Adjustable puncture device for nephrology department

Abstract

The adjustable puncture device for the nephrology department structurally comprises a supporting device, four supporting plates and a puncture body, the supporting plates are arranged at the top of the supporting device, the supporting plates are arranged on the four side end faces of the top of the supporting device, and the puncture body is fixedly connected to the top end faces of the supporting plates; the puncture body comprises a supporting block, a penetrating groove, an adjusting frame and a puncture device, the side end face of the supporting block is fixedly connected to the top end face of the supporting plate, the penetrating groove is located in the middle of the interior of the supporting block, and the adjusting frame is clamped with the front side end face and the rear side end face of the penetrating groove. According to the kidney puncture device, the telescopic tube abuts against the puncture needle cylinder to puncture the kidney of a patient, then a reverse button of the control panel is pressed down, the telescopic tube can drive the puncture needle cylinder to be pulled out upwards, glomerulus in the kidney is obtained, the kidney puncture accuracy can be improved, and the puncture success rate is increased.

Description

Technical Field

[0001] This invention relates to the field of nephrology medical device technology, specifically an adjustable puncture device for nephrology. Background Technology

[0002] Kidney biopsy, also known as renal puncture biopsy, involves the following steps: The lower pole of the right kidney is typically selected as the puncture point. The skin on the back is disinfected, a sterile drape is applied, and a sterile ultrasound probe is used for imaging. Local anesthesia with 1-2% lidocaine is administered. A 10cm intracardiac injection needle is inserted vertically into the renal capsule through the puncture point, and a small amount of local anesthetic is injected. The needle is then inserted vertically into the renal capsule, and the movement of the kidney's upper and lower poles with respiration is observed. When the lower pole of the kidney reaches the optimal puncture position, the patient is instructed to hold their breath, and the needle is immediately and quickly inserted 2-3cm into the kidney. The needle is then withdrawn, and the patient is instructed to breathe normally. The kidney tissue is checked for and its length is measured. After observing at least five glomeruli under a dissecting microscope, the sample is sent for light microscopy, electron microscopy, and immunofluorescence analysis.

[0003] Based on the above findings of the inventors, the existing adjustable puncture device for nephrology has the following main shortcomings. For example, the kidney puncture device requires manual operation. During the operation, the doctor and the patient need to hold their breath in order to puncture the needle at the optimal position in the kidney to extract the glomerulus. However, the patient's breath-holding time is relatively short, and the doctor needs to aim and puncture in a short time. The puncture needle is prone to deviation from the aiming position, resulting in the kidney puncture failure and the inability to extract the glomerulus. Summary of the Invention

[0004] To address the above problems, the present invention provides an adjustable puncture device for nephrology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: an adjustable puncture device for nephrology, the structure of which includes a support device, a support plate, and a puncture body. The support device is provided with a support plate on its top, and there are four support plates arranged on the four side end faces of the top of the support device. The puncture body is fixedly connected to the top end face of the support plate.

[0006] Furthermore, the puncture body includes a support block, a through groove, an adjustment frame, and a puncture device. The side end face of the support block is fixedly connected to the top end face of the support plate. The through groove is located in the middle of the inside of the support block. The adjustment frame engages with the front and rear end faces of the through groove. The puncture device passes through the inside of the adjustment frame. The left and right sides of the puncture device are movably engaged with the adjustment frame.

[0007] Furthermore, the puncture device includes a frame, a servo motor, a transmission rod, a control panel, a telescopic tube, a depth limiting device, and a puncture needle. The left and right end faces of the frame engage with the inner end faces of the adjustment frame. The servo motor is mounted on the top end face of the frame. The transmission rod is located inside the frame and meshes with the servo motor. The control panel is located on the top end face of the frame. The telescopic tube engages with the inside of the frame and is threadedly connected to the transmission rod. The depth limiting device is fixedly connected to the bottom end face of the frame. The puncture needle is mounted on the bottom end face of the telescopic tube and engages with the end face of the depth limiting device.

[0008] Furthermore, the depth limiting device includes a support plate, an adjusting groove, a depth limiting block, and a fixing threaded block. The support plate is fixedly connected to the bottom end face of the frame. The adjusting groove is located on the end face of the support plate. The depth limiting block is engaged with the end face of the adjusting groove and is movably engaged with the end face of the puncture needle. The fixing threaded block is threadedly engaged with the end face of the depth limiting block. The depth limiting block is annular.

[0009] Furthermore, the depth limiting block includes a threaded rod, a depth limiting ring, a buffer ring, and a laser positioner. The threaded rod is engaged with the end face of the adjusting groove, the depth limiting ring is fixedly connected to the end face of the threaded rod, the buffer ring is disposed on the top end face of the depth limiting ring, and the laser positioner is disposed on the bottom end face of the depth limiting ring. The buffer ring is made of rubber.

[0010] Furthermore, the support device includes a support frame, engaging blocks, a suction cup, an inner groove, a pressing block, a sealing block, a return spring, and vent holes. The top of the support frame is fixedly connected to the support plate. Four engaging blocks are provided and are respectively installed on the four side end faces of the support frame. The suction cup is fixedly connected to the bottom end face of the engaging blocks. The inner groove is located inside the engaging blocks. The pressing block engages inside the inner groove. The sealing block is fixedly connected to the bottom end face of the pressing block, and the pressing block is movably engaged with the end face of the suction cup. The return spring is installed on the end face of the inner groove. Two vent holes are provided and are respectively located on the left and right side end faces of the engaging blocks. The return spring is movably engaged with the pressing block.

[0011] Furthermore, the sealing block includes a connecting rod, a guide block, and a rubber layer. The connecting rod is fixedly connected to the bottom end face of the pressing block. The guide block is disposed at the bottom of the connecting rod. The rubber layer is nested on the outer end face of the guide block. The guide block is made of plastic and has high elasticity. Beneficial effects

[0012] Compared with the prior art, the present invention has the following beneficial effects: The puncture device of the present invention can rotate back and forth, allowing for 360-degree angle fine-tuning, thereby adjusting the puncture device to the optimal angle for kidney puncture and sampling.

[0013] This invention instructs the patient to hold their breath and simultaneously press the start button on the control panel. This allows the telescopic tube to press against the puncture needle to puncture the patient's kidney. Then, pressing the reverse button on the control panel allows the telescopic tube to pull the puncture needle upwards, obtaining the glomeruli from the kidney. This improves the accuracy and success rate of kidney puncture.

[0014] This invention utilizes the end face of the pressing support frame to allow the suction cup to adhere to the patient's skin, preventing displacement during kidney puncture and improving the accuracy of kidney puncture. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an adjustable puncture device for nephrology according to the present invention.

[0016] Figure 2 This is a top view of the puncture body structure of the present invention.

[0017] Figure 3 This is a front view structural schematic diagram of the puncture device of the present invention.

[0018] Figure 4 This is a front view structural diagram of the depth limiting device of the present invention.

[0019] Figure 5 This is a top view of the depth-limiting block structure of the present invention.

[0020] Figure 6 This is a front view structural diagram of the support device of the present invention.

[0021] Figure 7 This is a front view structural diagram of the sealing block of the present invention.

[0022] In the diagram: Support device 1, Support plate 2, Puncture body 3, Support block 31, Through groove 32, Adjustment frame 33, Puncture device 34, Frame 341, Servo motor 342, Transmission rod 343, Control panel 344, Telescopic tube 345, Depth limiting device 346, Puncture syringe 347, Support plate a1, Adjustment groove a2, Depth limiting block a3, Fixed threaded block a4, Threaded rod a31, Depth limiting ring a32, Buffer ring a33, Laser locator a34, Support frame 11, Locking block 12, Suction cup 13, Inner groove 14, Pressing block 15, Sealing block 16, Reset spring 17, Vent hole 18, Connecting rod 161, Guide block 162, Rubber layer 163. Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] Example 1: Please refer to Figures 1-5 The specific embodiments of the present invention are as follows: Its structure includes a support device 1, a support plate 2, and a puncture body 3. The support device 1 is provided with a support plate 2 on its top. There are four support plates 2, and the support plates 2 are arranged on the four side end faces of the top of the support device 1. The puncture body 3 is fixedly connected to the top end face of the support plate 2.

[0025] The puncture body 3 includes a support block 31, a through groove 32, an adjustment frame 33, and a puncture device 34. The side end face of the support block 31 is fixedly connected to the top end face of the support plate 2. The through groove 32 is located in the middle of the support block 31. The adjustment frame 33 engages with the front and rear end faces of the through groove 32. The puncture device 34 passes through the interior of the adjustment frame 33. The left and right sides of the puncture device 34 are movably engaged with the adjustment frame 33, which facilitates 360-degree fine adjustment of the puncture device 34, allowing it to be adjusted to the optimal angle for kidney puncture and sampling.

[0026] The puncture device 34 includes a frame 341, a servo motor 342, a transmission rod 343, a control panel 344, a telescopic tube 345, a depth limiting device 346, and a puncture syringe 347. The left and right end faces of the frame 341 engage with the inner end faces of the adjusting frame 33. The servo motor 342 is mounted on the top end face of the frame 341. The transmission rod 343 is located inside the frame 341 and meshes with the servo motor 342. The control panel 344 is located on the top end face of the frame 341. The telescopic tube 345 engages with the frame 341. The telescopic tube 345 is threadedly engaged with the transmission rod 343. The depth limiting device 346 is fixedly connected to the bottom end face of the frame 341. The puncture needle 347 is installed on the bottom end face of the telescopic tube 345. The puncture needle 347 engages with the end face of the depth limiting device 346, which facilitates the servo motor 342 to drive the transmission rod 343 to rotate. This allows the transmission rod 343 to extend through the threaded engagement with the inner side of the telescopic tube 345, allowing the telescopic tube 345 to press against the puncture needle 347 to puncture the patient's kidney, thereby improving the accuracy of kidney puncture and increasing the success rate of puncture.

[0027] The depth limiting device 346 includes a support plate a1, an adjustment groove a2, a depth limiting block a3, and a fixing threaded block a4. The support plate a1 is fixedly connected to the bottom end face of the frame 341. The adjustment groove a2 is located on the end face of the support plate a1. The depth limiting block a3 is engaged with the end face of the adjustment groove a2, and the depth limiting block a3 is movably engaged with the end face of the puncture needle 347. The fixing threaded block a4 is threadedly engaged with the end face of the depth limiting block a3. The depth limiting block a3 is annular, which helps to limit the depth of the puncture needle 347 and avoid excessive damage to the kidney caused by the puncture needle 347.

[0028] The depth limiting block a3 includes a threaded rod a31, a depth limiting ring a32, a buffer ring a33, and a laser locator a34. The threaded rod a31 is engaged with the end face of the adjusting groove a2. The depth limiting ring a32 is fixedly connected to the end face of the threaded rod a31. The buffer ring a33 is located on the top end face of the depth limiting ring a32. The laser locator a34 is located on the bottom end face of the depth limiting ring a32. The buffer ring a33 is made of rubber, which helps to prevent excessive vibration caused by the collision of the puncture needle 347 and avoids excessive damage to the kidney caused by the puncture needle 347.

[0029] Based on the above embodiments, the specific working principle is as follows: When performing a kidney biopsy on a patient, the support device 1 can be placed on the patient's skin for fixation. The angle can then be adjusted left and right by swinging the adjustment frame 33. The puncture device 34 is then engaged inside the adjustment frame 33, allowing it to rotate back and forth. This enables the puncture device 34 to be finely adjusted 360 degrees, thereby adjusting the puncture device 34 to the optimal angle for kidney puncture and sampling. The support plate 2 then supports the puncture body 3, improving the efficiency of the procedure. The stability of the puncture needle 347 during puncture is ensured by adjusting the angle of the swing frame 341 and aiming at the kidney position using ultrasound. The patient is then instructed to hold their breath, and the start button on the control panel 344 is pressed. This causes the servo motor 342 to rotate the transmission rod 343, extending the threaded engagement between the transmission rod 343 and the inner side of the telescopic tube 345. The telescopic tube 345 then presses against the puncture needle 347 to puncture the patient's kidney. Finally, the reverse button on the control panel 344 is pressed, allowing the telescopic tube 345 to move the puncture needle 347. Pulling the needle upwards allows access to the glomeruli within the kidney, improving the accuracy and success rate of kidney biopsy. Then, the depth-limiting block a3 is positioned on the end face of the puncture needle 347, ensuring its vertical downward movement and preventing tilting during puncture. Since the depth of the kidney varies among patients, ultrasound can be used for measurement. The depth-limiting block a3 is moved along the end face of the adjustment groove a2, adjusting its position so that its end face can guide the puncture needle 347 downwards. The movable position is locked, which limits the depth of the puncture needle 347 and prevents it from causing excessive damage to the kidney. Finally, the depth-limiting ring a32 is used to lock the side end face of the puncture needle 347 to limit its position and improve the stability of the puncture needle 347 during puncture. Then, the buffer ring a33 contacts the end face of the puncture needle 347, so that the puncture needle 347 is cushioned when it is locked by the buffer ring a33, preventing excessive vibration caused by the collision of the puncture needle 347 and avoiding excessive damage to the kidney.

[0030] Example 2: Please refer to Figures 6-7 The specific embodiments of the present invention are as follows: The support device 1 includes a support frame 11, engaging blocks 12, suction cups 13, an inner groove 14, pressing blocks 15, sealing blocks 16, a return spring 17, and a vent 18. The top of the support frame 11 is fixedly connected to the support plate 2. Four engaging blocks 12 are provided and are respectively installed on the four side end faces of the support frame 11. The suction cups 13 are fixedly connected to the bottom end face of the engaging blocks 12. The inner groove 14 is located inside the engaging blocks 12, and the pressing blocks 15 engage with the inner groove 14. Inside the groove 14, the sealing block 16 is fixedly connected to the bottom end face of the pressing block 15, and the pressing block 15 is movably engaged with the end face of the suction cup 13. The reset spring 17 is installed on the end face of the inner groove 14. There are two vent holes 18, which are respectively located on the left and right end faces of the locking block 12. The reset spring 17 and the pressing block 15 are movably engaged, which helps the suction cup 13 to adhere to the skin for fixation and avoids displacement during kidney puncture.

[0031] The sealing block 16 includes a connecting rod 161, a guide block 162, and a rubber layer 163. The connecting rod 161 is fixedly connected to the bottom end face of the pressing block 15. The guide block 162 is disposed at the bottom of the connecting rod 161. The rubber layer 163 is nested on the outer end face of the guide block 162. The guide block 162 is made of plastic and has high elasticity, which helps the rubber layer 163 to fit tightly against the end face of the suction cup 13, allowing the suction cup 13 to maintain a vacuum state and adhere to the patient's skin for fixation, thereby improving the stability during puncture.

[0032] Based on the above embodiments, the specific working principle is as follows: By pressing the end face of the support frame 11, the suction cup 13 is brought into contact with the patient's skin, squeezing out the air inside the suction cup 13 and creating a vacuum between the suction cup 13 and the skin. This allows the suction cup 13 to adhere to the skin for fixation, preventing displacement during kidney puncture and improving the accuracy of the kidney puncture. After the kidney puncture is completed, the pressing block 15 can be pressed to disengage the sealing block 16 from the end face of the suction cup 13, allowing air to enter the interior of the suction cup 13 through the vent 18, causing the suction cup 13 to detach from the skin. The support frame 11 can then be removed. The guide block 162 supports the end face of the rubber layer 163, so that when the return spring 17 moves the pressing block 15 upward, the connecting rod 161 can also move the guide block 162 upward, allowing the rubber layer 163 to tightly adhere to the end face of the suction cup 13, maintaining a vacuum state to adhere to the patient's skin for fixation.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable puncture device for nephrology, comprising a support device (1), a support plate (2), and a puncture body (3), wherein the support device (1) is provided with a support plate (2) at its top, and there are four support plates (2) arranged on the four side faces of the top of the support device (1), and the puncture body (3) is fixedly connected to the top face of the support plate (2).

2. The adjustable puncture device for nephrology according to claim 1, characterized in that: The puncture body (3) includes a support block (31), a through groove (32), an adjustment frame (33), and a puncture device (34). The side end face of the support block (31) is fixedly connected to the top end face of the support plate (2). The through groove (32) is located in the middle of the inside of the support block (31). The adjustment frame (33) is engaged with the front and rear end faces of the through groove (32). The puncture device (34) passes through the inside of the adjustment frame (33).

3. The adjustable puncture device for nephrology according to claim 2, characterized in that: The puncture device (34) includes a frame (341), a servo motor (342), a transmission rod (343), a control panel (344), a telescopic tube (345), a depth limiting device (346), and a puncture syringe (347). The left and right end faces of the frame (341) engage with the inner end faces of the adjusting frame (33). The servo motor (342) is installed on the top end face of the frame (341), and the transmission rod (343) is located on the frame (341). The transmission rod (343) is engaged with the servo motor (342), the control panel (344) is located on the top end face of the frame (341), the telescopic tube (345) is engaged inside the frame (341), and the telescopic tube (345) is threadedly engaged with the transmission rod (343), the depth limiting device (346) is fixedly connected to the bottom end face of the frame (341), and the puncture needle (347) is installed on the bottom end face of the telescopic tube (345).

4. The adjustable puncture device for nephrology according to claim 3, characterized in that: The depth limiting device (346) includes a support plate (a1), an adjustment groove (a2), a depth limiting block (a3), and a fixing threaded block (a4). The support plate (a1) is fixedly connected to the bottom end face of the frame (341). The adjustment groove (a2) is located on the end face of the support plate (a1). The depth limiting block (a3) ​​is engaged with the end face of the adjustment groove (a2), and the depth limiting block (a3) ​​is movably engaged with the end face of the puncture needle (347). The fixing threaded block (a4) is threadedly engaged with the end face of the depth limiting block (a3).

5. The adjustable puncture device for nephrology according to claim 4, characterized in that: The depth limiting block (a3) ​​includes a threaded rod (a31), a depth limiting ring (a32), a buffer ring (a33), and a laser positioner (a34). The threaded rod (a31) is engaged with the end face of the adjusting groove (a2). The depth limiting ring (a32) is fixedly connected to the end face of the threaded rod (a31). The buffer ring (a33) is located on the top end face of the depth limiting ring (a32). The laser positioner (a34) is located on the bottom end face of the depth limiting ring (a32).

6. The adjustable puncture device for nephrology according to claim 1, characterized in that: The support device (1) includes a support frame (11), locking blocks (12), suction cups (13), an inner groove (14), a pressing block (15), a sealing block (16), a return spring (17), and a vent (18). The top of the support frame (11) is fixedly connected to the support plate (2). There are four locking blocks (12), and the locking blocks (12) are respectively installed on the four side end faces of the support frame (11). The suction cups (13) are fixedly connected to the bottom of the locking blocks (12). The inner groove (14) is located inside the locking block (12), the pressing block (15) is locked inside the inner groove (14), the sealing block (16) is fixedly connected to the bottom end face of the pressing block (15), and the pressing block (15) is movably engaged with the end face of the suction cup (13). The reset spring (17) is installed on the end face of the inner groove (14), and there are two vent holes (18), which are respectively located on the left and right end faces of the locking block (12).

7. The adjustable puncture device for nephrology according to claim 6, characterized in that: The sealing block (16) includes a connecting rod (161), a guide block (162), and a rubber layer (163). The connecting rod (161) is fixedly connected to the bottom end face of the pressing block (15). The guide block (162) is located at the bottom of the connecting rod (161). The rubber layer (163) is nested on the outer end face of the guide block (162).

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