CN212213819U

CN212213819U - Double-cavity stone-taking balloon

Info

Publication number: CN212213819U
Application number: CN202020403631.9U
Authority: CN
Inventors: 吴萍; 张�诚
Original assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Current assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-25
Anticipated expiration: 2030-03-25

Abstract

The utility model provides a two-chamber calculus removing balloon. Including the pipe main part, set up in the sacculus portion of pipe main part front end and set up in the handle portion of pipe main part rear end, inside first passageway and the second passageway of being equipped with of pipe main part, first passageway and second passageway link to each other with first handle and second handle respectively, and first passageway is used for doing sacculus portion is aerifyd, and the second passageway is used for injecting the contrast medium and carries out the biliary tract radiography, and the front end of sacculus portion is equipped with the head, the head is the single channel pipe, is equipped with the seal wire clearing hole that supplies the seal wire to pass on its pipe wall, and during the use, the tail end of seal wire passes head anterior segment and seal wire clearing hole in proper order, injects the contrast medium through the second handle and carries out biliary tract radiography, injects gaseous sufficient sacc. The utility model discloses set up the seal wire side opening on sacculus the place ahead pipe, sacculus and somatic part do not have the seal wire passageway, only have injection channel and sacculus passageway, consequently can the sacculus bile duct do thinner, can require lower to preparation technology and material moreover.

Description

Double-cavity stone-taking balloon

Technical Field

The utility model relates to a medical technology of wicresoft and surgical instruments technical field especially relate to a stone sacculus is got to two-chamber.

Background

Common bile duct stones are common diseases and frequently encountered diseases in China, bile excretion can be unsmooth due to blockage of the common bile duct stones, complications such as acute cholangitis, obstructive jaundice and liver damage can be induced, manifestations such as shivering, fever, abdominal pain and jaundice appear, serious patients even cause shock, and long-term stone stimulation has the risk of bile duct cancer, so that the common bile duct stones are important diseases harmful to human health. The existing treatment scheme of the common bile duct calculus comprises the steps of laparotomy biliary tract exploration calculus removal, laparoscopic biliary tract exploration calculus removal, Endoscopic Retrograde Cholangiopancreatography (ERCP) calculus removal, Percutaneous Transhepatic Cholangiopuncture (PTCD), fistula expansion and Percutaneous Transcholangioscopy (PTCS) calculus removal, PTCD-approach duodenal papillary balloon dilatation balloon calculus removal and the like.

The biliary tract exploration requires general anesthesia, so the operation risk is high; PTCS is a long-term disease and the overall cost of treatment is high. The ERCP stone removal has many symptoms such as few contraindications, small wound, quick recovery, few complications and the like, and the choledocholithiasis is treated by adopting a scope ERCP approach at present. The ERCP is adopted to remove stones, two instruments, namely a stone removal saccule and a stone removal basket are generally adopted, wherein the stone removal basket is mainly used for treating stones with the diameter of more than 5mm, and the stone removal saccule is generally used for treating muddy stones, broken stones or stones with the diameter of less than 5 mm.

Most of the existing stone removal balloons are three-channel balloons, and the existing stone removal balloons comprise a guide wire channel, a balloon channel and an imaging channel. The partial saccule combines the guide wire channel with the radiography channel, a double-channel saccule appears, but the clinical use is more complicated, and the guide wire needs to be pushed out when the biliary tract radiography is carried out. At present, the conventional saccule adopts a guide wire channel penetrating through a saccule catheter, and the following problems and disadvantages exist in the clinical use process: 1. the operation of inserting the saccule is completed by an operator, and the operation of filling the saccule, imaging and inserting the guide wire is completed by an assistant. During the process of placing the saccule, the guide wire is easily placed into a peripheral bile duct by the saccule, so that pain of a patient is caused; in the process of pulling back and removing the calculus, the guide wire is easy to be pulled into duodenum, bile duct intubation is needed again, operation risk is increased, and operation time is prolonged; 2. the diameter of a clinically used guide wire is generally 0.89mm, the diameter of a guide wire channel is generally 1mm, and the guide wire channel and a balloon channel are added, so that a certain tube wall thickness is kept, the diameter of the balloon catheter is generally larger than 2mm, and when part of thin tube diameter or calculus is embedded, the balloon catheter cannot reach the position above the calculus, and in addition, the resistance of the balloon catheter is also increased by the balloon at the front section of the catheter.

SUMMERY OF THE UTILITY MODEL

In accordance with the above-mentioned technical problem, a double-lumen lithotomy balloon is provided. The utility model discloses set up the seal wire side opening on sacculus the place ahead pipe, only injection channel and sacculus passageway, consequently the pipe diameter can be thinner. The utility model discloses a technical means as follows:

the utility model provides a stone sacculus is got to two-chamber, includes the pipe main part, sets up in the sacculus portion of pipe main part front end and sets up in the handle portion of pipe main part rear end, wherein, inside first passageway and the second passageway of being equipped with of pipe main part, first passageway and second passageway link to each other with first handle and second handle respectively, first passageway is used for doing sacculus portion is aerifyd, the second passageway is used for injecting into the contrast medium and carries out the biliary tract radiography, the front end of sacculus portion is equipped with the head, the head is the single channel pipe, is equipped with the seal wire clearing hole that supplies the seal wire to pass on its pipe wall, and during the use, the tail end of seal wire passes head anterior segment and seal wire clearing hole in proper order, injects the contrast medium through the second handle and carries out biliary tract radiography, injects gaseous.

Furthermore, the head comprises a head front section and a head pipe section, the head front section is in a circular truncated cone shape, the cross-sectional area of the front end of the head front section is smaller than that of the rear end of the head front section, the head pipe section is in a cylindrical shape, and the guide wire is arranged on the pipe wall of the head pipe section through a hole.

Furthermore, the outer surface of the balloon part is wrapped with the balloon, a second metal fixing ring and a third metal fixing ring are arranged at two ends of the balloon part, the catheter main body where the balloon part is located is a double-channel tube, the end part of the first channel is connected with the balloon, and the end part of the second channel is connected with the head tube section.

Furthermore, a first metal fixing ring is arranged at the front section of the guide wire passing hole.

Furthermore, the tail end of the catheter main body is connected with the handle part through the injection molding connector and the connecting pipe, the first handle and the second handle are respectively connected with the first connecting pipe and the second connecting pipe, and a preset angle exists between the first connecting pipe and the contact end of the second connecting pipe and the injection molding connector.

Furthermore, the first connecting pipe and the second connecting pipe are both single-channel pipes, and the tail parts of the first connecting pipe and the second connecting pipe are provided with connecting pipe joints.

Further, the outer diameter of the catheter main body is less than 2mm, and the length of the catheter main body is 150-200 cm.

Furthermore, transverse ridges are arranged on the surface of the balloon, the adjacent transverse ridges are arranged in a staggered manner, and the transverse ridges on the surface of the balloon are used for scraping bile mud and sand-like calculi adhered to the surface of the wall of the bile duct.

The utility model has the advantages of it is following:

1. the utility model arranges the guide wire side hole on the catheter in front of the saccule, and can fix the guide wire by using the guide wire lock in the process of removing stones or placing the saccule catheter, thereby avoiding the guide wire from being dragged out when the guide wire is placed too deep to cause pain or removing stones;

2. the saccule and the body part of the utility model are not provided with the guide wire channel, and only provided with the injection channel and the saccule channel, so that the main body of the catheter can be made thinner, and the requirements on the manufacturing process and materials are lower;

3. the utility model discloses seal wire side opening the place ahead is equipped with the becket, can prevent to get the stone in-process, and the seal wire cuts the pipe wall open.

Based on the above reasons, the utility model can be widely popularized in the technical fields of minimally invasive medical technology and surgical instruments.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of a first state of the embodiment of the present invention.

Fig. 2 is a schematic view of the first state after the guide wire is introduced into the embodiment of the present invention.

Fig. 3 is a schematic diagram of a second state of the embodiment of the present invention.

Fig. 4 is a schematic view of a head structure according to an embodiment of the present invention.

Fig. 5 is a perspective view of the head structure of the embodiment of the present invention.

Fig. 6 is the structural schematic diagram of the double-cavity calculus removing balloon with transverse ridges of the present invention.

Fig. 7 is a schematic view of the arrangement of the transverse ridges of fig. 6.

In the figure: 1. a catheter body; 2. a balloon portion; 3. injection molding a connector; 4. a first connecting pipe; 5. a second connecting pipe; 6. a guide wire; 7. a first channel; 8. a second channel; 9. the guide wire passes through the hole; 10. a head portion; 101. a head front section; 102. a head section; 11. a first metal retaining ring; 12. a second metal retaining ring; 13. a third metal retaining ring; 14. connecting a pipe joint; 15. a guidewire channel; 16. transverse ridge.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment of the present invention discloses a double-lumen lithotomy balloon, which comprises a catheter main body 1, a balloon portion 2 disposed at the front end of the catheter main body 1, and a handle portion disposed at the rear end of the catheter main body 1, wherein a first channel 7 and a second channel 8 are disposed inside the catheter main body 1, the first channel 7 and the second channel 8 are respectively connected with the first handle and the second handle, the first channel 7 is used for inflating the balloon portion 2, the second channel 8 is used for injecting contrast agent for cholangiography, the front end of the balloon portion 2 is provided with a head portion 10, the head portion 10 is a single-channel tube, and a guide wire through hole 9 for a guide wire to pass is disposed on the tube wall of the head portion, as shown in fig. 2, when in use, the tail end of the guide wire 6 sequentially passes through a head front segment 101 and the guide wire through hole 9, the second channel 8 is communicated with the head single-channel tube, contrast agent is injected through the, injecting gas through the first handle to fill the saccule for calculus removal.

As shown in fig. 4, the head 10 includes a head front section 101 and a head pipe section 102, the head front section 101 is in a truncated cone shape, the cross-sectional area of the front end is smaller than that of the rear end, the head pipe section 102 is in a cylindrical shape, a guide wire is arranged on the pipe wall through a hole 9, and the single-channel pipe of the head front section 101 serves as a guide wire channel 15 and also as a contrast channel (a second channel 8). In this embodiment, the guide wire is curved through the aperture 9 to facilitate exit of the guide wire 6, as shown in figure 5.

As shown in fig. 3, the outer surface of the balloon portion 2 is wrapped by a balloon, and two ends of the balloon portion are provided with a second metal fixing ring 12 and a third metal fixing ring 13, which are used for fixing a balloon film, and simultaneously, the insertion depth of the drainage tube can be positioned under fluoroscopy. The catheter body 1 in which the balloon portion 2 is located is a dual channel tube, the end of the first channel 7 being connected to the balloon and the end of the second channel 8 being connected to the head tube segment 102.

The tail end of the catheter main body 1 is connected with the handle part through the injection molding connector 3 and the connecting pipe, the first handle and the second handle are respectively connected with the first connecting pipe 4 and the second connecting pipe 5, and a preset angle exists between the first connecting pipe 4 and the contact end of the second connecting pipe 5 and the injection molding connector 3. The first connecting pipe 4 and the second connecting pipe 5 are both single-channel pipes, and the tail parts of the single-channel pipes are provided with connecting pipe joints 14.

In the process that the balloon is dragged outwards to take stones, because the guide wire is fixed, resistance can be formed on the tube wall in front of the guide wire, the guide wire is thin, and the cutting effect can be generated due to overlarge pulling force, and therefore, in order to prevent the tube wall from being cut, as a preferred embodiment, the front section of the guide wire through hole 9 is provided with a first metal fixing ring 11.

The outer diameter of the catheter main body 1 is less than 2mm, and the length of the catheter main body is 150-200 cm.

As shown in fig. 6 and 7, as an alternative embodiment, the balloon surface is further provided with transverse ridges 16, the adjacent transverse ridges 16 are staggered, and the transverse ridges 16 on the balloon surface are used for scraping the bile mud and sand-like stones adhered to the wall surface of the bile duct.

The duodenoscope is placed through the mouth, after bile duct intubation succeeds, a guide wire is placed through an opening at the head end of the balloon catheter, the guide wire is led out through a side hole at the front end of the balloon, and after the balloon catheter enters a duodenoscope channel, the guide wire is locked by using a guide wire lock, so that the guide wire is prevented from moving inside and outside. The balloon catheter is placed above the calculus, gas is injected to fill the balloon, the balloon catheter is pulled, and the choledocholithiasis and the cholelithiasis adhered to the wall of the choledocholithiasis and the cholelithiasis are pulled into the duodenum.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a stone sacculus is got to two-chamber, includes the pipe main part, sets up in the sacculus portion of pipe main part front end and sets up in the handle portion of pipe main part rear end, its characterized in that, inside first passageway and the second passageway of being equipped with of pipe main part, first passageway and second passageway link to each other with first handle and second handle respectively, first passageway is used for doing sacculus portion is aerifyd, the second passageway is used for injecting into the contrast medium and carries out the biliary tract radiography, the front end of sacculus portion is equipped with the head, the head is the single channel pipe, is equipped with the seal wire clearing hole that supplies the seal wire to pass on its pipe wall, and during the use, the tail end of seal wire passes head anterior segment and seal wire clearing hole in proper order, injects the contrast medium through the second handle and carries out biliary tract radiography, injects.

2. The dual-cavity lithotomy balloon of claim 1, wherein the head comprises a head front section and a head pipe section, the head front section is in a shape of a truncated cone, the cross-sectional area of the front end of the head front section is smaller than that of the rear end of the head front section, the head pipe section is in a shape of a cylinder, and a guide wire is arranged on the pipe wall of the head pipe section through a hole.

3. The dual-cavity calculus removing balloon according to claim 1, wherein the balloon portion is wrapped on the outer surface of the balloon portion, second metal fixing rings and third metal fixing rings are arranged at two ends of the balloon portion, the catheter main body where the balloon portion is located is a dual-channel tube, the end portion of the first channel is connected with the balloon, and the end portion of the second channel is connected with the head tube section.

4. The dual-lumen lithotomy balloon according to claim 1, wherein the guide wire is provided with a first metal fixing ring at the front section of the passage hole.

5. The dual-cavity calculus removing balloon according to claim 1, wherein the tail end of the catheter body is connected with the handle part through an injection-molded connector and a connecting pipe, the first handle and the second handle are respectively connected with the first connecting pipe and the second connecting pipe, and the first connecting pipe and the second connecting pipe are at a preset angle with the contact end of the injection-molded connector.

6. The dual-cavity calculus removing balloon according to claim 5, wherein the first connecting tube and the second connecting tube are both single-channel tubes, and the tail part of the first connecting tube and the second connecting tube is provided with a connecting tube joint.

7. The dual-cavity calculus removal balloon of claim 1, wherein the catheter body has an outer diameter of <2mm and a length of 150-200 cm.

8. The dual-cavity calculus removing balloon according to any one of claims 1 to 7, wherein transverse ridges are arranged on the surface of the balloon, adjacent transverse ridges are staggered, and the transverse ridges on the surface of the balloon are used for scraping bile mud and sand-like calculus adhered to the surface of the wall of the bile duct.