CN111282130A - A fixable intra-pancreatic duct tube with holes - Google Patents

Abstract

The invention relates to a fixable intra-pancreatic duct built-in tube with holes, including a pancreatic duct built-in tube, the pancreatic duct built-in tube is made of translucent silica gel, the total length of the pancreatic duct built-in tube is 100-150 mm, and its diameter The setting is 1.8-2.2 mm, and drainage holes are uniformly arranged along the wall of the pancreatic duct built-in tube from left to right, and the pancreatic duct built-in tube is also provided with fixing ears. Its advantages are as follows: the present invention is simple in structure and convenient to use, and the setting of the drainage hole of the pancreatic duct built-in canal can increase the outflow of pancreatic juice to a greater extent and improve its outflow efficiency; and the fixed ear on the pancreatic duct built-in canal can better The tube wall is fixed to prevent the slippage of the built-in tube and achieve better drainage effect.

Description

A fixable intra-pancreatic duct tube with holes

technical field

The invention relates to the technical field of medical devices, in particular to a fixable in-built pancreatic duct tube with holes.

Background technique

In recent years, with the continuous improvement of medical level, pancreatic surgery has been greatly developed, and a large number of pancreatic operations have been carried out. The pancreas is a digestive organ with endocrine and endocrine functions. It is located at a key position in the digestive tract. Pancreatic surgery usually involves partial pancreas resection and digestive tract reconstruction. During the reconstruction process, the smoothness of the anastomosis between the pancreatic duct and the digestive tract is very important. It is the key to the success of pancreatic surgery.

At present, in clinical work, there is no pancreatic duct built-in tube specially designed for anastomosis of the pancreatic duct and the digestive tract. Most of them are replaced by silicone tubes used in other operations. However, the current tube diameter is single. It is easy to compress the pancreatic duct and lead to ischemia and necrosis. If the patient's pancreatic duct is thick, it is easy to slip off. In addition, the surface of the silicone tube currently used in the hospital is smooth and has no anti-prolapse function. Although it can be sutured during surgery. However, the incidence of pancreatic duct prolapse is still very high, which often leads to obstruction of pancreatic exocrine secretion, which in turn causes pancreatitis and insufficient or even loss of pancreatic exocrine function, which seriously affects the prognosis and quality of life of patients.

Although these existing silicone tubes have a certain drainage effect and can partially meet the needs of anastomosis between the pancreatic duct and the digestive tract, their use also has great limitations. The poor drainage effect may be the cause of postoperative pancreatic anastomotic edema, pancreatic leakage, and even infection and bleeding. Therefore, it is particularly important to design an intra-pancreatic duct for anastomosis of the pancreatic duct and the digestive tract.

Search Chinese patent application: CN204542475U discloses a detachment-proof pancreatic duct stent structure, which includes: a stent tube; Multiple rows of barbs are arranged on the outer wall of the stent tube and distributed along its circumference. The device mainly increases the adhesion between the stent tube and the pancreatic duct, making the two more firmly attached, preventing the stent tube from falling out of the pancreatic duct, thereby improving the success rate of the operation and facilitating the recovery of the patient. However, the device adds a multi-row barbed body design to the traditional smooth stent. Although the anti-slipping ability is significantly increased, the barb design may increase the risk of pancreatic duct damage, easily cause secondary injury to the patient, and is not conducive to The recovery of patients, so there is some resistance in promotion.

Retrieve Chinese patent application: CN203777107U discloses a support tube for pancreaticojejunostomy into the pancreatic duct, which includes a translucent silicone support tube with a certain hardness, and one end of the translucent silicone support tube is a conical ball for inserting into the pancreatic duct, On the translucent silicone support tube, a section of openings with side holes distributed on the walls of the tubes is formed, and the openings are close to the conical balls. The device mainly solves the problem of smooth drainage of pancreatic juice, thereby preventing the occurrence of pancreatic fistula during or after pancreatic tumor surgery. However, the device is not provided with a device structure that can be stably fixed, so it is not easy to fix during use, which will cause the built-in tube to slip out, thereby affecting its drainage effect.

Therefore, in summary, there is an urgent need to design a new fixable intra-pancreatic duct with holes, which is simple in structure, easy to operate, easy to fix, has smooth drainage, and is designed to be anastomosed with the pancreas-jejunum and pancreas-stomach. However, there is no report about this new type of fixable intra-pancreatic duct with holes.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a fixable intra-pancreatic duct tube with holes.

For realizing the above-mentioned purpose, the technical scheme that the present invention takes is:

A pancreatic duct built-in tube with holes that can be fixed, including the pancreatic duct built-in tube, the pancreatic duct built-in tube is made of translucent silica gel, the total length of the pancreatic duct built-in tube is 100-150mm, and the diameter is set to 1.8-2.2 mm mm, drainage holes are evenly arranged along the tube wall from left to right on the pancreatic duct built-in tube, and fixed ears are also arranged on the pancreatic duct built-in tube.

In the above-mentioned fixable perforated pancreatic duct built-in tube, as a preferred solution, the drainage holes are uniformly arranged in a ring around the pancreatic duct built-in tube, and the number of drainage holes on the ring is set to 6-8, The diameter of the drainage hole is 0.2-0.4 mm, and the distance between the drainage hole at the top and the drainage hole at the bottom is 0.8-1.2 mm.

In the above-mentioned fixable intra-pancreatic duct tube with holes, as a preferred solution, the interval between each two lateral drainage holes from left to right on the intra-pancreatic duct tube is set to 3-5 mm, and the distance between the two lateral drainage holes on the intra-pancreatic duct tube is set to 3-5 mm, The distance interval between the drainage hole at the orifice of the built-in tube and the mouth of the built-in pancreatic tube is set to be 0.4-0.6 mm.

In the above-mentioned fixable intra-pancreatic duct tube with holes, as a preferred solution, the fixing ear is arranged near the orifice of the intra-pancreatic duct tube, and the distance from the fixing ear to the orifice of the intra-pancreatic duct tube is 28-32 mm , the fixed ear is a cylindrical structure, its radius is set to 0.1-0.2mm, and the length and height are set to 1-2mm.

The advantages of the present invention are:

1. The present invention is simple in structure, ingenious in design, and convenient in manufacture, and the size of the device is designed to match the patient's pancreas-intestine and pancreas-stomach, and various specifications can be set as required to apply to pancreatic ducts of different thicknesses.

2. The setting of the fixed ear in the present invention can significantly increase the anti-slipping ability of the pancreatic duct built-in tube, achieve a better fixation effect, reduce the incidence of postoperative pancreaticoenteric anastomotic leakage, and improve the patient's surgical success rate and quality of life.

3. The setting of 4mm spacing between each two lateral drainage holes from left to right on the pancreatic duct built-in tube in the present invention enables the operator to clearly calculate the distance between each two drainage holes according to the size of the distance between the two drainage holes. It can greatly reduce the error and make the surgical operation more standardized, so that the operator can grasp the depth of the pancreatic duct, improve the accuracy of the operation, and reduce the operator's surgical burden.

Description of drawings

Figure 1 is a schematic diagram of the fixable perforated pancreatic duct built-in tube according to the present invention.

FIG. 2 is a front view of the fixable intra-pancreatic duct tube with holes according to the present invention.

FIG. 3 is a partially enlarged schematic view of the present invention between every two drainage holes in the lateral direction of the fixable perforated pancreatic duct built-in tube.

FIG. 4 is a partial enlarged schematic view of the annular arrangement between the longitudinal drainage holes on the fixable perforated pancreatic duct built-in tube according to the present invention.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that those skilled in the art can make various changes or modifications to the present invention after reading the contents described in the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

The reference numerals and components involved in the drawings are as follows:

1. Pancreatic duct built-in tube 2. Drainage hole 3. Fixed ear

Example of a fixable perforated pancreatic duct built-in tube

Please refer to Figures 1-4, Figure 1 is a schematic diagram of the fixable intra-pancreatic duct tube with holes according to the present invention. FIG. 2 is a front view of the fixable intra-pancreatic duct tube with holes according to the present invention. FIG. 3 is a partially enlarged schematic view of the present invention between every two drainage holes in the lateral direction of the fixable perforated pancreatic duct built-in tube. FIG. 4 is a partial enlarged schematic view of the annular arrangement between the longitudinal drainage holes on the fixable perforated pancreatic duct built-in tube according to the present invention.

A pancreatic duct built-in tube that can be fixed with a hole includes a pancreatic duct built-in tube 1, the pancreatic duct built-in tube is made of translucent silica gel, and the translucent silica gel material can be a biocompatible degradable material silica gel . The total length of the pancreatic duct built-in tube can be 100mm, and the diameter can be set to 2mm, and the total length of the pancreatic duct built-in canal can be modified according to the needs of the patient, so as to match the length of the pancreatic duct of different patients, which is beneficial to the patient's health. Drainage; drainage holes 2 are evenly arranged along the tube wall from left to right on the built-in pancreatic duct tube. The arrangement of the drainage holes can increase the outflow of pancreatic juice to a greater extent, improve its outflow efficiency, and achieve better drainage. Effect; the pancreatic duct built-in tube is also provided with fixed ears 3, the fixed ears facilitate the fixation of the patient's pancreatic duct, prevent the built-in tube from slipping, affect the drainage effect, and reduce unnecessary damage to the patient.

In this embodiment, it is preferable that the drainage holes 2 are evenly arranged in a ring shape around the pancreatic duct built-in tube, the number of drainage holes on the ring is set to 8, the diameter of the drainage holes is 0.3mm, and the top The distance between the drainage hole and the drainage hole at the bottom is 1mm.

In this embodiment, it is preferable that the distance between every two lateral drainage holes from left to right on the intrapancreatic duct tube is set to be 4 mm. The size of the distance can be clearly calculated, so that the operator can grasp the depth of the pancreatic duct, improve the accuracy of its operation, and reduce the operator's surgical burden. And the distance interval between the drainage hole 2 near the orifice of the intra-pancreatic duct tube and the orifice of the intra-pancreatic duct tube is set to be 0.5 mm. The setting of 0.5 mm between the drainage hole 2 and the mouth of the built-in pancreatic duct can facilitate the entry of pancreatic juice into the pancreatic duct and facilitate the discharge of pancreatic juice.

In this embodiment, it is preferable that the fixing ear 3 is arranged near the orifice of the intra-pancreatic duct, and the distance from the fixing ear 3 to the orifice of the intra-pancreatic duct is 30 mm, and the fixing ear is a cylindrical structure, The radius is set to 0.1mm, and the length and height are set to 1mm; and the setting of the fixing ears 3 can better fix it, reduce the incidence of pancreatic duct prolapse, avoid pancreatic exocrine obstruction, and reduce postoperative complications. The incidence of pancreaticoenteric anastomotic leakage improves the surgical success rate and quality of life of patients.

The method of use of the present invention: when in use, before the pancreaticojejunostomy, insert one end of the mouth of the canal that can be fixed with a hole in the pancreatic duct tube into the pancreatic duct, use absorbable thread to properly suture the fixed ear and fix it on the pancreas section, at the other end into the jejunal end. After a few weeks or months, the translucent silicone tube that can hold the pancreatic duct with a hole will fall off on its own, enter the intestine, and be expelled from the body.

It should be noted that: the present invention is simple in structure, ingenious in design, and convenient in manufacture, and the size of the device is designed to match the patient's pancreas-intestine and pancreas-stomach. Tube. Moreover, the setting of the fixed ear in the present invention can significantly increase the anti-slip ability of the pancreatic duct built-in tube, achieve a better fixation effect, reduce the incidence of postoperative pancreaticoenteric anastomotic leakage, and improve the patient's surgical success rate and efficiency. Quality of Life. The 4mm spacing between each two lateral drainage holes from left to right on the pancreatic duct built-in tube described in the present invention enables the operator to clearly calculate the distance between each two drainage holes according to the size of the distance between each two drainage holes. The size greatly reduces errors and makes the surgical operation more standardized, so that the operator can grasp the depth of the pancreatic duct, improve the accuracy of the operation, and reduce the operator's surgical burden.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and supplements can be made, and these improvements and supplements should also be considered as It is the protection scope of the present invention.

Claims (4)

1. a fixable built-in tube with a hole in the pancreatic duct, is characterized in that, comprises the built-in tube of the pancreatic duct, the built-in tube of the pancreatic duct is made of translucent silica gel, and the total length of the built-in tube of its pancreatic duct is 100-150mm, The diameter is set to 1.8-2.2 mm, and drainage holes are uniformly arranged along the wall of the pancreatic duct built-in tube from left to right, and the pancreatic duct built-in tube is also provided with fixed ears. 2. The fixable perforated pancreatic duct built-in tube according to claim 1, wherein the drainage holes are evenly arranged in a ring around the pancreatic duct built-in tube, and the number of the annular upper drainage holes is set to 6 -8, the diameter of the drainage holes is 0.2-0.4mm, and the distance between the drainage holes at the top and the drainage holes at the bottom is 0.8-1.2mm. 3. The fixable perforated pancreatic duct built-in tube according to claim 1, wherein the interval between each two lateral drainage holes from left to right on the pancreatic duct built-in tube is set to 3-5mm, And the distance interval between the drainage hole near the orifice of the intra-pancreatic duct tube and the orifice of the intra-pancreatic duct tube is set to be 0.4-0.6 mm. 4. The fixable perforated pancreatic duct built-in tube according to claim 1, wherein the fixed ear is arranged near the mouth of the pancreatic duct built-in tube, and the distance from the fixed ear to the pancreatic duct built-in tube mouth It is 28-32mm, and the fixing ear is a cylindrical structure, its radius is set to 0.1-0.2mm, and the length and height are both set to 1-2mm.

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