Filtering and feedback device for digestive juice

Abstract

The utility model discloses a digestive juice filtering and feedback device, which relates to the technical field of medical equipment and comprises a collecting barrel, a filtering device and a feedback device which are sequentially arranged. A hard partition plate with a plurality of circulating holes is fixedly arranged at the lower opening of the collecting barrel; the filtering device comprises a primary filter and a filtering net group; the primary filter comprises a straight pipe and a conical pipe which are fixedly connected in sequence, the straight pipe penetrates through the upper opening of the collecting barrel in a sliding manner, and the conical pipe is located in the collecting barrel; a primary filter plate is arranged at the large-opening end of the conical pipe; the filter screen group comprises at least one first filter screen; the first filter screen is connected with the primary filter plate and the hard partition plate through flexible connecting ropes; the feedback device is provided with a feedback cavity and a discharge pipe; the feedback cavity is communicated with each circulating hole in the hard partition plate; and a valve for controlling opening and closing is arranged on the discharge pipe. The digestive juice is filtered and returned more simply and conveniently, the pollution of the digestive juice is reduced, the workload of nurses is reduced, and the nursing work efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a filtering and reinfusion device for digestive fluid. Background Art

[0002] Gastrointestinal fistulas, abdominal surgeries, and gastroparesis often require patients to undergo gastrointestinal drainage, T-tube drainage, and gastrointestinal decompression procedures, which can result in the loss of significant amounts of digestive fluid. Digestive fluid is rich in digestive enzymes, and reinfusion of digestive fluid can restore its circulation within the gastrointestinal tract, maintaining its relative continuity and integrity, promoting nutrient absorption, and reducing the loss of digestive enzymes, water and electrolyte imbalances, and the occurrence of complications. Therefore, in clinical practice, medical staff will reinfuse digestive fluid into the patient's digestive tract.

[0003] Traditional digestive fluid filtration involves pouring collected digestive fluid from a drainage bag or negative pressure drain, manually filtering out residue and mucus with gauze or other materials, collecting the fluid in a separate container, and then pouring it into a standard infusion bag for reinfusion. This process is not only cumbersome and increases the workload of nurses, but also easily contaminated during the filtration process, making sterile operation impossible to ensure, and often resulting in waste of digestive fluid, which in turn affects treatment efficacy. Utility Model Content

[0004] The purpose of the utility model is to provide a digestive fluid filtering and reinfusion device to solve the problems existing in the above-mentioned prior art, make the filtering and reinfusion of digestive fluid simpler and more convenient, reduce digestive fluid pollution, reduce the workload of nurses, and improve the efficiency and quality of nursing work.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The utility model provides a filtering and recycling device for digestive fluid, comprising a collecting barrel, a filtering device and a recycling device; the collecting barrel has a housing cavity, an upper opening and a lower opening connected to the housing cavity; a hard partition plate is fixedly provided at the lower opening, and a plurality of through-flow holes are provided on the hard partition plate; the filtering device comprises a primary filter and a filter mesh group; the primary filter comprises a straight tube and a tapered tube, the straight tube is slidably inserted into the upper opening, and the tapered tube is located in the housing cavity; the end opening of the straight tube located outside the housing cavity is used to receive the collected digestive fluid; the end opening of the straight tube located in the housing cavity is connected to and communicated with the small end of the tapered tube; the large end of the tapered tube is provided with a primary filter plate, and the primary filter plate is opened It is provided with a plurality of primary filter holes passing through; the filter screen group includes at least one first filter screen; the first filter screen is located in the accommodating cavity between the primary filter plate and the hard partition plate; the first filter screen and the primary filter plate, as well as the first filter screen and the hard partition plate are connected by at least two flexible connecting ropes; the primary filter can move in the direction close to the first filter screen in the accommodating cavity based on gravity and press on the first filter screen; the return device has a return cavity and a discharge pipe; the return device is fixedly arranged under the hard partition plate, and the return cavity is connected to each of the flow holes on the hard partition plate; the discharge pipe is connected to the return cavity; and a valve for controlling opening and closing is provided on the discharge pipe.

[0007] Preferably, the number of the first filter screens is three, and the first filter screens are arranged in parallel along the axial direction of the accommodating cavity; in the flow direction of the digestive fluid, the mesh aperture of each first filter screen tends to gradually shrink; and the mesh aperture of the first filter screen close to the hard partition plate is smaller than the aperture of the flow hole.

[0008] Preferably, outer edges of the hard partition plate and each of the first filter screens are in contact with inner wall edges of the accommodating cavity.

[0009] Preferably, the reinfusion device is a flexible reinfusion bag, the upper opening edge of the flexible reinfusion bag is sealed and fixedly connected to the lower edge of the collecting bucket, and the internal cavity of the flexible reinfusion bag forms the reinfusion cavity.

[0010] Preferably, the reinfusion device has a transparent side wall, and scale lines are provided on the side wall.

[0011] Preferably, a fixing sleeve is provided on the outer side of a section of the straight tube located outside the accommodating cavity; a sealing plug is sealed at the opening of one end of the straight tube located outside the accommodating cavity, and the outer diameter of the sealing plug is larger than the outer diameter of the straight tube; the inner diameter of the end of the fixing sleeve close to the sealing plug is smaller than the outer diameter of the sealing plug; and the outer diameter of the end of the fixing sleeve close to the upper opening is larger than the outer diameter of the upper opening.

[0012] Preferably, a Moffitt dropper is provided on the discharge pipe.

[0013] Preferably, a flow regulator is provided on the discharge pipe.

[0014] Preferably, the end of the discharge pipe is configured as a pagoda joint.

[0015] Preferably, an opening and closing opening is provided on the side wall of the fixing sleeve, and the fixing sleeve can be mounted on the straight tube through the opening and closing opening. A first locking member and a second locking member are fixedly provided on the side walls of the fixing sleeve on both sides of the opening and closing opening, respectively, and the first locking member and the second locking member can lock each other to keep the opening and closing opening in a closed state.

[0016] Compared with the prior art, the utility model has achieved the following technical effects:

[0017] The digestive fluid filtering and reinfusion device provided by the utility model is used to connect the drainage bag and the liquid outlet of the negative pressure suction device through an opening at one end of the straight tube. That is, it serves as the digestive fluid inlet. The digestive fluid flows downward by itself under the action of gravity, passes through the primary filter plate, the first filter screen and the hard partition plate in sequence, and then flows into the reinfusion device. The discharge tube of the reinfusion device is connected to the gastric tube or the gastrointestinal tube, so that the filtered digestive fluid is reinfused into the patient's gastrointestinal tract; when the digestive fluid has flowed out, the primary filter can fall on the first filter screen based on gravity, realizing the squeezing effect on the first filter screen, so that the digestive fluid remaining on the filter screen can fully flow into the reinfusion device, reducing the waste of digestive fluid and improving the utilization rate of digestive fluid filtration; the whole process makes the filtration and reinfusion of digestive fluid simpler and more convenient; and reduces the direct contact between digestive fluid and human work, reducing the pollution of digestive fluid; reduces the workload of nurses, and improves the efficiency and quality of nursing work.

[0018] Furthermore, three first filter screens are used, which can achieve sufficient filtration of the digestive fluid; and the mesh aperture of each first filter screen tends to gradually decrease, which can ensure the filtration of impurities of different sizes in the digestive fluid, ensure the filtration effect of the digestive fluid and smooth filtration, and reduce the occurrence of blockage during the filtration process.

[0019] Furthermore, the outer edges of the hard partition plate and each first filter screen are in contact with the inner wall edge of the accommodating cavity, which can ensure that the digestive fluid is fully filtered through each layer, avoid leakage and enter the next link without being filtered, and ensure the filtering effect.

[0020] Furthermore, the reinfusion device adopts a flexible reinfusion bag, which is similar to an infusion bag and is easy to manufacture and use.

[0021] Furthermore, the transfusion device is provided with a transparent side wall, and the scale lines provided thereon can facilitate medical staff to observe and know the filtration volume of the digestive fluid, providing a basis for medical work.

[0022] Furthermore, the setting of the fixed sleeve can protect the isolation effect between the straight pipe section outside the accommodating cavity and the outside world, reduce the contamination of the straight pipe section outside the accommodating cavity by the outside world, and improve the sterile environment effect; and the set fixed sleeve can ensure that the primary filter can maintain a fixed relative position with the collection barrel, thereby ensuring the normal flow of digestive fluid in the primary filter and the filter mesh group. After the digestive fluid has flowed out, when the primary filter needs to squeeze the filter mesh group, it can be achieved by removing the fixed sleeve.

[0023] Furthermore, the setting of the Moffitt dropper can conveniently display the dripping rate of the filtered digestive fluid and facilitate the exhaust operation.

[0024] Furthermore, the flow regulator can conveniently control the flow of the returned digestive fluid.

[0025] Furthermore, the pagoda connector provided at the end of the discharge tube facilitates its connection with the end of the gastric tube or the gastrointestinal tube, thereby improving the firmness of the connection.

[0026] Furthermore, the fixing sleeve is provided with an opening and closing mouth, and the closing or opening state of the opening and closing mouth is realized by a first locking member and a second locking member. Its structure is simple and the operation is convenient. When in use, the straight pipe can be positioned in the fixing sleeve through the opening and closing mouth only from the side of the straight pipe. The installation and disassembly are simple and convenient, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the overall structure of the digestive fluid filtering and recycling device provided by the present invention;

[0029] Figure 2This is a schematic structural diagram of a fixed sleeve in the digestive fluid filtering and re-infusion device provided by the present invention;

[0030] Figure 3 This is a schematic structural diagram of the primary filter plate in the digestive fluid filtering and recycling device provided by the present invention;

[0031] Figure 4 This is a schematic diagram of the connection between each first filter screen and the flexible connecting rope in the digestive fluid filtering and recycling device provided by the utility model.

[0032] In the picture:

[0033] 100-Digestive fluid filtering and re-infusion device;

[0034] 10-collection bucket; 11-upper opening; 12-accommodating cavity; 13-hard partition board; 14-sealing plug; 15-hanging rope;

[0035] 20-primary filter; 21-straight tube; 22-conical tube; 23-primary filter plate;

[0036] 30-filter group; 31-first filter; 32-flexible connecting rope;

[0037] 40 - return tube; 41 - discharge tube; 42 - valve; 43 - scale mark; 44 - Moffitt's dropper; 45 - flow regulator; 46 - pagoda connector;

[0038] 50 -fixing sleeve; 51 -opening and closing mouth; 52 -first locking member; 53 -second locking member. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] The purpose of the utility model is to provide a digestive fluid filtering and reinfusion device to solve the problems existing in the prior art, make the filtering and reinfusion of digestive fluid simpler and more convenient, reduce digestive fluid pollution, reduce the workload of nurses, and improve the efficiency and quality of nursing work.

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0042] Example 1

[0043] This embodiment provides a digestive fluid filtering and reinfusion device 100, which can be a disposable device or a reusable device. When it is a reusable device, it needs to be thoroughly cleaned before use. Here, it is preferably set to be a disposable device, such as Figures 1 to 4 As shown, it includes a collecting barrel 10, a filtering device and a return device 40; the collecting barrel 10 has a accommodating cavity 12, an upper opening 11 and a lower opening connected to the accommodating cavity 12; a hard partition plate 13 is fixedly provided at the lower opening, and a plurality of through-flow holes are opened on the hard partition plate 13; the filtering device includes a primary filter 20 and a filter mesh group 30; the primary filter 20 includes a straight tube 21 and a tapered tube 22, the straight tube 21 is slidably passed through the upper opening 11, and the tapered tube 22 is located in the accommodating cavity 12; the end of the straight tube 21 located outside the accommodating cavity 12 is open for receiving the collected digestive fluid; the end of the straight tube 21 located in the accommodating cavity 12 is connected and communicated with the small end of the tapered tube 22; the large end of the tapered tube 22 is provided with a primary filter plate 23, and the primary filter plate 23 is opened There are multiple primary filter holes passing through; the filter group 30 includes at least one first filter 31; the first filter 31 is located in the accommodating cavity 12 between the primary filter plate 23 and the hard partition plate 13; the first filter 31 and the primary filter plate 23, as well as the first filter 31 and the hard partition plate 13 are connected by at least two flexible connecting ropes 32; the primary filter 20 can move in the accommodating cavity 12 toward the first filter 31 based on gravity and press on the first filter 31; the recirculator 40 has a recirculation cavity and a discharge pipe 41; the recirculator 40 is fixedly arranged below the hard partition plate 13, and the recirculation cavity is connected to the flow holes on the hard partition plate 13; the discharge pipe 41 is connected to the recirculation cavity; a valve 42 for controlling opening and closing is provided on the discharge pipe 41.

[0044] One end of the straight tube 21 is opened to connect the drainage bag and the liquid outlet of the negative pressure suction device, that is, it serves as the inlet of the digestive fluid. The digestive fluid flows downward by itself under the action of gravity, passes through the primary filter plate 23, the first filter screen 31 and the hard partition plate 13 in sequence, and then flows into the reinfusion device 40. The discharge pipe 41 of the reinfusion device 40 is connected to the gastric tube or gastrointestinal tube, so that the filtered digestive fluid is returned to the patient's gastrointestinal tract; when the digestive fluid has flowed out, the primary filter 20 can fall on the first filter screen 31 based on gravity, and both the primary filter 20 and the first filter screen 31 will fall on the hard partition plate 13. On the plate 13, the hard material of the primary filter plate 23 and the hard partition plate 13 on the primary filter 20 will form a squeezing effect on the flexible first filter screen 31 in the middle, so that the digestive fluid remaining on the filter screen can fully flow into the reinfusion device 40, reducing the waste of digestive fluid and improving the utilization rate of digestive fluid filtration; the whole process makes the filtration and reinfusion of digestive fluid simpler and more convenient; and reduces the direct contact between digestive fluid and human labor, reducing the pollution of digestive fluid; and to a certain extent reduces the pollution of the air by the odor of digestive fluid, reduces the workload of nurses, and improves the efficiency and quality of nursing work.

[0045] Among them, the relevant setting instructions for the collection bucket 10 are:

[0046] Specifically, a hanging rope 15 is fixedly provided on the outer side of the upper end of the collecting barrel 10 to facilitate hanging the entire device on the infusion stand.

[0047] Among them, the relevant setting instructions for the filtering device are:

[0048] Specifically, the primary filter holes on the primary filter plate 23 can be set to have a small aperture in the center and a large aperture in the periphery, that is, along the radial direction of the primary filter plate 23, from the center to the outside, the aperture size of the primary filter holes tends to gradually expand, so as to prevent the digestive fluid from only passing through the middle hole due to gravity and avoiding blockage in the middle; so that the digestive fluid can be diverted from other holes, achieving a diversion effect similar to a shower head, and improving the smooth and uniform flow of the filtration; Figure 3 As shown, the primary filter plate 23 is provided with 11 primary filter holes of different sizes: 1 is located in the center, with a hole diameter of 2mm; the second circle is provided with 5 primary filter holes, each of which has the same pore size of 4mm; the third circle is provided with 5 primary filter holes, each of which has the same pore size of 6mm; the pore size of the smallest primary filter hole on the primary filter plate 23 is larger than the mesh size of the first filter screen 31 at the top.

[0049] Specifically, the number and spacing of the first filter screens 31 can be set according to actual conditions, including but not limited to the following three settings. When it is set to three, the spacing between two adjacent first filter screens 31 can be set to 1.5 cm; and the spacing between the uppermost first filter screen 31 and the primary filter plate 23, and between the lowermost first filter screen 31 and the hard partition plate 13 is also set to 1.5 cm.

[0050] Specifically, each adjacent two first filter screens 31, the uppermost first filter screen 31 and the primary filter plate 23, and the lowermost first filter screen 31 and the hard partition plate 13 are connected together by a flexible connecting rope 32; Figure 4 As shown, the primary filter plate 23, each first filter screen 31 and the hard partition plate 13 can be connected by two flexible connecting ropes 32, that is, each flexible connecting rope 32 passes through each first filter screen 31, and the ends of the flexible connecting rope 32 are respectively bonded to the primary filter plate 23 and the hard partition plate 13; or each component can be connected to each other by using small sections of flexible connecting rope 32.

[0051] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 4 As shown, there are three first filters 31, each arranged in parallel along the axis of the accommodating cavity 12. The apertures of each first filter 31 gradually decrease in the direction of digestive fluid flow, and the apertures of the first filters 31 near the hard partition 13 are smaller than the apertures of the flow holes. The use of three first filters 31 ensures adequate filtration of the digestive fluid. The gradually decreasing apertures of each first filter 31 ensure the filtration of impurities of varying sizes within the digestive fluid, ensuring effective and smooth filtration and reducing the risk of clogging during the filtration process.

[0052] Among the optional solutions of this embodiment, it is more preferred that Figure 1As shown, a fixing sleeve 50 is sheathed around the outer portion of the straight tube 21 outside the receiving cavity 12. A sealing plug 14 is sealed at one end of the straight tube 21 outside the receiving cavity 12. The outer diameter of the sealing plug 14 is larger than that of the straight tube 21. The inner diameter of the end of the fixing sleeve 50 near the sealing plug 14 is smaller than that of the sealing plug 14. Furthermore, the outer diameter of the end of the fixing sleeve 50 near the upper opening 11 is larger than that of the upper opening 11. The provision of the fixing sleeve 50 protects the section of the straight tube 21 outside the receiving cavity 12 from the outside world, reducing contamination of the section of the straight tube 21 outside the receiving cavity 12 and improving the sterile environment. Furthermore, the fixing sleeve 50 ensures that the primary filter 20 remains fixed relative to the collection barrel 10, thereby ensuring that the digestive fluid flows normally within the primary filter 20 and the filter assembly 30. Once the digestive fluid has drained away, the primary filter 20 can be removed to compress the filter assembly 30.

[0053] Specifically, the height of the fixing sleeve 50 in the axial direction of the collecting barrel 10 is not less than the maximum distance between the primary filter plate 23 and the hard partition plate 13. When the primary filter 20 squeezes the filter mesh group 30, it can also ensure that the upper end of the straight tube 21 is located outside the collecting barrel 10.

[0054] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, the fixing sleeve 50 has an opening 51 on its sidewall, through which the fixing sleeve 50 can be mounted on the straight tube 21. A first locking member 52 and a second locking member 53 are fixedly mounted on the sidewalls of the fixing sleeve 50 on either side of the opening 51. The first locking member 52 and the second locking member 53 can interlock to maintain the opening 51 in a closed state. The fixing sleeve 50 is provided with an opening 51, and the first locking member 52 and the second locking member 53 are used to close or open the opening 51. It has a simple structure and is easy to operate. During use, the straight tube 21 can be positioned within the fixing sleeve 50 simply by passing through the opening 51 from the side of the straight tube 21. This makes installation and removal simple and convenient, improving work efficiency.

[0055] Specifically, the first locking member 52 and the second locking member 53 are existing locking matching structures, which can be used to achieve locking closure at the opening 51, for example, by utilizing the mortise and tenon structure principle, etc., which will not be described in detail here.

[0056] Among them, the relevant setting instructions about the reinfusion device 40 are as follows:

[0057] Among the optional solutions of this embodiment, it is more preferred that Figure 1As shown, the reinfusion device 40 is a flexible reinfusion bag. The upper open edge of the flexible reinfusion bag is sealed and fixedly connected to the lower edge of the collection bucket 10. The internal cavity of the flexible reinfusion bag forms a reinfusion cavity. The reinfusion device 40 is a flexible reinfusion bag, which is similar to an infusion bag and is easy to manufacture and use.

[0058] In an alternative embodiment of the present invention, the reinfusion device 40 preferably has a transparent sidewall with scale lines 43. The transparent sidewall and scale lines 43 of the reinfusion device 40 facilitate medical personnel to observe the amount of digestive fluid filtered, providing a basis for medical care.

[0059] Specifically, the scale range on the reinfusion device 40 can be set according to actual needs, for example, set to 0-500 mL, with a graduation value of 20 mL.

[0060] Specifically, the valve 42 provided on the discharge pipe 41 can be any existing valve 42 structure that can control opening and closing or even adjust the flow rate, including but not limited to a blocking clamp that can control opening and closing; the blocking clamp is close to the output port of the return device 40 when in use.

[0061] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, a Moffitt dropper 44 is provided on the discharge pipe 41. The provision of the Moffitt dropper 44 can facilitate the dripping rate of the digestive fluid after the display filter, and facilitates the exhaust operation.

[0062] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, a flow regulator 45 is provided on the discharge pipe 41. The flow regulator 45 can conveniently control the flow of the returned digestive fluid.

[0063] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the end of the discharge tube 41 is provided with a pagoda connector 46. The pagoda connector 46 provided at the end of the discharge tube 41 facilitates its connection with the end of the stomach tube or the gastrointestinal tube, and improves the connection firmness.

[0064] Among them, regarding other related instructions:

[0065] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the outer edges of the rigid partition plates 13 and each first filter screen 31 are in contact with the inner wall edges of the accommodating cavity 12. This ensures that the digestive fluid is fully filtered through each layer, preventing leakage and unfiltered liquid from entering the next stage, thereby ensuring effective filtration.

[0066] Specific instructions for use:

[0067] When in use, first use the blocking clamp to clamp the discharge pipe 41 and close the flow regulator 45, so that the collected digestive fluid will not directly enter the discharge pipe 41 (the primary filter 20 and the collection barrel 10 are not completely sealed, thereby ensuring that when the digestive fluid is filled into the interior, the digestive fluid can flow downward normally based on gravity and filter itself), and at the same time, the total amount of digestive fluid after filtration can be measured more accurately. Open the sealing plug 14 at the upper end opening of the straight tube 21 and connect it to the negative pressure drain outlet. The upper end opening of the straight tube 21 wraps the negative pressure drain outlet and has a long overlapping part. After the connection is completed, the entire device is hung on the infusion stand through the hanging rope 15. The digestive fluid in the negative pressure drain will flow downward due to gravity, pass through the primary filter plate 23 of the primary filter 20, and realize a diversion like a shower and fall into the filter group 30 for filtration. After the digestive fluid in the negative pressure drain is exhausted, remove the empty negative pressure drain and cover it with the sealing plug 14. When no liquid flows down from the filter group 30, remove the fixing sleeve 50, so that the primary filter 20 loses its support and falls due to gravity on the filter group 30. Squeeze to make the digestive fluid remaining on the filter flow into the flexible reinfusion bag, record the total amount of digestive fluid obtained after filtration through the scale on the flexible reinfusion bag, open the blocking clamp, turn over the Mofei dropper 44 to exhaust, open the flow regulator 45, make the digestive fluid flow to the end of the discharge pipe 41, and close the flow regulator 45, connect the pagoda connector 46 at the end of the discharge pipe 41 to the gastric tube or gastrointestinal tube, open the flow regulator 45, adjust the number of drops through the flow regulator 45 (or open the flow regulator 45 valve to the full extent, and set the number of drops with the help of an infusion pump that can control the Mofei dropper 44) and return the digestive fluid to the patient's gastrointestinal tract. Whether the passage is unobstructed can be judged by observing the Mofei dropper 44.

[0068] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A digestive fluid filtering and re-infusion device, characterized in that: Including collection bucket, filtration device and return device; The collecting bucket has an accommodating cavity, an upper opening and a lower opening communicating with the accommodating cavity; a hard partition plate is fixedly provided at the lower opening, and a plurality of through-flow holes are formed on the hard partition plate; The filtering device includes a primary filter and a filter mesh group; The primary filter includes a straight tube and a tapered tube. The straight tube is slidably inserted into the upper opening, and the tapered tube is located in the accommodating cavity. One end of the straight tube located outside the accommodating cavity is open for receiving the collected digestive fluid. One end opening of the straight tube located in the accommodating cavity is connected and communicated with the small end of the tapered tube; the large end of the tapered tube is provided with a primary filter plate, and a plurality of primary filter holes are formed on the primary filter plate; The filter screen group includes at least one first filter screen; the first filter screen is located in the accommodating cavity between the primary filter plate and the hard partition plate; the first filter screen and the primary filter plate, as well as the first filter screen and the hard partition plate, are connected by at least two flexible connecting ropes; The primary filter can move in the accommodating cavity toward the first filter screen due to gravity and press onto the first filter screen; The recirculation device has a recirculation cavity and a discharge pipe; the recirculation device is fixedly arranged below the hard partition plate, and the recirculation cavity is connected with each of the flow holes on the hard partition plate; the discharge pipe is connected with the recirculation cavity; and a valve for controlling opening and closing is provided on the discharge pipe.

2. The digestive fluid filtering and re-infusion device according to claim 1, characterized in that: There are three first filter screens, and each of the first filter screens is arranged in parallel along the axial direction of the accommodating cavity; in the flow direction of the digestive fluid, the mesh aperture of each of the first filter screens tends to gradually shrink; and the mesh aperture of the first filter screen close to the hard partition plate is smaller than the aperture of the flow hole.

3. The digestive fluid filtering and re-infusion device according to claim 1, characterized in that: The outer edges of the hard partition plate and each of the first filter screens are in contact with the inner wall edge of the accommodating cavity.

4. The digestive fluid filtering and re-infusion device according to claim 1, characterized in that: The reinfusion device is a flexible reinfusion bag, the upper opening edge of the flexible reinfusion bag is sealed and fixedly connected to the lower edge of the collecting bucket, and the inner cavity of the flexible reinfusion bag forms the reinfusion cavity.

5. The digestive fluid filtering and re-infusion device according to claim 1, characterized in that: The reinfusion device has a transparent side wall, and scale lines are arranged on the side wall.

6. The digestive fluid filtering and re-infusion device according to claim 1, characterized in that: A fixing sleeve is provided on the outer side of a section of the straight tube outside the accommodating cavity; An opening at one end of the straight tube outside the accommodating cavity is sealed with a sealing plug, and the outer diameter of the sealing plug is larger than the outer diameter of the straight tube; The inner diameter of one end of the fixing sleeve close to the sealing plug is smaller than the outer diameter of the sealing plug; and the outer diameter of one end of the fixing sleeve close to the upper opening is larger than the outer diameter of the upper opening.

7. The digestive fluid filtering and reinfusion device according to claim 1, characterized in that: The discharge pipe is provided with a Moffitt dropper.

8. The digestive fluid filtering and reinfusion device according to claim 1, characterized in that: The discharge pipe is provided with a flow regulator.

9. The digestive fluid filtering and reinfusion device according to claim 1, characterized in that: The end of the discharge pipe is configured as a pagoda joint.

10. The digestive fluid filtering and reinfusion device according to claim 6, characterized in that: An opening is provided on the side wall of the fixing sleeve, and the fixing sleeve can be mounted on the straight pipe through the opening. A first locking member and a second locking member are fixedly provided on the side walls of the fixing sleeve on both sides of the opening, respectively. The first locking member and the second locking member can lock each other to keep the opening closed.

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