Puncture positioning device for nephrology department

Abstract

The invention belongs to medical machines and discloses a nephrology department puncture positioning device which comprises a vertical plate, a sliding cavity is formed in the vertical plate in a sliding mode, a sealing cavity is fixed to the side face of the sliding cavity, a piston plate is slidably connected into the sealing cavity, a mounting block is fixed to the outer side end of the piston plate, a mounting plate is fixed to the side face of the mounting block, and a baffle is fixed to the other end of the mounting plate. A limiting plate sliding relative to the mounting plate is arranged between the mounting block and the baffle, and a second spring is fixed between the mounting block and the limiting plate; a closed cavity fixed to the vertical plate is formed below the sealing cavity, the closed cavity is filled with liquid, an extrusion plate is slidably connected into the closed cavity, a plurality of round holes are formed in the extrusion plate, a push plate is fixed to the upper end of the extrusion plate, the push plate penetrates through the upper end of the closed cavity and extends upwards, so that the push plate is slidably connected with the closed cavity, and the upper end of the push plate is fixed to the sealing cavity; buoyancy blocks are fixed to the lower ends of the extrusion plates. The puncture needle can stably penetrate into the body of a patient, and compared with a traditional handheld puncture needle, the stability is better.

Description

Technical Field

[0001] The invention belongs to the field of medical machines, and in particular relates to a puncture positioning device for renal internal medicine. Background Art

[0002] Renal puncture is a renal biopsy, also known as renal puncture biopsy. Due to the wide variety of kidney diseases, complex causes and pathogenesis, the clinical manifestations of many kidney diseases are not completely consistent with the histological changes of the kidneys. Renal puncture can help clinicians judge the condition, treat the disease and provide important basis for estimating prognosis.

[0003] In the prior art, when performing renal puncture on a patient, the staff usually holds a handheld device to perform renal puncture on the patient, and the doctor cannot fully control his hand to insert the puncture device stably and at a relatively uniform speed into the patient's body. At the same time, the hand is easily affected by the outside world and shakes, which can easily cause the puncture position to shift and cause damage to the patient. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a puncture positioning device for renal internal medicine, which solves the problem in the prior art that doctors cannot fully control their hands to insert the puncture equipment into the patient's body stably and at a relatively uniform speed, and at the same time, their hands are easily affected by external factors and shake, which can easily cause the puncture position to shift and cause damage to the patient.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A puncture positioning device for renal internal medicine comprises a vertical plate, a sliding cavity in a sliding connection is sleeved on the vertical plate, a sealing cavity is fixedly connected to the side of the sliding cavity, a piston plate in a sliding connection is penetrated on the side of the sealing cavity away from the sliding cavity, a mounting block is fixedly connected to the outer end of the piston plate, a mounting plate is fixedly connected to the side of the mounting block, a sliding groove is provided on the mounting plate, a baffle is fixedly connected to the other end of the mounting plate, a limiting plate is arranged between the mounting block and the baffle, the limiting plate is slidably connected to the sliding groove on the mounting plate, and a second spring is fixedly connected between the mounting block and the limiting plate;

[0007] A closed cavity is arranged below the sealed cavity, the closed cavity is fixedly connected to the vertical plate, the closed cavity is filled with liquid, an extrusion plate is slidably connected to the closed cavity, a plurality of circular holes are provided on the extrusion plate, a push plate is fixedly connected to the upper end of the extrusion plate, the push plate extends upward through the upper end of the closed cavity so that the push plate is slidably connected to the closed cavity, the upper end of the push plate is fixedly connected to the sealed cavity, and a buoyancy block is fixedly connected to the lower end of the extrusion plate.

[0008] Furthermore, a square plate is fixedly connected to the lower end of the vertical plate, a fixed plate is fixedly connected to the side of the square plate, a rotating shaft is rotatably connected to the fixed plate, a supporting plate is rotatably connected to the rotating shaft, and a bed board is mounted on the supporting plate.

[0009] Furthermore, a thread is formed on one end of the rotating shaft away from the fixed plate, a clamping plate is threadedly connected to the thread, and the clamping plate is slidably connected to the square plate.

[0010] Furthermore, the surfaces of the clamping plate and the supporting plate that are in contact with each other are both provided with tooth patterns.

[0011] Furthermore, a bidirectional lead screw is rotatably connected to the support plate, and L-shaped plates are provided on both sides of the support plate, and the L-shaped plates are threadedly connected to the bidirectional lead screw.

[0012] Furthermore, a fixedly connected sleeve passes through the L-shaped plate, an inner end of the sleeve is fixedly connected to a suction cup, a piston rod is slidably connected inside the sleeve, and a first spring is fixedly connected between the outer end of the piston rod and the outer wall of the L-shaped plate.

[0013] Furthermore, a water storage chamber is fixedly connected to the other side of the sliding chamber, the water storage chamber is filled with disinfectant, a connecting chamber is fixedly connected between the water storage chamber and the sealing chamber, a spraying chamber is fixedly connected to the top of the vertical plate, a water pipe is fixedly connected between the spraying chamber and the sealing chamber, and a plurality of spraying ports are opened on the lower end surface of the spraying chamber.

[0014] Furthermore, one-way valves are installed on the connecting cavity and the water pipe.

[0015] Furthermore, a third spring is fixedly connected between the sealing cavity and the mounting block.

[0016] Furthermore, the limiting plate and the opposing surface of the baffle are both provided with semicircular grooves.

[0017] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0018] Fixed connection refers to a connection in which parts or components are fixed without any relative movement. There are two types of connection: detachable and non-detachable.

[0019] (1) A removable connection is a connection that uses screws, splines, wedge pins, etc. to hold parts together. This type of connection can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0020] (2) Non-detachable connections mainly refer to welding, riveting and tenoning. Since they need to be disassembled by forging, sawing or oxygen cutting for maintenance or replacement, spare parts generally cannot be reused. At the same time, when making connections, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.).

[0021] A threaded connection refers to a detachable connection in which the connected parts are connected together using threaded parts (or the threaded parts of the connected parts).

[0022] A sliding connection is when two objects are in contact but not fixed and can slide relative to each other.

[0023] A rotational connection is a connection between parts that allows the parts to rotate relative to each other.

[0024] Beneficial effects of the present invention:

[0025] 1. Push the limit plate away from the baffle. At this time, the second spring is forced to shrink, and the puncture needle is placed between the limit plate and the baffle. The limit plate is released. Under the elastic force of the second spring, the limit plate and the baffle clamp the puncture needle, and the needle head of the puncture needle is downward. At this time, the part of the patient that needs puncture is located directly below the puncture needle. Pushing the mounting plate downward can slide downward on the vertical plate through the piston plate and the sealing chamber through the sliding chamber. When the sealing chamber moves downward, the extrusion plate is pushed downward in the closed chamber by the push plate. Since the closed chamber is filled with water, when the extrusion plate moves downward, the water on the lower side of the extrusion plate in the closed chamber flows to the upper side through the circular hole. Since the diameter of the circular hole is small and the flow rate is slow, the puncture needle can stably penetrate into the patient's body, which has better stability than the traditional handheld puncture needle.

[0026] 2. Push the mounting plate to the left and compress the third spring. When the mounting plate moves to the left, it can push the piston plate to move in the sealed chamber. At this time, the one-way valve on the connecting chamber is closed, and the one-way valve on the water pipe is opened. The piston plate can squeeze the disinfectant in the sealed chamber to flow into the spraying chamber through the water pipe. Loosen the mounting plate. The mounting plate and the piston plate move to the right and reset under the elastic force of the third spring. At this time, the one-way valve on the connecting chamber is opened, and the one-way valve on the water pipe is closed. The disinfectant in the water storage chamber can flow into the sealed chamber, and the process is repeated in sequence. With the horizontal reciprocating movement of the mounting plate and the piston plate, the water in the water storage chamber is continuously transported to the spraying chamber, and the disinfectant is sprayed on the lower structure through the spray port, thereby achieving the effect of disinfecting the components below the spraying chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a front structural schematic diagram of a renal internal medicine puncture positioning device proposed by the present invention;

[0029] Figure 2 A schematic diagram of the suction cup structure of a puncture positioning device for renal internal medicine proposed by the present invention;

[0030] Figure 3 This is a schematic diagram of the sliding cavity structure of a renal internal puncture positioning device proposed by the present invention;

[0031] Figure 4 This is a schematic diagram of the internal structure of a closed cavity of a renal internal puncture positioning device proposed by the present invention;

[0032] Figure 5 This is a schematic diagram of the closed cavity structure of a renal internal puncture positioning device proposed by the present invention;

[0033] Figure 6 This is a schematic diagram of the L-shaped plate structure of a renal internal medicine puncture positioning device proposed by the present invention;

[0034] Figure 7 This is a schematic diagram of the mounting plate structure of a renal internal medicine puncture positioning device proposed by the present invention.

[0035] In the figure: 1. square plate; 2. splint; 3. vertical plate; 4. connecting chamber; 5. water storage chamber; 6. sliding chamber; 7. water pipe; 8. spraying chamber; 9. sealing chamber; 10. mounting block; 11. limit plate; 12. closed chamber; 13. sleeve; 14. bed board; 15. L-shaped plate; 16. two-way screw; 17. rotating shaft; 18. fixing plate; 19. supporting plate; 20. suction cup; 21. first spring; 22. piston rod; 23. piston plate; 24. baffle; 25. second spring; 26. third spring; 27. push plate; 28. extrusion plate; 29. ​​buoyancy block; 30. mounting plate; 31. slide groove; 32. round hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] like Figures 1 to 7 As shown, a puncture positioning device for renal internal medicine comprises a vertical plate 3, a sliding cavity 6 is sleeved on the vertical plate 3, a sealing cavity 9 is fixedly connected to the side of the sliding cavity 6, a piston plate 23 is penetrated on the side of the sealing cavity 9 away from the sliding cavity 6, a mounting block 10 is fixedly connected to the outer end of the piston plate 23, a mounting plate 30 is fixedly connected to the side of the mounting block 10, a sliding groove 31 is opened on the mounting plate 30, a baffle 24 is fixedly connected to the other end of the mounting plate 30, a limiting plate 11 is arranged between the mounting block 10 and the baffle 24, the limiting plate 11 is slidably connected to the sliding groove 31 on the mounting plate 30, and a second spring 25 is fixedly connected between the mounting block 10 and the limiting plate 11;

[0039] A closed cavity 12 is provided below the sealed cavity 9, and the closed cavity 12 is fixedly connected to the vertical plate 3. The closed cavity 12 is filled with liquid. An extrusion plate 28 is slidably connected to the closed cavity 12. A plurality of circular holes 32 are provided on the extrusion plate 28. A push plate 27 is fixedly connected to the upper end of the extrusion plate 28. The push plate 27 passes through the upper end of the closed cavity 12 and extends upward, so that the push plate 27 is slidably connected to the closed cavity 12. The upper end of the push plate 27 is fixedly connected to the sealed cavity 9, and the lower end of the extrusion plate 28 is fixedly connected to a buoyancy block 29.

[0040] When in use, the limiting plate 11 is pushed away from the baffle plate 24. At this time, the second spring 25 is forced to shrink, placing the puncture needle between the limiting plate 11 and the baffle plate 24, and the limiting plate 11 is released. Under the elastic force of the second spring 25, the limiting plate 11 and the baffle plate 24 clamp the puncture needle, and the needle head of the puncture needle is downward. At this time, the part of the patient that needs puncture is located directly below the puncture needle, and the mounting plate 30 is pushed downward to slide downward on the vertical plate 3 through the piston plate 23 and the sealing chamber 9 through the sliding chamber 6. When the sealing chamber 9 moves downward, the squeezing plate 28 is pushed downward in the closed chamber 12 by the pushing plate 27. Since the closed chamber 12 is filled with water, when the squeezing plate 28 moves downward, the water located at the lower side of the squeezing plate 28 in the closed chamber 12 flows to the upper side through the circular hole. Since the diameter of the circular hole 32 is small and the flow rate is slow, the puncture needle can stably penetrate the patient's body, which has better stability than the traditional handheld puncture needle.

[0041] In one embodiment of the present invention, the lower end of the vertical plate 3 is fixedly connected to the square plate 1, the side of the square plate 1 is fixedly connected to the fixed plate 18, the fixed plate 18 is rotatably connected to the rotating shaft 17, the rotating shaft 17 is rotatably connected to the supporting plate 19, and the supporting plate 19 is installed with the bed board 14. The bed board 14 is a metal product with a smooth outer surface, the part of the patient that needs puncture is located on the bed board 14, and the puncture angle of the puncture needle is adjusted by rotating the vertical plate 3.

[0042] In one embodiment of the present invention, a thread is formed on one end of the rotating shaft 17 away from the fixing plate 18, and a clamping plate 2 is threadedly connected to the thread, and the clamping plate 2 is slidably connected to the square plate 1. The clamping plate 2 clamps the supporting plate 19 by rotating the rotating shaft 17, and the supporting plate 19 is fixed.

[0043] In one embodiment of the present invention, in order to improve the fixing effect, the surface of the clamping plate 2 that is in contact with the support plate 19 is provided with tooth patterns.

[0044] In one embodiment of the present invention, a bidirectional screw 16 is rotatably connected to the support plate 19, and L-shaped plates 15 are arranged on both sides of the support plate 19, and the L-shaped plates 15 are threadedly connected to the bidirectional screw 16. By rotating the bidirectional screw 16, the two L-shaped plates 15 move toward each other and fit against the side wall of the bed board 14.

[0045] In one embodiment of the present invention, a fixedly connected sleeve 13 is passed through the L-shaped plate 15, and a suction cup 20 is fixedly connected to the inner end of the sleeve 13, and a piston rod 22 is slidably connected in the sleeve 13, and a first spring 21 is fixedly connected between the outer end of the piston rod 22 and the outer wall of the L-shaped plate 15. Before the inner wall of the L-shaped plate 15 fits with the outer wall of the bed board 14, it is necessary to squeeze the two piston rods 22 and compress the first spring 21. When the L-shaped plate 15 fits with the bed board 14, the suction cup 20 can fit with the side wall of the bed board 14, and then the piston rod 22 is released. The piston rod 22 is pushed by the elastic force of the first spring 21 to move away from the L-shaped plate 15, so that negative pressure is present in the sleeve 13, which enables the suction cup 20 to be more stably adsorbed on the side wall of the bed board 14, thereby achieving the fixing effect of the support plate 19 and the bed board 14.

[0046] In one embodiment of the present invention, a water storage chamber 5 is fixedly connected to the other side of the sliding chamber 6, the water storage chamber 5 is filled with disinfectant, a connecting chamber 4 is fixedly connected between the water storage chamber 5 and the sealing chamber 9, a spraying chamber 8 is fixedly connected to the top of the vertical plate 3, a water pipe 7 is fixedly connected between the spraying chamber 8 and the sealing chamber 9, and a plurality of spraying ports are provided on the lower end surface of the spraying chamber 8. Medical devices usually need to be disinfected after use. In the present application, the connecting chamber 4 is blocked, and the mounting plate 30 is pushed to drive the mounting block 10 to move the piston plate 23 into the sealed chamber 9, and the air in the sealed chamber 9 is discharged through the water pipe 7 and the spray chamber 8. The water pipe 7 is blocked, the connecting chamber 4 is opened, and the mounting plate 30 is pulled in the opposite direction to drive the mounting block 10 to move the piston plate 23 out of the sealed chamber 9. After the disinfectant in the water storage chamber 5 is drawn into the sealed chamber 9, the water pipe 7 is opened, the connecting chamber 4 is blocked, and the mounting plate 30 is pushed to drive the mounting block 10 to move the piston plate 23 into the sealed chamber 9. The disinfectant in the sealed chamber 9 is squeezed into the spray chamber 8 through the water pipe 7, and the disinfectant is sprayed on the lower structure through the spray port to achieve the effect of disinfecting the parts below the spray chamber 8.

[0047] In one embodiment of the present invention, in order to avoid frequent blockage or opening of the connecting chamber 4 and the water pipe 7, a one-way valve is installed on both the connecting chamber 4 and the water pipe 7. The mounting plate 30 is pushed to drive the mounting block 10 to move the piston plate 23 into the sealing chamber 9. At this time, the one-way valve on the connecting chamber 4 is closed, the one-way valve on the water pipe 7 is opened, and the disinfectant is transported into the spraying chamber 8. The mounting plate 30 is pulled in the reverse direction to drive the mounting block 10 to move the piston plate 23 out of the sealing chamber 9. At this time, the one-way valve on the connecting chamber 4 is opened, the one-way valve on the water pipe 7 is closed, and the disinfectant is pumped into the sealing chamber 9.

[0048] In one embodiment of the present invention, a third spring 26 is fixedly connected between the sealing chamber 9 and the mounting block 10. When the mounting plate 30 is pushed to drive the mounting block 10 to move the piston plate 23 into the sealing chamber 9, the third spring 26 is squeezed and contracted by the mounting block 10. After the mounting plate 30 is released, the mounting block 10 is pushed to move the piston plate 23 out of the sealing chamber 9 under the elastic force of the spring 26, and the disinfectant in the water storage chamber 5 is pumped into the sealing chamber 9, reducing the operation process of medical staff.

[0049] In one embodiment of the present invention, in order to better clamp the puncture needle, semicircular grooves are provided on the opposite surfaces of the limiting plate 11 and the baffle plate 24 .

[0050] Working principle:

[0051] First, fit the upper side wall of the support plate 19 with the bed board 14, and then rotate the bidirectional lead screw 16. When the bidirectional lead screw 16 rotates, the L-shaped plate 15 moves in the center and fits the side wall of the bed board 14. Before the inner wall of the L-shaped plate 15 fits the outer wall of the bed board 14, it is necessary to squeeze the two piston rods 22 and compress the first spring 21. When the L-shaped plate 15 fits with the bed board 14, the suction cup 20 can fit with the side wall of the bed board 14, and then release the piston rod 22. Under the elastic force of the first spring 21, the piston rod 22 pushes the piston rod 22 to move away from the L-shaped plate 15, so that negative pressure is present in the sleeve 13, which enables the suction cup 20 to be more stably adsorbed on the side wall of the bed board 14, thereby fixing the support plate 19 to the bed board 14.

[0052] Then push the limit plate 11 to move to the left and compress the second spring 25, then place the puncture needle between the limit plate 11 and the baffle 24, and then release the limit plate 11. The limit plate 11 moves toward the direction of the baffle 24 under the push of the second spring 25, and cooperates with the baffle 24 to clamp and fix the puncture needle.

[0053] By pushing the vertical plate 3, the vertical plate 3 and the square plate 1 can rotate with the rotating shaft 17 as the fulcrum, so as to achieve the function of adjusting the angle of the puncture needle. When the puncture needle is adjusted to a suitable angle, the mounting plate 30 is pressed downward, and the mounting plate 30 can slide downward on the vertical plate 3 through the piston plate 23 and the sealing chamber 9 through the sliding chamber 6. When the sealing chamber 9 moves downward, the squeezing plate 28 is pushed downward in the closed chamber 12 by the pushing plate 27. Since the closed chamber 12 is filled with water, when the squeezing plate 28 moves downward, the water on the lower side of the squeezing plate 28 in the closed chamber 12 flows to the upper side through the circular hole. Since the diameter of the circular hole is small, the flow rate is slow and uniform, so that the puncture needle can stably penetrate into the patient's body, and has better stability than the traditional handheld puncture needle.

[0054] The limiting plate 11 is pushed here, and the limiting plate 11 no longer clamps the puncture needle. After the puncture needle is taken out, the mounting plate 30 is pushed to the left and the third spring 26 is compressed. When the mounting plate 30 moves to the left, it can push the piston plate 23 to move in the sealing chamber 9. At this time, the one-way valve on the connecting chamber 4 is closed, and the one-way valve on the water pipe 7 is opened. The piston plate 23 can squeeze the disinfectant in the sealing chamber 9 to flow into the spraying chamber 8 through the water pipe 7. The mounting plate 30 is released, and the mounting plate 30 and the piston plate 23 move to the right and reset under the elastic force of the third spring 26. At this time, the one-way valve on the connecting chamber 4 is opened, and the one-way valve on the water pipe 7 is closed. The disinfectant in the water storage chamber 5 can flow into the sealing chamber 9, reciprocating in sequence. With the horizontal reciprocating movement of the mounting plate 30 and the piston plate 23, the water in the water storage chamber 5 is continuously transported to the spraying chamber 8, and the disinfectant is sprayed on the lower structure through the spraying port, so as to achieve the effect of disinfecting the parts below the spraying chamber 8.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A puncture positioning device for renal internal medicine, comprising a vertical plate (3), characterized in that: The vertical plate (3) is sleeved with a sliding cavity (6) in sliding connection, the side of the sliding cavity (6) is fixedly connected with a sealing cavity (9), the side of the sealing cavity (9) away from the sliding cavity (6) is penetrated with a piston plate (23) in sliding connection, the outer end of the piston plate (23) is fixedly connected with a mounting block (10), the side of the mounting block (10) is fixedly connected with a mounting plate (30), the mounting plate (30) is provided with a sliding groove (31), the other end of the mounting plate (30) is fixedly connected with a baffle (24), a limiting plate (11) is arranged between the mounting block (10) and the baffle (24), the limiting plate (11) is slidingly connected with the sliding groove (31) on the mounting plate (30), and a second spring (25) is fixedly connected between the mounting block (10) and the limiting plate (11); A closed cavity (12) is arranged below the sealed cavity (9), the closed cavity (12) is fixedly connected to the vertical plate (3), the closed cavity (12) is filled with liquid, the closed cavity (12) is slidably connected to an extrusion plate (28), a plurality of circular holes (32) are provided on the extrusion plate (28), the upper end of the extrusion plate (28) is fixedly connected to a push plate (27), the push plate (27) passes through the upper end of the closed cavity (12) and extends upward, so that the push plate (27) is slidably connected to the closed cavity (12), the upper end of the push plate (27) is fixedly connected to the sealed cavity (9), and the lower end of the extrusion plate (28) is fixedly connected to a buoyancy block (29).

2. A nephrology puncture positioning device according to claim 1, characterized in that: The lower end of the vertical plate (3) is fixedly connected to a square plate (1), the side of the square plate (1) is fixedly connected to a fixed plate (18), the fixed plate (18) is rotatably connected to a rotating shaft (17), the rotating shaft (17) is rotatably connected to a supporting plate (19), and a bed board (14) is mounted on the supporting plate (19).

3. A nephrology puncture positioning device according to claim 2, characterized in that: A thread is formed on one end of the rotating shaft (17) away from the fixing plate (18), and a clamping plate (2) is threadedly connected to the thread. The clamping plate (2) is slidably connected to the square plate (1).

4. A puncture positioning device for renal internal medicine according to claim 3, characterized in that: The surfaces of the clamping plate (2) and the supporting plate (19) that are in contact with each other are both provided with tooth patterns.

5. A nephrology puncture positioning device according to claim 4, characterized in that: A bidirectional lead screw (16) is rotatably connected to the support plate (19), and L-shaped plates (15) are arranged on both sides of the support plate (19), and the L-shaped plates (15) are threadedly connected to the bidirectional lead screw (16).

6. A nephrology puncture positioning device according to claim 5, characterized in that: A fixedly connected sleeve (13) passes through the L-shaped plate (15), the inner end of the sleeve (13) is fixedly connected to a suction cup (20), a piston rod (22) is slidably connected inside the sleeve (13), and a first spring (21) is fixedly connected between the outer end of the piston rod (22) and the outer wall of the L-shaped plate (15).

7. A nephrology puncture positioning device according to claim 6, characterized in that: The other side of the sliding cavity (6) is fixedly connected to a water storage cavity (5), the water storage cavity (5) is filled with disinfectant, a connecting cavity (4) is fixedly connected between the water storage cavity (5) and the sealing cavity (9), a spraying cavity (8) is fixedly connected to the top of the vertical plate (3), a water pipe (7) is fixedly connected between the spraying cavity (8) and the sealing cavity (9), and a plurality of spraying ports are provided on the lower end surface of the spraying cavity (8).

8. A nephrology puncture positioning device according to claim 7, characterized in that: Both the connecting chamber (4) and the water delivery pipe (7) are equipped with one-way valves.

9. A puncture positioning device for renal internal medicine according to claim 8, characterized in that: A third spring (26) is fixedly connected between the sealing cavity (9) and the mounting block (10).

10. A puncture positioning device for renal internal medicine according to claim 9, characterized in that: The opposing surfaces of the limiting plate (11) and the baffle plate (24) are both provided with semicircular grooves.

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