CN112972784B - Pancreatoduodenectomy with total external drainage of pancreatic juice and pancreatic juice drainage and reinfusion device - Google Patents

Abstract

The invention relates to the field of medical materials, in particular to a pancreatic juice complete external drainage pancreatectomy and pancreatic juice drainage feedback device, which comprises a first drainage tube, wherein one end of the first drainage tube is connected with a threaded head, the other end of the first drainage tube is connected with a second drainage tube through a flow control mechanism, the second drainage tube is connected to the inner side of a drainage bag, the lower end of the drainage bag is communicated with a third drainage tube, one end of the third drainage tube is connected with a delivery tube through a three-way tube, the three-way tube comprises a tube body and an injection mechanism communicated with the outer surface of the tube body, and an on-off valve mechanism is embedded in the outer surface of the three-way tube close to two ends.

Description

Pancreatoduodenectomy with total external drainage of pancreatic juice and pancreatic juice drainage and reinfusion device

technical field

The invention relates to the field of medical materials, in particular to pancreatoduodenectomy with complete external drainage of pancreatic juice and a device for drainage and reinfusion of pancreatic juice.

Background technique

Pancreatic head carcinoma is a common malignant tumor of the digestive tract, and pancreaticoduodenectomy is a common treatment. However, pancreatic leakage and the resulting massive postoperative bleeding are the most serious complications of pancreaticoduodenectomy, making it its Achilles' heel. At present, the commonly used methods to reduce pancreatic leakage include improving the technique of pancreaticojejunostomy and improving the way of pancreaticojejunostomy. The core is "blocking", that is, blocking pancreatic juice in the digestive tract. However, pancreatic juice is a strong digestive juice. Once activated, the pancreatic juice will corrode even the eye of the suture needle, so it is difficult to block it. Based on this, the operation method of pancreaticoduodenectomy was improved, and the pancreatic juice was completely drained out skillfully, so as to avoid the activation of pancreatic juice and prevent postoperative pancreatic leakage. The drainage and reinfusion device not only solves the problem of pancreatic duct placement during operation, but also solves the problem of reinfusion of pancreatic juice after operation.

Contents of the invention

The object of the present invention is to solve the shortcoming existing in the background technology, and propose the total external drainage of pancreatic juice pancreatoduodenectomy and the device for drainage and reinfusion of pancreatic juice.

In order to achieve the above object, the technical solution adopted in the present invention is: pancreaticoduodenectomy with complete external drainage of pancreatic juice and pancreatic juice drainage and reinfusion device, including a first drainage tube, one end of the first drainage tube is connected with a threaded head, The other end of the first drainage tube is connected to the second drainage tube through a flow control mechanism, the second drainage tube is connected to the inner side of the drainage bag, and the lower end of the drainage bag is connected with a third drainage tube, and the third drainage tube is connected to the inner side of the drainage bag. One end of the pipe is connected with a delivery pipe through a three-way pipe. The three-way pipe includes a pipe body and an injection mechanism connected to the outer surface of the pipe. The outer surface of the three-way pipe is embedded with an on-off valve mechanism near both ends.

Preferably, the outer surface of the thread head is provided with helical threads, and the outer surface of the thread head is provided with several extraction holes, and the extraction holes are arranged equidistantly from top to bottom.

Preferably, the outer surface of the first drainage tube is covered with a fixing plate, and a triangular hole and two round holes are opened through the outer surface of the fixing plate, and the first drainage tube passes through the inner side of the triangular hole.

Preferably, the flow control mechanism includes fixed sleeves respectively fixed on one end of the first drainage tube and the second drainage tube, and the ends of the upper and lower two fixed sleeves close to each other are rotatably installed with a rotating cylinder. Two symmetrical upper fan plates are fixedly connected to the inner wall near the lower end, the ends of the two upper fan plates are fixedly connected through the upper connection part, and two symmetrical lower fan plates are fixedly connected to the inner wall of the lower fixed sleeve near the upper end. The ends of the two lower fan plates are fixedly connected through the lower connection part, the lower end surface of the upper connection part extends vertically from the limit shaft, and the limit shaft moves through the upper end surface of the lower connection part.

Preferably, one end of the two fixed sleeves located on the inner side is bent outward to extend a bent edge, and the bent edge is movably embedded in the inner wall of the rotating cylinder, and several annular arrays are extended from the outer surface of the rotating cylinder Arranged anti-slip pattern.

Preferably, the on-off valve mechanism includes a sleeve fixedly embedded in the outer surface of the tube, and a rotating column rotatably installed inside the sleeve, and a flow hole is opened through the inner side of the rotating column.

Preferably, a widening head extends from the upper and lower ends of the rotating column, a sealing ring is provided between the widening head and the port of the sleeve, and a rotating petal extends from the upper end surface of the widening head located above.

Preferably, the injection mechanism includes a syringe, and the delivery tube is connected to a nasogastric tube or a jejunal nutrition tube.

Also provided are pancreaticoduodenectomy with complete external drainage of pancreatic juice and a method for using the pancreatic juice drainage and reinfusion device. Using the above-mentioned device, the threaded head and the end of the first drainage tube are inserted into the abdominal wall together, and the threaded head passes through the side of the jejunum Then it is inserted into the pancreas to drain the pancreatic juice.

Compared with the prior art, the present invention has the following beneficial effects:

Complete external drainage of pancreatic juice is the core of modified pancreaticoduodenectomy, but the thickness of the pancreatic duct is different for each patient. The insertion depth can be flexibly adjusted to match the pancreas of different thicknesses of patients. Through the provided delivery tube, the extracted and collected pancreatic juice is returned to the end of the nasogastric tube or jejunal nutrition tube, and then returned to the digestive tract to promote digestion.

Description of drawings

Fig. 1 is a structural schematic diagram of pancreatoduodenectomy with complete external drainage of pancreatic juice and a device for drainage and reinfusion of pancreatic juice according to the present invention;

Fig. 2 is a schematic diagram of the screw head structure of the pancreas-duodenectomy with complete external drainage of pancreatic juice and the device for drainage and reinfusion of pancreatic juice according to the present invention;

3 is a schematic diagram of the structure of the three-way tube of the pancreas-duodenectomy with complete external drainage of pancreatic juice and the device for drainage and reinfusion of pancreatic juice according to the present invention;

4 is a cross-sectional view of the on-off valve mechanism of the complete external drainage of pancreatic juice and the on-off valve mechanism of the pancreatic juice drainage and reinfusion device according to the present invention;

Fig. 5 is a cross-sectional view of the flow control mechanism of the pancreaticoduodenectomy with complete external drainage of pancreatic juice and the drainage and reinfusion device of pancreatic juice according to the present invention;

Fig. 6 is an enlarged view of part A in Fig. 5 of the pancreatoduodenectomy with complete external drainage of pancreatic juice and the device for drainage and reinfusion of pancreatic juice according to the present invention;

Fig. 7 is a diagram of the use state of the complete external drainage of pancreatic juice pancreatoduodenectomy and the drainage and reinfusion device of pancreatic juice according to the present invention.

In the figure: 1. threaded head; 2. spiral pattern; 3. extraction hole; 4. first drainage tube; 5. fixed plate; 6. second drainage tube; 7. drainage bag; 8. third drainage tube; 9 , injection mechanism; 10, tee pipe; 11, sending pipe; 12, pipe body; 13, sleeve; 14, rotating column; 15, sealing ring; 16, widening head; 17, rotating flap; 18, flow hole ;19, fixed sleeve; 20, rotating cylinder; 21, anti-skid pattern; 22, upper fan plate; 23, upper connection part; 24, lower fan plate; 25, lower connection part; 26, limit shaft; 27, bending side; 28, pancreas; 29, jejunum; 30, abdominal wall.

Detailed ways

The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

The pancreatoduodenectomy with complete external drainage of pancreatic juice and the drainage and reinfusion device for pancreatic juice as shown in Figures 1-7 include a first drainage tube 4, one end of the first drainage tube 4 is connected with a threaded head 1, and the first drainage The other end of the tube 4 is connected to the second drainage tube 6 through the flow control mechanism, the second drainage tube 6 is connected to the inner side of the drainage bag 7, the lower end of the drainage bag 7 is connected with the third drainage tube 8, and one end of the third drainage tube 8 passes through The three-way pipe 10 is connected with a sending pipe 11. The three-way pipe 10 includes a pipe body 12 and an injection mechanism 9 connected to the outer surface of the pipe body 12. The outer surface of the three-way pipe 10 is embedded with an on-off valve mechanism near both ends.

The outer surface of the thread head 1 is provided with a helical pattern 2, and the outer surface of the thread head 1 is provided with several extraction holes 3. The extraction holes 3 are arranged equidistantly from top to bottom, so as to ensure that the pancreas 28 can be inserted into the pancreas 28 at different depths for drainage. Liquid, can be adapted to the pancreas 28 of different thickness to be inserted, for the thinner pancreas 28, insert near the upper end and get final product.

The outer surface of the first drainage tube 4 is covered with a fixed plate 5, and the outer surface of the fixed plate 5 is provided with a triangular hole and two circular holes. The first drainage tube 4 passes through the inner side of the triangular hole, and the first drainage tube 4 The surface and the edge of the triangular hole are in a state of being slightly squeezed, which plays a position-limiting role, and the round hole can be driven into bolts to be fixed on the medical frame, so as to promote the stability of the first drainage tube 4 .

The flow control mechanism includes a fixed sleeve 19 fixedly sleeved on one end of the first drainage tube 4 and the second drainage tube 6 respectively, and a rotating cylinder 20 is installed at the ends of the upper and lower fixed sleeves 19 close to each other. The inner wall of the rotating cylinder 20 Two symmetrical upper fan plates 22 are fixedly connected near the lower end, and the ends of the two upper fan plates 22 are fixedly connected through the upper connecting portion 23, and the inner wall of the fixed sleeve 19 below is fixedly connected with two symmetrical lower fan plates near the upper end. Fan plate 24, the ends of the two lower fan plates 24 are fixedly connected through the lower connection part 25, the lower end surface of the upper connection part 23 extends vertically out of the limit shaft 26, and the upper fan plate 22 is stable when the limit shaft 26 is lifted and rotated. degree, and the limit shaft 26 moves through the upper end surface of the lower connection part 25, by rotating the rotating cylinder 20, the upper fan plate 22 is rotated, and the upper fan plate 22 is dislocated relative to the lower fan plate 24, so that the inside of the fixed sleeve 19 can be changed. pancreatic juice flow rate.

One end of the two fixed sleeves 19 located on the inner side is bent outward to extend out a bent edge 27, and the bent edge 27 is movably embedded on the inner wall of the rotating cylinder 20 to ensure that the rotating cylinder 20 can rotate without breaking away from the fixing sleeve 19, and the rotating cylinder A plurality of anti-slip lines 21 arranged in a circular array extend from the outer surface of the rotatable drum 20 , so as to facilitate the user to rotate the rotary drum 20 .

The on-off valve mechanism includes a sleeve 13 fixedly embedded in the outer surface of the pipe body 12, and a rotating column 14 rotatably mounted on the inner side of the sleeve 13. The inner side of the rotating column 14 is provided with a flow hole 18, and the upper and lower ends of the rotating column 14 extend out of the Wide head 16, a sealing ring 15 is arranged between the widened head 16 and the port of the sleeve 13, and the upper end surface of the widened head 16 above extends out a rotating petal 17, and the rotating column 14 is rotated by rotating the rotating petal 17, so that When the flow holes 18 are directed toward both sides, pancreatic juice can pass through.

The injection mechanism 9 includes a syringe, and the delivery tube 11 is connected to a nasogastric tube or a jejunum nutrition tube. The injection mechanism 9 plays the role of temporarily storing the suctioned pancreatic juice.

Pancreatoduodenectomy with complete external drainage of pancreatic juice and the method of using the pancreatic juice drainage and reinfusion device, using the above-mentioned device, insert the threaded head 1 and the end of the first drainage tube 4 into the abdominal wall 30, and the threaded head 1 passes through the jejunum 29 One side is inserted into the pancreas 28 to lead out the pancreatic juice, and enters the drainage bag 7 through the first drainage tube 4, and the rotating column 14 connected to the third drainage tube 8 can be unscrewed, so that the pancreatic juice can be sucked to the injection site. In the mechanism 9, close the rotating column 14 afterwards, unscrew the rotating column 14 connected to the port of the delivery tube 11, push the injection mechanism 9 to push the pancreatic juice out of the delivery tube 11, and send it into the nasogastric tube or jejunal nutrition tube. Pancreatic juice was infused again.

Complete external drainage of pancreatic juice is the core of modified pancreaticoduodenectomy, but each patient’s pancreas 28 is different in thickness. , the depth of insertion can be flexibly adjusted to match the pancreas 28 of different thicknesses of the patient; through the provided delivery tube 11, the extracted and collected pancreatic juice is returned to the end of the nasogastric tube or jejunal nutrition tube, and returned to the digestive tract to promote digestion.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description are only the principles of the present invention. Variations and improvements, which fall within the scope of the claimed invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. Complete external drainage of pancreatic juice for pancreaticoduodenectomy and pancreatic juice drainage and reinfusion device, comprising a first drainage tube (4), characterized in that: one end of the first drainage tube (4) is connected with a threaded head (1 ), the other end of the first drainage tube (4) is connected to the second drainage tube (6) through a flow control mechanism, and the second drainage tube (6) is connected to the inside of the drainage bag (7), and the drainage bag The lower end of (7) is communicated with the 3rd drainage pipe (8), and one end of described 3rd drainage pipe (8) is connected with delivery pipe (11) by tee pipe (10), and described tee pipe (10) comprises The pipe body (12) is connected to the injection mechanism (9) on the outer surface of the pipe body (12), and the outer surface of the three-way pipe (10) is embedded with an on-off valve mechanism near both ends; The outer surface of the thread head (1) is provided with helical threads (2), and the outer surface of the thread head (1) is provided with several extraction holes (3), and the extraction holes (3) are from top to bottom Arranged equidistantly, the thread head (1) is set to be tapered; The on-off valve mechanism includes a sleeve (13) fixedly embedded in the outer surface of the pipe body (12), a rotating column (14) rotatably installed inside the sleeve (13), and the inner side of the rotating column (14) runs through There are flow holes (18); The upper and lower ends of the rotating column (14) extend a widening head (16), and a sealing ring (15) is arranged between the port of the widening head (16) and the sleeve (13). The upper end surface of the widening head (16) extends a rotating lobe (17); The injection mechanism (9) includes a syringe, and the delivery tube (11) is connected with a nasogastric tube or a jejunal feeding tube; After unscrewing the rotating column (14) connected to the third drainage tube (8), the pancreatic juice can be sucked into the injection mechanism (9), then close the rotating column (14), unscrew connecting the delivery tube ( 11) The rotating column (14) at the port pushes the injection mechanism (9) to push out the pancreatic juice from the delivery tube (11). 2. The pancreatoduodenectomy with complete external drainage of pancreatic juice and the device for drainage and reinfusion of pancreatic juice according to claim 1, characterized in that: the outer surface of the first drainage tube (4) is covered with a fixing plate (5 ), the outer surface of the fixing plate (5) is provided with a triangular hole and two round holes, and the first drainage tube (4) passes through the inner side of the triangular hole. 3. The pancreatoduodenectomy with complete external drainage of pancreatic juice and the device for drainage and reinfusion of pancreatic juice according to claim 1, characterized in that: the flow control mechanism includes fixed sleeves on the first drainage tube (4) and the second drainage tube (4) respectively. The two drainage tubes (6) are close to the fixed sleeve (19) at one end, and the upper and lower two fixed sleeves (19) are close to each other. A rotating cylinder (20) is installed on the end of the rotation, and the inner wall of the rotating cylinder (20) is close to the lower end. There are two symmetrical upper fan plates (22) fixedly connected, the ends of the two upper fan plates (22) are fixedly connected through the upper connection part (23), and the inner wall of the lower fixed sleeve (19) is fixed near the upper end. Two symmetrical lower fan boards (24) are connected, the ends of the two lower fan boards (24) are fixedly connected through the lower connecting part (25), and the lower end surface of the upper connecting part (23) extends vertically The limiting shaft (26), and the limiting shaft (26) moves through the upper end surface of the lower connecting part (25). 4. The pancreatoduodenectomy with complete external drainage of pancreatic juice and the device for pancreatic juice drainage and reinfusion according to claim 3, characterized in that: the inner ends of the two fixing sleeves (19) are bent and extended outwards Bending edge (27), said bending edge (27) is movably embedded on the inner wall of rotating cylinder (20), and the outer surface of said rotating cylinder (20) extends several anti-slip lines (21 ).

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