Platelet bag assembly capable of prolonging storage life of platelets

Abstract

The utility model discloses a platelet bag assembly capable of prolonging the storage life of platelets, which comprises a platelet storage bag, a first liquid medicine conduit and a plurality of platelet conduits, wherein the top of the platelet storage bag is provided with a PVC (Polyvinyl Chloride) material; platelet preservation liquid is stored in the liquid medicine bag, a second liquid medicine catheter made of PVC is arranged at the top of the liquid medicine bag, an easily-folded piece is arranged at the section, close to the liquid medicine bag, of the second liquid medicine catheter, and a Luer connector is arranged at the other end of the second liquid medicine catheter. Reliability of sterile connection is guaranteed by the aid of the catheter made of PVC (polyvinyl chloride), compatibility problem of long-term contact of materials and medicines is solved by the aid of the easy-to-fold part, sterility is realized by the aid of a novel Luer connector sealing structure, bag film materials of the platelet storage bag are optimized, retention period of platelets is prolonged from 5 days to 7 days, and the platelet storage bag is applicable to clinical application. The problem that the clinical platelet supply amount is insufficient is solved, and meanwhile the safety and convenience of the operation process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a platelet bag assembly capable of prolonging platelet storage period. BACKGROUND

[0002] At present, platelets play a very important role in the body, mainly responsible for hemostasis, can directly adhere and gather, can also form platelet thrombus, and can promote blood coagulation function, thereby playing the role of consolidating thrombus. The normal value of platelets is generally (100-300) x10~9 / L, and patients often have symptoms of thrombocytopenia in daily life. If the thrombocytopenia is relatively serious, the patient has a tendency to bleed, and platelet transfusion can quickly increase the number of platelets.

[0003] There is a shortage of platelet supply in clinical platelet transfusion, and the main reasons are two: one is that the platelet collection amount is insufficient; the other is that the platelet storage period is short (5 days), and the transfusion needs to meet the same type of transfusion. When the blood and pathology are not matched within 5 days, it will cause waste of platelets that are not transfused before expiration.

[0004] Therefore, prolonging the platelet storage period is an important measure to alleviate the shortage of platelet clinical supply. CONTENT OF THE UTILITY MODEL

[0005] In order to prolong the platelet storage period and avoid the waste of platelets, the utility model provides a platelet bag assembly capable of prolonging the platelet storage period.

[0006] The technical scheme adopted by the utility model is as follows: a platelet bag assembly capable of prolonging the platelet storage period, comprising: a platelet storage bag, a first drug liquid conduit and a plurality of platelet conduits made of PVC are arranged at the top; a drug liquid bag, a platelet storage liquid is stored in the inside, a second drug liquid conduit made of PVC is arranged at the top, an easy-to-fold piece is arranged on the section of the second drug liquid conduit close to the drug liquid bag, and a luer joint is arranged at the other end.

[0007] Preferably, the first drug liquid conduit and the plurality of platelet conduits are connected to the platelet storage bag through a multi-way joint and a main conduit.

[0008] Preferably, a flow stop clamp is arranged on the main conduit and the first drug liquid conduit.

[0009] Preferably, the bag film material of the platelet storage bag is selected from polyurethane, polyvinyl alcohol or polyethylene terephthalate.

[0010] Preferably, the luer joint is matched with a disposable airtight cap.

[0011] Preferably, the airtight cap is fixed on the luer joint in a welding or gluing manner.

[0012] This invention has the following advantages: It uses a PVC tubing to ensure the reliability of aseptic connection, uses a flexible component to overcome the compatibility problem of long-term contact between materials and drugs, adopts a new Luer connector sealing structure to achieve asepticity, and optimizes the bag film material of the platelet preservation bag, extending the platelet preservation period from 5 days to 7 days, alleviating the problem of insufficient platelet supply in clinical practice, and improving the safety and convenience of the operation process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the platelet preservation bag in an embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the medicine bag in an embodiment of this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the Luer connector in an embodiment of this utility model.

[0016] 1. Platelet preservation bag; 2. First drug delivery tube; 3. Platelet delivery tube; 4. Drug bag; 5. Second drug delivery tube; 6. Easy-break part; 7. Luer connector; 8. Multi-port connector; 9. Main tube; 10. Flow stop clamp; 11. Sealing cap. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0018] In the embodiments, such as Figures 1-3 The image shows a platelet bag assembly that can extend the shelf life of platelets. It includes: a platelet storage bag 1, with a first PVC medication conduit 2 and several platelet conduits 3 at the top; a medication bag 4 containing platelet preservation solution, with a second PVC medication conduit 5 at the top. The second medication conduit 5 has a flexible element 6 near the medication bag 4, and a Luer connector 7 at the other end. This embodiment utilizes PVC conduits to ensure reliable aseptic connection and the flexible element 6 to overcome compatibility issues related to long-term contact between materials and drugs. This extends the platelet storage time, alleviates the clinical problem of insufficient platelet supply, and improves the safety and convenience of the operation process.

[0019] In the embodiments, such as Figure 1 As shown, the first drug delivery catheter 2 and several platelet delivery catheters 3 are connected to the platelet storage bag 1 via a multi-port connector 8 and a main tube 9. The connection design of the multi-port connector 8 and the main tube 9 provides flexibility, enabling more efficient and contamination-free catheter connection, and also reduces the contact between blood and air, further reducing the negative impact of gas on platelets.

[0020] In the embodiments, such asFigure 1 As shown in the drawings, the main tube 9 and the first drug solution tube 2 are both provided with a flow stop clamp 10. The flow stop clamp 10 allows effective control of the flow of fluid when needed, avoiding accidental leakage during infusion or storage. This not only increases the accuracy of infusion, but also avoids the loss of platelets, further enhancing the safety of use.

[0021] In the embodiment, the bag film material of the platelet storage bag 1 is selected from polyurethane, polyvinyl alcohol or polyethylene terephthalate. Polyurethane has excellent biocompatibility and air permeability, and can effectively isolate bacteria and other microorganisms, and can adjust the air permeability, which helps to maintain the metabolic environment of platelets. Polyvinyl alcohol has excellent biocompatibility and good water solubility, can remain stable in an aqueous environment, and promotes the storage of platelets. Polyethylene terephthalate film has excellent mechanical strength and transparency, and is easy to sterilize, and performs excellently in maintaining platelet activity, and can effectively reduce bacterial growth. The above-mentioned materials are excellent bag film materials, which can effectively prolong the shelf life of platelets, and can be selected according to actual conditions.

[0022] In the embodiment, as shown in Figure 2 , Figure 3 The luer connector 7 is provided with a disposable sealing cap 11, and specifically, the sealing cap 11 is fixed on the luer connector 7 by welding or gluing. The design of the sealing cap 7 can effectively prevent external pollution, and compared with the existing rotating cap, it realizes aseptic conditions.

[0023] In addition, in the embodiment, the platelet storage solution can be selected to be a polymer-rich storage solution. The storage solution is added with polymers such as polyvinyl alcohol and polyurethane to improve the storage effect, which can improve the metabolic state of platelets and reduce cell apoptosis during storage.

[0024] Obviously, the above-mentioned embodiments of the present application are only examples for illustrating the present application, and are not a limitation on the embodiments of the present application. Other obvious changes or modifications derived from the essential spirit of the present application still belong to the protection scope of the present application.

Claims

1. A platelet bag assembly for extending the shelf life of platelets, characterized by, Include: Platelet preservation bag (1), the top is equipped with the first medicine liquid guide pipe (2) of PVC material and several platelet guide pipes (3); Medicine liquid bag (4), the inside storage has platelet preservation liquid, the top is equipped with the second medicine liquid guide pipe (5) of PVC material, the section of second medicine liquid guide pipe (5) near medicine liquid bag (4) is equipped with the easy folding piece (6), the other end is equipped with the luer joint (7).

2. The platelet pocket assembly for extending the shelf life of platelets according to claim 1, wherein, The first medicine liquid guide pipe (2) and several platelet guide pipes (3) are connected to the platelet preservation bag (1) through the multi-way joint (8) and the main guide pipe (9).

3. The platelet pocket assembly for extending the shelf life of platelets according to claim 2, wherein, The main guide pipe (9) and the first medicine liquid guide pipe (2) are both provided with the flow stop clamp (10).

4. The platelet bag assembly for extending the shelf life of platelets according to claim 1, wherein, The bag film material of the platelet preservation bag (1) is selected from polyurethane, polyvinyl alcohol or polyethylene terephthalate.

5. The platelet bag assembly for extending the shelf life of platelets according to claim 1, wherein, The luer joint (7) is matched with the disposable airtight cap (11).

6. The platelet bag assembly for extending the shelf life of platelets according to claim 5, wherein, The airtight cap (11) is fixed on the luer joint (7) by welding or gluing.

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