CN218852793U

CN218852793U - Pulmonary nodule puncture positioning needle

Info

Publication number: CN218852793U
Application number: CN202320084712.0U
Authority: CN
Inventors: 王从晓; 胡效坤; 孙吉书; 李伟; 姜冠群; 姜平全; 田川
Original assignee: Affiliated Hospital of University of Qingdao
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2023-01-29
Filing date: 2023-01-29
Publication date: 2023-04-14
Anticipated expiration: 2033-01-29

Abstract

The utility model discloses a pulmonary nodule puncture positioning needle, which comprises a positioning needle sleeve component, a silk thread component passing through the positioning needle sleeve component, a protection valve arranged at the end part of the positioning needle sleeve component, and an injection valve arranged on the positioning needle sleeve component and communicated with the positioning needle sleeve component; the positioning needle sleeve assembly comprises an outer sheath and an inner core which is inserted into the outer sheath, and the end part of the silk thread assembly protrudes out of the inner core and is positioned in the outer sheath; when the device is positioned, the protection valve is withdrawn, the inner core is pushed, and the front section of the silk thread component protrudes out of the outer sheath into the pulmonary nodule. The silk thread assembly is arranged into three sections, and meanwhile, the silk thread assembly can be easily recovered to the outside of the body after being released and assembled again for secondary release through the deformation capacity of the memory alloy spring section, so that the silk thread assembly has high fault-tolerant rate and is beneficial to accurate positioning of pulmonary nodules of clinicians. An injection valve is arranged on the sheath and is used for conveying anesthetic liquid medicine to realize puncture and anesthesia integration.

Description

Pulmonary nodule puncture positioning needle

Technical Field

The utility model relates to a medical pilot pin technical field, more specifically say, relate to a pulmonary nodule puncture pilot pin.

Background

With the development of medical imaging technology, the detection rate of small lung nodules increases year by year, and currently, for lung nodules larger than 1cm, a doctor determines the positions of the nodules by means of visual observation or finger palpation to perform resection, while for nodules smaller than 1cm and deep in the lung, the failure rate of treatment in the above manner is very high, and the resection range must be expanded, so that the operation risk is increased.

The lung nodule preoperative positioning under the CT guidance is widely applied at present, and the lung nodule can be positioned under the CT guidance before an operation, so that the aim of accurate resection is fulfilled. However, most of the pulmonary nodule puncture positioning needles commonly used in the market are disposable release devices, and once released, the pulmonary nodule puncture positioning needles cannot be further adjusted. For the nodules on the superficial position of the lung, whether the puncture needle penetrates through the pleura to enter the lung or not is sometimes difficult to distinguish on CT, and once the puncture needle is released into the pleural cavity, the locating is failed, and the pleura is easy to damage. Meanwhile, the positioning needle cannot be designed in an integrated mode of puncture and anesthesia, deep tissue and pleura anesthesia are difficult to carry out on patients with obese body types, and in rare cases, due to clinical negligence of doctors, the situation of positioning errors sometimes happens, and serious medical accidents can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pulmonary nodule puncture pilot pin for solve the technical problem who exists among the above-mentioned background art.

The technical scheme of the utility model provides a pulmonary nodule puncture positioning needle, including positioning needle cover assembly, thread assembly passing through the positioning needle cover assembly, protection valve arranged at the end of the positioning needle cover assembly, and injection valve arranged on the positioning needle cover assembly and communicated with the positioning needle cover assembly;

the positioning needle sleeve assembly comprises an outer sheath and an inner core inserted into the outer sheath, and the end part of the silk thread assembly protrudes out of the inner core and is positioned in the outer sheath; when the device is positioned, the protection valve is withdrawn, the inner core is pushed, and the front section of the silk thread component protrudes out of the outer sheath and enters the pulmonary nodule.

In a preferred embodiment, the wire assembly comprises a cotton segment, a plastic segment and a memory alloy spring segment which are sequentially connected, wherein the cotton segment is located outside the body, the plastic segment is arranged through the inner core, the memory alloy spring segment is arranged through the inner core, and the memory alloy spring segment extends into a lung nodule when being positioned.

In a preferred embodiment, a T-shaped end cap is sleeved on the end portion of the inner core, a limiting clamping groove is formed in the protection valve, the horizontal portion of the T-shaped end cap is clamped in the limiting clamping groove, a limiting projection is arranged on the injection valve, a limiting platform is arranged on the protection valve, and the limiting projection is clamped on the limiting platform.

In a preferred embodiment, a plurality of scale mark rings are equidistantly arranged on the surface of the outer sheath, and the distance between every two adjacent scale mark rings is 5-10mm.

In a preferred embodiment, a vernier is sleeved on the outer sheath.

In a preferred embodiment, the injection valve is a Y-valve.

The utility model discloses technical scheme's beneficial effect is:

the silk thread assembly is arranged into three sections, and meanwhile, the silk thread assembly can be easily recovered to the outside of the body after being released and assembled again for secondary release through the deformation capacity of the memory alloy spring section, so that the silk thread assembly has high fault-tolerant rate and is beneficial to accurate positioning of pulmonary nodules of clinicians. An injection valve is arranged on the sheath and is used for conveying anesthetic liquid medicine to realize puncture and anesthesia integration.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention,

figure 2 is an exploded view of the structure of the utility model,

figure 3 is a partial structure diagram of the utility model,

fig. 4 is a sectional view of the present invention.

Description of reference numerals: the device comprises a positioning needle sleeve assembly 1, an inner core 11, an outer sheath 12, a silk thread assembly 2, a cotton thread segment 21, a plastic segment 22, a memory alloy spring segment 23, a protection valve 3, a limiting clamping groove 31, a limiting platform 32, a 4T-shaped end cap, an injection valve 5, a limiting bump 51, a scale marking ring 6 and a vernier 7.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

As shown in fig. 1-4, the utility model provides a pulmonary nodule puncture positioning needle, including positioning needle cover subassembly 1, pass silk thread subassembly 2, the setting that positioning needle cover subassembly 1 set up are in the protection valve 3 of 1 tip of positioning needle cover subassembly, and set up on the positioning needle cover subassembly 1 and with the injection valve 5 that positioning needle cover subassembly 1 intercommunication set up. The positioning needle sleeve assembly 1 comprises an outer sheath 12 and an inner core 11 inserted into the outer sheath 12, and the end of the thread assembly 2 protrudes out of the inner core 11 and is positioned in the outer sheath 12; when the protective valve 3 is withdrawn, the inner core 11 is pushed, and the front section of the wire assembly 2 protrudes out of the outer sheath 12 into the pulmonary nodule.

The outer sheath 12 and the inner core 11 jointly form the positioning needle sleeve assembly 1, the inner core 11 is arranged in the outer sheath 12, and the silk threads are arranged in the inner core 11. When the device is not used, the protection valve 3 positions the inner core 11 to ensure that the end part of the silk thread component 2 is positioned in the outer sheath 12, when puncture positioning is needed, the positioning needle integrally penetrates through a body to reach a puncture part, the protection valve 3 is removed, the inner core 11 and the silk thread component 2 are pushed out of the outer sheath 12 together, so that the positioning end of the silk thread component 2 is pushed into a pulmonary nodule, positioning is further achieved, and if the positioning needle needs to be reassembled in an operation or the silk thread component 2 needs to be withdrawn after the operation, the external silk thread component 2 is withdrawn outside the body.

Silk thread subassembly 2 is including connecting gradually cotton segment 21, plastics section 22 and the memory alloy spring section 23 that sets up, cotton segment 21 is located extracorporeally, plastics section 22 passes inner core 11 sets up, memory alloy spring section 23 passes inner core 11 sets up, and memory alloy spring section 23 stretches into in the pulmonary nodule when the location. Cotton segment 21 is located extracorporeally, it is external that the silk thread subassembly 2 is whole to be withdrawn from convenient, middle plastics section 22 plays the effect of connecting cotton segment 21 and memory alloy spring section 23, memory alloy spring section 23 plays the positioning action, its diameter is 0.1mm, when stretching into in the lung nodule, because temperature variation produces the bending and then realizes effective location, when needs are withdrawn from, direct pulling cotton segment 21, memory alloy spring section 23 is straightened by the crookedness, and then can withdraw from smoothly, high fault-tolerant rate, and convenient for use, the location is accurate, has higher fault-tolerant rate.

11 tip cover of inner core is equipped with a T font end cap 4, be provided with a spacing draw-in groove 31 on the protection valve 3, the horizontal part card of T font end cap 4 is in the spacing draw-in groove 31, be provided with spacing lug 51 on the injection valve 5, be provided with spacing platform 32 on the protection valve 3, spacing lug 51 card is in on the spacing platform 32. The protection valve 3 is clamped at the joint of the inner core 11 and the injection valve 5 from one side and is used for preventing the inner core 11 from protruding out of the outer sheath 12 and preventing the inner core 11 from pushing out the memory spring section 23 at the tail end of the silk thread component 2 out of the outer sheath 12 due to misoperation and the like before an operation.

The surface of the outer sheath 12 is equidistantly provided with a plurality of scale mark rings 6, and the distance between every two adjacent scale mark rings 6 is 5-10mm. The scale mark ring 6 has a measuring function on the puncture depth so as to accurately measure the insertion depth of the positioning needle.

The outer sheath 12 is sleeved with a vernier 7. After the lung nodule of the patient is scanned by an image, the puncture depth is measured, and the vernier 7 sleeved on the outer surface of the outer sheath 12 is adjusted to the position of the scale marking ring 6 which is suitable for the outer sheath 12, so that the condition that the puncture of the doctor in the operation is too deep or too shallow is prevented.

The injection valve 5 is a Y-shaped valve, is communicated with the outer sheath 12 and is used for conveying anesthetic liquid medicine to realize puncture and anesthesia integration.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present disclosure. Structures, devices and methods of operation not specifically described or illustrated in the present application are not specifically illustrated or described, but are generally practiced in the art without limitation.

Claims

1. The utility model provides a pulmonary nodule puncture pilot needle which characterized in that: the injection needle comprises a positioning needle sleeve assembly, a thread assembly penetrating through the positioning needle sleeve assembly, a protection valve arranged at the end part of the positioning needle sleeve assembly, and an injection valve arranged on the positioning needle sleeve assembly and communicated with the positioning needle sleeve assembly;

the positioning needle sleeve assembly comprises an outer sheath and an inner core inserted into the outer sheath, and the end part of the silk thread assembly protrudes out of the inner core and is positioned in the outer sheath; when the device is positioned, the protection valve is withdrawn, the inner core is pushed, and the front section of the silk thread component protrudes out of the outer sheath into the pulmonary nodule.

2. The pulmonary nodule puncturing and positioning needle of claim 1, wherein: the silk thread subassembly is including the cotton line section, plastics section and the memory alloy spring section that connect gradually the setting, the cotton line section is located extracorporeally, the plastics section passes the inner core sets up, the memory alloy spring section passes the inner core sets up, and the memory alloy spring section stretches into in the pulmonary nodule when the location.

3. The pulmonary nodule puncturing and positioning needle of claim 1, wherein: the injection valve is characterized in that a T-shaped end cap is sleeved at the end part of the inner core, a limiting clamping groove is formed in the protection valve, the horizontal part of the T-shaped end cap is clamped in the limiting clamping groove, a limiting convex block is arranged on the injection valve, a limiting platform is arranged on the protection valve, and the limiting convex block is clamped on the limiting platform.

4. The pulmonary nodule puncturing and positioning needle of claim 1, wherein: the scale mark rings are arranged on the surface of the outer sheath at equal intervals, and the distance between every two adjacent scale mark rings is 5-10mm.

5. The pulmonary nodule puncturing and positioning needle of claim 1, wherein: the outer sheath is sleeved with a vernier.

6. The pulmonary nodule puncturing and positioning needle of claim 1, wherein: the injection valve is a Y-shaped valve.