Urinary calculus flushing device and flushing method

Abstract

The urinary calculus flushing device comprises a flushing pipe, a flushing box and a backflow box, the flushing pipe comprises an outer filling cavity and a backflow cavity, the rear end of the outer flushing cavity is communicated with the flushing box, the rear end of the backflow cavity is communicated with the backflow box, an outer supporting plate is arranged at the front end of the flushing pipe, and the outer supporting plate is rotationally connected with two inner supporting plates; a first flushing head and a second flushing head are connected between the two inner supporting plates, and the first flushing head and the second flushing head can form a scissor shape; transfer cavities are formed in the first flushing head and the second flushing head and communicated with the outer flushing cavity through connecting hoses, and flushing holes are formed in the inner concave arc faces of the first flushing head and the second flushing head. By means of the structure, the problems that the calculus flows deeper and is more difficult to clean due to the fact that the calculus is washed and flushed in the reverse direction can be avoided, in addition, in the calculus holding process, the calculus can be broken, subsequent thorough flushing is facilitated, in addition, when the calculus is flushed, the calculus is actively grabbed, and the situation that the calculus is adhered and cannot be flushed is avoided.

Description

Technical Field

[0001] The present invention belongs to the field of medical technology, and in particular relates to a urinary stone flushing device and a flushing method. Background Art

[0002] Stones are solid masses formed in the lumen of ducts or in the cavities of cavitary organs (such as the kidneys, ureters, gallbladders, or bladders) in the human body. They can cause obstruction of the lumen, affect the discharge of fluid from the affected organs, and cause symptoms such as pain, bleeding, or secondary infection. Therefore, after the stones are formed, they need to be crushed and the treated stones need to be flushed during the process.

[0003] During the treatment and flushing of urinary stones, a stone flushing device is used to flush the stones. However, in actual implementation, current urinary stone flushing devices have areas that need improvement: when the flushing tube is inserted from the bottom into the ureter for flushing, the stones are easily flushed upward, affecting the outflow of the stones and easily causing incomplete flushing. In addition, the device cannot be used to crush the stones at the same time during flushing, and its functionality needs to be enhanced. Summary of the Invention

[0004] In view of the deficiencies and defects in the prior art, the purpose of the present invention is to provide a urinary stone flushing device, which solves the problem that the flushing tube of the urinary stone flushing device in the prior art is easily flushed upward when inserted into the ureter from the lower end for flushing, affecting the outflow of the stones and easily causing incomplete flushing; and the problem that the flushing tube cannot be used to crush the stones at the same time when flushing the stones, and the functionality needs to be enhanced.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme: a urinary calculus flushing device, comprising a flushing pipe, a flushing box and a reflux box, the flushing pipe comprises an inner pipe and an outer pipe, an outer flushing cavity is formed in the inner pipe, a reflux cavity is formed between the outer pipe and the inner pipe, the rear end of the outer flushing cavity is communicated with the flushing box, the rear end of the reflux cavity is communicated with the reflux box, the front end of the flushing pipe is provided with two outer support plates, two inner support plates are rotatably connected between the two outer support plates, a first flushing head and a second flushing head are connected between the two inner support plates, the first flushing head is fixedly arranged between the two inner support plates, the second flushing head is rotatably arranged between the two inner support plates, the first flushing head and the second flushing head are the same in structure and are symmetrically arranged, the cross-sectional shape of the first flushing head and the second flushing head is crescent-shaped, one extrusion air block is arranged on one side of the inner concave arc surface of the first flushing head and the second flushing head, one cat ear-shaped crushing block is arranged on one side of the outer convex arc surface of the first flushing head and the second flushing head, when the second flushing head rotates counterclockwise, the crushing block of the first flushing head and the crushing block of the second flushing head can be in contact and abutment, the side of the two crushing blocks in contact and abutment forms a first extrusion surface, when the second flushing head rotates clockwise, the first flushing head and the second flushing head can form a scissors shape, and the extrusion air block of the first flushing head and the extrusion air block of the second flushing head can be in contact and abutment; a transfer cavity is arranged in the first flushing head and the second flushing head, the transfer cavity is communicated with the outer flushing cavity through a connecting hose, a plurality of flushing holes in communication with the transfer cavity are arranged on the inner concave arc surface of the first flushing head and the second flushing head.

[0006] As a further improvement of the present application, a plurality of suction inlets are arranged on the side wall of the outer pipe and the front end of the outer pipe, and the suction inlets are communicated with the reflux cavity.

[0007] As a further improvement of the present application, the suction inlets are arranged to be inclined to the rear end gradually from the outer wall to the inner wall of the outer pipe.

[0008] As a further improvement of the present application, the bottom of the outer support plate is fixed on the flushing pipe.

[0009] As a further improvement of the present application, each inner support plate is rotatably connected with the outer support plate through a first rotating shaft, and the first rotating shaft is connected with a first motor.

[0010] As a further improvement of the present application, the second flushing head is rotatably connected with the inner support plate through a second rotating shaft, and the second rotating shaft is connected with a second motor.

[0011] A flushing method for flushing calculus by using a urinary calculus flushing device mainly comprises the following steps: (1) rotate the second flushing head, so that the first flushing head and the second flushing head reach the closed limit state, rotate the adjusting inner support plate, so that the opening end of the first flushing head and the second flushing head faces forward, and the first flushing head and the second flushing head are at the front end of the flushing pipe, insert the flushing pipe into the ureter; (2) make the first flushing head and the second flushing head reach the rear side of the stone; (3) rotate the second flushing head to open, so that the first flushing head and the second flushing head are in the open scissors state, so as to wrap the stone, move the flushing pipe forward, and wrap the stone with the first flushing head and the second flushing head; (4) rotate the second flushing head to close the second flushing head to the first flushing head, and the first flushing head and the second flushing head clamp the stone; (5) rotate the inner support plate to rotate the opening end of the first flushing head and the second flushing head to the direction of the flushing pipe, continue to rotate the second flushing head to the direction of the first flushing head, so that the first flushing head and the second flushing head are further closed, the stone is broken, and then the second flushing head is reversely rotated, so that the first flushing head and the second flushing head are opened, and the stone is loosened; (6) open the flushing box and the reflux box, the flushing liquid in the flushing box flows through the flushing pipe and the transfer cavity, and flows out from the flushing holes of the first flushing head and the second flushing head into the ureter, and then the flushing liquid carries the stone to flow to the reflux cavity, and finally flows to the reflux box; (7) if the stone in the ureter is washed clean, close the flushing box and the reflux box, and pull out the flushing pipe, if there is a stone in other positions of the ureter, return to step (2).

[0012] As a further improvement of the application, in step (6), during the flushing of the flushing liquid, the flushing pipe is pulled back while flushing, and the first flushing head and the second flushing head scrape the ureter wall during movement.

[0013] As a further improvement of the application, after step (3), if the stone is still adhered to the ureter wall, the following steps are further included: close the first flushing head and the second flushing head, move the flushing pipe, use the first flushing head and the second flushing head to scrape the stone, and then return to step (2).

[0014] As a further improvement of the application, if the extrusion of the extrusion air block of the first flushing head and the second flushing head cannot break the stone, move the flushing pipe to the front end, rotate the inner support plate and the second flushing head, so that the stone is located at the rear of the two breaking blocks, move the flushing pipe backward, and rotate the second flushing head, so that the two breaking blocks extrude and break the stone, then reversely rotate the second flushing head to loosen the stone, then move the flushing pipe forward, continue to rotate the second flushing head and the inner support plate, so that the opening end of the first flushing head and the second flushing head is rotated to the direction of the flushing pipe; then step (6) is performed.

[0015] Compared with the prior art, the present application has the following advantages: 1. By setting the flushing pipe and setting the flushing pipe as the structure of the inner pipe and the outer pipe, the outer flushing cavity is formed inside the inner pipe structure to be able to deliver the flushing liquid outward, the reflux cavity is formed between the inner pipe and the outer pipe to be able to reflux the flushing liquid and the calculus, the outer support plate is set at the front end of the flushing pipe, the inner support plate is rotatably arranged between the outer support plates, a first flushing head is fixedly arranged on the inner support plate, and a second flushing head is rotatably connected at the same time, and the first flushing head and the second flushing head are crescent-shaped, so that during flushing, the flushing pipe is first inserted into the ureter, then the first flushing head and the second flushing head are in an open state, then the second flushing head is rotated to hold the calculus, the inner support plate is rotated, the first flushing head and the second flushing head are rotated towards one end of the flushing pipe, then the first flushing head and the second flushing head are loosened, and then the flushing tank is opened for flushing; this arrangement can avoid the problem of flushing the calculus in the opposite direction, causing the calculus to flow deeper and making it more difficult to clean, can break the calculus into smaller particles during the process of holding the calculus, facilitate subsequent flushing, avoid damage to the ureter wall during flushing, actively grasp the calculus during flushing, avoid the situation that the calculus is adhered and cannot be flushed, and use the flushing pipe to guide the reflux of the calculus and the flushing liquid during the reflux of the calculus and the flushing liquid, reduce the damage to the ureter wall and the flushing pressure, and reduce the secondary adhesion of the calculus during transportation in the ureter; one structure can complete multiple operation modes and functions, and multiple methods can increase the completeness of flushing and cleaning of the calculus and reduce damage to the ureter.

[0016] The first flushing head and the second flushing head are crescent-shaped, which can form a holding area on the inner concave surface of the first flushing head and the second flushing head when the crescent-shaped grooves of the first flushing head and the second flushing head face each other and close, facilitating the holding of the calculus; when the first flushing head and the second flushing head are downward and the flushing tank is opened to flush the ureter, an umbrella shape is formed, which can increase the jet surface and block the reflux of the flushing liquid, avoid the calculus being carried to a deeper place, and improve the cleaning ease; when there are multiple calcifications adhered to the ureter wall, the first flushing head and the second flushing head are arranged in an umbrella shape and can move up and down, which can scrape the ureter wall and can flush and scrape the ureter wall at the same time to remove stubborn calcifications.

[0017] The extrusion air block is arranged on the inner concave surface of the first flushing head and the second flushing head, the breaking block is arranged on the outer convex surface of the first flushing head and the second flushing head, and the extrusion air block is elastically deformed, which can extrude and break the calculus softly when holding the calculus, reduce the resistance to the closing of the first flushing head and the second flushing head, increase the contact and holding adhesion of the calculus, and reduce the slipping of the calculus. And the setting of the broken block, first, when the stone needs to be broken with more force, the broken block can be moved to the position of the stone and the stone can be clamped and broken, second, when the first and second flushing heads form an umbrella shape to spray liquid downward for flushing, the broken block forms a groove area above, which can clamp the fallen stones, break them, rotate the second flushing head and the inner support plate, and then convey the stones downward, making it convenient for the flushing of the stones.

[0018] 2. By gradually inclining the suction port downward from outside to inside, the suction port is directly opposite the flushing flow direction of the flushing liquid, facilitating the flow of the flushing liquid.

[0019] 3. The flushing method for flushing stones using the urinary stone flushing device can hold and break the stones, and then flush the stones after turning them, breaking the traditional inertia of directly flushing the stones, avoiding the problem of more difficult cleaning caused by flushing the stones to a deeper position in the opposite direction; and in the flushing process, the flushing pipe is directly used to return the flushing liquid, reducing the secondary adhesion of the stones to the ureter wall during the movement of the stones in the ureter, facilitating the thoroughness of the flushing and cleaning of the stones, and reducing the direct damage of the stones to the ureter wall and the pressure damage of the flushing liquid to the ureter wall, so that the removal of the stones is more thorough and safe.

[0020] 4. By scraping the ureter wall while flushing the stones, it is beneficial to push the stones outward, reduce the adhesion of the stones to the ureter wall during the flushing process, and facilitate more thorough removal of the stones.

[0021] 5. By using the device to scrape the ureter wall, the removal of stubborn stones adhering to the ureter can be completed, which is suitable for various medical situations, reduces the operation steps, and removes the stones more thoroughly.

[0022] 6. By rotating the second flushing head, the breaking of the stones can be completed, and after the stones are broken into small particles, the flushing is more thorough, the operation steps are reduced, the influence of back and forth tool switching on the ureter wall of the patient is reduced, and the flushing effect and efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described below in conjunction with the drawings: Figure 1 The structure of the application is shown in the figure; Figure 2 The Figure 1 The enlarged view at A; Figure 3 The Figure 1 The enlarged view at B; Figure 4 The Figure 1A schematic diagram of a partial cross-sectional structure at the first flushing head; Figure 5 It is a structural diagram of the first flushing head and the second flushing head during the flushing process; In the figure: 1. Flushing pipe; 101. Inner pipe; 102. Outer pipe; 2. Flushing box; 3. External flushing cavity; 4. Reflux cavity; 5. Reflux box; 6. External support plate; 7. Internal support plate; 8. First flushing head; 9. Second flushing head; 10. Extruded gas block; 11. Crushing block; 12. Transfer cavity; 13. Flushing hole; 15. Suction port; 16. First rotating shaft; 17. Second rotating shaft. DETAILED DESCRIPTION

[0024] The following is combined with Figures 1-5 The present invention will be described in further detail. For a clearer illustration, only the structures related to the invention of the present invention are shown in the figures.

[0025] For the convenience of description, the coordinate system is defined as follows Figure 1 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0026] The embodiment of the present invention discloses a urinary stone flushing device. Figure 1 、 Figure 4 and Figure 5 A urinary stone flushing device includes a flushing pipe 1, a flushing box 2 and a reflux box 5. The flushing box 2 is provided with a flushing pump for providing power to the flushing liquid. The flushing box 2 can be a commonly used flushing box 2 in the prior art. Figure 1 and Figure 3 As shown, the flushing pipe 1 includes an inner tube 101 and an outer tube 102, an outer flushing cavity 3 is formed in the inner tube 101, and a reflux cavity 4 is formed between the outer tube 102 and the inner tube 101. The rear end of the outer flushing cavity 3 is connected to the flushing box 2 through a second hose 16, and a reflux pump is provided on the flushing box 2 (not shown in the drawing). The design principle and structure of the reflux box 5 and the reflux pump are the same as those in the prior art. The rear end of the reflux cavity 4 is connected to the reflux box 5 through a first hose 15. Two outer support plates 6 are provided at the front end of the flushing pipe 1, and the bottom of the outer support plate 6 is fixed on the flushing pipe 1.

[0027] Two inner support plates 7 are rotatably connected between the two outer support plates 6, and a first flushing head 8 and a second flushing head 9 are connected between the two inner support plates 7. The first flushing head 8 is fixedly arranged between the two inner support plates 7, and the second flushing head 9 is rotatably arranged between the two inner support plates 7. The first flushing head 8 and the second flushing head 9 have the same structure between the inner support plates 7 and are symmetrically arranged.

[0028] When set, each of the inner support plates 7 is rotatably connected with the outer support plate 6 through a first rotating shaft 16, and the first rotating shaft 16 is connected with a first motor (not shown in the drawing), which is used to drive the inner support plate 7 to rotate. The second washing head 9 is rotatably connected with the inner support plate 7 through a second rotating shaft 17, and the second rotating shaft 17 is connected with a second motor. The second motor is used to drive the second washing head 9 to rotate relative to the inner support plate 7.

[0029] As shown in Figure 1 and Figure 2 , the cross-sectional shape of the first washing head 8 and the second washing head 9 is crescent-shaped, and one extrusion air block 10 is arranged on the inner concave arc surface side of the first washing head 8 and the second washing head 9. The extrusion air block 10 is provided with gas, and one cat ear-shaped crushing block 11 is arranged on the outer convex arc surface side of the first washing head 8 and the second washing head 9. The crushing block 11 is made of hard rubber material, has a certain elasticity, and can maintain relatively strong strength. When the second washing head 9 rotates counterclockwise, the crushing block 11 of the first washing head 8 and the crushing block 11 of the second washing head 9 can contact and abut, and the side of the two crushing blocks 11 abutting when contacting forms a first extrusion surface. When the second washing head 9 rotates clockwise, the first washing head 8 and the second washing head 9 can form a scissors shape, and the extrusion air block 10 of the first washing head 8 and the extrusion air block 10 of the second washing head 9 can contact and abut. When set, the extrusion air block 10 should avoid interfering with the washing hole 13, for example, the washing hole 13 can penetrate the extrusion air block 10, or the extrusion air block 10 can avoid the washing hole 13 in the natural open state. The first washing head 8 and the second washing head 9 are provided with a middle transfer cavity 12, the middle transfer cavity 12 is communicated with the outer washing cavity 3 through a connecting hose 14, and the inner concave arc surface of the first washing head 8 and the second washing head 9 is provided with a plurality of washing holes 13 communicated with the middle transfer cavity 12. The washing liquid in the washing box 2 flows into the middle transfer cavity 12 of the first washing head 8 and the second washing head 9 through the washing pipe 1, and flows out from the washing hole 13.

[0030] In addition, as shown in Figure 3 , a plurality of suction inlets 15 are arranged on the side wall of the outer pipe 102 and the front end of the outer pipe 102, and the suction inlets 15 are communicated with the backflow cavity 4. The suction inlets 15 are gradually inclined from the outer wall to the inner wall of the outer pipe 102 to the rear end; then the suction inlets 15 are opposite to the washing flow direction of the washing liquid, which is convenient for the flow of the washing liquid.

[0031] The present application sets the flushing pipe 1, and sets the flushing pipe 1 as the structure of the inner tube 101 and the outer tube 102, the outer flushing cavity 3 is formed inside the inner tube 101 structure, so that the flushing liquid can be transported outward, the reflux cavity 4 is formed between the inner tube 101 and the outer tube 102, so that the flushing liquid and the stone can be refluxed, the outer support plate 6 is arranged at the front end of the flushing pipe 1, the inner support plate 7 is rotatably arranged between the outer support plate 6, a first flushing head 8 is fixedly arranged on the inner support plate 7, and a second flushing head 9 is rotatably connected, and the first flushing head 8 and the second flushing head 9 are crescent-shaped, so that during flushing, the flushing pipe 1 is inserted into the ureter first, then the first flushing head 8 and the second flushing head 9 are in the open state, then the second flushing head 9 is rotated to hold the stone, the inner support plate 7 is rotated, the first flushing head 8 and the second flushing head 9 are rotated to one end of the flushing pipe 1, then the first flushing head 8 and the second flushing head 9 are loosened, then the flushing box 2 is opened for flushing; this arrangement can avoid the problem that the stone is flushed in the opposite direction, causing the stone to flow deeper and being more difficult to clean, and can break the stone into smaller particles during the process of holding the stone, facilitating subsequent flushing and avoiding damage to the ureter wall during flushing; actively grabbing the stone during flushing can avoid the situation that the stone is adhered and cannot be flushed; during stone flushing and reflux, the flushing pipe 1 guides the reflux of the stone and the flushing liquid, reduces the damage of the flushing liquid and the stone to the ureter wall and the flushing pressure, and reduces the secondary adhesion of the stone during transportation in the ureter; one structure can complete multiple operation modes and functions, and multiple methods can increase the completeness of stone flushing and cleaning and reduce damage to the ureter.

[0032] The first flushing head 8 and the second flushing head 9 are crescent-shaped, which can form a holding area on the inner concave surface of the first flushing head 8 and the second flushing head 9 when the crescent-shaped grooves of the first flushing head 8 and the second flushing head 9 face each other and close, facilitating the holding of the stone; when the first flushing head 8 and the second flushing head 9 are downward and the flushing box 2 is opened to flush the ureter, an umbrella shape is formed, which can block the reflux of the flushing liquid and avoid the stone being carried to a deeper place, improving the cleaning ease; when multiple stones are adhered to the ureter wall, the first flushing head 8 and the second flushing head 9 are arranged in an umbrella shape and can move up and down, which can scrape the ureter wall, or can flush and scrape the ureter wall at the same time to remove stubborn stones.

[0033] And the extrusion air block 10 is arranged on the inner concave arc surface of the first flushing head 8 and the second flushing head 9, and the crushing block 11 is arranged on the outer convex arc surface of the first flushing head 8 and the second flushing head 9, and the extrusion air block 10 is elastically deformed, which can extrude and crush the stone in a soft manner when the stone is gripped, and can reduce the resistance to the closing of the first flushing head 8 and the second flushing head 9, and can increase the contact and adhesion of the stone, and reduce the slipping of the stone; And the crushing block 11 is arranged, which can be moved to the position of the stone and clamp and crush the stone when the crushing force needs to be increased, and the crushing block 11 forms a groove area above when the first flushing head 8 and the second flushing head 9 form an umbrella shape to spray liquid downward for flushing, so that the fallen stone can be clamped and crushed, and then the second flushing head 9 and the inner support plate are rotated, and the stone is conveyed downward, so that the stone is flushed completely.

[0034] The urinary stone flushing device is used for flushing the stone, and the flushing method mainly includes the following steps: (1) The second flushing head 9 is rotated to make the first flushing head 8 and the second flushing head 9 reach a closed limit state, the inner support plate 7 is rotated to make the opening ends of the first flushing head 8 and the second flushing head 9 face forward, and the flushing pipe 1 is inserted into the ureter; (2) The first flushing head 8 and the second flushing head 9 reach the rear side of the stone; (3) The second flushing head 9 is rotated to make the first flushing head 8 and the second flushing head 9 present a scissors state in an open state, so as to wrap the stone, and the flushing pipe 1 is moved forward to wrap the stone with the first flushing head 8 and the second flushing head 9; (4) The second flushing head 9 is rotated to close the first flushing head 8, and the first flushing head 8 and the second flushing head 9 clamp the stone; (5) The inner support plate 7 is rotated to make the opening ends of the first flushing head 8 and the second flushing head 9 face the flushing pipe 1, the second flushing head 9 is continuously rotated towards the first flushing head 8 to make the first flushing head 8 and the second flushing head 9 further close, the stone is crushed, then the second flushing head 9 is reversely rotated to make the first flushing head 8 and the second flushing head 9 open, and the stone is released; (6) The flushing tank 2 and the reflux tank 5 are opened, the flushing liquid in the flushing tank 2 flows through the flushing pipe 1 and the transfer cavity 12, and flows out from the flushing holes 13 of the first flushing head 8 and the second flushing head 9 into the ureter, then the flushing liquid flows into the reflux cavity 4 with the stone, and finally flows to the reflux tank 5; (7) If the stone in the ureter is flushed clean, the flushing tank 2 and the reflux tank 5 are closed, and the flushing pipe 1 is pulled out, if there is a stone in other positions of the ureter, the step (2) is returned.

[0035] The flushing method for flushing the calculus by using the urinary calculus flushing device can hold the stone, turn the stone, flush and crush the stone, break the stone into smaller particles, break the traditional inertia of directly flushing the calculus, avoid the problem of more difficult cleaning caused by flushing the calculus to a deeper position in the opposite direction, directly use the flushing pipe 1 to return the flushing liquid during the flushing process, reduce the secondary adhesion of the calculus on the ureter wall during the movement of the calculus in the ureter, facilitate the thoroughness of the flushing and cleaning of the calculus, and reduce the direct damage of the calculus to the ureter wall and the pressure damage of the flushing liquid to the ureter wall, so that the removal of the calculus is more thorough and safe.

[0036] In addition, in step (6), the flushing pipe 1 is pulled back during the flushing of the flushing liquid, and the first flushing head 8 and the second flushing head 9 scrape the ureter wall during the movement.

[0037] By scraping the ureter wall during the flushing process and flushing the calculus, the calculus can be pushed outward, the adhesion of the calculus on the ureter wall during the flushing process is reduced, and the removal of the calculus is more thorough.

[0038] In addition, after step (3), if the calculus is still adhered to the ureter wall, the following steps are further included: closing the first flushing head 8 and the second flushing head 9, moving the flushing pipe 1, using the first flushing head 8 and the second flushing head 9 to scrape the calculus, scraping the calculus, and then returning to step (2).

[0039] By using the scraping of the ureter wall by the device, the removal of the stubborn calculus adhered to the ureter can be completed, various medical situations can be applied, the operation steps are reduced, and the removal of the calculus is more thorough.

[0040] In addition, if the extrusion of the extrusion air block 10 of the first flushing head 8 and the second flushing head 9 cannot crush the calculus, the flushing pipe 1 is moved to the front end, the inner support plate 7 and the second flushing head 9 are rotated, the calculus is located directly behind the two crushing blocks 11, the flushing pipe 1 is moved backward, the second flushing head 9 is rotated, the two crushing blocks 11 extrude and crush the calculus, then the second flushing head 9 is reversely rotated to loosen the calculus, then the flushing pipe 1 is moved forward, the second flushing head 9 and the inner support plate 7 are continuously rotated, and the opening ends of the first flushing head 8 and the second flushing head 9 are rotated to the direction of the flushing pipe 1; then step (6) is performed.

[0041] By rotating the second flushing head 9, the crushing of the calculus can be completed, the calculus is crushed into small particles, the flushing is more thorough, the operation steps are reduced, the influence of the back-and-forth conversion tool on the ureter wall of the patient is reduced, and the flushing effect and efficiency are improved.

[0042] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances. It should be understood that the specific embodiments described herein are only for understanding the application and are not intended to limit the application, and all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

Claims

1. A urinary stone flushing device comprising a flushing tube, a flushing tank and a reflux tank, characterized in that: The flushing pipe comprises an inner pipe and an outer pipe, an outer flushing cavity is formed in the inner pipe, a backflow cavity is formed between the outer pipe and the inner pipe, the rear end of the outer flushing cavity is communicated with a flushing box, the rear end of the backflow cavity is communicated with a backflow box, the front end of the flushing pipe is provided with two outer support plates, two inner support plates are rotatably connected between the two outer support plates, a first flushing head and a second flushing head are connected between the two inner support plates, the first flushing head is fixedly arranged between the two inner support plates, the second flushing head is rotatably arranged between the two inner support plates, the first flushing head and the second flushing head are the same in structure and are symmetrically arranged, the cross-sectional shape of the first flushing head and the second flushing head is crescent-shaped, one extrusion air block is arranged on one side of the inner concave arc surface of the first flushing head and the second flushing head, one cat ear-shaped crushing block is arranged on one side of the outer convex arc surface of the first flushing head and the second flushing head, when the second flushing head rotates counterclockwise, the crushing blocks of the first flushing head and the second flushing head can be in contact and abutment, the side of the two crushing blocks in contact and abutment forms a first extrusion surface, when the second flushing head rotates clockwise, the first flushing head and the second flushing head can form a scissors shape, and the extrusion air blocks of the first flushing head and the second flushing head can be in contact and abutment; The first flushing head and the second flushing head are provided with a middle transfer cavity, the middle transfer cavity is communicated with the outer flushing cavity through a connecting hose, and a plurality of flushing holes are arranged on the inner concave arc surface of the first flushing head and the second flushing head and communicated with the middle transfer cavity.

2. A urinary stone flushing device as claimed in claim 1, wherein: A plurality of suction inlets are arranged on the side wall of the outer pipe and the front end of the outer pipe and communicated with the backflow cavity.

3. A urinary stone flushing device as claimed in claim 2, wherein: The suction inlets are gradually inclined towards the rear end from the outer wall to the inner wall of the outer pipe.

4. The urinary stone flushing device according to claim 1, wherein: The bottom of the outer support plate is fixed on the flushing pipe.

5. The urinary stone flushing device according to claim 1, wherein: Each inner support plate is rotatably connected with the outer support plate through a first rotating shaft, and the first rotating shaft is connected with a first motor.

6. The urinary stone flushing device according to claim 1, wherein: The second flushing head is rotatably connected with the inner support plate through a second rotating shaft, and the second rotating shaft is connected with a second motor.

7. A method of irrigation using a urinary stone flushing device as claimed in claim 1, characterized in that: The method mainly comprises the following steps: (1) rotating the second flushing head to make the first flushing head and the second flushing head reach a closed limit state, rotating and adjusting the inner support plate to make the opening end of the first flushing head and the second flushing head face forward, and the first flushing head and the second flushing head are located at the front end of the flushing pipe, and then inserting the flushing pipe into the ureter; (2) making the first flushing head and the second flushing head reach the rear side of the stone; (3) rotating and opening the second flushing head to make the first flushing head and the second flushing head present a scissors state in an open state, so as to wrap the stone, moving the flushing pipe forward to wrap the stone with the first flushing head and the second flushing head; (4) rotating the second flushing head to close the second flushing head to the first flushing head, and the first flushing head and the second flushing head clamp the stone; (5) rotating the inner support plate to rotate the opening end of the first flushing head and the second flushing head to the direction of the flushing pipe, continuously rotating the second flushing head to the direction of the first flushing head to further close the first flushing head and the second flushing head, crushing the stone, and then reversely rotating the second flushing head to open the first flushing head and the second flushing head to release the stone; (6) open the flushing tank and the reflux tank, the flushing liquid in the flushing tank flows through the flushing pipe and the transfer cavity, and flows out from the flushing holes of the first flushing head and the second flushing head into the ureter, then the flushing liquid carries the calculus back to the reflux cavity, and finally flows to the reflux tank; (7) if the calculus in the ureter is flushed clean, close the flushing tank and the reflux tank, and pull out the flushing pipe, if there is calculus in other positions in the ureter, return to step (2).

8. A flushing method for performing a stone flushing using a urinary stone flushing device according to claim 7, characterized in that: In step (6), during the flushing of the flushing liquid, the flushing pipe is pulled back while flushing, and the first flushing head and the second flushing head scrape the ureter wall during movement.

9. The irrigation method of claim 7 using a urinary stone flushing device for stone flushing, characterized in that: After step (3), if the calculus is still adhered to the ureter wall, the following steps are further included: close the first flushing head and the second flushing head, move the flushing pipe, use the first flushing head and the second flushing head to scrape the calculus, and then return to step (2). A method of irrigation using a urinary stone flushing device according to claim 7, characterized in that: If the extrusion of the extrusion air blocks of the first flushing head and the second flushing head cannot break the calculus, move the flushing pipe to the front end, and rotate the inner support plate and the second flushing head, so that the calculus is located directly behind the two breaking blocks, move the flushing pipe back, and rotate the second flushing head, so that the two breaking blocks extrude and break the calculus, then rotate the second flushing head in the opposite direction to loosen the calculus, then move the flushing pipe forward, and continue to rotate the second flushing head and the inner support plate, so that the opening ends of the first flushing head and the second flushing head are rotated to face the flushing pipe; then step (6) is performed.

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