Kidney biopsy puncture sampling device

Abstract

The invention belongs to the technical field of medical instruments, and discloses a kidney biopsy puncture sampling device which comprises a base assembly, a puncture assembly and a limiting assembly, the puncture assembly is installed above the base assembly in a penetrating mode, and the limiting assembly is installed on the outer wall of the puncture assembly and comprises a limiter installed on the outer wall of the puncture assembly; a first pipe is installed on the outer wall of the limiter in a penetrating mode, a first branch pipe is installed on the outer wall of the first pipe, a second branch pipe is installed on the outer wall of the first pipe, a breathing mask is installed at one end of the first pipe, ear hooks are installed on the outer wall of the breathing mask, and a second pipe is installed on the outer wall of the breathing mask. By arranging the breathing mask and the trigger, puncture can be carried out when a patient is closed, the puncture precision is improved, when the patient breathes in a closed state or breathing is gentle, no gas flows in the first pipe when the patient breathes in a closed state, and therefore the limiting rod cannot block the limiting plate, and medical staff can operate the device to carry out puncture; a cannula is inserted into a patient.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a kidney biopsy puncture sampling device. Background Art

[0002] Kidney disease is a common and frequently occurring disease. If it worsens, it can develop into uremia, which seriously endangers people's health. Chronic kidney disease has become another important disease that threatens human health after cardiovascular and cerebrovascular diseases, tumors, and diabetes. With the changes in eating habits and lifestyles, people's kidney burden has gradually increased, leading to a continuous increase in the incidence of kidney disease. In order to accurately diagnose kidney disease, pathological examination of kidney tissue is required. Therefore, accurate diagnosis of kidney disease is crucial, and kidney biopsy puncture sampling is the only method for pathological diagnosis of kidney disease. Traditional kidney biopsy puncture sampling devices have some obvious limitations, such as inaccurate puncture positioning, low sampling quality, and complex operation. These problems not only affect the accuracy of diagnosis, but may also cause great pain to patients. Therefore, it has become an urgent need to develop a new kidney biopsy puncture sampling device to solve the limitations of existing technologies.

[0003] During renal puncture, since it is an invasive examination, the patient will feel pain and the patient's breathing will be violent. When the human body breathes, the position of the kidney will change. Due to the violent breathing, the position of the kidney will change greatly, resulting in inaccurate puncture position and inability to perform puncture sampling at the designated position. Under normal circumstances, the kidneys are located on both sides of the spine and have a good support structure with the surrounding tissues, so their position is relatively stable. However, during violent breathing, the volume of the abdominal cavity will change, which may cause the kidneys to move slightly up or down, but this movement is a normal physiological phenomenon. However, during renal puncture, the puncture position must be accurate, so during the operation, the patient is generally required to temporarily stop breathing. The breath-holding time usually takes 10 to 20 seconds to facilitate the puncture, but the patient's breathing is often uncontrollable, resulting in changes in the puncture position, resulting in errors in the puncture position, affecting the sampling results. Summary of the invention

[0004] In view of the deficiencies of the prior art, the object of the present invention is to provide a kidney biopsy puncture sampling device, which solves the problem in the prior art that the position of the kidney changes due to the patient's violent breathing.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A kidney biopsy puncture sampling device, comprising a base component, a puncture component and a limit component;

[0006] A puncture assembly is installed through the top of the base assembly, and a limit assembly is installed on the outer wall of the puncture assembly;

[0007] The limiting assembly includes a limiter installed on the outer wall of the puncture assembly, a No. 1 tube is installed through the outer wall of the limiter, a first branch tube is installed on the outer wall of the No. 1 tube, a second branch tube is installed on the outer wall of the No. 1 tube, a breathing mask is installed on one end of the No. 1 tube, an ear hook is installed on the outer wall of the breathing mask, a No. 2 tube is installed on the outer wall of the breathing mask, two fixed shells are installed on the outer wall of the breathing mask, and the No. 1 tube and the No. 2 tube are both connected to the outer wall of the fixed shell.

[0008] In some disclosures, the base assembly includes a base plate, a protective pad is installed at the bottom of the base plate, a No. 1 hole is opened at the top of the base plate, a plurality of support rods are installed at the top of the base plate, a No. 2 plate is installed at the top of the support rods, and a No. 2 hole is opened at the top of the No. 2 plate.

[0009] In some disclosures, an arc-shaped flexible wrapping plate is installed on the outer wall of the protection pad, a plurality of detection columns are installed through the outer wall of the flexible wrapping plate, a first protrusion is installed on the outer wall of the detection column, a card plate is installed on the inner top wall of the flexible wrapping plate, a second protrusion is installed on the outer wall of the card plate, a support spring is installed on the inner bottom wall of the flexible wrapping plate, an L-shaped trigger rod is installed on the outer wall of the detection column, and a plurality of trigger switches are installed on the bottom of the flexible wrapping plate.

[0010] In some disclosures, the puncture assembly is installed through the interior of the second plate, and the puncture assembly includes a cannula, a fixture is installed on the top of the cannula, an L-shaped limit groove is opened on the outer wall of the fixture, a manual rod is installed through the outer wall of the limit groove, a bearing is installed at one end of the manual rod located inside the fixture, the bottom of the bearing is connected to the top of the cannula, an electric push rod is installed on the inner top wall of the fixture, the bottom of the electric push rod is connected to the outer wall of the manual rod, and the electric push rod is electrically connected to the trigger switch through a wire.

[0011] In some disclosures, a sampling tube is installed on the inner top wall of the cannula, and a sampling cavity is installed on the outer wall of the sampling tube.

[0012] In some disclosures, a trigger is installed on the inner wall of the limiter, a sealing plate is slidably installed on the inner wall of the trigger, a limiting rod is installed on the outer wall of the sealing plate, one end of the limiting rod extends out of the outer wall of the trigger, a first spring is installed around the outer wall of the limiting rod, and one end of the first spring is fixedly connected to the inner wall of the trigger, and a blocking plate is installed on the outer wall of the tube.

[0013] In some disclosures, a clamp is installed on the top of the base plate, a fixed cavity is provided on the inner wall of the clamp, a connecting hole is opened on the top of the fixed cavity, and the connecting hole is fixedly connected to the No. 2 tube, an electronic barometer is installed on the outer wall of the fixed cavity, an electric telescopic rod is installed on the outer wall of the fixed cavity, and the electric telescopic rod is electrically connected to the electronic barometer through a wire, a moving rod is installed at one end of the electric telescopic rod, a second spring is installed around the outer wall of the moving rod, one end of the second spring is fixedly connected to the inner wall of the clamp, an arc-shaped clamping plate is installed at one end of the moving rod, and the clamping plate is located outside the clamp.

[0014] In some disclosures, a detector is installed on the inner wall of the limiter, and the detector is connected to the second branch pipe. A fixed shaft is installed on the inner wall of the detector, and fan blades are installed around the outer wall of the fixed shaft. A first induction coil is installed on the inner wall of the fan blade, and first magnets are installed on the outer walls of both sides of the detector.

[0015] In some disclosures, a reminder is installed on the top of the second plate, a fixed wire is installed on the inner wall of the reminder, and the fixed wire is fixedly connected to the first induction coil through the wire, two resistors with different resistance values ​​are installed on the outer wall of the fixed wire, a conductive plate is installed on the inner top wall of the reminder, the conductive plate is electrically connected to the fixed wire through the wire, a protective cover is installed on the top of the reminder, a reminder light is installed on the inner bottom wall of the protective cover, and the reminder light is electrically connected to the conductive plate through the wire.

[0016] In some disclosures, an air outlet is installed on the inner wall of the fixed shell, the air outlet is connected with the No. 1 pipe and the No. 2 pipe, a rotating rod is installed through the outer wall of the air outlet, a rotating blade is installed on the outer wall of the rotating rod, a second induction coil is installed on the outer wall of the rotating rod, a magnet plate is installed on the outer wall of the air outlet, a plurality of air inlet holes are installed on the outer wall of the fixed shell, a vertical plate is installed on the inner bottom wall of the fixed shell, an auxiliary rod is installed through the outer wall of the vertical plate, a third spring is installed around the outer wall of the auxiliary rod, an electromagnet is installed on one end of the auxiliary rod, and the electromagnet is electrically connected to the second induction coil through a wire.

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

[0018] A fixed connection is one where the parts or components are fixed without any relative movement;

[0019] A rotational connection is a connection between parts that allows the parts to rotate relative to each other;

[0020] Threaded connection is a detachable fixed connection with the advantages of simple structure, reliable connection, and convenient assembly and disassembly. It is widely used in the fields of mechanical engineering and connection structures.

[0021] A sliding connection is a connection between parts that allows the parts to slide against each other.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention can perform puncture when the patient is holding his breath by providing a breathing mask and a trigger, thereby improving the accuracy of puncture. When the patient is holding his breath or breathing slowly, there is no gas flow in the No. 1 tube, so that the limit rod will not block the limit plate, so that medical staff can operate the device to perform puncture and insert the cannula into the patient's body.

[0024] 2. The present invention can effectively prevent medical staff from performing puncture when the patient is not ready by setting a limiter, fix the cannula in hole No. 1 to prevent the cannula from falling, thereby preventing the patient from performing puncture when breathing violently, and effectively preventing medical staff from accidentally touching the cannula, so that the puncture accuracy can be improved, and medical staff can perform puncture when the patient is ready.

[0025] 3. The present invention can facilitate medical staff to check the patient's condition by setting a prompter. Since the exhalation intensity will change from strong to weak during breathing, the gas will drive the fan blades to rotate from fast to slow, and the generated induced current will change from large to small. Therefore, when the current is large, the current passes through the two resistors in turn, causing the prompt light at the edge of the prompter to light up, and then the current gradually decreases, and the other two prompt lights light up in turn. Therefore, medical staff can judge the patient's condition during puncture according to the on and off of the prompt light and the speed of on and off, thereby ensuring the safety of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of the structure of a fixer part of an embodiment of the present invention;

[0029] Figure 3 is a partial structural schematic diagram of a stopper according to an embodiment of the present invention;

[0030] Figure 4 is a schematic diagram of the structure of a clamping device according to an embodiment of the present invention;

[0031] Figure 5 is a schematic diagram of the cross-sectional structure of a clamper according to an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of the structure of a detector part of an embodiment of the present invention;

[0033] Figure 7 is a schematic diagram of the structure of a prompter part of an embodiment of the present invention;

[0034] Figure 8 is a partial structural schematic diagram of a flexible wrapping plate according to an embodiment of the present invention;

[0035] Fig. 9 It is a schematic diagram of the cross-sectional structure of the fixed shell according to an embodiment of the present invention.

[0036] In the figure: 1. Base assembly; 10. Bottom plate; 11. Protective pad; 12. Hole No. 1; 13. Support rod; 14. Plate No. 2; 15. Flexible wrapping plate; 16. Detection column; 17. Bump No. 1; 18. Card plate; 19. Bump No. 2; 110. Support spring; 111. Trigger rod; 112. Trigger switch; 2. Puncture assembly; 20. Cannula; 21. Fixer; 22. Limiting groove; 23. Manual lever; 24. Bearing; 25. Sampling chamber; 26. Sampling tube; 27. Electric push rod; 3. Limit assembly; 30. Limiter; 31. Tube No. 1; 32. First branch tube; 33. Second branch tube; 34. Respiratory mask; 35. Ear hook; 36. Tube No. 2; 4. Trigger; 4 1. Sealing plate; 42. Limit rod; 43. First spring; 44. Blocking plate; 5. Clamp; 51. Fixed cavity; 52. Connecting hole; 53. Electronic barometer; 54. Electric telescopic rod; 55. Moving rod; 56. Second spring; 57. Clamping plate; 6. Detector; 61. Fixed shaft; 62. Fan blade; 63. First magnet; 7. Prompt; 71. Fixed wire; 72. Resistor; 73. Conductive plate; 74. Protective cover; 75. Prompt light; 8. Fixed shell; 81. Air outlet; 82. Rotating rod; 83. Rotating blade; 84. Second induction coil; 85. Magnet plate; 86. Air inlet; 87. Vertical plate; 88. Auxiliary rod; 89. Third spring; 810. Electromagnet. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figure 1 and Figure 3A kidney biopsy puncture sampling device comprises a base assembly 1, a puncture assembly 2 and a limit assembly 3, wherein the puncture assembly 2 is installed on the top of the base assembly 1, and the limit assembly 3 is installed on the outer wall of the puncture assembly 2, wherein the limit assembly 3 comprises a limiter 30 installed on the outer wall of the puncture assembly 2, wherein a No. 1 tube 31 is installed on the outer wall of the limiter 30, wherein a first branch tube 32 is installed on the outer wall of the No. 1 tube 31, wherein a second branch tube 33 is installed on the outer wall of the No. 1 tube 31, and a breathing surface is installed at one end of the No. 1 tube 31 The outer wall of the breathing mask 34 is installed with an ear hook 35, the outer wall of the breathing mask 34 is installed with a No. 2 tube 36, the inner wall of the limiter 30 is installed with a trigger 4, the inner wall of the trigger 4 is slidably installed with a sealing plate 41, the outer wall of the sealing plate 41 is installed with a limiting rod 42, one end of the limiting rod 42 extends out of the outer wall of the trigger 4, the outer wall of the limiting rod 42 is surrounded by a first spring 43, and one end of the first spring 43 is fixedly connected to the inner wall of the trigger 4, and the outer wall of the cannula 20 is installed with a blocking plate 44.

[0039] Specifically, when using the device, the patient first puts on the breathing mask 34 so that the patient can breathe inside the breathing mask 34. When the patient breathes rapidly and violently due to puncture, the gas exhaled by the patient enters the trigger 4 through the No. 1 tube 31 and the first branch tube 32. At this time, due to the limited space inside the trigger 4, the gas entering will cause the air pressure inside the trigger 4 to increase. The increase in air pressure causes the sealing plate 41 to move, and the sealing plate 41 drives the limiting rod 42 to extend out of the trigger 4. At the same time, the first spring 43 contracts, so that the limiting rod 42 blocks the blocking plate 44, thereby enabling the patient to fix the cannula 20 when breathing rapidly and violently, thereby preventing puncture when the patient breathes violently.

[0040] It should be noted that when the patient's physical condition allows him to hold his breath for a long time, when the patient is in breath holding, there is no gas flow in the No. 1 tube 31 during breath holding, so that the limit rod 42 will not block the limit plate 44, so that the medical staff can operate the device for puncture and insert the cannula 20 into the patient's body;

[0041] It should be noted that after the cannula 20 is punctured, the sampling position has been determined and the patient can breathe. When the patient breathes slowly, the gas in the first tube 31 will flow out through the first branch tube 32 and the second branch tube 33. At this time, due to the patient's slow breathing, the air pressure in the trigger 4 is insufficient, and the trigger 4 will not be triggered, and the gas will slowly flow out through the second branch tube 33.

[0042] It should be noted that when the patient breathes violently, the aperture of the first branch tube 32 is larger than that of the second branch tube 33. According to the principle of fluid mechanics, a large aperture has a smaller gas resistance, so that the gas exhaled by the patient quickly enters the first branch tube 32. Due to the small aperture of the second branch tube 33, most of the gas exhaled by the patient enters the first branch tube 32, and a small part enters the second branch tube 33. In addition, since there is a trigger 4 at one end of the first branch tube 32, the gas will flow to the second branch tube 33 after filling the trigger 4. Due to the small aperture of the second branch tube 33, the amount of gas discharged from the second branch tube 33 is less than the amount of gas exhaled by the patient, so that the gas accumulates inside the trigger 4, thereby increasing the air pressure and triggering the trigger 4. When the breathing is smooth, the gas exhaled by the patient is stable and slow. At this time, the amount of gas discharged from the second branch tube 33 is greater than or equal to the amount of gas exhaled by the patient. After the gas fills the trigger 4, it flows out from the second branch tube 33, so that the trigger 4 will not be triggered.

[0043] It should be noted that the above operation can greatly improve the accuracy of puncture when medical staff perform puncture. By adjusting according to the patient's breathing, the accuracy of puncture can be greatly improved, and puncture can be prevented when the position of the kidney changes due to the patient's breathing.

[0044] See also Figure 8 The outer wall of the protection pad 11 is installed with an arc-shaped flexible wrapping plate 15, and a plurality of detection columns 16 are installed through the outer wall of the flexible wrapping plate 15. A first protrusion 17 is installed on the outer wall of the detection column 16. A card plate 18 is installed on the inner top wall of the flexible wrapping plate 15, and a second protrusion 19 is installed on the outer wall of the card plate 18. A supporting spring 110 is installed on the inner bottom wall of the flexible wrapping plate 15, an L-shaped trigger rod 111 is installed on the outer wall of the detection column 16, and a plurality of trigger switches 112 are installed on the bottom of the flexible wrapping plate 15.

[0045] Specifically, the patient's chest and abdomen are wrapped with a flexible wrapping plate 15, and Velcro is used at the connection of the flexible wrapping plate 15 to facilitate adaptation to people of different body shapes. When the patient breathes normally, the moving range of the detection column 16 is above the second protrusion 19. When the patient coughs, the patient inhales first and then exhales. During this process, the abdominal cavity expands dramatically, squeezing the detection column 16. The detection column 16 moves downward, and the first protrusion 17 passes over the second protrusion 19. At this time, the detection column 16 squeezes the support spring 110, and the trigger rod 111 descends and contacts the trigger switch 112. At this time, the trigger switch 112 controls the electric push rod 27 to stop working, so that puncture cannot be performed when the position of the kidney changes due to the patient's cough, thereby improving the puncture accuracy.

[0046] See also Figure 1 Figure 2The base assembly 1 includes a bottom plate 10, a protective pad 11 is installed at the bottom of the bottom plate 10, a No. 1 hole 12 is opened at the top of the bottom plate 10, a plurality of support rods 13 are installed at the top of the bottom plate 10, a No. 2 plate 14 is installed at the top of the support rods 13, a No. 2 hole is opened at the top of the No. 2 plate 14, the puncture assembly 2 is installed through the inside of the No. 2 plate 14, the puncture assembly 2 includes a cannula 20, a fixer 21 is installed at the top of the cannula 20, and an L-shaped limiting groove 22 is opened on the outer wall of the fixer 21 A manual rod 23 is installed through the outer wall of the limit groove 22, and a bearing 24 is installed at one end of the manual rod 23 located inside the fixture 21, and the bottom of the bearing 24 is connected to the top of the cannula 20, and a sampling tube 26 is installed on the inner top wall of the cannula 20, and a sampling cavity 25 is installed on the outer wall of the sampling tube 26, and an electric push rod 27 is installed on the inner top wall of the fixture 21, and the bottom of the electric push rod 27 is connected to the outer wall of the manual rod 23, and the electric push rod 27 is electrically connected to the trigger switch 112 through a wire.

[0047] Specifically, the protective pad 11 is brought into contact with the patient's skin so that the device stands upright on the patient's body surface. When in use, align it with the puncture position and press the fixer 21 to allow the fixer 21 to enter the patient's body. Then, the cannula 20 is inserted into the patient's kidney position. Then, the manual lever 23 is pressed down to allow the sampling tube 26 to penetrate the patient's kidney. Then, the manual lever 23 is rotated to fix the sampling tube 26. At this time, the sampling tube 26 extends into the patient's kidney, and the kidney tissue enters the sampling cavity 25 to realize the sampling function. After the sampling is completed, the manual lever 23 is lifted to complete the sampling.

[0048] See also Figure 1 , Figure 4 and Figure 5 A clamp 5 is installed on the top of the base plate 10, and a fixed cavity 51 is provided on the inner wall of the clamp 5. A connecting hole 52 is opened on the top of the fixed cavity 51, and the connecting hole 52 is fixedly connected to the No. 2 tube 36. An electronic barometer 53 is installed on the outer wall of the fixed cavity 51. An electric telescopic rod 54 is installed on the outer wall of the fixed cavity 51, and the electric telescopic rod 54 is electrically connected to the electronic barometer 53 through a wire. A moving rod 55 is installed at one end of the electric telescopic rod 54, and a second spring 56 is installed around the outer wall of the moving rod 55, and one end of the second spring 56 is fixedly connected to the inner wall of the clamp 5, and an arc-shaped clamping plate 57 is installed at one end of the moving rod 55, and the clamping plate 57 is located outside the clamp 5.

[0049] Specifically, when performing the first puncture, the accuracy of the puncture needs to be ensured. At this time, the patient wears a breathing mask 34. When the patient cannot hold his breath due to intense breathing due to tension or external stimulation, the gas exhaled by the patient enters the fixed cavity 51 through the No. 2 tube 36, and the air pressure in the fixed cavity 51 increases. At this time, the electronic barometer 53 detects the change in air pressure in the fixed cavity 51. The electronic barometer 53 controls the extension of the electric telescopic rod 54, driving the moving rod 55 and the clamping plate 57 to contact the cannula 20, fixing the cannula 20 in the No. 1 hole 12 to prevent the cannula 20 from falling, thereby preventing the patient from being punctured when breathing violently, and effectively preventing medical staff from accidentally touching it, so that the puncture accuracy can be improved, and medical staff can perform puncture when the patient is ready.

[0050] See also Figure 1 , Figure 3 , Figure 6 and Figure 7 A detector 6 is installed on the inner wall of the limiter 30, and the detector 6 is connected to the second branch pipe 33. A fixed shaft 61 is installed on the inner wall of the detector 6. A fan blade 62 is installed around the outer wall of the fixed shaft 61, and an induction coil is installed on the inner wall of the fan blade 62. Magnets 63 are installed on the outer walls of both sides of the detector 6. A prompter 7 is installed on the top of the second plate 14. A fixed wire 71 is installed on the inner wall of the prompter 7, and the fixed wire 71 is fixedly connected to the induction coil through a wire. Two resistors 72 with different resistance values ​​are installed on the outer wall of the fixed wire 71. A conductive plate 73 is installed on the inner top wall of the prompter 7. The conductive plate 73 is electrically connected to the fixed wire 71 through a wire. A protective cover 74 is installed on the top of the prompter 7. A prompt light 75 is installed on the inner bottom wall of the protective cover 74. The prompt light 75 is electrically connected to the conductive plate 73 through a wire.

[0051] Specifically, after the first puncture punctures the cannula 20, the puncture position has been determined and the patient does not need to hold his breath. The patient can breathe and keep his breathing steady. The exhaled gas slowly flows out through the second branch tube 33, and the gas drives the fan blades 62 to rotate. At this time, the induction coil cuts the magnetic flux lines generated by the magnet 63 to generate an induced current, which enters the fixed wire 71. Since the exhalation intensity will change from strong to weak during breathing, the gas will drive the fan blades 62 to rotate from fast to slow, and the generated induced current will change from large to small. When the current is large, the current passes through the two resistors 72 in turn, causing the indicator light 75 at the edge of the indicator 7 to light up, and then the current gradually decreases, and the other two indicator lights 75 light up in turn, so that medical staff can judge the patient's puncture status according to the on and off of the indicator light 75 and the speed of on and off, so as to ensure the safety of the patient.

[0052] See also Fig. 9An air outlet 81 is installed on the inner wall of the fixed shell 8, and the air outlet 81 is connected with the No. 1 pipe 31 and the No. 2 pipe 36. A rotating rod 82 is installed through the outer wall of the air outlet 81, and a rotating vane 83 is installed on the outer wall of the rotating rod 82. A second induction coil 84 is installed on the outer wall of the rotating rod 82. A magnet plate 85 is installed on the outer wall of the air outlet 81. A plurality of air inlet holes 86 are installed on the outer wall of the fixed shell 8. A vertical plate 87 is installed on the inner bottom wall of the fixed shell 8. An auxiliary rod 88 is installed through the outer wall of the vertical plate 87. A third spring 89 is installed around the outer wall of the auxiliary rod 88. An electromagnet 810 is installed at one end of the auxiliary rod 88, and the electromagnet 810 is electrically connected to the second induction coil 84 through a wire.

[0053] Specifically, when the patient cannot hold his breath for a long time, the patient can wear a breathing mask 34, inhale through the air inlet 86 when inhaling, and the air inlet 86 adopts a one-way channel. When exhaling, the gas is exhaled through the air outlet 81. After the preparations are made, when preparing for puncture, the patient breathes normally. Within 0.5-1 second after the end of exhalation, the chest movement is basically completed, and the diaphragm is in a relatively static state. At this time, the change range of the position of the abdominal organs will be reduced relative to the exhalation process. It is most appropriate to perform puncture at this time. At this time, the patient can perform puncture while breathing again, and the puncture accuracy is high;

[0054] It should be noted that when the patient exhales, the gas drives the rotor blade 83 to rotate, and the rotor blade 83 drives the second induction coil 84 to rotate between the magnet plates 85. At this time, the electromagnet 810 is energized. After the two electromagnets 810 are energized, the directions of the magnetic fields are set to opposite directions, so that the two same magnetic poles of the electromagnet 810 are opposite to each other. Before the electromagnet 810 is energized, the third spring 89 drives the electromagnet 810 to be in a close contact state. The electromagnet 810 is energized when the patient exhales, so that the same poles of the electromagnet 810 repel each other and are in a separated state. Therefore, within 0.5-1 second after the patient finishes exhaling, the electromagnet 810 is in a power-off state, and the electromagnet 810 is closed, so that the electric push rod 27 is quickly extended, and then the sampling tube 26 is inserted into the patient's body, thereby improving the accuracy of puncture.

[0055] Working principle: the protective pad 11 is in contact with the patient's skin so that the device stands upright on the patient's body surface. When in use, align it with the puncture position, press the fixer 21 at this time, so that the fixer 21 enters the patient's body, and then the cannula 20 is inserted into the patient's kidney position, and then the manual lever 23 is pressed down to make the sampling tube 26 pierce the patient's kidney. When using this device, the patient first wears a breathing mask 34 so that the patient can breathe inside the breathing mask 34. When the patient breathes rapidly and violently due to the puncture, the patient's exhaled gas passes through the No. 1 tube 31 and the first branch tube 32 into the trigger 4. At this time, since the space inside the trigger 4 is The gas entering the trigger 4 will increase the air pressure inside the trigger 4. The increase in air pressure will cause the sealing plate 41 to move. The sealing plate 41 will drive the limiting rod 42 to extend out of the trigger 4. At the same time, the first spring 43 will contract, so that the limiting rod 42 will block the blocking plate 44, so that when the patient is breathing rapidly and violently, the cannula 20 can be fixed to prevent puncture when the patient is breathing violently. When performing the first puncture, the accuracy of the puncture needs to be ensured. At this time, the patient wears a breathing mask 34. When the patient is breathing violently due to tension or external stimulation and cannot hold his breath, the gas exhaled by the patient enters the fixed cavity 51 through the second tube 36. The fixed cavity 51 The air pressure in the fixed cavity 51 increases. At this time, the electronic barometer 53 detects the air pressure change in the fixed cavity 51. The electronic barometer 53 controls the electric telescopic rod 54 to extend, driving the moving rod 55 and the clamping plate 57 to contact the cannula 20, fixing the cannula 20 in the No. 1 hole 12 to prevent the cannula 20 from falling, thereby preventing the patient from being punctured when breathing violently, and effectively preventing the medical staff from accidentally touching the cannula, so that the puncture accuracy can be improved, and the medical staff can puncture when the patient is ready. Finally, after the first puncture punctures the cannula 20, the puncture position has been determined, and the patient does not need to hold his breath. At this time, the patient can breathe, and the patient's breathing remains smooth. The exhaled gas passes through the first puncture. Gas flows out slowly from the two branches 33, and the fan blades 62 are driven to rotate by the gas. At this time, the induction coil cuts the magnetic flux lines generated by the magnet 63 to generate an induced current, which enters the fixed wire 71. Since the exhalation intensity changes from strong to weak during breathing, the fan blades 62 are driven by the gas to rotate from fast to slow, and the generated induced current changes from large to small. Therefore, when the current is large, the current passes through the two resistors 72 in turn, causing the indicator light 75 at the edge of the indicator 7 to light up, and then the current gradually decreases, and the other two indicator lights 75 light up in turn, so that medical staff can judge the patient's puncture status according to the on and off of the indicator light 75 and the speed of on and off, so as to ensure the safety of the patient.

[0056] 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.

[0057] 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 kidney biopsy puncture sampling device, characterized in that: It comprises a base component (1), a puncture component (2) and a limit component (3); A puncture assembly (2) is installed through the top of the base assembly (1), and a limit assembly (3) is installed on the outer wall of the puncture assembly (2); The limit assembly (3) comprises a limiter (30) installed on the outer wall of the puncture assembly (2); a first tube (31) is installed through the outer wall of the limiter (30); a first branch tube (32) is installed on the outer wall of the first tube (31); a second branch tube (33) is installed on the outer wall of the first tube (31); a breathing mask (34) is installed at one end of the first tube (31); an ear hook (35) is installed on the outer wall of the breathing mask (34); a second tube (36) is installed on the outer wall of the breathing mask (34); two fixed shells (8) are installed on the outer wall of the breathing mask (34); and the first tube (31) and the second tube (36) are both connected to the outer wall of the fixed shell (8).

2. A kidney biopsy puncture sampling device according to claim 1, characterized in that: The base assembly (1) comprises a base plate (10), a protective pad (11) is installed at the bottom of the base plate (10), a first hole (12) is provided at the top of the base plate (10), a plurality of support rods (13) are installed at the top of the base plate (10), a second plate (14) is installed at the top of the support rods (13), and a second hole is provided at the top of the second plate (14).

3. A kidney biopsy puncture sampling device according to claim 2, characterized in that: The outer wall of the protection pad (11) is installed with an arc-shaped flexible wrapping plate (15), a plurality of detection columns (16) are installed through the outer wall of the flexible wrapping plate (15), a first protrusion (17) is installed on the outer wall of the detection column (16), a card plate (18) is installed on the inner top wall of the flexible wrapping plate (15), a second protrusion (19) is installed on the outer wall of the card plate (18), a supporting spring (110) is installed on the inner bottom wall of the flexible wrapping plate (15), an L-shaped trigger rod (111) is installed on the outer wall of the detection column (16), and a plurality of trigger switches (112) are installed on the bottom of the flexible wrapping plate (15).

4. A kidney biopsy puncture sampling device according to claim 1, characterized in that: The puncture assembly (2) is installed through the inside of the second plate (14), and the puncture assembly (2) includes a cannula (20). A fixer (21) is installed on the top of the cannula (20). An L-shaped limit groove (22) is provided on the outer wall of the fixer (21). A manual rod (23) is installed through the outer wall of the limit groove (22). A bearing (24) is installed at one end of the manual rod (23) located inside the fixer (21). The bottom of the bearing (24) is connected to the top of the cannula (20). An electric push rod (27) is installed on the inner top wall of the fixer (21). The bottom of the electric push rod (27) is connected to the outer wall of the manual rod (23), and the electric push rod (27) is electrically connected to the trigger switch (112) through a wire.

5. A kidney biopsy puncture sampling device according to claim 4, characterized in that: A sampling tube (26) is installed on the inner top wall of the cannula (20), and a sampling cavity (25) is installed on the outer wall of the sampling tube (26).

6. A kidney biopsy puncture sampling device according to claim 1, characterized in that: The inner wall of the limiter (30) is provided with a trigger (4), the inner wall of the trigger (4) is slidably provided with a sealing plate (41), the outer wall of the sealing plate (41) is provided with a limit rod (42), one end of the limit rod (42) extends out of the outer wall of the trigger (4), a first spring (43) is provided around the outer wall of the limit rod (42), and one end of the first spring (43) is fixedly connected to the inner wall of the trigger (4), and a blocking plate (44) is provided on the outer wall of the cannula (20).

7. A kidney biopsy puncture sampling device according to claim 2, characterized in that: A clamp (5) is installed on the top of the base plate (10), and a fixed cavity (51) is provided on the inner wall of the clamp (5). A connecting hole (52) is opened on the top of the fixed cavity (51), and the connecting hole (52) is fixedly connected to the No. 2 tube (36). An electronic barometer (53) is installed on the outer wall of the fixed cavity (51), and an electric telescopic rod (54) is installed on the outer wall of the fixed cavity (51), and the electric telescopic rod (54) and the electronic barometer (53) are electrically connected through a wire. A moving rod (55) is installed at one end of the electric telescopic rod (54), and a second spring (56) is installed around the outer wall of the moving rod (55), and one end of the second spring (56) is fixedly connected to the inner wall of the clamp (5), and an arc-shaped clamping plate (57) is installed at one end of the moving rod (55), and the clamping plate (57) is located outside the clamp (5).

8. A kidney biopsy puncture sampling device according to claim 1, characterized in that: A detector (6) is installed on the inner wall of the limiter (30), and the detector (6) is connected to the second branch pipe (33). A fixed shaft (61) is installed on the inner wall of the detector (6), a fan blade (62) is installed around the outer wall of the fixed shaft (61), and a first induction coil is installed on the inner wall of the fan blade (62). First magnets (63) are installed on both sides of the outer wall of the detector (6).

9. A kidney biopsy puncture sampling device according to claim 2, characterized in that: The second plate (14) is provided with a reminder (7) on the top, a fixed wire (71) is provided on the inner wall of the reminder (7), and the fixed wire (71) is fixedly connected to the first induction coil through a wire, and two resistors (72) with different resistance values ​​are provided on the outer wall of the fixed wire (71), a conductive plate (73) is provided on the inner top wall of the reminder (7), and the conductive plate (73) is electrically connected to the fixed wire (71) through a wire, a protective cover (74) is provided on the top of the reminder (7), and a reminder light (75) is provided on the inner bottom wall of the protective cover (74), and the reminder light (75) is electrically connected to the conductive plate (73) through a wire.

10. A kidney biopsy puncture sampling device according to claim 2, characterized in that: The inner wall of the fixed shell (8) is provided with an air outlet (81), the air outlet (81) is connected with the first tube (31) and the second tube (36), the outer wall of the air outlet (81) is penetrated by a rotating rod (82), the outer wall of the rotating rod (82) is provided with a rotating vane (83), the outer wall of the rotating rod (82) is provided with a second induction coil (84), the outer wall of the air outlet (81) is provided with a magnet plate (85), the outer wall of the fixed shell (8) is provided with a plurality of air inlet holes (86), the inner bottom wall of the fixed shell (8) is provided with a vertical plate (87), the outer wall of the vertical plate (87) is penetrated by an auxiliary rod (88), the outer wall of the auxiliary rod (88) is surrounded by a third spring (89), one end of the auxiliary rod (88) is provided with an electromagnet (810), and the electromagnet (810) is electrically connected to the second induction coil (84) through a wire.

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