Infection-preventing negative pressure drainage device used after parastomal hernia repair

Abstract

The anti-infection negative pressure drainage device comprises an outer cover, the lower portions of the two sides of the outer cover are fixedly connected with a base through supporting blocks respectively, a certain gap is formed between the base and the outer cover, and the middles of the two sides in the outer cover of the base are fixedly connected with fixing rings through connecting blocks respectively; the fixing ring is fixed to the middle of the inner wall of the upper side of the outer cover, and a flow guiding assembly is arranged in the outer cover and used for guiding flow. The invention relates to the technical field of drainage, in particular to an anti-infection negative pressure drainage device used after parastomal herniorrhaphy, which is characterized in that a plugging assembly is arranged, so that a drainage tube can be automatically extruded and sealed when a liquid collection bag or a liquid accumulation bottle is replaced; the flow guide assembly is of a structure that an eccentrically-installed rotating wheel is matched with an extrusion rod, when a stepping motor drives a rotating shaft to rotate, the extrusion rod can periodically extrude a drainage pipe, and active flow guide is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage, in particular to an infection-preventing negative pressure drainage device after parastomal hernia repair. Background Art

[0002] After parastomal hernia repair, negative pressure drainage is a common postoperative treatment method to promote wound healing and prevent infection caused by fluid accumulation. Existing negative pressure drainage devices have many problems during use. For example, when replacing the fluid collection bag or fluid collection bottle, the drainage tube is in an open state, which can easily lead to the invasion of external bacteria and cause wound infection; the drainage process often relies on natural negative pressure, and the drainage efficiency is low, which cannot meet clinical needs; and there is a lack of real-time monitoring and intelligent adjustment of the drainage pressure. When the pressure in the drainage tube is abnormal, effective measures cannot be taken in time, which may affect the patient's postoperative recovery and even cause secondary damage. Therefore, there is an urgent need for a negative pressure drainage device that can effectively prevent infection, improve drainage efficiency and has intelligent control functions. Summary of the Invention

[0003] The present invention provides a negative pressure drainage device for preventing infection after parastomal hernia repair surgery. The present invention provides a sealing component, which can automatically squeeze and seal the drainage tube when replacing the fluid collection bag or the fluid collection bottle, thereby preventing liquid leakage and the entry of external bacteria, greatly reducing the risk of postoperative infection, and ensuring the safety and hygiene of the patient's postoperative recovery; the diversion component adopts a structure in which an eccentrically installed runner and an extrusion rod are matched. When the stepping motor drives the rotating shaft to rotate, the extrusion rod can periodically squeeze the drainage tube to achieve active diversion. Compared with the traditional drainage method that relies on natural negative pressure, the drainage efficiency is significantly improved.

[0004] A negative pressure drainage device for preventing infection after parastomal hernia repair, comprising an outer cover, wherein lower portions of both sides of the outer cover are fixedly connected to a base via support blocks, a certain gap is defined between the base and the outer cover, and the middle portions of both sides of the inner cover of the base are fixedly connected to fixing rings via connecting blocks, the fixing rings being fixed to the middle of the upper inner wall of the outer cover, a flow guide assembly being provided in the outer cover, the flow guide assembly being used for diverting flow, a limiting ring being provided at one end of the outer cover, a tube being able to pass through the gap between the base and the outer cover and the limiting ring, and the flow guide assembly being provided on the upper side of the tube;

[0005] A blocking component is also provided, which is connected to the diversion component and is used to squeeze the tube to seal the squeezed part when replacing the fluid collection bag or the fluid collection bottle.

[0006] As a further limitation of the present technical solution, the guide assembly includes a rotating shaft, a moving ring, an extrusion rod and a rotating wheel. The two ends of the outer cover are respectively rotatably connected to the rotating shaft. The central axis of the rotating shaft is fixedly connected to the eccentric points of a group of evenly arranged rotating wheels. The rotating wheel is fixed in the moving ring. The lower side of the moving ring is fixedly connected to the extrusion rod. The lower end of the extrusion rod is arc-shaped and made of rubber. The rotating wheel is separated by the fixed ring. The upper arc surface of the rotating wheel in the first direction gradually decreases. The first direction is from the fixed ring to away from the fixed ring. One end of the rotating shaft is fixedly connected to the motor, and the motor fixes the outer cover. The other end of the rotating shaft is connected to the sealing assembly.

[0007] As a further limitation of the present technical solution, the motor is a stepping motor.

[0008] As a further limitation of the present technical solution, the blocking assembly includes a ratchet, a limit plate, a ratchet, a toggle tooth, a return spring, an extrusion block, a first connecting rod, a second connecting rod and a fixed rod, one end of the limit plate is fixed to the lower part of the other end of the outer cover, the other end of the limit plate is passed through the extrusion block, one side of the upper end of the pressurizing fastener is rotated to connect one end of the first connecting rod, the other end of the first connecting rod is rotated to connect one end of the second connecting rod, the other end of the second connecting rod is rotated to connect one end of the fixed rod, the fixed rod is L-shaped, the other end of the fixed rod is fixedly connected to the outer cover, the other end of the second connecting rod is fixedly connected to one end of the ratchet, the ratchet matches the toggle tooth of the ratchet, the toggle tooth is fixed to the inner ring of the ratchet, the center of the ratchet is fixedly connected to the other end of the rotating shaft, and the ratchet is fixedly connected to the fixed rod through the return spring.

[0009] As a further limitation of the present technical solution, the height of the limiting plate is the same as the height of the supporting block.

[0010] As a further limitation of the present technical solution, it also includes a pressure detection module, which is arranged at the end of the tube connected to the human body. The pressure detection module is a pressure sensor, which detects the pressure in the tube in real time. The pressure sensor and the controller transmit data. The controller is electrically connected to the motor. When the pressure sensed by the pressure sensor exceeds the maximum value of the set threshold, the controller controls the motor to start, push the liquid flow and accelerate it into the liquid collection bag or liquid collection bottle.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] By setting up a sealing component, the drainage tube can be automatically squeezed and sealed when the fluid collection bag or fluid collection bottle is replaced, preventing liquid leakage and external bacteria from entering, greatly reducing the risk of postoperative infection and ensuring the safety and hygiene of the patient's postoperative recovery;

[0013] The diversion assembly uses an eccentrically mounted rotor and an extrusion rod. When the stepper motor drives the shaft to rotate, the extrusion rod can periodically squeeze the drainage tube to achieve active diversion. Compared with the traditional drainage method that relies on natural negative pressure, it significantly improves the drainage efficiency.

[0014] The pressure detection module monitors the pressure in the drainage tube in real time. When the pressure exceeds the set threshold value, the controller automatically controls the motor to start and accelerate liquid drainage to avoid discomfort to the patient or affect the drainage effect due to excessive pressure. It realizes intelligent control of the drainage process and improves the safety and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of this application and constitute a part of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation on this application. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the drawings:

[0016] Figure 1 The present invention is a three-dimensional Figure 1 ;

[0017] Figure 2 It is a partial three-dimensional cutaway view of the present invention;

[0018] Figure 3 The present invention is a three-dimensional Figure 2 ;

[0019] Figure 4 For the present invention Figure 3 A partial enlarged view of point A in the middle;

[0020] Figure 5 The present invention is a three-dimensional Figure 3 .

[0021] In the figure: 1. Outer cover; 2. Motor; 3. Tube; 4. Limiting ring; 5. Base; 6. Moving ring; 7. Extrusion rod; 8. Connecting block; 9. Fixed ring; 10. Rotating wheel; 11. Ratchet; 12. Limiting plate; 13. Extrusion block; 14. First connecting rod; 15. Second connecting rod; 16. Fixed rod; 17. Ratchet; 18. Toggle tooth; 19. Rotating shaft; 20. Support block; 21. Return spring. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-Figure 5 The present invention is further described with reference to the accompanying drawings and embodiments.

[0023] The specific embodiments of the present invention are:

[0024] A postoperative infection-preventing negative pressure drainage device for parastomal hernia repair comprises an outer cover 1, wherein the lower portions of both sides of the outer cover 1 are fixedly connected to a base 5 via support blocks 20, with a certain gap between the base 5 and the outer cover 1. The middle portions of both sides of the inner side of the outer cover 1 are fixedly connected to a fixing ring 9 via connecting blocks 8, and the fixing ring 9 is fixed to the middle of the upper inner wall of the outer cover 1. A flow guide assembly is provided in the outer cover 1 for guiding flow. A limiting ring 4 is provided at one end of the outer cover 1, and a tube 3 can pass through the gap between the base 5 and the outer cover 1 and the limiting ring 4. The flow guide assembly is provided on the upper side of the tube 3.

[0025] A blocking component is also provided, which is connected to the diversion component and is used to squeeze the tube 3 to seal the squeezed portion when replacing the liquid collection bag or the liquid collection bottle.

[0026] In this embodiment, the outer cover 1 is fixed to the base 5 by the support block 20 to form a structure with a gap. The fixing ring 9 is fixed in the outer cover 1 by the connecting block 8 and is used to fix the middle position of the upper inner wall of the outer cover 1. The diversion component is arranged in the outer cover 1 to divert the liquid. The tube 3 passes through the gap between the base 5 and the outer cover 1 and the limiting ring 4. The diversion component is located on the upper side of the tube 3. The sealing component is connected to the diversion component. When replacing the liquid collection bag or the liquid collection bottle, the squeezed part is closed by squeezing the tube 3. The gap between the base 5 and the outer cover 1 is designed to provide a channel for the passage of the tube 3. The diversion component realizes the diversion function of the liquid. The limiting ring 4 limits the tube 3. The sealing component can close the tube 3 when replacing the liquid collection device to prevent liquid leakage and external bacteria from entering, reduce the risk of infection, and ensure the safety and hygiene of the device.

[0027] The guide assembly includes a rotating shaft 19, a moving ring 6, an extrusion rod 7 and a runner 10. The two ends of the outer cover 1 are respectively rotatably connected to the rotating shaft 19. The central axis of the rotating shaft 19 is fixedly connected to the eccentric point of a group of evenly arranged runners 10. The runner 10 is fixed in the moving ring 6. The lower side of the moving ring 6 is fixedly connected to the extrusion rod 7. The lower end of the extrusion rod 7 is arc-shaped, and the lower end of the extrusion rod 7 is made of rubber. The runner 10 is separated by the fixed ring 9. The upper side arc surface of the runner 10 in the first direction gradually decreases. The first direction is from the fixed ring 9 to away from the fixed ring 9. One end of the rotating shaft 19 is fixedly connected to the motor 2, the motor 2 fixes the outer cover 1, and the other end of the rotating shaft 19 is connected to the blocking assembly.

[0028] In this embodiment, in the diversion assembly, the two ends of the outer cover 1 are rotatably connected to the rotating shaft 19, the central axis of the rotating shaft 19 is fixed at the eccentric point of the runner 10, and the runner 10 is fixed in the movable ring 6. The lower side of the movable ring 6 is connected to the extrusion rod 7. The lower end of the extrusion rod 7 is an arc-shaped rubber material, separated by the fixed ring 9. The upper arc surface of the runner 10 in the first direction gradually decreases, and the motor 2 drives the rotating shaft 19 to rotate, so that the runner 10 rotates, and then drives the movable ring 6 and the extrusion rod 7 to move, squeezes the tube 3 to promote the flow of liquid, and the stepper motor 2 drives the rotating shaft 19 and the runner 10 to rotate. Since the runner 10 is eccentrically installed, the rotating ring 6 will move up and down when rotating, and the extrusion rod 7 will periodically squeeze the tube 3 to promote the flow of liquid in the tube 3, thereby realizing active diversion, improving drainage efficiency, and ensuring that the liquid can flow smoothly to the liquid collection bag or liquid accumulation bottle.

[0029] The motor 2 is a stepper motor 2 .

[0030] The blocking assembly includes a ratchet 11, a limit plate 12, a ratchet 17, a toggle tooth 18, a return spring 21, an extrusion block 13, a first connecting rod 14, a second connecting rod 15 and a fixed rod 16. One end of the limit plate 12 is fixed to the lower part of the other end of the outer cover 1, and the other end of the limit plate 12 is passed through the extrusion block 13. One side of the upper end of the pressurized fast rod is rotated to connect one end of the first connecting rod 14, and the other end of the first connecting rod 14 is rotated to connect one end of the second connecting rod 15. The other end of the second connecting rod 15 is rotated to connect one end of the fixed rod 16. The fixed rod 16 is L-shaped, and the other end of the fixed rod 16 is fixedly connected to the outer cover 1. The other end of the second connecting rod 15 is fixedly connected to one end of the ratchet 17. The ratchet 17 matches the toggle tooth 18 of the ratchet 11. The toggle tooth 18 is fixed to the inner ring of the ratchet 11. The center of the ratchet 11 is fixedly connected to the other end of the rotating shaft 19. The ratchet 17 is fixedly connected to the fixed rod 16 through the return spring 21.

[0031] In this embodiment, in the blocking assembly, the limit plate 12 is fixed to the lower part of the outer cover 1, the extrusion block 13 passes through the limit plate 12, the first connecting rod 14, the second connecting rod 15 and the fixed rod 16 form a connecting rod mechanism, the ratchet 17 is connected to the fixed rod 16 through the return spring 21 and matches the toggle tooth 18 of the ratchet 11, the ratchet 11 is fixed on the rotating shaft 19, when the motor 2 drives the rotating shaft 19 to rotate forward, the rotating shaft 19 drives the ratchet 11 to rotate forward, the toggle tooth 18 of the ratchet 11 is not limited by the ratchet 17 and can follow the ratchet 11 to rotate, and the ratchet 11 will not be stuck by the ratchet 17. At this time, the rotating shaft 19 can drive the diversion assembly to work, and the rotating shaft 19 is driven by the motor 2 to rotate in the opposite direction. When the rotating shaft 19 rotates, the ratchet 11 drives the toggle tooth 18 to rotate in the opposite direction, pushing the ratchet 17 to move, and the squeezing block 13 is moved through the connecting rod mechanism to squeeze the tube 3. When the liquid collecting device is replaced, the rotating shaft 19 rotates to drive the sealing assembly to work, and the squeezing block 13 squeezes the tube 3 to seal it to prevent liquid leakage and external contamination. After the replacement is completed, the output shaft of the motor 2 rotates forward to drive the rotating shaft 19 and the ratchet 11 to rotate, and the toggle tooth 18 of the ratchet 11 no longer presses the ratchet 17. The reset spring 21 enables the ratchet 17 to reset, realizing the normal diversion function, ensuring the repeated use of the sealing assembly, and being able to automatically seal the tube 3 when needed. The operation is convenient and reliable.

[0032] The height of the limiting plate 12 is the same as that of the supporting block 20 .

[0033] It also includes a pressure detection module, which is arranged at the end of the tube 3 connected to the human body. The pressure detection module is a pressure sensor, which detects the pressure in the tube 3 in real time. The pressure sensor and the controller transmit data. The controller is electrically connected to the motor 2. When the pressure sensed by the pressure sensor exceeds the maximum value of the set threshold, the controller controls the motor 2 to start, promote the flow of liquid and accelerate it into the liquid collection bag or liquid collection bottle.

[0034] In this embodiment, the pressure detection module is a pressure sensor, which is arranged at the end of the tube 3 connected to the human body. It detects the pressure in the tube 3 in real time and transmits the data to the controller. The controller is electrically connected to the motor 2. When the pressure exceeds the set threshold value, the controller controls the motor 2 to start, drives the diversion component to work, and promotes the accelerated flow of liquid, thereby realizing automatic control of the drainage process. When the pressure in the tube 3 is too high, the motor 2 is automatically started to accelerate the drainage, avoiding discomfort to the human body or affecting the drainage effect due to excessive pressure, thereby improving the intelligence and safety of the device.

[0035] The method of use of the present invention is as follows: place the anti-infection negative pressure drainage device after parastomal hernia repair in a suitable position, pass the drainage tube 3 through the gap between the base 5 and the outer cover 1, and position it through the limiting ring 4 to ensure that the drainage tube 3 is installed firmly and the position is accurate, connect one end of the drainage tube 3 to the drainage site after the patient's parastomal hernia repair, and connect the other end to the liquid collection bag or liquid collection bottle. After the device is started, the pressure detection module monitors the pressure in the drainage tube 3 in real time. When the pressure is within the normal range, the diversion component is in standby mode, and the liquid relies on natural pressure and gravity for drainage. When the pressure detection module detects that the pressure in the drainage tube 3 exceeds the set threshold value, the pressure sensor transmits data to the controller, and the controller controls the stepping motor 2 to start, drive the rotating shaft 19 and the diversion component to work, and the extrusion rod 7 squeezes the drainage tube 3 to promote the liquid to flow faster, so that it quickly enters the liquid collection bag or liquid collection bottle;

[0036] When the fluid collection bag or bottle needs to be replaced, the motor 2 is started to drive the rotating shaft 19 to rotate in the reverse direction. The rotating shaft 19 drives the ratchet 11 to rotate. The toggle teeth 18 of the ratchet 11 push the ratchet teeth 17 to move. The squeezing block 13 moves through the connecting rod mechanism, squeezing the drainage tube 3 to close it. The fluid collection device can now be safely replaced. After the replacement is completed, the motor 2 drives the rotating shaft 19 to rotate in the forward direction. The toggle teeth 18 of the ratchet 11 no longer press against the ratchet teeth 17. The reset spring 21 resets the ratchet teeth 17, and the device resumes normal diversion function.

[0037] The above descriptions are merely two embodiments of an absorber tube fixing frame of the present invention and are not intended to limit the scope of the present invention. Any equivalent structural or process transformations based on the present specification and drawings, or any direct or indirect application in other related technical fields, are also encompassed within the scope of the present invention.

Claims

1. A postoperative negative pressure drainage device for preventing infection after parastomal hernia repair, comprising an outer cover (1), characterized in that: The lower parts of both sides of the outer cover (1) are fixedly connected to the base (5) through support blocks (20), and a certain gap is provided between the base (5) and the outer cover (1). The middle parts of both sides of the base (5) and the outer cover (1) are fixedly connected to the fixing ring (9) through connecting blocks (8), and the fixing ring (9) is fixed to the middle of the upper inner wall of the outer cover (1). A flow guide component is provided in the outer cover (1), and the flow guide component is used for guiding flow. A limiting ring (4) is provided at one end of the outer cover (1), and the tube (3) can pass through the gap between the base (5) and the outer cover (1) and the limiting ring (4). The flow guide component is provided on the upper side of the tube (3); A blocking component is also provided, the blocking component being connected to the diversion component and being used for squeezing the tube (3) to seal the squeezed portion thereof when replacing the fluid collection bag or the fluid collection bottle.

2. The postoperative infection-preventing negative pressure drainage device for parastomal hernia repair according to claim 1, characterized in that: The guide assembly comprises a rotating shaft (19), a moving ring (6), an extrusion rod (7) and a rotating wheel (10). The two ends of the outer cover (1) are respectively rotatably connected to the rotating shaft (19). The central axis of the rotating shaft (19) is fixedly connected to the eccentric position of a group of evenly arranged rotating wheels (10). The rotating wheels (10) are fixed in the moving ring (6). The lower side of the moving ring (6) is fixedly connected to the extrusion rod (7). The lower end of the extrusion rod (7) is in an arc shape. The lower end of the extrusion rod (7) is made of rubber. The rotating wheel (10) is separated by the fixed ring (9). The upper side arc surface of the rotating wheel (10) in the first direction gradually decreases. The first direction is the direction from the fixed ring (9) to the direction away from the fixed ring (9). One end of the rotating shaft (19) is fixedly connected to the motor (2). The motor (2) fixes the outer cover (1). The other end of the rotating shaft (19) is connected to the blocking assembly.

3. The postoperative infection-preventing negative pressure drainage device for parastomal hernia repair according to claim 2, characterized in that: The motor (2) is a stepping motor (2).

4. The postoperative infection-preventing negative pressure drainage device for parastomal hernia repair according to claim 3, characterized in that: The blocking assembly comprises a ratchet (11), a limit plate (12), a ratchet (17), a toggle tooth (18), a return spring (21), an extrusion block (13), a first connecting rod (14), a second connecting rod (15) and a fixed rod (16), one end of the limit plate (12) is fixed to the lower part of the other end of the outer cover (1), the other end of the limit plate (12) is passed through by the extrusion block (13), one side of the upper end of the pressurizing fastener is rotatably connected to one end of the first connecting rod (14), the other end of the first connecting rod (14) is rotatably connected to one end of the second connecting rod (15), and the second connecting rod (15) is rotatably connected to one end of the first connecting rod (14). The other end is rotatably connected to one end of the fixed rod (16), the fixed rod (16) is L-shaped, the other end of the fixed rod (16) is fixedly connected to the outer cover (1), the other end of the second connecting rod (15) is fixedly connected to one end of the ratchet (17), the ratchet (17) matches the toggle tooth (18) of the ratchet (11), the toggle tooth (18) is fixed to the inner ring of the ratchet (11), the center of the ratchet (11) is fixedly connected to the other end of the rotating shaft (19), and the ratchet (17) is fixedly connected to the fixed rod (16) through the reset spring (21).

5. The anti-infection negative pressure drainage device after parastomal hernia repair according to claim 4, characterized in that: The height of the limiting plate (12) is the same as the height of the supporting block (20).

6. The anti-infection negative pressure drainage device after parastomal hernia repair according to claim 1, characterized in that: It also includes a pressure detection module, which is arranged at one end of the tube (3) connected to the human body. The pressure detection module is a pressure sensor, which detects the pressure in the tube (3) in real time. The pressure sensor and the controller transmit data. The controller is electrically connected to the motor (2). When the pressure felt by the pressure sensor exceeds the maximum value of the set threshold, the controller controls the motor (2) to start, promotes the flow of liquid, and accelerates the flow of liquid into the liquid collection bag or the liquid collection bottle.

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