A magnetic anchored pulmonary nodule positioning device for thoracoscopic surgery

Abstract

The invention discloses a magnetic anchoring lung nodule positioning device for thoracoscopic surgery, which belongs to the technical field of medical devices. A targeting positioning body is placed in a puncture needle tube, and a micro-driving body and a pair of arc-shaped magnetic sealing layers are used to limit the targeting positioning body. After the puncture needle tube penetrates into the lung tissue, the targeting positioning body is pushed outward by the micro-driving body and placed at the target nodule. A pair of positioning flaps rotatably connected to the magnetic elliptical block are flipped outward under the resetting action of torsional elasticity to form a clamping space, and then a pair of extended clamping surfaces are attracted and moved to each other by magnetic attraction to complete the positioning of the target nodule. There is no need to place two positioning structures at the target nodule, and the operation is relatively simple. When performing the surgical operation, the magnetic suction rod is clamped by surgical forceps and also penetrated into the lung tissue, and gently slid on the surface of the lung tissue. The bulge on the surface of the pulmonary membrane that is attracted and lifted is the location of the target nodule, so as to facilitate the removal operation of the lifted bulge.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically to a magnetic anchoring lung nodule positioning device for thoracoscopic surgery. Background Art

[0002] As the main technical means for the diagnosis and treatment of lung nodules, thoracoscopy has the advantages of less trauma, faster recovery, and fewer surgical complications, and is widely used in clinical practice. However, for lung nodules with a subpleural depth of more than 5 mm and a diameter of less than 10 mm, they cannot be accurately located during thoracoscopy through conventional methods such as vision, finger palpation, or sliding of surgical instruments, which may lead to prolonged operation time and excessive removal of normal lung tissue, which in turn affects the efficacy of the operation, increases postoperative complications, is not conducive to the patient's recovery, and increases the possibility of conversion to thoracotomy.

[0003] In order to optimize the application of thoracoscopy in lung nodule resection, a series of lung nodule localization technologies have been explored clinically in recent years, such as puncture localization technology, image-mediated localization technology, electromagnetic navigation bronchoscope positioning, etc. However, the clamped position of the bile is prone to displacement or detachment, and the positioning effect is poor. Some of them even require a pair of positioning structures for positioning, so two puncture processes are required, which is not conducive to the patient's postoperative recovery.

[0004] To this end, we propose a magnetically anchored lung nodule positioning device for thoracoscopic surgery to effectively solve some problems existing in the prior art. Summary of the invention

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a magnetically anchored lung nodule positioning device for thoracoscopic surgery, wherein a targeting positioning body is placed in a puncture needle tube, and a micro-driver and a pair of arc-shaped magnetic sealing layers are used to limit the targeting positioning body. When the puncture needle tube penetrates the lung tissue, the targeting positioning body is pushed outward by the micro-driver and placed at the target nodule. A pair of positioning flaps connected to the magnetic elliptical block are rotated and flipped outward under the resetting action of torsional elasticity to form a clamping space, and then a pair of extended clamping surfaces are attracted and moved to each other through magnetic attraction to complete the positioning of the target nodule. There is no need to place two positioning structures at the target nodule, and the operation is relatively simple. When performing the operation, the magnetic suction rod is clamped by surgical forceps and also penetrated into the lung tissue, and gently slid on the surface of the lung tissue. The bulge on the surface of the pulmonary membrane that is attracted and lifted is the location of the target nodule, so as to facilitate the resection operation on the lifted bulge.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A magnetic anchoring lung nodule positioning device for thoracoscopic surgery comprises a puncture needle tube, a positioning pad and a magnetic suction rod, wherein the front end of the puncture needle tube is provided with a puncture needle head, the upper end of the positioning pad is provided with a sliding cavity matching the puncture needle tube, the end of the puncture needle tube close to the puncture needle head is provided with a hollow cavity, a micro-driver is installed in the hollow cavity, the driving end of the micro-driver is connected to a targeting positioning body, a pair of arc-shaped magnetic sealing layers butted against each other are rotatably connected on the side wall of one end of the hollow cavity, the outer ends of the targeting positioning bodies are against the connecting surfaces of the arc-shaped magnetic sealing layers, and the puncture needle tube is provided with a magnetic suction rod. An annular endoscope is embedded and installed on the outer end wall of the puncture needle tube, and the annular endoscope is located between the puncture needle head and the targeting positioning body. The targeting positioning body includes a magnetic elliptical block connected to the micro-driving body, and the upper and lower ends of the outer side of the magnetic elliptical block are rotatably connected with positioning flaps. The magnetic elliptical block is provided with a torsion shaft connected with the positioning flap, and a pair of opposite surfaces of the positioning flaps are magnetically driven with extended clamping surfaces. A magnetic drive cavity corresponding to the position of the extended clamping surface is opened on the inner end wall of the positioning flap, and an inner targeting magnet that is magnetically attracted to the magnetic suction rod is embedded and installed inside the magnetic elliptical block.

[0010] Furthermore, the inner end of the positioning pad is covered with a flexible layer, and both sides of the inner end of the positioning pad are provided with attachment straps, and the attachment straps are provided with an adhesive layer. When used for medical purposes, the positioning pad is attached to the outer surface of the patient's lung tissue to be observed, and the positioning pad is positioned using a pair of attachment straps.

[0011] Furthermore, magnetic surfaces are attached to the opposite end walls of the pair of arc-shaped magnetic sealing layers, and a through hole matching the driving end of the micro-driver is opened at the connection point of the pair of arc-shaped magnetic sealing layers. In the initial state, the targeting positioning body is placed in the hollow cavity of the puncture needle tube, and the outer end of the targeting positioning body is against the connection surface of the pair of arc-shaped magnetic sealing layers. The pair of magnetic surfaces enables the upper and lower arc-shaped magnetic sealing layers to be stably attached together, and cooperates with the micro-driver to limit the targeting positioning body.

[0012] Furthermore, the micro-driving body comprises an inner driving body positioned on the inner wall of the hollow cavity, a micro-pushing needle is embedded and installed at the inner end of the inner driving body, and the driving end of the micro-pushing needle is connected to the magnetic elliptical block.

[0013] Furthermore, an insertion hole matching a micro-push needle is provided at one end of the magnetic elliptical block corresponding to the position of the puncture needle tube. When used in surgery, the puncture needle tube pierces the patient's skin and penetrates into the lung tissue. After the micro-push needle is started, it can push the targeting positioning body to move outward. When the thrust is greater than the magnetic attraction force of a pair of arc-shaped magnetic sealing layers, the targeting positioning body penetrates the puncture needle tube and is pushed outward. With the assistance of observation by the annular endoscope, the targeting positioning body can be easily pushed to the target nodule of the lung tissue.

[0014] Furthermore, a flexible sleeve covering the magnetic elliptical block and the positioning flap is provided on the torsion shaft located on the upper and lower ends of the magnetic elliptical block, and both ends of the torsion shaft are provided with torsion springs connected to the magnetic elliptical block. A pair of positioning flaps are mutually docked and buckled on the outer wall of the magnetic elliptical block in the initial state, forming a cylindrical structure with the magnetic elliptical block, which makes it easy to place the spliced ​​targeting positioning body in the hollow cavity of the puncture needle tube, and a pair of arc-shaped magnetic sealing layers play a blocking and limiting role for the positioning flaps corresponding to their positions. When the targeting positioning body is separated from the puncture needle tube, under the elastic resetting action of the torsion shaft, the pair of positioning flaps are flipped outward by 90° to form a clamping space, and then the magnetic elliptical block is pushed outward by a micro-push needle, so as to realize the clamping of the target nodule by a pair of positioning flaps.

[0015] Furthermore, the magnetic drive cavity is a convex structure, the extended clamping surface is embedded in the outer end of the magnetic drive cavity and is arranged flush with the outer end wall of the positioning flap, a magnetic drive block is attached to the inner wall of the magnetic drive cavity, and the outer end of the magnetic drive block is connected to the extended clamping surface through a push rod.

[0016] Furthermore, a pair of the magnetic drive blocks are both fitted with the inner wall of the magnetic drive cavity through an adhesive surface, and a limit block for limiting the magnetic drive block is provided at the middle position of the magnetic drive cavity. In an initial state, the two extended clamping surfaces are both demagnetized, and are fitted to the side walls of the positioning flap under the action of the magnetic drive blocks, so that the positioning flap can be flipped and buckled on the outer end of the magnetic elliptical block. When it is necessary to locate the target nodule, the two magnetic drive blocks are started, and the two magnetic drive blocks are magnetically attracted to achieve the two extended clamping surfaces moving towards each other to clamp and locate the target nodule.

[0017] Furthermore, the side walls of the magnetic elliptical block, the pair of positioning flaps and the pair of extended clamping surfaces are all covered with a fiber flexible film, which is beneficial to protecting the positioning of the target.

[0018] Furthermore, an embedded endoscope is embedded in each of the pair of positioning flaps, and both the embedded endoscope and the annular endoscope are connected to the external computer imaging terminal signal.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) In this scheme, a targeting positioning body is placed in the hollow cavity of a puncture needle tube, and a micro-driver and a pair of arc-shaped magnetic sealing layers provided with magnetic suction are used to limit the targeting positioning body. When the puncture needle tube penetrates into the lung tissue, the targeting positioning body is pushed outward by the micro-driver and placed at the target nodule. After being pushed out of the puncture needle tube, the targeting positioning body rotates and a pair of positioning petals connected to the magnetic elliptical block are turned outward under the resetting action of torsional elasticity to form a clamping space, and then a pair of extended clamping surfaces are attracted and moved to each other by magnetic attraction to complete the positioning of the target nodule. There is no need to place two positioning structures at the target nodule, and there is no need to perform puncture positioning twice. The operation is relatively simple. During the operation, the magnetic suction rod is clamped by surgical forceps and also penetrated into the lung tissue, and gently slid on the surface of the lung tissue. The bulge on the surface of the pulmonary membrane that is attracted and lifted is the location of the target nodule, so that the lifted bulge can be removed.

[0022] (2) The inner end of the positioning pad is covered with a flexible layer, and both sides of the inner end of the positioning pad are provided with attachment straps, and the attachment straps are provided with an adhesive layer. When used for medical purposes, the positioning pad is attached to the outer surface of the patient's lung tissue to be observed, and the positioning pad is positioned using a pair of attachment straps.

[0023] (3) A pair of arc-shaped magnetic sealing layers are attached to opposite end walls thereof, and a through hole matching the driving end of the micro-driver is provided at the joint of the pair of arc-shaped magnetic sealing layers. In the initial state, the targeting body is placed in the hollow cavity of the puncture needle tube, and the outer end of the targeting body is against the joint surface of the pair of arc-shaped magnetic sealing layers. The pair of magnetic surfaces enables the upper and lower arc-shaped magnetic sealing layers to be stably attached together, and cooperates with the micro-driver to limit the targeting body.

[0024] (4) The micro-driving body includes an inner driving body positioned on the inner wall of the hollow cavity, a micro-push needle is embedded and installed at the inner end of the inner driving body, and the driving end of the micro-push needle is connected to the magnetic elliptical block. The end of the magnetic elliptical block corresponding to the position of the puncture needle tube is provided with an insertion hole matching the micro-push needle. When used in surgery, the puncture needle tube pierces the patient's skin and penetrates into the lung tissue. After being started, the micro-push needle can push the targeting positioning body outward. When the thrust is greater than the magnetic attraction of a pair of arc-shaped magnetic sealing layers, the targeting positioning body penetrates the puncture needle tube and is pushed outward. With the assistance of the observation of the annular endoscope, it is easy to push the targeting positioning body to the target nodule of the lung tissue.

[0025] (5) A flexible sleeve covering the magnetic elliptical block and the positioning flap is provided on the torsion shaft located at the upper and lower ends of the magnetic elliptical block. Both ends of the torsion shaft are provided with torsion springs connected to the magnetic elliptical block. A pair of positioning flaps are mutually docked and buckled on the outer wall of the magnetic elliptical block in the initial state, forming a cylindrical structure with the magnetic elliptical block, which makes it easy to place the spliced ​​target positioning body in the hollow cavity of the puncture needle tube. A pair of arc-shaped magnetic sealing layers play a blocking and limiting role for the positioning flaps corresponding to their positions. When the target positioning body is separated from the puncture needle tube, under the elastic reset action of the torsion shaft, the pair of positioning flaps are flipped outward by 90° to form a clamping space, and then the micro-push needle is used to push the magnetic elliptical block outward to achieve the clamping of the target nodule by the pair of positioning flaps.

[0026] (6) The magnetic drive cavity is a convex structure, and the extended clamping surface is embedded in the outer end of the magnetic drive cavity and is flush with the outer end wall of the positioning flap. A magnetic drive block is attached to the inner wall of the magnetic drive cavity. The outer end of the magnetic drive block is connected to the extended clamping surface through a push rod. A pair of magnetic drive blocks are both attached to the inner wall of the magnetic drive cavity through an adhesive surface. A limit block for limiting the magnetic drive block is provided at the middle position of the magnetic drive cavity. In the initial state, the two extended clamping surfaces are both demagnetized and attached to the side wall of the positioning flap under the action of the magnetic drive blocks, so that the positioning flap can be flipped and buckled on the outer end of the magnetic elliptical block. When it is necessary to locate the target nodule, the two magnetic drive blocks are started, and the two magnetic drive blocks are magnetically attracted to realize the two extended clamping surfaces moving towards each other to clamp and locate the target nodule. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective view of the present invention;

[0028] Figure 2 It is a stereoscopic view of the targeting positioning body of the present invention after being pushed out of the puncture needle tube;

[0029] Figure 3 for Figure 2 A partial schematic diagram of the junction between the targeting positioning body and the puncture needle tube;

[0030] Figure 4 It is a front schematic diagram of the present invention;

[0031] Figure 5 A schematic diagram of the structure of the invention after the extended clamping surface is pushed out of the positioning flap;

[0032] Figure 6 It is a schematic diagram of the structure of the puncture needle tube after it is separated from the targeting positioning body of the present invention.

[0033] Description of the numbers in the figure:

[0034] 1 puncture needle tube, 101 arc-shaped magnetic sealing layer, 102 internal driving body, 2 puncture needle, 3 positioning pad, 4 attachment strap, 5 targeting positioning body, 501 magnetic elliptical block, 502 positioning flap, 503 extension clamping surface, 6 micro push needle, 7 annular endoscope, 8 internal targeting attached magnet, 9 magnetic drive block, 10 embedded endoscope. DETAILED DESCRIPTION

[0035] The following will combine 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 the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Embodiment 1:

[0039] See also Figure 1 A magnetic anchoring lung nodule positioning device for thoracoscopic surgery includes a puncture needle tube 1, a positioning pad 3 and a magnetic suction rod. The front end of the puncture needle tube 1 is provided with a puncture needle 2, and the upper end of the positioning pad 3 is provided with a sliding cavity matching the puncture needle tube 1. The inner end of the positioning pad 3 is covered with a flexible layer, and both sides of the inner end of the positioning pad 3 are provided with attachment straps 4, and the attachment straps 4 are provided with an adhesive layer. When used for medical purposes, the positioning pad 3 is attached to the outer surface of the patient's lung tissue to be observed, and the positioning pad 3 is positioned using a pair of attachment straps 4. The puncture needle tube 1 is slidably connected to the positioning pad 3, which is easy for medical staff to grasp the puncture angle more accurately.

[0040] See also Figure 2-4 A hollow cavity is provided inside the end of the puncture needle tube 1 near the puncture needle 2, a micro-driver is installed in the hollow cavity, and the driving end of the micro-driver is connected to a targeting positioning body 5. A pair of arc-shaped magnetic sealing layers 101 are rotatably connected on the side wall of one end of the hollow cavity, and the outer end of the targeting positioning body 5 is against the connecting surface of the arc-shaped magnetic sealing layer 101. An annular endoscope 7 is embedded and installed on the outer end wall of the puncture needle tube 1. The annular endoscope 7 is located between the puncture needle 2 and the targeting positioning body 5, and is used for imaging the position of the target nodule. Through intelligent control, the target nodule can be more accurately positioned. The targeting positioning body 5 is pushed to the target nodule, and magnetic surfaces are attached to the opposite end walls of a pair of arc-shaped magnetic sealing layers 101, and a through hole matching the driving end of the micro-driver is opened at the connection between the pair of arc-shaped magnetic sealing layers 101. In the initial state, the targeting positioning body 5 is placed in the hollow cavity of the puncture needle tube 1, and the outer end of the targeting positioning body 5 is against the connection surface of the pair of arc-shaped magnetic sealing layers 101. The pair of magnetic surfaces enables the upper and lower arc-shaped magnetic sealing layers 101 to be stably attached together, and cooperates with the micro-driver to limit the targeting positioning body 5.

[0041] See also Figure 4-6 Specifically, the targeting positioning body 5 includes a magnetic elliptical block 501 connected to the micro-driving body, and the upper and lower ends of the outer side of the magnetic elliptical block 501 are rotatably connected with positioning flaps 502, and the magnetic elliptical block 501 is provided with a torsion shaft connected with the positioning flap 502. The micro-driving body includes an inner driving body 102 positioned on the inner wall of the hollow cavity, and the inner end of the inner driving body 102 is embedded with a micro-propelling needle 6, and the driving end of the micro-propelling needle 6 is connected to the magnetic elliptical block 501. The magnetic elliptical block 50 An insertion hole matching the micro-push needle 6 is provided at one end corresponding to the position of the puncture needle tube 1. When used in surgery, the puncture needle tube 1 pierces the patient's skin and penetrates into the lung tissue. After being started, the micro-push needle 6 can push the targeting positioning body 5 to move outward. When the thrust is greater than the magnetic attraction of a pair of arc-shaped magnetic sealing layers 101, the targeting positioning body 5 penetrates the puncture needle tube 1 and is pushed outward. With the assistance of the observation of the annular endoscope 7, it is easy to push the targeting positioning body 5 to the target nodule of the lung tissue.

[0042] Among them, it should be added that the torsion shaft located at the upper and lower ends of the attached magnetic elliptical block 501 is provided with a flexible sleeve wrapped between the attached magnetic elliptical block 501 and the positioning flap 502, and both ends of the torsion shaft are provided with a torsion spring connected to the attached magnetic elliptical block 501. A pair of positioning flaps 502 are mutually docked and buckled on the outer wall of the attached magnetic elliptical block 501 in the initial state, forming a cylindrical structure with the attached magnetic elliptical block 501, which is easy to place the spliced ​​targeting positioning body 5 on the puncture needle tube 1, a pair of arc-shaped magnetic sealing layers 101 play a blocking and limiting role for the positioning flaps 502 corresponding to their positions. When the targeting positioning body 5 is separated from the puncture needle tube 1, under the elastic resetting action of the torsion shaft, the pair of positioning flaps 502 are respectively flipped outward by 90° to form a clamping space. The pair of positioning flaps 502 are placed opposite to the target nodule position, and the micro-pushing needle 6 is used to push the magnetic elliptical block 501 outward to achieve the clamping of the target nodule by the pair of positioning flaps 502.

[0043] The opposite surfaces of a pair of positioning flaps 502 are magnetically driven to have extended clamping surfaces 503. The inner end wall of the positioning flap 502 is provided with a magnetic drive cavity corresponding to the position of the extended clamping surface 503. The magnetic drive cavity is a convex structure. The extended clamping surface 503 is embedded in the outer end of the magnetic drive cavity and is flush with the outer end wall of the positioning flap 502. A magnetic drive block 9 is attached to the inner wall of the magnetic drive cavity. The outer end of the magnetic drive block 9 is connected to the extended clamping surface 503 through a push rod. The pair of magnetic drive blocks 9 are both attached to the inner wall of the magnetic drive cavity through an adhesive surface, which is conducive to the temporary attachment of the magnetic drive block 9 in the magnetic drive cavity. A device for attaching the magnetic drive block 9 to the magnetic drive cavity is provided in the middle position of the magnetic drive cavity. The limiting block for limiting, in the initial state, both extended clamping surfaces 503 are demagnetized, and under the action of the magnetic drive block 9, they fit into the side wall of the positioning flap 502, so that the positioning flap 502 can be flipped and buckled on the outer end of the magnetic elliptical block 501. When it is necessary to locate the target nodule, the two magnetic drive blocks 9 are started, and the two magnetic drive blocks 9 are magnetically attracted. The magnetic attraction force is greater than the adhesive force of the adhesive surface, so that the two extended clamping surfaces 503 move toward each other to clamp and locate the target nodule, and the positioning of the target nodule is completed without placing two positioning structures on the target nodule. The operation is relatively simple. After the positioning is completed, the puncture needle tube 1 can be pulled out.

[0044] A pair of positioning flaps 502 and the side walls of a pair of extended clamping surfaces 503 are covered with a fiber flexible membrane, which is beneficial to protect the positioning of the target. An embedded endoscope 10 is embedded in the pair of positioning flaps 502. The embedded endoscope 10 and the annular endoscope 7 are connected to the external computer imaging terminal signal for imaging observation.

[0045] The interior of the magnetic elliptical block 501 is embedded with an internal targeting magnet 8 that is magnetically attracted to the magnetic rod. After positioning is completed, the surgical operation is performed. The magnetic rod is clamped with surgical forceps and inserted into the lung tissue. It is gently slid on the surface of the lung tissue. The magnetic rod has a magnetic effect on the internal targeting magnet 8. The bulge on the surface of the pulmonary membrane is attracted and lifted, which is the location of the target nodule, so that the lifted bulge can be removed.

[0046] The present invention places the targeting positioning body 5 in the hollow cavity of the puncture needle tube 1, and the micro-driving body and a pair of arc-shaped magnetic sealing layers 101 set by magnetic attraction limit the targeting positioning body 5. When the puncture needle tube 1 penetrates the lung tissue, the micro-driving body is used to push the targeting positioning body 5 outward and place it at the target nodule. After the targeting positioning body 5 is pushed out of the puncture needle tube 1, the pair of positioning petals 502 connected to the magnetic elliptical block 501 are rotated and turned outward under the resetting action of torsion elasticity to form a clamping space, and then a pair of extended clamps are realized through magnetic attraction. The surfaces 503 attract and move each other to complete the positioning of the target nodule. There is no need to place two positioning structures at the target nodule, and the operation is relatively simple. During the operation, surgical forceps are used to clamp the magnetic rod and penetrate into the lung tissue. It is gently slid on the surface of the lung tissue, and the bulge on the surface of the pulmonary membrane that is attracted and lifted is the location of the target nodule, so as to facilitate the removal operation of the lifted bulge. It should be added here that the size of the matching structure of the positioning device can be set according to the actual surgical needs to be suitable for the delivery operation of thoracoscopic surgery.

[0047] The components used in the present invention are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0048] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A magnetic anchoring lung nodule positioning device for thoracoscopic surgery, comprising a puncture needle tube (1), a positioning pad (3) and a magnetic suction rod, characterized in that: The front end of the puncture needle tube (1) is provided with a puncture needle head (2), the upper end of the positioning pad (3) is provided with a sliding cavity matching the puncture needle tube (1), the end of the puncture needle tube (1) close to the puncture needle head (2) is provided with a hollow cavity, a micro-driving body is installed in the hollow cavity, the driving end of the micro-driving body is connected to a targeting positioning body (5), a pair of arc-shaped magnetic sealing layers (101) arranged butt-jointed are rotatably connected on the side wall of one end of the hollow cavity, and in the initial state, the outer ends of the targeting positioning body (5) are connected to each other. A circular endoscope (7) is embedded and installed on the outer end wall of the puncture needle tube (1) at the connection surface of the arc-shaped magnetic sealing layer (101), and the circular endoscope (7) is located between the puncture needle head (2) and the targeting positioning body (5). The targeting positioning body (5) includes a magnetic elliptical block (501) connected to the micro-driving body, and the upper and lower ends of the outer side of the magnetic elliptical block (501) are rotatably connected to the positioning flap (502), and the magnetic elliptical block (501) is provided with a torsion shaft connected to the positioning flap (502); The micro-driving body comprises an inner driving body (102) positioned on the inner wall of the hollow cavity, a micro-pushing needle (6) is embedded and installed at the inner end of the inner driving body (102), and the driving end of the micro-pushing needle (6) is connected to the magnetic elliptical block (501), and the end of the magnetic elliptical block (501) corresponding to the position of the puncture needle tube (1) is provided with an insertion hole matching the micro-pushing needle (6), and both ends of the torsion shaft are sleeved with torsion springs connected to the magnetic elliptical block (501), and a pair of positioning petals (502) are mutually docked and buckled on the outer wall of the magnetic elliptical block (501) in the initial state, and form a cylindrical structure with the magnetic elliptical block (501), so that the spliced ​​targeting positioning body (5) is easy to be placed in the hollow cavity of the puncture needle tube (1), and a pair of arc-shaped magnetic sealing layers (101) are arranged on the outer wall of the magnetic elliptical block (501). The positioning flaps (502) corresponding to the positions thereof play a blocking and limiting role. When the targeting positioning body (5) is separated from the puncture needle tube (1), under the elastic resetting action of the torsion shaft, the pair of positioning flaps (502) are respectively turned outward by 90 degrees to form a clamping space. The pair of positioning flaps (502) are placed directly opposite to the position of the target nodule, and then the micro-pushing needle (6) is used to push the magnetic elliptical block (501) outward, so as to clamp the target nodule using the pair of positioning flaps (502). The opposite surfaces of the pair of positioning flaps (502) are magnetically driven to have extended clamping surfaces (503). The inner end wall of the positioning flap (502) is provided with a magnetic drive cavity corresponding to the position of the extended clamping surface (503). The inner part of the magnetic elliptical block (501) is embedded with an inner targeting magnet (8) magnetically attracted to the magnetic attraction rod.

2. The magnetic anchoring lung nodule positioning device for thoracoscopic surgery according to claim 1, characterized in that: The inner end of the positioning pad (3) is covered with a flexible layer, and both sides of the inner end of the positioning pad (3) are provided with attachment straps (4), and the attachment straps (4) are provided with an adhesive layer.

3. The magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery according to claim 1, characterized in that: Magnetic surfaces are attached to opposite end walls of the pair of arc-shaped magnetic sealing layers (101), and a through hole matching the driving end of the micro-driving body is provided at the connecting portion of the pair of arc-shaped magnetic sealing layers (101).

4. The magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery according to claim 1, characterized in that: A flexible sleeve covering the magnetic elliptical block (501) and the positioning flap (502) is provided on the torsion shaft located at the upper and lower ends of the magnetic elliptical block (501), and both ends of the torsion shaft are sleeved with torsion springs connected to the magnetic elliptical block (501).

5. The magnetic anchoring lung nodule positioning device for thoracoscopic surgery according to claim 1, characterized in that: The magnetic drive cavity is a convex structure, the extended clamping surface (503) is embedded in the outer end of the magnetic drive cavity and is arranged flush with the outer end wall of the positioning flap (502), a magnetic drive block (9) is attached to the inner wall of the magnetic drive cavity, and the outer end of the magnetic drive block (9) is connected to the extended clamping surface (503) via a push rod.

6. The magnetic anchoring lung nodule positioning device for thoracoscopic surgery according to claim 5, characterized in that: The pair of magnetic drive blocks (9) are both fitted to the inner wall of the magnetic drive cavity via an adhesive surface, and a limit block for limiting the position of the magnetic drive block (9) is provided at the middle position of the magnetic drive cavity.

7. The magnetic anchoring lung nodule positioning device for thoracoscopic surgery according to claim 6, characterized in that: The side walls of the magnetic elliptical block (501), the pair of positioning flaps (502) and the pair of extended clamping surfaces (503) are all covered with a fiber flexible film.

8. The magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery according to claim 1, characterized in that: An embedded endoscope (10) is installed in each of the pair of positioning flaps (502), and the embedded endoscope (10) and the annular endoscope (7) are both connected to an external computer imaging terminal signal.

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