Intraoperative bile external drainage device

Abstract

The utility model discloses an intraoperative bile external drainage device, the intraoperative bile external drainage device comprises a drainage tube and a tube fixing assembly, the tube fixing assembly comprises a tube fixing bag, the tube fixing bag comprises an inner supporting part and an outer clamping part, a clamping groove is formed between the inner supporting part and the outer clamping part, and the inner supporting part and the outer clamping part are arranged in the tube fixing bag. The tube fixing bag can be inserted into the clamping groove through the common bile duct when not inflated, the outer clamping part is arranged on the peripheral side of the common bile duct, and at least part of the inner supporting part and part of the drainage tube are connected with the common bile duct in the mode that the inner supporting part and part of the drainage tube are integrally inserted into the pipeline. The tube fixing bag can be inflated to reduce the clamping groove in the mode that the inner supporting part and the outer clamping part both expand, so that the inner supporting part and the outer clamping part are used for applying pressure to the tube wall of the common bile duct in the clamping groove internally and externally at the same time, and the drainage tube is connected to the common bile duct in a sealed mode. Therefore, the inner wall of the common bile duct is effectively prevented from being damaged or even exploded due to excessive compression.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage tubes, in particular to an intraoperative bile external drainage device. Background Art

[0002] In previous pancreatoduodenectomy operations, some doctors allowed bile to flow out from the severed common bile duct and into the abdominal cavity, resulting in bile contamination of the abdominal cavity and increasing the risk of surgical site infection, especially for patients with existing biliary tract infection problems; some other doctors chose to clamp the common hepatic duct, but this caused bile stasis in the intrahepatic bile ducts, leading to a certain degree of liver function damage. Therefore, to avoid the above situations, a drainage tube is currently used to guide the bile inside the liver and gallbladder to be discharged outside the body.

[0003] When the existing drainage tube is in use, to prevent the drainage tube from slipping off, an airbag is usually provided on the drainage tube. The part of the drainage tube equipped with the airbag is inserted into the common bile duct, and by inflating the airbag, the drainage tube is firmly connected to the common bile duct by the way that the inflated airbag abuts against the inner wall of the common bile duct. The degree of inflation of the airbag is not easy to control. If the degree of inflation of the airbag is insufficient, there may be a gap between the airbag and the inner wall of the common bile duct, resulting in bile inside the liver and gallbladder flowing out from the outside of the drainage tube; if the airbag is over-inflated, the pressure on the inner wall of the common bile duct is too large, and the common bile duct may be damaged or even burst. Summary of the Utility Model

[0004] One advantage of the utility model is to provide an intraoperative bile external drainage device. The utility model can guide the bile inside the liver and gallbladder to be discharged, so as to avoid the situation of bile contamination of the abdominal cavity after the common bile duct is severed, and compared with the treatment method of clamping the common bile duct, it avoids the situation of affecting liver function due to bile stasis.

[0005] One advantage of the utility model is to provide an intraoperative bile external drainage device. The utility model seals the connection between the drainage tube and the common bile duct by internally supporting the common bile duct, so as to prevent bile from flowing out of the common bile duct outside the drainage tube and ensure that the bile can be effectively drained.

[0006] One advantage of the utility model is to provide an intraoperative bile external drainage device. The utility model clamps the wall of the common bile duct by means of internal support and external clamping, so as to apply an appropriate pressure to the wall of the common bile duct and reduce bleeding. Compared with the prior art, it effectively avoids the inner wall of the common bile duct from being over-pressed and damaged or even burst.

[0007] One advantage of the utility model is to provide an intraoperative bile external drainage device. The utility model simultaneously clamps the wall of the common bile duct by means of internal support and external clamping, increases the firmness of the connection between the drainage tube and the common bile duct, and effectively avoids the occurrence of loosening of the connection.

[0008] One advantage of the present utility model is to provide an intraoperative bile external drainage device. The present utility model clamps the wall of the common bile duct by inflating and deflating to adapt to the size of the common bile duct.

[0009] To achieve at least one of the above advantages of the present utility model, the present utility model provides an intraoperative bile external drainage device, which is installed on the common bile duct for guiding the bile in the liver and gallbladder to drain out. The intraoperative bile external drainage device includes:

[0010] A drainage tube, the drainage tube has a drainage channel and at least one opening communicating with the drainage channel. The drainage tube is inserted into the common bile duct in such a way that the drainage channel communicates with the common bile duct through the opening.

[0011] A tube fixing assembly, the tube fixing assembly includes a tube fixing bladder. The tube fixing bladder is located on the periphery of the drainage tube and at one end of the drainage tube close to the opening. The tube fixing bladder includes an inner supporting part and an outer clamping part. The inner supporting part and the outer clamping part each form an air cavity. An clamping groove is formed between the inner supporting part and the outer clamping part. Both the inner supporting part and the outer clamping part can undergo elastic deformation to expand or contract when the air cavity is inflated or deflated to adjust the size of the clamping groove. When the tube fixing bladder is not inflated, the common bile duct can be inserted into the clamping groove, the outer clamping part is placed on the periphery of the common bile duct, and at least part of the inner supporting part and part of the drainage tube are integrally inserted into the duct to connect with the common bile duct. The tube fixing bladder can be inflated to reduce the clamping groove by the expansion of both the inner supporting part and the outer clamping part, so as to use the inner supporting part and the outer clamping part to simultaneously apply internal and external pressure to the wall of the common bile duct in the clamping groove to seal and connect the drainage tube to the common bile duct.

[0012] According to an embodiment of the present utility model, when the tube fixing bladder is not inflated and the common bile duct is inserted into the clamping groove so that the inner supporting part is completely inserted into the common bile duct, the tube fixing bladder can be inflated to cause both the inner supporting part and the outer clamping part to expand to clamp the inner wall of the common bile duct both in the radial direction of the drainage tube and in the direction parallel to the axial direction of the drainage tube.

[0013] According to an embodiment of the present utility model, the tube fixing bladder is installed on the peripheral wall of the drainage tube. The stiffness of the side wall of the inner supporting part forming the clamping groove is less than the stiffness of the side wall close to the drainage tube, and the stiffness of the side wall of the outer clamping part forming the clamping groove is less than the stiffness of the side wall far from the drainage tube. When the drainage tube is installed on the common bile duct through the inflated tube fixing bladder, the inner supporting part and the outer clamping part expand towards each other to clamp the wall of the common bile duct in the clamping groove.

[0014] According to an embodiment of the present utility model, the tube fixing capsule is sleeved on the drainage tube. When the drainage tube is installed in the common bile duct through the inflated tube fixing capsule, the inner supporting part expands towards the drainage tube to be hermetically connected with the drainage tube, and the inner supporting part and the outer clamping part expand towards each other to clamp the tube wall of the common bile duct in the clamping groove.

[0015] According to an embodiment of the present utility model, the tube fixing assembly further includes a trachea, the trachea has an air passage and an air port communicated with the air passage, one end of the trachea far from the air port is connected with one end of the tube fixing capsule close to the drainage tube, the air cavity is communicated with the air passage, and the air passage can guide the gas introduced from the air port to the air cavity or guide the gas in the air cavity to the air port.

[0016] According to an embodiment of the present utility model, the air port is formed on one end wall of the trachea far from the tube fixing capsule, and the drainage tube and the trachea are designed in a split manner.

[0017] According to an embodiment of the present utility model, the drainage tube is installed on the trachea in such a way that part of it is placed in the air passage and both ends extend out of both ends of the air passage, the air port is formed on the side part of the trachea, and the gas can be introduced into the air cavity or guided to the air port through the gap between the inner wall of the air passage and the drainage tube.

[0018] According to an embodiment of the present utility model, the intraoperative bile external drainage device further includes a collecting member, the collecting member is installed on one end of the drainage tube far from the through port and is communicated with the drainage tube, and the collecting member is used for collecting the bile drained out by the drainage tube.

[0019] According to an embodiment of the present utility model, at least part of the side wall of the collecting member is transparent.

[0020] According to an embodiment of the present utility model, the transparent area of the side wall of the collecting member forms a measuring structure, the measuring structure extends between the top end and the bottom end of the collecting member, and the measuring structure is used for measuring the amount of bile in the collecting member. Description of the Drawings

[0021] Figure 1 Shows the structural scenario diagram of the intraoperative bile external drainage device of the present utility model.

[0022] Figure 2 Shows the structural schematic diagram of the intraoperative bile external drainage device of the present utility model.

[0023] Figure 3 Shows the structural sectional view of the intraoperative bile external drainage device of the present utility model.

[0024] Figure 4 ShowsFigure 3 Enlarged view of the local structure Specific implementation mode

[0025] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present utility model can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present utility model.

[0026] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0027] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as limiting the quantity.

[0028] Refer to Figures 1 to 4 , the intraoperative bile external drainage device according to a preferred embodiment of the present utility model will be elaborated in detail below. The intraoperative bile external drainage device can be installed in the common bile duct to guide the bile in the liver and gallbladder to drain out.

[0029] The intraoperative bile external drainage device includes a drainage tube 10. The drainage tube 10 has a drainage channel 101 and at least one through port 102 communicating with the drainage channel 101. The drainage tube 10 is inserted into the common bile duct in such a way that the drainage channel 101 communicates with the common bile duct through the through port 102. The bile in the liver and gallbladder flows through the through port 102 and is discharged through the drainage channel 101 to avoid the situation of bile contaminating the abdominal cavity after the common bile duct is transected, and compared with the treatment method of clamping the common bile duct, it avoids the situation of affecting liver function due to bile stasis.

[0030] Preferably, there are three through ports 102. One of the through ports 102 is formed on the end wall of the drainage tube 10, and the other two through ports 102 are respectively formed on two opposite side walls of the drainage tube 10, so that the bile can be fully drained and the drainage efficiency of the bile can be improved.

[0031] The intraoperative bile external drainage device includes a tube fixing assembly 20, and the tube fixing assembly 20 includes a tube fixing bladder 21. The tube fixing bladder 21 is located on the circumferential side of the drainage tube 10 and at one end of the drainage tube 10 close to the through port 102. The tube fixing bladder 21 includes an inner supporting part 211 and an outer clamping part 212. Each of the inner supporting part 211 and the outer clamping part 212 forms an air chamber 2101, and a clamping groove 2102 is formed between the inner supporting part 211 and the outer clamping part 212. Both the inner supporting part 211 and the outer clamping part 212 can undergo elastic deformation to expand or contract when the air chamber 2101 is inflated or deflated, so as to adjust the size of the clamping groove 2102.

[0032] When the tube fixing bladder 21 is not inflated, the common bile duct can be inserted into the clamping groove 2102, the outer clamping part 212 is placed on the circumferential side of the common bile duct, and at least part of the inner supporting part 211 and part of the drainage tube 10 are integrally inserted into the duct, so that the tube fixing bladder 21 is connected to the common bile duct. The tube fixing bladder 21 can be inflated to reduce the clamping groove 2102 by the way that both the inner supporting part 211 and the outer clamping part 212 expand, so as to use the inner supporting part 211 and the outer clamping part 212 to simultaneously apply internal and external pressure to the tube wall of the common bile duct in the clamping groove 2102, so as to hermetically connect the drainage tube 10 to the common bile duct.

[0033] In this process, the inflated inner supporting part 211 hermetically connects the drainage tube 10 to the common bile duct to prevent bile from flowing out of the common bile duct outside the drainage tube 10 and ensure that bile can be effectively drained; the inflated outer clamping part 212 clamps the common bile duct on its circumferential side to cooperate with the inner supporting part 211 to apply appropriate pressure to the tube wall of the common bile duct and reduce bleeding. Compared with the prior art, when the common bile duct is only under the pressure of the inflated inner supporting part 211, the situation that the common bile duct is damaged or even burst due to excessive pressure is effectively avoided. In addition, through the synergistic effect of the inner supporting part 211 and the outer clamping part 212, the firmness of the connection between the drainage tube 10 and the common bile duct is increased, and the situation of loose connection is effectively avoided. In addition, by using the method of inflating and deflating, the tube fixing bladder 21 adapts to the size of the common bile duct, and has high flexibility in use.

[0034] Preferably, the tube fixing bladder 21 is made of rubber material.

[0035] In one embodiment, when the tube fixing bladder 21 is not inflated and the common bile duct is inserted into the clamping groove 2102 so that part of the inner supporting part 211 is inserted into the common bile duct, by inflating the tube fixing bladder 21, both the inner supporting part 211 and the outer clamping part 212 expand to clamp the inner wall of the common bile duct internally and externally in the radial direction of the drainage tube 10.

[0036] Preferably, when the fixed tube bladder 21 is not inflated and the common bile duct is inserted into the clamping groove 2102 so that the inner support portion 211 is completely inserted into the common bile duct, by inflating the fixed tube bladder 21, the inner support portion 211 and the outer clamping portion 212 both expand to clamp the inner wall of the common bile duct both radially of the drainage tube 10 and in a direction parallel to the axial direction of the drainage tube 10. During this process, the common bile duct is clamped in two directions to improve the sealing performance and firmness of the connection between the drainage tube 10 and the common bile duct.

[0037] In one embodiment, the fixed tube bladder 21 is installed on the peripheral wall of the drainage tube 10. The stiffness of the side wall of the inner support portion 211 forming the clamping groove 2102 is less than the stiffness of the side wall thereof close to the drainage tube 10, and the stiffness of the side wall of the outer clamping portion 212 forming the clamping groove 2102 is less than the stiffness of the side wall thereof far from the drainage tube 10. When the drainage tube 10 is installed on the common bile duct through the inflated fixed tube bladder 21, the inner support portion 211 and the outer clamping portion 212 expand towards each other to clamp the tube wall of the common bile duct in the clamping groove 2102, so as to hermetically connect the drainage tube 10 to the common bile duct while increasing the firmness of the connection.

[0038] Preferably, the fixed tube bladder 21 is sleeved on the drainage tube 10. When the drainage tube 10 is installed on the common bile duct through the inflated fixed tube bladder 21, the inner support portion 211 expands towards the drainage tube 10 to be hermetically connected to the drainage tube 10, and the inner support portion 211 and the outer clamping portion 212 expand towards each other to clamp the tube wall of the common bile duct in the clamping groove 2102, so as to hermetically connect the drainage tube 10 to the common bile duct while increasing the firmness of the connection.

[0039] The fixed tube assembly 20 further includes an air tube 22. The air tube 22 has an air passage 2201 and an air port 2202 communicated with the air passage 2201. One end of the air tube 22 far from the air port 2202 is connected to one end of the fixed tube bladder 21 close to the drainage tube 10. The air cavity 2101 is communicated with the air passage 2201, and the air passage 2201 can guide the gas introduced from the air port 2202 to the air cavity 2101 or guide the gas in the air cavity 2101 to the air port 2202.

[0040] In one embodiment, the air port 2202 is formed on one end wall of the air tube 22 far from the fixed tube bladder 21, and the drainage tube 10 and the air tube 22 are designed as a split type.

[0041] Preferably, the drainage tube 10 is installed on the trachea 22 in such a way that part of it is placed in the airway 2201 and both ends extend from both ends of the airway 2201. The air port 2202 is formed on the side of the trachea 22, and gas can be introduced into the air cavity 2101 or directed to the air port 2202 through the gap between the inner wall of the airway 2201 and the drainage tube 10. In other words, the drainage tube 10 is integrally designed with the trachea 22 in a way that is coaxial with part of the trachea 22 to simplify the overall structure. Compared with the split design of the drainage tube 10 and the trachea 22, it is easier to store and use, effectively avoiding the situation of winding and knotting.

[0042] Reference Figures 1 to 3 , the intraoperative bile external drainage device further includes a collection member 30. The collection member 30 is installed at one end of the drainage tube 10 away from the through port 102 and is in communication with the drainage tube 10. The collection member 30 is used to collect the bile drained from the drainage tube 10 to collect uncontaminated bile during the operation for bacterial culture or related scientific research to guide subsequent related diagnosis and treatment.

[0043] Preferably, the collection member 30 is integrally connected to the drainage tube 10.

[0044] Preferably, at least part of the side wall of the collection member 30 is transparent to observe the storage amount of bile in the collection member 30.

[0045] Preferably, the collection member 30 is implemented as a liquid bag or a bottle.

[0046] It is worth mentioning that a measuring structure 31 is formed in the transparent area of the side wall of the collection member 30. The measuring structure 31 extends between the top and bottom ends of the collection member 30. The measuring structure 31 is used to measure the amount of bile in the collection member 30 to enable medical staff to accurately evaluate the intraoperative blood loss.

[0047] Preferably, the measuring structure 31 is implemented as centimeter scale lines.

[0048] Reference Figures 1 to 2 , a branch pipe 11 is formed on the side wall of one end of the drainage tube 10 close to the collection member 30. The branch pipe 11 is in communication with the drainage channel 101. The intraoperative bile external drainage device further includes a valve 40. The valve 40 is installed on the branch pipe 11, and the valve 40 is set to be able to open or close the branch pipe 11. When the valve 40 opens the branch pipe 11, the bile in the drainage channel 101 can flow out through the branch pipe 11 for sampling.

[0049] This application also proposes a method for using the intraoperative bile external drainage device, including the following steps:

[0050] Insert one end of the drainage tube 10 forming the through port 102 into the duct of the common bile duct. The inner support portion 211 is driven by the drainage tube 10 and inserted into the duct together, while the outer clamping portion 212 remains on the circumferential side of the common bile duct. At this time, the common bile duct is inserted into the clamping groove 2102.

[0051] Inflate the tube-fixing bladder 21. The inflated inner support portion 211 expands to press against the inner wall of the common bile duct, and at the same time, the inflated outer clamping portion 212 expands to press against the outer wall of the common bile duct. The common bile duct is clamped by the inner support portion 211 and the outer clamping portion 212 together, thereby tightly connecting the drainage tube 10 to the common bile duct, so that bile in the common bile duct can be discharged through the drainage tube 10.

[0052] Preferably, the inflated inner support portion 211 and the outer clamping portion 212 clamp the inner wall of the common bile duct inside and outside in the radial direction of the drainage tube 10 and in the direction parallel to the axial direction of the drainage tube 10.

[0053] Preferably, the method for using the intraoperative bile external drainage device further includes the following steps: Introduce gas into the air duct 2201 through the air port 2202, and the tube-fixing bladder 21 connected to the trachea 22 is inflated.

[0054] Preferably, the method for using the intraoperative bile external drainage device further includes the following steps: The bile guided by the drainage tube 10 flows into the collecting member 30 to collect the bile.

[0055] Preferably, the method for using the intraoperative bile external drainage device further includes the following steps: Open the branch pipe 11 through the valve 40 to discharge bile from the branch pipe 11 for sampling.

[0056] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from the above principles, the embodiments of the present invention can have any deformation or modification.

Claims

1. The intraoperative bile drainage device is installed in the common bile duct to guide the bile in the liver and gallbladder to be discharged. It is characterized by: The intraoperative bile external drainage device comprises: a drainage tube, the drainage tube having a drainage channel and at least one through-port communicating with the drainage channel, the drainage tube being plugged into the common bile duct in a manner that the drainage channel communicates with the common bile duct through the through-port; A tube-fixing assembly, the tube-fixing assembly comprising a tube-fixing bag, the tube-fixing bag being located at the peripheral side of the drainage tube and at one end of the drainage tube close to the through-port, the tube-fixing bag comprising an inner support portion and an outer clamping portion, the inner support portion and the outer clamping portion each forming an air cavity, a clamping groove being formed between the inner support portion and the outer clamping portion, the inner support portion and the outer clamping portion both being able to undergo elastic deformation to expand or contract when the air cavity is inflated or deflated to adjust the size of the clamping groove, the tube-fixing bag being able to When inflated, the common bile duct is connected to the common bile duct in a manner that the common bile duct is inserted into the clamping groove, the outer clamping portion is placed on the circumference of the common bile duct, and at least a portion of the inner support portion and a portion of the drainage tube are integrally inserted into the pipe. The duct fixing bag can be inflated to reduce the clamping groove in a manner that both the inner support portion and the outer clamping portion expand, so that the inner support portion and the outer clamping portion are used to simultaneously apply internal and external pressure to the tube wall of the common bile duct in the clamping groove to seal the drainage tube to the common bile duct.

2. The intraoperative bile external drainage device according to claim 1, characterized in that: When the duct fixing balloon is not inflated, the common bile duct is inserted into the clamping groove so that the inner support part is completely inserted into the common bile duct, the duct fixing balloon can be inflated so that both the inner support part and the outer clamping part expand to clamp the inner wall of the common bile duct inside and outside in the radial direction of the drainage tube and in the direction parallel to the axial direction of the drainage tube.

3. The intraoperative bile drainage device according to claim 1, characterized in that: The tube fixing bag is installed on the peripheral wall of the drainage tube, the stiffness of the side wall of the clamping groove formed by the inner support portion is smaller than the stiffness of the side wall on the side close to the drainage tube, and the stiffness of the side wall of the clamping groove formed by the outer clamping portion is smaller than the stiffness of the side wall on the side away from the drainage tube, so that when the drainage tube is installed on the common bile duct through the inflated tube fixing bag, the inner support portion and the outer clamping portion expand toward each other to clamp the wall of the common bile duct in the clamping groove.

4. The intraoperative bile external drainage device according to claim 1, characterized in that: The tube fixing bag is sleeved on the drainage tube. When the drainage tube is installed on the common bile duct through the inflated tube fixing bag, the inner support portion expands toward the drainage tube to be sealed with the drainage tube, and the inner support portion and the outer clamp portion expand toward each other to clamp the tube wall of the common bile duct in the clamping groove.

5. The intraoperative bile external drainage device according to any one of claims 1 to 4, characterized in that: The fixed tube assembly also includes an air tube, which has an airway and an air port connected to the airway, an end of the air tube away from the air port is connected to an end of the fixed tube bag close to the drainage tube, the air cavity is connected to the airway, and the airway can guide the gas introduced by the air port to the air cavity or guide the gas in the air cavity to the air port.

6. The intraoperative bile external drainage device according to claim 5, characterized in that: The air port is formed on an end wall of the trachea away from the tube-fixing bag, and the drainage tube and the trachea are designed to be separate.

7. The intraoperative bile external drainage device according to claim 5, characterized in that: The drainage tube is installed on the trachea in a manner that it is partially placed in the airway and its two ends extend from both ends of the airway. The air port is formed on the side of the trachea, and the gas can be introduced into the air cavity or guided to the air port through the gap between the inner wall of the airway and the drainage tube.

8. The intraoperative bile external drainage device according to claim 1, characterized in that: The intraoperative bile external drainage device also includes a collecting piece, which is installed at an end of the drainage tube away from the through-port and is connected to the drainage tube, and is used to collect bile discharged from the drainage tube.

9. The intraoperative bile external drainage device according to claim 8, characterized in that: At least a portion of the side wall of the collecting member is transparent.

10. The intraoperative bile external drainage device according to claim 9, characterized in that: The transparent area of ​​the side wall of the collecting member forms a measuring structure, which extends between the top and bottom ends of the collecting member and is used to measure the amount of bile in the collecting member.

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