Drainage device
By designing a drainage device after choledocholithiasis surgery, a unidirectional flow-limiting structure and a controllable switch are used to achieve selective bile drainage. This solves the problems of weakened fat digestion and intestinal symptoms caused by bile loss, promotes enterohepatic circulation, meets the patient's nutritional needs, and reduces the risk of complications.
Patent Information
- Application Number
- CN202422767585.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-11-13
AI Technical Summary
After surgery for common bile duct stones, patients experience a significant loss of bile, leading to weakened fat digestion, severe intestinal symptoms, and interruption of enterohepatic circulation, which affects nutrient absorption and increases the risk of complications.
Design a drainage device comprising a common bile duct, first and second drainage tubes and an outlet tube. Utilize a unidirectional flow-limiting structure and a controllable switch to achieve selective drainage of bile to the outside or intestinal tract, promoting enterohepatic circulation and nutrient absorption.
By selectively controlling the bile drainage pathway, it is possible to observe bile conditions, promote enterohepatic circulation, meet the patient's nutritional needs, reduce complications, and lower medical costs.
Smart Images
Figure CN223746747U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical auxiliary equipment technical field especially, relate to a drainage device. BACKGROUND
[0002] Common bile duct stone refers to the stone located in the common bile duct, most of which are bile pigment stones or mixed stones mainly of bile pigment, and is prone to occur at the lower end of the common bile duct.
[0003] Generally, the common bile duct stone is treated by surgery. When performing the common bile duct stone surgery, the surgeon usually places a T-shaped drainage tube after incising the common bile duct to drain the bile in the bile duct, so as to reduce the bile pressure in the common bile duct, promote the recovery of the common bile duct incision, avoid the occurrence of bile fistula, and also assist the doctor in making correct judgment on the condition by observing the amount and nature of the bile drained by the T-shaped drainage tube. And the T-shaped drainage tube can support in the biliary tract to prevent biliary stricture.
[0004] However, during the biliary decompression, the patient takes low-fat diet every day, and a large amount of bile is drained out of the body through the T tube. The loss of bile will cause the patient's fat digestion function to be seriously weakened, and because the bile cannot be subjected to enterohepatic circulation, a large amount of bile salts and bile acids will be lost, which will affect the intestinal microorganisms and may cause intestinal symptoms such as diarrhea and indigestion. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a drainage device which can drain bile after the patient undergoes common bile duct surgery, and can drain the bile to the outside of the body and to the intestinal tube when needed.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] The drainage device comprises:
[0008] The common bile duct extends along a first direction;
[0009] The first drainage tube extends along a second direction, the first drainage tube is in communication with the side surface of the common bile duct, the second direction is perpendicular to the first direction, and the side surface of the first drainage tube has a first boundary;
[0010] The second drainage tube is in communication with one end of the first drainage tube away from the common bile duct, the free end of the second drainage tube extends towards the common bile duct, and the free end of the second drainage tube is located on the side of the first boundary close to the common bile duct, the free end of the second drainage tube is provided with a one-way flow limiting structure, and the one-way flow limiting structure can limit the flow of fluid outside the second drainage tube to flow into the second drainage tube;
[0011] An outlet pipe, a first end of the outlet pipe is in communication with the first drainage pipe and the second drainage pipe, and a second end of the outlet pipe extends away from the common bile duct, and the outlet pipe can be selectively opened or closed.
[0012] Optionally, a first switch is arranged on the outlet pipe, and the first switch can control the outlet pipe to be selectively opened or closed.
[0013] Optionally, a second switch is arranged on the first drainage pipe, and the second switch can control the first drainage pipe to be selectively opened or closed.
[0014] Optionally, the first drainage pipe comprises a first section and a second section in communication with each other, the first section is in communication between the common bile duct and the second section, the second drainage pipe is in communication with one end of the second section away from the common bile duct, the first end of the outlet pipe is in communication with one end of the second section away from the common bile duct and one end of the second drainage pipe away from the common bile duct, and the first section and the second section are connected at the first boundary.
[0015] Optionally, the second switch is arranged on the second section.
[0016] Optionally, a third switch is arranged on the second drainage pipe, and the third switch can control the second drainage pipe to be selectively opened or closed.
[0017] Optionally, the second drainage pipe comprises a third section and a fourth section in communication with each other, one end of the third section is in communication with the first drainage pipe and the outlet pipe, and the fourth section is in communication with the other end of the third section.
[0018] Optionally, the third section and the fourth section are connected at a second boundary, and the third switch is arranged on the third section.
[0019] Optionally, the third section is arranged in parallel with the first drainage pipe.
[0020] Optionally, the one-way flow limiting structure is a rotary body structure with openings at both ends, the flow area of the rotary body structure gradually decreases in the direction of the second drainage pipe away from the common bile duct, and the end with the larger opening of the one-way flow limiting structure is fixedly connected with the inner wall of the second drainage pipe.
[0021] The utility model discloses beneficial effects:
[0022] The method for using the drainage device is as follows: when performing choledocholithotomy, the common bile duct of the drainage device is embedded into the common bile duct of the patient, so as to facilitate subsequent unobstructed drainage. The free end of the second drainage tube is embedded at a distance from the starting position of the jejunum, and the jejunum is fixed to prevent the second drainage tube from slipping off. The outside of the part of the second drainage tube embedded in the jejunum is covered with omental tissue to reduce adhesion. The parts of the first drainage tube and the second drainage tube away from the common bile duct are pierced out of the skin, and the leading-out tube is connected to a drainage bag. The part of the first drainage tube between the first boundary position and the common bile duct is located in the abdominal cavity of the patient, and the remaining part of the first drainage tube is located outside the abdominal cavity of the patient. Due to the arrangement of the one-way flow limiting structure, the intestinal fluid of the intestinal canal cannot flow into the second drainage tube.
[0023] When it is necessary to drain the bile of the patient to the outside of the body for observation, the leading-out tube is controlled to be unblocked, and the bile flows to the outside of the body in sequence through the common bile duct, the first drainage tube and the leading-out tube for the doctor to observe. When it is not necessary to drain the bile of the patient to the outside of the body for observation, the leading-out tube is controlled to be blocked, and the bile led out in sequence through the common bile duct and the first drainage tube can flow into the intestinal canal along the second drainage tube, so as to promote the enterohepatic circulation of the patient, and also to ensure the absorption of fat-soluble vitamins in the patient's body, thereby meeting the demand of the human body for nutrients. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.
[0025] Figure 1 is a structural schematic view of the drainage device provided by the embodiments of the present application;
[0026] Figure 2 is Figure 1 is an enlarged view of position A in
[0027] in the drawings:
[0028] 1, common bile duct;
[0029] 2, first drainage tube; 21, first boundary position; 22, first section; 23, second section; 24, second switch;
[0030] 3, second drainage tube; 31, third section; 32, fourth section; 33, third switch; 34, one-way flow limiting structure;
[0031] 4, leading-out tube; 41, first switch. DETAILED DESCRIPTION
[0032] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely used to explain the utility model and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.
[0033] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0034] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0035] In the description of the embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the utility model. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.
[0036] After the operation of the common bile duct, the patient's body is relatively weak, and the demand for nutrients is relatively large. Due to the need for self-recovery, a large amount of nutrients is consumed, and the intake of nutrients is limited, especially after the lack of bile acid, most patients feel no appetite, and oral bile is difficult to swallow. If this continues, the probability of postoperative complications will greatly increase. For example, patients after bile duct surgery may cause complications such as ascites, and even more, patients may need to supplement albumin. In this way, the economic burden of patients is increased, and the overall medical expenses required for hospitalization are also increased.
[0037] To help the recovery of patients after common bile duct surgery, see Figure 1 and Figure 2 The present embodiment provides a drainage device which can drain bile after common bile duct surgery, both to the outside of the body and to the intestinal tract when necessary.
[0038] Specifically, in the present embodiment, the drainage device comprises a common bile duct 1, a first drainage tube 2, a second drainage tube 3 and a lead-out tube 4.
[0039] The common bile duct 1 extends in a first direction.
[0040] The first drainage tube 2 extends in a second direction, the first drainage tube 2 communicates with the side of the common bile duct 1, the second direction is perpendicular to the first direction, and the side of the first drainage tube 2 has a first demarcation 21.
[0041] Optionally, the first drainage tube 2 is connected to the midpoint of the side of the common bile duct 1.
[0042] The second drainage tube 3 communicates with the end of the first drainage tube 2 away from the common bile duct 1, the free end of the second drainage tube 3 extends towards the common bile duct 1, and the free end of the second drainage tube 3 is located on the side of the first demarcation 21 close to the common bile duct 1. The second drainage tube 3 is provided with a one-way flow limiting structure 34, which can limit the flow of fluid outside the second drainage tube 3 to the inside of the second drainage tube 3.
[0043] The first end of the lead-out tube 4 communicates with the end of the first drainage tube 2 away from the common bile duct 1 and the end of the second drainage tube 3 away from the common bile duct 1, and the second end extends away from the common bile duct 1, and the lead-out tube 4 can be selectively open or cut off.
[0044] The use method of the drainage device provided by the present embodiment is as follows: when performing common bile duct lithotomy, the common bile duct 1 of the drainage device is embedded in the common bile duct of the patient's body to facilitate subsequent unobstructed drainage. The free end of the second drainage tube 3 is embedded about 15 cm from the start of the jejunum, and the jejunum is fixed to prevent the second drainage tube 3 from slipping out. The outside of the part of the second drainage tube 3 embedded in the jejunum is covered with omental tissue to reduce adhesion. The parts of the first drainage tube 2 and the second drainage tube 3 away from the common bile duct 1 are pierced out of the skin, and the lead-out tube 4 is connected to a drainage bag. Among them, the part of the first drainage tube 2 between the first demarcation 21 and the common bile duct 1 is located in the abdominal cavity of the patient, and the remaining part of the first drainage tube 2 is located outside the abdominal cavity of the patient.
[0045] Due to the provision of the one-way flow limiting structure 34, the intestinal fluid of the intestinal tract will not flow into the second drainage tube 3.
[0046] When it is needed to drain the bile of the patient to the outside for observation, the flow of the leading-out tube 4 is controlled, and the bile flows to the outside in turn through the common bile duct 1, the first drainage tube 2 and the leading-out tube 4 for the doctor to observe. When it is not needed to drain the bile of the patient to the outside for observation, the flow of the leading-out tube 4 is controlled to be cut off, and the bile flowing out in turn through the common bile duct 1 and the first drainage tube 2 can flow to the intestinal canal along the second drainage tube 3, so as to promote the enterohepatic circulation of the patient, and also to ensure the absorption of the fat-soluble vitamins in the patient, thereby meeting the needs of the human body for nutrients.
[0047] The second drainage tube 3 is the same as the intestinal canal, and can be used as an enteral nutrition tube.
[0048] Specifically, in the embodiment, the one-way flow-limiting structure 34 is a rotary body structure with openings at both ends, and the flow area of the rotary body structure gradually decreases in the direction of the second drainage tube 3 close to the common bile duct 1, and the opening end of the one-way flow-limiting structure 34 with a larger opening is fixedly connected with the inner wall of the second drainage tube 3.
[0049] The flow area of the rotary body structure gradually decreases, thereby forming a throttling structure, and avoiding the intestinal fluid of the intestinal canal from flowing into the second drainage tube 3.
[0050] Further, in order to control the flow and cut-off of the leading-out tube 4, in the embodiment, the first switch 41 is arranged on the leading-out tube 4, and the first switch 41 can control the selective flow or cut-off of the leading-out tube 4.
[0051] Further optionally, the first switch 41 is a drop rate regulator, which can control the flow and cut-off of the leading-out tube 4, and also can control the flow area of the leading-out tube 4.
[0052] Further, in the embodiment, the second switch 24 is arranged on the first drainage tube 2, and the second switch 24 can control the selective flow or cut-off of the first drainage tube 2. When it is not needed to observe the bile, the second switch 24 can be closed to control the cut-off of the first drainage tube 2.
[0053] Optionally, in the embodiment, the second switch 24 is a drop rate regulator.
[0054] Specifically, in the embodiment, the first drainage tube 2 comprises a first section 22 and a second section 23 which are in communication with each other, the first section 22 is communicated between the common bile duct 1 and the second section 23, the second drainage tube 3 is communicated with one end of the second section 23 away from the common bile duct 1, the first end of the leading-out tube 4 is communicated with the one end of the second section 23 away from the common bile duct 1 and the one end of the second drainage tube 3 away from the common bile duct 1, and the connection position of the first section 22 and the second section 23 is a first boundary 21.
[0055] When the drainage device is buried in place, the first section 22 is located in the abdominal cavity of the patient, and the second section 23 is located outside the abdominal cavity of the patient.
[0056] The second switch 24 is arranged on the second section 23. In this way, the second switch 24 is located outside the abdominal cavity of the patient, facilitating operation.
[0057] Specifically, in the present embodiment, the second drainage tube 3 is provided with a third switch 33, which can selectively control the flow or blockage of the second drainage tube 3. When it is not necessary to drain bile into the intestinal tube, the third switch 33 is closed, so that the second drainage tube 3 is blocked.
[0058] Optionally, in the present embodiment, the third switch 33 is a drop rate regulator.
[0059] Further, the second drainage tube 3 comprises a third section 31 and a fourth section 32 which are in communication with each other, one end of the third section 31 is in communication with the first drainage tube 2 and the lead-out tube 4, and the fourth section 32 is in communication with the other end of the third section 31.
[0060] The connection between the third section 31 and the fourth section 32 forms a second boundary. When the drainage device is in place, the fourth section 32 is located in the abdominal cavity of the patient, and the third section 31 is located outside the abdominal cavity of the patient.
[0061] Specifically, the third switch 33 is arranged on the third section 31, so that the third switch 33 is also located outside the patient's body, facilitating operation.
[0062] Preferably, the third section 31 is arranged in parallel with the first drainage tube 2. In this way, the first drainage tube 2 and the second drainage tube 3 can be pierced through the skin through a single hole, facilitating external fixation and drainage, and facilitating operation.
[0063] Illustratively, in the present embodiment, the lead-out tube 4 is provided with a first switch 41, the first drainage tube 2 is provided with a second switch 24, the second drainage tube 3 is provided with a third switch 33, and the use method of the drainage device is as follows: the drainage device is buried in place during surgery, and the outlet end of the lead-out tube 4 is connected to a drainage bag.
[0064] When it is necessary to drain bile to observe the bile condition of the patient, the first switch 41 and the second switch 24 are opened, and the third switch 33 is closed, so that the bile can flow into the drainage bag; when the observation is completed, the drainage bag is hung high, the third switch 33 is opened, the second switch 24 is closed, and the first switch 41 is kept open, so that the bile in the drainage bag flows reversely into the intestinal tube.
[0065] When it is not necessary to observe the bile, the first switch 41 is closed, the second switch 24 and the third switch 33 are opened, so that the bile can flow into the intestinal tube through the first drainage tube 2 and the second drainage tube 3, and at this time, the bile will not be drained into the drainage bag. After the patient eats food, the bile can normally digest the food, and because of the existence of the one-way flow limiting structure 34, the reflux of intestinal fluid will not occur.
[0066] The first switch 41, the second switch 24 and the third switch 33 are closed when the biliary juice flows from the common bile duct 1. The biliary juice flows by itself into the biliary tract, at this time the second drainage tube 3 can be pulled out, and the biliary tract restores its function.
[0067] Specifically, when flushing the intestinal tube before pulling out the tube, the first switch 41 and the second switch 24 are opened, the third switch 33 is closed, and the flushing liquid is injected into the common bile duct 1. And the operation of taking out the stone by the cholangioscope can be carried out.
[0068] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. Drainage device, characterized in that The application relates to a drainage device for common bile duct, comprising: a common bile duct (1) extending in a first direction; a first drainage tube (2) extending in a second direction, the first drainage tube (2) being in communication with a side of the common bile duct (1), the second direction being perpendicular to the first direction, the side of the first drainage tube (2) having a first boundary (21); a second drainage tube (3) in communication with an end of the first drainage tube (2) away from the common bile duct (1), a free end of the second drainage tube (3) extending towards the common bile duct (1), the free end of the second drainage tube (3) being located on a side of the first boundary (21) close to the common bile duct (1), the free end of the second drainage tube (3) being provided with a one-way flow limiting structure (34) capable of limiting the flow of fluid outside the second drainage tube (3) into the second drainage tube (3); a lead-out tube (4) having a first end in communication with the end of the first drainage tube (2) and the end of the second drainage tube (3) away from the common bile duct (1) and a second end extending in a direction away from the common bile duct (1), the lead-out tube (4) being capable of selective flow or being cut off.
2. The drainage device of claim 1, wherein, The lead-out tube (4) is provided with a first switch (41) capable of controlling the selective flow or cut-off of the lead-out tube (4).
3. The drainage device of claim 2, wherein, The first drainage tube (2) is provided with a second switch (24) capable of controlling the selective flow or cut-off of the first drainage tube (2).
4. The drainage device of claim 3, wherein, The first drainage tube (2) comprises a first section (22) and a second section (23) in communication with each other, the first section (22) being in communication between the common bile duct (1) and the second section (23), the second drainage tube (3) being in communication with an end of the second section (23) away from the common bile duct (1), the first end of the lead-out tube (4) being in communication with the end of the second section (23) and the end of the second drainage tube (3) away from the common bile duct (1), and the connection between the first section (22) and the second section (23) being the first boundary (21).
5. The drainage device of claim 4, wherein, The second switch (24) is arranged on the second section (23).
6. The drainage device of claim 3, wherein, The second drainage tube (3) is provided with a third switch (33) capable of controlling the selective flow or cut-off of the second drainage tube (3).
7. The drainage device of claim 6, wherein, The second drainage tube (3) comprises a third section (31) and a fourth section (32) in communication with each other, one end of the third section (31) being in communication with the first drainage tube (2) and the lead-out tube (4), and the fourth section (32) being in communication with the other end of the third section (31).
8. The drainage device of claim 7, wherein, The connection between the third section (31) and the fourth section (32) forms a second boundary, and the third switch (33) is arranged on the third section (31).
9. The drainage device of claim 8, wherein, The third section (31) is arranged in parallel with the first drainage tube (2).
10. The drainage device of any one of claims 1-9, wherein, The one-way flow limiting structure (34) is a rotation body structure with openings at both ends, and the flow area of the rotation body structure gradually decreases in the direction of the second drainage tube (3) close to the common bile duct (1), and the opening of the one-way flow limiting structure (34) is fixedly connected with the inner wall of the second drainage tube (3) at the larger end.