Radiofrequency ablation electrode assembly for treating rhinitis symptoms

Abstract

The utility model relates to a radiofrequency ablation electrode assembly for treating rhinitis symptoms, and relates to the technical field of medical instruments. The radiofrequency ablation electrode assembly for treating the rhinitis symptom comprises a head assembly, a connecting assembly, a handle assembly and a cable assembly. The head assembly is assembled at the front end of the connecting assembly, the rear end of the connecting assembly is connected with the handle assembly, and the cable assembly penetrates through the head assembly, the connecting assembly and the handle assembly. The head assembly comprises an electrode shell, a temperature measuring unit and an electrode; the connecting assembly comprises a connecting rod, a stay wire, a long connecting rod, a short connecting rod, a button and a bidirectional connecting rod; a cable cavity channel, a stay wire cavity channel and an endoscope cavity channel are formed in the connecting rod in the length direction of the connecting rod. The radiofrequency ablation electrode assembly is used in cooperation with a radiofrequency ablation host and used for ablation treatment of rhinitis symptoms.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a radio frequency ablation electrode assembly for treating rhinitis symptoms. Background Art

[0002] When treating the symptoms caused by chronic rhinitis, traditional treatment methods are drug therapy or surgical removal of the inferior turbinate to relieve rhinitis symptoms. Traditional surgical methods are very harmful to the human body. Since it involves the removal of the inferior turbinate, the surgery cannot be performed as an outpatient surgery and requires hospitalization. General anesthesia is required during the operation, and the position of the inferior turbinate must be determined by CT. The surgical steps are relatively cumbersome and the cost of surgery and examination is high. Due to the great damage to the body, there are many problems to be faced after the operation and the prognosis is poor.

[0003] At present, most of the surgeries used are minimally invasive surgeries, and there are many forms of minimally invasive surgeries, including plasma cryo-RF ablation, microwave ablation, laser ablation, etc. This product is mainly used for minimally invasive surgery using radiofrequency ablation to treat nasal congestion, nasal obstruction, runny nose, tears and other symptoms caused by chronic rhinitis. Utility Model Content

[0004] In order to solve the above technical problems existing in the prior art, the purpose of the utility model is to provide a radiofrequency ablation electrode assembly for treating rhinitis symptoms.

[0005] The utility model discloses a radiofrequency ablation electrode assembly for treating rhinitis symptoms, comprising a head assembly, a connection assembly, a handle assembly and a cable assembly; the head assembly is assembled at the front end of the connection assembly, the rear end of the connection assembly is connected to the handle assembly, and the cable assembly runs through the head assembly, the connection assembly and the handle assembly; the head assembly comprises an electrode shell, a temperature measuring unit and an electrode; the electrode shell comprises an electrode shell upper cover and an electrode shell base; the connection assembly comprises a connecting rod, a pull wire, a long connecting rod, a short connecting rod, a button and a two-way connecting rod; a cable cavity, a pull wire cavity and an endoscope cavity are arranged in the connecting rod along the length direction of the connecting rod; the endoscope cavity A nasal endoscope is arranged in the channel; the first end of the pull wire is connected to the lower end of the two-way connecting rod in the handle assembly, and the end of the first end is also connected to the spring fixing column on the inner wall of the handle assembly through a spring; the upper end of the two-way connecting rod is connected to one end of the button push rod, and the button push rod is connected to the button; the second end of the pull wire passes through the pull wire cavity of the connecting rod and is connected to the first end of the long connecting rod and the first end of the short connecting rod; the second ends of the long connecting rod and the short connecting rod are connected and fixed to the inside of the electrode housing; the endoscope cavity is arranged at the lower inside of the connecting rod; the cables in the cable assembly are connected to the electrodes and the temperature measuring unit in the head assembly through the cable cavity in the connecting rod.

[0006] Wherein, the electrode is an integrated structure, and the portion of the electrode exposed from the upper cover of the electrode shell is a point-shaped contact structure arranged at intervals.

[0007] Wherein, the head component includes two electrodes arranged side by side, and a temperature measuring unit is arranged between the two electrodes.

[0008] The electrode and the temperature measuring unit are arranged in the electrode shell, and the point contact structure of the electrode and the contact end of the temperature measuring unit extend out of the upper cover of the electrode shell.

[0009] Wherein, the button push rod is connected to the button by bonding, welding or integral molding.

[0010] There are two pull wires and two buttons, and the electrodes are controlled respectively by the two pull wires.

[0011] The handle assembly is composed of a first handle and a second handle, and a fixing hole connected to the connecting rod and a through hole connected to the cable assembly are arranged inside the handle assembly.

[0012] The head assembly includes a tubular electrode shell, a thermocouple and a plurality of columnar electrodes, and the side wall of the tubular electrode shell is provided with an electrode opening hole and a thermocouple opening hole.

[0013] A PCB board is arranged in the head assembly, and the columnar electrode is installed on the electrode hole of the PCB board and passes through the electrode opening hole, and the thermocouple is arranged on the thermocouple connection point of the PCB board and passes through the thermocouple opening hole; the PCB board is connected to the cable of the cable assembly.

[0014] Wherein, the cable assembly includes a cable and a cable connector, and the cable connector is fixed at the rear end of the handle assembly.

[0015] Compared with the prior art, the radiofrequency ablation electrode assembly for treating rhinitis symptoms of the utility model has the following beneficial effects:

[0016] The radiofrequency ablation electrode assembly for treating rhinitis symptoms of the utility model is used in conjunction with a radiofrequency ablation host, and a minimally invasive surgery using radiofrequency energy to ablate the posterior nasal nerve can be performed with only local anesthesia, and no CT examination is required during use. The operation time is short and hospitalization observation is not required. The radiofrequency ablation electrode assembly can be controlled by the handle to contact the mucosa at a specific angle during treatment to complete ablation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a radiofrequency ablation electrode assembly for treating rhinitis symptoms according to Example 1;

[0018] Figure 2 is a schematic structural diagram of a head assembly in a radiofrequency ablation electrode assembly according to Example 1;

[0019] Figure 3 It is a schematic structural diagram of the housing in the head assembly of Example 1;

[0020] Figure 4 is a schematic diagram of the structure of the electrodes in the head assembly of Example 1;

[0021] Figure 5 is a schematic diagram of a temperature measuring unit in the head assembly of Example 1;

[0022] Figure 6 It is a structural schematic diagram of a connecting assembly in a radiofrequency ablation electrode assembly of Example 1;

[0023] Figure 7 is a schematic structural diagram of a connecting rod in a radiofrequency ablation electrode assembly of Example 1;

[0024] Figure 8 It is a structural schematic diagram of a handle assembly in a radiofrequency ablation electrode assembly of Example 1;

[0025] Fig. 9 is a schematic diagram of the structures of various electrodes in the radiofrequency ablation electrode assembly of Example 1;

[0026] Fig.10 This is a schematic structural diagram of a radiofrequency ablation electrode assembly for treating rhinitis symptoms according to Example 2;

[0027] Fig.11 is a schematic structural diagram of a head assembly in a radiofrequency ablation electrode assembly according to Example 2;

[0028] Fig.12 It is a schematic structural diagram of the housing in the head assembly of Example 2;

[0029] Fig.13 is a schematic diagram of the structure of the electrodes in the head assembly of Example 2;

[0030] Fig.14 This is a schematic diagram of PCB wiring in the radio frequency ablation electrode assembly of Example 2;

[0031] Fig.15 It is a structural schematic diagram of a cable assembly in a radiofrequency ablation electrode assembly of Example 3;

[0032] Fig.16 This is a schematic diagram of the structure of the radiofrequency ablation electrode assembly for treating rhinitis symptoms according to Example 3. DETAILED DESCRIPTION

[0033] The following will further describe the radiofrequency ablation electrode assembly for treating rhinitis symptoms of the present invention in combination with specific embodiments and drawings to help those skilled in the art have a more complete, accurate and in-depth understanding of the technical solution of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0035] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it is not necessary to further define and explain it in the subsequent drawings. In the description of the embodiment of the utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when used, it is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. If the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the embodiments of the present utility model, "multiple" means at least 2. In the description of the embodiments of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "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 directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0036] Example 1

[0037] like Figure 1-9 As shown, the radiofrequency ablation electrode assembly of this embodiment includes a head assembly 100, a connection assembly 200, a handle assembly 300 and a cable assembly. The head assembly 100 is assembled at the front end of the connection assembly 200, the rear end of the connection assembly 200 is connected to the handle assembly 300, and the cable assembly runs through the head assembly 100, the connection assembly 200 and the handle assembly 300. The head assembly 100 includes an electrode housing 101, a temperature measuring unit 103 and an electrode 102. The electrode 102 is an integrated structure. The electrode housing 101 includes an electrode housing upper cover and an electrode housing base. The portion of the electrode 102 exposed from the electrode housing upper cover is a point contact structure arranged at intervals. The head assembly 100 includes two electrodes 102 arranged side by side, and a temperature measuring unit 103 is arranged between the two electrodes 102. The electrodes 102 and the temperature measuring unit 103 are arranged in the electrode housing 101, and the point contact structure of the electrode 102 and the contact end of the temperature measuring unit 103 extend out of the upper end of the electrode housing 101. Fig. 9 As shown, the electrode 102 may have a columnar or square point contact structure, or the electrode 102 may have a horizontal tubular structure. The connecting assembly 200 includes a connecting rod 200, a pull wire 213, a long connecting rod 211, a short connecting rod 212, a button 214 and a bidirectional connecting rod. A cable cavity 221, a pull wire cavity 222 and an endoscope cavity 223 are arranged in the connecting rod 200 along the length direction of the connecting rod 200. The first end of the pull wire 213 is connected to the lower end of the bidirectional connecting rod in the handle assembly 300, and the end of the first end is also connected to the spring fixing column on the inner wall of the handle assembly 300 through a spring. The upper end of the bidirectional connecting rod is connected to one end of the button push rod, and the button push rod and the bidirectional connecting rod can be fixed by a pin, and the button push rod and the button 214 can be connected by bonding, welding or integral molding. The second end of the pull wire 213 passes through the pull wire cavity 222 of the connecting rod 220 and is connected to the first end of the long connecting rod 211 and the first end of the short connecting rod 212 through a locating pin. The second ends of the long connecting rod 211 and the short connecting rod 212 are connected and fixed to the inside of the electrode housing 101 through a locating pin. The rebound of the spring can ensure the rebound of the button, thereby realizing the functional requirement of repeated use. The change in the angle of the head assembly of the ablation electrode is controlled by the button 214 in the operating handle assembly, so as to achieve a better fit with the mucosa of the ablation area and to ablate multiple angles and areas. In this embodiment, the number of the pull wires and buttons is two, and the upward and downward movements of the electrode head can be controlled respectively by the two pull wires.

[0038] In this embodiment, the connecting rod 200 in the above-mentioned connecting assembly is a connecting rod with a multi-cavity structure. The connecting rod is provided with multiple cavities, and the functions of each cavity of the connecting rod are different. The connecting rod is provided with an endoscope cavity 223, and the endoscope cavity 223 allows the endoscope to be used simultaneously with this product. The endoscope cavity 223 is arranged at the lower part of the connecting rod 220 to ensure that the contact between the head assembly and the nasal mucosa can be observed after the endoscope passes through the endoscope cavity. This design concept can achieve the synchronization of the endoscope and the ablation electrode assembly, and at the same time can reduce the difficulty of the operation of the endoscope and the damage to the nasal cavity when the endoscope and the ablation electrode assembly are respectively extended into the nasal cavity. The simultaneous extension of the endoscope and the ablation electrode assembly into the nasal cavity can reduce the operation of the endoscope to determine the observation area, and reduce the difficulty of operation and the operation time. This design concept can ensure that the endoscope is directly below the connecting rod after being extended into the nasal cavity, and the ablation area can be observed in real time with a relatively good viewing angle. The advantage is that the endoscope cavity can not only observe the ablation area of ​​the head assembly, but also can be freely observed. The cables in the cable assembly can also be connected to the electrodes 102 and the temperature measuring unit 103 in the head assembly 100 through the cable cavity 221 in the connecting rod 220. The connecting assembly can control the bending of the radiofrequency ablation electrode. After the head assembly is extended into the nasal cavity, the bending angle of the head assembly can be controlled separately by two buttons on the control handle. One button can control the bending of the connecting rod, thereby causing the head assembly to deflect at a specific angle in the direction away from the handle, and the other button can control the bending of the connecting rod to cause the head assembly to deflect at a specific angle in the direction of the handle. This design concept can better contact the electrodes in the above-mentioned head assembly with the mucosa inside the nasal cavity. The handle assembly is composed of a first handle 301 and a second handle 302, which are connected by a positioning member and fixed by a fixing pin. The handle assembly is provided with a fixing hole connected to the connecting rod 220 and a through hole connected to the cable assembly.

[0039] Example 2

[0040] The radiofrequency ablation electrode assembly of this embodiment is as follows Figure 10-14 The difference between the embodiment 1 and the embodiment 1 is that a different head assembly 700 is used. The head assembly 700 includes a tubular housing 701, a thermocouple and a plurality of columnar electrodes 702. The side wall of the tubular electrode housing 701 is provided with an electrode opening hole and a thermocouple opening hole. A PCB board is provided in the head assembly 700, and the columnar electrode 702 is installed on the electrode hole 801 of the PCB board and passes through the electrode opening hole, and the thermocouple is arranged on the thermocouple connection point 802 of the PCB board and passes through the thermocouple opening hole. The PCB board is connected to the cable of the cable assembly.

[0041] Example 3

[0042] like Figure 15-16 As shown, the cable assembly 400 in the radiofrequency ablation electrode assembly of this embodiment includes a cable 402 and a cable connector 401. The cable connector 401 is fixed to the rear end of the handle assembly, and the cable connector and the handle assembly can be connected by threads.

[0043] This embodiment can be used in conjunction with a nasal endoscope to successfully complete the operation. When using this product, the RF ablation host should be connected to the RF ablation host first, and then the electrode head should be coated with gel. After the nasal endoscope is inserted into the nasal cavity, the handheld ablation electrode head should be inserted into the nasal cavity again. After the nasal endoscope determines the ablation position, the ablation electrode head is completely attached to the mucosa at the ablation position and then ablation is started. The electrode head assembly will change position during the ablation process, requiring the cooperation of the nasal endoscope. The RF ablation electrode assembly of this embodiment can simplify the surgical steps and reduce the overall surgical time. When this product is used, the designed ablation parameters are a single ablation time of about 12s. Each treatment only requires 4-5 ablations to complete the blockade of the posterior nasal nerve, and the overall surgical time is within 30 minutes.

Claims

1. A radiofrequency ablation electrode assembly for treating rhinitis symptoms, characterized in that: It includes a head assembly, a connection assembly, a handle assembly and a cable assembly; the head assembly is assembled at the front end of the connection assembly, the rear end of the connection assembly is connected to the handle assembly, and the cable assembly runs through the head assembly, the connection assembly and the handle assembly; the head assembly includes an electrode shell, a temperature measuring unit and an electrode; the electrode shell includes an electrode shell upper cover and an electrode shell base; the connection assembly includes a connecting rod, a pull wire, a long connecting rod, a short connecting rod, a button and a two-way connecting rod; a cable cavity, a pull wire cavity and an endoscope cavity are arranged in the connecting rod along the length direction of the connecting rod; a nasal endoscope is arranged in the endoscope cavity; The first end of the pull wire is connected to the lower end of the two-way connecting rod in the handle assembly, and the end of the first end is also connected to the spring fixing column on the inner wall of the handle assembly through a spring; the upper end of the two-way connecting rod is connected to one end of the button push rod, and the button push rod is connected to the button; the second end of the pull wire passes through the pull wire cavity of the connecting rod and is connected to the first end of the long connecting rod and the first end of the short connecting rod; the second ends of the long connecting rod and the short connecting rod are connected and fixed to the inside of the electrode housing; the endoscope cavity is arranged at the inside and below of the connecting rod; the cables in the cable assembly are connected to the electrodes and the temperature measuring unit in the head assembly through the cable cavity in the connecting rod.

2. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 1, characterized in that: The electrode is an integrated structure, and the portion of the electrode exposed from the upper cover of the electrode shell is a point-shaped contact structure arranged at intervals.

3. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 2, characterized in that: The head assembly includes two electrodes arranged side by side, and a temperature measuring unit is arranged between the two electrodes.

4. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 3, characterized in that: The electrode and the temperature measuring unit are arranged in the electrode shell, and the point contact structure of the electrode and the contact end of the temperature measuring unit extend out of the upper cover of the electrode shell.

5. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 1, characterized in that: The button push rod is connected to the button by bonding, welding or integral molding.

6. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 1, characterized in that: There are two pull wires and two buttons, and the electrodes are controlled respectively by the two pull wires.

7. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 1, characterized in that: The handle assembly is composed of a first handle and a second handle. A fixing hole connected to the connecting rod and a through hole connected to the cable assembly are arranged inside the handle assembly.

8. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 1, characterized in that: The head assembly comprises a tubular electrode shell, a thermocouple and a plurality of columnar electrodes. The side wall of the tubular electrode shell is provided with an electrode opening hole and a thermocouple opening hole.

9. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 8, characterized in that: A PCB board is arranged in the head assembly, and the columnar electrode is mounted on the electrode hole of the PCB board and passes through the electrode opening hole, and the thermocouple is arranged on the thermocouple connection point of the PCB board and passes through the thermocouple opening hole; The PCB board is connected to the cable of the cable assembly.

10. The radiofrequency ablation electrode assembly for treating rhinitis symptoms according to claim 1, characterized in that: The cable assembly includes a cable and a cable connector, and the cable connector is fixed at the rear end of the handle assembly.

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