A device for fecal diversion after rectal cancer surgery

Abstract

The application discloses a postoperative fecal diversion device for rectal cancer, and belongs to the technical field of medical devices, which comprises a suture seat, a drainage tube fixedly arranged on the suture seat, a sealing element fixedly arranged at one end of the drainage tube, wherein the sealing element is of a double-layer structure, an air pipe is arranged on the sealing element, the air pipe is used for feeding gas into the sealing element, the sealing element is inflated by the gas, a quick connector is fixedly connected to a free end of the air pipe after penetrating through the suture seat, a one-way valve is fixedly arranged in the quick connector, a pressure regulator is further communicatively arranged on the air pipe, and the pressure regulator is used for automatically adjusting the gas pressure in the sealing element. The sealing element is inflated to be funnel-shaped, thereby blocking and sealing the intestinal tract, preventing intestinal liquid and excrement from causing wound infection, and adjusting the gas pressure in the sealing element according to the peristalsis of the intestinal tract through the pressure regulator, so that the sealing effect of the sealing element on the intestinal tract is ensured, and the damage to the intestinal mucosa is avoided. The overall structure is simple, and the device is convenient to use.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, in particular to a fecal diversion device for postoperative rectal cancer. BACKGROUND

[0002] Rectal cancer is the most common malignant tumor occurring in the intestinal tract, spreading along the longitudinal direction of the intestinal canal or infiltrating the deep layer of the intestinal wall. In addition to metastasis through lymphatic vessels, blood flow and local invasion, it can also implant in the abdominal cavity or spread along the suture line and incision surface. Chronic enteritis patients, intestinal polyp patients, obese men and others are susceptible groups.

[0003] Anastomotic leakage is currently one of the most serious complications after anterior resection of rectal cancer, with an incidence of about 10%, and can lead to death in severe cases. After surgery on patients with rectal cancer, the wound needs to be protected to avoid feces contacting the anastomotic stoma as much as possible, especially in the case of low rectal postoperative protection. The current protection measure is to use a protective plate to adhere to the inner wall of the intestinal tract, so that the wound is shielded by the protective plate. However, this protection method requires the protective plate to adhere to the wound, and during the wound healing process, adhesion to the protective plate will occur, causing wound trauma when the protective plate is removed. In addition, since the wound is close to the anus, the patient also needs to install a defecation device, making it difficult to fix the protective plate, which can cause displacement and cannot effectively protect the wound.

[0004] Therefore, we need to design a fecal diversion device for postoperative rectal cancer to solve these problems. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a fecal diversion device for postoperative rectal cancer to solve the protection work after low intestinal cancer surgery.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A fecal diversion device for postoperative rectal cancer, comprising a suture seat, a drainage tube is fixedly arranged on the suture seat, one end of the drainage tube is fixedly provided with a sealing element, the sealing element is a double-layer structure, an air pipe is arranged on the sealing element, the air pipe is used for introducing gas into the sealing element, and the sealing element will expand when filled with gas, a free end of the air pipe is fixedly connected with a quick connector after penetrating through the suture seat, a one-way valve is fixedly arranged in the quick connector, and a pressure regulator is also communicatively arranged on the air pipe, the pressure regulator is used for automatically adjusting the gas pressure in the sealing element.

[0008] Preferably, the pressure regulator comprises a shell, an observation window is arranged on the side wall of the shell, a piston and a push plate are slidably arranged in the shell, a spring is arranged between the piston and the push plate, a screw rod is rotatably arranged on the push plate, an adjusting knob is arranged on the free end of the screw rod, a connecting pipe is in communication with the side wall of the shell on the side of the piston, and the free end of the connecting pipe is in communication with the gas pipe.

[0009] In this way, the pressure of the gas in the sealing element can be automatically adjusted to prevent the leakage of intestinal fluid from the intestinal tract due to the large intestinal peristalsis, and the damage to the wound or the intestinal mucosa.

[0010] Preferably, the screw rod and the side wall of the shell are matched by threads.

[0011] In this way, the position of the push plate can be adjusted to adjust the pressure of the gas in the sealing element, and the sealing property is ensured.

[0012] Preferably, the quick connector is further provided with a control valve.

[0013] In this way, the inflation and deflation can be controlled.

[0014] Preferably, a plurality of suture holes are arranged on the suture seat around the circumference of the drainage tube.

[0015] In this way, the device can be fixed to prevent movement.

[0016] Preferably, the sealing element is trumpet-shaped after inflation, and the drainage tube is connected to one end of the sealing element with a small diameter.

[0017] In this way, the intestinal tract can be effectively blocked and sealed, and the intestinal fluid and excrement in the intestinal tract can be introduced into the drainage tube.

[0018] The present application has the advantages and positive effects that:

[0019] The sealing element is inflated after being inserted into the human body, can expand in the intestinal tract, and is funnel-shaped after expansion, which can be attached to the inner wall of the intestinal tract to block the intestinal fluid and excrement in the intestinal tract, prevent the leakage of the intestinal fluid and excrement from the wound, and cause the infection of the wound, the blocked intestinal fluid and excrement can be guided out of the body through the connected drainage tube, the normal function of the intestinal tract can be maintained, the device can be fixed through the suture seat at the other end of the drainage tube, and the pressure regulator is arranged on the gas pipe for inflating the sealing element, which can ensure the inflation degree of the sealing element when the pressure of the intestinal wall changes, prevent the leakage of the intestinal fluid and excrement, and cause the infection of the wound, and the overall structure is simple and convenient to use.

[0020] Additional advantages, objects, and features of the application will be apparent to those skilled in the art upon examination of the following specification. It is intended that the application not be limited by any of the details of the specification, and the application can be practiced with benefit by one of ordinary skill in the art. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the objectives, technical solutions and advantages of the present application clearer, the preferred embodiments of the present application will be described in detail below with reference to the drawings, in which:

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the cross section of the sealing element of the present application;

[0024] Figure 3 is a schematic diagram of the cross section of the suture seat of the present application;

[0025] Figure 4 is a schematic diagram of the cross section of the internal structure of the pressure regulator and quick connector of the present application.

[0026] Reference signs: 1, suture seat; 2, drainage tube; 3, sealing element; 4, trachea; 5, quick connector; 6, housing; 7, piston; 8, spring; 9, push plate; 10, observation window; 11, connecting tube; 12, screw rod; 13, adjusting knob; 14, suture hole; 15, control valve; 16, through hole; 17, sealing ring; 18, baffle. DETAILED DESCRIPTION

[0027] The present application can be implemented or applied in other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0028] The drawings are only used for exemplary illustration, and the representation is only a schematic diagram, not a physical diagram, and should not be understood as a limitation of the present application; in order to better illustrate the embodiments of the present application, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual size of the product; it is understandable to those skilled in the art that some known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "back" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0030] Please refer to Figures 1-4 The application discloses a kind of rectal cancer postoperative fecal diversion devices, including suture seat 1, suture seat 1 is fixedly provided with drainage tube 2, one end of drainage tube 2 is fixedly provided with sealing element 3, sealing element 3 is double-layer structure, gas pipe 4 is provided on sealing element 3, gas pipe 4 is used to be inhaled into gas in sealing element 3, and sealing element 3 fills in gas and expands, the free end of gas pipe 4 is fixedly connected with quick connector 5 after passing through suture seat 1, one-way valve is fixedly provided in quick connector 5, pressure regulator is also communicated and provided on gas pipe 4, and pressure regulator is used to automatically adjust the gas pressure in sealing element 3.

[0031] Specifically, the pressure regulator includes a housing 6, an observation window 10 is formed in the side wall of the housing 6, a piston 7 and a push plate 9 are slidably arranged in the housing 6, a spring 8 is arranged between the piston 7 and the push plate 9, a screw rod 12 is rotatably arranged on the push plate 9, an adjusting knob 13 is installed on the free end of the screw rod 12 which penetrates out of the side wall of the housing 6, a connecting pipe 11 is communicated and arranged on the side wall of the housing 6 on one side of the piston 7, and the free end of the connecting pipe 11 is communicated with the gas pipe 4. By such arrangement, the pressure of the gas in the sealing element 3 can be automatically adjusted, preventing the leakage of intestinal fluid and the damage to the intestinal mucosa due to the large intestinal peristalsis.

[0032] Specifically, the screw rod 12 and the side wall of the housing 6 are threadedly connected, and the position of the push plate 9 can be adjusted by such arrangement to adjust the pressure of the gas in the sealing element 3 and ensure the sealing performance.

[0033] Specifically, a control valve 15 is fixedly arranged on the quick connector 5, and the inflation and deflation can be controlled by such arrangement.

[0034] Specifically, a plurality of suture holes 14 are formed in the circumferential direction of the drainage tube 2 on the suture seat 1, and the device can be fixed by such arrangement to prevent movement.

[0035] Specifically, the sealing member 3 is trumpet-shaped after inflation, the drainage tube 2 is connected to the small-diameter end of the trumpet-shaped sealing member 3, which can effectively block and seal the intestinal tract, and can also guide the intestinal fluid and excrement in the intestinal tract into the drainage tube 2.

[0036] The working process of the embodiment: Before use, one end of the sealing member 3 installed in the device needs to be inserted into the intestinal tract from the anus of the human body, and then the device is fixed on the patient's body through the suture hole 14 on the suture seat 1, and the suture seat 1 is connected to the drainage bag outside the body to collect the intestinal fluid and excrement in the intestinal tract, and then the air pipe 4 is connected to the inflation equipment through the quick connector 5, and then the inflation equipment is started. After the inflation equipment is started, the air pipe 4 will inflate the sealing member 3, and the sealing member 3 will start to expand after being inflated, and the sealing ring 17 and the baffle 18 connected to the sealing member 3 will also expand, and the expanded sealing ring 17 will also be sealed with the intestinal wall to prevent intestinal fluid leakage, and the through hole 16 can guide the intestinal fluid blocked by the sealing ring 17 into the sealing member 3, so that the intestinal fluid is discharged from the drainage tube 2, and the baffle 18 can avoid the intestinal fluid flowing through the through hole 16 from flowing back. When the sealing member 3 is fully raised by the gas and the pressure gauge on the inflation equipment shows that the internal pressure of the device reaches the working pressure, the inflation equipment is turned off, then the control valve 15 is closed, and then the quick connector 5 is removed from the inflation equipment. Then the worker can rotate the knob and adjust the gas pressure in the sealing member 3 according to the patient's feedback to prevent the intestinal mucosa from being damaged due to excessive pressure of the sealing member 3 on the intestinal wall, and also to avoid the sealing member 3 separating from the intestinal wall when the intestine expands during peristalsis, so that the intestinal fluid flows into the wound and causes infection.

[0037] Because the peristalsis intensity of different patients' intestines is different, the gas pressure in the sealing member 3 needs to be adjusted according to the patient's feedback during actual use of the patient. Before the sealing member 3 is inflated, the worker needs to rotate the adjusting knob 13 first, and move the push plate 9, spring 8 and piston 7 to the left side of the middle Figure 4 When the piston 7 moves to the left side of the mark line position on the observation window 10 and stops, the spring 8 is in an elongated state at this time, and then the medical staff inflates the sealing member 3. After inflation, the gas pressure in the sealing member 3 increases and pushes the piston 7 to the right side of the middle Figure 4When the middle right side is moved, the spring 8 is compressed, and the staff can adjust the position of the push plate 9 through the adjusting knob 13 to change the pushing force of the spring 8 on the piston 7, so that the pressure gauge on the inflation device shows that the piston 7 is at the marked position in the middle of the observation window 10 when the pressure inside the sealing member 3 reaches the working pressure, and the medical staff can know the pressure of the gas inside the sealing member 3 through the relative position of the piston 7 and the mark on the observation window 10. During use, when the intestinal peristalsis expands, the pressure applied to the outside of the sealing member 3 decreases, at this time, the spring 8 pushes the piston 7 to move to the Figure 4 middle left side, so that the sealing member 3 can expand while the gastrointestinal tract expands, ensuring the sealing effect; when the intestinal peristalsis shrinks, the pressure applied to the outside of the sealing member 3 increases, if the size of the sealing member 3 remains unchanged at this time, the intestinal mucosa may be damaged due to excessive pressure, and when the pressure applied to the outside of the sealing member 3 increases after the pressure regulator is installed, part of the gas inside the sealing member 3 is reversely pressed into the pressure regulator through the trachea 4, so that the piston 7 moves to the Figure 4 middle right side, ensuring that the sealing member 3 can continuously block and seal the intestinal tract.

[0038] In the embodiment, the suture seat 1 and the drainage tube 2 are both hard silica gel tubes, the trachea 4 is a medical flexible tube with elasticity, the length of the drainage tube 2 is 100 mm, the outer diameter is 25 mm, the inner diameter is 20 mm, and the maximum outer diameter of the sealing member 3 after expansion is 35 mm.

[0039] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions, which should be covered in the scope of the claims of the present application.

Claims

1. A postoperative rectal cancer fecal diversion device, characterized by: The application relates to a suture seat (1) provided with a drainage tube (2) fixedly arranged on the suture seat (1), one end of the drainage tube (2) is provided with a sealing element (3) in a double-layer structure, an air pipe (4) is arranged on the sealing element (3) and used for feeding gas into the sealing element (3), the sealing element (3) is inflated by the gas, the free end of the air pipe (4) is fixedly connected with a quick connector (5) after penetrating through the suture seat (1), a one-way valve is fixedly arranged in the quick connector (5), a pressure regulator is also arranged in communication on the air pipe (4) and used for automatically adjusting the gas pressure in the sealing element (3). The pressure regulator comprises an outer shell (6), an observation window (10) is formed in the side wall of the outer shell (6), a piston (7) and a push plate (9) are slidably arranged in the outer shell (6), a spring (8) is arranged between the piston (7) and the push plate (9), a screw rod (12) is rotatably arranged on the push plate (9), the free end of the screw rod (12) is provided with an adjusting knob (13) after penetrating through the side wall of the outer shell (6), a connecting pipe (11) is arranged in communication on the side wall of the outer shell (6) on one side of the piston (7), and the free end of the connecting pipe (11) is connected with the air pipe (4) in communication. The sealing element (3) is in a horn shape after inflation, and the drainage tube (2) is connected with one end of the horn-shaped sealing element (3) with a small diameter. When the sealing element (3) is inflated, a sealing ring (17) and a baffle (18) connected with the sealing element (3) are inflated synchronously, the inflated sealing ring (17) is attached to the intestinal wall to prevent intestinal fluid leakage, the through hole (16) on the sealing ring (17) can guide the intestinal fluid blocked by the sealing ring (17) into the sealing element (3) to discharge the intestinal fluid from the drainage tube (2), and the baffle (18) is used for guiding the intestinal fluid and preventing the intestinal fluid introduced through the through hole (16) from flowing back when entering the sealing element (3). When the intestinal tract is expanded, the pressure applied to the outside of the sealing element (3) is reduced, the spring (8) is elongated to push the piston (7), and the sealing element (3) is inflated at the same time when the stomach is expanded, so that the sealing effect is ensured. When the intestinal tract is contracted, the pressure applied to the outside of the sealing element (3) is increased, part of the gas in the sealing element (3) is reversely passed through the air pipe (4) and pressed into the pressure regulator, so that the piston (7) is pushed to compress the spring (8) and move to the side of the push plate (9).

2. The device according to claim 1, wherein: The screw rod (12) and the side wall of the outer shell (6) are matched through threads.

3. The device according to claim 1, wherein: The quick connector (5) is further provided with a control valve (15).

4. The device according to claim 1, wherein: A plurality of suture holes (14) are formed on the suture seat (1) in the circumferential direction of the drainage tube (2).

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