CN113829570A

CN113829570A - Radio frequency pen processing method

Info

Publication number: CN113829570A
Application number: CN202010581395.4A
Authority: CN
Inventors: 马志伟; 刘晓芳; 张志武; 马帅; 周庆亮
Original assignee: Beijing Med Zenith Medical Scientific Co Ltd
Current assignee: Beijing Med Zenith Medical Scientific Co Ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-12-24
Anticipated expiration: 2040-06-23
Also published as: CN113829570B

Abstract

The invention provides a radio frequency pen processing method. The radio frequency pen processing method comprises the following steps: step S1: extending part of the connecting piece into a first mold for injection molding to form a first injection molding piece, wherein the first injection molding piece comprises a first limiting part; step S2: the two electrode plates are respectively arranged on two sides of the first injection molding part, the first limiting part positions the two electrode plates, and the two electrode plates and the first injection molding part after assembly are installed in a second mold for injection molding to form the radio frequency pen. The invention effectively solves the problems that the combination stability of the radio frequency pen is poor, and the size fluctuation of parts is not easy to match so as to influence the normal use of the radio frequency pen in the prior art.

Description

Radio frequency pen processing method

Technical Field

The invention relates to the technical field of medical instruments, in particular to a radio frequency pen processing method.

Background

Currently, the radiofrequency ablation executing equipment comprises a radiofrequency ablation forceps and a radiofrequency pen. The radio frequency pen and the radio frequency ablation forceps are used in a combined mode and used for radio frequency ablation treatment of atrial fibrillation surgery. The radio frequency pen can perform radio frequency ablation, electrocardiogram mapping and stimulation pacing in the atrial fibrillation radio frequency ablation treatment process, flexibly select mapping positions, reduce the complexity of a radio frequency ablation operation and reduce operation time.

However, in the prior art, the radio frequency pen usually adopts the glue bonding mode to fix the electrode plate, resulting in the structural stability of the radio frequency pen to be poor, and there is the risk that the electrode plate drops, and because several spare parts are required to cooperate when bonding, this process relies on manual control completely, and cooperation is bad between the spare part, and these all can influence the normal use of radio frequency pen.

Disclosure of Invention

The invention mainly aims to provide a radio frequency pen processing method to solve the problems that in the prior art, the combination stability of a radio frequency pen is poor, and the normal use of the radio frequency pen is influenced because the size fluctuation of parts is not easy to match.

In order to achieve the above object, the present invention provides a method for processing a radio frequency pen, comprising: step S1: extending part of the connecting piece into a first mold for injection molding to form a first injection molding piece, wherein the first injection molding piece comprises a first limiting part; step S2: the two electrode plates are respectively arranged on two sides of the first injection molding part, the first limiting part positions the two electrode plates, and the two electrode plates and the first injection molding part after assembly are installed in a second mold for injection molding to form the radio frequency pen.

Furthermore, the first limiting part is a limiting protrusion, the electrode plate is provided with a limiting concave part, and the limiting protrusion extends into the limiting concave part and is limited and stopped by the limiting concave part.

Further, the first injection molded part further comprises: the injection molding body is provided with a first limiting part; the second limiting part is arranged at the end part, close to the connecting piece, of the injection molding body, and the second limiting part and the plate surface of the electrode plate limit stop.

Further, the injection molding body is of a plate-shaped structure, the second limiting part is provided with a first limiting face and a second limiting face which are perpendicular to the plate-shaped structure, the first limiting face and the second limiting face are arranged in parallel, and the first limiting face and the second limiting face are respectively in contact with two end faces of the electrode plate and limit stop.

Further, the first injection-molded part includes a first side, a first top surface and a second side, which are connected in sequence, and the step S2 includes: step S21: loading the two assembled electrode plates and the first injection molding piece into a second mold; step S22: and injection molding the first injection molding piece and the non-ablation parts of the two electrode plates to form the radio frequency pen.

Further, each electrode plate comprises a third side, a second top surface and a fourth side which are connected in sequence, and the non-ablation part comprises the third side and/or the fourth side.

Further, the first injection-molded part includes a first side, a first top surface and a second side, which are connected in sequence, and the step S2 includes: step S21: loading the two assembled electrode plates and the first injection molding piece into a second mold; step S22: performing injection molding on the first injection molding piece and at least part of the side edges of the two electrode plates to form a second injection molding piece; step S23: the part that lies in between two plate electrodes on the top of second injection molding is the part of moulding plastics of son, moulds plastics the part of moulding plastics and the partial face that two plate electrodes lie in the second injection molding to form the radio frequency pen.

Further, each electrode plate includes a third side, a second top surface and a fourth side, which are connected in sequence, and in step S22, the first side, the second side and the third side and/or the fourth side of the two electrode plates are injection-molded.

Furthermore, the first injection molding piece is provided with a first hole-shaped structure, each electrode plate is provided with a second hole-shaped structure, the inner surface of the second mold is provided with a protruding part, and the protruding parts penetrate through the first hole-shaped structure and the second hole-shaped structure to limit the first injection molding piece and the second mold.

Further, along the outer circumference of the radio frequency pen, the exposed ablation parts of the electrode plates have the same width; each electrode plate comprises a third side, a second top surface and a fourth side which are connected in sequence; wherein the ablation portion includes: a second top surface; and/or a third side; and/or a fourth side.

By applying the technical scheme of the invention, in the injection molding process, part of the connecting piece extends into the first mold for injection molding to form the first injection molding piece, and the first injection molding piece comprises the first limiting part. The first limiting portion positions the electrode plates, accuracy of the installation positions of the electrode plates is further guaranteed, and the two assembled electrode plates and the first injection molding piece are installed in the second mold to be subjected to injection molding, so that the radio frequency pen is formed. Because the radio frequency pen is molded in an integral injection molding mode, the problems that in the prior art, the combination stability of the radio frequency pen is poor, and the normal use of the radio frequency pen is influenced due to the fact that the size of parts is fluctuated and is not easy to match are solved, and the problem that the normal use of the radio frequency pen is influenced due to the fact that the electrode plate falls off or shifts is avoided. Meanwhile, the injection molding process simplifies the production flow, improves the production efficiency and shortens the processing period.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of a first embodiment of a first injection molded part formed according to the RF pen processing method of the present disclosure;

FIG. 2 shows a front view of the first injection molded part of FIG. 1;

FIG. 3 shows a side view of the first injection molded part of FIG. 1;

FIG. 4 shows a perspective view of the first injection molded part of FIG. 1 assembled with an electrode plate;

FIG. 5 shows a front view of the first injection molded part of FIG. 4 assembled with an electrode plate;

FIG. 6 is a schematic perspective view of a second embodiment of a second injection molded part formed by the RF pen processing method of the present invention;

FIG. 7 shows a front view of the second injection molded part of FIG. 6;

FIG. 8 shows a side view of the second injection molded part of FIG. 6;

FIG. 9 is a schematic perspective view of a second embodiment of a RF pen formed according to the RF pen processing method of the present invention;

FIG. 10 shows a front view of the RF pen of FIG. 9;

FIG. 11 shows a side view of the RF pen of FIG. 9;

fig. 12 shows a flowchart of a first embodiment of a method for manufacturing a rf pen according to the present invention.

Wherein the figures include the following reference numerals:

10. a connecting member; 20. a first injection molded part; 21. a first limiting part; 22. injection molding the body; 23. a second limiting part; 231. a first limiting surface; 232. a second limiting surface; 24. a first side edge; 25. a second side edge; 26. a first porous structure; 30. an electrode plate; 31. a limiting concave part; 32. a third side; 33. a second top surface; 34. a fourth side; 35. a second porous structure; 40. a second injection molded part; 401. a second injection molded part body portion; 402. a third top surface; 41. a sub-injection molding part.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.

In order to solve the problems that in the prior art, the combination stability of a radio frequency pen is poor, and the size of parts is not easy to match, so that the normal use of the radio frequency pen is influenced, the application provides a radio frequency pen processing method.

Example one

As shown in fig. 12, the rf pen processing method includes:

step S1: extending part of the connecting piece 10 into a first mould for injection molding to form a first injection molded part 20, wherein the first injection molded part 20 comprises a first limiting part 21;

step S2: the two electrode plates 30 are respectively arranged on two sides of the first injection molding part 20, the first limiting part 21 positions the two electrode plates 30, and the two assembled electrode plates 30 and the first injection molding part 20 are placed in a second mold for injection molding to form the radio frequency pen.

By applying the technical scheme of the embodiment, in the injection molding process, a part of the connecting part 10 extends into the first mold for injection molding to form the first injection molded part 20, and the first injection molded part 20 comprises the first limiting part 21. The first limiting portion 21 positions the electrode plates 30, so that accuracy of mounting positions of the electrode plates 30 is guaranteed, and the two assembled electrode plates 30 and the first injection molding part 20 are installed in a second mold for injection molding to form the radio frequency pen. Because the radio frequency pen is molded in an integral injection molding mode, the problems that the radio frequency pen in the prior art is poor in structural stability and influences normal use of the radio frequency pen are solved, and the radio frequency pen is prevented from being influenced by falling or shifting of the electrode plate. Meanwhile, the injection molding process simplifies the production flow, improves the production efficiency and shortens the processing period.

As shown in fig. 1 to 5, the first limiting portion 21 is a limiting protrusion, the electrode plate 30 has a limiting recess 31, and the limiting protrusion extends into the limiting recess 31 and is limited and stopped by the limiting recess 31. Like this, spacing arch is the columnar structure, and spacing concave part 31 is the through-hole, and the columnar structure stretches into in the through-hole and with the spacing backstop of the pore wall of through-hole, and then realizes first spacing portion 21 to the location of plate electrode 30, avoids taking place the phenomenon that plate electrode 30 shifted and influence the processingquality of radio frequency pen in the process of moulding plastics.

The structure of the first stopper 21 is not limited to this. Optionally, the first limiting portion 21 is a limiting concave portion, and the electrode plate 30 has a limiting protrusion, which extends into the limiting concave portion to limit and stop with the limiting concave portion.

As shown in fig. 1 to 5, the first injection-molded part 20 further includes an injection-molded body 22 and a second stopper 23. Wherein, the first limiting part 21 is arranged on the injection molding body 22. The second limiting part 23 is arranged at the end part of the injection molding body 22 close to the connecting piece 10, and the second limiting part 23 is limited and stopped with the plate surface of the electrode plate 30. Thus, the second limiting portion 23 limits and stops the electrode plate 30, and the electrode plate 30 is positioned by the second limiting portion 23. The second limiting part 23 has a wire passing space for a wire to pass through, so that the internal structural layout of the radio frequency pen is more reasonable and compact.

Specifically, the number of the electrode plates 30 is two, the two electrode plates 30 are respectively installed on two sides of the first injection molding part 20, the number of the first limiting parts 21 is two, the two first limiting parts 21 and the two electrode plates 30 are arranged in a one-to-one correspondence manner, and then the first injection molding part 20 is used for positioning the two electrode plates 30. Meanwhile, the second limiting portions 23 can limit the two electrode plates 30, respectively. Meanwhile, the second limiting portion 23 has a wire passing space for the lead wire to pass through, and the lead wires connected to the electrode plates 30 respectively pass through the wire passing space and then are connected to the host.

As shown in fig. 1, the injection molding body 22 is a plate-shaped structure, the second limiting portion 23 has a first limiting surface 231 and a second limiting surface 232 perpendicular to the plate-shaped structure, the first limiting surface 231 and the second limiting surface 232 are parallel to each other, and the first limiting surface 231 and the second limiting surface 232 are respectively in contact with two end surfaces of the electrode plate 30 and limit the stop. Thus, the arrangement ensures that the second limiting part 23 can limit the electrode plate 30, and the limiting reliability of the second limiting part 23 is further improved.

Specifically, in the injection molding process, the first limiting surface 231 and the second limiting surface 232 can contact with two end surfaces of each electrode plate 30 and limit and stop the electrode plates, so that the injection molding accuracy is improved, and a wire passing space can be formed between each electrode plate 30 and the injection molding body 22.

In this embodiment, the first injection-molded part 20 includes a first side 24, a first top surface and a second side 25 connected in sequence, and step S2 includes:

step S21: loading the two assembled electrode plates 30 and the first injection molding part 20 into a second mold;

step S22: the first injection molded part 20 and the non-ablated parts of the two electrode plates 30 are injection molded to form the radio frequency pen.

As shown in fig. 1-5, the first injection molded part 20 is formed after the first injection molding. And then, performing second injection molding on the first side edge 24, the second side edge 25, the top of the first injection molded part 20 and at least part of the side edges of the two electrode plates 30 to form the radio frequency pen. Like this, the radio frequency pen passes through secondary injection moulding to make the position of plate electrode 30 in the radio frequency pen more accurate, in order to ensure that the radio frequency pen can normal use, promoted the use reliability of radio frequency pen. Wherein the first injection molding part 20 and the two electrode plates 30 are injection molded, and the second top surfaces 33 of the electrode plates 30 are exposed and not covered.

In the present embodiment, the first injection-molded part 20 is formed by one-shot injection molding. The first injection molding part 20 limits the electrode plates 30, and after the limiting of the first injection molding part and the electrode plates is completed, the first side edge 24, the second side edge 25 and the top of the first injection molding part 20 and at least part of the side edges of the two electrode plates 30 are subjected to secondary injection molding to form the radio frequency pen. Therefore, the radio frequency pen is accurately positioned by the arrangement, and the position precision among all parts of the radio frequency pen is ensured.

As shown in fig. 4, each electrode plate 30 includes a third side 32, a second top surface 33 and a fourth side 34 connected in sequence, and the non-ablation portion includes the third side 32 and the fourth side 34. Like this, above-mentioned setting guarantees that the middle part of electrode plate 30 is located second injection molding 40, avoids the middle part of electrode plate 30 to take place structural damage and influence the life of radio frequency pen.

In other embodiments not shown in the figures, the non-ablated portion comprises only the third side. Like this, the aforesaid sets up the fourth side of guaranteeing the plate electrode and exposes outside, and then has increased the area that melts of radio frequency pen, and makes the radio frequency pen carry out the radio frequency ablation to a whole line, once only forms a complete line that melts.

In other embodiments not shown in the figures, the non-ablated portion comprises only the fourth side. Like this, above-mentioned setting guarantees that the third side of plate electrode exposes outside, and then has increased the area that melts of radio frequency pen, and makes the radio frequency pen carry out the radio frequency ablation to a whole line, once only forms a complete line that melts.

As shown in fig. 1, 2, 4 and 5, the first injection-molded part 20 has a first hole-shaped structure 26 thereon, each electrode plate 30 has a second hole-shaped structure 35 thereon, and the inner surface of the second mold has a protrusion which is inserted into the first hole-shaped structure 26 and the second hole-shaped structure 35 to limit the first injection-molded part 20 and the second mold. Like this, first spacing portion 21 is spacing to the tip that electrode plate 30 kept away from connecting piece 10, and the protruding portion is worn to establish in first poroid structure 26 and second poroid structure 35, and is spacing to the middle part of electrode plate 30, and then avoids the in-process electrode plate 30 of moulding plastics to take place to move and influence the relative position between each part in the radio frequency pen for first injection molding 20. Meanwhile, the arrangement enables the position of the first injection molding part 20 in the second mold to be more accurate, and subsequent injection molding is facilitated.

In the present embodiment, the width of the exposed ablation portion of the electrode plate 30 is uniform along the outer circumference of the rf pen. Each electrode plate 30 includes a third side 32, a second top 33 and a fourth side 34 connected in sequence. Wherein the ablation portion comprises a second top surface 33. Like this, above-mentioned setting makes the outward appearance of radio frequency pen more pleasing to the eye on the one hand, and on the other hand has promoted the radio frequency of radio frequency pen and has melted accuracy nature and degree of accuracy, has promoted the efficiency of melting of radio frequency pen.

Note that the structure of the ablation portion is not limited to this. In other embodiments not shown in the figures, the ablation portion includes a second top surface and a third side edge. Therefore, the ablation area of the radio frequency pen can be increased, the ablation efficiency is improved, the ablation of the user on the whole line is easier, simpler, more convenient and more complete, and the operation difficulty of the user is reduced.

Note that the structure of the ablation portion is not limited to this. In other embodiments not shown in the figures, the ablation portion includes a second top surface and a fourth side edge. Therefore, the ablation area of the radio frequency pen can be increased, the ablation efficiency is improved, the ablation of the user on the whole line is easier, simpler, more convenient and more complete, and the operation difficulty of the user is reduced.

Example two

The difference between the radio frequency pen processing method in the second embodiment and the first embodiment is that: the processing step in step S2 is different.

step S22: injection molding at least part of the side edges of the first injection molded part 20 and the two electrode plates 30 to form a second injection molded part 40;

step S23: the part of the top end of the second injection molding part 40, which is located between the two electrode plates 30, is the sub-injection molding part 41, and the sub-injection molding part 41 and the part of the surface of the two electrode plates 30, which is located outside the second injection molding part 40, are subjected to injection molding to form the radio frequency pen.

As shown in fig. 6 to 11, the first injection-molded part 20 is formed after the first injection-molding is completed. Then, the first side 24 and the second side 25 of the first injection-molded part 20 and at least a portion of the sides of the two electrode plates 30 are subjected to a second injection molding to form a second injection-molded part 40. Finally, the sub-injection molding part 41 and the part of the surface of the two electrode plates 30 outside the second injection molding part 40 are subjected to injection molding to form the radio frequency pen. Like this, the radio frequency pen is through cubic injection moulding to make the position of plate electrode 30 in the radio frequency pen more accurate, in order to ensure that the radio frequency pen can normal use, promoted the use reliability of radio frequency pen.

In the present embodiment, the first injection-molded part 20 is formed by one-shot injection molding. The first injection molding part 20 limits the electrode plate 30, and after the limiting of the electrode plate and the electrode plate is completed, the top ends of the electrode plate and the electrode plate are subjected to injection molding, so that a second injection molding part 40 is formed. Finally, the sub-injection molding part 41 is subjected to injection molding to form the radio frequency pen. Therefore, the radio frequency pen can be positioned for many times by the arrangement, and the position precision among all parts of the radio frequency pen is ensured.

As shown in fig. 9-11, the second injection molded part 40 includes a second injection molded part body portion 401. Wherein, the second injection molding main body part 401 covers the partial electrode plate 30. And injection molding is performed on part of the surfaces of the two electrode plates 30 outside the second injection molding part 40 to form a third top surface 402, and a preset distance is reserved between the third top surface 402 and the second top surface 33 of the electrode plate 30, so that the second top surface 33 is exposed outside.

In the present embodiment, each electrode plate 30 includes a third side 32, a second top 33 and a fourth side 34 connected in sequence, and in step S22, the first side 24, the second side 25 and the third side 32 and the fourth side 34 of the two electrode plates 30 are injection molded. Like this, above-mentioned setting guarantees that the middle part of electrode plate 30 is located second injection molding 40, avoids the middle part of electrode plate 30 to take place structural damage and influence the life of radio frequency pen.

In other embodiments not shown in the drawings, the first side, the second side, and the third sides of the two electrode plates are injection molded in step S22. Like this, the aforesaid sets up the fourth side of guaranteeing the plate electrode and exposes outside, and then has increased the area that melts of radio frequency pen, and makes the radio frequency pen carry out the radio frequency ablation to a whole line, once only forms a complete line that melts.

In other embodiments not shown in the drawings, the first side, the second side, and the fourth sides of the two electrode plates are injection molded in step S22. Like this, above-mentioned setting guarantees that the third side of plate electrode exposes outside, and then has increased the area that melts of radio frequency pen, and makes the radio frequency pen carry out the radio frequency ablation to a whole line, once only forms a complete line that melts.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

in the injection molding process, a part of connecting pieces stretch into a first mold for injection molding to form a first injection molding piece, and the first injection molding piece comprises a first limiting part. The first limiting portion positions the electrode plates, accuracy of the installation positions of the electrode plates is further guaranteed, and the two assembled electrode plates and the first injection molding piece are installed in the second mold to be subjected to injection molding, so that the radio frequency pen is formed. Because the radio frequency pen is molded in an integral injection molding mode, the problems that the radio frequency pen in the prior art is poor in structural stability and influences normal use of the radio frequency pen are solved, and the radio frequency pen is prevented from being influenced by falling or shifting of the electrode plate. Meanwhile, the injection molding process simplifies the production flow, improves the production efficiency and shortens the processing period.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A radio frequency pen processing method is characterized by comprising the following steps:

step S1: extending part of the connecting piece (10) into a first mould for injection molding to form a first injection molding piece (20), wherein the first injection molding piece (20) comprises a first limiting part (21);

step S2: the two electrode plates (30) are arranged on two sides of the first injection molding part (20) respectively, the first limiting part (21) positions the two electrode plates (30), and the two assembled electrode plates (30) and the first injection molding part (20) are placed into a second mold for injection molding to form the radio frequency pen.

2. The radio frequency pen processing method according to claim 1, wherein the first limiting portion (21) is a limiting protrusion, the electrode plate (30) has a limiting recess (31), and the limiting protrusion extends into the limiting recess (31) and is limited and stopped by the limiting recess (31).

3. The rf pen machining method according to claim 1, wherein the first injection molded part (20) further comprises:

the injection molding body (22), the first limiting part (21) is arranged on the injection molding body (22);

the second limiting part (23) is arranged at the end part, close to the connecting piece (10), of the injection molding body (22), and the second limiting part (23) and the plate surface of the electrode plate (30) are limited and stopped.

4. The radio frequency pen processing method according to claim 3, wherein the injection molding body (22) is a plate-shaped structure, the second limiting portion (23) has a first limiting surface (231) and a second limiting surface (232) perpendicular to the plate-shaped structure, the first limiting surface (231) and the second limiting surface (232) are parallel to each other, and the first limiting surface (231) and the second limiting surface (232) respectively contact with two end surfaces of the electrode plate (30) and limit a stop.

5. The rf pen processing method as claimed in claim 1, wherein the first injection molded part (20) comprises a first side edge (24), a first top surface and a second side edge (25) connected in sequence, and the step S2 comprises:

step S21: loading the two assembled electrode plates (30) and the first injection-molded part (20) into the second mold;

step S22: and injection molding the first injection molding piece (20) and the non-ablation parts of the two electrode plates (30) to form the radio frequency pen.

6. The radio frequency pen processing method according to claim 5, wherein each electrode plate (30) comprises a third side (32), a second top surface (33) and a fourth side (34) which are connected in sequence, and the non-ablation portion comprises the third side (32) and/or the fourth side (34).

7. The rf pen processing method as claimed in claim 1, wherein the first injection molded part (20) comprises a first side edge (24), a first top surface and a second side edge (25) connected in sequence, and the step S2 comprises:

step S22: injection molding the first injection molding part (20) and at least part of the side edges of the two electrode plates (30) to form a second injection molding part (40);

step S23: the top of the second injection molding piece (40) is located two the part between the electrode plates (30) is the sub-injection molding part (41), and the sub-injection molding part (41) and the two part of the plate surfaces of the electrode plates (30) outside the second injection molding piece (40) are subjected to injection molding to form the radio frequency pen.

8. The method for manufacturing an rf pen as claimed in claim 7, wherein each of the electrode plates (30) includes a third side (32), a second top (33) and a fourth side (34) connected in sequence, and in step S22, the first side (24), the second side (25) and the third side (32) and/or the fourth side (34) of two electrode plates (30) are injection-molded.

9. The rf pen processing method according to claim 5 or 7, wherein the first injection molded part (20) has a first hole structure (26), each electrode plate (30) has a second hole structure (35), and the inner surface of the second mold has a protrusion which is inserted into the first hole structure (26) and the second hole structure (35) to limit the first injection molded part (20) and the second mold.

10. The radio frequency pen processing method according to claim 1, wherein the width of the exposed ablation part of the electrode plate (30) is consistent along the outer circumference of the radio frequency pen; each electrode plate (30) comprises a third side edge (32), a second top surface (33) and a fourth side edge (34) which are connected in sequence; wherein the ablation portion comprises:

said second top surface (33); and/or

The third side edge (32); and/or

The fourth side (34).