Joint lavage device for treating tophus

Abstract

The invention discloses a joint lavage device for treating tophus, and relates to the technical field of medical apparatuses and instruments. The invention provides a joint lavage device for tophus treatment, which comprises a mounting rack, transversely symmetrical liquid storage barrels are fixedly connected to the mounting rack, a mounting plate is fixedly connected to the mounting rack, an electric telescopic rod is fixedly connected to the mounting rack, a rotary joint is rotatably connected to the telescopic end of the electric telescopic rod, and a rotary shaft is fixedly connected to the rotary joint. A guide block is rotatably connected to the rotary joint, a sliding frame is slidably connected to the guide block, one end of the sliding frame is connected with a detachable lavage catheter, and the lavage catheter is communicated with a two-way pump. The fixing clamping plates slide oppositely to fix the device on an operating table, the angle of the lavage catheter can be adjusted at will through stretching and retracting of the electric telescopic rod and rotation of the rotary connector and the guide block, when the lavage catheter is forwards inserted into a knee joint cavity of a patient for lavage, a worker can loosen the device without being held all the time, and use is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a joint lavage device for treating tophi. Background Art

[0002] Tophi are a common complication of gout, which are formed when urate crystals are deposited in the soft tissues around joints and under the skin. Treatment for tophi usually includes medication, lifestyle adjustments, and in some cases, surgery. Joint lavage is an interventional treatment that aims to remove urate crystals from the joint cavity, reduce joint inflammation, relieve pain, and improve joint function. Traditional joint lavage can use saline or other solutions to flush the joints, and substances such as ozone are also used for lavage. However, existing joint lavage devices require medical staff to continuously support the lavage device during lavage, which not only increases the workload of medical staff, but also makes it difficult to accurately control the lavage angle during operation, thereby affecting the treatment effect.

[0003] In order to overcome the above problems, we proposed a joint lavage device for the treatment of tophi. The device can be fixed at any angle without the need for medical staff to support it all the time, thereby improving the accuracy and convenience of the treatment process. Summary of the invention

[0004] In order to overcome the shortcomings of existing joint irrigation devices that require medical staff to support the irrigation device all the time during irrigation and it is difficult to accurately control the irrigation angle, the present invention provides a joint irrigation device for treating tophi. The device can be fixed at any angle without the need for medical staff to support it all the time, thereby improving the accuracy and convenience of the treatment process.

[0005] The present invention is implemented through the following technical approaches: a joint irrigation device for treating tophi comprises a mounting frame, a laterally symmetrical liquid storage barrel is fixedly connected to the mounting frame, a mounting plate is fixedly connected to the mounting frame, an electric telescopic rod is fixedly connected to the mounting frame, the telescopic end of the electric telescopic rod is rotatably connected to a rotary joint, a guide block is rotatably connected to the rotary joint, a sliding frame is slidably connected to the guide block, a detachable irrigation catheter is connected to one end of the sliding frame, a two-way pump is connected to the irrigation catheter, a first connecting pipe with a one-way valve is connected between the two-way pump and the liquid storage barrel on one side, a second connecting pipe with a one-way valve is connected between the two-way pump and the liquid storage barrel on the other side, a fixing component for fixing the joint irrigation device on an operating table is provided on the mounting plate, a fixing component is provided on the rotary joint and the guide block, and the fixing component is used to fix the angles of the rotary joint and the guide block.

[0006] As a further preferred embodiment of the present invention, a handle is provided at the other end of the sliding frame.

[0007] As a further preferred embodiment of the present invention, the fixing assembly includes a guide rod, which is fixedly connected to the mounting plate, and a vertically symmetrical fixing clamp is slidably connected to the guide rod, and a bidirectional screw is rotatably connected to a side of the mounting plate away from the guide rod, a rotating handle is fixedly connected to the top end of the bidirectional screw, and the bidirectional screw is threadedly connected to the fixing clamp.

[0008] As a further preferred solution of the present invention, a rubber anti-slip pad is provided on one side of the fixed clamping plates close to each other.

[0009] As a further preferred embodiment of the present invention, the positioning assembly includes a limiting wheel, which is fixedly connected to the rotating connection between the guide block and the rotary joint, and a limiting block is slidably connected to the rotary joint, and the limiting block is inserted into the limiting wheel, and a first elastic member is connected between the limiting block and the rotary joint, and a locking rod is slidably connected to the bottom end of the rotary joint, and a second elastic member is connected between the locking rod and the rotary joint.

[0010] As a further preferred solution of the present invention, a circle of slots cooperating with the locking rod is formed at the top end of the electric telescopic rod.

[0011] As a further preferred embodiment of the present invention, it also includes a uniform speed component for controlling the uniform sliding of the sliding frame, the uniform speed component is arranged on the guide block, the uniform speed component includes a fixed block, the fixed block is fixedly connected to the guide block, a hollow cylinder is fixedly connected to the fixed block, a piston rod is slidably connected in the hollow cylinder, the piston rod is fixedly connected to the sliding frame, and the side of the hollow cylinder close to the piston rod and the side away from the piston rod are both connected to the inlet and outlet pipes.

[0012] As a further preferred embodiment of the present invention, it also includes a limiting component for limiting the sliding distance of the sliding frame, the limiting component is arranged on the sliding frame and the guide block, the limiting component includes a connecting screw rod, the connecting screw rod is fixedly connected to the sliding frame, the top end of the guide block is fixedly connected to a blocking plate, the connecting screw rod passes through the blocking plate, and a positioning nut is threadedly connected to the connecting screw rod.

[0013] As a further preferred embodiment of the present invention, it also includes a locking assembly for locking the limit block and the locking rod, the locking assembly is arranged on the rotary joint, the locking assembly includes a locking block, the locking block is slidably connected to the rotary joint, a third elastic member is connected between the locking block and the rotary joint, and a sliding rod is slidably connected to the rotary joint.

[0014] As a further preferred embodiment of the present invention, a wedge-shaped protrusion is provided on one side of the locking block close to the sliding rod, the bottom end of the sliding rod is squeezed together with the locking block, an arc groove is opened on the sliding frame, the cross-section of the arc groove is V-shaped, and the top end of the sliding rod is located in the arc groove.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The splints slide toward each other to fix the device on the operating table. The angle of the irrigation catheter can be adjusted arbitrarily by extending and retracting the electric telescopic rod and rotating the swivel joint and the guide block. When the irrigation catheter is inserted forward into the patient's knee joint cavity for irrigation, the staff can release the device without having to support it all the time, which is more convenient to use.

[0017] When the swivel joint rotates on the telescopic end of the electric telescopic rod, the positioning rod will slide inward and outward and cooperate with the positioning slot. When the guide block rotates on the swivel joint, the limiting wheel will also rotate to squeeze the limiting block to slide up and down continuously. In this way, the swivel joint and the guide block can be positioned without affecting their rotation, thereby preventing the swivel joint and the guide block from easily rotating and affecting the stability of the device.

[0018] When the sliding frame drives the irrigation catheter to move back and forth, the piston rod will also slide back and forth in the hollow tube. Under the action of the inlet and outlet trachea, the air in the hollow tube can only be discharged slowly. The piston rod limits the speed of the sliding frame sliding back and forth, so that the irrigation catheter moves slowly back and forth, avoiding damage to the patient caused by too fast insertion and removal of the irrigation catheter.

[0019] The positioning nut cooperates with the blocking plate to limit the insertion depth of the irrigation catheter, and the positioning nut can also adjust the insertion depth of the irrigation catheter by rotating the position on the connecting screw, thereby preventing the catheter from being inserted too deeply and causing damage to the patient's knee joint cavity.

[0020] When the sliding frame slides forward to drive the irrigation catheter forward for insertion, the locking block slides backward to lock the limit block and the locking rod. At this time, the rotating joint and the guide block can no longer be rotated and adjusted to ensure that the irrigation catheter is inserted into the patient's knee joint cavity at a fixed angle, thereby avoiding the rotating joint and the guide block from rotating again to change the angle of the irrigation catheter due to operational errors during the intubation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the components such as the mounting frame, the liquid storage barrel and the mounting plate of the present invention.

[0023] Figure 3It is a three-dimensional structural schematic diagram of components such as a fixed clamping plate, a guide rod and a bidirectional screw rod of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the limiting wheel, limiting block, locking rod and other components of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of components such as the electric telescopic rod, the rotary joint and the locking rod of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the fixing block, hollow cylinder, piston rod and other components of the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the hollow cylinder, piston rod and inlet and outlet air pipes of the present invention.

[0028] Figure 8 It is a three-dimensional structural schematic diagram of the connecting screw rod, the blocking plate, the positioning nut and other components of the present invention.

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of the sliding frame, locking block, sliding rod and other components of the present invention.

[0030] Fig.10 It is a three-dimensional structural schematic diagram of the rotary joint, the locking block, the third elastic member and other components of the present invention.

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the sliding frame and the arc groove of the present invention.

[0032] Among them, the above-mentioned drawings include the following drawing marks: 1, mounting frame, 2, liquid storage barrel, 3, mounting plate, 4, electric telescopic rod, 5, rotating joint, 6, guide block, 7, sliding frame, 8, irrigation catheter, 81, two-way pump, 82, first connecting pipe, 9, second connecting pipe, 10, fixing splint, 101, guide rod, 11, two-way screw, 12, limiting wheel, 13, limiting block, 14, first elastic member, 15, positioning rod, 16, second elastic member, 17, fixing block, 18, hollow cylinder, 19, piston rod, 20, inlet and outlet pipes, 21, connecting screw, 22, blocking plate, 23, positioning nut, 24, locking block, 25, third elastic member, 26, sliding rod, 27, arc groove. DETAILED DESCRIPTION

[0033] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0034] Embodiment 1: Joint lavage device for treating tophi, Figure 1 In the figure, A is the front side, B is the back side, C is the left side, and D is the back side. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a mounting frame 1, two left and right liquid storage barrels 2 are fixedly connected to the rear of the mounting frame 1, a mounting plate 3 is fixedly connected to the front side of the mounting frame 1, an electric telescopic rod 4 is fixedly connected to the front of the mounting frame 1, the telescopic end of the electric telescopic rod 4 is rotatably connected to a rotary joint 5, the upper part of the rotary joint 5 is rotatably connected to a guide block 6, the upper part of the guide block 6 is slidably connected to a sliding frame 7, a handle is provided at the rear of the sliding frame 7, a detachable irrigation catheter 8 is connected to the front of the sliding frame 7, the rear end of the irrigation catheter 8 is connected to a two-way pump 81, a first connecting pipe 82 with a one-way valve is connected between the two-way pump 81 and the liquid storage barrel 2 on the left, and a second connecting pipe 9 with a one-way valve is connected between the two-way pump 81 and the liquid storage barrel 2 on the right, a fixing component for fixing the joint irrigation device for treating tophi on an operating table is provided on the mounting plate 3, and a positioning component is provided on the rotary joint 5 and the guide block 6, and the positioning component is used to fix the angle of the rotary joint 5 and the guide block 6.

[0035] When using the device, the staff fixes the device on the operating bed through the fixing component, and then the electric telescopic rod 4 is extended and retracted to drive the rotating joint 5, the guide block 6, the sliding frame 7 and the irrigation catheter 8 to move up and down to adjust the height. The staff manually controls the rotating joint 5 to rotate on the electric telescopic rod 4, and the guide block 6 rotates on the rotating joint 5, and then controls the sliding frame 7 to drive the irrigation catheter 8 to adjust any angle. Under the action of the positioning component, the rotating joint 5 and the guide block 6 can be positioned without affecting their rotation, so as to avoid the rotating joint 5 and the guide block 6 from easily rotating and affecting the stability of the use of the device. When the irrigation catheter 8 is adjusted to a suitable position, a disposable needle can be inserted into one end of the irrigation catheter 8, and the staff pushes the sliding frame 7 to slide forward by the handle, and the sliding frame 7 slides forward to drive the irrigation catheter 8 and the needle to move forward. Move forward and insert it into the patient's knee joint cavity. After the needle is inserted into the patient's knee joint cavity, the staff can control the two-way pump 81 to operate. The two-way pump 81 can draw the flushing liquid in the left liquid storage barrel 2 into the irrigation catheter 8 through the first connecting tube 82, and then inject the flushing liquid into the knee joint cavity through the irrigation catheter 8 and the needle for irrigation. The two-way pump 81 can also be operated to extract the liquid and sediment in the patient's knee joint cavity through the irrigation catheter 8 and the needle, and then introduce them into the right liquid storage barrel 2 through the second connecting tube 9. During the irrigation process, since the device is fixed on the operating table, there is no need for the staff to support the device, and the angle of the irrigation catheter 8 can be adjusted and fixed at will, which is more convenient to use. When the irrigation is completed, the staff controls the two-way pump 81 to close, and then controls the sliding frame 7 to slide backward to draw the irrigation catheter 8 out of the patient's knee joint cavity.

[0036] like Figure 1 and Figure 3 As shown, the fixing assembly includes a guide rod 101, which is fixedly connected to the left part of the mounting plate 3, and a fixing splint 10 symmetrically connected to the guide rod 101 in a sliding manner, and a rubber anti-skid pad is provided on the side where the fixing splints 10 are close to each other, and a bidirectional screw 11 is rotatably connected to the right part of the mounting plate 3, and a rotating handle is fixedly connected to the top of the bidirectional screw 11, and the bidirectional screw 11 is threadedly connected to the fixing splint 10.

[0037] The device can be fixed on the operating bed by setting a fixing component. During irrigation, there is no need for the staff to hold the device all the time for irrigation, which is more convenient to use. The specific operation is as follows: when using the device, the staff moves the device to a suitable position so that the upper and lower fixed splints 10 are sleeved on the upper and lower sides of the operating bed board, and then the staff controls the rotation of the two-way screw 11 through the turning handle. The rotation of the two-way screw 11 drives the upper and lower fixed splints 10 to slide toward each other. After sliding toward each other, the fixed splints 10 clamp the operating bed board, and then the device is fixed on the operating bed. There is no need for the staff to hold the device all the time for irrigation, which is more convenient to use. Under the action of the rubber anti-slip pad, the friction between the splint 10 and the operating bed board can be increased, the fixing effect can be improved, and the splint 10 can be prevented from slipping. When the device is used, the reversal of the two-way screw 11 can drive the splint 10 to slide back to loosen the operating bed board.

[0038] like Figure 4 and Figure 5 As shown, the positioning assembly includes a limiting wheel 12, which is fixedly connected to the rotating connection between the guide block 6 and the rotary joint 5. The side of the rotary joint 5 close to the limiting wheel 12 is slidably connected to the limiting block 13, and the limiting block 13 is inserted into the limiting wheel 12. A first elastic member 14 is connected between the limiting block 13 and the rotary joint 5. The first elastic member 14 is specifically a spring. A locking rod 15 is slidably connected to the lower part of the rotary joint 5. A circle of locking grooves cooperating with the locking rod 15 is opened at the top of the electric telescopic rod 4. A second elastic member 16 is connected between the locking rod 15 and the rotary joint 5. The second elastic member 16 is specifically a spring.

[0039] By setting a positioning component, the swivel joint 5 and the guide block 6 can be positioned without affecting their rotation, so as to prevent the swivel joint 5 and the guide block 6 from easily rotating and affecting the stability of the device. The specific operation is as follows: when using the device, the staff manually controls the swivel joint 5 to rotate on the telescopic end of the electric telescopic rod 4. Since the inner end of the positioning rod 15 is an arc structure, under the action of the second elastic member 16, the positioning rod 15 will continuously slide inward and outward to cooperate with the slot. When the swivel joint 5 is rotated to a suitable angle, the positioning rod 15 is inserted into the slot to position the swivel joint 5, so as to prevent the swivel joint 5 from rotating abnormally after adjustment. When the guide block 6 rotates on the rotary joint 5, the limiting wheel 12 will also rotate with the guide block 6. Since the limiting block 13 is triangular, under the action of the first elastic member 14, the limiting wheel 12 will squeeze the inclined surface of the limiting block 13 when it rotates, and then squeeze the limiting block 13 to slide up and down continuously. When the guide block 6 rotates to a suitable angle, the limiting block 13 is inserted into the limiting wheel 12 to position the guide, thereby preventing the guide block 6 from rotating abnormally after adjustment. In this way, the rotary joint 5 and the guide block 6 can be positioned without affecting their rotation, thereby preventing the rotary joint 5 and the guide block 6 from rotating easily and affecting the stability of the device.

[0040] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 6 and Figure 7 As shown, it also includes a uniform speed component for controlling the uniform sliding of the sliding frame 7, and the uniform speed component includes a fixed block 17, the fixed block 17 is fixedly connected to the upper left side of the guide block 6, a hollow cylinder 18 is fixedly connected to the fixed block 17, a piston rod 19 is slidably connected in the hollow cylinder 18, the rear end of the piston rod 19 is fixedly connected to the sliding frame 7, and the front and rear sides of the hollow cylinder 18 are connected to the inlet and outlet pipes 20.

[0041] By setting a uniform speed component, the catheter can be controlled to move slowly back and forth, avoiding damage to the patient caused by the irrigation catheter 8 being inserted and pulled out too quickly. The specific operation is as follows: when using the device, when the staff pushes the sliding frame 7 to slide back and forth, the piston rod 19 will also slide back and forth in the hollow tube 18. Since the inlet and outlet air pipes 20 on the front and rear sides of the hollow tube 18 are relatively small, the air in the hollow tube 18 can only be discharged slowly, thereby limiting the speed at which the piston rod 19 slides back and forth, so that the sliding frame 7 can only drive the irrigation catheter 8 to move slowly back and forth, avoiding damage to the patient caused by the irrigation catheter 8 being inserted and pulled out too quickly.

[0042] like Figure 1 and Figure 8 As shown, it also includes a limiting component for limiting the sliding distance of the sliding frame 7, and the limiting component includes a connecting screw 21, the connecting screw 21 is fixedly connected to the middle of the sliding frame 7, a blocking plate 22 is fixedly connected to the upper side of the guide block 6, the connecting screw 21 passes through the blocking plate 22, and a positioning nut 23 is threadedly connected to the connecting screw 21.

[0043] By setting a limiting component, the depth of catheter insertion can be limited. The specific operation is as follows: when the device is used, the sliding frame 7 slides forward to drive the irrigation catheter 8 to be inserted forward into the patient's knee joint cavity, and the connecting screw 21 also drives the positioning nut 23 to move forward. When the positioning nut 23 moves forward to contact the blocking plate 22, the blocking plate 22 clamps the positioning nut 23, and then limits the sliding frame 7 from continuing to slide forward through the connecting screw 21, so as to achieve the purpose of limiting the insertion depth of the irrigation catheter 8, and the positioning nut 23 can also adjust the insertion depth of the irrigation catheter 8 by rotating the adjusting position on the connecting screw 21.

[0044] like Fig. 9 , Fig.10 and Fig.11As shown, a locking assembly for locking the limit block 13 and the locking rod 15 is also included, and the locking assembly includes a locking block 24, which is slidably connected to the lower left side of the rotary joint 5, and a third elastic member 25 is connected between the locking block 24 and the rotary joint 5, and the third elastic member 25 is specifically a spring. A sliding rod 26 is slidably connected to the left side of the rotary joint 5, and a wedge-shaped protrusion is provided on the side of the locking block 24 close to the sliding rod 26, and the lower end of the sliding rod 26 is squeezed and matched with the wedge-shaped protrusion of the locking block 24, and an arc groove 27 is opened in the middle of the sliding frame 7, and the cross-section of the arc groove 27 is V-shaped, and the upper end of the sliding rod 26 is located in the arc groove 27.

[0045] By setting a locking assembly, the limit block 13 and the locking rod 15 can be locked when the catheter is inserted into the patient's knee joint cavity to prevent the rotary joint 5 and the guide block 6 from rotating during intubation. The specific operation is as follows: when using the device, after the angle adjustment of the sliding frame 7 and the irrigation catheter 8 is completed, when the staff pushes the sliding frame 7 to slide forward, the arc groove 27 with a V-shaped cross section squeezes the sliding rod 26 to slide to the left, and the sliding rod 26 slides to the left to squeeze the locking block 24 to slide in the direction of the locking rod 15. At this time, the third elastic member 25 is deformed, and the locking block 24 slides backward and blocks the limit block 13 and the left side of the locking rod 15, thereby locking the limit block 13 and the locking rod 15. At this time, the rotary joint 5 and the guide block 6 can no longer be rotated and adjusted to ensure that the irrigation catheter 8 is inserted into the patient's knee joint cavity at a fixed angle, so as to avoid the rotary joint 5 and the guide block 6 rotating again to change the angle of the irrigation catheter 8 due to operational errors during the intubation process. When the irrigation is completed, the sliding frame 7 slides backward and no longer squeezes the sliding rod 26. At this time, under the action of the third elastic member 25 resetting, the locking block 24 slides forward and resets to be misaligned with the limit block 13 and the locking rod 15.

[0046] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A joint lavage device for treating tophi, characterized in that: The invention comprises a mounting frame (1), a laterally symmetrical liquid storage barrel (2) is fixedly connected to the mounting frame (1), a mounting plate (3) is fixedly connected to the mounting frame (1), an electric telescopic rod (4) is fixedly connected to the mounting frame (1), a telescopic end of the electric telescopic rod (4) is rotatably connected to a rotary joint (5), a guide block (6) is rotatably connected to the rotary joint (5), a sliding frame (7) is slidably connected to the guide block (6), one end of the sliding frame (7) is connected to a detachable irrigation catheter (8), and the irrigation catheter (8) is rotatably connected to the rotary joint (5). A two-way pump (81) is connected to the joint lavage device (8), a first connecting pipe (82) with a one-way valve is connected between the two-way pump (81) and the liquid storage barrel (2) on one side, a second connecting pipe (9) with a one-way valve is connected between the two-way pump (81) and the liquid storage barrel (2) on the other side, a fixing component for fixing the joint lavage device on the operating table is provided on the mounting plate (3), and a fixing component is provided on the rotating joint (5) and the guide block (6), and the fixing component is used to fix the angle of the rotating joint (5) and the guide block (6).

2. The joint lavage device for treating tophi as claimed in claim 1, characterized in that: The other end of the sliding frame (7) is provided with a handle.

3. The joint lavage device for treating tophi as claimed in claim 2, characterized in that: The fixing assembly comprises a guide rod (101), the guide rod (101) is fixedly connected to the mounting plate (3), a vertically symmetrical fixing clamp (10) is slidably connected to the guide rod (101), a bidirectional screw rod (11) is rotatably connected to a side of the mounting plate (3) away from the guide rod (101), a rotating handle is fixedly connected to the top end of the bidirectional screw rod (11), and the bidirectional screw rod (11) is connected to the fixing clamp (10) by threads.

4. The joint lavage device for treating tophi as claimed in claim 3, characterized in that: A rubber anti-skid pad is provided on one side of the fixed clamping plates (10) that are close to each other.

5. The joint lavage device for treating tophi as claimed in claim 4, characterized in that: The positioning assembly comprises a limit wheel (12), wherein the limit wheel (12) is fixedly connected to the rotation connection between the guide block (6) and the rotary joint (5), a limit block (13) is slidably connected to the rotary joint (5), the limit block (13) is snapped into the limit wheel (12), a first elastic member (14) is connected between the limit block (13) and the rotary joint (5), a locking rod (15) is slidably connected to the bottom end of the rotary joint (5), and a second elastic member (16) is connected between the locking rod (15) and the rotary joint (5).

6. The joint lavage device for treating tophi as claimed in claim 5, characterized in that: The top end of the electric telescopic rod (4) is provided with a circle of slots that cooperate with the locking rod (15).

7. The joint lavage device for treating tophi as claimed in claim 6, characterized in that: The invention also comprises a uniform speed component for controlling the uniform sliding of the sliding frame (7), the uniform speed component being arranged on the guide block (6), the uniform speed component comprising a fixed block (17), the fixed block (17) being fixedly connected to the guide block (6), a hollow cylinder (18) being fixedly connected to the fixed block (17), a piston rod (19) being slidably connected in the hollow cylinder (18), the piston rod (19) being fixedly connected to the sliding frame (7), and an inlet and outlet air pipe (20) being connected to both a side of the hollow cylinder (18) close to the piston rod (19) and a side away from the piston rod (19).

8. The joint lavage device for treating tophi as claimed in claim 7, characterized in that: The invention also comprises a limiting component for limiting the sliding distance of the sliding frame (7), the limiting component being arranged on the sliding frame (7) and the guide block (6), the limiting component comprising a connecting screw (21), the connecting screw (21) being fixedly connected to the sliding frame (7), a blocking plate (22) being fixedly connected to the top end of the guide block (6), the connecting screw (21) passing through the blocking plate (22), and a positioning nut (23) being threadedly connected to the connecting screw (21).

9. The joint lavage device for treating tophi as claimed in claim 8, characterized in that: The invention also comprises a locking assembly for locking the limit block (13) and the locking rod (15), the locking assembly being arranged on the rotary joint (5), the locking assembly comprising a locking block (24), the locking block (24) being slidably connected to the rotary joint (5), a third elastic member (25) being connected between the locking block (24) and the rotary joint (5), and a sliding rod (26) being slidably connected to the rotary joint (5).

10. The joint lavage device for treating tophi as claimed in claim 9, characterized in that: A wedge-shaped protrusion is provided on one side of the locking block (24) close to the sliding rod (26); the bottom end of the sliding rod (26) is pressed and matched with the locking block (24); an arc groove (27) is provided on the sliding frame (7); the cross section of the arc groove (27) is V-shaped; the top end of the sliding rod (26) is located in the arc groove (27).

Images