Adapter for quickly switching dialyzer interface modes

Abstract

The utility model discloses an adapter for quickly switching dialyzer interface modes, which relates to the technical field of medical equipment and comprises a locking part, a connecting piece and a Luer taper, the connecting piece is arranged on the locking part, the Luer taper is arranged on the connecting piece, and the locking part, the connecting piece and the Luer taper are coaxially arranged. The locking part, the connecting piece and the Luer taper are communicated with one another, a first locking block is arranged on the Hansen taper of the dialyzer, and the locking part is matched with the first locking block. The adapter is arranged on a Hansen joint of a dialyzer in a sleeving mode, the adapter can be fixed to the Hansen joint through matching of the locking part and the first locking block, a dialysis pipeline can be connected through a Luer joint on the adapter, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an adapter for quickly switching dialyzer interface modes. Background Art

[0002] A hemodialysis device primarily consists of a dialysis machine, dialyzers, dialysis tubing, dialysate, and a water treatment system. The dialysis machine allows blood and dialysate to flow smoothly through the dialyzer, achieving the desired treatment. The dialyzer is a tube and container used for solute exchange between blood and dialysate, replacing kidney function and serving as a key component of hemodialysis. The dialysis tubing, used in conjunction with the dialysis machine, forms a disposable medical device for extracorporeal circulation during dialysis treatment. Dialysate is a solution containing a variety of ionic and non-ionic substances. Its primary components are four cations: sodium, potassium, calcium, and magnesium; and two anions: chloride and alkali. Some dialysates also contain glucose. Dialysate removes metabolic waste and maintains water, electrolyte, and acid-base balance. The water treatment system removes dissolved salts, organic matter, colloidal silica, macromolecules, and particulate matter not removed by pretreatment, purifying the water to meet dialysis water requirements.

[0003] The standard for dialyzer connectors is the Hansen connector, so a large number of dialyzers on the market use Hansen connectors, which can only be connected to the Hansen connector of the dialysis machine. Due to the clinical demand for continuous blood purification, the dialyzer is required to be directly connected to the dialysis tubing. However, the connectors on the dialysis tubing are all Luer connectors, so the dialysis tubing cannot be directly connected to the dialyzer. In order to meet the needs of continuous blood purification, some dialyzers have designed the Hansen connector of the dialyzer as a Luer connector. However, dialyzers designed in this way can only be connected to the dialysis tubing, and cannot be connected to the Hansen connector of the dialysis machine, which is inconvenient to operate. Utility Model Content

[0004] In response to the deficiencies in the prior art, the purpose of the present invention is to provide an adapter for quickly switching the dialyzer interface mode. After the adapter is connected and assembled on the dialyzer, the dialyzer can be connected to the dialysis pipeline; after removing the adapter, the dialyzer can be connected to the dialysis machine.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: an adapter for quickly switching the dialyzer interface mode, comprising a locking portion, a connecting piece and a Luer connector, wherein the connecting piece is arranged on the locking portion, and the Luer connector is arranged on the connecting piece, and the locking portion, the connecting piece and the Luer connector are coaxially arranged, and the locking portion, the connecting piece and the Luer connector are interconnected. A first locking block is provided on the Hansen connector of the dialyzer, and the locking portion and the first locking block are arranged in cooperation.

[0006] Compared with the existing technology, the principle of the present invention is as follows: the adapter is put on the Hansen connector of the dialyzer, and the adapter can be fixed on the Hansen connector through the cooperation between the locking part and the first locking block. The dialysis pipeline can be connected through the Luer connector on the adapter, which is easy to operate.

[0007] Furthermore, the locking part includes a mounting ring and a second locking block, the second locking block is L-shaped, the second locking block is fixedly mounted on the side of the mounting ring away from the connecting member, and the short side of the L-shaped second locking block is parallel to the central axis of the mounting ring, the side wall of the second locking block can be against the side wall of the first locking block, and the connecting member is coaxially fixed on the mounting ring.

[0008] Furthermore, the number of the first locking blocks is greater than or equal to one, the first locking blocks are evenly distributed circumferentially on the outer circumference of the Hansen joint, and the spacing between two adjacent first locking blocks is greater than the length of the long side of the second locking block.

[0009] Furthermore, the number of the second locking blocks is greater than or equal to one, the second locking blocks are evenly distributed circumferentially on the mounting ring, and the arrangement direction of the L-shaped second locking blocks is the same, and the distance between two adjacent second locking blocks is greater than the length of the first locking block.

[0010] Furthermore, the cross section of the first locking block is approximately a right-angled trapezoid, and the long side of the second locking block is provided with an inclined surface, and the inclined surface of the second locking block can be connected to the inclined surface of the right-angled trapezoid.

[0011] Furthermore, the connecting piece is a mounting tube, which is coaxially fixedly mounted on the mounting ring. The inner diameter of the mounting tube is equal to the outer diameter of the Hansen connector. The mounting tube and the mounting ring are stepped. The second locking block can be connected to the surface of the Hansen connector. The Luer connector is coaxially fixedly mounted on the side of the mounting tube away from the mounting ring.

[0012] Furthermore, a sealing gasket is provided in the connecting piece, and the Hansen joint can abut against the sealing gasket.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the cooperation of the locking part and the first locking block, the adapter can be easily fixed on the Hansen connector of the dialyzer. By replacing the Hansen connector with a Luer connector, the dialysis tubing can be directly connected to the dialyzer. The operation is simple and convenient for meeting the requirements of continuous blood purification.

[0015] 2. By setting the inclined surface of the second locking block to be connected with the inclined surface of the right-angled trapezoid, the second locking block can be easily rotated to the side of the first locking block close to the dialyzer, so that the adapter can be more stably mounted on the Hansen connector of the dialyzer.

[0016] 3. The setting of the sealing gasket can make the adapter more stable during operation and reduce the possibility of leakage during the dialysis process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the Hansen connector in the present invention;

[0020] Figure 4 This is a schematic structural diagram of the transfer joint of the utility model;

[0021] Figure 5 This is a cross-sectional view of the transfer joint of the utility model

[0022] Figure 6 This is a cross-sectional view of a new Hansen connector used in conjunction with an adapter.

[0023] In the above drawings:

[0024] 1. Dialyzer;

[0025] 2. Hansen connector; 201. First locking block;

[0026] 3. Adapter; 301. Mounting ring; 302. Second locking block; 303. Mounting cylinder; 304. Luer connector;

[0027] 4. Sealing gasket. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; the structures described in various embodiments can be freely combined without any conflict in structure or principle.

[0029] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and description, and should not be construed as indicating or implying relative importance.

[0031] Below with reference to accompanying drawing some embodiment of the present utility model is described:

[0032] like Figure 1-6 As shown, the present invention proposes an adapter for quickly switching the dialyzer interface mode, including a locking portion, a connecting piece and a Luer connector 304. The connecting piece is arranged on the locking portion, and the Luer connector 304 is arranged on the connecting piece. The locking portion, the connecting piece and the Luer connector 304 are coaxially arranged and communicate with each other. A first locking block 201 is provided on the Hansen connector 2 of the dialyzer 1, and the locking portion is arranged in coordination with the first locking block 201.

[0033] The locking portion, the connector and the Luer connector 304 are integrally formed. By putting the adapter 3 on the Hansen connector 2 of the dialyzer 1 and cooperating with the locking portion and the first locking block 201, the adapter 3 can be fixed on the Hansen connector 2. The Hansen connector 2 is replaced with the Luer connector 304, and then the dialysis line can be connected through the Luer connector 304 on the adapter 3, which is easy to operate.

[0034] Furthermore, if Figure 1 、 Figure 4 and Figure 5 As shown, the locking portion includes a mounting ring 301 and a second locking block 302. The second locking block 302 is L-shaped. The second locking block 302 is fixedly mounted on the side of the mounting ring 301 away from the connecting member, and the short side of the L-shaped second locking block 302 is parallel to the central axis of the mounting ring 301. The side wall of the second locking block 302 can be abutted against the side wall of the first locking block 201, and the connecting member is coaxially fixedly mounted on the mounting ring 301.

[0035] The second locking block 302 is integrally formed on the locking ring, and is driven to rotate synchronously by the rotating connecting piece until the second locking block 302 abuts against the side wall of the first locking block 201. At this time, the first locking block 201 can limit the second locking block 302, so that the adapter 3 can be fixed on the Hansen connector 2, which is simple and convenient to operate.

[0036] Furthermore, if Figure 3 As shown, the number of the first locking blocks 201 is greater than or equal to one, the first locking blocks 201 are uniformly distributed around the periphery of the Hansen connector 2 , and the spacing between two adjacent first locking blocks 201 is greater than the length of the long side of the second locking block 302 .

[0037] The number of the first locking blocks 201 can be two, three or four, etc., as long as the distance between two adjacent first locking blocks 201 is greater than the length of the long side of the L-shaped second locking block 302. Here, the number of the first locking blocks 201 is preferably four. When the second locking block 302 is rotated and abuts against two or more first locking blocks 201, the adapter 3 can be fixed on the Hansen connector 2, which is simple and convenient to operate.

[0038] Furthermore, the number of the second locking blocks 302 is greater than or equal to one, the second locking blocks 302 are evenly distributed circumferentially on the mounting ring 301, and the arrangement direction of the L-shaped second locking blocks 302 is the same, and the distance between two adjacent second locking blocks 302 is greater than the length of the first locking block 201.

[0039] The number of second locking blocks 302 can be two, three, or four, as long as the width between two adjacent second locking blocks 302 is greater than the length of the first locking block 201. Preferably, there are two second locking blocks 302, and the two L-shaped second locking blocks 302 are arranged in the same direction. The device can be rotated to any angle to fit over the Hansen connector 2. After rotating the second locking blocks 302, the adapter 3 can be secured to the Hansen connector 2 by respectively abutting the multiple second locking blocks 302 against the multiple first locking blocks 201, providing simple and convenient operation.

[0040] Furthermore, if Figure 3 and Figure 4 As shown, the cross section of the first locking block 201 is approximately a right-angled trapezoid, and the long side of the second locking block 302 is provided with an inclined surface, and the inclined surface of the second locking block 302 can be connected to the inclined surface of the right-angled trapezoid.

[0041] By setting the inclined surface of the second locking block 302 to be connected with the inclined surface of the right-angled trapezoid, when the second locking block 302 is rotated to gradually contact the first locking block 201, the force of the first locking block 201 on the second locking block 302 will gradually increase, and the second locking block 302 can be easily rotated to the side of the first locking block 201 close to the dialyzer 1, so that the adapter 3 can be more stably mounted on the Hansen connector 2 of the dialyzer 1, and it can be ensured that the first locking block 201 can firmly limit the second locking block 302, so that the device can be stably mounted on the Hansen connector 2, reducing the possibility of loosening of the adapter 3.

[0042] Furthermore, if Figure 4 and Figure 5As shown, the connecting member is a mounting cylinder 303, which is coaxially fixedly mounted on the mounting ring 301. The inner diameter of the mounting cylinder 303 is equal to the outer diameter of the Hansen connector 2. The mounting cylinder 303 and the mounting ring 301 are stepped. The second locking block 302 can be connected to the surface of the Hansen connector 2. The Luer connector 304 is coaxially fixedly mounted on the side of the mounting cylinder 303 away from the mounting ring 301.

[0043] The mounting tube 303 , the mounting ring 301 and the Hansen connector 2 are integrally formed. The inner diameter of the mounting ring 301 is larger than the inner diameter of the mounting tube 303 , which facilitates the installation of the second locking block 302 , thereby ensuring the stability of the adapter 3 installed on the Hansen connector 2 .

[0044] Furthermore, if Figure 5 and Figure 6 As shown, a sealing gasket 4 is provided in the connector, and the Hansen connector 2 can abut against the sealing gasket 4 .

[0045] The sealing gasket 4 is embedded in the mounting tube 303. The provision of the sealing gasket 4 can make the adapter 3 more stable during operation and reduce the possibility of leakage during the dialysis process.

Claims

1. An adapter for quickly switching dialyzer interface modes, characterized by: The dialyzer (1) comprises a locking portion, a connecting piece and a Luer connector (304), wherein the connecting piece is arranged on the locking portion, and the Luer connector (304) is arranged on the connecting piece, and the locking portion, the connecting piece and the Luer connector (304) are coaxially arranged, and the locking portion, the connecting piece and the Luer connector (304) are interconnected. A first locking block (201) is arranged on the Hansen connector (2) of the dialyzer (1), and the locking portion and the first locking block (201) are arranged in cooperation.

2. The adapter for quickly switching dialyzer interface modes according to claim 1, characterized in that: The locking portion comprises a mounting ring (301) and a second locking block (302), wherein the second locking block (302) is L-shaped and fixedly mounted on a side of the mounting ring (301) away from the connecting member, and the short side of the L-shaped second locking block (302) is parallel to the central axis of the mounting ring (301), and the side wall of the second locking block (302) can abut against the side wall of the first locking block (201), and the connecting member is coaxially fixedly mounted on the mounting ring (301).

3. The adapter for quickly switching dialyzer interface modes according to claim 2, characterized in that: The number of the first locking blocks (201) is greater than or equal to one, the first locking blocks (201) are uniformly distributed circumferentially on the outer periphery of the Hansen joint (2), and the spacing between two adjacent first locking blocks (201) is greater than the length of the long side of the second locking block (302).

4. The adapter for quickly switching dialyzer interface modes according to claim 2 or 3, characterized in that: The number of the second locking blocks (302) is greater than or equal to one, the second locking blocks (302) are uniformly distributed circumferentially on the mounting ring (301), the arrangement direction of the L-shaped second locking blocks (302) is the same, and the spacing between two adjacent second locking blocks (302) is greater than the length of the first locking block (201).

5. The adapter for quickly switching dialyzer interface modes according to claim 2 or 3, characterized in that: The cross section of the first locking block (201) is approximately a right-angled trapezoid, and the long side of the second locking block (302) is provided with an inclined surface, and the inclined surface of the second locking block (302) can be connected to the inclined surface of the right-angled trapezoid.

6. The adapter for quickly switching dialyzer interface modes according to claim 4, characterized in that: The cross section of the first locking block (201) is approximately a right-angled trapezoid, and the long side of the second locking block (302) is provided with an inclined surface, and the inclined surface of the second locking block (302) can be connected to the inclined surface of the right-angled trapezoid.

7. An adapter for quickly switching dialyzer interface modes according to claim 2, 3 or 6, characterized in that: The connecting piece is a mounting cylinder (303), which is coaxially fixedly mounted on the mounting ring (301). The inner diameter of the mounting cylinder (303) is equal to the outer diameter of the Hansen connector (2). The mounting cylinder (303) and the mounting ring (301) are stepped. The second locking block (302) can be connected to the surface of the Hansen connector (2). The Luer connector (304) is coaxially fixedly mounted on a side of the mounting cylinder (303) away from the mounting ring (301).

8. The adapter for quickly switching dialyzer interface modes according to claim 4, characterized in that: The connecting piece is a mounting cylinder (303), which is coaxially fixedly mounted on the mounting ring (301). The inner diameter of the mounting cylinder (303) is equal to the outer diameter of the Hansen connector (2). The mounting cylinder (303) and the mounting ring (301) are stepped. The second locking block (302) can be connected to the surface of the Hansen connector (2). The Luer connector (304) is coaxially fixedly mounted on a side of the mounting cylinder (303) away from the mounting ring (301).

9. The adapter for quickly switching dialyzer interface modes according to claim 5, characterized in that: The connecting piece is a mounting cylinder (303), which is coaxially fixedly mounted on the mounting ring (301). The inner diameter of the mounting cylinder (303) is equal to the outer diameter of the Hansen connector (2). The mounting cylinder (303) and the mounting ring (301) are stepped. The second locking block (302) can be connected to the surface of the Hansen connector (2). The Luer connector (304) is coaxially fixedly mounted on a side of the mounting cylinder (303) away from the mounting ring (301).

10. An adapter for quickly switching dialyzer interface modes according to claim 1, 2, 3, 6, 8 or 9, characterized in that: A sealing gasket (4) is provided in the connecting piece, and the Hansen joint (2) can abut against the sealing gasket (4).

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