A direct-connected intestinal fluid reinfusion device

Abstract

The present invention discloses a direct-connected intestinal fluid re-infusion device, belonging to the field of intestinal fluid recovery devices. The direct-connected intestinal fluid re-infusion device includes a re-infusion pipe and a magnetic suspension pump located in the middle of the re-infusion pipe. A receiving cavity is arranged in the middle of the re-infusion pipe, and the rotor of the magnetic suspension pump is located in the receiving cavity. The direct-connected intestinal fluid re-infusion device disclosed in the present invention can directly pump back intestinal fluid, has a simple structure, and can maintain good working stability when the human body is in a moving state, is convenient to carry and easy to use.

Description

Technical Field

[0001] The present invention relates to the field of intestinal fluid retransfusion devices, and in particular to a direct-connected intestinal fluid retransfusion device. Background Art

[0002] Common features of neonatal enterostomy are pulling the child's intestinal tract out of the abdominal wall and routinely forming two stoma openings. Due to limited digestion and absorption of the proximal intestinal tract, a large amount of intestinal fluid is easily lost, causing a series of pathophysiological changes such as disorders of the water-electrolyte and acid-base balance systems, malnutrition, etc., seriously affecting the growth and development and quality of life of the child. Since the fecal discharge from the proximal stoma of the child contains partially digested nutrients, it can be reabsorbed and utilized by the intestine. Therefore, the feces discharged from the child's own proximal stoma can be retransfused into the distal intestinal tract through the distal stoma, which can improve the nutritional status and intestinal function of the child. In the prior art, an intestinal fluid retransfusion device is often used to retransfuse intestinal fluids such as nutrient solutions and digestive fluids into the healthy intestinal tract. In current clinical practice, the fistula fluid recovered from the proximal intestine is often retransfused through a long pipeline into a large-volume fistula recovery device for buffering and then output, and then the fistula fluid is retransfused into the distal intestine through another long pipeline and thus retransfused into the patient's body. This device is quite inconvenient in actual use. For example, the fistula recovery device is not convenient for the patient to carry, affecting the patient's range of activities, and it is difficult to keep warm during long-pipeline transportation.

[0003] Chinese Patent Document Publication No. CN110180039A discloses a multi-functional intestinal fluid retransfusion device, including a stoma bag, a connecting pipe, a fixing sleeve, a first spring, a first sliding plate, a first liquid sensor, a second liquid sensor, a second spring, a second sliding plate, an air inflation pump, and a limiting block. By using this device, the intestinal fluid leaking from the proximal ruptured intestinal tract at the patient's wound can be retransfused into the distal end of the patient's intestinal tract through a closed system. The above-mentioned multi-functional intestinal fluid retransfusion device provided by the patent uses an air inflation pump to drive the intestinal fluid retransfusion. Its air inflation pump is only used for the on-off of the valve and cannot provide power for the intestinal fluid retransfusion itself, and its structure is too complex. Moreover, the human body is extremely unstable relative to the working environment and is prone to working failures. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to provide a direct-connected intestinal fluid retransfusion device, which can directly pump back the intestinal fluid, has a simple structure, and can maintain good working stability when the human body is in a moving state, is convenient to carry and easy to use.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A direct-connected intestinal fluid reinfusion device provided by the present invention includes a reinfusion tube, and further includes a magnetic levitation pump located in the middle of the reinfusion tube. A receiving cavity is provided in the middle of the reinfusion tube. The permanent magnet rotor of the magnetic levitation pump is located in the receiving cavity, and the stator core of the magnetic levitation pump is located on the outer wall of the receiving cavity.

[0007] A further technical solution of the present invention is that the reinfusion tube includes a proximal intestinal tube and a distal intestinal tube. One end of the proximal intestinal tube is provided with a proximal plum blossom head, and the other end is connected to the liquid inlet of the magnetic levitation pump. One end of the distal intestinal tube is connected to the liquid outlet of the magnetic levitation pump, and the other end is provided with a distal plum blossom head.

[0008] A further technical solution of the present invention is that it further includes a stoma leakage prevention cover. The stoma leakage prevention cover is sleeved on the proximal plum blossom head and / or the distal plum blossom head. The stoma leakage prevention cover includes an annular silicone disc, a bag body and a connecting piece. The head of the proximal plum blossom head and / or the head of the distal plum blossom head extends into the corresponding bag body. One end of the proximal intestinal tube close to the proximal plum blossom head and / or the other end of the distal intestinal tube close to the distal plum blossom head are fixedly connected to the side wall of the bag body through the connecting piece.

[0009] A further technical solution of the present invention is that the connecting piece includes an annular clamping sleeve and a circular clamping plate. An installation opening for installing the connecting piece is provided on one side wall of the bag body. The annular clamping sleeve is fixed at the edge of the installation opening. A circular clamping groove is provided on the circular clamping plate. An annular protrusion is provided on the inner wall of the annular clamping sleeve. The circular clamping groove and the annular protrusion are in clamping fit.

[0010] A further technical solution of the present invention is that one end of the proximal intestinal tube close to the proximal plum blossom head and / or the other end of the distal intestinal tube close to the distal plum blossom head pass through the middle of the corresponding circular clamping plate and are fixedly connected to the corresponding circular clamping plate.

[0011] A further technical solution of the present invention is that the proximal plum blossom head and / or the distal plum blossom head are both configured as separable plum blossom heads. A connecting tube is provided at one end of the separable plum blossom head. A fixed cylinder with a through hole is provided in the middle of each circular clamping plate. The diameter of the fixed cylinder gradually increases from the first end far from the circular clamping plate to the second end close to the circular clamping plate. The connecting tube is sleeved on the fixed cylinder, and the connecting tube and the fixed cylinder are in interference fit.

[0012] A further technical solution of the present invention is that an elastic retaining ring is provided on one side wall of the annular ferrule, one side wall of the elastic retaining ring close to the center of the annular ferrule is configured as an inclined sealing ring surface, a beveled convex head is provided at one end of the circular clamping plate, and the inclined sealing ring surface is in interference fit with the beveled convex head.

[0013] A further technical solution of the present invention is that it further includes a rotor cleaner for cleaning the permanent magnet rotor, and a part of the pipeline of the rotor cleaner is fixed on one side of the stator core.

[0014] A further technical solution of the present invention is that a first flow sensor is provided on one side of the proximal plum blossom head; and / or a second flow sensor is provided on one side of the distal plum blossom head.

[0015] A further technical solution of the present invention is that a filtering cavity is provided on the inner side wall of the circular clamping plate, at least one layer of filter membrane is provided in the filtering cavity, and the fixed cylinder is fixed in the middle of the side wall of the filtering cavity.

[0016] The beneficial effects of the present invention are as follows:

[0017] For the direct-connected intestinal fluid re-infusion device provided by the present invention, a receiving cavity is provided on the re-infusion pipe for accommodating the rotor of the magnetic levitation pump. Since the magnetic levitation pump itself is easy to be automatically controlled and has good low-speed stability, it can simulate the slow transportation of intestinal fluid. Moreover, the re-infusion pipe can be directly connected to the proximal intestine and the distal intestine through the magnetic levitation pump, and the intestinal fluid can be timely re-infused into the human body, and the human body temperature can be used to keep the intestinal fluid warm. The present invention also provides a special stoma leakage prevention cover, which can not only collect the fistula fluid from the proximal intestine or the distal intestine, but also place the connection part of the proximal intestine or the distal intestine inside the special stoma leakage prevention cover, so that the stoma connection part has a good leakage prevention effect and is convenient for inserting the proximal or distal plum blossom head. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the direct-connected intestinal fluid re-infusion device provided in Embodiment 1 of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the stoma leakage prevention cover provided in Embodiment 1 of the present invention;

[0020] Figure 3 It is a partial schematic diagram A of the stoma leakage prevention cover provided in Embodiment 1 of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the direct-connected intestinal fluid re-infusion device provided in Embodiment 2 of the present invention;

[0022] Figure 5It is a schematic structural diagram of the circular card board provided in the second embodiment of the present invention;

[0023] Figure 6 It is a schematic structural diagram of the direct-connected intestinal fluid re-infusion device provided in the third embodiment of the present invention;

[0024] Figure 7 It is a partial schematic diagram B of the direct-connected intestinal fluid re-infusion device provided in the third embodiment of the present invention.

[0025] In the figure: 1, re-infusion tube; 2, magnetic suspension pump; 11, accommodation cavity; 12, proximal intestinal tube; 13, distal intestinal tube; 121, proximal plum blossom head; 131, distal plum blossom head; 3, stoma leakage prevention cover; 31, annular silica gel disc; 32, bag body; 33, connecting piece; 331, annular card sleeve; 332, circular card board; 321, installation port; 322, annular card slot; 311, annular protrusion; 312, elastic retaining ring; 100, inclined sealing ring surface; 200, inclined surface convex head; 21, permanent magnet rotor; 22, stator iron core; 211, first flow sensor; 300, second flow sensor; 4, connecting tube; 400, fixed cylinder; 5, filtering cavity; 51, filter membrane; 61, cleaning branch pipe; 62, cleaning valve; 63, pressure increasing valve; 64, water inlet branch; 65, water delivery branch; 67, first type of high-pressure injection nozzle; 68, second type of high-pressure injection nozzle; 69, proximal valve. Detailed implementation manners

[0026] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific implementation manners.

[0027] Embodiment 1

[0028] Such as Figures 1 to 3As shown in the figure, the direct-connected intestinal fluid re-infusion device provided in this embodiment includes a re-infusion tube 1 and a magnetic suspension pump 2 located in the middle of the re-infusion tube 1. A receiving cavity 11 is provided in the middle of the re-infusion tube 1. The permanent magnet rotor 21 of the magnetic suspension pump 2 is located in the receiving cavity 11, and the stator core 22 of the magnetic suspension pump 2 is located on the outer wall of the receiving cavity 11. After the magnetic suspension pump 2 works, the intestinal fluid is pumped back into the human body through the magnetic suspension pump 2. For proximal intestinal fistulas, an intestinal fluid re-infusion device is often required to re-infuse the intestinal fluid to ensure the normal nutritional absorption of the child. The frequency of the duodenal proximal end and the main working area is about 10-12 times / min, while the frequency of the distal end is 6-9 times / min. The rate of intestinal peristalsis is usually about 0.5-2.0 cm / s. During specific use, when intestinal fluid re-infusion is required, the magnetic suspension pump 2 rotates to drive the flow of intestinal fluid inside the re-infusion tube 1. The re-infusion tube 1 is directly connected to the proximal and distal ends of the intestine, enabling the intestinal fluid flowing out of the proximal end of the intestine to quickly flow back into the child's body to ensure the normal nutritional supply of the child. The intestinal fluid at the proximal end of the child's intestine is somewhat similar to milk and is in a liquid state. As the intestinal fluid flows in the intestine, water is gradually absorbed. Since the magnetic suspension pump 2 is easy to automate control and has good low-speed stability, it can simulate the slow delivery of intestinal fluid. And through the magnetic suspension pump 2, the re-infusion tube 1 can be directly connected to the proximal and distal ends of the intestine, ensuring that the intestinal fluid is promptly returned to the human body and using the human body temperature for heat preservation.

[0029] To facilitate the fixation of both ends of the re-infusion tube 1, further, the re-infusion tube 1 includes a proximal intestinal tube 12 and a distal intestinal tube 13. One end of the proximal intestinal tube 12 is provided with a proximal plum blossom head 121, and the other end is connected to the liquid inlet of the magnetic suspension pump 2. One end of the distal intestinal tube 13 is connected to the liquid outlet of the magnetic suspension pump 2, and the other end is provided with a distal plum blossom head 131. The shapes of the proximal plum blossom head 121 and the distal plum blossom head 131 are similar to oval bulges. A number of holes for the flow of intestinal fluid are provided on the oval bulges. The oval bulges enable the proximal or distal end of the intestine sleeved on the proximal plum blossom head 121 or the distal plum blossom head 131 to be firmly sleeved on the re-infusion tube 1.

[0030] To avoid leakage at the proximal plum blossom head 121 and / or the distal plum blossom head 131, further, the direct-connected intestinal fluid re-infusion device further includes a stoma leak-proof cover 3, and the stoma leak-proof cover 3 is sleeved on the proximal plum blossom head 121 and / or the distal plum blossom head 131. The stoma leak-proof cover 3 is sleeved on the proximal plum blossom head 121, or the distal plum blossom head 131, or both the proximal plum blossom head 121 and the distal plum blossom head 131. Usually, two stoma leak-proof covers 3 are sleeved to prevent leakage at the proximal intestine and the distal intestine. To make the connection between the proximal intestine and the distal intestine located within the stoma leak-proof cover 3, further, the stoma leak-proof cover 3 includes an annular silicone disc 31, a bag body 32, and a connecting member 33. The head of the proximal plum blossom head 121 and / or the head of the distal plum blossom head 131 extends into the corresponding bag body 32, and one end of the proximal intestinal tube 12 near the proximal plum blossom head 121 and / or the other end of the distal intestinal tube 13 near the distal plum blossom head 131 are fixedly connected to the side wall of the bag body 32 through the connecting member 33. That is, the two end portions of the re-infusion tube 1 are respectively inserted into the bag body 32 at the proximal intestine and the bag body 32 at the distal intestine, so that the connection between the proximal intestine and the distal intestine is located within the stoma leak-proof cover 3, and then the two end portions of the re-infusion tube 1 are fixedly connected to the side wall of the bag body 32 through the connecting member 33, so that the two end portions of the re-infusion tube 1 are fixed, thereby avoiding leakage of intestinal fluid between the proximal intestine and the distal intestine. Further preferably, the connecting member 33 includes an annular ferrule 331 and a circular clamping plate 332. An installation opening 321 for installing the connecting member 33 is provided on one side wall of the bag body 32. The annular ferrule 331 is fixed at the edge of the installation opening 321. An annular clamping groove 322 is provided on the circular clamping plate 332, and an annular protrusion 311 is provided on the inner wall of the annular ferrule 331. The annular clamping groove 322 and the annular protrusion 311 are in clamping fit. One end of the proximal intestinal tube 12 near the proximal plum blossom head 121 and / or the other end of the distal intestinal tube 13 near the distal plum blossom head 131 pass through the middle of the corresponding circular clamping plate 332 and are fixedly connected to the corresponding circular clamping plate 332. That is, first, one end of the proximal intestinal tube 12 near the proximal plum blossom head 121 and / or the other end of the distal intestinal tube 13 near the distal plum blossom head 131 are fixed in the middle of their respective corresponding circular clamping plates 332, and then the circular clamping plate 332 is in clamping fit with the corresponding annular ferrule 331.During specific use, first let the proximal intestine or the distal intestine enter the bag body 32 through the round hole in the middle of the annular silicone disc 31. Then, operate inside the bag body 32 to sleeved the proximal intestine or the distal intestine on the proximal plum blossom head 121 or the distal plum blossom head 131. At this time, if the bag body 32 is closed, it is obviously very difficult to perform the above connection inside the bag body 32. Therefore, in this embodiment, a ring-shaped sleeve 331 with a larger diameter and a circular card board 332 are designed. The ring-shaped sleeve 331 and the circular card board 332 are detachably connected. In this way, during the process of sleeving the proximal intestine or the distal intestine on the proximal plum blossom head 121 or the distal plum blossom head 131, the circular card board 332 can be not used to cover the installation opening 321 first. At this time, the middle part of the ring-shaped sleeve 331 is a sleeve opening, that is, a round through hole. Through the sleeve opening, it is convenient to perform the sleeving operation of the proximal intestine or the distal intestine and the plum blossom head. After the sleeving operation is completed, the circular card board 332 and the ring-shaped sleeve 331 are clamped and matched to seal the bag body 32. Further, the annular card slot 322 and the annular protrusion 311 are clamped and matched to realize the detachable connection of the ring-shaped sleeve 331 and the circular card board 332.

[0031] In order to enhance the sealing effect at the clamping connection of the ring-shaped sleeve 331 and the circular card board 332, further, an elastic retaining ring 312 is provided on one side wall of the ring-shaped sleeve 331. The side wall of the elastic retaining ring 312 close to the center of the ring-shaped sleeve 331 is configured as an inclined sealing ring surface 100. A beveled convex head 200 adapted to the inclined sealing ring surface 100 is provided at one end of the circular card board 332. The inclined sealing ring surface 100 and the beveled convex head 200 are in interference fit. Since the elastic retaining ring 312 is elastic, when the beveled convex head 200 squeezes the inclined sealing ring surface 100, the interference fit between the two can be realized, so that the clamping connection has a good sealing effect.

[0032] The magnetic levitation pump 2 includes a permanent magnet rotor 21 and a stator core 22. The stator core 22 is fixed on the periphery of the return pipe 1, and the permanent magnet rotor 21 is located inside the return pipe 1. When the stator core 22 is powered on, the permanent magnet rotor 21 will rotate under the action of the magnetic field. After the permanent magnet rotor 21 rotates, it drives the intestinal fluid transportation. In order to facilitate the detection of the intestinal fluid flow rate at the proximal end and the distal end of the return pipe 1, further, a first flow sensor 211 for detecting the proximal flow rate is provided on one side of the proximal plum blossom head 121 and / or a second flow sensor 300 for detecting the distal flow rate is provided on one side of the distal plum blossom head 131. The first flow sensor 211 can detect the flow rate at the proximal end of the intestine. Moreover, when the flow rate at the proximal end increases from zero, it indicates that the child is eating. At this time, the stator core 22 of the magnetic levitation pump 2 rotates, so that the return pipe 1 performs intestinal fluid return. When neither the first flow sensor 211 nor the second flow sensor 300 detects a flow rate, it indicates that the child has finished eating at this time, and the stator core 22 stops working and no longer performs intestinal fluid return.

[0033] Example 2

[0034] The direct-connected intestinal juice re-infusion device provided in this embodiment includes a re-infusion tube 1 and a magnetic suspension pump 2 located in the middle of the re-infusion tube 1. A receiving cavity 11 is provided in the middle of the re-infusion tube 1. The permanent magnet rotor 21 of the magnetic suspension pump 2 is located in the receiving cavity 11, and the stator core 22 of the magnetic suspension pump 2 is located on the outer wall of the receiving cavity 11.

[0035] As Figure 4 and Figure 5 shown, the difference between Example 2 and Example 1 is that:

[0036] In the direct-connected intestinal juice re-infusion device provided in this embodiment, its proximal plum blossom head 121 and / or distal plum blossom head 131 are both configured as separable plum blossom heads. A connecting tube 4 is provided at one end of the separable plum blossom head. A fixing cylinder 400 with a through hole is provided in the middle of each circular clamping plate 332. The diameter of the fixing cylinder 400 gradually increases from the first end far from the circular clamping plate 332 to the second end close to the circular clamping plate 332. The connecting tube 4 is sleeved on the fixing cylinder 400, and the connecting tube 4 is in interference fit with the fixing cylinder 400. Because if the circular clamping plate 332 is fixedly connected to the re-infusion tube 1, when the two ends of the re-infusion tube 1 are installed, it is easy to be interfered by the circular clamping plate 332. At this time, if the proximal plum blossom head 121 or the distal plum blossom head 131 is too far from the circular clamping plate 332, it will easily cause the section of the tube from the connection between the proximal plum blossom head 121 and the proximal intestine or the connection between the distal plum blossom head 131 and the distal intestine to the corresponding circular clamping plate 332 to need to be bent to be placed into the bag body 32. If the proximal plum blossom head 121 or the distal plum blossom head 131 is too close to the circular clamping plate 332, it will cause the circular clamping plate 332 to easily obstruct the installation position of the proximal plum blossom head 121 or the distal plum blossom head 131 at the connection with the proximal intestine and the distal intestine, which is not conducive to the socket connection of the intestinal ends. Therefore, the proximal plum blossom head 121 and / or distal plum blossom head 131 with a connecting tube 4, that is, a separable plum blossom head, are designed. In this way, when being inserted and matched with the fixing cylinder 400 of the circular clamping plate 332, the above problems can be well solved. After the connection between the proximal plum blossom head 121 and the proximal intestine or the connection between the distal plum blossom head 131 and the distal intestine is completed first, then one end of the connecting tube 4 of the proximal plum blossom head 121 and / or distal plum blossom head 131 is inserted and matched with the corresponding fixing cylinder 400, so as to quickly complete the installation. At this time, if it is found that the connecting tube 4 is too long, it can be directly cut short with scissors. Further preferably, in order to prevent intestinal juice impurities from entering the magnetic suspension pump 2, further, a filtering cavity 5 is provided on the inner side wall of the circular clamping plate 332. At least one layer of filter membrane 51 is provided in the filtering cavity 5. The fixing cylinder 400 is fixed in the middle of the side wall of the filtering cavity 5. The intestinal juice can be filtered through at least one layer of filter membrane 51, so as to effectively prevent intestinal juice impurities from entering the magnetic suspension pump 2 to protect the permanent magnet rotor 21.

[0037] Embodiment III

[0038] The direct-connected intestinal fluid reinfusion device provided in this embodiment includes a reinfusion tube 1 and a magnetic suspension pump 2 located in the middle of the reinfusion tube 1. A receiving cavity 11 is provided in the middle of the reinfusion tube 1. The permanent magnet rotor 21 of the magnetic suspension pump 2 is located in the receiving cavity 11, and the stator core 22 of the magnetic suspension pump 2 is located on the outer wall of the receiving cavity 11.

[0039] As Figure 6 and Figure 7 shown, the differences between Embodiment III and Embodiment I and Embodiment II are as follows:

[0040] The direct-connected intestinal fluid re-infusion device provided in this embodiment further includes a rotor cleaner, which is used to clean the permanent magnet rotor 21. A part of the pipeline of the rotor cleaner is fixed on one side of the stator core 22. When the magnetic suspension pump 2 needs to be cleaned, the proximal intestinal tube 12 is placed in a pool of clean water or physiological saline for cleaning. The clean water or physiological saline flows through the proximal intestinal tube 12, the magnetic suspension pump 2, and the distal intestinal tube 13 in sequence to achieve the purpose of cleaning. However, due to the special shape of the permanent magnet rotor 21, if only the method of introducing clean water is used for cleaning, the cleaning effect is extremely limited. Therefore, a special rotor cleaner is set to clean the permanent magnet rotor 21. The rotor cleaner can form a high-pressure jet water column to perform pressurized cleaning on the permanent magnet rotor 21. At this time, the distal intestinal tube 13 is preferably externally connected to a sewage recovery device with a negative pressure function to continuously drain the accumulated water in the magnetic suspension pump 2. The permanent magnet rotor 21 of the magnetic suspension pump 2 is appropriately driven to rotate idly, and the cleaning angle of the permanent magnet rotor 21 can be adjusted. The rotor cleaner includes a cleaning branch pipe 61, a cleaning valve 62, a pressure increasing valve 63, a water inlet branch 64, several water delivery branches 65, and a first type of high-pressure jet nozzle 67 and a second type of high-pressure jet nozzle 68 connected to the water delivery branch 65. At this time, a proximal valve 69 is provided on the proximal intestinal tube 12. One end of the cleaning branch pipe 61 is connected to the proximal intestinal tube 12 and is closer to the proximal intestine than the proximal valve 69. The water inlet branch 64 is an annular pipeline, which is distributed around the circumference of the magnetic suspension pump 2 and fixed at one end of the stator core 22. The water inlet ends of several water delivery branches 65 are all connected to the annular water inlet branch 64. Several water delivery branches 65 are fixed on the outside of the stator core 22, so as to transport the clean water or physiological saline in the water inlet branch 64 to the locations where each first type of high-pressure jet nozzle 67 and each second type of high-pressure jet nozzle 68 are located, thereby realizing the jet cleaning of the permanent magnet rotor 21, assisting the permanent magnet rotor 21 to rotate idly appropriately, and completing the all-round cleaning of the surface of the permanent magnet rotor 21. The short-term idling will not cause large-scale heating of the magnetic suspension pump 2, nor will it affect the service life of the magnetic suspension pump 2. The first type of high-pressure jet nozzle 67 is used to jet clean water or physiological saline on the permanent magnet rotor 21 from the proximal intestine to the distal intestine direction, and the second type of high-pressure jet nozzle 68 is opposite to it, and is used to jet clean water or physiological saline on the permanent magnet rotor 21 from the distal intestine to the proximal intestine direction to achieve the purpose of jetting. Each first type of high-pressure jet nozzle 67 and each second type of high-pressure jet nozzle 68 are preferably aligned with the difficult-to-clean parts on the permanent magnet rotor 21 for jetting. In order to enhance the pressure of the clean water or physiological saline in the rotor cleaner, a pressure increasing pump can be preferably provided on the proximal intestinal tube 12 to pump the clean water or physiological saline into the cleaning branch pipe 61 through the proximal intestinal tube 1 to achieve the high-pressure cleaning of the permanent magnet rotor 21.

[0041] The present invention is described by way of preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of the present invention.

Claims

1. A direct-connected intestinal fluid reinfusion device, comprising a reinfusion tube (1), characterized in that: It further includes a magnetic suspension pump (2) located in the middle of the reinfusion tube (1); A receiving cavity (11) is provided in the middle of the reinfusion tube (1); The permanent magnet rotor (21) of the magnetic suspension pump (2) is located in the receiving cavity (11); The stator core (22) of the magnetic suspension pump (2) is located on the outer wall of the receiving cavity (11); The reinfusion tube (1) includes a proximal intestinal tube (12) and a distal intestinal tube (13); One end of the proximal intestinal tube (12) is provided with a proximal plum blossom head (121), the other end is connected to the liquid inlet of the magnetic suspension pump (2), one end of the distal intestinal tube (13) is connected to the liquid outlet of the magnetic suspension pump (2), and the other end is provided with a distal plum blossom head (131); It further includes a rotor cleaner for cleaning the permanent magnet rotor (21); A part of the pipeline of the rotor cleaner is fixed on one side of the stator core (22); The rotor cleaner includes a cleaning branch pipe (61), a water inlet branch (64), several water delivery branch pipes (65), and a first type of high-pressure injection nozzle (67) and a second type of high-pressure injection nozzle (68) connected to the water delivery branch pipes (65). A proximal valve (69) is provided on the proximal intestinal tube (12). One end of the cleaning branch pipe (61) is connected to the proximal intestinal tube (12) and is closer to the proximal intestine than the proximal valve (69). The water inlet branch (64) is an annular pipeline, which is distributed around the circumference of the magnetic suspension pump (2) and fixed at one end of the stator core (22). The water inlet ends of several water delivery branch pipes (65) are all connected to the annular water inlet branch (64), and several water delivery branch pipes (65) are fixed on the outside of the stator core (22).

2. The direct-connected intestinal fluid reinfusion device according to claim 1, characterized in that: It further includes a stoma leak-proof cover (3), and the stoma leak-proof cover (3) is sleeved on the proximal plum blossom head (121) and / or the distal plum blossom head (131); The stoma leak-proof cover (3) includes an annular silica gel disc (31), a bag body (32), and a connecting member (33). The head of the proximal plum blossom head (121) and / or the head of the distal plum blossom head (131) extends into the corresponding bag body (32). One end of the proximal intestinal tube (12) close to the proximal plum blossom head (121) and / or the other end of the distal intestinal tube (13) close to the distal plum blossom head (131) is fixedly connected to the side wall of the bag body (32) through the connecting member (33).

3. The direct-connected intestinal fluid reinfusion device according to claim 2, characterized in that: The connecting member (33) includes an annular clamping sleeve (331) and a circular clamping plate (332); An installation opening (321) for installing the connecting member (33) is provided on one side wall of the bag body (32). The annular collar (331) is fixed at the edge of the installation opening (321). An annular slot (322) is provided on the circular clamping plate (332). An annular protrusion (311) is provided on the inner wall of the annular collar (331). The annular slot (322) is in snap-fit with the annular protrusion (311).

4. The direct-connected intestinal juice re-infusion device according to claim 3, characterized in that: One end of the proximal intestinal tube (12) close to the proximal plum blossom head (121) and / or the other end of the distal intestinal tube (13) close to the distal plum blossom head (131) pass through the middle of the corresponding circular clamping plate (332) and are fixedly connected to the corresponding circular clamping plate (332).

5. The direct-connected intestinal juice re-infusion device according to claim 3, characterized in that: Both the proximal plum blossom head (121) and / or the distal plum blossom head (131) are configured as separable plum blossom heads, and a connecting tube (4) is provided at one end of the separable plum blossom head; A fixed cylinder (400) with a through hole is provided in the middle of each circular clamping plate (332). The diameter of the fixed cylinder (400) gradually increases from the first end far from the circular clamping plate (332) to the second end close to the circular clamping plate (332). The connecting tube (4) is sleeved on the fixed cylinder (400), and the connecting tube (4) is in interference fit with the fixed cylinder (400).

6. The direct-connected intestinal juice re-infusion device according to claim 3 or 4 or 5, characterized in that: An elastic retaining ring (312) is provided on one side wall of the annular collar (331); One side wall of the elastic retaining ring (312) close to the center of the annular collar (331) is configured as an inclined sealing ring surface (100). A beveled convex head (200) is provided at one end of the circular clamping plate (332). The inclined sealing ring surface (100) is in interference fit with the beveled convex head (200).

7. The direct-connected intestinal juice re-infusion device according to claim 1, characterized in that: A first flow sensor (211) is provided on one side of the proximal plum blossom head (121); and / or A second flow sensor (300) is provided on one side of the distal plum blossom head (131).

8. The direct-connected intestinal juice re-infusion device according to claim 5, characterized in that: A filtering cavity (5) is provided on the inner side wall of the circular clamping plate (332); At least one layer of filter membrane (51) is provided in the filtering cavity (5); The fixed cylinder (400) is fixed in the middle of the side wall of the filtering cavity (5).

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