Multi-position urinary calculus expelling device

Abstract

The application discloses a multi-body position urinary calculus removing device, which comprises a bottom plate, characterized in that four corners of the upper side of the bottom plate are fixedly connected with four corners of a bed plate through connecting columns, both sides of the bed plate are provided with notches, one side of a U-shaped plate is hingedly connected in the notches of the bed plate, the inner and outer edges of the notches of each U-shaped plate are fixedly connected with guide shafts, each guide shaft penetrates a moving block, each moving block is fixedly connected with a supporting groove, each supporting groove is fixedly connected with a vibrating air bag, the center of each vibrating air bag is fixedly connected with an air inlet valve, the air inlet valve is fixedly connected with the center of the supporting groove, one end of each screw rod is bearing-connected with the other side of each U-shaped plate, each screw rod is threadedly connected with a corresponding moving block, and one end of each screw rod is fixedly connected with one end of a knob, and the knob penetrates the side edge of a corresponding U-shaped plate. The application relates to the technical field of medical devices, in particular to a multi-body position urinary calculus removing device. The device can be applied to calculus removing operation in multiple body positions.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a multi-position urinary stone removal device. Background Technology

[0002] Urinary tract stones are a very old disease and one of the most common diseases in urology. Traditional treatments include open surgery and medication to dissolve and expel the stones. With advancements in technology, minimally invasive techniques have developed and matured rapidly, becoming the primary treatment method for urinary tract stones. Minimally invasive treatments for urinary tract stones include percutaneous nephrolithotomy (PCNL), ureteroscopic lithotripsy (UTL), cystoscopic lithotripsy (CTL), and extracorporeal shock wave lithotripsy (ESWL). Among these, ESWL does not require incisions and is considered a non-invasive treatment, making it the recognized first-line method for treating urinary tract stones.

[0003] Larger urinary stones are treated with extracorporeal shock wave lithotripsy (ESWL). The machine focuses the shock waves at the stone, releasing energy multiple times to break it up and allow it to be excreted in the urine. However, due to the structure of the kidneys and ureters, many fragmented stones are difficult to expel, often taking weeks or even three months to completely clear. This increases the patient's psychological burden and potential pain, and also increases the risk of recurrence of residual stones. To speed up the process, doctors often advise patients to drink plenty of water after surgery and to use methods such as jumping, patting, running, or inversion to expel the stones. While these methods can be effective, it is difficult for patients to control the dosage precisely, and exercise can be challenging for the weak and elderly.

[0004] Existing stone removal beds generally only allow stone removal operations in one position, and when using vibration stone removal, they can only perform stone removal vibration in one position, not in multiple positions. Furthermore, the position of the vibration impact head is not easy to change, and there is no support device when the patient is positioned on the bed. These are the shortcomings of existing technology. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a multi-position urinary stone expulsion device that can vibrate and impact the kidney stone site of the patient and is suitable for stone expulsion operations in multiple positions.

[0006] The present invention achieves its objective by adopting the following technical solutions:

[0007] A multi-position urinary stone removal device includes a base plate, characterized in that: the four corners of the upper side of the base plate are respectively fixedly connected to the four corners of the bed board by connecting columns; the two sides of the bed board are respectively provided with notches; one side of the U-shaped plate is respectively hinged in the notch of the bed board; the inner and outer edges of the notch of each U-shaped plate are respectively fixedly connected to guide shafts; each guide shaft passes through a moving block; each moving block is respectively fixedly connected to a support groove; each support groove is respectively fixedly fixed to a vibrating airbag; the center of each vibrating airbag is respectively fixedly connected to an air inlet valve; the air inlet valve is fixedly fixed to the center of the support groove.

[0008] Each U-shaped plate has a bearing connecting one end of a screw on its other side, each screw is threadedly connected to the corresponding moving block, and the other end of each screw is fixed to one end of a knob, the knob passing through the side of the corresponding U-shaped plate;

[0009] U-shaped edge strips are fixed to the lower middle part of the U-shaped plate. One end of each U-shaped edge strip is hinged to one end of a connecting rod. The other end of each connecting rod is hinged to both ends of a lifting rod. Symmetrical guide posts are fixed to the lower side of the lifting rod. Each guide post is inserted into a sleeve. All sleeves are fixed to the base plate.

[0010] The air intake valve is fixedly connected to the airbag vibration module via a hose.

[0011] As a further limitation of this technical solution, the airbag vibration module includes a side strip, which is fixed to the lower side of the bed board. A piston cylinder is fixed to the lower side of the side strip. A piston block is fixedly connected to a push rod inside the piston cylinder. The push rod passes through a fixing block, which fixes the lower side of the bed board. The other end of the push rod is fixed to the center of a straight groove rod. A limiting shaft is provided in the groove of the straight groove rod. A slider is fixedly connected to the lower side of the limiting shaft. The slider is set in the slide rail of a rotating groove rod. One end of the rotating groove rod is fixedly connected to a rotating block through an L-shaped block. The rotating block is fixedly connected to the upper end of the vertical shaft of a T-shaped shaft. The lower end of the vertical shaft of the T-shaped shaft is fixedly connected to the center of a bevel gear. The central shaft of the bevel gear is bearing-connected to the horizontal bar of the L-shaped rod. The vertical bar of the L-shaped rod is fixedly connected to the base plate. The lower end of the central shaft of the bevel gear is fixedly connected to the upper end of the central shaft of a conical wheel. The lower end of the central shaft of the conical wheel is bearing-connected to an extension plate. One end of the extension plate is fixedly connected to the lower part of one side of the vertical bar of the L-shaped rod.

[0012] As a further limitation of this technical solution, the other end of the protruding plate is connected to the shaft of the prismatic rotating column by a bearing. The prismatic rotating column passes through the center of the friction wheel. The two ends of the friction wheel are respectively connected to support rings by bearings. Each support ring is fixedly connected to one side of the movable slot by a connecting block. The fixing rod passes through the movable slot. The other side of the movable slot is threaded with a set screw. The set screw can hold the fixing rod. The prismatic rotating column passes through the support ring. The surface of the friction wheel is in contact with the surface of the conical wheel.

[0013] According to the claim, a multi-position urinary stone removal device is characterized in that: a motor bracket is fixed to the lower side of the extension plate, the motor bracket fixes the motor, and the output shaft of the motor is fixedly connected to the rotating shaft of the prismatic rotating column.

[0014] As a further limitation of this technical solution, a reverse screw is provided inside the rotating groove rod. One end of the reverse screw is connected to one end of the rotating groove rod by a bearing. The reverse screw is threadedly connected to the slider. One end of the reverse screw is fixed to the central shaft of the second bevel gear. The central shaft of the second bevel gear is connected to the transverse shaft end of the T-shaped shaft by a bearing.

[0015] As a further limitation of this technical solution, a square groove is provided on the upper side of the middle part of the bed board, an airbag two is fixed in the square groove, an air inlet pipe is provided on the lower side of the airbag two, the upper end of the air inlet pipe passes through the bed board, the air inlet pipe is fixed to the bed board, an exhaust valve is provided on the air inlet pipe, and the lower end of the air inlet pipe is connected to a pedal-type air pump, the pedal-type air pump is fixed on the base plate, and the pedal-type air pump is provided with an air inlet.

[0016] As a further limitation of this technical solution, a set of evenly arranged circular holes are provided on both sides of the bed board. The upper side of the rubber block is arc-shaped. Ear blocks are fixed to the lower parts of both sides of the rubber block. Each ear block is provided with a second circular hole. The second circular hole corresponds to the first circular hole. The bolt can pass through the second circular hole and the corresponding circular hole and be threadedly connected to the nut. The distance between the center lines of the two opposite circular holes is the same as the distance between the center lines of the two opposite circular holes.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are:

[0018] The slider moves back and forth in the rotating groove rod, and the limit shaft rotates in the straight groove rod, which changes the stroke of the straight groove rod. The farther the slider is from the second bevel gear, the greater the stroke of the straight groove rod driven by the limit shaft, and vice versa, so as to realize the change of the vibrating airbag from small to large and then from large to small.

[0019] The telescopic rod of the electric push rod extends and retracts, causing the lifting rod to move up and down. The lifting rod drives the connecting rod to swing back and forth, which in turn drives the U-shaped side strip to swing back and forth. The U-shaped side strip drives the U-shaped plate, moving block, guide shaft, screw, and vibrating airbag to swing back and forth, thereby enabling the vibrating airbag to continuously strike the patient and achieve vibration breakage.

[0020] The movement of the vibrating airbag and the support groove can be adjusted by the linkage of the screw and the moving block, and the position of the vibrating airbag and the support groove can be adjusted.

[0021] The vibrating airbag impacts and vibrates the patient's stone site to accelerate the breaking and expulsion of the stone. The rotation speed of the bevel gear is adjusted by the linkage of the prismatic rotating column, friction wheel and conical wheel, thereby adjusting the vibration frequency of the vibrating airbag.

[0022] The airbag provides support for the patient, and the rubber block provides support when the patient is lying face down. The rubber block can be adjusted in position and can also be removed. It is simple to operate and easy to use. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0024] Figure 1 The three-dimensional representation of the present invention Figure 1 .

[0025] Figure 2 For the present invention Figure 1 A magnified view of a portion of point A in the middle.

[0026] Figure 3 The three-dimensional representation of the present invention Figure 2 .

[0027] Figure 4 The three-dimensional representation of the present invention Figure 3 .

[0028] Figure 5 For the present invention Figure 4 A magnified view of point B in the middle.

[0029] Figure 6 The three-dimensional representation of the present invention Figure 4 .

[0030] Figure 7 The three-dimensional representation of the present invention Figure 5 .

[0031] Figure 8 The three-dimensional representation of the present invention Figure 6 .

[0032] Figure 9 The three-dimensional representation of the present invention Figure 7 .

[0033] Figure 10 This is a partial perspective view of the present invention.

[0034] In the diagram: 1. Moving block, 2. Screw, 211. Knob, 3. U-shaped plate, 4. Bed board, 401. Notch, 5. Connecting column, 6. Base plate, 7. Air inlet, 8. Foot-operated air pump, 9. Air inlet pipe, 10. Exhaust valve, 101. Guide shaft, 11. Sleeve, 12. Guide column, 13. Prismatic rotating column, 14. Fixed rod, 15. Moving slot, 16. Set screw, 17. Connecting block, 19. Motor, 20. Motor bracket, 21. Extending plate, 22. L-shaped rod, 23. Conical wheel, 24. Friction wheel, 25. Support ring, 26. Bevel gear one, 261, T-shaped shaft, 27, intake valve, 28, U-shaped side strip, 29, connecting rod, 30, straight groove rod, 31, limit shaft, 311, slider, 32, push rod, 33, fixed block, 34, piston cylinder, 35, side strip, 36, air outlet, 37, rotating block, 38, bevel gear two, 39, rotating groove rod, 391, reverse screw, 40, L-shaped block, 41, rubber block, 42, ear block, 43, round hole two, 44, round hole, 45, airbag two, 46, square groove, 47, vibrating airbag, 48, support groove, 49, lifting rod. Detailed Implementation

[0035] The following will refer to the appendices in the embodiments of the present invention. Figures 1-10 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that the directional terms such as left, right, up, down, front, and back in the embodiments of the present invention are only relative concepts or are based on the normal use state of the product, i.e., the direction of the product's movement, and should not be considered as limiting.

[0037] When a component is described as "located on" or "set on" another component, it can be on the other component or may be interposed with the component. When a component is described as "connected to" another component, it can be directly connected to the other component or may be interposed with the component.

[0038] Example 1: Includes a base plate 6, the four corners of the upper side of the base plate 6 are fixedly connected to the four corners of the bed board 4 by connecting columns 5 respectively. The two sides of the bed board 4 are respectively provided with notches 401. One side of the U-shaped plate 3 is hinged in the notch of the bed board 4. The inner and outer edges of the notch of each U-shaped plate 3 are respectively fixedly connected to the guide shaft 101. Each guide shaft 101 passes through the moving block 1. Each moving block 1 is respectively fixedly connected to the support groove 48. Each support groove 48 is respectively fixedly connected to the vibration airbag 47. The center of each vibration airbag 47 is respectively fixedly connected to the air inlet valve 27. The air inlet valve 27 is fixed to the center of the support groove 48.

[0039] On the other side of each U-shaped plate 3, one end of a screw 2 is connected to a bearing. Each screw 2 is threadedly connected to the corresponding moving block 1. The other end of each screw 2 is fixed to one end of a knob 211. The knob 211 passes through the side of the corresponding U-shaped plate 3.

[0040] U-shaped edge strips 28 are fixed to the lower middle part of the U-shaped plate 3. One end of each U-shaped edge strip 28 is hinged to one end of a connecting rod 29. The other end of each connecting rod 29 is hinged to both ends of a lifting rod 49. Symmetrical guide posts 12 are fixed to the lower side of the lifting rod 49. Each guide post 12 is inserted into a sleeve 11. All sleeves 11 are fixed to the base plate 6.

[0041] The air intake valve 27 is fixedly connected to the airbag vibration module via a hose.

[0042] The airbag vibration module includes a side strip 35, which is fixed to the lower side of the bed board 4. A piston cylinder 34 is fixed to the lower side of the side strip 35. A piston block inside the piston cylinder 34 is fixedly connected to a push rod 32. The push rod 32 passes through a fixing block 33, which fixes the lower side of the bed board 4. The other end of the push rod 32 is fixed to the center of a straight groove rod 30. A limiting shaft 31 is provided in the groove of the straight groove rod 30. A slider 311 is fixedly connected to the lower side of the limiting shaft 31. The slider 311 is disposed in the slide rail of a rotating groove rod 39. One end is fixedly connected to the rotating block 37 via the L-shaped block 40. The rotating block 37 is fixedly connected to the upper end of the vertical shaft of the T-shaped shaft 261. The lower end of the vertical shaft of the T-shaped shaft 261 is fixedly connected to the center of the bevel gear 26. The central shaft of the bevel gear 26 is connected to the horizontal bar of the L-shaped rod 22 via a bearing. The vertical bar of the L-shaped rod 22 is fixedly connected to the base plate 6. The lower end of the central shaft of the bevel gear 26 is fixedly connected to the upper end of the central shaft of the conical wheel 23 via a bearing. The lower end of the central shaft of the conical wheel 23 is connected to the extension plate 21 via a bearing. One end of the extension plate 21 is fixedly connected to the lower part of one side of the vertical bar of the L-shaped rod 22.

[0043] The other end of the protruding plate 21 is connected to the shaft of the prismatic rotating column 13 by a bearing. The prismatic rotating column 13 passes through the center of the friction wheel 24. Both ends of the friction wheel 24 are connected to the support rings 25 by bearings. Each support ring 25 is fixedly connected to one side of the movable slot 15 by a connecting block 17. The fixing rod 14 passes through the movable slot 15. The other side of the movable slot 15 is threadedly connected to the set screw 16. The set screw 16 can hold the fixing rod 14. The prismatic rotating column 13 passes through the support ring 25. The surface of the friction wheel 24 is in contact with the surface of the conical wheel 23.

[0044] The lower side of the protruding plate 21 is fixed with a motor bracket 20, the motor bracket 20 fixes a motor 19, and the output shaft of the motor 19 is fixedly connected to the rotating shaft of the prismatic rotating column 13.

[0045] A reverse screw 391 is provided inside the rotating groove rod 39. One end of the reverse screw 391 is connected to one end of the rotating groove rod 39 by a bearing. The reverse screw 391 is threaded to the slider 311. One end of the reverse screw 391 is fixed to the central shaft of the second bevel gear 38. The central shaft of the second bevel gear 38 is connected to the horizontal shaft end of the T-shaped shaft 261 by a bearing.

[0046] A square groove 46 is provided on the upper side of the middle part of the bed board 4. An airbag 45 is fixed in the square groove 46. An air inlet pipe 9 is provided on the lower side of the airbag 45. The upper end of the air inlet pipe 9 passes through the bed board 4. The air inlet pipe 9 is fixed to the bed board 4. An exhaust valve 10 is provided on the air inlet pipe 9. The lower end of the air inlet pipe 9 is connected to a foot-operated air pump 8. The foot-operated air pump 8 is fixed on the base plate 6. The foot-operated air pump 8 is provided with an air inlet 7.

[0047] An air outlet 36 is provided on the lower side of the end of the piston cylinder 34. The air outlet 36 is fixedly connected to the corresponding air inlet valve 27 through a diversion hose. The diversion hose is a Y-shaped hose, with one end fixedly connected to the air outlet 36 and the other two ends fixedly connected to the air inlet valve 27 respectively.

[0048] The reverse screw 391 is a reciprocating lead screw.

[0049] When using this device, the vibrating airbag 47 impacts and vibrates the patient's kidney stone area, accelerating the breaking up and expulsion of the stone. The rotation speed of the bevel gear 26 is adjusted by the linkage of the prismatic rotating column 13, friction wheel 24, and conical wheel 23, thereby adjusting the vibration frequency of the vibrating airbag 47. Specifically, the patient lies on the bed board 4. The foot-operated air pump 8 is activated, and air enters the pump through the air inlet 7, passes through the air intake pipe 9, and then enters the second airbag 45, causing it to inflate and provide support for the patient's lower back. An exhaust valve 10 is installed on the air intake pipe 9, allowing the air inside the second airbag 45 to be expelled by controlling its opening and closing. After the patient is properly positioned, the motor 19 is started, driving the prismatic rotating column 13 to rotate. The prismatic rotating column 13 drives the friction wheel 24 to rotate, which in turn drives the conical wheel 23 through friction. The conical wheel 23 then drives the bevel gear 26 to rotate, which in turn drives... Rotating block 37 rotates, driving L-shaped block 40, rotating groove rod 39, and limiting shaft 31 to rotate. Limiting shaft 31 rotates within straight groove rod 30, causing straight groove rod 30 to reciprocate. Straight groove rod 30 drives push rod 32 to reciprocate along the square hole passing through fixed block 33. Push rod 32 drives piston block of piston cylinder 34 to reciprocate. The reciprocating movement of piston block of piston cylinder 34 enters air intake valve 27 through air outlet 36 and hose, and then enters vibrating airbag 47. The rotation of the moving groove rod 39 drives the second bevel gear 38 to rotate. The second bevel gear 38 meshes with the first bevel gear 26. The rotation of the second bevel gear 38 drives the reverse screw 391 to rotate. The reverse screw 391 drives the slider 311 to move. The slider 311 drives the limit shaft 31 to move. Since the reverse screw 391 is a reciprocating screw, the principle of the reciprocating screw is: the reciprocating screw is a form of three-dimensional cam pair, which is represented by two threaded grooves with the same pitch and opposite directions, and the two ends are connected by transition curves. The rotation of the lead screw causes the side of the spiral groove to push the slider placed in the spiral groove to move axially back and forth. The slider 311 moves back and forth within the rotating groove rod 39. The limit shaft 31 rotates within the straight groove rod 30, causing the straight groove rod 30 to move back and forth, thus changing the stroke. The farther the slider 311 is from the bevel gear 38, the greater the stroke of the straight groove rod 30 driven by the limit shaft 31, and vice versa. This achieves the change of the vibrating airbag 47 from small to large and then from large to small. The extension and retraction of the telescopic rod of the electric push rod 11 causes the lifting rod 49 to move up and down. The lifting rod 49 causes the connecting rod 29 to swing back and forth. The connecting rod 29 causes the U-shaped side strip 28 to swing back and forth. The U-shaped side strip 28 causes the U-shaped plate 3, the moving block 1, the guide shaft 101, the screw 2, and the vibrating airbag 47 to swing back and forth, thus achieving continuous impact of the vibrating airbag 47 on the patient and achieving vibration breakage.

[0050] Rotating knob 211 drives screw 2 to rotate, screw 2 drives moving block 1 to move along guide shaft 101, moving block 1 drives vibrating airbag 47 and support groove 48 to move, adjust the position of vibrating airbag 47 and support groove 48, and stop rotating knob 211 after adjustment.

[0051] Loosen the set screw 16 to control the movement of the movable slot 15, which in turn moves the connecting block 17. The fixing rod 14 guides the movable slot 15. The connecting block 17 moves the friction wheel 24 and the support ring 25. The friction wheel 24 is always in contact with the conical wheel 23. The friction wheel 24 contacts the small diameter end of the conical wheel 23, causing the conical wheel 23 to rotate at a high speed. When the friction wheel 24 contacts the large diameter end of the conical wheel 23, the friction wheel 24 causes the conical wheel 23 to rotate at a low speed. After adjustment, tighten the set screw 16 to fix the movable slot 15.

[0052] Example 2: A set of evenly arranged circular holes 44 are provided on both sides of the bed board 4. The upper side of the rubber block 41 is arc-shaped. The lower parts of both sides of the rubber block 41 are respectively fixed with ear blocks 42. Each ear block 42 is provided with a second circular hole 43. The second circular hole 43 corresponds to the circular hole 44. The bolt can pass through the second circular hole 43 and the corresponding circular hole 44 and be threadedly connected with the nut. The distance between the center lines of the two opposite circular holes 44 is the same as the distance between the center lines of the two opposite circular holes 43.

[0053] The rubber block 41 can be fixed to the bed board 4 with bolts and nuts. By unscrewing the nuts and removing the bolts, the rubber block 41 can be moved, making it convenient to adjust the position of the rubber block 41 according to the patient's needs. When the patient lies on the bed board 4, the rubber block 41 provides support for the patient.

[0054] The above-disclosed embodiments are merely specific examples of the present invention. However, the present invention is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A multi-position urinary stone removal device, comprising a base plate (6), characterized in that: The four corners of the upper side of the base plate (6) are fixedly connected to the four corners of the bed board (4) by connecting columns (5). The two sides of the bed board (4) are respectively provided with notches (401). The grooves of the bed board (4) are respectively hinged to one side of the U-shaped plate (3). The inner and outer edges of the grooves of each U-shaped plate (3) are respectively fixedly connected to the guide shaft (101). Each guide shaft (101) passes through the moving block (1). Each moving block (1) is respectively fixedly connected to the support groove (48). Each support groove (48) is respectively fixedly connected to the vibration airbag (47). The center of each vibration airbag (47) is respectively fixedly connected to the air inlet valve (27). The air inlet valve (27) is fixed to the center of the support groove (48). Each of the U-shaped plates (3) has a bearing connecting one end of a screw (2) on the other side, and each screw (2) is threadedly connected to the corresponding moving block (1). The other end of each screw (2) is fixed to one end of a knob (211), and the knob (211) passes through the side of the corresponding U-shaped plate (3). U-shaped edge strips (28) are fixed to the lower middle part of the U-shaped plate (3). One end of each U-shaped edge strip (28) is hinged to one end of a connecting rod (29). The other end of each connecting rod (29) is hinged to both ends of a lifting rod (49). The lower side of the lifting rod (49) is fixed with the telescopic rods of symmetrical electric push rods (11). All electric push rods (11) are fixed on the base plate (6). The air intake valve (27) is fixedly connected to the airbag vibration module via a hose.

2. The multi-position urinary stone expulsion device according to claim 1, characterized in that: The airbag vibration module includes a side strip (35), which is fixed to the lower side of the bed board (4). A piston cylinder (34) is fixed to the lower side of the side strip (35). A piston block is fixedly connected to a push rod (32) inside the piston cylinder (34). The push rod (32) passes through a fixing block (33), which fixes the lower side of the bed board (4). The other end of the push rod (32) is fixed to the center of a straight groove rod (30). A limiting shaft (31) is provided in the groove of the straight groove rod (30). A slider (311) is fixedly connected to the lower side of the limiting shaft (31). The slider (311) is set in the slide rail of a rotating groove rod (39). One end of 39) is fixedly connected to the rotating block (37) via the L-shaped block (40). The rotating block (37) is fixedly connected to the upper end of the vertical shaft of the T-shaped shaft (261). The lower end of the vertical shaft of the T-shaped shaft (261) is fixedly connected to the center of the first bevel gear (26). The central shaft of the first bevel gear (26) is connected to the horizontal bar of the L-shaped rod (22). The vertical bar of the L-shaped rod (22) is fixedly connected to the base plate (6). The lower end of the central shaft of the first bevel gear (26) is fixedly connected to the upper end of the central shaft of the conical wheel (23). The lower end of the central shaft of the conical wheel (23) is connected to the extension plate (21). One end of the extension plate (21) is fixedly connected to the lower part of one side of the vertical bar of the L-shaped rod (22).

3. The multi-position urinary stone expulsion device according to claim 2, characterized in that: The other end of the protruding plate (21) is connected to the shaft of the prismatic rotating column (13) by a bearing. The prismatic rotating column (13) passes through the center of the friction wheel (24). The two ends of the friction wheel (24) are respectively connected to the support ring (25) by bearings. Each support ring (25) is fixedly connected to one side of the movable slot (15) by a connecting block (17). The fixing rod (14) passes through the movable slot (15). The other side of the movable slot (15) is threadedly connected to the set screw (16). The set screw (16) can hold the fixing rod (14). The prismatic rotating column (13) passes through the support ring (25). The surface of the friction wheel (24) is in contact with the surface of the conical wheel (23).

4. The multi-position urinary stone expulsion device according to claim 3, characterized in that: The lower side of the protruding plate (21) is fixed with a motor bracket (20), the motor bracket (20) fixes a motor (19), and the output shaft of the motor (19) is fixedly connected to the rotating shaft of the prismatic rotating column (13).

5. The multi-position urinary stone expulsion device according to claim 2, characterized in that: A reverse screw (391) is provided inside the rotating groove rod (39). One end of the reverse screw (391) is connected to one end of the rotating groove rod (39) by a bearing. The reverse screw (391) is threaded to the slider (311). One end of the reverse screw (391) is fixed to the central shaft of the second bevel gear (38). The central shaft of the second bevel gear (38) is connected to the end of the horizontal shaft of the T-shaped shaft (261) by a bearing.

6. The multi-position urinary stone expulsion device according to claim 1, characterized in that: A square groove (46) is provided on the upper side of the middle part of the bed board (4). An airbag (45) is fixed in the square groove (46). An air inlet pipe (9) is provided on the lower side of the airbag (45). The upper end of the air inlet pipe (9) passes through the bed board (4). The air inlet pipe (9) fixes the bed board (4). An exhaust valve (10) is provided on the air inlet pipe (9). The lower end of the air inlet pipe (9) is connected to a foot-operated air pump (8). The foot-operated air pump (8) is fixed on the base plate (6). The foot-operated air pump (8) is provided with an air inlet (7).

7. The multi-position urinary stone expulsion device according to claim 1, characterized in that: The bed board (4) has a set of evenly arranged round holes (44) on both sides. The upper side of the rubber block (41) is arc-shaped. The lower parts of both sides of the rubber block (41) are fixed with ear blocks (42). Each ear block (42) is provided with a second round hole (43). The second round hole (43) corresponds to the round hole (44). The bolt can pass through the second round hole (43) and the corresponding round hole (44) and be threaded with the nut. The distance between the center lines of the two opposite round holes (44) is the same as the distance between the center lines of the two opposite round holes (43).

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