Puncture-proof blood transfusion bag

Abstract

The utility model relates to the technical field of medical instruments, in particular to a puncture-proof blood transfusion bag. The blood transfusion bag comprises a blood transfusion bag body, a protection connector assembly arranged at the bottom of the blood transfusion bag body in a communicated mode and a pair of guide assemblies symmetrically arranged in the protection connector assembly and clamped on the left side and the right side of the outer wall of a blunt needle head of a blood transfusion apparatus respectively. The guide assembly comprises a fixing rod transversely and fixedly arranged on one side of the inner wall of the protection interface assembly and a U-shaped guide piece rotationally and vertically arranged at the end of the fixing rod. And arc-shaped parts are fixedly arranged at the two vertical end parts of the U-shaped guide piece. According to the device, the situation that the blood transfusion bag is punctured by the blunt needle head of the blood transfusion apparatus when the blunt needle head of the blood transfusion apparatus is connected with the blood transfusion bag is avoided as far as possible.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially relates to a kind of anti-puncture blood transfusion bag. BACKGROUND

[0002] In clinical medicine, blood transfusion bag and blood transfusion device are indispensable equipment in blood transfusion process, ensure that blood is safely and effectively delivered to the patient. Blood transfusion bag is usually made of plastic materials such as polyvinyl chloride (PVC), with good durability and biocompatibility. Their capacity is generally between 250 milliliters to 500 milliliters, which can store whole blood or its components, such as red blood cells, plasma and platelets. Some blood transfusion bags are also equipped with filters to remove white blood cells or other possible impurities to reduce the risk of transfusion reaction. Blood transfusion device is the bridge between blood transfusion bag and patient, usually composed of needle, infusion tube, drip chamber, flow rate regulator and filter. The design of blood transfusion device aims to ensure that blood can be delivered to the patient at an appropriate speed and pressure. The built-in filter can effectively remove small clots and impurities, further ensuring the safety of blood transfusion. The flow rate regulator allows medical staff to adjust the transfusion rate according to the specific situation of the patient, ensuring the smooth progress of the blood transfusion process. Although the design and manufacture of blood transfusion bag and blood transfusion device have undergone strict quality control to ensure their safety and reliability during use.

[0003] In daily life, due to the reasons such as the longer blunt needle of blood transfusion device than the interface of blood transfusion bag, operation errors in emergency situations, etc., the event of blood transfusion device puncturing blood transfusion bag is relatively common in clinical practice, so it is necessary to invent an anti-puncture blood transfusion bag that can avoid the blood transfusion device blunt needle puncturing the blood transfusion bag as much as possible when connecting the blood transfusion device blunt needle and the blood transfusion bag. SUMMARY

[0004] In order to solve the above problems, the purpose of the utility model is to provide an anti-puncture blood transfusion bag that can avoid the blood transfusion device blunt needle puncturing the blood transfusion bag as much as possible when connecting the blood transfusion device blunt needle and the blood transfusion bag.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-puncture blood transfusion bag, comprising a blood transfusion bag body, a protective interface assembly connected to the bottom of the blood transfusion bag body, and a pair of symmetrical guide assemblies arranged in the protective interface assembly and respectively clamped on the left and right sides of the outer wall of the blunt needle of the blood transfusion device; the guide assembly comprises a fixed rod horizontally fixed to one side of the inner wall of the protective interface assembly and a U-shaped guide piece vertically arranged at the end of the fixed rod; the two vertical ends of the U-shaped guide piece are provided with arc-shaped parts.

[0007] More preferably, the bottom end of the protective interface assembly is surrounded by a guide ring that gradually tilts outward from top to bottom.

[0008] More preferably, the protective interface assembly comprises a sterile interface in communication with the bottom of the blood transfusion bag body and a reinforcing sleeve sleeved outside the sterile interface and fixed with the bottom of the blood transfusion bag body; the two fixing rods are respectively fixed transversely on the left and right sides of the lower inner wall of the sterile interface.

[0009] The utility model has the following beneficial effects:

[0010] 1、 the blunt needle head of the utility model is passed through between the two U-shaped guide pieces when the blunt needle head of the blood transfusion device is punctured into the protective interface assembly, the two U-shaped guide pieces are rotated to the vertical position, thereby guiding the blunt needle head from the left and right sides of the blunt needle head respectively, avoiding the collision or even puncture of the blunt needle head with the inner wall of the protective interface assembly during the process of moving into the protective interface assembly, thereby reducing the possibility of puncturing the protective interface assembly during the process of puncturing the protective interface assembly, improving the success rate of puncturing the blood transfusion device, and providing reliable guarantee for blood transfusion treatment of patients.

[0011] 2、 the utility model is provided with the guide ring, which plays a guiding role when the blunt needle head is punctured into the protective interface assembly, further reduces the probability of rupture of the protective interface assembly caused by the skewing of the blunt needle head, and improves the success rate of puncturing the blood transfusion device.

[0012] 3、 the utility model is provided with the sterile interface and the reinforcing sleeve, which double-protects the protective interface assembly, increases the hardness of the protective interface assembly, thereby further reducing the possibility of puncturing the protective interface assembly during the process of puncturing the protective interface assembly, and improving the success rate of puncturing the blood transfusion device. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view of the blood transfusion bag;

[0014] Figure 2 It is an enlarged view of the structure at A.

[0015] Explanation of reference signs:

[0016] 1、 blood transfusion bag body;2、 protective interface assembly;21、 sterile interface;22、 reinforcing sleeve;3、 guide assembly;31、 fixing rod;32、 U-shaped guide piece;321、 arc-shaped part;4、 guide ring. DETAILED DESCRIPTION

[0017] The utility model will be further described in detail below in combination with the drawings and specific embodiments

[0018] The anti-puncture blood transfusion bag comprises a blood transfusion bag body 1, a protective interface assembly 2 communicated with the bottom of the blood transfusion bag body 1, and a pair of guide assemblies 3 symmetrically arranged in the protective interface assembly 2 and respectively clamped on the left and right sides of the outer wall of the blunt needle of the blood transfusion device; the guide assembly 3 comprises a fixed rod 31 horizontally fixed to one side of the inner wall of the protective interface assembly 2 and a U-shaped guide 32 vertically arranged at the end of the fixed rod 31; the two vertical ends of the U-shaped guide 32 are provided with arc-shaped parts 321.

[0019] When the blunt needle of the blood transfusion device is punctured into the protective interface assembly 2, the blunt needle will pass between the two U-shaped guides 32, so that the two U-shaped guides 32 are rotated to the vertical position, thereby guiding the blunt needle from the left and right sides of the blunt needle respectively, avoiding the collision or even puncture of the blunt needle with the inner wall of the protective interface assembly 2 during the movement of the blunt needle into the protective interface assembly 2, thereby reducing the possibility of the puncture of the protective interface assembly 2 during the puncture of the blunt needle into the protective interface assembly 2, and improving the success rate of the puncture of the blood transfusion device, thereby providing reliable protection for the blood transfusion treatment of the patient.

[0020] As a possible embodiment of the present scheme, preferably, a guide ring 4 gradually inclined outward from top to bottom is fixed around the bottom end of the protective interface assembly 2; through the arrangement of the guide ring 4, the guide ring 4 plays a guiding role when the blunt needle is punctured into the protective interface assembly 2, further reducing the probability of the rupture of the protective interface assembly 2 caused by the skewing of the blunt needle, and improving the success rate of the puncture of the blood transfusion device.

[0021] As a possible embodiment of the present scheme, preferably, the protective interface assembly 2 comprises a sterile interface 21 communicated with the bottom of the blood transfusion bag body 1 and a reinforcing sleeve 22 sleeved outside the sterile interface 21 and fixed with the bottom of the blood transfusion bag body 1; the two fixed rods 31 are respectively horizontally fixed to the left and right sides of the lower part of the inner wall of the sterile interface 21; through the double protection of the sterile interface 21 and the reinforcing sleeve 22, the hardness of the protective interface assembly 2 is increased, thereby further reducing the possibility of the puncture of the protective interface assembly 2 during the puncture of the protective interface assembly 2 by the blunt needle, and improving the success rate of the puncture of the blood transfusion device.

[0022] The above is only a specific embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct or indirect application in other related technical fields based on the content of the present application is also included in the patent protection scope of the present application.

Claims

1. A puncture resistant blood transfusion bag, characterized by: The protective interface assembly (2) is communicated with the bottom of the transfusion bag body (1), and a pair of symmetrical guide assemblies (3) are arranged in the protective interface assembly (2) and clamped on the left and right sides of the outer wall of the blunt needle of the transfusion device respectively. The guide assembly (3) comprises a fixed rod (31) fixed transversely on one side of the inner wall of the protective interface assembly (2) and a U-shaped guide piece (32) rotatably arranged vertically on the end of the fixed rod (31); the two vertical ends of the U-shaped guide piece (32) are provided with arc-shaped parts (321).

2. The puncture resistant blood transfusion bag according to claim 1, wherein: The bottom end of the protective interface assembly (2) is circumferentially fixed with a guide ring (4) gradually inclined outward from top to bottom.

3. The puncture resistant blood transfusion bag of claim 1 wherein: The protective interface assembly (2) comprises a sterile interface (21) communicated with the bottom of the transfusion bag body (1) and a reinforcing sleeve (22) sleeved outside the sterile interface (21) and fixed with the bottom of the transfusion bag body (1); the two fixed rods (31) are respectively fixed transversely on the left and right sides of the lower part of the inner wall of the sterile interface (21).

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