Hemodialyzer concentrated solution suction tube connector capable of preventing reverse connection in rotating direction

Abstract

The hemodialysis instrument concentrated solution suction tube connector comprises a base and a handle, a suction tube hole is formed in the center of the base, a high arc-shaped locking block and a low arc-shaped locking block are arranged on the two sides of the base respectively, and grooves with different heights and the same length are formed in the lower portion of the inner side of the base. A high buckle and a low buckle are arranged on the two sides of the handle and matched with the arc-shaped locking blocks on the base. The suction tube connector can be connected only in the correct direction, and the reverse connection prevention capacity in the rotating direction is improved. A cavity is formed in the handle, and the straw can penetrate through the base from the straw connecting part to enter the cavity of the handle and then penetrate out of the side wall. The base is further provided with a cover mounting part used for protecting the straw hole and the annular connecting column. The annular connecting column is connected with the straw connecting part through the tail end threads. When the straw is horizontally placed, the rotary handle and the base are rotationally fixed and drive the straw to rotate at the same time, when the rotary handle and the base are completely fixed, the straw penetrates out of the front side and the rear side or the lower end of the handle, and the situation that the straw penetrates out of the upper end of the handle and is bent to be damaged or slow in flow speed is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a hemodialysis concentrate suction tube connector that prevents reverse rotation. Background Technology

[0002] In the use of hemodialysis machines, the accurate and stable delivery of concentrate is crucial to ensuring treatment effectiveness. Traditional hemodialysis machine concentrate suction tubing connectors often have a risk of incorrect connection. If connected incorrectly, this can not only lead to poor concentrate delivery but also damage the equipment and even affect the patient's treatment outcome. Furthermore, if the tubing is bent during connection due to improper design, it can easily be damaged or the flow rate can be slowed, thus affecting the concentrate delivery efficiency and treatment efficacy.

[0003] To address these issues, the industry began exploring safer and more stable pipette connector designs. As a result, a hemodialysis concentrate pipette connector designed to prevent reverse rotation was developed, effectively eliminating the possibility of incorrect connection and preventing pipette damage or slow flow rates due to bending. Utility Model Content

[0004] The purpose of this invention is to provide a hemodialysis concentrate pipette connector that prevents reverse rotation, thus solving the problems of existing connectors that may cause the pipette to bend or be connected in reverse if it is inserted from the top.

[0005] This utility model is achieved through the following technical solution:

[0006] A hemodialysis concentrate pipette connector with anti-reverse rotation includes a handle and a base. The base has a pipette hole at its center for the pipette to pass through. Arc-shaped locking blocks of unequal height but equal length are provided on both sides of the pipette hole. A threaded annular connecting post is installed on the bottom of the base corresponding to the position of the pipette hole. The handle has buckles of unequal height on both sides that match the high and low arc-shaped locking blocks on the base. The handle has a cavity inside that is aligned with the pipette hole and can accommodate the pipette. A cavity outlet is provided on one side of the cavity for the pipette to pass through.

[0007] Furthermore,

[0008] The arc-shaped locking block is divided into an arc-shaped high locking block and an arc-shaped low locking block. The inner sides of the arc-shaped high locking block and the arc-shaped low locking block are close to the upper surface of the base, and grooves of different heights but the same length are opened.

[0009] Furthermore,

[0010] The grooves opened on the arc-shaped high locking block and the arc-shaped low locking block each penetrate one side of the arc-shaped high locking block and the arc-shaped low locking block to form a groove opening, and the groove opening is not on the same side of the arc-shaped high locking block and the arc-shaped low locking block.

[0011] Furthermore,

[0012] The buckles on both sides of the bottom of the handle are divided into high buckles and low buckles, and the width, height and length of the high buckles and low buckles are respectively matched with the corresponding grooves.

[0013] Furthermore,

[0014] The base has a cover mounting part with a cover installed on the side where the arc-shaped locking block is not provided.

[0015] Furthermore,

[0016] The annular connecting post is connected to the straw connection part by the end thread.

[0017] Furthermore,

[0018] The straw passes through the straw connector, through the annular connecting post, through the straw hole into the cavity, and from the cavity outlet to the outside of the handle.

[0019] This utility model has the following advantages:

[0020] 1. By using arc-shaped locking blocks of unequal height but equal length, along with matching buckles, it is ensured that the straw connector can only be connected in the correct direction, effectively preventing operational errors or equipment damage caused by reverse connection. The groove design on the arc-shaped locking block further enhances the directional nature of the connector, allowing the handle buckle to be inserted and secured to the base in a specific way, further improving the ability to prevent reverse rotation.

[0021] 2. When the straw is placed horizontally, rotating the handle to lock it in place with the base allows the cavity outlet on the handle to face forward or backward or downward. This prevents the straw from bending due to gravity and being damaged when the cavity outlet on the handle faces upward, and also prevents the liquid drawn by the straw from flowing slowly or even becoming blocked at the bend.

[0022] 3. The base has a cover mounting part and a cover on the side without the arc-shaped locking block, so that the cover can be closed when the straw connector is not in use, protecting the straw hole and the annular connecting post from contamination or damage. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the straw connector structure;

[0025] Figure 2 This is a schematic diagram of the base structure;

[0026] Figure 3 Side view of the base;

[0027] Figure 4 Top view of the base;

[0028] Figure 5 This is a schematic diagram of the handle structure;

[0029] Figure 6 This is a perspective view of the handle;

[0030] Figure 7 A schematic diagram showing the complete structure of the base handle and straw connection;

[0031] Figure 8 This is a diagram showing the base and handle fully locked when the straw is placed horizontally.

[0032] Marked in the attached diagram:

[0033] 1-Handle, 10-High buckle, 11-Low buckle, 12-Cavity, 13-Cavity outlet, 2-Base, 20-Straw hole, 21-Arc-shaped locking block, 210-Arc-shaped high locking block, 211-Arc-shaped low locking block, 22-Groove, 23-Annular connecting post, 24-Lid mounting part, 25-Lid, 3-Straw connecting part, 4-Straw. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0035] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Example

[0038] See Figures 1 to 8 :

[0039] A hemodialysis concentrate pipette connector with anti-reverse rotation includes a handle 1 and a base 2. The base 2 has a pipette hole 20 at its center for the pipette 4 to pass through. Arc-shaped locking blocks 21 of unequal height but equal length are respectively provided on both sides of the pipette hole 20. A ring-shaped connecting post 23 with threaded end is installed on the bottom of the base 2 corresponding to the position of the pipette hole 20. The handle 1 has buckles of unequal height on both sides that match the arc-shaped locking blocks 211 on the base 2, one high and one low. The handle 1 has a cavity 12 inside that is aligned with the pipette hole 20 and can accommodate the pipette 4. A cavity outlet 13 is provided on one side of the cavity 12 for the pipette to pass through.

[0040] The cavity 12 inside the handle 1 that can accommodate the straw 4 coincides with the central axis of the straw hole 20 and the annular connecting post 23, forming a straw 4 channel. This design allows the straw 4 to smoothly pass through the straw hole 20 on the base 2 from the straw connection part 3 into the cavity 12 inside the handle 1 and out through the cavity outlet 13 to connect with other devices. When the entire straw 4 is placed horizontally, during the connection process, the cooperation between the handle 1 and the base 2 rotates, allowing the cavity outlet 13 on the handle 1 to face horizontally or downwards. This avoids the cavity outlet 13 on the handle 1 facing upwards, which would cause the straw 4 to bend due to gravity and be damaged. It also prevents the liquid drawn by the straw 4 from flowing slowly or even becoming blocked at the bend.

[0041] Furthermore,

[0042] The arc-shaped locking block 21 is divided into an arc-shaped high locking block 210 and an arc-shaped low locking block 211. The arc-shaped high locking block 210 and the arc-shaped low locking block 211 have grooves 22 of different heights but the same length that are close to the upper surface of the base 2 on their inner sides.

[0043] The arc-shaped locking block 21 is divided into two parts, high and low, and each part has a groove 22 of different heights. This design can ensure that the straw 4 connector has higher stability when connected. The grooves 22 of different heights can be matched with buckles of different heights, so that the handle 1 can only be fixed on the base 2 in the correct direction, thereby avoiding the possibility of connecting it backwards.

[0044] Furthermore,

[0045] The grooves 22 opened on the arc-shaped high locking block 210 and the arc-shaped low locking block 211 both penetrate one side of the arc-shaped high locking block 210 and the arc-shaped low locking block 211 to form groove 22 openings, and the groove 22 openings are not on the same side of the arc-shaped high locking block 210 and the arc-shaped low locking block 211.

[0046] By ensuring that the grooves 22 of the arc-shaped high locking block 210 and the arc-shaped low locking block 211 are not on the same side, it can be ensured that the buckle of the handle 1 can only be inserted into the corresponding groove 22 in the correct way. By rotating the handle 1 to connect with the base 2, the directionality of the connector is enhanced, and the anti-rotation and reverse connection capability of the connector is further increased.

[0047] Furthermore,

[0048] The buckles on both sides of the bottom of the handle 1 are divided into high buckles 10 and low buckles 11. The width, height and length of the high buckles 10 and low buckles 11 are respectively matched with the corresponding grooves 22.

[0049] Ensure that the high latch 10 and low latch 11 correspond to the different grooves 22 opened on the arc-shaped high locking block 210 and arc-shaped low locking block 211, so that the latches, arc-shaped locking blocks 21 and grooves 22 correspond one-to-one. The width, height and length of the high latch 10 and low latch 11 match the corresponding grooves 22. This ensures that the high latch 10 and low latch 11 can enter the matching grooves 22. As mentioned earlier, the grooves 22 are of the same length, so the lengths of the high latch 10 and low latch 11 are the same. This ensures that when the handle 1 and the base 2 are fully locked, the high latch 10 and low latch 11 can all enter the corresponding grooves 22.

[0050] Furthermore,

[0051] The base 2 has a cover mounting part 24 on the side where the arc-shaped locking block 21 is not provided, and a cover 25 is installed thereon.

[0052] The lid mounting part 24 is designed so that the lid 25 can be easily closed when the straw 4 connector is not needed, thereby protecting the straw hole 20 and the annular connecting post 23 from contamination or damage.

[0053] Furthermore,

[0054] The annular connecting post 23 is connected to the suction tube connecting part 3 by the end thread.

[0055] Furthermore,

[0056] The straw 4 passes through the straw connector 3, through the annular connecting post 23, enters the cavity through the straw hole 20, and reaches the outside of the handle 1 from the cavity outlet 13.

[0057] The principle of this utility model is as follows:

[0058] The straw connector 4 mainly consists of a base 2 and a handle 1. A straw hole 20 is formed in the center of the base 2 to accommodate and secure the straw 4. On both sides of the straw hole 20, arc-shaped locking blocks 21 of unequal height but equal length are respectively provided, namely, an arc-shaped high locking block 210 and an arc-shaped low locking block 211. The lower inner sides of these two arc-shaped locking blocks 21 are in close contact with the upper surface of the base 2, and each has a groove 22 of different height but equal length for matching with the buckle on the handle 1.

[0059] The design of the arc-shaped high locking block 210 and the arc-shaped low locking block 211 not only increases the stability of the connector, but also achieves the function of preventing reverse rotation through the grooves 22 of different heights. Specifically, the design of the grooves 22 ensures that the buckle on the handle 1 can only be inserted into the corresponding groove 22 in the correct manner, thus avoiding the possibility of reverse connection. In addition, the grooves 22 of the arc-shaped high locking block 210 and the arc-shaped low locking block 211 are not on the same side, which further enhances the directionality of the connector and ensures that the handle 1 can only be fixed on the base 2 in the correct direction.

[0060] The handle 1 has two high-mounted latches 10 and low-mounted latches 11 on its sides, which match the high and low arc-shaped locking blocks 21 on the base 2. The width, height, and length of these two latches are matched with the corresponding grooves 22, ensuring that the latches can smoothly enter and be fixed in the grooves 22. When the handle 1 and the base 2 are fully locked, the high-mounted latches 10 and low-mounted latches 11 can fully enter their corresponding grooves 22, thereby achieving a stable connection.

[0061] The base 2 is connected to the hemodialysis fluid suction tube connection part 3. The suction tube 4 passes through the suction tube connection part 3 and through the annular connecting post 23, and enters the cavity 12 inside the handle 1 through the suction tube hole 20. It then exits from the cavity outlet 13 to the outside of the handle 1. When the entire suction tube 4 is placed horizontally, when the handle 1 is rotated and tightly closed with the base 2, the handle 1 will drive the suction tube 4 to rotate. When tightened, the cavity outlet 13 on the handle 1 will face horizontally or downward, avoiding the cavity outlet 13 on the handle 1 from facing upward. This would prevent the suction tube 4 from being bent by gravity and damaged due to upward penetration, and also prevent the liquid drawn by the suction tube 4 from flowing slowly or even becoming blocked at the bend.

[0062] Furthermore, the base 2 has a cover mounting part 24 on the side without the arc-shaped locking block 21, which is used to cover the straw 4 connector with a cover 25 when it is not needed, protecting the straw hole 20 and the annular connecting post 23 from contamination or damage. The annular connecting post 23 is connected to the straw connector 3 by a thread at its end, thus reliably fixing the straw 4 connector.

[0063] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A hemodialysis machine concentrate pipette connector designed to prevent reverse rotation, characterized in that, The device includes a handle (1) and a base (2). The base (2) has a straw hole (20) at its center for the straw (4) to pass through. Arc-shaped locking blocks (21) of different heights but equal lengths are provided on both sides of the straw hole (20). A ring-shaped connecting post (23) with a threaded end is installed below the base (2) at the position corresponding to the straw hole (20). The handle (1) has buckles of different heights that match the high and low arc-shaped locking blocks (211) on the base (2). The handle (1) has a cavity (12) inside that is aligned with the straw hole (20) and can accommodate the straw (4). A cavity outlet (13) is provided on one side of the cavity (12) for the straw to pass through.

2. The anti-reverse rotation hemodialysis machine concentrate pipette connector according to claim 1, characterized in that, The arc-shaped locking block (21) is divided into an arc-shaped high locking block (210) and an arc-shaped low locking block (211). The inner sides of the arc-shaped high locking block (210) and the arc-shaped low locking block (211) are close to the upper surface of the base (2) with grooves (22) of different heights but the same length.

3. The anti-reverse rotation hemodialysis machine concentrate pipette connector according to claim 2, characterized in that, The grooves (22) opened on the arc-shaped high locking block (210) and the arc-shaped low locking block (211) all penetrate one side of the arc-shaped high locking block (210) and the arc-shaped low locking block (211) to form groove (22) openings, and the groove (22) openings are not on the same side of the arc-shaped high locking block (210) and the arc-shaped low locking block (211).

4. A hemodialysis machine concentrate pipette connector with anti-reverse rotation connection according to claim 3, characterized in that, The buckles on both sides of the bottom of the handle (1) are divided into high buckles (10) and low buckles (11). The width, height and length of the high buckles (10) and low buckles (11) are respectively matched with the corresponding grooves (22).

5. A hemodialysis machine concentrate pipette connector with anti-reverse rotation connection according to claim 1, characterized in that, The base (2) has a cover mounting part (24) with a cover (25) installed on the side where the arc-shaped locking block (21) is not provided.

6. A hemodialysis machine concentrate pipette connector with anti-reverse rotation connection according to claim 1, characterized in that, The annular connecting post (23) is connected to the suction tube connecting part (3) by the end thread.

7. A hemodialysis machine concentrate pipette connector with anti-reverse rotation connection according to claim 6, characterized in that, The straw (4) passes through the straw connector (3), through the annular connecting post (23), enters the cavity through the straw hole (20), and reaches the outside of the handle (1) from the cavity outlet (13).

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