A flusher head and an electric pulse flusher

Abstract

This invention belongs to the technical field of clinical medical surgical equipment, and provides an irrigation nozzle and an electric pulse irrigation device. The irrigation nozzle includes a nozzle connector assembly, a spray tube, an inner nozzle tube, an outer nozzle tube, a nozzle component, a reversing assembly, and a distribution component. One end of the nozzle connector assembly is externally connected to an irrigation fluid supply device. When the fluid provided by the irrigation fluid supply device flows inside the irrigation nozzle, it can drive the reversing end of the reversing assembly to rotate relative to the inner nozzle tube. This reversing end of the reversing assembly can further drive the distribution component to rotate. By adjusting the relative position of the nozzle component and the fourth water outlet of the outer nozzle tube, the first, second, and third spray states of the irrigation nozzle can be adjusted to adapt to the needs of different irrigation scenarios and meet the integrated needs of various application scenarios such as wounds, medullary cavities, and chronic wounds.

Description

Technical Field

[0001] This invention belongs to the field of clinical medical surgical equipment technology, specifically relating to an irrigation nozzle and an electric pulse irrigation device. Background Technology

[0002] Disposable electric pulse irrigators are essential wound irrigation instruments for clinical surgical procedures. The nozzle of a disposable electric pulse irrigator is a nozzle that achieves multiple irrigating functions through fluid drive and mechanism control, and is used for wound cleaning and irrigation in various scenarios.

[0003] The effectiveness of wound irrigation depends on the characteristics of the periodic pulsed water flow. Different scenarios require different pulsed water flow. Open wounds require a matrix pulsed fluid for high-pressure irrigation and a ribbon-like high-pressure water flow for efficient irrigation. Cleaning the medullary cavity requires radial high-pressure fluid to rinse the medullary cavity wall. Slow-developing wounds require low-pressure, large-area, gentle irrigation. To address the diverse clinical needs, an irrigation nozzle that is compatible with multiple application scenarios is required. Since irrigation nozzles are disposable consumables, it is necessary to achieve good irrigation results while also considering good economic benefits.

[0004] Traditional flush nozzles have the following drawbacks: (1) Single function: one nozzle can only perform the function of one application scenario.

[0005] (2) The flushing device is equipped with multiple disposable nozzles, resulting in serious waste of resources. Summary of the Invention

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a flushing nozzle and an electric pulse flushing device.

[0007] The technical solution adopted by this invention to solve its technical problem is: A flushing nozzle includes a nozzle connector assembly, a spray pipe, an inner nozzle tube, an outer nozzle tube, a nozzle component, a reversing assembly, and a dispensing component; One end of the spray pipe, the inner nozzle tube, and the outer nozzle tube is connected to the nozzle connector assembly. The inner nozzle tube is coaxially disposed outside the spray pipe, and the outer nozzle tube is sleeved on the inner nozzle tube. The nozzle component is slidably engaged with the other end of the outer nozzle tube. The reversing assembly is disposed at the inner nozzle tube and has a reversing end that can rotate relative to the inner nozzle tube. The distribution component is disposed at the inner nozzle tube and can rotate relative to the inner nozzle tube. The reversing end engages with the distribution component. The distribution component has a first water outlet. The axial end of the inner nozzle tube has a second water outlet and a third water outlet. The radial inner wall of the inner nozzle tube has a fourth water outlet. The radial inner wall of the nozzle component has a spiral groove. During the process of the reversing end of the reversing assembly driving the distribution component to rotate, and when the position of the first water outlet corresponds to the positions of the second water outlet and the third water outlet respectively, the flushing nozzle presents a first spraying state. The reversing end of the reversing assembly drives the distribution member to rotate, causing the position of the first water outlet to be misaligned with the positions of the second and third water outlets, and the position of the nozzle member to be misaligned with the position of the fourth water outlet of the nozzle inner tube, when the flushing nozzle presents a second spraying state. The reversing end of the reversing assembly drives the distribution member to rotate, causing the position of the first water outlet to be misaligned with the positions of the second and third water outlets, and the position of the nozzle member to correspond to the position of the fourth water outlet of the nozzle inner tube, when the flushing nozzle presents a third spray state.

[0008] Preferably, the reversing assembly includes a reversing blade and a reversing blade shaft. The reversing blade is assembled inside the nozzle inner tube via the reversing blade shaft. The reversing blade is arranged along the axial and radial directions of the nozzle inner tube, and one end of the reversing blade is the reversing end.

[0009] Preferably, a dispersion cone is provided at the center of the axial end of the nozzle inner tube, and a shaft hole is provided on the inner wall surface of the nozzle inner tube to cooperate with the shaft of the reversing blade. The number of reversing blades is two or more and they are arranged around the outer wall surface of the dispersion cone. The middle part of the distribution component is provided with a mating hole that rotates with the dispersing cone.

[0010] Preferably, a rotating shaft mating hole and a rotating shaft limiting groove are provided on the outer wall surface of the nozzle outer tube. The diameter of the rotating shaft mating hole is larger than the opening size of the rotating shaft limiting groove. The rotating shaft mating hole and the rotating shaft limiting groove are connected. One end of the reversing blade rotating shaft can mate with the rotating shaft mating hole or the rotating shaft limiting groove.

[0011] Preferably, the first water outlet of the distributor is a plurality of first spray channels evenly distributed around the central axis of the distributor and along the radial direction of the distributor. The second water outlet section of the nozzle inner tube consists of several second liquid spray channels that are centered on the central axis of the nozzle inner tube and evenly distributed along the radial direction of the nozzle inner tube. The third water outlet of the nozzle inner tube consists of several axial spray holes that are centered on the central axis of the nozzle inner tube and evenly distributed along the radial direction of the nozzle inner tube. The fourth water outlet of the nozzle inner tube consists of several radial spray holes that are centered on the central axis of the nozzle inner tube and are evenly distributed along the radial direction of the nozzle inner tube. The first and second spray channels are elongated strips in shape.

[0012] Preferably, a water-blocking component is provided at the end face of the distribution component, which can abut against the reversing end of the reversing assembly. The water-blocking component includes two water-blocking plates, each with a guide cone structure. The water-blocking plates form water-blocking channels with the reversing assemblies on both sides. When the flushing nozzle is in the second spray state, the position of the water-blocking channel corresponds to the position of the fourth water outlet of the nozzle inner tube.

[0013] Preferably, the inner wall surface of the nozzle component is provided with a first sliding limiting groove, and the outer wall surface of the other end of the nozzle outer tube is provided with a first limiting post that can cooperate with the first sliding limiting groove. The outer tube of the nozzle is slidably fitted with the inner tube of the nozzle. A second sliding limiting groove is provided on the outer wall surface of the outer tube of the nozzle, and a plurality of limiting grooves are provided in the second sliding limiting groove. A second limiting post is provided on the outer wall surface of the inner tube of the nozzle, which can cooperate with the limiting groove. Long grooves are provided on both sides of the second sliding limiting groove. When the outer tube of the nozzle and the inner tube of the nozzle slide relative to each other, the second limiting post separates from one of the limiting grooves and can elastically deform the second sliding limiting groove, so that the second limiting post moves in the second sliding limiting groove and cooperates with the other limiting groove.

[0014] Preferably, the outer wall surface of the nozzle component is provided with a plurality of anti-slip textured protrusions.

[0015] Preferably, the nozzle connector assembly includes an inner nozzle connector and an outer nozzle connector. The outer nozzle connector is sleeved on the inner nozzle connector. The inner nozzle connector is connected to the spray pipe. The outer nozzle connector is connected to both the inner and outer nozzle pipes.

[0016] This application also includes an electric pulse flusher, comprising a flusher piston pump and the flusher nozzle described above, wherein the flusher piston pump is connected in conjunction with the nozzle connector assembly of the flusher nozzle.

[0017] Compared with the prior art, the beneficial effects of the present invention include: The irrigator nozzle of this application has one end of its nozzle connector assembly externally connected to an irrigation fluid supply device. When the fluid provided by the irrigation fluid supply device flows inside the irrigator nozzle, it can drive the reversing end of the reversing assembly to rotate relative to the inner tube of the nozzle. Thus, the reversing end of the reversing assembly can further drive the distribution component to rotate. In conjunction with adjusting the relative position of the nozzle component and the fourth water outlet of the nozzle outer tube, the first spray state, the second spray state, and the third spray state of the irrigator nozzle can be adjusted to adapt to the needs of different irrigation scenarios and meet the integration needs of various application scenarios such as wounds, medullary cavities, and chronic wounds. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional structural diagram of the flushing nozzle of the present invention; Figure 2 for Figure 1 The cross-sectional view marked AA; Figure 3 This is a schematic diagram of the flushing nozzle of the present invention in a dot-matrix jet liquid flow state; Figure 4 This is a schematic diagram of the flushing nozzle of the present invention in a ribbon-like liquid jet state; Figure 5 This is a schematic diagram of the flow of flushing fluid when the flushing nozzle of the present invention is in the second spraying state; Figure 6 This is a schematic diagram of the flow of flushing fluid when the flushing nozzle of the present invention is in the third spray state; Figure 7 This is a perspective view of the flush nozzle of the present invention; Figure 8 This is a schematic diagram of the structure of the nozzle outer tube of the present invention; Figure 9 This is a schematic diagram of the inner tube of the nozzle of the present invention; Figure 10 This is a schematic diagram of the nozzle component of the present invention. Figure 11 This is a cross-sectional view of the electric pulse flushing device of the present invention; Figure 12 This is a cross-sectional view of the piston pump of the flushing device of the present invention; Figure 13 This is a schematic diagram showing the direction of the end face of the front cover of the flushing piston pump of the present invention. Figure 14 This is a schematic diagram showing the end face of the pump body of the flushing piston pump of the present invention. Figure 15 This is a schematic diagram showing the one-way valve of the flushing piston pump of the present invention in the closed state; Figure 16 This is a schematic diagram showing the one-way valve of the flushing piston pump of the present invention in the open state; Figure 17 This is a schematic diagram of the flushing piston pump of the present invention in the water suction process; Figure 18 This is a schematic diagram of the flushing piston pump of the present invention in the water spraying process.

[0020] in: 1-Pump front cover, 101-Water outlet channel, 102-Assembly through hole, 103-Water passage hole, 104-Grid pattern; 2-Pump body, 201-Piston cylinder, 202-Water inlet channel, 203-Transverse partition, 204-Welded joint; 3-Piston component, 301-Annular groove, 302-Sealing ring; 4-One-way valve, 401-Resilient umbrella-shaped part, 402-Umbrella handle connection part, 403-Neck; 5-Cavity; 6- Nozzle connector assembly, 601- Nozzle inner connector, 602- Nozzle outer connector; 7-Spray pipe; 8- Nozzle inner tube, 801- Second water outlet, 802- Third water outlet, 803- Fourth water outlet, 804- Dispersion cone, 805- Second limiting column; 9- Nozzle outer tube, 901- Rotary shaft mating hole, 902- Rotary shaft limiting groove, 903- First limiting post, 904- Second sliding limiting groove, 905- Limiting groove, 906- Long groove; 10- Nozzle component, 1001- Spiral groove, 1002- First sliding limit groove, 1003- Anti-slip texture protrusion; 11-Reversing assembly, 1101-Reversing blade, 1102-Reversing blade shaft, 1103-Shaft limiting part; 12-Distribution component, 121-First water outlet, 122-Matching hole, 123-Water baffle plate, 124-Water baffle channel. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] Example: Example 1: like Figure 1-10 As shown, this embodiment provides a flushing nozzle, including a nozzle connector assembly 6, a spray pipe 7, a nozzle inner tube 8, a nozzle outer tube 9, a nozzle component 10, a reversing assembly 11, and a distribution component 12; One end of the spray pipe 7, the inner tube of the nozzle 8, and the outer tube of the nozzle 9 is connected to the nozzle connector assembly 6. The inner tube of the nozzle 8 is sleeved on the spray pipe 7, and the outer tube of the nozzle 9 is sleeved on the inner tube of the nozzle 8. The nozzle component 10 is slidably engaged with the other end of the outer tube of the nozzle 9. The reversing assembly 11 is located at the inner tube of the nozzle and has a reversing end that can rotate relative to the inner tube of the nozzle 8. The distribution component 12 is located at the inner tube of the nozzle and can rotate relative to the inner tube of the nozzle 8. The reversing end is engaged with the distribution component 12. The distribution component 12 is provided with a first water outlet 121. The axial end of the inner tube of the nozzle 8 is provided with a second water outlet 801 and a third water outlet 802. The radial inner wall surface of the inner tube of the nozzle 8 is provided with a fourth water outlet 803. The radial inner wall surface of the nozzle component 10 is provided with a spiral groove 1001. During the rotation of the reversing end of the reversing assembly 11, the distribution member 12 rotates and the position of the first water outlet 121 corresponds to the positions of the second water outlet 801 and the third water outlet 802 respectively, and the flushing nozzle presents the first spray state. When the reversing end of the reversing assembly 11 drives the distribution member 12 to rotate, causing the position of the first water outlet 121 to be misaligned with the positions of the second water outlet 801 and the third water outlet 802, and the position of the nozzle member 10 to be misaligned with the position of the fourth water outlet 803 of the nozzle inner tube 8, the flusher nozzle presents a second spray state. When the reversing end of the reversing assembly 11 drives the distribution member 12 to rotate, causing the position of the first water outlet 121 to be misaligned with the positions of the second water outlet 801 and the third water outlet 802, and the position of the nozzle member 10 to correspond to the position of the fourth water outlet 803 of the nozzle inner tube 8, the flusher nozzle presents a third spray state.

[0024] In this embodiment, the nozzle of the irrigator has one end of the nozzle connector assembly 6 connected to the irrigation fluid supply device. When the irrigation fluid provided by the irrigation fluid supply device flows inside the irrigator nozzle, it can drive the reversing end of the reversing assembly 11 to rotate relative to the inner tube 8 of the nozzle. Thus, the reversing end of the reversing assembly 11 can further drive the distribution member 12 to rotate. In conjunction with adjusting the relative position of the nozzle member 10 and the fourth water outlet 803 of the outer tube 9 of the nozzle, the first spray state, the second spray state, and the third spray state of the irrigator nozzle can be adjusted to adapt to the needs of different irrigation scenarios and meet the integration of various application scenarios such as wounds, medullary cavities, and chronic wounds.

[0025] The specific structure of the commutation component 11 in this embodiment is as follows: It includes a reversing blade 1101 and a reversing blade shaft 1102, wherein the reversing blade 1101 and the reversing blade shaft 1102 can be an integral structure or a separate connection structure. The reversing blade 1101 is rotatably installed in the inner tube 8 of the nozzle through the reversing blade shaft 1102. The reversing blade 1101 is arranged along the axial and radial directions of the inner tube 8 of the nozzle, and one end of the reversing blade 1101 is the reversing end.

[0026] Furthermore, a dispersion cone 804 is provided at the center of the end of the nozzle inner tube 8 in the axial direction. The inner wall surface of the nozzle inner tube 8 is provided with a shaft hole that cooperates with the reversing blade shaft 1102. In this embodiment, the number of reversing blades 1101 is four and they are arranged around the outer wall surface of the dispersion cone 804. The middle part of the sub-component 12 is provided with a mating hole 122 that rotates with the dispersion cone 804.

[0027] Based on the above structure, when the fluid supplied by the flushing liquid supply device flows inside the flushing nozzle, the fluid can rotate relative to the reversing blade shaft 1102 by acting on the reversing blade 1101, so that the reversing end can rotate relative to the inner tube 8 of the nozzle. Furthermore, the structure of the dispersion cone 804 can disperse the fluid to the periphery of the dispersion cone 804 when it flows inside the flushing nozzle, so as to better act on the reversing blade 1101. At the same time, the dispersion cone 804 rotates and cooperates with the distribution component 12 to ensure the stability of the distribution component 12 during the rotation process inside the inner tube 8 of the nozzle.

[0028] In addition, this embodiment can also limit the rotation angle of the reversing blade 1101. Specifically, a shaft mating hole 901 and a shaft limiting groove 902 are provided on the outer wall of the nozzle outer tube 9. The diameter of the shaft mating hole 901 is larger than the groove size of the shaft limiting groove 902. The shaft mating hole 901 and the shaft limiting groove 902 are connected. One end of the reversing blade shaft 1102 can mate with the shaft mating hole 901 or the shaft limiting groove 902.

[0029] In the above structure, the shaft limiting groove 902 is an elongated structure and is arranged along the length extension direction of the nozzle outer tube 9. One end of the reversing blade shaft 1102 has a shaft limiting part 1103. The width of the shaft limiting part 1103 is slightly larger than the groove opening size of the shaft limiting groove 902 and smaller than the diameter of the shaft mating hole 901. The above design can ensure that when the shaft limiting part 1103 is in the shaft mating hole 901, the reversing blade shaft 1102 can be positioned within the shaft mating hole 901. When the rotating shaft is rotated, the rotating shaft limiting part 1103 is in the rotating shaft limiting groove 902, which can restrict the rotation of the reversing blade rotating shaft 1102. Therefore, when the position of the nozzle part 10 corresponds to the position of the fourth water outlet part 803 of the nozzle inner tube 8, the rotating shaft limiting part 1103 cooperates with the rotating shaft limiting groove 902 to ensure the relative limiting of the position of the reversing blade 1101, and to ensure that the position of the first water outlet part 121 is misaligned with the positions of the second water outlet part 801 and the third water outlet part 802.

[0030] The specific structures of the first water outlet 121, the second water outlet 801, the third water outlet 802, and the fourth water outlet 803 in this embodiment are as follows: The first water outlet 121 of the sub-component 12 consists of four first spray channels that are evenly distributed along the radial direction of the sub-component 12 with the central axis of the sub-component 12 as the center. The second water outlet 801 of the nozzle inner tube 8 consists of four second liquid spray channels, which are evenly distributed along the radial direction of the nozzle inner tube 8 with the central axis of the nozzle inner tube 8 as the center. The third water outlet 802 of the nozzle inner tube 8 consists of four groups of axial liquid spraying through holes, which are evenly distributed along the radial direction of the nozzle inner tube 8 with the central axis of the nozzle inner tube 8 as the center. Each group of axial liquid spraying through holes includes multiple axial liquid spraying through holes. The fourth water outlet 803 of the nozzle inner tube 8 consists of four radial spray holes that are evenly distributed along the radial direction of the nozzle inner tube 8 with the central axis of the nozzle inner tube 8 as the center. The first and second spray channels are elongated strips in shape.

[0031] Based on the above structure: when the irrigator nozzle is in the first spray state, the first spray channel on the distributor 12 and the second spray channel and axial spray hole group at the axial end of the nozzle inner tube 8 overlap respectively, thereby realizing the first spray state of strip-shaped spray liquid flow and dot-matrix spray liquid flow respectively. When multiple spray liquid flow combinations are required in surgery, the effects of strip-shaped spray irrigation and dot-matrix spray irrigation can be achieved.

[0032] When the flushing nozzle is in the second spray state, the inner tube 8 of the nozzle is pushed away from the nozzle connector assembly 6 along the outer tube 9 of the nozzle. At this time, the shaft limiting part 1103 is in the shaft limiting groove 902 and limits the rotation of the reversing blade shaft 1102. At this time, the reversing blade 1101 is parallel to the fluid flow direction. At the same time, the position of the first water outlet 121 is offset from the positions of the second water outlet 801 and the third water outlet 802. That is, the distribution part 12 blocks the second water outlet 801 and the third water outlet 802 of the inner tube 8 of the nozzle. When the fluid provided by the flushing liquid supply device reaches the end of the inner tube 8 of the nozzle, the fluid is sprayed out from the fourth water outlet 803 of the inner tube 8 of the nozzle, realizing the radial flushing of the inner wall of the medullary cavity.

[0033] When the rinsing nozzle is in the third spray state, based on the second spray state of the rinsing nozzle, the nozzle component 10 is pushed to move away from the nozzle connector assembly 6. At this time, the position of the nozzle component 10 corresponds to the position of the fourth water outlet 803 of the inner tube 8 of the nozzle. The structure of the spiral groove 1001 of the nozzle component 10 and the inner tube 8 of the nozzle form a spiral water outlet channel. The fluid flows through the spiral structure of the water outlet channel and is accelerated and sprayed out instantly to achieve pressure reduction and atomization, forming a cone-shaped mist. This low-pressure mist spray can be used to rinse slow wounds or wounds in the healing process.

[0034] In this embodiment, the specific structure for driving the distribution member 12 to rotate at the commutation end of the commutation assembly 11 is as follows: A water-blocking component is provided at the end face of the distribution component 12, which can abut against the reversing end of the reversing component 11. The water-blocking component includes two water-blocking plates 123. The water-blocking plates 123 are provided with a guide cone surface structure. The water-blocking plates 123 and the reversing blades 1101 on both sides form a water-blocking channel 124 respectively. When the flushing nozzle is in the second spray state, the position of the water blocking channel 124 corresponds to the position of the fourth water outlet 803 of the nozzle inner tube 8.

[0035] With the above structure, when the reversing blade 1101 abuts against the baffle plate 123, the distributor 12 can rotate, and the baffle channel 124 can concentrate the fluid to flow out from the fourth water outlet 803. At the same time, the baffle plate 123 can block the fluid, increase the concentration of the fluid flow at the baffle plate 123, better act on the reversing blade 1101 at this position to rotate, and improve the effect of driving the distributor 12 to rotate.

[0036] In this embodiment, the inner wall surface of the nozzle component 10 is provided with a first sliding limiting groove 1002, and the outer wall surface of the other end of the nozzle outer tube 9 is provided with a first limiting post 903 that can cooperate with the first sliding limiting groove 1002. The outer tube 9 of the nozzle and the inner tube 8 of the nozzle are slidably engaged. A second sliding limiting groove 904 is provided on the outer wall surface of the outer tube 9. A plurality of limiting grooves 905 are provided in the second sliding limiting groove 904. A second limiting post 805 is provided on the outer wall surface of the inner tube 8 of the nozzle, which can cooperate with the limiting grooves 905. Long grooves 906 are provided on both sides of the second sliding limiting groove 904. When the outer tube 9 and the inner tube 8 of the nozzle slide relative to each other, the second limiting post 805 separates from one limiting groove 905 and can elastically deform the second sliding limiting groove 904, so that the second limiting post 805 moves in the second sliding limiting groove 904 and cooperates with another limiting groove 905.

[0037] Specifically, the outer wall surface of the nozzle component 10 is provided with several anti-slip textured protrusions 1003.

[0038] According to the above structure, the structure of the first sliding limiting groove 1002 and the first limiting post 903 can limit the travel of the nozzle component 10 and the outer tube 9 of the nozzle head. The cooperation structure of the second sliding limiting groove 904 and the second limiting post 805, through the cooperation of the second limiting post 805 with the limiting groove 905 at each position, can limit and adjust the relative position between the outer tube 9 of the nozzle head and the inner tube 8 of the nozzle head. The structure of the anti-slip texture protrusion 1003 makes it easier for the nozzle component 10 to move relative to the outer tube 9 of the nozzle head. At the same time, the structure of the long groove 906 makes it easier for the second sliding limiting groove 904 to undergo elastic deformation.

[0039] The nozzle connector assembly 6 in this embodiment includes an inner nozzle connector 601 and an outer nozzle connector 602. The outer nozzle connector 602 is sleeved on the inner nozzle connector 601. The inner nozzle connector 601 is connected to the spray pipe 7. The outer nozzle connector 602 is connected to the inner nozzle tube 8 and the outer nozzle tube 9.

[0040] Example 2: like Figure 11-18As shown, this embodiment provides an electric pulse flusher, including a flusher piston pump and a flusher nozzle as described in Embodiment 1 above. The flusher piston pump is connected to the nozzle connector assembly 6 of the flusher nozzle. The flusher piston pump includes a pump front cover 1, a pump body 2, a piston 3, and a one-way valve 4. The pump front cover 1 is connected to the pump body 2 to form a cavity 5; The pump body 2 is provided with a piston cylinder 201, a water inlet channel 202 and a transverse diaphragm 203. The piston cylinder 201 and the water inlet channel 202 are connected to the cavity 5, and the transverse diaphragm 203 is located inside the cavity 5. The pump front cover 1 is provided with a water outlet channel 101, which is connected to the cavity 5; One-way valves 4 are respectively installed at the water inlet channel 202 and the water outlet channel 101; Piston component 3 is in sliding fit with piston cylinder 201; The water inlet channel 202 is connected to the output end of the flushing liquid supply device mentioned in Example 1, and the water outlet channel 101 is connected to the nozzle connector assembly 6 of the flushing nozzle.

[0041] The structure of the flushing piston pump in this embodiment, with the transverse partition 203 installed in the cavity 5, can suppress the turbulence of the liquid in the cavity 5 and regulate the pressure during the pump's water intake and spraying process, so as to achieve high efficiency and high pressure in the water intake and spraying process.

[0042] Specifically, the piston pump described above has a sealed cavity 5 formed by the cooperation of the pump front cover 1, pump body 2, piston 3 and one-way valve 4.

[0043] Based on the above structure, the specific working principle of this embodiment is as follows: During the water intake process of the piston pump, the piston cylinder 201 moves away from the cavity 5, creating a negative pressure inside the cavity 5. At this time, the one-way valve 4 at the water inlet channel 202 opens, and the one-way valve 4 at the water outlet channel 101 closes, allowing the flushing fluid to be drawn into the cavity 5 from the water inlet channel 202.

[0044] In a conventional piston pump without a diaphragm 203, the flushing fluid flows directly along the inner wall of the cavity 5 to the piston cylinder 201. During this process, eddies are formed inside the fluid. As the flow develops, some fluid enters the piston cylinder 201, while the rest flows forward along the eddy path, encountering the fluid that subsequently enters the pump body 2, generating turbulence. These two flow directions interfere with each other, significantly offsetting the kinetic energy of the fluid, resulting in a decrease in suction efficiency.

[0045] In the structure of this application with the added transverse diaphragm 203, after the flushing fluid enters the pump body 2, it is forced to flow along the outer periphery of the transverse diaphragm 203 towards the piston cylinder 201 chamber. At this time, the fluid state changes: part of the fluid directly enters the piston cylinder 201, while the other part forms a local small vortex within the piston cylinder 201 chamber. Compared to conventional solutions, the small vortex formed in this embodiment creates a mutually reinforcing vortex motion with the mainstream fluid entering the piston cylinder 201, rather than canceling each other out. This coordinated fluid motion effectively improves the water absorption efficiency.

[0046] During the water spraying process of the piston pump, the piston cylinder 201 moves towards the cavity 5, creating positive pressure within the cavity 5. At this time, the one-way valve 4 at the inlet channel 202 closes, and the one-way valve 4 at the outlet channel 101 opens, allowing the rinsing fluid to spray out from the outlet channel 101. Furthermore, due to the structure of the diaphragm 203, the rinsing fluid is momentarily isolated by the diaphragm 203 at a spatial position within the cavity 5 near the piston cylinder 201 during its flow. This isolation effect of the diaphragm 203 causes the pressure within the cavity 5 at that position to rise instantaneously, resulting in the rinsing fluid being sprayed out at high speed from the outlet channel 101, forming a high-pressure pulsed water flow for rinsing the surgical wound.

[0047] In this embodiment, the piston cylinder 201, water inlet channel 202, and transverse diaphragm 203 are arranged in parallel. One end of the transverse diaphragm 203 faces the water outlet channel 101 of the pump front cover 1, and a space is provided between one end of the transverse diaphragm 203 and the inner wall of the cavity 5 located at the pump front cover 1. Based on the above structure, the height of the transverse diaphragm 203 and the size of the space between the transverse diaphragm 203 and the inner wall of the cavity 5 can be pre-adjusted. By using different parameters of the transverse diaphragm 203, turbulence can be suppressed and the pressure and flow rate of the piston pump can be controlled to adapt to different personalized clinical needs.

[0048] The one-way valve 4 in this embodiment has an umbrella-shaped one-way valve structure, including an elastic umbrella-shaped part 401 and an umbrella handle connecting part 402. The one-way valve 4 is connected to the pump front cover 1 and the pump body 2 through the umbrella handle connecting part 402. When the air pressure inside the cavity 5 changes, the elastic umbrella-shaped part 401 deforms and will be in an open or closed state.

[0049] Meanwhile, an assembly through hole 102 and a water passage hole 103 are provided at the water outlet channel 101 of the pump front cover 1 and the water inlet channel 202 of the pump body 2. The assembly through hole 102 cooperates with the umbrella handle connection part 402 of the one-way valve 4. Specifically, a neck 403 that cooperates with the assembly through hole 102 is provided on the umbrella handle connection part 402 of the one-way valve 4. The water passage holes 103 are evenly distributed around the assembly through hole 102. The water inlet channel 202 and the water outlet channel 101 are connected to the cavity 5 through the water passage holes 103. When the elastic umbrella-shaped part 401 deforms and is in an open state, the elastic umbrella-shaped part 401 moves away from the water passage hole 103. When the elastic umbrella-shaped part 401 deforms and is in a closed state, the elastic umbrella-shaped part 401 moves closer to and blocks the water passage hole 103.

[0050] Several annular grooves 301 are provided on the outer wall of the piston component 3 along its length, and sealing rings 302 are provided in the annular grooves 301. The piston component 3 reciprocates in the piston cylinder 201 under the drive of external power. The process of sucking liquid into the cavity 5 and squeezing and spraying the liquid in the cavity 5 under high pressure is completed by opening and closing the water inlet channel 202 and the water outlet channel 101. The sealing ring 302 cooperates with the piston cylinder 201. The sealing ring 302 can not only ensure the seal, but also flexibly guide the relative movement of the piston component 3 and the piston cylinder 201. During the piston movement, the movement range of the sealing ring 302 does not exceed the range of the piston cylinder 201.

[0051] The specific structure connecting the pump front cover 1 and the pump body 2 is as follows: The pump front cover 1 and the pump body 2 are connected by ultrasonic welding. The pump front cover 1 has an ultrasonic welding surface on its end face and a grid pattern 104 on the ultrasonic welding surface. The pump body 2 has a welding line 204 on its end face.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A flusher head, characterized in that, Includes nozzle connector assembly, spray pipe, inner nozzle tube, outer nozzle tube, nozzle components, reversing assembly, and distribution components; One end of the spray pipe, the inner nozzle tube, and the outer nozzle tube is connected to the nozzle connector assembly. The inner nozzle tube is coaxially disposed outside the spray pipe, and the outer nozzle tube is sleeved on the inner nozzle tube. The nozzle component is slidably engaged with the other end of the outer nozzle tube. The reversing assembly is disposed at the inner nozzle tube and has a reversing end that can rotate relative to the inner nozzle tube. The distribution component is disposed at the inner nozzle tube and can rotate relative to the inner nozzle tube. The reversing end engages with the distribution component. The distribution component has a first water outlet. The axial end of the inner nozzle tube has a second water outlet and a third water outlet. The radial inner wall of the inner nozzle tube has a fourth water outlet. The radial inner wall of the nozzle component has a spiral groove. During the process of the reversing end of the reversing assembly driving the distribution component to rotate, and when the position of the first water outlet corresponds to the positions of the second water outlet and the third water outlet respectively, the flushing nozzle presents a first spraying state. The reversing end of the reversing assembly drives the distribution member to rotate, causing the position of the first water outlet to be misaligned with the positions of the second and third water outlets, and the position of the nozzle member to be misaligned with the position of the fourth water outlet of the nozzle inner tube, when the flushing nozzle presents a second spraying state. The reversing end of the reversing assembly drives the distribution member to rotate, causing the position of the first water outlet to be misaligned with the positions of the second and third water outlets, and the position of the nozzle member to correspond to the position of the fourth water outlet of the nozzle inner tube, when the flushing nozzle presents a third spray state.

2. The flusher head of claim 1, wherein, The reversing assembly includes a reversing blade and a reversing blade shaft. The reversing blade is assembled inside the nozzle inner tube via the reversing blade shaft. The reversing blade is arranged along the axial and radial directions of the nozzle inner tube, and one end of the reversing blade is the reversing end.

3. The flusher head of claim 2, wherein, A dispersion cone is provided at the center of the axial end of the inner tube of the nozzle, and a shaft hole is provided on the inner wall of the inner tube of the nozzle to cooperate with the shaft of the reversing blade. There are two or more reversing blades and they are arranged around the outer wall of the dispersion cone. The middle part of the distribution component is provided with a mating hole that rotates with the dispersing cone.

4. The flusher head of claim 2, wherein, The outer wall of the nozzle outer tube is provided with a rotating shaft mating hole and a rotating shaft limiting groove. The diameter of the rotating shaft mating hole is larger than the opening size of the rotating shaft limiting groove. The rotating shaft mating hole and the rotating shaft limiting groove are connected. One end of the reversing blade rotating shaft can mate with the rotating shaft mating hole or the rotating shaft limiting groove.

5. The flushing nozzle according to claim 1, characterized in that, The first water outlet of the distribution component consists of several first spray channels evenly distributed around the central axis of the distribution component and along the radial direction of the distribution component. The second water outlet section of the nozzle inner tube consists of several second liquid spray channels that are centered on the central axis of the nozzle inner tube and evenly distributed along the radial direction of the nozzle inner tube. The third water outlet of the nozzle inner tube consists of several axial spray holes that are centered on the central axis of the nozzle inner tube and evenly distributed along the radial direction of the nozzle inner tube. The fourth water outlet of the nozzle inner tube consists of several radial spray holes that are centered on the central axis of the nozzle inner tube and are evenly distributed along the radial direction of the nozzle inner tube. The first and second spray channels are elongated strips in shape.

6. The flushing nozzle according to claim 5, characterized in that, A water-blocking component is provided at the end face of the distribution component, which can abut against the reversing end of the reversing assembly. The water-blocking component includes two water-blocking plates, each with a guide cone structure. The water-blocking plates form water-blocking channels with the reversing assemblies on both sides. When the flushing nozzle is in the second spray state, the position of the water-blocking channel corresponds to the position of the fourth water outlet of the nozzle inner tube.

7. The flushing nozzle according to claim 1, characterized in that, The inner wall of the nozzle component is provided with a first sliding limiting groove, and the outer wall of the other end of the nozzle outer tube is provided with a first limiting post that can cooperate with the first sliding limiting groove. The outer tube of the nozzle is slidably fitted with the inner tube of the nozzle. A second sliding limiting groove is provided on the outer wall surface of the outer tube of the nozzle, and a plurality of limiting grooves are provided in the second sliding limiting groove. A second limiting post is provided on the outer wall surface of the inner tube of the nozzle, which can cooperate with the limiting groove. Long grooves are provided on both sides of the second sliding limiting groove. When the outer tube of the nozzle and the inner tube of the nozzle slide relative to each other, the second limiting post separates from one of the limiting grooves and can elastically deform the second sliding limiting groove, so that the second limiting post moves in the second sliding limiting groove and cooperates with the other limiting groove.

8. The flushing nozzle according to claim 1, characterized in that, The outer wall surface of the nozzle component is provided with several anti-slip textured protrusions.

9. The flushing nozzle according to claim 1, characterized in that, The nozzle connector assembly includes an inner nozzle connector and an outer nozzle connector. The outer nozzle connector is sleeved on the inner nozzle connector. The inner nozzle connector is connected to the spray pipe. The outer nozzle connector is connected to both the inner and outer nozzle pipes.

10. An electric pulse flushing device, characterized in that, It includes a flushing piston pump and a flushing nozzle as described in any one of claims 1-9, wherein the flushing piston pump is connected in conjunction with the nozzle connector assembly of the flushing nozzle.

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