Multifunctional biliary tract internal and external drainage tube combination device applied to patients with porta hepatis cholangiocarcinoma

Abstract

The utility model discloses a multifunctional biliary tract internal and external drainage tube combination device applied to a patient suffering from hilum cholangiocarcinoma. A drainage catheter is transited from a shaping area and an elastic cabin area to an internal drainage area to form a cylindrical cone; side holes are formed in the inner drainage area and the shaping area; a marker point is arranged between the inner drainage area and the missile cabin area, the missile cabin area is distributed between the inner drainage area and the shaping area, a one-way valve is arranged at the contact position between the shaping area and the missile cabin area, a hole channel is formed in the outer wall, extending into the marker point from the missile cabin area along the one-way valve, of the missile cabin area, and the hole channel forms a missile cabin in the missile cabin area. The magazine is used for placing radioactive particles; the hard support is used in cooperation with the drainage catheter, the hard support penetrates into the outer drainage area and then is pulled to the end of the inner drainage area, and the curled part of the shaping area of the hard support is straightened. The utility model can realize internal and external drainage and achieve the purpose of local tumor treatment, and is simple and convenient to operate and easy for medical staff to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical equipment, especially a multifunctional biliary tract internal and external drainage tube combination device applied to a hilar cholangiocarcinoma patient. BACKGROUND

[0002] Malignant obstructive jaundice (MOJ) is one of the common complications of pancreatic cancer, gallbladder cancer, and malignant tumors of the liver and bile duct. It is caused by malignant lesions related to the biliary tract. Under the influence of malignant tumors, the flow of bile is blocked, increasing the pressure within the biliary tract, and ultimately leading to elevated total bilirubin levels and jaundice. Hilar malignant biliary obstruction is an important component of malignant biliary obstruction. Hilar cholangiocarcinoma (HCCA) is the most common disease causing hilar malignant biliary obstruction. The main clinical manifestations of MOJ are skin jaundice, yellow urine, and grayish-white stool, among others. Some patients even have severe complications such as shock, threatening their lives. Surgical resection is the main treatment for MOJ patients in clinical practice. However, clinical studies have found that most MOJ patients are in the advanced stage when diagnosed, with a resection rate of less than 20%. Percutaneous transhepatic biliary drainage (PTBD) is one of the important minimally invasive treatments for obstructive jaundice. Ultrasound-guided PTBD is simple, non-radiation, and can be performed bedside, making it widely used in clinical practice. PTBD is a minimally invasive procedure that involves puncturing the intrahepatic bile duct through the skin to drain bile when there is obstruction in the biliary tract, thereby relieving the high pressure in the bile duct above the obstruction, reducing serum bilirubin, or alleviating inflammation in the biliary tract.

[0003] The drainage method after PTBD can be divided into external drainage and internal and external drainage, each with its own advantages and disadvantages. In external drainage, the head of the drainage tube is located distal to the site of biliary obstruction and does not cross the obstruction. This method directly drains bile into the body, has the advantage of being simple to operate, and has a relatively low incidence of postoperative biliary tract infection, especially suitable for cases where multiple biliary tracts need to be drained. In internal and external drainage, the head of the drainage tube crosses the biliary obstruction site, and both the proximal and distal segments of the drainage tube have side holes. Bile can be drained into the body or into the intestine. Compared to external drainage, the drainage tube is less likely to be dislodged, and electrolyte imbalance caused by long-term external drainage is avoided. However, compared to external drainage, the catheter head is located in the intestine, which is easily affected by the pressure in the intestine. When the intestinal pressure is high, intestinal contents can easily flow back into the bile duct, leading to biliary tract infection, which to some extent affects the effectiveness of internal and external drainage.

[0004] Biliary stent treatment is the main way for quickly relieving MOJ patients in clinic, but the treatment has no effect on malignant tumors. At present, in the treatment research of patients with hepatopetal MOJ, the main reasons for the secondary recurrence of MOJ disease include malignant tumor progression and stent intimal hyperplasia, so the inhibition of tumor growth and the relief of bile duct intimal hyperplasia are the problems that are focused on in the current clinical disease treatment. 125 I Intra-cavity radioactive particle irradiation treatment is a new type of treatment method in recent years, which can better control the growth of tumors and reduce the secondary recurrence rate of obstructive jaundice while opening the occluded biliary tract in the treatment of MOJ patients, and has high clinical application value for improving the quality of life of patients. Practical new type content

[0005] To solve the above technical problems, the purpose of the present application is to provide a multifunctional biliary tract internal and external drainage tube combination device for patients with hepatopetal bile duct cancer, and the specific technical solutions are as follows:

[0006] A multifunctional biliary tract internal and external drainage tube combination device for patients with hepatopetal bile duct cancer, comprising a drainage catheter, a limiting pull wire and a hard support.

[0007] The drainage catheter is composed of an internal drainage area, a spring cabin area, a shaping area and an external drainage area, and has a hollow structure inside.

[0008] The drainage catheter is formed into a cylindrical cone by the transition of the shaping area, the spring cabin area to the internal drainage area.

[0009] One end of the external drainage area is provided with a clamping table for connecting a cap or a drainage bag.

[0010] The outer wall of the internal drainage area and the shaping area is provided with a side hole penetrating into the inner cavity.

[0011] A marker point is arranged between the rear end of the side hole of the internal drainage area and the spring cabin area.

[0012] The shaping area is naturally curled into a loop, and the hard support can straighten the shaping area.

[0013] The spring cabin area is distributed between the internal drainage area and the shaping area.

[0014] A one-way valve is arranged at the contact between the shaping area and the spring cabin area, a hole is formed in the outer wall along the one-way valve and deep into the marker point in the spring cabin area, and the hole forms a spring magazine in the spring cabin area.

[0015] The spring magazine is used for placing radioactive particles.

[0016] The limiting pull wire comprises a limiting sheet and a pull wire, and the tail end of the pull wire is connected with the limiting sheet.

[0017] The outer drainage area of the drainage catheter is provided with a mounting hole, and the end of the other end of the limiting pull wire passes through the mounting hole from the outside of the drainage catheter into the lumen of the drainage catheter, passes out of the drainage catheter from the hole at the front end of the shaping area, and extends along the outer wall of the drainage catheter to be connected and fixed with the hole at the rear end of the shaping area.

[0018] The hard support is composed of a conical joint and a sleeve core, and the sleeve core is inserted into the conical joint at one end.

[0019] The hard support is used in cooperation with the drainage catheter, the hard support is pulled to the end of the inner drainage area after being inserted from the outer drainage area, and the curled part of the shaping area is straightened.

[0020] The preferred scheme of the multifunctional biliary internal and external drainage tube combination device applied to patients with hilar cholangiocarcinoma is that the outer surface of the drainage catheter is smooth and free of processing defects, the tail of the tube body of the outer drainage area is connected with a cap, and the outer wall is provided with anti-skid lines.

[0021] The preferred scheme of the multifunctional biliary internal and external drainage tube combination device applied to patients with hilar cholangiocarcinoma is that the size of the drainage catheter is designed according to clinical application.

[0022] The preferred scheme of the multifunctional biliary internal and external drainage tube combination device applied to patients with hilar cholangiocarcinoma is that the marker point is provided with a titanium alloy coating for ultrasonic imaging and X-ray imaging.

[0023] The preferred scheme of the multifunctional biliary internal and external drainage tube combination device applied to patients with hilar cholangiocarcinoma is that the elastic cabin area can cover the narrow segment of the biliary tract.

[0024] The preferred scheme of the multifunctional biliary internal and external drainage tube combination device applied to patients with hilar cholangiocarcinoma is that the material of the hard support is stainless steel, the outer diameter of the sleeve core is greater than 0.06 mm, and after all the sleeve cores are inserted into the drainage catheter, the end of the outer drainage area of the drainage catheter can be opened.

[0025] The material of the drainage catheter is polyurethane, and the hardness of the inner drainage area, the elastic cabin area, and the outer drainage area is greater than that of the shaping area.

[0026] The preferred scheme of the multifunctional biliary internal and external drainage tube combination device applied to patients with hilar cholangiocarcinoma is that the scale is arranged at a place without side holes and is marked along the length of the drainage catheter.

[0027] The operation process of the multifunctional biliary tract internal and external drainage tube combined device applied to a patient with hilar cholangiocarcinoma is as follows: the patient is placed in a supine position, and the right hand is wrapped, disinfected and covered with a drape.Under the guidance of ultrasound, a target biliary tract is found and a puncture point is located, the puncture point is anesthetized and broken by a blade, and a combined puncture needle is used.Under the guidance of ultrasound, the puncture needle sequentially enters the skin, the liver and the target bile duct at the puncture point; the patient is instructed to hold breath and then the needle is advanced at each step.After entering the target biliary tract, the patient is instructed to breathe slowly, the needle core of the puncture needle is rotated out gently, and the needle sheath is sent into the biliary tract at the same time; when the needle sheath enters the biliary tract by 2cm-3cm, the light yellow cool liquid in the needle sheath can be seen, the contrast agent is injected into the sheath, the intrahepatic bile duct is developed under the DSA device, and then the puncture is successful.The guide wire is sent into the sheath, and the guide wire is continuously rotated and changed in direction, so that the guide wire passes through the obstruction end or the narrow segment and enters the distal bile duct or the duodenum, the needle sheath is withdrawn, the channel is expanded by the expansion tube, the multifunctional biliary tract internal and external drainage tube combined device is combined, and a plurality of radioactive particles are placed in the combined device, the guide wire passes through the obstruction end or the narrow segment, the head end side hole of the internal drainage area of the guide tube is located below the obstruction end or the narrow segment, the marker is positioned, the hard support is gradually taken out, when the hard support is withdrawn from the elastic cabin opening, the limiting pull wire at the tail end of the external drainage area of the drainage guide tube is pulled, and the external drainage guide tube is sent into the body again along the hard support, so that the drainage guide tube is sent into the body by 4cm, and the plastic section is formed.Subsequently, the hard support is continuously withdrawn until it is completely withdrawn.The bile flows out of the guide tube and is injected into the contrast agent, and the intrahepatic bile duct is developed well in the second imaging, the guide tube is well formed, the elastic cabin covered with the radioactive particles covers the narrow segment well, and the head end side hole of the internal drainage area of the guide tube is well placed in the common bile duct.The tail end cap of the drainage guide tube is covered, internal drainage is realized, if the internal drainage effect is poor, the drainage bag is externally connected to the tail end of the external drainage area and is externally fixed, the biliary tract puncture drainage is completed, and the patient is wheeled to the ward.

[0028] Beneficial effects

[0029] The multifunctional biliary tract internal and external drainage tube combined device can realize internal and external drainage and achieve the purpose of locally treating tumors, can provide more stable biliary tract fixation, can reduce the risk of infection, can improve the comfort of patients, and is simple to operate and easy to use for medical staff.

[0030] The drainage guide tube body of the technical solution adopts a material with good biocompatibility; internal drainage + external drainage can be realized.Meanwhile, the bullet hole groove in the middle of the drainage guide tube can be placed with radioactive ions to achieve the purpose of locally treating tumors.The tube body is designed with a special anti-displacement structure, the middle part is designed with a special plastic section, and the tube body is used for fixation in the biliary tract.The middle part and the head end of the drainage tube are provided with multiple side holes, so that sufficient drainage is promoted and the risk of infection is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1A schematic diagram of a multifunctional combination device for internal and external biliary drainage tubes used in patients with hilar cholangiocarcinoma.

[0032] Figure 2 This is a schematic diagram of the drainage catheter structure;

[0033] Figure 3 This is a schematic diagram of a rigid support.

[0034] Figure 4 This is a schematic diagram of the loop structure of a multifunctional bile duct drainage tube combination device applied to patients with hilar cholangiocarcinoma, after entering the bile duct.

[0035] In the diagram, 1 is the drainage conduit, 2 is the limiting pull wire, 3 is the rigid support, 4 is the internal drainage area, 5 is the radioactive particle chamber area, 6 is the shaping area, 7 is the external drainage area, 8 is the side hole, 9 is the marker point, 10 is the one-way valve, 11 is the chamber, 12 is the radioactive particle, 13 is the limiting plate, 14 is the pull wire, 15 is the mounting hole, 16 is the conical joint, and 17 is the sleeve core. Detailed Implementation

[0036] like Figures 1-4 The present invention relates to a multifunctional combination device for internal and external biliary drainage tubes for patients with hilar cholangiocarcinoma, comprising a drainage catheter 1, a limiting pull wire 2, and a rigid support 3;

[0037] The drainage conduit 1 consists of an inner drainage area 4, a magazine area 5, a shaping area 6, and an outer drainage area 7, with a hollow internal structure.

[0038] The drainage conduit 1 transitions from the shaping area 6 and the magazine area 5 to the inner drainage area 4 to form a cylindrical cone;

[0039] One end of the external drainage area 7 is provided with a locking platform for connecting the cap;

[0040] The outer walls of the inner drainage area 4 and the shaping area 6 are provided with side holes 8 that penetrate into the inner cavity;

[0041] A marker point 9 is provided between the rear end of the side hole 8 of the inner drainage area 4 and the bomb bay area 5.

[0042] The shaping area 6 is naturally curled into a loop, and can be straightened by the rigid support 3;

[0043] The bomb bay area 5 is located between the inner drainage area 4 and the shaping area 6.

[0044] A one-way valve 10 is provided at the contact point between the shaping area 6 and the magazine area 5. A channel is opened on the outer wall of the magazine area 5 extending from the one-way valve 10 to the marker point 9. The channel forms a magazine 11 in the magazine area 5.

[0045] The cartridge 11 is used to place radioactive particles 12;

[0046] The limiting pull wire 2 comprises a limiting sheet 13 and a pull wire 14, the tail end of the pull wire 14 being connected with the limiting sheet 13;

[0047] The outer drainage area 7 of the drainage catheter 1 is provided with a mounting hole 15, the thread end of the other end of the limiting pull wire 2 passing through the mounting hole 15 from the outside of the drainage catheter 1 into the inner cavity of the drainage catheter 1, and then passing out of the drainage catheter 1 from the side hole 8 at the most front end of the shaping area 6, and extending along the outer wall of the drainage catheter 1 to be connected and fixed with the side hole 8 at the most rear end of the shaping area 6;

[0048] The hard support 3 is composed of a conical joint 16 and a sleeve core 17, and the sleeve core 17 is inserted into the conical joint 16 at one end;

[0049] The hard support 3 is used in cooperation with the drainage catheter 1, the hard support 3 being pulled into the outer drainage area 7 and then to the end of the inner drainage area 4, and the coiled part of the shaping area 6 being straightened.

[0050] The outer surface of the drainage catheter 1 is smooth and free of processing defects, and the tail end of the tube body of the outer drainage area 7 is connected with a cover cap, and the outer wall is provided with anti-skid lines.

[0051] The size specification of the drainage catheter 1 is designed according to clinical application.

[0052] The marker point 9 is provided with a titanium alloy coating for ultrasonic imaging and X-ray imaging.

[0053] The material of the hard support 3 is stainless steel, the outer diameter of the sleeve core is greater than 0.06 mm, and after the sleeve core is completely inserted into the drainage catheter 1, the end spiral of the outer drainage area 7 of the drainage catheter 1 can be opened.

[0054] The material of the drainage catheter 1 is polyurethane, and the hardness of the inner drainage area 4, the cartridge area 5 and the outer drainage area 7 is greater than that of the shaping area 6.

[0055] The scale is set at a place without side holes, and is marked along the length of the drainage catheter 1.

[0056] The outer diameter of the drainage catheter 1 is 8.5F, and the length is 25 cm, wherein the length of the inner drainage area 4 is 3 cm, the length of the cartridge area 5 is 5 cm, the length of the shaping area is 5 cm, and the length of the outer drainage area 7 is 11.5 cm; the shaping area 6 at the position 0.5 cm from the inner drainage area 4 in the direction of the cartridge area 5 is narrowed towards the radioactive particle cartridge, and the cartridge area 5 can cover the narrow segment of the bile duct.

[0057] An operation process of a multifunctional biliary tract internal and external drainage tube combined device applied to a patient with hilar cholangiocarcinoma: the patient is in a supine position, right hand bag head, disinfection, and towel laying. The target biliary tract is found and the puncture point is positioned under the guidance of ultrasound. The puncture point is anesthetized and the skin is broken by a blade. The combined puncture needle is used. Under the guidance of ultrasound, the puncture needle enters the skin, liver and target bile duct in turn at the puncture point. The patient is asked to hold his breath and then the needle is advanced. After entering the target biliary tract, the patient is asked to breathe slowly, and the needle core of the puncture needle is rotated out gently while the needle sheath is sent into the biliary tract. When the needle sheath enters the biliary tract 2-3 cm, the light yellow cool liquid in the needle sheath can be seen, and the contrast agent is injected into the sheath. Under the DSA device, the intrahepatic bile duct is developed, and the puncture is successful. The guide wire is sent along the sheath, and the guide wire is continuously rotated and changed in direction, so that the guide wire passes through the obstruction end or the narrow segment and enters the distal bile duct or the duodenum. The needle sheath is withdrawn, and the dilating tube is used to dilate the channel. After the multifunctional biliary tract internal and external drainage tube combined device of the technical solution is combined, a plurality of radioactive particles are placed, the guide wire passes through the obstruction end or the narrow segment, the head end side hole of the internal drainage area of the catheter is located below the obstruction end or the narrow segment, the marker is positioned, the hard support is gradually taken out, and when the exit port is withdrawn, the limiting pull wire at the tail end of the external drainage area of the drainage catheter is pulled, and the external drainage catheter is sent into the body again along the hard support. The drainage catheter is sent into the body by 4 cm, so that the plastic area forms a loop. Then the hard support is continuously withdrawn until it is completely withdrawn. The bile flows out of the catheter and is injected into the contrast agent. The intrahepatic bile duct is developed well in the second imaging, the loop in the middle of the catheter is good, the elastic capsule covered with radioactive particles covers the narrow segment well, and the head end side hole of the internal drainage area of the drainage catheter is well placed in the common bile duct. The tail end cap of the drainage catheter is capped to realize internal drainage. If the internal drainage effect is not good, the drainage bag is connected to the tail end of the external drainage area and fixed externally in the later period. The biliary tract puncture drainage is completed, and the patient is wheeled to the ward.

Claims

1. A multifunctional internal and external biliary drainage tube combination device applied to a patient with hilar cholangiocarcinoma, characterized in that: The drainage catheter, the limiting pull wire and the hard support are included; The drainage catheter is composed of an inner drainage area, a spring cabin area, a shaping area and an outer drainage area, and is hollow inside; The drainage catheter is formed into a cylindrical cone by the transition of the spring cabin area to the inner drainage area from the shaping area; The outer drainage area is provided with a clamping table at one end for connecting a cap or a drainage bag; The outer wall of the inner drainage area and the shaping area is provided with a side hole penetrating into the inner cavity; The marker point is arranged between the rear end of the side hole of the inner drainage area and the spring cabin area; The shaping area is curled into a loop in a natural state, and can be straightened by the hard support; The spring cabin area is distributed between the inner drainage area and the shaping area, A single valve is arranged at the contact between the shaping area and the spring cabin area, a hole is formed in the outer wall along the single valve and deep into the spring cabin area to the marker point, and the hole forms a spring cabin in the spring cabin area; The spring cabin is used for placing radioactive particles; The limiting pull wire includes a limiting sheet and a pull wire, and the tail end of the pull wire is connected with the limiting sheet; The outer drainage area of the drainage catheter is provided with a mounting hole, the thread of the other end of the limiting pull wire is inserted into the inner cavity of the drainage catheter from the outside of the drainage catheter through the mounting hole, and the thread is pulled out of the drainage catheter from the hole at the front end of the shaping area, and is connected and fixed with the hole at the rear end of the shaping area along the outer wall of the drainage catheter. The hard support is composed of a conical joint and a sleeve core, and the sleeve core is inserted into the conical joint at one end. The hard support is used in cooperation with the drainage catheter, the hard support is pulled into the inner drainage area from the outer drainage area, and the curled part of the shaping area is straightened.

2. The multi-functional internal and external drainage tube set applied to a patient with hilar cholangiocarcinoma according to claim 1, characterized in that: The outer surface of the drainage catheter is smooth and free of processing defects, the tail of the tube body of the outer drainage area is connected with the cap, and the outer wall is provided with anti-skid lines.

3. The combined device of claim 1, which is applied to a patient with hilar cholangiocarcinoma, wherein the combined device comprises: a) a multi-functional external drainage tube; b) a multi-functional internal drainage tube; and c) a multi-functional external drainage tube connector. The size of the drainage catheter is designed according to clinical application.

4. The combined device of claim 1, which is applied to a patient with hilar cholangiocarcinoma, wherein the combined device comprises: a) a multi-functional external drainage tube; b) a multi-functional internal drainage tube; and c) a multi-functional external drainage tube connector. The marker point is provided with a titanium alloy coating for ultrasonic imaging and X-ray imaging.

5. The multifunctional bile duct drainage tube combination device for patients with hilar cholangiocarcinoma as described in claim 1, characterized in that: The spring cabin area can cover the narrow segment of the bile duct.

6. The multifunctional bile duct drainage tube combination device for patients with hilar cholangiocarcinoma as described in claim 1, characterized in that: The material of the hard support is stainless steel, the outer diameter of the sleeve core is greater than 0.06 mm, and the tail end of the outer drainage area of the drainage catheter can be opened after the sleeve core is completely inserted into the drainage catheter; The material of the drainage catheter is polyurethane, and the hardness of the inner drainage area, the spring cabin area and the outer drainage area is greater than that of the shaping area.

7. The combined device of claim 1, which is applied to a patient with hilar cholangiocarcinoma, wherein the combined device comprises: a) a multi-functional external drainage tube; b) a multi-functional internal drainage tube; and c) a multi-functional external drainage tube connector. The scale is arranged at a place without a side hole and is marked along the length of the drainage catheter.

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