A device for measuring the alignment and eccentricity of a puncture needle axis with a handle

Abstract

This invention relates to the field of eccentricity measurement technology, specifically to a puncture needle axis alignment eccentricity measuring device with a handle. It solves the problems of eccentricity measurement relying heavily on manual visual inspection with specialized instruments, resulting in low detection efficiency. Furthermore, the instruments are difficult to adapt to different models and sizes of puncture needles, requiring frequent fixture changes, and the measurement benchmark is difficult to establish accurately, leading to measurement errors. The device includes a base assembly with a rotating component at its top, and a linkage component at the top of each rotating component. A lifting detection mechanism is located inside the linkage component, and a benchmark positioning mechanism is located at the top of the inner side of the lifting detection mechanism. The invention utilizes the output end of a hydraulic cylinder to push up a movable ring, which in turn drives an adjusting rod to rise. This adjusting rod then synchronously raises the benchmark platform, allowing the device to accommodate puncture needles of different lengths.

Description

Technical Field

[0001] This invention relates to the field of eccentricity detection technology, specifically to a device for measuring the eccentricity of a puncture needle axis alignment with a handle. Background Technology

[0002] A puncture needle is a medical device used in minimally invasive surgery to sample and inject tissues from various organs, including the kidneys, liver, lungs, breasts, thyroid gland, prostate, pancreas, testes, uterus, ovaries, and body surface.

[0003] During the production of puncture needles, it is usually necessary to measure the alignment and eccentricity of their axis. The alignment (eccentricity) between the needle tube axis and the theoretical axis of the handle is a key indicator for measuring the quality of puncture needles. Excessive eccentricity will cause the puncture path to deviate from the expected path, increase surgical risks, and affect the surgical outcome.

[0004] Existing methods for measuring eccentricity rely heavily on manual visual inspection combined with specialized instruments, resulting in low inspection efficiency. Furthermore, the instruments are difficult to adapt to different models and sizes of puncture needles, requiring frequent fixture changes. Additionally, it is difficult to establish a precise measurement benchmark, leading to errors in the measurement results. Therefore, these methods do not meet the current requirements. To address this, we propose a puncture needle axis alignment eccentricity measuring device with a handle. Summary of the Invention

[0005] The purpose of this invention is to provide a puncture needle axis alignment eccentricity measuring device with a handle, in order to solve the problems mentioned in the background art, such as the eccentricity measurement relying on manual visual inspection in conjunction with special instruments, resulting in low detection efficiency, difficulty in adapting the detection instruments to different models and sizes of puncture needles, the need for frequent clamp changes, and difficulty in accurately establishing the measurement benchmark, which leads to errors in the measurement results.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a puncture needle axis alignment and eccentricity measuring device with a handle, comprising a base assembly, a rotating assembly, and a linkage assembly. The rotating assembly is located at the top of the base assembly, the linkage assembly is located at the top of the rotating assembly, a lifting detection mechanism is provided on the inner side of the linkage assembly, a reference positioning mechanism is provided at the top of the inner side of the lifting detection mechanism, a handle is provided at the top of the rotating assembly, and a puncture needle is detachably mounted on the top of the handle.

[0007] The lifting and detection mechanism includes a lifting platform, an adjusting rod, a snap-fit ​​plate, a limiting plate, a lead screw motor, a lead screw, a guide column, a laser emitter, a connecting ring, a laser detector, and a lead screw movable sleeve. The lifting platform is movably installed on the outside of the reference positioning mechanism. An adjusting rod is installed at the bottom of the lifting platform. A lead screw is rotatably installed inside one of the adjusting rods, and a guide column is installed inside the other adjusting rod. A lead screw movable sleeve is movably installed on the outer surface of the lead screw. A connecting ring is installed at the outer end of the lead screw movable sleeve. A laser emitter is installed on the outer surface of the connecting ring. A laser detector is installed on the outer surface of the laser emitter. The angle between the laser detector and the laser emitter is 180°. The laser detector is movably connected to the surface of the guide column.

[0008] Preferably, the lifting and detection mechanism further includes a snap-fit ​​plate, a limit plate, and a lead screw motor. The lead screw motor is located at the top of the lifting platform near the lead screw. The output end of the lead screw motor is connected to the top of the lead screw via a coupling. A snap-fit ​​plate is installed on the outer surface of the adjusting rod, and a limit plate is installed at the bottom end of the adjusting rod. The laser emission port of the laser emitter is opposite to the laser detection port of the laser detector.

[0009] Preferably, the rotating assembly includes a rotating gear, a hinge frame, a hinge rod, a clamping column, and a placement platform. The rotating gear is rotatably mounted on the top surface of the base assembly. Hinges are mounted on both sides of the top of the rotating gear. Hinges are hinged to both sides of the hinge frame. A clamping column is mounted on the inner side of the hinge rod. A placement platform is mounted at the center of the top of the rotating gear. A torsion spring is movably mounted between the hinge rod and the interior of the hinge frame.

[0010] Preferably, the rotating assembly further includes a movable groove, a guide rod, a clamping plate, a compression spring, a lifting waist hole, and a handle bracket. The top of the placement platform is provided with a movable groove, and a guide rod is installed inside the movable groove. Clamping plates are slidably installed on both sides inside the movable groove. A compression spring is movably installed between the clamping plate and the inside of the movable groove. One end of the compression spring is connected to the clamping plate, and the other end of the compression spring is connected to the inner wall of the movable groove. The surface of the clamping plate is provided with a lifting waist hole, and a handle bracket is slidably installed inside the lifting waist hole.

[0011] Preferably, the linkage assembly includes a gear ring, a snap-fit ​​groove, an upper driven gear, a rotating shaft, and a lower driven gear. The gear ring is movably mounted on the outside of the adjusting rod. The upper driven gear is meshed with the outer surface of the gear ring. The rotating shaft is mounted at the bottom end of the upper driven gear, and the lower driven gear is mounted at the bottom end of the rotating shaft.

[0012] Preferably, the reference positioning mechanism includes a reference platform, connecting rods, reference insert rods, and a reference groove. Four connecting rods are installed on the outer surface of the reference platform, and the connecting rods are fixedly connected to the lifting platform. The bottom end of the reference platform is provided with a reference groove, and a reference insert rod is detachably installed inside the reference groove.

[0013] Preferably, the reference positioning mechanism further includes a spring groove, a movable block, a compression spring, and a clamping flexible pad. The inner wall surface of the reference groove is provided with four spring grooves. The movable block is slidably installed inside the spring groove. The clamping flexible pad is detachably installed on the outer surface of the movable block. A compression spring is movably installed between the movable block and the inside of the spring groove. One end of the compression spring is connected to the movable block, and the other end of the compression spring is connected to the inner wall of the spring groove.

[0014] Preferably, the base assembly includes a base, support columns, a servo motor, a base plate, a fixed rod, a fixed ring, a movable ring, and a hydraulic cylinder. Four support columns are installed on the outer ring of the bottom end of the base, and a servo motor is located at the center of the bottom end of the base. Four base plates are installed on the top surface of the base, and each pair of opposite base plates forms a base plate group. A hydraulic cylinder is installed on the top of the two base plates in one base plate group. A movable ring is fixedly connected to the output end of the hydraulic cylinder. The movable ring is movably installed on the bottom surface of the adjusting rod. The top surface of the movable ring has a movable ring groove, and the bottom end of the adjusting rod is movably engaged in the movable ring groove. A fixed rod is installed on the top of one base plate in another base plate group, and a fixed ring is movably installed on the bottom surface of the gear ring. One side of the fixed ring is fixedly connected to the fixed rod, and the other side of the fixed ring is rotatably connected to the rotating shaft. The lower driven gear is rotatably installed on the top surface of the other base plate in the other base plate group.

[0015] Preferably, the clamping post is movably inserted into the groove on the surface of the handle, the output end of the servo motor is connected to the bottom shaft of the rotating gear through a coupling, the rotating gear is meshed with the lower driven gear, the bottom surface of the handle is in contact with the surface of the handle bracket, the snap-fit ​​plate is movably inserted into the snap-fit ​​groove, and the clamping plate is in contact with the surface of the handle.

[0016] Preferably, the surface of the clamping flexible pad is in contact with the surface of the puncture needle, and the reference insert is movably inserted into the interior of the puncture needle.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The present invention, through the cooperation of hydraulic cylinder and snap-fit ​​plate, allows the device to be pushed out through the output end of hydraulic cylinder during use, thereby driving the movable ring to rise, and then driving the adjusting rod to rise through the movable ring. At this time, the adjusting rod will drive the reference platform to rise synchronously, so that the device can be adapted to install puncture needles of different lengths.

[0019] 2. The present invention, through the cooperation of the movable block and the compression spring, allows the movable block to pop out when the device is in use, thereby clamping the puncture needle through the clamping flexible pad. This allows the device to clamp and install puncture needles of different sizes, while the clamping flexible pad prevents the puncture needle from being deformed or damaged due to force clamping.

[0020] 3. The present invention, through the cooperation of the reference platform and the reference rod, enables the device to establish a fixed reference axis by inserting the puncture needle into the reference groove and the reference rod into the puncture needle during use. This avoids the situation where the reference line is different due to different angles of the handle and the puncture needle during the test, which would lead to errors in the measurement results. Attached Figure Description

[0021] The disclosure of this invention will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. Furthermore, similar numbers in the drawings are used to denote similar components, wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a partial structural diagram of the entire invention;

[0024] Figure 3 This is a cross-sectional side view of the entire invention;

[0025] Figure 4 This is a cross-sectional front view of the entire invention;

[0026] Figure 5 For the present invention Figure 1 A partial structural diagram of part A in the middle;

[0027] Figure 6 For the present invention Figure 2 A partial structural diagram of part B;

[0028] Figure 7 For the present invention Figure 2 A schematic diagram of the partial structure of part C.

[0029] In the diagram: 1. Base assembly; 101. Base; 102. Support column; 103. Servo motor; 104. Base plate; 105. Fixed rod; 106. Fixed ring; 107. Movable ring; 108. Hydraulic cylinder; 2. Rotating assembly; 201. Rotating gear; 202. Hinge frame; 203. Hinge rod; 204. Clamping column; 205. Placement platform; 206. Movable slot; 207. Guide rod; 208. Clamping plate; 209. Compression spring; 210. Lifting waist hole; 211. Handle bracket; 3. Linkage assembly; 301. Gear ring; 302. Snap-fit ​​groove; 303. Upper driven gear; 304. Rotating... 4. Shaft; 305. Lower driven gear; 4. Lifting and detection mechanism; 401. Lifting platform; 402. Adjusting rod; 403. Snap-fit ​​plate; 404. Limiting plate; 405. Lead screw motor; 406. Lead screw; 407. Guide column; 408. Laser emitter; 409. Connecting ring; 410. Laser detector; 411. Lead screw movable sleeve; 5. Reference positioning mechanism; 501. Reference platform; 502. Connecting rod; 503. Reference insertion rod; 504. Reference groove; 505. Spring groove; 506. Movable block; 507. Compression spring; 508. Clamping flexible pad; 6. Handle; 7. Puncture needle; 8. Control end. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] 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.

[0033] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the workpiece of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device 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 the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly 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 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 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.

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] Please see Figures 1 to 7 An embodiment of the present invention provides: a puncture needle axis alignment and eccentricity measuring device with a handle includes a base assembly 1, a rotating assembly 2 at the top of the base assembly 1, a linkage assembly 3 at the top of the rotating assembly 2, a lifting detection mechanism 4 on the inner side of the linkage assembly 3, a reference positioning mechanism 5 at the top of the inner side of the lifting detection mechanism 4, a handle 6 on the top surface of the rotating assembly 2, and a puncture needle 7 detachably mounted on the top surface of the handle 6.

[0038] The lifting detection mechanism 4 includes a lifting platform 401, an adjusting rod 402, a snap-fit ​​plate 403, a limiting plate 404, a lead screw motor 405, a lead screw 406, a guide column 407, a laser emitter 408, a connecting ring 409, a laser detector 410, and a lead screw movable sleeve 411. The lifting platform 401 is movably installed on the outside of the reference positioning mechanism 5. An adjusting rod 402 is installed at the bottom of the lifting platform 401. A lead screw 406 is rotatably installed inside one adjusting rod 402, and a guide column 407 is installed inside the other adjusting rod 402. A lead screw movable sleeve 411 is movably installed on the outer surface of the lead screw 406. A connecting ring 409 is installed at the outer end of the lead screw movable sleeve 411. A laser emitter 408 is installed on the outer surface of the connecting ring 409. A laser detector 410 is installed on the outer surface of the laser emitter 408. The included angle between the laser detector 410 and the laser emitter 408 is 180°. The laser detector 410 is movably connected to the surface of the guide column 407. The laser emitter 408 and the laser detector 410 are electrically connected to the uniform control terminal 8. For example, the control terminal 8 can be located on the base 101.

[0039] The lifting and detection mechanism 4 also includes a snap-fit ​​plate 403, a limit plate 404, and a lead screw motor 405. The lead screw motor 405 is located at the top of the lifting platform 401 near the lead screw 406. The output end of the lead screw motor 405 is connected to the top of the lead screw 406 via a coupling. The snap-fit ​​plate 403 is installed on the outer surface of the adjusting rod 402, and the limit plate 404 is installed at the bottom end of the adjusting rod 402. The laser emission port of the laser emitter 408 is opposite to the laser detection port of the laser detector 410. The laser emitter 408 emits laser light, which is received by the laser detector 410.

[0040] The rotating assembly 2 includes a rotating gear 201, a hinge frame 202, a hinge rod 203, a clamping column 204, and a placement platform 205. The rotating gear 201 is rotatably mounted on the top surface of the base assembly 1. The hinge frame 202 is mounted on both sides of the top of the rotating gear 201. The hinge rod 203 is hinged to both sides of the hinge frame 202. The clamping column 204 is mounted on the inner side of the hinge rod 203. The placement platform 205 is mounted at the center of the top of the rotating gear 201. A torsion spring is movably mounted between the hinge rod 203 and the interior of the hinge frame 202.

[0041] The rotating assembly 2 also includes a movable groove 206, a guide rod 207, a clamping plate 208, a compression spring 209, a lifting waist hole 210, and a handle bracket 211. The top of the placement platform 205 is provided with a movable groove 206. The guide rod 207 is installed inside the movable groove 206. The clamping plates 208 are slidably installed on both sides inside the movable groove 206. The compression spring 209 is movably installed between the clamping plate 208 and the movable groove 206. One end of the compression spring 209 is connected to the clamping plate 208, and the other end of the compression spring 209 is connected to the inner wall of the movable groove 206. The surface of the clamping plate 208 is provided with a lifting waist hole 210. The handle bracket 211 is slidably installed inside the lifting waist hole 210.

[0042] The linkage assembly 3 includes a gear ring 301, a snap-fit ​​groove 302, an upper driven gear 303, a rotating shaft 304, and a lower driven gear 305. The gear ring 301 is movably mounted on the outside of the adjusting rod 402. The upper driven gear 303 is meshed with the outer surface of the gear ring 301. The rotating shaft 304 is mounted on the bottom end of the upper driven gear 303, and the lower driven gear 305 is mounted on the bottom end of the rotating shaft 304.

[0043] The reference positioning mechanism 5 includes a reference platform 501, a connecting rod 502, a reference insertion rod 503, and a reference groove 504. Four connecting rods 502 are installed on the outer surface of the reference platform 501. The connecting rods 502 are fixedly connected to the lifting platform 401. The bottom end of the reference platform 501 is provided with a reference groove 504. The reference insertion rod 503 is detachably installed inside the reference groove 504.

[0044] By cooperating with the reference stage 501 and the reference rod 503, the device can establish a fixed reference axis by inserting the puncture needle 7 into the reference groove 504 and the reference rod 503 into the puncture needle 7 during use. This avoids errors in measurement results caused by different reference lines due to different angles of the handle 6 and the puncture needle 7 during testing.

[0045] The reference positioning mechanism 5 also includes a spring groove 505, a movable block 506, a compression spring 507, and a clamping flexible pad 508. The inner wall surface of the reference groove 504 is provided with four spring grooves 505. The movable block 506 is slidably installed inside the spring groove 505. The clamping flexible pad 508 is detachably installed on the outer surface of the movable block 506. The compression spring 507 is movably installed between the movable block 506 and the inside of the spring groove 505. One end of the compression spring 507 is connected to the movable block 506, and the other end of the compression spring 507 is connected to the inner wall of the spring groove 505.

[0046] The movable block 506 and the compression spring 507 work together to allow the device to be used so that the movable block 506 can be pushed out by the compression spring 507, thereby clamping the puncture needle 7 by the clamping flexible pad 508. This allows the device to clamp and install puncture needles 7 of different sizes, while the clamping flexible pad 508 can prevent the puncture needle 7 from being deformed or damaged by the force of clamping.

[0047] Base assembly 1 includes a base 101, support columns 102, a servo motor 103, a base plate 104, a fixing rod 105, a fixing ring 106, a movable ring 107, and a hydraulic cylinder 108. Four support columns 102 are installed on the outer ring of the bottom end of the base 101. The servo motor 103 is located at the center of the bottom end of the base 101. Four base plates 104 are installed on the top surface of the base 101. Each pair of opposite base plates 104 forms a base plate group. A hydraulic cylinder 108 is installed on the top of the two base plates 104 in one base plate group. The output end of the hydraulic cylinder 108 is fixedly connected to the movable ring. 107. The movable ring 107 is movably installed on the bottom surface of the adjusting rod 402. The top surface of the movable ring 107 is provided with a movable ring groove. The bottom end of the adjusting rod 402 is movably inserted into the movable ring groove. A fixed rod 105 is installed on the top of one of the base plates 104 in another base plate group. A fixed ring 106 is movably installed on the bottom surface of the gear ring 301. One side of the fixed ring 106 is fixedly connected to the fixed rod 105, and the other side of the fixed ring 106 is rotatably connected to the rotating shaft 304. The lower driven gear 305 is rotatably installed on the top surface of the other base plate 104 in another base plate group.

[0048] With the cooperation of hydraulic cylinder 108 and snap-fit ​​plate 403, the device can be pushed out through the output end of hydraulic cylinder 108 during use, thereby driving the movable ring 107 to rise, and then driving the adjusting rod 402 to rise through the movable ring 107. At this time, the adjusting rod 402 will drive the reference platform 501 to rise synchronously, so that the device can be adapted to install puncture needles 7 of different lengths.

[0049] The clamping post 204 is movably inserted into the groove on the surface of the handle 6. The output end of the servo motor 103 is connected to the bottom shaft of the rotating gear 201 through a coupling. The rotating gear 201 is meshed with the lower driven gear 305. The bottom surface of the handle 6 is in contact with the surface of the handle bracket 211. The snap-fit ​​plate 403 is movably inserted into the snap-fit ​​groove 302. The clamping plate 208 is in contact with the surface of the handle 6.

[0050] The surface of the flexible pad 508 is in contact with the surface of the puncture needle 7, and the reference rod 503 is movably inserted into the interior of the puncture needle 7.

[0051] When using the puncture needle axis alignment and eccentricity measuring device with a handle, first install the puncture needle 7 onto the surface of the handle 6, then pull the clamping column 204 outward and place the handle 6 on the surface of the placement platform 205. At this time, the hydraulic cylinder 108 can drive the movable ring 107 to rise and fall, thereby driving the adjusting rod 402 to rise and fall through the movable ring 107, and then driving the reference platform 501 to rise and fall through the adjusting rod 402, so that the reference platform 501 moves to the top position of the puncture needle 7 and inserts the puncture needle 7 into the interior of the reference groove 504, and inserts the reference insertion rod 503 into the interior of the puncture needle 7. At this time, the measurement reference axis is established.

[0052] Then, the clamping post 204 is released, and the clamping post 204 will be tightened towards the handle 6 by the elastic force of the torsion spring, thus clamping the surface of the handle 6. At the same time, the pressure of the handle 6 will push the handle bracket 211 down, so that the handle bracket 211 descends inside the lifting waist hole 210 to the surface of the placement platform 205, thereby placing the handle 6. Meanwhile, the clamping plate 208 will move inside the movable groove 206 by the elastic force of the compression spring 209, so that the clamping plate 208 is in close contact with the surface of the handle 6, clamping the handle 6.

[0053] At this time, the servo motor 103 drives the rotating gear 201 to rotate, thereby driving the handle 6 to rotate synchronously. Simultaneously, the meshing of the rotating gear 201 and the lower driven gear 305 drives the lower driven gear 305 to rotate. The lower driven gear 305 then drives the upper driven gear 303 to rotate via the rotating shaft 304. The upper driven gear 303 then drives the gear ring 301 meshing with it to rotate. Since the locking plate 403 is locked inside the locking groove 302, the rotation of the gear ring 301 simultaneously drives the adjusting rod 402 to rotate. When the adjusting rod 402 rotates, it drives the laser emitter 408. The laser emitter 408 and the laser detector 410 rotate synchronously, thereby detecting the eccentricity of the puncture needle 7 position through the laser emitter 408 and the laser detector 410. When the puncture needle 7 is eccentric to the established measurement reference axis or when the puncture needle 7 itself is bent or skewed, the selection of the puncture needle 7 will cause the distance detected by the laser emitter 408 and the laser detector 410 to change periodically. At this time, the change signal is sent to the inside of the control terminal 8, and the control terminal 8 analyzes the signal, calculates the peak value of the eccentricity, which is the collimation eccentricity of the puncture needle 7, and displays it on the surface of the control terminal 8.

[0054] While the laser emitter 408 and the laser detector 410 are measuring, the lead screw 406 can be driven to rotate by the lead screw motor 405, so that the lead screw 406 drives the lead screw movable sleeve 411 to rise and fall on the surface of the lead screw 406, thereby driving the connecting ring 409, the laser emitter 408 and the laser detector 410 to rise and fall, so that different positions on the surface of the puncture needle 7 can be detected, improving the detection accuracy.

[0055] Note that the above description is merely a preferred embodiment of the present invention and the techniques employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A device for measuring the alignment and eccentricity of a puncture needle axis with a handle, characterized in that: It includes a base assembly (1), a rotating assembly (2) and a linkage assembly (3). The rotating assembly (2) is located at the top of the base assembly (1), and the linkage assembly (3) is located at the top of the rotating assembly (2). The inner side of the linkage assembly (3) is provided with a lifting detection mechanism (4), and the top of the inner side of the lifting detection mechanism (4) is provided with a reference positioning mechanism (5). The top of the rotating assembly (2) is provided with a handle (6), and a puncture needle (7) is detachably installed at the top of the handle (6). The linkage component (3) includes a gear ring (301), a snap-fit ​​groove (302), an upper driven gear (303), a rotating shaft (304), and a lower driven gear (305). The gear ring (301) is movably mounted on the outside of the adjusting rod (402). The upper driven gear (303) is meshed with the outer surface of the gear ring (301). The rotating shaft (304) is mounted on the bottom end of the upper driven gear (303), and the lower driven gear (305) is mounted on the bottom end of the rotating shaft (304). The rotating component (2) includes a rotating gear (201), which is meshed with the lower driven gear (305). The lifting detection mechanism (4) includes a lifting platform (401), adjusting rods (402), a snap-fit ​​plate (403), a limiting plate (404), a lead screw motor (405), a lead screw (406), a guide column (407), a laser emitter (408), a connecting ring (409), a laser detector (410), and a lead screw movable sleeve (411). The lifting platform (401) is movably installed on the outside of the reference positioning mechanism (5). Two adjusting rods (402) are installed at the bottom end of the lifting platform (401). A snap-fit ​​plate (403) is installed on the outer surface of the adjusting rods (402). The snap-fit ​​plate (403) is movable. Inside the card slot (302), a lead screw (406) is rotatably mounted inside one of the adjusting rods (402), and a guide post (407) is provided inside the other adjusting rod (402). A lead screw sleeve (411) is movably mounted on the outer surface of the lead screw (406). A connecting ring (409) is provided at the outer end of the lead screw sleeve (411). A laser emitter (408) is mounted on the connecting ring (409). A laser detector (410) is movably connected to the surface of the guide post (407). The included angle between the laser detector (410) and the laser emitter (408) is 180°. The reference positioning mechanism (5) includes a reference platform (501), a connecting rod (502), a reference insertion rod (503), and a reference groove (504). Four connecting rods (502) are installed on the outer surface of the reference platform (501). The connecting rods (502) are fixedly connected to the lifting platform (401). The bottom end of the reference platform (501) is provided with a reference groove (504). The reference insertion rod (503) is detachably installed inside the reference groove (504).

2. The device for measuring the alignment and eccentricity of a puncture needle axis with a handle according to claim 1, characterized in that: The top of the lifting platform (401) is equipped with a lead screw motor (405) near the lead screw (406). The output end of the lead screw motor (405) is connected to the top of the lead screw (406) via a coupling. The bottom end of the adjusting rod (402) is equipped with a limit plate (404). The laser emission port of the laser emitter (408) is opposite to the laser detection port of the laser detector (410).

3. The device for measuring the alignment and eccentricity of a puncture needle axis with a handle according to claim 2, characterized in that: The rotating assembly (2) further includes a hinge frame (202), a hinge rod (203), a clamping column (204), and a placement platform (205). The rotating gear (201) is rotatably mounted on the top of the base assembly (1). The hinge frame (202) is mounted on both sides of the top of the rotating gear (201). The hinge rod (203) is hinged on both sides of the hinge frame (202). The clamping column (204) is mounted on the inner side of the hinge rod (203). The placement platform (205) is mounted at the center of the top of the rotating gear (201). A torsion spring is movably mounted between the hinge rod (203) and the interior of the hinge frame (202).

4. The device for measuring the alignment and eccentricity of a puncture needle axis with a handle according to claim 3, characterized in that: The rotating assembly (2) further includes a movable groove (206), a guide rod (207), a clamping plate (208), a compression spring (209), a lifting waist hole (210), and a handle bracket (211). The top of the placement platform (205) is provided with a movable groove (206). A guide rod (207) is installed in the movable groove (206). A clamping plate (208) is slidably installed on both sides inside the movable groove (206). A compression spring (209) is movably installed between the clamping plate (208) and the movable groove (206). One end of the compression spring (209) is connected to the clamping plate (208), and the other end of the compression spring (209) is connected to the inner wall of the movable groove (206). A lifting waist hole (210) is provided on the surface of the clamping plate (208). A handle bracket (211) is slidably installed inside the lifting waist hole (210).

5. The device for measuring the alignment and eccentricity of a puncture needle axis with a handle according to claim 4, characterized in that: The reference positioning mechanism (5) further includes a spring groove (505), a movable block (506), a compression spring (507), and a clamping flexible pad (508). The inner wall surface of the reference groove (504) is provided with four spring grooves (505). The movable block (506) is slidably installed inside the spring groove (505). The clamping flexible pad (508) is detachably installed on the outer surface of the movable block (506). The compression spring (507) is movably installed between the movable block (506) and the inside of the spring groove (505). One end of the compression spring (507) is connected to the movable block (506), and the other end of the compression spring (507) is connected to the inner wall of the spring groove (505).

6. The device for measuring the alignment and eccentricity of a puncture needle axis with a handle according to claim 5, characterized in that: The base assembly (1) includes a base (101), support columns (102), a servo motor (103), a base plate (104), a fixing rod (105), a fixing ring (106), a movable ring (107), and a hydraulic cylinder (108). Four support columns (102) are installed on the outer ring of the bottom end of the base (101). A servo motor (103) is provided at the center of the bottom end of the base (101). Four base plates (104) are installed on the top surface of the base (101). Each pair of opposite base plates (104) forms a base plate group. A hydraulic cylinder (108) is installed on the top of the two base plates (104) in one base plate group. The output end of the hydraulic cylinder (108) is fixed. A movable ring (107) is fixedly connected to the bottom surface of the adjusting rod (402). The top surface of the movable ring (107) is provided with a movable ring groove. The bottom end of the adjusting rod (402) is movably inserted into the movable ring groove. A fixed rod (105) is installed on the top of one of the base plates (104) in another base plate group. A fixed ring (106) is movably installed on the bottom surface of the gear ring (301). One side of the fixed ring (106) is fixedly connected to the fixed rod (105), and the other side is rotatably connected to the rotating shaft (304). The lower driven gear (305) is rotatably installed on the top surface of the other base plate (104) in another base plate group.

7. The device for measuring the alignment and eccentricity of a puncture needle axis with a handle according to claim 6, characterized in that: The clamping post (204) is movably inserted into the groove on the surface of the handle (6). The output end of the servo motor (103) is connected to the bottom shaft of the rotating gear (201) through a coupling. The bottom surface of the handle (6) is in contact with the surface of the handle bracket (211). The clamping plate (208) is in contact with the surface of the handle (6).

8. The device for measuring the alignment and eccentricity of a puncture needle axis with a handle according to claim 6, characterized in that: The surface of the clamping flexible pad (508) is in contact with the surface of the puncture needle (7), and the reference insertion rod (503) is movably inserted into the interior of the puncture needle (7).

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