CN213552188U

CN213552188U - Multi-cavity needle tube based on magnetic navigation positioning

Info

Publication number: CN213552188U
Application number: CN202021725650.XU
Authority: CN
Inventors: 雷晓方; 王可奇; 陈杰
Original assignee: Shanghai Jingmai Medical Technology Co ltd
Current assignee: Shanghai Jingmai Medical Technology Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-06-29
Anticipated expiration: 2030-08-18

Abstract

The utility model provides a multicavity way needle tubing based on magnetic navigation location, include: the multi-cavity needle tube 1, the needle seat 3 and the luer connector piston 5; the multi-cavity needle tube 1 comprises a plurality of cavities, one end of the multi-cavity needle tube 1 is connected into the needle seat 3, and the needle seat 3 is respectively provided with a plurality of channels communicated with the cavities one by one; the luer plunger 5 is attached to the outer end of the channel. The design of multiple cavities realizes different operation activities at the same time. The problems that after the needle core is pulled out, a cavity channel is not blocked, and pneumothorax and the like are possibly caused are solved through the luer joint piston.

Description

Multi-cavity needle tube based on magnetic navigation positioning

Technical Field

The utility model relates to the field of medical equipment, specifically, relate to a multicavity way needle tubing based on magnetic navigation location.

Background

With the progress of science and technology, more and more surgical and interventional operations have changed greatly, the former operations mostly adopt operation, and the like, and now with the development of medical technology, the comprehensive level of doctors is improved, and the minimally invasive treatment begins to be popularized in various hospitals.

The most minimally invasive instruments used at present are a coaxial guide needle and a coaxial biopsy needle, a doctor can accurately penetrate the coaxial guide needle into a focus of a patient according to experience under the guidance of a CT image, a medical channel is established in the body of the patient, biopsy sampling, ablation treatment, medicine injection and the like are carried out through the channel, the body trauma of the patient is greatly reduced, and recovery is fast.

Patent document CN209826799U discloses a spiral shell rotary-cut type coaxial puncture biopsy needle, which realizes coaxial biopsy of one needle, ensures that a coaxial channel is always in a closed state with the outside, and can also realize injection of a hemostatic agent to a tissue to be drawn while drawing materials in puncture to prevent internal bleeding of a tumor and reduce operation risk. However, the coaxial guide needle used at present has several limitations:

firstly, the coaxial guide needle is designed in a single channel at the present stage, only single operation can be carried out, other operations cannot be carried out simultaneously when biopsy or medicine injection is carried out, and the coaxial guide needle needs to be repeatedly inserted and pulled in the channel, so that the operation time is long, and the precision is possibly influenced; when the treatment is carried out, the inner needle core needs to be pulled out first, and the problems of bleeding, pneumothorax and the like can be caused when the operation is carried out.

Secondly, the coaxial guide needle at present mainly is used for blind puncture by doctors according to experience of CT images, and the operation precision is poor, so that the coaxial guide needle cannot be punctured to the focus below 1 cm.

SUMMERY OF THE UTILITY MODEL

To the defects in the prior art, the utility model aims at providing a multicavity way needle tubing based on magnetic navigation location.

According to the utility model provides a pair of multicavity way needle tubing based on magnetic navigation location, include: the multi-cavity needle tube 1, the needle seat 3 and the luer connector piston 5;

the multi-cavity needle tube 1 comprises a plurality of cavities, one end of the multi-cavity needle tube 1 is connected into the needle seat 3, and the needle seat 3 is respectively provided with a plurality of channels communicated with the cavities one by one;

the luer plunger 5 is attached to the outer end of the channel.

Preferably, an electromagnetic sensor 4 is arranged in one of the plurality of channels, and the end of the electromagnetic sensor 4 is led out from a channel corresponding to the luer connector piston 5.

Preferably, the outer wall of the multi-cavity needle tube 1 is movably connected with a locator 2, and the locator 2 can axially move on the outer wall of the multi-cavity needle tube 1.

Preferably, the number of the cavities of the multi-cavity needle tube 1 comprises two or three.

Preferably, the multi-cavity needle tube 1 is inserted into the needle seat 3 and fixed by UV glue.

Preferably, the other end of the multi-cavity needle tube 1 is a sharp end.

Preferably, the section of the multi-cavity needle tube 1 is circular or oval.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the design of multiple cavities realizes different operation activities at the same time.

2. The problems that after the needle core is pulled out, a cavity channel is not blocked, and pneumothorax and the like are possibly caused are solved through the luer joint piston.

3. Through the structure of an electromagnetic sensor arranged in a cavity, puncture positioning can be realized by combining an electromagnetic navigation technology, the positioning precision can reach 2mm, and the problem of inaccurate puncture at the present stage is effectively solved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a side sectional view of the present invention;

FIG. 3 is a cross-sectional view of a multi-lumen needle cannula;

FIG. 4 is a cross-sectional view of a multi-lumen needle cannula.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the utility model provides a multi-lumen needle tube based on magnetic navigation positioning, mainly includes: a multi-cavity needle tube 1, a needle seat 3 and a luer connector piston 5.

The multi-cavity needle tube 1 comprises a plurality of cavities 11, one end of the multi-cavity needle tube 1 is connected into the needle base 3, a plurality of channels 31 communicated with the cavities one by one are respectively arranged on the needle base 3, and the Ruhr joint piston 5 is connected to the outer ends of the channels 31. In the embodiment of fig. 1 and 2, the number of the channels is two, but the invention is not limited thereto. The other end of the multi-cavity needle tube 1 is a sharp end for puncturing into a human body. The multi-cavity needle tube 1 is connected in the needle seat 3 in an inserting mode and is fixed through UV glue, so that the non-toxicity and non-volatilization are guaranteed.

An electromagnetic sensor 4 is arranged in one of the plurality of cavities, and the tail end of the electromagnetic sensor 4 is led out from a channel corresponding to the luer connector piston 5. The outer wall of the multi-cavity needle tube 1 is movably connected with a positioner 2, and the positioner 2 can axially move on the outer wall of the multi-cavity needle tube 1.

The utility model discloses a use as follows:

when an operation is started, a needle with a proper length specification is selected according to the focus position of a patient, the positioner is adjusted to a required puncture depth position, then puncture is carried out according to an electromagnetic navigation image, after the needle reaches a designated position, a luer connector piston of a required cavity is taken down, and the cavity is utilized to carry out operation operations such as biopsy sampling or treatment.

As shown in FIGS. 3 and 4, the number of the channels 11 of the multi-lumen needle cannula 1 usually includes two or three, and the cross section thereof is circular or elliptical.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A multi-lumen needle cannula based on magnetic navigation positioning, comprising: a multi-cavity needle tube (1), a needle seat (3) and a luer joint piston (5);

the multi-cavity needle tube (1) comprises a plurality of cavities, one end of the multi-cavity needle tube (1) is connected into the needle seat (3), and the needle seat (3) is respectively provided with a plurality of channels communicated with the cavities one by one;

the luer connector piston (5) is connected at the outer end of the channel.

2. A multi-lumen needle cannula based on magnetic navigation positioning according to claim 1, wherein an electromagnetic sensor (4) is arranged in one of the plurality of lumens, and the end of the electromagnetic sensor (4) is led out from the corresponding channel of the luer connector piston (5).

3. A multi-lumen needle cannula based on magnetic navigation positioning according to claim 1, characterized in that a locator (2) is movably connected to the outer wall of the multi-lumen needle cannula (1), the locator (2) being axially movable on the outer wall of the multi-lumen needle cannula (1).

4. A multi-lumen needle cannula based on magnetic navigation positioning according to claim 1, wherein the number of lumens of the multi-lumen needle cannula (1) comprises two or three.

5. A multi-lumen needle cannula based on magnetic navigation positioning according to claim 1, characterized in that the multi-lumen needle cannula (1) is inserted in the needle hub (3) and fixed by UV glue.

6. A multi-lumen needle cannula based on magnetic navigation positioning according to claim 1, wherein the other end of the multi-lumen needle cannula (1) is a pointed end.

7. A multi-lumen needle cannula based on magnetic navigation positioning according to claim 1, wherein the cross-section of the multi-lumen needle cannula (1) is circular or elliptical.