Electrosurgical biopsy needle, electrosurgical biopsy needle kit, and vacuum assisted breast biopsy system

Abstract

The application discloses an electric cutting biopsy needle, an electric cutting biopsy needle kit and a vacuum-assisted breast biopsy system. The electric cutting biopsy needle comprises a puncture tube assembly, the puncture tube assembly comprising a puncture tube, the puncture tube having a front end and a rear end, and a sampling groove being formed in the tube wall of the puncture tube; a cutting assembly, the cutting assembly comprising a cutting piece, the cutting piece being capable of reciprocating along the axial direction of the puncture tube; the cutting assembly having a first electrode and a second electrode; and a first interface and a second interface, the first interface and the second interface being electrically connected with the first electrode and the second electrode respectively, any one of the first interface and the second interface being used for directly or indirectly connecting a high-frequency output end of a host computer, and the other one being used for directly or indirectly connecting a high-frequency input end of the host computer. The electric cutting biopsy needle with the above structure cuts tissues by using radio waves between the first blade edge and the second blade edge, and has the advantages of high safety, convenient operation, simple structure and low cost.

Description

[0001] The present application is a divisional application of “Electrotome biopsy needle, electrotome biopsy needle kit and vacuum-assisted breast biopsy system” (Filing date: May 11, 2021, Application number: 202110511553.3). TECHNICAL FIELD

[0002] The present application relates to the technical field of medical devices, in particular to an electrotome biopsy needle, an electrotome biopsy needle kit and a vacuum-assisted breast biopsy system. BACKGROUND

[0003] The vacuum-assisted breast biopsy system is a kind of minimally invasive treatment or biopsy medical device for breast lumps (tumors). The vacuum-assisted breast biopsy system mainly consists of a main machine, a biopsy surgical device and a vacuum negative pressure system. The system mainly guides the biopsy needle of the biopsy surgical device to the operation point position under the guidance of an imaging device (such as B-ultrasound), and then controls the biopsy needle to partially or completely rotate and cut the lesion tissue through mechanical movement, and finally transports the cut tissue specimen to the outside through negative pressure, and then processes and analyzes the pathological detection and diagnosis.

[0004] At present, the rotating cutter head of the biopsy surgical device has poor durability for calcified lesions, and bleeding may occur during the rotating and cutting process. The rotating and cutting tissue cavity needs to be pressed for a long time to stop bleeding, and there is a possibility of hematoma during recovery. In order to solve this problem, the prior art has appeared an electrotome biopsy surgical device, which changes the cutting edge part of the cutting member into a surgical electrode. High-frequency current passes through the cutting edge of the cutting knife tube and is conducted to the lesion tissue to be cut. The tissue is cut and bled at the same time. However, the electrotome biopsy surgical device still needs to contact a large-area metal plate with the patient's buttocks or thighs as a neutral electrode during the operation. The current flows through the human body and then flows back to the main machine from the neutral electrode to form a loop. If the neutral electrode does not contact the skin well, high energy will be generated locally, which is more likely to cause burns, and the safety is poor. Moreover, the metal plate is large in size and heavy in weight, which is not convenient to operate. SUMMARY

[0005] In view of the above prior art status, the technical problems to be solved by the present application are to provide an electrotome biopsy needle with high safety and simple operation. Another technical problem to be solved by the present application is to provide an electrotome biopsy needle kit with the above electrotome biopsy needle and a vacuum-assisted breast biopsy system with the above electrotome biopsy needle kit.

[0006] Another technical problem to be solved by the present application is to provide an electric knife biopsy surgical device, comprising: a puncture tube assembly comprising a puncture tube having a front end and a rear end, and a sampling groove formed in the tube wall of the puncture tube; a cutting assembly comprising a cutting element, the cutting element being reciprocally movable forward and backward along the axial direction of the puncture tube; the cutting assembly having a first electrode and a second electrode; further comprising a first interface and a second interface, the first interface and the second interface being electrically connected with the first electrode and the second electrode respectively, any one of the first interface and the second interface being used for directly or indirectly connecting a high-frequency output end of a host computer, and the other being used for directly or indirectly connecting a high-frequency input end of the host computer.

[0007] Compared with the conventional rotary cutting electric biopsy needle, the electric biopsy needle of the present application can more effectively crush calcified lesions, and can play a function of wound coagulation due to the influence of thermal effect, effectively avoiding the risk of intraoperative bleeding and postoperative hematoma. Compared with the existing electric biopsy needle, the electric biopsy needle of the present application simultaneously integrates an emitter and a receiver on the cutting element, uses radio waves between the first blade and the second blade for cutting, so that the action range of high-frequency electric energy is limited to between the two electrodes, and the damage degree and influence range of the body tissue are much smaller than those of the monopolar mode, and no additional metal plate is needed during work, which can avoid burning the human body due to poor adhesion of the metal plate to the human skin, has high safety, and is convenient to operate. In addition, the electric biopsy needle has simple structure and low cost.

[0008] In one embodiment, the cutting element comprises a cutting element body and a cutting blade arranged on the front end of the cutting element body; the cutting element body is insulated, and the cutting blade comprises at least one conductive first blade and at least one conductive second blade, the first blade and the second blade are insulated from each other to form the first electrode and the second electrode respectively.

[0009] In one embodiment, the first blade and the second blade are arranged opposite to each other on the front side of the front end, and the first blade and the second blade are arc-shaped and extend along the circumference of the front end.

[0010] In one embodiment, the front end of the first blade is flush with the front end of the second blade.

[0011] In one embodiment, a gap is left between the first blade and the second blade, or the first blade and the second blade are provided with insulating materials.

[0012] In one embodiment, the front port is fixed with a first tile-shaped metal sheet and a second tile-shaped metal sheet, the first blade edge is formed at one end of the first metal sheet close to the front end, the second blade edge is formed at one end of the second metal sheet close to the front end, and the first metal sheet and the second metal sheet are electrically connected with the first interface and the second interface respectively.

[0013] In one embodiment, the first blade edge and the second blade edge are formed by bending a metal wire.

[0014] In one embodiment, the first blade edge and the second blade edge are directly fixed on the end face of the front port.

[0015] In one embodiment, the first blade edge and the second blade edge are multiple, and the multiple first blade edges and the multiple second blade edges are alternately distributed along the front port of the cutting member body.

[0016] In one embodiment, the cutting member body is made of an insulating material, and a first connecting wire and a second connecting wire are arranged in the pipe wall of the cutting member body, one end of the first connecting wire is electrically connected with the first blade edge, and the other end is electrically connected with the first interface, one end of the second connecting wire is electrically connected with the second blade edge, and the other end is electrically connected with the second interface.

[0017] In one embodiment, the cutting member body is composed of two metal pipe bodies with semicircular cross sections, the pipe body surfaces are covered with an insulating layer, and the two pipe bodies are insulated from each other, one pipe body is electrically connected with the first blade edge and the first interface, and the other pipe body is electrically connected with the second blade edge and the second interface.

[0018] In one embodiment, the puncture assembly further comprises a tubular shell, the rear end of the puncture tube is fixedly inserted into the front end of the shell, the rear end of the cutting member extends out of the puncture tube and extends into the shell, a push rod is fixedly sleeved on the cutting member extending into the shell, a first gear is threadedly connected on the push rod, and a rotation limiting mechanism for limiting the rotation of the cutting member relative to the puncture tube is further included.

[0019] The electric cutting biopsy needle kit provided by the application comprises a handle, the handle comprises a shell and a circuit board arranged in the shell, and further comprises the electric knife biopsy surgical device, the handle further comprises a third interface and a fourth interface matched with the first interface and the second interface respectively, the third interface and the fourth interface are electrically connected with the circuit board, the electric cutting biopsy needle is connected with the shell, and the first interface and the second interface are electrically connected with the third interface and the fourth interface respectively.

[0020] The application provides an electric cutting biopsy needle kit, which comprises a handle, the handle comprises a shell, and the electric cutting biopsy needle kit further comprises an electric cutting biopsy surgical device.

[0021] The application provides a vacuum-assisted breast biopsy system, which comprises the electric cutting biopsy needle kit and a main machine.

[0022] The beneficial effects of the additional technical features of the application will be described in the specific embodiment part of the specification. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A sectional view of the electric cutting biopsy needle kit in the first embodiment of the application;

[0024] Figure 2 A sectional view of the electric cutting biopsy needle kit in the first embodiment of the application; Figure 1

[0025] Figure 3 A sectional view of the electric cutting biopsy needle kit in the first embodiment of the application; Figure 1

[0026] Figure 4 A sectional view of the electric cutting biopsy needle kit in the first embodiment of the application; Figure 1

[0027] Figure 5 A sectional view of the electric cutting biopsy needle kit in the first embodiment of the application; Figure 4

[0028] Figure 6 A sectional view of the electric cutting biopsy needle kit in the first embodiment of the application; Figure 1

[0029] Figure 7 A sectional view of the electric cutting biopsy needle kit in the first embodiment of the application; Figure 1

[0030] Figure 8 A sectional view of the electric cutting biopsy needle kit in the first embodiment of the application; Figure 1

[0031] Figure 9 A sectional view of the electric cutting biopsy needle kit in the second embodiment of the application;

[0032] Figure 10 ​​​​​​​For having Figure 9 The diagram shows a vacuum-assisted breast biopsy system with an electrosurgical biopsy needle kit.

[0033] Explanation of reference numerals in the attached drawings: 100, electrosurgical biopsy needle; 110, puncture assembly; 112, puncture tube; 112a, sampling groove; 112b, tip; 114, outer shell; 120, cutting assembly; 122, cutting component; 122a, cutting component body; 122c, vent; 122d, front port; 122e, support leg; 124, push rod; 124a, external thread; 124b, limiting groove; 126, first metal plate; 126a, first cutting edge; 128, second metal plate. ; 128a, Second cutting edge; 130, First gear; 131, Threaded hole; 140, Bushing; 142, Limiting protrusion; 150, Collection box; 162, First interface; 164, Second interface; 200, Handle; 210, Housing; 212, Slot; 214, Motor; 216, Second gear; 217, Third interface; 218, Fourth interface; 300, Main unit; 410, First cable; 420, Second cable; 430, Third cable; 500, Vacuum tube. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] Figure 1 This is a cross-sectional view of the electrosurgical biopsy needle kit in Embodiment 1 of the present invention. Figure 2 for Figure 1 The diagram shows an exploded view of the electrosurgical biopsy needle kit. Figure 1 , 2 As shown, the electrosurgical biopsy needle kit in Embodiment 1 of the present invention includes an electrosurgical biopsy needle 100 and a handle 200, wherein the electrosurgical biopsy needle 100 is mainly composed of a puncture component 110 and a cutting component 120.

[0036] like Figure 3 As shown, the puncture assembly 110 includes a puncture tube 112 and a housing 114. The puncture tube 112 has a front end away from the housing 114 and a rear end near the housing 114. The front end of the puncture tube 112 is provided with a tip 112b, which punctures tissue with the assistance of ultrasound or X-ray imaging equipment. A sampling groove 112a is provided on the tube wall near the front end of the puncture tube 112. The rear end of the puncture tube 112 extends into and is fixed inside the housing 114.

[0037] like Figure 4 , 5As shown, the cutting assembly 120 includes a cutting element 122, which is installed inside the puncture tube 112 and can move back and forth along the axial direction of the puncture tube 112. The cutting element 122 includes an insulated cutting element body 122a, which is tubular, sheet-like, or rod-like. The cutting element 122 also includes a first cutting edge 126a and a second cutting edge 128a disposed on the front port 122d of the cutting element body 122a. The first cutting edge 126a and the second cutting edge 128a are made of conductive material to form a first electrode and a second electrode. The first cutting edge 126a and the second cutting edge 128a are insulated from each other. The electrosurgical biopsy needle 100 also includes a first interface 162 and a second interface 164. The first interface 162 and the second interface 164 are electrically connected to a first cutting edge 126a and a second cutting edge 128a, respectively. Either interface 162 or 164 is used to directly or indirectly connect to the high-frequency output terminal of the host 300, and the other interface is used to directly or indirectly connect to the high-frequency input terminal of the host 300. If the first interface 162 is connected to the high-frequency output terminal and the second interface 164 is connected to the high-frequency input terminal, then the first cutting edge 126a forms the emitter and the second cutting edge 128a forms the receiver. Conversely, if the first interface 162 is connected to the high-frequency input terminal and the second interface 164 is connected to the high-frequency output terminal, then the first cutting edge 126a forms the receiver and the second cutting edge 128a forms the emitter. The first cutting edge 126a, the second cutting edge 128a, the first interface 162, and the second interface 164 form a circuit to conduct high-frequency energy.

[0038] like Figure 6 As shown, when a high-frequency wave is input from the first interface 162 or the second interface 164, a high-frequency radio wave is generated between the first cutting edge 126a and the second cutting edge 128a. When the high-frequency radio wave passes through the tissue in the sampling groove 112a, the resistance of the tissue to the radio wave causes the water molecules inside the tissue to oscillate rapidly and instantaneously. The water molecules inside the cells evaporate, thereby destroying the cells or causing the cells to volatilize. When the high-frequency radio wave encounters the water molecules inside the cells, the resistance of the water molecules to the radio wave causes the radio wave energy to be converted into mechanical energy, causing the water molecules to oscillate violently and instantaneously. The water molecules inside the cells instantly transform from liquid water to gaseous water. The cells rupture under the expansion of the water molecule volume, forming tissue separation and achieving cutting; and by utilizing its thermal effect, the local cells of the soft tissue coagulate and denature proteins, achieving effective hemostasis.

[0039] Compared with the conventional rotary cutting electrobiopsy needle, the electrobiopsy needle 100 can more effectively crush calcified lesions and can play a function of wound coagulation due to the influence of heat effect, effectively avoiding the risk of intraoperative bleeding and postoperative hematoma. Compared with the existing electrobiopsy needle, the electrobiopsy needle 100 of the present application simultaneously integrates the emitter and the receiver on the cutting member, uses the radio wave between the first blade edge 126a and the second blade edge 128a for cutting, and does not need to additionally increase the metal plate during operation, so as to avoid burning the human body due to the poor adhesion of the metal plate to the human skin, has high safety, and is convenient to operate. In addition, the product has simple structure and low cost.

[0040] Further referring to Figure 5 In the embodiment, the first blade edge 126a and the second blade edge 128a are oppositely arranged on the front side of the front port 122d, and the first blade edge 126a and the second blade edge 128a are arc-shaped and extend along the periphery of the front port 122d, so that the first blade edge 126a and the second blade edge 128a enclose an approximately circular shape, the length of the cutting blade edge is longer, and the cutting efficiency is high. Moreover, when the cutting member 122 moves from the rear to the front along the axial direction of the cutting member 122, the tissue cut by the first blade edge 126a and the second blade edge 128a directly enters the front port 122d, and then is collected into the vacuum suction collection box 150. Preferably, the front end of the first blade edge 126a is flush with the front end of the second blade edge 128a, a gap is left between the first blade edge 126a and the second blade edge 128a to insulate the first blade edge 126a from the second blade edge 128a, or the first blade edge 126a and the second blade edge 128a are provided with insulating materials (such as ceramic, plastic, etc.) to insulate the first blade edge 126a from the second blade edge 128a. In the embodiment, the front port 122d is fixedly provided with a first metal sheet 126 in the shape of a tile and a second metal sheet 128 in the shape of a tile, the first blade edge 126a is formed on one end of the first metal sheet 126 close to the front end, the second blade edge 128a is formed on one end of the second metal sheet 128 close to the front end, and the first metal sheet 126 and the second metal sheet 128 are respectively electrically connected with the first interface 162 and the second interface 164. The first blade edge 126a and the second blade edge 128a of this structure have high strength and can also play a mechanical cutting role.

[0041] In another embodiment, the first blade edge 126a and the second blade edge 128a are a plurality of, and the plurality of first blade edges 126a and the plurality of second blade edges 128a are alternately distributed along the front port 122d of the cutting member body 122a, so that the distribution of high-frequency energy is more uniform, and the cutting is more smooth.

[0042] Alternatively, the first blade 126a and the second blade 128a can be formed by bending a metal wire (such as a stainless steel wire, a tungsten wire, etc.), and the first blade 126a and the second blade 128a are directly fixed on the end face of the front port 122d. The first blade 126a and the second blade 128a of this structure are simpler in structure.

[0043] In this embodiment, the cutting member body 122a is made of an insulating material (ceramic material, hard plastic), the first metal sheet 126 and the second metal sheet 128 are fixed on the end face of the front port 122d, and the first connecting wire (not shown in the figure) and the second connecting wire (not shown in the figure) are arranged in the pipe wall of the cutting member body 122a. One end of the first connecting wire is electrically connected to the first metal sheet 126, and the other end is electrically connected to the first interface 162. One end of the second connecting wire is electrically connected to the second metal sheet 128, and the other end is electrically connected to the second interface 164. Alternatively, the cutting member body 122a is composed of two metal (such as stainless steel) pipes (not shown in the figure) with semicircular cross sections, the surfaces of the pipes are covered with an insulating layer, the two metal pipes are insulated from each other, one of the pipes is electrically connected to the first blade and the first interface, and the other pipe is electrically connected to the second blade and the second interface. Preferably, the first blade 126a and the second blade 128a are welded to the front end of the pipe.

[0044] In order to facilitate the cut-off tissue to enter the cutting member 122, at least one air vent 122c is arranged on the peripheral wall of the front port 122d of the cutting member body 122a.

[0045] As shown in Figure 1 , 2 The first interface 162 includes a first pin, and the second interface 164 includes a second pin. The first pin and the second pin are respectively electrically connected to the first connecting wire and the second connecting wire in the pipe wall of the cutting member body 122a through wires. The outer ends of the first pin and the second pin are exposed outside the shell 114.

[0046] As shown in Figure 1 , 4As shown in FIGS. 7 and 8, the electrotome biopsy needle 100 in the embodiment further comprises a transmission mechanism for converting the rotary torque into linear motion of the cutting member 122. As an example, the transmission mechanism comprises a push rod 124, a first gear 130, and a rotation-stopping mechanism. The push rod 124 is fixedly sleeved on the cutting member 122 extending into the housing 114, and an external thread 124a is arranged on the push rod 124. The first gear 130 is provided with a threaded hole 131 at the center, and the internal thread of the threaded hole 131 is matched with the external thread 124a on the push rod 124. The rotation-stopping mechanism is used to limit the rotation of the cutting member 122 relative to the puncture tube 112. When the first gear 130 rotates, the push rod 124 moves axially along the axis of the first gear 130, converting the rotary motion into linear motion, and realizing the forward and backward movement of the cutting assembly 120. As shown in the figure, at least one axial limiting groove 124b is arranged on one end of the push rod 124 close to the front end side of the puncture tube 112. An axle sleeve 140 is fixed in the housing 114, and the axle sleeve 140 is sleeved on the push rod 124. An axial limiting protrusion 142 is arranged on the inner wall of the axle sleeve 140, and the limiting protrusion 142 and the limiting groove 124b form the rotation-stopping mechanism, limiting the rotation of the cutting member 122 relative to the puncture tube 112.

[0047] The electrotome biopsy needle 100 in the embodiment further comprises a collection box 150, and the inlet of the collection box 150 is connected with the rear end of the cutting member 122. The cut-off tissue enters the collection box 150 through the cutting member 122.

[0048] An air passage is formed between the outer wall of the cutting member 122 and the inner wall of the puncture tube 112 for gas circulation. The electrotome biopsy needle 100 further comprises an air valve mechanism for connecting or not connecting the rear end opening of the air passage with the external atmosphere. The air valve mechanism in the embodiment can be the air valve mechanism disclosed in the Chinese patent CN209285578U.

[0049] As shown in FIG. 8, the air valve mechanism comprises a valve body 160, a valve rod 162, and a valve spring 164. The valve body 160 is fixedly arranged in the housing 114, and the valve rod 162 is arranged in the valve body 160. The valve spring 164 is arranged between the valve body 160 and the valve rod 162, and the valve spring 164 is in contact with the valve rod 162. The valve rod 162 is provided with a through hole 162a, and the valve body 160 is provided with a through hole 160a. The through hole 162a of the valve rod 162 and the through hole 160a of the valve body 160 are coaxial with each other, and the valve rod 162 is arranged in the through hole 160a of the valve body 160. The valve rod 162 is provided with a limiting groove 162b, and the valve body 160 is provided with a limiting protrusion 160b. The limiting groove 162b and the limiting protrusion 160b form a rotation-stopping mechanism, limiting the rotation of the valve rod 162 relative to the valve body 160. Figure 1 、 2As shown, the handle 200 includes a housing 210, a driving device, a circuit board (not shown in the figure), a first cable 410, a third interface 217 and a fourth interface 218, the housing 210 is provided with a clamping groove 212 for accommodating the outer shell 114 of the biopsy needle, the driving device is accommodated in the housing 210, the driving device includes a motor 214 and a second gear 216, the second gear 216 is installed on the output shaft of the motor 214, and the second gear 216 is partially exposed from the housing 210 and is engaged with the first gear 130 of the electrocuting biopsy needle 100. The circuit board is connected with the motor 214, the first cable 410, the third interface 217 and the fourth interface 218. The first output interface in the embodiment is a first jack matched with a first pin, and the second output interface is a second jack matched with a second pin. When the electrocuting biopsy needle 100 is installed in the clamping groove 212, the first pin and the second pin are respectively inserted into the first jack and the second jack.

[0050] Figure 8 A schematic structural view of a vacuum-assisted breast biopsy system with the electrocuting biopsy needle set in the above embodiment. As shown, the vacuum-assisted breast biopsy system of the present application includes the electrocuting biopsy needle set in the above embodiment and a main machine 300, the main machine 300 is provided with a high-frequency transmitting module (not shown in the figure) and a vacuum generating system (not shown in the figure), the high-frequency output end and the high-frequency input end of the high-frequency transmitting module are connected with the circuit board in the handle 200 through the first cable 410, and the circuit board is electrically connected with the first jack and the second jack, so that the high-frequency output end and the high-frequency input end of the high-frequency transmitting module are indirectly connected with the first pin and the second pin. The air passage is formed between the air passage between the air vent 122c, the cutting member 122 and the puncture tube 112 and the inside of the cutting member 122, so as to avoid the formation of the blockage at the front end of the cutting member 122.

[0051] The working process of the vacuum-assisted breast biopsy system in the embodiment of the present application is as follows:

[0052] The user first punctures the front end of the puncture tube 112 to the operation point position under the guidance of the ultrasonic equipment, at this time, the front end port 122d of the cutting member is located at the position closest to the front end of the puncture tube, the sampling groove is in the closed state, a control signal is sent through the control button on the handle 200 to open the negative pressure, the circuit board controls the motor 214 to start working, the cutting member 122 of the electrocuting biopsy needle 100 is driven to move backward through the cooperation of the second gear 216 and the first gear 130, the sampling groove is opened to the required size, when the cutting member 122 moves backward, the air valve is closed, the vacuum passage is connected by the cutting member 122, the collection box 150, the vacuum tube 500 and the vacuum connector of the electrocuting biopsy needle 100, and the tissue sample is sucked into the sampling groove;

[0053] The control signal is sent by the handle button to start sampling, or the software automatically controls the start of sampling. The cutting member 122 of the electric biopsy needle 100 is driven forward by the second gear 216 cooperating with the first gear 130 to drive the first blade 126a and the second blade 128a forward. At the same time, the host 300 outputs high-frequency electric waves. The high-frequency electric waves are transmitted to the first blade 126a or the second blade 128a through the first cable 410, the circuit board, the first jack, and the first pin. High-frequency radio waves are generated between the first blade 126a and the second blade 128a. The lesion tissue is partially or completely removed by the radio waves. When the cutting member 122 advances to the position closest to the front end of the puncture tube, the air valve mechanism is opened. The external atmosphere enters the front port 122d of the cutting member 122 through the air passage between the cutting member 122 and the puncture tube 112, while the inside of the cutting member 122 is in a vacuum state. Thus, under the pressure difference between the inside and the outside, the cut tissue specimen enters the cutting member 122 through the air port 122c, and then is transported into the collection box 150 for processing and pathological detection analysis and diagnosis. On the one hand, the lesion tissue specimen can be removed minimally invasively, and accurate pathological diagnosis can be made. On the other hand, the lesion can be removed by minimally invasive surgery.

[0054] Figure 9 The embodiment two of the electric biopsy needle set is a three-dimensional structure schematic diagram, Figure 10 The embodiment two of the electric biopsy needle set is a three-dimensional structure schematic diagram, Figure 9 The vacuum-assisted breast biopsy system of the electric biopsy needle set shown in the embodiment two is a structure schematic diagram. As shown in the figure, the electric biopsy needle set in the embodiment is generally the same as the structure of the electric biopsy needle set in the embodiment. The difference is that the high-frequency circuit of the electric biopsy needle 100 is directly connected with the host 300. That is, the first pin and the second pin on the puncture assembly 110 are arranged on the side opposite to the handle 200. The host 300 is connected with the circuit board of the handle 200 through the second cable 420, and is electrically connected with the first pin and the second pin through the third cable 430.

[0055] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. An electric knife biopsy surgical device, comprising: a puncture tube assembly comprising a puncture tube having a front end and a rear end, and a sampling groove being formed on a tube wall of the puncture tube; a cutting assembly comprising a cutting member, the cutting member being reciprocally movable along an axial direction of the puncture tube; characterized in that the cutting member is arranged in the puncture tube, the cutting assembly has a first electrode and a second electrode, the first electrode and the second electrode are located at a front end of the cutting member; the cutting member comprises a cutting member body and a cutting edge arranged on a front end of the cutting member body; the cutting member body is insulated, the cutting edge comprises at least one conductive first edge and at least one conductive second edge, the first edge and the second edge are insulated from each other to form the first electrode and the second electrode respectively; further comprising a first interface and a second interface, the first interface and the second interface are electrically connected with the first electrode and the second electrode respectively, any one of the first interface and the second interface is used for directly or indirectly connecting a high-frequency output end of a host, and the other one is used for directly or indirectly connecting a high-frequency input end of the host; the first edge and the second edge are a plurality of, and the plurality of first edges and the plurality of second edges are alternately distributed along the front end of the cutting member body; the first edge and the second edge are oppositely arranged on a front side of the front end, and the first edge and the second edge are arc-shaped and extend along a periphery of the front end.

2. The electrosurgical biopsy procedure device of claim 1, wherein, a front end of the first edge is flush with a front end of the second edge.

3. The electrosurgical biopsy procedure device of claim 1, wherein, a gap is left between the first edge and the second edge, or the first edge and the second edge are provided with an insulating material.

4. The electrosurgical biopsy procedure device of claim 1, wherein, the first edge and the second edge are formed by bending a metal wire.

5. The electrosurgical biopsy procedure device of claim 4, wherein, the first edge and the second edge are directly fixed on an end face of the front end.

6. The electrosurgical biopsy procedure device of any one of claims 1 to 5, wherein, the cutting member body is made of an insulating material, and a first connecting wire and a second connecting wire are arranged in a tube wall of the cutting member body, one end of the first connecting wire is electrically connected with the first edge, and the other end is electrically connected with the first interface, one end of the second connecting wire is electrically connected with the second edge, and the other end is electrically connected with the second interface.

7. The electrosurgical biopsy procedure device of any one of claims 1 to 5, wherein, the cutting member body is composed of two metal tube bodies with a semicircular cross section, the tube bodies are coated with an insulating layer, and the two tube bodies are insulated from each other, one of the tube bodies is electrically connected with the first edge and the first interface, and the other tube body is electrically connected with the second edge and the second interface.

8. The electrosurgical biopsy procedure device of any one of claims 1 to 5, wherein, the puncture tube assembly further comprises a tubular shell, the rear end of the puncture tube is inserted and fixed in a front end of the shell, the rear end of the cutting member extends out of the puncture tube and extends into the shell, a push rod is fixedly sleeved on the cutting member extending into the shell, a first gear is threadedly connected on the push rod, and a rotation limiting mechanism for limiting rotation of the cutting member relative to the puncture tube is further included.

9. An electrosurgical biopsy needle kit comprising a handle, the handle comprising a housing and a circuit board disposed within the housing, characterized in that, The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the handle further comprises a third interface and a fourth interface that mate with the first interface and the second interface, respectively, and the third interface and the fourth interface are electrically connected to the circuit board, and the electrotome biopsy surgical device is connected to the housing, and the first interface and the second interface are electrically connected to the third interface and the fourth interface, respectively.

10. An electrosurgical biopsy needle kit comprising a handle, the handle comprising a housing and a circuit board disposed within the housing, characterized in that, The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing.

11. A vacuum assisted breast biopsy system characterized by, The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8, wherein the electrotome biopsy surgical device is connected to the housing. The electrotome biopsy surgical device of any one of claims 1 to 8

Images