CN216221633U

CN216221633U - Soft radio frequency ablation needle

Info

Publication number: CN216221633U
Application number: CN202120670257.3U
Authority: CN
Inventors: 陈士国
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2022-04-08
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a soft radio-frequency ablation needle which comprises a connector and an ablation needle body, wherein a metal electrode is fixedly arranged at one end of the ablation needle body, an electric thermocouple is arranged on the inner wall of the metal electrode, and the ablation needle body is made of silicon rubber. According to the utility model, through the arranged ablation needle body, when the ablation needle body is inserted into a patient, the ablation needle body is made of silicon rubber, and compared with a hard needle ablation needle, the ablation needle can be bent or bent at a large angle, so that the ablation needle can enter the human body through a natural orifice of the human body, avoid certain external important blood vessels or trachea, do not hurt the outer surface of an organ, perform ablation treatment on a focus in the organ, and expand the ablation treatment range.

Description

Soft radio frequency ablation needle

Technical Field

The utility model relates to the technical field of radio frequency ablation, in particular to a soft radio frequency ablation needle.

Background

The radiofrequency ablation is to insert an electrode catheter into the heart through femoral artery and vein, internal jugular vein and subclavian vein, find abnormal electrical conduction channel or abnormal beating point in the heart by using electrophysiological mapping technology, and generate resistance electrothermal effect in myocardial tissue by using an electrode at the top end of a large-head catheter to dry and necrose myocardial cells so as to achieve the purpose of treating tachyarrhythmia.

The radiofrequency ablation needle generally comprises a connector, a connecting sleeve and an ablation needle body, and when the radiofrequency ablation needle is used, the ablation needle body is inserted into a patient body, and treatment is carried out through a front-end metal electrode.

However, the rf ablation needle is usually made of hard metal, and when the ablation needle body is inserted into a patient, the hard needle cannot be bent to enter the natural cavity due to the bending of the natural cavity of the human body, such as blood vessels, respiratory tracts, esophagus, and intestinal tract, so that the treatment range of the ablation needle is limited, and therefore, the space to be improved is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a soft radio frequency ablation needle.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a soft radio frequency ablation needle comprises a joint and an ablation needle body, wherein a metal electrode is fixedly arranged at one end of the ablation needle body, an electric thermocouple is arranged on the inner wall of the metal electrode, and the ablation needle body is made of silicon rubber.

Through adopting above-mentioned technical scheme, when will melt the needle body and pierce the patient internal, because the material that melts the needle body is the silicon rubber, compare in hard needle and melt the needle, can carry out wide-angle bending or buckle to can get into the human body through human natural chamber way, avoid certain outside important blood vessel or trachea, and do not harm the surface of organ, melt the treatment to the focus of organ inside, enlarged the treatment scope that melts.

The utility model is further configured to: the inner wall of the ablation needle body is fixedly connected with a plurality of rows of fixing rods distributed at equal intervals, one end, close to each other, of each fixing rod is fixedly connected with the same air delivery pipe, and the air delivery pipes are made of silicon rubber.

By adopting the technical scheme, the ablation needle body 3 can conveniently enter a human body through a natural cavity of the human body through the air delivery pipe made of the silicon rubber material.

The utility model is further configured to: the utility model discloses a needle ablation device, including ablation needle body, inner wall, air pipe, a plurality of bleeder vents, ablation needle body, air pipe.

By adopting the technical scheme, the ablation needle body is cooled by the cooling gas through the gas inlet pipe, the gas conveying pipe and the gas outlet, and a good cooling effect is achieved.

The utility model is further configured to: one end of the joint is provided with a connecting pipe, and the other end of the ablation needle body is fixedly provided with a connecting sleeve.

Through adopting above-mentioned technical scheme, install the ablation needle body through connecting pipe and adapter sleeve.

The utility model is further configured to: connecting sleeve's circumference inner wall top and bottom are all opened there is the movable groove, and the relative one side of movable groove has all opened the slip opening, two the inner wall of slip opening all slides and is provided with the movable rod, and the relative one end of two movable rods is all fixed and is provided with the arc grip block, two the one side that the arc grip block was kept away from each other is all fixed and is provided with the spring, and the one end that the spring was kept away from each other respectively with the relative one side fixed connection of two movable grooves.

Through adopting above-mentioned technical scheme, fix the connecting pipe through spring and arc grip block.

The utility model is further configured to: two the equal fixedly connected with a plurality of lugs of relative one side of arc grip block.

Through adopting above-mentioned technical scheme, increase the frictional force between arc grip block and the connecting pipe through the lug, increase fixed stability.

The utility model is further configured to: two the equal fixedly connected with stopper of one end that the movable rod kept away from each other.

Through adopting above-mentioned technical scheme, prevent through the stopper that the movable rod from falling into inside the connecting sleeve.

The utility model has the beneficial effects that:

1. through the ablation needle body that sets up, when will melt the needle body and pierce the patient internal, because the material that melts the needle body is the silicon rubber, compare in hard needle and melt the needle, can carry out wide-angle bending or buckle to can get into the human body through human natural chamber way, avoid certain outside important blood vessel or trachea, and do not harm the surface of organ, melt the treatment to the focus of organ inside, enlarged the treatment scope of melting.

2. Through gas-supply pipe, intake pipe, gas outlet and the bleeder vent that sets up, when treating, in will cooling gas input gas-supply pipe through the intake pipe, the gas-supply pipe passes through the bleeder vent and gets into the cavity between melting needle body and the gas-supply pipe to cooling down melting needle body, discharging through the gas outlet at last, reach good cooling effect.

3. Through the movable rod that sets up, a spring, arc grip block and lug, when installing the ablation needle body, stimulate two movable rods, overlap the adapter sleeve on the connecting pipe, loosen the movable rod afterwards, under the spring action of spring, make the arc grip block carry out the centre gripping to the connecting pipe, increase the frictional force between grip block and the connecting pipe through the lug to reach stable fixed purpose, during the dismantlement, the pulling movable rod can, reach the purpose of being convenient for install and dismantling.

Drawings

Fig. 1 is a schematic view of an overall structure of a flexible rf ablation needle according to the present invention;

fig. 2 is a partial front structural sectional view of an ablation needle body and a metal electrode of the soft radiofrequency ablation needle provided by the utility model;

fig. 3 is an enlarged view of a structure at a position a of the soft rf ablation needle according to the present invention.

In the figure: 1. a joint; 2. connecting a sleeve; 3. an ablation needle body; 4. a metal electrode; 5. Air holes are formed; 6. fixing the rod; 7. a gas delivery pipe; 8. an air inlet pipe; 9. an air outlet; 10. a connecting pipe; 11. a limiting block; 12. a movable rod; 13. a spring; 14. an arc-shaped clamping plate; 15. a bump; 16. and (4) a thermocouple.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The control mode of the utility model is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the field, and the utility model is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the utility model.

As shown in fig. 1, a soft radiofrequency ablation needle comprises a connector 1 and an ablation needle body 3, wherein a metal electrode 4 is fixedly arranged at one end of the ablation needle body 3, a thermocouple 16 is arranged on the inner wall of the metal electrode 4, and the ablation needle body 3 is made of silicon rubber.

As shown in fig. 1 and 2, the inner wall fixedly connected with multiseriate equidistance distribution's of ablation needle body 3 dead lever 6, and the same gas-supply pipe 7 of one end fixedly connected with that dead lever 6 is close to each other, the material of gas-supply pipe 7 is silicon rubber, the circumference outer wall other end of ablation needle body 3 is opened there is the installation opening, and the inner wall of installation opening is fixed to be provided with the intake pipe 8 that extends to in the gas-supply pipe 7, the one end of gas-supply pipe 7 is opened there are a plurality of bleeder vents 5, the circumference outer wall other end of ablation needle body 3 is opened there are a plurality of gas outlets 9. The ablation needle body 3 can conveniently enter the human body through the natural cavity of the human body through the air delivery pipe 7 made of silicon rubber; through intake pipe 8, gas-supply pipe 7 and gas outlet 9, make cooling gas cool off ablation needle body 3, reach good cooling effect.

As shown in fig. 1, fig. 2 and fig. 3, the one end that connects 1 is provided with connecting pipe 10, the other end of ablation needle body 3 is fixed and is provided with adapter sleeve 2, movable groove has all been opened at adapter sleeve 2's circumference inner wall top and bottom, and the relative one side in movable groove has all been opened the slip opening, the inner wall of two slip openings all slides and is provided with movable rod 12, and the relative one end of two movable rod 12 is all fixed and is provided with arc grip block 14, the one side that two arc grip blocks 14 kept away from each other is all fixed and is provided with spring 13, and the one end that spring 13 kept away from each other respectively with the relative one side fixed connection in two movable grooves, the equal a plurality of lugs 15 of the equal fixedly connected with in relative one side of two arc grip blocks 14, the equal fixedly connected with stopper 11 of the one end that two movable rod 12 kept away from each other. The ablation needle body 3 is installed through the connecting pipe 10 and the connecting sleeve 2; the connecting pipe 10 is fixed through a spring 13 and an arc-shaped clamping plate 14; the friction force between the arc-shaped clamping plate 14 and the connecting pipe 10 is increased through the lug 15, so that the stability of fixation is increased; the movable rod 12 is prevented from falling into the interior of the connection sleeve 2 by the stopper 11.

The working principle is as follows: when will melt needle body 3 and pierce the patient in vivo, because the material of melting needle body 3 is the silicon rubber, compare in hard needle and melt the needle, can carry out wide-angle bending or buckle to can get into the human body through human natural chamber way, avoid certain outside important blood vessel or trachea, and do not harm the surface of organ, melt the treatment to the focus of organ inside, enlarged the treatment scope of melting.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The soft radio-frequency ablation needle comprises a connector (1) and an ablation needle body (3), and is characterized in that a metal electrode (4) is fixedly arranged at one end of the ablation needle body (3), an electric thermocouple (16) is arranged on the inner wall of the metal electrode (4), and the ablation needle body (3) is made of silicon rubber.

2. The soft radio-frequency ablation needle as claimed in claim 1, wherein a plurality of rows of fixing rods (6) are fixedly connected to the inner wall of the ablation needle body (3) and are distributed equidistantly, one end, close to each other, of each fixing rod (6) is fixedly connected with the same air delivery pipe (7), and the air delivery pipes (7) are made of silicon rubber.

3. The soft radio-frequency ablation needle as claimed in claim 2, wherein the other end of the circumferential outer wall of the ablation needle body (3) is provided with an installation port, the inner wall of the installation port is fixedly provided with an air inlet pipe (8) extending into the air delivery pipe (7), one end of the air delivery pipe (7) is provided with a plurality of air holes (5), and the other end of the circumferential outer wall of the ablation needle body (3) is provided with a plurality of air outlets (9).

4. The soft radio-frequency ablation needle as claimed in claim 1, wherein a connecting tube (10) is arranged at one end of the joint (1), and a connecting sleeve (2) is fixedly arranged at the other end of the ablation needle body (3).

5. The soft radio-frequency ablation needle as claimed in claim 4, wherein the connecting sleeve (2) has movable grooves on the top and bottom of the inner circumferential wall, and sliding openings are formed on the opposite sides of the movable grooves, movable rods (12) are slidably disposed on the inner walls of the two sliding openings, and arc-shaped holding plates (14) are fixedly disposed on the opposite ends of the two movable rods (12), springs (13) are fixedly disposed on the surfaces of the two arc-shaped holding plates (14) away from each other, and the ends of the springs (13) away from each other are fixedly connected to the surfaces of the two movable grooves respectively.

6. A soft RF ablation needle according to claim 5, wherein a plurality of projections (15) are fixedly connected to the opposite surfaces of the two arc-shaped holding plates (14).

7. The soft radiofrequency ablation needle of claim 6, wherein the ends of the two movable rods (12) far away from each other are fixedly connected with a limiting block (11).