阅读说明：本技术 一种用于胸腔镜手术的磁锚定肺结节定位装置 (Magnetic anchoring lung nodule positioning device for thoracoscopic surgery ) 是由 樊怿辉 陈赛华 施民新 于 2021-01-27 设计创作，主要内容包括：本发明公开了一种用于胸腔镜手术的磁锚定肺结节定位装置,属于医疗器械技术领域,通过将靶向定位体置放于穿刺针管内,微驱动体以及一对弧形磁闭封层对靶向定位体进行限位,当该穿刺针管穿入肺组织后,利用微驱动体将靶向定位体向外推出置于目标结节处,转动衔接于附磁椭形块上的一对定位瓣在扭力弹性的复位作用下向外翻转,形成夹取空间,再通过磁性吸引力实现一对延伸夹取面相互吸引移动,完成对目标结节的定位,无需向目标结节处置放两个定位结构,操作较为简便,在进行手术操作时,利用手术钳夹取磁吸杆同样穿入于肺组织,于肺组织表面轻轻滑动,肺膜表面被吸引抬高鼓包处即为目标结节所在位置,以便于对该抬高鼓包处进行切除操作。(The invention discloses a magnetic anchoring lung nodule positioning device for thoracoscopic surgery, which belongs to the technical field of medical instruments, and is characterized in that a targeted positioning body is placed in a puncture needle tube, a micro-driving body and a pair of arc-shaped magnetic closing layers limit the targeted positioning body, after the puncture needle tube penetrates into lung tissues, the targeted positioning body is pushed outwards by the micro-driving body and placed at a target nodule, a pair of positioning petals rotationally connected to an attached magnetic oval block are overturned outwards under the resetting action of torsional elasticity to form a clamping space, then a pair of extending clamping surfaces are mutually attracted and moved by magnetic attraction to complete the positioning of the target nodule, two positioning structures are not required to be placed at the target nodule, the operation is simple and convenient, when the operation is carried out, a magnetic suction rod is taken by an operation clamp and also penetrates into the lung tissues and slightly slides on the surface of the lung tissues, the surface of a lung membrane is attracted and lifted up to form a bulge position where the target nodule is located, to facilitate the cutting operation at the raised bulge.)

1. The utility model provides a magnetism anchoring lung nodule positioner for thoracoscopic surgery, includes puncture needle tubing (1) and location pad (3) and magnetism suction rod, its characterized in that: the puncture needle tube comprises a puncture needle tube body (1), a puncture needle head (2) is arranged at the front end of the puncture needle tube body (1), a sliding cavity matched with the puncture needle tube body (1) is formed in the upper end portion of a positioning pad (3), a hollow cavity is formed in one end, close to the puncture needle head (2), of the puncture needle tube body (1), a micro driving body is installed in the hollow cavity, the driving end of the micro driving body is connected with a target positioning body (5), a pair of arc-shaped magnetic sealing layers (101) which are in butt joint are rotatably connected to the side wall of one end of the hollow cavity, the outer end of the target positioning body (5) abuts against the joint face of the arc-shaped magnetic sealing layers (101), an annular sight glass (7) is embedded and installed on the outer end wall of the puncture needle tube body (1), the annular sight glass (7) is located between the puncture needle head (2) and the target positioning body (5), and the target positioning body, the upper end and the lower end of the outer side of the magnetic oval block (501) are rotatably connected with a positioning valve (502), a torsion rotating shaft connected with the positioning valve (502) is arranged on the magnetic oval block (501), the positioning valve (502) is in a pair, the opposite surface of the positioning valve (502) is in magnetic driving to be provided with an extending clamping surface (503), a magnetic driving cavity corresponding to the extending clamping surface (503) is formed in the inner end wall of the positioning valve (502), and an inner targeting magnetic body (8) magnetically attracted with a magnetic suction rod is embedded in the magnetic oval block (501).

2. A magnetic anchored pulmonary nodule locating apparatus for thoracoscopic surgery as recited in claim 1, further comprising: the utility model discloses a location pad, including location pad (3), inner end face cladding have the flexible layer, the inner both sides of location pad (3) all are equipped with attached bandage (4), be equipped with the adhesion layer on attached bandage (4).

3. A magnetic anchored pulmonary nodule locating apparatus for thoracoscopic surgery as recited in claim 1, further comprising: the opposite end walls of the pair of arc-shaped magnetic sealing layers (101) are attached with magnetic attraction surfaces, and the joint of the pair of arc-shaped magnetic sealing layers (101) is provided with a through hole matched with the driving end of the micro-driving body.

4. A magnetic anchored pulmonary nodule locating apparatus for thoracoscopic surgery as recited in claim 2, further comprising: 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 attached magnetic oval block (501).

5. A magnetic anchored pulmonary nodule locating apparatus for thoracoscopic surgery as recited in claim 3, further comprising: one end of the magnetic elliptic block (501) corresponding to the puncture needle tube (1) is provided with an inserting hole matched with the micro push needle (6).

6. A magnetic anchored pulmonary nodule locating device for thoracoscopic surgery as recited in claim 4, wherein: a torsion rotating shaft positioned on the upper end and the lower end of the magnetic oval block (501) is provided with a flexible sleeve wrapped between the magnetic oval block (501) and the positioning flap (502), and two ends of the torsion rotating shaft are both sleeved with torsion springs connected to the magnetic oval block (501).

7. A magnetic anchored pulmonary nodule locating device for thoracoscopic surgery as recited in claim 5, further comprising: the magnetic drive cavity is of a convex structure, the extension 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 valve (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 with the extension clamping surface (503) through a push rod.

8. A magnetic anchored pulmonary nodule locating device for thoracoscopic surgery as recited in claim 7, wherein: the pair of magnetic drive blocks (9) are attached to the inner wall of the magnetic drive cavity through adhesive surfaces, and a limiting block used for limiting the magnetic drive blocks (9) is arranged in the middle of the magnetic drive cavity.

9. A magnetic anchored pulmonary nodule locating apparatus for thoracoscopic surgery as recited in claim 8, wherein: the side walls of the magnetic oval block (501), the positioning petals (502) and the extending clamping surfaces (503) are coated with fiber flexible membranes.

10. A magnetic anchored pulmonary nodule locating apparatus for thoracoscopic surgery as recited in claim 1, further comprising: an embedded endoscope (10) is embedded in each pair of positioning flaps (502), and the embedded endoscope (10) and the annular endoscope (7) are in signal connection with an imaging end of an external computer.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a magnetic anchoring lung nodule positioning device for thoracoscopic surgery.

Background

The thoracoscope technology is used as a main technical means for current pulmonary nodule diagnosis and treatment, has the advantages of small wound, quick recovery and few surgical complications, and is widely applied to clinic. However, for lung nodules with a depth under the pleura of more than 5mm and a diameter of less than 10mm, the lung nodules cannot be accurately positioned in a thoracoscopy through conventional modes such as vision, finger palpation or sliding of surgical instruments, so that the operation time is prolonged, excessive ablation of normal lung tissues is caused, the curative effect of the operation is affected, postoperative complications are increased, recovery of patients is not facilitated, and the possibility of transferring the chest is increased.

In order to optimize the application of a thoracoscope to pulmonary nodule resection, a series of pulmonary nodule positioning technologies such as a puncture positioning technology, an image-mediated positioning technology, an electromagnetic navigation bronchoscope positioning technology and the like are clinically explored in recent years, the clamped position of the gallbladder is easy to displace or fall off, the positioning effect is poor, and a pair of positioning structures is required to position some gallbladders, so that two puncture processes before and after are required, and the postoperative recovery of a patient is not facilitated for the patient.

Therefore, we propose a magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery to effectively solve some problems existing in the prior art.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery, which is characterized in that a target positioning body is placed in a puncture needle tube, a micro-driving body and a pair of arc-shaped magnetic sealing layers limit the target positioning body, after the puncture needle tube penetrates into lung tissues, the target positioning body is pushed outwards by the micro-driving body and placed at a target nodule, a pair of positioning petals connected to an attached magnetic ellipsoid block are rotated outwards under the resetting action of torsional elasticity to form a clamping space, and then a pair of extending clamping surfaces are mutually attracted and moved by magnetic attraction to complete the positioning of the target nodule, two positioning structures do not need to be placed on the target nodule, the operation is simple and convenient, when the operation is performed, a magnetic suction rod is taken by an operation forceps clamp and also penetrates into the lung tissues and slightly slides on the surface of the lung tissues, the position of the lung membrane surface where the elevation bulge is attracted is the position of the target nodule, so that the ablation operation can be conveniently carried out on the position of the elevation bulge.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A magnetic anchoring pulmonary nodule positioning device for thoracoscopic surgery comprises a puncture needle tube, a positioning pad and a magnetic suction rod, wherein a puncture needle head is arranged at the front end of the puncture needle tube, a sliding cavity matched with the puncture needle tube is formed in the upper end of the positioning pad, a hollow cavity is formed in one end, close to the puncture needle head, of the puncture needle tube, a micro-driving body is installed in the hollow cavity, the driving end of the micro-driving body is connected with a target positioning body, an arc-shaped magnetic sealing layer which is in butt joint is rotatably connected onto the side wall of one end of the hollow cavity, the outer end of the target positioning body abuts against the joint face of the arc-shaped magnetic sealing layer, an annular sight glass is embedded and installed on the outer end wall of the puncture needle tube and is positioned between the puncture needle head and the target positioning body, the target positioning body comprises an attached magnetic oval block which is connected with the micro-driving body, and the upper end and the lower end of the, the magnetic-adsorption elliptic block is provided with a torsion rotating shaft connected with the positioning valve, a pair of positioning valves are magnetically driven to have an extending clamping surface on opposite surfaces, a magnetic driving cavity corresponding to the position of the extending clamping surface is arranged on the inner end wall of the positioning valve, and an inner targeting magnetic body magnetically attracted with the magnetic adsorption rod is embedded in the magnetic-adsorption elliptic block.

Further, the interior terminal surface cladding of position pad has the flexible layer, the inner both sides of position pad all are equipped with attached bandage, be equipped with the adhesion layer on the attached bandage, when carrying out medical use, with attached patient's the external surface of the health of waiting to observe lung tissue of position pad, utilize a pair of attached bandage to fix a position the position pad.

Furthermore, a pair of magnetic attraction surfaces are attached to the opposite end walls of the arc-shaped magnetic sealing layers, the joint of the arc-shaped magnetic sealing layers is provided with a through hole matched with the driving end of the micro-driving body, the target positioning body is arranged in the hollow cavity of the puncture needle tube in an initial state, the outer end of the target positioning body abuts against the joint surface of the arc-shaped magnetic sealing layers, the upper arc-shaped magnetic sealing layer and the lower arc-shaped magnetic sealing layer can be stably attached together through the pair of magnetic attraction surfaces, and the target positioning body and the micro-driving body are matched to play a limiting role in limiting the target positioning body.

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 at the inner end of the inner driving body, and the driving end of the micro pushing needle is connected to the attached magnetic oval block.

Furthermore, the one end that attaches the oval piece of magnetism and puncture needle tube position corresponding is seted up and is established the hole with miniature push pin assorted inserting, and when the operation was used, puncture needle tube impaled patient's skin and penetrated to the lung tissue, and miniature push pin can promote the outside motion of target location body after the start-up, and when thrust was greater than the magnetic attraction of a pair of arc magnetism closure layer, the target location body ran through puncture needle tube and outwards released, under the observation assistance of annular speculum, easily promoted the target knot department of target location body to the lung tissue.

Furthermore, a torsion rotating shaft positioned on the upper end and the lower end of the magnetic oval block is provided with a flexible sleeve which is coated between the magnetic oval block and the positioning valve, the two ends of the torsion rotating shaft are sleeved with torsion springs connected with the magnetic oval blocks, a pair of positioning flaps are oppositely buckled on the outer side walls of the magnetic oval blocks in an initial state, a cylindrical structure is formed by the magnetic block and the magnetic block, the spliced target positioning body is easy to be placed in the hollow cavity of the puncture needle tube, the pair of arc-shaped magnetic sealing layers play a role in blocking and limiting the positioning valve corresponding to the position of the arc-shaped magnetic sealing layers, when the target positioning body is separated from the puncture needle tube, under the elastic reset action of the torsion rotating shaft, the pair of positioning petals are respectively outwards turned for 90 degrees to form a clamping space, and then the miniature push needle is utilized to outwards push the magnetic oval block, so that the target nodule is clamped by the pair of positioning petals.

Furthermore, the magnetic drive cavity is of a convex structure, the extension clamping surface is embedded in the outer end part of the magnetic drive cavity and is flush with the outer end wall of the positioning valve, 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 with the extension clamping surface through a push rod.

Further, it is a pair of the piece is all laminated mutually through the inner wall in adhesive surface and magnetism drive chamber to magnetism drive the piece, the middle part position department in magnetism drive chamber is equipped with and is used for driving the piece to magnetism and carries out spacing stopper, under initial condition, two extensions press from both sides and get the equal magnetic break of face, in the lateral wall of laminating in the location lamella under the effect of magnetism drive piece to in the location lamella can the upset buckle be located and attach magnetism ellipse block outer end, when needs fix a position the target nodule, start two magnetism and drive the piece, two magnetism drive the piece magnetism and inhale the setting, realize two extensions and press from both sides the face relative motion and press from both sides the location to the target nodule.

Furthermore, the side walls of the magnetic oval block, the positioning petals and the extending clamping surfaces are coated with fiber flexible membranes, so that the positioning of the target is protected.

Furthermore, embedded specula are embedded in the pair of positioning flaps, and the embedded specula and the annular specula are in signal connection with an imaging end of an external computer.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme is that a target positioning body is placed in a hollow cavity of a puncture needle tube, the micro driving body and a pair of magnetically attracted arc-shaped magnetic sealing layers limit the target positioning body, after the puncture needle tube penetrates into lung tissues, the micro driving body is used for pushing the target positioning body outwards to be placed at a target nodule, after the target positioning body is pushed out of the puncture needle tube, a pair of positioning petals rotatably connected to an attached magnetic oval block outwards overturn under the resetting action of torsional elasticity to form a clamping space, then a pair of extending clamping surfaces are mutually attracted and moved through magnetic attraction, the target nodule is positioned, two positioning structures do not need to be placed on the target nodule, two times of puncture positioning are not needed, the operation is simple and convenient, when the operation is carried out, a magnetic suction rod is taken by an operation clamp and also penetrates into the lung tissues, the magnetic suction rod slides slightly on the surface of the lung tissues, the position where the pulmonary membrane surface is attracted and lifted to be the position where the target nodule is, to facilitate the cutting operation at the raised bulge.

(2) The interior terminal surface cladding of position pad has the flexible layer, and the inner both sides of position pad all are equipped with attached bandage, are equipped with the adhesion layer on the attached bandage, when carrying out medical use, with attached patient's the healthy surface of waiting to observe lung tissue of position pad, utilize a pair of attached bandage to fix a position the position pad.

(3) The opposite end walls of the pair of arc-shaped magnetic closed sealing layers are attached with magnetic attraction surfaces, the joint of the pair of arc-shaped magnetic closed sealing layers is provided with a through hole matched with the driving end of the micro-driving body, the target positioning body is arranged in the hollow cavity of the puncture needle tube in an initial state, the outer end of the target positioning body is abutted against the joint surface of the pair of arc-shaped magnetic closed sealing layers, the pair of magnetic attraction surfaces enable the upper arc-shaped magnetic closed sealing layer and the lower arc-shaped magnetic closed sealing layer to be stably attached together, and the magnetic attraction surfaces and the micro-driving body are matched to play a limiting role in.

(4) 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, the driving end of the micro pushing needle is connected to an attached magnetic oval block, one end, corresponding to the position of the puncture needle tube, of the attached magnetic oval block is provided with an insertion hole matched with the micro pushing needle, when the micro pushing needle is used in an operation, the puncture needle tube pierces the skin of a patient and penetrates into lung tissue, the micro pushing needle can push the target positioning body to move outwards after being started, when the pushing force is larger than the magnetic attraction force of a pair of arc-shaped magnetic closed layers, the target positioning body penetrates through the puncture needle tube and is pushed outwards, and under the assistance of observation of the annular endoscope, the target positioning body is easy to push to a.

(5) The torsion rotating shaft positioned on the upper end and the lower end of the magnetic oval block is provided with a flexible sleeve which is wrapped between the magnetic oval block and the positioning valve, two ends of the torsion rotating shaft are respectively sleeved with a torsion spring which is connected to the magnetic oval block, the pair of positioning valves are mutually oppositely buckled on the outer side wall of the magnetic oval block in an initial state and form a cylindrical structure with the magnetic oval block, the spliced target positioning body is easily placed in a hollow cavity of the puncture needle tube, the pair of arc-shaped magnetic sealing layers play a role in stopping and limiting the positioning valve corresponding to the position of the positioning valves, after the target positioning body is separated from the puncture needle tube, the pair of positioning valves are respectively overturned outwards by 90 degrees to form a clamping space under the elastic resetting action of the torsion rotating shaft, and then the micro pushing needle is used for outwards pushing the magnetic oval block, so that the target nodules are clamped by the pair of positioning valves.

(6) The magnetism drive chamber is convex structure, extend to press from both sides the face of getting and inlay the outer tip of locating the magnetism drive chamber and flush the setting with the outer end wall of location lamella, the inner wall in magnetism drive chamber is pasted with magnetism and is driven the piece, the outer end that magnetism driven the piece is passed through the catch bar and is pressed from both sides the face with extending and get and link up mutually, a pair of magnetism drives the piece and all laminates mutually through the inner wall in adhesion face and magnetism drive chamber, the middle part position department in magnetism drive chamber is equipped with and is used for carrying out spacing stopper to magnetism and drives the piece, under initial condition, two extend to press from both sides and get the face and all break magnetism, laminate in the lateral wall of location lamella under the effect of magnetism drives the piece, so that the location lamella can overturn and detain and locate and attach magnetism ellipse block outer end, when needs fix a position target nodule, start two magnetism and drive the piece, two magnetism are driven the piece magnetism and are inhaled.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the targeting positioner of the present invention after being pushed out of the puncture needle cannula;

FIG. 3 is a schematic view of a portion of the target site of FIG. 2 at the junction with the puncture needle tube;

FIG. 4 is a schematic front view of the present invention;

FIG. 5 is a schematic view of the extended grasping face of the present invention after being pushed out of the positioning flap;

FIG. 6 is a schematic structural view of the puncture needle tube of the present invention after being detached from the target positioning body.

The reference numbers in the figures illustrate:

the puncture needle comprises a puncture needle tube 1, an arc magnetic sealing layer 101, an inner driving body 102, a puncture needle head 2, a positioning pad 3, an attached bandage 4, a targeted positioning body 5, a magnetic oval block 501, a positioning flap 502, an extended clamping surface 503, a miniature push needle 6, an annular endoscope 7, a targeted attached magnet 8, a magnetic driving block 9 and an embedded endoscope 10.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

please refer to fig. 1, a magnetism anchoring lung nodule positioner for thoracoscopic surgery, inhale the pole including puncture needle tubing 1 and position pad 3 and magnetism, the front end of puncture needle tubing 1 is equipped with puncture needle 2, the upper end of position pad 3 has been seted up with 1 assorted slip chamber of puncture needle tubing, the interior terminal surface cladding of position pad 3 has the flexible layer, the inner both sides of position pad 3 all are equipped with attached bandage 4, be equipped with the adhesion layer on the attached bandage 4, when carrying out medical use, with the attached lung tissue's of waiting of patient body surface of position pad 3, utilize a pair of attached bandage 4 to fix a position pad 3, puncture needle tubing 1 slides and links up on position pad 3, easily medical personnel's more accurate assurance puncture angle.

Referring to fig. 2-4, a hollow cavity is formed inside one end of the puncture needle tube 1 close to the puncture needle head 2, a micro-driving body is installed in the hollow cavity, a target positioning body 5 is connected to a driving end of the micro-driving body, a pair of arc-shaped magnetic sealing layers 101 which are in butt joint are rotatably connected to a side wall of one end of the hollow cavity, an outer end of the target positioning body 5 abuts against a joint face of the arc-shaped magnetic sealing layers 101, an annular sight glass 7 is embedded and installed on an outer end wall of the puncture needle tube 1, the annular sight glass 7 is located between the puncture needle head 2 and the target positioning body 5 and is used for image capture of a target nodule position, the target positioning body 5 is pushed to the target nodule position more accurately through intelligent control, magnetic attraction surfaces are attached to opposite end walls of the pair of arc-shaped magnetic sealing layers 101, and a through hole matched with the driving end of the micro-, in an initial state, the target positioning body 5 is arranged in the hollow cavity of the puncture needle tube 1, the outer end of the target positioning body 5 is abutted against the joint surfaces of the pair of arc-shaped magnetic closing layers 101, the pair of magnetic attraction surfaces enables the upper arc-shaped magnetic closing layer 101 and the lower arc-shaped magnetic closing layer 101 to be stably attached together, and the target positioning body 5 is limited by the matching of the target positioning body and the micro-driving body.

Referring to fig. 4-6, specifically, the target positioning body 5 includes an elliptical magnetic block 501 connected to the micro-driving body, the upper and lower ends of the outer side of the elliptical magnetic block 501 are rotatably connected to a positioning flap 502, the elliptical magnetic block 501 is provided with a torsion shaft connected to the positioning flap 502, the micro-driving body includes an inner driving body 102 positioned on the inner wall of the hollow cavity, the inner end of the inner driving body 102 is embedded with a micro-pushing needle 6, the driving end of the micro-pushing needle 6 is connected to the elliptical magnetic block 501, one end of the elliptical magnetic block 501 corresponding to the puncture needle tube 1 is provided with an insertion hole matching with the micro-pushing needle 6, when the micro-pushing needle 6 is activated, the puncture needle tube 1 punctures the skin of the patient and penetrates into the lung tissue, the target positioning body 5 can be pushed to move outward, when the pushing force is greater than the magnetic force of the pair of arc magnetic sealing layers 101, the target positioning body 5 penetrates through the puncture needle tube 1 and is pushed out, and the target positioning body 5 is easy to push to a target nodule of lung tissue under the observation assistance of the annular sight glass 7.

Wherein, what needs to be supplemented is that a flexible sleeve which is wrapped between the magnetic oval block 501 and the positioning valve 502 is arranged on a torsion rotating shaft which is positioned on the upper end and the lower end of the magnetic oval block 501, a torsion spring which is connected with the magnetic oval block 501 is sleeved on both ends of the torsion rotating shaft, a pair of positioning valves 502 are mutually and oppositely buckled on the outer side wall of the magnetic oval block 501 in an initial state, a cylindrical structure is formed with the magnetic oval block 501, the spliced target positioning body 5 is easy to be placed in a hollow cavity of the puncture needle tube 1, a pair of arc-shaped magnetic sealing layers 101 play a role in stopping and limiting the positioning valve 502 which corresponds to the position of the arc-shaped magnetic sealing layers, after the target positioning body 5 is separated from the puncture needle tube 1, under the elastic reset action of the torsion rotating shaft, the pair of positioning valves 502 are respectively turned outwards by 90 degrees to form a clamping space, the pair of positioning valves 502 are opposite to the position of a target nodule, and then the micro pushing needle 6, the target nodule is clamped using a pair of locating petals 502.

The opposite surfaces of the positioning petals 502 are magnetically driven to be provided with extending clamping surfaces 503, the inner end walls of the positioning petals 502 are provided with magnetic driving cavities corresponding to the positions of the extending clamping surfaces 503, the magnetic driving cavities are of convex structures, the extending clamping surfaces 503 are embedded at the outer end parts of the magnetic driving cavities and are flush with the outer end walls of the positioning petals 502, the inner walls of the magnetic driving cavities are attached with magnetic driving blocks 9, the outer ends of the magnetic driving blocks 9 are connected with the extending clamping surfaces 503 through push rods, the pair of magnetic driving blocks 9 are attached to the inner walls of the magnetic driving cavities through adhesive surfaces, the magnetic driving blocks 9 are temporarily attached to the magnetic driving cavities, the middle positions of the magnetic driving cavities are provided with limit blocks for limiting the magnetic driving blocks 9, in the initial state, the two extending clamping surfaces 503 are disconnected in magnetic state and attached to the side walls of the positioning petals 502 under the action of the magnetic driving blocks 9, so that the positioning petals 502 can be overturned and fastened to be arranged at the outer ends of the magnetic driving blocks 501, when needs are fixed a position the target nodule, start two magnetism and drive piece 9, two magnetism drive piece 9 magnetism and inhale the setting, and magnetism suction force is greater than the adhesive force of adhesive surface, realizes that two extensions press from both sides get the face 503 and move in opposite directions and press from both sides the target nodule and get the location, accomplishes the location to the target nodule, need not to deal with to the target nodule and put two location structures, and it is comparatively simple and convenient to operate, after the location is accomplished, outwards extract puncture needle tubing 1 can.

The side walls of the pair of positioning flaps 502 and the pair of extending clamping surfaces 503 are coated with fiber flexible membranes, which is beneficial to protecting the positioning of a target, the pair of positioning flaps 502 are embedded with the embedded endoscope 10, and the embedded endoscope 10 and the annular endoscope 7 are connected with the imaging end of an external computer through signals, so as to facilitate imaging observation.

The interior of attaching the oval piece 501 of magnetism inlays to establish and installs the interior target and attaches magnet 8 that sets up with magnetism suction rod looks magnetism, fixes a position the back, just carries out the operation, utilizes the operation forceps holder to get the magnetism suction rod and penetrate in lung tissue equally, slides gently in lung tissue surface, and the magnetism suction rod plays the magnetic attraction effect to interior target and attaches magnet 8, and the tympanic bulla department is just the target nodule position for the tympanic bulla department is raised in the attraction on lung membrane surface to in should raising the tympanic bulla department and excise the operation.

The invention positions a target positioning body 5 in a hollow cavity of a puncture needle tube 1, a micro-driving body and a pair of magnetically attracted arc-shaped magnetic closed sealing layers 101 limit the target positioning body 5, when the puncture needle tube 1 penetrates lung tissues, the micro-driving body is used for pushing the target positioning body 5 outwards to be positioned at a target nodule, after the target positioning body 5 is pushed out of the puncture needle tube 1, a pair of positioning petals 502 connected to an attached magnetic oval block 501 are rotated and overturned outwards under the resetting action of torsional elasticity to form a clamping space, and then a pair of extending clamping surfaces 503 are mutually attracted and moved through magnetic attraction to complete the positioning of the target nodule, two positioning structures are not required to be positioned on the target nodule, the operation is simple and convenient, when the operation is carried out, a magnetic suction rod is taken by an operation forceps clamp and also penetrates into the lung tissues, the magnetic suction rod slides slightly on the surface of the lung tissues, the surface of a lung membrane is attracted and lifted to be the position of the target nodule, so as to raise the excision operation of swell department, need supplement here that the specification size of this positioner's cooperation structure can be set for according to actual operation needs to be applicable to the operation of falling into production of thoracoscopy.

The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.