Chest drainage catheter

Abstract

The utility model discloses a chest drainage catheter which comprises a catheter body, a fixing patch, a fixing nut, a fixing ring and a needleless connector, the fixing patch is slidably connected to the catheter body, the fixing nut is sleeved on the catheter body, one end of the fixing patch is in threaded connection with the fixing nut, and the other end of the fixing patch is in threaded connection with the fixing ring. The other end of the fixing patch can be attached to the skin surface of a patient to fix the catheter body, an opening is formed in the fixing ring, the inner side of the opening is fixedly connected with the fixing nut, a plurality of first ratchets are arranged on the inner side of the opening, and a plurality of second ratchets are arranged on the outer side of the opening. The first ratchets and the second ratchets are meshed, so that the fixing nut can be fixed on the catheter main body by the fixing ring; by the adoption of the catheter fixing patch, stable connection between the catheter and the fixing patch and between the fixing patch and a patient can be guaranteed, displacement of the catheter is avoided, air tightness in the catheter can be guaranteed, smooth drainage is guaranteed, and pain of the patient is relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical catheters, and in particular relates to a chest drainage catheter. Background Art

[0002] Thoracic drainage technology is a common technique for pneumothorax or pleural effusion and lung surgery. Clinically, after the chest drainage catheter is placed, a suture needle needs to be passed through the skin to fix the chest drainage catheter and prevent it from falling off. The suture needle passing through the skin will cause pain and other discomfort to the patient; secondly, the chest drainage catheter needs to be connected to a water seal bottle or a drainage bag. To prevent infection, the water seal bottle or the drainage bag needs to be replaced regularly. When replacing the water seal bottle or the drainage bag clinically, in order to ensure that air does not enter the chest cavity, the chest drainage catheter needs to be clamped. However, there is still a risk of air entering the chest cavity due to poor catheter clamping, which undoubtedly increases the cumbersomeness of the replacement process. At the same time, it is not convenient to disinfect the separation interface during replacement. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a chest drainage catheter, which can effectively solve the problems in the prior art that the chest drainage catheter needs to be fixed with sutures, the patient's pain is increased, and the air tightness of the catheter cannot be guaranteed.

[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0005] A chest drainage catheter comprises a catheter body, a fixing patch, a fixing nut, a fixing ring and a needleless connector, wherein the fixing patch is slidably connected to the catheter body, the fixing nut is sleeved on the catheter body, one end of the fixing patch is threadedly connected to the fixing nut, and the other end of the fixing patch can be attached to the skin surface of a patient to fix the catheter body, the fixing ring is fixed to the fixing nut, an opening is provided on the fixing ring, a plurality of first ratchet teeth are provided on the inner side of the opening, a plurality of second ratchet teeth are provided on the outer side of the opening, the first ratchet teeth and the second ratchet teeth are meshed and enable the fixing ring to fix the fixing nut on the catheter body.

[0006] As a preferred solution of the utility model, a guide wire inlet is provided at the head end of the catheter body, the needleless connector is arranged at the end of the catheter body, and a guide wire outlet is also provided at the end of the catheter body, and a cap is provided on the guide wire outlet.

[0007] As a preferred solution of the utility model, the fixing patch includes a connecting portion and a plurality of fixing portions, one end of the fixing portion is fixedly connected to the connecting portion, and the plurality of fixing portions are arranged at intervals in a fan shape.

[0008] As a preferred solution of the utility model, the fixing nut is provided with an internal thread, and the connecting portion is matched with an external thread.

[0009] As a preferred embodiment of the present invention, the needleless connector is threadedly connected to an adapter, one end of the adapter is provided with a first connection port for communicating with the needleless connector, and the other end of the adapter is provided with a second connection port for communicating with a drainage bag or a water seal bottle.

[0010] As a preferred solution of the utility model, the material of the fixing patch is medical dressing.

[0011] As a preferred solution of the utility model, the head end of the catheter is configured to be conical.

[0012] Compared with the prior art, the chest drainage catheter provided by the utility model has the following beneficial effects:

[0013] After the catheter body is in place, the fixing position is adjusted by sliding the fixing patch. After adjustment, the fixing patch is first attached to the skin, and then the fixing nut is screwed in so that the fixing nut is threadedly connected to one end of the fixing patch, and finally the fixing ring is buckled on the catheter body to ensure the fixation of the catheter body; the fixing patch can ensure the connection between the catheter body and the patient, and the cooperation of the fixing nut and the fixing ring can ensure that the fixing patch and the catheter body are firmly connected, thereby avoiding misalignment between the catheter body and the fixing patch, and further ensuring the fixation of the catheter body; in addition, due to the end of the catheter body A needleless connector is provided at the end, and when a drainage bag or a water seal bottle needs to be connected, the connection can be made through the needleless connector. The needleless connector can always maintain a sealed state in the catheter body before connecting the drainage bag or the water seal bottle, and can conduct the catheter body and the drainage bag or the water seal bottle after connecting the drainage bag or the water seal bottle, thereby avoiding the risk of air entering the chest cavity and ensuring the safety of drainage. The utility model can ensure a firm connection between the catheter and the fixing patch and between the fixing patch and the patient, avoid displacement of the catheter, and at the same time ensure the airtightness in the catheter, ensure the smooth drainage, and reduce the patient's pain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0015] Figure 1 It is a structural schematic diagram of a chest drainage catheter provided by an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the fixed ring;

[0017] Figure 3 It is a schematic diagram of the structure of the adapter.

[0018] Markings in the figure:

[0019] The catheter body 100 ; the guidewire inlet 101 ; the guidewire outlet 102 ; the cap 103 ; the fixing patch 200 ; the connecting portion 201 ; the fixing portion 202 ; the fixing nut 300 ; the fixing ring 400 ; the opening 401 ; the first ratchet 402 ; the second ratchet 403 ; the needleless connector 500 ; the adapter 600 ; the first connecting port 601 ; the second connecting port 602 . DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. It should be understood that the terms "first", "second", etc. are used in the present utility model to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0022] like Figure 1 to Figure 2 As shown, a preferred embodiment of the utility model provides a chest drainage catheter, which includes a catheter body 100, a fixing patch 200, a fixing nut 300, a fixing ring 400 and a needleless connector 500, wherein the fixing patch 200 is slidably connected to the catheter body 100, the fixing nut 300 is sleeved on the catheter body 100, one end of the fixing patch 200 is threadedly connected to the fixing nut 300, and the other end of the fixing patch 200 can be attached to the skin surface of the patient to fix the catheter body 100, the fixing ring 400 is fixed on the fixing nut 300, an opening 401 is provided on the fixing ring 400, a plurality of first ratchet teeth 402 are provided on the inner side of the opening 401, and a plurality of second ratchet teeth 403 are provided on the outer side of the opening 401, the first ratchet teeth 402 and the second ratchet teeth 403 are meshed and enable the fixing ring 400 to fix the fixing nut 300 on the catheter body 100.

[0023] After the catheter body 100 is put into place, the fixing position is adjusted by sliding the fixing patch 200. After the adjustment is in place, the fixing patch 200 is first attached to the skin, and then the fixing nut 300 is screwed in, so that the fixing nut 300 is threadedly connected to one end of the fixing patch 200, and finally the fixing ring 400 is buckled on the catheter body 100, so as to ensure the fixation of the catheter body 100; the fixing patch 200 can ensure the connection between the catheter body 100 and the patient, and the cooperation of the fixing nut 300 and the fixing ring 400 can ensure that the fixing patch 200 and the catheter body 100 are firmly connected, thereby avoiding misalignment between the catheter body 100 and the fixing patch 200, and further ensuring that the catheter body 100 fixation; in addition, since the end of the catheter body 100 is provided with a needleless connector 500, when it is necessary to connect a drainage bag or a water seal bottle, it can be connected through the needleless connector 500. The needleless connector 500 can always maintain the sealed state in the catheter body 100 before connecting the drainage bag or the water seal bottle, and can conduct the catheter body 100 and the drainage bag or the water seal bottle after connecting the drainage bag or the water seal bottle, thereby avoiding the risk of air entering the chest cavity and ensuring the safety of drainage; the use of the utility model can ensure a firm connection between the catheter and the fixing patch 200 and between the fixing patch 200 and the patient, avoid displacement of the catheter, and at the same time ensure the airtightness in the catheter, ensure the smooth drainage, and reduce the patient's pain.

[0024] Exemplarily, the guide wire inlet 101 is provided at the head end of the catheter body 100, the needleless connector 500 is arranged at the end of the catheter body 100, and the guide wire outlet 102 is also provided at the end of the catheter body 100, and a cap 103 is provided on the guide wire outlet 102. During drainage, when the guide wire is inserted into the body and reaches a suitable position, the head end of the catheter body 100 is inserted into the guide wire, and the catheter body 100 is guided to the correct position through the guide wire, and then the guide wire can be taken out through the guide wire outlet 102, and the cap 103 is covered to maintain the overall sealing of the entire catheter body 100.

[0025] Exemplarily, the fixing patch 200 includes a connecting portion 201 and a plurality of fixing portions 202, one end of the fixing portion 202 is fixedly connected to the connecting portion 201, the plurality of fixing portions 202 are arranged in a fan-shaped interval, and the fixing nut 300 is provided with an internal thread, and the connecting portion 201 cooperates with an external thread. By arranging the plurality of fixing parts 202 in a fan-shaped manner at intervals, the fixing patch 200 can be attached to the patient's skin from multiple angles, thereby ensuring the fixation of the catheter. In specific use, after selecting a suitable position, the fixing patch 200 is attached to the patient's skin surface, and the fixing nut 300 is screwed in to connect the fixing nut 300 to the fixing patch 200, and finally the opening 401 on the fixing ring 400 is buckled, so that the fixing bolt cannot move on the catheter body 100. Thus, the fixing bolt can ensure the connection between the fixing patch 200 and the catheter body 100, and prevent the catheter body 100 from being misplaced and moved when the fixing patch 200 is still fixed. At the same time, the fixing patch 200 can further prevent the movement of the catheter body 100, thereby achieving a double fixing effect on the catheter body 100.

[0026] For example, Figure 3 As shown, the needleless connector 500 is threadedly connected with an adapter 600, one end of the adapter 600 is provided with a first connection port 601 for communicating with the needleless connector 500, and the other end of the adapter 600 is provided with a second connection port 602 for communicating with a drainage bag or a water seal bottle. When the drainage bag and the water seal bottle need to be replaced or connected, the adapter head is directly connected to the needleless connector 500 without using a tube clamp separately. The needleless connector 500 can always maintain the sealed state in the catheter body 100 before connecting the drainage bag or the water seal bottle, and can conduct the catheter body 100 and the drainage bag or the water seal bottle after connecting the drainage bag or the water seal bottle, thereby avoiding the risk of air entering the chest cavity and ensuring the safety of drainage.

[0027] In this embodiment, the needleless connector 500 is a needleless connector 500 used in the prior art, such as Chinese patent application: Publication No.: CN115645675A, a separator membrane needleless infusion connector.

[0028] In this embodiment, the fixing patch 200 is made of medical dressing.

[0029] Exemplarily, in order to facilitate the catheter to enter the body, the first end of the catheter is configured to be conical.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A chest drainage catheter, characterized in that: The invention comprises a catheter body, a fixing patch, a fixing nut, a fixing ring and a needleless connector, wherein the fixing patch is slidably connected to the catheter body, the fixing nut is sleeved on the catheter body, one end of the fixing patch is threadedly connected to the fixing nut, the other end of the fixing patch can be attached to the skin surface of the patient to fix the catheter body, the fixing ring is fixed to the fixing nut, an opening is provided on the fixing ring, a plurality of first ratchet teeth are provided on the inner side of the opening, a plurality of second ratchet teeth are provided on the outer side of the opening, the first ratchet teeth are meshed with the second ratchet teeth and the fixing ring can fix the fixing nut on the catheter body.

2. A chest drainage catheter according to claim 1, characterized in that: The head end of the catheter body is provided with a guide wire inlet, the needleless connector is arranged at the end of the catheter body, the end of the catheter body is also provided with a guide wire outlet, and a cover cap is provided on the guide wire outlet.

3. A chest drainage catheter according to claim 1, characterized in that: The fixing patch comprises a connecting portion and a plurality of fixing portions, one end of the fixing portion is fixedly connected to the connecting portion, and the plurality of fixing portions are arranged at intervals in a fan shape.

4. A chest drainage catheter according to claim 3, characterized in that: The fixing nut is provided with an internal thread, and the connecting portion is matched with an external thread.

5. A chest drainage catheter according to claim 1, characterized in that: The needleless connector is threadedly connected with an adapter, one end of the adapter is provided with a first connection port for communicating with the needleless connector, and the other end of the adapter is provided with a second connection port for communicating with a drainage bag or a water seal bottle.

6. A chest drainage catheter according to claim 1, characterized in that: The material of the fixing patch is medical dressing.

7. A chest drainage catheter according to claim 1, characterized in that: The head end of the conduit is configured to be conical.

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