Sampler capable of improving kidney puncture accuracy

Abstract

The invention provides a sampler capable of improving kidney puncture accuracy, and relates to the field of kidney puncture medical instruments. A sampler capable of improving kidney puncture accuracy comprises a middle cylinder, the outer side of the middle cylinder is fixedly connected with a side cylinder through a fixing block, and the top of the middle cylinder and the top of the side cylinder are fixedly connected with a fixing frame; an adjusting assembly is arranged in an inner cavity of the fixing frame, and a positioning assembly is arranged in an inner cavity of the side cylinder. A puncture assembly is arranged in an inner cavity of the middle cylinder. According to the sampler capable of improving the kidney puncture accuracy, through cooperation of the adjusting assembly, the positioning assembly, the puncture assembly and the injection assembly, a vacuum adsorption positioning mode is adopted, multi-point accurate puncture sampling is conducted on kidney focuses of a patient, frequent manual intervention is not needed, the phenomenon that the puncture position is misplaced and deviated due to poor positioning is avoided, and the accuracy of kidney puncture is improved. Meanwhile, the sampled sample tissue is subjected to pneumatic injection treatment, so that the sampling efficiency of the sample tissue is improved.

Description

Technical Field

[0001] This application relates to the field of renal biopsy medical device technology, and more specifically, to a sampler that can increase the accuracy of renal biopsy. Background Technology

[0002] Because there are many types of kidney diseases, and their causes and pathogenesis are complex, the clinical manifestations of many kidney diseases are not entirely consistent with the histological changes of the kidneys. In order to clarify the etiology and pathology of the disease and further confirm the specific disease of the patient, a kidney biopsy is required.

[0003] In the existing technology (patent application CN116898493B, patent name: a kidney puncture sampling device that can increase accuracy), frequent manual intervention and manipulation of the position and angle of the puncture needle are required, which is not worthwhile. In the existing technology (patent application CN210871743U, patent name: a kidney puncture biopsy sampling device) and (patent application CN209136686U, patent name: a kidney puncture biopsy sampling device), the positioning function is not available, which leads to misalignment and displacement of the puncture needle.

[0004] Before a kidney biopsy, a sampler is needed to biopsy the patient's kidney lesion. However, most of the samplers currently used are semi-mechanical puncture sampling devices that require frequent manual intervention, or needle-type puncture sampling aids. These devices have poor positioning effects, which can cause the puncture needle to be misaligned with the sampling point of the patient's kidney lesion, affecting the accuracy of the kidney biopsy. Summary of the Invention

[0005] This application aims to address at least the technical problems of existing technologies, such as the inability to use vacuum adsorption positioning for precise multi-point puncture sampling of kidney lesions, the need for frequent manual intervention, poor positioning accuracy, and susceptibility to misalignment. Therefore, this application proposes a sampler that can increase the accuracy of kidney puncture.

[0006] A sampler according to an embodiment of this application that can increase the accuracy of kidney puncture includes: a middle cylinder, a side cylinder fixedly connected to the outer side of the middle cylinder by a fixing block, and a fixing frame fixedly connected to the top of the middle cylinder and the side cylinder. The inner cavity of the fixed frame is provided with an adjustment component, and the inner cavity of the side cylinder is provided with a positioning component. The inner cavity of the middle cylinder is equipped with a puncture component.

[0007] Preferably, the adjustment assembly includes a dual-head motor, which is fixed to the top of the inner cavity of the middle cylinder. One output shaft of the dual-head motor is embedded with a first micro electric push rod. The piston rod of the first micro electric push rod is fixedly connected to a first snap-fit ​​connector. A drive spur gear is rotatably connected to the center of the inner cavity of the fixing frame. A first snap-fit ​​groove for cooperating with the first snap-fit ​​connector is opened at the center of the bottom of the drive spur gear. A driven spur gear that rotatably cooperates with the fixing frame is meshed on the outer side of the drive spur gear. A threaded rod that rotatably cooperates with the side cylinder is fixedly connected to the inner cavity of the driven spur gear. A threaded sleeve is threadedly connected to the outer wall of the threaded rod.

[0008] Preferably, the positioning component includes a first vertical groove, which is formed around the side cylinder. A first sliding frame that slides with the first vertical groove is fixedly connected to the outer wall of the threaded sleeve. A support arm that works with the side cylinder is fixedly connected to the bottom of the first sliding frame. A three-way valve is fixedly connected to the bottom of the support arm. A miniature vacuum pump is connected to the inner end of the three-way valve. A miniature pressure sensor is provided at the outer end of the three-way valve. A positioning suction cup that works with the middle cylinder is connected to the bottom end of the three-way valve. A first pressure relief pipe is connected to both sides of the top of the positioning suction cup. A first pressure relief valve is provided on the first pressure relief pipe.

[0009] Preferably, the puncture assembly includes a second vertical groove, which is formed around the middle cylinder. A second micro electric push rod is embedded in the other output shaft of the dual-head motor. The piston rod of the second micro electric push rod is fixedly connected to a second snap-fit ​​connector. A reciprocating screw is rotatably connected to the inner cavity of the middle cylinder. A second snap-fit ​​groove is formed at the top of the reciprocating screw to cooperate with the second snap-fit ​​connector. A screw sleeve is threaded to the outer wall of the reciprocating screw. A second sliding frame is fixedly connected to the outer wall of the screw sleeve to slide with the second vertical groove. A puncture needle and a miniature camera are respectively arranged on the outer side of the second sliding frame.

[0010] Preferably, both the driving sprocket and the driven sprocket have weight-reduction openings on both sides, and the driven sprocket and the threaded rod are distributed in a triangular equidistant manner along the central axis of the driving sprocket.

[0011] Preferably, the positioning suction cups are distributed in a triangular equidistant manner along the central axis of the middle cylinder, and the bottom end of the positioning suction cups is fixedly connected to a first sealing lip.

[0012] Preferably, the puncture needle and the miniature camera are arranged in a triangular staggered manner with the positioning suction cup, and the miniature camera is designed to be tilted towards the puncture needle.

[0013] Preferably, a handle is fixedly connected to the center of the top of the fixed frame, and anti-slip grooves are provided around the handle. A miniature alarm light is fixedly connected to the top of the fixed frame away from the side cylinder.

[0014] Preferably, the bottom of the middle cylinder is fixedly connected to a positioning seat for use with a positioning suction cup, and the positioning seat has a through hole for use with a puncture needle.

[0015] Preferably, a support plate is fixedly connected to the outer side of the middle cylinder near the positioning seat, and an auxiliary suction cup is fixedly connected to the other side of the support plate. Both sides of the auxiliary suction cup are connected to a second pressure relief pipe, and a second pressure relief valve is provided on the second pressure relief pipe.

[0016] The beneficial effects of this application are as follows: During the puncture and sampling of the patient's kidney lesion, a dual-head motor provides a unified drive source, saving on drive equipment costs and electricity consumption. A first micro electric push rod adjusts the clamping stroke between the first clamping connector and the first clamping groove. Then, the drive sprocket and three sets of driven sprockets engage in gear transmission. The three sets of driven sprockets drive the threaded sleeves on the three sets of threaded rods to rise and fall accordingly. Next, the three sets of threaded sleeves drive the support arm on the first sliding frame to rise and fall accordingly. Finally, three sets of three-way valves drive three sets of positioning suction cups to the skin surface of the patient's kidney puncture and sampling point. The three sets of three-way valves then... The miniature vacuum pump and miniature pressure sensor on the device perform vacuum decompression on the three sets of positioning suction cups. After negative pressure, the three sets of positioning suction cups achieve stable positioning of the middle and side cylinders. Then, the second miniature electric push rod first adjusts the clamping stroke between the second clamping connector and the second clamping groove. Then, the reciprocating screw drives the second sliding frame on the screw sleeve to reciprocate and rise and fall. With the assistance of three sets of miniature cameras for shooting and positioning, the second sliding frame drives the three puncture needles to perform multi-point insertion and withdrawal two to three times in the patient's kidney lesion. This improves the accuracy of kidney lesion puncture and sampling while ensuring sufficient sample from the patient's kidney lesion.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a sampler that can increase the accuracy of kidney puncture according to an embodiment of this application; Figure 2 This is a three-dimensional front view of a sampler that can increase the accuracy of kidney puncture according to an embodiment of this application; Figure 3This is a three-dimensional side view of a sampler that can increase the accuracy of kidney puncture according to an embodiment of this application; Figure 4 This is a three-dimensional structural cross-sectional view of a sampler that can increase the accuracy of kidney puncture according to an embodiment of this application; Figure 5 This is a three-dimensional internal view of a sampler that can increase the accuracy of kidney puncture according to an embodiment of this application; Figure 6 This is a bottom view of a three-dimensional structure of a sampler that can increase the accuracy of kidney puncture according to an embodiment of this application; Figure 7 This is a front view of the structure of the adjustment component and the positioning component according to an embodiment of this application; Figure 8 This is a bottom view of the structure of the adjustment component and the positioning component according to an embodiment of this application; Figure 9 This is a bottom view of the adjustment component structure according to an embodiment of this application; Figure 10 This is a partial side view of the positioning component structure according to an embodiment of this application; Figure 11 This is a front view of the adjustment component and puncture component structure according to an embodiment of this application; Figure 12 This is a bottom view of the adjustment component and puncture component structure according to an embodiment of this application; Figure 13 This is a partial top view of the puncture assembly structure according to an embodiment of this application; Figure 14 This is a side view of the injection component structure according to an embodiment of this application; Figure 15 This is a partially exploded view of the injection component structure according to an embodiment of this application; Figure 16 This is a cross-sectional view of the puncture needle structure according to an embodiment of this application; Figure 17 This is a partial rear view of a three-dimensional structure of a sampler that can increase the accuracy of kidney puncture according to an embodiment of this application; Figure 18 This is a reference diagram of a kidney puncture marker according to an embodiment of this application, which can increase the accuracy of kidney puncture.

[0020] Icons: 1. Middle cylinder; 2. Side cylinder; 3. Fixing frame; 4. Adjustment assembly; 41. Dual-head motor; 42. First miniature electric push rod; 43. First locking connector; 44. Drive spur gear; 45. First locking slot; 46. Driven spur gear; 47. Threaded rod; 48. Threaded sleeve; 5. Positioning assembly; 51. First vertical groove; 52. First sliding frame; 53. Support arm; 54. Three-way valve; 55. Miniature vacuum pump; 56. Miniature pressure sensor; 57. Positioning suction cup; 58. First pressure relief device. 6. Tube; 61. Puncture assembly; 62. Second vertical groove; 63. Second miniature electric push rod; 64. Second locking connector; 65. Reciprocating screw; 66. Second locking groove; 67. Screw sleeve; 68. Second sliding frame; 69. Puncture needle; 70. Miniature camera; 71. Injection assembly; 72. Tightening seat; 73. Tightening head; 74. Step groove; 75. Balloon; 76. Inhalation tube; 77. Exhaust tube; 8. Telescopic tube; 9. Handle; 10. Positioning seat; 11. Auxiliary suction cup; 12. Second pressure relief tube. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] like Figures 1-18 As shown, a sampler that can increase the accuracy of kidney puncture according to an embodiment of this application includes: a middle cylinder 1, a side cylinder 2 fixedly connected to the outer side of the middle cylinder 1 by a fixing block, and a fixing frame 3 fixedly connected to the top of the middle cylinder 1 and the side cylinder 2. A handle 8 is fixedly connected to the center of the top of the fixed frame 3, which makes it easy for the testing personnel to grip the handle 8 and move the middle cylinder 1 and the side cylinder 2 through the fixed frame 3. Anti-slip grooves are provided around the handle 8. A miniature alarm light is fixedly connected to the top of the fixed frame 3 away from the side cylinder 2 to warn of the device's operating status. A support plate is fixedly connected to the outer side of the bottom of the middle cylinder 1, and an auxiliary suction cup 10 is fixedly connected to the other side of the support plate to pre-adsorb and position the skin surface of the patient's kidney puncture sampling point. Both sides of the auxiliary suction cup 10 are connected to a second pressure relief pipe 11, and a second pressure relief valve is provided on the second pressure relief pipe 11 to facilitate the pressure release and detachment of the auxiliary suction cup 10. The inner cavity of the fixation frame 3 is equipped with an adjustment component 4 that works in conjunction with the middle cylinder 1 and the side cylinder 2, and the inner cavity of the side cylinder 2 is equipped with a positioning component 5, which performs three-point adsorption on the skin surface of the patient's kidney puncture sampling point to improve its positioning stability. The inner cavity of the middle tube 1 is equipped with a puncture component 6 that works in conjunction with the positioning component 5 to perform single-point or multi-point precise puncture sampling on the patient's kidney lesions to prevent deviation.

[0029] like Figures 7 to 13 As shown, the adjustment assembly 4 includes a dual-head motor 41, which is fixed to the top of the inner cavity of the middle cylinder 1. The dual-head motor 41 provides a unified drive source, saving the cost of the drive equipment and electricity consumption. A first micro electric push rod 42 is embedded in one output shaft of the dual-head motor 41. The piston rod of the first micro electric push rod 42 is fixedly connected to a first snap-fit ​​connector 43. A drive spur gear 44 is rotatably connected to the center of the inner cavity of the fixing frame 3. A first snap-fit ​​groove 45 is opened at the center of the bottom of the drive spur gear 44 to cooperate with the first snap-fit ​​connector 43. The first miniature electric push rod 42 adjusts the snapping stroke between the first snap-fit ​​connector 43 and the first snap-fit ​​groove 45. The outer side of the drive sprocket 44 is meshed with a driven sprocket 46 that rotates with the fixed frame 3. The drive sprocket 44 and the three sets of driven sprockets 46 are geared together. The inner cavity of the driven sprocket 46 is fixedly connected to a threaded rod 47 that rotates with the side cylinder 2. The surface of the threaded rod 47 is threaded with a threaded sleeve 48. The three sets of driven sprockets 46 drive the threaded sleeves 48 on the three sets of threaded rods 47 to move up and down accordingly. Both the driving spur gear 44 and the driven spur gear 46 have weight-reducing openings on both sides to reduce their weight. Furthermore, the driven spur gear 46 and the threaded rod 47 are distributed in a triangular equidistant manner along the central axis of the driving spur gear 44, making the distribution of the driven spur gear 46 and the threaded rod 47 reasonable.

[0030] The positioning component 5 includes a first vertical groove 51, which is formed around the side cylinder 2. A first sliding frame 52, which slides in cooperation with the first vertical groove 51, is fixedly connected to the outer wall of the threaded sleeve 48. A support arm 53, which cooperates with the side cylinder 2, is fixedly connected to the bottom of the first sliding frame 52. The support arm 53 on the first sliding frame 52 is raised and lowered by three sets of threaded sleeves 48. A three-way valve 54 is fixedly connected to the bottom of the support arm 53. A miniature vacuum pump 55 is connected to the inner end of the three-way valve 54. A miniature pressure transmitter is provided at the outer end of the three-way valve 54. Sensor 56, and the bottom end of the three-way valve 54 is connected to a positioning suction cup 57 that works with the middle cylinder 1. The three sets of three-way valves 54 drive the three sets of positioning suction cups 57 to the skin surface of the patient's kidney puncture sampling point. The top two sides of the positioning suction cup 57 are connected to the first pressure relief pipe 58, and the first pressure relief pipe 58 is equipped with a first pressure relief valve. The miniature vacuum pump 55 and miniature pressure sensor 56 on the three sets of three-way valves 54 perform vacuum pressure reduction on the three sets of positioning suction cups 57. After negative pressure, the three sets of positioning suction cups 57 achieve a stable positioning effect for the middle cylinder 1 and the side cylinder 2. The positioning suction cups 57 are distributed in a triangular equidistant manner along the central axis of the middle cylinder 1. Based on the principle of stability of triangles, the three sets of triangularly equidistant positioning suction cups 57 are used to stably adsorb the skin at the location of the patient's kidney lesion. The bottom end of the positioning suction cup 57 is fixedly connected to the first sealing lip, which expands the adsorption area of ​​the positioning suction cup 57 and improves the adsorption stability of the positioning suction cup 57.

[0031] The puncture assembly 6 includes a second vertical groove 61, which is formed around the middle cylinder 1. A second miniature electric push rod 62 is embedded in the other output shaft of the dual-head motor 41. The piston rod of the second miniature electric push rod 62 is fixedly connected to a second snap-fit ​​connector 63. A reciprocating screw 64 is rotatably connected to the inner cavity of the middle cylinder 1. The top of the reciprocating screw 64 has a second snap-fit ​​groove 65 that mates with the second snap-fit ​​connector 63. The second miniature electric push rod 62 adjusts the snap-fit ​​stroke between the second snap-fit ​​connector 63 and the second snap-fit ​​groove 65. The surface of the reciprocating screw 64 is threaded with a threaded wire. The outer wall of the rod sleeve 66 is fixedly connected to a second sliding frame 67 that slides with the second vertical groove 61. The reciprocating screw 64 drives the second sliding frame 67 on the rod sleeve 66 to reciprocate and move up and down. The outer side of the second sliding frame 67 is respectively equipped with a puncture needle 68 and a miniature camera 69. With the assistance of the three sets of miniature cameras 69, the second sliding frame 67 drives the three puncture needles 68 to perform multi-point insertion and withdrawal two to three times in the patient's kidney lesion. This improves the accuracy of puncture and sampling of the patient's kidney lesion and ensures that the sample from the patient's kidney lesion is sufficient. The puncture needle 68 and the miniature camera 69 are arranged in a triangular staggered manner with the positioning suction cup 57. The miniature camera 69 is tilted towards the puncture needle 68 to capture and position the reciprocating insertion and removal motion of the puncture needle 68, thereby improving the puncture and sampling accuracy of the puncture needle 68. The bottom of the middle cylinder 1 is fixedly connected to a positioning seat 9 that works with the positioning suction cup 57, which facilitates the positioning seat 9 to be pre-positioned. The positioning seat 9 is provided with a through hole that works with the puncture needle 68, which allows the puncture needle 68 to pass through the positioning seat 9 and perform reciprocating insertion and removal work on the patient's kidney lesion.

[0032] like Figures 14 to 16 As shown, after the patient's kidney lesion is punctured and sampled, it is usually necessary to use other instruments to remove the sampled tissue, which is too troublesome. When the sample is sent for testing, it is also easy for side leakage to occur, affecting the integrity of the sample. The middle cylinder 1 and the side cylinder 2 are provided with a push injection component 7 on the opposite side. The push injection component 7 includes a tightening seat 71. The tightening seat 71 is embedded in the second sliding frame 67 on the side near the puncture needle 68. The top of the puncture needle 68 is connected to a tightening head 72 that is threaded with the tightening seat 71, which facilitates the quick assembly and disassembly of the puncture needle 68. At the same time, one or more puncture needles 68 can meet the single-point or multi-point puncture sampling needs of the patient's kidney lesion. The inner lumen of the puncture needle 68 is provided with a stepped groove 73, which facilitates the entry of the patient's kidney lesion sample tissue into the puncture needle 68 during the reciprocating insertion and withdrawal of the puncture needle 68, and prevents the sample tissue from falling out during the insertion and withdrawal of the puncture needle 68. Furthermore, a balloon 74 is fixedly connected to one side of the fixed frame 3 facing each other. Compression areas are provided on both sides of the balloon 74. The top of the balloon 74 is connected to an air inlet tube 75, which is equipped with an air inlet valve. The bottom of the balloon 74 is connected to an exhaust tube 76, which is equipped with an exhaust valve. The bottom of the exhaust tube 76 is connected to a telescopic tube 77 that works with the tightening seat 71. The balloon 74 provides the air supply, and the sampled tissue in the stepped groove 73 of the puncture needle 68 is pushed out through the exhaust tube 76, telescopic tube 77, tightening seat 71 and tightening head 72 in sequence, achieving a rapid injection effect of sample tissue, which is convenient and quick.

[0033] Specifically, the working principle of this sampler that can increase the accuracy of kidney puncture is as follows: First, grip the handle 8 and place the middle cylinder 1 and three sets of side cylinders 2 horizontally towards the sampling point of the patient's kidney lesion through the fixing frame 3. Then, attach the positioning seat 9 on the middle cylinder 1 and the three sets of auxiliary suction cups 10 to the pre-marked sampling point of the patient's kidney lesion. Press the three sets of auxiliary suction cups 10 inward and firmly attach them to the skin around the sampling point of the patient's kidney lesion. After the middle cylinder 1 and the three sets of side cylinders 2 are pre-positioned, first control the first micro electric push rod 42 to open and drive the first locking connector 43 to move forward and lock into the first locking groove 45 on the drive gear 44. Then control the double-head motor 41 to open and drive the drive gear 44 to rotate through the first locking connector 43 which is integrated with the first locking groove 45. The drive gear 44 drives the threaded rods 47 on the three sets of driven gears 46 to rotate in the forward direction. The three sets of threaded rods 47 drive the three sets of threaded sleeves 48 to move forward accordingly. While the three sets of threaded sleeves 48 drive the first sliding frame 52 to slide forward in the first vertical groove 51, they also drive the support arm 53 to move towards the skin around the sampling point of the patient's kidney lesion. Until the support arm 53 drives the three sets of positioning suction cups 57 to be tightly attached to the skin around the sampling point of the kidney lesion through the three sets of three-way valves 54. Then, the three sets of micro vacuum pumps 55 are turned on and vacuum is drawn into the three sets of positioning suction cups 57 through the three sets of three-way valves 54. At the same time, the three sets of micro pressure sensors 56 monitor the negative pressure in the three sets of positioning suction cups 57 in real time to prevent the negative pressure of the three sets of positioning suction cups 57 from being too large and causing damage to the skin around the sampling point of the patient's kidney lesion. Until the three sets of positioning suction cups 57 are steadily attached to the skin surface around the sampling point of the patient's kidney lesion using negative pressure suction. After the middle cylinder 1 and the three sets of side cylinders 2 are adsorbed and positioned by the three sets of auxiliary suction cups 10 and three sets of positioning suction cups 57 arranged in a triangular pattern, the handle 8 is still in a manual gripping state. First, control the dual-head motor 41 to pause, and control the first micro electric push rod 42 to close and drive the first locking connector 43 to move backward and disengage from the first locking groove 45 on the drive spur gear 44 to the initial position. Then, control the second micro electric push rod 62 to open and drive the second locking connector 63 to move forward and lock into the second locking groove 65 on the reciprocating screw 64. After that, control the dual-head motor 41 to open again and drive the second locking connector 63, which is integrated with the second locking groove 65, to lock into the second locking groove 65. The locking connector 63 drives the reciprocating screw 64 to rotate. At this time, the first locking connector 43 on the first micro electric push rod 42 is in an idle state. The reciprocating screw 64 drives the screw sleeve 66 to move back and forth. The screw sleeve 66 drives the second sliding frame 67 to move back and forth on the second vertical groove 61. With the shooting and positioning of the three sets of micro cameras 69, the second sliding frame 67 drives the three puncture needles 68 to first insert into the patient's kidney lesion at multiple points, and then pull them out in a reciprocating motion. In this way, the three puncture needles 68 are inserted and withdrawn into the patient's kidney lesion two or three times in succession, so that the sample tissue of the patient's kidney lesion can be obtained. When the puncture needle 68 is inserted to sample the patient's renal lesion, a single puncture needle 68 or multiple puncture needles 68 can be selected depending on the sampling location of the patient's renal lesion. If a single puncture needle 68 is selected, the tightening head 72 on the remaining puncture needle 68 is unscrewed from the tightening seat 71. Similarly, single-point puncture sampling is performed according to the actual sampling location of the patient's renal lesion. The sample tissue obtained by the puncture needle 68 in the patient's renal lesion is retained in the step groove 73. After the puncture needle 68 has completed sampling the patient's renal lesion, the dual-head motor 41 is first turned off, and then the second motor is turned off. After the miniature electric push rod 62 is closed and drives the second locking connector 63 to move backward and disengage from the second locking groove 65 on the reciprocating screw 64 to the initial position, the first pressure relief valve on the three sets of first pressure relief pipes 58 and the second pressure relief valve on the second pressure relief pipe 11 are opened to release the negative pressure in the three sets of positioning suction cups 57 and the three sets of auxiliary suction cups 10. After the pressure is released, the three sets of positioning suction cups 57 and the three sets of auxiliary suction cups 10 are detached from the skin around the sampling point of the patient's kidney lesion. The three puncture needles 68 that have completed the sampling on the middle cylinder 1 and the three sets of side cylinders 2 are moved to the pre-prepared glass slide position by the handle 8. The balloon 74 is then squeezed through the compression zone. When the balloon 74 is in the reset inhalation state, the inhalation valve on the inhalation tube 75 is opened and the exhaust valve on the exhaust tube 76 is closed. Then, outside air is drawn into the balloon 74 through the inhalation tube 75. When the balloon 74 is in the compression exhaust state, the air drawn into the balloon 74 is supplied into the puncture needle 68 after sampling through the exhaust tube 76, the telescopic tube 77, the tightening seat 71 and the tightening head 72. Under the action of air impact force, the sample tissue accumulated in the step groove 73 is forced to be pushed from the puncture needle 68 onto the glass slide. In this way, the remaining sample tissue in the puncture needle 68 is pushed onto the glass slide. Then, the sample tissue on the glass slide is smeared, fixed, marked and sent for testing in sequence.

[0034] It should be noted that the specific models and specifications of the dual-head motor 41, the first micro electric push rod 42, the micro vacuum pump 55, the micro pressure sensor 56, the second micro electric push rod 62, and the micro camera 69 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0035] The power supply and operating principles of the dual-head motor 41, the first miniature electric actuator 42, the miniature vacuum pump 55, the miniature pressure sensor 56, the second miniature electric actuator 62, and the miniature camera 69 are clear to those skilled in the art and will not be described in detail here.

[0036] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sampler that can increase the accuracy of kidney biopsy, characterized in that, include: The middle cylinder (1) has a side cylinder (2) fixedly connected to its outer side by a fixing block, and a fixing frame (3) is fixedly connected to the top of the middle cylinder (1) and the side cylinder (2). The inner cavity of the fixed frame (3) is provided with an adjustment component (4), and the inner cavity of the side cylinder (2) is provided with a positioning component (5). The inner cavity of the middle cylinder (1) is provided with a puncture assembly (6).

2. The sampler according to claim 1, which can increase the accuracy of kidney puncture, is characterized in that, The adjustment assembly (4) includes a dual-head motor (41), which is fixed to the top of the inner cavity of the middle cylinder (1). One output shaft of the dual-head motor (41) is embedded with a first micro electric push rod (42). The piston rod of the first micro electric push rod (42) is fixedly connected to a first snap-fit ​​connector (43). A drive spur gear (44) is rotatably connected to the center of the inner cavity of the fixing frame (3). A first snap-fit ​​groove (45) that cooperates with the first snap-fit ​​connector (43) is opened at the center of the bottom of the drive spur gear (44). A driven spur gear (46) that rotatably cooperates with the fixing frame (3) is meshed on the outer side of the drive spur gear (44). A threaded rod (47) that rotatably cooperates with the side cylinder (2) is fixedly connected to the inner cavity of the driven spur gear (46). A threaded sleeve (48) is threadedly connected to the surface wall of the threaded rod (47).

3. A sampler according to claim 2 that can increase the accuracy of kidney puncture, characterized in that, The positioning component (5) includes a first vertical groove (51), which is opened around the side cylinder (2). The outer wall of the threaded sleeve (48) is fixedly connected to a first sliding frame (52) that slides with the first vertical groove (51). The bottom of the first sliding frame (52) is fixedly connected to a support arm (53) that works with the side cylinder (2). The bottom of the support arm (53) is fixedly connected to a three-way valve (54). The inner end of the three-way valve (54) is connected to a miniature vacuum pump (55). The outer end of the three-way valve (54) is provided with a miniature pressure sensor (56). The bottom end of the three-way valve (54) is connected to a positioning suction cup (57) that works with the middle cylinder (1). The top two sides of the positioning suction cup (57) are connected to a first pressure relief pipe (58), and a first pressure relief valve is provided on the first pressure relief pipe (58).

4. A sampler according to claim 3 that can increase the accuracy of kidney puncture, characterized in that, The puncture assembly (6) includes a second vertical groove (61) which is opened around the middle cylinder (1). The other output shaft of the dual-head motor (41) is fitted with a second micro electric push rod (62). The piston rod of the second micro electric push rod (62) is fixedly connected to a second snap connector (63). The inner cavity of the middle cylinder (1) is rotatably connected to a reciprocating screw (64). The top of the reciprocating screw (64) is provided with a second snap groove (65) that cooperates with the second snap connector (63). The surface wall of the reciprocating screw (64) is threadedly connected to a screw sleeve (66). The outer wall of the screw sleeve (66) is fixedly connected to a second sliding frame (67) that slides with the second vertical groove (61). The outer side of the second sliding frame (67) is respectively provided with a puncture needle (68) and a micro camera (69).

5. A sampler according to claim 4 that can increase the accuracy of kidney puncture, characterized in that, Both the driving spur gear (44) and the driven spur gear (46) have weight-reducing openings on both sides, and the driven spur gear (46) and the threaded rod (47) are distributed in a triangular equidistant state along the central axis of the driving spur gear (44).

6. A sampler according to claim 5 that can increase the accuracy of kidney puncture, characterized in that, The positioning suction cups (57) are distributed in a triangular equidistant manner along the central axis of the middle cylinder (1), and the bottom end of the positioning suction cups (57) is fixedly connected to a first sealing lip.

7. A sampler according to claim 6 that can increase the accuracy of kidney puncture, characterized in that, The puncture needle (68) and the miniature camera (69) are arranged in a triangular staggered manner with the positioning suction cup (57), and the miniature camera (69) is tilted towards the puncture needle (68).

8. A sampler according to claim 7 that can increase the accuracy of kidney puncture, characterized in that, A handle (8) is fixedly connected to the center of the top of the fixed frame (3), and anti-slip grooves are provided around the handle (8). A miniature alarm light is fixedly connected to the top of the fixed frame (3) away from the side cylinder (2).

9. A sampler according to claim 8 that can increase the accuracy of kidney puncture, characterized in that, The bottom of the middle cylinder (1) is fixedly connected to a positioning seat (9) that works with the positioning suction cup (57), and the positioning seat (9) has a through hole that works with the puncture needle (68).

10. A sampler according to claim 9 that can increase the accuracy of kidney puncture, characterized in that, The middle cylinder (1) is fixedly connected to a support plate on the outer side near the positioning seat (9), and an auxiliary suction cup (10) is fixedly connected to the other side of the support plate. Both sides of the auxiliary suction cup (10) are connected to a second pressure relief pipe (11), and a second pressure relief valve is provided on the second pressure relief pipe (11).

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