Puncture auxiliary device and method for nephrology department

Abstract

The invention belongs to the technical field of puncture, and particularly relates to a nephrology department puncture auxiliary device and method. The two auxiliary assemblies each comprise an auxiliary frame. A first sliding groove is formed in the outer ring face of the auxiliary frame. A positioning assembly is arranged between the two auxiliary frames; the positioning assembly comprises a moving plate; connecting plates are fixedly connected to the positions, located on the two sides of the movable plate, of the bottom of the movable plate. A second sliding groove is formed in the movable plate. A sliding block is slidably connected into the second sliding groove. A rotating groove is formed in the sliding block; a rotating drum is rotationally connected into the rotating groove; a B ultrasonic probe is arranged in the rotary drum; a puncture hole is formed in the side, close to the rotary drum, of the sliding block. By arranging the auxiliary assembly, the B-ultrasonic probe and the puncture needle can move along with the body of the patient, and therefore the situation that puncture fails due to the fact that the puncture needle exists independently and cannot move along with the body of the patient is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of puncture, and in particular to a puncture assisting device and an assisting method for renal internal medicine. Background Art

[0002] Renal puncture, the full name of which is renal puncture biopsy, is a procedure in which a puncture needle is inserted through the skin into living kidney tissue under local anesthesia, and a small amount of kidney tissue is removed using the puncture needle for microscopic pathological analysis. The results of renal puncture are an important basis for disease diagnosis, treatment, and prognosis.

[0003] The specific operation process of renal puncture is as follows: after urinating, the patient lies prone on the examination table, with a pillow placed on the abdomen, the kidney is pushed to the dorsal side to fix it, the arms are extended forward, the head is tilted to one side, and the lower part of the right kidney is generally selected as the puncture point. With the puncture point as the center, the back skin is disinfected, the B-ultrasound probe is used for imaging, and 1-2% lidocaine is used for local anesthesia. Take a 10cm long intracardiac injection needle and pierce it vertically from the puncture point into the renal capsule, and inject a small amount of local anesthetic. Insert the puncture needle vertically into the renal capsule, and observe the movement of the upper and lower parts of the kidney with breathing. When the lower pole of the kidney moves to the best position for puncture, ask the patient to hold his breath, and immediately and quickly insert the puncture needle into the kidney 2-3cm, pull out the puncture needle, and ask the patient to breathe normally, and check whether the renal tissue has been obtained;

[0004] When locating the patient's puncture point, it is necessary to use a B-ultrasound probe to determine the puncture position. Once the puncture point is determined, puncture can be performed. Since the puncture needle is independent, the position of the puncture needle needs to be adjusted according to the patient's puncture point. If the patient moves during puncture, the puncture needle and the puncture point will be misaligned, which will cause puncture failure. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve the above technical problems, the present invention proposes a nephrology puncture assisting device and assisting method. The present invention can indirectly enable the B-ultrasound probe and the puncture needle to move with the patient's body by setting an auxiliary component, thereby avoiding the situation where the puncture needle exists alone and cannot move with the patient's body, resulting in puncture failure. The specific structure is as follows:

[0006] A nephrology puncture auxiliary device comprises two auxiliary components; both of the two auxiliary components comprise an auxiliary frame;

[0007] The bottom of the auxiliary frame is provided with an opening; the two sides of the auxiliary frame are bent downwards, mainly to adapt to the back contour of the patient;

[0008] A first slide groove is provided on the outer ring surface of the auxiliary frame, and the cross section of the first slide groove is convex; a convex block is slidably connected in the first slide groove, and the convex block part extends out of the first slide groove;

[0009] Both sides of the auxiliary frame are fixedly connected with straps at the bottom of the auxiliary frame; the two straps are provided with Velcro on one side away from the auxiliary frame;

[0010] A positioning assembly is provided between the two auxiliary frames; the positioning assembly includes a moving plate; the bottom of the moving plate is located on both sides of the moving plate and is fixedly connected with connecting plates, and the connecting plates are fixedly connected to the convex blocks below;

[0011] A second slide groove is provided in the movable plate; a slider is slidably connected in the second slide groove; a rotating groove is provided on the slider; a rotating drum is rotatably connected in the rotating groove;

[0012] The rotating drum is provided with a B-ultrasound probe, and the handle of the B-ultrasound probe slides in the rotating drum. The handle of the B-ultrasound probe can only slide up and down in the rotating drum. When the handle of the B-ultrasound probe rotates, the rotating drum will be driven to rotate; a spring is fixedly connected to the bottom of the rotating drum, and the other side of the spring is fixedly connected to the B-ultrasound probe;

[0013] The B-ultrasound probe extends to the lower position of the auxiliary frame; a puncture hole is provided on the side of the sliding block close to the rotating drum, and the puncture hole is used to place the puncture needle.

[0014] Preferably, a thread is provided in the puncture hole; a limiting sleeve is provided in the puncture hole, and a thread engaging with the puncture hole is provided on the outer ring surface of the limiting sleeve;

[0015] The limiting sleeve is installed in the puncture hole through threaded engagement, and the limiting sleeve is used to guide the puncture needle.

[0016] Preferably, the inner cavity of the sleeve is provided with a sterile cotton layer.

[0017] Preferably, two electric push rods are installed in the slider on both sides of the limiting sleeve;

[0018] The tops of the two electric push rods are fixedly connected to a mounting block; a threaded hole is provided in the middle of the mounting block, and the threaded hole corresponds to the limiting sleeve;

[0019] A threaded column is fixedly mounted on the puncture needle, and the threaded column and the threaded hole are meshed with each other.

[0020] Preferably, two limiting rollers are installed at the top and bottom of the limiting sleeve, and during puncture, the puncture needle will pass through the two limiting rollers;

[0021] When the limiting sleeve is installed, the two limiting rollers located at the top and the bottom of the limiting sleeve can pass through the puncture hole.

[0022] Preferably, the auxiliary frame includes a left frame body and a right frame body;

[0023] The left frame and the right frame are in contact with each other in an initial state; the first slide groove is provided on the right frame;

[0024] The left frame is provided with a slideway, and the slideway extends to a position where the right frame and the left frame fit together; an extension shaft is fixedly connected to an end surface of the right frame close to the left frame, and the extension shaft extends into the slideway and is slidably connected to the slideway;

[0025] A spring is fixedly connected to one end surface of the extension shaft extending into the slideway, and the other side of the spring is fixedly connected to the bottom position of the slideway.

[0026] Preferably, the extension shaft is made of elastic rubber material.

[0027] Preferably, evenly arranged rubber suction cups are fixedly connected to the inner ring surface of the auxiliary frame.

[0028] An assisting method for a puncture assisting device for renal internal medicine, the method is applicable to the above-mentioned assisting device, and the specific assisting method is:

[0029] Step 1: When a renal puncture is required for a patient, firstly, the two auxiliary frames are fitted to the patient's waist, and then the auxiliary frames are tied to the patient's waist with two straps;

[0030] Step 2: Then use the positioning component to locate the specific kidney puncture point. After the puncture point is located, puncture can be performed;

[0031] Step 3: During the puncture, use the B-ultrasound probe to observe the movement of the upper and lower parts of the kidney with breathing. When the lower pole of the kidney moves to the best position for puncture, ask the patient to hold his breath, immediately insert the puncture needle into the kidney, then use the biopsy needle to remove a small amount of kidney tissue, and then remove the puncture needle.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1. The present invention discloses a nephrology puncture assisting device and assisting method. During the puncture process, if the patient's body moves, since the assisting frame is tied to the patient's waist, when the patient moves, the assisting frame and the positioning assembly will be driven to move, thereby driving the B-ultrasound probe and the puncture needle in the puncture hole to move. In this process, the B-ultrasound probe and the puncture needle can be indirectly made to move with the patient's body, thereby avoiding the situation where the puncture needle exists alone and cannot move with the patient's body, resulting in misalignment between the puncture needle and the puncture point, thereby causing puncture failure.

[0034] 2. The present invention discloses a nephrology puncture assisting device and assisting method. During the process of the puncture needle being gradually inserted into the patient's body, the limiting roller can limit the puncture needle, thereby preventing the puncture needle from shaking during puncture. At the same time, by fixing the puncture needle and automatically puncturing, the human body can indirectly drive the puncture needle to move during the rotation process, thereby preventing the puncture needle from being hand-held and causing the puncture needle to rotate in the hands of medical staff when the patient's body moves. The rotating puncture needle will not only cause puncture failure, but also cause damage to the patient's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] Figure 1 is a perspective view of the auxiliary device of the present invention;

[0037] Figure 2 The present invention Figure 1 A partial enlarged view of the middle part;

[0038] Figure 3 is a stereogram of the auxiliary device of the present invention from another perspective;

[0039] Figure 4 The present invention Figure 3 A partial enlarged view of point B in the middle;

[0040] Figure 5 is a top view of the auxiliary device of the present invention;

[0041] Figure 6 The present invention Figure 5 Sectional view at CC;

[0042] Figure 7 The present invention Figure 6 A partial enlarged view of point D in the middle;

[0043] Figure 8 The present invention Figure 5 Sectional view at EE;

[0044] Fig. 9 The present invention Figure 8 A partial enlarged view of point F in the middle.

[0045] In the figure:

[0046] 1. Auxiliary frame; 101. Left frame; 102. Right frame; 103. Slide; 104. Extension shaft; 105. Rubber suction cup; 11. First slide groove; 12. Convex block; 13. Strap; 2. Moving plate; 21. Connecting plate; 22. Second slide groove; 23. Sliding block; 24. Rotating groove; 25. Rotating drum; 26. B-ultrasound probe; 3. Puncture hole; 31. Limit sleeve; 32. Puncture needle; 33. Threaded column; 34. Electric push rod; 35. Mounting block; 36. Threaded hole; 37. Limit roller. DETAILED DESCRIPTION

[0047] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0048] like Figures 1 to 9 As shown, the nephrology puncture assisting device and assisting method described in the present invention are specifically as follows:

[0049] Embodiment 1

[0050] A nephrology puncture auxiliary device, comprising two auxiliary components; both of the two auxiliary components comprise an auxiliary frame 1;

[0051] The bottom of the auxiliary frame 1 is provided with an opening; the two sides of the auxiliary frame 1 are bent downward, mainly to adapt to the back contour of the patient;

[0052] The auxiliary frame 1 is provided with a first slide groove 11 on its outer ring surface, and the cross section of the first slide groove 11 is convex; the first slide groove 11 is slidably connected with a convex block 12, and the convex block 12 partially extends out of the first slide groove 11;

[0053] Both sides of the auxiliary frame 1 are fixedly connected with straps 13 at the bottom of the auxiliary frame 1; the two straps 13 are provided with Velcro on one side away from the auxiliary frame 1;

[0054] A positioning assembly is provided between the two auxiliary frames 1; the positioning assembly includes a moving plate 2; the bottom of the moving plate 2 is located at both sides of the moving plate 2 and is fixedly connected with connecting plates 21, and the connecting plates 21 are fixedly connected to the convex block 12 below;

[0055] The movable plate 2 is provided with a second slide groove 22; a slider 23 is slidably connected to the second slide groove 22; a rotating groove 24 is provided on the slider 23; a rotating drum 25 is rotatably connected to the rotating groove 24;

[0056] The rotating drum 25 is provided with a B-ultrasound probe 26, and the handle of the B-ultrasound probe 26 slides in the rotating drum 25. The handle of the B-ultrasound probe 26 can only slide up and down in the rotating drum 25. When the handle of the B-ultrasound probe 26 rotates, the rotating drum 25 will be driven to rotate; a spring is fixedly connected to the bottom of the rotating drum 25, and the other side of the spring is fixedly connected to the B-ultrasound probe 26;

[0057] The B-ultrasound probe 26 extends to the lower position of the auxiliary frame 1; the slider 23 is provided with a puncture hole 3 on one side close to the rotating drum 25, and the puncture hole 3 is used to place a puncture needle 32;

[0058] Specifically, when a patient needs to undergo a renal puncture, the medical staff first ties the two auxiliary devices to the patient's waist, first separates the two straps 13 on each auxiliary frame 1, then fits the two auxiliary frames 1 to the patient's waist, then wraps the straps 13 on the two auxiliary frames 1 around the patient's abdomen, and uses Velcro to stick the two straps 13 to each other. When the two auxiliary frames 1 are tied to the patient's waist, the patient's kidneys are located between the two auxiliary frames 1, and the movable plate 2 is located between the two auxiliary frames 1, and the B-ultrasound probe 26 installed on the movable plate 2 is in contact with the patient's waist. 26 extends to the lower position of the auxiliary frame 1, so in the process of the two auxiliary frames 1 gradually approaching the patient's waist, the B-ultrasound probe 26 will first contact the patient's waist position, and as the two auxiliary frames 1 are attached to the patient's waist, the B-ultrasound probe 26 will move to the side of the rotating drum 25 under the push of the patient's waist, and at the same time, the B-ultrasound probe 26 will drive the handle on the B-ultrasound probe 26 to slide upward in the rotating drum 25, and at the same time, the B-ultrasound probe 26 will compress the spring connecting the rotating drum 25 and the B-ultrasound probe 26. When the two auxiliary frames 1 are tied to the patient's waist position, the positioning component can then be used to locate the specific kidney puncture point;

[0059] More specifically, when locating the kidney puncture point, the medical staff first pushes the movable plate 2 to move toward the right kidney position, the movable plate 2 will drive the connecting plate 21 to move, and the connecting plate 21 will drive the convex block 12 to move in the first slide groove 11, and the movable plate 2 will drive the slider 23 to move, and the slider 23 will drive the rotating drum 25 and the B-ultrasound probe 26 in the rotating drum 25 to move toward the right kidney position. During the movement of the B-ultrasound probe 26, since the B-ultrasound probe 26 fits the patient's waist, the B-ultrasound probe 26 will move along the patient's waist. If there is a gap between the patient's waist and the auxiliary frame 1, at this time, the B-ultrasound probe 26 has moved one end distance upward and compressed the connecting rotating drum 25 and The spring of the B-ultrasound probe 26, under the action of the spring, will push the B-ultrasound probe 26 to always move along the patient's back, so as to avoid the separation of the B-ultrasound probe 26 and the patient's waist. At the same time, during the movement of the B-ultrasound probe 26, the position of the right kidney can be observed. When the B-ultrasound probe 26 moves to the approximate position of the right kidney, the medical staff pushes the handle on the B-ultrasound probe 26 to move, and the handle on the B-ultrasound probe 26 drives the rotating drum 25 and the slider 23 to slide in the second slide groove 22. At the same time, the handle on the B-ultrasound probe 26 can be rotated, and the rotating drum 25 will be driven to rotate in the rotating groove 24 during the rotation, so that the direction of the B-ultrasound probe 26 can be adjusted, so as to accurately locate the puncture point.

[0060] Further, when the puncture point is determined, the puncture hole 3 on the slider 23 is aligned with the puncture point, and then the puncture needle 32 is inserted into the puncture hole 3, and the movement of the upper and lower poles of the kidney with breathing is observed through the B-ultrasound probe 26. When the lower pole of the kidney moves to the best position for puncture, the patient is asked to hold his breath, and the puncture needle 32 is immediately inserted into the kidney. Then, a small amount of kidney tissue is taken out with a biopsy needle, and then the puncture needle 32 is pulled out;

[0061] Furthermore, during the puncture process, if the patient's body moves, since the auxiliary frame 1 is tied to the patient's waist, when the patient moves, the auxiliary frame 1 and the positioning component will be driven to move, thereby driving the B-ultrasound probe 26 and the puncture needle 32 in the puncture hole 3 to move. In this process, the B-ultrasound probe 26 and the puncture needle 32 can be indirectly made to move with the patient's body, thereby avoiding the situation where the puncture needle 32 exists alone and cannot move with the patient's body, resulting in misalignment between the puncture needle 32 and the puncture point, thereby causing puncture failure.

[0062] Embodiment 2

[0063] The puncture hole 3 is provided with a thread; a limiting sleeve 31 is provided in the puncture hole 3, and a thread engaging with the puncture hole 3 is provided on the outer surface of the limiting sleeve 31;

[0064] The limiting sleeve 31 is installed in the puncture hole 3 by threaded engagement, and the limiting sleeve 31 is used to guide the puncture needle 32;

[0065] In this embodiment, a sterile cotton layer is provided in the inner cavity of the sleeve;

[0066] In this embodiment, two electric push rods 34 are installed in the slider 23 on both sides of the limiting sleeve 31;

[0067] The tops of the two electric push rods 34 are fixedly connected to a mounting block 35; a threaded hole 36 is formed in the middle of the mounting block 35, and the threaded hole 36 corresponds to the limiting sleeve 31;

[0068] A threaded column 33 is fixedly mounted on the puncture needle 32, and the threaded column 33 and the threaded hole 36 are meshed with each other;

[0069] In this embodiment, two limiting rollers 37 are installed at the top and bottom of the limiting sleeve 31. During puncture, the puncture needle 32 passes through the two limiting rollers 37.

[0070] When the limiting sleeve 31 is installed, the two limiting rollers 37 located at the top and bottom of the limiting sleeve 31 can pass through the puncture hole 3 .

[0071] Specifically, after the puncture point on the patient's waist is determined, the puncture needle 32 is passed through the threaded hole 36 in the mounting block 35, and then the puncture needle 32 first passes through the two limiting rollers 37 at the top of the limiting sleeve 31, and then passes through the limiting sleeve 31. When the puncture needle 32 passes through the bottom of the limiting sleeve 31, it passes through the two limiting rollers 37 at the bottom of the limiting sleeve 31. When the threaded column 33 on the puncture needle 32 contacts the threaded hole 36, the threaded column 33 is rotated, and the threaded column 33 is gradually screwed into the threaded hole 36. When the threaded column 33 is completely screwed into the threaded hole 36, the patient can be prepared for puncture.

[0072] More specifically, when puncturing, the electric push rod 34 is controlled to contract, thereby driving the mounting block 35 to move downward, and at the same time driving the puncture needle 32 to move downward and be inserted into the patient's body. Since a sterilizing cotton layer is provided in the limiting sleeve 31, when the puncture needle 32 passes through the limiting sleeve 31, the sterilizing cotton layer can sterilize the puncture needle 32 again;

[0073] Furthermore, in the process of gradually inserting the puncture needle 32 into the patient's body, the limiting roller 37 can limit the puncture needle 32, thereby preventing the puncture needle 32 from shaking during puncture. At the same time, by fixing the puncture needle 32 and automatically puncturing, the human body can indirectly drive the puncture needle 32 to move during the rotation process, thereby preventing the puncture needle 32 from being hand-held and causing the puncture needle 32 to rotate in the hands of medical staff when the patient's body moves. The rotating puncture needle 32 will not only cause puncture failure, but also cause damage to the patient's body.

[0074] Embodiment 3

[0075] The auxiliary frame 1 includes a left frame body 101 and a right frame body 102;

[0076] The left frame 101 and the right frame 102 are in contact with each other in an initial state; the first slide groove 11 is provided on the right frame 102;

[0077] A slideway 103 is provided in the left frame 101, and the slideway 103 extends to a position where the right frame 102 and the left frame 101 are in contact with each other; an extension shaft 104 is fixedly connected to an end surface of one side of the right frame 102 close to the left frame 101, and the extension shaft 104 extends into the slideway 103 and is slidably connected to the slideway 103;

[0078] A spring is fixedly connected to one end surface of the extension shaft 104 extending into the slideway 103, and the other end of the spring is fixedly connected to the bottom position of the slideway 103;

[0079] In this embodiment, the extension shaft 104 is made of elastic rubber material;

[0080] In this embodiment, the inner surface of the auxiliary frame 1 is fixedly connected with uniformly arranged rubber suction cups 105;

[0081] Specifically, since the extension shaft 104 fixedly connected to the right frame 102 slides in the slideway 103 provided in the left frame 101, when it is necessary to perform puncture on a patient with a thick waist, the left frame 101 and the right frame 102 are pulled to opposite sides, so that the left frame 101 and the right frame 102 are separated from each other, and at the same time, the right frame 102 will pull the extension shaft 104 to gradually extend out of the slideway 103, and lengthen the spring connecting the extension shaft 104 and the slideway 103, so that the overall width of the auxiliary frame 1 can be increased. When the overall width of the auxiliary frame 1 is increased, the auxiliary frame 1 is fitted to the patient's waist, and then the strap 13 is glued tightly with Velcro;

[0082] More specifically, since the extension shaft 104 is made of elastic rubber material, when the left frame 101 and the right frame 102 are separated, the positions of the left frame 101 and the right frame 102 can be changed by bending the extension shaft 104, so that the left frame 101 and the right frame 102 can be better fitted to the patient's waist, avoiding the auxiliary frame 1 being an integral part and inconvenient to change the positions of the left frame 101 and the right frame 102;

[0083] Since the inner circle of the auxiliary frame 1 is fixedly connected with the uniformly arranged rubber suction cups 105, when the auxiliary frame 1 contacts the patient's waist, the rubber suction cups 105 will be adsorbed on the patient's waist, thereby further fixing the auxiliary frame 1 to prevent the auxiliary frame 1 from sliding on the patient's waist, thereby causing the puncture needle 32 to be misaligned with the puncture point.

[0084] An assisting method for a puncture assisting device for renal internal medicine, the method is applicable to the above-mentioned assisting device, and the specific assisting method is:

[0085] Step 1: When a renal puncture is required for a patient, firstly, the two auxiliary frames 1 are fitted to the patient's waist, and then the auxiliary frames 1 are tied to the patient's waist with two straps 13;

[0086] Step 2: Then use the positioning component to locate the specific kidney puncture point. After the puncture point is located, puncture can be performed;

[0087] Step 3: During the puncture, the B-ultrasound probe 26 is used to observe the movement of the upper and lower parts of the kidney with breathing. When the lower pole of the kidney moves to the best position for puncture, the patient is asked to hold his breath and the puncture needle 32 is immediately inserted into the kidney. A small amount of kidney tissue is then removed using a biopsy needle, and the puncture needle 32 is then pulled out.

[0088] 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 to the above embodiments. 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, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A puncture assisting device for renal internal medicine, characterized in that: It comprises two auxiliary components; both of the auxiliary components comprise an auxiliary frame (1); The auxiliary frame (1) has an opening at the bottom; the two sides of the auxiliary frame (1) are bent downwards, mainly to adapt to the back contour of the patient; The auxiliary frame (1) has a first slide groove (11) on its outer ring surface, and the cross section of the first slide groove (11) is convex; a convex block (12) is slidably connected in the first slide groove (11), and a portion of the convex block (12) extends out of the first slide groove (11); Both sides of the auxiliary frame (1) are fixedly connected to straps (13) at the bottom of the auxiliary frame (1); Velcro is provided on the side of the two straps (13) away from the auxiliary frame (1); A positioning assembly is provided between the two auxiliary frames (1); the positioning assembly comprises a movable plate (2); the bottom of the movable plate (2) is fixedly connected to connecting plates (21) at positions on both sides of the movable plate (2), and the connecting plates (21) are fixedly connected to the convex blocks (12) below; A second slide groove (22) is provided in the movable plate (2); a slider (23) is slidably connected in the second slide groove (22); a rotating groove (24) is provided on the slider (23); a rotating drum (25) is rotatably connected in the rotating groove (24); The rotating drum (25) is provided with a B-ultrasound probe (26), and the handle of the B-ultrasound probe (26) slides in the rotating drum (25). The handle of the B-ultrasound probe (26) can only slide up and down in the rotating drum (25). When the handle of the B-ultrasound probe (26) rotates, the rotating drum (25) is driven to rotate. A spring is fixedly connected to the bottom of the rotating drum (25), and the other side of the spring is fixedly connected to the B-ultrasound probe (26). The B-ultrasound probe (26) extends to a position below the auxiliary frame (1); a puncture hole (3) is provided on a side of the slider (23) close to the rotating drum (25), and a puncture needle (32) is placed in the puncture hole (3).

2. A nephrology puncture assisting device according to claim 1, characterized in that: The puncture hole (3) is provided with a thread; a limiting sleeve (31) is provided in the puncture hole (3), and a thread meshing with the puncture hole (3) is provided on the outer surface of the limiting sleeve (31); The limiting sleeve (31) is installed in the puncture hole (3) by threaded engagement, and the limiting sleeve (31) is used to guide the puncture needle (32).

3. A nephrology puncture assisting device according to claim 2, characterized in that: The inner cavity of the sleeve is provided with a sterilizing cotton layer.

4. A nephrology puncture assisting device according to claim 3, characterized in that: Two electric push rods (34) are installed in the slider (23) on both sides of the limiting sleeve (31); The tops of the two electric push rods (34) are fixedly connected to a mounting block (35); a threaded hole (36) is provided in the middle of the mounting block (35), and the threaded hole (36) corresponds to the limiting sleeve (31); A threaded column (33) is fixedly mounted on the puncture needle (32), and the threaded column (33) and the threaded hole (36) are meshed with each other.

5. A nephrology puncture assisting device according to claim 4, characterized in that: Two limiting rollers (37) are installed at the top and bottom of the limiting sleeve (31), and during puncture, the puncture needle (32) will pass through the two limiting rollers (37); When the limiting sleeve (31) is installed, the two limiting rollers (37) located at the top and bottom of the limiting sleeve (31) can pass through the puncture hole (3).

6. A nephrology puncture assisting device according to claim 5, characterized in that: The auxiliary frame (1) comprises a left frame body (101) and a right frame body (102); The left frame (101) and the right frame (102) are in contact with each other in an initial state; the first slide groove (11) is provided on the right frame (102); A slideway (103) is provided in the left frame (101), and the slideway (103) extends to a position where the right frame (102) and the left frame (101) are in contact with each other; an extension shaft (104) is fixedly connected to an end surface of one side of the right frame (102) close to the left frame (101), and the extension shaft (104) extends into the slideway (103) and is slidably connected to the slideway (103); A spring is fixedly connected to one end surface of the extension shaft (104) extending into the slideway (103), and the other side of the spring is fixedly connected to the bottom position of the slideway (103).

7. A renal puncture assisting device according to claim 6, characterized in that: The extension shaft (104) is made of elastic rubber material.

8. A nephrology puncture assisting device according to claim 7, characterized in that: The inner ring surface of the auxiliary frame (1) is fixedly connected with uniformly arranged rubber suction cups (105).

9. An assisting method of a puncture assisting device for renal internal medicine, characterized in that: The method is applicable to the auxiliary device according to any one of claims 1 to 8, and the specific auxiliary method is: Step 1: When a renal puncture is required for a patient, firstly, the two auxiliary frames (1) are fitted to the patient's waist, and then the auxiliary frames (1) are tied to the patient's waist using two straps (13); Step 2: Then use the positioning component to locate the specific kidney puncture point. After the puncture point is located, puncture can be performed; Step 3: During the puncture, the B-ultrasound probe (26) is used to observe the movement of the upper and lower parts of the kidney with breathing. When the lower part of the kidney moves to the best position for puncture, the patient is asked to hold his breath and the puncture needle (32) is immediately inserted into the kidney. A small amount of kidney tissue is then removed using a biopsy needle, and the puncture needle (32) is then removed.

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