CN201336101Y

CN201336101Y - Mechanical duodenum device

Info

Publication number: CN201336101Y
Application number: CNU2008201805084U
Authority: CN
Inventors: 梁永昌; 罗伯特·E·威尔逊
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-02
Filing date: 2008-12-02
Publication date: 2009-10-28
Anticipated expiration: 2018-12-02

Abstract

The utility model discloses a mechanical duodenum device. The device comprises a duodenum model segment, a foldable supporting seat, a gallbladder-and-pancreas tube model and a duodenal papilla model, wherein the duodenum model segment is fixedly connected on the right side of the supporting seat, the bottom part of the duodenum model segment takes the shape of a tube, and the upper end thereof is a connector connected with a simulated stomach tube; the left side and the right side of the supporting seat are respectively provided with through holes; when the supporting seat is folded, the through holes at the two sides are communicated, and the through holes at the right side are communicated with the duodenum model segment; the gallbladder-and-pancreas tube model takes the shape of a tube, is fixedly connected on the left side of the supporting seat and is communicated with the through holes at the left side; and the duodenal papilla model is movably arranged between the through holes at the two sides. The device has simple structure and convenient installation; in addition, a replaceable artificial papilla is used for carrying out ERCP operation, therefore, the trainee can know the whole clinical course well.

Description

Machinery duodenum device

Technical field

The utility model relates to a kind of mechanical duodenum device.

Background technology

ERCP (ERCP) is effective treatment means of pancreas and biliary system pathology, and diagnosis and therapeutic ERCP have produced significant impact to courage pancreas disease patient's processing.As everyone knows, higher operation failure rate is lacked experience relevant with complication rate with the endoscopic technician.The study of ERCP is many by carrying out under man-to-man the supervising and guiding in to patient's actual clinical operation.According to the data of having delivered, for obtaining operative skill and adaptability to changes, U.S. digestion introscope association (ASGE) has recommended the minimum ERCP that should finish to train routine number.By complete training process, make the trainee obtain enough confidence and adaptability to changes, adaptability to changes is at because the change different with book knowledge of patient individual difference's cause.For obtaining basic operation skill (be defined as the ERCP success ratio and be higher than 80%) and adaptability to changes, the student estimates to finish 180～200 ERCP clinical manipulations, yet many training courses can not provide enough patients to improve the technical ability of student ERCP.Report recently shows that the resident of division of gastroenterology who has graduated on average only finish 100 examples (scope 40～180) ERCP, and most of doctors has wherein planned to carry out the ERCP clinical position in the process of undergoing training.In other place, be example with China, because a large amount of student undergoes training in wait, the time limit of training only is 4～6 months by doing and illustrating.

Though the application of therapeutic ERCP has promoted courage pancreas treatment of diseases, security remains most important to patient.As everyone knows, the scope doctor who lacks experience can cause higher mortality and the generation of postoperative complications (comprising pancreatitis, hemorrhage, infection and rare perforation even death), particularly in the stage of begining to learn.The doctor who lacks experience because and be unfamiliar with whole ERCP accessories, and use accessory that can not be skilled, this may be the reason that causes operation failure and postoperative complications.The practical operation of simulator (at the early stage of study or before patient is carried out practical operation) provides the chance of grasping ERCP basic operation technology to the trainee, they is understood how to use equipment and annex, avoid complication, the complete operation of safety.

What everybody paid close attention at present is to use alternative learning method rather than improves endoscopic technic by the use patient.Several simulators provide clinical ERCP exercise for the trainee of Gastroenterology dept., and simulator comprises pig stomach model, postanesthetic pig model, computer simulation device, mechanical ERCP simulator and the X-Vision ERCP simulator that live body separates.Though these methods all have its limitation separately, the simulator exercise still is applied to improving student ERCP technology.The defective of simulator training comprises: be not live body, can not simulate whole clinical course and involve great expense.In order the student to be cultivated the experience master-hand that can finish ERCP safely, must provide more exerciser meeting.

The utility model content

Technical problem to be solved in the utility model provides a kind of mechanical duodenum device, and this device uses interchangeable artificial nipple to finish the ERCP operation, makes the student can be familiar with whole clinical course.

For solving the problems of the technologies described above, technical scheme provided by the utility model is: a kind of mechanical duodenum device, and this device includes duodenum mold segment, folding supporting base, courage ductus pancreaticus model and duodenofiberscope model; Described duodenum mold segment is fixedly connected on the right side of supporting base, is the tubulose of base seal, and the upper end is the interface that is connected with the simulation stomach tube; Be respectively equipped with through hole on described supporting base left side and the right side, two side through hole are what be communicated with when supporting base is folding, and the through hole on the right side is communicated with the duodenum mold segment; Described courage ductus pancreaticus model is made as tubulose, is fixedly connected on the left side of supporting base, and is communicated with PATENT left side via; Described duodenofiberscope model is located between two side through hole versatilely.

The through hole of described supporting base both sides is circular.

The advantage that the utlity model has: using removable artificial nipple to replace animal tissue is that pig stomach or heart carry out nipple incision exercise.This dismountable nipple can be used for directly measuring cutting length and direction, is beneficial to objective evaluation and cuts performance.Can use different bile duct designs to adapt to different ERCP operations.The product simple installation uses real scope and accessory during exercise, carry out the mechanically actuated of ERCP.The nipple that removable nipple can carry out repeatedly cuts exercise, only needs the very short set-up time to replace, and does not need Special Training, need not waste too many time and efforts.

Description of drawings:

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is that structure of the present utility model is disperseed synoptic diagram;

Fig. 2 is a structural representation of the present utility model.

Embodiment:

A kind of mechanical duodenum device as illustrated in fig. 1 and 2, this device includes duodenum mold segment 1, folding supporting base 2, bile duct model 3, ductus pancreaticus model 4 and duodenofiberscope model 5; Described duodenum mold segment 1 is the tubulose of base seal, is fixedly connected on the right side of supporting base 2 interface 21 that its upper end can be connected with the simulation stomach tube; Be respectively equipped with

manhole

23,24 on described supporting base 2 left sides and the right side, two side through hole are what be communicated with when supporting base 2 folds, and the through hole on the right side 24 is communicated with duodenum mold segment 1; Described bile duct model 3 and ductus pancreaticus model 4 are made as tubulose, are fixedly connected on the left side of supporting base 2, and are communicated with PATENT left side via 23; Described duodenofiberscope model 5 is located between two side through

hole

23,24 versatilely.

Duodenum mold segment 1 adopts rubber to make, and has changeability and elasticity, and it is inserted in hard plexiglas platform supports seat 2, and its last end interface 21 is connected with the simulation stomach tube, and endcapped becomes cecum and supporting base 2 to fix.From the downward 2.0 inches sidewall in duodenum mold segment 1 upper end the circular port 24 of 1.25 inches of diameters is arranged, protrude into enteric cavity to hold duodenofiberscope model 5.

It is more stable that plexiglas supporting base 2 in the machinery duodenum device can make soft duodenum mold segment 1 link to each other with the stomach oesophagus, and these supporting base 2 rotatable 30 degree are to simulate duodenal distortion (being similar to the duodenum distortion).The circular port 23 in plexiglas supporting base 2 left sides can hold bile duct 3 and ductus pancreaticus 4,0.5 inch of bile duct opening diameter, 0.25 inch of ductus pancreaticus opening diameter.This supporting base 2 can be opened as shown in Figure 2 by hinge 22 devices, conveniently takes off or install disposable duodenofiberscope model 5 rapidly, also is convenient to take out fast the support that is positioned over duodenofiberscope model 5 and bile duct 3 stenosis.

Disposable duodenofiberscope model 5 can rotate and change the position owing to be located at the middle place of 2 liang of side through hole of supporting base versatilely, simulates the real duodenofiberscope of distortion, and this design can be carried out selectivity courage pancreatic canula.Can indicate that best bile duct is axial in the flat part line of duodenofiberscope, instruct the student to practise duodenofiberscope and cut.

Development when the simulation x-ray fluoroscopy is used to practise ERCP in the courage ductus pancreaticus.See auto levelizer inside under direct-view, we block simulator with the curtain of plastics or canvas.In order to observe the situation in bile duct or the ductus pancreaticus, we are fixed in pinhole camera on the support bar, are placed in the curtain, and the image of camera is connected on the external monitor that is similar to x-ray fluoroscopy, are positioned over by the scope monitor.Camera is controlled by foot-switch, and bile duct or ductus pancreaticus are used to develop.The foot-operated improvement by controller forms, and this controller is connected video camera with timer, and timer is used for the statistical simulation x-ray fluoroscopy time.Camera with Varifocal zoom lens is used for emulation x-ray fluoroscopy device.

Open mechanical duodenum device, make removable duodenofiberscope model 5 be in appropriate location between its stilt, just as " sandwich ".The bile duct of different designs can be installed on mechanical duodenum and be used for different exercises, and in addition, rotatable duodenum device is used for simulating the anatomical variation of clinical duodenum of meeting and nipple to change the position of duodenum and nipple.

Claims

1, a kind of mechanical duodenum device, it is characterized in that: this device includes duodenum mold segment, folding supporting base, courage ductus pancreaticus model and duodenofiberscope model; Described duodenum mold segment is fixedly connected on the right side of supporting base, is the tubulose of base seal, and the upper end is the interface that is connected with the simulation stomach tube; Be respectively equipped with through hole on described supporting base left side and the right side, two side through hole are what be communicated with when supporting base is folding, and the through hole on the right side is communicated with the duodenum mold segment; Described courage ductus pancreaticus model is made as tubulose, is fixedly connected on the left side of supporting base, and is communicated with PATENT left side via; Described duodenofiberscope model is located between two side through hole versatilely.

2, mechanical duodenum device according to claim 1 is characterized in that: the through hole of described supporting base both sides is for circular.