CN209933000U - Positioning marking device in operation - Google Patents

Abstract

The utility model discloses a positioning and marking device in operation, including pjncture needle and marker, the marker holding is in the syringe, the pjncture needle includes needle cover and nook closing member, the needle cover with at least one of them of nook closing member is equipped with the connecting portion of connecting the syringe head and is used for the needle point of puncture, the needle cover has the needle cover inner chamber, the nook closing member wears to establish in the needle cover inner chamber, the nook closing member inserts completely during the needle cover, the nook closing member with the whole of needle cover constitution is sealed, the needle core with during needle cover relative sliding, will be in the needle cover or form a passageway in the needle cover, allow marker in the syringe passes through the passageway flows. The utility model discloses a location marking device can solve the aversion problem of droing in the nodule operation location, can confirm the focus degree of depth again, conveniently carries out the more accurate focus of excision of art person.

Description

Positioning marking device in operation

Technical Field

The utility model relates to the technical field of medical equipment, a positioning and marking device in an operation is related to, especially a medical device that can pinpoint and mark lung structure and pathological change tissue in being used for the navigation operation of lung.

Background

With the development of image diagnosis technology, the early lung lesion discovery becomes earlier and easier, and the detection rate of lung nodules needing surgical treatment becomes easier. At present, the position of the pulmonary nodule can be determined by a localization method through visual observation when the size of the pulmonary nodule is larger than 1cm, but when the size of the pulmonary nodule is smaller than or equal to 1cm, the failure rate of the localization method through visual observation reaches more than 50 percent, and the surgical excision range is too large, so that the risk of trauma of a patient is increased.

At present, the location before the art generally realizes the location of the pulmonary nodules through percutaneous puncture under the guide of CT, the commonly used location material includes metal material (with hook wire, spiral wire, microcoil), the commonly used product is the wire of terminal area location hook, its location hook can be fixed in the lung, but among the prior art a section is for the wire of mammary gland disease design often is used as mark device, and the device is in the pulmonary nodule location in-process, has following defect: firstly, the tail end of the metal wire is only provided with the barb-shaped positioning hook, the front end part of the metal wire is fixed on the chest wall, and due to the linkage effect of the metal wire caused by breathing motion, the firmer the metal wire is combined with the chest wall, and the more easily the positioning hook is displaced and falls off; secondly, the puncture needle matched with the metal wire has no needle core, so that the injury of lung tissues can be aggravated in the puncture process, and the incidence rate of pneumothorax and hemorrhage is increased; thirdly, the depth of the focus can not be determined by the metal wire, so that the life quality of a patient is reduced or the metal wire is cut off to cause medical accidents easily caused by overlarge cutting range in the operation process; fourth, after the wire is positioned, the patient keeps a fixed position for a long time, which causes discomfort, numbness of limbs, pain and the like, so that the patient needs to be transferred to the operating room as soon as possible for operation, which causes the operating room to have a short turnover.

Chinese patent publication No. CN 20416436 discloses a pulmonary nodule puncture marker that reduces the risk of detachment compared to a wire, but fails to substantially resolve displacement and detachment of the marker. The head of the stylet is provided with three J-shaped hooks which are uniformly distributed, the tail of the stylet is provided with silk threads, the silk threads are used for being fixed on the body surface of a patient in the operation positioning process, and the silk threads are more firmly fixed and are easier to shift and fall off due to the linkage effect of the silk threads caused by respiratory motion; particularly, in the operation process, when an operator clamps a bronchus to exhaust gas in lung alveoli, the lung is collapsed, and the needle core is easy to shift and fall off; the needle core can not determine the depth of the focus, and the cut lung tissue is easy to be overlarge, so that the wound of a patient is overlarge, the recovery period is prolonged, and the life quality of the patient is reduced.

Therefore, the development of a marking device which can not only solve the displacement and falling off, but also determine the depth of the focus and facilitate the operator to more accurately cut the focus is a problem which needs to be solved in the field all the time.

SUMMERY OF THE UTILITY MODEL

The utility model provides a location marking device in the operation, especially a location marking device that is arranged in lung's navigation operation can pinpoint and mark lung structure and pathological change tissue can solve the aversion and drop, can confirm again that the focus degree of depth, make things convenient for the art person more accurate excision focus.

The technical scheme of the utility model as follows:

a positioning and marking device in an operation comprises a puncture needle and a marker, wherein the marker is contained in a syringe, the puncture needle comprises a needle sleeve and a needle core, at least one of the needle sleeve and the needle core is provided with a connecting part connected with the head part of the syringe and a needle point for puncture, the needle sleeve is provided with a needle sleeve inner cavity, the needle core is arranged in the needle sleeve inner cavity in a penetrating manner, when the needle core is completely inserted into the needle sleeve, the whole formed by the needle core and the needle sleeve is closed, and when the needle core and the needle sleeve slide relatively, a channel is formed in the needle core or the needle sleeve, so that the marker in the syringe is allowed to flow out through the channel. The label may be a medical dye or a hydrocolloid.

In a preferred embodiment, the outer surface of the needle sheath and the lumen have one or more needle sheath lateral apertures therebetween. The number, the arrangement position and the relative position of the lateral holes of the needle sleeve are not limited, and the needle sleeve can be arranged by a person skilled in the art according to the position of the positioning mark.

In a preferred embodiment, the needle guard lumen opens at the proximal end of the needle guard and the needle guard lumen opens at the distal end of the needle guard or does not open.

In a preferred embodiment, the distal end of the needle guard terminates in a needle guard chamfer structure.

In a further preferred embodiment, in case of a distal opening of the needle guard lumen, the needle guard lumen forms a needle guard opening at the needle guard chamfer structure at the distal end of the needle guard and the needle core is correspondingly provided with a needle core chamfer structure.

In a further preferred embodiment, the stylet is not provided with a stylet chamfer structure without the distal end of the needle hub lumen being open.

In a preferred embodiment, the proximal end of the needle sheath has a needle hub that mates with the syringe.

In one embodiment, the stylet is a solid structure.

In one embodiment, the proximal end of the hub has a hub connector one that mates with the needle hub connector.

In another embodiment, the core has a core lumen open at one end and closed at one end, and there is one or more core lateral bores between the core lumen and the outer surface of the core. The number, the arrangement position and the relative position of the lateral holes of the stylet are not limited, and the position of the positioning mark can be arranged according to the needs of the technicians in the field. Preferably, the needle guard lumen is open at the distal end of the needle guard. In a further embodiment, it is also preferred that the needle sheath is not provided with a needle sheath connector that mates with the syringe, while the proximal end of the stylet has a second stylet connector that mates with the syringe.

In a preferred embodiment, the distal end of the needle sleeve inner cavity is open, the needle sleeve inner cavity forms a needle sleeve opening at the needle sleeve chamfering structure at the distal end of the needle sleeve, and the needle core is correspondingly provided with a needle core chamfering structure which is a solid structure.

In a preferred embodiment, the periphery of the needle guard comprises a stop and/or needle guard graduations. The stopper can move axially at the periphery of the needle sleeve, and the depth of the puncture needle penetrating into the lung can be preset by the stopper.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a location marking device can solve the aversion problem of droing in the nodule operation location, can confirm the focus degree of depth again, conveniently carries out the more accurate focus of excision of art person.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

Fig. 1 is an exploded schematic view of a positioning and marking device according to embodiment 1 of the present invention;

fig. 2 is a schematic view of an application of the positioning and marking device according to embodiment 1 of the present invention;

fig. 3 is an exploded schematic view of a positioning and marking device according to embodiment 2 of the present invention;

fig. 4 is a schematic view of an application of the positioning and marking device according to embodiment 2 of the present invention;

fig. 5 is an exploded schematic view of a positioning and marking device according to embodiment 3 of the present invention;

fig. 6 is a schematic view of an application of the positioning and marking device according to embodiment 3 of the present invention;

fig. 7 is an exploded view of a puncture needle of a positioning and marking device according to embodiment 4 of the present invention;

fig. 8 is a schematic view of an application of the positioning and marking device according to embodiment 4 of the present invention;

fig. 9 is an exploded schematic view of a positioning and marking device according to embodiment 5 of the present invention;

fig. 10 is a schematic view of an application of the positioning and marking device according to embodiment 5 of the present invention.

Detailed Description

The marking device in the prior art is easy to shift and fall off, the depth of a focus cannot be determined, and the cut lung tissue is easy to be overlarge, so that the wound of a patient is overlarge, the recovery period is prolonged, and the life quality of the patient is reduced.

The utility model provides a positioning and marking device which can accurately position and mark lung structure and lesion tissues in the lung navigation operation. The device can carry out multi-point marking, injects nontoxic dyestuff or biological colloid to the target position of lung and marks for the target position is observed clearly and is seen or the finger palpation feels outstanding with naked eyes, and the mark point is not influenced by factors such as respiratory motion moreover, thereby has avoided the risk that the mark shifts, drops. The device is simple to operate, the depth of a focus can be determined by multi-point marking, the operation can be guided more accurately, the wound to normal lung tissues is reduced, the lesion area can be marked quickly and completely removed, and the incidence rate of operation complications can be effectively reduced.

The present invention will be further described below with reference to specific embodiments. In the following embodiments, the proximal end is the end of the positioning and marking device close to the operator, and the distal end is the end of the positioning and marking device far away from the operator.

Example 1

Fig. 1 is a schematic structural diagram of embodiment 1 according to the present invention.

Referring to fig. 1, the positioning and marking device 1 of this embodiment is composed of a puncture needle 10 and a marker 11 injected into a syringe, the puncture needle 10 includes a needle hub 101 and a needle core 102, wherein,

the tail end of the far end of the needle sleeve 101 is provided with a needle sleeve chamfering structure 1011, and the needle sleeve chamfering structure 1011 is beneficial to the puncture needle 10 to enter the lung and reduce the damage to the patient; and the number of the first and second electrodes,

the needle sheath 101 has a sheath lumen 1012 running from the proximal end to the distal end, the sheath lumen 1012 forming a needle hub 1013 at a sheath chamfer feature 1011 at the distal end of the needle sheath 101, the proximal end of the needle sheath 101 having a needle hub 1014 for mating with a syringe;

a needle sleeve lateral hole 1015 is arranged between the outer surface of the needle sleeve 101 and the needle sleeve inner cavity, and the number of the needle sleeve lateral holes 1015 can be more than 1; one in this embodiment;

the needle core 102 can penetrate through the needle sleeve port 1014 and is arranged in the needle sleeve inner cavity 1012, the needle core 102 can axially move on the needle sleeve inner cavity 1012, the needle core 102 is of a solid structure, and the needle core 102 can be arranged to block the needle sleeve inner cavity 1012 so as to block the penetration of the needle sleeve port 1013 and the needle sleeve lateral hole 1015 with the needle sleeve port 1014, and if the puncture needle 10 accidentally injures the pulmonary capillary in the process of puncturing the lung, the blood of the pulmonary capillary can be prevented from flowing out of the needle sleeve port 1014 through the needle sleeve port 1013 and the needle sleeve lateral hole 1015;

the distal end of the hub 102 has a hub chamfer 1021 matching the hub port 1013 of the needle hub 101,

by the arrangement of the needle sleeve and the needle core, the tissue cut from the lung can be prevented from penetrating into the needle sleeve inner cavity 1012 of the needle sleeve 101 through the needle sleeve opening 1013 during the process of penetrating the puncture needle 10 into the lung;

the proximal end of the stylet 102 has a stylet hub 1022 matching the needle hub 1014, and the relative positions of the stylet chamfer structure 1021 and the needle hub chamfer structure 1011 can be limited by the matching connection of the needle hub 1014 and the stylet hub 1022, so as to ensure the matching of the stylet chamfer structure 1021 and the needle hub chamfer structure 1011.

When the positioning and marking device of the embodiment is used, after the lung nodule positioning is realized through percutaneous puncture under the guidance of CT, the puncture needle 10 is punctured into the lung, after the puncture is completed, the needle core 102 is pulled proximally from the needle sheath inner cavity 1012 of the needle sheath 101 and is separated from the needle sheath 102 along the direction shown by the upward arrow in fig. 2, at this time, the needle sheath lateral hole 1015 is communicated with the needle sheath connector 1014, and then the connector of the syringe is connected with the needle sheath connector 1014 of the needle sheath 101, so that the marker 11 can be injected into the lung through the needle sheath port 1013 and the needle sheath lateral hole 1015 of the needle sheath 101, in the embodiment, two multi-point marks can be formed in the lung tissue through the needle sheath port 1013 and the needle sheath lateral hole 1015.

In this embodiment, the marker 11 may be a colored medical liquid medicine such as iodine tincture, gentian violet disinfectant, and the like, and the marker 11 has a color rendering property, so that the multi-point marking is beneficial for a doctor to perform a next operation under visual observation.

Example 2

Fig. 3 is a schematic structural diagram according to embodiment 2 of the present invention.

Referring to fig. 3, the positioning and marking device 2 of this embodiment is composed of a puncture needle 20 and a marker 21 injected into a syringe, wherein,

the puncture needle 20 comprises a needle sleeve 201 and a needle core 202;

the tail end of the far end of the needle sleeve 201 is provided with a needle sleeve chamfering structure 2011, and the needle sleeve chamfering structure 2011 is beneficial to the puncture needle 20 to puncture into the lung and reduce the damage to the patient;

the needle hub 201 has a hub lumen 2012 extending from the proximal end to the distal end, the hub lumen 2012 forming a hub port 2013 at a hub chamfer feature 2011 at the distal end of the hub 201; the needle sleeve is not provided with a needle sleeve joint matched with the syringe;

the stylet 202 may extend through the needle guard lumen 2012, and the needle guard 201 may move axially around the outer circumference of the stylet 202;

the proximal end of the stylet 202 has a stylet connector 2022 matching the syringe, the stylet 202 has a stylet lumen 2023, the stylet lumen 2023 is not open at the distal end and is a lumen with one end closed;

a plurality of needle core lateral holes 2024 are formed between the needle core inner cavity 2023 and the outer surface of the needle core 202, the number of the needle core lateral holes 2024 is 2, 2 needle core lateral holes 2024 are arranged in a straight line, and the axial distance between the two needle core lateral holes 2024 is 20 mm;

the distal end of the stylet 202 is provided with a stylet chamfer structure 2021 matched with the needle hub 2013 of the needle sleeve 201, and the stylet chamfer structure 2021 is a solid structure;

the outer circumference of the stylet 202 has stylet graduation marks 2025.

The needle sleeve and the needle core are arranged in such a way that the needle core 202 can block the inner cavity 2012 of the needle sleeve, so as to block the penetration between the needle sleeve opening 2013 and the near end of the needle sleeve 201, and if the lung capillary vessel is accidentally injured in the process that the puncture needle 10 is punctured into the lung, the blood of the lung capillary vessel can be prevented from flowing out of the near end of the needle sleeve 201 through the needle sleeve opening 2013; while preventing the excised tissue from penetrating into the needle hub lumen 2012 of the needle hub 201 through the needle hub port 2013.

When the positioning and marking device of the embodiment is used, after the pulmonary nodule positioning is realized through percutaneous puncture under the guidance of CT, the puncture needle 20 is punctured into the lung, after the puncture is completed, the needle sheath 201 is pulled from the periphery of the needle core 202 to the proximal end along the direction indicated by the upward arrow in fig. 4, and the relative distance between the distal end of the needle core 202 and the distal end of the needle sheath 201 is observed through the needle core graduation mark 2025 on the periphery of the needle core 202, so as to judge whether the needle core lateral hole 2024 of the needle core 202 is exposed from the needle sheath inner cavity 2012, further, the needle core lateral hole 2024 is directly contacted with the lung tissue, and thus the needle core connector 2021 can be communicated with the lung tissue through the needle core lateral hole 2024 and the needle core inner cavity 2023;

the syringe is connected to the hub connector 2022 of the hub 202 so that the marker 21 can be injected into the lung through the hub side opening 2024 of the hub 202 and two multi-point markers can be formed in the lung tissue through the hub side opening 2024.

In the preferred embodiment, the marker 21 may be a biological colloid such as a gel for Kanpatch medicine, and after the marker 21 is solidified, the multipoint marking is beneficial for the doctor to perform the next operation through the finger palpation.

Example 3

Fig. 5 is a schematic structural diagram according to embodiment 3 of the present invention.

Referring to fig. 5, the positioning and marking device 3 of this embodiment is composed of a puncture needle 30 and a marker 31 injected into a syringe, the puncture needle 30 includes a needle sheath 301 and a needle core 302;

the proximal end of the needle sheath 301 comprises a needle sheath cavity 3012, the needle sheath cavity 3012 and the outer surface of the needle sheath 301 have a plurality of needle sheath lateral holes 3015, the number of the needle sheath lateral holes 3015 may be more than 2, preferably 5 in the embodiment, 5 needle sheath lateral holes 3015 are arranged spirally, and the axial distance between two adjacent needle sheath lateral holes 3015 is 10 mm;

the distal end of the needle sleeve 301 is provided with a needle sleeve chamfering structure 3011, the needle sleeve chamfering structure 3011 is a solid structure, and the needle sleeve chamfering structure 3011 is beneficial to the puncture needle 30 to puncture into the lung and reduce the damage to the patient;

the proximal end of the needle sleeve 301 comprises a needle sleeve joint 3014, the needle core 302 can pass through the needle sleeve joint 3014 and is arranged on the needle sleeve inner cavity 3012 in a penetrating way, and the needle core 302 can move axially on the needle sleeve inner cavity 3012;

the stylet 302 is a solid structure;

the needle core and the needle sleeve are arranged in such a way that the needle core 302 can block the inner cavity 3012 of the needle sleeve, so that the through between the lateral hole 3015 of the needle sleeve and the needle sleeve joint 3014 is blocked, and if the lung capillary vessel is accidentally injured in the process that the puncture needle 30 is punctured into the lung, the blood of the lung capillary vessel can be prevented from flowing out of the needle sleeve joint 3014 through the lateral hole 3015 of the needle sleeve;

the proximal end of the stylet 302 is provided with a stylet hub 3022 matching with the needle hub 3014, and the relative position of the stylet 302 and the needle sheath 301 can be limited through the matching connection of the needle hub 3014 and the stylet hub 3022, so as to ensure the fixed connection of the stylet 302 and the needle sheath 301.

When the positioning and marking device of the embodiment is used, after the pulmonary nodules are positioned by percutaneous puncture under the guidance of CT, the puncture needle 30 is punctured into the lungs, and after the puncture is completed, the needle core 302 is pulled to the near end from the needle sleeve inner cavity 3012 of the needle sleeve 301 along the direction shown by the upward arrow in FIG. 6, and the needle core 302 is separated from the needle sleeve 301, so that the needle sleeve lateral hole 3015 is communicated with the needle sleeve connector 3014;

the syringe is connected to the needle hub 3014 of the needle sheath 301 so that the marker 31 can be injected into the lung through the needle sheath lateral hole 3015 of the needle sheath 301, and five multi-point markers can be formed in the lung tissue through the needle sheath lateral hole 3015, and the multi-point markers are beneficial for a doctor to perform a next operation through visual observation or finger palpation.

Example 4

Fig. 7 is a schematic structural diagram according to embodiment 4 of the present invention.

Referring to fig. 7, the puncture needle 40 of the positioning and marking device of this embodiment includes a needle sheath 401 and a hub 402;

the outer periphery of the needle hub 401 includes stops 4016 and needle hub graduations 4017, wherein the axial distance between the two needle hub graduations 4017 may be 5-20 mm.

The stopper 4016 is axially movable on the outer periphery of the needle hub 401 and the stopper 4016 presets the depth to which the puncture needle 40 penetrates into the lung.

When the positioning and marking device of the embodiment is used, firstly, the position of the stopper 4016 on the needle sleeve 401 is set, then the puncture needle 40 is punctured into the lung after the pulmonary nodule positioning is realized through the percutaneous puncture under the guidance of CT, the pre-positioning can prevent the puncture needle 40 from puncturing the lung too deeply and damaging the patient, and the schematic diagram is shown in fig. 8.

Example 5

Fig. 9 is a schematic structural diagram of embodiment 5 according to the present invention.

Referring to fig. 9, the positioning and marking device 5 of this embodiment is composed of a puncture needle 50 and a marker 51 injected into a syringe, wherein,

the puncture needle 50 comprises a needle sleeve 501 and a needle core 502;

the distal end of the needle sleeve 501 is provided with a needle sleeve chamfering structure 5011, and the needle sleeve chamfering structure 5011 is beneficial to the puncture of the puncture needle 50 into the lung and reduces the damage to the patient;

the needle sheath 501 has a needle sheath lumen 5012 running from the proximal end to the distal end, the needle sheath lumen 5012 forms a needle sheath port 5013 at a needle sheath chamfer structure 5011 at the distal end of the needle sheath 501, the proximal end of the needle sheath 501 has a needle sheath connector 5014 that mates with a syringe;

a plurality of needle sleeve lateral holes 5015 are formed between the outer surface of the needle sleeve 501 and the needle sleeve inner cavity 5012, the number of the needle sleeve lateral holes 5015 can be more than 1, the number of the needle sleeve lateral holes 5015 is preferably 10, every two of the 10 needle sleeve lateral holes 5015 are arranged in a straight line, 2 needle sleeve lateral holes are formed in the same axial height, 5 rows of needle sleeve lateral holes 5015 are formed, and the distance between every two rows of needle sleeve lateral holes 5015 in the axial direction is 5 mm;

the needle core 502 can penetrate through the needle sleeve connector 5014 and penetrate through the needle sleeve inner cavity 5012, the needle core 502 is of a solid structure, the needle core and the needle sleeve are arranged in a manner that the needle core 502 can block the needle sleeve inner cavity 5012, so that the needle sleeve opening 5013 and the needle sleeve lateral hole 5015 are prevented from being communicated with the needle sleeve connector 5014, and if pulmonary capillary vessels are accidentally injured in the process that the puncture needle 50 penetrates into the lung, blood of the pulmonary capillary vessels can be prevented from flowing out of the needle sleeve connector 5014 through the needle sleeve opening 5013 and the needle sleeve lateral hole 5015.

The distal end of the stylet 502 is provided with a stylet chamfer structure 5021 matched with a stylet port 5013 of the stylet sleeve 501, so that the arrangement can prevent the excised tissue of the lung from penetrating into the stylet sleeve inner cavity 5012 of the stylet sleeve 501 through the stylet port 5013 in the process that the puncture needle 50 penetrates into the lung;

the proximal end of the stylet 502 has a stylet connector 5022 that mates with the stylet connector 5014, and through the mating connection of the stylet connector 5014 and the stylet connector 5022, the relative position of the stylet chamfer structure 5021 and the stylet sleeve chamfer structure 5011 can be limited, thereby ensuring the mating of the stylet chamfer structure 5021 and the stylet sleeve chamfer structure 5011.

When the positioning and marking device is used, after the pulmonary nodule is positioned by percutaneous puncture under the guidance of CT, the puncture needle 50 is punctured into the lung, the stylet 502 is pulled towards the near end from the needle sleeve inner cavity 5012 of the needle sleeve 501 along the direction shown by the upward arrow in fig. 10, and the stylet 502 is separated from the needle sleeve 501, so that the needle sleeve mouth 5013 and the needle sleeve lateral hole 5015 are communicated with the needle sleeve connector 5014;

the syringe is connected with the needle hub 5014 of the needle hub 501 so that the marker 51 can be injected into the lung through the needle hub 5013 and the needle hub lateral hole 5015 of the needle hub 501, eleven multi-point marks can be formed in the lung tissue through the needle hub 5013 and the needle hub lateral hole 5015, and the multi-point marks are beneficial to the next operation of doctors through visual observation or finger palpation.

The utility model has the characteristics of it is following:

a. the positioning and marking device comprises a puncture needle and a marker, wherein the puncture needle comprises a needle sleeve and a needle core, and the marker can be medical dye or a biological colloid.

b. In a preferred embodiment, the distal end of the needle sleeve is a needle sleeve chamfering structure, the needle sleeve is provided with a needle sleeve inner cavity which penetrates from the proximal end to the distal end, a needle sleeve opening is formed in the needle sleeve inner cavity at the needle sleeve chamfering structure at the distal end of the needle sleeve, the end of the proximal end of the needle sleeve is provided with a needle sleeve joint matched with the syringe, the periphery of the needle sleeve is provided with needle sleeve lateral holes, and the number of the needle sleeve lateral holes can be more than 1; the needle core is of a solid structure, the tail end of the far end of the needle core is provided with a needle core chamfering structure matched with a needle sleeve opening of a needle sleeve, the tail end of the near end of the needle core is provided with a needle core joint matched with the needle sleeve joint, and the needle core can penetrate through the needle sleeve joint and penetrate through the inner cavity of the needle sleeve;

c. in another preferred embodiment, the distal end of the needle sleeve is provided with a needle sleeve chamfering structure, the needle sleeve is provided with a needle sleeve inner cavity which penetrates from the proximal end to the distal end, a needle sleeve opening is formed in the needle sleeve inner cavity at the needle sleeve chamfering structure at the distal end of the needle sleeve, the needle core can penetrate through the needle sleeve inner cavity, and the needle sleeve can axially move on the periphery of the needle core; the tail end of the near end of the stylet is provided with a stylet joint matched with the injector, the near end of the stylet comprises a stylet inner cavity, the periphery of the stylet corresponding to the stylet inner cavity is provided with stylet lateral holes, the number of the stylet lateral holes can be more than 2, the tail end of the far end of the stylet is of a solid structure, and the tail end of the far end of the stylet is provided with a stylet chamfer structure matched with a needle sleeve opening of a needle sleeve; the periphery of the stylet is provided with stylet scale marks which can mark the relative distance between the distal end of the stylet and the distal end of the needle sleeve.

d. In another preferred embodiment, the distal end of the needle sleeve is a needle sleeve chamfering structure, the proximal end of the needle sleeve comprises a needle sleeve inner cavity, the distal end of the needle sleeve is a solid structure, the proximal end of the needle sleeve is provided with a needle sleeve joint matched with the syringe, the periphery of the needle sleeve corresponding to the needle sleeve inner cavity is provided with needle sleeve lateral holes, and the number of the needle sleeve lateral holes can be more than 2; the needle core is of a solid structure, the tail end of the near end of the needle core is provided with a needle core joint matched with the needle sleeve joint, and the needle core can penetrate through the needle sleeve joint and penetrate through the inner cavity of the needle sleeve.

e. The axial arrangement of the plurality of lateral holes provided in the needle sheath or the needle core may be helical or linear.

f. The distance of the plurality of lateral holes of the needle sleeve or the needle core in the axial direction is 5-20 mm.

g. The lateral holes of the needle sleeve or the needle core on the same horizontal plane can be 1 or more.

h. The periphery of the needle sleeve is provided with a stopper which can preset or limit the depth of the puncture needle penetrating into the lung.

i. The periphery of the needle sleeve is provided with needle sleeve scale marks, 1 needle sleeve scale mark is arranged every 5-20mm, and the depth of the puncture needle penetrating into the lung can be marked.

j. The medical dye can be iodine tincture, gentian violet disinfectant, etc.

k. The biological colloid can be Kangpi special medical adhesive.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (14)

1. The positioning and marking device in the operation is characterized by comprising a puncture needle and a marker, wherein the marker is contained in a syringe, the puncture needle comprises a needle sleeve and a needle core, at least one of the needle sleeve and the needle core is provided with a connecting part connected with the head part of the syringe and a needle point for puncture, the needle sleeve is provided with a needle sleeve inner cavity, the needle core is arranged in the needle sleeve inner cavity in a penetrating manner, when the needle core is completely inserted into the needle sleeve, the whole formed by the needle core and the needle sleeve is closed, and when the needle core and the needle sleeve slide relatively, a channel is formed in the needle core or the needle sleeve, so that the marker in the syringe is allowed to flow out through the channel.

2. The intra-operative positioning marker device of claim 1, wherein more than one needle-hub lateral aperture is provided between the outer surface of the needle hub and the lumen.

3. An intra-operative position marker device as claimed in claim 1 wherein said needle hub lumen opens at a proximal end of said needle hub and said needle hub lumen opens at a distal end of said needle hub or does not open.

4. An intra-operative position marker device as claimed in claim 3 wherein the distal end of said sleeve terminates in a sleeve chamfer formation.

5. An intra-operative position marker device as claimed in claim 4, wherein with the distal end of the needle hub lumen open, the needle hub lumen forms a hub opening at the needle hub chamfer formation at the distal end of the needle hub, and the hub is correspondingly provided with a hub chamfer formation.

6. The intra-operative position marker device of claim 4, wherein the stylet is not provided with a stylet chamfer structure without opening the distal end of the needle guard lumen.

7. An intra-operative position marker device as claimed in claim 1, wherein the proximal end of said needle sheath has a needle hub fitting that mates with said syringe.

8. An intra-operative position marker device as claimed in claim 1, 5 or 6 wherein said core is of solid construction.

9. The intra-operative position marker device of claim 7, wherein the proximal end of said stylet has a stylet hub one that mates with said needle hub.

10. The intra-operative positioning marker device of claim 1, wherein the stylet has a stylet lumen open at one end and closed at one end, and wherein there is one or more stylet lateral bores between the stylet lumen and an outer surface of the stylet.

11. The intra-operative position marker device of claim 10, wherein said needle hub lumen is open at a distal end of said needle hub.

12. The intra-operative position marker device of claim 10, wherein said needle sheath is not provided with a needle sheath connector that mates with said syringe, and wherein said proximal end of said stylet has a second stylet connector that mates with the syringe.

13. An intra-operative position marker device as claimed in claim 1 wherein the periphery of the sleeve includes a stop and/or sleeve graduations.

14. The intraoperative positioning marker device of claim 1, wherein the marker is a medical dye or a bio-gel.

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