CN202637680U - Needling instrument for puncturing and positioning pulmonary nodule - Google Patents

Abstract

The utility model discloses a needling instrument for puncturing and positioning pulmonary nodule, comprising a pipe core needle and a sleeve, wherein the sleeve is a hollow cavity body with openings at the two ends; one end of the pipe core needle is provided with a hook-shaped structure which is bound in the sleeve to realize shrinkage, and the other end of the pipe core needle extends out of the sleeve; and the pipe core needle is provided with a thickening part which is positioned in the sleeve. The needling instrument provided by the utility model has the advantages that the positioning is accurate and the falling is not easy; due to the structure improvement, the pneumothorax is not easily caused in the operation process, necessary time is provided for an operator to position the focus accurately, the adding of secondary injury of the patient due to repeated puncture is avoided; and simultaneously, due to the tail-part fixing device of the core needle, the risk of secondary injury to the patient is also eliminated.

Description

A kind of needle set for pulmonary tuberosity puncture location

Technical field

This utility model relates to a kind of puncture positioning field, especially relates to a kind of for the needle set of pulmonary tuberosity puncture location and the method for puncture location.

Background technology

About the nodular diagnosis and treatment of lung, since the mid-90 in 20th century, domestic and foreign literature in succession reported before the multiple art and (or) method of focus location in the art, as inject methylene blue, iodized oil and the method for using ultrasound location in art, but these methods have its shortcoming: the injection methylene blue may cause pleura and thoracic cavity inner dye painted in the pulmonary parenchyma around the tuberosity, and makes the patient of VATS (VATS) be difficult to the concrete lesions position of identification; CT guides the method for the contrast medium location such as hemostasis iodized oil before the art, has too the shortcoming of contrast medium diffusion, and needs operating room to possess instant CT examination equipment, and process is more loaded down with trivial details; Localization by ultrasonic; because its resolution is lower; be difficult to observe well inferior centimetre tuberosity; lung ground glass shadow (GGO) focus particularly; intraoperative ultrasound is had relatively high expectations for operator's level simultaneously, needs the personnel operation through professional training, and localization by ultrasonic needs checked lung to subside could locate well fully; and that post-operative recovery can occur in patient that lung subsides fully usually is bad, and these factors have all limited the application of localization by ultrasonic.

Lower buckle steel wire (Hookwire) the art prelocalization of CT guiding is a kind of safe and effective art prelocalization method.To be applied to breast localization the earliest, by the trocar of outside and can form by automatically rebounding open metal hook with metal wire.Such as open day: 2011-10-26 day, application number: 201120045915.6, a kind of puncture needle for breast operation of introduction.Begin the nineties in 20th century, development along with VATS, abroad begin gradually the buckle steel wire is used for the pulmonary lesion location, because it has stronger grappling ability, atomic little wound and good suppleness, adopt the buckle steel wire positioning action under the CT guiding simple, position success rate is high, and the bibliographical information success rate is more than 96%.

Yet, because the steel wire location belongs to the wound location is arranged, add the special anatomical structure of lung tissue, this needle set that design for mammary gland tumor puncture location is used for pulmonary's tuberosity puncture when locating, the part complication is inevitable, be mainly in a small amount the displacement that easily comes off of pneumothorax and positioning needle, reported literature pneumothorax incidence rate is 7.5%-48%, and the positioning wire displacement incidence rate that comes off is 4-22%.

Studies show that by analysis and in a large number, this needle set that designs for mammary gland tumor puncture location has following defective when being used for pulmonary tuberosity puncture location:

Though 1, existing needle set nook closing member front end has crook, yet because lung tissue can guarantee that pin is not affected by external force after being different from mammary gland tissue puncture location, behind the puncture location, have respiratory movement in the operation set-up procedure, the position of grappling easily comes off for the lung tuberosity, so the positioning needle front end crook requirement for lung tissue is higher, need to overcome because the anchor station that respiratory movement causes changes.

2, the needle set that designs for mammary gland tumor puncture location easily causes pneumothorax when puncturing pulmonary's tuberosity, cause operation hastily, affect operating effect, this is because pulmonary's anatomical features causes, when puncture needle penetrates thoracic wall and not yet enters lung tissue, because this puncture needle head end has the barb-like design, add that nook closing member and needle tubing need to relatively move, just causing unavoidably has gas leakage between needle tubing and the nook closing member, all might make outside air enter pleural space when operation, thereby cause pneumothorax.So just require operation necessary skilled rapidly.The location is inaccurate but fast operating is easy to cause focus, if repeatedly puncture can increase patient trauma.

3, mammary gland tumor puncture localization needle tool length only has 7cm, and the patient chest wall thickness generally has 3-5cm, and the thick person of thoracic wall can reach 7cm, causes puncture needle too short, and can't puncture in some cases reaches the target location.

4, the operating process of existing puncture needle, usually after puncture is finished, rebuild image behind the location, the steel wire (nook closing member) that then will remain in the skin outside is close to thoracic wall with sterile scissors and is cut off, cover the wrapping wound surface with sterile gauze, then send operating room to prepare VATS together with CT image reconstruction.Yet because the characteristics of pulmonary, nook closing member is easy to be brought in the thoracic cavity when the respiratory movement lung tissue moves up and down, cause sometimes nook closing member to lose in thoracic wall or in the lung tissue, as not finding nook closing member may become in the residual body of foreign body, and find nook closing member can waste a lot of times in the art, increase patient's operation risk.Although the lump localised puncture at a lot of positions can use the B ultrasonic positioning guidance system in the real work, for pulmonary, owing to stopping of rib and so that B ultrasonic can not be used for the inspection of pulmonary's tuberosity.

The utility model content

For solving the problems of the technologies described above, it is a kind of for the needle set of pulmonary tuberosity puncture location and the method for puncture location that this utility model provides.

For realizing above-mentioned utility model purpose, technical scheme provided by the utility model is: a kind of needle set for pulmonary tuberosity puncture location, comprise stylet and sleeve pipe, described sleeve pipe is the hollow cavity of both ends open, described stylet one end is provided with hook formation, and described hook formation is strapped in to be realized in the sleeve pipe shrinking, and the other end of stylet stretches out sleeve pipe, and stylet is provided with the thick section that increases, and describedly increases thick section and is positioned at sleeve pipe.

It is further, described that to increase thick section be two.

Further, described hook formation is the double hook structure.

Further, also include the stylophore of end sealing and the stylophore medicated cap that adapts with stylophore, described stylophore medicated cap cooperates the opening that is installed in stylophore, be provided with the first set pore that passes through for sleeve pipe on the described stylophore medicated cap, one end of described sleeve pipe constraint hook formation is arranged in the stylophore, and the other end stretches out the stylophore medicated cap.

Further, the end that described stylophore medicated cap does not contact with stylophore is connected with needle handle, and described needle handle center is provided with the second collar aperture, and described sleeve pipe inserts to be realized affixedly in the collar aperture, and described stylet stretches out from the other end of needle handle.

Further, the end that described needle handle stretches out stylet is provided with tapered opening, and described the second collar aperture and tapered opening seamlessly transit.

Further, also comprise the stylet fixture, described stylet fixture comprises sleeve, fixed part and block, described fixed part is the secondary column structure that is comprised of the first cylinder and the second cylinder, described the second body diameter is provided with two apertures greater than the first body diameter on the described secondary column structure, described two apertures run through two end faces of secondary column structure, described sleeve set is on the first column structure, and above-mentioned block covers on the second column structure.

Further, described stylet is stainless steel silk or titanium silk.

Further, described stylet length is 18cm-25cm, and diameter is 0.6mm-1.0mm, and the sleeve pipe external diameter is 0.9mm-1.2mm, and length is 10cm-15cm.

Further, described stylet length is 22cm, and diameter is 0.8mm, and the sleeve pipe external diameter is 1.2mm, and length is 12cm.

Adopt technique scheme, the beneficial effect that this utility model can be realized has:

1. the stylet front end adopts hook formation, especially double hook structure, can make the location more definite, and the positioning needle of avoiding Repiration to cause comes off or displacement.

2. be provided with the thick section that increases on the stylet, its diameter plays certain iris action near casing inner diameter to gas, slows down the gas leakage between sleeve pipe and the stylet, avoids producing pneumothorax.

3. this utility model has increased the length of stylet and sleeve pipe according to the feature of pulmonary, makes needle set length can better satisfy the needs of pulmonary's tuberosity puncture operation.

4. this utility model also is provided with a stylet fixture, finish the wait intra-operative in puncture, can better guarantee the position of stylet, displacement or stylet can not occur slip into the thoracic cavity, well process the stylet termination by sleeve, avoided stylet termination accidental puncture surrounding skin tissue.

Description of drawings

Fig. 1 is this utility model cutaway view;

Fig. 2 is A section partial enlarged drawing among Fig. 1;

Fig. 3 is this utility model STRUCTURE DECOMPOSITION figure;

Fig. 4 is that this utility model is looked up the perspective view of looking;

Fig. 5 is this utility model overall structure figure;

Fig. 6 is this utility model one embodiment schematic diagram;

Fig. 7 is several hook formation schematic diagrams;

Fig. 8 is stylet fixture structure schematic diagram;

Fig. 9 is the another embodiment schematic diagram of this utility model;

Figure 10 is the another embodiment schematic diagram of this utility model.

Wherein: 1 stylet, 2 sleeve pipes, 11 hook formations, 12 increase thick section, 3 stylophores, 4 stylophore medicated caps, 41 first set pores, 5 needle handles, 51 second collar aperture, 52 tapered openings, 6 stylet fixtures, 61 sleeves, 62 fixed parts, 621 first cylinders, 622 second cylinders, 623 apertures, 63 blocks.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining this utility model, and be not used in restriction this utility model.

Fig. 1 is this utility model cutaway view, Fig. 2 is Figure 1A section partial enlarged drawing, such as Fig. 1, shown in 2, a kind of needle set for pulmonary tuberosity puncture location is disclosed, comprise stylet 1 and sleeve pipe 2, described sleeve pipe 2 is the hollow cavity of both ends open, described stylet 1 one ends are provided with hook formation 11, as shown in Figure 2, under the unused state, hook formation 11 is bound in the sleeve pipe 1, be in contraction state, the other end of stylet 1 stretches out sleeve pipe 2, and the part that stylet 1 is in the sleeve pipe 2 is provided with the thick section 12 that increases, the described diameter of thick section 12 that increases is close to the internal diameter of sleeve pipe 1, and increase thick section 12 and with hook formation 11 certain distance is arranged, increase thick section 12 one or more can be set, experiment shows, arrange two and be optimum state, also the latter half of stylet 1 all can be set as one and increase thick section 12, very strict but this setup requires the diameter that increases thick section 12, otherwise may cause that frictional force is excessive between stylet 1 and the sleeve pipe 2, and bring difficulty for the puncture location, be unfavorable for the smooth operation that punctures and locate.

This utility model also provides stylophore 3 and the stylophore medicated cap 4 that is used for protecting stylet 1 and sleeve pipe 2; described stylophore medicated cap 4 cooperates the opening that is installed in stylophore 3; be provided with the first set pore 41 that passes through for sleeve pipe on the described stylophore medicated cap 4; one end of described sleeve pipe 2 constraint hook formations 11 is arranged in the stylophore 3, and the other end stretches out stylophore medicated cap 4.In this utility model, some sleeve pipe stretches out outside stylophore medicated cap 4, and the length of stylet 1 is far longer than sleeve pipe 2 length, and therefore, stylet 1 is drawn from sleeve pipe 2, also stretches out outside the stylophore medicated cap 4.

This utility model also is provided with needle handle 5, Handheld Division when being used as the puncture positioning operation, one end of needle handle 5 is connected with stylophore medicated cap 4, the junction is provided with the second collar aperture 51, the sleeve pipe 2 that stretches out stylophore medicated cap 4 inserts in the second collar aperture 51, realize the fixing of needle handle 5 and sleeve pipe, because stylet is longer, therefore on needle handle, be provided with equally the passage that passes for stylet 1, this passage can be arranged to tapered opening 52, the little oral area of this tapered opening is connected with the second collar aperture, and for seamlessly transitting, stylet 1 stretches out from this tapered opening 52.

Fig. 3 is this utility model STRUCTURE DECOMPOSITION figure, Fig. 4 is birds-eye perspective of the present utility model, such as Fig. 3, shown in 4, needle set for pulmonary tuberosity puncture location provided by the utility model, parts comprise stylet 1, sleeve pipe 2, stylophore 3, stylophore medicated cap 4, needle handle 5, stylet fixture 6, wherein the stylet fixture is comprised of three parts, be respectively sleeve 61, fixed part 62 and block 63, be disposed with hook formation 11 and two on the stylet 1 and increase thick section 12, stylet 1 plug-in mounting is entered in the sleeve pipe 2, hook formation 11 is contracted in the sleeve pipe 2, the sleeve pipe 2 of stylet 1 of will packing into has an end of hook formation to put into stylophore 3, part sleeve pipe 2 and stylet 1 expose outside stylophore 3, be provided with first set pore 41 on the stylophore medicated cap, stylophore medicated cap 4 is passed respectively exposed outside stylet 1 and sleeve pipe 2, wherein, first set pore 41(on the stylophore medicated cap 4 is as shown in Figure 3) the aperture match with the external diameter size of sleeve pipe 2, can play the effect of grip sleeve 2, then stylophore medicated cap 4 is fastened on the stylophore 3, form an overall structure, still old part sleeve pipe 2 and stylet 1 expose in stylophore medicated cap outside at this moment; Then the Handheld Division is installed, the second collar aperture 51 that needle handle 5 centers arrange is passed respectively stylet 1 and the sleeve pipe 2 that exposes in stylophore medicated cap outside, the aperture of this second collar aperture 51 cooperates with the sleeve pipe external diameter, sleeve pipe 2 and needle handle are fixed together, and can arrange with the contacted position of stylophore medicated cap at needle handle and to contact groove, both are connected closely, for example, needle handle 5 front ends can be arranged to pyramidal structure, arrange on the stylophore medicated cap 4 match with pyramidal structure groove shape structure, it is to be noted, the second collar aperture 51 can run through needle handle, after the second collar aperture, can be arranged to the shape of tapered opening 52, as long as guaranteeing tapered opening and the second collar aperture seamlessly transits, the purpose that this tapered opening 52 is set is when puncturing the location, to make things convenient for the move operation of stylet 1, at this moment, basic installation.The perspective view of observing from needle handle one end as shown in Figure 4.Stylet fixed structure 6(shown in Fig. 3 comprises sleeve 61, the fixed part 62 among Fig. 3 and blocks a shot 63), after the groundwork of locating for puncturing was finished, the stylet that fixedly is exposed to the skin outside was used.

Fig. 5 is overall appearance structure chart of the present utility model; as shown in Figure 5; stylophore medicated cap 4 closely is connected with stylophore 3; form a cavity; guard bit sleeve pipe 2 and stylet 1 in the inner; remaining sleeve pipe is fixed and protects through needle handle, exposes the stylet in the needle handle outside, is used for realizing the relative displacement of stylet 1 and sleeve pipe when positioning operation.

In order to cooperate stereotaxic localized puncture, can design the approximately square silica gel material plate of 6cm * 6cm of a block size, thickness 2mm, silica gel plate simultaneously is with toughness, the sealed paper of adhesive faces covers during initial condition, during use sealed paper is removed, and silica gel plate is affixed on the thoracic wall predetermined position.Silica gel plate is divided into nine five equilibriums by two horizontal two vertical lines, used horizontal line and vertical line all use the material coating that can develop under the x-ray to make, be attached to respective area according to the estimated position silica gel plate of CT before the art during operation, vertically insert silica gel plate with one piece of blunt nosed pin that is about 2cm, CT scan once, determine concrete puncture entry point and inserting needle direction etc. by the CT system in conjunction with the three-dimensional positioning function of location-plate, can improve puncture success rate, and reduce in order to adjust the puncture direction the repeatedly ray of CT scan impact.

Fig. 6 is this utility model one embodiment schematic diagram, as shown in Figure 6, at first carries out routine disinfection, and the patient is carried out local anesthesia, then under the guiding of CT image, adopts above-mentioned method to carry out percutaneous through lung puncture.Specific practice is; first stylophore medicated cap 4 and stylophore 3 are separated; sleeve pipe 2 is transferred to from the stylophore 3 that shields; and remove stylophore medicated cap 4; hold needle handle 5; the second collar aperture 51 and sleeve pipe 2 close contacts on the needle handle 5; fixedly needle handle 5 and sleeve pipe 2; there is an end of hook formation 11 to puncture into the target focus pipe box 2, repeats CT scan, if CT shows that stylet successfully is punctured to focus; again stylet 1 is advanced or fixedly retreats when stylet 1 sleeve pipe 2; at this moment, stylet forward or move behind the sleeve pipe and make hook formation 11 shift out sleeve pipe, the hook formation 11 of stylet 1 front end breaks away from sleeve pipes 2 and opens rapidly; form barb; at this moment gently draw stylet to have resistance sense, repeat CT scan, scanning is determined after stylet 1 grappling target focus and hook formation are opened well needle handle and needle tubing to be extracted again.Observe simultaneously the complication situation, such as pneumothorax and hemorrhage etc.Rebuild immediately image behind the location after operation is finished, the stylet that then will remain in the skin outside is fixed, and covers the wrapping wound surface with sterile gauze, and special entourage send operating room to prepare thoracoscopic operation (VATS) together with the CT image of rebuilding.

Fig. 7 is several hook formation schematic diagrams, and as shown in Figure 7, hook formation is generally selected the double hook structure, certainly, can also select three or above many hook structures.The employing hook formation positions, and is more definite, can guarantee not to be subjected to the external force of respiratory movement etc. to affect; Its double hook structure also can have various ways, and three kinds of structures as shown in Figure 7 are forms of relatively commonly using.

Fig. 8 is stylet fixture structure schematic diagram, as shown in Figure 8, described stylet fixture comprises sleeve 61, fixed part 62 and block 63, described fixed part 62 is the secondary column structure that is comprised of the first cylinder 621 and the second cylinder 622, described the second cylinder 622 diameters are greater than the first cylinder 621 diameters, be provided with two apertures 623 on the described secondary column structure, described two apertures 623 run through two end faces of secondary column structure, described sleeve 61 is sleeved on the first column structure, above-mentioned block 63 covers on the second column structure, cover and to realize by the mode that screws, namely at the second cylinder tap is set, at block 63 inwall settings and the second cylinder tap that stricture of vagina matches of tightening up a screw, during use, block is screwed on the second cylinder gets final product, can also adopt the form of buckle, at the second cylinder a plurality of projections are set, in the block relevant position groove corresponding with projection is set, during use, press down block and can realize covering.

Fig. 9, Figure 10 is the another embodiment schematic diagram of this utility model, such as Fig. 9, shown in Figure 10, when positioning puncture, localised puncture is finished, after extracting sleeve pipe 2 and needle handle 5 out, can leave part stylet 1 in the skin outside, general way is the stylet that remains in the skin outside to be close to thoracic wall with sterile scissors cut off, cover the wrapping wound surface with sterile gauze again, then send operating room to prepare VATS together with CT image reconstruction.Yet because the characteristics of pulmonary, stylet is easy to be brought in the thoracic cavity when the respiratory movement lung tissue moves up and down, not only cause difficulty to subsequent procedures, and be easy to cause secondary to hinder to patient, and may injure surrounding skin owing to respiratory movement drives the stylet motion.Stylet fixture provided by the utility model is used for fixing the stylet that exposes skin, its operation is as follows, at first stylet is passed sleeve 61, in an aperture of the end face of the first cylinder, penetrate again, pass from the corresponding aperture of the second cylinder end face, then bending, another aperture from the second cylinder end face penetrates again, pass from another aperture of the first cylinder, if sleeve 61 length are arranged to be shorter than the first cylinder, cut off redundance after then stylet being derived, remaining a bit of bending to the first cylinder outside (as shown in Figure 9), the cover upper bush is fixed; If sleeve 61 length are greater than being lower than cylinder, then directly cut off unnecessary stylet, the cover upper bush is so that the backshank of stylet (as shown in figure 10) between sleeve and skin, so both fix the stylet afterbody, and avoided again the stylet afterbody that patient's body surface is caused unexpected injury.

Needle set for pulmonary tuberosity puncture location provided by the utility model, stylet and sleeve pipe preferably adopt stainless steel silk or titanium alloy material to make; Scale can be set on the sleeve pipe make things convenient for emplacement depth; Stylophore, stylophore medicated cap, needle handle, stylet fixture etc. can adopt plastics or rubber etc. to make, and reduce cost; Fixed part can adopt threaded engagement to connect with being connected.

Needle set for pulmonary tuberosity puncture location provided by the utility model, stylet length is 18cm-25cm, preferred length is 22cm, diameter is 0.6mm-1.0mm, preferred diameter is 0.8cm, and the sleeve pipe external diameter is 0.9mm-1.2mm, and preferred external diameter is 1.2mm, length is 10cm-15cm, and preferred length is 12cm.To guarantee that simultaneously stylet increases the diameter of thick section slightly less than casing inner diameter.

Adopt the needle set for pulmonary tuberosity puncture location provided by the utility model to carry out a kind of mode of thoracoscopic operation (VATS) as follows: after the general anesthesia, the patient gets lateral position, and Ipsilateral up.The routine disinfection drape is done the 1.0cm otch in 7-8 intercostal midaxillary line, puts people's thoracoscope, checks the thoracic cavity comprehensively.An about 1.5cm otch is done at the position of selecting the most easily to arrive focus according to lesions position, stretches into carefully comprehensive palpation of forefinger, in conjunction with the CT image of reconstruction, determines the nook closing member crook degree of depth and lesions position.Mention the puncture nook closing member, with stapler wedge excision pathological changes, determine next step operation plan according to pathological examination through thoracoscope.

Owing to can distinguish soon position and the degree of depth of focus according to positioning wire in art, therefore, the buckle steel wire under the CT guiding is positioned at the shortening operating time, reduces the advantage that the operation wound aspect has uniqueness.Most of patient only needs the handle hole about 1 1.5cm can satisfy requirements of operation.VATS excision average time only is (15 ± 6) min, far below the 130min that does not implement the location.On the other hand, the patient mentions positioning wire in art after, focus is positioned at the top of lung tissue, helps to determine the position of incisxal edge.According to the guiding of positioning needle, greatly shortened the waiting time in the art.

Use the needle set for pulmonary tuberosity puncture location provided by the utility model, accurate positioning, difficult drop-off, because the improvement of structure, in operating process, be not easy to cause pneumothorax, also just provide the necessary time accurately to locate focus to the operator, avoided repeated localised puncture to increase patient's secondary and hindered, the nook closing member tail fixing device has also been eliminated the risk of bringing secondary injury to patient simultaneously.This utility model is particularly suitable for the lower Small pulmonary nodule puncture of CT guiding location.

The above embodiment has only expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to this utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.

Claims (10)

1. one kind is used for the needle set that pulmonary's tuberosity puncture is located, it is characterized in that: comprise stylet and sleeve pipe, described sleeve pipe is the hollow cavity of both ends open, described stylet one end is provided with hook formation, described hook formation is strapped in to be realized in the sleeve pipe shrinking, the other end of stylet stretches out sleeve pipe, and stylet is provided with the thick section that increases, and describedly increases thick section and is positioned at sleeve pipe.

2. the needle set for pulmonary tuberosity puncture location according to claim 1 is characterized in that: described to increase thick section be two.

3. the needle set for pulmonary tuberosity puncture location according to claim 1, it is characterized in that: described hook formation is the double hook structure.

4. the needle set for pulmonary tuberosity puncture location according to claim 1, it is characterized in that: also include the stylophore of end sealing and the stylophore medicated cap that adapts with stylophore, described stylophore medicated cap cooperates the opening that is installed in stylophore, be provided with the first set pore that passes through for sleeve pipe on the described stylophore medicated cap, one end of described sleeve pipe constraint hook formation is arranged in the stylophore, and the other end stretches out the stylophore medicated cap.

5. the needle set for pulmonary tuberosity puncture location according to claim 4, it is characterized in that: the end that described stylophore medicated cap does not contact with stylophore is connected with needle handle, described needle handle center is provided with the second collar aperture, described sleeve pipe inserts in the second collar aperture to be realized affixedly, and described stylet stretches out from the other end of needle handle.

6. the needle set for pulmonary tuberosity puncture location according to claim 5, it is characterized in that: the end that described needle handle stretches out stylet is provided with tapered opening, and described the second collar aperture and tapered opening seamlessly transit.

7. according to the described needle set for pulmonary tuberosity puncture location of above-mentioned arbitrary claim, it is characterized in that: also comprise the stylet fixture, described stylet fixture comprises sleeve, fixed part and block, described fixed part is the secondary column structure that is comprised of the first cylinder and the second cylinder, described the second body diameter is greater than the first body diameter, be provided with two apertures on the described secondary column structure, described two apertures run through two end faces of secondary column structure, described sleeve set is on the first column structure, and above-mentioned block covers on the second column structure.

8. the needle set for pulmonary tuberosity puncture location according to claim 1, it is characterized in that: described stylet is stainless steel silk or titanium alloy wire.

9. the needle set for pulmonary tuberosity puncture location according to claim 1, it is characterized in that: described stylet length is 18cm-25cm, and diameter is 0.6mm-1.0mm, and the sleeve pipe external diameter is 0.9mm-1.2mm, and length is 10cm-15cm.

10. the needle set for pulmonary tuberosity puncture location according to claim 1, it is characterized in that: described stylet length is 22cm, and diameter is 0.8mm, and the sleeve pipe external diameter is 1.2mm, and length is 12cm.

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