CN116350279A - Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system - Google Patents
Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system Download PDFInfo
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- CN116350279A CN116350279A CN202310202932.3A CN202310202932A CN116350279A CN 116350279 A CN116350279 A CN 116350279A CN 202310202932 A CN202310202932 A CN 202310202932A CN 116350279 A CN116350279 A CN 116350279A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0041—Detection of breast cancer
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00333—Breast
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1425—Needle
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Abstract
The invention discloses an electrotome biopsy needle, an electrotome biopsy needle kit and a vacuum assisted breast biopsy system, wherein the electrotome biopsy needle comprises: the puncture tube assembly comprises a puncture tube, the puncture tube is provided with a front end and a rear end, and a sampling groove is formed in the tube wall of the puncture tube; a cutting assembly including a cutting member reciprocally movable back and forth along an axial direction of the penetration tube; the cutting assembly has a first electrode and a second electrode; the device also comprises a first interface and a second interface, wherein the first interface and the second interface are respectively and electrically connected with the first electrode and the second electrode, any one of the first interface and the second interface is used for directly or indirectly connecting with a high-frequency output end of a host, and the other interface is used for directly or indirectly connecting with a high-frequency input end of the host. The electro-cutting biopsy needle with the structure cuts tissues by utilizing radio waves between the first cutting edge and the first cutting edge, and has the advantages of high safety, convenience in operation, simple structure and low cost.
Description
The present application is a divisional application of "electrotome biopsy needle, electrotome biopsy needle kit, and vacuum assisted breast biopsy system" (application day: 2021, 5, 11, application number: 202110511553.3).
Technical Field
The invention relates to the technical field of medical instruments, in particular to an electrotome biopsy needle, an electrotome biopsy needle kit and a vacuum assisted breast biopsy system.
Background
A vacuum assisted breast biopsy system is a medical device used for minimally invasive treatment or biopsy of breast tumors. The vacuum assisted breast biopsy system mainly comprises a main machine, a biopsy operation device and a vacuum negative pressure system. The system is mainly characterized in that under the guidance of image equipment (such as B ultrasonic), a biopsy needle of a biopsy surgical device is punctured to an operation point position, then the biopsy needle is subjected to partial or complete rotary cutting in a mechanical movement mode through electric control, and a tissue specimen cut by rotary cutting is finally conveyed to the outside through negative pressure, so that the biopsy needle is used for film making treatment and pathological detection analysis diagnosis.
Currently, the rotary cutting heads of biopsy surgical devices are weak against calcification foci and may cause bleeding during rotary cutting, the post-operative rotary cut tissue cavity requires long-term compression to stop bleeding and hematoma may also occur during recovery. In order to solve this problem, the prior art has developed an electro-cutting biopsy surgical device that changes the cutting edge portion of the cutting member to a surgical electrode, and high-frequency current is passed through the cutting edge of the cutting blade tube and conducted to a lesion tissue to be cut, cutting the tissue while stopping bleeding. However, in the electro-cutting biopsy surgical device, a metal plate with a larger area is in contact with the buttocks or the thighs of a patient to serve as a neutral electrode, and current flows through a human body and then flows back to a host computer from the neutral electrode to form a loop. If the neutral electrode is not well attached to the skin of a human body and is in poor contact, high energy can be locally generated, scalding is easy to occur, and the safety is poor; moreover, the metal plate has large volume, heavy weight and inconvenient operation.
Disclosure of Invention
Aiming at the current state of the art, the invention aims to solve the technical problem of providing the electrotome biopsy needle with high safety and simple operation. Another technical problem to be solved by the present invention is to provide an electro-cutting biopsy needle kit having the above-mentioned electro-cutting biopsy needle and a vacuum assisted breast biopsy system having the above-mentioned electro-cutting biopsy needle kit.
Another technical problem to be solved by the present invention is to provide an electrotome biopsy surgical device, comprising: the puncture tube assembly comprises a puncture tube, the puncture tube is provided with a front end and a rear end, and a sampling groove is formed in the tube wall of the puncture tube; a cutting assembly including a cutting member reciprocally movable back and forth along an axial direction of the penetration tube; the cutting assembly has a first electrode and a second electrode; the high-frequency power supply further comprises a first interface and a second interface, wherein the first interface and the second interface are respectively and electrically connected with the first electrode and the second electrode, any one of the first interface and the second interface is used for being directly or indirectly connected with a high-frequency output end of a host, and the other interface is used for being directly or indirectly connected with a high-frequency input end of the host.
Compared with the traditional rotary cutting type electric cutting biopsy needle, the electric cutting biopsy needle can crush calcification foci more effectively, can play a role in wound coagulation due to the influence of thermal effect, and effectively avoids the risks of postoperative hemorrhage and postoperative hematoma. Compared with the existing electrotome biopsy needle, the electrotome biopsy needle integrates the emitter and the receiver on the cutting piece at the same time, and uses radio waves between the first cutting edge and the second cutting edge to cut, so that the application range of high-frequency electric energy is limited between the two electrodes, the damage degree and the influence range of the high-frequency electric energy on organism tissues are far smaller than those of a monopolar mode, and a metal plate is not required to be additionally added during working, so that the burn of a human body due to poor adhesion of the metal plate and the skin of the human body can be avoided, the safety is high, and the operation is convenient. In addition, the electrotome biopsy needle has simple structure and low cost.
In one embodiment, the cutter comprises a cutter body and a cutting edge disposed on a front port of the cutter body; the cutting member body is insulated, the cutting edge comprises at least one conductive first edge and at least one conductive second edge, and the first edge and the second edge are mutually insulated to form the first electrode and the second electrode respectively.
In one embodiment, the first and second edges are oppositely disposed on a front side of the front port, and the first and second edges are arcuate extending along a circumference of the front port.
In one embodiment, the front end of the first cutting edge is flush with the front end of the second cutting edge.
In one embodiment, a gap is left between the first cutting edge and the second cutting edge or the first cutting edge and the second cutting edge are provided with insulating materials.
In one embodiment, the front port is fixedly provided with a tile-shaped first metal sheet and a tile-shaped second metal sheet, the first cutting edge is formed at one end of the first metal sheet, which is close to the front end, the second cutting edge is formed at one end of the second metal sheet, which is close to the front end, and the first metal sheet and the second metal sheet are respectively electrically connected with the first interface and the second interface.
In one embodiment, the first and second cutting edges are formed by bending a wire.
In one embodiment, the first and second cutting edges are secured directly to the end face of the front port.
In one embodiment, the first and second cutting edges are a plurality, and the first and second cutting edges are alternately distributed along the front port of the cutter body.
In one embodiment, the cutting member body is made of an insulating material, a first connecting wire and a second connecting wire are disposed in a pipe wall of the cutting member body, one end of the first connecting wire is electrically connected with the first cutting edge, the other end of the first connecting wire is electrically connected with the first interface, one end of the second connecting wire is electrically connected with the second cutting edge, and the other two ends of the second connecting wire are electrically connected with the second interface.
In one embodiment, the cutting member body is composed of two metal pipe bodies with semicircular cross sections, the surface of each pipe body is covered with an insulating layer, the two pipe bodies are mutually insulated, one pipe body is electrically connected with the first cutting edge and the first interface, and the other pipe body is electrically connected with the second cutting edge and the second interface.
In one embodiment, the puncture assembly further comprises a tubular housing, the rear end of the puncture tube is inserted and fixed into the front end of the housing, the rear end of the cutting member extends out of the puncture tube and into the housing, a push rod is fixedly sleeved on the cutting member extending into the housing, a first gear is in threaded fit with the push rod, and the puncture assembly further comprises a rotation stopping mechanism for limiting the rotation of the cutting member relative to the puncture tube.
The invention provides an electrotome biopsy needle kit, which comprises a handle, wherein the handle comprises a shell, a circuit board arranged in the shell, and the electrotome biopsy needle, and further comprises a third interface and a fourth interface which are respectively matched with the first interface and the second interface, the third interface and the fourth interface are electrically connected with the circuit board, the electrotome biopsy needle is connected with the shell, and the first interface and the second interface are respectively electrically connected with the third interface and the fourth interface.
The invention provides an electrotome biopsy needle kit which comprises a handle, wherein the handle comprises a shell and the electrotome biopsy needle, and the electrotome biopsy needle is connected with the shell.
The invention provides a vacuum assisted breast biopsy system, comprising: the electrotome biopsy needle kit; and a main body including a high-frequency transmitting module for generating a high frequency, the high-frequency transmitting module having a high-frequency output terminal and the high-frequency input terminal, the high-frequency output terminal and the high-frequency input terminal being connected to the circuit board by a cable so as to be indirectly connected to the first interface and the second interface, or the high-frequency output terminal and the high-frequency input terminal being directly connected to the first interface and the second interface by a cable.
The advantageous effects of the additional technical features of the present invention will be described in the detailed description section of the present specification.
Drawings
FIG. 1 is a cross-sectional view of an electro-cutting biopsy needle kit according to a first embodiment of the present invention;
FIG. 2 is an exploded view of the electro-cutting biopsy needle kit shown in FIG. 1;
FIG. 3 is a schematic perspective view of the penetration assembly of the electro-cutting biopsy needle kit shown in FIG. 1;
FIG. 4 is a schematic perspective view of a cutting assembly of the electro-cutting biopsy needle kit shown in FIG. 1;
FIG. 5 is an enlarged partial schematic view of FIG. 4 at A;
FIG. 6 is an enlarged partial schematic view of FIG. 1 at C;
FIG. 7 is an enlarged partial schematic view at B in FIG. 1;
FIG. 8 is a schematic structural view of a vacuum assisted breast biopsy system having the electro-cutting biopsy needle kit shown in FIG. 1;
FIG. 9 is a schematic perspective view of an electro-cutting biopsy needle set according to a second embodiment of the present invention;
fig. 10 is a schematic structural view of a vacuum assisted breast biopsy system having the electro-cutting biopsy needle kit shown in fig. 9.
Reference numerals illustrate: 100. an electrotomy biopsy needle; 110. a puncture assembly; 112. a puncture tube; 112a, sampling groove; 112b, a tip; 114. a housing; 120. a cutting assembly; 122. a cutting member; 122a, a cutter body; 122c, a vent; 122d, front port; 122e, legs; 124. a push rod; 124a, external threads; 124b, a limit groove; 126. a first metal sheet; 126a, a first cutting edge; 128. a second metal sheet; 128a, a second cutting edge; 130. a first gear; 131. a threaded hole; 140. a shaft sleeve; 142. a limit protrusion; 150. a collection box; 162. a first interface; 164. a second interface; 200. a handle; 210. a housing; 212. a clamping groove; 214. a motor; 216. a second gear; 217. a third interface; 218. a fourth interface; 300. a host; 410. a first cable; 420. a second cable; 430. a third cable; 500. and (5) a vacuum tube.
Detailed Description
The invention will be described in detail below with reference to the drawings in conjunction with embodiments. The following embodiments and features in the embodiments may be combined with each other without collision.
Fig. 1 is a sectional view of an electro-cutting biopsy needle set according to a first embodiment of the present invention, and fig. 2 is an exploded view of the electro-cutting biopsy needle set shown in fig. 1. As shown in fig. 1 and 2, the electro-cutting biopsy needle kit according to the first embodiment of the present invention includes an electro-cutting biopsy needle 100 and a handle 200, wherein the electro-cutting biopsy needle 100 is mainly composed of a penetration assembly 110 and a cutting assembly 120.
As shown in fig. 3, the puncture assembly 110 includes a puncture tube 112 and a housing 114, the puncture tube 112 having a front end distal from the housing 114 and a rear end proximal to the housing 114, the front end of the puncture tube 112 being provided with a tip 112b, the tip 112b puncturing tissue with the aid of an ultrasound imaging or X-ray imaging device. A sampling groove 112a is provided on the pipe wall of the puncture pipe 112 near the front end, and the rear end of the puncture pipe 112 extends into and is fixed in the housing 114.
As shown in fig. 4 and 5, the cutting assembly 120 includes a cutting member 122, the cutting member 122 being mounted in the penetration tube 112 and being movable back and forth in the axial direction of the penetration tube 112, the cutting member 122 including an insulative cutting member body 122a, the cutting member body 122a being tubular, or sheet-like, or slim rod-like, the cutting member 122 further including a first cutting edge 126a and a second cutting edge 128a provided on a front port 122d of the cutting member body 122a, the first cutting edge 126a and the second cutting edge 128a being made of an electrically conductive material to form a first electrode and a second electrode, the first cutting edge 126a and the second cutting edge 128a being insulated from each other. The biopsy needle 100 further includes a first interface 162 and a second interface 164, where the first interface 162 and the second interface 164 are electrically connected to the first cutting edge 126a and the second cutting edge 128a, respectively, and any one of the first interface 162 and the second interface 164 is used to directly or indirectly connect to a high frequency output end of the host 300, and the other interface is used to directly or indirectly connect to a high frequency input end 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, the first cutting edge 126a forms an emitter, and the second cutting edge 128a forms a receiver, whereas 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, the first cutting edge 126a forms a receiver, and the second cutting edge 128a forms an emitter. The first edge 126a, the second edge 128a, the first interface 162, and the second interface 164 form a loop to conduct high frequency energy.
As shown in fig. 6, 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, and when the high-frequency radio wave passes through the tissue in the sampling groove 112a, water molecules in the tissue itself instantaneously oscillate due to resistance of the tissue to the radio wave, and intracellular water molecules evaporate to destroy or volatilize cells. When the high-frequency electric wave encounters moisture in the cell, the resistance of water molecules to the electric wave converts the electric wave energy into mechanical energy, so that the water molecules are instantaneously and violently oscillated, the water molecules in the cell are instantaneously converted into gaseous water from liquid water, and the cell is broken under the condition of volume expansion of the water molecules, so that tissue separation is formed, and cutting is realized; and the thermal effect is utilized to denature the local cell coagulation protein of the soft tissue so as to achieve effective hemostasis.
Compared with the traditional rotary cutting type electric cutting biopsy needle, the electric cutting biopsy needle 100 can break up calcification foci more effectively, can play a role in wound coagulation due to the influence of thermal effect, and effectively avoids the risks of postoperative hemorrhage and postoperative hematoma. Compared with the existing electrocutting biopsy needle, the electrocutting biopsy needle 100 integrates the emitter and the receiver on the cutting piece at the same time, and cuts by utilizing radio waves between the first cutting edge 126a and the second cutting edge 128a, so that a metal plate is not required to be additionally added during working, the burn of a human body due to poor adhesion of the metal plate and the skin of the human body can be avoided, the safety is high, and the operation is convenient. In addition, the product has simple structure and low cost.
With further reference to fig. 5, the first cutting edge 126a and the second cutting edge 128a in the present embodiment are oppositely disposed at the front side of the front port 122d, and the first cutting edge 126a and the second cutting edge 128a are arc-shaped extending along the circumference of the front port 122d, so that the first cutting edge 126a and the second cutting edge 128a enclose an approximately circular shape, and the length of the cutting edge is long and the cutting efficiency is high. Also, when the cutting member 122 moves forward from back to forth in the axial direction of the cutting member 122, the tissue cut by the first and second cutting edges 126a and 128a directly enters the front port 122d and is then sucked into the collection box 150 by vacuum. Preferably, the front end of the first cutting edge 126a is flush with the front end of the second cutting edge 128a, and a gap is left between the first cutting edge 126a and the second cutting edge 128a to insulate the first cutting edge 126a from the second cutting edge 128a, or the first cutting edge 126a and the second cutting edge 128a are provided with insulating material (such as ceramic, plastic, etc.) to insulate the first cutting edge 126a from the second cutting edge 128 a. In this embodiment, the front port 122d is fixedly provided with a tile-shaped first metal sheet 126 and a tile-shaped second metal sheet 128, the first cutting edge 126a is formed at an end of the first metal sheet 126 near the front end, the second cutting edge 128a is formed at an end of the second metal sheet 128 near the front end, and the first metal sheet 126 and the second metal sheet 128 are electrically connected with the first interface 162 and the second interface 164 respectively. The first and second edges 126a, 128a of this construction are strong and also function as mechanical cuts.
In another embodiment, the first cutting edge 126a and the second cutting edge 128a are multiple, and the first cutting edge 126a and the second cutting edge 128a are alternately distributed along the front port 122d of the cutter body 122a, so that the high-frequency energy distribution is more uniform and the cutting is smoother.
Alternatively, the first and second cutting edges 126a and 128a may be formed by bending a metal wire (e.g., stainless steel wire, tungsten wire, etc.), and the first and second cutting edges 126a and 128a may be directly fixed to the end surface of the front port 122d, so that the structure of the first and second cutting edges 126a and 128a is simpler.
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, a first connecting wire (not shown) and a second connecting wire (not shown) are disposed in the tube wall of the cutting member body 122a, one end of the first connecting wire is electrically connected with the first metal sheet 126, the other end of the first connecting wire is electrically connected with the first interface 162, one end of the second connecting wire is electrically connected with the second metal sheet 128, and the other end of the second connecting wire is electrically connected with the second interface 164. Alternatively, the cutting member body is composed of 122a two metal (such as stainless steel) tubes (not shown) with semicircular cross sections, the surfaces of the tubes are covered with insulating layers, the two metal tubes are insulated from each other, one tube is electrically connected with the first cutting edge and the first interface, and the other tube is electrically connected with the second cutting edge and the second interface. Preferably, the first and second cutting edges 126a and 128a are welded to the front end of the pipe body.
To facilitate entry of the severed tissue into the cutter 122, at least one vent 122c is provided in the peripheral wall of the front port 122d of the cutter body 122 a.
As shown in fig. 1 and 2, the first interface 162 in the present embodiment includes a first pin, and the second interface 164 includes a second pin. The first pin and the second pin are electrically connected with a first connection wire and a second connection wire in the pipe wall of the cutter body 122a through wires, respectively. The outer ends of the first pin and the second pin are exposed out of the housing 114.
As shown in fig. 1, 4, and 7, the electro-cutting biopsy needle 100 in this embodiment further comprises a transmission mechanism for converting rotational torque into linear motion of the cutting member 122. By way of example, the transmission mechanism includes a push rod 124, a first gear 130, and a rotation stopping mechanism, wherein the push rod 124 is fixedly sleeved on the cutting member 122 extending into the housing 114, an external thread 124a is provided on the push rod 124, a threaded hole 131 is provided in the center of the first gear 130, an internal thread of the threaded hole 131 cooperates with the external thread 124a on the push rod 124, and the rotation stopping mechanism is used for limiting 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 on the axis of the first gear 130, and the rotary motion is converted into linear motion, so that the cutting assembly 120 moves forward and backward. As shown in the figure, at least one limiting groove 124b extending along the axial direction is arranged at one end of the push rod 124 near the front end side of the puncture tube 112, a shaft sleeve 140 is fixed in the housing 114, the shaft sleeve 140 is sleeved on the push rod 124, a limiting protrusion 142 extending along the axial direction is arranged on the inner wall of the shaft sleeve 140, the limiting protrusion 142 and the limiting groove 124b cooperate to form a rotation stopping mechanism, and the cutting member 122 is limited to rotate relative to the puncture tube 112.
The electro-cutting biopsy needle 100 in this embodiment further comprises a collection cassette 150, the inlet of the collection cassette 150 being connected to the rear end of the cutting member 122, and severed tissue passing through the cutting member 122 into the collection cassette 150.
An air passage through which air flows is formed between the outer wall of the cutting member 122 and the inner wall of the puncture tube 112, and the electro-cutting biopsy needle 100 further includes an air valve mechanism for making the rear end opening of the air passage open or non-open to the outside atmosphere, which in this embodiment may be an air valve mechanism disclosed in chinese patent publication No. CN 209285578U.
As shown in fig. 1 and 2, the handle 200 includes a housing 210, a driving device, a circuit board (not shown), a first cable 410, a third interface 217 and a fourth interface 218, one side of the housing 210 is provided with a clamping groove 212 for accommodating the housing 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 mounted on an output shaft of the motor 214, and the second gear 216 partially exposes the housing 210 to be engaged with the first gear 130 of the biopsy needle 100. The circuit board connects the motor 214, the first cable 410, the third interface 217, and the fourth interface 218. The first output interface in this embodiment is a first jack that mates with the first pin, and the second output interface is a second jack that mates with the second pin. When the biopsy needle 100 is installed in the card slot 212, the first and second pins are inserted into the first and second receptacles, respectively.
Fig. 8 is a schematic structural view of a vacuum assisted breast biopsy system having an electro-cutting biopsy needle kit in the above embodiments. As shown in the drawing, the vacuum assisted breast biopsy system of the present invention comprises the electro-cutting biopsy needle kit and the main body 300 in the above embodiments, a high frequency transmitting module (not shown) and a vacuum generating system (not shown) are provided in the main body 300, and a high frequency output end and a high frequency input end of the high frequency transmitting module are connected with a circuit board in the handle 200 through a first cable 410, and the circuit board is electrically connected with a first jack and a second jack, thereby realizing that the high frequency output end and the high frequency input end of the high frequency transmitting module are indirectly connected with a first pin and a second pin. The vent 122c, the air passage between the cutter 122 and the puncture tube 112, and the interior of the cutter 122 form an air flow path, avoiding the front end of the cutter 122 from being blocked.
The working process of the vacuum assisted breast biopsy system in the embodiment of the invention is as follows:
the user firstly punctures the front end of the puncture tube 112 to the operation point under the guidance of the ultrasonic equipment, at the moment, the front port 122d of the cutting member is positioned at the position closest to the front end of the puncture tube, the sampling groove is in a closed state, a control signal is sent through a control button on the handle 200, the negative pressure is started, the circuit board control motor 214 starts to work, the cutting member 122 of the electric biopsy needle 100 is driven to move backwards through the cooperation of the second gear 216 and the first gear 130, the sampling groove is opened to a required size, when the cutting member 122 moves backwards, the air valve is closed, the vacuum joints of the cutting member 122, the collection box 150, the vacuum tube 500 and the electric biopsy needle 100 are connected to form a vacuum channel, and the tissue specimen is sucked into the sampling groove;
the sampling is started by sending a control signal through a handle button or the software is automatically controlled to start the sampling, the cutting member 122 of the electro-cutting biopsy needle 100 is driven to move forward by the cooperation of the second gear 216 and the first gear 130, the first cutting edge 126a and the second cutting edge 128a are made to move forward, simultaneously the host computer 300 outputs high frequency electric waves, the high frequency electric waves are transmitted to the first cutting edge 126a or the second cutting edge 128a through the first cable 410, the circuit board, the first jack and the first contact pin, high frequency radio waves are generated between the first cutting edge 126a and the second cutting edge 128a, focal tissues are partially or completely cut through the radio waves, the air valve mechanism is opened when the cutting member 122 moves to a position closest to the front end of the puncture tube, the outside atmosphere enters the front port 122d of the cutting member 122 through the vent and the air passage between the cutting member 122 and the puncture tube 112, and the inside of the cutting member 122 is vacuum, so that the tissue specimens cut under the inside and outside pressure difference enter the cutting member 122 through the vent 122c and then are transmitted to the collection box 150 for performing the film making treatment and pathological detection analysis diagnosis. On one hand, the pathological tissue specimens can be extracted in a minimally invasive manner, and accurate pathological diagnosis can be made; on the other hand, the method can be used for performing minimally invasive surgical excision on the focus.
Fig. 9 is a schematic perspective view of an electro-cutting biopsy needle set according to a second embodiment of the present invention, and fig. 10 is a schematic view of a vacuum assisted breast biopsy system having the electro-cutting biopsy needle set shown in fig. 9. As shown in the drawing, the structure of the electro-cutting biopsy needle kit in this embodiment is substantially the same as that of the electro-cutting biopsy needle kit in the embodiment, except that the high frequency circuit of the electro-cutting biopsy needle 100 is directly connected to the host 300, that is, the first pin and the second pin on the puncture assembly 110 are disposed on the side opposite to the handle 200, the host 300 is connected to the circuit board of the handle 200 through the second cable 420, and is electrically connected to the first pin and the second pin through the third cable 430.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (12)
1. An electrotome biopsy surgical device, comprising:
the puncture tube assembly comprises a puncture tube, the puncture tube is provided with a front end and a rear end, and a sampling groove is formed in the tube wall of the puncture tube;
a cutting assembly including a cutting member reciprocally movable back and forth along an axial direction of the penetration tube;
the cutting assembly is characterized in that the cutting member is arranged in the puncture tube, the cutting assembly is provided with a first electrode and a second electrode, and the first electrode and the second electrode are positioned at the front end of the cutting member; the cutting member includes a cutting member body and a cutting edge disposed on a front port 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, and the first edge and the second edge are mutually insulated to form the first electrode and the second electrode respectively;
the device further comprises a first interface and a second interface, wherein the first interface and the second interface are respectively and electrically connected with the first electrode and the second electrode, any one of the first interface and the second interface is used for directly or indirectly connecting with a high-frequency output end of a host, and the other interface is used for directly or indirectly connecting with a high-frequency input end of the host;
the first cutting edges and the second cutting edges are multiple, and the first cutting edges and the second cutting edges are alternately distributed along the front port of the cutting part main body.
2. The electrosurgical biopsy surgical device of claim 1, wherein the first and second edges are oppositely disposed on a front side of the front port, and wherein the first and second edges are arcuate extending along a circumference of the front port.
3. The electrosurgical biopsy surgical device of claim 2, wherein a front end of the first cutting edge is flush with a front end of the second cutting edge.
4. The electrosurgical biopsy surgical device of claim 2, wherein a gap is left between the first and second edges or wherein the first and second edges are provided with an insulating material.
5. The electrosurgical biopsy surgical device of claim 1, wherein the first and second cutting edges are formed from a bent wire.
6. The electrosurgical biopsy surgical device of claim 5, wherein the first and second cutting edges are directly secured to an end surface of the front port.
7. The electrosurgical biopsy surgical device of any one of claims 1-6, wherein the cutter body is made of an insulating material, a first connecting wire and a second connecting wire are disposed in a tube wall of the cutter body, one end of the first connecting wire is electrically connected to the first cutting edge, the other end is electrically connected to the first interface, one end of the second connecting wire is electrically connected to the second cutting edge, and the other end is electrically connected to the second interface.
8. The electrosurgical biopsy surgical device of any one of claims 1-6, wherein the cutter body comprises two metal tubes having semi-circular cross-sections, wherein the tube surfaces are covered with an insulating layer, wherein two tubes are insulated from each other, wherein one tube is electrically connected to the first blade and the first interface, and the other tube is electrically connected to the second blade and the second interface.
9. The electrosurgical biopsy surgical device of any one of claims 1-6, wherein the lance assembly further comprises a tubular housing, the rear end of the lance being secured within the front end of the housing, the rear end of the cutter extending beyond the lance and into the housing, a plunger fixedly secured to the cutter extending into the housing, the plunger having a first gear threadedly engaged therewith, and a rotation stop mechanism for limiting rotation of the cutter relative to the lance.
10. An electrotome biopsy needle kit comprising a handle comprising a housing and a circuit board disposed within the housing, characterized in that the electrotome biopsy needle kit further comprises an electrotome biopsy surgical device according to any one of claims 1-9, the handle further comprising a third interface and a fourth interface respectively mated with the first interface and the second interface, the third interface and the fourth interface electrically connected with the circuit board, the electrotome biopsy needle electrically connected with the housing, the first interface and the second interface electrically connected with the third interface and the fourth interface respectively.
11. An electro-cutting biopsy needle kit comprising a handle comprising a housing and a circuit board disposed within the housing, further comprising an electro-cutting biopsy needle as claimed in any one of claims 1 to 9, the electro-cutting biopsy needle being connected to the housing.
12. A vacuum assisted breast biopsy system, comprising:
the electro-cutting biopsy needle kit of claim 10 or 11; and
a main body including a high-frequency transmitting module for generating a high frequency, the high-frequency transmitting module having a high-frequency output terminal and the high-frequency input terminal, the high-frequency output terminal and the high-frequency input terminal being connected to the circuit board by a cable so as to be indirectly connected to the first interface and the second interface, or the high-frequency output terminal and the high-frequency input terminal being directly connected to the first interface and the second interface by a cable.
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| CN202110511553.3A CN113274061B (en) | 2021-05-11 | 2021-05-11 | Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system |
| CN202310202932.3A CN116350279A (en) | 2021-05-11 | 2021-05-11 | Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system |
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| CN202477745U (en) * | 2012-03-01 | 2012-10-10 | 王中英 | Thyroid needle biopsy unit |
| CN203303145U (en) * | 2013-05-29 | 2013-11-27 | 杭州康基医疗器械有限公司 | High-frequency double-electrode electric resection puncturing needle |
| US20180317895A1 (en) * | 2017-05-05 | 2018-11-08 | Hoya Corporation | Endoscopic biopsy needle tip and methods of use |
| CN107456272A (en) * | 2017-09-28 | 2017-12-12 | 成都美创医疗科技股份有限公司 | A kind of plasma external piles scalpel |
| CN208693435U (en) * | 2017-11-28 | 2019-04-05 | 徐川东 | Throat's low-temperature plasma cuts ablation needle knife |
| CN209808523U (en) * | 2018-12-28 | 2019-12-20 | 重庆西山科技股份有限公司 | Bipolar radio frequency puncture head and biopsy device |
| CN211213471U (en) * | 2019-08-31 | 2020-08-11 | 武汉半边天医疗技术发展有限公司 | Radio frequency coagulation knife tube for breast biopsy |
| CN210749304U (en) * | 2019-09-16 | 2020-06-16 | 南京康友医疗科技有限公司 | Biopsy puncture needle and biopsy puncture system |
| CN212547010U (en) * | 2020-03-16 | 2021-02-19 | 普霖医疗科技(广州)有限公司 | Marrow aspiration biopsy needle |
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