Medical flushing solution pulse flushing device

Abstract

This utility model belongs to the technical field of medical irrigation devices, specifically relating to a pulse irrigation device for medical irrigation fluid. It includes a frame, an adjustment button, a power supply module, a control module, a foot switch, and a pulse squeezing mechanism. The power supply module supplies power to the foot switch and the pulse squeezing mechanism. The pulse squeezing mechanism, mounted on the frame, includes a driver and a squeezing head. The driver drives the working end of the squeezing head to cyclically penetrate the groove and move along the extension direction of the groove. The foot switch is signal-connected to the control module. The control module controls the number of cycles and / or the stroke length of each cycle of the squeezing head's working end based on the number of times and / or the duration of the foot switch being pressed. This utility model allows medical personnel to accurately and as needed control the irrigation flow rate via a foot switch, achieving pulsed irrigation. It is convenient for independent operation and control by medical personnel and ensures effective irrigation.

Description

Technical Field

[0001] This utility model belongs to the field of medical rinsing technology, specifically relating to a medical rinsing fluid pulse rinsing device. Background Technology

[0002] A fiberoptic bronchoscope, also known as a bronchoscope, is an instrument used to diagnose bronchial diseases by using a beam of light composed of multiple fine fibers drawn from highly transparent glass or acrylic resin. When using a fiberoptic bronchoscope, medical personnel often need to flush the lesion when encountering lesions containing sputum, fluid accumulation, blood clots, or pus that cannot be completely suctioned out of the airway.

[0003] The structure of a common bronchoscope currently includes a frame body, an air passage, and an objective lens. The frame body is equipped with an adjustment mechanism for adjusting the objective lens and an inlet for injecting irrigation fluid. When operating a bronchoscope, medical staff hold the handle on the frame and use their other hand or the thumb of the same hand to adjust the objective lens to penetrate the lung. They then use a monitor to position the lens and observe the lung condition. Inhalation is performed to suction out sputum, fluid, blood clots, or pus. If further irrigation is needed, another medical staff member must assist, or the other hand must open the irrigation port. The irrigation solution is then injected through a syringe. This presents several problems: First, injecting the solution manually is difficult and requires precise control of the flow rate, often resulting in intermittent irrigation and poor irrigation effectiveness. Second, requiring another staff member increases the use of medical resources. Third, even when the same staff member independently injects the solution with their other hand, it is difficult to stabilize the bronchoscope, frequently causing the objective lens to shift. This not only alters the irrigation position and affects the effectiveness but may also damage the patient's lungs.

[0004] Therefore, there is a need for a medical flushing device that is easy for medical personnel to operate and control independently and has a better flushing effect. Utility Model Content

[0005] The present invention aims to provide a medical irrigation fluid pulse irrigation device, which is easy for medical personnel to operate and control independently, and ensures the irrigation effect.

[0006] To achieve the above objectives, the present invention provides a medical irrigation fluid pulse irrigation device, comprising a frame, adjustment buttons, a power supply module, a control module, a foot switch, and a pulse squeezing mechanism. The power supply module provides power to the foot switch, control module, and pulse compression mechanism. The pulse extrusion mechanism is installed on the frame and includes a driver and an extrusion head. The adjustment button and the driver are both connected to the control module. The adjustment button is located on the outer surface of the frame. The extrusion head is installed on the output end of the driver. The frame is provided with a groove for the flushing pipe to pass through. The driver drives the working end of the extrusion head to circulate into the groove and move along the extension direction of the groove. The foot switch is connected to the control module. The control module controls the number of cycles and / or the stroke length of the working end of the extrusion head based on the number of times and / or the duration of the foot switch being pressed.

[0007] The working principle and beneficial effects of this solution are as follows: It is used in conjunction with a flexible and elastic irrigation tube, typically made of polyvinyl chloride, polyurethane, or polyethylene. The middle of the irrigation tube is placed in a groove in the frame. One end of the tube connects to an irrigation fluid source such as an infusion bottle / infusion bag / syringe, and the other end connects to the infusion port of a bronchoscope or other irrigation device. Medical personnel control the number of cycles and / or the stroke length of the squeezing head's working end by adjusting the button to set the number of times and / or the duration of a single foot press. As the squeezing head slides into the groove, it squeezes the irrigation tube along the groove's extension direction, creating a pulsating water flow within the tube. When the foot is not pressed, the pulsating squeezing mechanism stops moving. Because it is controlled by a foot switch, it frees up medical staff's hands. While performing the flushing operation, the foot switch can be used to control whether it is a single flush or a continuous pulse flush. In the continuous pulse flushing, the flushing volume of each pulse is also the same as that of a single flush (preset via an adjustment button). Thus, the flushing flow can be accurately controlled as needed via the foot switch. Because the pulse flow is controllable, and because pulse flushing generates pulse pressure, the flushing effect is improved. The pulse frequency is adjusted by adjusting the frequency of the driver's movement via an adjustment button. With the flushing tube remaining constant, a higher pulse frequency results in greater pulse pressure (i.e., flushing pressure).

[0008] Optionally, the groove includes a curved section that changes the direction of the groove two or more times. By changing the direction of the groove two or more times, the curved section increases the contact area or contact pressure between the flushing pipe and the sidewall of the groove, thereby increasing the friction between the flushing pipe and the groove and allowing the flushing pipe to remain more stable in the groove.

[0009] Optionally, the flushing pipe is provided with a protrusion, the outer diameter of which is larger than the cross-sectional dimension of the groove. Although the groove can overcome the thrust of the extrusion head on the flushing pipe through static friction between the groove and the flushing pipe, under high flow or high pulse frequency conditions, the thrust of the extrusion head on the flushing pipe will increase significantly, which helps to keep the protrusion stuck at the groove opening and ensure that the flushing pipe remains stationary within the groove.

[0010] Optionally, a one-way valve is provided within the protrusion to prevent backflow of flushing fluid into the flushing pipe.

[0011] Optionally, the extrusion head includes an extrusion roller rotatably connected to the end of the extrusion head furthest from the driver. This rolling extrusion of the flushing tube allows the extrusion head to move more smoothly within the groove, while reducing friction between the extrusion head and the flushing tube, thus extending the service life of both the extrusion head and the flushing tube.

[0012] Optionally, the pulse extrusion mechanism includes a guide mechanism, which comprises an annular groove and several stop grooves. The annular groove is disposed on the side of the groove, and a portion of the annular groove communicates with the groove. The stop grooves are disposed on the movement path of the extrusion head, and the stop grooves connect the groove and the side of the annular groove away from the groove. The extrusion head includes a guide rod, one end of which is connected to the output end of the driver, and the other end is provided with a guide portion, which is slidably connected in the guide mechanism. When the driver drives the extrusion head to reciprocate in a cycle, the driver's stroke is set by adjusting the button, i.e., which stop groove the end of the guide rod away from the driver can move to. The closer the stop groove is to the working end of the driver, the longer the path of the groove through which the extrusion head completes one cycle, and the greater the flow rate generated by the extrusion head in a single extrusion of the flushing tube, and vice versa.

[0013] Optionally, the guide section includes a pin or a guide wheel. The pin is used to be fixedly connected to the guide rod and then slidably connected to the guide mechanism. Compared to the guide wheel, it has a smaller structure and is easier to integrally mold with the guide rod to ensure structural strength. The guide wheel is used to rotatably connect to the guide rod and is rolled into the groove and stop slot within the guide mechanism, allowing for smoother reversal at the end of the guide rod. Compared to the pin, it is more suitable for larger structures and flushing with higher pulse frequencies and pressures.

[0014] Optionally, the number of guide rods and guide mechanisms is even, and they are distributed on both sides of the groove.

[0015] Optionally, the guide rod includes a spring plate, one end of which is statically connected to the output end of the driver, and the guide portion is disposed on the end of the spring plate away from the driver.

[0016] Optionally, it also includes a mounting base, one end of which is hinged to the mounting base, and a tension spring connecting the guide rods. The mounting base is used to connect to the working end of the driver.

[0017] Optionally, the pulse extrusion mechanism includes a wedge-shaped groove and a baffle. The wedge-shaped groove is arranged along the direction of the groove and communicates with it. The wedge-shaped groove gradually widens along the direction in which the extrusion head enters and exits the groove. One end of the baffle is hinged to the narrower end of the wedge-shaped groove, and the other end of the baffle is a free end. A shifting mechanism for controlling the swing angle of the baffle is connected to the free end. By controlling the swing angle of the baffle through the shifting mechanism, the length of the close contact between the baffle and the flushing pipe installed in the groove is controlled. The extrusion head can only extrude the flushing pipe at the part where the baffle is in close contact with the flushing pipe; the rest of the part does not extrude. Thus, the flow rate is controlled by controlling the swing angle of the baffle. Compared with using a shifting groove to control the flow rate, this solution can achieve stepless adjustment of the flow rate.

[0018] Optionally, the shifting mechanism includes a cam and a shifting servo motor. The cam is connected to the output end of the shifting servo motor, and the cam abuts against the side of the baffle away from the extrusion head. The rotation angle of the cam is controlled by the shifting servo motor, causing the free end of the baffle to swing, thereby controlling the swing angle of the baffle.

[0019] Optionally, the shifting mechanism includes a shifting electric cylinder, with the free end of the shifting plate connected to the working end of the shifting electric cylinder, and the mounting end of the shifting electric cylinder hinged to the frame. The shifting electric cylinder directly controls the free end of the shifting plate, thereby controlling the swing angle of the shifting plate.

[0020] Alternatively, the driver can be a voice coil motor, an electric cylinder, a servo motor, or a linear motor. Attached Figure Description

[0021] Figure 1 This is a front view of the pulse flushing device for traditional Chinese medicine irrigation fluid according to Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the back and part of the internal structure of the pulse flushing device for traditional Chinese medicine in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the overall structure of the pulse flushing device for traditional Chinese medicine in Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of the lower housing structure of the pulse flushing device for traditional Chinese medicine irrigation fluid according to Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the upper housing structure of the pulse flushing device for traditional Chinese medicine irrigation fluid according to Embodiment 2 of this utility model; Figure 6 This is a schematic diagram of the pressure plate structure of the pulse flushing device for traditional Chinese medicine flushing fluid in Embodiment 2 of this utility model. Detailed Implementation

[0022] The following detailed description illustrates the specific implementation method: The markings in the accompanying drawings include: housing 1, front 101, back 102, lower housing 103, upper housing 104, pressure plate 105, battery box 106, display screen 2, button 3, socket 4, foot switch 5, flushing pipe 6, protrusion 7, groove 8, arc groove 801, curved groove 802, extrusion head 9, guide rod 901, sleeve 902, pin 903, extrusion wheel 904, ear plate 905, protrusion 10, annular groove 11, gear groove 12, linear motor 13, lifting ring 14, switch 15, wedge groove 16, connecting rod 17, cam 18, baffle 19, torsion spring 20.

[0023] Example 1 This embodiment is basically as shown in the appendix. Figure 1 Appendix Figure 2 As shown: A medical irrigation fluid pulse irrigation device, including a frame, a power supply module, an irrigation tube 6, a control module, a foot switch 5, and a pulse squeezing mechanism. In this embodiment, the transparent flushing tube 6 made of polyvinyl chloride (PVC) exhibits excellent fatigue resistance, flexibility, and elasticity. The frame is a plastic shell 1, generally shaped like a square prism, internally divided into two cavities along the longitudinal direction by a partition, i.e., the shell 1 has a front and a back. The front 101 is equipped with a display screen 2 and four buttons 3. The display screen 2 is used to display at least the flow rate and pulse level, and the four buttons 3 are used to increase or decrease the pulse frequency and flushing flow rate, respectively. In this embodiment, the buttons 3 are contact buttons; in other embodiments, they can also be knobs, resistive or capacitive touchscreens. The back 102 is used to provide a groove 8 for the flushing tube 6 to pass through and a pulse squeezing mechanism. A hanging ring 14 is also provided on the top of the shell 1 to suspend the entire frame on an IV stand commonly used by medical personnel. The entire device is compact and portable, especially suitable for use with bagged flushing solutions that are easy to hang on an IV stand.

[0024] The power supply module supplies power to the foot switch 5, the control module, and the pulse compression mechanism. In this embodiment, the power supply module is a battery box 106 composed of multiple dry cell batteries, which is mounted on the front 101 of the housing 1. The control module is an MCU controller with storage, input, output, and calculation functions, along with its peripheral input and output circuits and interfaces. The control module also has a switch for controlling the power supply. The entire control module is located on the side of the partition facing the front 101, with the switch located on the side of the housing 1 (not shown in the figure). The front 101 of the housing 1 has an aviation plug socket 4, which is connected to the control module for signal transmission.

[0025] The pulse extrusion mechanism includes a driver and an extrusion head 9. The extrusion head 9 includes a guide rod 901, a guiding mechanism, and an extrusion wheel 904. In this embodiment, the driver is a linear motor 13. In other embodiments, the driver can also be a voice coil motor, an electric cylinder, a servo motor, etc. This type of driver can perform reciprocating motion with a fast response, which facilitates precise control of the stroke of the guide rod 901. The guide rod 901 is a spring plate made of spring steel sheet with elasticity, toughness, and a certain rigidity. There are two spring plates, which are distributed on both sides of the working end of the linear motor 13. One end of each spring plate is fixed to the working end of the linear motor 13 by an ear plate 905, and a sleeve 902 is fixed to the other end. In other embodiments, the guide rod 901 is a rigid rod. One end of the guide rod 901 is hinged to a mounting base, which is mounted on the working end of the linear motor 13. The other end of the guide rod 901 can also be fixed with a pin 903 or rotatably connected to a guide wheel, allowing the free end of the guide rod 901 to slide in the guide mechanism. Compared to a spring-loaded guide rod 901, this is more suitable for the extrusion head 9 with a longer stroke. The tension spring allows the guide rod 901 to slide in the guide mechanism. In this embodiment, the guide part on the guide mechanism is a pin 903, which is coaxially fixedly connected to the sleeve 902. The extrusion wheel 904 is rotatably connected to the pin 903, and both ends of the pin 903 extend to the outside of the extrusion wheel 904 and the sleeve 902, respectively, to facilitate sliding connection with the guide mechanism. A silicone layer is provided on the front side of the pin 903 for noise reduction. The guiding mechanism includes an annular groove 11 and several shift grooves 12. In this embodiment, the annular groove 11 and the shift grooves 12 are formed by multiple protrusions 10 integrally formed on the housing 1 and spaced apart. The spaces formed by the gaps between the protrusions 10 and the gaps between the protrusions 10 and the inner wall of the housing 1 constitute the annular groove 11 and the shift grooves 12. The largest protrusion 10 is located on the side furthest from the driver, and an annular groove 11 is formed around it. The shift grooves 12 are formed on both sides of the remaining protrusions 10. In this embodiment, annular grooves 11 and shift grooves 12 are provided on both sides of the groove 8 and are symmetrically distributed along the axis of the groove 8.

[0026] In this embodiment, the groove 8 is a straight groove, but the flushing pipe 6 is provided with a protrusion 7. The outer diameter of the protrusion 7 is larger than the cross-sectional size of the groove 8. The protrusion 7 is stuck in the upper groove opening of the groove 8. When the squeezing head 9 squeezes the flushing pipe 6, the squeezing pipe can also remain stable in the groove 8.

[0027] The foot switch 5 uses an aviation plug that mates with the socket 4 on the housing 1. The control module controls the number of cycles and / or the stroke length of the working end of the squeezing head 9 according to the number of times and / or the duration of the foot switch 5 being pressed.

[0028] After the aviation plug of the foot switch 5 is inserted into the socket 4, the switch is turned on. The pulse level is adjusted by the pulse level adjustment button 3, which adjusts the pulse frequency. The higher the frequency, the shorter the time for the squeezing head 9 to complete one cycle, and the greater the flushing pressure, and vice versa. The stroke of the squeezing head 9 to squeeze the flushing tube 6 during one cycle is adjusted by the pulse flow adjustment button 3. The longer the squeezing stroke, the greater the pulse flow. More specifically, in this embodiment, adjusting the pulse flow adjusts the distance the squeezing head 9 retracts (quickly retracts) during the cyclic movement of the squeezing head 9. This distance determines which slot 12 the squeezing head 9 enters and squeezes the flushing tube 6 from when squeezing the flushing tube 6. The slot 12 further away from the annular slot 11 has a greater flow. In this embodiment, the flow rate of squeezing the flushing tube 6 starting from the lowest slot 12 is about 10ml. Each of the three slots 12 from the bottom up increases by 5ml. That is, in this embodiment, the flow rate of a single flush can be selected as 10ml, 15ml, 20ml, and 25ml as needed. The pulse frequency can reach 3 times per second or more.

[0029] In this embodiment, a control program is written into the control module. When the foot switch 5 is pressed, for example, if the duration of pressing the foot switch 5 is less than 0.5 seconds, the control program determines it as a short press. The control module controls the working end of the linear motor 13 to reciprocate once, and the extrusion head 9 resets and stops after completing one cycle. If the duration of pressing the foot switch 5 is more than 0.5 seconds, the control program determines it as a long press. The control module controls the working end of the linear motor 13 to continuously reciprocate until the foot switch 5 is released, at which point the extrusion head 9 stops its cycle and resets.

[0030] In other embodiments, the retraction distance of the squeezing head 9 can also be controlled by controlling the duration of pressing the foot control switch 5. For example, if the pressing time is less than 0.5 seconds, 10 ml of water is rinsed; if the pressing time is 0.5 to 1 second, 15 ml of water is rinsed; and so on. Each time the foot is pressed, the squeezing head 9 completes one or a fixed number of cycles.

[0031] In other embodiments, the foot switch 5 can also be wirelessly connected to the control module via Bluetooth, Wi-Fi, or other means.

[0032] Example 2 This embodiment is basically as shown in the appendix. Figure 3 Appendix Figure 4 Appendix Figure 5 As shown, the medical irrigation fluid pulse irrigation device includes a frame, a power supply module, an irrigation tube 6, a control module, a foot switch 5, and a pulse squeezing mechanism. In this embodiment, the frame is also a plastic shell 1. The shell 1 is divided into a lower shell 103, a pressure plate 105, and an upper shell 104. The lower shell 103, pressure plate 105, and upper shell 104 are hinged to each other on the same side. The pressure plate 105 is disposed between the upper shell 104 and the lower shell 103. After the upper shell 104 is closed onto the lower shell 103, it forms a rectangular block box. The other side of the box is fastened by a snap fastener. The upper shell 104 is provided with a display screen 2 and four buttons 3. The display screen 2 is used to display at least the flow rate and pulse level. The four buttons 3 are used to increase or decrease the pulse frequency and flushing flow rate, respectively. In this embodiment, the buttons 3 are contact buttons. A groove 8 is disposed on the side of the lower shell 103 facing the upper shell 104. The groove 8 includes a C-shaped arc groove 801 and two curved groove portions 802 disposed at both ends of the arc groove 801 to change the direction of the groove 8. The curved groove portions 802 can prevent the flushing pipe 6 from sliding freely in the groove 8. The pressure plate 105 has protrusions corresponding to the shape and position of the groove 8 and the bend 802, as shown in the attached figure. Figure 6 As shown, when the upper housing 104 is closed onto the lower housing 103, the protrusion exerts a certain amount of pressure on the flushing pipe 6, further fixing the flushing pipe 6 in the groove 8 and preventing it from sliding.

[0033] The power supply module provides power to the foot switch 5, the control module, and the pulse squeezing mechanism. The power supply module includes a converter plug that converts household AC power to low-voltage DC power and corresponding cables, allowing the entire device to draw power from household AC power. This embodiment is more suitable for use on desktops, workbenches, hospital beds, etc., and is suitable for use with bottled irrigation solutions or syringes.

[0034] The control module is an MCU controller with storage, input, output, and calculation functions, along with its peripheral input / output circuits and interfaces. The control module also includes a power switch 5. The entire control module is housed within the upper housing 104, with the switch 5 located on the side of housing 1. An aviation plug socket 4 is located on the side of housing 1, and socket 4 is connected to the control module for signal transmission. The housing also features indicator lights to display battery level, gear position, or whether the foot switch 5 is plugged in; these indicator lights are all connected to the control module.

[0035] The pulse extrusion mechanism includes a driver, an extrusion head 9, a wedge-shaped groove 16, and a baffle 19. The wedge-shaped groove 16 is disposed on the lower housing 103, and is arranged along the direction of the arcuate groove 801 of the groove 8 and communicates with the arcuate groove 801. The wedge-shaped groove 16 gradually widens along the direction in which the extrusion head 9 enters and exits the groove 8. One end of the baffle 19 is hinged to the narrower end of the wedge-shaped groove 16, and the other end of the baffle 19 is a free end, which is kept away from the extrusion head 9 by a torsion spring 20. In this embodiment, the driver includes a servo motor and a worm gear mechanism connected to the control module. The worm is connected to the output end of the servo motor, and the servo motor is fixed inside the upper housing 104. The worm gear is rotatably connected to the upper housing 104. The extrusion head 9 is fixed on the rotating shaft of the worm gear. The extrusion head 9 includes a connecting rod 17 and an extrusion wheel 904, and the extrusion wheel 904 is rotatably connected to the end of the connecting rod 17 away from the driver. When the connecting rod 17 rotates with the worm gear, the extrusion wheel 904 enters the arc groove 801 as it passes through the arc groove 801.

[0036] A shifting mechanism for controlling the swing angle of the baffle 19 is connected to the free end. In this embodiment, the shifting mechanism includes a cam 18 and a shifting servo motor. The cam 18 is indirectly connected to the output end of the shifting servo motor through a worm gear mechanism. The cam 18 abuts against the side of the baffle 19 away from the extrusion head 9.

[0037] The foot switch 5, similar to that in Embodiment 1, uses an aviation plug that mates with the socket 4 on the housing 1. The control module controls the number of cycles and / or the stroke length of the working end of the squeezing head 9 according to the number of times and / or the duration of the foot switch 5 being pressed.

[0038] In this embodiment, by controlling the rotation angle of the shift servo motor, the swing angle of the cam 18 is controlled, thereby controlling the swing angle of the baffle 19 of the shift mechanism. This controls the length of the baffle 19 in close contact with the flushing pipe 6 installed in the groove 8. The extrusion head 9 can only extrude the flushing pipe 6 at the part where the baffle 19 is in close contact with the flushing pipe 6; the rest of the part does not extrude. Thus, the flow rate is controlled by controlling the swing angle of the baffle 19. Compared with Embodiment 1, this embodiment can achieve stepless adjustment of the flow rate. The pulse frequency can be adjusted by the button 3, that is, the rotation speed of the worm gear and the extrusion head 9 can be controlled. One press rotates the extrusion head 9 once, and a long press keeps the extrusion head 9 rotating until the foot control switch 5 is released. The control and judgment logic for pressing and long pressing is the same as in Embodiment 1. In other embodiments, the flow rate can also be controlled by pressing the foot control switch 5 alone, that is, the driver only rotates when the foot control switch 5 is pressed, and stops immediately when the foot control switch 5 is released.

[0039] The above are merely embodiments of this utility model. This utility model is not limited to the field covered by this embodiment. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are able to access all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims. The specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A medical irrigation fluid pulse irrigation device, characterized in that: Includes frame, adjustment buttons, power supply module, control module, foot switch, and pulse compression mechanism: The power supply module provides power to the foot switch and the pulse compression mechanism; The pulse extrusion mechanism is installed on the frame and includes a driver and an extrusion head. The adjustment button and the driver are both connected to the control module. The adjustment button is located on the outer surface of the frame. The extrusion head is installed on the output end of the driver. The frame is provided with a groove for the flushing pipe to pass through. The driver drives the working end of the extrusion head to circulate into the groove and move along the extension direction of the groove. The foot switch is connected to the control module. The control module controls the number of cycles and / or the stroke length of the working end of the extrusion head based on the number of times and / or the duration of the foot switch being pressed.

2. The medical irrigation fluid pulse irrigation device according to claim 1, characterized in that: The groove includes a curved section, which changes the direction of the groove two or more times.

3. The medical irrigation fluid pulse irrigation device according to claim 1, characterized in that: The flushing pipe has a protrusion, the outer diameter of which is larger than the cross-sectional dimension of the groove.

4. The medical irrigation fluid pulse irrigation device according to claim 3, characterized in that: A one-way valve is installed inside the protrusion.

5. The medical irrigation fluid pulse irrigation device according to claim 1, characterized in that: The extrusion head includes an extrusion wheel, which is rotatably connected to the end of the extrusion head away from the driver.

6. The medical irrigation fluid pulse irrigation device according to claim 5, characterized in that: The pulse extrusion mechanism also includes a guide mechanism, which includes an annular groove and several stop grooves. The annular groove is located on the side of the groove, and a part of the annular groove is connected to the groove. The stop grooves are located on the movement path of the extrusion head and connect the groove and the side of the annular groove away from the groove. The extrusion head includes a guide rod, one end of which is connected to the output end of the driver, and the other end is provided with a guide part, which is slidably connected in the guide mechanism.

7. The medical irrigation fluid pulse irrigation device according to claim 6, characterized in that: The guide section includes a pin or a guide wheel.

8. The medical irrigation fluid pulse irrigation device according to claim 6, characterized in that: The number of guide rods and guide mechanisms is even, and they are distributed on both sides of the groove.

9. The medical irrigation fluid pulse irrigation device according to claim 6, characterized in that: The guide rod includes a spring plate, one end of which is statically connected to the output end of the driver, and the guide part is located on the end of the spring plate away from the driver.

10. The medical irrigation fluid pulse irrigation device according to claim 6, characterized in that: It also includes a mounting base, one end of the guide rod is hinged to the mounting base, and a tension spring connects the guide rods.

11. The medical irrigation fluid pulse irrigation device according to claim 5, characterized in that: The pulse extrusion mechanism also includes a wedge groove and a baffle. The wedge groove is arranged along the direction of the groove and communicates with the groove. The wedge groove gradually widens along the direction of the extrusion head entering and exiting the groove. One end of the baffle is hinged to the narrower end of the wedge groove, and the other end of the baffle is a free end. A shifting mechanism for controlling the swing angle of the baffle is connected to the free end.

12. The medical irrigation fluid pulse irrigation device according to claim 11, characterized in that: The shifting mechanism includes a cam and a shifting servo motor. The cam is connected to the output end of the shifting servo motor, and the cam abuts against the side of the baffle away from the extrusion head.

13. The medical irrigation fluid pulse irrigation device according to claim 11, characterized in that... The shifting mechanism includes a shifting electric cylinder, the free end of the shifting plate is connected to the working end of the shifting electric cylinder, and the mounting end of the shifting electric cylinder is hinged to the frame.

14. The medical irrigation fluid pulse irrigation device according to claim 1, characterized in that: The driver can be a voice coil motor, electric cylinder, servo motor, or linear motor.

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