Flushing device for ECMO reverse infusion tube

Abstract

The invention discloses a flushing device for an ECMO reverse infusion tube, and relates to the technical field of ECMO reverse infusion tubes. The flushing device for the ECMO reverse infusion pipe comprises a water tank, the top of the water tank is rotationally connected with a treatment bin, and the outer wall of the water tank is fixedly connected with an impact mechanism. According to the flushing device for the ECMO reverse infusion pipe, through the synergistic effect of the impacting mechanism and the flushing mechanism, the reverse infusion pipe can be flushed in all directions and at multiple angles, the motor drives the treatment bin to rotate, water flow is impacted, meanwhile, the flushing mechanism can flush cleaning liquid in the water tank into the treatment bin through the zigzag pipe, and the flushing effect is good. The double-flushing mode effectively removes impurities such as residual blood and medicine in the reverse infusion tube, the cleanliness of the reverse infusion tube is guaranteed, potential risks caused by residual impurities are reduced, and measures of disassembling the reverse infusion tube as soon as possible, closing the two ends of the reverse infusion tube and emptying most blood in the reverse infusion tube are taken before cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of ECMO reverse perfusion tubes, and in particular to a flushing device for ECMO reverse perfusion tubes. Background Art

[0002] ECMO (Extracorporeal Membrane Oxygenation) reverse perfusion tube is a key component in the ECMO system. Structurally, it is generally made of special medical polymer materials with good biocompatibility and corrosion resistance. This kind of tube can withstand a certain pressure to ensure that it will not break during the perfusion process. In terms of function, the reverse perfusion tube is mainly used in specific medical situations, such as when there is an emergency such as intravascular thrombosis or embolism, to reversely perfuse oxygenated and regulated blood into the patient's body, providing temporary blood supply and oxygen support for important organs, buying precious time for subsequent treatment, and playing a vital role in supporting the patient's life; The patent application with publication number CN219423416U discloses a flushing device for an ECMO reverse perfusion tube, comprising a positive pressure liquid bag and a flushing tube, wherein the bottom of the positive pressure liquid bag is connected to an infusion tube, and a push switch is arranged on the infusion tube; a backwashing ball is arranged in a communication manner in the middle of the flushing tube; the bottom end of the flushing tube extends to the interior of the backwashing ball, and an elastic sealing sheet that can be opened downward is arranged obliquely at its port, and a filter for filtering thrombus is arranged in the backwashing ball; an exhaust hole is opened at the top of the backwashing ball so as to communicate with the atmosphere, and a membrane flap that only allows gas to pass through is laid in the exhaust hole; When the reverse perfusion tube is removed from the ECMO device, some blood in the reverse perfusion tube will form thrombus. Once the thrombus breaks off, it will enter the blood vessels of important organs in the body, such as the lungs and brain, through blood circulation, causing serious complications such as pulmonary embolism and cerebral embolism. During the ECMO treatment, various drugs, such as anticoagulants and vasoactive drugs, will be injected into the tube. After the treatment, these drugs may remain in the reverse perfusion tube. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a flushing device for an ECMO reverse perfusion tube to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a flushing device for an ECMO reverse perfusion tube, comprising a water tank, the top of which is rotatably connected to a processing chamber, and the outer wall of which is fixedly connected to an impact mechanism. Before cleaning, the reverse perfusion tube should be removed from the ECMO device as soon as possible, and both ends should be sealed to prevent external pollutants from entering. At the same time, the blood remaining in the tube should be emptied as much as possible. Most of the blood can be initially removed by gently squeezing the tube or using gravity to let the blood flow out naturally, and then the reverse perfusion tube is placed horizontally into the processing chamber; The impact mechanism comprises: The motor is fixedly connected to the outer wall of the water tank, and the motor is rotatably connected to the processing chamber. The synergistic effect of the impact mechanism and the flushing mechanism can flush the reverse perfusion pipe in all directions and at multiple angles. The motor drives the processing chamber to rotate, so that the water flow produces impact. At the same time, the flushing mechanism can flush the cleaning liquid in the water tank into the processing chamber through the zigzag pipe. The double flushing method effectively removes impurities such as blood and drugs remaining in the reverse perfusion pipe, ensures the cleanliness of the reverse perfusion pipe, and reduces the potential risks caused by residual impurities; The insertion hole is provided at the top of the processing chamber. When the processing chamber is tilted toward one side, the cleaning liquid flows toward the side of the processing chamber, and then squeezes the guide plate. During the squeezing process of the guide plate, the elasticity of the first spring is pulled. Then, when the processing chamber is tilted toward the other side, the elasticity of the first spring drives the guide plate to reset, thereby pushing the water flow to flush the reverse perfusion pipe. A guide assembly is fixedly connected to the inner wall of the processing chamber.

[0005] Preferably, the water tank and the processing chamber are rotatably connected via a bearing.

[0006] Preferably, a bracket is fixedly connected between the outer wall of the motor and the outer wall of the water tank, and the zigzag tube is arranged between the processing chamber and the extrusion chamber. The telescopic machine is powered on and started to drive the extrusion plate in the extrusion chamber to move. When the extrusion plate moves out of the extrusion chamber, the cleaning liquid in the water tank will enter the extrusion chamber, and then the extrusion of the extrusion plate in the extrusion chamber will drive the cleaning liquid through the zigzag tube and the placement hole into the processing chamber, and then impact the reverse perfusion tube.

[0007] Preferably, the guide assembly includes a first spring, two first springs are fixedly connected to the inner sides of the processing chamber, and the outer walls of the first springs are fixedly connected to guide plates. Before cleaning, the reverse perfusion tube is disassembled as soon as possible and both ends are sealed, and most of the blood in the tube is emptied. Combined with the subsequent efficient flushing process, the probability of thrombosis in the tube can be minimized to the greatest extent, and the formed thrombus can be effectively prevented from falling off. This plays a key role in avoiding serious complications such as pulmonary embolism and cerebral embolism caused by thrombus entering the blood vessels of important organs in the body, thereby ensuring the life, health and safety of patients.

[0008] Preferably, a filling and flushing mechanism is fixedly connected to the inner wall of the water tank.

[0009] Preferably, the filling and flushing mechanism includes a telescopic machine, which is fixedly connected to the inner wall of the water tank, and the inner wall of the water tank is also fixedly connected to an extrusion bin, and the outer wall of the telescopic machine is movably connected to an extrusion plate, and the extrusion plate is inserted in the extrusion bin, and a tortuous tube is fixedly connected between the extrusion bin and the processing bin, and the inner wall of the tortuous tube is fixedly connected to an auxiliary component, and the auxiliary component in the filling and flushing mechanism is provided with a filter plate. During the circulation of the cleaning liquid, the filter plate can filter the cleaning liquid to ensure that the cleaning liquid entering the processing bin always remains in a relatively clean state, avoiding impurities from accumulating in the cleaning liquid and contaminating the reverse filling tube again. At the same time, the movement of the extrusion plate can realize the suction and re-injection of the cleaning liquid, thereby improving the utilization rate of the cleaning liquid and reducing the cleaning cost and waste of resources.

[0010] Preferably, the auxiliary component includes a placement hole, and when the filter plate descends and pulls the second spring, it will drive the zigzag water spray pipe to shrink downward, guiding the water flow in the processing chamber, and then when the water flow is in the zigzag pipe and flows toward the processing chamber, it will squeeze the zigzag water spray pipe to rise, and when the extrusion plate is squeezed toward the extrusion chamber, the cleaning liquid enters the processing chamber after being filtered by the filter plate, and then when the extrusion plate moves toward the outside of the extrusion chamber, the cleaning liquid in the processing chamber will be sucked through the extrusion chamber and the zigzag pipe, and then the cleaning liquid will impact the filter plate when it flows, thereby causing the filter plate to descend and pull the second spring, and when the extrusion plate moves to the external position of the extrusion chamber, the cleaning liquid in the extrusion chamber flows out into the water tank, and the subsequent extrusion plate is squeezed again, and the elasticity of the second spring pulls through The filter plate is reset, so that the filter plate filters the cleaning liquid again. A placement hole is opened at the bottom of the processing bin at the position of the zigzag pipe. The inner wall of the placement hole is fixedly connected with a zigzag water spray pipe. The bottom of the zigzag water spray pipe is fixedly connected with a filter plate. The first spring and the guide plate in the guide assembly, and the zigzag water spray pipe and the second spring in the auxiliary assembly can flexibly guide the direction and strength of the water flow according to the rotation of the processing bin and the movement of the extrusion plate. When the processing bin rotates, the guide plate pushes the water flow to flush the reverse perfusion pipe under the action of the spring. When the extrusion plate works, the zigzag water spray pipe contracts and rises under the action of the spring, which further optimizes the flow state of the water flow in the processing bin, makes the flushing effect more uniform and thorough, and improves the cleaning quality and efficiency of the reverse perfusion pipe.

[0011] Preferably, the zigzag water spray pipe is fixedly connected to the filter plate via a second spring.

[0012] The present invention provides a flushing device for an ECMO reverse perfusion tube. It has the following beneficial effects: 1. The flushing device for the ECMO reverse perfusion tube can perform all-round and multi-angle flushing of the reverse perfusion tube through the synergistic effect of the impact mechanism and the flushing mechanism. The motor drives the processing chamber to rotate, causing the water flow to impact. At the same time, the flushing mechanism can flush the cleaning liquid in the water tank into the processing chamber through the zigzag tube. The double flushing method effectively removes impurities such as blood and drugs remaining in the reverse perfusion tube, ensures the cleanliness of the reverse perfusion tube, and reduces the potential risks caused by residual impurities.

[0013] 2. The flushing device for the ECMO reverse perfusion tube can minimize the chance of thrombosis in the tube and effectively prevent the detachment of the formed thrombus by dismantling the reverse perfusion tube as soon as possible and sealing both ends before cleaning, as well as emptying most of the blood in the tube. This is combined with a subsequent efficient flushing process. This plays a key role in avoiding serious complications such as pulmonary embolism and cerebral embolism caused by thrombus entering the blood vessels of important organs in the body, thereby ensuring the life, health and safety of patients.

[0014] 3. The flushing device for the ECMO reverse perfusion tube is provided with a filter plate through the auxiliary components in the flushing mechanism. During the circulation of the cleaning liquid, the filter plate can filter the cleaning liquid to ensure that the cleaning liquid entering the processing chamber always remains in a relatively clean state, avoiding the accumulation of impurities in the cleaning liquid and re-contaminating the reverse perfusion tube. At the same time, the movement of the extrusion plate can realize the suction and re-injection of the cleaning liquid, thereby improving the utilization rate of the cleaning liquid and reducing the cleaning cost and waste of resources.

[0015] 4. The flushing device for the ECMO reverse perfusion tube can flexibly guide the direction and strength of the water flow according to the rotation of the processing chamber and the movement of the extrusion plate through the first spring and the guide plate in the guide assembly, and the zigzag water spray pipe and the second spring in the auxiliary assembly. When the processing chamber rotates, the guide plate pushes the water flow to flush the reverse perfusion tube under the action of the spring. When the extrusion plate works, the zigzag water spray pipe contracts and rises under the action of the spring, further optimizing the flow state of the water flow in the processing chamber, making the flushing effect more uniform and thorough, and improving the cleaning quality and efficiency of the reverse perfusion tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the axial side stereoscopic structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure; Figure 3 It is a schematic diagram of the back three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the partial structure of the guide plate of the present invention; Figure 5 It is a schematic diagram of the local structure of the motor of the present invention; Figure 6 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle part A; Figure 7 It is a schematic diagram of the local structure of the telescopic machine of the present invention; Figure 8 It is a schematic diagram of the local structure of the filter plate of the present invention.

[0017] In the figure: 1. water tank; 2. processing chamber; 3. bearing; 4. impact mechanism; 41. motor; 42. bracket; 43. insertion hole; 44. guide assembly; 441. guide plate; 442. first spring; 5. filling and flushing mechanism; 51. extrusion chamber; 52. extrusion plate; 53. telescopic machine; 54. zigzag pipe; 55. auxiliary assembly; 551. filter plate; 552. second spring; 553. zigzag water spray pipe; 554. placement hole. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] For example, see Figure 1-5 The present invention provides a technical solution: a flushing device for an ECMO reverse perfusion tube, comprising a water tank 1, a processing chamber 2 is rotatably connected to the top of the water tank 1, and an impact mechanism 4 is fixedly connected to the outer wall of the water tank 1; Combined with Figure 1 As shown, before cleaning, the reverse perfusion tube should be removed from the ECMO device as soon as possible, and both ends should be sealed to prevent external contaminants from entering. At the same time, the blood remaining in the tube should be emptied as much as possible. Most of the blood can be initially removed by gently squeezing the tube or using gravity to let the blood flow out naturally, and then the reverse perfusion tube should be placed horizontally into the processing chamber 2; Add an appropriate amount of cleaning liquid into the water tank 1 in advance; The impact mechanism 4 comprises: A motor 41, the motor 41 is fixedly connected to the outer wall of the water tank 1, and the motor 41 is rotatably connected to the processing chamber 2; The placing hole 43 is opened at the top of the processing chamber 2; The guide assembly 44 is fixedly connected to the inner wall of the processing chamber 2 .

[0021] The water tank 1 and the processing chamber 2 are rotatably connected via a bearing 3 .

[0022] A bracket 42 is fixedly connected between the outer wall of the motor 41 and the outer wall of the water tank 1; Combined with Figure 2 and attached Figure 3 As shown, the processing chamber 2 is arranged at the top position of the water tank 1 through the bearing 3, and the motor 41 is powered on to start and drive the rotation of the processing chamber 2. A control chip is set in the motor 41, which controls the processing chamber 2 to rotate thirty degrees clockwise, and then rotate thirty degrees counterclockwise, thereby driving the processing chamber 2 to rotate left and right. When there is water in the processing chamber 2, the processing chamber 2 drives the flow of water to impact the reverse perfusion pipe, thereby cleaning the reverse perfusion pipe.

[0023] The guide assembly 44 includes a first spring 442. Two first springs 442 are fixedly connected to the inner sides of the processing chamber 2. The outer walls of the first springs 442 are fixedly connected to guide plates 441. Combined with Figure 4 As shown, when the processing chamber 2 is tilted toward one side, the cleaning liquid flows toward the side of the processing chamber 2, and then squeezes the guide plate 441. The elasticity of the first spring 442 is pulled during the squeezing of the guide plate 441. Then, when the processing chamber 2 is tilted toward the other side, the elasticity of the first spring 442 drives the guide plate 441 to reset, thereby pushing the water flow to flush the reverse perfusion pipe.

[0024] For example 2, please refer to Figure 1-8 Based on the first embodiment, the present invention provides a technical solution: The inner wall of the water tank 1 is fixedly connected with a filling and flushing mechanism 5 .

[0025] The filling and flushing mechanism 5 includes a telescopic machine 53, which is fixedly connected to the inner wall of the water tank 1, and the inner wall of the water tank 1 is also fixedly connected to the extrusion chamber 51, and the outer wall of the telescopic machine 53 is movably connected to the extrusion plate 52, and the extrusion plate 52 is inserted in the extrusion chamber 51, and a zigzag pipe 54 is fixedly connected between the extrusion chamber 51 and the processing chamber 2, and the inner wall of the zigzag pipe 54 is fixedly connected to the auxiliary component 55; Combined with Figure 5 and attached Figure 6 As shown, the zigzag tube 54 is arranged between the processing chamber 2 and the extrusion chamber 51, and the telescopic machine 53 is powered on to drive the extrusion plate 52 to move in the extrusion chamber 51. When the extrusion plate 52 moves out of the extrusion chamber 51, the cleaning liquid in the water tank 1 will enter the extrusion chamber 51, and then the extrusion of the extrusion plate 52 in the extrusion chamber 51 will drive the cleaning liquid to pass through the zigzag tube 54 and the placement hole 554 into the processing chamber 2, and then impact the reverse perfusion tube.

[0026] The auxiliary component 55 includes a placement hole 554. A placement hole 554 is opened at the bottom of the processing chamber 2 at the position of the zigzag pipe 54. The inner wall of the placement hole 554 is fixedly connected to a zigzag water spray pipe 553. The bottom of the zigzag water spray pipe 553 is fixedly connected to a filter plate 551.

[0027] The zigzag water spray pipe 553 is fixedly connected to the filter plate 551 via a second spring 552; Combined with Figure 7 and attached Figure 8As shown, when the squeezing plate 52 is squeezed toward the squeezing chamber 51, the cleaning liquid is filtered by the filter plate 551 and then enters the processing chamber 2. Then, when the squeezing plate 52 moves toward the outside of the squeezing chamber 51, the cleaning liquid in the processing chamber 2 is sucked through the squeezing chamber 51 and the zigzag tube 54. Then, when the cleaning liquid flows, it impacts the filter plate 551, thereby causing the filter plate 551 to drop and pull the second spring 552. When the squeezing plate 52 moves to the outer position of the squeezing chamber 51, the cleaning liquid in the squeezing chamber 51 flows out into the water tank 1. Subsequently, the squeezing plate 52 is squeezed again. At this time, the elasticity of the second spring 552 pulls the filter plate 551 to reset, thereby causing the filter plate 551 to filter the cleaning liquid again. When the filter plate 551 descends and pulls the second spring 552, it will drive the zigzag spray pipe 553 to shrink downward, guide the water flow in the processing chamber 2, and then when the water flow is located in the zigzag pipe 54 and flows toward the processing chamber 2, it will squeeze the zigzag spray pipe 553 upward.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flushing device for an ECMO reverse perfusion tube, comprising a water tank (1), characterized in that: The top of the water tank (1) is rotatably connected to a processing chamber (2), and the outer wall of the water tank (1) is fixedly connected to an impact mechanism (4); The impact mechanism (4) comprises: A motor (41), the motor (41) being fixedly connected to the outer wall of the water tank (1), and the motor (41) being rotationally connected to the processing chamber (2); An insertion hole (43), wherein the insertion hole (43) is opened at the top of the processing chamber (2); A guide assembly (44), wherein the guide assembly (44) is fixedly connected to an inner wall of the processing chamber (2).

2. A flushing device for an ECMO reverse perfusion tube according to claim 1, characterized in that: The water tank (1) and the processing chamber (2) are rotatably connected via a bearing (3).

3. A flushing device for an ECMO reverse perfusion tube according to claim 2, characterized in that: A bracket (42) is fixedly connected between the outer wall of the motor (41) and the outer wall of the water tank (1).

4. A flushing device for an ECMO reverse perfusion tube according to claim 3, characterized in that: The guide assembly (44) comprises a first spring (442), two first springs (442) are fixedly connected to the inner sides of the processing chamber (2), and the outer walls of the first springs (442) are fixedly connected to guide plates (441).

5. A flushing device for an ECMO reverse perfusion tube according to claim 4, characterized in that: A flushing mechanism (5) is fixedly connected to the inner wall of the water tank (1).

6. A flushing device for an ECMO reverse perfusion tube according to claim 5, characterized in that: The irrigation mechanism (5) comprises a telescopic machine (53), the telescopic machine (53) being fixedly connected to the inner wall of the water tank (1), the inner wall of the water tank (1) being also fixedly connected to a squeezing bin (51), the outer wall of the telescopic machine (53) being movably connected to a squeezing plate (52), the squeezing plate (52) being inserted into the squeezing bin (51), a zigzag tube (54) being fixedly connected between the squeezing bin (51) and the processing bin (2), the inner wall of the zigzag tube (54) being fixedly connected to an auxiliary component (55).

7. A flushing device for an ECMO reverse perfusion tube according to claim 6, characterized in that: The auxiliary component (55) comprises a placement hole (554); the bottom of the processing chamber (2) is provided with a placement hole (554) at the position of the zigzag pipe (54); the inner wall of the placement hole (554) is fixedly connected to a zigzag water spray pipe (553); the bottom of the zigzag water spray pipe (553) is fixedly connected to a filter plate (551).

8. A flushing device for an ECMO reverse perfusion tube according to claim 7, characterized in that: The zigzag water spray pipe (553) and the filter plate (551) are fixedly connected via a second spring (552).

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