CN213131503U

CN213131503U - Fistulous tract progressive-expansion drainage tube with balloon

Info

Publication number: CN213131503U
Application number: CN202020349990.0U
Authority: CN
Inventors: 宋玲玲; 张�诚
Original assignee: Affiliated Zhongshan Hospital of Dalian University
Current assignee: Affiliated Zhongshan Hospital of Dalian University
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2021-05-07
Anticipated expiration: 2030-03-19

Abstract

A fistulous tract progressive-expansion drainage tube with a balloon belongs to the technical field of medical instrument manufacturing. The utility model comprises a drainage tube and an inner core, wherein the head part of the drainage tube head is conical, and is provided with a spherical air bag and a cylindrical air bag with variable outer diameter, and the tail part of a water injection channel arranged in the drainage tube head is provided with a connector; a side hole is arranged on the pipe wall between the spherical air bag and the cylindrical air bag; the surface of the connector at the tail part of the drainage tube is provided with threads, the tail part of the inner core is provided with a connecting cap, the threads are arranged in the connecting cap and are matched with the threads on the surface of the tail part structure of the drainage tube, the inner core is arranged in the drainage tube, and the connector at the tail part is screwed tightly. The utility model discloses the beneficial effect who reaches is, and this device head end sets up spherical gasbag, avoids the drainage tube to shift, and this device somatic part sets up the cylindricality gasbag, takes the mode of pressurizeing gradually to expand the fistula gradually and says, can not cause the fistula to say and tear the hemorrhage, and side effects such as pain are littleer.

Description

Fistulous tract progressive-expansion drainage tube with balloon

Technical Field

The utility model belongs to the technical field of medical instrument makes, a take fistula of sacculus way expansion type drainage tube step by step is related to.

Background

Calculus of gallbladder and intrahepatic and extrahepatic bile ducts is a common disease and can induce complications such as acute and chronic cholecystitis, cholangitis, obstructive jaundice, biliary tumors and the like. The traditional treatment modes of gallstones are abdominal cholecystectomy and liver lobe resection, and the laparoscopic and choledochoscope technology is increasingly developed nowadays, and the cholecystotomy and the biliary tract exploration lithotomy under the laparoscope become important means for treating the gallstones.

No matter the cholecystotomy is performed under a laparoscope, the biliary tract exploration calculus extraction needs to be performed under general anesthesia. For the elderly and high-risk patients who can not tolerate the general anesthesia risk and the patients who receive a plurality of laparotomy operations, percutaneous transhepatic cholecystectomy and bile duct puncture drainage can be adopted firstly, then the fistula tract is gradually expanded, and when the fistula tract is expanded to more than 16Fr, a choledochoscope can be placed through the fistula tract to enter the gallbladder and lithotript in the duct. Fistulous tract expansion comprises two modes, wherein one mode is that different types of hard expansion tubes are used for expanding the fistulous tract in one operation, but the mode still needs to be completed under the general anesthesia state, complications such as bleeding, liver abscess and gallbladder leakage easily occur, the other mode is that a biliary tract drainage tube with a thicker type is replaced discontinuously, anesthesia is not needed in the mode, but the interval between two operations is longer, so that the disease treatment time is longer. If the interval time is shorter or a drainage tube with a thicker model is selected, the pain of the patient is increased, and the difficulty of tube placement is also increased.

Disclosure of Invention

The utility model aims at providing a fistulous way of taking sacculus expands type drainage tube step by step that the biggest expansion diameter of column type gasbag is variable, need not anesthesia, the damage is little, the complication is few, easy operation.

The utility model comprises a drainage tube 1 and an inner core 2, wherein the tail part of the drainage tube 1 and the tail part of the inner core 2 are connected with an external thread 3 arranged on the outer surface of the tail joint of the drainage tube 1; the tail part of the inner core 2 is provided with a connecting cap 5, and the inner surface of the connecting cap 5 is provided with an internal thread 4; the external thread 3 is matched with the internal thread 4, the inner core 2 is arranged in the drainage tube 1, and the external thread 3 and the internal thread 4 of the tail joint are screwed tightly; a spherical air bag 11 is arranged on the drainage tube 1, a water injection channel I6 is arranged in the spherical air bag 11 and is connected with a connector I8 arranged at the tail part of the drainage tube 1; a cylindrical air bag 12 is arranged on the drainage tube 1, a water injection channel II 7 is arranged in the cylindrical air bag 12 and is connected with a connector II 9 arranged at the tail part of the drainage tube 1; a side hole 10 is arranged on the wall of the drainage tube 1 between the spherical air bag 11 and the cylindrical air bag 12;

the head of the drainage tube head 1 is conical;

the length of the drainage tube 1 is 60-100cm, the outer diameter is 7Fr, and the inner diameter is 5 Fr;

the length of the inner core 2 is 60-100cm, the outer diameter is 4.5Fr, and the inner diameter is 3.5 Fr;

the diameter of the spherical air bag 11 is 0.6-2 cm;

the outer diameters of the cylindrical air bags 12 are respectively in the range of 8-11Fr, 12-15Fr and 16-19 Fr;

1-10 side holes 10 are arranged on the tube wall of the drainage tube 1;

the number of the side holes 10 arranged on the tube wall of the drainage tube 1 is 5;

the upper part of the inner core 2 is provided with a non-slip mat 13.

The utility model has the advantages that:

1. the balloon type of the device is complete, but the type of the drainage tube is 7Fr, so the device is easy to be placed in a fistula tract;

2. the saccule is arranged at the head end of the device, so that the displacement of the drainage tube is avoided;

3. this device somatic part sets up the cylindricality gasbag, takes the mode of pressurizeing gradually to expand the fistula gradually and says, can not cause the fistula to say the laceration hemorrhage, and side reaction such as pain is littleer.

4. The maximum expansion diameter of each column-shaped air sac expansion saccule is variable, and the times of replacing the drainage tube can be reduced. The fistula tract has less side effects such as lacerated bleeding and pain.

Drawings

FIG. 1 is a schematic view of a drainage tube of the present invention;

figure 2 is a schematic view of the inner core of the present invention;

FIG. 3 is an assembled schematic view of the present invention;

FIG. 4 is a schematic view of the inflated spherical head bladder of the present invention;

FIG. 5 is a schematic view of the inflated expanded cylindrical balloon of the present invention;

fig. 6 is a schematic view of the present invention being placed in a desired location to expand a fistula tract.

The drainage tube comprises a drainage tube 1, an inner core 2, an outer thread 3, an inner thread 4, a connecting cap 5, a water injection channel I6, a water injection channel II 7, a water injection channel II 8, a connector I9, a connector II 10, a side hole 11, a spherical air bag 12, a cylindrical air bag 13, an anti-skid pad A, a section B and a section B.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

The utility model comprises a drainage tube 1 and an inner core 2; the upper part of the inner core 2 is provided with an anti-skid pad 13; the outer surface of the connector at the tail part of the drainage tube 1 is provided with an external thread 3; the tail part of the inner core 2 is provided with a connecting cap 5, and the inner surface of the connecting cap 5 is provided with an internal thread 4; the external thread 3 is matched with the internal thread 4, the inner core 2 is arranged in the drainage tube 1, the external thread 3 and the internal thread 4 of the tail joint are screwed, and the tail part of the drainage tube 1 is connected with the tail part of the inner core 2; the head of the drainage tube head 1 is conical; the length of the drainage tube 1 is 90cm, the outer diameter is 7Fr, and the inner diameter is 5 Fr; the inner core 2 is 90cm long, the outer diameter is 4.5Fr, and the inner diameter is 3.5 Fr; a spherical air bag 11 is arranged on the drainage tube 1, a water injection channel I6 is arranged in the spherical air bag 11 and is connected with a connector I8 arranged at the tail part of the drainage tube 1; the diameter of the spherical air bag 11 is 1.5 cm; a cylindrical air bag 12 is arranged on the drainage tube 1, a water injection channel II 7 is arranged in the cylindrical air bag 12 and is connected with a connector II 9 arranged at the tail part of the drainage tube 1; the outer diameter of the cylindrical air bag 12 is changed within the range of 12-15 Fr; 5 side holes 10 are arranged on the wall of the drainage tube 1 between the spherical air sac 11 and the cylindrical air sac 12.

The section A above is a tube sac or bile duct, the abdominal wall and liver parenchyma are arranged between the section A and the section B, and the section B is skin.

The seal wire is put into through former drainage tube under supersound or X-ray supervision, keeps the seal wire and will withdraw from former drainage tube, puts into drainage tube 1 with inner core 2 and screws up the end connection, puts into under the guide wire guide the utility model discloses the device, after putting into bile duct establishment position with this device, to connecting I8 in pour into containing contrast agent normal saline, spherical gasbag 11 size is unanimous with bile duct wall diameter, prevents that the drainage tube from removing, withdraws from inner core 2, uses the pressure pump to connect II 9 in be interrupted to pour into containing contrast agent normal saline, fills cylindricality gasbag 12 gradually, slowly expands the fistula way, drainage tube 1 end connection drainage bag drainage bile.

Claims

1. A fistulous tract progressive-expansion drainage tube with a balloon comprises a drainage tube (1) and is characterized by further comprising an inner core (2), wherein external threads (3) are arranged on the outer surface of a tail joint of the drainage tube (1); the tail part of the inner core (2) is provided with a connecting cap (5), and the inner surface of the connecting cap (5) is provided with an internal thread (4); the external thread (3) is connected with the internal thread (4); a spherical air bag (11) is arranged on the drainage tube (1), a water injection channel I (6) is arranged in the spherical air bag (11) and is connected with a connector I (8) arranged at the tail part of the drainage tube (1); a cylindrical air bag (12) is arranged on the drainage tube (1), and a water injection channel II (7) is arranged in the cylindrical air bag (12) and is connected with a connector II (9) arranged at the tail part of the drainage tube (1).

2. The fistulous tract step-by-step dilatation catheter with balloon according to claim 1 characterized by that the length of the catheter (1) is 60-100cm, the outer diameter is 7Fr and the inner diameter is 5 Fr; the inner core (2) has a length of 60-100cm, an outer diameter of 4.5Fr and an inner diameter of 3.5 Fr.

3. A balloon-based fistula-tract step-expansion drainage tube according to claim 1, wherein the spherical balloon (11) has a diameter of 0.6-2 cm.

4. A balloon-based fistula-tract step-expansion drainage tube according to claim 1, wherein the cylindrical balloon (12) has an outer diameter of 8-11 Fr.

5. A balloon-based fistula-tract step-expansion drainage tube according to claim 1, wherein the cylindrical balloon (12) has an outer diameter of 12-15 Fr.

6. A balloon-based fistula progressive dilation drainage tube according to claim 1, wherein the cylindrical balloon (12) has an outer diameter of 16-19 Fr.

7. A balloon-based fistula tract step-wise dilatation catheter according to claim 1, 2, 3, 4, 5 or 6 wherein a side hole (10) is provided in the wall of the catheter (1) between the spherical balloon (11) and the cylindrical balloon (12).

8. The fistulous tract step-by-step dilatation catheter with balloon according to claim 7 wherein there are 1-10 side holes (10) on the wall of the catheter (1).

9. The fistulous tract step-by-step dilatation catheter with balloon according to claim 8 wherein there are 5 side holes (10) on the wall of the catheter (1).

10. The fistulous tract step-by-step dilatation catheter with balloon according to claim 1 characterized in that the upper part of the inner core (2) is provided with a non-slip mat (13).