Drainage device for gastrointestinal surgery

Abstract

The invention relates to the technical field of gastrointestinal drainage, in particular to a drainage device for gastrointestinal surgery. Comprising a shell, an absorption bag is installed in the shell, a pressing plate is connected in the shell in a sliding mode, the absorption bag is fixedly connected and communicated with a first catheter, a first one-way valve is installed in the first catheter, a second catheter is fixedly connected in the shell, and the drainage tube is fixedly connected and communicated with the second catheter. The traction rope is arranged in the shell, one end of the traction rope is fixedly connected with a cleaning piece, and the cleaning piece is located in the drainage tube of the second catheter; and the cleaning piece rotates in the second guide pipe, so that impurities in the second guide pipe are cleaned. Through rotation of the cleaning piece, impurities are promoted to be dispersed, and the plugging area of the drainage tube is reduced, so that the drainage tube works normally, the pressure in the body of a patient can be prevented from changing drastically in the process, and secondary damage to the patient is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of gastrointestinal drainage, and particularly relates to a drainage device for gastrointestinal surgery. Background Art

[0002] A drainage device is a device for discharging accumulated fluid, gas or infectious substances in a patient's body, so as to reduce the pressure in the patient's body, and is commonly used in cases such as intestinal obstruction and postoperative paralytic ileus. Common gastrointestinal surgery drainage devices are mainly divided into passive drainage devices and active drainage devices, among which the active drainage device actively drains by relying on negative pressure suction.

[0003] During the process of draining the gastrointestinal tract of a patient, the aspirated drainage will contain food residues, blood clots or mucus, etc. These drainage substances are likely to accumulate in the drainage tube, which will cause the drainage tube to become blocked. At the same time, if the patient takes drugs such as aluminum magnesium carbonate and sucralfate, such drugs will react with gastrointestinal fluid to form a viscous gel, and the viscous gel will deposit in the drainage tube, further increasing the risk of drainage tube blockage. After the drainage tube is blocked, the drainage operation cannot be carried out smoothly, and the impurities in the patient's body cannot be discharged in time, resulting in the expansion of the patient's gastrointestinal cavity and stimulating the visceral nerves.

[0004] After the drainage tube is blocked, generally 20-30 milliliters of normal saline is used to quickly inject and flush the drainage tube, and then gently aspirate back. After repeating this several times, the adhesion is loosened by the impact force of the liquid. However, if the flushing liquid cannot be effectively discharged during the flushing process, it will cause the pressure in the gastrointestinal tract to increase, aggravating the patient's discomfort or causing other complications. At the same time, high-pressure flushing will cause gastric mucosa damage, and even cause bleeding or perforation. If the blockage cannot be relieved by high-pressure flushing, it will delay further treatment measures, thus affecting the treatment effect. Summary of the Invention

[0005] In order to overcome the disadvantages described in the above background art, the present invention provides a drainage device for gastrointestinal surgery.

[0006] The technical implementation solution of the present invention is: a drainage device for gastrointestinal surgery, including a housing, an absorption sac is installed inside the housing, a pressing plate is slidably connected inside the housing, and a first elastic member is arranged between the two. The pressing plate is fixedly connected to the absorption sac, the absorption sac is fixedly connected and communicated with a first catheter, a first one-way valve is installed in the first catheter, a second catheter is fixedly connected inside the housing, the second catheter is communicated with the first catheter, and the second catheter is fixedly connected and communicated with a drainage tube located outside the housing. It further includes: A towing rope, which is arranged inside the housing and is located inside the second catheter. One end of the towing rope is fixedly connected to a cleaning member, and the cleaning member is located inside the drainage tube of the second catheter; A winding and rotating mechanism is arranged inside the housing and is used for winding the towing rope and driving the cleaning member to rotate; A driving mechanism is arranged inside the housing and is used for driving the towing rope to move, so that the cleaning member moves to the place to be cleaned. By rotating the cleaning member inside the second conduit, impurities inside the second conduit are cleaned.

[0007] As a further preferred solution, the cleaning member is elastic. The cleaning member is composed of a plurality of helical parts and a plurality of straight connecting parts that are staggered with each other. A plurality of expansion cavities are arranged on the drainage pipe of the second conduit, and the expansion cavities of the drainage pipe correspond to the helical parts of the cleaning member one by one.

[0008] As a further preferred solution, the winding and rotating mechanism includes: A mounting shell is slidably connected inside the housing, and the mounting shell is slidably connected with the towing rope; A winding member is rotatably connected to the mounting shell, and the other end of the towing rope is fixedly connected to the winding member; A locking assembly is arranged on the mounting shell and is used for fixing the towing rope.

[0009] As a further preferred solution, a first clamping block is slidably connected to the housing, and a second elastic member is arranged between the two. The first clamping block penetrates through the mounting shell, and the first clamping block is used for limiting the winding member and the mounting shell.

[0010] As a further preferred solution, the locking assembly includes: A rotating ring is rotatably connected inside the mounting shell, and the towing rope penetrates through the rotating ring; A second clamping block is slidably connected to the rotating ring, and a third elastic member is arranged between the two. The second clamping block is slidably connected with the winding member, and the second clamping block is used for fixing the towing rope.

[0011] As a further preferred solution, the driving mechanism includes: A rocker is rotatably and slidably connected to the housing; A sliding sleeve is spline-connected to the rocker; There are a plurality of rotating wheels, all of which are rotatably connected inside the mounting shell. The towing rope is located between all the rotating wheels. The sliding sleeve is fixedly connected to one of the rotating wheels. A plurality of friction wheels are rotatably connected to the rotating wheel, and the friction wheels are in pressing contact with the towing rope.

[0012] As a further preferred solution, a first limiting ring is fixedly connected to the housing, and a second limiting ring is fixedly connected to the rocker. The first limiting ring is used for limiting the second limiting ring.

[0013] As a further preferred solution, tooth-shaped protrusions are provided on the opposite sides of the first limiting ring and the second limiting ring.

[0014] As a further preferred solution, it further includes an adsorbent. A reflux channel is provided in the outer shell. The reflux channel communicates with the absorption bladder. The adsorbent is installed on the outer shell and is located in the reflux channel. A second one-way valve is installed at the connection between the reflux channel and the absorption bladder.

[0015] As a further preferred solution, it further includes a transition ring and a plugging member. The transition ring is connected to the first conduit. The plugging member is slidably connected to the outer shell, and the plugging member is used to block the transition ring.

[0016] In the present invention, through the rotation of the cleaning member, the cleaning member gradually extends into the impurities, promotes the dispersion of the impurities, reduces the blocking area of the drainage tube, so that the drainage tube can work normally, and the drastic change of the pressure in the patient's body can be avoided during the process, thereby reducing the secondary injury to the patient; in the present invention, by periodically driving the reciprocating movement of the cleaning member, it scrapes the inner wall of the drainage tube, thereby cleaning the drainage tube; by using the spiral design of the cleaning member, it applies a driving force to the impurities and fixes the impurities that are not easily dispersed, facilitating the discharge of the impurities and ensuring the cleaning efficiency of the drainage tube; through the elastic setting of the cleaning member, during the movement in the drainage tube, it can conform to the change of the drainage tube and reduce the hard extrusion force on the drainage tube; by using the adsorbent to filter the flowing gas and adsorb harmful substances such as bacteria in the gas, it is avoided that the gas is directly discharged to the external environment and pollutes the air in the operating room or ward, thus reducing the risk of occupational exposure of medical staff and the probability of cross-infection of patients. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the second conduit and the installation shell of the present invention; Figure 3 It is a three-dimensional structural sectional view of the outer shell of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the reflux channel and the adsorbent of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the traction rope and the cleaning member of the present invention; Figure 6 It is a three-dimensional structural sectional view of the installation shell of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the first clamping block and the rotating ring of the present invention; Figure 8Schematic three-dimensional structure diagram of the rotating ring and the rocker of the present invention; Figure 9 Schematic three-dimensional structure diagram of the rocker and the first limiting ring of the present invention; Figure 10 Schematic three-dimensional structure diagram of the sliding sleeve and the rotating wheel of the present invention; Figure 11 Schematic three-dimensional structure diagram of the transition ring and the plugging member of the present invention.

[0018] The marks in the figure are: 1 - outer shell, 2 - absorption bladder, 3 - pressing plate, 4 - first conduit, 5 - second conduit, 6 - traction rope, 7 - cleaning member, 21 - mounting shell, 22 - winding member, 31 - first clamping block, 41 - rotating ring, 42 - second clamping block, 51 - rocker, 52 - sliding sleeve, 53 - rotating wheel, 54 - friction wheel, 61 - first limiting ring, 62 - second limiting ring, 71 - return channel, 72 - adsorbing member, 81 - transition ring, 82 - plugging member. Detailed implementation manners

[0019] The present invention will be further described below in conjunction with specific embodiments. It should also be noted that unless otherwise clearly specified and limited, terms such as: setting and installation should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment

[0020] This embodiment discloses a drainage device for gastrointestinal surgery, which is used to drain gas, liquid or solid contents (subsequently referred to as impurities) in the patient's gastrointestinal tract.

[0021] Combined with Figures 1 - 5As shown in the figure, it includes a housing 1; an absorption bladder 2 installed inside the housing 1. A pressing plate 3 is slidably connected inside the housing 1, and a first elastic member is provided between the two. The first elastic member is a tension spring for driving the pressing plate 3 to reset. The pressing plate 3 is fixedly connected to the absorption bladder 2; a first conduit 4 is fixedly connected and communicates with the absorption bladder 2, and a first one-way valve is installed therein. The first one-way valve can only discharge impurities in the first conduit 4 into the absorption bladder 2 and cannot allow impurities in the absorption bladder 2 to enter the first conduit 4. A second conduit 5 is fixedly connected inside the housing 1, and the second conduit 5 communicates with the first conduit 4. A drainage tube is fixedly connected and communicates with the second conduit 5, and the drainage tube is located outside the housing 1. The drainage tube is inserted into the patient's body and is connected to the second conduit 5. By pulling up the pressing plate 3, the gas in the absorption bladder 2 is discharged. Then, under the action of the first elastic member thereon, the pressing plate 3 drives the absorption bladder 2 to return to its original state, and a negative pressure is formed inside the absorption bladder 2. The absorption bladder 2 uses the negative pressure inside it to drain impurities from the patient's body through the first conduit 4, the second conduit 5, and the drainage tube. In this embodiment, a gas collection device is connected to the upper side of the absorption bladder 2 to absorb the gas discharged from the absorption bladder 2 and prevent the gas from diffusing into the external air.

[0022] The specific structures and connection relationships of each component are as follows: 1. The towing rope 6 and the cleaning member 7 Combined with Figures 1 - 5 As shown in the figure, the towing rope 6 is located inside the second conduit 5. The material of the towing rope 6 is steel wire rope (medical grade). The cleaning member 7 is located inside the drainage tube of the second conduit 5. The cleaning member 7 is fixedly connected to the towing rope 6. The cleaning member 7 is composed of a plurality of spiral parts and a plurality of straight connecting parts. The spiral parts and the straight connecting parts of the cleaning member 7 are staggered with each other. The spiral parts of the cleaning member 7 are used to guide the contacted impurities, which is beneficial to the discharge of impurities. The maximum diameter of the spiral parts of the cleaning member 7 is equal to the minimum inner diameter of the drainage tube; the cleaning member 7 has elasticity, so that the cleaning member 7 can bend under the action of elasticity; the drainage tube of the second conduit 5 is provided with an expansion cavity (such as Figure 5 ). When the drainage tube is working normally, the cleaning member 7 is located inside this expansion cavity to avoid hindering the drainage work. The expansion cavity of the drainage tube corresponds to the spiral parts of the cleaning member 7 one by one.

[0023] The above settings can achieve that after the drainage tube is blocked, the cleaning member 7 is moved to the blocked position of the drainage tube through the towing rope 6. By using the rotation and reciprocating movement of the cleaning member 7, the impurities accumulated in the drainage tube are guided to discharge the impurities. Due to the elasticity of the cleaning member 7, it is convenient for it to adapt to the bending situation of the drainage tube.

[0024] 2. The winding and rotating mechanism is arranged inside the housing 1 and is used for winding the towing rope 6 and driving the cleaning member 7 to rotate Combined with Figures 1 - 3 、 Figure 6 and Figure 7As shown in the figure, the winding rotation mechanism includes: a mounting shell 21, which is slidably connected to the outer shell 1. The mounting shell 21 is slidably connected to the towing rope 6, and a flexible sealing ring is provided at the sliding connection between the two (such as Figure 8 ), and the flexible sealing ring is used to prevent impurities flowing in the second conduit 5 from entering the mounting shell 21, and can also scrape the surface of the towing rope 6 to reduce the impurities adhering to it from entering the mounting shell 21; a winding member 22, which is rotatably connected to the mounting shell 21. The winding member 22 is fixedly connected to the other end of the towing rope 6. The winding member 22 is composed of a crank, a circular plate, a cylindrical barrel, a circular shell and circumferentially distributed L-shaped rods (such as Figure 6 ), where the L-shaped rods are located between the circular plate and the circular shell, the circular plate is located between the crank and the cylindrical barrel, and there is a gap between the L-shaped rods and the cylindrical barrel. The thickness of the gap is the same as the diameter of the towing rope 6, and the towing rope 6 is wound around the cylindrical barrel; a locking assembly, which is arranged on the mounting shell 21 and is used to fix the towing rope 6.

[0025] Combined with Figure 3 、 Figure 6 and Figure 7 shown in the figure, the outer shell 1 is slidably connected with a first clamping block 31, and a second elastic member is arranged between the two. The second elastic member is a spring and is used to drive the first clamping block 31 to reset to maintain the limit on the mounting shell 21 and the winding member 22. The first clamping block 31 penetrates the mounting shell 21. An inclined surface is arranged on the lower side of the first clamping block 31, and the inclined surface faces forward. Uniformly distributed protrusions are arranged on the upper side of the first clamping block 31. The first clamping block 31 is used to limit the mounting shell 21 and the winding member 22.

[0026] Combined with Figures 6 - 9 shown in the figure, the locking assembly includes: a rotating ring 41, which is rotatably connected in the mounting shell 21, and the towing rope 6 penetrates the rotating ring 41; a second clamping block 42, which is slidably connected to the rotating ring 41, and a third elastic member is arranged between the two. The third elastic member is a spring and is used to drive the second clamping block 42 to reset so that the second clamping block 42 does not contact the towing rope 6. The second clamping block 42 is slidably connected to the winding member 22, and the second clamping block 42 is used to fix the towing rope 6. In this embodiment, there are four second clamping blocks 42 evenly distributed circumferentially (such as Figure 9 ), the opposite sides of all the second clamping blocks 42 are set as rough surfaces to increase the friction force with the towing rope 6, the back sides of all the second clamping blocks 42 are set as inclined surfaces, and the inclined surfaces of the second clamping blocks 42 slide along the winding member 22. The winding member 22 can drive the rotating ring 41 to rotate through the second clamping blocks 42.

[0027] The above settings can achieve that when the cleaning part 7 is needed to clean the drainage tube, the winding part 22 is pressed backward. The winding part 22 squeezes all the second clamping blocks 42, and all the second clamping blocks 42 move towards each other and clamp the traction rope 6. At this time, the second clamping block 42 and the traction rope 6 cannot move relative to each other, and the traction rope 6 and the winding part 22 form a "whole". Then, by rotating the handle of the winding part 22, the winding part 22 drives the traction rope 6 to rotate synchronously through all the second clamping blocks 42, so as to achieve the purpose of guiding the impurities at the place to be cleaned.

[0028] After the cleaning is completed, the operator needs to perform the following steps in sequence: First, pull the first clamping block 31 upward to release the limit on the winding part 22; then, pull the winding part 22 forward to reset it. At this time, the second clamping block 42 is separated from the traction rope 6; finally, the operator rotates the winding part 22 to complete the winding of the traction rope 6.

[0029] 3. The driving mechanism is arranged in the housing 1 and is used to drive the traction rope 6 to move so that the cleaning part 7 moves to the place to be cleaned. Combined with Figure 2 and Figures 8 - 10 As shown, the driving mechanism includes: a rocker 51 which is rotatably and slidably connected to the housing 1; a sliding sleeve 52 which is spline-connected to the rocker 51 and is located inside the housing 1; two rotating wheels 53 which are symmetrically distributed and are both rotatably connected to the mounting shell 21. The rotating wheels 53 are located behind the rotating ring 41. The traction rope 6 is located between the symmetrically distributed rotating wheels 53. The sliding sleeve 52 is fixedly connected to one of the rotating wheels 53. A number of friction wheels 54 are rotatably connected to the rotating wheels 53. The friction wheels 54 are in pressing contact with the traction rope 6. The central axis of the friction wheel 54 and the central axis of the rotating wheel 53 are perpendicular skew lines. A rubber layer is arranged on the outer side of the friction wheel 54. By driving all the friction wheels 54 on it to rotate, the rotating wheel 53 enables the traction rope 6 to slide inside the second conduit 5, thereby driving the cleaning part 7 to move.

[0030] Combined with Figure 8 and Figure 9 As shown, the housing 1 is fixedly connected with a first limiting ring 61. The rocker 51 passes through the first limiting ring 61. The rocker 51 is fixedly connected with a second limiting ring 62. The first limiting ring 61 is used to limit the second limiting ring 62. By limiting the second limiting ring 62 through the first limiting ring 61, the rocker 51 cannot move, so that the traction rope 6 remains stable after moving to the target position; tooth-shaped protrusions are arranged on the opposite sides of the first limiting ring 61 and the second limiting ring 62, and the tooth-shaped protrusions are used to increase the contact area between the first limiting ring 61 and the second limiting ring 62.

[0031] The working process of the drainage device for gastrointestinal surgery in this embodiment is as follows: Drainage preparation: First, insert the cleaning piece 7 into the drainage tube of the second catheter 5 so that the spiral portion of the cleaning piece 7 corresponds one-to-one with the expansion cavity of the drainage tube. Then connect the second catheter 5 with the drainage tube and the cleaning piece 7 with the traction rope 6. Then insert the drainage tube into the patient's body. As the drainage tube is gradually inserted, stop moving the drainage tube until the end of the drainage tube moves to the patient's drainage site. At this time, the drainage preparation work is completed.

[0032] Drainage starts: The operator pulls the pressing plate 3 upward, and the pressing plate 3 squeezes the absorption capsule 2 (the first elastic part of the pressing plate 3 is stretched). The absorption capsule 2 is compressed and the gas inside is discharged into the external gas collection device. After moving the pressing plate 3 upward to the limit position (unable to move upward), the operator stops pulling the pressing plate 3 upward, and holds the pressing plate 3 to move it downward (the first elastic part of the pressing plate 3 gradually shortens), and the absorption capsule 2 gradually returns to its original shape. The absorption capsule 2 uses its own negative pressure to extract impurities through the first catheter 4, the second catheter 5 and the drainage tube. The impurities enter the absorption capsule 2 along the drainage tube, the second catheter 5 and the first catheter 4. As the pressing plate 3 moves downward, until the pressing plate 3 returns to its initial position, the single extraction of impurities is completed. The operator then repeats the above process to drain the impurities in the patient's body.

[0033] Drainage interruption: As the pressing plate 3 moves back and forth up and down, impurities gradually enter the absorption bag 2. In the process of the impurities passing through the drainage tube, the impurities will accumulate in the drainage tube, which will cause the drainage tube to be blocked. After the drainage tube is blocked, the pressing plate 3 continues to move up and down. At this time, negative pressure will be formed on the part of the drainage tube between the blocked part and the second conduit 5, causing the drainage tube in this part to be compressed and deflated. At the same time, the movement resistance of the pressing plate 3 will gradually increase. After the operator senses the abnormality, he stops moving the pressing plate 3 and stops the drainage operation.

[0034] After stopping the movement of the pressing plate 3, the operator starts to rotate the rocker 51 clockwise (in Figure 1 (The left view in the middle is taken as the standard). The rocker 51 drives the upper rotating wheel 53 to rotate through the sliding sleeve 52. The upper rotating wheel 53 drives all the friction wheels 54 thereon to rotate clockwise. The friction wheel 54 drives the traction rope 6 to move backward through its own friction force, and the traction rope 6 drives the cleaning member 7 to move.

[0035] During the movement of the cleaning member 7, the spiral portion of the cleaning member 7 scrapes the inner wall of the drainage tube, scraping off the impurities adhering to the inner wall of the drainage tube. As the cleaning member 7 gradually moves until it can no longer move, that is, when the cleaning member 7 moves to the blocked position, the operator stops rotating the rocker 51 and pushes the rocker 51 to move leftward, causing the rocker 51 and the sliding sleeve 52 to move relative to each other. The rocker 51 drives the second limit ring 62 to move until the second limit ring 62 contacts the first limit ring 61, then stops pushing the rocker 51. At this time, with the cooperation of the second limit ring 62 and the first limit ring 61, the rocker 51 cannot rotate freely, that is, the traction rope 6 will not displace.

[0036] After stopping the rotation of the rocker 51, the operator pushes the winding member 22 backward. The circular plate of the winding member 22 presses the first latch 31, and the first latch 31 moves upward and compresses its second elastic member until the circular plate of the winding member 22 passes the first latch 31. Then, the first latch 31 moves downward under the action of its second elastic member and limits the winding member 22. At this time, stop pushing the winding member 22.

[0037] During the backward movement of the winding member 22, the circular shell of the winding member 22 presses all the second latches 42, causing all the second latches 42 to move toward each other and compress the third elastic members thereon. Until the winding member 22 stops moving, all the second latches 42 clamp the traction rope 6. At this time, the traction rope 6 and the winding member 22 form a "whole".

[0038] After the second latch 42 clamps the traction rope 6, the operator rotates the winding member 22 clockwise. At this time, the winding member 22 drives the traction rope 6 to rotate synchronously through all the second latches 42. The traction rope 6 drives all the friction wheels 54 to rotate self - sufficiently, and the traction rope 6 drives the cleaning member 7 to rotate. During the rotation of the cleaning member 7, according to its own spiral design, the spiral portion at the end of the cleaning member 7 gradually extends into the impurities. Since the traction rope 6 cannot move, the spiral portion at the end of the cleaning member 7 is gradually stretched, prompting the impurities to disperse, causing the impurities to lose the blockage of the drainage tube. At the same time, during the rotation of the cleaning member 7, the spiral portion of the cleaning member 7 exerts a force to move the impurities forward, facilitating the movement of the impurities. As the cleaning member 7 rotates, until the drainage tube is no longer blocked, the pressure inside it returns to normal, and the drainage tube returns to its initial state. Then, the pressing plate 3 continues to move under the action of the first elastic member, and the impurities in the patient's body continue to flow into the absorption bladder 2 through the drainage tube, the second catheter 5, and the first catheter 4. The absorption bladder 2 continues to drain the impurities in the patient's body. At this time, the operator stops rotating the winding member 22.

[0039] Drainage continues: After stopping the rotation of the winding member 22, pull the rocker 51 to the right so that the second limiting ring 62 loses contact with the first limiting ring 61. Then, pull the first clamping block 31 upward (the second elastic member thereon is compressed) until the winding member 22 can pass through the first clamping block 31. After that, stop pulling the first clamping block 31 and pull the winding member 22 forward. After the circular plate of the winding member 22 passes through the first clamping block 31, release the first clamping block 31 and stop pulling the winding member 22.

[0040] After the winding member 22 moves forward, the circular shell of the winding member 22 loses the extrusion on all the second clamping blocks 42. The second clamping blocks 42 reset under the action of the third elastic member thereon and lose contact with the traction rope 6. Then, the operator rotates the winding member 22 clockwise again, and the winding member 22 starts to wind the traction rope 6. The traction rope 6 makes relative movement with all the friction wheels 54. During the process of winding the traction rope 6, the traction rope 6 drives the cleaning member 7 to move forward. When the spiral part of the cleaning member 7 moves into the expansion cavity of the corresponding drainage tube at the initial position, the operator stops rotating the winding member 22. During the movement of the cleaning member 7, it drives the impurities forward, and at the same time, the flowing impurities in the drainage tube also push the impurities at the blockage to move until all the impurities enter the absorption capsule 2, and then stop the cleaning operation of the drainage tube.

[0041] The above operations are mainly for the treatment process after the drainage tube is blocked. During the drainage operation on the patient, the operator regularly rotates the rocker 51 back and forth. The rocker 51 drives the traction rope 6 to move back and forth through the friction wheel 54. The traction rope 6 drives the cleaning member 7 to move back and forth. During the process, the inner wall of the drainage tube is scraped by the reciprocating movement of the spiral part of the cleaning member 7, so as to scrape off the impurities attached to the inside of the drainage tube, thus ensuring the normal use of the drainage tube.

[0042] Drainage completed: After the drainage of impurities in the patient's body is completed, the operator removes the absorption sac 2, replaces it, and removes the drainage tube from the patient's body, disconnects the second catheter 5 from the drainage tube, and disconnects the cleaning member 7 from the traction rope 6. Subsequently, the operator pulls up the first clamping block 31, and the first clamping block 31 moves upward and compresses the second elastic member thereon until the first clamping block 31 loses contact with the mounting shell 21, then stops pulling the first clamping block 31. At the same time, the operator pulls the winding member 22 forward, and the winding member 22 drives the mounting shell 21 to move synchronously. The winding member 22 drives the traction rope 6 to move synchronously until the traction rope 6 to be cleaned moves out of the housing 1. Then the operator cleans the cleaning member 7 and the traction rope 6. Since not all of the traction ropes 6 wound around the winding member 22 are involved in the dredging of the drainage tube, it is not necessary to clean all the traction ropes 6. After the cleaning is completed, repeat the above operations in reverse to install the mounting shell 21 into the housing 1, and the mounting shell 21 drives the winding member 22 and the traction rope 6 to enter the housing 1 synchronously to end the use of this device. At this time, the current drainage operation is completed. Embodiment

[0043] This embodiment discloses a drainage device for gastrointestinal surgery. On the basis of Embodiment 1, it also has the function of processing the gas discharged from the absorption sac 2, and replaces the waste gas recovery device in the above-mentioned Embodiment 1 through the following solution.

[0044] During the operation of the existing drainage device, the discharged gas needs the assistance of an external waste gas recovery device. At the same time, the waste gas recovery device (such as a gas collection bag, etc.) can only temporarily store the gas, and subsequent additional processing of the gas is required. This process is cumbersome, and during the gas transfer process, if the sealing work is not in place, gas leakage will occur, increasing the risk of infection.

[0045] Combined with Figures 2 - 4 as shown, it further includes a reflux channel 71 and an adsorbing member 72 1. Reflux channel 71 Combined with Figure 3 and Figure 4 as shown, the reflux channel 71 is arranged in the housing 1. The front side of the reflux channel 71 is communicated with the absorption sac 2, and the rear side of the reflux channel 71 is communicated with the outside. The reflux channel 71 is used to direct the gas discharged from the absorption sac 2 to the outside.

[0046] 2. Adsorbing member 72 Combined with Figure 2 and Figure 4As shown, the adsorbent 72 is detachably installed on the housing 1 and is located within the return channel 71. The adsorbent 72 contains adsorption particles such as activated carbon. The adsorbent 72 filters the gas flowing through the return channel 71, adsorbing particulate matter, bacteria, and other harmful substances in the gas, preventing the gas from being directly discharged to the external environment and polluting the air in the operating room or ward. This reduces the risk of occupational exposure for medical staff and the probability of cross-infection for patients. A second one-way valve is installed at the connection between the return channel 71 and the absorption bladder 2. This second one-way valve allows the gas in the absorption bladder 2 to enter the return channel 71, but does not allow the gas in the return channel 71 to flow back into the absorption bladder 2. The operator can regularly replace the adsorbent 72 to ensure the gas filtration effect.

[0047] 3. Transition ring 81 and sealing member 82 Combined Figures 2 - 4 with Figure 11 As shown, the transition ring 81 is located in the middle of the first catheter 4, truncates the first catheter 4, and is connected to the first catheter 4. The sealing member 82 is slidably connected to the housing 1 and slides on the transition ring 81 to block the transition ring 81, thus blocking the first catheter 4 and adjusting the flow area of the first catheter 4 to control the flow rate of impurities therein. A flexible membrane (such as Figure 11 ) is provided between the sealing member 82 and the transition ring 81. This flexible membrane is used to seal the sliding connection between the sealing member 82 and the transition ring 81 to prevent impurities flowing through the transition ring 81 from escaping.

[0048] The above settings can achieve: When performing gastrointestinal drainage on a patient, the operator appropriately adjusts the position of the sealing member 82 according to the patient's physical condition, so that the sealing member 82 blocks the flow surface of the transition ring 81, changes the flow area of the sealing member 82, and thus adjusts the flow rate of impurities in the first catheter 4, enabling the impurities to be discharged at a speed suitable for the patient and reducing the patient's discomfort.

[0049] Finally, it should be noted that: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A drainage device for gastrointestinal surgery, comprising a housing (1), an absorption sac (2) is installed inside the housing (1), a pressing plate (3) is slidably connected inside the housing (1), and a first elastic member is arranged between the two. The pressing plate (3) is fixedly connected to the absorption sac (2). The absorption sac (2) is fixedly connected and communicated with a first catheter (4), a first one-way valve is installed inside the first catheter (4), a second catheter (5) is fixedly connected inside the housing (1), the second catheter (5) is communicated with the first catheter (4), and the second catheter (5) is fixedly connected and communicated with a drainage tube located outside the housing (1). It is characterized in that, Also included are: A traction rope (6) is arranged in the housing (1) and is located in the second conduit (5); one end of the traction rope (6) is fixedly connected to a cleaning member (7); the cleaning member (7) is located in the drainage tube of the second conduit (5); A reeling and rotating mechanism is provided in the housing (1) and is used to reel in the traction rope (6) and drive the cleaning member (7) to rotate; A driving mechanism is provided in the housing (1) and is used to drive the traction rope (6) to move, so that the cleaning member (7) moves to the location to be cleaned, and the cleaning member (7) rotates in the second conduit (5), thereby cleaning the impurities in the second conduit (5).

2. The drainage device for gastrointestinal surgery according to claim 1, characterized in that, The cleaning piece (7) is elastic and consists of a plurality of interlaced spiral portions and a plurality of straight connection portions. The drainage tube of the second catheter (5) is provided with a plurality of expansion cavities, and the expansion cavities of the drainage tube correspond one to one with the spiral portions of the cleaning piece (7).

3. The drainage device for gastrointestinal surgery according to claim 1, characterized in that, The winding and rotating mechanism comprises: A mounting shell (21) is slidably connected to the outer shell (1), and the mounting shell (21) is slidably connected to the traction rope (6); A winding member (22) is rotatably connected to the mounting shell (21), and the winding member (22) is fixedly connected to the other end of the traction rope (6); A locking assembly is provided on the mounting shell (21) and is used to fix the traction rope (6).

4. A drainage device for gastrointestinal surgery according to claim 3, characterized in that, The housing (1) is slidably connected to a first clamping block (31), and a second elastic member is provided between the two. The first clamping block (31) passes through the mounting housing (21), and the first clamping block (31) is used to limit the winding member (22) of the mounting housing (21).

5. A drainage device for gastrointestinal surgery according to claim 4, characterized in that, The locking assembly comprises: A rotating ring (41) is rotatably connected to the mounting shell (21), and the traction rope (6) passes through the rotating ring (41); The second clamping block (42) is slidably connected to the rotating ring (41), and a third elastic member is provided between the two. The second clamping block (42) is slidably connected to the winding member (22). The second clamping block (42) is used to fix the traction rope (6).

6. The drainage device for gastrointestinal surgery according to claim 5, characterized in that, The driving mechanism comprises: A rocker (51) is rotatably and slidably connected to the housing (1); A sliding sleeve (52) spline-connected to the rocker (51); There are a plurality of rotating wheels (53), all of which are rotatably connected to the mounting shell (21), the traction rope (6) is located between all the rotating wheels (53), the sliding sleeve (52) is fixedly connected to one of the rotating wheels (53), and a plurality of friction wheels (54) are rotatably connected to the rotating wheels (53), and the friction wheels (54) are in extrusion contact with the traction rope (6).

7. The drainage device for gastrointestinal surgery according to claim 6, characterized in that, The housing (1) is fixedly connected to a first limiting ring (61), the rocker (51) is fixedly connected to a second limiting ring (62), and the first limiting ring (61) is used to limit the second limiting ring (62).

8. A drainage device for gastrointestinal surgery according to claim 7, characterized in that, The first limiting ring (61) and the second limiting ring (62) are both provided with tooth-shaped protrusions on the opposite sides.

9. A drainage device for gastrointestinal surgery according to claim 1, characterized in that, It further includes an adsorbing member (72). A reflux channel (71) is provided in the outer shell (1). The reflux channel (71) is communicated with the absorption bladder (2). The adsorbing member (72) is installed on the outer shell (1) and is located in the reflux channel (71). A second one-way valve is installed at the connection between the reflux channel (71) and the absorption bladder (2).

10. A drainage device for gastrointestinal surgery according to claim 1, characterized in that, It further includes a transition ring (81) and a blocking member (82). The transition ring (81) is communicated with the first conduit (4). The blocking member (82) is slidably connected to the outer shell (1). The blocking member (82) is used to block the transition ring (81).

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