CN113752524A

CN113752524A - Mold for machining pancreatic duct drainage tube and machining method of pancreatic duct drainage tube

Info

Publication number: CN113752524A
Application number: CN202110951152.XA
Authority: CN
Inventors: 王海军; 陶忠; 史庆; 吴越; 林龑; 王昊飞
Original assignee: Baiwei Wuhan Medical Technology Co ltd
Current assignee: Baiwei Wuhan Medical Technology Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2021-12-07

Abstract

The invention discloses a mould for processing a pancreatic duct drainage tube and a processing method of the pancreatic duct drainage tube, wherein the mould for processing the pancreatic duct drainage tube comprises the following steps: the drainage tube mould comprises a first mould plate and a second mould plate, wherein the first mould plate and the second mould plate are buckled and spliced to form a main structure of the mould, and a clamping channel is formed when the first mould plate and the second mould plate are in a splicing state and is configured to accommodate the drainage tube; the plastic cavity is formed on the clamping channel; the inflation groove is formed in the first template and the second template and communicated with the clamping channel; the sealing part is arranged at one end, far away from the inflation groove, of the first template and is configured to be matched with the second template to clamp and fix the drainage tube; and the heating channels are arranged on the peripheral sides of the plastic cavity.

Description

Mold for machining pancreatic duct drainage tube and machining method of pancreatic duct drainage tube

Technical Field

The invention relates to medical equipment, in particular to a mold for machining a pancreatic duct drainage tube and a machining method of the pancreatic duct drainage tube.

Background

Currently, pancreaticoduodenectomy is the main treatment mode for treating pancreaticoduodenal cancer and peri-ascial cancer in clinic, and one of the important complications after the pancreaticoduodenectomy is pancreatic fistula. When the pancreaticotomy is performed, a pancreatic duct drainage tube with the same diameter is placed in the main pancreatic duct to drain pancreatic juice into the intestinal tract or drain pancreatic juice out of the body through the intestinal tract, so that pancreatic fistula can be effectively prevented.

In order to keep the position of the pancreatic duct drainage tube stable in the operation process, and simultaneously avoid pancreatic juice from leaking into other organs in the body to cause damage to the human body. Therefore, in order to block pancreatic juice from leaking out after the pancreatic duct is inserted into one end of the existing pancreatic duct drainage tube, a bulge is required to be processed on the drainage tube, and the opening of the pancreatic duct is blocked by the bulge, so that pancreatic juice is prevented from leaking out. However, in the prior art, the bulge on the pancreatic duct drainage tube is difficult to manufacture, so that the manufacturing difficulty is increased, the manufacturing cost is also increased, and correspondingly, the treatment cost of a patient can be increased.

Disclosure of Invention

The invention aims to provide a novel technical scheme of a mould for processing a pancreatic duct drainage tube and a processing method of the pancreatic duct drainage tube.

In a first aspect, an embodiment of the present application provides a mold for machining a pancreatic duct drainage tube, including:

the drainage tube clamping device comprises a first template and a second template, wherein the first template and the second template are buckled and spliced to form a main body structure of the mould, a first through groove and a second through groove are respectively formed in the first template and the second template along the length direction of the mould, when the first template and the second template are in a splicing state, the first through groove and the second through groove are combined to form a clamping channel, and the clamping channel is configured to accommodate the drainage tube;

the plastic cavity is formed on the clamping channel and is of a circular cavity structure;

the inflation groove is formed in the first template and the second template and communicated with the clamping channel;

the sealing part is arranged at one end, far away from the inflation groove, of the first template, the sealing part is configured to be matched with the second template to clamp and fix the drainage tube, and the shaping cavity is located between the inflation groove and the sealing part;

the heating channel, many the heating channel set up in the week side in the moulding chamber, the heating channel is configured to make in the moulding intracavity the drainage tube intensifies.

Optionally, the mold is further provided with a gas release channel, and the gas release channel is configured to communicate the molding cavity with the outside of the mold.

Optionally, the air release channel and the heating channel are arranged in parallel along the width direction of the mold, and the air release channel and the heating channel are arranged perpendicular to the clamping channel.

Optionally, the shaping cavity includes a first cavity and a second cavity, the first cavity is opened on the first template toward one side of the second template, and the second cavity is opened on the second template toward one side of the first template.

Optionally, the first cavity and the second cavity are the same in size, and the first cavity and the second cavity are buckled to form the circular plastic cavity.

Optionally, the sealing portion protrudes toward the second mold plate, and a serration portion is disposed on a side of the sealing portion close to the second mold plate.

Optionally, the die is provided with at least two limiting holes penetrating through the first die plate and the second die plate in the thickness direction, the two limiting holes are formed in opposite corners of the die, and limiting rods penetrate through the limiting holes.

In a second aspect, an embodiment of the present application provides a method for processing a pancreatic duct drainage tube, the drainage tube is placed in any one of the above molds, the drainage tube is fixed through the clamping channel, the heating channel is started, one end of the inflation groove continuously inflates air into the drainage tube, so that a portion of the drainage tube located in the shaping cavity expands and deforms, the inflation of the drainage tube is stopped, the first template and the second template are separated, and the drainage tube is taken out.

Optionally, before the drainage tube is placed into the mold, the heating channel is started, and the temperature of the heating channel is adjusted to 160 ℃ to 170 ℃ so as to preheat the plastic cavity.

Optionally, before the drainage tube is placed in the mold, the drainage tube is connected with an output end of an air pump, an output end of the air pump is placed in the inflation groove, and after the air pump is started, the air pressure of the air pump is kept constant between 0.5Mpa and 0.7 Mpa.

The inventor of the invention finds that in the prior art, due to the particularity of the pancreatic duct structure, a bulge structure needs to be arranged on the duct body in the manufacturing process of the drainage tube, the diameter of the bulge structure needs to be larger than that of the drainage tube body, so that smooth drainage of pancreatic juice can be ensured, and meanwhile, the opening is sealed through the bulge, and the pancreatic juice can be prevented from leaking outwards. However, when the pancreatic duct drainage tube is actually produced and manufactured, the manufacturing difficulty of the bulge on the pancreatic duct is high, so that the manufacturing cost of the pancreatic duct drainage tube is increased, and the cost of a patient in the treatment process is indirectly increased. Therefore, the technical task to be achieved or the technical problems to be solved by the present invention are never thought or anticipated by those skilled in the art, and therefore the present invention is a new technical solution.

When the mould for processing the pancreatic duct drainage tube is used for producing and manufacturing the pancreatic duct drainage tube, the forming difficulty of the bulge on the pancreatic duct drainage tube can be greatly reduced, and the production and manufacturing cost is reduced.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a cross-sectional view of a mold embodying the present application for fabricating a pancreatic duct drainage tube;

FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 3 is a perspective view of a mold embodying the present application for fabricating a pancreatic duct drainage tube;

fig. 4 is a sectional view taken in the direction of a-a in fig. 3.

Reference numerals

1. A mold; 11. a first template; 12. a second template; 13. a clamping channel; 131. a first through groove; 132. a second through groove; 14. a plastic cavity; 141. a first cavity; 142. a second cavity; 15. an inflation groove; 16. a sealing part; 161. a serration; 17. a heating channel; 18. an air escape channel; 19. a limiting hole; 191. a limiting rod; 192. and (4) guiding a sleeve.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In a first aspect, as shown in fig. 1 to 4, an embodiment of the present application provides a mold for machining a pancreatic duct drainage tube, including:

the drainage tube clamping device comprises a first template 11 and a second template 12, wherein the first template 11 and the second template 12 are buckled and spliced to form a main structure of the mold 1, a first through groove 131 and a second through groove 132 are respectively formed in the first template 11 and the second template 12 along the length direction of the mold 1, when the first template 11 and the second template 12 are in a splicing state, the first through groove 131 and the second through groove 132 are combined to form a clamping channel 13, and the clamping channel 13 is configured to accommodate the drainage tube; first through grooves 131 and second through grooves 132 are formed in the length direction of the first template 11 and the second template 12, after the first template 11 and the second template 12 are combined, the positions of the first through grooves 131 correspond to the positions of the second through grooves 132, and the first through grooves 131 and the second through grooves 132 are combined to form the clamping channel 13. The clamping channel 13 is used for accommodating a drainage tube, in the using process, after the first template 11 and the second template 12 are separated, the second template 12 is placed on the workbench, the drainage tube is placed in the second through groove 132, and finally the first template 11 and the second template 12 are buckled. Wherein, the shape of centre gripping passageway 13 and the shape looks adaptation of drainage tube can carry on spacingly to the drainage tube through centre gripping passageway 13, when avoiding the swell on the preparation drainage tube, because the diameter of centre gripping passageway 13 is too big or the size does not match with the drainage tube, leads to drainage tube major structure to take place the distortion, causes the emergence of the unable normal use of drainage tube etc. condition.

The plastic cavity 14 is formed on the clamping channel 13, and the plastic cavity 14 is of a circular cavity structure; a plastic cavity 14 is arranged on the middle section area of the clamping channel 13, part of the structure of the drainage tube is positioned in the plastic cavity 14, and the plastic cavity 14 provides an expansion space for the drainage tube.

The inflation groove 15 is formed in the first template 11 and the second template 12, and the inflation groove 15 is communicated with the clamping channel 13; the inflation channel 15 can be inflated with gas to expand and deform the draft tube located in the clamping channel 13, and since the main structure of the clamping channel 13 is adapted to the size of the draft tube, the only region where the draft tube can be deformed is the section of the draft tube located in the plastic cavity 14.

A sealing part 16, wherein the sealing part 16 is arranged at one end of the first template 11 far away from the inflation groove 15, the sealing part 16 is configured to cooperate with the second template 12 to clamp and fix the drainage tube, and the plastic cavity 14 is located between the inflation groove 15 and the sealing part 16; when the drainage tube is inflated through the inflation groove 15, the end part of the drainage tube is sealed by the sealing part 16, so that gas leakage is avoided, when gas in the inflation groove 15 is continuously input into the drainage tube, the stability of air pressure can be ensured, and the drainage tube positioned at the plastic cavity 14 can be uniformly expanded, so that a bulge is formed.

The heating channels 17 are arranged on the periphery of the plastic cavity 14, and the heating channels 17 are configured to heat the drainage tube in the plastic cavity 14. The drainage tube is usually the plastic material, so if directly aerify the drainage tube through inflating slot 15, make the drainage tube inflation deformation that is located moulding storehouse department, obviously the degree of difficulty is great, and the drainage tube of plastic material has elasticity, even the inflation deformation back, also can the reconversion. Therefore, the drainage tube positioned in the plastic cavity 14 is heated through the heating channel 17 to be heated, so that the plastic material is softened, the drainage tube is ventilated through the inflation groove 15, and the drainage tube positioned in the plastic cavity 14 is easier to deform due to the heated and softened drainage tube. Meanwhile, the heating changes the molecular structure in the drainage tube, so that the elastic recovery capability of the drainage tube in the plastic cavity 14 is greatly reduced, the drainage tube is cooled and taken out after the inflation is finished, and a bulge is formed on the drainage tube at the position corresponding to the plastic cavity 14.

Specifically, the end of the drainage tube can be connected with the output end of the air pump, and then the connection part is placed in the inflation groove 15, so that the air pressure of the output air can be controlled through the air pump, and the damage to the drainage tube caused by the excessive pressure in the moment is avoided. Meanwhile, after the drainage tube in the plastic cavity 14 area is ventilated and expanded to a preset size, the air pump can continuously and stably inflate the drainage tube, so that the air pressure in the drainage tube is ensured, the air pump is closed after the bulge of the drainage tube is stabilized for a period of time, and the forming effect of the bulge is improved. Meanwhile, the heating passage 17 may be designed as a passage with an electric heating wire built therein, and the molding chamber 14 may be heated by starting the electric heating wire and controlling the temperature of the electric heating wire, thereby achieving the effect of softening the drainage tube. Optionally, the mold 1 is further provided with a relief channel 18, and the relief channel 18 is configured to communicate the molding cavity 14 with the outside of the mold 1.

The mould 1 in this embodiment greatly reduced the preparation degree of difficulty of bulge on the drainage tube, only need according to corresponding step, be connected drainage tube and air pump, start heating channel 17 and preheat plastic-shaped cavity 14, put into second through-slot 132 with the drainage tube, with first template 11 and second template 12 lock, start the air pump this moment, to the stable air current of output in the drainage tube, make the drainage tube inflation deformation that is located plastic-shaped cavity 14 to form the bulge. The operation is very simple, the cost in the production and manufacturing process is reduced, and the cost of the patient during treatment can be further reduced.

Optionally, the mold 1 is further provided with a relief channel 18, and the relief channel 18 is configured to communicate the molding cavity 14 with the outside of the mold 1. Then, the drainage tube is placed in the second through groove 132, the first template 11 and the second template 12 are buckled, the first through groove 131 and the second through groove 132 form the clamping channel 13, and a plastic cavity 14 is formed at the same time, and at this time, the diameter of the plastic cavity 14 is larger than the tube diameter of the drainage tube. When the drainage tube is inflated, the expansion deformation of the drainage tube in the plastic cavity 14 gradually forms a bulge, the gas in the plastic cavity 14 is continuously compressed, and the gas in the plastic cavity 14 can be effectively discharged out of the body through the air leakage channel 18. Can avoid the atmospheric pressure in the plastic-shaped chamber 14 too big through the passageway 18 that loses heart, if not set up the passageway 18 that loses heart, because the gas in the plastic-shaped chamber 14 lasts exerts pressure to the swell gradually, the size that leads to the swell very easily can't reach the required size, the swell of deformity shape appears even, even swell and form the in-process drainage tube and break, and produce the wastrel, increased manufacturing cost, the passageway 18 that loses heart can effectual improvement yield.

Alternatively, the air-release channel 18 and the heating channel 17 are arranged in parallel along the width direction of the mold 1, and the air-release channel 18 and the heating channel 17 are arranged perpendicular to the clamping channel 13. Wherein, a plurality of heating channels 17 are uniformly arranged around the periphery of the plastic cavity 14, the clamping channel 13 is arranged along the length direction of the mould 1, and the air-release channel 18 and the heating channels 17 can be arranged along the width direction of the mould 1. Avoid losing influence each other between passageway 18, heating channel 17 and the centre gripping passageway 13 of leaking, if heating channel 17 and centre gripping passageway 13 parallel arrangement simultaneously, then can lead to the heated area of drainage tube too big, after the swell preparation is accomplished, drainage tube large tracts of land deformation leads to the drainage tube can't reach operation requirement. Therefore, the air-release channel 18 and the heating channel 17 are most preferably arranged in parallel along the width direction of the mold 1, but the air-release channel 18 and the heating channel 17 may not be arranged in parallel, for example, the heating channel 17 is arranged along the width direction of the mold 1, and the air-release channel 18 may be arranged towards any position without affecting the opening of the heating channel, the first through groove 131 and the second through groove 132.

Optionally, the plastic cavity 14 includes a first cavity 141 and a second cavity 142, the first cavity 141 is opened on the first mold plate 11 and faces the side of the second mold plate 12, and the second cavity 142 is opened on the second mold plate 12 and faces the side of the first mold plate 11. The size of the bulge on the drainage tube has a direct relation with the size of the shaping cavity 14, and the size of the bulge after shaping can be changed by changing the size of the shaping cavity 14 on the die 1. After the first template 11 and the second template 12 are fastened, the first cavity 141 and the second cavity 142 are correspondingly formed in the plastic cavity 14, and the first through groove 131 and the second through groove 132 are correspondingly formed in the clamping passage 13.

Optionally, the first cavity 141 and the second cavity 142 have the same size, and the first cavity 141 and the second cavity 142 are fastened to form the circular plastic cavity 14. The first cavity 141 and the second cavity 142 are both hemispherical cavities, the combined plastic cavity 14 is a spherical cavity, and when the drainage tube is machined in the spherical plastic cavity 14, the drainage tube in the plastic cavity 14 deforms to form a bulge structure with the same shape as the plastic cavity 14. The spherical bulge can reduce the damage to the internal structure of the human body, and can avoid leakage of pancreatic juice and damage to pancreatic ducts in the treatment process.

Alternatively, the sealing portion 16 may be provided to protrude toward the second die plate 12, and a serration 161 may be provided on a side of the sealing portion 16 close to the second die plate 12. The sealing part 16 is matched with the wall body of the second template 12 facing to one side of the first template 11, the end part of the drainage tube is fixedly held, and the situation that the position of the drainage tube is changed in the process of processing the drainage tube to form a bulge, so that the bulge cannot be formed at a specified position, and meanwhile, the tube body at the rest position of the drainage tube is deformed to cause defective products is avoided. Sawtooth portion 161 and second template 12 can further strengthen the fixed effect to the drainage tube towards the wall body cooperation of first template 11 one side, have a plurality of sawtooth on the sawtooth portion 161, can further strengthen the sealed effect to the drainage tube through sawtooth portion 161, when aerifing in the drainage tube, can make the atmospheric pressure in the drainage tube stable, avoid the air current to leak, lead to the swell can't reach the specified size.

Optionally, at least two limiting holes 19 penetrating through the first template 11 and the second template 12 are formed in the mold 1 along the thickness direction, the two limiting holes 19 are formed in opposite corners of the mold 1, and a limiting rod 191 penetrates through the limiting holes 19. Taking the first template 11 and the second template 12 as an example, two limiting holes 19 are formed in the thickness direction of the templates, the two limiting holes 19 are respectively formed in two opposite corners of the mold 1, limiting rods 191 penetrate through the limiting holes 19, and the first template 11 and the second template 12 are prevented from deviating in the use process of the mold 1 through the matching of the limiting rods 191 and the limiting holes 19. If the first template 11 and the second template 12 are shifted during the use process, the positions of the first cavity 141 and the second cavity 142 and the positions of the first through groove 131 and the second through groove 132 are not corresponded any more, so that the structures of the plastic cavity 14 and the clamping channel 13 are changed, and in the process of forming a bulge on the drainage tube by processing the drainage tube, the drainage tube with a correct structure cannot be processed finally due to the change of the structures of the plastic cavity 14 and the clamping channel 13, which causes waste. Therefore, the problem can be effectively solved through the matching of the limiting rod 191 and the limiting hole 19, and the yield of the drainage tube processing is improved. When the first template 11 and the second template 12 are buckled, the limiting holes 19 are formed, so that the clamping channel 13 and the plastic cavity 14 can be formed in the mold 1 only by corresponding the positions of the limiting holes 19 and inserting the limiting holes 19, and the working personnel are not required to calibrate, thereby further simplifying the processing difficulty.

Specifically, a limiting groove is formed in the edge of the limiting hole 19 on the side, away from the second formwork 12, of the first formwork 11, the limiting rod 191 is t-shaped, the end, with the larger diameter, of the limiting rod 191 is embedded into the limiting groove, and the limiting effect of the limiting rod 191 on the first formwork 11 and the second formwork 12 is further enhanced through the matching of the limiting groove and the end of the limiting rod 191. Meanwhile, the inner wall of the part, where the limiting hole 19 is opened in the second template 12, may be provided with a guide sleeve 192, and when the limiting rod 191 is inserted into the limiting hole 19, the guide sleeve 192 may effectively prevent the limiting rod 191 from damaging the inner wall of the part, where the limiting hole 19 is opened in the second template 12. Even though the gag lever post 191 has caused the damage to guide pin bushing 192, only need change guide pin bushing 192, mould 1 alright in normal use, reduced mould 1's use cost.

In a second aspect, the embodiment of the present application provides a method for processing a pancreatic duct drainage tube, the drainage tube is placed in any one of the above-mentioned molds 1, the drainage tube is fixed through the clamping channel 13, the heating channel 17 is started, one end of the inflation groove 15 continuously inflates air into the drainage tube, so that the drainage tube is located in the plastic cavity 14, the drainage tube is inflated and deformed, the drainage tube is stopped, the first mold plate 11 and the second mold plate 12 are separated, and the drainage tube is taken out. Specifically, the first template 11 and the second template 12 are separated, the drainage tube is placed in the second through groove 132, the first template 11 is buckled on the second template 12, and the limiting rod 191 is inserted into the limiting hole 19, so that the plastic cavity 14 and the clamping channel 13 are guaranteed against structure change. At this time, the relative position between the first template 11 and the second template 12 is fixed, no offset occurs, the sealing part 16 compresses the end of the drainage tube on the second template 12, the sawtooth part 161 and the second template 12 are matched to further fix the drainage tube, the stability of the position of the drainage tube in the processing process is ensured, and meanwhile, air leakage in the processing process is avoided. And then heating up and heating part of the drainage tube in the shaping cavity 14 through the heating channel 17 to soften the drainage tube, continuously inflating the drainage tube after starting the air pump, and thus deforming part of the drainage tube in the shaping cavity 14 to form a bulge on the drainage tube. By the aid of the processing method, the drainage tube is processed by the die 1, so that the bulge can be simply manufactured on the drainage tube, and meanwhile, the drainage tube is low in cost and convenient to produce in a large scale.

Specifically, one end of the drainage tube is pressed by the saw-toothed portion 161, and the other end is connected to the output end of the air pump, which may cause deformation of the structures at both ends of the drainage tube, so that the deformed portions at both ends of the drainage tube may be removed after the bulge is processed.

Optionally, before the draft tube is placed in the mold 1, the heating channel 17 is activated, and the temperature of the heating channel 17 is adjusted to 160 ℃ to 170 ℃ to preheat the plastic cavity 14. In order to further accelerate the processing efficiency of the draft tube, the heating channel 17 may be started in advance, the heating channels 17 are disposed on the first mold plate 11 and the second mold plate 12, and the inner walls of the first cavity 141 and the second cavity 142 may be heated through the heating channels 17. After the drainage tube is placed in the second through groove 132, the first template 11 and the second template 12 are fastened together, and the formed shaping cavity 14 has a certain temperature. When the air pump is used to inflate the drainage tube, the portion of the drainage tube located within the plastic cavity 14 can be rapidly expanded to a predetermined size. Meanwhile, the temperature of the heating channel 17 can be correspondingly changed according to the difference of the material and the thickness of the drainage tube, for example, the thickness of the drainage tube is thicker, and the temperature of the heating channel 17 can be correspondingly increased. When the air pump is used for inflating the drainage tube, the heating channel 17 can be kept open, and the heating channel 17 can also be closed.

Specifically, the temperature range can guarantee that the drainage tube softens, but keeps certain intensity, if the temperature of heating passageway 17 is too high, the drainage tube can be after inflation, can lead to the pipe wall of drainage tube too thin or even appear the hole, the temperature is low can lead to blowing the drum or blowing behind the drum, the drainage tube comparatively obvious resilience appears, leads to the diameter of swell to reach the size that requires.

Optionally, before the drainage tube is placed in the mold 1, the drainage tube is connected to an output end of an air pump, an output end of the air pump is placed in the inflation groove 15, and after the air pump is started, the air pressure of the air pump is kept constant between 0.5Mpa and 0.7 Mpa. If the air pressure of the air pump is too high, other portions of the guide tube not disposed in the plastic cavity 14 may be deformed, and the drainage tube may not be used. If the air pressure of the air pump is too low, the drainage tube in the shaping cavity 14 cannot be expanded to a specified size.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A mould for processing a pancreatic duct drainage tube is characterized by comprising:

2. The mold for processing a pancreatic duct drainage tube as claimed in claim 1, wherein a venting channel is further provided on the mold, and the venting channel is configured to communicate the plastic cavity with the outside of the mold.

3. The mold for manufacturing a pancreatic duct drainage tube according to claim 2, wherein said air release channel and said heating channel are disposed in parallel along the width direction of said mold, and said air release channel and said heating channel are disposed perpendicular to said holding channel.

4. The mold for manufacturing a pancreatic duct drainage tube according to claim 1, wherein said plastic cavity comprises a first cavity and a second cavity, said first cavity is opened on the side of said first template facing said second template, said second cavity is opened on the side of said second template facing said first template.

5. The mold for manufacturing a pancreatic duct drainage tube according to claim 4, wherein the first cavity and the second cavity are the same in size, and the first cavity and the second cavity are buckled to form the circular plastic cavity.

6. The mold for manufacturing a pancreatic duct drainage tube according to claim 1, wherein said sealing portion is provided to protrude toward said second template, and a serrated portion is provided on a side of said sealing portion adjacent to said second template.

7. The mold for manufacturing a pancreatic duct drainage tube according to claim 1, wherein at least two limiting holes are formed in the mold in the thickness direction and penetrate through the first template and the second template, the two limiting holes are formed at opposite corners of the mold, and a limiting rod is inserted into the limiting holes.

8. A method for manufacturing a pancreatic duct drainage tube, comprising placing the drainage tube into the mold of any one of claims 1 to 7, fixing the drainage tube through the clamping channel, activating the heating channel, continuously inflating the drainage tube with one end of the inflation groove to expand and deform a portion of the drainage tube located in the shaping cavity, stopping inflating the drainage tube, separating the first template from the second template, and taking out the drainage tube.

9. The method for manufacturing a pancreatic duct drainage tube according to claim 8, wherein said heating channel is activated before said drainage tube is placed in said mold, and the temperature of said heating channel is adjusted to 160 ℃ to 170 ℃ to preheat said plastic cavity.

10. The pancreatic duct drainage tube processing method according to claim 8, wherein before placing the drainage tube into the mold, the drainage tube is connected with the output end of an air pump, the output end of the air pump is placed in the inflation groove, and after starting the air pump, the air pressure of the air pump is kept constant between 0.5Mpa and 0.7 Mpa.