Biliary tract radioactive balloon drainage tube

Abstract

The utility model discloses a radioactive balloon drainage tube for biliary tract, which relates to the technical field of medical auxiliary equipment and comprises a drainage tube main body, a catheter, a balloon and two supporting mechanisms, the catheter is movably arranged in the drainage tube main body, the balloon is arranged on the peripheral wall of the drainage tube main body, and the two supporting mechanisms are further arranged on the peripheral wall of the drainage tube main body. Each supporting mechanism comprises a plurality of elastic supporting pieces, a plurality of strip-shaped holes are formed in the peripheral wall of the drainage tube body, one end of each elastic supporting piece is connected with one side of the corresponding strip-shaped hole, and the other end of each elastic supporting piece penetrates through the corresponding strip-shaped hole and is connected with the catheter. The supporting mechanism can be contracted and can also be opened, and when the supporting mechanism is opened, the supporting mechanism can abut against the inner wall of the biliary tract, so that the position of the drainage tube body is fixed, and the anti-skid effect is achieved; through the arrangement of the balloon, radioactive substances are injected into the balloon, so that internal irradiation treatment can be performed on bile duct tumors, and effective and minimally invasive treatment is provided for portal hepatopathy and extrahepatic bile duct tumors which cannot be operated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a bile duct radioactive balloon drainage tube. Background Art

[0002] Hilar cholangiocarcinoma and extrahepatic cholangiocarcinoma are highly invasive and easily invade the hepatic artery, portal vein and liver parenchyma. They have low surgical resection rates and poor prognosis. Most hilar cholangiocarcinomas and extrahepatic cholangiocarcinomas have lost the opportunity for surgery when they are discovered and are insensitive to chemotherapy. External radiotherapy for cholangiocarcinoma has a large irradiation range, and the incidence of radiation liver damage and radiation enteritis is high. Radiotherapy of radioactive particles in the bile duct has a certain effect, but the commonly used iodine 125 particles are permanently implanted and have a long half-life, which has many adverse effects on the patient's subsequent treatment and life.

[0003] The existing bile duct drainage tube includes a drainage tube body, an anti-slip threaded rib is arranged at the end of the drainage tube, and a plurality of drainage holes are arranged on the drainage tube body, bile is introduced into the cavity in the drainage tube body through the drainage holes, and then the introduced bile is discharged into the jejunum or outside the body.

[0004] However, the biliary drainage tube in the prior art can only play a drainage role and cannot perform internal irradiation treatment on bile duct tumors. In addition, only providing anti-slip threaded ribs at the end of the drainage tube will also lead to poor anti-slip effect. Therefore, it is necessary to provide a drainage tube with good anti-slip effect and capable of internal irradiation treatment effect. Utility Model Content

[0005] The utility model aims to provide a bile duct radioactive balloon drainage tube, which is used to solve the above technical problems.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A bile duct radioactive balloon drainage tube, comprising a drainage tube body, a catheter, a balloon and a supporting mechanism, wherein the catheter is movably arranged in the drainage tube body, and one end of the catheter extends out of the drainage tube body, the balloon is arranged on the outer peripheral wall of the drainage tube body, and two supporting mechanisms are also arranged on the outer peripheral wall of the drainage tube body, and the two supporting mechanisms are located on both sides of the balloon;

[0008] Each of the supporting mechanisms includes a plurality of elastic supporting members, and a plurality of strip holes are opened on the outer peripheral wall of the drainage tube body, and the plurality of strip holes are distributed in a ring shape. One end of each of the elastic supporting members is respectively connected to one side of the strip hole, and the other end of each of the elastic supporting members passes through the strip hole and is connected to the catheter.

[0009] Preferably, a plurality of the strip-shaped holes are evenly distributed on the outer wall of the drainage tube body, and a gap is provided between two adjacent drainage tube bodies.

[0010] Preferably, the strip-shaped holes are arranged along the axial direction of the drainage tube body.

[0011] Preferably, a receiving groove is provided on the outer wall of the conduit at a position directly opposite to the strip-shaped hole, and the elastic support member can enter the receiving groove when being compressed.

[0012] Preferably, the elastic support member is arranged in an arc shape, and a plurality of the elastic support members form an ellipsoid structure.

[0013] Preferably, the drainage tube body and the catheter are provided with a first guide hole and a second guide hole, the first guide hole is located between one of the support mechanisms and the balloon, and the second guide hole is located on a side of the other support mechanism away from the balloon.

[0014] Preferably, a connecting tube is further included, wherein a first channel is opened in the drainage tube body, one end of the first channel is connected to the balloon, and the other end of the first channel is connected to the connecting tube, and the connecting tube is used to inject radioactive substances into the balloon.

[0015] As a further preference, it further comprises a flow stop clamp, and the flow stop clamp is provided on the connecting pipe.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] In the utility model, through the setting of the support mechanism, the support mechanism can be contracted or expanded. When expanded, it can be against the inner wall of the bile duct, so that the position of the drainage tube body is fixed, and an anti-slip effect is achieved. Through the setting of the balloon, radioactive substances are injected into the interior of the balloon, which can perform internal irradiation treatment on bile duct tumors, providing effective and minimally invasive treatment for hilar and extrahepatic bile duct tumors that cannot be operated on. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of the utility model of the bile duct radioactive balloon drainage tube;

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0020] In the figure: 1. drainage tube body; 2. catheter; 3. balloon; 4. supporting mechanism; 5. elastic supporting member; 6. strip hole; 7. receiving groove; 8. first guide hole; 9. second guide hole; 10. first channel; 11. connecting tube; 12. flow stop clamp. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Figure 1 This is a structural schematic diagram of the utility model of the bile duct radioactive balloon drainage tube; Figure 2 yes Figure 1 For the enlarged view of point A in the middle, please see Figure 1 to Figure 2 As shown, a preferred embodiment is shown, which is a bile duct radioactive balloon drainage tube, characterized in that it includes a drainage tube body 1, a catheter 2, a balloon 3 and a support mechanism 4, the catheter 2 is movably arranged in the drainage tube body 1, and one end of the catheter 2 extends out of the drainage tube body 1, the balloon 3 is arranged on the outer peripheral wall of the drainage tube body 1, and two support mechanisms 4 are also arranged on the outer peripheral wall of the drainage tube body 1, and the two support mechanisms 4 are located on both sides of the balloon 3; in this embodiment, see Figure 1As shown, the catheter 2 can slide in the drainage tube body 1 and can move along the axial direction of the drainage tube body 1, thereby expanding or compressing the support mechanism 4. When the support mechanism 4 is expanded, it can be against the inner wall of the bile duct, so that the position of the drainage tube body 1 is fixed. The support mechanism 4 is a retractable structure. The balloon 3 can be contracted, and the inside of the balloon 3 is used to inject radioactive substances. When in use, the inside of the catheter 2 can cooperate with the guide wire to insert the drainage tube body 1 to the specified position. At this time, the support mechanism 4 and the balloon 3 are both located in the bile duct, and the balloon 3 can be directly opposite to the tumor position in the bile duct, and then the balloon 3 is filled with radioactive substances to play a role in irradiation or expansion of the tumor. Then, by pushing the catheter 2, the catheter 2 drives the two support mechanisms 4 to expand, thereby against the inner wall of the bile duct, and the position of the drainage tube body 1 is fixed to avoid sliding. Among them, a sealing ring can be provided between the opening at one end of the drainage tube body 1 and the catheter 2.

[0025] Each support mechanism 4 includes a plurality of elastic support members 5. A plurality of strip holes 6 are provided on the outer peripheral wall of the drainage tube body 1. The plurality of strip holes 6 are distributed in a ring shape. One end of each elastic support member 5 is connected to one side of a strip hole 6. The other end of each elastic support member 5 passes through the strip hole 6 and is connected to the catheter 2. The plurality of strip holes 6 are evenly distributed on the outer wall of the drainage tube body 1. There is a gap between two adjacent drainage tube bodies 1. Figure 2 As shown, the strip hole 6 is arranged along the axial direction of the drainage tube body 1. In the stretched state, the elastic support member 5 can extend out of the strip groove, and the elastic support member 5 is arranged in an arc shape. When contracted, the elastic support member 5 can enter the receiving groove 7 on the catheter 2 through the strip hole 6. Before the drainage tube body 1 enters the bile duct, the catheter 2 can be pulled outward. At this time, the catheter 2 will drive the other end of the elastic support member 5 to move, and the drainage tube body 1 will squeeze the elastic support member 5, so that the elastic support member 5 enters the receiving groove 7 on the catheter 2. When the drainage tube body 1 enters the designated position in the bile duct, the catheter 2 can be pushed, so that the catheter 2 pushes the elastic support member 5 to pop out through the strip hole 6, and after the elastic support member 5 pops out, it will be in an arc shape, thereby pressing against the inner wall of the bile duct to prevent the drainage tube body 1 from sliding.

[0026] Further, as a preferred embodiment, a receiving groove 7 is provided on the outer wall of the conduit 2 at a position opposite to the strip-shaped hole 6, and the elastic support member 5 can enter the receiving groove 7 when compressed. Figure 2 As shown, when the catheter 2 moves to the left, it can drive the elastic support member 5 into the accommodating groove 7, and when the catheter 2 moves to the right, it can push the elastic support member 5 to a position opposite to the strip hole 6. At this time, the elastic support member 5 can automatically pop out of the strip hole 6 under the action of its own elasticity.

[0027] Further, as a preferred embodiment, the elastic support member 5 is arranged in an arc shape, and a plurality of elastic support members 5 form an ellipsoid structure.

[0028] Further, as a preferred embodiment, the drainage tube body 1 and the catheter 2 are provided with a first guide hole 8 and a second guide hole 9, the first guide hole 8 is located between one of the support mechanisms 4 and the balloon 3, and the second guide hole 9 is located on the side of the other support mechanism 4 away from the balloon 3. The first guide hole 8 and the second guide hole 9 both penetrate the drainage tube body 1 and the catheter 2, and when the support mechanism 4 is opened, the first guide hole 8 on the drainage tube body 1 is opposite to the first guide hole 8 on the catheter 2, and the second guide hole 9 on the drainage tube body 1 is opposite to the second guide hole 9 on the catheter 2. The first guide hole 8 can enter the bile duct, and the bile in the bile duct can enter the catheter 2 through the first guide hole 8, and the second guide hole 9 can be located in the jejunum, and the bile in the catheter 2 can enter the jejunum or be discharged from the body.

[0029] Further, as a preferred embodiment, it also includes a connecting tube 11. A first channel 10 is opened in the drainage tube body 1. One end of the first channel 10 is connected to the balloon 3, and the other end of the first channel 10 is connected to the connecting tube 11. The connecting tube 11 is used to inject radioactive substances into the balloon 3. Figure 1 As shown, it also includes a flow-stopping clamp 12, and the flow-stopping clamp 12 is provided on the connecting tube 11. The flow-stopping clamp 12 is used to clamp the connecting tube 11, so that the inner cavity of the connecting tube 11 is closed to prevent the radioactive material in the balloon 3 from flowing out. Among them, the connecting tube 11 is used to inject radioactive material into the first channel 10, and the radioactive material will enter the balloon 3, expand the balloon 3, so that the balloon 3 is facing the tumor in the bile duct, and the bile duct tumor can be treated by internal irradiation. The first channel 10 in this embodiment is staggered with the strip hole 6 to prevent the radioactive material in the first channel 10 from entering the strip hole 6.

[0030] See also Figure 1 As shown, a first mark is provided on both sides of the balloon 3, and a second mark is provided on the side of the second guide hole 9 away from the support mechanism 4. The setting of the first mark and the second mark can help the bile duct radioactive balloon 3 drainage tube to be positioned under X-ray.

[0031] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A bile duct radioactive balloon drainage tube, characterized in that: The device comprises a drainage tube body, a catheter, a balloon and a supporting mechanism, wherein the catheter is movably arranged in the drainage tube body, and one end of the catheter extends out of the drainage tube body, the balloon is arranged on the outer peripheral wall of the drainage tube body, and two supporting mechanisms are also arranged on the outer peripheral wall of the drainage tube body, and the two supporting mechanisms are located on both sides of the balloon; Each of the supporting mechanisms includes a plurality of elastic supporting members, and a plurality of strip holes are opened on the outer peripheral wall of the drainage tube body, and the plurality of strip holes are distributed in a ring shape. One end of each of the elastic supporting members is respectively connected to one side of the strip hole, and the other end of each of the elastic supporting members passes through the strip hole and is connected to the catheter.

2. The biliary radioactive balloon drainage tube according to claim 1, characterized in that: A plurality of the strip-shaped holes are evenly distributed on the outer wall of the drainage tube body, and a gap is provided between two adjacent drainage tube bodies.

3. The biliary radioactive balloon drainage tube according to claim 1, characterized in that: The strip-shaped holes are arranged along the axial direction of the drainage tube body.

4. The biliary radioactive balloon drainage tube according to claim 1, characterized in that: An accommodating groove is provided on the outer wall of the conduit at a position directly opposite to the strip-shaped hole, and the elastic supporting member can enter the accommodating groove when being compressed.

5. The biliary radioactive balloon drainage tube according to claim 1, characterized in that: The elastic support member is arranged in an arc shape, and a plurality of the elastic support members form an ellipsoid structure.

6. The biliary radioactive balloon drainage tube according to claim 1, characterized in that: The drainage tube body and the catheter are provided with a first guide hole and a second guide hole. The first guide hole is located between one of the support mechanisms and the balloon, and the second guide hole is located on a side of the other support mechanism away from the balloon.

7. The biliary radioactive balloon drainage tube according to claim 1, characterized in that: It also includes a connecting tube. A first channel is opened in the drainage tube body. One end of the first channel is connected to the balloon, and the other end of the first channel is connected to the connecting tube. The connecting tube is used to inject radioactive substances into the balloon.

8. The biliary radioactive balloon drainage tube according to claim 7, characterized in that: It also includes a flow-stop clamp, which is arranged on the connecting pipe.

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