Anastomotic fistula drainage device

Abstract

The utility model relates to the technical field of medical instruments, in particular to an anastomotic fistula drainage device. The anastomotic fistula drainage device comprises an air bag body, the air bag body has a first state and a second state, when the air bag body is in the first state, the air bag body can be fixedly connected with the esophagus, and when the air bag body is in the second state, the air bag body can be separated from and detached from the esophagus; the air bag further comprises an inflation pipe assembly which is installed on the air bag body, and the air bag body is switched between a first state and a second state through the inflation pipe assembly. The esophagus drainage device further comprises a drainage tube assembly, the drainage tube assembly is installed on the air bag body, and the drainage tube assembly can be fixed to the esophagus through the air bag body in the first state. Or the airbag body in the second state is separated from the esophagus. The technical problem of how to relatively fix the drainage tube assembly and the esophagus in the prior art is solved, and meanwhile the drainage tube assembly can be safely pulled out of the esophagus.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, especially a kind of anastomotic stoma drainage device. BACKGROUND

[0002] Esophageal anastomotic fistula is a common complication after esophageal cancer surgery, with an incidence of about 10%. Once anastomotic fistula occurs, the bacteria-containing liquid in the digestive tract will flow out of the sinus, leading to severe chest infection. The gastric acid and digestive enzymes contained in the gastric juice can corrode the surrounding structures, causing infection and even bleeding, which is often the cause of patient death. Currently, the treatment methods for anastomotic fistula are gradually increasing. Drainage method is less painful, less traumatic, and more acceptable to patients, which is an important measure in clinical work.

[0003] Patent document CN201620754677.9 discloses a flushing and drainage device for esophageal anastomotic fistula after esophageal cancer surgery. In the prior art disclosed in patent document CN201620754677.9, the double-layer tube is considered as a drainage tube assembly for drainage. In the prior art, one end of the drainage tube assembly is inserted into the patient's body and is connected to the anastomotic stoma, thereby guiding the bacteria-containing liquid from the anastomotic stoma out of the patient's body. However, during the drainage process at the drainage port in the prior art, due to the lack of a fixing device, the drainage port cannot be fixed relative to the esophagus. This leads to the fact that if the patient's body position changes, for example, the patient changes the lying position, the position of the drainage tube assembly relative to the esophagus will shift. The end of the drainage tube assembly inserted into the patient's body can easily change from the state of being connected to the anastomotic stoma to the state of being separated from the anastomotic stoma, or even to the state of having a large distance from the anastomotic stoma, thereby preventing the bacteria-containing liquid from the anastomotic stoma from flowing out of the patient's body through the drainage tube assembly.

[0004] During the recovery period after surgery, the patient's body position will inevitably change. It can be said that the shift in the position of the drainage tube assembly relative to the esophagus using the drainage structure in the prior art is inevitable. Once the position of the drainage tube assembly relative to the esophagus shifts, it is necessary to adjust the position of the drainage tube assembly or to reinsert the tube into the patient, which undoubtedly increases the postoperative pain of the patient.

[0005] Therefore, the technical problem existing in the prior art is how to relatively fix the drainage tube assembly to the esophagus. UTILITY MODEL CONTENT

[0006] In view of the technical problem of how to relatively fix the drainage tube assembly to the esophagus in the prior art, the utility model provides an anastomotic stoma drainage device.

[0007] The utility model is implemented by the following technical solutions:

[0008] An anastomotic stoma fistula drainage device comprises a balloon body; the balloon body has a first state and a second state; when the balloon body is in the first state, the balloon body can be fixedly connected with the esophagus; when the balloon body is in the second state, the balloon body can be separated from the esophagus.

[0009] Further comprising a tube assembly, the tube assembly is installed on the balloon body, and the balloon body is switched between the first state and the second state through the tube assembly.

[0010] Further comprising a drainage tube assembly, the drainage tube assembly is installed on the balloon body, and the drainage tube assembly can be fixed with the esophagus through the balloon body in the first state or separated from the esophagus through the balloon body in the second state.

[0011] Further, the balloon body comprises a first balloon and a second balloon arranged in mirror symmetry, a first connecting balloon is arranged on the side of the first balloon facing the second balloon, and the balloon cavity of the first connecting balloon is communicated with the balloon cavity of the first connecting balloon; a second connecting balloon is arranged on the side of the second balloon facing the first balloon, and the balloon cavity of the second connecting balloon is communicated with the balloon cavity of the second connecting balloon.

[0012] When the balloon body is in the first state, the first balloon and the second balloon can be clamped and fixed through the first connecting balloon and the second connecting balloon; when the balloon body is in the second state, the first connecting balloon and the second connecting balloon are in clearance fit, and the first balloon and the second balloon can be separated from each other.

[0013] The first balloon has a first limiting surface, and the second balloon has a second limiting surface; when the first balloon and the second balloon are mutually buckled, the first limiting surface and the second limiting surface jointly limit an accommodation channel for being provided with the esophagus;

[0014] Along the extension direction of the accommodation channel, the accommodation channel is divided into a first section and a second section, the minimum radial cross-sectional profile diameter of the first section is configured as a first preset diameter, and the minimum radial cross-sectional profile diameter of the second section is configured as a second preset diameter, and the first preset diameter is smaller than the second preset diameter.

[0015] Further, a first antibacterial coating is arranged on the first limiting surface; and a second antibacterial coating is arranged on the second limiting surface.

[0016] Further, the first connecting balloon is in a ladder-shaped protruding structure, and the second connecting balloon is in a ladder-shaped groove structure; or, the first connecting balloon is in a ladder-shaped groove structure, and the second connecting balloon is in a ladder-shaped protruding structure.

[0017] Further, a first hole is arranged on the outer surface of the side of the first balloon away from the second balloon, and a second hole is arranged on the part of the first limiting surface limited by the second section.

[0018] The drainage tube assembly comprises a first drainage tube, one end of the first drainage tube is limited outside the first air bag, the other end of the first drainage tube passes through the first hole and is connected with the hole wall of the second hole in an interference fit.

[0019] Further, a third hole is arranged on the outer surface of the side of the second air bag away from the first air bag, and a fourth hole is arranged on the second limiting surface of the part limited by the second segment;

[0020] The drainage tube assembly further comprises a second drainage tube, one end of the second drainage tube is limited outside the second air bag, and the other end of the second drainage tube passes through the third hole and the fourth hole and is arranged in the containing channel.

[0021] Further, the end of the first drainage tube connected with the hole wall of the second hole and the end of the second drainage tube arranged in the containing channel are spaced apart along the extension direction of the containing channel.

[0022] Further, the first drainage tube is provided with a first through hole and a second through hole, wherein the first through hole is located outside the first air bag, and the second through hole is located in the cavity of the first air bag.

[0023] The inflation tube assembly comprises a first inflation tube, two ends of the first inflation tube are a first end and a second end, respectively, wherein the first end is limited outside the first air bag and the first drainage tube, and the second end passes through the first through hole, the lumen of the part of the first drainage tube between the first through hole and the second through hole, the second through hole and extends into the cavity of the first air bag.

[0024] Further, the first end of the first inflation tube is detachably provided with a first spherical air bag.

[0025] Further, the containing channel can be a conical channel, a shuttle-shaped channel or a cylindrical channel.

[0026] Compared with the prior art, the advantages of the utility model lie in:

[0027] Firstly, as known from the background art, the double-layer tube is regarded as a drainage tube assembly for drainage. In the prior art, one end of the drainage tube assembly is inserted into the patient's body and is connected to the anastomotic port, thereby guiding the bacteria-containing liquid of the anastomotic port fistula out. However, in the process of drainage of the drainage port in the prior art, due to the lack of a fixing device, the drainage port cannot be fixed relative to the esophagus, which leads to the fact that if the patient's body position moves, for example, the patient changes the lying position, the position of the drainage tube assembly relative to the esophagus will be offset. The end of the drainage tube assembly inserted into the patient's body is easy to change from the state of being connected to the anastomotic port to the state of being separated from the anastomotic port, or even to the state of having a large distance from the anastomotic port, thereby failing to guide the bacteria-containing liquid at the anastomotic port fistula out of the patient's body. During the recovery time after the operation, the patient's body position will inevitably change. It can be said that the position of the drainage tube assembly relative to the esophagus will be offset using the drainage structure in the prior art. Once the position of the drainage tube assembly relative to the esophagus is offset, it is necessary to adjust the position of the drainage tube assembly or to re-insert the tube into the patient, which undoubtedly increases the postoperative pain of the patient. Therefore, the technical problem existing in the prior art is how to fix the drainage tube assembly relative to the esophagus.

[0028] In the utility model, the air bag body has a first state. When the air bag body is in the first state, the air bag body can be fixedly connected with the esophagus. The drainage tube assembly is installed on the air bag body. The drainage tube assembly can be fixed with the esophagus through the air bag body in the first state. That is, the air bag body in the first state can be regarded as a fixing device for fixing the drainage tube assembly with the esophagus. In addition, the air bag body also has a second state. When the air bag body is in the second state, the air bag body can be separated and detached from the esophagus, thereby enabling the air bag body and the drainage tube assembly to be detached from the human body together. In the utility model, the drainage tube assembly is connected with the air bag body. The air bag body in the first state can be connected with the esophagus, thereby enabling the drainage tube assembly to be fixed with the esophagus of the patient through the air bag body in the first state. Therefore, the utility model solves the technical problem of how to fix the drainage tube assembly relative to the esophagus in the prior art.

[0029] Secondly, in the prior art, there is a lack of a collection device for the bacteria-containing liquid at the anastomotic port fistula. The bacteria-containing liquid cannot be confined to a certain area through a single drainage tube assembly, which is easy to cause the spread of infection. At the same time, this makes the bacteria-containing liquid at the anastomotic port fistula flow into the patient's chest cavity in a state of untimely flow guidance, causing the patient to be infected, or even to die.

[0030] In the first state, the first air bag and the second air bag are respectively inflated and fixed with the esophagus, wherein the first section of the containing channel is in interference fit with one section of the esophagus, and the bottom of the containing channel is blocked by the upper surface of the stomach of the patient, so that the upper surface of the stomach, the first section, the section of the containing channel between the upper surface of the stomach and the first section, and the outer surface of the part of the esophagus in the containing channel jointly limit the formation of a sealed cavity, if the bacteria-containing liquid appears at the anastomotic stoma, the bacteria-containing liquid is limited in the sealed cavity, the sealed cavity can be regarded as a collecting device for the bacteria-containing liquid at the anastomotic stoma, and the technical effect of limiting the bacteria-containing liquid in a certain area, i.e. the sealed cavity, is achieved; further, since the bacteria-containing liquid is limited in the sealed cavity in the utility model, the bacteria-containing liquid is stored in the sealed cavity without flowing out under the condition that the flow is not timely, and the utility model avoids the occurrence of the situation that the bacteria-containing liquid at the anastomotic stoma flows into the chest cavity of the patient under the condition that the flow is not timely, and further avoids the occurrence of the situation that the patient is infected and even dies.

[0031] Thirdly, in the utility model, the first inflating pipe and the first drainage pipe are connected with the first air bag; the first drainage pipe is connected with the first air bag, the first drainage pipe is connected with the first air bag through the first hole and the second hole arranged on the first air bag, and the first inflating pipe is connected with the first air bag without needing to punch holes on the first air bag, but the first end of the first inflating pipe is limited outside the first air bag and the first drainage pipe, one part of the first inflating pipe is located inside the lumen of the first inflating pipe, and the other end of the first inflating pipe communicates with the cavity of the first air bag; therefore, in the utility model, the first inflating pipe is connected with the first air bag without needing to punch holes on the first air bag, but is arranged by punching holes on the first drainage pipe; compared with the first inflating pipe and the first drainage pipe being connected with the first air bag, the holes matched with the first inflating pipe and the holes matched with the first drainage pipe need to be arranged on the first air bag, and the technical scheme has the first inflating pipe and the first drainage pipe being connected with the first air bag, thereby reducing the number of holes punched on the first air bag, and greatly reducing the risk of air leakage of the first air bag.

[0032] Fourthly, the one end of the first drainage pipe connected with the hole wall of the second hole and the one end of the second drainage pipe arranged in the containing channel exist a spacing along the extension direction of the containing channel; the anastomotic port is located in the spacing, so as to avoid the one end of the first drainage pipe connected with the hole wall of the second hole and the one end of the second drainage pipe arranged in the containing channel scratching the anastomotic port and causing discomfort of the patient.

[0033] Fifth, the first connecting air bag is a ladder-shaped protruding structure, and the second connecting air bag is a ladder-shaped groove structure, in the direction from the first connecting air bag to the second connecting air bag, the first connecting air bag in the ladder-shaped protruding structure is radially divergent, and the second connecting air bag in the ladder-shaped groove structure is in shape and size corresponding to the first connecting air bag; this leads to that after the first air bag and the second air bag are buckled with each other through the first connecting air bag and the second connecting air bag, the first connecting air bag in the ladder-shaped protruding structure and the second connecting air bag in the ladder-shaped groove structure are difficult to separate along the radial direction of the esophagus; and further, the fixed connection between the air bag body and the esophagus is more reliable.

[0034] Sixth, in the process of patient rehabilitation treatment, the outer wall of the esophagus is easy to contact the first limiting surface and the second limiting surface; in the utility model, the first limiting surface is provided with a first antibacterial coating, and the second limiting surface is provided with a second antibacterial coating, so as to avoid the occurrence of anastomotic port infection in the process that the first limiting surface and the second limiting surface contact the anastomotic port respectively.

[0035] Seventh, in the utility model, the air bag body is connected with the drainage tube assembly, when the drainage tube assembly needs to be fixed with the patient, only needs to inflate the first air bag and the second air bag respectively, and then buckle the first air bag and the second air bag with each other; when the drainage tube assembly needs to be removed from the patient, only needs to deflate the first air bag and the second air bag, so that the synchronous removal of the air bag body and the drainage tube assembly can be realized; this greatly simplifies the operation steps of medical staff, and makes the installation and removal of the drainage tube assembly very simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a whole structure schematic view of the anastomotic port fistula drainage device of the utility model;

[0037] Figure 2 It is a top view of the anastomotic port fistula drainage device of the utility model;

[0038] Figure 3 It is a sectional structure schematic view of Figure 1

[0039] Figure 4 It is a structure enlarged schematic view of the A area in Figure 3

[0040] Figure 5 It is a structure schematic view of the first drainage tube of the utility model;

[0041] Figure 6 It is a schematic view of the connection of the first drainage tube and the first inflation tube;

[0042] Figure 7 It is an application schematic view of the anastomotic port fistula drainage device of the utility model. ​​

[0043] The following are labeled in the figure: airbag body (1), drainage tube assembly (2), first airbag (3), second airbag (4), first connecting airbag (5), second connecting airbag (6), first limiting surface (7), second limiting surface (8), receiving channel (9), first segment (10), second segment (11), first antibacterial coating (12), second antibacterial coating (13), first hole (14), second hole (15), first drainage tube (16), third hole (17), fourth hole (18), second drainage tube (19), first through hole (20), second through hole (21), first air inflator tube (22), first spherical airbag (23). Detailed Implementation

[0044] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0045] Example 1

[0046] like Figures 1-3 As shown, this embodiment proposes an anastomotic fistula drainage device, including a balloon body 1; the balloon body 1 has a first state and a second state. When the balloon body 1 is in the first state, the balloon body 1 can be fixedly connected to the esophagus. When the balloon body 1 is in the second state, the balloon body 1 can be separated and disassembled from the esophagus; it also includes an air inflator assembly, which is installed on the balloon body 1, and the balloon body 1 can be switched between the first state and the second state through the air inflator assembly; it also includes a drainage tube assembly 2, which is installed on the balloon body 1. The drainage tube assembly 2 can be fixed to the esophagus through the balloon body 1 in the first state; or it can be separated from the esophagus through the balloon body 1 in the second state.

[0047] All the chambers of the airbag body 1 are filled with gas, the airbag body 1 is inflated, and the airbag body 1 is in the first state; there is no gas or insufficient gas in the chambers of the airbag body 1 to inflate the airbag body 1, and the airbag body 1 is in a deflated state, and the airbag body 1 is in the second state; the airbag body 1 is inflated by the inflator assembly or the gas in the airbag body 1 is extracted, and the airbag body 1 is switched between the first state and the second state.

[0048] As shown in Figures 1-3 , specifically, the airbag body 1 includes a first airbag 3 and a second airbag 4 arranged in mirror symmetry, a first connecting airbag 5 is arranged on the side of the first airbag 3 facing the second airbag 4, and the chamber of the first airbag 3 communicates with the chamber of the first connecting airbag 5; a second connecting airbag 6 is arranged on the side of the second airbag 4 facing the first airbag 3, and the chamber of the second airbag 4 communicates with the chamber of the second connecting airbag 6; the airbag body 1 is in the first state, the first airbag 3 and the second airbag 4 can be clamped and fixed through the first connecting airbag 5 and the second connecting airbag 6; the airbag body 1 is in the second state, the first connecting airbag 5 and the second connecting airbag 6 are in clearance fit, and the first airbag 3 and the second airbag 4 can be separated from each other; the first airbag 3 has a first limiting surface 7, and the second airbag 4 has a second limiting surface 8, when the first airbag 3 and the second airbag 4 are clamped together, the first limiting surface 7 and the second limiting surface 8 jointly limit the formation of a receiving channel 9 for being arranged in the esophagus; along the extension direction of the receiving channel 9, the receiving channel 9 is divided into a first section 10 and a second section 11, the minimum radial cross-sectional profile diameter of the first section 10 is configured as a first preset diameter, and the minimum radial cross-sectional profile diameter of the second section 11 is configured as a second preset diameter, the first preset diameter is smaller than the second preset diameter.

[0049] More specifically, the specific structure of the first connecting airbag 5 and the second connecting airbag 6 is that the first connecting airbag 5 is a ladder-shaped protruding structure, and the second connecting airbag 6 is a ladder-shaped groove structure; or, the first connecting airbag 5 is a ladder-shaped groove structure, and the second connecting airbag 6 is a ladder-shaped protruding structure. In this embodiment, the first connecting airbag 5 is a ladder-shaped protruding structure, and the second connecting airbag 6 is a ladder-shaped groove structure. In the direction from the first connecting airbag 5 to the second connecting airbag 6, the first connecting airbag 5 in the ladder-shaped protruding structure is in a radial diverging shape, and the shape and size of the second connecting airbag 6 in the ladder-shaped groove structure correspond to each other with the shape and size of the first connecting airbag 5.

[0050] The receiving channel 9 can be a conical channel, a spindle-shaped channel, or a cylindrical channel; most preferably, the receiving channel 9 is a spindle-shaped channel, and secondly preferably, the receiving channel 9 is a conical channel; in this embodiment, the receiving channel 9 is a spindle-shaped channel. Correspondingly, the first limiting surface 7 and the second limiting surface 8 are both arc-shaped curved surfaces, and after they interlock, they form the receiving channel 9 configured as a spindle-shaped channel. Furthermore, the length of the receiving channel 9 can be designed to different specifications to accommodate patients of different heights.

[0051] like Figure 3 As shown, preferably, a first antibacterial coating 12 is provided on the first limiting surface 7; a second antibacterial coating 13 is provided on the second limiting surface 8. This arrangement can prevent the first limiting surface 7 and the second limiting surface 8 from contacting the anastomosis, thereby preventing anastomosis infection. The first antibacterial coating 12 and the second antibacterial coating 13 can be coating structures composed of antibiotics, antibacterial agents, silver ions, and other materials. Antibacterial coatings are widely used in the medical field, and existing technologies can be found, so they will not be described in detail here.

[0052] In this embodiment, as Figure 3 As shown, the first segment 10 is located above the second segment 11; the first preset diameter can be configured according to the specific usage, and the configuration of the first preset diameter should be such that when the airbag body 1 is in the first state, the inner wall of the first segment 10 that accommodates the channel 9 can be interference-fitted with a part of the outer wall of the esophagus; the second preset diameter can be configured according to the specific usage, and no specific limitation is made here; for example, in this embodiment, the radial profile diameter of the upper port of the first segment 10 is the minimum radial cross-sectional profile diameter of the first segment 10, and the radial profile diameter of the lower port of the second segment 11 is the minimum radial cross-sectional profile diameter of the second segment 11; in this embodiment, the first preset diameter is 2cm to 5cm, and the second preset diameter is 5cm to 10cm.

[0053] like Figures 1-4 As shown, the connection structure between the airbag body 1 and the drainage tube assembly 2 is as follows: a first hole 14 is provided on the outer surface of the first airbag 3 on the side opposite to the second airbag 4, and a second hole 15 is provided on the first limiting surface 7 of the part limited by the second segment 11; the drainage tube assembly 2 includes a first drainage tube 16, one end of the first drainage tube 16 is limited outside the first airbag 3, and the other end passes through the first hole 14 and is connected to the hole wall of the second hole 15 by interference fit.

[0054] The third hole 17 is arranged on the outer surface of the second balloon 4 away from the first balloon 3, and the fourth hole 18 is arranged on the second limiting surface 8 limited by the second section 11. The drainage tube assembly 2 further comprises a second drainage tube 19, one end of the second drainage tube 19 is limited outside the second balloon 4, the other end respectively passes through the third hole 17 and the fourth hole 18, and is arranged in the containing channel 9. In the embodiment, preferably, the second drainage tube 19 is arranged in the containing channel 9, and the length of the second drainage tube 19 is about 20 cm, which is convenient for cutting during the operation and ensures that the second drainage tube 19 is located Figure 7 below the middle anastomotic stoma.

[0055] As shown in Figures 3-4 , further, the one end of the first drainage tube 16 connected with the hole wall of the second hole 15 and the one end of the second drainage tube 19 arranged in the containing channel 9 are spaced apart along the extension direction of the containing channel 9; the size of the spacing can be configured according to the size of the anastomotic stoma; generally, the anastomotic stoma is located in the spacing, so as to avoid that the one end of the first drainage tube 16 connected with the hole wall of the second hole 15 and the one end of the second drainage tube 19 arranged in the containing channel 9 respectively scratch the anastomotic stoma and cause discomfort to the patient.

[0056] As shown in Figures 5-6 , further, the inflation and deflation of the first balloon 3 are completed through the first inflation tube 22, and the specific structure is as follows: the first drainage tube 16 is provided with a first through hole 20 and a second through hole 21, wherein the first through hole 20 is located outside the first balloon 3, and the second through hole 21 is located in the balloon cavity of the first balloon 3; the inflation tube assembly comprises a first inflation tube 22, and two ends of the first inflation tube 22 are respectively a first end and a second end, wherein the first end is limited outside the first balloon 3 and the first drainage tube 16, and the second end respectively passes through the first through hole 20, the lumen of the part of the first drainage tube 16 between the first through hole 20 and the second through hole 21, the second through hole 21, and extends into the balloon cavity of the first balloon 3.

[0057] In the embodiment, the first end of the first inflation tube 22 is limited outside the first balloon 3 and the first drainage tube 16, and the second end respectively passes through the first through hole 20, the lumen of the part of the first drainage tube 16 between the first through hole 20 and the second through hole 21, and the second through hole 21, and extends into the balloon cavity of the first balloon 3. After the first drainage tube 16 is connected with the first balloon 3, the first inflation tube 22 is connected with the first balloon 3 again, and it is not necessary to punch holes in the first balloon 3 again, but the first inflation tube 22 establishes a connection relationship with the first balloon 3 through the first drainage tube 16, and communicates with the balloon cavity of the first balloon 3, thereby reducing the number of holes punched in the first balloon 3 and reducing the risk of air leakage of the first balloon 3

[0058] Preferably, the outer wall of the first inflator tube 22 is connected with the hole wall of the first through hole 20 and the hole wall of the second through hole 21 in interference fit, or the gap between the outer wall of the first inflator tube 22 and the hole wall of the first through hole 20 is filled with sealing glue, and the gap between the outer wall of the first inflator tube 22 and the hole wall of the second through hole 21 is filled with sealing glue, to ensure air tightness.

[0059] Further, the first end of the first inflator tube 22 is detachably provided with a first spherical air bag 23. When the first spherical air bag 23 is connected with the first end of the first inflator tube 22, the first spherical air bag 23 is squeezed, and then gas is input into the cavity of the first air bag 3 through the first inflator tube 22. When the first spherical air bag 23 is detached from the first end of the first inflator tube 22, the air in the cavity of the first air bag 3 is transported out of the first air bag 3 through the first inflator tube 22, thereby adjusting the air volume in the cavity of the first air bag 3.

[0060] Further, in the embodiment, the inflator tube assembly further includes a second inflator tube, which is similar to the first inflator tube 22 mentioned above in terms of setting mode, connection type, shape structure, and is mirror-symmetrically arranged, and will not be described here. The second inflator tube is located at one end outside the second air bag 4, and is also provided with a second spherical air bag.

[0061] The first spherical air bag 23 and the second spherical air bag have consistent structures, and their structures and principles are prior art and are widely used in the medical field, such as the spherical air bag used in a sphygmomanometer.

[0062] Further, in other optional embodiments, the first spherical air bag 23 can be removed at the first end of the first inflator tube 22, and a pressure gauge can be added to monitor the air pressure in the first air bag 3 in real time.

[0063] Further, in other optional embodiments, a flap type on-off valve can be arranged at the first end of the first inflator tube 22. A syringe without a needle is inserted into the flap type on-off valve to open the flap. The first inflator tube 22 is conducted at this time, and inflation or deflation can be performed. After the syringe is pulled out, the flap is automatically closed, the first inflator tube 22 is cut off, and the gas in the first air bag 3 cannot leak out.

[0064] In combination Figures 1-7 , in use:

[0065] 1) A window is opened on the chest of the patient, and an esophageal cancer resection surgery is performed on the patient, and the anastomotic stoma is sutured. Then, the slightly inflated first air bag 3 and the second air bag 4 are implanted into the human body from the window on the chest of the patient at this time, and the air bag body 1 is in the second state.

[0066] 2), the first air bag 3, the second air bag 4 are arranged at the two sides of the esophagus respectively, then the first air bag 3, the second air bag 4 are buckled to each other, until the first connecting air bag 5 of the ladder-shaped protruding structure is inserted into the second connecting air bag 6 of the ladder-shaped recess structure;Along the extension direction of the containing channel 9, the position of the air bag body 1 is adjusted, so that the bottom of the air bag body 1 abuts on the upper surface of the stomach, and the upper surface of the stomach blocks the bottom opening of the containing channel 9;

[0067] 3), the first spherical air bag 23 is extruded, the first air bag 3 is inflated by the first inflation pipe 22, the second spherical air bag is extruded, and the second air bag 4 is inflated by the second inflation pipe;The first air bag 3 and the second air bag 4 are respectively filled with gas and inflated, until the first connecting air bag 5 and the second connecting air bag 6 form an interference fit, that is, the air bag body 1 is in the first state, and the first section 10 of the containing channel 9 and one section of the esophagus form an interference fit;At this time, the upper surface of the stomach, the first section 10, the section of the containing channel 9 between the upper surface of the stomach and the first section 10, and the outer surface of the part of the esophagus in the containing channel 9 jointly limit the formation of a closed cavity, and the anastomotic stoma is located in the closed cavity, if the anastomotic stoma fistula contains bacteria liquid, the bacteria liquid is limited in the closed cavity;At the same time, the anastomotic stoma is located between the one end of the first drainage tube 16 connected with the hole wall of the second hole 15 and the one end of the second drainage tube 19 arranged in the containing channel 9;

[0068] 4), the patient orally takes methylene blue reagent, and uses a needle tube to aspirate the first drainage tube 16 or the second drainage tube 19 to observe whether the anastomotic stoma fistula occurs;

[0069] 5.1), if the anastomotic stoma fistula occurs, the needle tube is inserted into the one end of the first drainage tube 16 outside the first air bag 3, the bacteria liquid limited in the closed cavity is sucked into the first drainage tube 16 by the needle tube, and then is sucked out by the needle tube, and the same is true for the side of the second drainage tube 19;Or, the bacteria liquid can also be naturally discharged through the first drainage tube 16 and the second drainage tube 19 without using the needle tube to aspirate the bacteria liquid;

[0070] 5.2), if the anastomotic stoma fistula does not occur, the first drainage tube 16 and the second drainage tube 19 can drain the tissue fluid generated in the body of the patient after the operation;

[0071] 5.3), if the anastomotic stoma is infected, physiological saline or antibiotic reagent can also be injected into the anastomotic stoma through the first drainage tube 16 and the second drainage tube 19 for flushing, and the patient can be in a left lateral decubitus position or a right lateral decubitus position;

[0072] 6) After the patient is cured, the gas in the cavity of the first air bag 3 is discharged through the first inflation pipe 22, and the gas in the cavity of the second air bag 4 is discharged through the second inflation pipe, and the first air bag 3 and the second air bag 4 are deflated and shrunk, that is, the air bag body 1 is in the second state, the first connecting air bag 5 and the second connecting air bag 6 are separated, the first air bag 3 and the second air bag 4 are removed along the radial direction of the esophagus, and the drainage tube assembly 2 is taken out from the patient's chest window together.

[0073] The advantages of the embodiment are as follows:

[0074] Firstly, as known from the background art, in the prior art disclosed in the patent document CN201620754677.9, the double-layer tube is regarded as a drainage tube assembly for drainage. In the prior art, one end of the drainage tube assembly is inserted into the patient's body and is connected to the anastomotic stoma, so as to guide the bacteria-containing liquid of the anastomotic stoma out. However, in the process of drainage of the drainage port in the prior art, due to the lack of a fixing device, the drainage port cannot be fixed relative to the esophagus, which leads to the fact that if the patient's body position moves, for example, the patient changes the lying position, the position of the drainage tube assembly relative to the esophagus will be offset, and the end of the drainage tube assembly inserted into the patient's body is easy to change from the state of being connected to the anastomotic stoma to the state of being separated from the anastomotic stoma, or even to the state of having a large distance from the anastomotic stoma, so that the bacteria-containing liquid at the anastomotic stoma cannot flow out of the patient's body through the drainage tube assembly. During the recovery time after the operation, the patient's body position will inevitably change. It can be said that the position offset of the drainage tube assembly relative to the esophagus is inevitable when the drainage structure in the prior art is used. Once the position of the drainage tube assembly relative to the esophagus is offset, it is necessary to adjust the position of the drainage tube assembly or to re-insert the tube into the patient, which undoubtedly increases the postoperative pain of the patient. Therefore, the technical problem existing in the prior art is how to fix the drainage tube assembly relative to the esophagus.

[0075] In the embodiment, the airbag body 1 has a first state, when the airbag body 1 is in the first state, the airbag body 1 can be fixedly connected with the esophagus; and the drainage tube assembly 2 is installed on the airbag body 1, and the drainage tube assembly 2 can be fixed with the esophagus through the airbag body 1 in the first state, that is, the airbag body 1 in the first state can be regarded as a fixing device for fixing the drainage tube assembly 2 with the esophagus; in addition, the airbag body 1 also has a second state, when the airbag body 1 is in the second state, the airbag body 1 can be separated and detached from the esophagus, so that the airbag body 1 is detached from the human body together with the drainage tube assembly 2. In the embodiment, the drainage tube assembly 2 is connected with the airbag body 1, and the airbag body 1 in the first state can be connected with the esophagus, so that the drainage tube assembly 2 is fixed with the esophagus of the patient through the airbag body 1 in the first state; therefore, the embodiment solves the technical problem of how to fix the drainage tube assembly with the esophagus in the prior art.

[0076] Secondly, in the prior art, there is a lack of a collection device for bacteria-containing liquid at the anastomotic stoma, and a single drainage tube assembly cannot confine the bacteria-containing liquid to a certain area, which easily leads to the spread of infection; at the same time, this makes the bacteria-containing liquid at the anastomotic stoma easily flow into the chest cavity of the patient under the condition that drainage is not timely, causing infection of the patient, and even death.

[0077] In the embodiment, in the first state, the first airbag 3 and the second airbag 4 are respectively inflated and fixed with the esophagus, wherein the first section 10 of the containing channel 9 is in interference fit with one section of the esophagus, and the bottom of the containing channel is blocked by the upper surface of the stomach of the patient, so that the upper surface of the stomach, the first section 10, and a section of the containing channel 9 located between the upper surface of the stomach and the first section 10 jointly limit a closed cavity, if bacteria-containing liquid appears at the anastomotic stoma, the bacteria-containing liquid is confined in the closed cavity, which can be regarded as a collection device for bacteria-containing liquid at the anastomotic stoma, thereby achieving the technical effect of confining the bacteria-containing liquid to a certain area, that is, the closed cavity; further, since the bacteria-containing liquid is confined in a closed cavity in the embodiment, under the condition that drainage is not timely, the bacteria-containing liquid is stored in the closed cavity and cannot flow out, thereby the embodiment avoids the bacteria-containing liquid at the anastomotic stoma flowing into the chest cavity of the patient under the condition that drainage is not timely, and further avoids the occurrence of infection of the patient, and even death.

[0078] Third, in the embodiment, the first inflation tube 22 and the first drainage tube 16 are connected with the first air bag 3; the first drainage tube 16 is connected with the first air bag 3, the first drainage tube 16 is connected with the first air bag 3 through the first hole 14 and the second hole 15 arranged on the first air bag 3, and the first inflation tube 22 is connected with the first air bag 3 without the need to punch holes on the first air bag 3. Instead, the first end of the first inflation tube 22 is limited outside the first air bag 3 and the first drainage tube 16, a part of the first inflation tube 22 is located inside the lumen of the first inflation tube 22, and the other end of the first inflation tube 22 communicates with the cavity of the first air bag 3. Therefore, in the embodiment, the first inflation tube 22 is connected with the first air bag 3 without the need to punch holes on the first air bag 3, but is arranged by punching holes on the first drainage tube 16. Compared with the technical solution that the first inflation tube 22 and the first drainage tube 16 are connected with the first air bag 3, and the first air bag 3 needs to be provided with holes matched with the first inflation tube 22 and the first drainage tube 16 respectively, the first inflation tube 22 and the first drainage tube 16 are connected with the first air bag 3 in the embodiment, which reduces the number of holes punched on the first air bag 3, and thus greatly reduces the risk of air leakage of the first air bag 3.

[0079] Fourth, the end of the first drainage tube 16 connected with the hole wall of the second hole 15 and the end of the second drainage tube 19 arranged in the containing channel 9 have a spacing along the extension direction of the containing channel 9. The anastomotic stoma is located in the spacing to avoid the end of the first drainage tube 16 connected with the hole wall of the second hole 15 and the end of the second drainage tube 19 arranged in the containing channel 9 scratching the anastomotic stoma, causing discomfort to the patient.

[0080] Fifth, the first connecting air bag 5 is in a ladder-shaped protruding structure, and the second connecting air bag 6 is in a ladder-shaped recess structure. In the direction from the first connecting air bag 5 to the second connecting air bag 6, the first connecting air bag 5 in the ladder-shaped protruding structure is in a radial diverging shape, and the second connecting air bag 6 in the ladder-shaped recess structure is in a shape and size corresponding to the shape and size of the first connecting air bag 5. This causes the first connecting air bag 5 in the ladder-shaped protruding structure and the second connecting air bag 6 in the ladder-shaped recess structure to be difficult to separate along the radial direction of the esophagus after the first air bag 3 and the second air bag 4 are buckled with each other through the first connecting air bag 5 and the second connecting air bag 6. Thus, the fixed connection between the air bag body 1 and the esophagus is more reliable.

[0081] Sixth, during the rehabilitation treatment of the patient, the outer wall of the esophagus is easy to contact with the first limiting surface 7 and the second limiting surface 8. In the embodiment, the first limiting surface 7 is provided with the first antibacterial coating 12, and the second limiting surface 8 is provided with the second antibacterial coating 13 to avoid the infection of the anastomotic stoma caused by the contact of the first limiting surface 7 and the second limiting surface 8 with the anastomotic stoma respectively.

[0082] Seventh, in this embodiment, the air bag body 1 is connected with the drainage tube assembly 2, when the drainage tube assembly 2 needs to be fixed with the patient, only need to charge air into the first air bag 3 and the second air bag 4 respectively, and then the first air bag 3 and the second air bag 4 are buckled with each other; when the drainage tube assembly 2 needs to be removed from the patient, only need to deflate the first air bag 3 and the second air bag 4, so that the air bag body 1 and the drainage tube assembly 2 can be removed synchronously; this greatly simplifies the operation steps of the medical staff, and makes the installation and removal of the drainage tube assembly 2 very simple and convenient.

[0083] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An anastomotic leak drainage device, characterized by, The air bag body (1) has a first state and a second state, when the air bag body (1) is in the first state, the air bag body (1) can be fixedly connected with the esophagus, when the air bag body (1) is in the second state, the air bag body (1) can be separated from the esophagus. The air bag body (1) is switched between the first state and the second state through the inflation pipe assembly. The drainage tube assembly (2) is installed on the air bag body (1), and the drainage tube assembly (2) can be fixed with the esophagus through the air bag body (1) in the first state, or separated from the esophagus through the air bag body (1) in the second state. The air bag body (1) includes a first air bag (3) and a second air bag (4) arranged in mirror image, a first connecting air bag (5) is arranged on the side of the first air bag (3) facing the second air bag (4), and the cavity of the first air bag (3) is communicated with the cavity of the first connecting air bag (5); a second connecting air bag (6) is arranged on the side of the second air bag (4) facing the first air bag (3), and the cavity of the second air bag (4) is communicated with the cavity of the second connecting air bag (6). When the air bag body (1) is in the first state, the first air bag (3) and the second air bag (4) can be clamped and fixed through the first connecting air bag (5) and the second connecting air bag (6); when the air bag body (1) is in the second state, the first connecting air bag (5) and the second connecting air bag (6) are clearance fit, and the first air bag (3) and the second air bag (4) can be separated from each other. The first air bag (3) has a first limiting surface (7), and the second air bag (4) has a second limiting surface (8), when the first air bag (3) and the second air bag (4) are mutually buckled, the first limiting surface (7) and the second limiting surface (8) jointly limit an accommodation channel (9) for being provided with the esophagus.

2. The anastomotic fistula drainage device according to claim 1, characterized in that Along the extension direction of the accommodation channel (9), the accommodation channel (9) is divided into a first section (10) and a second section (11), the minimum radial cross-sectional profile diameter of the first section (10) is configured as a first preset diameter, and the minimum radial cross-sectional profile diameter of the second section (11) is configured as a second preset diameter, the first preset diameter being smaller than the second preset diameter.

3. The anastomotic fistula drainage device according to claim 2, characterized in that The first limiting surface (7) is provided with a first antibacterial coating (12), and the second limiting surface (8) is provided with a second antibacterial coating (13).

4. The fistula drainage device according to claim 2, wherein The first connecting air bag (5) is a ladder-shaped protruding structure, and the second connecting air bag (6) is a ladder-shaped groove structure; or, the first connecting air bag (5) is a ladder-shaped groove structure, and the second connecting air bag (6) is a ladder-shaped protruding structure.

5. The anastomotic fistula drainage device according to claim 3 or 4, characterized in that The first air bag (3) is provided with a first hole (14) on the outer surface of the side away from the second air bag (4), and the first limiting surface (7) limited by the second section (11) is provided with a second hole (15); The drainage tube assembly (2) includes a first drainage tube (16), one end of the first drainage tube (16) is limited outside the first air bag (3), the other end passes through the first hole (14) and is connected with the hole wall of the second hole (15) in interference fit.

6. The anastomotic fistula drainage device according to claim 5, characterized in that The second air bag (4) is provided with a third hole (17) on the outer surface of the side away from the first air bag (3), and a fourth hole (18) is provided on the part of the second limiting surface (8) limited by the second section (11); The drainage tube assembly (2) further comprises a second drainage tube (19), one end of the second drainage tube (19) is limited outside the second air bag (4), the other end respectively passes through the third hole (17) and the fourth hole (18), and is arranged in the containing channel (9).

7. The anastomotic fistula drainage device according to claim 6, characterized in that The first drainage tube (16) and the end of the second drainage tube (19) arranged in the containing channel (9) are spaced apart along the extension direction of the containing channel (9).

8. The anastomotic fistula drainage device according to claim 5, characterized in that The tube wall of the first drainage tube (16) is provided with a first through hole (20) and a second through hole (21), wherein the first through hole (20) is located outside the first air bag (3), and the second through hole (21) is located in the cavity of the first air bag (3); The inflation tube assembly comprises a first inflation tube (22), and two ends of the first inflation tube (22) are a first end and a second end, respectively, wherein the first end is limited outside the first air bag (3) and the first drainage tube (16), the second end respectively passes through the first through hole (20), the tube cavity of the part of the first drainage tube (16) between the first through hole (20) and the second through hole (21), the second through hole (21), and extends into the cavity of the first air bag (3).

9. The anastomotic fistula drainage device according to claim 5, characterized in that The first end of the first inflation tube (22) is detachably provided with a first spherical air bag (23).

10. The fistula drainage device according to claim 2, wherein The containing channel (9) can be a conical channel, a shuttle-shaped channel, or a cylindrical channel.

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