A conveniently replaceable drainage tube structure

Abstract

The application relates to a convenient replacement drainage tube structure which comprises a drainage tube body and an inner sleeve, one end of the drainage tube body is provided with a drainage head arranged in a diseased part, the other end of the drainage tube body is provided with a connecting assembly, a drainage main cavity is arranged in the drainage tube body, a drainage port is arranged on the drainage head and communicates with the drainage main cavity, the connecting assembly is connected with an external drainage liquid collecting device, the drainage main cavity communicates with the external drainage liquid collecting device through the connecting assembly, the inner sleeve is inlaidly arranged in the drainage main cavity, a first supporting core with elasticity is arranged in the inner sleeve, an installation cavity for inserting the first supporting core is arranged in the inner sleeve, a guide core with elasticity is arranged in the first supporting core, and a guide cavity for inserting the guide core is arranged in the first supporting core. The convenient replacement drainage tube structure can conveniently realize replacement of the drainage tube, is simple to operate, has high replacement efficiency, cannot cause secondary harm and pain to patients, and is favorable for reducing the burden of doctors and patients.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a drainage tube structure convenient to replace. BACKGROUND

[0002] The abdominal cavity surgery usually uses a drainage tube with an outer diameter of 6mm or above, and 15-30% of the liver, gallbladder and pancreas or digestive tract surgeries have a fistula or a blocked drainage tube, which can cause sepsis and even death, and at this time, a double-cannula drainage tube needs to be replaced for negative pressure drainage.

[0003] The traditional replacement of the drainage tube usually needs to be performed on the operating table, and a new incision or a thicker abdominal puncture device is used to assist in replacing the tube, and the above-mentioned methods need a second invasive surgery, and the replacement operation is complex, low in efficiency, and can cause secondary damage and pain to the patient. SUMMARY

[0004] Therefore, it is necessary to provide a drainage tube structure convenient to replace, which can conveniently replace the drainage tube, is simple to operate, high in replacement efficiency, and does not cause secondary damage and pain to the patient, and is beneficial to reduce the burden of doctors and patients.

[0005] The technical scheme is as follows:

[0006] On the one hand, a drainage tube structure convenient to replace is provided, which comprises:

[0007] A drainage tube body, one end of the drainage tube body is provided with a drainage head inserted into a lesion, the other end of the drainage tube body is provided with a connecting assembly, the drainage tube body is provided with a drainage main cavity, the drainage head is provided with a drainage port in communication with the drainage main cavity, the connecting assembly is connected with an external drainage liquid collecting device, and the drainage main cavity is in communication with the external drainage liquid collecting device through the connecting assembly;

[0008] An inner sleeve, the inner sleeve is embedded in the drainage main cavity, the inner sleeve is provided with an elastic first support core, the inner sleeve is provided with a mounting cavity for inserting the first support core, the first support core is provided with an elastic guide core, and the first support core is provided with a guide cavity for inserting the guide core.

[0009] The technical scheme is further described as follows:

[0010] In one embodiment, a second support core is further included, the second support core is embedded in the guide cavity, and the second support core is provided with a lumen for inserting the guide core.

[0011] In one of the embodiments, the second support core comprises a second support tube, which is internally hollow to form the tube cavity, and one end of the second support tube is provided with an extension tube joint.

[0012] In one of the embodiments, a cap is further provided on the inner sleeve and the first support core, respectively, and the cap is arranged at one end of the first support core.

[0013] In one of the embodiments, the guide core is made of metal or polymer material.

[0014] In one of the embodiments, a side flow cavity is further arranged in the drainage tube body, the side flow cavity is arranged side by side with the drainage main cavity, a side flow port is arranged on the drainage head and communicates with the side flow cavity, the side flow port is arranged on one side of the drainage head, and a side cavity extension tube for connecting an external injection liquid device is arranged on one side of the connection assembly.

[0015] In one of the embodiments, the connection assembly comprises a catheter joint, and a catheter seat for fixing the catheter joint is arranged on the catheter joint.

[0016] In one of the embodiments, a main cavity extension tube is arranged on the catheter joint, the main cavity extension tube is connected with the drainage tube body through the catheter joint, and the main cavity extension tube communicates with the drainage main cavity.

[0017] In one of the embodiments, an air hole joint is connected to one end of the main cavity extension tube away from the catheter joint, a first air hole is arranged on the air hole joint, a joint rubber plug is further arranged between the air hole joint and the main cavity extension tube, and a second air hole is arranged on the joint rubber plug corresponding to the position of the first air hole.

[0018] In one of the embodiments, one end of the side cavity extension tube is connected to the catheter joint, and a sealing cap for sealing the side cavity extension tube is arranged on the other end of the side cavity extension tube.

[0019] The beneficial effects of the present application are as follows:

[0020] Compared with the prior art, the convenient replacement drainage tube structure of the application realizes the drainage effect by setting a drainage port on the drainage head arranged on the side of the drainage tube body extending into the affected area, so that the effusion in the affected area flows into the drainage main cavity through the drainage port and is discharged through the other side of the drainage tube body. And the inner sleeve is arranged in the drainage main cavity, when the drainage tube is replaced, the auxiliary suture of the original drainage tube body and other catheter fixing instruments are cut off, the connection between the connecting assembly on the original drainage tube body and the external drainage liquid collecting device is loosened, the first support core is inserted into the installation cavity of the inner sleeve and locked, the guide core is inserted along the guide cavity of the first support core, and the guide core reaches the lesion area. The position of the guide core is maintained, the original drainage tube body is pulled out, at this time the inner sleeve and the first support core are pulled out together with the original drainage tube body, the first support core is placed into the inner sleeve in the new drainage tube body, the drainage tube body with the locked first support core is placed into the original position along the guide core and fixed in position, and the guide core is pulled out. Finally, the first support core is pulled out, and the required drainage liquid collecting device is connected, and the drainage is observed to be unobstructed.

[0021] Among them, the first support core and the guide core with elasticity can be bent according to the bending of the drainage tube body and the inner sleeve, so that in the case that some drainage tube bodies need to be bent to realize drainage, the first support core and the guide core can also be directly inserted from the outside to the lesion area, so as to ensure that the new drainage tube body inserted along the first support core and the guide core can reach the lesion area, and ensure the drainage effect of the replaced drainage tube body. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The drawings illustrate one exemplary embodiment of the present application and, together with the description, serve to explain the principles of the present application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can also be obtained by those skilled in the art without any creative labor.

[0024] Figure 1 It is a structural schematic diagram of a convenient replacement drainage tube structure in an embodiment;

[0025] Figure 2 It is Figure 1 It is an enlarged structural schematic diagram of part A in the embodiment;

[0026] Figure 3 It is a side structural schematic diagram of the drainage head in an embodiment.

[0027] Legend of the drawings:

[0028] 100, drainage tube body; 110, drainage head; 120, connecting assembly; 121, catheter joint; 122, catheter seat; 130, drainage main cavity; 140, drainage port; 150, side flow cavity; 160, side flow port; 170, side cavity extension tube; 171, sealing cap; 172, connecting band; 180, main cavity extension tube; 181, air hole joint; 1811, first air hole; 182, joint rubber plug; 1821, second air hole; 200, inner sleeve; 300, first supporting core; 400, second supporting core; 500, guiding core; 600, extension tube joint; 700, protective cap. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0030] In the description of the present application, it should be noted that the terms "inner", "outer", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", "fourth" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "fixing", "adhering" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] As Figures 1 to 3As shown, in one embodiment, a convenient replacement drainage tube structure is provided, including a drainage tube body 100 and an inner sleeve 200, one end of the drainage tube body 100 is provided with a drainage head 110 arranged to extend into the affected area, the other end of the drainage tube body 100 is provided with a connecting assembly 120, the drainage tube body 100 is provided with a drainage main cavity 130, the drainage head 110 is provided with a drainage port 140 in communication with the drainage main cavity 130, the connecting assembly 120 is connected with an external drainage liquid collecting device, and the drainage main cavity 130 is in communication with the external drainage liquid collecting device through the connecting assembly 120.

[0033] The inner sleeve 200 is embedded in the drainage main cavity 130, the inner sleeve 200 includes a sleeve body, the sleeve body is provided with a first supporting core 300 with elasticity, the sleeve body is provided with a mounting cavity for inserting the first supporting core 300, the first supporting core 300 includes a first supporting tube, the first supporting tube is provided with a guide core 500 with elasticity, and the first supporting tube is provided with a guide cavity for inserting the guide core 500.

[0034] By arranging the drainage port 140 on the drainage head 110 arranged to extend into the affected area, the effusion in the affected area flows into the drainage main cavity 130 through the drainage port 140, and is discharged through the other side of the drainage tube body 100, thereby achieving the drainage effect. The inner sleeve 200 is embedded in the drainage main cavity 130, when the drainage tube is replaced, the auxiliary suture or other catheter fixing instrument of the original drainage tube body 100 is cut off, the connection between the connecting assembly 120 on the original drainage tube body 100 and the external drainage liquid collecting device is loosened, the first supporting core 300 is inserted into the mounting cavity of the inner sleeve 200 and locked, the guide core 500 is inserted along the guide cavity of the first supporting core 300, and the guide core 500 reaches the lesion area. The position of the guide core 500 is maintained, the original drainage tube body 100 is pulled out, at this time, the inner sleeve 200 and the first supporting core 300 are pulled out together with the original drainage tube body 100, the first supporting core 300 is placed into the inner sleeve 200 in the new drainage tube body 100, the drainage tube body 100 with the locked first supporting core 300 is placed into the original position along the guide core 500 and fixed, and the guide core 500 is pulled out. Finally, the first supporting core 300 is pulled out, and the required drainage liquid collecting device is connected, and the drainage is observed to be unobstructed.

[0035] The first supporting core 300 and the guide core 500 with elasticity can be bent according to the bending of the drainage tube body 100 and the inner sleeve 200, so that in some cases where the drainage tube body 100 needs to be bent to achieve drainage, the first supporting core 300 and the guide core 500 can also be directly inserted from the outside to the lesion area, thereby ensuring that the new drainage tube body 100 inserted along the first supporting core 300 and the guide core 500 can reach the lesion area, and ensuring the drainage effect of the replaced drainage tube body 100.

[0036] In one of the embodiments, a second support core 400 is further included, the second support core 400 is embedded in the guide cavity, and the second support core 400 is internally provided with a lumen for inserting the guide core 500. Specifically, the second support core 400 includes a second support tube, the second support tube is internally hollow to form the lumen, and the second support tube is provided with an extension tube joint 600 at one end. Through the second support core 400, the overall support strength is further improved, the drainage tube body 100 is more smoothly taken out and repositioned, and the situation of jamming during the replacement of the drainage tube body 100 is reduced.

[0037] In one of the embodiments, a cap 700 is further included, the cap 700 is arranged on the inner sleeve tube 200 and the first support core 300, respectively, and the cap 700 is arranged at one end of the first support core 300. Through the cap 700, medical staff can conveniently perform relevant insertion and pulling-out operations, which is beneficial to prevent the drainage liquid from polluting the hands of medical staff and the bedding of patients, and effectively maintain the cleanliness of the patient area.

[0038] In one of the embodiments, the guide core 500 is made of metal or high polymer material. Of course, in the present application, it is not limited to metal or high polymer material, as long as the guide core 500 can be easily processed, has high strength, high toughness, good fatigue resistance, and the like, is beneficial to repeated use, and the surface can be processed to be relatively smooth, has strong corrosion resistance, avoids damage caused by the contact between the guide core 500 and the patient, and the like. Such materials can be used to manufacture the guide core 500, and the use of such materials belongs to the protection range of the present application.

[0039] In one of the embodiments, the drainage tube body 100 is further provided with a side flow cavity 150, the side flow cavity 150 is arranged side by side with the drainage main cavity 130, the drainage head 110 is provided with a side flow port 160 communicating with the side flow cavity 150, the side flow port 160 is arranged on one side surface of the drainage head 110, and the side flow cavity 150 is provided with a side cavity extension tube 170 for connecting an external injection liquid device on one side of the connecting assembly 120. The side flow port 160 is arranged on the side surface of the drainage head 110, which can make the limited effusion in the lesion area flow into the drainage main cavity 130 from the drainage port 140 on the front surface of the drainage head 110 and be discharged through the drainage tube body 100 as much as possible, and can effectively avoid the effusion in the lesion area directly flowing into the side flow cavity 150 through the side flow port 160 and being discharged through the side cavity extension tube 170.

[0040] Specifically, the side cavity extension tube 170 can directly inject medicine or flushing liquid into the lesion area, the medicine and the flushing liquid flow out from the side surface of the drainage head 110 through the side flow port 160 and flow to the lesion area, and then the excess liquid can flow into the drainage main cavity 130 through the drainage port 140 arranged on the drainage head 110 towards the lesion area and be drained out of the patient's body, thereby avoiding the effusion in the lesion area.

[0041] In one embodiment, the connecting assembly 120 comprises a catheter joint 121, and a catheter seat 122 is arranged on the catheter joint 121 for fixing the catheter joint 121. At the same time, the fixation of the drainage tube body 100 is also achieved through the catheter joint 121 and the catheter seat 122, so that the overall device remains fixed during the drainage process, and the smoothness of the drainage is guaranteed.

[0042] In one embodiment, the catheter joint 121 is provided with a main cavity extension tube 180, which is connected with the drainage tube body 100 through the catheter joint 121. One end of the main cavity extension tube 180 is in communication with the drainage main cavity 130, and the other end of the main cavity extension tube 180 is connected with an external drainage liquid collecting device, so as to guide the drainage liquid in the drainage main cavity 130 into the drainage liquid collecting device.

[0043] In one embodiment, the end of the main cavity extension tube 180 away from the catheter joint 121 is connected with an air hole joint 181, and the air hole joint 181 is provided with a first air hole 1811. A joint rubber plug 182 is further arranged between the air hole joint 181 and the main cavity extension tube 180, and the joint rubber plug 182 is provided with a second air hole 1821 corresponding to the position of the first air hole 1811. By arranging the air hole joint 181 with the first air hole 1811 on the catheter joint 121, the air pressure in the main cavity extension tube 180 is kept stable, and the smoothness of the effusion drainage in the lesion area is guaranteed. Further, by arranging the joint rubber plug 182, the connection airtightness of the air hole joint 181 and the main cavity extension tube 180 is improved, and the liquid leakage is prevented. At the same time, the second air hole 1821 is arranged on the joint rubber plug 182, so as to avoid the joint rubber plug 182 from plugging the first air hole 1811 and affecting the air pressure in the main cavity extension tube 180.

[0044] In one embodiment, one end of the side cavity extension tube 170 is connected to the catheter joint 121, and the other end of the side cavity extension tube 170 is provided with a sealing cap 171 for sealing the side cavity extension tube 170. When liquid injection is not needed, the side cavity extension tube 170 is sealed by the sealing cap 171, so as to prevent the effusion in the lesion area from flowing out along the side cavity extension tube 170. Further, the sealing cap 171 is connected with the side cavity extension tube 170 through a connecting belt 172, one end of the connecting belt 172 is fixedly connected to the side cavity extension tube 170, and the other end of the connecting belt 172 is fixedly connected to the sealing cap 171, so as to facilitate the removal and covering of the sealing cap 171. In addition, the side cavity extension tube 170 is provided with an extension tube joint 600, which further extends the length of the side cavity extension tube 170, and facilitates the connection of the side cavity extension tube 170 with an external liquid injection device under some specific conditions.

[0045] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A drain structure for easy replacement, characterized in that, The drainage tube body (100) is provided with a drainage head (110) at one end, a connecting assembly (120) at the other end, a drainage main cavity (130) in the drainage tube body (100), a drainage port (140) on the drainage head (110) in communication with the drainage main cavity (130), and the connecting assembly (120) is connected with an external drainage liquid collecting device, and the drainage main cavity (130) is in communication with the external drainage liquid collecting device through the connecting assembly (120). The inner sleeve (200) is embedded in the drainage main cavity (130), and the inner sleeve (200) is provided with an elastic first supporting core (300), an installation cavity for inserting the first supporting core (300), an elastic guide core (500) in the first supporting core (300), and a guide cavity for inserting the guide core (500). The second supporting core (400) is embedded in the guide cavity, and the second supporting core (400) is provided with a lumen for inserting the guide core (500). The second supporting core (400) includes a second supporting tube, which is hollow inside to form the lumen, and an extension tube joint (600) is arranged at one end of the second supporting tube. A cap (700) is arranged on the inner sleeve (200) and the first supporting core (300), respectively, and the cap (700) is arranged at one end of the first supporting core (300).

2. A conveniently replaceable drainage tube structure according to claim 1, characterized in that, The guide core (500) is made of metal or high polymer material.

3. A conveniently replaceable drainage tube structure according to claim 1, wherein The drainage tube body (100) is further provided with a side flow cavity (150), which is arranged side by side with the drainage main cavity (130), a side flow port (160) on the drainage head (110) in communication with the side flow cavity (150), the side flow port (160) being arranged on one side of the drainage head (110), and a side cavity extension tube (170) for connecting an external injection liquid device being arranged on one side of the connecting assembly (120).

4. A conveniently replaceable drainage tube structure according to claim 1, wherein The connecting assembly (120) includes a catheter joint (121), and a catheter seat (122) is arranged on the catheter joint (121) for fixing the catheter joint (121).

5. A conveniently replaceable drainage tube construction according to claim 4, characterised in that, A main cavity extension tube (180) is arranged on the catheter joint (121), the main cavity extension tube (180) is connected with the drainage tube body (100) through the catheter joint (121), and the main cavity extension tube (180) is in communication with the drainage main cavity (130).

6. A conveniently replaceable drainage tube construction according to claim 5, characterised in that, ​ 7. A conveniently replaceable drainage tube construction according to claim 6, characterised in that The end of the main lumen extension tube (180) away from the conduit connector (121) is connected to an air vent connector (181). The air vent connector (181) is provided with a first air vent (1811). A connector plug (182) is also provided between the air vent connector (181) and the main lumen extension tube (180). A second air vent (1821) is provided on the connector plug (182) at a position corresponding to the first air vent (1811).

8. A conveniently replaceable drainage tube construction according to claim 7, characterised in that, One end of the side cavity extension tube (170) is connected to the catheter connector (121), and the other end of the side cavity extension tube (170) is provided with a sealing cap (171) for sealing the side cavity extension tube (170).

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