A gastrointestinal anastomotic fistula recovery and closure component

Abstract

The present invention relates to the technical field of medical devices, and discloses a gastrointestinal anastomotic fistula recovery and closure component, comprising: a drainage tube, an outer ring of the drainage tube is spirally wound with an adsorption sponge, the adsorption sponge comprises a dense section and a loose section, the outer edge of the dense section is in contact with the intestinal wall at the anastomotic fistula, the drainage tube is provided with adsorption holes that cooperate with the dense section, and the drainage tube is connected to a negative pressure drainage part. By using the gastrointestinal anastomotic fistula recovery and closure component described in the present invention, adsorption ports can be opened at corresponding positions of the drainage tube according to the number, length, and specific location distribution of the anastomotic fistulas, and an adsorption sponge can be spirally wound around the outer ring of the drainage tube, forming a dense section in the area near the adsorption holes and a loose section in the area between two adjacent groups of adsorption holes. After the drainage tube is placed in the intestine, multiple dense sections fill the corresponding anastomotic fistulas and the surrounding part of the intestine, and can continuously absorb secretions and digestive fluids at multiple gastrointestinal anastomotic fistulas.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more particularly to a gastrointestinal anastomotic fistula recovery and blocking component. Background Art

[0002] Gastrointestinal diseases refer to diseases that occur in the stomach, small intestine, large intestine and other parts of the body. They are a common and complex disease. When the condition is serious to a certain extent, surgical resection of the local intestine is sometimes required to achieve the treatment purpose. After the resection is completed, the continuity of the intestine needs to be restored by means of a stapler or manual suture. After intestinal reconstruction, the accumulation of secretions and digestive fluids at the anastomosis will affect the healing of the wound, making the anastomosis susceptible to bacterial infection, and then causing gastrointestinal anastomotic fistula. If the secretions continue to increase, it may cause systemic peritonitis and even endanger the patient's life. When anastomotic fistula occurs, an existing treatment method is to place an adsorption sponge at the anastomotic fistula and connect it to a negative pressure drainage bottle. The adsorption sponge first absorbs the secretions and digestive fluids at the anastomotic fistula, and the negative pressure drainage bottle then uses the action of negative pressure to suck the secretions and digestive fluids in the adsorption sponge into the bottle, thereby ensuring that the anastomosis can heal normally and achieve the purpose of treating gastrointestinal anastomotic fistula.

[0003] This existing treatment method is only applicable to cases where only one gastrointestinal anastomotic fistula occurs. It is no longer applicable to cases where multiple gastrointestinal anastomotic fistulas occur, and its applicability is poor. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide a gastrointestinal anastomotic fistula recovery and blocking component that can simultaneously treat gastrointestinal anastomotic fistulas at multiple different locations by adjusting the density of the spiral adsorption sponge.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is to provide a gastrointestinal anastomotic fistula recovery and sealing component, comprising: a drainage tube, the outer circle of the drainage tube is spirally wound with an adsorption sponge, the pitch of the adsorption sponge is adjustable, the adsorption sponge includes a dense section and a loose section, the outer edge of the dense section is attached to the intestinal wall at the anastomotic fistula, the pitch of the dense section is consistent with the width of the adsorption sponge, the loose section is located between two adjacent dense sections, the drainage tube is provided with an adsorption hole that cooperates with the dense section, and the drainage tube is connected to a negative pressure drainage part.

[0006] Preferably, the adsorption holes are symmetrically distributed about the centerline of the drainage tube, with two symmetrically distributed adsorption holes corresponding to a complete spiral segment of the dense section. The adsorption holes are formed by laser drilling. This design, through the symmetrical distribution of adsorption holes, provides a more uniform distribution of suction force on the dense section, ensuring that the dense section can continuously absorb secretions and digestive fluids around it.

[0007] Preferably, the cross section of the adsorption sponge is rectangular. Such a design can form a seamless dense segment structure, which is beneficial to improving the absorption effect of the dense segment on secretions and digestive fluids at the anastomotic fistula.

[0008] Preferably, the adsorption sponge is made of polyurethane. With this design, the adsorption sponge can quickly absorb secretions and digestive fluids at the anastomotic fistula, thereby accelerating the healing of the anastomotic fistula.

[0009] Preferably, the adsorption sponge is tied to the drainage tube. Such a design can facilitate the fixation of the adsorption sponge on the drainage tube.

[0010] Preferably, the adsorption sponge is bonded to the drainage tube. With this design, the adsorption sponge can be quickly fixed to the drainage tube, and the adsorption sponge will not cause excessive squeezing of the drainage tube, thereby affecting the flow performance of the drainage tube.

[0011] Preferably, the outer surface of the adsorption sponge is covered with a hydrolytic membrane, the top of the hydrolytic membrane is sealed, and the bottom of the hydrolytic membrane has an opening. The bottom of the hydrolytic membrane is sealed by a throat clamp, and the throat clamp is placed on the outer ring of the hydrolytic membrane. With this design, the negative pressure drainage unit can absorb the gas in the hydrolytic membrane through the adsorption holes, thereby compressing the adsorption sponge, so that the drainage tube wrapped with the adsorption sponge can be placed into the patient's intestines.

[0012] Preferably, the outer ring of the drainage tube is fixed with a sealing sleeve made of a hard material, and the bottom end of the hydrolysis membrane covers the outer ring of the sealing sleeve. This design can prevent the throat clamp from over-squeezing the drainage tube, ensuring that the drainage tube maintains good fluidity.

[0013] Preferably, the negative pressure drainage unit includes a collecting bottle, a negative pressure pump, a one-way valve, a connecting pipe, a guide tube, an adapter, and a flow-stop clamp. The negative pressure pump and the one-way valve are both fixedly mounted on the collecting bottle. One end of the connecting pipe is connected to the liquid inlet of the one-way valve, and the other end of the connecting pipe is connected to the drainage tube via an adapter. One end of the guide tube is connected to the liquid outlet of the one-way valve, and the other end of the guide tube extends into the collecting bottle. The flow-stop clamp is mounted on the connecting pipe. This design allows the negative pressure to be generated by the negative pressure pump, thereby drawing secretions and digestive fluid from the anastomotic fistula into the collecting bottle.

[0014] Preferably, the bottom of the drainage tube is connected to a branch tube, which is located on the side of the sealing sleeve away from the adsorption sponge. The connecting piece is a hollow structure, comprising a mounting section and a plug-in section. The mounting section is fixedly sleeved on the inner ring of the connecting tube, and the plug-in section is plugged into the branch tube. The outer diameter of the plug-in section is slightly larger than the inner diameter of the branch tube, and the end of the plug-in section away from the mounting section is chamfered. This design facilitates the connection between the connecting tube and the branch tube, and provides a stable connection between the connecting tube and the branch tube.

[0015] The beneficial effects of the present invention are:

[0016] 1. By using the gastrointestinal anastomotic fistula restoration and occlusion assembly described in the present invention, adsorption ports can be opened at corresponding positions of the drainage tube according to the number, length, and specific location distribution of the anastomotic fistulas, and an adsorption sponge can be spirally wound around the outer ring of the drainage tube. During the process of winding the adsorption sponge, by adjusting the pitch of the adsorption sponge, a dense section is formed in the area near the adsorption holes, and a loose section is formed in the area between two adjacent groups of adsorption holes. After the drainage tube wrapped with the adsorption sponge is placed in the patient's intestine, multiple dense sections fill the corresponding anastomotic fistulas and the surrounding parts of the intestine. Under the action of negative pressure, the multiple dense sections can continuously absorb secretions and digestive fluids at multiple anastomotic fistulas, thereby achieving the purpose of synchronous treatment of gastrointestinal anastomotic fistulas at multiple different locations;

[0017] 2. The overall strength of the drainage tube can be adjusted by adjusting the density of the adsorption sponge winding. By adjusting the negative pressure generated by the negative pressure drainage part, the degree of compression of the adsorption sponge by the hydrolysis membrane can be adjusted, thereby adjusting the overall strength of the drainage tube. Through the joint adjustment of these two aspects, the overall strength of the drainage tube can be made appropriate, which facilitates the placement of the drainage tube into the patient's intestine without causing significant damage to the patient's intestine. The hydrolysis membrane has a lubricating effect, which can reduce the friction of the drainage tube and the adsorption sponge on the intestine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a gastrointestinal anastomotic fistula restoration and closure component;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the drainage tube and the adsorption sponge;

[0020] Figure 3 1. It is a schematic diagram of a front view and cross section of a gastrointestinal anastomotic fistula restoration and closure assembly;

[0021] Figure 4 yes Figure 3 A magnified view of the structure at center A;

[0022] Figure 5 yes Figure 3 A magnified view of the structure at B in the middle;

[0023] Figure 6 yes Figure 3 A magnified view of the structure at center C;

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the gastrointestinal anastomotic fistula recovery and sealing component after the hydrolysis membrane is wrinkled (excluding the negative pressure drainage part).

[0025] In the figure: 100, drainage tube; 110, adsorption hole; 120, branch pipe; 200, adsorption sponge; 210, dense section; 220, loose section; 300, negative pressure drainage part; 310, collecting bottle; 320, negative pressure pump; 330, one-way valve; 340, connecting pipe; 350, guide tube; 360, adapter; 361, installation section; 362, plug-in section; 370, stop clamp; 400, hydrolysis membrane; 500, throat clamp; 600, sealing sleeve. DETAILED DESCRIPTION

[0026] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be varied without departing from the scope of protection of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0027] In order to better understand the present invention, Figure 1-Figure 7 A gastrointestinal anastomotic fistula recovery and sealing component of the present invention is described in detail.

[0028] Example 1:

[0029] like Figures 1-4 As shown, a gastrointestinal anastomotic fistula recovery and sealing component includes: a drainage tube 100, an outer circle of the drainage tube 100 is spirally wound with an adsorption sponge 200, the pitch of the adsorption sponge 200 is adjustable, the adsorption sponge 200 includes a dense section 210 and a loose section 220, the outer edge of the dense section 210 is attached to the intestinal wall at the anastomotic fistula, the pitch of the dense section 210 is consistent with the width of the adsorption sponge 200, the loose section 220 is located between two adjacent dense sections 210, the drainage tube 100 is provided with an adsorption hole 110 that cooperates with the dense section 210, and the drainage tube 100 is connected to a negative pressure drainage part 300.

[0030] It should be noted that the drainage tube 100 is a flexible tube. Before draining the secretions and digestive fluids at the gastrointestinal anastomotic fistula, an endoscope is used to detect and measure the length of the anastomotic fistula and the specific location distribution of the anastomotic fistula in the intestine. Based on the measured data, a plurality of adsorption holes 110 are opened on the drainage tube 100. Subsequently, an adsorption sponge 200 is spirally wound around the outer ring of the drainage tube 100, and the adsorption sponge 200 completely covers the adsorption holes 110.

[0031] The adsorption holes 110 are spaced apart along the length of the drainage tube 100. The number of adsorption holes 110 is related to the number and length of the anastomotic fistula. Each anastomotic fistula corresponds to a group of adsorption holes 110. The longer the anastomotic fistula is, the more adsorption holes 110 are in the corresponding group. This ensures that the densely wound section 210 can completely fill the anastomotic fistula and the surrounding part of the intestine after entering the intestine, and absorb the secretions and digestive fluids at the anastomotic fistula, thereby ensuring the drainage effect and improving the treatment efficiency of the gastrointestinal anastomotic fistula.

[0032] When winding the adsorption sponge 200, in the area near the adsorption holes 110, the adsorption sponge 200 is wound in a tight spiral along the length direction of the drainage tube 100, with each circle of the adsorption sponge 200 closely attached to the previous circle of the adsorption sponge 200, thereby forming a dense section 210. In the area between two adjacent groups of adsorption holes 110, the adsorption sponge 200 is wound in a loose spiral along the length direction of the drainage tube 100, thereby forming a loose section 220.

[0033] Under the winding of the dense section 210, the strength of the portion of the drainage tube 100 covered by the dense section 210 is improved, which is conducive to the placement of the drainage tube 100 into the patient's intestine. The pitch of the loose section 220 is determined according to specific circumstances, including the material of the drainage tube 100, the diameter of the drainage tube 100, the material of the adsorption sponge 200, the size of the adsorption sponge 200, etc. It is necessary to ensure that the strength of the portion of the drainage tube 100 wrapped by the loose section 220 is also improved to an appropriate level to ensure that the drainage tube 100 can be smoothly placed in the patient's intestine without stacking.

[0034] The pitch of the adsorption sponge 200 refers to the distance between two adjacent circles of the adsorption sponge 200. Similarly, the pitch of the dense section 210 is the distance between two adjacent circles of the adsorption sponge 200 in the dense section 210, and the pitch of the loose section 220 is the distance between two adjacent circles of the adsorption sponge 200 in the loose section 220.

[0035] After the gastrointestinal anastomotic fistula recovery and sealing component is assembled, with the assistance of X-ray or CT images, the drainage tube 100 wrapped with the adsorption sponge 200 is placed into the patient's intestine to ensure that the dense section 210 accurately reaches the corresponding anastomotic fistula. The dense section 210 will absorb the secretions and digestive fluids at the anastomotic fistula. Subsequently, the negative pressure drainage section 300 is started to generate negative pressure, so that the inside of the drainage tube 100 is in a negative pressure state, and the secretions and digestive fluids absorbed by the dense section 210 are sucked into the drainage tube 100 through the adsorption hole 110, and the dense section 210 is prompted to continue to absorb the secretions and digestive fluids at the anastomotic fistula. The secretions and digestive fluids in the drainage tube 100 flow into the negative pressure drainage section 300 for collection.

[0036] In this embodiment, two dense sections 210 are provided and one loose section 220 is provided. This corresponds to a situation where two anastomotic fistulas appear in the patient's intestine and the distance between the two anastomotic fistulas is large. After the drainage tube 100 wrapped with the adsorption sponge 200 is placed in the patient's intestine, the two dense sections 210 respectively fill the intestines in the areas where the two anastomotic fistulas are located.

[0037] When multiple anastomotic fistulas occur and the distance between two adjacent anastomotic fistulas is large, the number of dense segments 210 wrapped is consistent with the number of anastomotic fistulas. After the drainage tube 100 wrapped with the adsorption sponge 200 is placed in the patient's intestine, each dense segment 210 fills the intestine in the area where the corresponding anastomotic fistula is located.

[0038] By using a gastrointestinal anastomotic fistula recovery and sealing component of the present invention, an adsorption port can be opened at the corresponding position of the drainage tube 100 according to the number, length, and specific location distribution of the anastomotic fistula, and an adsorption sponge 200 can be spirally wound around the outer circle of the drainage tube 100. In the process of winding the adsorption sponge 200, by adjusting the pitch of the adsorption sponge 200, a dense section 210 is formed in the area near the adsorption hole 110, and a loose section 220 is formed in the area between two adjacent groups of adsorption holes 110. After the drainage tube 100 wrapped with the adsorption sponge 200 is placed in the patient's intestine, multiple dense sections 210 fill the corresponding anastomotic fistula and the surrounding part of the intestine. Under the action of negative pressure, the multiple dense sections 210 can continuously absorb secretions and digestive fluids at multiple anastomotic fistulas, thereby achieving the purpose of synchronous treatment of gastrointestinal anastomotic fistulas at multiple different positions.

[0039] Example 2:

[0040] As an optimization of Example 1, Figure 3 and Figure 4 As shown, the adsorption holes 110 are symmetrically distributed about the center line of the drainage tube 100 , and two adsorption holes 110 symmetrically distributed about the center line of the drainage tube 100 correspond to a complete spiral segment of the dense segment 210 . The adsorption holes 110 are formed by laser drilling.

[0041] It should be noted that after the length and position of the anastomotic fistula are measured, an adsorption hole 110 is opened on the drainage tube 100 by laser drilling. Each time laser drilling is performed, two adsorption holes 110 symmetrically distributed about the center line of the drainage tube 100 will be formed on the drainage tube 100, and these two adsorption holes 110 correspond to a complete spiral segment of the dense segment 210. The suction force generated by the adsorption holes 110 on the dense segment 210 is relatively evenly distributed, and most of the secretions and digestive fluids in the dense segment 210 can be sucked into the drainage tube 100, ensuring the continuous absorption effect of the dense segment 210 on the surrounding secretions and digestive fluids; opening the adsorption holes 110 by laser drilling can ensure the accuracy of the position of the adsorption holes 110, and the hole opening efficiency is high, and the adsorption holes 110 have good permeability, which is conducive to the secretions and digestive fluids in the dense segment 210 being sucked into the drainage tube 100 through the adsorption holes 110.

[0042] Example 3:

[0043] As an optimization of Example 2, Figure 2-Figure 4 As shown, the cross section of the adsorption sponge 200 is rectangular.

[0044] It should be noted that since the cross-section of the adsorption sponge 200 is rectangular, in the process of winding the dense section 210, the side of each circle of the adsorption sponge 200 can be close to the side of the previous circle of the adsorption sponge 200, and the adsorption sponge 200 is close to the outer surface of the drainage tube 100, forming a seamless dense section 210 structure. The secretions and digestive fluids absorbed by the dense section 210 can more easily enter the drainage tube 100 through the adsorption holes 110, and the dense section 210 has a better absorption effect on secretions and digestive fluids.

[0045] Example 4:

[0046] As an optimization of Example 3, the adsorption sponge 200 is made of polyurethane.

[0047] It should be noted that the adsorption sponge 200 made of polyurethane has a high absorption capacity, can quickly absorb a large amount of secretions and digestive fluids, promote the proliferation of granulation tissue, and accelerate the healing of anastomotic fistula; the adsorption sponge 200 made of polyurethane has good elasticity and durability, can adapt to the shape changes of anastomotic fistula, and ensure continuous and effective drainage; the adsorption sponge 200 made of polyurethane has good corrosion resistance and hydrolysis resistance, which can ensure that the adsorption sponge 200 can maintain stable performance during the treatment process.

[0048] Example 5:

[0049] As an optimization of Example 4, the adsorption sponge 200 is tied to the drainage tube 100 .

[0050] It should be noted that medical threads are tied at both ends of each dense section 210, and the adsorption sponge 200 is fixed to the drainage tube 100 through the medical threads. The operation is convenient and can ensure that the dense section 210 will not shift as a whole. Since the dense section 210 is tightly wound, the dense section 210 will not become loose when both ends are fixed. For the loose section 220, medical threads can be tied at equal intervals to properly fix the loose section 220 to ensure that the effect of the loose section 220 on improving the strength of the drainage tube 100 is not significantly affected. During the tying process, it is necessary to control the tightness of the tying to prevent the adsorption sponge 200 from excessively squeezing the drainage tube 100 and to ensure that the circulation effect of the drainage tube 100 remains good.

[0051] Example 6:

[0052] As an optimization of Example 4, the adsorption sponge 200 is adhered to the drainage tube 100 .

[0053] It should be noted that medical-grade super glue is applied to the surface of the drainage tube 100. When applying, avoid the adsorption holes 110 to prevent the medical-grade super glue from being applied to the adsorption holes 110 and causing the adsorption holes 110 to be blocked. After applying, the adsorption sponge 200 is wrapped and fixed on the drainage tube 100 according to a preset plan. Even if the strength of the drainage tube 100 is relatively small, the adsorption sponge 200 will not excessively squeeze the drainage tube 100.

[0054] Example 7:

[0055] As an optimization of Example 6, Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, a hydrolysis membrane 400 is provided on the outside of the adsorption sponge 200, the top of the hydrolysis membrane 400 is sealed, the bottom of the hydrolysis membrane 400 has an opening, and the bottom of the hydrolysis membrane 400 is sealed by a throat hoop 500, which is provided on the outer ring of the hydrolysis membrane 400.

[0056] It should be noted that the negative pressure drainage part 300 can extract the gas in the hydrolysis membrane 400 through the adsorption holes 110, causing the hydrolysis membrane 400 to shrink and compress the adsorption sponge 200, thereby reducing the outer diameter of the adsorption sponge 200. This is conducive to placing the drainage tube 100 wrapped with the adsorption sponge 200 into a preset position in the patient's intestine. After a period of time, under the action of intestinal fluid in the intestine, the hydrolysis membrane 400 is hydrolyzed, releasing the adsorption sponge 200, and the adsorption sponge 200 re-expands. The dense section 210 contacts the intestinal wall at the anastomotic fistula and begins to absorb secretions and digestive fluids.

[0057] After the hydrolyzed film 400 compresses the adsorption sponge 200, the overall strength of the drainage tube 100 wrapped with the adsorption sponge 200 can be further improved. By adjusting the negative pressure generated by the negative pressure drainage part 300, the overall strength of the drainage tube 100 wrapped with the adsorption sponge 200 can be adjusted appropriately. The material of the hydrolyzed film 400 is polylactic acid or polyglycolic acid. The hydrolyzed film 400 can serve as a lubricating barrier to reduce the friction between the drainage tube 100 and the adsorption sponge 200 and the intestine.

[0058] Example 8:

[0059] As an optimization of Example 7, Figure 4 As shown, the outer ring of the drainage tube 100 is fixed with a sealing sleeve 600 , which is made of a hard material. The bottom end of the hydrolysis membrane 400 covers the outer ring of the sealing sleeve 600 .

[0060] It should be noted that the material of the sealing sleeve 600 can be hard plastic, ceramic or metal, the throat clamp 500 is arranged on the outside of the sealing sleeve 600, and the bottom end of the hydrolysis membrane 400 is located between the sealing sleeve 600 and the throat clamp 500. By setting the sealing sleeve 600, when the throat clamp 500 is used to seal the bottom end of the hydrolysis membrane 400, the drainage tube 100 will not be excessively squeezed, thereby affecting the flow performance of the drainage tube 100.

[0061] Example 9:

[0062] As an optimization of Example 8, Figure 1 and Figure 3 As shown, the negative pressure drainage part 300 includes a collecting bottle 310, a negative pressure pump 320, a one-way valve 330, a connecting pipe 340, a guide pipe 350, an adapter 360 and a stop clamp 370. The negative pressure pump 320 and the one-way valve 330 are both fixedly installed on the collecting bottle 310. One end of the connecting pipe 340 is connected to the liquid inlet of the one-way valve 330, and the other end of the connecting pipe 340 is connected to the drainage pipe 100 through the adapter 360. One end of the guide pipe 350 is connected to the liquid outlet of the one-way valve 330, and the other end of the guide pipe 350 extends into the collecting bottle 310. The stop clamp 370 is sleeved on the connecting pipe 340.

[0063] It should be noted that the negative pressure pump 320 can extract the gas in the collection bottle 310 to form a negative pressure environment, the one-way valve 330 can prevent the backflow of gas and liquid, and the stop clamp 370 can control the on-off of the connecting tube 340, thereby controlling whether the secretions and digestive fluids at the anastomotic fistula are absorbed. The secretions and digestive fluids in the drainage tube 100 enter the collection bottle 310 in turn through the connecting tube 340, the one-way valve 330 and the diversion tube 350.

[0064] Example 10:

[0065] As an optimization of Example 9, Figure 5-Figure 7 As shown, the bottom of the drainage tube 100 is connected to a branch pipe 120, and the branch pipe 120 is located on the side of the sealing sleeve 600 away from the adsorption sponge 200. The connecting piece is a hollow structure, and the connecting piece includes a mounting section 361 and a plug-in section 362. The mounting section 361 is fixedly sleeved on the inner ring of the connecting pipe 340, and the plug-in section 362 is plugged into the branch pipe 120. The outer diameter of the plug-in section 362 is slightly larger than the inner diameter of the branch pipe 120, and a chamfer is provided on the end of the plug-in section 362 away from the mounting section 361.

[0066] It should be noted that by setting the chamfer, a guiding role can be played so that the plug-in section 362 can be inserted into the branch pipe 120. The outer diameter of the plug-in section 362 is slightly larger than the inner diameter of the branch pipe 120. After the plug-in section 362 is inserted into the branch pipe 120, the branch pipe 120 elastically expands to ensure the tightness and stability of the connection between the plug-in section 362 and the branch pipe 120, and the connection between the connecting pipe 340 and the branch pipe 120 is well sealed.

[0067] The embodiments of the invention are described above in conjunction with the accompanying drawings, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms without departing from the purpose of this embodiment and the scope of protection of the claims, all of which are protected by this embodiment.

Claims

1. A gastrointestinal anastomotic fistula recovery and closure component, characterized in that: include: A drainage tube (100), wherein an outer ring of the drainage tube (100) is spirally wound with an adsorption sponge (200), the pitch of the adsorption sponge (200) is adjustable, the adsorption sponge (200) comprises a dense section (210) and a loose section (220), the outer edge of the dense section (210) is attached to the intestinal wall at the anastomotic fistula, the pitch of the dense section (210) is consistent with the width of the adsorption sponge (200), the loose section (220) is located between two adjacent dense sections (210), the drainage tube (100) is provided with an adsorption hole (110) cooperating with the dense section (210), and the drainage tube (100) is connected to a negative pressure drainage portion (300); The adsorption holes (110) are symmetrically distributed about the center line of the drainage tube (100), and two adsorption holes (110) symmetrically distributed about the center line of the drainage tube (100) correspond to a complete spiral segment of the dense segment (210), and the adsorption holes (110) are formed by laser drilling.

2. A gastrointestinal anastomotic fistula recovery and blocking assembly according to claim 1, characterized in that: The cross section of the adsorption sponge (200) is rectangular.

3. A gastrointestinal anastomotic fistula recovery and blocking assembly according to claim 1, characterized in that: The adsorption sponge (200) is made of polyurethane.

4. A gastrointestinal anastomotic fistula recovery and blocking assembly according to claim 1, characterized in that: The adsorption sponge (200) is tied to the drainage tube (100).

5. The gastrointestinal anastomotic fistula recovery and blocking assembly according to claim 1, characterized in that: The adsorption sponge (200) is bonded to the drainage tube (100).

6. A gastrointestinal anastomotic fistula recovery and blocking assembly according to claim 1, characterized in that: A hydrolysis membrane (400) is provided on the outer side of the spirally wound adsorption sponge (200), the top end of the hydrolysis membrane (400) is sealed, the bottom end of the hydrolysis membrane (400) has an opening, the bottom end of the hydrolysis membrane (400) is sealed by a throat hoop (500), and the throat hoop (500) is provided on the outer ring of the hydrolysis membrane (400).

7. A gastrointestinal anastomotic fistula recovery and blocking assembly according to claim 6, characterized in that: The outer ring fixed sleeve of the drainage tube (100) is provided with a sealing sleeve (600), and the material of the sealing sleeve (600) is a hard material. The bottom end of the hydrolysis membrane (400) covers the outer ring of the sealing sleeve (600).

8. The gastrointestinal anastomotic fistula recovery and blocking assembly according to claim 7, characterized in that: The negative pressure drainage part (300) comprises a collecting bottle (310), a negative pressure pump (320), a one-way valve (330), a connecting pipe (340), a guide pipe (350), an adapter (360) and a flow-stop clamp (370). The negative pressure pump (320) and the one-way valve (330) are both fixedly mounted on the collecting bottle (310). One end of the connecting pipe (340) is connected to the liquid inlet of the one-way valve (330). The other end of the connecting pipe (340) is communicated with the drainage pipe (100) via the adapter (360). One end of the guide pipe (350) is connected to the liquid outlet of the one-way valve (330). The other end of the guide pipe (350) extends into the collecting bottle (310). The flow-stop clamp (370) is sleeved on the connecting pipe (340).

9. The gastrointestinal anastomotic fistula restoration and sealing assembly according to claim 8, characterized in that: The bottom of the drainage tube (100) is connected to a branch tube (120), and the branch tube (120) is located on the side of the sealing sleeve (600) away from the adsorption sponge (200). The connecting piece is a hollow structure, and the connecting piece includes a mounting section (361) and a plug-in section (362). The mounting section (361) is fixedly sleeved on the inner ring of the connecting tube (340), and the plug-in section (362) is plugged into the branch tube (120). The outer diameter of the plug-in section (362) is slightly larger than the inner diameter of the branch tube (120), and the end of the plug-in section (362) away from the mounting section (361) is provided with a chamfer.

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