CN217138940U

CN217138940U - Pancreas pipe supports drainage device in operation

Info

Publication number: CN217138940U
Application number: CN202221048732.4U
Authority: CN
Inventors: 闫涛; 陈忠民; 雷磊; 侯颖; 杨硕; 朱磊; 刘傲飞; 张挺; 袁静; 叶雄伟
Original assignee: Rocket Force Characteristic Medical Center of PLA
Current assignee: Rocket Force Characteristic Medical Center of PLA
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-09
Anticipated expiration: 2032-05-05

Abstract

The utility model discloses a pancreas catheter supports drainage device in operation belongs to medical instrument technical field. The device includes inner tube and outer tube, and the design of the one end of inner tube has the head end and the portion of expanding that links to each other with the head end. The head end of the inner pipe is conical, the pipe wall connected with the inner pipe is uniformly thickened to form an inner pipe expansion part, and a side hole is formed between the head end of the inner pipe and the inner pipe expansion part; the pipe wall of the outer sleeve is provided with an anti-drop sheet and a side hole, and the tail end of the outer sleeve is provided with a stopper; the inner diameter of the outer sleeve tail end stopper is smaller than the outer diameter of the expanded part of the inner pipe; the inner diameter of the outer sleeve is larger than the outer diameter of the inner pipe; the outer sleeve is sleeved outside the inner pipe and can move towards the head end and the tail end of the inner pipe. The device design science, compact structure, convenient operation is applicable to open or peritoneoscope, the supplementary operation of carrying out pancreas intestines internal (external) drainage down of robot, can guarantee that postoperative pancreatic juice drainage is unobstructed, prevents that the pipe from accidentally deviating from, reduces the emergence of the various serious complications that pancreas jejunum anastomotic stoma fistula caused.

Description

Pancreas pipe supports drainage device in operation

Technical Field

The utility model discloses a pancreas pipe supports drainage device in operation, specific saying is a pancreas pipe supports drainage device suitable for in the pancreas operation, can make the unobstructed drainage of pancreas liquid to jejunum in or external, reduces the emergence of pancreas fistula and relevant complication, belongs to medical instrument technical field.

Background

The pancreas operation difficulty is big, the excision scope is wide, the operation time is long, the postoperative complication is many, and the perioperative period fatality rate is high. In complex pancreatic surgery, such as pancreaticotomy (pancreatectomy) combined with duodenectomy, a pancreaticojejunostomy is often performed. The pancreas jejunum anastomosis method which is commonly used clinically is pancreas tube-jejunum full-layer anastomosis, namely, a small opening is cut on the jejunum wall of a preset anastomosis part by an electric knife, a pancreas tube catheter enters the section end of the jejunum through the small opening, the pancreas tube catheter is kept in the jejunum or penetrates out of the intestinal cavity at a position which is about 3.0cm away from the section end, and the tip of the pancreas tube catheter is inserted into a main pancreas tube by about 5.0-10.0 cm. As shown in fig. 1.

For many years, surgeons mostly use white silica gel ureters to make pancreatic ducts for supporting pancreatic ducts and draining pancreatic juice in pancreatic surgery. The self-made pancreatic duct is not tightly attached to the main pancreatic duct and is easy to separate, and the risk of the pancreatic-jejunal anastomotic fistula is increased. At present, there is no evidence that different anastomotic approaches have significant advantages in reducing the incidence of pancreatic fistulae. Although a plurality of related patents are authorized, the device has the defects of unreasonable structure, inconvenient operation, low practicability and the like. Therefore, the novel pancreas ductus supporting and drainage device which is different from the existing pancreas ductus structure and function has important practical value and application prospect.

Disclosure of Invention

A penman designs a novel pancreas catheter supporting and drainage device through theoretical research and practical exploration. Compare in current pancreatic duct pipe, this device removes can effectively support the pancreas pipe, prevents its stenosis, be obstructed, still can fully drain pancreatic juice, prevents to support the drainage tube and accidentally deviate from, effectively prevents pancreas jejunum anastomotic stoma fistula, has compensatied the not enough of current pancreatic duct pipe.

The utility model provides an among the operation pancreas pipe supports drainage device can effectively support the pancreas pipe, unobstructed pancreas liquid drainage, and the prevention supports the drainage tube and deviates from to reduce the incidence of the identical mouthful fistula of pancreas jejunum, be applicable to open and the pancreas operation under peritoneoscope, the robot assistance.

In order to achieve the purpose, the invention adopts the following technical scheme:

a pancreas catheter supports drainage device in operation, it includes inner tube and outer tube two parts, inner tube and outer tube are the design of the cover income formula. A head end and an expansion part connected with the head end are designed at one end of the inner pipe, the head end of the inner pipe is conical, the pipe wall connected with the head end of the inner pipe is uniformly thickened to form the expansion part, and a side hole is designed between the head end of the inner pipe and the expansion part of the inner pipe; the pipe wall of the outer sleeve is provided with an anti-falling sheet and a side hole, the tail end of the outer sleeve is provided with a stopper, and the inner diameter of the stopper at the tail end of the outer sleeve is smaller than the outer diameter of the expansion part of the inner pipe; the inner diameter of the outer sleeve is larger than the outer diameter of the inner pipe, and the outer sleeve is sleeved outside the inner pipe and can move towards the head end and the tail end of the inner pipe.

The inner tube is made of transparent medical soft silica gel, the length is 25.0-30.0 cm, and the wall thickness is 0.8-1.2 mm; the head end of the inner pipe is conical, the rear part of the inner pipe is provided with an expansion part, and the pipe wall is designed to be uniformly expanded; and 1-2 side holes are formed in the pipe wall between the head end of the inner pipe and the expanded part of the inner pipe.

The outer sleeve is made of medical polyethylene, the length of the outer sleeve is 10.0-15.0cm, and the wall thickness of the outer sleeve is 0.5-1.0 mm; 4-6 side holes are formed in the tube wall of the outer sleeve; the outer sleeve lateral wall anticreep piece sets up on the lateral wall, and quantity is 2 ~ 3, can prevent that pancreas pipe from supporting drainage device and deviating from main pancreas pipe.

The cross sections of the inner pipe expansion part and the outer sleeve tail end limiter are both circular, and the pipe diameters are matched with each other.

The inner diameter of the outer sleeve is 0.5-0.8mm larger than the outer diameter of the inner pipe. The outer diameter of the outer sleeve may be selected from a variety of diameters, such as 1.5mm, 2.0mm, 2.5mm or 4.0mm, and the outer diameter of the inner tube may be less than the inner diameter of the outer sleeve, such as 1.0mm, 1.5mm, 2.0mm or 3.5 mm.

When the head end of the inner tube moves towards the tail end of the pancreas ductus supporting and drainage device, the tail end limiter of the outer sleeve can prevent the inner tube from being separated from the outer sleeve, and the sealing performance of the device is guaranteed.

This pancreas pipe supports drainage device in operation still is equipped with the guide wire of multiple specification, and the guide wire can insert in the inner tube, supports and guides the inner tube and inserts main pancreas pipe smoothly.

The utility model has the advantages that: scientific design, compact structure, convenient operation, smooth drainage and difficult separation. The device is suitable for the operation of internal (external) drainage of pancreas under the assistance of an open or laparoscope and a robot, can ensure that the drainage of pancreas liquid is smooth after operation, prevent the drainage catheter from being accidentally separated, reduce the incidence rate of severe complications such as abdominal hemorrhage, local and systemic severe infection and the like caused by pancreas-jejunum anastomotic fistula, improve the success rate of operations, and promote the recovery of patients.

Drawings

FIG. 1 is a schematic view of the use of a pancreatic duct support drainage device in a pancreatic surgery;

FIG. 2 is a schematic diagram of the structure of the present invention before use;

fig. 3 is a schematic diagram of the structure after use of the present invention.

Description of the main reference numerals:

1-inner tube; 2-inner tube head end; 3-a large part; 4-inner tube side hole; 5-outer sleeve; 6-anti-falling sheet; 7-outer sleeve side hole; 8-a stopper.

Detailed Description

As shown in fig. 2-3, the pancreas ductal supporting drainage device in operation of the utility model comprises an inner tube 1 and an outer sleeve 5. The inner tube 1 and the outer sleeve 5 are designed in a sleeved mode, and the outer sleeve 5 can move towards the head end 2 and the tail end of the inner tube. The inner tube 1 is made of transparent medical soft silica gel, the length is 25.0-30.0 cm, the wall thickness is 1.0mm, the head end 2 of the inner tube is conical, the tube wall behind the head end is uniformly thickened to form an inner tube expansion part 3, and 1-2 inner tube side holes 4 are formed in the tube wall between the head end 2 of the inner tube and the inner tube expansion part 3. The outer sleeve 2 is made of medical polyethylene, is 10.0-15.0cm long, 0.5-1.0mm in wall thickness, has an inner diameter larger than the outer diameter of the inner tube 1, is provided with 4-6 outer sleeve side holes 7 on the tube wall, and is provided with 2-3 anti-dropping sheets 6 on the side wall, so that the pancreatic duct supporting and drainage device can be prevented from dropping out of the main pancreatic duct easily; the tail end of the outer sleeve 5 is provided with a stopper 8, and the inner diameter of the stopper 8 is smaller than the outer diameter of the expanded part 3 of the inner pipe 1. The cross sections of the expansion part 3 of the inner tube 1 and the tail end limiter 8 of the outer sleeve 5 are both circular, and the tube diameters of the two are mutually matched. When the head end 2 of the inner tube 1 moves towards the tail end of the pancreas ductus supporting and drainage device, the tail end limiter 8 of the outer sleeve 5 can prevent the inner tube 1 from being separated from the outer sleeve 5, and the sealing performance of the device is guaranteed.

The pancreas catheter supporting drainage device has a plurality of specifications to select: the outer diameter of the outer sleeve 5 is 1.5mm, 2.0mm, 2.5mm and 4.0mm, and the outer diameter of the inner pipe 1 is slightly smaller than the inner diameter of the outer sleeve and is 1.0mm, 1.5mm, 2.0mm and 3.5 mm; pancreas pipe supports drainage device and is equipped with the guide wire of multiple specification, can pass in and out the inner tube that corresponds smoothly, and the guide inner tube inserts main pancreas pipe smoothly. The operator can select the pancreas duct supporting drainage device with proper model according to the actual condition in the operation.

As shown in fig. 1, 2 and 3, when performing pancreatic duct-jejunum anastomosis, the operator firstly cuts off the pancreas, the broken end of the free pancreas is about 1.0cm, electric coagulation can thoroughly stop bleeding, after finding the main pancreatic duct, the diameter of the main pancreatic duct is measured, and a pancreatic duct support drainage device with a proper type (the outer diameter of the outer casing tube is slightly larger than the diameter of the main pancreatic duct) is selected. An operator firstly inserts the inner tube 1 into the tail end of the main pancreatic duct (if the insertion is difficult, a matched guide wire can be inserted into the inner tube to increase the hardness of the inner tube), measures the length of the main pancreatic duct, and then gently pushes the outer sleeve 5 along the inner tube 1 to the far end direction of the main pancreatic duct (the head end and the anti-release sheet of the outer sleeve can be trimmed according to the length and the diameter of the main pancreatic duct), so that the outer sleeve side hole 7 and the outer sleeve side wall anti-release sheet 6 are completely arranged in the main pancreatic duct and are fully expanded, and the outer sleeve tail end limiter 8 is exposed out of the main pancreatic duct; the operator holds the tail end stopper 8 of the outer cannula 5 with the surgical forceps in one hand, and pulls out the inner tube 1 from the outer cannula 5 in the other hand until the expansion part 3 of the inner tube 1 is tightly attached to the tail end stopper 8 of the outer cannula 5 (as shown in fig. 1). Then, a small hole is cut at the position on the jejunum wall corresponding to the main pancreatic duct, the tail end of the inner tube 1 is inserted into the jejunum cavity (or is punctured through the distal intestinal wall of the broken end of the jejunum and led out), the main pancreatic duct and the rear wall of the jejunum are continuously sutured by 6-0Prolene lines, and then the main pancreatic duct and the front wall of the jejunum are sutured discontinuously, thus completing the pancreatic duct-jejunum anastomosis.

The utility model discloses pancreas catheter supports drainage device in operation, including inner tube 1 and outer tube 5. The material of the inner tube 1 is transparent soft medical silica gel, the head end 2 of the inner tube is conical, an expansion part 3 with a circular cross section is designed at the rear part, and 1-2 side holes are arranged between the head end 2 of the inner tube and the expansion part 3 of the inner tube, so that an operator can find and insert a main pancreatic duct and observe the pancreatic juice character; the outer sleeve 5 is made of medical polyethylene, the inner diameter of the outer sleeve is larger than the outer diameter of the inner tube 1, 2-3 anti-falling sheets 6 are designed on the side wall, 4-6 side holes 7 are formed in the tube wall, and the outer sleeve has the functions of supporting a pancreatic duct and fully draining pancreatic juice; the pipe diameters of the tail end limiter 8 of the outer sleeve 5 and the expansion part 3 of the inner pipe 1 are matched with each other, so that the inner pipe 1 and the outer sleeve 5 can be prevented from being separated accidentally, and the sealing performance of the device is ensured. This pancreas pipe supports drainage device in operation is applicable to open or peritoneoscope, the supplementary operation of carrying out pancreas intestines internal (external) drainage down of robot, can guarantee that postoperative pancreas fluid drainage is unobstructed, reduces serious complications such as abdominal cavity heavy bleeding and local, whole body serious infection that pancreas jejunum anastomoses oral fistula and causes.

Claims

1. The utility model provides a pancreas pipe supports drainage device in operation which characterized in that: comprises an inner tube and an outer sleeve; a head end and an expansion part connected with the head end are designed at one end of the inner pipe, the head end of the inner pipe is conical, the pipe wall connected with the head end of the inner pipe is uniformly thickened to form an expansion part, and a side hole is designed between the head end of the inner pipe and the expansion part of the inner pipe; the pipe wall of the outer sleeve is provided with an anti-drop sheet and a side hole, the tail end of the outer sleeve is provided with a stopper, and the inner diameter of the stopper at the tail end of the outer sleeve is smaller than the outer diameter of the expanded part of the inner pipe; the inner diameter of the outer sleeve is larger than the outer diameter of the inner pipe, and the outer sleeve is sleeved outside the inner pipe and can move towards the head end and the tail end of the inner pipe.

2. The intra-operative pancreatic ductal support drainage device of claim 1, wherein: the inner tube is made of transparent medical soft silica gel, the length is 25.0-30.0 cm, and the wall thickness is 0.8-1.2 mm.

3. The intra-operative pancreatic ductal support drainage device of claim 1, wherein: and 1-2 side holes are formed in the pipe wall between the head end of the inner pipe and the expanded part of the inner pipe.

4. The intra-operative pancreatic ductal support drainage device of claim 1, wherein: the outer sleeve is made of medical polyethylene, the length of the outer sleeve is 10.0-15.0cm, and the wall thickness of the outer sleeve is 0.5-1.0 mm.

5. The intra-operative pancreatic ductal support drainage device of claim 4, wherein: the pipe wall of the outer sleeve is provided with a plurality of side holes, and the number of the side holes in the pipe wall of the outer sleeve is 4-6.

6. The intra-operative pancreatic ductal support drainage device of claim 1, wherein: the lateral wall anticreep piece quantity of outer tube is 2 ~ 3.

7. The intra-operative pancreatic ductal support drainage device of claim 1, wherein: the cross sections of the expansion part of the inner pipe and the outer sleeve tail end stopper are both circular, and the pipe diameters of the expansion part of the inner pipe and the outer sleeve tail end stopper are matched with each other.

8. The intra-operative pancreatic ductal support drainage device of claim 1, wherein: the inner diameter of the outer sleeve is 0.5-0.8mm larger than the outer diameter of the inner pipe.

9. The intra-operative pancreatic ductal support drainage device of claim 8, wherein: the outer sleeve inner diameter is 1.5mm, 2.0mm, 2.5mm or 4.0mm, the inner tube external diameter be 1.0mm, 1.5mm, 2.0mm or 3.5 mm.

10. The intra-operative pancreatic ductal support drainage device of claim 1, wherein: this pancreas pipe supports drainage device in operation still is equipped with the guide wire of multiple specification, helps guiding the inner tube to insert main pancreas pipe smoothly.