Rotary reversing sealing ring applied to blood separator

Abstract

The utility model discloses a rotary reversing sealing ring applied to a blood separator, and relates to the technical field of medical instruments. In order to solve the problems of poor sealing effect and leakage risk of a sealing ring at the joint of cavities of an existing blood separator, the following technical scheme is provided: the sealing ring comprises a cover body which is clamped on the inner wall of the blood separator; a first butt joint port is formed in the top of the cover body, a first sealing piece is arranged in the first butt joint port, a second butt joint port is formed in the bottom of the cover body, a second sealing piece is arranged in the second butt joint port, and the first butt joint port is communicated with the second butt joint port through an eccentric through hole; the first butt joint opening and the second butt joint opening are communicated with the two cavities of the blood separator in a butt joint mode respectively. According to the utility model, the die is simplified, the cost is reduced, the sealing performance and the application range of equipment are obviously improved, and a brand new solution and a wide market prospect are brought to the medical equipment manufacturing industry.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a rotation change direction sealing ring for blood separator. BACKGROUND

[0002] With the rapid development of biomedical technology, the research on human blood is also more and more perfect, blood is mainly composed of plasma, platelet, white blood cell, red blood cell, different components all have its corresponding important role, have different medical effect, for example, platelet is used in the patient department to help the generation of patient department cell, the repair of tissue and the acceleration of wound healing, but if red blood cell is mixed in platelet, inflammation will be produced in the patient department, therefore, the components contained in blood need to be separated successfully to be used in medical treatment to realize the effect of auxiliary treatment.

[0003] At present, the common blood separation mode is to use the cylindrical separator to extract after centrifugation by centrifuge for many times, such as the multi-cavity separation device with the application number 202221850937.4, 202411057314.5, blood needs to be transferred to other cavities in turn for separation and extraction after centrifugal stratification in a cavity, therefore, the cavities need to be switched and aligned, but the existing scheme does not set sealing ring at most docking places of the cavities or the set sealing ring is relatively simple, the sealing effect needs to be improved, and the docking place is not stable enough, and there is the risk of leakage in the separation process. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a rotation change direction sealing ring for blood separator to solve the problem of poor sealing effect of the sealing ring at the cavity docking place of the existing blood separator and the risk of leakage.

[0005] The technical scheme for solving the above technical problem of the utility model is as follows:

[0006] A rotation change direction sealing ring for blood separator, comprising: a cover body, the cover body is clamped on the inner wall of the blood separator; a first docking port is arranged at the top of the cover body, a first sealing element is arranged in the first docking port, a second docking port is arranged at the bottom of the cover body, a second sealing element is arranged in the second docking port, and the first docking port and the second docking port are communicated through an eccentric through hole; the first docking port and the second docking port are respectively connected with two cavities of the blood separator.

[0007] Preferably, a plurality of through holes are arranged on the first sealing element, and a leakage prevention protrusion is arranged at the edge of the through hole of the first sealing element.

[0008] Preferably, a rotation prevention boss is arranged on one side of the first sealing element.

[0009] Preferably, a sealing groove matched with the cover body is arranged at the circumferential edge of the first sealing element.

[0010] Preferably, the second sealing member is in the shape of a hollow cylinder.

[0011] Preferably, the second sealing member has a through hole in the interior, and the edge of the through hole of the second sealing member is provided with a leakage prevention protrusion.

[0012] Preferably, the circumferential edge of the second sealing member is provided with a sealing groove matched with the cover body.

[0013] Preferably, the circumferential surface of the cover body is provided with a plurality of limiting clamping grooves.

[0014] The utility model has the following beneficial effects:

[0015] The utility model adopts the structure design concept of nested stacking, and various components are closely and orderly combined together through the nested stacking mode to form a stable and efficient sealing system. Such design simplifies the complexity of the mold, makes the mold manufacturing process more direct and efficient, and effectively reduces the mold opening cost.

[0016] The precise structure design of the rotary reversing sealing ring applied to the blood separator ensures that blood or other fluids can be transmitted without leakage during rotary butt joint, greatly improving the safety and reliability of the equipment. In addition, the sealing ring also has good adaptability and universality, and can be easily applied to valves and other devices that need rotary butt joint communication, widening its application range. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole structure diagram of one side of the rotary reversing sealing ring applied to the blood separator;

[0018] Fig. 2 It is a structure diagram of the other side of the rotary reversing sealing ring applied to the blood separator;

[0019] Fig. 3 It is a sectional view of the rotary reversing sealing ring applied to the blood separator;

[0020] Fig. 4 And Fig. 5 It is a structure diagram of the first sealing member;

[0021] Fig. 6 It is a structure diagram of the second sealing member;

[0022] Figs. 1-6The reference signs in the drawings are respectively indicated as: cover body 1, first butt joint 11, second butt joint 12, eccentric through hole 13, limiting clamping groove 14, first sealing element 21, second sealing element 22, anti-rotation boss 23, sealing groove 24, anti-leakage protrusion 25, first through hole 26, second through hole 27. DETAILED DESCRIPTION

[0023] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figs. 1-3 The utility model provides a kind of rotation change sealing ring applied to blood separator, in blood processing equipment, especially in blood separator component, rotation change sealing ring plays a vital role.It not only ensures the safe, leak-free transmission of blood between two chambers, but also allows the switching of chambers through its unique design, thereby improving the flexibility and efficiency of blood processing equipment. A specific embodiment of a rotation change sealing ring applied to blood separator will be described in detail below, which aims to meet the above requirements and has high reliability and durability.

[0025] Firstly, the core component of rotation change sealing ring is cover body 1. Cover body 1 is designed to have sufficient strength and rigidity so as to be firmly clamped on the inner wall of blood separator. In order to achieve this, a plurality of limiting clamping grooves 14 are provided on the circumferential surface of cover body 1. These limiting clamping grooves 14 are accurately positioned and sized to be clamped with the limiting posts provided on the inner wall of blood separator. This clamping mechanism not only ensures the stable installation of cover body 1 in blood separator, but also prevents the loosening or misalignment of butt joint due to pressure fluctuation or mechanical vibration during blood separation process.

[0026] Refer to Figs. 4-5 The top of cover body 1 is provided with first butt joint 11 for butt joint communication with the first chamber of blood separator. The inside of first butt joint 11 is provided with first sealing element 21, which mainly prevents blood from leaking during transmission. In order to ensure the best sealing effect, the circumferential edge of first sealing element 21 is provided with sealing groove 24 matched with cover body 1. The cooperation of sealing groove 24 and cover body 1 forms a multi-stage sealing structure, which can enhance the reliability and durability of sealing.

[0027] In addition, a plurality of through holes are formed on the first sealing member 21, the number and position of which are determined according to the chamber structure and requirements of the blood separator. In this embodiment, it is assumed that two through holes (a first through hole 26 and a second through hole 27) are formed on the first sealing member 21, which are respectively connected with the through holes (or pipelines) of the first chamber and the second chamber of the blood separator. In order to ensure that the first sealing member 21 will not be detached due to the rotating movement during the reversing of the rotating separation chamber to realize the chamber switching, a rotation-preventing boss 23 is arranged on one side of the first sealing member 21. The rotation-preventing boss 23 is clamped by the clamping groove arranged on the lower end surface of the chamber, thereby providing additional stability and safety.

[0028] In addition, a plurality of through holes are formed on the first sealing member 21, the number and position of which are determined according to the chamber structure and requirements of the blood separator. In this embodiment, it is assumed that two through holes (a first through hole 26 and a second through hole 27) are formed on the first sealing member 21, which are respectively connected with the through holes (or pipelines) of the first chamber and the second chamber of the blood separator. In order to ensure that the first sealing member 21 will not be detached due to the rotating movement during the reversing of the rotating separation chamber to realize the chamber switching, a rotation-preventing boss 23 is arranged on one side of the first sealing member 21. The rotation-preventing boss 23 is clamped by the clamping groove arranged on the lower end surface of the chamber, thereby providing additional stability and safety.

[0029] In addition to the first connecting port 11 and the first sealing member 21, the bottom of the cover body 1 is also provided with a second connecting port 12. The second connecting port 12 is used to connect and communicate with the second chamber of the blood separator. Similar to the first connecting port 11, the inside of the second connecting port 12 is also provided with a sealing member, i.e. a second sealing member 22. The shape of the second sealing member 22 is designed as a hollow cylinder, which is convenient for connecting with the pipeline of the chamber.

[0030] Referring to Fig. 6 , the inside of the second sealing member 22 is also provided with a through hole, which is similar in function to the through hole of the first sealing member 21, and is used for the transmission of blood. In addition, the through hole edge of the second sealing member 22 is also provided with a leakage-preventing boss 25 to enhance the sealing effect. In addition, the circumferential edge of the second sealing member 22 is also provided with a sealing groove 24 matched with the cover body 1. This multi-level sealing structure ensures the leak-free connection between the second connecting port 12 and the second chamber of the blood separator.

[0031] The first connecting port 11 and the second connecting port 12 on the upper and lower end surfaces of the cover body 1 are connected through an eccentric through hole 13. This eccentric through hole 13 is another key element in the design of the rotating reversing sealing ring. It allows the first connecting port 11 and the second connecting port 12 to be connected or closed through different paths during the rotation. This design allows the blood to flexibly switch the transmission path between the two chambers without interrupting the blood processing process.

[0032] In the working process of the rotary switching seal ring, when switching between chambers is needed, the cover 1 (and the first seal 21 and the second seal 22 connected thereto) will rotate relative to the inner wall of the blood separator. Due to the cooperation of the anti-rotation boss 23 and the clamping groove on the lower end face of the chamber, the first seal 21 will not fall off during rotation. At the same time, due to the existence of the eccentric through hole 13, the communication path between the first interface 11 and the second interface 12 will change with the change of the rotation angle. When rotated to a certain position, the through hole of the first seal 21 will communicate with the eccentric through hole 13, thereby allowing blood to be transferred from the first chamber to the second chamber; vice versa.

[0033] In order to ensure the stability and reliability of the rotary switching seal ring during long-term use, the material selection of all components is crucial. The cover 1 is usually made of high-strength, corrosion-resistant metal materials to ensure that it can withstand various mechanical and chemical stresses during blood processing. The first seal 21 and the second seal 22 are usually made of high-performance elastic materials such as silicone rubber or fluororubber. These materials not only have excellent sealing performance, but also can maintain their elasticity and durability within a wide range of temperature and pressure.

[0034] When installing the rotary switching seal ring, first ensure that the inner wall of the blood separator and the circumferential surface of the cover 1 are free of any impurities or damage. Then, align the cover 1 with the inner wall of the blood separator and rotate or push it gently until the limiting clamping groove 14 is fully clamped with the limiting column. During this process, care should be taken not to apply excessive force to avoid damaging the components or causing improper installation.

[0035] In practical applications, the rotary switching seal ring has been widely used in various blood processing equipment such as hemodialysis machines, plasma separators, etc. These devices often need to switch blood between different chambers for different processing steps. The appearance of the rotary switching seal ring not only simplifies these steps, but also greatly improves the reliability and safety of the equipment.

[0036] In summary, the rotary switching seal ring applied to the blood separator is a highly innovative and practical blood processing equipment component that ensures safe, leak-free transmission of blood between two chambers and allows flexible switching of chambers through unique design and advanced material selection. Careful consideration of material selection, size and shape design, quality control, etc. is needed during design and manufacturing to ensure its performance and reliability. Regular inspection and maintenance are required during use to ensure long-term stable operation.

[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary changeover seal ring for use in a blood separator, characterized by The utility model relates to a blood separator cover body, including: Cover body (1) is clamped on the inner wall of blood separator, the top of cover body (1) is equipped with first pair interface (11), the inside of first pair interface (11) is equipped with first sealing element (21), the bottom of cover body (1) is equipped with second pair interface (12), the inside of second pair interface (12) is equipped with second sealing element (22), first pair interface (11) and second pair interface (12) are communicated through eccentric through -hole (13), first pair interface (11) and second pair interface (12) are communicated with the two chambers of blood separator respectively.

2. The rotary shift seal ring for use in a blood separator according to claim 1, wherein Multiple through -holes are set up on the first sealing element (21), and the through -hole edge of first sealing element (21) is equipped with leakage prevention convex (25).

3. The rotary shift seal for use in a blood separator according to claim 1, wherein The side of first sealing element (21) is equipped with anti -rotation boss (23).

4. The rotary shift seal for use in a blood separator according to claim 1, wherein The circumferential edge of first sealing element (21) is equipped with sealing groove (24) compatible with cover body (1).

5. The rotary shift seal for use in a blood separator according to claim 1, wherein The shape of second sealing element (22) is hollow cylindrical.

6. The rotary shift seal for use in a blood separator according to claim 1, wherein, The inside of second sealing element (22) is equipped with through -hole, and the edge of the through -hole of second sealing element (22) is provided with leakage prevention convex (25).

7. The rotary shift seal for use in a blood separator according to claim 1, wherein The circumferential edge of second sealing element (22) is equipped with sealing groove (24) compatible with cover body (1).

8. The rotary shift seal for a blood separator according to any one of claims 1 to 7, wherein Multiple limit card slots (14) are set up on the circumferential surface of cover body (1).

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