CN213131500U

CN213131500U - Direct puncture type fistulous tract is expanded type drainage tube step by step

Info

Publication number: CN213131500U
Application number: CN202020349593.3U
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 direct puncture fistula tract step-by-step expansion drainage tube belongs to the technical field of medical instrument manufacturing. The utility model comprises a drainage tube, a supporting tube and a needle core which are connected with the tail part; the drainage tube is divided into a head part, a body part, a tail part and a connector, the head part is a single-channel loop tube, a side hole is arranged on the wall of the head part, and a traction wire connected to the outer side of the tube wall at the front end sequentially enters the channel I, the channel II, the channel IV and a through hole in the tube wall at the tail end of the tail part through the through hole in the wall at the tail end of the head part; the body part comprises a channel II and a channel III, the channel II is communicated with the channel I, the body part is concave and is wrapped with a cylindrical saccule membrane, and a cavity of the cylindrical saccule membrane is communicated with the channel III through a hole; the tail part comprises a channel IV and a channel V, the channel IV is communicated with a channel II, the channel V is communicated with a channel III, the connector is provided with a connector I and a connector II, the connector I is communicated with the channel IV, the connector II is communicated with the channel V, and the outer wall of the connector is provided with a traction line clamping groove. Has the advantages of small injury, few complications and simple operation.

Description

Direct puncture type fistulous tract is expanded type drainage tube step by step

Technical Field

The utility model belongs to the technical field of medical instrument makes, a direct puncture type fistulous way dilated 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 nowadays, laparoscope and choledochoscope technologies are increasingly developed, and cholecystotomy and biliary tract exploration lithotomy under the laparoscope become important means for treating 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 general anesthesia risk and 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 into the gallbladder and the bile duct through the fistula tract to perform stone breaking and stone removal. 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 direct puncture fistula tract step-by-step expansion drainage tube with small damage, less complication and simple operation.

The utility model comprises a drainage tube 1 and a supporting tube 2; the drainage tube 1 is divided into a head part 3, a body part 4, a tail part 5 and a connector 6, wherein the head part 3 is a single-channel loop tube, a channel I7 is arranged in the head part 3, a side hole 8 is arranged on the tube wall of the head part 3, the outer side of the tube wall at the front end is connected with a traction wire 9, and the traction wire 9 enters the channel I7 through the through hole on the tail end wall of the head part 3; the body part 4 is a double-channel drainage tube and comprises a channel II 10 and a channel III 11, the channel II 10 is communicated with a channel I7, a traction line 9 passes through the channel II 10, the body part 4 is concave and is wrapped with a cylindrical balloon 12 membrane, the cylindrical balloon 12 is in a membrane shape when not filled, two ends of the cylindrical balloon 12 membrane are fixed on the body part 4, and a through hole is formed in the membrane cavity of the cylindrical balloon 12 and communicated with the channel III 11; the tail part 5 is a double-channel tube and comprises a channel IV 13 and a channel V14, the channel IV 13 is communicated with a channel II 10, the channel V14 is communicated with a channel III 11, and the traction wire 9 is led out through the channel IV 13 and through holes on the tube wall at the tail end of the tail part 5; the connector 6 is provided with a connector I15 and a connector II 16, the connector I15 is communicated with a channel IV 13, the connector II 16 is communicated with a channel V14, the outer wall of the connector 6 is provided with a traction line clamping groove 17, and the outer wall of the connector I15 at the tail end of the connector 6 is provided with a spiral groove I18; the support tube 2 is a single-channel tube, the tail part of the support tube is provided with a single-channel connecting cap I19, the inner wall of the connecting cap I19 is provided with a spiral groove II 20, the outer wall of the connecting cap I19 is provided with a spiral groove III 22, the support tube 2 is arranged in the drainage tube 1, and the spiral groove II 20 is matched and connected with a spiral groove I18 on the outer wall of a connector I15 on the drainage tube 1; the tail end of the needle core 23 is provided with a connecting cap II 25, the inner wall of the connecting cap II 25 is provided with a spiral groove IV 24, the needle core 23 is arranged in the supporting tube 2, and the spiral groove IV 24 is matched and connected with a spiral groove III 22 on the outer wall of a connecting cap I19 at the tail end of the supporting tube 2;

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

the support tube 2 is 60-100cm long, and has an outer diameter of 4.5Fr and an inner diameter of 3.5 Fr;

the needle core 23 is 60.5-100.5cm long and has an outer diameter of 3 Fr;

the outer diameter of the cylindrical saccule 12 is 8-11 Fr;

the outer diameter of the cylindrical saccule 12 is 12-15 Fr;

the outer diameter of the cylindrical saccule 12 is 16-19 Fr;

1-10 side holes 8 are formed;

the number of the side holes 8 is 5;

the two ends of the cylindrical saccule 12 are fixed on the body part 4 by metal rings;

the cylindrical balloon 12 is a plastic balloon;

the supporting tube 2 is a single-channel metal tube;

the needle core 23 is a solid needle with a conical head.

The utility model has the advantages that:

1. the device can be directly punctured into the gall bladder through the skin under local anesthesia, the operation process is simplified, a guide wire and a puncture needle are not needed, the operation time and the medical cost are saved, and complications such as abdominal pain and the like caused by bile entering an abdominal cavity in the conventional puncturing process are avoided;

2. the device has variable saccule diameter and is suitable for gall bladder puncture with all properties and sizes;

3. the balloon type of the device is complete, but the type of the drainage tube is 7Fr, so that the device is easy to be put into a fistula tract.

Drawings

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

figure 2 is a schematic view of the support tube of the present invention,

figure 3 is a schematic view of the inventive stylet,

figure 4 is a schematic view of the invention after assembly,

figure 5 is a schematic view of the present invention tightening the pull wire and dilating the fistula tract,

the medical drainage tube comprises a drainage tube 1, a support tube 2, a head 3, a body 4, a tail 5, a connector 6, a channel I7, a side hole 8, a traction wire 9, a channel II 10, a channel III 12, a cylindrical balloon 13, a channel IV, a channel V, a connector I15, a connector II 16, a connector II 17, a traction wire clamping groove 18, a spiral groove I19, a connecting cap I, a connecting cap 20, a spiral groove II, a pressure pump 21, a spiral groove III, a needle core 23, a spiral groove IV, a spiral groove 25 and a connecting cap II.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model comprises a drainage tube 1 and a supporting tube 2; the length of the drainage tube 1 is 90cm, the outer diameter is 7Fr, the inner diameter is 5Fr, the length of the support tube 2 is 900cm, the outer diameter is 4.5Fr, and the inner diameter is 3.5 Fr; the needle core 23 is 90.5cm long and has an outer diameter of 3 Fr; the drainage tube 1 is divided into a head part 3, a body part 4, a tail part 5 and a connector 6, wherein the head part 3 is a single-channel loop tube, a channel I7 is arranged in the

head part

3, 5 side holes 8 are arranged on the tube wall of the head part 3, the outer side of the tube wall at the front end is connected with a traction wire 9, and the traction wire 9 enters the channel I7 through a through hole on the tail end wall of the head part 3; the body part 4 is a double-channel drainage tube and comprises a channel II 10 and a channel III 11, the channel II 10 is communicated with a channel I7, a traction line 9 passes through the channel II 10, the body part 4 is concave and is wrapped with a plastic cylindrical saccule 12 which has an outer diameter of 8-11Fr and is film-shaped when not filled, two ends of the film of the plastic cylindrical saccule 12 are fixed on the body part 4 by metal rings, and a through hole is arranged in the film cavity of the plastic cylindrical saccule 12 and communicated with the channel III 11; the tail part 5 is a double-channel tube and comprises a channel IV 13 and a channel V14, the channel IV 13 is communicated with a channel II 10, the channel V14 is communicated with a channel III 11, and the traction wire 9 is led out through the channel IV 13 and through holes on the tube wall at the tail end of the tail part 5; the connector 6 is provided with a connector I15 and a connector II 16, the connector I15 is communicated with a channel IV 13, the connector II 16 is communicated with a channel V14, the outer wall of the connector 6 is provided with a traction line clamping groove 17, and the outer wall of the connector I15 at the tail end of the connector 6 is provided with a spiral groove I18; the support tube 2 is a single-channel metal tube, the tail part of the support tube is provided with a single-channel connecting cap I19, the inner wall of the connecting cap I19 is provided with a spiral groove II 20, the outer wall of the connecting cap I19 is provided with a spiral groove III 22, the support tube 2 is arranged in the drainage tube 1, and the spiral groove II 20 is matched and connected with a spiral groove I18 on the outer wall of a connector I15 on the drainage tube 1; the tail end of the needle core 23 is provided with a connecting cap II 25, the inner wall of the connecting cap II 25 is provided with a spiral groove IV 24, the needle core 23 is a solid needle with a conical head end, the needle core 23 is arranged in the supporting tube 2, and the spiral groove IV 24 is matched and connected with a spiral groove III 22 on the outer wall of a connecting cap I19 at the tail end of the supporting tube 2;

after the device is directly punctured into the designated positions of organs such as bile ducts, gall bladders and the like through the skin under the ultrasonic guidance, the needle core 23 is withdrawn, the inner core 2 is withdrawn to the lower part of the head end, the traction wire 9 is tightened, the head end of the traction wire is a loop, the traction wire 9 is fixed through a buckle on a tube wall connector, the inner core 2 is completely withdrawn, the connector II 16 on the connector 6 is connected with the pressure pump 21, physiological saline containing a contrast agent is gradually injected, the cylindrical balloon 12 is slowly filled to expand a fistula tract to the maximum diameter of the cylindrical balloon 12, and the connector I15 is connected with a drainage bag to drain bile.

Claims

1. A direct puncture fistula gradual expansion drainage tube comprises a drainage tube (1), and is characterized by also comprising a support tube (2) and a stylet (23); the drainage tube (1) is divided into a head part (3), a body part (4), a tail part (5) and a connector (6), wherein the head part (3) is a single-channel loop tube, a channel I (7) is arranged in the single-channel loop tube, a side hole (8) is formed in the tube wall of the head part (3), the outer side of the tube wall at the front end is connected with a traction wire (9), and the traction wire (9) enters the channel I (7) through the through hole in the tail end wall of the head part (3); the body part (4) is a double-channel drainage tube and comprises a channel II (10) and a channel III (11), the channel II (10) is communicated with the channel I (7), a traction wire (9) passes through the channel II (10), the body part (4) is concave and is wrapped with a cylindrical saccule (12) membrane, two ends of the cylindrical saccule (12) membrane are fixed on the body part (4), and a through hole is formed in the membrane cavity of the cylindrical saccule (12) and communicated with the channel III (11); the tail part (5) is a double-channel pipe and comprises a channel IV (13) and a channel V (14), the channel IV (13) is communicated with a channel II (10), the channel V (14) is communicated with a channel III (11), and the traction wire (9) is led out through holes in the pipe walls of the tail ends of the channel IV (13) and the tail part (5); the connector (6) is provided with a connector I (15) and a connector II (16), the connector I (15) is communicated with the channel IV (13), the connector II (16) is communicated with the channel V (14), the outer wall of the connector (6) is provided with a pull wire clamping groove (17), and the outer wall of the connector I (15) at the tail end of the connector (6) is provided with a spiral groove I (18); the support tube (2) is a single-channel tube, the tail part of the support tube is provided with a single-channel connection cap I (19), the inner wall of the connection cap I (19) is provided with a spiral groove II (20), the outer wall of the connection cap I (19) is provided with a spiral groove III (22), the support tube (2) is arranged in the drainage tube (1), and the spiral groove II (20) is in fit connection with the spiral groove I (18) on the outer wall of the connector I (15) on the drainage tube (1); the tail end of the needle core (23) is provided with a connecting cap II (25), the inner wall of the connecting cap II (25) is provided with a spiral groove IV (24), the needle core (23) is arranged in the supporting tube (2), and the spiral groove IV (24) is matched and connected with a spiral groove III (22) on the outer wall of the connecting cap I (19) at the tail end of the supporting tube (2).

2. A direct puncture fistula stepwise expanding drainage tube according to claim 1, wherein the drainage tube (1) has a length of 60-100cm, an outer diameter of 7Fr and an inner diameter of 5 Fr; the length of the supporting tube (2) is 60-100cm, the outer diameter is 4.5Fr, and the inner diameter is 3.5 Fr; the needle core (23) is 60.5-100.5cm long and has an outer diameter of 3 Fr.

3. A direct-penetration fistula tract step-by-step dilatation catheter as claimed in claim 1, wherein the cylindrical balloon (12) has an outer diameter of 8-11 Fr.

4. A direct-penetration fistula tract step-by-step dilatation catheter as claimed in claim 1, wherein the cylindrical balloon (12) has an outer diameter of 12-15 Fr.

5. A direct-penetration fistula tract step-by-step dilatation catheter as claimed in claim 1, wherein the cylindrical balloon (12) has an outer diameter of 16-19 Fr.

6. A direct puncture fistula tract step-by-step dilatation catheter as claimed in claim 1, wherein the number of side holes (8) is 1-10.

7. A direct puncture fistula tract step-by-step dilatation catheter as claimed in claim 1 or claim 6, wherein the number of side holes (8) is 5.