Hemodialysis catheter device with multiple connectors

Abstract

The utility model discloses a hemodialysis catheter device with multiple connectors. The hemodialysis catheter device comprises a catheter and a conversion connector communicated with the catheter. The adapter can be a single-cavity interface, a double-cavity interface and a multi-cavity interface; the fixed wing is arranged on the adapter and is used for limiting and fixing the catheter; each connector assembly can be connected with a single-cavity connector, a double-cavity connector and a multi-cavity connector. Each connector assembly comprises a first outer extension tube, an ID identification piece and a catheter clamp, wherein the end, away from the conversion connector, of each first outer extension tube is connected with a Luer connector, and the ID identification piece and the catheter clamp are arranged on the first outer extension tube. Through the combination of the catheter and the adapter and the multi-cavity design of the adapter, different numbers of multi-connector dialysis catheter devices can be formed, and the functionality and practicability of the multi-connector dialysis catheter devices are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a multi-connector hemodialysis catheter device. Background Art

[0002] Hemodialysis catheters are primarily used to create short-term venous access for hemodialysis, blood sampling, blood pressure measurement, and fluid infusion. The working principle of a hemodialysis catheter is that the tube is inserted into the central venous system and then connected to the hemodialysis catheter circuit and the dialysis machine.

[0003] Existing hemodialysis catheters have a single function and a low adaptability range. Therefore, a multi-connector hemodialysis catheter device is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-connector hemodialysis catheter device. Through the combination of the catheter and the conversion connector, as well as the multi-cavity design of the conversion connector itself, different numbers of multi-connector hemodialysis catheter devices can be formed, thereby improving its functionality and practicality.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-connector hemodialysis catheter device, comprising: a catheter, and a conversion joint connected to the catheter; the conversion joint can be a single-cavity interface, a double-cavity joint, and a multi-cavity interface; a fixing wing provided on the conversion joint, for limiting and fixing the catheter; and a plurality of groups of connector assemblies, each group of the connector assemblies can be connected to a single-cavity interface, a double-cavity joint, and a multi-cavity interface; and each group of the connector assemblies includes a first outer extension tube, the end of the first outer extension tube away from the conversion joint is connected to a Luer connector, and an ID identification piece and a catheter clamp respectively provided on the first outer extension tube.

[0006] Preferably, a protective sleeve is further included, and the protective sleeve can be sleeved on the outer wall of the catheter.

[0007] Preferably, a locking ring is provided at the end of one group of the Luer connectors, and a supporting inner rod is connected to the upper portion of the locking ring. One end of the supporting inner rod passes through the Luer connector, the first outer extension tube, and the conversion connector in sequence and abuts against the end of the catheter; when the supporting inner rod acts on the end of the catheter, the locking ring acts on the end of the Luer connector to lock the supporting inner rod.

[0008] Preferably, the other end of the supporting inner rod is connected to a Luer handle.

[0009] Preferably, the conduit is provided with a wedge-shaped step portion near the end.

[0010] Preferably, the number of the multi-cavity interfaces where the conversion joints are located is , and they are distributed in a fan shape.

[0011] Preferably, it also includes a center-out connector tube structure, which includes a second outer extension tube, one end of which is connected to the middle of the multi-cavity interface where the conversion connector is located, and the other end of which is connected to a center-out Luer connector.

[0012] Preferably, a sliding buckle is further provided in the middle portion of the second outer extension tube, through the sliding buckle provided on the second outer extension tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model uses a conversion joint at the end of the catheter. Due to the multi-cavity design of the conversion joint, the conversion joint can be a single-cavity interface, a double-cavity connector and a multi-cavity interface, and can be assembled with different groups of connector components. That is, this design can form different numbers of multi-connector dialysis catheter devices, thereby improving their functionality and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a double-lumen catheter of the present invention;

[0016] Figure 2 for Figure 1 A schematic structural diagram of another embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the multi-lumen catheter of the utility model;

[0018] Figure 4 for Figure 3 Another state structural diagram of ;

[0019] Figure 5 This is a schematic diagram of the structure of a single-lumen catheter of the present utility model.

[0020] In the figure: 1. Luer connector; 2. ID identification piece; 3. Catheter clamp; 4. First external extension tube; 5. Fixed wing; 6. Adapter; 7. Catheter; 8. Protective sleeve; 9. Center-exit Luer connector; 10. Second external extension tube; 11. Slide buckle; 12. Locking ring; 13. Luer handle; 14. Support inner rod. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. The following describes various embodiments of the present invention in detail with reference to the accompanying drawings.

[0022] Example 1

[0023] See also Figures 1 to 5 The present invention preferably provides a technical solution: a multi-connector hemodialysis catheter device, comprising: a catheter 7, and a conversion connector 6 connected to the catheter 7; the conversion connector 6 can be a single-cavity interface, a double-cavity connector, and a multi-cavity interface; a fixing wing 5 provided on the conversion connector 6, for limiting and fixing the catheter 7; and a plurality of groups of connector assemblies, each group of connector assemblies can be connected to a single-cavity interface, a double-cavity connector, and a multi-cavity interface; and each group of connector assemblies includes a first outer extension tube 4, the end of the first outer extension tube 4 away from the conversion connector 6 is connected to a Luer connector 1, and an ID identification piece 2 and a catheter clamp 3 respectively provided on the first outer extension tube 4.

[0024] In this application, a new type of hemodialysis catheter device is designed. Specifically, through the conversion joint 6 at the end of the catheter 7, due to the opening shape of the conversion joint 6, that is, the conversion joint 6 can be a single-lumen interface, a double-lumen interface, and a multi-lumen interface. When paired with different groups of connector components, when the conversion joint 6 is a single-lumen interface, it can form the following Figure 5 As shown, when the conversion joint 6 is a double-cavity interface, it can form the following Figure 1 When it is a multi-cavity interface, preferably 3, it can form Figure 3 、 4 As shown, this design, through the multi-lumen design of the catheter 7 and the conversion joint 6, can form a multi-connector dialysis catheter device with different numbers, thereby improving its functionality and practicality.

[0025] Furthermore, a protective cover 8 is included, which can be sleeved on the outer wall of the catheter 7. Figure 1 、 2 As shown, the protective sleeve 8 acts on the outer wall of the catheter 7 to provide peripheral protection.

[0026] Example 2

[0027] As another embodiment of the present invention, a locking ring 12 is provided at the end of one set of Luer connectors 1, and a supporting inner rod 14 is connected to the upper portion of the locking ring 12. One end of the supporting inner rod 14 passes through the Luer connector 1, the first outer extension tube 4, and the conversion connector 6 in sequence and abuts against the end of the catheter 7; when the supporting inner rod 14 acts on the end of the catheter 7, the locking ring 12 acts on the end of the Luer connector 1 to lock the supporting inner rod 14.

[0028] In this embodiment, the comparison Figure 1 、 2 As shown, a locking ring 12 is provided at the end of one of the Luer connectors 1, and a supporting inner rod 14 is provided, which sequentially passes through the Luer connector 1, the first outer extension tube 4, the conversion connector 6 and abuts against the end of the catheter 7. Since the entire tube body is relatively soft, the supporting inner rod 14 is built in and sequentially passes through to provide support, thereby greatly improving the catheterization work.

[0029] Furthermore, the other end of the supporting inner rod 14 is connected to a Luer handle 13 . By further providing the Luer handle 13 , the medical staff can perform the catheterization operation when holding the Luer handle 13 .

[0030] Furthermore, a wedge-shaped step portion is provided near the end of the catheter 7. With this design, the catheter 7 has a transition surface during insertion, which can reduce the patient's discomfort.

[0031] Example 3

[0032] As another embodiment of the present invention, the number of multi-cavity interfaces where the conversion joints 6 are located is 3 and they are distributed in a fan shape.

[0033] In this example, an embodiment of a polylinker is provided, such as Figure 3 and 4 As shown, it can have the function of plugging three connectors.

[0034] Furthermore, it also includes a middle-outlet joint pipe structure, which includes a second outer extension tube 10. One end of the second outer extension tube 10 is connected to the middle of the multi-cavity interface where the conversion joint 6 is located, and the other end is connected to the middle-outlet Luer connector 9. Through the further arrangement of the middle-outlet joint pipe structure, it is arranged in the middle of the conversion joint 6, its length is longer than the joint components on both sides, and the diameter of the pipe is also relatively thin.

[0035] Furthermore, a sliding buckle 11 is provided in the middle of the second outer extension tube 10. The sliding buckle 11 provided on the second outer extension tube 10 has a function similar to that of the catheter clamp 3, which is used to squeeze the tube to stop the flow. It is an existing mature technology and is not redundant here.

[0036] In the present invention, unless otherwise clearly specified and limited, terms such as "install", "connect", "connect", and "fix" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection. There are many ways of detachable installation, for example, it can be through plug-in and snap-fitting, or through bolt connection, etc.

[0037] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made to the present invention by technical engineers in this field based on the contents of the above-mentioned utility model shall fall within the protection of the present invention.

Claims

1. A multi-connector hemodialysis catheter device, characterized in that: include: A conduit (7), and a conversion joint (6) connected to the conduit (7); The conversion joint (6) can be a single-cavity joint, a double-cavity joint, or a multi-cavity joint; The fixing wing (5) provided on the conversion joint (6) is used for limiting and fixing the catheter (7); and several groups of connector assemblies, each group of connector assemblies can be connected to a single-cavity interface, a double-cavity connector, and a multi-cavity interface; Each group of the connector assemblies comprises a first outer extension tube (4), the end of the first outer extension tube (4) away from the conversion joint (6) is connected to a Luer connector (1), and an ID identification piece (2) and a catheter clamp (3) respectively arranged on the first outer extension tube (4).

2. A multi-connector hemodialysis catheter device according to claim 1, characterized in that: It also comprises a protective sleeve (8), which can be sleeved on the outer wall of the catheter (7).

3. A multi-connector hemodialysis catheter device according to claim 1, characterized in that: A locking ring (12) is provided at the end of one group of the Luer connectors (1), and a supporting inner rod (14) is connected to the upper portion of the locking ring (12), and one end of the supporting inner rod (14) passes through the Luer connector (1), the first outer extension tube (4), and the conversion connector (6) in sequence and contacts the end of the catheter (7); When the supporting inner rod (14) acts on the end of the catheter (7), the locking ring (12) acts on the end of the Luer connector (1) to lock the supporting inner rod (14).

4. A multi-connector hemodialysis catheter device according to claim 3, characterized in that: The other end of the supporting inner rod (14) is connected to a Luer handle (13).

5. A multi-connector hemodialysis catheter device according to claim 1, characterized in that: The conduit (7) is provided with a wedge-shaped step portion near the end.

6. A multi-connector hemodialysis catheter device according to claim 1, characterized in that: The number of multi-cavity interfaces where the conversion joints (6) are located is 3 and they are distributed in a fan shape.

7. A multi-connector hemodialysis catheter device according to claim 1, characterized in that: It also includes a center-out connector pipe structure, which includes a second external extension pipe (10), one end of which is connected to the middle of the multi-cavity interface where the conversion joint (6) is located, and the other end of which is connected to a center-out Luer connector (9).

8. A multi-connector hemodialysis catheter device according to claim 7, characterized in that: A sliding buckle (11) is also provided in the middle of the second outer extension tube (10), and the sliding buckle (11) provided on the second outer extension tube (10) is used.

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