A device for bile reinfusion in hepatobiliary and pancreatic surgery

Abstract

The application discloses a hepatobiliary and pancreatic surgical bile reinfusion device, and relates to the technical field of medical drainage, which comprises a reinfusion mechanism, the reinfusion mechanism comprises a peristaltic pump, a first electric valve is communicated with a liquid outlet end of a flow guide shell, a mixing bin is communicated with a liquid outlet end of the first electric valve, a multi-channel plate is arranged at the bottom of the interior of the mixing bin, two remaining liquid outlet ends of the three-way pipe are each communicated with a second electric valve, and a liquid outlet end of each second electric valve is communicated with a first connecting pipe; the peristaltic pump, the mixing bin, the multi-channel plate, the flow collecting pipe, the second connecting pipe, the three-way pipe, the second electric valve and the other first connecting pipe are matched, so that the filtered bile can be reinfused, the auxiliary materials in the medicine storage bin can be conveyed into the mixing bin and mixed with the bile through the cooperation of the electric control metering valve and the conveying pipe, so that the properties of the bile are improved, and finally the bile drained out can be collected, filtered, processed and reinfused.

Description

Technical Field

[0001] This invention relates to the field of medical drainage technology, specifically to a bile reinfusion device for hepatobiliary and pancreatic surgery. Background Technology

[0002] In the field of hepatobiliary and pancreatic surgery, factors such as bile duct stones, hepatobiliary and pancreatic tumors causing compression, and bile duct inflammation or stenosis can all lead to biliary obstruction and jaundice, manifesting as yellowing of the skin and sclera, dark urine, clay-colored stools, and itchy skin. Because biliary obstruction prevents bile from draining, increases biliary pressure, and allows bilirubin and bacteria to enter the bloodstream, it can cause liver damage, biliary tract infection, coagulation disorders, and even complications such as kidney and other organ dysfunction, and cholestatic cirrhosis. For cases with prolonged obstruction and significantly elevated bilirubin, biliary drainage is necessary to reduce jaundice, restore liver function, control biliary tract infection, and create conditions for subsequent surgery or anti-tumor treatment. While biliary drainage is crucial for improving liver function, the significant loss of bile can lead to electrolyte imbalances, affecting fat digestion and absorption, and even complications such as diarrhea and malnutrition. Therefore, it is clinically necessary to reinfuse the drained bile into the body to avoid these side effects.

[0003] There are generally two existing methods of bile reinfusion. The first method involves connecting an infusion set to a nasoenteric tube or jejunostomy tube to directly infuse filtered bile. However, this method requires a specialist to operate, and constant monitoring is necessary during the infusion process. If bile reflux occurs, the infusion needs to be repeated, which can cause discomfort to the patient. In addition, the tubing needs to be flushed during the infusion process to ensure that the tubing is unobstructed. This method is difficult to perform and time-consuming and labor-intensive. The second method involves collecting the drained bile, filtering it, and then allowing the patient to drink it directly. This method is usually used for patients who are not severely ill.

[0004] Current reintegration measures and equipment have the following shortcomings:

[0005] Existing bile reinfusion devices typically use drainage bags to collect the drained bile and then filter it separately. In this process, the bile is not easy to transfer and is easily contaminated. In addition, patients often find it difficult to drink the simply collected and filtered bile like a beverage, and often resist it due to factors such as taste and texture.

[0006] Therefore, we propose a bile reinfusion device for hepatobiliary and pancreatic surgery to address the problems mentioned in the background art. Summary of the Invention

[0007] The purpose of this invention is to provide a bile reinfusion device for hepatobiliary and pancreatic surgery. By setting a new reinfusion mechanism, the drained bile can be filtered and the filtered bile can enter the reinfusion channel, thereby automatically completing the bile reinfusion operation, avoiding its transfer and contamination, and greatly reducing manpower consumption, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a bile reinfusion device for hepatobiliary and pancreatic surgery, comprising a reinfusion mechanism, the reinfusion mechanism including a peristaltic pump, a flow guide shell disposed on one side of the peristaltic pump, an installation frame placed at the top opening of the flow guide shell, two filter screens fixed inside the installation frame, a shell cover placed at the top of the installation frame, a first electric valve connected to the outlet end of the flow guide shell, a mixing chamber connected to the outlet end of the first electric valve, a multi-channel plate disposed at the bottom of the mixing chamber, a sealing plate installed at the front opening of the mixing chamber, a manifold connecting multiple outlet ends of the multi-channel plate, a T-connector connected to the outlet end of the peristaltic pump, a second electric valve connected to the remaining two outlet ends of the T-connector, a first connecting pipe connected to the outlet end of each second electric valve, and a second connecting pipe connected to the inlet end of the peristaltic pump.

[0009] Preferably, the peristaltic pump has multiple drug storage chambers on one side, and the outlet of each drug storage chamber is connected to an electrically controlled metering valve. Each channel of the multi-channel plate is equipped with a baffle plate, and the outlet of each electrically controlled metering valve is connected to a delivery pipe. The top of the mounting frame, the cover, and the guide shell are installed together by screws. An integrated sensor is threadedly connected to the detection port on the outer wall of the mixing chamber, and multiple detection ends of the integrated sensor are located inside the mixing chamber.

[0010] Preferably, one end of each of the plurality of turbulence plates is fixed inside the mixing chamber, each outlet end of the multi-channel plate is fixedly penetrated through the surface of the sealing plate, the outlet end of one of the first connecting pipes is connected to the return end at the top of the mixing chamber, the inlet end of the second connecting pipe is connected to the outlet end of the manifold, the plurality of drug storage chambers and the plurality of electrically controlled metering valves are located in front of the guide shell, and the outlet end of each of the conveying pipes is connected to each inlet end at the top of the mixing chamber.

[0011] Preferably, the liquid inlet end of the shell cover is connected to a first quick connector, the liquid inlet end of the first quick connector is fitted with a rubber sleeve, and one side of the peristaltic pump is in contact with an L-shaped plate.

[0012] Preferably, a placement box is fixed to the upper side of the L-shaped plate, a box cover is inserted into the top of the placement box, and multiple support rods are fixed to the upper side of the L-shaped plate near the edge.

[0013] Preferably, a perforated plate is fixed between the top ends of the plurality of support rods, the bottom of the perforated plate is fixed to the top of the L-shaped plate, and the plurality of drug storage compartments are respectively fixedly sleeved inside each through hole of the perforated plate.

[0014] Preferably, a support frame is fixed on the upper side of the L-shaped plate near the edge, and the top of the support frame is fixed to the outer wall of the guide shell on the side near the guide shell.

[0015] Preferably, two rectangular blocks are fixed on the side of the flow guide shell near the peristaltic pump, and both rectangular blocks are fixed on the surface of the L-shaped plate. An installation plate is installed in the groove on one side of the peristaltic pump.

[0016] Preferably, a second quick connector is placed in the groove at the top of the placement box, and the inlet end of the second quick connector is connected to the outlet end of another first connecting tube. The placement box and the box cover are used to protect the second quick connector.

[0017] Preferably, the L-shaped plate has a pre-set slot on the side near the mounting plate, and each slot has a locking block inserted inside, with multiple locking blocks fixed to the surface of the mounting plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In this invention, the bile delivered can be filtered by the combination of the flow guide shell, the mounting frame and two filter screens. The filtered bile can be returned by the combination of the peristaltic pump, the mixing chamber, the multi-channel plate, the manifold, the second connecting pipe, the tee pipe, the second electric valve and another first connecting pipe.

[0020] 2. In this invention, by using an electronically controlled metering valve and a delivery pipe, the excipients inside the drug storage chamber can be transported to the mixing chamber and mixed with bile to improve the properties of the bile. By using a multi-channel plate, a baffle plate, a manifold, a first connecting pipe, a second connecting pipe, a three-way pipe, a second electric valve, and a peristaltic pump, the bile and excipients inside the space formed by the sealing plate and the mixing chamber can be fully mixed.

[0021] 3. In this invention, the first quick connector and the second connector work together to enable the drainage tube and reinfusion tube in the hepatobiliary and pancreatic surgery bile drainage case to be quickly connected to the reinfusion device, so as to ensure that the reinfused bile enters the patient's digestive tract smoothly and participates in digestion and absorption, avoiding bile loss caused by external drainage. The slot, the block and the mounting plate work together to enable the L-shaped plate to be quickly installed and removed on the peristaltic pump. Attached Figure Description

[0022] Figure 1 This is a frontal view structural diagram of a bile reinfusion device for hepatobiliary and pancreatic surgery according to the present invention;

[0023] Figure 2 This is a side-view perspective view of a bile reinfusion device for hepatobiliary and pancreatic surgery according to the present invention.

[0024] Figure 3 This is a partial exploded view of a bile reinfusion device for hepatobiliary and pancreatic surgery according to the present invention.

[0025] Figure 4 This is a partial sectional perspective view of a bile reinfusion device for hepatobiliary and pancreatic surgery according to the present invention.

[0026] Figure 5 This is a partial sectional perspective view of the bile reinfusion mechanism of a bile reinfusion device for hepatobiliary and pancreatic surgery according to the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the mounting plate and locking block of a bile reinfusion device for hepatobiliary and pancreatic surgery according to the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the multi-channel plate, the baffle plate, and the sealing plate of the bile reinfusion device for hepatobiliary and pancreatic surgery according to the present invention.

[0029] Figure 8 This is a perspective view of the baffle plate of a bile reinfusion device for hepatobiliary and pancreatic surgery according to the present invention.

[0030] In the diagram: 1. Return mechanism; 101. Peristaltic pump; 102. Guide shell; 103. Mounting frame; 104. Filter screen; 105. Shell cover; 106. First electric valve; 107. Mixing chamber; 108. Drug storage chamber; 109. Electrically controlled metering valve; 110. Multi-channel plate; 111. Baffle plate; 112. Sealing plate; 113. Delivery pipe; 114. Manifold; 115. T-connector; 116. Second electric valve; 117. First connecting pipe; 118. Second connecting pipe; 119. Integrated sensor; 2. First quick connector; 3. Rubber sleeve; 4. Placement box; 5. Box cover; 6. Support rod; 7. Perforated plate; 8. Support frame; 9. Rectangular block; 10. L-shaped plate; 11. Mounting plate; 12. Second quick connector; 13. Slot; 14. Locking block. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figures 1-8As shown, the present invention provides a technical solution: a bile reinfusion device for hepatobiliary and pancreatic surgery, including a reinfusion mechanism 1. The reinfusion mechanism 1 includes a peristaltic pump 101, a flow guide shell 102 is provided on one side of the peristaltic pump 101, a mounting frame 103 is placed at the top opening of the flow guide shell 102, two filter screens 104 are fixed inside the mounting frame 103, a shell cover 105 is placed on the top of the mounting frame 103, the liquid outlet end of the flow guide shell 102 is connected to a first electric valve 106, the liquid outlet end of the first electric valve 106 is connected to a mixing chamber 107, a multi-channel plate 110 is provided at the bottom of the mixing chamber 107, and the mixing chamber... A sealing plate 112 is installed at the front opening of 107. Multiple outlets of the multi-channel plate 110 are connected by a manifold 114. The outlet of the peristaltic pump 101 is connected to a three-way pipe 115. The remaining two outlets of the three-way pipe 115 are each connected to a second electric valve 116. Each outlet of the second electric valve 116 is connected to a first connecting pipe 117. The inlet of the peristaltic pump 101 is connected to a second connecting pipe 118. The tops of the mounting frame 103, the cover 105, and the guide shell 102 are installed together with screws. Each outlet of the multi-channel plate 110 is fixedly inserted through the surface of the sealing plate 112. The inlet end of the second connecting pipe 118 is connected to the outlet end of the manifold 114. The inlet end of the cover 105 is connected to the first quick connector 2. The inlet end of the first quick connector 2 is fitted with a rubber sleeve 3. One side of the peristaltic pump 101 contacts an L-shaped plate 10. A placement box 4 is fixed on the upper side of the L-shaped plate 10. A box cover 5 is inserted into the top of the placement box 4. Multiple support rods 6 are fixed near the edge of the upper side of the L-shaped plate 10. A support frame 8 is fixed near the edge of the upper side of the L-shaped plate 10. The top of the support frame 8 is fixed to the outer wall of the guide shell 102 on the side near the guide shell 102. Two rectangular blocks 9 are fixed on one side near the peristaltic pump 101. Both rectangular blocks 9 are fixed on the surface of the L-shaped plate 10. An installation plate 11 is installed in the groove on one side of the peristaltic pump 101. A second quick connector 12 is placed in the groove at the top of the placement box 4. The inlet end of the second quick connector 12 is connected to the outlet end of another first connecting pipe 117. The placement box 4 and the box cover 5 are used to protect the second quick connector 12. A slot 13 is preset on the side of the L-shaped plate 10 near the installation plate 11. A locking block 14 is inserted into the inside of each slot 13. Multiple locking blocks 14 are fixed on the surface of the installation plate 11.

[0033] In this embodiment, the selected cases are those in which a drainage tube made of medical sterile material has been inserted into the patient's bile duct (such as the common bile duct or common hepatic duct) via interventional or endoscopic surgery as a channel for external bile drainage; then a gastric tube or nasojejunal tube is inserted into the patient's digestive tract as a return tube. In use, first move the entire reinfusion device to the desired location. Then, remove the rubber sleeve 3 from the inlet end of the first quick connector 2. After removing the rubber sleeve 3, directly connect the outlet end of the drainage tube to the inlet end of the first quick connector 2. Next, remove the box cover 5 and take out the second quick connector 12 inside the placement box 4. Then, connect the inlet end of the reinfusion tube to the second quick connector 12. Finally, remove the sterile breathing valve on top of each drug storage chamber 108 and inject conditioning fluid (different excipients) into each drug storage chamber 108. After injecting the conditioning fluid, reinstall the sterile breathing valve in its original position. At the same time, connect the peristaltic pump 101 to the power supply equipment and then start it. Next, set the threshold values ​​(including turbidity, pH, etc.). After the reinfusion device is installed, the bile accumulated in the patient's body is drawn out through the drainage tube, the first quick connector 2, and the shell cover 105 and guided to the guide shell 102. When the bile passes through the upper filter 104, larger impurities in the bile (such as blood clots, necrotic tissue debris, and flocculent precipitates) will be filtered out. Then, the bile that has completed the initial filtration will come into contact with the lower filter 104. When the bile that has completed the initial filtration passes through the lower filter 104, the remaining impurities in the bile will be filtered out. Then, the purified bile will be stored inside the guide shell 102. In other words, this method can be used to complete the filtration and purification of the drained bile.

[0034] Example 2: According to Figures 1-5 , Figure 7 and Figure 8As shown, a flow guide shell 102 is provided on one side of the peristaltic pump 101. The liquid outlet of the flow guide shell 102 is connected to a first electric valve 106. The liquid outlet of the first electric valve 106 is connected to a mixing chamber 107. Multiple drug storage chambers 108 are provided on one side of the peristaltic pump 101. The liquid outlet of each drug storage chamber 108 is connected to an electrically controlled metering valve 109. A multi-channel plate 110 is provided at the bottom of the mixing chamber 107. Each channel of the multi-channel plate 110 is equipped with a baffle plate 111. The positive direction of the mixing chamber 107... A sealing plate 112 is installed at the opening. Each electrically controlled metering valve 109 has its outlet end connected to a delivery pipe 113. Multiple outlet ends of the multi-channel plate 110 are connected by a manifold 114. One end of each of the multiple baffles 111 is fixed inside the mixing chamber 107. Each outlet end of the multi-channel plate 110 is fixedly connected through the surface of the sealing plate 112. The outlet end of the peristaltic pump 101 is connected to a three-way pipe 115. The remaining two outlet ends of the three-way pipe 115 are connected to second electric valves 116. Each second... The outlet of each electric valve 116 is connected to a first connecting pipe 117. One outlet of the first connecting pipe 117 is connected to the return end at the top of the mixing chamber 107. The inlet of the peristaltic pump 101 is connected to a second connecting pipe 118. An integrated sensor 119 is threadedly connected to the detection port on the outer wall of the mixing chamber 107. Multiple detection ends of the integrated sensor 119 are located inside the mixing chamber 107. The inlet of the second connecting pipe 118 is connected to the outlet of the manifold 114. Multiple drug storage chambers 10... 8 and multiple electrically controlled metering valves 109 are located in front of the guide shell 102. The liquid outlet of each delivery pipe 113 is connected to each liquid inlet at the top of the mixing chamber 107. One side of the peristaltic pump 101 is in contact with an L-shaped plate 10. Multiple support rods 6 are fixed on the upper side of the L-shaped plate 10 near the edge. A perforated plate 7 is fixed between the tops of the multiple support rods 6. The bottom of the perforated plate 7 is fixed to the top of the L-shaped plate 10. Multiple drug storage chambers 108 are fixedly fitted inside each through hole on the perforated plate 7.

[0035] In this embodiment, when the bile drainage from the patient's body is complete, the valve of the first electric valve 106 is opened. The bile stored inside the guide shell 102 is then transported through the opened valve 106 to the space composed of the mixing chamber 107 and the sealing plate 112. When all the bile inside the guide shell 102 has been released, the valve of the first electric valve 106 is closed. Then, the integrated sensor 119 is opened. The integrated sensor 119 detects the turbidity, pH value, viscosity, and bacterial concentration data in the bile. Subsequently, the MCU main control board in the peristaltic pump 101 coordinates with various pre-set thresholds. The opening and closing times of each electrically controlled metering valve 109 are calculated. When an electrically controlled metering valve 109 is activated, the regulating liquid inside the drug storage chamber 108 is delivered to the inside of the delivery pipe 113 through the open valve 109, and then collects in the space composed of the mixing chamber 107 and the sealing plate 112. After all the electrically controlled metering valves 109 are closed in sequence, the peristaltic pump 101 and one of the second electric valves 116 are activated. The peristaltic pump 101 then works through the second connecting pipe 118, the manifold 114 and the multi-channel plate 110 to draw away the mixed liquid composed of the regulating liquid and bile, and then through the three-way pipe 115. The second electric valve 116, which opens the valve, cooperates with one of the first connecting pipes 117 to transport the mixture back into the space formed by the mixing chamber 107 and the sealing plate 112 for a new circulation. When the mixed liquid passes through the multi-channel plate 110, the baffle 111 helps to fully mix the various liquids. When the data detected by the integrated sensor 119 is within the threshold range preset by the MCU main control board in the peristaltic pump 101, one of the second electric valves 116 will close and the other will open. At this time, the peristaltic pump 101, which continues to start, will pump the mixed liquid through the agitator. The second electric valve 116, which opens the valve, delivers the fluid to the inside of another first connecting pipe 117. Then, through the second quick connector 12 (with a built-in one-way valve) and the return pipe, the fluid is returned to the patient's gastric tube / nasal intestinal tube, entering the digestive tract to participate in digestion and absorption, replacing the bile lost through external drainage. When the mixture of regulating fluid and bile has been returned to the patient's body, the other second electric valve 116 and the peristaltic pump 101 are closed. The return device is then disconnected from the drainage pipe and the return pipe. Subsequent pipe removal or sealing can then be performed. This method can improve the condition of purified bile and also allows for contamination-free transfer.

[0036] The overall effect and working principle of the device are as follows: First, the entire reinfusion device is moved to the place where it is needed. Then, a drainage tube made of medical sterile material is inserted into the patient's bile duct (such as the common bile duct or common hepatic duct) through intervention or endoscopic surgery as a channel for external bile drainage. After that, a gastric tube or nasojejunal tube is inserted into the patient's digestive tract as a reinfusion tube. Next, remove the rubber sleeve 3 from the inlet end of the first quick connector 2. After removing the rubber sleeve 3, connect the outlet end of the drainage tube directly to the inlet end of the first quick connector 2. Then, remove the box cover 5 and take out the second quick connector 12 inside the placement box 4. Then, connect the inlet end of the return tube to the second quick connector 12. Finally, remove the sterile breathing valve on the top of each drug storage chamber 108 and inject conditioning liquid (different excipients) into each drug storage chamber 108. After injecting the conditioning liquid, reinstall the sterile breathing valve in its original position. At the same time, connect the peristaltic pump 101 to the power supply equipment, start it, and set the threshold (including turbidity, pH value, etc.).

[0037] When the reinfusion device is installed, the bile accumulated in the patient's body is drawn out through the drainage tube, the first quick connector 2, and the shell cover 105, and guided to the guide shell 102. When the bile passes through the upper filter 104, larger impurities in the bile (such as blood clots, necrotic tissue debris, and flocculent precipitates) will be filtered out. After the initial filtration, the bile will come into contact with the lower filter 104. When the bile that has completed the initial filtration passes through the lower filter 104, the remaining impurities in the bile will be filtered out. Then, the purified bile will be stored inside the guide shell 102.

[0038] When the bile drainage from the patient's body is complete, the valve of the first electric valve 106 is opened. The bile stored inside the guide shell 102 (after purification) is then transported through the opened valve 106 into the space consisting of the mixing chamber 107 and the sealing plate 112. When all the bile inside the guide shell 102 has been released, the valve of the first electric valve 106 is closed. Then, the integrated sensor 119 is opened. The integrated sensor 119 detects the turbidity, pH value, viscosity, and bacterial concentration data in the bile. Subsequently, the MCU main control board in the peristaltic pump 101 will... By setting various thresholds, the opening and closing times of each electronically controlled metering valve 109 are calculated. When an electronically controlled metering valve 109 is activated, the regulating fluid inside the drug storage chamber 108 is delivered to the inside of the delivery pipe 113 through the opened electronically controlled metering valve 109, and then collects in the space composed of the mixing chamber 107 and the sealing plate 112. After all the electronically controlled metering valves 109 are closed in sequence, the peristaltic pump 101 and one of the second electric valves 116 are activated. At this time, the peristaltic pump 101, through the second connecting pipe 118, the manifold 114 and the multi-channel plate 110, delivers the mixture of regulating fluid and bile. The mixed liquid is drawn away and then transported back into the space composed of the mixing chamber 107 and the sealing plate 112 through the three-way pipe 115, the second electric valve 116 (which opens the valve), and one of the first connecting pipes 117, for a new circulation. When the mixed liquid passes through the multi-channel plate 110, the baffle 111 allows the various liquids to mix thoroughly. When the data detected by the integrated sensor 119 is within the threshold range preset by the MCU main control board in the peristaltic pump 101, one of the second electric valves 116 will close and the other will open. At this point, the peristaltic pump 101, which continues to operate, will pump the mixed liquid into the inside of another first connecting pipe 117 through the second electric valve 116, which opens the valve. Then, through the second quick connector 12 (with built-in one-way valve) and the return pipe, it will be returned to the patient's nasal intestinal tract (biliary tract) to participate in digestion and absorption, replacing the bile lost through external drainage. When the mixed liquid composed of regulating fluid and bile has been returned to the patient's body, the other second electric valve 116 and the peristaltic pump 101 will be closed. Then, the return device will be disconnected from the drainage pipe and the return pipe. After that, the subsequent tubing removal or sealing can be performed.

[0039] The wiring diagram between the first electric valve 106, the electrically controlled metering valve 109, the second electric valve 116, the integrated sensor 119 (which integrates a turbidity sensor, a pH sensor, a microbial sensor, and a viscosity sensor), and the MCU main control board in the peristaltic pump 101 is a publicly disclosed technology in this field. Its model can be selected according to the actual situation, so it will not be described in detail here.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bile reinfusion device for hepatobiliary and pancreatic surgery, characterized in that: The system includes a return pump (1), which includes a peristaltic pump (101). A guide shell (102) is provided on one side of the peristaltic pump (101). A mounting frame (103) is placed at the top opening of the guide shell (102). Two filter screens (104) are fixed inside the mounting frame (103). A shell cover (105) is placed on the top of the mounting frame (103). The liquid outlet end of the guide shell (102) is connected to a first electric valve (106). The liquid outlet end of the first electric valve (106) is connected to a mixing chamber (107). The bottom of the mixing chamber (107) is provided with a multi-channel plate (110). A sealing plate (112) is installed at the front opening of the mixing chamber (107). A manifold (114) is connected between multiple liquid outlets of the multi-channel plate (110). A three-way pipe (115) is connected to the liquid outlet of the peristaltic pump (101). The remaining two liquid outlets of the three-way pipe (115) are connected to a second electric valve (116). The liquid outlet of each second electric valve (116) is connected to a first connecting pipe (117). The liquid inlet of the peristaltic pump (101) is connected to a second connecting pipe (118).

2. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 1, characterized in that: The peristaltic pump (101) has multiple drug storage chambers (108) on one side. Each drug storage chamber (108) has an outlet end connected to an electronically controlled metering valve (109). Each channel of the multi-channel plate (110) has a baffle plate (111) inside. Each electronically controlled metering valve (109) has an outlet end connected to a delivery pipe (113). The tops of the mounting frame (103), the shell cover (105), and the guide shell (102) are installed by screws. The detection port on the outer wall of the mixing chamber (107) is threaded with an integrated sensor (119). Multiple detection ends of the integrated sensor (119) are located inside the mixing chamber (107).

3. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 2, characterized in that: One end of each of the multiple baffles (111) is fixed inside the mixing chamber (107). Each outlet end of the multi-channel plate (110) is fixed through the surface of the sealing plate (112). The outlet end of one of the first connecting pipes (117) is connected to the return end at the top of the mixing chamber (107). The inlet end of the second connecting pipe (118) is connected to the outlet end of the manifold (114). Multiple drug storage chambers (108) and multiple electrically controlled metering valves (109) are located in front of the guide shell (102). The outlet end of each of the delivery pipes (113) is connected to each inlet end at the top of the mixing chamber (107).

4. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 2, characterized in that: The liquid inlet end of the cover (105) is connected to a first quick connector (2), and the liquid inlet end of the first quick connector (2) is fitted with a rubber sleeve (3). One side of the peristaltic pump (101) is in contact with an L-shaped plate (10).

5. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 4, characterized in that: A placement box (4) is fixed on the upper side of the L-shaped plate (10), and a box cover (5) is inserted into the top of the placement box (4). Multiple support rods (6) are fixed on the upper side of the L-shaped plate (10) near the edge.

6. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 5, characterized in that: A perforated plate (7) is fixed between the top ends of the multiple support rods (6), the bottom of the perforated plate (7) is fixed to the top of the L-shaped plate (10), and the multiple drug storage chambers (108) are respectively fixedly sleeved inside each through hole on the perforated plate (7).

7. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 4, characterized in that: A support frame (8) is fixed on the upper side of the L-shaped plate (10) near the edge. The top of the support frame (8) is fixed to the outer wall of the guide shell (102) on the side near the guide shell (102).

8. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 4, characterized in that: Two rectangular blocks (9) are fixed on the side of the flow guide shell (102) near the peristaltic pump (101). Both rectangular blocks (9) are fixed on the surface of the L-shaped plate (10). An installation plate (11) is installed in the groove on one side of the peristaltic pump (101).

9. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 5, characterized in that: The second quick connector (12) is placed in the groove at the top of the placement box (4). The inlet end of the second quick connector (12) is connected to the outlet end of another first connecting pipe (117). The placement box (4) and the box cover (5) are used to protect the second quick connector (12).

10. The hepatobiliary and pancreatic surgical bile reinfusion device according to claim 8, characterized in that: The L-shaped plate (10) has a slot (13) on the side near the mounting plate (11). Each slot (13) has a card block (14) inserted inside, and multiple card blocks (14) are fixed to the surface of the mounting plate (11).

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