CN214018904U

CN214018904U - Special needle for implanting radioactive seeds

Info

Publication number: CN214018904U
Application number: CN202022540302.1U
Authority: CN
Inventors: 卢世一
Original assignee: Beijing Ruisi Boyan Technology Development Co ltd
Current assignee: Beijing Ruisi Boyan Technology Development Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-08-24
Anticipated expiration: 2030-11-05

Abstract

The application relates to a special needle for implanting radioactive seeds, which comprises a lining core seat, a lining core, a needle seat and a needle tube; one end of the lining core is fixed with the lining core seat, and the other end of the lining core is a free end which extends outwards; one end of the needle seat is fixedly connected with the needle tube, and the needle tube and the needle seat are both hollow structures and communicated; the needle seat and the needle tube are together detachably sleeved outside the lining core; the top end of the lining core is of a triangular pyramid structure, and when the needle tube is sleeved on the lining core, the top end of the lining core extends to the outside of the needle tube; the top end of the needle tube is of a blunt surface structure; the core print was provided with an ultrasound reflecting structure 10 mm long. The top end of the special needle lining core adopts a triangular pyramid structural design, all the parts are evenly stressed when being inserted into an organism, the special needle is not easy to deviate, the special needle is more accurate in position, and meanwhile, the ultrasonic positioning structure is arranged on the lining core seat, so that the mobile phone of signals and the processing for the signals are facilitated.

Description

Special needle for implanting radioactive seeds

Technical Field

The application relates to the technical field of medical equipment, in particular to a needle special for radioactive seed implantation.

Background

The implantation of radioactive seeds in the solid tumors of human bodies is an advanced tumor minimally invasive treatment method developed in recent years. The radioactive seed implantation treatment has the advantages of minimal invasion, gradual change, high efficiency, small side effect and the like. In actual operation, under the guidance of imaging equipment such as CT or ultrasound, radioactive seeds are generally implanted into a lesion through a special radioactive seed implantation needle, and the successful insertion of the seed implantation needle into the lesion is the key to the success of the operation, so that the seed implantation and the radioactive seed implantation needle are closely related. Particularly, how to ensure the accuracy of the insertion position of the implantation needle and the structure of the implantation needle have direct relation, an implantation needle which is convenient to implant into the body and is not easy to generate deviation in the position during the implantation process is lacking in the market.

Disclosure of Invention

In view of the above, the present application provides a needle for radioactive seed implantation, which is accurate in positioning and convenient to insert into a living body.

A special needle for implanting radioactive seeds comprises a lining core seat, a lining core, a needle seat and a needle tube;

one end of the lining core is fixed with the lining core seat, and the other end of the lining core is a free end which extends outwards; one end of the needle seat is fixedly connected with the needle tube, and the needle tube and the needle seat are both hollow structures and communicated; the needle seat and the needle tube are together detachably sleeved outside the lining core;

the top end of the lining core is of a triangular pyramid structure, and when the needle tube is sleeved on the lining core, the top end of the lining core extends to the outside of the needle tube;

the top end of the needle tube is of a blunt surface structure;

the core print was provided with an ultrasound reflecting structure 10 mm long.

In one embodiment, the lining core, the needle seat and the needle tube are all cylindrical structures.

In one embodiment, the section of the liner core seat perpendicular to the needle tube is circular.

As an implementation mode, the side surface of the lining core seat is provided with anti-slip ribs.

As an implementation mode, the number of the anti-slip convex edges is more than 3, and the anti-slip convex edges are uniformly distributed on the side surface of the lining core seat.

As an embodiment, the anti-slip convex rib and the lining core main body have a gap with a preset distance.

In one embodiment, the outer surface of the needle tube is provided with distance marks.

As an embodiment, the distance mark is a loop line having a width of 1 mm or less.

As an embodiment, the distance marks are color blocks with preset lengths arranged alternately.

As an embodiment, the distance mark is a color block with gradually changed colors from the tip of the needle tube to one end of the needle seat or a circular line for marking.

The utility model has the advantages that: the special needle bushing core top of radioactive seed implantation of this application adopts triangular pyramid structural design, and each side atress is even when inserting the organism, and special needle position is difficult for taking place the skew, makes special needle position more accurate, is provided with supersound location structure simultaneously on the bushing core seat, the cell-phone of the signal of being convenient for and the processing to the signal.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

Fig. 1 illustrates an overall view of a needle dedicated for radioactive seed implantation according to an embodiment of the present application;

FIG. 2 shows a schematic core diagram of a needle specific for radioactive seed implantation according to an embodiment of the present application;

FIG. 3 shows a schematic view of a core block of a needle dedicated for radioactive seed implantation according to an embodiment of the present application;

fig. 4 is a schematic view of a needle tube and a needle tube holder of a needle dedicated for radioactive seed implantation according to an embodiment of the present application.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention or for simplicity in description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

As shown in fig. 1, the radioactive seed implantation needle of this embodiment includes a core holder 100, a core 200, a needle holder 300, and a needle tube 400. Wherein one end of the lining core 200 is fixed with the lining core seat 100, the lining core 200 and the lining core seat 100 are integrated, the lining core 200 can be operated by the lining core seat 100, such as pulling the lining core 200 out of the needle tube 400 or inserting the lining core 200 into the needle tube 400. The other end of the liner 200, which is not connected to the liner base 100, is a free end, extending outward. In operation, the core 200 is inserted into the needle cannula 400 from the free end. One end of the needle base 300 is fixedly connected with the needle tube 400, the needle tube 400 and the needle base 300 are both hollow and communicated, so that the needle base 300 and the needle tube 400 form a closed integrated structure, and the needle base 300 and the needle tube 400 are detachably sleeved outside the lining core 200 together. During the use process, the whole needle is firstly inserted into a living body, the lining core seat 100 is operated after the insertion is finished, the lining core seat 100 and the lining core 200 are pulled out from the needle tube 400 together, the needle tube 400 is kept at the appointed position of the living body, and the radioactive seeds are implanted into the appointed position in subsequent cooperation with the implantation gun.

In the actual operation, since a certain pressure is required for the front end of the core insert 200 to enter the living body, the position of the entire dedicated needle is likely to be deviated during the pushing process. In order to solve this problem, as shown in fig. 2, the top end of the special needle lining core 200 of this embodiment adopts a triangular pyramid structure, when the needle tube 400 is sleeved on the lining core 200, the top end of the lining core 200 extends to the outside of the needle tube 400, and when the special needle is inserted into a living body, the triangular pyramid structure at the top end enters the body most. Each face of the triangular pyramid structure is of a symmetrical structure, and stress is very uniform, and deviation is not easy to occur due to very accurate insertion position.

In addition, the blunt design is adopted at the top end of the needle tube 400 of the embodiment, the top end of the needle tube 400 is of a blunt surface structure without a sharp exposed structure, so that the needle tube 400 left in a living body after the lining core 200 is pulled out cannot injure the living body, and meanwhile, the position of the needle tube 400 is stable and is not easy to move again.

In the present embodiment, an ultrasonic reflection structure 10 mm long is also provided at the liner core holder 100. The insertion signal can be collected by the ultrasonic reflection structure during the insertion of the special needle into the living being, thereby realizing the precise control of the position. And is convenient for detecting the position of the special needle at ordinary times.

Specifically, in the present embodiment, the liner 200 has a cylindrical structure as a main body portion, except that the tip has a triangular pyramid structure. The corresponding needle tube 400 is also of a cylindrical hollow structure, the inside hollow diameter is 0.9 mm, so that radioactive seeds of 0.8 mm can pass through the needle tube conveniently, and meanwhile, the radioactive seeds can be limited in certain positions, and the position of the radioactive seeds for being implanted into organisms is more accurate. The outer side of the needle tube 400 is also of a cylindrical structure, so that the resistance is small, the resistance is small in the process of inserting into an organism, and the injury to the organism is small. The shape of the needle base 300 for connecting and fixing also adopts a cylindrical structure, so that the whole structure is more uniform.

For the liner core holder 100, the body is a cylindrical structure, i.e., the cross-section perpendicular to the direction of the needle cannula 400 is circular. While the outer axial direction may have a variety of variations. As shown in fig. 1, the liner core seat 100 has a waist drum shape, and has the thinnest middle portion, the smallest diameter, and the gradually increased diameters at both ends, thereby forming a structure with a thin middle portion, thick ends, and a circular cross section. The structure is convenient for special taking and control of the lining core 200.

Further, for better control of the core holder 100 and the lining core 200, as shown in fig. 1, in one embodiment, anti-slip ribs are further provided on the side surfaces of the core holder 100. The number of the anti-slip convex edges can be more than 3, and the anti-slip convex edges are uniformly distributed on the side surface of the lining core seat 100. Thereby allowing for convenient control of the liner seat 100 and the liner 200 from all sides and angles.

As shown in fig. 3, in one embodiment, the non-slip lugs are spaced a predetermined distance from the body of the core 200. The gap can be fixed when the core insert 200 is stored separately and the implantation-dedicated needle is stored as a whole. Especially, when the lining core 200 is taken out, the lining core 200 and the lining core seat 100 can be hung and stored through the gap, and the management is more convenient.

As shown in FIG. 1, the outer surface of the needle cannula 400 is provided with distance markings. During implantation, the physician can directly judge the depth of implantation from the distance markers and determine the depth at which implantation continues to be required with reference to the distance markers, thereby precisely controlling the insertion depth of the specialized needle.

Specifically, as an implementation, the distance mark may be a loop line having a width of 1 mm or less. I.e. a thin ring is marked outside the needle tube 400, as is the scale.

As shown in fig. 4, the distance mark may also be in the form of color blocks, where the color blocks with preset lengths arranged alternately represent the distance or the depth. Such as one color block length every 5 mm. In practice, the distance marks may be formed by alternating one color block color, band color and no color, throughout the dedicated needle. A plurality of different colors may also be used as distance markers, respectively. For example, as one possible embodiment, the distance marks are color blocks that gradually change in color from the tip of the needle cannula 400 to the end of the hub 300. The approximate depth of the multiple colors can be directly visually judged from the color change, and the use is more convenient.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A special needle for implanting radioactive seeds is characterized by comprising a lining core seat, a lining core, a needle seat and a needle tube;

the top end of the needle tube is of a blunt surface structure;

the core print was provided with an ultrasound reflecting structure 10 mm long.

2. The needle of claim 1, wherein the core, the needle holder and the needle tube are all cylindrical structures.

3. The needle of claim 1, wherein the hub holder has a circular cross-section perpendicular to the needle axis.

4. The needle of claim 3, wherein the side of the core holder is provided with an anti-slip rib.

5. The needle as claimed in claim 4, wherein the number of the anti-slip ribs is 3 or more, and the anti-slip ribs are uniformly distributed on the side of the core substrate.

6. The needle of claim 4 or 5, wherein the anti-slip rib is spaced apart from the core body by a predetermined distance.

7. The needle of claim 1, wherein the outer surface of the needle tube is provided with distance marks.

8. The needle of claim 7, wherein the distance mark is a circular line having a width of 1 mm or less.

9. The needle for radioactive seed implantation according to claim 7, wherein the distance mark is a color block alternately arranged at a predetermined length.

10. The needle as claimed in claim 7, wherein the distance mark is a color block or a circumferential line for marking, which is a color gradient from the tip of the needle tube to the end of the needle holder.