Ablation electrode device with improved internal structure of handle

Abstract

The invention discloses an ablation electrode device with an improved internal structure of a handle. The ablation electrode device comprises an outer sleeve, an emitting pole needle and a loop pole needle which are arranged in the outer sleeve, the handle which is connected with the outer sleeve and is of a hollow structure, a first wire which is electrically connected with the emitting pole needle, and a second wire which is electrically connected with the loop pole needle, a storage box is arranged in the handle, and a first storage groove and a second storage groove which are separated from each other are formed in the storage box through a baffle made of an insulating material; the emitting electrode needle and the first wire are fixedly connected in the first accommodating groove to form a first joint; and the loop pole needle and the second wire are fixedly connected in the second accommodating groove to form a second joint. According to the technical scheme, short circuit between the emitting electrode and the loop electrode can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and more particularly to an ablation electrode device with an improved internal structure of a handle. Background Art

[0002] Plasma ablation surgery uses specific ultra-low frequency electrical energy to stimulate saline to generate plasma. The high-speed charged particles generated can break molecular bonds, causing protein and other tissues to break down and vaporize into low molecular weight gases such as H2, O2, CO2, N2 and methane, thereby completing tissue ablation in a "minimally invasive" manner.

[0003] The plasma ablation electrode device used for plasma ablation surgery generally includes an electrode assembly (including an emitter and a return electrode), a handle connected to the electrode assembly, and a wire electrically connected to the emitter and the return electrode. Summary of the invention

[0004] The present invention provides an ablation electrode device with an improved internal structure of a handle, which comprises an outer sleeve, an emitter needle and a return needle arranged in the outer sleeve, a handle with a hollow structure connected to the outer sleeve, a first wire electrically connected to the emitter needle, and a second wire electrically connected to the return needle; A storage box is disposed in the handle, and a first storage slot and a second storage slot are formed in the storage box through a baffle made of insulating material; The emitter needle and the first wire are fixedly connected in the first receiving groove to form a first joint; The loop pole needle and the second wire are fixedly connected in the second receiving groove to form a second joint.

[0005] The beneficial effects of the present invention are: effectively avoiding short circuit between the emitter and the loop electrode; and enhancing the reliability of the connection between the electrode and the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 A schematic diagram of the overall structure of an ablation electrode device with an improved internal structure of a handle provided by an embodiment of the present invention (a cross-sectional view of the handle); Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the middle storage box; Figure 3 A schematic diagram of the overall structure of another ablation electrode device with an improved internal structure of a handle provided by an embodiment of the present invention (a cross-sectional view of the handle); Figure 4 A schematic diagram of the overall structure of another ablation electrode device with an improved internal structure of a handle provided by an embodiment of the present invention (a cross-sectional view of the handle); Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure of the middle storage box; Figure 6 A schematic diagram of the overall structure of a storage box in another ablation electrode device with an improved internal structure of a handle provided by an embodiment of the present invention; Figure 7 for Figure 6 Schematic diagram of the split structure of the middle storage box; Figure 8 A schematic diagram of the overall structure of a storage box in another ablation electrode device with an improved internal structure of a handle provided by an embodiment of the present invention.

[0007] Figure numerals: 1, outer sleeve; 11, outer sleeve assembly; 2, emitter needle; 21, first insulating tube; 22, emitter; 3, loop electrode needle; 31, second insulating tube; 32, loop electrode; 4, handle; 5, first wire; 6, second wire; 7, storage box; 71, baffle; 72, first storage slot; 73, second storage slot; 74, accommodating chamber; 75, cover; 751, opening; 76, first end face; 761, first through hole; 77, second end face; 771, second through hole; 78, upper side; 79, lower side; 791, protrusion; 25, first joint; 251, first connecting sleeve; 36, second joint; 361, second connecting sleeve; 8, double-lumen tube; 9, sheath; 10, curing glue. DETAILED DESCRIPTION

[0008] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0009] In the description of the present application, it should be noted that the terms "inside", "outside", "far away", "close" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0010] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0011] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0012] The present application is further described in detail below in conjunction with the accompanying drawings.

[0013] According to an embodiment of the present application, an ablation electrode device with an improved internal structure of a handle is provided, such as Figure 1 and Figure 2As shown, it includes: an outer sleeve 1, an emitter needle 2 and a loop pole needle 3 are arranged inside the outer sleeve 1, the emitter needle 2 and the loop pole needle 3 extend in the outer sleeve 1 along the axial direction of the outer sleeve 1, and also includes a handle 4 with a hollow structure connected to the outer sleeve 1. In this embodiment, the two are detachably connected. In other embodiments, the two can also be fixedly connected; a first wire 5 is electrically connected to the emitter needle 2 for providing an ablation signal to the emitter 22; a second wire 6 is electrically connected to the loop pole needle 3 for providing a loop signal to the loop pole 32. When performing an ablation operation, the first wire 5 and the second wire 6 are both electrically connected to an ablation host (not shown in the figure); a storage box 7 is also arranged in the hollow structure of the handle 4. In this embodiment, the storage box 7 is detachably connected to the handle 4. In other embodiments, the storage box 7 can also be directly fixed in the handle 4. This application does not make specific limitations. A baffle 71 is disposed in the storage box 7 , and a first storage groove 72 and a second storage groove 73 are formed separately in the storage box 7 through the baffle 71 . Preferably, the baffle 71 and the storage box 7 are integrally formed. In order to transmit the ablation signal to the emitter 22 through the emitter needle 2, it is necessary to electrically connect the emitter needle 2 with the first wire 5, so one end of the emitter needle 2 is fixedly connected to one end of the first wire 5 to form a first connector 25, and the first connector 25 is arranged in the first receiving groove 72; in addition, in order to transmit the loop signal to the loop pole 32 through the loop pole needle 3, it is necessary to electrically connect the loop pole needle 3 with the second wire 6, so one end of the loop pole needle 3 is fixedly connected to one end of the second wire 6 to form a second connector 36, and the second connector 36 is arranged in the second receiving groove 73. Because the first receiving groove 72 and the second receiving groove 73 are separated by the baffle 71, and the first baffle 71 is made of insulating material, the first connector 25 and the second connector 36 are effectively separated in the storage box 7 to avoid a short circuit between the two, thereby avoiding a short circuit between the emitter 22 and the loop pole 32. It should be noted that, in the present embodiment, the first joint 25 and the second joint 36 are connected together by welding. In other embodiments, other connection methods may also be used.

[0014] In this embodiment, the emitter 22 is arranged at the end of the emitter needle 2 away from the handle 4 and is electrically connected to the emitter needle 2 , and the return electrode 32 is arranged at the end of the return electrode needle 3 away from the handle 4 and is electrically connected to the return electrode needle 3 .

[0015] In some optional embodiments, such as Figure 3As shown, at the first joint 25, one end of the emitter pin 2 is fixedly connected to one end of the first wire 5 through a metal first connecting sleeve 251; at the second joint 36, one end of the return pole pin 3 is fixedly connected to one end of the second wire 6 through a metal second connecting sleeve 361. In order to achieve a better connection effect, the emitter pin 2 at the first joint 25 is welded to the first wire 5, and the return pole pin 3 at the second joint 36 is welded to the second wire 6. By setting the metal first connecting sleeve 251 and the second connecting sleeve 361, the connection between the emitter pin 2 and the first wire 5 and the connection between the return pole pin 3 and the second wire 6 are more secure, and the electrical connection is better. The first connecting sleeve 251 is arranged in the first receiving groove 72, and the second connecting sleeve 361 is arranged in the second receiving groove 73, and there is a baffle 71 between the two. By setting the baffle 71, the first joint 25 and the second joint 36 are simply and effectively isolated and insulated.

[0016] In some optional embodiments, continue as Figure 1 and Figure 2 As shown, a first insulating tube 21 is provided on the outer surface of part of the emitter needle 2, and a second insulating tube 31 is provided on the outer surface of part of the return pole needle 3, that is, except for the two ends of the emitter needle 2 which need to be exposed, the rest of the part is covered with the first insulating tube 21, and similarly, except for the two ends of the return pole needle 3 which need to be exposed, the rest of the part is covered with the second insulating tube 31. In addition, a double-lumen tube 8 is also provided outside the first insulating tube 21 and the second insulating tube 31, and the double-lumen tube 8 has two cavities, and part of the emitter needle 2 together with the first insulating tube 21 outside thereof is arranged in one cavity of the double-lumen tube 8, and part of the return pole needle 3 together with the second insulating tube 31 outside thereof is arranged in the other cavity of the double-lumen tube 8. The double-lumen tube 8 together with the emitter needle 2 and the return pole needle 3 wrapped therein extend in the outer sleeve 1, and extend from the end of the outer sleeve 1 away from the handle 4. One end of the double-lumen tube 8 is arranged in the storage box 7. An outer sleeve assembly 11 is disposed outside the end of the outer sleeve 1 located in the handle 4 and the part of the double-lumen tube 8 adjacent thereto, and one end of the outer sleeve assembly 11 abuts against the inner wall of one end of the handle 4. The arrangement of the outer sleeve assembly 11 can prevent liquid, impurities, etc. from entering the handle 4, further preventing the occurrence of short circuit.

[0017] In some optional embodiments, the first wire 5 except the portion near the first connector 25 and the second wire 6 except the portion near the second connector 36 are wrapped together with a sheath 9, one end of the sheath 9 is fixed in the storage box 7, and the rest of the sheath 9 extends from the first end surface 76 of the storage box 7 away from the outer sleeve 1.

[0018] In some optional embodiments, the extending direction of the baffle 71 is parallel to the axial direction of the outer sleeve 1, and the baffle 71 is integrally formed with the storage box 7. The baffle 71 and the storage box 7 are made of insulating plastic, and the manufacturing process is simple and the cost is low. A protrusion 791 extending along the length direction of the storage box 7 is provided on the lower side surface 79 of the bottom surface of the storage box 7, and a groove extending along the length direction of the handle 4 is provided on the inner side surface of the handle 4 (not shown in the figure), and the protrusion 791 is embedded in the groove, firstly, it is convenient to quickly locate the storage box 7 to the correct position in the handle 4 during assembly, and secondly, the storage box 7 can be conveniently fixed in the handle 4.

[0019] In a possible implementation, Figure 4 and Figure 5 As shown, this embodiment is Figure 1 , Figure 2 The main difference of the embodiment shown is that the storage box 7 in the ablation electrode device is filled with an insulating curing glue 10, and the first connector 25 and the second connector 36 are encapsulated and fixed in the storage box 7 by the curing glue 10, so that the connection between the emitter needle 2 and the first wire 5 and the connection between the return pole needle 3 and the second wire 6 are more secure. Because they have been cured by the curing glue 10, it is possible to prevent the emitter needle 2 from being disconnected from the first wire 5 or the return pole needle 3 from being disconnected from the second wire 6 due to external force. At the same time, the insulation isolation of the first connector 25 and the second connector 36 is better. The first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 in the storage box 7 are also encapsulated and fixed in the storage box 7 by the curing glue 10. These components are more firmly fixed in the storage box 7, and the curing glue 10 can further prevent liquids, impurities, etc. from entering the first connector 25 or the second connector 36 to cause a short circuit. It should be noted that the curing glue 10 can be UV glue, sealant or other easily curable glue. Some curing glue 10 is transparent or translucent. Figure 4 , Figure 5In the figure, the curing glue 10 is drawn in shaded form in order to more clearly show the content of this part of the invention, and is not used to limit the present invention. In other embodiments, the curing glue 10 can also be replaced with other insulating filling materials, so that the first connector 25, the second connector 36 and other components located in the storage box 7 can be sealed and fixed in the storage box 7. It should be noted that when the ablation electrode device is assembled, the first connector 25, the second connector 36 and part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 are first placed in the storage box 7 that has not been filled with the curing glue 10. The first connector 25 is arranged in the first receiving groove 72, and the second connector 36 is arranged in the second receiving groove 73. The baffle 71 is used to insulate and isolate the two. Subsequently, the curing glue 10 is poured into the groove of the storage box 7, and the curing glue 10 covers the first joint 25, the second joint 36 and a part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9. After the curing glue 10 is cured, the storage box 7 forms an approximately closed structure, and the first joint 25, the second joint 36 and a part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 are sealed and fixed in the storage box 7.

[0020] In some optional embodiments, only the first connector 25 and the second connector 36 located in the storage box 7 may be encapsulated and fixed with the curing glue 10, and the curing glue 10 may not be provided on part of the first insulating tube 21, part of the second insulating tube 31, the double-lumen tube 8, part of the first wire 5, part of the second wire 6 and the sheath 9 located in the storage box 7. The present application does not make specific limitations, and mainly ensures that the first connector 25 and the second connector 36 are encapsulated and fixed in the storage box 7 by the curing glue 10.

[0021] In some optional embodiments, only the first connector 25 and the second connector 36 may be arranged in the storage box 7, or the first connector 25, the second connector 36 and one or more components of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 may be arranged in the storage box 7. The present application does not make specific limitations, and mainly ensures that the first connector 25 and the second connector 36 are arranged in the storage box 7.

[0022] In another possible implementation, if Figure 6 and Figure 7 As shown, this embodiment is Figure 1 , Figure 2 The main difference between the ablation electrode device with an improved internal structure of the handle in the illustrated embodiment is that the structure of the storage box 7 in the ablation electrode device is different. Figure 6 and Figure 7They are respectively the overall structural schematic diagram and the split structural schematic diagram of the storage box 7 in this embodiment. The storage box 7 in this embodiment includes a accommodating chamber 74 and a cover 75 that are snapped together, and the baffle 71 is arranged on the upper side 78 of the bottom surface of the accommodating chamber 74, and the upper side 78 faces the cover 75. In other words, the first receiving groove 72 and the second receiving groove 73 are formed in the accommodating chamber 74, and the first joint 25 and the second joint 36 are respectively arranged in the first receiving groove 72 and the second receiving groove 73 in the accommodating chamber 74. Preferably, a protrusion 791 extending along the length direction of the storage box 7 is arranged on the lower side 79 of the bottom surface of the accommodating chamber 74, and the lower side 79 faces away from the cover 75. At the same time, a groove extending along the length direction of the handle 4 is arranged on the inner side of the handle 4 (not shown in the figure), and the protrusion 791 can be embedded in the groove. Therefore, by using this protrusion 791 to be embedded in the groove, the storage box 7 can be firmly fixed in the handle 4. First, it is convenient to quickly locate the storage box 7 to the correct position in the handle 4 during assembly, and second, the storage box 7 can be conveniently fixed in the handle 4.

[0023] In this embodiment, the first wire 5 except for the part near the first connector 25 and the second wire 6 except for the part near the second connector 36 are wrapped with a sheath 9, one end of the sheath 9 is fixed in the storage box 7, and the rest of the sheath 9 extends from the first end face 76 of the storage box 7 away from the outer sleeve 1. That is to say, after the accommodating cavity 74 and the cover 75 are snapped together, there is a first through hole 761 on the first end face 76 of the storage box 7, and the sheath 9 extends out of the storage box 7 from the first through hole 761. In addition, part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, and the second wire 6 are also arranged in the storage box 7. It should be noted that when the ablation electrode device is assembled, the first connector 25, the second connector 36, part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 are first placed in the accommodating cavity 74, the first connector 25 is arranged in the first receiving groove 72, and the second connector 36 is arranged in the second receiving groove 73, and the two are insulated and isolated by the baffle 71. Subsequently, the cover 75 is snapped onto the accommodating cavity 74, so that the first connector 25, the second connector 36, part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 are fixed in the storage box 7, and the double-lumen tube 8 extends from the second through hole 771 on the second end surface 77 of the storage box 7 to the outside of the storage box 7.

[0024] In some optional embodiments, only the first connector 25 and the second connector 36 may be arranged in the storage box 7, or the first connector 25, the second connector 36 and one or more components of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 may be arranged in the storage box 7. The present application does not make specific limitations, and mainly ensures that the first connector 25 and the second connector 36 are arranged in the storage box 7.

[0025] Due to the setting of the storage box 7, the first connector 25 and the second connector 36 are simply and effectively isolated and insulated. At the same time, the storage box 7 is connected by a snap-on type. After the first connector 25, the second connector 36 and part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 are placed in the accommodating cavity 74, the cover 75 can be snapped onto the accommodating cavity 74 very conveniently. Storing these components in the storage box 7 can, firstly, avoid a short circuit between the first connector 25 and the second connector 36, secondly, avoid the first connector 25 and the second connector 36 being easily pulled and disconnected, and thirdly, the assembly at the handle 4 of the ablation electrode device is more convenient and quick. The first connector 25 and the second connector 36 can be placed on both sides of the baffle 71 in the storage box 7 to achieve insulation, without the need for more complicated insulation treatment with the help of other components and processes.

[0026] In another possible implementation, if Figure 8 As shown, this embodiment is Figure 6 The main differences of the embodiments shown are The storage box 7 is filled with insulating curing glue 10, and the first connector 25 and the second connector 36 are encapsulated and fixed in the storage box 7 by the curing glue 10, so that the connection between the emitter needle 2 and the first wire 5 and the connection between the loop pole needle 3 and the second wire 6 are more secure. Because they have been solidified by the curing glue 10, it can better prevent the emitter needle 2 and the first wire 5 or the loop pole needle 3 and the second wire 6 from being disconnected due to external pulling. The first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, and the second wire 6 in the storage box 7 are also encapsulated and fixed in the storage box 7 by the curing glue 10. These components are more firmly fixed in the storage box 7, and the curing glue 10 can further prevent liquids, impurities, etc. from entering the first connector 25 or the second connector 36 and causing a short circuit. It should be noted that the curing glue 10 can be UV glue, sealant or other easy-to-curing glue. Some curing glues 10 are transparent or translucent. Figure 8In the figure, the curing glue 10 is drawn in shaded form in order to more clearly show the content of this part of the invention, and is not used to limit the present invention. In other embodiments, the curing glue 10 can also be replaced with other insulating filling materials, so that the first connector 25, the second connector 36 and other components located in the storage box 7 can be sealed and fixed in the storage box 7. It should be noted that when the ablation electrode device is assembled, the first connector 25, the second connector 36 and part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 are first placed in the accommodating cavity 74 of the storage box 7 that has not been filled with the curing glue 10. The first connector 25 is arranged in the first receiving groove 72, and the second connector 36 is arranged in the second receiving groove 73, and the two are insulated and isolated by the baffle 71. Subsequently, the cover 75 is snapped onto the accommodating cavity 74, and finally, the curing glue 10 is poured into the groove of the storage box 7 from the opening 751 on the cover 75, and the curing glue 10 covers the first joint 25, the second joint 36 and a part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, and the second wire 6. After the curing treatment of the curing glue 10, the storage box 7 forms an approximately closed structure, and the first joint 25, the second joint 36 and a part of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, and the second wire 6 are encapsulated and fixed in the storage box 7.

[0027] In some optional embodiments, only the first joint 25 and the second joint 36 located in the storage box 7 may be encapsulated and fixed with the curing glue 10, and the curing glue 10 is not provided at part of the first insulating tube 21, part of the second insulating tube 31, the double-lumen tube 8, part of the first wire 5 and part of the second wire located in the storage box 7. This application does not make specific restrictions, and mainly ensures that the first joint 25 and the second joint 36 are encapsulated and fixed in the storage box 7 by the curing glue 10. In some optional embodiments, only the first joint 25 and the second joint 36 may be provided in the storage box 7, or the first joint 25, the second joint 36 and one or more of the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6, and the sheath 9 may be provided in the storage box 7. This application does not make specific restrictions, and mainly ensures that the first joint 25 and the second joint 36 are provided in the storage box 7.

[0028] It should be noted that in order to more clearly illustrate the present invention with the accompanying drawings, Figure 4-Figure 8 The first connector 25, the second connector 36, the first insulating tube 21, the second insulating tube 31, the double-lumen tube 8, the first wire 5, the second wire 6 and the sheath 9 disposed in the storage box 7 are not shown. Figure 4-Figure 8 The main display is a structure of a storage box 7 in an ablation electrode device with an improved internal structure of the handle, but it is not intended to limit the present invention.

[0029] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An ablation electrode device with an improved internal structure of a handle, characterized in that: It comprises an outer sleeve (1), an emitter needle (2) and a return needle (3) arranged in the outer sleeve (1), a handle (4) of a hollow structure connected to the outer sleeve (1), a first wire (5) electrically connected to the emitter needle (2), and a second wire (6) electrically connected to the return needle (3); A storage box (7) is disposed in the handle (4), and a baffle (71) made of insulating material is used to form a first storage groove (72) and a second storage groove (73) separated from each other in the storage box (7); The emitter needle (2) and the first conductive wire (5) are fixedly connected in the first receiving groove (72) to form a first joint (25); The loop pole needle (3) and the second conductive wire (6) are fixedly connected in the second receiving groove (73) to form a second joint (36).

2. The ablation electrode device with improved internal structure of the handle according to claim 1, characterized in that: The storage box (7) is filled with curing glue (10), and the curing glue (10) seals and fixes the first joint (25) and the second joint (36) in the storage box (7).

3. The ablation electrode device with improved handle internal structure according to claim 1, characterized in that: The first joint (25) is used to fix one end of the emitter needle (2) and one end of the first wire (5) via a first metal connecting sleeve (251); The second joint (36) is connected at one end of the loop pole needle (3) to one end of the second wire (6) via a second metal connecting sleeve (361).

4. The ablation electrode device with improved internal structure of the handle according to claim 1, characterized in that: A first insulating tube (21) is provided outside a portion of the emitter needles (2); A second insulating tube (31) is disposed outside a portion of the loop pole needles (3); A double-lumen tube (8) is sheathed outside the first insulating tube (21) and the second insulating tube (31); The double-lumen tube (8) together with the emitter needle (2) and the return needle (3) wrapped by the double-lumen tube (8) extend inside the outer sleeve (1) and extend out from an end of the outer sleeve (1) away from the handle (4); One end of the double-lumen tube (8) is arranged in the storage box (7).

5. The ablation electrode device with improved internal structure of the handle according to claim 1, characterized in that: The extending direction of the baffle (71) is parallel to the axial direction of the outer sleeve (1); The baffle (71) and the storage box (7) are integrally formed.

6. The ablation electrode device with improved internal structure of the handle according to claim 1, characterized in that: The storage box (7) comprises a receiving cavity (74) and a cover (75) that are snapped together; The baffle (71) is arranged on an upper side surface (78) of the bottom surface of the accommodating chamber (74), and the upper side surface (78) faces the cover (75).

7. The ablation electrode device with improved internal structure of the handle according to claim 6, characterized in that: The storage box (7) is filled with curing glue (10), and the curing glue (10) seals and fixes the first joint (25) and the second joint (36) in the storage box (7).

8. The ablation electrode device with improved handle internal structure according to claim 7, characterized in that: At least one opening (751) is provided on the cover (75).

9. The ablation electrode device with improved internal structure of the handle according to claim 6, characterized in that: The first conductive wire (5) except for the portion near the first joint (25) and the second conductive wire (6) except for the portion near the second joint (36) are wrapped with a sheath (9); One end of the sheath (9) is fixed in the storage box (7), and the remaining portion of the sheath (9) extends from a first end surface (76) of the storage box (7) away from the outer sleeve (1).

10. The ablation electrode device with improved internal structure of the handle according to claim 6, characterized in that: A protrusion (791) extending along the length direction of the storage box (7) is provided on the lower side surface (79) of the bottom surface of the accommodating cavity (74), and the lower side surface (79) faces away from the cover (75); A groove extending along the length direction of the handle (4) is provided on the inner side surface of the handle (4); The protrusion (791) is embedded in the groove.

Images