Gastrointestinal decompression equipment for gastrointestinal surgery

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to gastrointestinal decompression equipment for gastrointestinal surgery, which comprises a liquid storage mechanism, an insertion tube and an infusion pump, and the infusion pump generates negative pressure to guide dissolved substances in the stomach of a patient into the liquid storage mechanism to complete decompression operation; the insertion tube comprises a hose, a liquid suction head and a lubricating mechanism, a lining piece is arranged in the hose to prevent deformation, and the hemispherical design of the liquid suction head is matched with the lubricating mechanism to reduce insertion resistance and reduce discomfort of a patient; the liquid storage mechanism prevents gastric soluble substances from flowing back through a backflow piece and a limiting pipe, and the operation safety is improved; the equipment is compact in structure and convenient to mount and dismount, and ensures that the whole pressure reduction process is smooth, stable and safe.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a gastrointestinal decompression device for gastrointestinal surgery. Background Art

[0002] Gastrointestinal decompression is a common adjuvant treatment for gastrointestinal surgery. It is mainly used to reduce the pressure in the patient's gastrointestinal tract and reduce the accumulation of liquid and gas in the stomach, thereby relieving the patient's abdominal distension, nausea and other discomfort symptoms. During gastrointestinal surgery, gastrointestinal decompression equipment can help reduce the interference of gastrointestinal contents on the surgical area and reduce the risk of intraoperative complications. In addition, gastrointestinal decompression is also commonly used in the recovery phase after gastrointestinal surgery to prevent excessive gastrointestinal pressure from affecting healing.

[0003] Existing gastrointestinal decompression equipment usually consists of a gastric tube, a suction pump, and a liquid storage device, etc., which discharge the liquid and gas in the stomach through negative pressure during operation. However, there are some shortcomings in the use of existing equipment. For example, the gastric tube may cause damage to the inner wall of the esophagus or nasal cavity during the insertion process, causing discomfort to the patient or even inflammation. In addition, liquid reflux is also a common problem during the decompression operation, especially when the intragastric pressure is greater than the negative pressure of the suction pump, which can easily cause the discharged liquid to re-enter the stomach, thereby affecting the decompression effect and even increasing the risk of infection. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a gastrointestinal decompression device for gastrointestinal surgery, which can reduce the discomfort and risk of injury during the intubation process, effectively prevent liquid reflux, and improve the safety and reliability of gastrointestinal decompression. Through the specific spherical liquid suction head design and lubrication device, the friction and damage to the inner wall of the esophagus during the insertion of the gastric tube are reduced.

[0005] To achieve the above object, the present invention provides the following technical solutions: A gastrointestinal decompression device for gastrointestinal surgery, comprising a liquid storage mechanism for storing stomach solution; The input end of the liquid storage mechanism is connected to an insertion tube for insertion into the stomach; The output end of the liquid storage mechanism is connected with a liquid pump; When performing a decompression operation on the gastrointestinal tract, a negative pressure is generated in the insertion tube through a liquid pump, so that the stomach solution enters the liquid storage mechanism through the insertion tube; The insertion tube comprises a hose, the insertion end of which is connected to a liquid suction head, and the liquid suction head is covered with a lubricating mechanism, and the other end of the hose is connected to an elbow for changing direction; When installing the hose, a lining member is arranged inside the hose, and the lining member is pulled out of the hose after the hose is installed.

[0006] Furthermore, the liquid storage mechanism comprises a tank body for storing stomach solution, and a tank cover is clamped on the top of the tank body, a reflux member and a second joint are plugged on the top of the tank cover, and a first joint is plugged on the top of the reflux member; The first joint is connected to the elbow, and the second joint is connected to the liquid pump.

[0007] Furthermore, a clamping plate and a clamping claw are arranged outside the top opening end of the tank body, and the clamping plate and the clamping claw are arranged opposite to each other; The outer side of the compartment cover is provided with elastic claws and an insertion plate opposite to each other; When installing the bin cover onto the tank body, the insertion plate needs to be inserted into the locking claws, and the locking plate needs to be inserted into the elastic claws.

[0008] Furthermore, a liquid inlet pipe and a liquid suction pipe are provided at the inner bottom of the bin cover; The second connector is plugged into the compartment cover; The reverse flow member comprises a limit tube connected to the bottom of the liquid inlet pipe; A connector plugged into the top of the liquid inlet pipe; The interior of the limiting tube is movably connected with a blocking piece.

[0009] Furthermore, the outer side of the limiting tube is provided with through grooves at equal intervals around its central axis; The height of the blocking member is smaller than the through slot; A ball head is arranged on the top of the blocking member, a trumpet mouth is arranged on the inner side of the top of the limiting tube, and the trumpet mouth fits the ball head.

[0010] Furthermore, a positioning block is symmetrically provided at the bottom of the joint, and a positioning groove matched with the positioning block is symmetrically provided at the top of the liquid inlet pipe.

[0011] Furthermore, a first through hole is formed through the outer side of one end of the hose, the number of the first through holes is set to be multiple, and the multiple first through holes are distributed in a spiral shape; The outer side of the hose is provided with marking rings at equal intervals along its length; One end of the liquid suction head is set to be hemispherical, and a second through hole is opened through the end of the liquid suction head.

[0012] Furthermore, a limiting groove is provided on the outer side of the pipette head; The outer side of the hose is provided with embedding grooves, which are distributed in a spiral shape; The lubricating mechanism comprises an annular member sleeved on the limiting groove, the annular member is connected with a liquid infusion tube, and the liquid infusion tube is embedded in the embedding groove; The outer side of the annular member is provided with drainage holes at equal intervals around its central axis.

[0013] Furthermore, the lining member includes a lining strip, and a support member is sleeved on the lining strip; The outer side of the support member is provided with support claws at equal intervals along its central axis.

[0014] Furthermore, a rotating seat is rotatably connected to the elbow, and one end of the hose is plugged into the rotating seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects: First of all, the device can significantly improve the comfort during insertion through the design of the hose, suction head and lubrication mechanism. The hemispherical design of the suction head reduces damage to the patient's esophageal wall. At the same time, the lubrication mechanism releases lubricating liquid through the drainage hole, so that the suction head is always lubricated during the insertion process, effectively reducing the insertion resistance and reducing the patient's discomfort. This design solves the problem of difficult insertion of gastric tubes and high friction in traditional devices, making the operation smoother and safer.

[0016] Secondly, the structural design of the liner and the hose ensures that the shape of the hose remains stable during the insertion process. The liner provides support for the hose during the insertion process to prevent the hose from bending or deforming. At the same time, the infusion tube on the hose acts as a reinforcing rib, further improving the hose's pressure resistance. This design solves the problem of poor drainage caused by the hose being easily deformed by external pressure in traditional equipment, ensuring the smooth progress of the entire decompression process.

[0017] In addition, the design of the reflux piece and the limit tube in the liquid storage mechanism effectively prevents the reflux of gastric solution. Through the cooperation of the blocking piece and the trumpet mouth in the limit tube, when the intragastric pressure is greater than the negative pressure of the system, the blocking piece automatically rises and prevents the reflux of gastric solution, thereby ensuring safety during the decompression process. This design solves the problem of gastric solution reflux caused by pressure fluctuations in traditional equipment and avoids the risk of secondary contamination and infection.

[0018] Finally, the snap-fit ​​design between the bin cover and the tank body achieves stable installation and convenient removal of the bin cover through the cooperation of the snap-fit ​​plate, snap-fit ​​claws, elastic claws and insertion plate, while ensuring the sealing of the tank body. This design ensures the airtightness of the equipment during use, effectively avoids the leakage of gastric solution and inconvenience in operation, and improves the practicality of the overall equipment.

[0019] Through the above technical scheme, the present invention solves the problems of existing gastrointestinal decompression equipment such as inconvenient insertion, unstable decompression, high risk of reflux and insufficiently compact structure, making the equipment safer and more reliable during operation, and improving the patient's comfort and the effectiveness of medical operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the liquid storage mechanism of the present invention; Figure 3 The structure of the bin cover of the present invention is shown in FIG. Figure 1 ; Figure 4 The structure of the bin cover of the present invention is shown in FIG. Figure 2 ; Figure 5 It is a structural schematic diagram of the reverse flow member of the present invention; Figure 6 It is a structural schematic diagram of the insertion tube of the present invention; Figure 7 It is a schematic diagram of the structure of the hose of the present invention; Figure 8 It is a structural schematic diagram of the liquid pipetting head of the present invention; Fig. 9 It is a structural schematic diagram of the lubrication mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the lining member of the present invention; Fig.11 It is a structural schematic diagram of the elbow of the present invention.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Liquid storage mechanism; 11. tank body; 111. clamping plate; 112. clamping claw; 12. Bin cover; 121. Elastic claw; 122. Insertion plate; 123, liquid inlet pipe; 1231, positioning groove; 124, liquid suction pipe; 13. Reflux parts; 131, limit tube; 1311, through groove; 1312, bell mouth; 132, blocking piece; 1321, ball head; 133, joint; 1331, positioning block; 14. First joint; 15. Second joint; 2. Insertion tube; 21. hose; 211. embedding groove; 212. marking ring; 213. first through hole; 22, liquid suction head; 221, second through hole; 222, limiting groove; 23. Lubricating mechanism; 231. Ring member; 2311. Drain hole; 232. Infusion tube; 24, lining member; 241, lining strip; 242, support member; 2421, support claw; 25. Elbow; 251. Rotating seat; 3. Liquid pump. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. Example

[0023] See also Figure 1-Figure 11 , a gastrointestinal decompression device for gastrointestinal surgery, including a liquid storage mechanism 1 for storing stomach solutions; the liquid storage mechanism 1 is used to collect and store stomach solutions through negative pressure to avoid discomfort or harm caused by excessive stomach pressure in patients. The input end of the liquid storage mechanism 1 is connected to an insertion tube 2 for insertion into the stomach; the insertion tube 2 is used to transport the stomach solutions of the patient from the stomach through a hose 21 to the liquid storage mechanism 1; the output end of the liquid storage mechanism 1 is connected to a liquid pump 3, which is used to provide negative pressure for the system to ensure that the stomach solutions can smoothly pass through the insertion tube 2 into the liquid storage mechanism 1, thereby completing the gastrointestinal decompression operation. When performing a gastrointestinal decompression operation, a negative pressure is generated in the insertion tube 2 by the liquid pump 3, and then the stomach solutions pass through the insertion tube 2 into the liquid storage mechanism 1; the liquid pump 3 maintains the continuous extraction of stomach solutions through the negative pressure it generates, ensuring that the decompression process is smooth and effective.

[0024] The insertion tube 2 includes a hose 21, and the insertion end of the hose 21 is connected to a liquid suction head 22. The liquid suction head 22 has a hemispherical design, which can effectively reduce the damage to the patient's esophageal wall during insertion and ensure that the liquid suction head 22 will not be blocked during the decompression operation; the other end of the hose 21 is connected to an elbow 25 for changing direction, and the elbow 25 can provide the function of pipeline changing direction to ensure that the insertion tube can still be smoothly installed and operated when it is in a curved position. When installing the hose 21, an inner lining 24 is provided inside the hose 21, and the inner lining 24 can provide support for the hose 21 during insertion to prevent the hose from folding or deforming during the insertion process; after the hose 21 is installed, the inner lining 24 is pulled out of the hose 21 to ensure that the hose always maintains stability during operation.

[0025] See also Figure 2 The liquid storage mechanism 1 includes a tank body 11 for storing gastric solutions, and the tank body 11 is used to contain liquid drawn from the patient's stomach for subsequent treatment; a tank cover 12 is engaged with the top of the tank body 11, and the function of the tank cover 12 is to seal the tank body 11 to prevent liquid leakage; a reflux piece 13 and a second joint 15 are plugged on the top of the tank cover 12, and the reflux piece 13 is used to prevent the gastric solutions in the liquid storage tank from backflowing when the pressure fluctuates, and the second joint 15 is connected to the liquid pump 3 to ensure that the entire system maintains a negative pressure state; a first joint 14 is plugged on the top of the reflux piece 13, the first joint 14 is connected to the elbow 25, and the second joint 15 is connected to the liquid pump 3 to ensure the smoothness and safety of the flow of liquid in the system.

[0026] See also Figure 3-Figure 4 A locking plate 111 and a locking claw 112 are provided on the outside of the top opening end of the tank body 11, and the locking plate 111 and the locking claw 112 are arranged opposite to each other to ensure that the bin cover 12 can be firmly installed on the tank body 11; elastic claws 121 and insertion plates 122 are arranged opposite to each other on the outside of the bin cover 12, and the elastic claws 121 and the insertion plates 122 are used together to ensure that the bin cover 12 can be firmly engaged with the tank body 11 during installation, and can also be easily operated when disassembly is required; when the bin cover 12 is installed on the tank body 11, the insertion plate 122 needs to be inserted into the locking claw 112, and the locking plate 111 needs to be inserted into the elastic claw 121 to ensure the sealing effect during the installation process and the operational stability of the equipment.

[0027] See also Figure 5 A liquid inlet pipe 123 and a liquid suction pipe 124 are provided at the inner bottom of the chamber cover 12, and the liquid inlet pipe 123 and the liquid suction pipe 124 are responsible for respectively introducing and exporting the liquid in the tank body; the second joint 15 is plugged into the chamber cover 12 to provide a connection with the liquid suction pump 3; the reflux member 13 includes a limiting tube 131 connected to the bottom of the liquid inlet pipe 123, and the limiting tube 131 prevents reflux by setting a blocking member 132 to ensure that the gastric solution flows only in one direction; a joint 133 is plugged into the top of the reflux member 13, and the joint 133 is used to connect other pipeline components and ensure the sealing of the entire device; the internal movably connected to the limiting tube 131 is a blocking member 132, and the blocking member 132 can automatically move when the pressure in the stomach is high to prevent liquid reflux.

[0028] See also Figure 5 The outer side of the limiting tube 131 is provided with through grooves 1311 at equal intervals around its axis, and the through grooves 1311 are used as the flow path of gastric solution to ensure that the solution can be smoothly discharged into the tank body 11; the height of the blocking member 132 is smaller than the through groove 1311, and the pipeline can be blocked when necessary; a ball head 1321 is provided on the top of the blocking member 132, and a trumpet mouth 1312 is provided on the inner side of the top of the limiting tube 131, and the trumpet mouth 1312 is fitted with the ball head 1321. When the intragastric pressure increases, the ball head 1321 can fit with the trumpet mouth 1312 to prevent liquid reflux and ensure the safety of the system.

[0029] See also Figure 4-Figure 5 A positioning block 1331 is symmetrically provided at the bottom of the joint 133. The positioning block 1331 is used to cooperate with other components in the equipment to ensure that there is no position deviation of the components during installation; a positioning groove 1231 that cooperates with the positioning block 1331 is symmetrically provided at the top of the liquid inlet pipe 123. The positioning groove 1231 ensures a firm connection between the joint 133 and the liquid inlet pipe 123.

[0030] See also Figure 1-Figure 11A first through hole 213 is formed through the outer side of one end of the hose 21, and the number of the first through holes 213 is set to be multiple, and the multiple first through holes 213 are spirally distributed to ensure that it is not easy to be blocked when the liquid in the stomach passes through; marking rings 212 are arranged at equal intervals on the outer side of the hose 21 along its length, and the marking rings 212 are used to mark the insertion depth of the hose, so that the operator can accurately control the insertion depth of the hose; one end of the liquid suction head 22 is set to be hemispherical, and the hemispherical design can effectively reduce the damage to the stomach wall during the insertion process, and a second through hole 221 is formed through one end of the liquid suction head 22, and the second through hole 221 is used for extracting and draining the dissolved substances in the stomach.

[0031] See also Figure 6-Figure 11 A limiting groove 222 is provided on the outer side of the pipette head 22, and the limiting groove 222 is used to install the lubricating mechanism 23. The lubricating mechanism 23 can provide lubrication during the insertion process to reduce friction and discomfort; an embedding groove 211 is provided on the outer side of the hose 21, and the embedding groove 211 is distributed in a spiral shape, and is used to embed the infusion tube 232 of the lubricating mechanism to ensure that the lubricant can be evenly distributed; the lubricating mechanism 23 includes an annular member 231 sleeved on the limiting groove 222, and the annular member 231 is used to evenly distribute the lubricating liquid on the outer side of the pipette head 22 through the infusion tube 232 to ensure smooth insertion; the infusion tube 232 is embedded in the embedding groove 211 to ensure that the lubricating liquid can be transmitted to the annular member 231 through the infusion tube; the outer side of the annular member 231 is provided with drainage holes 2311 at equal intervals around its axis, and the drainage holes 2311 are used to discharge the lubricating liquid, so that the pipette head 22 is always in a lubricated state, ensuring the smoothness of the entire insertion and extraction process.

[0032] See also Fig.10 The lining member 24 includes a lining strip 241, which provides support for the hose 21 to prevent it from bending or being deformed by pressure during the insertion process; a support member 242 is sleeved on the lining strip 241, and support claws 2421 are evenly spaced on the outer side of the support member 242 along its central axis. The support claws 2421 are used to support the inner wall of the hose during the insertion process to ensure that the hose 21 can maintain its shape and function.

[0033] See also Fig.11 The elbow 25 is rotatably connected with a rotating seat 251, and the rotating seat 251 is used to provide a rotating installation of the hose 21 at multiple angles to ensure the operational flexibility of the equipment; one end of the hose 21 is plugged into the rotating seat 251 to provide a stable connection. Example

[0034] In this embodiment, the device's liquid suction head 22 adopts a hemispherical design to ensure that the friction on the inner wall of the patient's esophagus during the insertion process is greatly reduced. The diameter of the liquid suction head is set to 8 mm to 12 mm, depending on the patient's physiological characteristics. This design not only reduces the patient's pain, but also significantly reduces the risk of esophageal injury. In order to further improve the comfort of the insertion process, the lubrication mechanism 23 set on the liquid suction head 22 continuously provides lubricating fluid to the ring member 231 through the infusion tube 232. The lubricating fluid uses a non-irritating, non-toxic water-soluble lubricant, such as a polyethylene glycol aqueous solution. The viscosity of the lubricating fluid is controlled between 0.05 Pa·s and 0.1 Pa·s to ensure that the liquid suction head is evenly lubricated during the insertion process, and the surface of the liquid suction head is evenly covered through the drainage hole 2311, so that the entire insertion operation is smoother. According to experimental data, when the device is used for intubation, the insertion resistance is reduced by about 30%, the patient's discomfort is significantly reduced, and the time of the intubation process is shortened by about 20%. Example

[0035] In this embodiment, a lining 24 is provided inside the hose 21, and the lining 24 is made of high-strength medical plastics such as polycarbonate (PC) and has certain flexibility and pressure resistance. During the insertion process, the lining 24 evenly supports the inner wall of the hose 21, so that the hose is not easy to bend or deform under the action of external force. In the specific experiment, the diameter of the hose 21 is 6 mm to 10 mm, and the thickness of the lining 24 is 1 mm to 2 mm, which ensures that the hose can maintain good bending resistance. In the process of pushing the liquid suction head 22, the lining 24 always maintains support for the hose, and the lining can be smoothly pulled out after the push is completed, without affecting subsequent operations. After experiments, the introduction of the lining 24 improves the stability of the hose insertion by about 25%, effectively reducing the problem of poor decompression caused by the folding of the hose. Example

[0036] In this embodiment, the reflux member 13 in the liquid storage mechanism 1 adopts a matching design of a limit tube 131 and a blocking member 132. The diameter of the limit tube 131 is 10 mm, and the diameter of the ball head 1321 of the blocking member 132 is slightly larger than the inner diameter of the limit tube by 0.2 mm, ensuring that the blocking member 132 can respond quickly and effectively prevent the gastric solution from refluxing during reflux. The width of the through grooves 1311 arranged at equal intervals outside the limit tube 131 is 1 mm to 2 mm to ensure that the gastric solution can flow smoothly into the tank body 11. Through this design, when the intragastric pressure exceeds the system negative pressure, the blocking member 132 will move up quickly, and the ball head 1321 will be sealed and fitted with the trumpet mouth 1312 to prevent reflux. The experimental results show that when the intragastric pressure reaches 200 Pa, the reflux device can still work normally, and the effectiveness of preventing reflux reaches more than 99%, which significantly improves the safety of the gastrointestinal decompression process. Example

[0037] In this embodiment, the bin cover 12 and the tank body 11 are engaged with each other through the locking plate 111 and the locking claw 112 to ensure the stability of the installation. The locking plate 111 and the locking claw 112 are made of medical-grade stainless steel, which has the characteristics of corrosion resistance, antibacterial and high strength. In the experiment, the locking structure can still maintain a tight fit after repeated disassembly and assembly 500 times, and the sealing effect is not affected. On this basis, the materials of the elastic claws 121 and the insertion plate 122 of the bin cover 12 are selected as high-strength engineering plastics, which can maintain good elasticity during multiple uses. During the operation of the equipment, the sealing of the tank body ensures the stability of the negative pressure operation and avoids the situation where the decompression effect decreases due to the entry of external gas. The experimental results show that under different environmental pressures, the sealing performance of the equipment can still maintain an effectiveness of more than 95%, further ensuring the smooth progress of the decompression process. Example

[0038] In this embodiment, marking rings 212 are arranged at equal intervals along the length direction on the outside of the hose 21. The marking rings are made of corrosion-resistant and wear-resistant materials such as medical silicone, and are spaced at 1 cm to help the operator accurately control the insertion depth of the hose. Through the marking ring, the operator can accurately judge the insertion depth to ensure that the gastric tube is inserted into the appropriate position of the patient's stomach. In addition, a plurality of first through holes 213 are provided on the outside of the hose 21, and these through holes are distributed in a spiral shape to ensure that the liquid and gas in the stomach can pass smoothly. The diameter of each through hole is 0.5 mm to 1 mm, which ensures smooth passage without affecting the strength of the hose. Experiments show that the hose with marking rings and through holes improves the insertion accuracy by 15%, and the extraction efficiency of the liquid in the stomach is improved by 10%.

[0039] The working principle of the present invention is: When using, select an insertion tube 2 of appropriate size according to the patient's body shape, and then let the patient sit or semi-sit (raise the head and upper body about 45° to 60°). This posture is conducive to the gastric tube entering the esophagus and not easily entering the trachea. Before inserting the insertion tube 2, explain the purpose and process of gastric tube insertion to the patient, comfort him / her, and tell him / her that he / she may feel nausea and slight discomfort, but this is normal and can be relieved by swallowing; Measure the distance from the nostril to the earlobe and then to the xiphoid process (lower chest), make a mark on the soft tube 21, use this length as a reference for the insertion depth, and use a water-soluble lubricant to lubricate the front 10-15 cm of the insertion tube 2 for easier insertion; Gently insert the pipette tip 22 into the patient's nostrils and push it down along the nasal cavity, with gentle movements, and try to keep it in a straight line; when the pipette tip 22 reaches the nasopharynx, let the patient lower his head and cooperate with the swallowing action, and you can provide the patient with a glass of water and let him drink it through the straw in small sips, which can help the gastric tube to smoothly enter the esophagus instead of entering the trachea by mistake; with the patient's swallowing cooperation, continue to push the insertion tube 2 to the previously marked depth until the end of the gastric tube reaches the stomach; During the insertion of the insertion tube 2, the spherical design of the liquid suction head 22 can prevent the liquid suction head 22 from causing damage to the inner wall of the esophagus during the insertion process, and when the liquid suction head 22 is pushed, a syringe needs to be connected to one end of the infusion tube 232, and a water-soluble lubricant is pushed into the infusion tube 232 through the syringe. The lubricant will enter the annular member 231 through the infusion tube 232 and be discharged through the drainage hole 2311. In this way, during the advancement of the liquid suction head 22, the liquid suction head 22 will always be covered with the lubricant. When the pipette head 22 is pushed to a predetermined position, the lining member 24 is pulled out from the hose 21. During the insertion into the insertion tube 2, the lining member 24 can provide support to the inner wall of the hose 21, so that when the insertion tube 2 is pushed, the hose 21 is subjected to a more uniform force, thereby preventing it from bending. The infusion tube 232 embedded in the hose 21 also serves as a reinforcing rib to prevent the hose 21 from being deformed or folded due to external pressure, thereby maintaining smoothness of liquid extraction.

[0040] After the lining member 24 is pulled out, the elbow 25 is connected to the hose 21, and the other end of the elbow 25 is connected to the first joint 14; Then, the liquid pump 3 is turned on. Under the action of the liquid pump 3, negative pressure is generated in the liquid storage mechanism 1, so that the stomach solution enters the tank body 11 through the insertion tube 2. In this process, the stomach solution first enters the reflux member 13 through the first connector 14, and then flows into the tank body 11 through the reflux member 13; When passing through the reflux member 13, the stomach solution first passes through the joint 133, then enters the limiting tube 131, and is discharged into the tank body 11 through the through groove 1311 opened on the outer side of the limiting tube 131. When the pressure in the stomach is greater than the pressure generated by the suction pump 3, the blocking member 132 will move upward in the limiting tube 131, and the ball head 1321 will fit with the trumpet mouth 1312, so as to avoid the reflux of the stomach solution stored in the liquid storage mechanism 1, thereby making the entire decompression process safer.

[0041] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A gastrointestinal decompression device for gastrointestinal surgery, characterized in that: It comprises a liquid storage mechanism (1) for storing stomach solution; The input end of the liquid storage mechanism (1) is connected to an insertion tube (2) for inserting into the stomach; The output end of the liquid storage mechanism (1) is connected to a liquid pump (3); When performing a decompression operation on the gastrointestinal tract, a negative pressure is generated in the insertion tube (2) by means of a liquid extraction pump (3), thereby allowing the stomach solution to enter the liquid storage mechanism (1) through the insertion tube (2); The insertion tube (2) comprises a hose (21), the insertion end of the hose (21) is connected to a liquid suction head (22), a lubrication mechanism (23) is sleeved on the liquid suction head (22), and the other end of the hose (21) is connected to an elbow (25) for changing direction; When installing the hose (21), an inner lining member (24) is provided inside the hose (21), and after the installation of the hose (21) is completed, the inner lining member (24) is pulled out of the hose (21).

2. A gastrointestinal decompression device for gastrointestinal surgery according to claim 1, characterized in that: The liquid storage mechanism (1) comprises a tank body (11) for storing stomach solution, and a tank cover (12) is engaged with the top of the tank body (11), a reflux member (13) and a second joint (15) are plugged onto the top of the tank cover (12), and a first joint (14) is plugged onto the top of the reflux member (13); The first joint (14) is connected to the elbow (25), and the second joint (15) is connected to the liquid extraction pump (3).

3. A gastrointestinal decompression device for gastrointestinal surgery according to claim 2, characterized in that: A locking plate (111) and a locking claw (112) are arranged on the outside of the top opening end of the tank body (11), and the locking plate (111) and the locking claw (112) are arranged opposite to each other; The outer side of the bin cover (12) is provided with elastic claws (121) and an insertion plate (122) opposite to each other; When the bin cover (12) is mounted on the tank body (11), the insertion plate (122) needs to be inserted into the locking claw (112), and the locking plate (111) needs to be inserted into the elastic claw (121).

4. The gastrointestinal decompression device for gastrointestinal surgery according to claim 2, characterized in that: The inner bottom of the bin cover (12) is provided with a liquid inlet pipe (123) and a liquid suction pipe (124); The second connector (15) is plugged into the bin cover (12); The reverse flow member (13) comprises a limit tube (131) connected to the bottom of the liquid inlet tube (123); A connector (133) plugged into the top of the liquid inlet pipe (123); The interior of the limiting tube (131) is movably connected to a blocking piece (132).

5. The gastrointestinal decompression device for gastrointestinal surgery according to claim 4, characterized in that: The outer side of the limiting tube (131) is provided with through grooves (1311) at equal intervals around its central axis; The blocking member (132) has a height smaller than the through slot (1311); A ball head (1321) is provided at the top of the blocking member (132), a trumpet mouth (1312) is provided on the inner side of the top of the limiting tube (131), and the trumpet mouth (1312) fits the ball head (1321).

6. The gastrointestinal decompression device for gastrointestinal surgery according to claim 4, characterized in that: A positioning block (1331) is symmetrically provided at the bottom of the joint (133), and a positioning groove (1231) matching with the positioning block (1331) is symmetrically provided at the top of the liquid inlet pipe (123).

7. The gastrointestinal decompression device for gastrointestinal surgery according to claim 1, characterized in that: A first through hole (213) is formed through the outer side of one end of the hose (21), the number of the first through holes (213) is set to be multiple, and the multiple first through holes (213) are distributed in a spiral shape; The outer side of the hose (21) is provided with marking rings (212) at equal intervals along its length; One end of the liquid suction head (22) is configured to be hemispherical, and a second through hole (221) is formed through the one end of the liquid suction head (22).

8. The gastrointestinal decompression device for gastrointestinal surgery according to claim 7, characterized in that: A limiting groove (222) is provided on the outer side of the liquid pipetting head (22); The outer side of the hose (21) is provided with embedding grooves (211), and the embedding grooves (211) are distributed in a spiral shape; The lubricating mechanism (23) comprises an annular member (231) sleeved on the limiting groove (222), the annular member (231) being connected to a liquid infusion tube (232), and the liquid infusion tube (232) being embedded in the embedding groove (211); The outer side of the annular member (231) is provided with drainage holes (2311) at equal intervals around its central axis.

9. The gastrointestinal decompression device for gastrointestinal surgery according to claim 8, characterized in that: The lining member (24) comprises a lining strip (241), and a supporting member (242) is sleeved on the lining strip (241); The outer side of the support member (242) is provided with support claws (2421) at equal intervals along its central axis.

10. The gastrointestinal decompression device for gastrointestinal surgery according to claim 1, characterized in that: The elbow (25) is rotatably connected to a rotating seat (251), and one end of the hose (21) is plugged into the rotating seat (251).

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