CN216060676U

CN216060676U - Pulmonary nodule positioning device

Info

Publication number: CN216060676U
Application number: CN202120601882.2U
Authority: CN
Inventors: 邓博云; 叶海茵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2022-03-18
Anticipated expiration: 2031-03-24

Abstract

The utility model discloses a pulmonary nodule positioning device, and relates to lung puncture equipment. The front end of the marking needle body electrically connected with the electrotome system forms a positioning mark in the form of scab skin and the like by cauterizing the pulmonary nodule part, so that the position does not fluctuate along with the respiration of the chest, and the pulmonary nodule can be accurately positioned in the operation process.

Description

Pulmonary nodule positioning device

Technical Field

The utility model relates to lung puncture equipment, in particular to a lung nodule positioning device.

Background

The lung nodules are small focal, roundish-like, imagewise appearing densely-heightened shadows, and can be single-shot or multiple-shot without atelectasis, glottic enlargement, and pleural effusion. Isolated lung nodules have no typical symptoms, and are often single, clear in boundary, high in density, less than or equal to 3cm in diameter, and surrounded by soft tissue of lung containing air. Those with a local lesion diameter >3cm are called lung masses, and the probability of lung cancer is relatively high and is not within the consensus range. It is generally believed that >10 diffuse nodules, most likely accompanied by symptoms, can be caused by extrathoracic malignant metastasis or active infection, and the likelihood of primary lung cancer is relatively small. Patients with acquired lung nodules generally need surgical resection, and in the existing preparation for surgery, lung nodules need to be located before surgery, and currently, the commonly used locating means include the following technical routes: 1. injection of methylene blue: preoperatively puncturing under CT guidance, injecting methylene blue around the nodule, and marking by color; 2. injecting colloid: puncture under CT guidance before an operation, inject colloid around the nodule, and locate through the lump formed by the colloid; 3. and (3) remaining the positioning needle: puncture under CT guidance before operation, and keep a positioning needle around the nodule for positioning.

The 3 rd technical route (namely, the indwelling positioning needle) needs to be penetrated into the lung for positioning, and is a common preoperative positioning method under the condition that only one pulmonary nodule exists, but in the operation of a plurality of pulmonary nodule patients, the pulmonary nodule can be cut off in sequence only in the operation, the respiratory of the patient possibly causes the positioning needle to be pulled and fall off and the lung tissue to be torn in the operation process, and the indwelling positioning needles can easily generate risks of pneumothorax, hemothorax, vascular embolism, tumor implantation metastasis and the like, and sometimes even endanger the life safety of the patient. And the positioning needle is left in the ventilation state, the volume of the lung changes in the lung collapse process, and the positioning needle has the possibility of further damaging the lung.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve at least one of the technical problems in the prior art, and provides a pulmonary nodule positioning device which can reduce risks of pneumothorax, hemothorax, vascular embolism, tumor implantation metastasis and the like caused by preoperative pulmonary nodule positioning and can keep accurate positioning of pulmonary nodules in the operation process.

In order to realize the purpose of the utility model, the following technical scheme is provided:

a pulmonary nodule localization apparatus, the localization apparatus comprising:

the puncture needle head is hollow, and the front end of the puncture needle head is provided with a puncture part for puncturing human tissues;

the marking assembly comprises an elastic part and a marking needle body electrically connected with the electrotome system, the rear end of the marking needle body is connected with the elastic part, and the front end of the marking needle body is positioned in the puncture needle head and can extend out of the front end of the puncture needle head under the driving of the elastic part so as to form a positioning mark on a pulmonary nodule part.

As a further improvement, the puncture needle head is made of an insulating material.

As a further improvement, the insulating material is hard plastic or glass.

As a further improvement, the rigid plastic is polyvinyl chloride, polyethylene, polypropylene or polystyrene.

As a further improvement, the elastic part is a spring, the spring is located inside the puncture needle head and sleeved on the periphery of the marking needle body, one end of the spring is fixedly connected with the inner wall of the puncture needle head, and the other end of the spring is fixedly connected with the marking needle body and used for providing elastic force for driving the front end of the marking needle body to extend out of the front end of the puncture needle head.

As a further improvement, the puncture needle head comprises a puncture section at the front end and an expansion section at the rear end, the pipe diameter of the expansion section is larger than that of the puncture section, and the spring is arranged in the expansion section.

Compared with the prior art, the lung nodule positioning device provided by the utility model at least has the following beneficial effects:

1. after the lung nodule positioning device provided by the utility model is punctured into the chest wall, the positioning mark can be formed on the lung nodule part through the front end of the marking needle body, so that the lung nodule positioning device does not need to be retained in the lung after the lung nodule positioning is finished, and the dangers of pneumothorax, hemothorax, vascular embolism, tumor implantation metastasis and the like caused by the retention of the positioning needle are effectively avoided.

2. The front end of the marking needle body electrically connected with the electrotome system forms a positioning mark in the form of scab skin and the like by cauterizing the pulmonary nodule part, so that the position does not fluctuate along with the respiration of the chest, and the pulmonary nodule can be accurately positioned in the operation process.

Additional aspects and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic diagram of a lung nodule locating apparatus in one embodiment;

fig. 2 is a schematic structural diagram of a lung nodule locating apparatus in another embodiment.

Reference numerals:

100. a puncture needle head; 110. a piercing section; 111. a puncture structure; 120. an expansion section; 200. marking the needle body; 300. a spring; 310. a gasket.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

To facilitate understanding of the present invention, it is necessary to make necessary a description of terms related to embodiments of the present invention.

The lung nodules are small focal, roundish-like, imagewise appearing densely-heightened shadows, and can be single-shot or multiple-shot without atelectasis, glottic enlargement, and pleural effusion. Isolated lung nodules have no typical symptoms, and are often single, clear in boundary, high in density, less than or equal to 3cm in diameter, and surrounded by soft tissue of lung containing air. Those with a local lesion diameter >3cm are called lung masses, and the probability of lung cancer is relatively high and is not within the consensus range. It is generally believed that >10 diffuse nodules, most likely accompanied by symptoms, can be caused by extrathoracic malignant metastasis or active infection, and the likelihood of primary lung cancer is relatively small.

A needle refers to a tubular structure that is hollow and open at both ends.

An electrotome system, which is a high-frequency electrotome (also called a high-frequency surgical instrument), is an electrosurgical instrument for replacing a mechanical scalpel to cut tissues. The tissue is heated when the high-frequency high-voltage current generated by the tip of the effective electrode contacts with the body, so that the separation and coagulation of the body tissue are realized, and the purposes of cutting and hemostasis are achieved. In the utility model, the effective electrode of the electrotome system can be used as a marking needle body. It should be noted that the specific operation principle and the detailed structure of the electric system belong to the prior art in the field, and are not described herein.

A lung nodule locating apparatus provided by the present invention is described in detail below by way of one or more examples.

Referring to FIG. 1, in one embodiment, a pulmonary nodule locating apparatus is provided comprising a hollow piercing needle 100 and a marker assembly. Wherein the front end of the puncture needle 100 is provided with a puncture member for puncturing human tissue (i.e., a tip structure of the front end of the puncture needle 100 in fig. 1). The marking assembly comprises an elastic part and a marking needle body 200 electrically connected with the electrotome system, wherein the rear end of the marking needle body 200 is connected with the elastic part, and the front end is positioned inside the puncture needle head 100 and can extend out from the front end of the puncture needle head 100 under the driving of the elastic part for cauterizing scab on a pulmonary nodule part to form a positioning mark.

The pulmonary nodule positioning device provided in the embodiment can form a positioning mark on a pulmonary nodule part through the front end of the mark needle body 200 after penetrating into a chest wall, so that the pulmonary nodule positioning device is not required to be left in a lung after being positioned, and dangers such as pneumothorax, hemothorax, vascular embolism, tumor implantation metastasis and the like caused by the retention of a positioning needle are effectively avoided. Since the distal end of the marker needle body 200 electrically connected to the electrotome system forms a positioning marker in the form of a scab or the like by cauterizing the pulmonary nodule, the position does not fluctuate with chest breathing, and the pulmonary nodule can be accurately positioned during the operation.

In one example, the marker pin 200 is made of a conductive material and the puncture needle 100 is made of an insulating material. In this example, the puncture needle 100 is made of an insulating material, and does not damage the chest wall tissue due to cauterization. Specifically, the insulating material is rigid plastic or glass, the rigid plastic is polyvinyl chloride, polyethylene, polypropylene or polystyrene, and it can be understood that the polyvinyl chloride, the polyethylene, the polypropylene and the polystyrene are all medical grade plastics, so that the sanitation of the operation can be ensured.

In one example, the needle assembly further comprises an insulating sleeve (not shown), the insulating sleeve is a hollow tube with an outer diameter smaller than that of the puncture needle 100, the marker needle 200 and the puncture needle 100 are both made of conductive materials, when the needle assembly is assembled, the insulating sleeve is firstly inserted into the puncture needle 100, then the marker needle 200 is inserted into the insulating sleeve, and the marker needle 200 can move in the insulating sleeve along the radial direction under the driving of the spring 300. In this embodiment, the puncture needle 100 is made of a conventional metal material, and has a better puncture effect compared with the puncture needle 100 made of an insulating material.

In one example, the front end and the rear end of the puncture needle 100 have the same diameter (not shown), the elastic member is a spring 300, the spring 300 is located inside the puncture needle 100 and is sleeved on the periphery of the mark needle 200, one end of the spring is fixedly connected with the inner wall of the puncture needle 100, and the other end of the spring is fixedly connected with the mark needle 200 for providing an elastic force for driving the front end of the mark needle 200 to extend out of the front end of the puncture needle 100.

As shown in fig. 1, in another example, the front end and the rear end of the puncture needle 100 have different tube diameters, the puncture needle 100 includes a puncture section 110 at the front end and an expansion section 120 at the rear end, the tube diameter of the expansion section 120 is greater than that of the puncture section 110, the elastic member is a spring 300, the spring 300 is disposed in the expansion section 120, the spring 300 is located inside the puncture needle 100 and is sleeved on the periphery of the marker needle 200, one end of the spring is fixedly connected to the inner wall of the puncture needle 100, and the other end of the spring is fixedly connected to the marker needle 200 for providing an elastic force for driving the front end of the marker needle 200 to extend out of the front end of the puncture needle 100. In this example, the expansion section 120 is provided to facilitate the installation of the spring 300, and improve the assembly efficiency of the positioning device.

As shown in fig. 2, in another example, the puncture needle 100 is made of an insulating material, a gasket 310 made of a metal material is disposed in the expansion section 120, a diameter of the gasket 310 is smaller than a tube diameter of the expansion section 120 and larger than a tube diameter of the puncture section 110, the gasket 310 can be fixed in the expansion section 120 by means of adhesion or the like, a front end of the spring 300 is fixedly connected with the gasket 310, and a rear end of the spring is fixedly connected with the marker needle 200 for providing an elastic force for driving the front end of the marker needle 200 to extend out of the front end of the puncture needle 100. Because the diameter of the washer 310 is larger than the tube diameter of the puncture section 110, the spring 300 can be prevented from sliding into the puncture section 110, and the marker needle body 200 can be kept normally telescopic. In this example, the washer 310 is made of metal, and has a hard texture, and the spring 300 has a good force application effect. It will be appreciated that the lung nodule locating apparatus provided by the present invention can be reused after sterilisation, reducing the cost of treatment of the patient.

The following is a brief description of the use of the positioning device provided by the present invention:

as shown in fig. 1, the lung nodule positioning apparatus provided by the present invention belongs to a cauterization type lung nodule preoperative positioning mode in principle, and has an external hollow insulating puncture needle 100, the puncture needle 100 is used for penetrating the chest wall, an electric knife system can be externally connected to a conductive marking needle 200 in the puncture needle 100, and when the front end of the marking needle 200 contacts with the lung tissue, a cauterization effect is generated at the lung nodule position by triggering a switch of the electric knife system to form a mark. The puncture needle 100 is internally provided with a spring 300 structure, the front end of the mark needle body 200 can retract due to the pressure, the puncture needle 100 is favorable for puncturing the chest wall, the front end of the mark needle body 200 extends out due to the relief of the pressure after the puncture needle 100 penetrates the chest wall, and the damage to lung tissues caused by the mark needle body 200 in the puncturing process is avoided. Specifically, the lung nodule positioning device provided by the utility model positions lung nodules through CT before operation, then uses the puncture needle head 100 to be inserted to the lung surface, the marking needle body 200 is burned at the lung nodule position on the lung surface through an electrotome system to form scab, and then the puncture needle head 100 can be pulled out from the chest.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims

1. A pulmonary nodule localization apparatus, the localization apparatus comprising:

2. The pulmonary nodule localization apparatus of claim 1, wherein the puncture needle is made of an insulating material.

3. A lung nodule locating apparatus as claimed in claim 2, wherein the insulating material is a rigid plastic or glass.

4. A lung nodule localization apparatus as claimed in claim 3 wherein the rigid plastic is polyvinyl chloride, polyethylene, polypropylene or polystyrene.

5. The pulmonary nodule positioning apparatus of claim 1, wherein the resilient member is a spring, the spring is located inside the puncture needle and is disposed around the outer circumference of the marking needle, one end of the spring is fixedly connected to the inner wall of the puncture needle, and the other end of the spring is fixedly connected to the marking needle for providing a resilient force for driving the front end of the marking needle to extend out of the front end of the puncture needle.

6. The pulmonary nodule positioning apparatus of claim 5, wherein the puncture needle comprises a puncture section at a forward end and an expansion section at a rearward end, the expansion section having a larger tube diameter than the puncture section, the spring being disposed within the expansion section.