Drainage return device

Abstract

The application provides a drainage and return device, and relates to the technical field of medical devices.The drainage and return device comprises a drainage tube, a primary filter, a secondary filter, a filtering return bag and a return tube.The drainage tube is used for inputting bile, the liquid inlet of the primary filter is connected with the drainage tube, the liquid inlet of the secondary filter is connected with the liquid outlet of the primary filter, the filtering return bag comprises a bag body and a third filter screen, the liquid inlet of the bag body is connected with the liquid outlet of the secondary filter, the third filter screen is arranged in the bag body and located between the liquid inlet and the liquid outlet of the bag body, and the return tube is connected with the liquid outlet of the bag body and used for outputting bile.When the drainage and return device is used, the bile is filtered by three levels, has higher purity, is filtered in a closed mode, and the risk that the bile is polluted by the external environment is reduced, so that the patient can be more helped to recover.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a drainage and reinfusion device. Background Technology

[0002] The information disclosed in this background section is intended only to enhance the understanding of the general background of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art.

[0003] In the clinical treatment of obstructive jaundice, it is necessary to drain and reinfuse bile. This involves draining bile from the obstruction site to alleviate the patient's jaundice symptoms, and then reinfusing the drained bile back to the patient through oral or enteral feeding tubes after processing, in order to reduce bile waste and the occurrence of complications.

[0004] Currently, bile reinfusion involves first collecting the drained bile from the drainage bag into a container, then filtering it using sterile gauze in an open system, and finally reinfusing the filtered bile into the patient via an infusion set. This method suffers from poor filtration, making it difficult to guarantee the purity of the bile, and it is also susceptible to contamination by the external environment. This increases the risk of gastrointestinal adverse reactions such as abdominal pain and diarrhea, which is detrimental to the patient's recovery. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a drainage and reinfusion device, which aims to solve the technical problems of current bile drainage and reinfusion, which have poor filtration effect and are easily contaminated by the external environment, thus hindering patient recovery.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] Embodiments of this application provide a drainage and reinfusion device, comprising:

[0008] A drainage tube used to infuse bile;

[0009] The primary filter has its inlet connected to the drainage tube.

[0010] A secondary filter, the inlet of which is connected to the outlet of the primary filter;

[0011] A filter return bag includes a bag body and a third filter screen. The inlet of the bag body is connected to the outlet of the secondary filter. The third filter screen is disposed inside the bag body and located between the inlet and outlet of the bag body.

[0012] The return pipe is connected to the outlet of the bag and is used to output bile.

[0013] In one embodiment, the primary filter includes a first dropper and a first filter screen, the first filter screen being disposed inside the first dropper and located between the inlet and outlet of the first dropper; the secondary filter includes a second dropper and a second filter screen, the second filter screen being disposed inside the second dropper and located between the inlet and outlet of the second dropper; the inlet of the first dropper is connected to the drainage tube; the outlet of the first dropper is connected to the inlet of the second dropper; and the outlet of the second dropper is connected to the inlet of the bag.

[0014] In one embodiment, the pore size of the second filter screen is smaller than that of the first filter screen, and the pore size of the third filter screen is smaller than that of the second filter screen.

[0015] In one embodiment, the drainage and return device further includes a drain valve and a flow rate regulator arranged at intervals. The drain valve is disposed on the return pipe and is used to control the opening and closing of the return pipe. The flow rate regulator is disposed on the return pipe, and the drain valve is located between the flow rate regulator and the filter return bag.

[0016] In one embodiment, the drainage tube includes a first tube body and a first pagoda connector, the first tube body being connected between the first pagoda connector and the primary filter, and the return tube includes a second tube body and a second pagoda connector, the second tube body being connected between the second pagoda connector and the filter return bag.

[0017] In one embodiment, the drainage and reinfusion device further includes a first cap and a second cap, wherein the first cap is detachably connected to the first pagoda connector and is used to cover the interface of the first pagoda connector, and the second cap is detachably connected to the second pagoda connector and is used to cover the interface of the second pagoda connector.

[0018] In one embodiment, the drainage and reinfusion device further includes a first connecting pipe and a second connecting pipe, wherein the first connecting pipe is connected between the primary filter and the secondary filter, and the second connecting pipe is connected between the secondary filter and the bag body.

[0019] In one embodiment, the angle formed by the centerline of the third filter and the bag body is α, satisfying: 0° < α < 90°.

[0020] In one embodiment, the outer periphery of the bag is provided with multiple scale lines.

[0021] In one embodiment, the flow return device further includes a flow meter disposed at the end of the return pipe away from the filter return bag, for detecting the output flow of the return pipe.

[0022] The beneficial effects of this application are as follows:

[0023] When using the drainage and reinfusion device provided in this application, bile is drained through a drainage tube, filtered through a primary filter to remove large particulate impurities, then through a secondary filter to remove small particulate impurities, and finally through a filtration and reinfusion bag for final filtration and collection. The filtered and collected bile is then reinfused back to the patient through the reinfusion tube. In this process, the bile undergoes three stages of filtration, resulting in higher purity. Furthermore, the closed-loop filtration reduces the risk of bile contamination from the external environment, thus better aiding patient recovery.

[0024] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the structure of the drainage and reinfusion device in one embodiment of this application is shown. Figure 1 ;

[0027] Figure 2 A schematic diagram of the structure of the drainage and reinfusion device in one embodiment of this application is shown. Figure 2 .

[0028] Explanation of key component symbols:

[0029] 100 - Drainage and return device; 110 - Drainage pipe; 111 - First pipe body; 112 - First pagoda connector; 120 - Primary filter; 121 - First dropper; 122 - First filter screen; 130 - Secondary filter; 131 - Second dropper; 132 - Second filter screen; 140 - Filter return bag; 141 - Bag body; 142 - Third filter screen; 143 - Scale line; 150 - Return pipe; 151 - Second pipe body; 152 - Second pagoda connector; 161 - Drain valve; 162 - Flow rate regulator; 163 - First pipe cap; 164 - Second pipe cap; 165 - First connecting pipe; 166 - Second connecting pipe; 167 - Flow meter. Detailed Implementation

[0030] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0031] In the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0032] Furthermore, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this application, the terms "first," "second," etc., are used to distinguish different objects and should not be construed as indicating or implying a specific order or hierarchy, or implicitly specifying the number of technical features indicated. Therefore, a feature marked "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0034] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In the description of this application, the term "and / or" indicates that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0036] In the clinical treatment of obstructive jaundice, bile drainage and reinfusion are required. This involves draining bile from the obstruction site to alleviate the patient's jaundice symptoms, and then processing the drained bile before reinfusing it into the patient through oral administration or enteral feeding tubes to reduce bile waste and complications (such as electrolyte and acid-base imbalances caused by excessive bile loss, impaired intestinal mucosal barrier function, and inadequate digestion and absorption of enteral nutrition).

[0037] Currently, bile reinfusion involves first collecting the drained bile from the drainage bag into a container, then filtering it using sterile gauze in an open system. The filtered bile is then reinfused into the patient via an infusion set. This method suffers from poor filtration, making it difficult to guarantee bile purity and increasing the risk of contamination from the external environment. This increases the risk of gastrointestinal adverse reactions such as abdominal pain and diarrhea, hindering patient recovery. Furthermore, the procedure is cumbersome, resulting in low efficiency for both drainage and reinfusion.

[0038] To address the aforementioned technical problems, embodiments of this application provide a drainage and reinfusion device, relating to the field of medical device technology, primarily used for the drainage and reinfusion of bile to aid in the recovery of patients with obstructive jaundice.

[0039] like Figure 1 and Figure 2 As shown, the drainage and reinfusion device 100 provided in this embodiment includes: a drainage tube 110, a primary filter 120, a secondary filter 130, a filter reinfusion bag 140, and a reinfusion tube 150.

[0040] The system includes a drainage tube 110 for inputting bile, a primary filter 120 whose inlet is connected to the drainage tube 110, a secondary filter 130 whose inlet is connected to the primary filter 120 whose outlet is connected to the primary filter 120, a filter return bag 140 including a bag body 141 and a third filter 142, a bag body 141 whose inlet is connected to the secondary filter 130 whose outlet is located inside the bag body 141 between the inlet and outlet, and a return tube 150 connected to the outlet of the bag body 141 for outputting bile.

[0041] For example, the drainage tube 110 can be connected to a T-tube or a PTCD catheter (a catheter placed percutaneously through the liver in the bile duct under imaging technology) to achieve bile drainage. The reinfusion tube 150 can be connected to an enteral feeding tube or placed in the patient's mouth to achieve bile reinfusion.

[0042] It is understood that when using the drainage and reinfusion device 100 provided in this embodiment, bile is drained through the drainage tube 110, filtered out by the primary filter 120 to remove large particulate impurities, then filtered out by the secondary filter 130 to remove small particulate impurities, and then finally filtered and collected by the reinfusion bag 140. Finally, the filtered and collected bile is reinfused back to the patient through the reinfusion tube 150.

[0043] In this process, the bile undergoes three stages of filtration, resulting in higher purity. The closed-loop filtration reduces the risk of bile contamination from the external environment, thus better aiding patient recovery. Furthermore, the drainage and reinfusion device 100 is convenient and quick to use, improving the efficiency of bile drainage and reinfusion.

[0044] like Figure 1 and Figure 2 As shown, in one embodiment, the primary filter 120 includes a first dropper 121 and a first filter screen 122. The first filter screen 122 is disposed inside the first dropper 121 and located between the inlet and outlet of the first dropper 121. The secondary filter 130 includes a second dropper 131 and a second filter screen 132. The second filter screen 132 is disposed inside the second dropper 131 and located between the inlet and outlet of the second dropper 131. The inlet of the first dropper 121 is connected to the drainage tube 110, the outlet of the first dropper 121 is connected to the inlet of the second dropper 131, and the outlet of the second dropper 131 is connected to the inlet of the bag body 141.

[0045] Understandably, bile undergoes initial filtration when passing through the first filter screen 122, secondary filtration when passing through the second filter screen 132, and final filtration when passing through the third filter screen 142. Since the first filter screen 122 is located inside the first dropper 121, the second filter screen 132 is located inside the second dropper 131, and the third filter screen 142 is located inside the bag body 141, this achieves closed filtration, reducing the possibility of bile coming into contact with the external environment.

[0046] Furthermore, the pore size of the second filter screen 132 is smaller than that of the first filter screen 122, and the pore size of the third filter screen 142 is smaller than that of the second filter screen 132. This enables three-stage progressive filtration of bile: first, large particles are filtered out by the first filter screen 122; then, small particles are filtered out by the second filter screen 132; and finally, the bile is further purified by the third filter screen 142, resulting in a higher purity of bile.

[0047] Of course, in the above embodiments, the first filter screen 122 and / or the second filter screen 132 can be replaced with a porous filter element, sterile gauze, etc. Porous filter elements and sterile gauze can also achieve the effect of filtering bile. Here, no specific restrictions are made on the type of primary filter 120 and secondary filter 130.

[0048] like Figure 1 As shown, in one embodiment, the drainage and return device 100 further includes a drain valve 161 and a flow rate regulator 162 arranged at intervals. The drain valve 161 is disposed on the return pipe 150 and is used to control the opening and closing of the return pipe 150. The flow rate regulator 162 is disposed on the return pipe 150, and the drain valve 161 is located between the flow rate regulator 162 and the filter return bag 140.

[0049] Understandably, the drain valve 161 facilitates the control of the opening and closing of the return tube 150, reducing the risk of bile leakage in non-return situations; the flow rate regulator 162 facilitates the control of the bile output rate from the return tube 150, so as to meet the bile return rate needs of different patients.

[0050] like Figure 1 and Figure 2 As shown, in one embodiment, the drainage tube 110 includes a first tube body 111 and a first pagoda connector 112. The first tube body 111 is connected between the first pagoda connector 112 and the primary filter 120. The return tube 150 includes a second tube body 151 and a second pagoda connector 152. The second tube body 151 is connected between the second pagoda connector 152 and the filter return bag 140.

[0051] Understandably, the textured outer surface of the first pagoda connector 112 enhances the seal when the drainage tube 110 is connected to the T-tube or PTCD catheter, reducing the risk of bile leakage during drainage. Similarly, the textured outer surface of the second pagoda connector 152 also enhances the seal when the reinfusion tube 150 is connected to the enteral feeding tube, further reducing the risk of bile leakage during reinfusion.

[0052] like Figure 2 As shown, the drainage and return device 100 further includes a first cap 163 and a second cap 164. The first cap 163 is detachably connected to the first pagoda connector 112 and is used to cover the interface of the first pagoda connector 112. The second cap 164 is detachably connected to the second pagoda connector 152 and is used to cover the interface of the second pagoda connector 152.

[0053] Understandably, when the drainage and reinfusion device 100 is not in use, sealing the interface of the first pagoda connector 112 with the first cap 163 and the interface of the second pagoda connector 152 with the second cap 164 can reduce the risk of contamination of the first and second pagoda connectors 112 by the external environment. When using the drainage and reinfusion device 100, removing the first cap 163 and the second cap 164 allows for normal bile drainage and reinfusion.

[0054] like Figure 1 As shown, in one embodiment, the drainage and reinfusion device 100 further includes a first connecting pipe 165 and a second connecting pipe 166. The first connecting pipe 165 is connected between the primary filter 120 and the secondary filter 130 to achieve an indirect connection between the outlet of the primary filter 120 and the inlet of the secondary filter 130. The second connecting pipe 166 is connected between the secondary filter 130 and the bag body 141 to achieve an indirect connection between the outlet of the secondary filter 130 and the inlet of the bag body 141.

[0055] It should be noted that when the primary filter 120 includes a first dropper 121 and a first filter screen 122, and the secondary filter 130 includes a second dropper 131 and a second filter screen 132, the first connecting pipe 165 is connected between the first dropper 121 and the second dropper 131, and the second connecting pipe 166 is connected between the second dropper 131 and the bag body 141.

[0056] Of course, in the above embodiments, the outlet of the primary filter 120 can be directly connected to the inlet of the secondary filter 130 and / or the outlet of the secondary filter 130 can be directly connected to the inlet of the bag 141. The connection method is not limited to indirect or direct connection.

[0057] like Figure 2 As shown, in one embodiment, the included angle between the center lines of the third filter 142 and the bag body 141 is α, which satisfies: 0° < α < 90°.

[0058] Understandably, by controlling the angle α formed by the center lines of the third filter screen 142 and the bag body 141 within the range of 0° to 90° (excluding 0° and 90°), the third filter screen 142 is tilted relative to the bag body 141. This allows for better dispersion of bile flow pressure, ensuring that bile is evenly distributed across the entire third filter screen 142, thereby improving filtration effect and efficiency. It also effectively disperses impurities in the bile, reducing the possibility of local impurity accumulation and thus lowering the risk of clogging. Furthermore, it reduces the impact force of bile flow on the third filter screen 142, extending its service life.

[0059] It should be noted that the first filter screen 122 and / or the second filter screen 132 can also be arranged in the above-mentioned inclined manner to achieve the above technical effects, which will not be elaborated here.

[0060] like Figure 2 As shown, in one embodiment, the outer periphery of the bag 141 is provided with multiple scale lines 143, which makes it easy for medical personnel to read the approximate volume of bile collected in the bag 141.

[0061] like Figure 1 As shown, in one embodiment, the drainage reinfusion device 100 further includes a flow meter 167, which is disposed at the end of the reinfusion tube 150 away from the filter reinfusion bag 140, for detecting the output flow of the reinfusion tube 150 to facilitate postoperative tracking, thereby facilitating more comprehensive and effective treatment for the patient.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A drainage return device, characterized in that, include: A drainage tube used to infuse bile; The primary filter has its inlet connected to the drainage tube. A secondary filter, the inlet of which is connected to the outlet of the primary filter; A filter return bag includes a bag body and a third filter screen. The inlet of the bag body is connected to the outlet of the secondary filter. The third filter screen is disposed inside the bag body and located between the inlet and outlet of the bag body. The return pipe is connected to the outlet of the bag and is used to output bile.

2. The drain return device of claim 1, wherein, The primary filter includes a first dropper and a first filter screen. The first filter screen is disposed inside the first dropper and located between the inlet and outlet of the first dropper. The secondary filter includes a second dropper and a second filter screen. The second filter screen is disposed inside the second dropper and located between the inlet and outlet of the second dropper. The inlet of the first dropper is connected to the drainage tube, the outlet of the first dropper is connected to the inlet of the second dropper, and the outlet of the second dropper is connected to the inlet of the bag.

3. The drain return device of claim 2, wherein, The pore size of the second filter screen is smaller than that of the first filter screen, and the pore size of the third filter screen is smaller than that of the second filter screen.

4. The drainage and reinfusion device according to claim 1, characterized in that, The drainage and return device also includes a drain valve and a flow rate regulator arranged at intervals. The drain valve is located on the return pipe and is used to control the opening and closing of the return pipe. The flow rate regulator is located on the return pipe, and the drain valve is located between the flow rate regulator and the filter return bag.

5. The drainage and reinfusion device according to claim 1, characterized in that, The drainage tube includes a first tube body and a first pagoda connector. The first tube body is connected between the first pagoda connector and the primary filter. The return tube includes a second tube body and a second pagoda connector. The second tube body is connected between the second pagoda connector and the filter return bag.

6. The drainage and reinfusion device according to claim 5, characterized in that, The drainage and return device also includes a first cap and a second cap. The first cap is detachably connected to the first pagoda connector and is used to cover the interface of the first pagoda connector. The second cap is detachably connected to the second pagoda connector and is used to cover the interface of the second pagoda connector.

7. The drainage and reinfusion device according to claim 1, characterized in that, The drainage and return device further includes a first connecting pipe and a second connecting pipe, wherein the first connecting pipe is connected between the primary filter and the secondary filter, and the second connecting pipe is connected between the secondary filter and the bag body.

8. The drainage and return device according to any one of claims 1 to 7, characterized in that, The angle between the centerline of the third filter and the centerline of the bag is α, which satisfies: 0° < α < 90°.

9. The drainage and return device according to any one of claims 1 to 7, characterized in that, The outer periphery of the bag is provided with multiple scale lines.

10. The drainage and reinfusion device according to any one of claims 1 to 7, characterized in that, The flow return device also includes a flow meter, which is located at the end of the return pipe away from the filter return bag, and is used to detect the output flow of the return pipe.

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