4 This is a top view of a partial structure of the adjustment mechanism of this utility model.

[0018] In the diagram: 1. Blood bag body; 101. Butterfly-shaped interface; 102. Tube; 2. Hanging ring; 3. Inverted hanging plate; 4. Adjustment mechanism; 401. First compression plate; 402. Second compression plate; 4021. Clip hole; 403. Rubber pad; 404. Through hole; 5. Clip plate; 501. Limiting plate; 6. Guide membrane. Detailed Implementation

[0019] Please see Figures 1 to 4 An inverted centrifugal plastic blood bag includes a blood bag body 1. A tubing 102 and a butterfly-shaped interface 101 are installed sequentially from left to right on the top of the blood bag body 1. An adjustment mechanism 4 is provided in the middle of the outer side wall of the blood bag body 1. The adjustment mechanism 4 includes a first compression plate 401 located at the front end face of the blood bag body 1 and a second compression plate 402 located at the rear end face of the blood bag body 1. Both the left and right ends of the front end face of the first compression plate 401 are provided with through holes 404. A retaining plate 5 is rotatably connected inside the through hole 404. Multiple symmetrically distributed limiting plates 501 are installed on the upper and lower ends of the retaining plate 5. The front end face of the second compression plate 402 is provided with a retaining hole 4021 corresponding to the through hole 404.

[0020] A flow guide membrane 6 is installed between the front and rear end faces inside the blood bag body 1.

[0021] In this embodiment: by rotating the two clamping plates 5 to move them into the two clamping holes 4021, and clamping the two adjacent limiting plates 501 on the two clamping plates 5 onto the front and rear sides of the second squeezing plate 402, the second squeezing plate 402 can be limited, thereby adjusting the distance between the first squeezing plate 401 and the second squeezing plate 402; by setting the inverted hanging plate 3, the blood bag body 1 can be hung upside down, and when the blood in the blood bag body 1 flows to the other end, the flow rate through the middle of the blood bag body 1 can be controlled by adjusting the distance between the first squeezing plate 401 and the second squeezing plate 402; by setting the guide membrane 6, the blood can tumble when flowing along the guide membrane 6 to the other side of the blood bag body 1, which can guide the blood in the blood bag body 1, improve the centrifugation effect of the blood, and at the same time play an auxiliary role in mixing the blood and drugs inside.

[0022] As a technical optimization of this utility model, the blood bag body 1 is gourd-shaped.

[0023] In this embodiment, by setting the blood bag body 1 in a gourd shape, making the width of its middle part smaller than that of the top and bottom ends, it is easier to centrifuge the blood when the blood bag body 1 is inverted.

[0024] As a technical optimization of this utility model, the distance between two adjacent limiting plates 501 is matched with the width of the second extrusion plate 402.

[0025] In this embodiment: by matching the distance between the two limiting plates 501 with the width of the second extrusion plate 402, the two limiting plates 501 on the card plate 5 are snapped onto the front and rear sides of the second extrusion plate 402, which facilitates the limiting of the second extrusion plate 402. After the second extrusion plate 402 is limited, it will not disengage from the card hole 4021 without being subjected to external force.

[0026] As a technical optimization of this utility model, rubber pads 403 are installed on the opposite sides of the first extrusion plate 401 and the second extrusion plate 402.

[0027] In this embodiment: by setting a rubber pad 403, the first compression plate 401 and the second compression plate 402 are made to fit against the blood bag body 1, so that the first compression plate 401 and the second compression plate 402 can squeeze the blood bag body 1 and adjust the flow rate passing through the middle of the blood bag body 1.

[0028] As a technical optimization of this utility model, an inverted hanging plate 3 is installed at the bottom of the blood bag body 1.

[0029] In this embodiment: by setting an inverted hanging plate 3, it is convenient to place the blood bag body 1 upside down.

[0030] As a technical optimization of this utility model, a hanging ring 2 is installed through the middle of the top of the blood bag body 1.

[0031] In this embodiment: by setting the hanging ring 2, it is easy to hang the blood bag body 1.

[0032] Working principle: When using this utility model, by moving the two clamping plates 5 into the two clamping holes 4021 and clamping the two adjacent limiting plates 501 on the two clamping plates 5 onto the front and rear sides of the second squeezing plate 402, the second squeezing plate 402 can be limited, thereby adjusting the distance between the first squeezing plate 401 and the second squeezing plate 402; by using the inverted hanging plate 3, the blood bag body 1 can be inverted and hung up for infusion, so that when the blood in the blood bag body 1 flows to the other end, the flow rate through the middle of the blood bag body 1 can be controlled by adjusting the distance between the first squeezing plate 401 and the second squeezing plate 402; by using the guide membrane 6, the blood can tumble when flowing along the guide membrane 6 to the other side of the blood bag body 1, which can guide the blood in the blood bag body 1, improve the centrifugal effect of the blood, and make the blood in the blood bag body 1 more evenly distributed.

[0033] 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 plastic blood bag for inverted centrifugation, comprising a blood bag body (1), wherein a flexible tube (102) and a butterfly-shaped connector (101) are sequentially installed from left to right on the top of the blood bag body (1), characterized in that: An adjustment mechanism (4) is provided in the middle of the outer side wall of the blood bag body (1). The adjustment mechanism (4) includes a first compression plate (401) located on the front end face of the blood bag body (1) and a second compression plate (402) located on the rear end face of the blood bag body (1). The left and right ends of the front end face of the first compression plate (401) are provided with through holes (404). A retaining plate (5) is rotatably connected inside the through hole (404). Multiple symmetrically distributed limiting plates (501) are installed on the upper and lower ends of the retaining plate (5). The front end face of the second compression plate (402) is provided with a retaining hole (4021) corresponding to the through hole (404). A flow guide membrane (6) is installed between the front and rear end faces inside the blood bag body (1).

2. The plastic blood bag for inverted centrifugation according to claim 1, characterized in that: The blood bag body (1) is gourd-shaped.

3. The plastic blood bag for inverted centrifugation according to claim 1, characterized in that: The distance between two adjacent limiting plates (501) matches the width of the second extrusion plate (402).

4. The plastic blood bag for inverted centrifugation according to claim 1, characterized in that: Rubber pads (403) are installed on opposite sides of the first extrusion plate (401) and the second extrusion plate (402).

5. A plastic blood bag for inverted centrifugation according to claim 1, characterized in that: An inverted hanging plate (3) is installed at the bottom of the blood bag body (1).

6. A plastic blood bag for inverted centrifugation according to claim 1, characterized in that: A hanging ring (2) is installed through the middle of the top of the blood bag body (1).

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