Lung nodule puncture positioning device

Abstract

The invention discloses a lung nodule puncture positioning device, and belongs to the technical field of lung nodule puncture, the lung nodule puncture positioning device comprises a base plate, the inner side of the base plate is sleeved with a puncture needle and a spiral cutting biopsy needle; an outer sleeve is movably connected to the center of the inner side of the base plate through a concave spherical shell, an inner sleeve is slidably connected to the inner side of the outer sleeve, a depth adjusting assembly and an angle adjusting assembly are arranged at the top end of the base plate, and a bottom cover and a cleaning cotton ball are arranged at the bottom of the outer sleeve. According to the lung nodule puncture positioning device, through cooperation of the angle adjusting assembly and the depth adjusting assembly, the puncture positions of the puncture needle and the spiral cutting biopsy needle are accurately controlled, the puncture efficiency is improved, and the pain degree of a patient is relieved; meanwhile, the bottom cover and the cleaning cotton ball are arranged at the bottom of the outer sleeve, so that when the inner sleeve is pulled out, residual blood tissues and the like on the surface of the needle tube can be wiped off through contact friction between the puncture needle and the cleaning cotton ball, and the inner wall of the outer sleeve is prevented from being scratched.

Description

Technical Field

[0001] The invention relates to the technical field of pulmonary nodule puncture, and in particular to a pulmonary nodule puncture positioning device. Background Art

[0002] Lung nodules are often related to lung cancer. If nodules are found through lung CT images, they need to be diagnosed and treated early. In order to correctly diagnose the pathology and make the right treatment, puncture technology is needed to biopsy or perform targeted treatment on the nodules. The existing puncture technology has the following defects: First, currently, the puncture needle is usually positioned manually by medical staff. This positioning method has poor effect and poor accuracy. At the same time, it is easy to shake during the puncture process, which increases the risk of puncture surgery; Second, in the real-time puncture positioning process of the existing lung nodule puncture positioning device, when the bronchoscope reaches the local area to be punctured, due to graphic errors and the positional relationship of the puncture site, the puncture needle cannot accurately puncture the puncture site, resulting in low puncture efficiency, inconvenient sampling, and a long time consumption, and deepens the patient's discomfort; In order to overcome the first defect, the prior art (application number: 202411058739.8, Chinese patent with application date of 2024-08-02) discloses a positioning auxiliary device for cerebral hemorrhage puncture, which adjusts the position of the first adjustment part and the positioning part by the driving part, so that the first adjustment part and the positioning part are moved to the pathological part of the patient. After adjusting to a position suitable for puncture, the puncture rod is moved along the semicircular tube to puncture the patient, so that the medical staff does not need to manually position the puncture needle, which greatly improves the safety of the puncture operation. The first defect mentioned above is solved by this structure; In order to overcome the second defect, the prior art (application number: 202210106099.8, Chinese patent with application date of 2022-01-28) discloses a lung nodule puncture positioning device based on electromagnetic navigation, which regulates the end of the bronchoscope through a bending direction-finding device so that the end of the bronchoscope can turn freely to guide the puncture guide wire to point to the site to be punctured. At the same time, the puncture guide wire is clamped and fixed by a twisting clamp ring, thereby facilitating the facing direction of the end of the puncture guide wire, and is regulated by a twisting positioning key to ensure the static stability after adjustment. The second defect mentioned above is solved by this structure; Although the prior art 1 and the prior art 2 can overcome the above defects, the existing puncture positioning device still cannot accurately control the puncture angle and depth, resulting in insufficient puncture accuracy, causing great pain to the patient; and the puncture needle needs to be manually removed and thrown away by medical staff after puncture. During the operation, the blood tissue remaining on the puncture needle may be scraped onto the inner wall of the device, which is not easy to clean; In view of the above problems, it is urgent to carry out innovative design based on the original equipment. Therefore, we proposed a pulmonary nodule puncture positioning device that can well solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a lung nodule puncture positioning device to solve the problem that the existing puncture positioning devices on the market currently mentioned in the above background technology still cannot be accurately controlled in terms of puncture angle and depth, resulting in insufficient puncture accuracy and causing great pain to patients; and the puncture needle needs to be manually removed and thrown away by medical staff after puncture. During the operation, blood tissue remaining on the puncture needle may scrape onto the inner wall of the device, making it difficult to clean.

[0004] To achieve the above object, the present invention provides the following technical solution: a pulmonary nodule puncture positioning device, comprising a chassis, a puncture needle is sleeved on the inner side of the chassis, and a spiral biopsy needle is threadedly connected to the inner side of the puncture needle; The inner center of the chassis is movably sleeved with an outer sleeve and an inner sleeve in sequence from the outside to the inside, and the puncture needle and the spiral biopsy needle are limitedly slid on the inner side of the inner sleeve; A depth adjustment component is provided on one side of the inner sleeve, and the depth adjustment component includes a receiving cavity provided on the side wall of the outer sleeve, a micro motor is fixedly installed at one end of the receiving cavity, and an output shaft at one end of the micro motor is fixedly connected to a gear through a connecting rod, and a plurality of vertically equidistantly arranged tooth grooves are provided on the side wall of the inner sleeve, and the tooth grooves are meshed with the gears. By setting the depth adjustment component, the gears are driven to rotate by the micro motor, and the gears continue to drive the inner sleeve to move by meshing with the tooth grooves, so that the inner sleeve can be lifted and moved inside the outer sleeve, and the depth of the puncture needle inserted into the inner side of the outer sleeve is changed by the movement of the inner sleeve, so that the length of the bottom of the puncture needle exposed from the outer sleeve is changed accordingly, and the depth of the puncture needle inserted into the patient's pulmonary nodule can be adjusted. At the same time, when the micro motor stops rotating, its output shaft is fixed to fix the gear, and the gear also performs clamping and limiting on the tooth groove, thereby preventing the inner sleeve from vertically displacing during puncture, which leads to inaccurate puncture depth; The top of the chassis is provided with an angle adjustment component, and the angle adjustment component includes a driving motor fixedly installed on the top of one side of the chassis, a worm is fixedly connected to an output shaft on one side of the driving motor, and the worm is rotatably connected to the top of the chassis through a support seat, the top of the chassis is rotatably connected to a worm wheel, the worm is meshed with the worm wheel, and the top of the worm wheel is rotatably connected to a hydraulic cylinder, an outer wall of one side of the outer sleeve is fixedly connected to a support frame, a fixed shaft rod is fixedly connected between the inner walls at both ends of the support frame, and the end of the hydraulic cylinder rod body is rotatably connected to the outer side of the fixed shaft rod. By setting the angle adjustment component, the hydraulic cylinder rod body can be extended and retracted to adjust the angle. The outer sleeve is driven to tilt, and the concave spherical shell rotates synchronously, and the driving motor is used to drive the worm to rotate, and the worm continues to drive the meshing worm wheel to rotate, and the hydraulic cylinder installed on the top of the worm wheel rotates synchronously to change the tilt direction of the outer sleeve. In this way, by changing the tilt angle and direction of the outer sleeve, the puncture angle of the puncture needle can be flexibly controlled. At this time, the spiral biopsy needle can be rotated downward to expose the puncture needle at its bottom, and then inserted into the patient's wound for tissue sampling. Through the cooperation of the angle adjustment component and the depth adjustment component, the puncture position can be accurately controlled, which not only improves the puncture efficiency, but also reduces the patient's pain. The outer bottom of the outer sleeve is sleeved with a bottom cover, a cleaning cotton ball is placed inside the bottom cover, and the puncture needle is inserted into the inner side of the cleaning cotton ball, wherein the bottom cover and the cleaning cotton ball are both disposable items and are fully disinfected before use. After the puncture and sampling are completed, when the inner sleeve is pulled out from the inner side of the outer sleeve, the blood tissue remaining on the surface can be wiped clean by the contact and friction between the puncture needle and the cleaning cotton ball to avoid scratching the inner wall of the outer sleeve, thereby improving the cleanliness of the device operation, and due to the special structure of the spiral biopsy needle, the sampled tissue can be hidden inside the gap of the threaded protrusion and will not be wiped off by the cleaning cotton ball to cause sample loss.

[0005] Preferably, the outer wall of the chassis is provided with a plurality of fixing members, and the fixing members include a plurality of suction cups fixed at the bottom end of the chassis and distributed in a matrix, and a plurality of restraining belts fixed at both sides and distributed symmetrically.

[0006] By adopting the above technical solution, when the device is placed at the approximate position of the patient's pathological site on the skin surface, the suction cup can be used to adhere to the skin surface to temporarily fix the entire device, and then the elastic strap can be fixed to the bed through the buckle to firmly fix the device, thereby improving the stability when adjusting the puncture angle and depth later.

[0007] Preferably, the micro motor, drive motor and hydraulic cylinder are all electrically connected to the control system, and can be wirelessly remotely controlled by the control system.

[0008] By adopting the above technical solution, the micro motor, drive motor and hydraulic cylinder can realize precise operation according to the system setting, thereby ensuring the precision of puncture.

[0009] Preferably, a recessed spherical shell is formed on the outer side of the outer sleeve, and the bottom of the recessed spherical shell does not expose the chassis to ensure the cleanliness and sterility of the patient's wound surface. The recessed spherical shell is movably connected to the center of the chassis, and a support frame is fixedly connected to the outer wall of one side of the outer sleeve, and a fixed shaft rod is fixedly connected between the inner walls at both ends of the support frame, and the end of the hydraulic cylinder rod body is rotatably connected to the outer side of the fixed shaft rod.

[0010] By adopting the above technical solution, the outer sleeve can be flexibly tilted and rotated around the chassis by utilizing the movable connection between the recessed spherical shell and the chassis. The rod body of the hydraulic cylinder is connected to the outer sleeve by the support frame and the fixed shaft rod, and the tilt of the outer sleeve can be adaptively adjusted.

[0011] Preferably, convex strips are formed on both side outer walls of the spiral biopsy needle, and grooves are formed on both side inner walls of the inner sleeve, and the convex strips and the grooves are vertically limited and slidable.

[0012] By adopting the above technical solution, the puncture needle can be axially limited by the vertical limiting sliding of the convex strip and the groove when the spiral biopsy needle is rotated downward, so as to maintain the stability of the downward rotation of the spiral biopsy needle, thereby alleviating the patient's pain.

[0013] Preferably, the bottom end of the worm wheel is fixedly connected to a limiting ring, the cross section of the limiting ring is a T-shaped structure, and the limiting ring slides on the inner side of the top end of the chassis.

[0014] By adopting the above technical solution, the worm wheel can be limited to axial rotation only along the surface of the chassis, thereby ensuring the stability of its engagement with the worm.

[0015] Preferably, the top of the worm gear is fixedly connected to a base plate, one side of the top of the base plate is connected to a flip plate for slight rotation, the hydraulic cylinder is fixedly mounted on the top of the flip plate, and a bendable stable spring is fixedly connected between the base plate and the flip plate.

[0016] By adopting the above technical solution, utilizing the slight rotation of the bottom plate and the flip plate, and the elastic effect of the stabilizing spring, when the hydraulic cylinder pushes the outer sleeve to tilt, the end of the rod body of the hydraulic cylinder and the fixed shaft can be coordinated to rotate slightly to adapt to the rotation, thereby improving the anti-seismic and buffering stability of the angle adjustment component during operation.

[0017] Preferably, the bottom cover is detachably connected to the bottom end of the outer sleeve by a convenient snap-on assembly, the convenient snap-on assembly includes protrusions formed on both sides of the bottom end of the outer sleeve, and sliding grooves are provided on both sides of the bottom cover, and the protrusions slide on the inner sides of the sliding grooves. The insides of the two sides of the bottom cover are slidably connected to the clamping rods, and the clamping rods are inserted into the inner sides of the sliding grooves to limit the protrusions, one ends of the two clamping rods pass through the outer side of the bottom cover and are fixedly connected with a connecting bent rod together, and a clamping spring is fixedly connected between the connecting bent rod and the outer wall of the bottom cover.

[0018] By adopting the above technical solution, the connecting bent rod is pushed toward the bottom cover by using the clamping spring, so that the two clamping rods are firmly inserted into the inner side of the slide groove, thereby limiting the protrusion, and ensuring the stability of the bottom cover installed on the bottom end of the outer sleeve. When it is necessary to disassemble to replace the internal cleaning cotton ball, it is only necessary to pull the connecting bent rod away from the bottom cover to make the clamping rod disengage from the slide groove, and the limited protrusion can be disengaged from the inner side of the bottom cover through the cleaning cotton ball, thereby realizing convenient disassembly of the bottom cover.

[0019] Preferably, a plurality of hooks are fixedly connected to the inner wall of the bottom end of the bottom cover, and the hooks are in a "trunk" structure with a middle vertical rod and branching horizontal rods extending from both sides.

[0020] By adopting the above technical solution, when the puncture needle penetrates the cleaning cotton ball downward to expose the outer sleeve, the friction between the puncture needle and the cleaning cotton ball will drive the cleaning cotton ball to be squeezed downward. At the same time, through the cooperation of the bifurcated structure of the hook and hanger, the cleaning cotton ball can be tightly wrapped around the outside of the hook and hanger. In this way, when the puncture needle is pulled upward after puncture, the friction between the two can be increased without causing the cleaning cotton ball to move, thereby improving the cleanliness of the puncture needle surface wiped by the cleaning cotton ball.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the lung nodule puncture positioning device can accurately control the puncture positions of the puncture needle and the spiral biopsy needle through the cooperation of the angle adjustment component and the depth adjustment component, which not only improves the puncture efficiency but also reduces the pain of the patient; at the same time, by arranging a bottom cover and a cleaning cotton ball at the bottom of the outer sleeve, when the inner sleeve is pulled out, the blood tissue and the like remaining on the needle tube surface can be wiped off through the contact friction between the puncture needle and the cleaning cotton ball, thereby avoiding scratching the inner wall of the outer sleeve; 1. By setting a depth adjustment component, a micro motor is used to drive the gear to rotate, and the gear continues to drive the inner cannula to move by meshing with the tooth groove. The movement of the inner cannula changes the depth of the puncture needle inserted into the inner side of the outer cannula, so that the length of the bottom of the puncture needle exposed from the outer cannula changes accordingly, and the depth of the puncture needle inserted into the patient's lung nodule can be adjusted; 2. By setting an angle adjustment component, the outer sleeve can be tilted by the extension and retraction of the rod of the hydraulic cylinder, and the concave spherical shell rotates synchronously, and the drive motor drives the worm to rotate, and the worm drives the meshing worm wheel to rotate, and the hydraulic cylinder installed on the top of the worm wheel rotates synchronously to change the tilt direction of the outer sleeve. In this way, by changing the tilt angle and direction of the outer sleeve, the puncture angle of the puncture needle can be flexibly controlled. At this time, the spiral biopsy needle can be rotated downward to expose the puncture needle at its bottom, and inserted into the patient's wound for tissue sampling. The puncture position can be accurately controlled by the cooperation of the angle adjustment component and the depth adjustment component, which not only improves the puncture efficiency but also reduces the patient's pain. 3. The bottom cover and the cleaning cotton ball arranged at the bottom of the outer sleeve allow the puncture needle to be inserted into the inner side of the cleaning cotton ball. When the inner sleeve is pulled out from the inner side of the outer sleeve after puncture, the blood tissue and the like remaining on the needle tube surface can be wiped clean by the contact and friction between the puncture needle and the cleaning cotton ball, thereby avoiding scratching the inner wall of the outer sleeve, thereby improving the cleanliness of the device operation. In addition, due to the special structure of the spiral biopsy needle, the sampled tissue can be hidden inside the gap of the threaded protrusion and will not be wiped off by the cleaning cotton ball, causing sample loss. 4. By setting a convenient snap-in assembly and using a snap-in spring to push the connecting bent rod toward the bottom cover, the two clamping rods can be firmly inserted into the inner side of the slide groove, thereby limiting the protrusion and ensuring the stability of the bottom cover installed on the bottom end of the outer sleeve. When it is necessary to disassemble to replace the internal cleaning cotton ball, it is only necessary to pull the connecting bent rod away from the bottom cover to make the clamping rod disengage from the slide groove, and the limited protrusion can be disengaged from the inner side of the bottom cover through the cleaning cotton ball, thereby realizing convenient disassembly of the bottom cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the present invention as a whole; Figure 2 It is a bottom view structural schematic diagram of the whole present invention; Figure 3 It is a schematic diagram of the cutaway structure of the present invention as a whole; Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 5 It is a schematic diagram of the connection structure between the puncture needle, the outer sleeve and the inner sleeve of the present invention; Figure 6 For the present invention Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 7 It is a schematic diagram of the structure of the cleaning component of the present invention; Figure 8 Schematic diagram of the internal structure of the bottom cover of the present invention.

[0023] In the figure: 1. chassis; 2. puncture needle; 3. spiral biopsy needle; 4. recessed spherical shell; 5. outer sleeve; 6. inner sleeve; 7. accommodating chamber; 8. micro motor; 9. gear; 10. tooth groove; 11. fixing piece; 12. driving motor; 13. worm; 14. worm wheel; 15. limiting ring; 16. bottom plate; 17. flip plate; 18. hydraulic cylinder; 19. stabilizing spring; 20. supporting frame; 21. fixing shaft rod; 22. bottom cover; 23. cleaning cotton ball; 24. bump; 25. slide groove; 26. clamping rod; 27. connecting bent rod; 28. clamping spring; 29. ​​hook and hanging piece. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1: Please refer to Figure 1-Figure 5 As shown, the existing puncture positioning device still cannot accurately control the puncture angle and depth, resulting in insufficient puncture accuracy and causing great pain to the patient. In order to solve this technical problem, this embodiment discloses the following technical contents: A chassis 1, a puncture needle 2 is sleeved on the inner side of the chassis 1, a screw-cut biopsy needle 3 is threadedly connected to the inner side of the puncture needle 2, and a plurality of fixing members 11 are arranged on the outer wall of the chassis 1, the fixing members 11 include a plurality of suction cups fixed at the bottom end of the chassis 1 and distributed in a matrix, and a plurality of restraints fixed at both sides and distributed symmetrically, and the ends of the restraints are provided with buckles that can be mutually engaged, when the device is placed at the approximate position of the skin surface of the patient's pathological part, the suction cup can be adsorbed on the skin surface to temporarily fix the entire device, and then the elastic restraint is fixed and clamped on the bed through the buckle to firmly fix the device, thereby improving the stability when the puncture angle and depth are subsequently adjusted; The inner center of the chassis 1 is movably sleeved with an outer sleeve 5 and an inner sleeve 6 in sequence from the outside to the inside, and the puncture needle 2 and the spiral biopsy needle 3 are limitedly slid on the inner side of the inner sleeve 6, wherein a concave spherical shell 4 is formed on the outer side of the outer sleeve 5, and the concave spherical shell 4 is movably connected to the center of the chassis 1, so that the outer sleeve 5 can be flexibly tilted and rotated around the chassis 1 by utilizing the movable connection between the concave spherical shell 4 and the chassis 1, wherein the bottom of the concave spherical shell 4 does not expose the chassis 1, so as to ensure the cleanliness and sterility of the patient's wound surface; A depth adjustment component is provided on one side of the inner sleeve 6, and the depth adjustment component includes a accommodating chamber 7 opened on the side wall of the outer sleeve 5, a micro motor 8 is fixedly installed at one end of the accommodating chamber 7, and an output shaft at one end of the micro motor 8 is fixedly connected to a gear 9 through a connecting rod. A plurality of vertically equidistantly arranged tooth grooves 10 are provided on the side wall of the inner sleeve 6, and the tooth grooves 10 and the gear 9 are meshed with each other. By setting the depth adjustment component, the micro motor 8 is used to drive the gear 9 to rotate, and the gear 9 continues to drive the inner sleeve 6 to move by meshing with the tooth grooves 10, so that the inner sleeve 6 can be lifted and moved inside the outer sleeve 5, and the puncture needle 2 is inserted into the inner side of the outer sleeve 5 through the movement of the inner sleeve 6. The depth of the puncture needle 2 is changed, so that the length of the bottom of the puncture needle 2 exposed from the outer sleeve 5 changes accordingly, and the depth of the puncture needle 2 inserted into the patient's lung nodule can be adjusted, wherein the inner wall of the outer sleeve 5 and the inner wall of the inner sleeve 6 are both embedded with distance sensors at fixed positions. When the inner sleeve 6 is displaced along the outer sleeve 5, the length of the bottom of the puncture needle 2 exposed from the outer sleeve 5, that is, the puncture depth, matches the set value, the micro motor 8 will automatically stop rotating, and its output shaft is fixed to fix the gear 9, and the gear 9 also engages and limits the tooth groove 10, thereby preventing the inner sleeve 6 from vertically displacing during puncture, resulting in inaccurate puncture depth, thereby ensuring the operating accuracy of the depth adjustment component; An angle adjustment assembly is provided at the top of the chassis 1, and the angle adjustment assembly includes a driving motor 12 fixedly mounted on the top of one side of the chassis 1, and a worm 13 is fixedly connected to an output shaft on one side of the driving motor 12, and the worm 13 is rotatably connected to the top of the chassis 1 through a support seat, and a worm wheel 14 is rotatably connected to the top of the chassis 1, and the worm 13 is meshed with the worm wheel 14, wherein a limiting ring 15 is fixedly connected to the bottom end of the worm wheel 14, and the cross section of the limiting ring 15 is a T-shaped structure, and the limiting sliding is performed on the inner side of the top of the chassis 1, so that the worm wheel 14 can be limited to axial rotation only along the surface of the chassis 1, thereby ensuring the stability of its meshing with the worm 13, and a hydraulic cylinder 18 is rotatably connected to the top end of the worm wheel 14, and an outer wall of one side of the outer sleeve 5 is fixedly connected There is a support frame 20, and a fixed shaft 21 is fixedly connected between the inner walls at both ends of the support frame 20. The end of the rod body of the hydraulic cylinder 18 is rotatably connected to the outer side of the fixed shaft 21. The top of the worm gear 14 is fixedly connected to the bottom plate 16, and the top side of the bottom plate 16 is connected to the flip plate 17 with a small rotation. The hydraulic cylinder 18 is fixedly installed on the top of the flip plate 17, and a bendable stabilizing spring 19 is fixedly connected between the bottom plate 16 and the flip plate 17. By adopting the above technical solution, by utilizing the small rotation of the bottom plate 16 and the flip plate 17, and the elastic effect of the stabilizing spring 19, when the hydraulic cylinder 18 pushes the outer sleeve 5 to tilt, the end of the rod body of the hydraulic cylinder 18 and the rotation of the fixed shaft 21 can be coordinated to adapt to a small rotation, thereby The anti-vibration and buffering stability of the angle adjustment component during operation is improved. By setting the angle adjustment component, the outer sleeve 5 can be tilted by the extension and retraction of the rod body of the hydraulic cylinder 18, and the recessed spherical shell 4 rotates synchronously, and the drive motor 12 is used to drive the worm 13 to rotate, and the worm 13 continues to drive the meshing worm gear 14 to rotate, and the hydraulic cylinder 18 installed on the top of the worm gear 14 rotates synchronously to change the tilt direction of the outer sleeve 5. In this way, by changing the tilt angle and direction of the outer sleeve 5, the puncture angle of the puncture needle 2 can be flexibly controlled. Among them, the head of the spiral cutting biopsy needle 3 serves as the puncture head of the puncture needle 2, but it will not be completely retracted into the inner tube of the puncture needle 2. During the puncture process, the puncture needle 2 is moved downward for positioning puncture. After reaching the designated puncture site, the spiral biopsy needle 3 is rotated again for further spiral cutting and sampling. After the sampling is completed, the spiral biopsy needle 3 is rotated in the opposite direction to make it retreat into the puncture needle 2, so that the puncture site can be adjusted again and the biopsy tissue taken can be protected. It should be particularly noted that the outer walls of both sides of the spiral biopsy needle 3 are formed with convex strips, and the inner walls of both sides of the inner sleeve 6 are provided with grooves. The convex strips and the grooves are vertically limited and slid. In this way, when the spiral biopsy needle 3 is rotated downward, the puncture needle 2 can be axially limited to maintain the stability of the spiral biopsy needle 3 in the downward rotation movement, thereby alleviating the patient's pain. Through the cooperation of the angle adjustment component and the depth adjustment component, the puncture position can be accurately controlled, which not only improves the puncture efficiency but also reduces the patient's pain. Among them, the micro motor 8, the drive motor 12, and the hydraulic cylinder 18 are all electrically connected to the control system, and can be wirelessly remotely controlled by the control system, so that the micro motor 8, the drive motor 12, and the hydraulic cylinder 18 can achieve precise operation according to the system settings, thereby ensuring the precision of puncture.

[0026] Embodiment 2: The technical content disclosed in this embodiment is a further improvement made on the basis of the above embodiment 1. Figure 6-Figure 8 As shown, the existing puncture needle needs to be manually removed and thrown away by medical staff after puncture. During the operation, the blood tissue and the like remaining on the puncture needle may be scraped onto the inner wall of the device, which is not easy to clean. In order to further solve this technical problem, this embodiment discloses the following technical contents: The outer bottom of the outer sleeve 5 is sleeved with a bottom cover 22, and a cleaning cotton ball 23 is placed inside the bottom cover 22. The puncture needle 2 is inserted into the inner side of the cleaning cotton ball 23. The bottom cover 22 and the cleaning cotton ball 23 are both disposable items and are fully disinfected before use. When the puncture needle 2 is pulled out from the inner side of the outer sleeve 5 after puncture, the blood tissue and the like remaining on the surface can be wiped clean by contact and friction between the puncture needle 2 and the cleaning cotton ball 23, so as to avoid scratching the inner wall of the outer sleeve 5 and the inner sleeve 6, thereby improving the cleanliness of the device operation. In addition, due to the special structure of the spiral biopsy needle 3, the sampled tissue can be hidden inside the gap of the threaded protrusion, and will not be wiped off by the cleaning cotton ball 23 to cause sample loss. The bottom cover 22 is detachably connected to the bottom end of the outer sleeve 5 through a convenient snap-fit ​​assembly. The convenient snap-fit ​​assembly includes protrusions 24 formed on both sides of the bottom end of the outer sleeve 5. Slide grooves 25 are provided on both sides of the bottom cover 22. The protrusions 24 slide on the inner sides of the slide grooves 25. The inner sides of the bottom cover 22 are slidably connected to the clamping rods 26. The clamping rods 26 are inserted into the inner sides of the slide grooves 25 to limit the protrusions 24. One end of the two clamping rods 26 passes through the outer side of the bottom cover 22 and is fixedly connected with a connecting bent rod 27. A clamping spring 28 is fixedly connected between the connecting bent rod 27 and the outer wall of the bottom cover 22. By adopting With the above technical solution, the connecting bent rod 27 is pushed toward the bottom cover 22 by the clamping spring 28, so that the two clamping rods 26 are firmly inserted into the inner side of the slide groove 25, so as to limit the protrusion 24, and thus the stability of the bottom cover 22 installed on the bottom end of the outer sleeve 5 can be ensured. When it is necessary to disassemble and replace the cleaning cotton ball 23 inside, it is only necessary to pull the connecting bent rod 27 in the direction away from the bottom cover 22, so that the clamping rod 26 can be disengaged from the slide groove 25, and the limited protrusion 24 can be disengaged from the inner side of the bottom cover 22 through the cleaning cotton ball 23, thereby realizing the convenient disassembly of the bottom cover 22; A plurality of hooks 29 are fixedly connected to the inner wall of the bottom end of the bottom cover 22. The hooks 29 are of a "trunk" type structure with a middle vertical rod and branch horizontal rods extending from both sides. By adopting the above technical solution, when the puncture needle 2 penetrates the cleaning cotton ball 23 downward to expose the outer sleeve 5, the friction between the puncture needle 2 and the cleaning cotton ball 23 will drive the cleaning cotton ball 23 to be squeezed downward. At the same time, through the cooperation of the bifurcated structure of the hook 29, the cleaning cotton ball 23 can be tightly wrapped around the outer side of the hook 29. In this way, when the puncture needle 2 is pulled upward after puncture, the friction between the two can be increased without causing the cleaning cotton ball 23 to move, thereby improving the cleanliness of the surface of the puncture needle 2 wiped by the cleaning cotton ball 23.

[0027] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lung nodule puncture positioning device, comprising a base plate (1), a puncture needle (2) being sleeved on the inner side of the base plate (1), and a helical biopsy needle (3) being threadedly connected to the inner side of the puncture needle (2); It is characterized in that An outer sleeve (5) and an inner sleeve (6) are movably sleeved in sequence from the outside to the inside at the inner center of the chassis (1), and the puncture needle (2) and the spiral biopsy needle (3) are limitedly slid on the inner side of the inner sleeve (6); A depth adjustment component is provided on one side of the inner sleeve (6), the depth adjustment component comprising a receiving chamber (7) provided on the side wall of the outer sleeve (5), a micro motor (8) being installed at one end of the receiving chamber (7), an output shaft at one end of the micro motor (8) being fixedly connected to a gear (9), a tooth groove (10) being provided on the side wall of the inner sleeve (6), the tooth groove (10) being meshed with the gear (9); An angle adjustment assembly is provided at the top of the chassis (1), the angle adjustment assembly comprising a drive motor (12) mounted on the top of one side of the chassis (1), a worm (13) being fixedly connected to an output shaft on one side of the drive motor (12), a worm wheel (14) being rotatably connected to the top of the chassis (1), the worm (13) being meshed with the worm wheel (14), a hydraulic cylinder (18) being provided at the top of the worm wheel (14), and the hydraulic cylinder (18) being movably connected to the outer sleeve (5); A bottom cover (22) is sleeved on the outside of the bottom of the outer sleeve (5), and a cleaning cotton ball (23) is placed inside the bottom cover (22).

2. A pulmonary nodule puncture positioning device according to claim 1, characterized in that: The outer wall of the chassis (1) is provided with a plurality of fixing members (11), and the fixing members (11) comprise a plurality of suction cups fixed to the bottom end of the chassis (1) and distributed in a matrix, and a plurality of restraining belts fixed to both sides and distributed in a symmetrical manner.

3. A pulmonary nodule puncture positioning device according to claim 1, characterized in that: The micro motor (8), the drive motor (12), and the hydraulic cylinder (18) are all electrically connected to the control system.

4. A pulmonary nodule puncture positioning device according to claim 3, characterized in that: A concave spherical shell (4) is formed on the outer side of the outer sleeve (5), and the concave spherical shell (4) is movably connected to the center of the chassis (1). A support frame (20) is fixedly connected to an outer wall of one side of the outer sleeve (5), and a fixed shaft rod (21) is fixedly connected between the inner walls at both ends of the support frame (20). The end of the rod body of the hydraulic cylinder (18) is rotatably connected to the outer side of the fixed shaft rod (21).

5. A pulmonary nodule puncture positioning device according to claim 1, characterized in that: The outer walls of both sides of the spiral biopsy needle (3) are formed with convex strips, and the inner walls of both sides of the inner sleeve (6) are provided with grooves, and the convex strips and the grooves are vertically limited and slidable.

6. A pulmonary nodule puncture positioning device according to claim 1, characterized in that: The bottom end of the worm wheel (14) is fixedly connected to a limiting ring (15); the limiting ring (15) has a T-shaped cross-section and is limitedly slidable on the inner side of the top end of the chassis (1).

7. A pulmonary nodule puncture positioning device according to claim 6, characterized in that: The top of the worm wheel (14) is fixedly connected to a bottom plate (16), one side of the top of the bottom plate (16) is connected to a flip plate (17) in a manner that allows it to rotate slightly, the hydraulic cylinder (18) is fixedly mounted on the top of the flip plate (17), and a bendable stable spring (19) is fixedly connected between the bottom plate (16) and the flip plate (17).

8. A pulmonary nodule puncture positioning device according to claim 1, characterized in that: The bottom cover (22) is detachably connected to the bottom end of the outer sleeve (5) via a convenient snap-fit ​​assembly, wherein the convenient snap-fit ​​assembly comprises protrusions (24) formed on both sides of the bottom end of the outer sleeve (5), and slide grooves (25) are provided on both sides of the bottom cover (22). The protrusions (24) slide on the inner sides of the slide grooves (25), and the inner sides of the bottom cover (22) are slidably connected to the clamping rods (26), and the clamping rods (26) are inserted into the inner sides of the slide grooves (25) to limit the protrusions (24), and one end of the two clamping rods (26) passes through the outer side of the bottom cover (22) and is fixedly connected to a connecting bent rod (27), and a clamping spring (28) is fixedly connected between the connecting bent rod (27) and the outer wall of the bottom cover (22).

9. A pulmonary nodule puncture positioning device according to claim 8, characterized in that: A plurality of hooking members (29) are fixedly connected to the inner wall of the bottom end of the bottom cover (22), and the hooking members (29) are in a "trunk" structure with a middle vertical rod and branching horizontal rods extending from both sides.

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