CN203107956U - Biliary tract expansion T-shaped double-cavity drainage tube - Google Patents

Abstract

The utility model relates to a biliary tract expansion T-shaped double-cavity drainage tube which can effectively achieve the objectives that bile is drained after a bile duct opposite-end anastomosis repairing operation, a bile duct can be gradually expanded after the operation, a biliary tract is supported and expanded to avoid that a bile duct anastomotic incision is narrowed at a specific future date, physical integrity of the biliary tract is recovered, and the biliary tract is prevented from damage. According to the technical scheme, the middle of a short drainage catheter is perpendicularly connected with one end of a long drainage catheter to form a T-shaped drainage structure with pipes and cavities communicated, an air inlet pipe is integrally connected on the inner wall of the long drainage catheter, the outer end of the air inlet pipe extends out of the outer side wall of the other end of the long drainage catheter, the inner end of the air inlet pipe is communicated with a balloon which is arranged outside the short drainage catheter in a sealed mode, the long drainage catheter and the short drainage catheter form a double-cavity structure, the short drainage catheter and the balloon are of a concentric oval shape, positioning displaying symbols are arranged in positions of the short drainage catheter, and two ends of the short drainage catheter are connected with the sealed inner face of the balloon in the positions. The biliary tract expansion T-shaped double-cavity drainage tube is low in cost, convenient to use and capable of being effectively used for a one-stage operation for bile duct injuries, and the expansion effect is progressive and adjustable.

Description

Biliary tract expansion T type two-chamber drainage tube

Technical field

This utility model relates to armarium, particularly a kind of biliary tract expansion T type two-chamber drainage tube.

Background technology

Gallbladder disease is common frdquently encountered disease, extensively carrying out and laparoscopically popularization and application along with operation on biliary tract particularly, the incidence rate of bile duct injury has the trend of increasing, left and right sides common hepatic duct converges the back and forms common hepatic duct, hepatoduodenal ligament bottom right edge descending with cystic duct converge the formation common bile duct, descending in proper hepatic artery right side and portal vein right front, enter the back inwall in the duodenum rear and be opened on vater's papilla.Adult's common bile duct diameter 6-8mm, long 70-90mm, the about 5mm of common hepatic duct diameter, common hepatic duct and cystic duct meet are easily accidentally injured often at gallbladder removal, stenosis of bile duct may take place in postoperative, and produces complication, and this can bring misery to the patient undoubtedly, influence rehabilitation, for solving the appearance of this type of phenomenon, though now be useful on the T type drainage tube of the anastomosis of gallbladder intestinal, be 200420095834.7 the identical drainage tube of biliary enteric anastomosis as application number, certain result of use is arranged, but owing to adopt the many balloon structure of multi-cavity, complex structure, troublesome poeration, result of use is unsatisfactory, thus the improvement on the biliary stent and innovate imperative.

Summary of the invention

At above-mentioned situation, for solving the defective of prior art, the purpose of this utility model just provides a kind of biliary tract expansion T type two-chamber drainage tube, can effectively solve biliary drainage behind the bile duct end to-end anastomosis prothesis, again can postoperative gradual expansion bile duct, the biliary tract of prevention bile duct anastomotic stricture at a specified future date supports expansion, recover biliary tract physiology integrity, prevent the problem of biliary duct injury.

The technical solution of the utility model is, comprise drain tubulature and drain long duct, drain tubulature middle part vertically links to each other with drain long duct one end, constitute the T type flow guiding structure of tube chamber intercommunication, on the drain long duct inwall air inlet pipe that is connected as a single entity is arranged, drain long duct other end lateral wall is stretched out in the air inlet pipe outer end, air inlet pipe the inner is connected with the sacculus that sealing is contained in drain tubulature outside, drain long duct and air inlet pipe constitute double cavity structure, drain tubulature and sacculus are concentric Long Circle, and drain tubulature two ends and sacculus sealing inner face connecting place are equipped with the locating and displaying sign at the drain tubulature.

This utility model is simple in structure, easily manufacture, and low cost of manufacture, easy for operation, dilating effect is gradual adjustable, is effective in the biliary duct injury one-stage operation, avoids iatrogenic property biliary duct injury second phase treatment to wait as long for operation, alleviate patient's misery greatly, be beneficial to patient's rehabilitation.

Description of drawings

The front view that Fig. 1 cuts open for this utility model sacculus.

Fig. 2 is the A-A profile of this utility model drain long duct.

Fig. 3 is that the B-B of this utility model drain tubulature is to cross section view.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.

Shown in Fig. 1-3, this utility model comprises drain tubulature and drain long duct, drain tubulature 4 middle parts vertically link to each other with drain long duct 1 one ends, constitute the T type flow guiding structure of tube chamber 8 intercommunications, the air inlet pipe 6 that is connected as a single entity is arranged on the drain long duct inwall, drain long duct other end lateral wall is stretched out in the air inlet pipe outer end, air inlet pipe 6 the inners are connected with the sacculus 2 that sealing is contained in drain tubulature 4 outsides, drain long duct and air inlet pipe constitute double cavity structure, drain tubulature and sacculus are concentric Long Circle, and drain tubulature 4 two ends and sacculus 2 sealing inner face connecting places are equipped with locating and displaying sign 5 at the drain tubulature.

The outer end 7 of described drain long duct and air inlet pipe outer end 3 inner faces are taper shape (being conical joint);

Described sacculus 2 inflation back diameter of section 8-12mm, the sacculus two ends are respectively apart from tubulature port 2mm;

Described drain short-range missile pipe range 44mm, external diameter 4-6mm, the long 300mm of drain long duct, external diameter 4-6mm;

1/3 of described air inlet pipe 6 cross sections overall diameter≤drain long duct cross section interior diameter;

Described sacculus, air inlet pipe are the oval body that medical macromolecular materials or polymer composite are made, and medical macromolecular materials are the polymer composite that one or more compositions of polrvinyl chloride, natural rubber, polyethylene, polyamide, polypropylene, polystyrene, silicone rubber constitutes.

By above-mentioned situation as can be seen, this utility model is a kind of T type two-chamber balloon expandable drainage tube for biliary postoperative biliary drainage and bile duct anastomotic stoma gradual expansion, sacculus communicates with the external world through opening at the rear portion of drain long duct by the air inlet pipe in the drain long duct tube wall.Sacculus and air injection pipe passage are medical macromolecular materials, and perhaps polymer composite makes sacculus can bear inflation venting more than 500 times repeatedly.The air inlet pipe of described connection air bag is positioned at the long duct tube wall, separates with conduit and independent opening at the long duct end.

The sacculus of this utility model tubulature outer wrapping, even when sacculus is full of the back high-pressure gas injection, it is constant that sacculus volume and external diameter still can keep, and can infinitely not enlarge.When behind bile duct injury, carrying out the prosthesis of bile duct end to-end anastomosis, this utility model is inserted in the bile duct, be convenient to postoperative biliary drainage and bile duct anastomotic stoma gradual expansion.At peritoneoscope or open in the abdomen cholecystectomy or postoperative when finding bile duct injury, if being suitable for the first phase sidewall, repairs or end to-end anastomosis the bile duct broken ends of fractured bone of damage, can when identical, insert sizeable T type two-chamber balloon expandable drainage tube in anastomotic stoma, carry out according to the conventional method of placing T type biliary stent of BDE operation, two galianconism are put into far-end and near-end bile duct respectively, make sacculus partly stride across the gallbladder intestinal anastomotic stoma, the long-armed bile duct wall of passing is drawn and is fixed in skin through stomach wall, and the foley's tube rear aperture connects drainage bag.

Postoperative balloon expandable method: if no postoperative wound infection, cholangitis or other severe complications, patient's postoperative began gradual dilating sacculus on the 7th day, the air injection pipe joint connects three-way valve, slowly inject air with the 20mL ordinary syringe, stop gas injection and close three-way valve when patient feels slight distending pain, maximum pressure is no more than air bag and bears pressure.Airbag aeration keeps gas to be emitted behind the 2h, causes the mucosa necrosis in order to avoid oppress tube wall for a long time.Daytime every day, the gas injection expansion was 3 times, can according to circumstances air bag be kept the inflated condition time to prolong a little gradually, and at emptying at night air bag, in order to biliary drainage.Continue 3-6 month interruption expanded balloon, during 1 ultrasound diagnosis in every month, observe the position of sacculus in bile duct and have or not breakage.3-6 can confirm under the unobstructed situation of bile duct at x-ray imaging after the month, the air bag and extract drainage tube of finding time.

This utility model has following advantage:

1. this utility model can be used in the biliary duct injury one-stage operation, avoids the treatment of Medicinal Biliary Tract Injury second phase to wait as long for the misery of operation.

2. this utility model supports on the effect basis of bile duct and bile drainage at traditional T pipe, increased the function of gradual expansion bile duct anastomotic stoma, when in expanded balloon, injecting liquid or gas, air bag expansion can be at the gallbladder intestinal anastomotic stoma and is provided diameter 8-10mm to support and dilating effect on every side, and its dilating effect is gradual and can regulates, both can expand the serious consequence that bile duct prevention of postoperative bile duct anastomotic stricture at a specified future date brings, and can avoid the excessive ischemia of bile duct wall to cause the tube wall necrosis by loosen air bag in good time again.Therefore this utility model is controlled to the dilating effect of biliary anastomosis mouth.

3. sacculus of the present utility model and air injection pipe material are polymer composite, and tolerance is inflation repeatedly, and fixed in shape behind the airbag aeration, does not increase the air bag diameter with pressure, avoids overdistension bile duct anastomotic stoma.

4. this utility model long duct distal opening is the general female cone joint of medical apparatus and instruments with the air injection pipe opening that is connected air bag, is convenient to connect medical apparatus and instruments such as drainage bag, syringe, compression pump.

5. this utility model is simple in structure, easily with the low cost manufacturing, and easy for operation.

Claims (3)

1. a biliary tract is expanded T type two-chamber drainage tube, comprise drain tubulature and drain long duct, it is characterized in that, drain tubulature (4) middle part vertically links to each other with drain long duct (1) one end, constitute the T type flow guiding structure of tube chamber (8) intercommunication, it is circular that inner chamber is arranged on the drain long duct inwall, and the tangent air inlet pipe that is connected as a single entity of inner chamber and drain long duct inwall (6), drain long duct other end lateral wall is stretched out in the air inlet pipe outer end, air inlet pipe (6) the inner is connected with the sacculus (2) that sealing is contained in drain tubulature (4) outside, drain long duct and air inlet pipe constitute double cavity structure, drain tubulature and sacculus are concentric Long Circle, drain tubulature (4) two ends and sacculus (2) sealing inner face connecting place are equipped with locating and displaying sign (5) at the drain tubulature, the outer end of drain long duct (7) and air inlet pipe outer end (3) inner face are taper shape, 1/3 of air inlet pipe (6) cross section overall diameter≤drain long duct cross section interior diameter.

2. biliary tract expansion T type two-chamber drainage tube according to claim 1 is characterized in that, described sacculus (2) inflation back diameter of section 8-12mm, and the sacculus two ends are respectively apart from tubulature port 2mm.

3. biliary tract expansion T type two-chamber drainage tube according to claim 1 is characterized in that described drain short-range missile pipe range 44mm, external diameter 4-6mm, the long 300mm of drain long duct, external diameter 4-6mm.

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