CN218636069U

CN218636069U - Electrode needle assembly

Info

Publication number: CN218636069U
Application number: CN202221157882.9U
Authority: CN
Inventors: 马剑豪; 刘红梅; 汪龙
Original assignee: Hangzhou Vena Anke Medical Technology Co ltd
Current assignee: Hangzhou Vena Anke Medical Technology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2023-03-17
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses an electrode needle subassembly, include: the electrode needle comprises a shell, a fixing piece and an electrode needle, wherein the shell comprises an accommodating space and a first through hole communicated with the accommodating space; the fixing piece is arranged in the accommodating space, and the outer edge of the fixing piece is larger than the first through hole; the electrode needle includes relative first end and second end each other, first end with the mounting is connected, the second end can pass the through-hole and extend outside the casing, the mounting for accommodation space's position is adjustable, makes the second end extend outside the casing length is adjustable. The utility model discloses technical scheme makes the electrode needle can pass first through-hole and install the mounting in the casing through above-mentioned setting and is connected for being connected more firmly between electrode needle and the casing, be difficult to drop, and extend in the outside adjustable length of casing, the recovery after facilitating the use avoids causing damage and pollution to the electrode needle.

Description

Electrode needle assembly

Technical Field

The utility model relates to the technical field of medical equipment, in particular to electrode needle subassembly.

Background

The therapeutic mechanism of the irreversible electroporation technology is that a high-voltage power supply and a pulse generator generate high-voltage ultrashort nanosecond pulses, the ultrashort pulses with certain frequency are emitted, electric energy is released in a pulse electric field mode through an electrode, and then electric field energy is transmitted to tumor tissues through an electrode needle, so that tumor cells generate irreversible electroporation and die. The electrode needle is used as a key part for treating tumors by the irreversible electric through hole technology, and plays a crucial role in the effect of the irreversible electric through hole.

At present, most of the adopted installation modes are that the electrode needle is directly inserted into the holding shell in an inserting connection mode, and a part of the electrode needle is stuck and fixed with the holding shell by using glue, so that the electrode needle is simple and convenient to install, but is easy to loosen, and the electrode needle of the needle falls off.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electrode needle subassembly aims at solving between electrode needle body and the casing insecure connection, leads to the problem that the electrode needle easily drops.

In order to achieve the above object, the utility model provides an electrode needle assembly, include: the shell comprises an accommodating space and a first through hole communicated with the accommodating space; the fixing piece is arranged in the accommodating space, and the outer edge of the fixing piece is larger than the first through hole; the electrode needle comprises a first end and a second end which are opposite to each other, the first end is connected with the fixing piece, and the second end can penetrate through the through hole and extend to the outside of the shell; the position of the fixing piece relative to the accommodating space is adjustable, so that the length of the second end extending outside the shell is adjustable.

The utility model discloses an among some technical scheme, the inside mounting groove that is provided with of casing, the radial dimension of mounting groove with the radial dimension looks adaptation of mounting is used for accomodating the mounting.

The utility model discloses an among some technical scheme, the mounting one of mounting groove is provided with an at least spacing groove, and another person is provided with spacing arch, spacing arch with the spacing groove cooperation, in order to restrict the mounting is relative the mounting groove is along axial direction's motion.

In some technical solutions of the present invention, the heat dissipation device further includes a heat dissipation member, the heat dissipation member is disposed inside the casing and close to one end of the first through hole, and the heat dissipation member is connected to the electrode needle.

In some embodiments of the present invention, the housing includes a first body and a second body connected in sequence along the length direction axis.

In some embodiments of the present invention, the mounting groove is disposed in the first body, the first through hole is disposed in the second body, and the fixing member is disposed in the first body through the mounting groove.

In some embodiments of the present invention, the housing includes a first housing, a second housing, and a housing cap; the first shell and the second shell are detachably connected, and in an assembly state, the shell cap is connected to one end, far away from the first through hole, of the first shell and the second shell so as to fix the first shell and the second shell.

In some embodiments of the present invention, the first through hole is disposed in the first housing; the mounting groove comprises a first groove and a second groove, the first groove is arranged in the first shell, the second groove is arranged in the second shell, and when the first shell is connected with the second shell, the first groove is spliced with the second groove to form the mounting groove.

In some embodiments of the present invention, the fixing member includes a first fixing seat and a second fixing seat; the first fixing seat is fixedly connected with the second fixing seat, the first fixing seat is used for being connected with and fixing the electrode needle, and the second fixing seat is used for being installed in the installation groove.

In some technical solutions of the present invention, the housing deviates from one end of the first through hole and is provided with a second through hole, the second through hole allows the electrical connection line to run through so that the electrical connection piece is connected to the electrode pin or the fixing piece.

In some embodiments of the present invention, the electrical connector is connected to the fixing member in a connecting state, and the fixing member is a conductive member.

According to the utility model discloses electrode needle subassembly is through setting up mounting and first through-hole in the casing for the electrode needle can pass first through-hole and install the mounting in the casing and be connected, through mounting fixed connection electrode needle, makes being connected more firmly between electrode needle and the casing, is difficult to drop, and extends in the outside adjustable length of casing, and the recovery after facilitating the use avoids causing damage and pollution to the electrode needle.

In some alternative embodiments, a mounting groove is provided inside the housing, and the radial dimension of the mounting groove is adapted to the radial dimension of the fixing member for receiving the fixing member. Through set up the mounting groove in the casing for mounting of mounting detachable is in the mounting groove, the installation of this electrode needle subassembly of being convenient for, and after this electrode needle subassembly used up, convenient to detach and recovery processing.

In some optional embodiments, one of the fixing member and the mounting groove is provided with at least one limiting groove, and the other one of the fixing member and the mounting groove is provided with a limiting protrusion, and the limiting protrusion is matched with the limiting groove to limit the movement of the fixing member relative to the mounting groove along the axial direction. According to the embodiment, the length of the electrode needle leaking out of the shell can be adjusted through the matching of the limiting bulges and the limiting grooves on the fixing piece and the mounting groove, so that the electrode needle assembly can be stored conveniently, and the electrode needle assembly can be suitable for different use environments.

In some optional embodiments, the electrode needle assembly further includes a heat dissipation member disposed at an end of the housing close to the first through hole, and the heat dissipation member is connected to the electrode needle. According to the embodiment, the heat dissipation piece is arranged in the shell, and the electrode needle is connected with the heat dissipation piece to dissipate heat of the electrode needle, so that the temperature of the electrode needle is prevented from being too high, and the treatment effect is prevented from being influenced.

In some alternative embodiments, the housing comprises a first body and a second body connected in series along a lengthwise axis; the mounting groove set up in the first body, first through-hole set up in the second body, the mounting passes through the mounting groove install in the first body. The shell is arranged into the first body and the second body, so that the electrode needle, the fixing piece and the shell can be conveniently mounted and dismounted, and the electrode needle assembly can be conveniently placed, transported, recycled and classified.

In some alternative embodiments, the housing comprises a first housing, a second housing, and a housing cap; the first shell and the second shell are detachably connected, and in an assembly state, the shell cap is connected to one end, far away from the first through hole, of the first shell and the second shell so as to fix the first shell and the second shell. Through first casing of shell cap direct fixed connection and second casing, need not to be with the help of other instruments, even if swift practical, still can practice thrift manufacturing and use cost. According to the embodiment of the application, different shell setting modes enable the electrode needle assembly to be applicable to different use scenes, under the condition that the electrode needle assembly is convenient to install, the firmness of connection between the electrode needle and the shell can be further ensured, and the portability of recovery after use is also ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded view of an electrode needle assembly according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an electrode needle assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a fixing member according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an exploded structure of a housing according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an explosive structure of a housing according to another embodiment of the present invention.

The reference numbers illustrate:

100-an electrode needle assembly; 110-electrode needle; 120-a housing; 120 a-a receiving space; 121-mounting grooves; 1211 — a first groove; 1212 — a second groove; 122-a first via; 123-a second via; 124-a first body; 125-a second body; 126-a first housing; 127-a second housing; 128-shell cap; 130-a fixture; 140-electrical connection lines; 150-a limiting groove; 160-limit protrusions; 170-a heat sink; 131-a first fixed seat; 132-second fixed seat.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The utility model provides an electrode needle subassembly, include: the electrode needle comprises a shell, a fixing piece and an electrode needle, wherein the shell comprises an accommodating space and a first through hole communicated with the accommodating space; the fixing piece is arranged in the accommodating space, and the outer edge of the fixing piece is larger than the first through hole; the electrode needle comprises a first end and a second end which are opposite to each other, the first end is connected with the fixing piece, and the second end can penetrate through the through hole and extend to the outside of the shell; the position of the fixing piece relative to the accommodating space is adjustable, so that the length of the second end extending outside the shell is adjustable. The electrode needle assembly of this application makes being connected between electrode needle and the casing more firm, is difficult to drop, and extends in the outside adjustable length of casing, and the recovery after facilitating the use avoids causing damage and pollution to electrode needle.

Among the prior art, through adhesive connection between electrode needle and the casing, lead to electrode needle surface gluing glue to the electrode needle subassembly of using this mode installation is fixed after the equipment is accomplished, and its electrode needle leaks the length of casing promptly, makes it preserve comparatively troublesome relatively, and makes its applicable scope less. The electrode needle among the electrode needle subassembly of this application extends in the outside adjustable length of casing, and the recovery after facilitating the use avoids causing damage and pollution to the electrode needle.

As shown in fig. 1 to 5, in the embodiment of the present invention, the electrode needle assembly 100 includes: the electrode needle comprises a shell 120, a fixing piece 130 and an electrode needle 110, wherein the shell 120 comprises an accommodating space 120a and a first through hole communicated with the accommodating space 120 a; the fixing element 130 is disposed in the accommodating space 120a, and an outer edge of the fixing element 130 is larger than the first through hole 122, so that the fixing element 130 is limited inside the housing 120, preferably, the housing 120 is a separable structure, and the fixing element 130 is detachably mounted in the housing 120. The electrode needle 110 comprises a first end and a second end which are opposite to each other, the first end of the electrode needle 110 is connected with the fixing member 130, and the second end of the electrode needle 110 can penetrate through the through hole and extend to the outside of the shell 120; the position of the fixing member 130 with respect to the receiving space 120a is adjustable such that the length of the second end extending outside the housing 120 is adjustable.

The electrode needle assembly 100 of the application is fixedly connected with the electrode needle 110 through the fixing piece 130, so that the connection between the electrode needle 110 and the shell 120 is firmer, the electrode needle is not easy to fall off, the length of the electrode needle extending to the outside of the shell 120 is adjustable, the electrode needle is convenient to use to recycle, and the electrode needle 110 is prevented from being damaged and polluted.

Referring to fig. 2, in some preferred embodiments, a mounting groove 121 is formed in the housing 120, and a radial dimension of the mounting groove 121 is adapted to a radial dimension of the fixing member 130 for receiving the fixing member 130. This arrangement allows the fixing member 130 to be installed in the housing 120 through the installation groove 121. One end of the housing 120 is further provided with a first through hole 122, and the first through hole 122 partially penetrates the housing 120 along the axis of the housing 120, so that the electrode needle 110 can be connected with a fixing member 130 installed in the housing 120 through the first through hole 122. By providing the mounting groove 121 in the housing 120, the fixing member 130 is detachably mounted in the mounting groove 121, so that the electrode needle assembly 100 of the present embodiment can be conveniently mounted, and the electrode needle assembly 100 of the present embodiment can be conveniently detached and recycled after being used.

With continuing reference to fig. 3 in conjunction with fig. 2, in another preferred embodiment, one of the fixing member 130 and the mounting groove 121 is provided with at least one limiting groove 150, and the other one of the fixing member 130 and the mounting groove 121 is provided with at least one limiting protrusion 160, so as to limit the movement of the fixing member 130 relative to the mounting groove 121 in the axial direction through the cooperation of the limiting groove 150 and the limiting protrusion 160, and since the number of the limiting grooves 150 is at least one, the position of the fixing member 130 relative to the mounting groove 121 can be changed through the cooperation of the limiting grooves 150 and the limiting protrusions 160 at different positions, so as to change the length of the electrode needle 110 leaking out of the casing 120, so as to be suitable for various use environments, and when not in use, the electrode needle 110 can be partially retracted into the casing 120, so as to facilitate the storage of the electrode needle assembly 100.

In this embodiment, the position-limiting groove 150 is disposed on the fixing member 130, and the position-limiting protrusion 160 is disposed in the mounting groove 121.

Preferably, the heat dissipation device 170 is further included, the heat dissipation device 170 is disposed at one end of the housing 120 close to the first through hole 122, and the heat dissipation device 170 is connected to the electrode needle 110 to dissipate heat of the electrode needle 110. It is understood that the material of the heat sink 170 includes, but is not limited to, aluminum, copper, heat sink gel, etc. According to the embodiment of the application, the heat dissipation member 170 is arranged in the housing 120, and the electrode needle 110 is connected with the heat dissipation member 170 to dissipate heat of the electrode needle 110, so that the temperature of the electrode needle is prevented from being too high, and the treatment effect is prevented from being affected.

Referring to fig. 4, in the first embodiment of the present application, the housing 120 includes a first body 124 and a second body 125 sequentially connected along a length direction axis; the mounting groove 121 is disposed at an end of the first body 124, which is close to the end of the second body 125, the fixing member 130 is mounted in the first body 124 through the mounting groove 121, the first through hole 122 is disposed in the second body 125 along an axis of the second body 125, the electrode pin 110 is connected to the fixing member 130 disposed in the first body 124 through the first through hole 122, the second through hole 123 is disposed at an end of the first body 124, which is far away from the mounting groove 121, and the electrical connection wire 140 is electrically connected to the fixing member 130 or the electrode pin 110 through the second through hole 123.

Preferably, the connection between the first body 124 and the second body 125 includes, but is not limited to, a snap connection, a threaded connection, an interference fit connection, or an adhesive connection. The housing 120 is provided as two parts of the first body 124 and the second body 125, so that the electrode needle 110, the fixing member 130 and the housing 120 can be conveniently mounted and dismounted, and the electrode needle assembly 100 can be conveniently placed, transported and recycled.

With further reference to fig. 5, in a second implementation of the embodiment of the present application, the housing 120 includes a first housing 126, a second housing 127, and a housing cap 128; the first shell 126 is detachably connected to the second shell 127, and in an assembled state of the first shell 126 and the second shell 127, the shell cap 128 is connected to an end of the first shell 126 and the second shell 127 far away from the first through hole 122 to fix the first shell 126 and the second shell 127. It is understood that the connection of the cap 128 to the first and

second housings

126, 127 includes, but is not limited to, a snap connection, a threaded connection, an interference fit connection, an adhesive connection, etc. The first shell 126 and the second shell 127 are directly fixedly connected through the shell cap 128, other tools are not needed, and manufacturing and using costs can be saved even though the device is convenient and practical.

Further, a first through hole 122 is disposed at one end of the first housing 126 along an axis of the first housing 126, so that the electrode needle 110 passes through the first through hole 122 and is connected to the fixing member 130; the mounting groove 121 includes a first groove 1211 and a second groove 1212, wherein the first groove 1211 is disposed in the first housing 126, the second groove 1212 is disposed in the second housing 127, and when the first housing 126 is connected to the second housing 127, the first groove 1211 and the second groove 1212 are spliced to form the mounting groove 121 for receiving the fixing element 130; further, a second through hole 123 is provided on the case cap 128 so that the electrical connection wire 140 is electrically connected with the fixing member 130 or the electrode needle 110 mounted in the housing 120 through the second through hole 123 on the case cap 128. The embodiment of this application sets up the mode through different casing 120 for this electrode needle subassembly 100 is applicable in the use scene of multiple difference, under the condition of being convenient for this electrode needle subassembly 100 installation, still can guarantee the fastness of being connected between electrode needle 110 and the casing 120, and the portability of retrieving after using up.

Referring to fig. 1 again, as an optimized embodiment, the electrode needle assembly 100 further includes an electrical connection wire 140 electrically connected to an external power source for supplying power to the electrode needle assembly 100, wherein the electrical connection wire 140 is electrically connected to the electrode needle 110, or the electrical connection wire 140 is electrically connected to the fixing member 130, and further, the electrical connection wire 140 is electrically connected to the electrode needle 110 through the fixing member 130.

It can be understood that, when the electrical connection wire 140 and the fixing element 130 are electrically connected, the fixing element 130 is a conductive element, and the material of the fixing element 130 includes, but is not limited to, silver, copper, aluminum, iron, copper alloy, aluminum alloy, and other conductive materials, so as to achieve the electrical connection between the electrical connection wire 140 and the electrode pin 110. Further, one end of the housing 120 facing away from the first through hole 122 is provided with a second through hole 123, the second through hole 123 allows the electrical connection wire 140 to pass through, and the electrical connection wire 140 is electrically connected with the electrode needle 110 or the fixing member 130 in the housing 120 through the second through hole 123.

Referring to fig. 2-3, in some alternative embodiments, the fixing member 130 includes a first fixing seat 131 and a second fixing seat 132; the first fixing seat 131 is fixedly connected to the second fixing seat 132, wherein the first fixing seat 131 is used for being connected to the electrode needle 110 to fix the electrode needle 110, so as to achieve the fixed connection between the electrode needle 110 and the fixing member 130, the second fixing seat 132 is used for being installed in the installation groove 121 to achieve the fixed connection between the fixing member 130 and the housing 120, and in this embodiment, the first fixing seat 131 and the second fixing seat 132 are integrally formed. Preferably, the connection between the electrode needle 110 and the first fixing seat 131 includes, but is not limited to, a threaded connection, an interference fit connection, and the like. Furthermore, the fixing element 130 is a conductive element when the electrical connector is connected to the fixing element 130. Furthermore, the fixing member 130 is made of conductive metal such as copper, aluminum, iron, etc., so that an external power source can be directly connected to the fixing member 130 to achieve electrical conduction of the electrode needle 110, and the electrode needle assembly 100 is not required to be directly connected to the electrode needle 110.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electrode needle assembly, comprising:

the shell comprises an accommodating space and a first through hole communicated with the accommodating space;

the fixing piece is arranged in the accommodating space, and the outer edge of the fixing piece is larger than the first through hole;

the electrode needle comprises a first end and a second end which are opposite to each other, the first end is connected with the fixing piece, and the second end can penetrate through the through hole and extend to the outside of the shell;

the position of the fixing piece relative to the accommodating space is adjustable, so that the length of the second end extending outside the shell is adjustable.

2. The electrode needle assembly according to claim 1, wherein the housing is provided with an installation groove therein, the installation groove having a radial dimension adapted to a radial dimension of the holder for receiving the holder.

3. The electrode needle assembly according to claim 2, wherein one of the fixing member and the mounting groove is provided with at least one limiting groove, and the other one is provided with a limiting protrusion, and the limiting protrusion is engaged with the limiting groove to limit the movement of the fixing member relative to the mounting groove in the axial direction.

4. The electrode needle assembly of claim 1, further comprising a heat sink disposed within the housing at an end proximate to the first through-hole, the heat sink being coupled to the electrode needle.

5. The electrode needle assembly of claim 2, wherein the housing includes a first body and a second body connected in series along a lengthwise axis.

6. The electrode needle assembly of claim 5, wherein the mounting groove is provided in the first body, the first through hole is provided in the second body, and the fixing member is mounted to the first body through the mounting groove.

7. The electrode needle assembly of claim 2, wherein the housing comprises a first housing, a second housing, and a housing cap;

the first shell and the second shell are detachably connected, and in an assembly state, the shell cap is connected to one end, far away from the first through hole, of the first shell and the second shell so as to fix the first shell and the second shell.

8. The electrode needle assembly of claim 7, wherein the first through hole is provided to the first housing; the mounting groove comprises a first groove and a second groove, the first groove is arranged in the first shell, the second groove is arranged in the second shell, and when the first shell is connected with the second shell, the first groove is spliced with the second groove to form the mounting groove.

9. The electrode needle assembly of claim 2, wherein the holder includes a first holder and a second holder;

the first fixing seat is fixedly connected with the second fixing seat, the first fixing seat is used for being connected with and fixing the electrode needle, and the second fixing seat is used for being installed in the installation groove.

10. The electrode needle assembly according to any one of claims 1 to 9, wherein an end of the housing facing away from the first through hole is provided with a second through hole allowing an electrical connection wire to pass therethrough such that the electrical connection wire connects the electrode needle or the fixture.

11. The electrode needle assembly of claim 10, wherein the fixing member is a conductive member in a state where the electrical connection line is connected to the fixing member.