Diabetic foot infected wound flushing device

Abstract

The invention belongs to the technical field of diabetic foot flushing, and particularly relates to a diabetic foot infected wound flushing device which comprises a collecting tank, the collecting tank is hollow, the hollow portion of the collecting tank is communicated with an external negative pressure machine through an air pipe, and the hollow portion of the collecting tank is fixedly communicated with a binding bag through an air pipe; the binding bag is fixedly communicated with a connecting pipe, the top end of the connecting pipe is fixedly communicated with an infusion pipe, the top end of the infusion pipe is fixedly communicated with a timing pipe, the top end of the timing pipe is fixedly communicated with a filter, and the top end of the filter is communicated with an infusion bag through the infusion pipe. Stable negative pressure generated by the negative pressure machine in the binding bag is used as core power, full-automatic starting, stopping and circulation of flushing are achieved, and the negative pressure is not only used for extracting flushing waste liquid and providing a negative pressure treatment environment for a wound surface, but also can drive a timing switch of the electromagnetic switch and drive the spiral blade to move in the infusion tube.

Description

Technical Field

[0001] This invention belongs to the field of diabetic foot irrigation technology, specifically referring to an irrigation device for diabetic foot infected wounds. Background Technology

[0002] Diabetic foot ulcers are a serious complication of diabetes, often accompanied by infection, necrotic tissue, and inflammatory exudate. Currently, thorough and continuous irrigation and debridement of the wound are crucial steps in controlling infection and promoting healing in clinical treatment. To achieve effective debridement, traditional Chinese medicine agents with blood-activating, stasis-removing, necrotic tissue-regenerating, and tissue-regenerating effects are often added to the irrigation solution. However, the effective particulate components in such solutions are prone to sedimentation during static or slow flow, leading to uneven concentrations of the solution reaching the wound and severely affecting the treatment outcome.

[0003] Currently, the irrigation devices commonly used in clinical practice are mostly continuously or simply manually controlled during the irrigation process, which can easily lead to maceration of wound tissue, deposition of Chinese medicine particles causing blockage of the infusion tube, and failure to automatically protect when the medicine is exhausted or the pressure is abnormal, posing a risk of excessive suction damage to the wound. Summary of the Invention

[0004] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a device for rinsing infected diabetic foot wounds. This application utilizes a stable negative pressure generated by a negative pressure generator as a unified driving source. Through the electronic control of a trigger component and a timer, it achieves an automatic and precise cycle of rinsing-intermittent periods. This solves the technical problems in existing technologies where the rinsing process relies on manual operation, making precise rhythm control difficult and leading to wound maceration or incomplete cleaning. The negative pressure drives a sliding mechanism within the connecting pipe, and through the cooperation of a spiral guide groove and a guide block, the opening and closing of the pipeline and the rotation and cleaning of the spiral blades occur synchronously. This solves the technical problem in existing technologies where the added traditional Chinese medicine solution easily deposits, causing blockage of the infusion tube. Continuous monitoring of the system pressure via a pressure valve, interlocked with the negative pressure generator, enables automatic and safe shutdown in case of emptying of the solution or abnormalities, solving the technical problem of excessive suction damage to the wound in existing technologies.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention proposes a diabetic foot infection wound irrigation device, including a collection tank, the collection tank being hollow, the hollow part of the collection tank being connected to an external negative pressure machine through an air pipe, the hollow part of the collection tank being fixedly connected to a restraint bag through the air pipe, the restraint bag being fixedly connected to a connecting tube, the top end of the connecting tube being fixedly connected to an infusion tube, the top end of the infusion tube being fixedly connected to a timing tube, the top end of the timing tube being fixedly connected to a filter, and the top end of the filter being connected to an infusion bag through the infusion tube.

[0006] Preferably, the liquid flow-off stirring assembly includes a sliding plate that is slidably and sealingly connected to the upper part of the circumferential wall of the connecting pipe. A guide post is coaxially and fixedly connected to the bottom end of the inner circumferential wall of the connecting pipe. The sliding plate is movably sleeved on the guide post. A guide sleeve is coaxially and rotatably connected to the top wall of the sliding plate. The guide sleeve is movably sleeved on the guide post. A spiral guide groove is provided on the circumferential wall of the guide post. A guide block is fixedly connected to the inner circumferential wall of the guide sleeve. The guide block is movably embedded in the spiral guide groove. A guide spring is sleeved on the guide post. The two ends of the guide spring are fixedly connected to the bottom wall of the sliding plate and the bottom end of the connecting pipe, respectively.

[0007] Preferably, an electromagnetic switch is coaxially fixedly connected to the top of the inner circumferential wall of the timing tube, a sealing ring is coaxially fixedly connected to the inner circumferential wall of the timing tube, and a trigger assembly is coaxially connected to the bottom of the timing tube. The trigger assembly is electrically connected to the timer and controls the timer to start cyclically. The timer is electrically connected to the electromagnetic switch. The trigger assembly includes a guide rod fixedly connected to the bottom wall of the timing tube and a movable plate that is longitudinally and slidably connected to the inner circumferential wall of the sealing ring. The movable plate is slidably sleeved on the guide rod. A movable spring is fixedly connected between the bottom wall of the movable plate and the bottom wall of the timing tube. The movable spring is sleeved on the guide rod. A first switch is fixedly connected to the inner circumferential wall of the sealing ring, and a second switch is fixedly connected to the bottom wall of the timing tube. The first switch and the second switch are respectively electrically connected to the timer.

[0008] Preferably, a movable ring is coaxially and movably connected to the top of the inner circumferential wall of the infusion tube, and a spiral blade is provided inside the infusion tube. The two ends of the spiral blade are fixedly connected to the top wall of the guide sleeve and the bottom wall of the movable ring, respectively.

[0009] Preferably, a pressure valve is fixedly connected to the top wall of the collection tank, and the pressure valve is electrically connected to an external negative pressure machine.

[0010] In a preferred embodiment of the present invention, the liquid flow-off stirring assembly includes a movable column slidably connected coaxially to the bottom end of a connecting pipe, a movable seat fixedly connected coaxially to the top end of the movable column, the movable seat being hollow, a rotating plate being rotatably and coaxially sealed to the top end of the movable seat, the outer circumferential wall of the rotating plate being slidably and sealed to the top end of the inner circumferential wall of the connecting pipe, a rotary motor being fixedly and coaxially connected to the bottom wall of the movable seat, the output end of the rotary motor being fixedly and coaxially connected to the bottom wall of the rotating plate, the top wall of the rotating plate being fixedly connected to one end of a spiral blade, a return spring being sleeved on the movable column, the two ends of the return spring being fixedly connected to the bottom wall of the movable seat and the bottom end of the connecting pipe respectively, and a start switch being fixedly connected to the bottom end of the connecting pipe, the start switch being electrically connected to the rotary motor.

[0011] The beneficial effects achieved by the present invention using the above structure are as follows: 1. This application utilizes the stable negative pressure generated in the restraint bag by the negative pressure machine as the core power to realize the fully automatic start-stop and cycle of irrigation. This negative pressure is not only used to extract irrigation waste liquid and provide a negative pressure treatment environment for the wound, but also to drive the timer switch of the electromagnetic switch and drive the spiral blade to move in the infusion tube, realizing an automated intermittent working cycle of negative pressure establishment-pipeline connection-timed irrigation-negative pressure pause. 2. The sliding plate and guide sleeve are driven by negative pressure difference to move on the guide column with spiral guide groove. When negative pressure is established, the sliding plate moves down to open the passage. The guide sleeve realizes the rotation and stirring of the spiral blade through the cooperation of the guide block and the spiral guide groove, which cleans the inner wall of the infusion tube. The Chinese medicine particles scraped off during the next flush are discharged with the medicine liquid, avoiding the deposition of Chinese medicine particles. 3. By utilizing the pressure difference between the two sides of the moving plate in the trigger component, the moving plate moves and contacts the second switch, which turns the timer on and off. When the moving plate contacts the first switch, the timer starts counting down, thus realizing intelligent timing control of the rinsing process and accurately controlling the duration of rinsing and intermittent rinsing. 4. Taking advantage of the continuous decrease in pressure after the medication is drained, the pressure inside the collection tank is monitored by a pressure valve. The electromagnetic switch is turned on, and the first switch remains triggered. Since no new liquid flows in, the pressure inside the collection tank continues to drop. When the pressure is lower than the minimum pressure value set by the pressure valve, the pressure valve controls the external negative pressure machine to stop running, so as to avoid damage to the patient's wound from high negative pressure. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the invention and do not constitute a limitation thereof.

[0013] Figure 1 This is a schematic diagram of the overall structure of a diabetic foot infection wound irrigation device proposed in this invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the irrigation device for diabetic foot infection proposed in this invention; Figure 3 This is a schematic cross-sectional view of the connection between the connecting tube and the timing tube of the irrigation device for diabetic foot infection wounds proposed in this invention. Figure 4 This is a schematic cross-sectional view of the timer tube connection of a diabetic foot infection wound irrigation device proposed in this invention; Figure 5 This is a schematic cross-sectional view of the connecting pipe of a diabetic foot infection wound irrigation device proposed in this invention; Figure 6 This is a schematic diagram of the connection structure of the connecting pipe of the irrigation device for diabetic foot infection wounds proposed in this invention from another perspective; Figure 7 This is a schematic cross-sectional view of the connecting pipe in Embodiment 2 of the irrigation device for diabetic foot infection proposed in this invention.

[0014] In the attached diagram: 1. Collection tank; 2. Restraint bag; 3. Connecting tube; 4. Infusion tube; 5. Timing tube; 6. Filter; 7. Infusion bag; 11. Pressure valve; 31. Guide column; 32. Guide sleeve; 33. Sliding plate; 311. Spiral guide groove; 321. Guide block; 322. Guide spring; 35. Moving column; 36. Moving seat; 37. Rotating plate; 38. Start switch; 39. Rotary motor; 351. Return spring; 41. Moving ring; 42. Spiral blade; 51. Electromagnetic switch; 52. Timer; 53. Trigger assembly; 54. Sealing ring; 531. Guide rod; 532. Moving plate; 533. Moving spring; 534. First switch; 535. Second switch.

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] Example 1, as Figures 1-6 This solution proposes a device for rinsing infected diabetic foot wounds, including a collection tank 1, which is hollow. The hollow part of the collection tank 1 is connected to an external negative pressure unit via an air tube. A restraint bag 2 is fixedly connected to the hollow part of the collection tank 1 via the air tube. The restraint bag 2 can be fitted onto the patient's diseased foot and forms a sealed state. A cavity is formed between the hollow part of the restraint bag 2 and the patient's diseased foot. The negative pressure unit can use the collection tank 1 to draw a vacuum into the cavity between the hollow part of the restraint bag 2 and the patient's diseased foot. A connecting tube 3 is fixedly connected to the restraint bag 2. An infusion tube 4 is fixedly connected to the top of the connecting tube 3. A timer tube 5 is fixedly connected to the top of the infusion tube 4. A filter 6 is fixedly connected to the top of the timer tube 5. An infusion bag 7 is connected to the top of the filter 6 via the infusion tube 4. The connecting pipe 3 is equipped with a liquid inlet / outlet stirring assembly, and the bottom dimension of the connecting pipe 3 is larger than the top dimension. An electromagnetic switch 51 is coaxially fixedly connected to the top of the inner circumferential wall of the timing tube 5. The electromagnetic switch 51 is initially in the open state. A sealing ring 54 is coaxially fixedly connected to the inner circumferential wall of the timing tube 5. A trigger component 53 is coaxially connected to the bottom of the timing tube 5. The trigger component 53 is electrically connected to the timer 52. The trigger component 53 controls the timer 52 to start cyclically. The timer 52 is electrically connected to the electromagnetic switch 51. The timer 52 controls the opening and closing of the electromagnetic switch 51.

[0018] like Figures 1-4 As shown, the triggering component 53 includes a guide rod 531 fixedly connected to the bottom wall of the timer tube 5 and a movable plate 532 longitudinally and slidably connected to the inner circumferential wall of the sealing ring 54. The movable plate 532 is slidably sleeved on the guide rod 531. A movable spring 533 is fixedly connected between the bottom wall of the movable plate 532 and the inner bottom wall of the timer tube 5. The movable spring 533 is sleeved on the guide rod 531. A first switch 534 is fixedly connected to the inner circumferential wall of the sealing ring 54. A second switch 535 is fixedly connected to the inner bottom wall of the timer tube 5. The movable plate 532 is located between the first switch 534 and the second switch 535. In its initial state, the movable spring 533 pushes the movable plate 532 closer to the first switch 534. The first switch 534 and the second switch 535 are electrically connected to the timer 52. The first switch 534 is used to trigger the start timing of the timer 52, and the second switch 535 is used to trigger the stop timing of the timer 52. The restraint bag 2 is covered by an external... When the negative pressure machine draws out negative pressure, the pressure above the moving plate 532 is greater than the pressure below the moving plate 532. The moving plate 532 is close to the second switch 535 on the guide rod 531 and compresses the moving spring 533. When the moving plate 532 is below the sealing ring 54, the Chinese medicine in the infusion bag 7 enters the timing tube 5 through the filter 6 and the electromagnetic switch 51, flows through the connecting tube 3 into the restraint bag 2, and washes the patient's affected foot. Subsequently, the waste liquid is sucked into the collection tank 1. At the same time, the moving plate 532 contacts the second switch 535, and the timer 52 starts and stops timing. When the timer 52 stops timing, the timer 52 controls the electromagnetic switch 51 to close, and the pressure on both sides of the moving plate 532 gradually tends to balance. The moving spring 533 returns to its original position, causing the moving plate 532 to contact the first switch 534, and the timer 52 starts timing. When the timer 52 stops timing, the timer 52 controls the electromagnetic switch 51 to open, intermittently washing the patient's affected foot.

[0019] like Figures 1-3 and Figures 5-6As shown, the liquid flow-off stirring assembly includes a sliding plate 33 that is slidably and sealingly connected to the upper part of the circumferential wall of the connecting pipe 3. A guide post 31 is coaxially and fixedly connected to the bottom end of the inner circumferential wall of the connecting pipe 3. The sliding plate 33 is movably sleeved on the guide post 31. A guide sleeve 32 is coaxially and rotatably connected to the top wall of the sliding plate 33. The guide sleeve 32 is movably sleeved on the guide post 31. A spiral guide groove 311 is provided on the circumferential wall of the guide post 31. A guide block 321 is fixedly connected to the inner circumferential wall of the guide sleeve 32. The guide block 321 is movably embedded in the spiral guide groove 311. A guide spring 322 is sleeved on the guide post 31. The two ends of the guide spring 322 are fixedly connected to the bottom wall of the sliding plate 33 and the bottom end of the connecting pipe 3, respectively. In its initial state, the guide spring 322 drives the sliding plate 33 to approach the middle of the connecting tube 3. When the traditional Chinese medicine in the infusion bag 7 enters the timing tube 5 through the filter 6 and the electromagnetic switch 51, and at the same time the restraint bladder 2 is drawn into negative pressure by the external negative pressure machine, the pressure above the sliding plate 33 is greater than the pressure below the sliding plate 33. The sliding plate 33 drives the guide sleeve 32 to approach the bottom end of the connecting tube 3. The guide sleeve 32 rotates on the spiral guide groove 311 through the guide block 321. The guide sleeve 32 rotates on the sliding plate 33. When the sliding plate 33 approaches the bottom end of the connecting tube 3, the size of the bottom end of the connecting tube 3 is larger than the size of the sliding plate 33. The restraint bladder 2 is connected to the hollow part of the infusion tube 4 through the hollow part of the connecting tube 3, and the sliding plate 33 stops moving.

[0020] like Figures 1-3 and Figures 5-6 As shown, a movable ring 41 is coaxially and movably connected to the top of the inner circumferential wall of the infusion tube 4. The infusion tube 4 is provided with a spiral blade 42. The two ends of the spiral blade 42 are fixedly connected to the top wall of the guide sleeve 32 and the bottom wall of the movable ring 41, respectively. When the guide sleeve 32 rotates on the sliding plate 33, the guide sleeve 32 drives the spiral blade 42 and the movable ring 41 to rotate. The guide sleeve 32 also drives the spiral blade 42 and the movable ring 41 to move, cleaning the inner wall of the infusion tube 4 and preventing the deposition of particulate matter in the traditional Chinese medicine.

[0021] like Figures 1-4 As shown, a pressure valve 11 is fixedly connected to the top wall of the collection tank 1. The pressure valve 11 is electrically connected to an external negative pressure machine. When the electromagnetic switch 51 is closed, the pressure in the collection tank 1 continues to decrease. When the pressure value in the collection tank 1 is lower than the minimum pressure value set by the pressure valve 11, the external negative pressure machine stops. When the pressure value in the collection tank 1 is higher than the maximum pressure value set by the pressure valve 11, the external negative pressure machine starts.

[0022] The specific working process of this embodiment is as follows: The device is placed in a suitable position, and the restraint bag 2 is put on the patient's diseased foot. At this time, the hollow part of the restraint bag 2 and the patient's diseased foot form a closed cavity. The filter 6 is connected to the infusion bag 7 through the infusion tube 4, and the collection tank 1 is connected to the external negative pressure machine. When it is necessary to rinse the patient's affected foot, the external negative pressure machine is activated, drawing negative pressure into the collection tank 1 and simultaneously drawing negative pressure into the cavity between the hollow part of the restraint bladder 2 and the patient's affected foot. The pressure above the sliding plate 33 is greater than the pressure below the sliding plate 33. The sliding plate 33 drives the guide sleeve 32 to approach the bottom end of the connecting tube 3. The guide sleeve 32 drives the spiral blade 42 and the moving ring 41 to move, compressing the guide spring 322. The guide block 321 moves on the spiral guide groove 311. The guide block 321 drives the guide sleeve 32 to move along the guide of the spiral guide groove 311 while rotating on the top wall of the sliding plate 33. The guide sleeve 32 drives the spiral blade 42 and the moving ring 41 to rotate, cleaning the inner wall of the infusion tube 4. As the sliding plate 33 approaches the bottom end of the connecting tube 3, the size of the bottom end of the connecting tube 3 is larger than the size of the sliding plate 33. The restraint bladder 2 is connected to the hollow part of the infusion tube 4 through the hollow part of the connecting tube 3, and the sliding plate 33 stops moving. When the restraint bag 2, connecting tube 3, and infusion tube 4 are connected, the electromagnetic switch 51 is in the open state. The pressure above the moving plate 532 is greater than the pressure below the moving plate 532. The pressure pushes the moving plate 532 to move within the sealing ring 54. At the same time, the moving plate 532 moves on the guide rod 531 and compresses the moving spring 533. The moving plate 532 stops contacting the first switch 534. When the moving plate 532 is below the sealing ring 54, it contacts the second switch 535. The timer 52 starts timing, and the moving plate 532 stops moving. The traditional Chinese medicine in the infusion bag 7 enters the timing tube 5 through the filter 6 and the electromagnetic switch 51, and enters the restraint bag 2 through the connecting tube 3. The traditional Chinese medicine washes the patient's foot, and the waste liquid after washing is drawn into the collection tank 1. When timer 52 stops counting, timer 52 controls electromagnetic switch 51 to close, the pressure on both sides of moving plate 532 gradually becomes balanced, moving spring 533 resets, moving spring 533 drives moving plate 532 away from second switch 535 and drives moving plate 532 to contact first switch 534. At this time, timer 52 starts counting, and at the same time, the pressure on both sides of sliding plate 33 gradually becomes balanced, guide spring 322 resets, guide spring 322 drives sliding plate 33 to reset, sliding plate 33 drives guide sleeve 32 and guide block 321 to reset, guide block 321 drives guide sleeve 32 to reset along spiral guide groove 311, drives guide sleeve 32 to rotate in the opposite direction on top wall of sliding plate 33, guide sleeve 32 drives spiral blade 42 and moving ring 41 to rotate in the opposite direction, and at the same time drives spiral blade 42 and moving ring 41 to reset, cleaning the inner wall of infusion tube 4; When timer 52 starts and ends, timer 52 controls electromagnetic switch 51 to start again, intermittently rinsing the patient's affected foot; When the liquid in the infusion bag 7 is drained, even if the electromagnetic switch 51 is turned on, no medicine will flow down. At this time, the pressure of the moving plate 532 is balanced, and it remains in contact with the first switch 534 under the action of the moving spring 533, and cannot move down to trigger the second switch 535. At the same time, since no new liquid flows in, the pressure in the collection tank 1 continues to drop. When the pressure is lower than the minimum pressure value set by the pressure valve 11, the pressure valve 11 controls the external negative pressure machine to stop running.

[0023] Example 2: This example is based on Example 1, the difference being that the internal structure of the connecting pipe 3 in this example differs from that in Example 1. Please refer to [link / reference]. Figures 1-7 In this embodiment, the liquid flow-off stirring assembly includes a movable column 35 that is slidably connected coaxially to the bottom end of the connecting pipe 3. A movable seat 36 is coaxially fixedly connected to the top end of the movable column 35. The movable seat 36 is hollow. A rotating plate 37 is coaxially and rotatably connected to the top end of the movable seat 36. The outer circumferential wall of the rotating plate 37 is slidably and sealed to the top end of the inner circumferential wall of the connecting pipe 3. The bottom wall of the rotating plate 37 and the hollow part of the movable seat 36 form a sealed cavity. A rotary motor 39 is coaxially fixedly connected to the bottom wall of the movable seat 36. The output end of the rotary motor 39 is coaxially fixedly connected to the bottom wall of the rotating plate 37. The top wall of the rotating plate 37 is connected to one end of the spiral blade 42. A fixed connection is made, and a return spring 351 is sleeved on the moving column 35. The two ends of the return spring 351 are fixedly connected to the bottom wall of the moving seat 36 and the bottom end of the connecting tube 3, respectively. A start switch 38 is fixedly connected to the bottom end of the connecting tube 3. The start switch 38 is located below the moving seat 36. The start switch 38 is electrically connected to the rotary motor 39. When the moving seat 36 contacts the start switch 38, the start switch 38 controls the rotary motor 39 to start. At the same time, the rotating plate 37 approaches the bottom end of the connecting tube 3. The bottom end of the connecting tube 3 is larger than the size of the rotating plate 37. The restraint bag 2 is connected to the hollow part of the infusion tube 4 through the hollow part of the connecting tube 3. The rotating plate 37 stops moving.

[0024] In this embodiment, when rinsing the patient's foot, the pressure above the rotating plate 37 is greater than the pressure below the rotating plate 37. The rotating plate 37 drives the movable seat 36 to approach the start switch 38. The rotating plate 37 also drives the spiral blade 42 and the movable ring 41 to move, compressing the return spring 351. When the rotating plate 37 approaches the bottom end of the connecting tube 3, since the size of the bottom end of the connecting tube 3 is larger than the size of the top end, the restraint bag 2 is connected to the hollow part of the infusion tube 4 through the hollow part of the connecting tube 3. The rotating plate 37 stops moving, and at the same time, the movable seat 36 touches the start switch 38. The start switch 38 controls the rotating motor 39 to start. The rotating motor 39 drives the rotating plate 37 to rotate, and the rotating plate 37 drives the spiral blade 42 and the movable ring 41 to rotate to clean the inner wall of the infusion tube 4. When the patient's foot is no longer rinsed, the electromagnetic switch 51 is turned off, the movable plate 532 is reset, the pressure on both sides of the rotating plate 37 tends to be balanced, the reset spring 351 drives the movable seat 36 and the rotating plate 37 to reset, the movable seat 36 stops contacting the start switch 38, the start switch 38 controls the rotating motor 39 to stop, and the rotating motor 39 stops driving the rotating plate 37 to rotate.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for washing the wound of diabetic foot infection, comprising a collecting tank (1), the collecting tank (1) is hollow, the hollow part of the collecting tank (1) is communicated with an external negative pressure machine through an air pipe, the hollow part of the collecting tank (1) is fixedly communicated with a restraint bag (2) through an air pipe, characterized in that: The binding bag (2) is fixedly connected with a connecting pipe (3), the top end of the connecting pipe (3) is fixedly connected with a transfusion pipe (4), the top end of the transfusion pipe (4) is fixedly connected with a timing pipe (5), the top end of the timing pipe (5) is fixedly connected with a filter (6), and the top end of the filter (6) is connected with a transfusion bag (7) through the transfusion pipe (4); The connecting pipe (3) is provided with a transfusion on-off stirring assembly; The top end of the inner circumferential wall of the timing pipe (5) is coaxially fixedly connected with an electromagnetic switch (51), the bottom end of the timing pipe (5) is coaxially connected with a trigger assembly (53), the trigger assembly (53) is electrically connected with a timer (52), the trigger assembly (53) controls the timer (52) to be cyclically started, and the timer (52) is electrically connected with the electromagnetic switch (51).

2. The device for washing the infected surface of the diabetic foot according to claim 1, characterized in that: The transfusion on-off stirring assembly comprises a sliding plate (33) which is sealingly and slidably connected to the upper part of the circumferential wall of the connecting pipe (3), the bottom end of the inner circumferential wall of the connecting pipe (3) is coaxially fixedly connected with a guide column (31), the sliding plate (33) is movably sleeved on the guide column (31), the top wall of the sliding plate (33) is coaxially and rotatably connected with a guide sleeve (32), the guide sleeve (32) is movably sleeved on the guide column (31), the circumferential wall of the guide column (31) is provided with a spiral guide groove (311), the inner circumferential wall of the guide sleeve (32) is fixedly connected with a guide block (321), the guide block (321) is movably embedded in the spiral guide groove (311), and the sliding plate (33) is initially close to the middle part of the connecting pipe (3).

3. The device as claimed in claim 1, wherein: The transfusion on-off stirring assembly comprises a moving column (35) which is coaxially and slidably connected to the bottom end of the connecting pipe (3), the top end of the moving column (35) is coaxially fixedly connected with a moving seat (36), the moving seat (36) is provided with a hollow structure, the top end of the moving seat (36) is coaxially and airtightly rotatably connected with a rotating plate (37), the bottom wall of the rotating plate (37) is coaxially fixedly connected with a rotating motor (39), the output end of the rotating motor (39) is coaxially fixedly connected with the bottom wall of the rotating plate (37), the bottom end of the connecting pipe (3) is fixedly connected with a starting switch (38), the starting switch (38) is electrically connected with the rotating motor (39), and the rotating motor (39) is started when the moving seat (36) contacts the starting switch (38).

4. The device as claimed in claim 1, wherein: The inner circumferential wall of the timing pipe (5) is coaxially fixedly connected with a sealing ring (54), the trigger assembly (53) comprises a guide rod (531) fixedly connected to the inner bottom wall of the timing pipe (5) and a moving plate (532) in longitudinal sealing sliding connection with the inner circumferential wall of the sealing ring (54), the inner circumferential wall of the sealing ring (54) is fixedly connected with a first switch (534), the inner bottom wall of the timing pipe (5) is fixedly connected with a second switch (535), the moving plate (532) is located between the first switch (534) and the second switch (535), the first switch (534) and the second switch (535) are electrically connected with the timer (52), the first switch (534) is used for triggering the start timing of the timer (52), and the second switch (535) is used for triggering the stop timing of the timer (52).

5. The device as claimed in claim 2, wherein: The inner circumferential wall of the infusion pipe (4) is coaxially movably connected with a moving ring (41), the infusion pipe (4) is provided with a spiral blade (42), and the spiral blade (42) is fixedly connected with the top wall of the guide sleeve (32) and the bottom wall of the moving ring (41) at two ends, respectively.

6. The device as claimed in claim 3, wherein: The inner circumferential wall of the infusion pipe (4) is coaxially movably connected with a moving ring (41), the infusion pipe (4) is provided with a spiral blade (42), and the spiral blade (42) is fixedly connected with the top wall of the guide sleeve (32) and the bottom wall of the moving ring (41) at two ends, respectively.

7. The device as claimed in claim 1, wherein: The inner top wall of the collecting tank (1) is fixedly connected with a pressure valve (11), and the pressure valve (11) is electrically connected with an external negative pressure machine.

8. The device as claimed in claim 4, wherein: When the timer (52) stops timing, the electromagnetic switch (51) is closed, and when the timer (52) starts timing, the electromagnetic switch (51) is opened.

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