CN222533397U - A pulmonary nodule localization needle based on an angle meter - Google Patents

Abstract

The utility model discloses a pulmonary nodule localization needle based on an angle meter. In view of the defects of the conventional CT-guided pulmonary nodule puncture localization needle, such as insufficient local anesthesia depth and inability to display real-time depth and angle, the utility model realizes the three-step function of anesthesia, puncture and positioning in CT-guided pulmonary nodule localization by reasonably expanding the inner diameter of the puncture needle and adding an injection sub-port with a valve. At the same time, the puncture handle structure is improved, and a horizontal angle meter is integrated to display the puncture angle in real time, aiming to improve surgical efficiency and positioning accuracy, while minimizing the trauma and radiation dose suffered by the patient.

Description

Lung nodule positioning needle based on angle instrument

Technical Field

The utility model belongs to the field of medical treatment, and particularly relates to a lung nodule positioning needle based on an angle meter.

Background

Pulmonary nodules refer to circular or elliptical lesions of less than 3 cm in diameter found in lung tissue, which are typically found in chest imaging examinations (e.g., chest X-rays, CT scans, etc.), whose properties were not directly determined in the early days, which may be benign or malignant, while the pulmonary nodules may be single or multiple, and may be primary (originating in the lung) or secondary (from metastases at other sites). Early diagnosis and surgery of lung nodules is very important.

With the increasing health awareness and advances in pulmonary nodule screening technology, there are currently available diagnostic and surgical approaches to pulmonary nodules. The development of percutaneous lung biopsy provides help for clinically identifying benign and malignant lung nodules, and the television thoracoscopic operation is a minimally invasive external Zhou Xiexing excision, which can preserve normal lung tissues to the maximum extent and excise target lung nodules. Whether the focus is biopsied by percutaneous lung biopsy or the lung nodule is treated directionally by television thoracoscopy, accurate positioning of the lung nodule by a puncture method is required.

The most widely used in clinic is the positioning technology under CT guidance, firstly, local anesthesia is carried out on the chest of a patient, a doctor slowly advances a positioning needle according to images provided by CT, the needle inserting direction and the depth depend on personal experience of the doctor, and the positioning process before the pulmonary nodule operation needs to be corrected for more than three times under normal conditions, so that the positioning needle can accurately fall to the pulmonary nodule position, and then the positioner is released. The patient is not only allowed to receive multiple radiation, which causes damage to health, but also the repeated direction and depth correction process of the positioning needle is easy to cause damage to the skin and tissues of the patient, and unnecessary pain is brought to the patient. Secondly, when the lung nodule is positioned preoperatively, the local anesthesia needs to be punctured by a syringe, and then the positioning needle passes through a wound channel formed by the local anesthesia. The local anesthesia puncture and the positioning puncture are carried out twice in the whole process, so that secondary injury is easily brought to a patient, and when a lung nodule at a deep part is positioned, the depth of a local anesthesia needle is often insufficient, and pain of the patient is obvious when the puncture needle penetrates deep.

Therefore, the existing clinical positioning puncture operation on the lung nodule has the defects that the anesthesia needle and the positioning needle are wounded twice, the puncture efficiency is low, the whole puncture process is too dependent on personal experience of doctors, the depth and the angle of the positioning needle need to be repeatedly corrected, more pains are brought to patients, and meanwhile, the health of the patients can be influenced by the excessive times of CT scanning.

The existing integrated positioning needle for penetrating hemp only can realize injection of hemp from the needle tube of the positioning needle, the positioning efficiency is still very low, doctors still need to push the positioning needle by means of personal experience, and the existing integrated positioning needle for penetrating hemp has potential health hazards.

In addition, the existing angle control auxiliary instruments for the puncture and the positioning needle are all auxiliary angle instruments independent of the positioning needle, the manufacturing cost is high, the operation difficulty is high, the occupied space is large, in actual clinical operation, a doctor is difficult to control the angle instruments and the positioning needle at the same time, and possibly larger potential safety hazards are caused, meanwhile, most of the existing angle instruments are of non-disposable designs, the positioning needle is polluted after being used for multiple times, even wound infection is caused, and the accuracy is easily influenced after the use time is long. The positioning needle also displays angles through metal structures such as electronic components, the preparation cost is high, and the CT scanning process can be influenced in the operation, so that imaging interference is caused.

Thus, there is a clinical need for a disposable lung nodule positioning needle that can display an angle and has anesthesia.

Disclosure of utility model

Aiming at the defects, the utility model provides a lung nodule positioning needle based on an angle meter, which can realize the function of three steps of anesthesia, puncture and positioning in a lung nodule positioning operation under CT guidance.

The lung nodule positioning needle based on the angle instrument comprises a positioning assembly, an anesthesia assembly and the angle instrument, wherein the positioning assembly comprises a puncture needle, a pusher and a positioner, the pusher and the positioner are arranged in the puncture needle, the puncture needle is a hollow needle tube and is communicated with the anesthesia assembly, the pusher comprises a pushing core and a pushing button connected with the pushing core, the pushing core penetrates through the anesthesia assembly and the puncture needle, the pushing button is positioned at the top of the anesthesia assembly, the positioner is positioned at the outlet of the puncture needle and is in contact with the pushing core, the pushing button drives the pushing core to move, the pushing core drives the positioner to move along the wall of the puncture needle tube, the anesthesia assembly comprises an anesthesia injection main tube, the anesthesia injection main tube is detachably connected with the puncture needle and the pushing button, the anesthesia injection main tube is provided with anesthetic for injecting the anesthetic, and the angle instrument is arranged on the puncture needle and is used for displaying the angle between the puncture needle and the horizontal plane.

Preferably, the outer shell component for protecting the positioning needle is arranged outside the puncture needle and comprises a protection tube and a protection cover, wherein the protection tube is positioned outside the puncture needle and used for preventing the puncture needle from being polluted and damaged by the environment, and the protection cover is positioned outside the push button and used for preventing false touch.

Preferably, the locator comprises a locating wire and a locating hook which are connected with each other, wherein the locating wire is arranged inside the pushing core, and the locating hook is arranged at the tail end of the pushing core.

Preferably, the anesthetic assembly further comprises a one-way valve located at the anesthetic injection port for avoiding contamination of the interior of the needle cannula.

Preferably, the anesthetic assembly further comprises an anesthetic tube auxiliary tube, wherein the anesthetic tube auxiliary tube is arranged on the side wall of the anesthetic injection main tube and is communicated with the anesthetic injection main tube through the anesthetic injection opening, and is used for injecting anesthetic from the side direction.

Preferably, the positioning assembly further comprises a cursor which is in sliding connection with the puncture needle.

Preferably, the angle gauge is detachably connected with the puncture needle, and the angle gauge can rotate around the puncture needle to adjust the direction of the pointer.

Preferably, the angle gauge is slidably connected to the puncture needle and used as a cursor.

Preferably, the angle gauge is a gravity pointer angle gauge or a liquid angle gauge or a back gravity pointer angle gauge.

Preferably, the puncture needle is provided with a length scale for displaying the needle penetration depth.

The beneficial effects of the utility model are as follows:

(1) The utility model integrates the positioning needle and the angle meter, has strong practicability and lower cost, and simultaneously the positioning needle is disposable consumable, clean and sanitary;

(2) The positioning needle disclosed by the utility model is provided with the anesthesia inlet, and the anesthesia inlet is provided with the one-way valve, so that bacteria can be prevented from entering the positioning needle through the anesthesia inlet, and the risk of infection is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described below.

FIG. 1 is a schematic view of a positioning needle using a gravity pointer angle meter according to embodiment 1 of the present utility model;

FIG. 2 is a schematic diagram of the structure of the angle gauge of embodiment 2 of the present utility model as a cursor;

FIG. 3 is a schematic view showing the structure of a positioning needle using a back gravity pointer angle meter according to embodiment 3 of the present utility model;

Fig. 4 is a schematic view showing the structure of a positioning needle using a liquid goniometer according to embodiment 4 of the present utility model.

Reference numerals:

10-angle meter, 101-cavity, 102-gravity pointer,

11-Puncture needles, 12-cursors, 13-pushers, 14-positioners, 15-protection pipes, 16-protection covers, 17-one-way valves, 18-anesthesia injection main pipes and 19-anesthesia injection auxiliary pipes;

21-angle gauge, 31-back gravity pointer angle gauge, 311-movable scale, 312-pointer, 41-gravity angle gauge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in FIG. 1, an inclinometer-based lung nodule positioning needle comprises a positioning assembly, a housing assembly, an anesthesia assembly and an inclinometer.

The positioning component is a core component of the positioning needle and comprises a graduated puncture needle 11, a movable cursor 12, a pusher 13 and a positioner 14. The puncture needle 11 is a hollow needle tube with a certain inner diameter, and can be integrally designed with the anesthesia assembly, namely, the upper part of the puncture needle 11 and a vertical channel of the anesthesia assembly share the same hollow straight tube, and the puncture needle 11 and the anesthesia assembly can be detachably connected, for example, the anesthesia assembly and the puncture needle 11 are connected in a threaded or fastening manner, and the connection manner is not limited in the embodiment. The cursor 12 is arranged on the outer surface of the puncture needle 11 and is in sliding connection with the puncture needle tube, and the cursor 12 has the function of accurately setting the depth of needle insertion before needle insertion so as to improve the positioning accuracy. In this embodiment, the game mark 12 is made of rubber, and has a certain friction force, so that it can stably stay at any position of the puncture needle 11. The pusher 13 is used to secure the locating hooks on the locator 14 at the lung nodules. The pusher 13 comprises a pushing core and a pushing button, wherein the pushing core is an elongated core, the pushing button is arranged at the upper part of the anesthesia assembly and is a button with elastic arrangement, and the inside of the pushing button is fixedly connected with the pushing core. When the doctor presses the push button on the top, the push core moves down the tube of the puncture needle 11, and when the doctor releases the button, the push core springs back to the original position. In this embodiment, the push button lower extreme is equipped with a platform, and the atress platform of push button is regarded as, makes push button produce certain elastic deformation, and the while platform is regarded as coupling assembling, can dismantle with anesthesia subassembly and be connected. The center of the platform is provided with a hole, the push core passes through a small hole in the middle of the platform to reach the anesthesia assembly and the inside of the puncture needle 11. The locator 14 is located inside the puncture needle 11 adjacent to the outlet and is in contact with the push core. The positioner 14 comprises a positioning wire and a positioning hook, wherein the positioning wire is an extremely fine cotton wire and is positioned in the push core, and the positioning wire is connected with the positioning hook. In this embodiment, the positioning hook is an anchor hook, and is in an upward curved hook shape, so that the anchoring property is increased, and the positioning hook is convenient to fix at the lung nodule position, and in practice, the positioning hook can be any other structure that can be fixed at the lung nodule position, such as a grapple, a spring ring, a barbed needle, and the like, and the positioning hook is not limited in this embodiment, and is in the scope of the application as long as the positioning hook can be anchored at the lung nodule position.

The shell component is used for protecting the positioning component and comprises a protection tube 15 and a protection cover 16, wherein the protection tube 15 is positioned outside the puncture needle 11 and used for preventing the puncture needle 11 from being polluted and damaged by the environment, and the protection cover 16 is positioned outside the push button and used for preventing the push button from being touched to push the push core in advance.

The anesthesia assembly comprises an anesthesia injection main pipe 18, an anesthesia injection auxiliary pipe 19 and a one-way valve 17. The anesthesia injection main tube 18 is located at the top of the puncture needle 11, and in this embodiment, the anesthesia injection main tube 18 is of a conical design with a conical top facing upwards, so that the operation is convenient to hold, and meanwhile, the injected anesthetic can better enter the tube through the conical arrangement. The anesthesia injection auxiliary pipe 19 is located at one side of the anesthesia injection main pipe 18, is communicated with the anesthesia injection main pipe 18, is a port extending outwards from the anesthesia injection main pipe 18, and is used for injecting anesthetic. The one-way valve 17 is arranged at the injection port of the anesthesia injection auxiliary pipe 19 or at the connection part of the anesthesia injection auxiliary pipe 19 and the anesthesia injection main pipe 18, and the purpose is to only allow liquid to flow into the anesthesia injection main pipe 18 from the anesthesia injection auxiliary pipe 19, so that external pollutants can be prevented from entering the inside of the needle tube. The anesthesia component is fixedly connected with the puncture needle 11, and the top of the anesthesia injection main pipe 18 is the platform.

An angle gauge 10 is located on the needle 11 for displaying the angle of the needle with respect to the horizontal, the angle gauge used in this embodiment being a gravity pointer angle gauge 10. The angle appearance passes through the mode of buckle to be fixed at pjncture needle 11 top, and the doctor can observe the contained angle of locating needle and horizontal plane at any time when the operation, makes things convenient for accurate push pin, simultaneously, the angle appearance in this example can rotate around pjncture needle 11, and the doctor can be according to the operation habit of oneself, adjusts the direction of gravity pointer angle appearance 10. The gravity pointer angle instrument 10 is composed of a semicircular cavity 101 with scales and a gravity pointer 102, the gravity pointer 102 is arrow-shaped and has a certain weight, the direction of the gravity pointer 102 under the action of gravity is always vertical and downward, when the positioning needle is inclined, the scales in the semicircular cavity 101 pointed by the gravity pointer 102 are the inclined angle of the positioning needle at the moment, and a doctor can position the lung nodule of a patient at one time according to the inclined angle and the position of the cursor 12.

The pulmonary nodule anesthesia positioning needle based on the gravity pointer angle instrument 10 of this embodiment is disposable in all components.

The working mode of the positioning needle disclosed by the application is as follows:

In a clinical procedure, the physician obtains the positioning needle in this example and first removes the protective tube 15. Position information of the lung nodule, namely the depth and angle of the lung nodule from the chest surface of the patient, is obtained according to the lung nodule image of the CT scan, the cursor 12 is adjusted to a proper depth scale in advance, meanwhile, the angle meter 10 is observed, and the needle inserting angle is controlled to be slowly pushed into the chest of the patient. During the pushing process, anesthetic is injected from the anesthetic injection auxiliary pipe 19 by using the anesthetic needle at the same time, and the injection of the anesthetic and the pushing of the anesthetic are performed simultaneously, and the pushing of the anesthetic is stopped until the cursor 12 touches the skin of the patient. At this time, the doctor removes the protective cover 16, presses the push button to enable the push core to push the positioning hook to be fixed at the lung nodule position, then slowly pulls the push button outwards to pull out the push core, slowly pulls out the puncture needle 11 after completely pulling out the push core, and injects anesthetic from the anesthesia injection auxiliary tube 19 again when the needle head of the puncture needle 11 reaches the pleura of a patient, thereby relieving the pleural reaction of the patient, and finally thoroughly pulls out the puncture needle 11.

The whole process of this embodiment has only carried out a CT scanning before advancing the needle, has significantly reduced the patient and has revised repeatedly the radiation that the repeated scanning was born when doing the lung nodule location, has also alleviateed doctor's burden of revising, and wears to take anesthesia just when puncture location in integrated design for the patient need not receive repeated wound, and when the second time pours into anesthetic into, because there are two openings, atmospheric pressure is more stable, can not appear the condition of anesthetic refluence.

Example 2

As shown in fig. 2, the goniometer was used as a cursor as it is, and the other components were arranged in the same manner as in example 1.

In this embodiment, a gravity angle gauge is also used, and the principle of displaying the angle by the angle gauge 21 is the same as that of embodiment 1, but the angle gauge in this embodiment is a reduced version of the angle gauge of embodiment 1, so that the angle gauge can be disposed inside the protection tube 15 and outside the puncture needle 11, and used as a cursor of the puncture needle. The design can reduce the setting of vernier, effectively lighten the weight of pilot pin.

The angle gauge 21 is slidably connected with the puncture needle 11, and in this embodiment, a hollow rubber ring is sleeved on the outer wall of the puncture needle, so that the angle gauge can slide up and down and be fixed at any scale position.

Compared with the embodiment 1, the positioning needle disclosed in the embodiment has the advantages that a doctor only needs to pay attention to the angle meter in the operation process and does not need to pay attention to observe the cursor and the angle at the same time, so that the doctor can pay more attention to the operation process and the success rate of the operation is improved.

Example 3

As shown in fig. 3, the angle gauge used is a back gravity pointer angle gauge 31, and other components are arranged in the same manner as in embodiment 1.

The back gravity pointer angle gauge 31 includes a movable scale 311 and a pointer 312. The back gravity pointer angle meter 31 in this embodiment is a disc type, the center of the disc is provided with a movable shaft, the movable scale 311 can rotate around the center of the disc, a gravity block 312 is arranged below the movable scale, the gravity block is always vertical to the horizontal plane downwards due to gravity, and the pointer 312 is fixed on the disc, and the direction of the pointer 312 is always on the central axis of the positioning needle and points to the push button. In actual operation, when the positioning needle is inclined, the movable scale 311 rotates relatively, and the angle pointed by the pointer 312 is the inclined angle of the puncture needle.

The reverse gravity pointer angle gauge 31 in this embodiment may be normally detachably connected to the puncture needle 11 and used only as an angle gauge, or may be slidingly connected to the outside of the puncture needle 11 and the inside of the protection tube 15 as in embodiment 2 and used as an angle gauge and a cursor.

Example 4

As shown in fig. 4, the angle meter used was a liquid angle meter 41, and other components were arranged in the same manner as in embodiment 1.

The liquid angle gauge 41 comprises a disc cavity, a half of solution is arranged in the cavity, graduations are carved on the periphery of the cavity, and when the positioning needle is inclined, the inclination angle of the current puncture needle can be obtained according to the graduations of the liquid level of the solution. The liquid goniometer 41 may be rotated about the needle.

In special cases, the cavity can also be spherical, a channel penetrating through the puncture needle is arranged in the middle of the spherical cavity, scales are carved in the spherical cavity, and when the puncture needle is inclined, the inclination angle of the puncture needle at the moment can be obtained according to the position of the liquid level. The advantage of the liquid angle meter 41 in this embodiment is that the angle information can be seen 360 degrees without the need to rotate the angle meter.

The liquid angle gauge 41 in this embodiment may be normally detachably connected to the puncture needle 11 and used only as an angle gauge, or may be slidingly connected to the outside of the puncture needle 11 and the inside of the protection tube 15 as in embodiment 2 and used as an angle gauge and a cursor.

Example 5

The angle meter in the embodiment 1, the embodiment 3 and the embodiment 4 is characterized in that the angle meter is detachable and can be repeatedly used, namely, the angle meter can be detached from one positioning needle and mounted on the other positioning needle for use, the cost is saved, the situation that the whole positioning needle is required to be discarded due to damage of the angle meter under certain conditions can be prevented, the angle meter can be directly detached for replacement when the angle meter is damaged or inaccurate, and the angle meter is suitable for the situation that a part of doctors are not used to use the angle meter, and can be directly detached.

The lung nodule positioning needle based on the angle meter disclosed by the utility model aims at the defects that the local anesthesia depth is insufficient, the real-time depth and the angle cannot be displayed and the like of a lung nodule puncture positioning needle under the conventional CT guidance, and realizes the function of three steps of anesthesia, puncture and positioning in the lung nodule positioning operation under the CT guidance by reasonably expanding the inner diameter of the puncture needle and adding an injection auxiliary port with a valve. Simultaneously, improved puncture handle structure, fused level angle appearance, can show puncture angle in real time, aim at improving operation efficiency and location accuracy, furthest has reduced wound and the radiation dose that the patient received simultaneously.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The lung nodule positioning needle based on the angle instrument is characterized by comprising a positioning component, an anesthesia component and the angle instrument;

The positioning assembly comprises a puncture needle (11), a pusher (13) and a positioner (14) which are arranged in the puncture needle (11), wherein the puncture needle (11) is a hollow needle tube and is communicated with the anesthesia assembly, the pusher comprises a pushing core and a pushing button connected with the pushing core, the pushing core is arranged in the anesthesia assembly and the puncture needle in a penetrating way, the pushing button is positioned at the top of the anesthesia assembly, the positioner (14) is positioned at the outlet of the puncture needle (11) and is in contact with the pushing core, the pushing button drives the pushing core to move, and the pushing core drives the positioner (14) to move;

The anesthesia assembly comprises an anesthesia injection main pipe (18), the anesthesia injection main pipe (18) is detachably connected with the puncture needle (11) and the push button, and the anesthesia injection main pipe (18) is provided with an anesthetic injection port for injecting anesthetic;

The angle gauge (10) is arranged on the puncture needle (11) and is used for displaying the angle between the puncture needle (11) and the horizontal plane.

2. The pulmonary nodule positioning needle of claim 1, wherein the anesthesia assembly further comprises an anesthesia tubing sub-tube (19), the anesthesia tubing sub-tube (19) being disposed on a side wall of the anesthesia infusion main tube (18) in communication with the anesthesia infusion main tube (18).

3. The needle of claim 2, wherein the anesthesia assembly further comprises a one-way valve (17), the one-way valve (17) being located at the injection port of the anesthesia tubing auxiliary (19) for avoiding contamination of the interior of the needle cannula.

4. A lung nodule positioning needle according to any of claims 1-3, wherein said positioner (14) comprises a connecting positioning wire and a positioning hook, said positioning wire being located inside said push core and said positioning hook being located at the end of said push core.

5. The needle of claim 4, wherein the positioning assembly further comprises a cursor (12), the cursor (12) being slidably connected to the needle (11).

6. A lung nodule positioning needle according to any of claims 1-3, wherein the outer housing assembly for protecting the positioning needle is arranged outside the needle (11) and comprises a protective tube (15) and a protective cover (16), the protective tube (15) being arranged outside the needle (11) for preventing environmental contamination and destruction of the needle, the protective cover (16) being arranged outside the push button for preventing false touches.

7. The lung nodule positioning needle based on angle apparatus according to claim 1, wherein the angle apparatus (10) is integrally provided outside the puncture needle (11) and detachably connected to the puncture needle (11), the angle apparatus (10) being rotatable around the puncture needle (11) to adjust the direction of the pointer.

8. The pulmonary nodule positioning needle based on an angle instrument according to claim 1, wherein the angle instrument (10) is integrally provided on the puncture needle (11), and is slidingly connected with the puncture needle (11) to be used as a cursor.

9. The pulmonary nodule positioning needle of claim 7 or 8, wherein the angle meter (10) is a gravity pointer angle meter or a liquid angle meter or a back gravity pointer angle meter.

10. The pulmonary nodule positioning needle based on an angle instrument of claim 1, wherein the puncture needle (11) is provided with length graduations for displaying the depth of penetration.