Bipolar radio frequency planing cutter and planing device

Abstract

The utility model relates to a bipolar radio frequency planing cutter and a planing device, in the using process, negative pressure suction is achieved through a suction channel, so that when an inner cutter tube rotates around the circumferential direction relative to an outer cutter tube, tissue in a focus area can be rotationally cut off through relative shearing of a first planing opening and a second planing opening. When bleeding occurs at the affected part, the main machine supplies power to the electrode tube and the outer knife tube through the conductive plug, and when the main machine makes contact with tissue, the electrode tube and the outer knife tube are electrically conducted to form a loop, so that electric coagulation hemostasis can be conducted on the affected part, hemostasis can be conducted on the affected part without other extra hemostasis instruments, operation is easy and convenient, and the working efficiency is improved. And the operation time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially is related to a kind of bipolar radio frequency planing cutter and planing device. BACKGROUND

[0002] Planing device is a kind of common surgical power device, and has been widely applied in clinical surgery.Planing device is driven by power output, and the lesion area tissue is rotated and removed by using the planing cutter at the front end, and bleeding and other problems are easily caused in the planing process.The traditional method is that the doctor stops the current planing operation, and then uses other hemostatic instrument to stop bleeding at the affected area, which is not only inconvenient to operate, but also increases the operation time. SUMMARY

[0003] Therefore, it is necessary to provide a bipolar radio frequency planing cutter and planing device to solve the technical problems of inconvenient operation and increased operation time.

[0004] The technical scheme is as follows:

[0005] On the one hand, a bipolar radio frequency planing cutter is provided, which comprises:

[0006] An outer cutter assembly comprises an outer cutter tube, an electrode tube and an outer cutter shell, the outer cutter tube is provided with an insertion channel extending in the axial direction and a first planing opening, the first planing opening is located at the front end of the outer cutter tube and is in communication with the insertion channel, the electrode tube is sleeved on part of the outer circumferential side of the outer cutter tube and is in gap cooperation with the outer cutter tube to form an isolation channel, the outer cutter shell is sleeved on part of the outer side wall of the electrode tube, the outer cutter shell is provided with a conductive interface adapted to a conductive plug, a first insertion opening in communication with the conductive interface and a second insertion opening in communication with the conductive interface, and the first insertion opening extends to the electrode tube to make the electrode tube conductive to form one pole, and the second insertion opening extends to the outer cutter tube to make the outer cutter tube conductive to form another pole; and

[0007] An inner cutter tube is partially inserted into the insertion channel and can rotate in the circumferential direction, the inner cutter tube is provided with a suction channel extending in the axial direction and a second planing opening, the second planing opening is located at the front end of the inner cutter tube and is in communication with the suction channel, and the second planing opening is in corresponding communication with the first planing opening.

[0008] The technical scheme is further described as follows:

[0009] In one embodiment, the outer cutter assembly further comprises an isolation sleeve, the isolation sleeve is located in the isolation channel, the isolation sleeve is sleeved on part of the outer side wall of the outer cutter tube, and the electrode tube is sleeved on part of the outer side wall of the isolation sleeve.

[0010] In one of the embodiments, the inner side wall of the outer cutter shell is provided with a first limiting part, one end of the isolating sleeve away from the first shaving opening is in limiting cooperation with the first limiting part, and the first limiting part is located between the first insertion opening and the second insertion opening along the axial direction of the outer cutter tube.

[0011] In one of the embodiments, the outer cutter assembly further comprises an insulating sleeve, the insulating sleeve is sleeved on part of the outer side wall of the electrode tube, and the electrode tube is partially located outside the insulating sleeve at one end close to the first shaving opening, and the outer cutter shell is sleeved on part of the outer side wall of the insulating sleeve.

[0012] In one of the embodiments, the inner side wall of the outer cutter shell is provided with a second limiting part, one end of the isolating sleeve away from the first shaving opening is in limiting cooperation with the second limiting part, and the second limiting part is located close to the first shaving opening relative to the first insertion opening.

[0013] In one of the embodiments, the inner cutter tube and the outer cutter tube are gap-fitted to form a liquid injection channel, the outer cutter shell is provided with a liquid injection interface, the outer cutter tube is provided with a connecting through hole communicating the liquid injection interface and the liquid injection channel, and the liquid injection interface and the conductive interface are located on the same side of the outer cutter shell.

[0014] In one of the embodiments, the bipolar radio frequency shaving cutter further comprises a dynamic sealing element, the dynamic sealing element is arranged between the inner cutter tube and the outer cutter shell, and the dynamic sealing element is located on the side away from the second shaving opening relative to the liquid injection interface.

[0015] In one of the embodiments, one end of the inner cutter tube away from the second shaving opening is sleeved with an inner cutter shell, and the bipolar radio frequency shaving cutter further comprises a static sealing element, the static sealing element is arranged between the inner cutter tube and the inner cutter shell.

[0016] In one of the embodiments, the inner side wall of the outer cutter shell is provided with a third limiting part, one end of the electrode tube away from the first shaving opening is in limiting cooperation with the third limiting part, and the third limiting part is located between the first insertion opening and the second insertion opening along the axial direction of the outer cutter tube.

[0017] In another aspect, a shaving device is provided, comprising a power handle, a main machine and the bipolar radio frequency shaving cutter, the main machine is electrically connected with the bipolar radio frequency shaving cutter, and the power handle is in transmission connection with the inner cutter tube to drive the inner cutter tube to rotate circumferentially.

[0018] The bipolar radio frequency planing tool and the planing device of the above-mentioned embodiments realize negative pressure suction through the suction channel in use, so that when the inner cutter tube rotates relative to the outer cutter tube in the circumferential direction, the lesion area tissue can be rotated and cut through the relative shearing of the first planing opening and the second planing opening. When the affected area bleeds, the main machine supplies power to the electrode tube and the outer cutter tube through the conductive plug, and when the tissue is contacted, the electrode tube and the outer cutter tube are electrically conducted to form a loop, so that the affected area can be coagulated and hemostasia, and the affected area can be hemostasia without additional hemostasia instruments, which is not only simple and convenient to operate, but also shortens the operation time. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions serve the purpose of explaining the present application and do not constitute improper limitations to the present application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without creative labor on the premise of the accompanying drawings.

[0021] Figure 1 FIG. 1 is a structural schematic view of a bipolar radio frequency planing tool according to an embodiment of the present application;

[0022] Figure 2 FIG. 2 is an axial sectional view of the bipolar radio frequency planing tool of FIG. 1; Figure 1

[0023] Figure 3 FIG. 4 is a partial enlarged view of part A of the bipolar radio frequency planing tool of FIG. 1; Figure 2

[0024] Figure 4 FIG. 6 is a partial enlarged view of part B of the bipolar radio frequency planing tool of FIG. 1; Figure 2

[0025] Figure 5 FIG. 8 is a partial enlarged view of part C of the bipolar radio frequency planing tool of FIG. 1. Figure 2 Legend of reference signs:

[0026]

[0027] ​​​​10, bipolar radio frequency shaving tool; 100, outer knife assembly; 110, outer knife tube; 111, plug-in channel; 112, first shaving opening; 113, connecting through hole; 120, electrode tube; 130, outer knife shell; 131, conductive interface; 132, first socket; 133, second socket; 134, first limiting part; 135, second limiting part; 136, liquid injection interface; 137, third limiting part; 140, isolation channel; 150, isolation sleeve; 160, insulating sleeve; 200, inner knife tube; 210, suction pipeline; 220, second shaving opening; 230, inner knife shell; 300, liquid injection channel; 400, conductive plug; 410, conductive needle; 500, dynamic sealing element; 600, static sealing element. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent and easy to understand, the specific embodiments of the utility model will be described in detail below in combination with the drawings. In the following description, a large number of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] As shown in Figure 1 and Figure 2 , in one embodiment, a shaving device is provided, comprising a power handle (not shown), a main machine (not shown) and a bipolar radio frequency shaving tool 10.

[0030] Among them, the power handle can be an existing handle structure that can provide rotary driving force. The power handle is in transmission connection with the bipolar radio frequency shaving tool 10 to drive the bipolar radio frequency shaving tool 10 to rotate and remove the tissue in the lesion area.

[0031] Among them, the main machine can be an existing component that can provide electrical energy. The main machine is in electrical connection with the bipolar radio frequency shaving tool 10, so that the main machine provides electrical energy for the bipolar radio frequency shaving tool 10, so that the bipolar radio frequency shaving tool 10 can coagulate and stop bleeding at the affected area, without the need for additional hemostatic instruments, which not only simplifies and facilitates operation, but also shortens the operation time.

[0032] As shown in Figure 1 and Figure 3 , in one embodiment, a bipolar radio frequency shaving tool 10 is provided, comprising an outer knife assembly 100 and an inner knife tube 200.

[0033] As shown in Figure 3 and Figure 4As shown, the external blade assembly 100 includes an external blade tube 110, an electrode tube 120, and an external blade housing 130. The external blade tube 110 has an axially extending insertion channel 111 and a first planing opening 112 located at the front end of the external blade tube 110 and communicating with the insertion channel 111. Optionally, the front end of the external blade tube 110 refers to the end facing or close to the affected area during surgery. The electrode tube 120 is sleeved on a portion of the outer peripheral side of the external blade tube 110 and forms an isolation channel 140 with a clearance fit with the external blade tube 110. That is, the electrode tube 120 and the external blade tube 110 do not directly contact each other and are not directly electrically connected, thus avoiding short circuits. The external blade housing 130 is sleeved on a portion of the outer wall of the electrode tube 120. Furthermore, the outer blade housing 130 is provided with a conductive interface 131 adapted to the conductive plug 400, a first socket 132 communicating with the conductive interface 131, and a second socket 133 communicating with the conductive interface 131. Thus, when the conductive plug 400 is inserted into the conductive interface 131, the two conductive pins 410 of the conductive plug 400 can be respectively inserted into the first socket 132 and the second socket 133, thereby transmitting the electrical energy of the host to the bipolar radio frequency planing tool 10 through the conductive plug 400. Moreover, the first socket 132 extends to the electrode tube 120 to make the electrode tube 120 conductive to form one pole, and the second socket 133 extends to the outer blade tube 110 to make the outer blade tube 110 conductive to form the other pole, thereby enabling the outer blade tube 110 and the electrode tube 120 to form a circuit, thereby enabling electrocoagulation hemostasis at the affected area.

[0034] It should be noted that the conductive plug 400 can be an existing connector structure with two conductive pins 410, and electrical connection with the host can be achieved through the conductive plug 400 and the corresponding wire.

[0035] like Figure 3 and Figure 4 As shown, the circumferentially rotatable portion of the inner blade tube 200 is inserted into the insertion channel 111. The inner blade tube 200 has an axially extending suction channel and a second shaving port 220 located at the front end of the inner blade tube 200 and communicating with the suction channel. Optionally, the front end of the inner blade tube 200 refers to the end facing or close to the affected area during the operation. Furthermore, the suction channel can create a vacuum environment to suck up tissue for easy removal, and the removed tissue can be suctioned out. The second shaving port 220 can communicate with the first shaving port 112.

[0036] It should be noted that when the second planing opening 220 is rotated to be on the same side as the first planing opening 112, the second planing opening 220 and the first planing opening 112 are connected.

[0037] Optionally, the inner cutter tube 200 is provided with a second shaving opening 220, one end of which is inserted into the insertion channel 111 of the outer cutter tube 110 until the second shaving opening 220 is in communication with the first shaving opening 112, and the other end of the inner cutter tube 200 is in transmission connection with the power handle in the form of insertion or clamping, so that the power handle can drive the inner cutter tube 200 to rotate around the circumference relative to the outer cutter tube 110, and then the lesion area tissue can be rotated and removed.

[0038] Optionally, the first shaving opening 112 and the second shaving opening 220 can be provided with a tooth-like structure for shaving to enhance the shaving effect.

[0039] During use of the bipolar radiofrequency shaving cutter 10 of the above embodiment, negative pressure suction is achieved through the suction channel, so that when the inner cutter tube 200 rotates around the circumference relative to the outer cutter tube 110, the lesion area tissue can be rotated and removed through the relative shearing of the first shaving opening 112 and the second shaving opening 220. When the affected area bleeds, the main machine supplies power to the electrode tube 120 and the outer cutter tube 110 through the conductive plug 400, and when the tissue is contacted, the electrode tube 120 and the outer cutter tube 110 are electrically connected to form a loop, so that the affected area can be coagulated to stop bleeding, without the need for additional hemostatic instruments, which not only simplifies and facilitates the operation, but also shortens the operation time.

[0040] As shown in Figure 3 and Figure 4 In one embodiment, the outer cutter assembly 100 further includes an isolation sleeve 150. The isolation sleeve 150 is located in the isolation channel 140, and the isolation sleeve 150 is sleeved on part of the outer side wall of the outer cutter tube 110, and the electrode tube 120 is sleeved on part of the outer side wall of the isolation sleeve 150. In this way, the electrode tube 120 and the outer cutter tube 110 are insulated and isolated by the isolation sleeve 150, so that the electrode tube 120 and the outer cutter tube 110 do not directly contact and do not directly electrically connect, avoiding short circuit.

[0041] It should be noted that the isolation sleeve 150 is sleeved on part of the outer side wall of the outer cutter tube 110, so that after the outer cutter tube 110 is inserted into the affected area, the outer cutter tube 110 can be electrically connected with the electrode tube 120 to form a loop under the conduction of the tissue and the physiological saline and other liquids.

[0042] The isolation sleeve 150 can be made of insulating materials such as rubber.

[0043] As shown in Figure 3As shown, optionally, the inner side wall of the outer knife shell 130 is provided with a first limiting portion 134. Wherein, one end of the isolation sleeve 150 away from the first planing opening 112 is in limiting cooperation with the first limiting portion 134, and the first limiting portion 134 is located between the first insertion opening 132 and the second insertion opening 133 along the axial direction of the outer knife tube 110. In this way, the isolation sleeve 150 is prevented from shielding the second insertion opening 133, so that the second insertion opening 133 can extend to the outer knife tube 110, thereby enabling the electrically conductive plug 400 to be electrically connected to the outer knife tube 110 through the second insertion opening 133. Moreover, the first limiting portion 134 can also limit and constrain the installation position of the isolation sleeve 150 relative to the outer knife tube 110, thereby ensuring assembly accuracy.

[0044] Wherein, the first limiting portion 134 can be a limiting step, a limiting protrusion, or other limiting structure.

[0045] As shown in Figure 3 and Figure 4 In one embodiment, the outer knife assembly 100 further includes an insulating sleeve 160. Wherein, the insulating sleeve 160 is sleeved on part of the outer side wall of the electrode tube 120, and the part of the electrode tube 120 near the first planing opening 112 is located outside the insulating sleeve 160, and the outer knife shell 130 is sleeved on part of the outer side wall of the insulating sleeve 160. In this way, the insulating sleeve 160 insulates part of the outer side wall of the electrode tube 120 from the outside, thereby preventing safety accidents such as electric shock during use.

[0046] It should be noted that the insulating sleeve 160 is sleeved on part of the outer side wall of the electrode tube 120, so that the electrode tube 120 can be electrically connected to the outer knife tube 110 through the tissue and physiological saline after being inserted into the affected area.

[0047] Wherein, the insulating sleeve 160 can be made of rubber or other insulating materials.

[0048] As shown in Figure 3 Optionally, the inner side wall of the outer knife shell 130 is provided with a second limiting portion 135. Wherein, one end of the insulating sleeve 160 away from the first planing opening 112 is in limiting cooperation with the second limiting portion 135, and the second limiting portion 135 is arranged closer to the first planing opening 112 relative to the first insertion opening 132. In this way, the insulating sleeve 160 is prevented from shielding the first insertion opening 132, so that the first insertion opening 132 can extend to the electrode tube 120, thereby enabling the electrically conductive plug 400 to be electrically connected to the electrode tube 120 through the first insertion opening 132. Moreover, the second limiting portion 135 can also limit and constrain the installation position of the insulating sleeve 160 relative to the electrode tube 120, thereby ensuring assembly accuracy.

[0049] Wherein, the second limiting portion 135 can be a limiting step, a limiting protrusion, or other limiting structure.

[0050] like Figure 3 As shown, in one embodiment, the inner blade 200 and the outer blade tube 110 are fitted together to form an injection channel 300. Physiological saline or other liquids are injected through the injection channel 300, and the liquid reaches the affected area through the second shaving port 220 and the first shaving port 112. Furthermore, the outer blade housing 130 is provided with an injection port 136, and the outer blade tube 110 is provided with a connecting through hole 113 connecting the injection port 136 and the injection channel 300. Thus, physiological saline or other liquids are injected into the injection channel 300 through the injection port 136 and the connecting through hole 113, allowing the physiological saline or other liquids to flow to the affected area for electrocoagulation hemostasis. Moreover, the injection port 136 and the conductive port 131 are located on the same side of the outer blade housing 130. This ensures that the tubing connected to the injection port 136 and the wire connected to the conductive port 131 are on the same side, preventing obstruction of the field of vision and facilitating surgical operations.

[0051] like Figure 5 As shown, optionally, the bipolar radio frequency planing tool 10 also includes a dynamic sealing element 500. The dynamic sealing element 500 is disposed between the inner tool tube 200 and the outer tool housing 130, and the dynamic sealing element 500 is located on the side away from the second planing port 220 relative to the liquid injection port 136. Thus, the dynamic sealing element 500 seals the side of the liquid injection channel 300 away from the first planing port 112, preventing leakage or overflow of liquids such as saline solution. Furthermore, the dynamic sealing element 500 does not affect the rotation of the inner tool tube 200 relative to the outer tool tube 110.

[0052] The dynamic sealing element 500 can be in the form of a sealing sleeve or a sealing ring.

[0053] like Figure 5 As shown, in one embodiment, an inner blade housing 230 is fitted onto the end of the inner blade tube 200 away from the second planing opening 220. Furthermore, the bipolar radio frequency planing tool 10 also includes a static sealing element 600. The static sealing element 600 is disposed between the inner blade tube 200 and the inner blade housing 230. Thus, when the inner blade housing 230 is connected to the power handle, the static sealing element 600 prevents backflow or leakage of the liquid extracted from the suction channel, ensuring the reliability of the sampling.

[0054] The static sealing element 600 can be in the form of a sealing sleeve or a sealing ring.

[0055] like Figure 3As shown, in one embodiment, the inner side wall of the outer cutter shell 130 is provided with a third limiting portion 137. Wherein, the end of the electrode tube 120 away from the first shaving opening 112 is in limiting cooperation with the third limiting portion 137, and the third limiting portion 137 is located between the first insertion opening 132 and the second insertion opening 133 along the axial direction of the outer cutter tube 110. In this way, when the end of the electrode tube 120 away from the first shaving opening 112 is inserted into the outer cutter shell 130 and in limiting cooperation with the third limiting portion 137, it can be known that the end of the electrode tube 120 away from the first shaving opening 112 is located between the first insertion opening 132 and the second insertion opening 133, so that the conductive plug 400 can be electrically connected with the electrode tube 120 through the first insertion opening 132. Moreover, the third limiting portion 137 can also limit and constrain the installation position of the electrode tube 120 relative to the outer cutter shell 130, so as to ensure the assembly accuracy.

[0056] Wherein, the third limiting portion 137 can be a limiting step, a limiting protrusion or other limiting structure.

[0057] It should be noted that "certain body" and "certain portion" can be a part of the "member", that is, "certain body" and "certain portion" are integrally manufactured with other parts of the "member"; or it can be a separate member that can be separated from other parts of the "member", that is, "certain body" and "certain portion" can be independently manufactured, and then combined with other parts of the "member" to form a whole. The expression of the above "certain body" and "certain portion" in the present application is only one embodiment, for the convenience of reading, and is not a limitation on the protection scope of the present application. As long as the above-mentioned features are included and the same effect is achieved, it should be understood as the equivalent technical solution of the present application.

[0058] It should be noted that the components included in the "unit", "component", "mechanism", "device" of the present application can also be flexibly combined, that is, modular production can be carried out according to actual needs to facilitate modular assembly. The division of the above components in the present application is only one embodiment, for the convenience of reading, and is not a limitation on the protection scope of the present application. As long as the above-mentioned components are included and the same effect is achieved, it should be understood as the equivalent technical solution of the present application.

[0059] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. The term "and / or" used in the utility model includes any and all combinations of one or more related listed items.

[0060] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0061] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0062] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0063] It should be noted that when an element is referred to as being "fixed", "set up", "secured" or "attached" to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. Further, when an element is referred to as being "fixedly connected" to another element, the two elements can be fixedly connected in a manner that can allow for relative movement between the two elements, or the two elements can be fixedly connected in a manner that does not allow for relative movement between the two elements, such as by a set or fixed connection, such as a sleeve connection, a snap fit, an integral formation, a weld, etc., as can be appreciated by one of ordinary skill in the art. When an element is referred to as being "perpendicular" or "approximately perpendicular" to another element, it is intended to mean that the two elements are ideally perpendicular, but that some degree of perpendicularity error can exist due to manufacturing and assembly tolerances. The terms "perpendicular", "horizontal", "left", "right", and similar terms are used herein solely for the purpose of illustration and are not intended to be the only implementation. The term "and / or", as used herein, includes any and all combinations of one or more of the associated listed items.

[0064] It should also be understood that, in interpreting the connection relationship or position relationship of elements, although not explicitly described, the connection relationship and position relationship are interpreted to include an error range that should be within an acceptable deviation range of a specific value determined by a person skilled in the art. For example, "about", "approximately", or "substantially" can mean within one or more standard deviations, without limitation.

[0065] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0066] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A bipolar radio frequency ablation tool, characterized in that, The bipolar radio frequency planing tool comprises: an outer cutter assembly comprising an outer cutter tube, an electrode tube and an outer cutter shell, the outer cutter tube is provided with an axially extending insertion channel and a first planing opening, the first planing opening is located at the front end of the outer cutter tube and communicates with the insertion channel, the electrode tube is sleeved on the partial outer circumferential side of the outer cutter tube and gap-fitted with the outer cutter tube to form an isolation channel, the outer cutter shell is sleeved on the partial outer side wall of the electrode tube, the outer cutter shell is provided with a conductive interface adapted to a conductive plug, a first insertion opening communicating with the conductive interface and a second insertion opening communicating with the conductive interface, the first insertion opening extends to the electrode tube to make the electrode tube conductive to form one pole, and the second insertion opening extends to the outer cutter tube to make the outer cutter tube conductive to form another pole; and an inner cutter tube, the inner cutter tube is partially inserted into the insertion channel and can rotate circumferentially, the inner cutter tube is provided with an axially extending suction channel and a second planing opening, the second planing opening is located at the front end of the inner cutter tube and communicates with the suction channel, and the second planing opening can correspondingly communicate with the first planing opening.

2. A bipolar RF ablation tool according to claim 1, characterized in that, The outer cutter assembly further comprises an isolation sleeve, the isolation sleeve is located in the isolation channel, the isolation sleeve is sleeved on the partial outer side wall of the outer cutter tube, and the electrode tube is sleeved on the partial outer side wall of the isolation sleeve.

3. A bipolar RF ablation tool according to claim 2, wherein, The inner side wall of the outer cutter shell is provided with a first limiting portion, one end of the isolation sleeve away from the first planing opening is limited and matched with the first limiting portion, and the first limiting portion is located between the first insertion opening and the second insertion opening along the axial direction of the outer cutter tube.

4. The bipolar RF ablation tool according to claim 1, wherein The outer cutter assembly further comprises an insulating sleeve, the insulating sleeve is sleeved on the partial outer side wall of the electrode tube, and one end of the electrode tube close to the first planing opening is partially located outside the insulating sleeve, and the outer cutter shell is sleeved on the partial outer side wall of the insulating sleeve.

5. A bipolar RF ablation tool according to claim 4, wherein, The inner side wall of the outer cutter shell is provided with a second limiting portion, one end of the insulating sleeve away from the first planing opening is limited and matched with the second limiting portion, and the second limiting portion is arranged close to the first planing opening relative to the first insertion opening.

6. A bipolar RF ablation tool according to any one of claims 1 to 5, characterized in that, The inner cutter tube and the outer cutter tube gap-fitted to form a liquid injection channel, the outer cutter shell is provided with a liquid injection interface, the outer cutter tube is provided with a connecting through hole communicating the liquid injection interface and the liquid injection channel, and the liquid injection interface and the conductive interface are located on the same side of the outer cutter shell.

7. A bipolar RF ablation tool according to claim 6, wherein, The bipolar radio frequency planing tool further comprises a dynamic sealing element, the dynamic sealing element is arranged between the inner cutter tube and the outer cutter shell, and the dynamic sealing element is located on the side away from the second planing opening relative to the liquid injection interface.

8. A bipolar RF ablation tool according to any one of claims 1 to 5, characterized in that One end of the inner cutter tube away from the second planing opening is sleeved with an inner cutter shell, and the bipolar radio frequency planing tool further comprises a static sealing element, the static sealing element is arranged between the inner cutter tube and the inner cutter shell.

9. A bipolar RF ablation tool according to any one of claims 1 to 5, characterized in that The inner side wall of the outer cutter shell is provided with a third limiting portion, one end of the electrode tube away from the first planing opening is limited and matched with the third limiting portion, and the third limiting portion is located between the first insertion opening and the second insertion opening along the axial direction of the outer cutter tube.

10. A planing device, characterized in that The bipolar radio frequency shaving cutter as claimed in any one of claims 1 to 9, a power handle, a main machine and the bipolar radio frequency shaving cutter are electrically connected, and the power handle is in transmission connection with the inner cutter tube to drive the inner cutter tube to rotate circumferentially.

Images