Electrosurgical device and method of use

Abstract

To provide an electrosurgical device and a method for illuminating a surgical site during an electrosurgical treatment.SOLUTION: An electrosurgical device 112 includes a housing having a proximal end and a distal end, an electrosurgical electrode 128 extending from the distal end of the housing in a distal direction, a plurality of light sources in the housing, and an optical lens assembly including a plurality of optical constituents that are (i) mutually coupled at the distal end of an optical lens assembly and (ii) separate from each other at the proximal end of the optical lens assembly. Each of the optical constituents includes a proximal reflection surface and a distal transmission surface. Each of the proximal reflection surfaces extends distally from each light source and has a non-spherical shape configured to virtually collimate light reflected by the proximal reflection surface. Each of the distal transmission surfaces is configured to distally output light from the optical constituents.SELECTED DRAWING: Figure 7A

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the benefit of U.S. Provisional Application No. 63 / 076,089, filed on September 9, 2020, and U.S. Provisional Application No. 63 / 211,876, filed on June 17, 2021, the entire contents of which are incorporated herein by reference. filed on

[0002] This disclosure generally relates to electrosurgical devices, and more particularly to electrosurgical devices and methods for illuminating a surgical site during an electrosurgical procedure.

Background Art

[0003] Electrosurgery involves applying a high - frequency (RF) current (also referred to as electrosurgical energy) to biological tissue to cut, coagulate, or modify the biological tissue during an electrosurgical procedure. Specifically, an electrosurgical generator generates a current and provides it to an active electrode, which applies the current (and thus, power) to the tissue. The current passes through the tissue and returns to the generator via a counter - electrode plate (also referred to as a "dispersive electrode"). When the current passes through the tissue, the impedance of the tissue converts a portion of the current into thermal energy (e.g., through the principle of resistive heating), and this thermal energy raises the temperature of the tissue and induces modifications to the tissue (e.g., cutting, coagulating, removing, and / or sealing of the tissue).

Summary of the Invention

[0004] In one embodiment, an electrosurgical device is described. The electrosurgical device includes a housing having a proximal end and a distal end. The electrosurgical device also includes an electrosurgical electrode extending distally from the distal end of the housing and a plurality of light sources within the housing. The plurality of light sources generate light ​​​​​​​​​​ It can be configured to do so.

[0005] In addition, the electrosurgical device includes an optical lens assembly having a proximal end and a distal end. It is possible to (i) have the distal end of the optical lens assembly (ii) connected to each other at the proximal end of the optical lens assembly It may include multiple optical components. Each optical component is one of the multiple light sources. Each optical component is optically coupled to its respective light source. The proximal reflective surface extending distally from each of the light sources, and the distal end of the optical lens assembly. The system includes a distal transmission surface. The proximal reflection surface reflects the light emitted by each light source at a distance. It is configured to reflect toward the proximal end. The proximal reflecting surface is reflected by the proximal reflecting surface. It can have an aspherical shape configured to substantially collimate the incoming light. The distal transmission surface is configured to output light distally from the optical components.

[0006] In another embodiment, the process for operating an electrosurgical device is described. Seth includes providing an electrosurgical apparatus in block 2410. The electrosurgical apparatus The electrosurgical device may include a housing having a proximal end and a distal end. Multiple electrosurgical electrodes and housings extending distally from the distal end of the uzing It can also include light sources. Multiple light sources can be configured to generate light.

[0007] In addition, the electrosurgical device includes an optical lens assembly having a proximal end and a distal end. It is possible to (i) have the distal end of the optical lens assembly (ii) connected to each other at the proximal end of the optical lens assembly It may include multiple optical components. Each optical component is one of the multiple light sources. Each optical component is optically coupled to its respective light source. The proximal reflective surface extending distally from each of the light sources, and the distal end of the optical lens assembly. The system includes a distal transmission surface. The proximal reflection surface reflects the light emitted by each light source at a distance. It is configured to reflect toward the proximal end. The proximal reflecting surface is reflected by the proximal reflecting surface. It can have an aspherical shape configured to substantially collimate the incoming light. The distal transmission surface is configured to output light distally from the optical components.

[0008] The process also involves emitting light from multiple light sources. After emitting light, the process (i) The distal end is substantially collimated by the proximal reflecting surface of the optical element. (ii) The light is reflected toward the part, and the distal transmitting surface of the optical component directs the light toward the distal direction. Output includes transmitting light to each optical component.

[0009] The process involves a shaft to produce the corresponding rotation of the electrosurgical electrode relative to the housing. This also includes rotating it relative to the housing. The process further involves electrosurgical energy This includes supplying the fluid from the shaft to the electrosurgical electrodes.

[0010] Characteristics that are considered to be novel features of the exemplary embodiments are shown in the attached claims. However, exemplary embodiments and their preferred uses, further purposes and descriptions will be best understood by reference to the following detailed description of exemplary embodiments of the present disclosure when read in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] [Figure 1] FIG. 1 is a simplified block diagram of an electrosurgical system according to one embodiment. [Figure 2] FIG. 2 is a cross-sectional view of an electrosurgical device according to one embodiment. [Figure 3] FIG. 3 is a simplified block diagram of an electrosurgical device according to one embodiment. [Figure 4A] FIG. 4 is a diagram showing an embodiment of an optical lens assembly and a light source shown in FIG. 3 according to one embodiment. [Figure 4B] FIG. 5 is a cross-sectional view of optical components of the optical lens assembly shown in FIG. 4 according to one embodiment. [Figure 5A] FIG. 6 is a diagram showing an embodiment of an optical lens assembly and a light source shown in FIG. 3 according to another embodiment. [Figure 5B] FIG. 7 is a cross-sectional view of optical components of the optical lens assembly shown in FIG. 5 according to one embodiment. [Figure 6] FIG. 8 is a simplified block diagram of a light source according to one embodiment. [Figure 7A] FIG. 9 is a perspective view of an embodiment of the electrosurgical device of FIG. 1 and the optical lens assembly of FIGS. 4A-4B with the shaft in a first axial position relative to the housing according to one embodiment. [Figure 7B] FIG. 10 is a perspective view of an embodiment of the electrosurgical device of FIG. 7A with the shaft in a second axial position relative to the housing according to one embodiment. [Figure 8] FIG. 11 is a partially exploded view of a housing of the electrosurgical device shown in FIGS. 7A-7B according to one embodiment. [Figure 9] FIG. 12 is a cross-sectional view of a housing, a shaft, and a distal portion of an electrosurgical electrode for the embodiment shown in FIGS. 7A-7B according to one embodiment. [Figure 10]This is a perspective view of an electrical contact according to an embodiment. [Figure 11] This figure shows the distal portion of a shaft with the upper portion removed to show the optical components located in the inner cavity of the shaft for the embodiment shown in Figures 7A and 7B, according to one embodiment. [Figure 12] This figure shows an electrosurgical electrode, a suction sleeve, the optical lens assembly shown in Figures 4A and 4B, and the light source assembly according to one embodiment. [Figure 13] This figure shows an electrosurgical apparatus, as depicted in Figures 7A to 12, with components removed to illustrate the dynamics of supplying power to a light source, according to one embodiment. [Figure 14] This is a perspective view of another embodiment of the electrosurgical apparatus shown in Figure 1 and another embodiment of the optical lens assembly shown in Figures 5A-5B, according to a different example. [Figure 15] Figure 14 shows a cross-sectional view of the electrosurgical device, as seen along the longitudinal axis of the electrosurgical device according to an embodiment. [Figure 16] This is an enlarged view of the cross-section of the distal end of the shaft and electrosurgical electrode shown in Figure 15, according to one embodiment. [Figure 17] Figures 14 to 16 show perspective views of the smoke exhaust channel and the shaft of the electrosurgical apparatus according to one embodiment. [Figure 18] Figures 14 to 16 show side views of the smoke exhaust channel and the shaft of the electrosurgical apparatus according to one embodiment. [Figure 19] Figures 14 to 16 show partially exploded views of the light source, optical lens, and heat sink assembly in the smoke exhaust channel of an electrosurgical apparatus, according to one embodiment. [Figure 20] This figure shows the optical lens assembly and electrosurgical electrode assembly shown in Figures 5A and 5B according to one embodiment. [Figure 21] This is a cross-sectional view of the optical components of an optical lens assembly shown in Figure 3, according to one embodiment. [Figure 22] This figure shows the optical output pattern for the optical lens assembly shown in Figures 4B to 4B, according to one embodiment. [Figure 23] This figure shows an example of an optical output pattern for an optical lens assembly shown in Figures 5A and 5B, according to one embodiment. [Figure 24] This is a flowchart illustrating an example of the process for operating an electrosurgical device according to one embodiment. [Figure 25] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 26] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 27] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 28] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 29] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 30] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 31] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 32] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 33] This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Figure 34]This is a flowchart illustrating an example of a process for operating an electrosurgical device, which can be used in conjunction with at least the process shown in Figure 24. [Modes for carrying out the invention]

[0012] The examples disclosed here include some, but not all, of the examples disclosed. This is fully explained below with reference to the attached drawings. In practice, there are several different actual Examples may be described, and should be construed as being limited to the examples shown herein. No. Rather, these examples demonstrate that the present disclosure is sufficient and complete, and the scope of the disclosure is limited to the industry. It is explained to be fully communicated to the person.

[0013] The terms “about” or “substantially” with respect to the quantities or measurements described herein The term does not require that the cited characteristic, parameter, or value be exactly achieved; for example, Deviations or variations including tolerances, measurement errors, measurement accuracy limits, and other factors known to those skilled in the art. This means that motion may occur in an amount that does not negate the effect that the characteristic is intended to provide. do.

[0014] As described above, the electrosurgical device applies electrosurgical energy to the tissue through the electrosurgical electrodes. For this purpose, electrical energy supplied by an electrosurgical generator can be used. To help the surgeon better visualize the surgical site while performing electrosurgery, electro-surgery is used. The surgical device includes features that provide light to be transmitted distally to illuminate the surgical site. For example, an electrosurgical device can illuminate the surgical site by placing electrosurgical electrodes along it. This includes one or more optical features that transmit light to and / or around electrosurgical electrodes. It is possible.

[0015] Providing optical features for transmitting light to electrosurgical devices could be advantageous. However, optical features occupy space inside or on the electrosurgical unit. This could create various challenges. For example, larger access to small surgical cavities. To provide and / or to the electrosurgical device the electrosurgical electrodes and / or the surgical site Limit or reduce the size of the electrosurgical unit to mitigate the obstruction of the line of sight. It may be advantageous to do so. Careful consideration of these space constraints is important for electrical work. The surgical device has features such as, for example, a mechanism for removing surgical smoke from the surgical site. This can be more serious than in this embodiment, which includes features that occupy other spaces.

[0016] Another challenge is achieving the desired light emission quality in the relatively small available space. In fact, it is sometimes desirable to provide light around the electrosurgical electrodes. In some cases, it is advantageous to do so while reducing the shadows produced by the surgical electrodes. Furthermore, the light source This reduces the optical loss along the optical transmission path between the point where light is output from the electrosurgical device and the point where light is output. It may be advantageous to do so. For example, reducing light loss can help operate the light source. This can help reduce power demands and / or heat generation.

[0017] This invention relates to an electrosurgical device incorporated to solve one or more of the above-mentioned problems. We provide an optical lens assembly that can do this.

[0018] Referring to Figure 1, an electrosurgical system 100 according to one embodiment is shown. As shown in 1, the electrosurgical system 100 includes an electrosurgical generator 110 and an electrosurgical device Includes 112. Generally, the electrosurgical generator 110 is suitable for performing electrosurgical procedures on a patient. It can generate electrosurgical energy. For example, the electrosurgical generator 110 is capable of generating electrosurgical energy. Convert lid power into electrosurgical energy, such as radio frequency (RF) output power. An electrode converter circuit 114 that can perform this function may be included. In one embodiment, a power converter circuit Circuit 114 can control the voltage, current, and / or frequency of the electrosurgical energy. It may include one or more components (for example, one or more transformers). .

[0019] In the embodiment, the electrosurgical generator 110 receives one or more inputs from the user. A user interface that can provide one or more outputs to the user. It may include a face 116. As an example, the user interface 116 is 1 One or more buttons, one or more switches, one or more dials, one pin or multiple keypads, one or more touchscreens, one or more displays Lace screen, 1 or more indicator lights, 1 or more speakers, It may include and / or one or more tactile output devices.

[0020] In one embodiment, the user interface 116 is for the electrosurgical generator 110 It can be made possible to select one operating mode from among multiple operating modes. For example, the operating modes include cutting mode, solidification mode, removal mode, and / or This can include a sealing mode. Combinations of these waveforms produce a mixed mode. It can also be formed for this purpose. In one embodiment, the operating mode is electrosurgical energy It can correspond to each waveform for energy. Therefore, in this embodiment The electrosurgical generator 110 is then controlled using the user interface 116 to select the movement Electrosurgery with a waveform selected from multiple waveforms based at least partially on the operating mode It can generate energy.

[0021] The electrosurgical generator 110 is one that relates to electrosurgical energy and / or target tissue. Alternatively, it may include one or more sensors 118 that can sense multiple states. As an example, the sensor 118 includes one or more current sensors, and one or more Voltage sensor, one or more temperature sensors, and / or one or more bioimpedance sensors - may include a dance sensor. In the embodiment, the electrosurgical generator 110 additionally Alternatively, one or more parameters related to the state sensed by sensor 118 Based on the data, a predetermined amount of electrosurgical energy (e.g., power) and / or multiple It is possible to generate electrosurgical energy having a waveform selected from among the available waveforms.

[0022] In one embodiment, electrosurgical energy is applied to the muscles and / or near the target tissue. To reduce (or avoid) nerve stimulation, use frequencies around 100 kilohertz (kHz). It can have a much larger frequency. In another embodiment, the electrosurgical energy is It can have a frequency range of approximately 300kHz to approximately 500kHz.

[0023] In Figure 1, the electrosurgical generator 110 is connected to the electrosurgical device 112. It also includes a connector 120 that can be easily connected to, for example, an electrosurgical device. 112 may include a power cord 122 having a plug, the plug being an electrosurgical power generator It can be coupled to the socket of the connector 120 of the unit 110. In this arrangement, electrical The surgical generator 110 connects the connector 120 of the electrosurgical generator 110 to the electrosurgical device 112. Electrosurgical energy is supplied to the electrosurgical device 112 via a connection with the power cord 122. It is possible.

[0024] As shown in Figure 1, the electrosurgical apparatus 112 may include a housing 123. The housing 123 arranges the components of the electrosurgical apparatus 112 inside and / or on top of it. It can be made into an elongated structure. In some embodiments, housing 1 23 can be an integrated monolithic structure. In other embodiments, How Zing 123 may include multiple structures that are connected to each other.

[0025] In Figure 1, the housing 123 includes a handle 124 that defines the internal bore, and a handle A shaft 126 extending distally from 124, and an electrosurgical electrode connected to the shaft 126. Includes pole 128. Generally, handle 124 allows the user to perform electrosurgery while electrosurgery is being performed. The device 112 can be configured to facilitate gripping and manipulation. For example, The handle 124 allows the user to operate the electrosurgical device 112 with one hand. It has a shape and / or size that can facilitate electrosurgery. Yes, it is possible. In one embodiment, the handle 124 is an electric device that the user holds in a writing instrument gripping position. It may have a shape and / or size that facilitates holding the surgical device 122. (For example, the electrosurgical device 112 can be an electrosurgical pencil.)

[0026] In addition, for example, the handle 124 and / or shaft 126 are electrically insulated (e.g. For example, it can be composed of one or more materials (such as plastic materials). While performing electrosurgery, the electrosurgical energy passing through the electrosurgical device 112 is used to generate electricity. This makes it easier to isolate the components.

[0027] In some embodiments, the shaft 126 is fixed in a stationary form to the handle 12 4 can be connected. This is, for example, to shafts 126 that would otherwise be relative to each other. And to simplify electrical connections that may need to be made to compensate for the movement of the handle 124. Therefore, it may be possible to simplify manufacturing and reduce manufacturing costs (for example, slip ring electric (By omitting gas contacts and / or sliding electrical contacts). In one embodiment, The shaft 126 and the handle 124 are fixed and immovable relative to each other. The handle 124 and shaft 126 can be formed as a single monolithic structure. In another embodiment, the handle 124 and shaft 126 are joined by welding, adhesive. A coupling, and / or another coupling that prevents movement between the handle 124 and the shaft 126. They can be permanently joined together by this means.

[0028] In another embodiment, the shaft 126 is telescopic relative to the handle 124. The formula can be made movable. For example, the shaft 126 can be made distal to the handle 124. In order to extend in the direction and retract the shaft 126 in the proximal direction, the shaft 126 is The internal bore defined by handle 124 can be made telescopically movable. (For example, it is movable along the longitudinal axis of the electrosurgical device 112). Several implementations In this example, the electrosurgical electrode 128 is coupled to the shaft 126, thereby allowing electricity The surgical electrode 128, together with the shaft 126, is aligned along the longitudinal axis relative to the handle 124. It can move in the axial direction. This provides length adjustment for the electrosurgical device 112. This regulation can occur at multiple different depths within the tissue (for example, different depths in a patient). (Due to anatomical shape and / or size) and / or at multiple different angles This makes it easier to perform pneumosurgical procedures.

[0029] In some embodiments, the electrosurgical electrode 128 is additionally or alternatively used in electrosurgical procedures. The device 112 can be made rotatable around a rotation axis parallel to its longitudinal axis. In some embodiments, the electrosurgical electrode 128 is connected to a handle 124 and a shaft 126 It can be made rotatable relative to. In other embodiments, the electrosurgical electrode 128 is This allows the shaft 126 to be fixed in the rotational direction, thereby allowing the shaft 126 The electrosurgical electrode 128 is defined by the handle 124 and the shaft 126. Rotatable together with at least one additional component in the cavity Rotating the electrosurgical electrode 128 relative to the handle 124 is performed on the electrosurgical device 11. Adjust the angle of the electrosurgical electrode 128 relative to one or more user input devices 130 of 2. This makes it easier to do so. In this arrangement, the user's finger enters the user The handle 124 is comfortably gripped in a position where the force device 130 can be comfortably operated. On the other hand, the electrosurgical electrode 128 can, for example, be used on the surgical site being operated on by the user. Among multiple rotational positions relative to the handle 124 based on location, size and / or shape It is set to the selected rotation position.

[0030] In one embodiment, the electrosurgical electrode 128 is 360 degrees relative to the handle 124. It can also be rotated to a greater extent. This allows the operator to control the electrosurgical electrode 128. Ease of use can be enhanced by allowing for unlimited free rotation. However, in other embodiments, the electrosurgical electrode 128 is only 360 degrees or less. It can be made rotatable (for example, rotatable only 180 degrees or rotatable only 360 degrees). (Possible). This means that the operator can still achieve the desired rotational array, but the operator The element rotates in a first direction and reaches a stopping position that limits further rotation, and then the desired number of rotations It may rotate back in a second direction to achieve the reversal.

[0031] Rotation of the unipolar electrosurgical electrode 128 relative to the handle 124 and / or shaft 126 It may be advantageous to provide a unipolar electrosurgical electric current in some embodiments. The pole 128 can be fixed in the rotational direction relative to the handle 124 and shaft 126. For example, (for example, omitting slip ring electrical contacts and / or sliding electrical contacts) (By doing so) otherwise the movement of the shaft 126 and handle 124 relative to each other By simplifying electrical connections that may require compensation, for example, manufacturing can be simplified. This can help to simplify processes and reduce manufacturing costs.

[0032] The user input device 130 is for the electrosurgical apparatus 112 and / or electrosurgical generator 110. You can select from the operating modes. For example, in one embodiment, the user The input device 130 is configured to select from cutting operation mode and coagulation operation mode. It is possible. In response to the operation of the user input device 130 of the electrosurgical device 112, The surgical apparatus 112 (i) corresponds to the operating mode selected via the user input device 130 (ii) Electrical Surgical energy can be supplied to the electrosurgical electrode 128.

[0033] In Figure 1, the electrosurgical device 112 is connected to the electrosurgical generator 110. Multiple It includes electrical components. For example, the electrosurgical device 112 includes a printed circuit board 132 (for example (For example, a flexible printed circuit board), housing conductor 134, and / or electrosurgical Provides a circuit for conducting energy from the power cord 122 to the electrosurgical electrode 128. Selected from a group of electrical components including a shaft conductor 136 that can It may also include one more electrical component. One or more of the electrical components are The internal bore 125 and / or shaft 126 are defined by the handle 124. It can be positioned within a defined internal cavity.

[0034] In this embodiment, the user input device 130 is located on one or the outer surface of the handle 124. It can include multiple buttons. Each button of the user input device 130 is a printed circuit board The board 132 is designed to be operable so that one of the multiple switches 138 can be activated. It is possible. Generally, the switch 138 and / or printed circuit board 132 are power This controls the supply of electrosurgical energy from the pneumatic generator 110 to the electrosurgical electrode 128. It is operable in such a way. For example, in one embodiment, each button is operated (for example, pressed When this is done, the respective switches 138 associated with the buttons can be activated, As a result, the printed circuit board 132 transmits a signal to the electrosurgical generator 110, and the electrosurgical generator The unit 110 responds by changing the power level and / or frequency corresponding to the operating mode associated with the button. It supplies electrosurgical energy in a specific form. In another embodiment, by operating a button, This activates the respective switches 138 associated with the buttons, The 138 can be closed, thereby completing the circuit to the electrosurgical generator 110. The electrosurgical generator 110 responds to the button and the corresponding power level to the operating mode. To supply electrosurgical energy having a waveform. Several embodiments of this embodiment In this case, the printed circuit board 132 can be omitted.

[0035] In both embodiments, the electrosurgical energy supplied by the electrosurgical generator 110 The power cord 12 is connected by the housing conductor 134 and the shaft conductor 136. 2. From the printed circuit board 132 and / or switch 138 (ii) electrosurgical electrodes It can be supplied to 128. As a result, as shown in Figure 1, printed circuit board 1 32 can be coupled to the power cord 122, and the housing conductor 134 is a printed circuit board The plate 132 and the shaft conductor 136 can be coupled, and the shaft conductor 136 is an electric hand It can be coupled to the surgical electrode 128. In this arrangement, the housing conductor 134 is an electric Air surgical energy (supplied to the housing conductor 134 via the printed circuit board 132) ) can be conducted to the shaft conductor 136, and the shaft conductor 136 is capable of conducting electrosurgical energy Ghee can be conducted to the electrosurgical electrode 128.

[0036] Generally speaking, the housing conductor 134 and the shaft conductor 136 each receive electrosurgical energy. One or more conductive baths are provided for supplying ghee to the electrosurgical electrode 128. It may include a kinetic element. More specifically, the housing conductor 134 is an electrosurgical energy One or more guides of the handle 124 that can supply energy to the shaft conductor 136 It may include an electrical element, and the shaft conductor 136 transmits electrical energy to the housing conductor 1 One or more shafts 126 that can supply from 34 to the electrosurgical electrode 128 It may include conductive elements. The shaft 126 is movable relative to the handle 124 and / Alternatively, in a rotatable embodiment, the housing conductor 134 is the housing conductor 13 4 and, in order to maintain the electrical coupling between the shaft conductor 136 and the electrosurgical electrode 128, (i) Shaft conductor 126 and / or electric The surgical electrode 128 moves telescopically relative to the handle 124, and / or (i i) The electrosurgical electrode 128 rotates relative to the handle 124.

[0037] The electrosurgical device 112 includes a user input device 130 in Figure 1, but the user input device In another embodiment, 130 may be separate from the electrosurgical device 112. In addition, or alternatively, the user input device 130 may be connected to the electrosurgical device 112 as described above. It may include one or more foot pedals that can be operated to control its operation. The foot pedal provides a signal to the electrosurgical generator 1 in response to the operation of the foot pedal. It can be connected to 10 in a communicative manner.

[0038] As shown in Figure 1, the electrosurgical device 112 is also configured to emit light. It may include one or more light sources 140. The light source 140 is an optical lens assembly. Optically coupled to 142, the optical lens assembly 142 is emitted by the light source 140. The device receives the emitted light and illuminates the surgical site while performing electrosurgical surgery using the electrosurgical electrode 128. It is configured to transmit light distally towards the surgical site. (Figures 4A-4A) As will be explained in more detail below regarding 23, the optical lens assembly 142 is a light source The light emitted by the 140 is directed distally, thereby illuminating the surgical site. It can help improve the quality.

[0039] In Figure 1, the light source 140 can be coupled to the shaft 126. 0 can also move telescopically relative to the handle 124 along with the shaft 126. Yes, it is possible. However, in other embodiments, the light source 140 is located inside the handle 124. It may be located in the bore and / or coupled to the outer surface of the handle 124. The light source 140 comprises one or more light-emitting diodes (LEDs), organic light-emitting diodes, etc. (OLED), optical fiber, non-fiber optical waveguide, and / or lens may be included. It is possible. Additionally, for example, the light source 140 has one or more light sources (e.g., LEDs). It can include a light-emitting diode printed circuit board (LED PCB). As will be explained in more detail later, LED PCBs can include PCB apertures and electrosurgical One or more other components of the device 112 (for example, the electrosurgical electrode 128) are open It can extend through the mouth.

[0040] This embodiment includes a light source 140, a user input device 130, and a printed circuit board 132. The switch 138, housing conductor 134, and / or shaft conductor 136 are additional In other words, power can be supplied from the DC power supply 144 to the light source 140. In this example, the DC power supply 144 is a battery located on the handle 124, and the power cord 1 22 plugs, and / or along the power cord 122 between the handle 124 and the plugs It may include a battery receptacle positioned as shown in Figure 1. The electrosurgical apparatus 112 is shown in Figure 1. In this embodiment, a DC power supply 144 is included, but in other embodiments, the DC power supply 144 is an electrosurgical device It can be separate from and different from the one in 112. For example, in another embodiment, The pneumatic generator 110 may include a DC power supply 144.

[0041] In addition, in this embodiment including a light source 140, the user input device 130 is the light source 140 It can be made operable to emit light. In one embodiment, user input The force device 130 is separate from the buttons that control the electrosurgical operation mode of the electrosurgical device 112. It may include a button to independently control the light source 140. In another embodiment, The input device 130 and the printed circuit board 132 control the electrosurgical operation mode via a button. The operation of the electric light can be configured to simultaneously control the operation of the light source 140 (for example, the electric light When the button is operated to apply electrosurgical energy to the pneumatic electrode 128, light Source 140 can be automatically activated to emit light.

[0042] As shown in Figure 1, the operation of the user input device 130 for operating the light source 140 In response, the DC power supply 144 is connected to the printed circuit board 132, the housing conductor 134, and / Alternatively, power (e.g., DC voltage) can be supplied to the light source 140 via the shaft conductor 136. This can be done. In this embodiment, one of the conductive elements of the housing conductor 134 Or multiple units supply power from DC power supply 144 to light source 140 and / or from light source 140 It can be configured to return power to the DC power supply 144. Therefore, the housing conductor 134 additionally or alternatively, the shaft 126 and the light source 140 are connected to the handle 124. In contrast, when moving in a telescopic manner, electrical communication is performed between the DC power supply 144 and the light source 140. We can help provide it.

[0043] In the above embodiment, the user input device 130 in the handle 124 is a light source 140 The operation can be controlled, but the light source 140 can be additionally or alternatively , in the electrosurgical generator 110 (for example, via the user interface 116) and / or by one or more user input devices on the plug of the power cord 122 It can be operated.

[0044] As described above, the electrosurgical device 112 additionally removes surgical smoke from the target tissue. Surgical Smoke is a byproduct of various surgical procedures. For example, surgical smoke during a surgical procedure. The equipment includes electrosurgical units (ESUs), lasers, electrocautery devices, ultrasound devices, and / or It is produced as a by-product of other power surgical instruments (e.g., bone saws and / or drills). This can occur. In some cases, surgical smoke can cause tissue damage. May contain toxic gases and / or biological products. In addition, surgical Smoke can have an unpleasant odor. For these and other reasons, Many guidelines suggest that surgeons should be less or less exposed to surgical smoke. This indicates that it should be kept to a minimum.

[0045] To reduce (or minimize) exposure to surgical smoke, A smoke extraction system may be used during the procedure. Generally, a smoke extraction system is used to remove smoke from the surgical site. A suction device that can produce sufficient suction and / or vacuum pressure to extract smoke. It may include a suction pump 146. In some embodiments, the smoke exhaust system is located away from the operating room. Combined with an exhaust system that discharges surgical smoke (e.g., a wall-mounted exhaust system). It may be done. In other embodiments, the smoke exhaust system includes surgical smoke. The air may be filtered and returned to the operating room. In the example, the suction pump 146 and The electrosurgical generator 110 is provided as a separate device or in one device (e.g.) For example, they can be integrated (in a common housing).

[0046] As shown in Figure 1, the shaft 126 is ejected from the internal cavity of the shaft 126. It may include a smoke channel 148. The smoke exhaust channel 148 is located far from the electrosurgical electrode 128. It can also include a smoke inlet that can extend circumferentially around the central axis of the part. In this arrangement, the smoke inlet of the exhaust channel is electrically controlled by the handle 124. All rotational alignment positions of the electrosurgical device 112 relative to the surgical electrode 128 and / or target tissue This can help to receive surgical smoke into the exhaust channel 148. However, in another embodiment, the smoke exhaust channel 148 is connected to the electrosurgical electrode 128. It may include one or more smoke inlets that do not extend circumferentially around the periphery.

[0047] In one embodiment, the smoke exhaust channel 148 is separated from the optical lens assembly 142 by a gap This can include spaced-out outer tubes. For example, shaft 126 is the outer tube and optical lens To provide a gap between the optical lens assembly 142 and the lens assembly 142, It may include multiple standoffs extending between the smoke channel 148 and the outer tube. In this embodiment, the optical lens assembly 142 is the optical lens assembly 142 and The standoff is included so that it is formed as a single monolithic structure. This is possible. In another embodiment, the standoff is the outer pipe of the smoke exhaust channel 148 and single It can be formed as a single monolithic structure. In another embodiment, stando The part of the exhaust channel 148 is separate from the outer tube and optical lens assembly 142. It is possible.

[0048] In one embodiment, the exhaust channel 148 of the shaft 126 is the first part of the smoke flow path The internal bore of the handle 124 defines the second portion of the smoke passage. Figure 2 shows a partial cross-sectional view of the electrosurgical apparatus 112 according to an embodiment of this example. In this arrangement, surgical smoke is released from the surgical site through the exhaust of shaft 126. The handle 124 is received into channel 148 and moves proximally along the exhaust channel 148. It can flow into the internal bore 125 of the handle 124. In the internal bore 125 of the handle 124, the smoke is Furthermore, it is connected to the proximal end of the handle 124 and sucks smoke from the handle 124 It can flow into the smoke tube 150, which is configured to transport to the pump 146.

[0049] As described above, the optical lens assembly 142 is designed to project light emitted by the light source 140 to a distance. By directing the light in a specific direction, it helps to improve the quality of the light illuminating the surgical site. Yes, it is possible. The optical lens assembly 142 is located at the distal end of the shaft 126. This is possible. In some embodiments, the optical lens assembly 142 is connected to the electrosurgical electrode 1 Circumferentially around the electrosurgical electrode 128 so that light is emitted distally around all sides of 28. It can be positioned as follows: This reduces shadows and the shaft 126 relative to the handle 124. and / or at all rotational alignment positions of the electrosurgical device 112 relative to the target tissue It can help provide greater uniformity in lighting.

[0050] In some embodiments, the smoke exhaust channel 148 and the optical lens assembly 142 , can be made coaxial. For example, smoke exhaust channel 148 and optical lens assembly 1 Each of the 42s can have a longitudinal axis that coincides with the central axis of the shaft 126. The central axis of the smoke exhaust channel 148 coincides with the central axis of the shaft 126. Placing the Canal 148 may be advantageous for efficient suction performance. For example, better lines of sight and / or more intuitive at all rotational alignment positions. To provide handling, the electrosurgical electric current is aligned with the central axis of the shaft 126. Placing Extreme 128 may be advantageous.

[0051] In the embodiment, the optical lens assembly 142 can define a through bore and discharge The smoke channel 148 and / or electrosurgical electrode 128 extend through the through bore. This is possible. In this arrangement, the electrosurgical electrode 128 is centered on the shaft 126. The smoke exhaust channel 148 extends around the circumference of the electrosurgical electrode 128 and The optical lens assembly 142 can receive smoke and emit light for electrosurgery. It can be extended around electrode 128.

[0052] Figure 3 shows additional features of the optical lens assembly 142 according to one embodiment, as shown in Figure 1. A simplified block diagram of the electrosurgical apparatus 112, including the electrosurgical apparatus, is shown. In Figure 3, the electrosurgical apparatus The stem 100 is connected to the housing 123 and the electrosurgical electrode 128 in the housing 123. It includes multiple light sources 140 and an optical lens assembly 142. The housing 123 is near Having a distal end and a distal end, the electrosurgical electrode 128 extends from the distal end of the housing 123. It extends distally.

[0053] Furthermore, as shown in Figure 3, the optical lens assembly 142 has a proximal end and a distal end The optical lens assembly 142 has (i) the distal end of the optical lens assembly 142 (ii) at the proximal end of the optical lens assembly 142 they are joined together, It includes a plurality of optical components 301 spaced apart. In the embodiment, the plurality of optical components 301 does not transmit light effectively to each other (for example, one optical component 301 or Less than 10% of the light passes through the adjacent optical component 301. This is relatively narrow. It can help provide a beam of light. However, optical component 301 The portion of light emitted by one of them is emitted by another optical component 301. It can overlap with the portion of light. This is because the optical component 301 performs mutual transmission of light. Compared to embodiments that do not provide this feature, it can provide a wider beam of light.

[0054] In Figure 3, the optical lens assembly 142 includes two or more optical components 301. It is possible. More specifically, the optical lens assembly 142 has an optical configuration element equal to N. It can contain prime quantities, and N is an integer value greater than 1. As shown in Figure 3, each The optical component 301 is optically coupled to each of the multiple light sources 140. This allows light source 140 to also contain an amount of light equal to N. In this embodiment, the optical lens assembly 142 has three or more optical components 301 It may include three or more light sources 140 along the longitudinal axis of the shaft 126. This helps to disperse the optical components 301 around the optical element, thereby enabling the optical element The lens assembly 142 emits light distally and around the electrosurgical electrode 128. This allows for (i) reduction of shadow formation and (ii) electrosurgical treatment of handle 124. All rotational alignment positions of the electrode 128 and / or target tissue of the electrosurgical device 112 It provides greater uniformity in lighting.

[0055] As will be explained in more detail below, at the proximal end of the optical lens assembly 142 Each optical component 301 can define a cavity, and a light source 1 can be placed in this cavity. Each light is directed such that 40 is distal to the most proximal surface of the optical lens assembly 142. Source 140 is positioned. This means the light source is positioned more than the nearest surface of the optical lens assembly. Compared to other optical lenses positioned nearby, the wide beam emitted by light source 140 It can help better capture and transmit corner rays. However, several In that embodiment, the light source is positioned near the nearest surface of the optical lens assembly 142. It can be placed there.

[0056] Each optical component 301 includes a proximal reflecting surface 303 and a distal transmitting surface 305. Surface 303 is distal to each light source 140 which is optically coupled to the optical component 301. It extends. The proximal reflecting surface 303 reflects the light emitted by each light source 140 into an optical structure. It is configured to reflect toward the distal end of the component 301. In some embodiments Furthermore, the proximal reflecting surface 303 substantially collimates the light reflected by the proximal reflecting surface 303. It can have a spherical or parabolic shape configured to be a curved shape.

[0057] In other embodiments, the proximal reflective surface 303 is reflected by the proximal reflective surface 303 It has an aspherical shape configured to substantially collimate light. Proximal reflecting surface 303 Aspherical shapes offer greater efficiency, and are possible in the case of parabolic or spherical reflectors. It is possible to achieve a higher level of light collimation than before. In one embodiment... Furthermore, the aspherical shape of the proximal reflecting surface 303 can be defined by the following equation 1: z(r)= C*r^2 / (1+sqrt(1-C^2 *(K+1) * r^2) + a4 *r^4 + a6 *r^6+a8*r^8 (Equation 1) Here, C is the curvature, K is the cone constant, and a4, a6, and a8 are the aspherical coefficients. In this embodiment, the proximal portion of the proximal reflective surface 303 can have a parabolic shape, The distal portion of the reflective surface 303 can have an aspherical shape, which also allows for relatively wide-angle light rays to be reflected. It may help to collimate them.

[0058] In the embodiment, the proximal reflective surface 303 can be an internal total internal reflection (TIR) ​​reflector. For example, the proximal reflective surface 303 and the housing 123 have a gap that surrounds the proximal reflective surface 303. They can be spaced apart from each other in a surrounding manner. The proximal reflecting surface 303 can be arranged as a TIR reflector. , additional manufacturing costs and / or typical of many conventional optical devices (e.g., flashlights) This can help alleviate the biocompatibility requirements associated with metal reflectors incorporated into the system. ru.

[0059] The distal transmission surface 305 is located at the distal end of the optical lens assembly 142. 5 is configured to output light distally from the optical component 301. Each distal transmission surface 305 of the lens assembly 142 is a light emission surface from the optical lens assembly 142. It may include one or more features for controlling force. In an embodiment, an electric hand On the plane distal to the distal end of the surgical electrode 128, the optical lens assembly 142 The light emitted in this way has a substantially uniform intensity of light at each point in space. Yes, it is possible. For example, light emitted by the optical lens assembly 142 can be directed to the electrosurgical electrode 1 The light pattern can be defined on the plane located distal to the distal end of the 28, and the light pattern The light intensity at the weakest point of the light pattern is less than the light intensity at the strongest point of the light pattern. It can still have 50 percent strength even without it.

[0060] In some embodiments, each distal transmission surface 305 provides light in a substantially uniform manner. An aspherical lens can be configured in such a way. In one embodiment, each distal radiant The surface 305 may be divided into multiple zones, and the light rays can be traced from each zone to the target plane. It is possible. Aspherical surfaces allow for nearly uniform irradiance within a defined area of ​​the target plane due to the dispersion of light rays. It can be configured to provide a level. For example, an aspherical lens can provide Snell's Law. And using the trace of the light rays, the lens surface angle for each zone is determined, and then, continuous To determine the aspherical surface, the angle is curve-fitted to the aspherical cessation equation (e.g., equation 1 above). It can be designed by doing so.

[0061] In another embodiment, each distal transmission surface 305 can be a Fresnel lens. For example, a Fresnel lens may have a flat surface at its distal end. A flat surface can define multiple concentric rings, each ring being, Optical properties (e.g., freight defined by pitch, depth, angle, and / or curvature) It can have a filament groove, and the optical properties of multiple rings can be different from each other. As a result, the flat surface at the distal end transmits light in a manner that approximates an aspherical lens. (For example, different rings have different pitches, depths, angles, and / or curvatures of Fresnel grooves.) (They can differ in at least one of them). This is relatively flat and compact This helps to improve the focusing of light onto the distal transmission surface 305 while maintaining its shape. It is possible.

[0062] In another embodiment, the distal transmission surface 305 is a spherical lens, an aspherical lens, and a Fresnel lens. In one of the lens types selected from a group of lens types consisting of lenses The distal end may include multiple lenslets. It can further help to enhance this. For example, lenslets have a regular pattern It can include multiple small spherical lenses arranged in a hexagonal pattern. For example, the pattern could be hexagonal. (For example, each lenslet has six sides) or rectangular (for example, each lenslet It can have four sides, and adjacent lenslets are in contact with each other. Each small spherical lenslet generates an image of the source. Therefore, A lenslet array generates multiple images of the source. The lenslets are close to each other. Because it includes multiple lenses positioned in a certain way, the images overlap each other, at least partially. Consequently, it makes it difficult for the human eye to distinguish a single image. The beam appears uniform and homogeneous.

[0063] Figures 4A to 5B show two embodiments of the optical lens assembly 142 of Figure 3 according to an example. This is shown in particular in Figures 4A and 5A, which illustrate the first and second embodiments, respectively. Figure 4B shows the assembly of the optical lens assembly 142 and the light source 140. Figures 4A and 5A and 5B show the optical lens assembly 142 and 5B respectively. The diagram shows a cross-sectional view passing through one optical component 301 of the light source 140.

[0064] As shown in Figures 4A to 5B, the optical lens assembly 142 has a proximal end 142A The optical lens assembly 142 has (i) an optical lens assemblies (ii) The distal end 142B of the 142 is coupled to each other, and the optical lens assembly This also includes optical components 301 that are spaced apart from each other at the proximal end 142A of Ri 142. In this embodiment, the optical components 301 do not transmit light to each other. However, Then, the portion of light emitted by one of the optical components 301 is directed towards the electrosurgical electrode 12 To more uniformly disperse light in the distal plane of the distal end of 8, another optical configuration is required. The portion of light emitted by the element can overlap with the optical lens. In one embodiment, the optical lens The assembly 142 can be formed by a molding process.

[0065] In Figures 4A to 5B, the optical lens assembly 142 has three optical components 301 and includes three light sources 140. As described above, this is the longitudinal axis of the shaft 126. This helps to distribute the optical components 301 around 413, thereby allowing light The lens assembly 142 directs light distally and electrosurgically to reduce shadow formation. It can be emitted around pole 128. In addition, for example, three optical components 301 and the three light sources 140 include different amounts of optical components 301 and light sources 140. It provides the desired quality of light with a more compact array and lower power requirements than other embodiments. It is possible. However, in other embodiments, the optical lens assembly 14 2 may include different amounts of optical components 301 and light sources 140.

[0066] In the illustrated embodiment, the light source 140 is a plurality of LEDs coupled to the LED PCB 407. Includes LED. LED PCB407 has P extending entirely through LED PCB407. It can take the form of a ring having a CB aperture 409. Optical lens assembly 142 This also includes a lens aperture 411 that passes through the optical lens assembly 142 and defines a through bore. The PCB aperture 409 of the LED PCB 407 is located in the optical lens assembly 14. The two lens apertures 411 can be aligned, thereby allowing the electrosurgical device 112 to be aligned with the 1 One or more other components (e.g., electrosurgical electrode 128 and / or smoke exhaust channel) Nel 148) has LEDs arranged around the components, LED PCB 407 and It can extend through the optical lens assembly 142.

[0067] For example, the light source 140 is circumferentially positioned around the longitudinal axis 413 of the electrosurgical electrode 128. The longitudinal axis 413 can be positioned such that the proximal end of the electrosurgical electrode 128 and the electrosurgical electrode 128 are aligned. It extends between the distal end of electrode 128. In Figures 4A to 5B, three light sources 140 These are arranged at equal intervals around the longitudinal axis 413 of the electrosurgical electrode 128, and optical radar The lens aperture 411 defined by the lens assembly 142 is the length of the electrosurgical electrode 128. It has a central axis that lies on the same line as the hand-direction axis 413. This is the circumference of the electrosurgical electrode 128. It can help improve the uniformity of light in the surrounding area.

[0068] Additionally, for example, a suction tube defining the exhaust channel 148 is connected to the LED PCB 407. The PCB aperture 409 and the lens aperture 411 in the optical lens assembly 142 It can extend through. In this arrangement, the light source 140 is positioned around the suction tube. The distal end 142B of the optical lens assembly 142 extends around the suction tube. This allows for the emission of smoke and light around the electrosurgical electrode 128. It can release [something].

[0069] As shown in Figures 4A and 5A, the optical lens assembly 142 has an inner surface and an outer surface The inner surface defines the lens aperture 411 and through bore of the optical lens assembly 142. In one embodiment, between the proximal reflective surface 303 and the distal transmissive surface 305, light The cross-section of the lens assembly 142 is circular on the inner surface and non-circular on the outer surface. This allows the rotation of the optical lens assembly 142 relative to the components adjacent to the outer surface. While blocking, the optical lens assembly 142 through the bore of the optical lens assembly 142 It can rotate with respect to a component extending through it. As an example, a noncircular is an ellipse. It can be a shape, a polygon, and / or a non-polygon.

[0070] In another embodiment, rotation of the surrounding components is permitted and the optical lens assembly To prevent the rotation of internally positioned components relative to the Bri 142, the inner surface is non-circular. While it can have a cross-sectional shape, its outer surface is circular. In another embodiment, adjacent To allow rotation of the component, both the inner and outer surfaces have a circular cross-sectional shape. Can this be done, or can both the inner and outer surfaces prevent the rotation of adjacent components? It can be non-circular.

[0071] As shown in Figures 4B and 5B, the proximal end 142A of the optical lens assembly 142 In this configuration, each optical component 301 can define a cavity 415, and this cavity In T415, the light source 140 is located distal to the most proximal surface of the optical lens assembly 142. Each light source 140 is positioned accordingly. Additionally, each optical component 301 The gap separates each light source 140 that is optically coupled to the optical component 301. This is because the light source is positioned near the most proximal surface of the optical lens assembly 142. Compared to other optical lenses, it can capture wide-angle light rays emitted by light source 140. It can help to capture and transmit signals more effectively.

[0072] As shown in Figures 4A to 5B, each optical component 301 has a proximal reflecting surface 303 and a far It includes a transmissive surface 305. The proximal reflecting surface 303 is optically coupled to the optical component 301. Each light source 140 extends distally. The proximal reflecting surface 303 is located at each light source 14 The light emitted by 0 is configured to be reflected toward the distal end of the optical component 301. It is being done.

[0073] Furthermore, in Figures 4A to 5B, the proximal reflecting surface 303 reflects the proximal reflecting surface 303. It has an aspherical shape configured to substantially collimate the light. Proximal reflecting surface 3 The aspherical shape of 03 offers higher efficiency than that possible with parabolic or spherical reflectors. It can provide and achieve a higher level of light collimation. In this embodiment, the proximal portion of the proximal reflecting surface 303 can have a parabolic shape, and the proximal reflecting The distal portion of the emitting surface 303 can have an aspherical shape. This also allows for relatively wide-angle light rays. It can sometimes help with collimation.

[0074] As described above, the proximal reflecting surface 303 can be a TIR reflector. For example, proximal The reflective surface 303 and the housing 123 are arranged such that the gap surrounds the proximal reflective surface 303. They can be spaced apart. Placing the proximal reflecting surface 303 as a TIR reflector is an additional manufacturing cost. Helping to reduce biocompatibility requirements associated with strikes and / or metal reflectors can.

[0075] The distal transmission surface 305 is located at the distal end 142B of the optical lens assembly 142. The distal transmission surface 305 is configured to output light distally from the optical component 301. As described above, each distal transmission surface 305 of the optical lens assembly 142 is an optical lens It may include one or more features for controlling the light output from Swertia japonica 142. For example, each distal transmission surface 305 is a Fresnel lens in Figures 4A to 4B, and each The distal transmission surface 305 is aspherical in Figures 5A and 5B.

[0076] Figure 6 shows a simplified block diagram of the light source 140 according to one embodiment. (Figures 4B, 5) In Figures B and 6, each light source 140 includes an LED 6 including a die 619 and a protective layer 621. 17. The protective layer 621 is made of an optically transparent material, such as a layer of silicone material. It can be made into a layer. The protective layer 621 is the diode located below in conventional LEDs. In contrast to rigid silicone lenses that protect the structure, non-rigid structures (e.g., coated This can be done by having the optical component 301 die 61 The light source 140 is positioned in the cavity 415 of the optical component 301 so that 9 can be protected. It is possible because of its arrangement.

[0077] By using a non-rigid protective layer 621 instead of a rigid silicone lens, each The overall size of the LED617 can be reduced. This is because the optical diameter and LED diameter and This helps to reduce the size of the optical lens assembly 142 while maintaining the ratio. For example, in conventional LEDs, a rigid silicone lens is typically used in die 61. It is approximately 200% larger than the diameter of 9. In contrast, the LED with the aforementioned non-rigid protective layer 621 It can have a diameter that is approximately 10% to 50% larger than the diameter of die 619. As an example, each LED617 has a diameter of approximately 1 millimeter (mm) to approximately 2 mm. This is possible. Therefore, the above-mentioned light source 140 solves the problem of spatial constraints and wide lumbar This can help improve light capture from a light source having an optical pattern.

[0078] Figures 7A to 13 show an optical lens assembly 1 shown in Figures 4A to 4B, according to one embodiment. An embodiment of the electrosurgical apparatus 112, including 42, is shown in Figure 1. Figures 7A to 7B show... As described above, the housing 123 of the electrosurgical device 112 has a proximal end and a distal end. It includes a handle 124 and a shaft 126 extending from the distal end of the handle 124. The surgical electrode 128 extends from the distal end of the shaft 126, and multiple light sources 140 are sh It is located in the shaft 126. The handle 124 defines the internal bore 125, and the shaft The to 126 extends distally from the internal bore 125 of the handle 124. Also, see Figures 7A to 7A. In 7B, the distal portion 128A of the electrosurgical electrode 128 extends distally from the shaft 126. In the example, the distal portion 128A of the electrosurgical electrode 128 is connected to the electrosurgical energy The work end is defined, configured to add ghee to the tissue.

[0079] In Figures 7A and 7B, the most distal tip of the electrosurgical electrode 128 relative to the handle 124 To adjust the distance between the ends, the shaft 126 is located in the internal bore 125 of the handle 124. It is telescopically movable. For example, Figure 7A shows the longitudinal axis of the electrosurgical device 112. Figure 7 shows the shaft 126 in a first position relative to the handle 124 along the curve. B is in a second position relative to the handle 124 along the longitudinal axis of the electrosurgical device 112. This shows the shaft 126 in Figures 7A and 7B. In Figures 7A and 7B, the first position is the second position. It is located closer to the handle 124 in the first position, and as a result, the shaft 126 is located closer to the handle 124 In the retracted position, the shaft 126 extends from the handle 124 in the second position. It is in that position. As described above, the shaft 126 is telescopic relative to the handle 124. Moving to treat target tissue of different sizes and / or shapes requires electrical stimulation. It is possible to easily adjust the length of the surgical device. However, as mentioned above... In other embodiments, the shaft 126 is positioned relative to the handle 124. It can be fixed and connected to the handle 124 so that it is not movable.

[0080] In some embodiments, the electrosurgical device 112 has a collar at the proximal end of the handle 124. It may include 762. Collar 762 is on the outer surface of shaft 126 and the inner surface of collar 762 Rotatable relative to the handle 124 to increase and / or reduce friction between the surface This allows the collar 762 to be positioned relative to the shaft 12 of the handle 124. Allows and / or prevents axial telescopic movement of 6.

[0081] Additionally, in Figures 7A and 7B, the shaft 126 rotates relative to the handle 124. The electrosurgical electrode 128 is fixed in place relative to the handle 124 and shaft 126. It is rotatable. This simplifies the design and reduces the manufacturing cost of the electrosurgical device 112. This is possible. For example, the handle 124, shaft 126 and electrosurgical electrode 128 This arrangement consists of a housing conductor 134, a shaft conductor 1236, and an electrosurgical electrode 128. The electrical connections between them can be simplified. Additionally, this arrangement is relative to handle 124. During the telescopic movement of shaft 126, and / or shaft 126 and the handle To reduce damage to the electrical connection of the electrosurgical electrode 128 during rotation relative to dollar 124. It can help.

[0082] Figures 8 to 13 show how the telescopic and rotational movements described above can be facilitated. An additional embodiment of the electrosurgical device 112 is shown. Figure 8 shows the handle 124 partially disassembled. The diagram is shown. As shown in Figure 8, the handle 124 has an upper part 864A and a lower part 86 The lower portion 864B can be coupled to define the internal bore 125 between it and 4B. The upper portion 864A may be included. Generally, the internal bore 125 is used in the electrosurgical device 112 This can be a space within the handle 124 that can accommodate one or more of its components. .

[0083] In the internal bore 125 of the handle 124, the electrosurgical device 112 is located in the handle 124 Directions parallel to the longitudinal axis (for example, the proximal end 124A of the handle 124 and the handle) Shaft guide 866 extending along the direction extending between the distal end 124B of L 124 The shaft guide 866 extends into the internal cavity 868 of the shaft 126. It is configured in such a way. The internal cavity 868 of the shaft 126 is The proximal end 126A and the distal end 126B of the shaft 126 (shown in Figures 7A-7B) ) can be made into a bore that extends between the two. This allows the internal cavity 868 to be a It can be defined by the inner surface of 126.

[0084] As shown in Figure 8, the shaft guide 866 is located between the shaft 126 and the handle 124. It may have a non-circular cross-sectional shape to help prevent rotation between them. For example The outer surface of the shaft guide 866 extending in the internal cavity 868 of the shaft 126 is In the internal cavity 868 of the shaft 126, the non-circular shape of the inner surface of the shaft 126 It can have a mating non-circular shape. In this arrangement, the shaft 126 can slide proximally and distally on the shaft guide 866 (e.g., along the longitudinal axis of the handle 124), but the shaft 126 is prevented from rotating with respect to the shaft guide 866 by engagement between (i) the inner surface of the cavity 868 of the shaft 126 and (ii) the outer surface of the shaft guide 866. Also, as shown in FIG. 8, the shaft guide 866 is rotationally fixed with respect to the handle 124. For example, a portion of the shaft guide 866 can have a non-circular shape that can engage a structure in the corresponding-shaped handle 124. In FIG. 8, for example, the proximal portion of the shaft guide 866 has hexagonal features that engage hexagonal sockets formed in the inner wall of the handle 124 (e.g., the inner walls of the upper portion 864A and / or the lower portion 864B of the handle 124) to prevent rotation between the shaft guide 866 and the handle 124. In this arrangement, the shaft 126 is rotationally fixed with respect to the handle 124 as a result of a first non-rotational engagement between the shaft 126 and the shaft guide 866 and a second non-rotational engagement between the shaft guide 866 and the handle 124. As described above, the electrosurgical electrode 128 is coupled to the shaft 126, and the electrosurgical electrode 128 is rotatable with respect to the handle 124 and the shaft 126. Exemplary arrangements for coupling the electrosurgical electrode 128 to the shaft 126 in a form that permits such rotation of the electrosurgical electrode 128 are shown in FIGS. 9-10. FIG. 9 is shown in FIGS. 7A-7B.

[0085]

[0086] ​ Handle 124, shaft 126 and electrosurgical electrode 128 for the given embodiment Figure 9 shows a cross-sectional view of the distal portion. Figure 9 shows a part of the housing conductor 134 and a section according to an embodiment. The electrical contacts 970 of the shaft conductor 136 are also shown. Figure 10 shows the electrical contacts 970 shown in Figure 9. A perspective view is shown.

[0087] As shown in Figure 9, the shaft 126 is connected to the proximal portion 128B of the electrosurgical electrode 128. It may include coupled electrical contacts 970. In particular, the electrical contacts 970 are connected to the electrosurgical electrode 1 The proximal portion 12 of the electrosurgical electrode 128 is rotatable relative to the electrical contact 970. It is coupled to 8B. In this embodiment, the electrosurgical electrode 128 and the electrical contact 970 The electrosurgical electrode 128 is electrically coupled to the electrical contact 970 at all rotational positions. It is being done.

[0088] In this embodiment, the electrical contact 970 is frictionally attached to the proximal portion 128B of the electrosurgical electrode 128. It can engage with the electrosurgical electrode 1, thereby (i) a force smaller than the threshold force can be applied to it. When applied to 28, the electrical contact 970 is connected to the electrosurgical electrode 128. (ii) The rotation is prevented, and a force greater than the threshold force is applied to the electrosurgical electrode 128. Sometimes the electrical contact 970 allows rotation of the electrosurgical electrode 128 relative to the electrical contact 970. The threshold force prevents the electrosurgical electrode 128 from rotating freely under gravity alone. Electrosurgical electrodes 128 are used to cut and / or coagulate tissue. A sufficiently large amount of force is used to prevent the electrosurgical electrode 128 from rotating when it is being used. It is possible to apply threshold force by using a separate tool or apparatus, either additionally or alternatively. Without requiring the user to manually rotate the electrosurgical electrode 128 relative to the handle 124, The amount of force can be made sufficiently low so that this can be achieved.

[0089] Provides frictional engagement between the proximal portion 128B of the electrosurgical electrode 128 and the electrical contact 970. To support this, the electrical contact 970 is located around the proximal portion 128B of the electrosurgical electrode 128. It can extend over at least half of the enclosure. For example, in Figure 10, Contact 970 extends over more than half of the periphery of the proximal portion 128B of the electrosurgical electrode 128. It extends and is biased inward to apply force to the proximal portion 128B of the electrosurgical electrode 128. It includes a pair of arms 971, which are connected by electrical contacts 970. The force controls the rotation of the electrosurgical electrode 128 relative to the shaft 126 and handle 124. This can help in doing so. Additionally, in this array, the arm 971 of the electrical contact 970 The electrosurgical electrode 128 is located around its axis of rotation (for example, the central axis of the electrosurgical electrode 128). It can allow rotations greater than 360 degrees.

[0090] The electrical contact 970 connects the electrosurgical electrode 128 to the internal cavity 868 of the shaft 126. It can also help to hold it in the axial direction. For example, the proximal position of the electrosurgical electrode 128 Part 128B is the axial movement of the electrosurgical electrode 128 relative to the shaft 126 in the distal direction. A first shoulder portion 972A that can engage with the electrical contact 970 to block or prevent This may include: Additionally, for example, the proximal portion 128B of the electrosurgical electrode 128 is To prevent axial movement of the electrosurgical electrode 128 relative to the shaft 126 in the direction of the position, It can include a second shoulder 972B that can engage with the stopper 973 of the shaft 126. It is possible.

[0091] In some embodiments, the engagement between the first shoulder 972A and the electrical contact 970 can prevent or preclude the removal of the electrosurgical electrode 128 from the shaft 126 such that the electrosurgical electrode 128 is fixedly coupled to the shaft 126. In an alternative embodiment, the engagement between the first shoulder 972A and the electrical contact 970 can allow the electrosurgical electrode 128 to be removed and replaced with another electrosurgical electrode 128.

[0092] Additionally, as shown in FIGS. 9 - 10, the electrical contact 970 can include a first end 970A coupled to the proximal portion 128B of the electrosurgical electrode 128 and a second end 970B extending into the handle 124. As shown in FIG. 9, the second end 970B engages a housing conductor 134 extending along the handle 124 in a direction parallel to the longitudinal axis of the handle 124. In this embodiment, the second end 970B of the electrical contact 970 is configured to remain engaged with the housing conductor 134 while the shaft 126 moves telescopically relative to the handle 124. For example, the electrical contact 970 is fixedly coupled to the shaft 126 such that the electrical contact 970 moves with the shaft 126 relative to the handle 124. In this arrangement, the second end 970B of the electrical contact 970 can continuously engage and be electrically coupled to the housing conductor 134 whereas the second end 970B slides along the housing conductor 134 in response to axial movement of the shaft 126 relative to the handle 124. Thereby, the electrical contact 9 970 can continuously provide electrical connection to the housing conductor 134 as the shaft 126 moves axially relative to the handle 124. 970 can continuously provide electrical connection to the housing conductor 134 as the shaft 126 moves axially relative to the handle 124. 70 is any rotational position of the electrosurgical electrode 128 relative to the handle 124 and / or To supply electrosurgical energy to the electrosurgical electrode 128 at any axial position. It can be made easy.

[0093] As shown in Figure 9, the shaft 126 extends from the proximal end 126A of the shaft 126. It may also include a smoke exhaust channel 148 extending to the distal end 126B of the shaft 126. In Figures 7A, 7B, and 9, the electrosurgical electrode 128 is connected to the smoke exhaust channel 148. The electrosurgical electrode 128 and the inner surface of the shaft 126 can include a defined gap. As shown, it extends through the internal cavity 868 of the shaft 126. Exemplary Embodiment In this configuration, the shaft 126 has a central extension between the proximal end 126A and the distal end 126B. Having an axis, the electrosurgical electrode 128 is on the same axis as the central axis of the shaft 126. It has wires. In this arrangement, the smoke exhaust channel 148 is around the electrosurgical electrode 128. Therefore, it can have a substantially constant size. This is around the electrosurgical electrode 128. It can help provide relatively consistent suction at each point. However, In other embodiments, the central axes of the electrosurgical electrode 128 and the shaft 126 are relative to each other. It can be offset from and parallel to it.

[0094] Referring to Figure 8, the internal cavity 868 at the proximal end 126A of the shaft 126 This can provide the proximal end of the exhaust channel 148 (shown in Figure 9). The proximal end of the smoke channel 148 is in fluid communication with the smoke exhaust chamber 152 of the handle 124. This is possible. For example, in Figure 8, the exhaust chamber 152 is connected to the shaft guide 866 The internal bore of the handle 124, which is near the bore 874 and shaft guide 866 It can include the part 125.

[0095] Referring again to Figure 9, the electrosurgical device 122 has a smoke exhaust channel in the shaft 126. It may also include a suction sleeve 975 that can be fluidly coupled to 148, as shown in Figure 9. As shown above, the distal portion of the suction sleeve 975 extends distally from the distal end 126B of the shaft 126. The electrosurgical electrode 128 can extend through the suction sleeve 975. This is possible. In particular, the suction sleeve 975 is the distal portion 128A of the electrosurgical electrode 128. Electrosurgical electrode 1 is positioned to define a smoke inlet that can extend circumferentially around the central axis. It can be spaced apart from 28.

[0096] In one embodiment, the suction sleeve 975 is connected to the shaft 126. 5 rotations correspond to the electrosurgical electrode 128 relative to the shaft 126 and handle 124. It can be fixed in a rotational direction relative to the electrosurgical electrode 128 so as to cause rotation. In this setup, the user applies suction to rotate the electrosurgical electrode 128 relative to the handle 124. Sleeve 975 can be used. This is advantageous for the user of electrosurgical electrodes. Direct contact with 128 can be avoided because the electrosurgical electrode 128 is This is because they can be relatively hot during and after use. Additionally, electrosurgical electrodes Direct contact with 128 may adversely affect the coating of the electrosurgical electrode 128. Therefore, the suction sleeve 975 provides structural integrity and operational performance for the electrosurgical electrode 128. It can help maintain it.

[0097] In Figure 9, the suction sleeve 975 includes one or more teeth 976 and an electrosurgical electrode. 128 includes one or more slots 977. One or more suction sleeves 975. Each of the teeth 976 rotates the electrosurgical electrode 128 in response to the rotation of the suction sleeve 975. To rotate, one or more teeth 976 engage with one or more slots 977. Thus, it is located in one of each of the 977 slots. However, In another embodiment, the suction sleeve 975 includes one or more slots 977. This allows the electrosurgical electrode 128 to include one or more teeth 976.

[0098] In some embodiments, the suction sleeve 975 and the electrosurgical electrode To adjust the distance between the most distal tip of 128 and the internal cavity of shaft 126 In the i868, it can be made telescopically movable. For example, one or more Each of the teeth 976 has a suction sleeve 975 connected to the shaft 126 and / or electrosurgical tube. One or more slots 9 in response to telescopic movement relative to pole 128 Each of the 77 can be configured to slide longitudinally. In the scope-type arrangement, the suction sleeve 975 is exposed to the electrosurgical electrode 128. To adjust the range of the distal portion 128A, the shaft 126 and the electrosurgical electrode 128 are positioned opposite each other. It can be moved in this way. In particular, the suction sleeve 975 is (i) an electrosurgical electrode 128 To expose a larger area and improve visibility at the surgical site, the shaft 126 (ii) Move towards the distal end 126B, and a smaller range of the electrosurgical electrode 128 Shaft 1 is designed to expose the surrounding area and capture a relatively large amount of smoke at the surgical site. It can be moved away from the distal end 126B of 26.

[0099] The suction sleeve 975 telescopically connects to the shaft 126 and / or the electrosurgical electrode 128. While a scope-like movable design may be advantageous, other embodiments use suction slides. The 975 is fixed axially to the shaft 126 and / or the electrosurgical electrode 128. This can simplify manufacturing and reduce production costs.

[0100] In one embodiment, the suction sleeve 975 is connected to the electrosurgical electrode 128. It can be made virtually transparent so that it can be seen through. This is the electrosurgical electrode 128 It can help to increase visibility. However, in other embodiments, absorption The pull sleeve 975 can be formed from an opaque material.

[0101] Figure 11 shows the optical components located in the internal cavity 868 of the shaft 126. Figure 12 shows the distal portion of the shaft 126 with the upper portion removed. B shows the optical lens assembly 142, which includes an electrosurgical electrode 128 and a smoke extraction tool. A suction sleeve 975 defines the channel 148, and the optical lens assembly 142 It extends through the lens aperture 411 and the PCB aperture 409 of the LED PCB 407.

[0102] As shown in Figures 9 and 11-12, the electrosurgical device 112 has a shaft 126 The internal cavity 868 includes a light source 140 and an optical lens assembly 142. This is possible. As described above, the light source 140 emits light into the optical lens assembly 142. The optical lens assembly 142 is configured to receive light from the light source 140 in the distal direction. It is configured to transmit light and emit light from the distal end 126B of the shaft 126.

[0103] As shown in Figure 12, the electrosurgical electrode 128 and suction sleeve 975 are LED P In the PCB aperture 409 of CB407 and the optical lens assembly 142, lens aperture 4 It may extend through the through bore defined by 11. Additionally, in Figure 12 As shown, the light source 140 can be positioned around the electrosurgical electrode 128. In the arrangement, the electrosurgical device 112 provides illumination and suction around the electrosurgical electrode 128. It can be provided. Furthermore, in this arrangement, the optical lens assembly 1 shown in Figures 3 to 4B Integrating 42 improves the quality of illumination, reduces the size of the distal end of the electrosurgical unit, and improves the hand This improves visibility into the surgical site.

[0104] As shown in Figure 11, the electrosurgical device 112 is coupled to the proximal side of the light source 140. It may also include the Tosync 1180, which is a light source 140, and by extension, an electrosurgical device 11 It can help lower the temperature of 2.

[0105] In one embodiment, the light source 140, the optical lens assembly 142 and / or heat shield Link 1180 can be fixedly coupled to shaft 126. In this arrangement, The electrosurgical electrode 128 and suction sleeve 975 are located on the light source 140 and optical lens assembly 1 42 and / or heatsink 1180 can be made rotatable. For example In the light source 140, optical lens assembly 142 and / or heat sink 1180 The opening allows the electrosurgical electrode 128 and suction sleeve 975 to rotate within the opening. It may have an acceptable size and / or shape (e.g., circular shape). In this arrangement, the light source 140, the optical lens assembly 142 and the heat sink 1 180 is telescopically movable relative to the handle 124 together with the shaft 126. It is possible.

[0106] As described above, the housing conductor 134 and the shaft conductor 136 transmit the light source 140 to DC It can be provided that it is electrically coupled to the power supply 144. Figure 13 shows one embodiment. , housing conductor 134 and shaft conductor 13 for supplying DC power to light source 140 Figures 7A to 12 show the electrosurgical apparatus 112 with components removed to illustrate 6. As shown in 13, the shaft 126 is axial with respect to the handle 124. While moving in a telescopic manner in that direction, the corresponding conductor 1334A on the handle 124, Positive photoconductor 1336A and negative photoconductor 1336 are slidably engaged with 1334B. It can include B.

[0107] As shown in Figures 7A to 8 and Figure 13, the user input device 130 is a handle 124 The outer surface includes a first button 730A and a second button 730B. In one embodiment, The first button 730A is used to operate the electrosurgical device 122 in cutting operation mode. The second button 730B can be activated to activate the coagulation operation mode of the electrosurgical device 122. It can be operated to operate with a button. In this embodiment, the third button (Figure (Not shown) Provide the plug of the power cord 122 and / or the electrosurgical generator 110. The third button is used to activate the light source 140 (i.e., to turn light on the light source 140). It can be activated (to cause or stop the emission of light). As mentioned above. The user input device 130 can be configured differently in other embodiments. For example, the electrosurgical device 112 performs a greater amount of operation in a smaller amount of operation mode. In the code, and / or in other embodiments, different types of operating modes (e.g., For example, it can be made to operate in the exemplary operating modes described above. In addition, For example, at least one user input device 130 may additionally or alternatively provide electrosurgical input. User interface 116 and / or one or more operating modes of the electric device 110 In this context, another external device (for example, a foot switch) is used to operate the electrosurgical device 112. ) may include. Also, for example, the user input device 130 in the handle 124 is It may also include a third button for operating the light source 140.

[0108] Figures 14-20 show the electrosurgical apparatus 112 of Figure 1 and Figures 5A-5, respectively, according to a different embodiment. Figure 14 shows an embodiment of optical lens assembly 142 of B. Figure 14 shows an electrosurgical device according to an embodiment. Figure 15 shows a perspective view of the device 112. Figure 15 shows the longitudinal axis 1482 of the electrosurgical apparatus according to the embodiment. A cross-sectional view of the electrosurgical device 112, viewed along the line, is shown.

[0109] As shown in Figures 14-15, the electrosurgical device 112 defines the internal bore 125. A handle 124, and a shaft 126 extending distally from the internal bore 125 of the handle 124, The shaft 126 includes a smoke exhaust channel 148 in the internal cavity 1468. The shaft 126 has a proximal end 126A and a distal end 126B. It has a longitudinal axis 1482 extending between them. In addition, the electrosurgical electrode 128 is a shaft It extends distally from the distal end 126B of T126.

[0110] In one embodiment, the shaft 126 is connected to the handle 124 by the electrosurgical electrode 128. To adjust the distance of the most distal tip, the internal bore 125 of the handle 124 is telescopic. It can be made movable in a scope-like manner. As described above, the shaft is attached to the handle 124. Moving 126 telescopically allows for target sets of different sizes and / or shapes. It is possible to easily adjust the length of the electrosurgical device to treat the tissue. However, as described above, in other embodiments, the shaft 126 is the shaft 126 The connection is made by fixing and joining it to the handle 124 so that it is not movable relative to the handle 124. can.

[0111] In some embodiments, the electrosurgical device 112 has a collar at the proximal end of the handle 124. It may include 1462. Collar 1462 is on the outer surface of shaft 126 and collar 146 Rotate the handle 124 to increase and / or decrease friction between the inner surfaces of 2. This makes it possible to rotate the collar 1462 relative to the handle 124. The axial telescopic movement of shaft 126 can be permitted and / or blocked.

[0112] Additionally, in Figures 14 and 15, the shaft 126 is rotatable relative to the handle 124. The exhaust channel 148 is fixed to the handle 124 in the rotational direction. Additionally, as will be explained in more detail below, the electrosurgical device 112 is shown in Figures 5A to 5B. It may further include a light source 140 and an optical lens assembly 142, both of which It can also be fixed in the rotational direction relative to the handle 124. Smoke exhaust 148, light source 140 and / or Alternatively, the optical lens assembly 142 is fixed in the rotational direction while being electrically connected to the shaft 126. Providing rotation of the surgical electrode 128 simplifies the design and / or the electrosurgical device 11 This can help reduce the manufacturing costs of item 2.

[0113] The rotational arrangement of these components of the electrosurgical apparatus 112 is at least partially (i) The shaft 126 conducts electrosurgical energy to the electrosurgical electrode 128, and (ii) the handle 1 The rotation of shaft 126 relative to 24 corresponds to the electrosurgical electrode 128 relative to handle 124. The electrosurgical electrode 128 is positioned from the distal end 126B of the shaft 126 to produce a rotation. This can be achieved as a result of distal extension. For example, at least shaft 126 Part of it is so that the shaft 126 can supply electrosurgical energy to the electrosurgical electrode 128. The shaft conductor 136 (for example, at least partially defining the internal cavity 1468) It can be formed from a conductive material, such as a conductive tube.

[0114] In one embodiment, the electrosurgical electrode 128 and shaft 126 are a single-part monolith It is formed as a block structure. This is an electrosurgical electrode 128 connected to another electrosurgical electrode 128 The electrosurgical electrode 128 is permanently fixed to the shaft 126 so that it cannot be replaced. This embodiment may be advantageous. In another embodiment, electrosurgical electrode 1 28 and shaft 126 are joined (e.g., by welding, soldering and / or friction fitting) They can be separate components connected to each other by (the electrosurgical electrode 128). In some embodiments where the shaft 126 is a separate component, the electrosurgical electrode 1 Electrode 28 is removable from shaft 126 and can be replaced with another electrosurgical electrode 128. Yes, it is possible. In other embodiments, the electrosurgical electrode 128 is connected to another The electrosurgical electrode 128 is permanently fixed to the shaft 126 so that it cannot be replaced. It is possible.

[0115] In Figures 14-15, the shaft 126 consists of a conductive portion 126C and an insulating portion 1 Includes 26D. As described above, the electrosurgical electrode 128 has a conductive portion 12 of the shaft 126. It can extend from 6C. The insulating portion 126D of the shaft 126 is an electrosurgical electric Three A bu structure can be formed. In this arrangement, the insulating portion 126D reduces arc discharge. To help reduce and / or supply electrosurgical energy to the electrosurgical electrode 128 This can help. Additionally, shaft 126 reduces arc discharge and / or Shaft 126 helps to supply electrosurgical energy to the electrosurgical electrode 128. The remaining conductive portion 126C (for example, covered by the insulating portion 126D of the shaft 126) A layer of insulating material 126E (e.g., heat shrink material) covering the unbroken portion It can include.

[0116] Referring to Figure 16, here is a view of the sha in one embodiment along the longitudinal axis 1482. An enlarged view of the cross-section of the distal end 126B of the tube 126 and the electrosurgical electrode 128 is shown. As shown in Figure 16, the distal portion 128A of the electrosurgical electrode 128 is used to electrosurgically treat tissue. A working end configured to apply energy can be defined. Electrosurgical electrodes The proximal portion 128B of 128 is a first leg extending from the distal end 126B of the shaft 126. 1684A and a second leg 1 extending from the distal end of the conductive portion 126C of the shaft 126 It can include 684B.

[0117] In Figure 16, the first leg portion 1684A and the second leg portion 1684B are connected to shaft 12 They face each other diametrically along the circumference of the distal end 126B of 6. In addition, electrical The proximal surface 1685 of the proximal portion 128B of the surgical electrode 128 is the proximal surface 168 A gap 1686 is defined between 5 and the plane 1687 at the most distal end of shaft 126. As such, it tapers towards the central axis of the shaft 126 along the distal direction. This is possible. The gap 1686 allows for airflow at the distal end 126B of the shaft 126. It can help improve suction.

[0118] Additionally, as shown in Figure 16, the sleeve structure of the insulating portion 126D is an optical lens It can extend around assembly 142. The sleeve structure is made of an optically opaque material. It may be so. In order to increase the intensity of the light emitted from the optical lens assembly 142, At least a portion of each distal transmission surface of the lens assembly 142 is an insulating portion 12 The 6D sleeve structure can extend to a position distal to its most distal end.

[0119] Referring again to Figure 15, the shaft 126 is the handle 124 (as shown in Figure 14) (na) Housing extending along the handle 124 in a direction parallel to the longitudinal axis 1482 It may include an electrical contact 1570 that engages with the conductor 134. While the shaft 126 moves telescopically relative to the handle 124, the housing conductor 1 It can be configured to remain engaged with 34. For example, electrical contact 1570 is The electrical contact 1570 moves with the shaft 126 relative to the handle 124. It is fixedly connected to shaft 126. In this arrangement, electrical contact 1570 is connected to shaft In response to the axial movement of the to 126 relative to the handle 124, the electrical contact 1570 While sliding along the housing conductor 134, it continuously engages with the housing conductor 134 and It can be electrically coupled.

[0120] Additionally, the electrical contact 1570 is connected to the shaft of the handle 124. The housing conductor 134 is engaged with the to 126 and the electrosurgical electrode 128 at all rotational positions. It extends along the circumference of the shaft 126 so that it can remain attached. Yes, it is possible. This allows the electrical contact 1570 to connect to the electrosurgical electrode 128 on the handle 124. At any rotational position and / or any axial position, the electrosurgical electrode 128 is subjected to electrical current. This makes it easier to supply qi-based surgical energy.

[0121] In one embodiment, the shaft 126 and the electrosurgical electrode 128 are relative to the handle 124. This allows for rotation greater than 360 degrees. In this embodiment, electrical contacts 1570 can extend throughout the shaft 126. In this embodiment, the shaft 126 and the electrosurgical electrode 128 are 3 in relation to the handle 124. It can be made possible to rotate only less than 60 degrees. In such an embodiment, the electrical contact 15 70 is such that the shaft 126 and the electrosurgical electrode 128 are positioned relative to the handle 124. The space between the shaft 126 and the housing conductor 134 over the entire range of rotational positions over which it is possible Extending over at least a portion of the circumference of shaft 126 sufficient to maintain electrical coupling It is possible to do so.

[0122] As described above, the electrosurgical electrode 128 extends from the distal end of the shaft 126 to the proximal portion 128B and distal end having a working end configured to apply electrosurgical energy to tissue It may include part 128A. In Figures 14 to 16, the far side of the electrosurgical electrode 128 The central axis of section 128A and the central axis of the smoke exhaust channel 148 lie on the same line. In this arrangement, the smoke exhaust channel 148 is substantially aligned along the periphery of the electrosurgical electrode 128. It can have a fixed size. This is relative at each point around the electrosurgical electrode 128. It can help provide a relatively constant suction. However, in other embodiments... In this configuration, the central axes of the electrosurgical electrode 128 and the shaft 126 are offset from each other. They can be parallel and parallel.

[0123] Additionally, as shown in Figures 14 to 16, the smoke exhaust channel 148 is located in the smoke exhaust channel 14 Any other It is possible to define the space lacking the structure of this. This is the electrosurgical electrode 128 and / or This is compared to other embodiments in which other components are located in the smoke exhaust channel 148. , internally placed in a relatively limited size to enhance suction through the exhaust channel 148 This can provide a way to use the T1468 more efficiently.

[0124] Additionally, as described above, the smoke exhaust channel 148 connects to the shaft 126 and the electrosurgical electrode. Rotate the handle 124 so that 128 is rotatable relative to the smoke exhaust channel 148. It can be fixed in a direction. Figures 17-18 show the exhaust channel 148 and shank according to one embodiment. The flute 126 is shown. As shown in Figures 15 and 17-18, the flue channel 148 At least in part, the shaft 126 and the electrosurgical electrode 128 are relative to the handle 124. To prevent the smoke exhaust channel 148 from rotating relative to the handle 124 while it is rotating, a non-circular shape is used. It can have a shape.

[0125] For example, the proximal end 148A of the smoke exhaust channel 148 corresponds to the handle 124 It may include a non-rotating fitting configured to engage with the shape structure, The fitting may have a non-circular cross-sectional shape. See Figures 15 and 17. For example, the proximal end 148A of the smoke exhaust channel 148 is connected to the handle of the smoke exhaust channel 148. To prevent rotation between the handle 124 and the handle 124, a hexagonal socket is formed on the inner wall of the handle 124. It has a hexagonal feature that engages with the net. Additionally, as shown in Figure 18, the exhaust channel To provide rotation of shaft 126 relative to 148, shaft 126 and smoke exhaust channel 1 A gap can be defined between 48 and this point.

[0126] As shown in Figure 17, the non-rotating fitting at the proximal end 148A of the smoke exhaust channel 148 The fitting is located near the non-rotating fitting, in the body 148C of the exhaust channel 148. It may include a through bore 1774 having a cross-sectional area smaller than the cross-sectional area of ​​the through bore 1. The relatively smaller size of 774 allows smoke to exit from the proximal end 148A of the smoke exhaust channel 148. This can help direct the smoke into a relatively smaller volume of space. This is advantageous because it exposes the electrical components in the internal bore 125 of the handle 124 to smoke. This can help reduce or prevent it.

[0127] Figure 19 shows a light source 140 in a smoke exhaust channel 148 according to one embodiment, and Figures 5A to 5A. Partial assembly of optical lens assembly 142 and heat sink 1580 Figure 20 shows an exploded view. Figure 20 shows the optical lens assembly 142 shown in Figures 5A and 5B. The assembly of the electrosurgical electrode 128 is shown.

[0128] As shown in Figures 15-16 and 19-20, the electrosurgical device 112 is housed in the house. The shaft 126 of the ring 123 includes a light source 140 and an optical lens assembly 142. This is possible. As described above, the light source 140 emits light into the optical lens assembly 142. The optical lens assembly 142 is configured to emit light distal to the light source 140. It is configured to transmit light in that direction and emit it from the distal end 126B of the shaft 126. Yes, they are.

[0129] As shown in Figure 20, the electrosurgical electrode 128 is connected to the proximal end of the electrosurgical electrode 128. It has a longitudinal axis 2031 extending between the distal end of the surgical electrode 128 and the light source 140. They are arranged circumferentially around the longitudinal axis 2031 of the electrosurgical electrode 128. As shown in Figure 20, the lens aperture 411 is aligned with the longitudinal axis 20 of the electrosurgical electrode 128. It can have a central axis that lies on the same line as 31. The light source 140 is connected to the electrosurgical electrode 128. Placing it around the electrosurgical electrode 128 helps to disperse the light all around. This allows for the electrosurgical electrode 128 and / or mark to be attached to the handle 124. To reduce shadows and increase the size of the electrosurgical device 112 at all rotational alignment positions relative to the target tissue. It can help provide uniform lighting.

[0130] Additionally, the smoke exhaust channel 148 is located at the lens aperture 4 in the optical lens assembly 142. 11 and LED PCB 407 extend through PCB opening 409 This helps to position the exhaust channel 148 in the center of the shaft 126. (For example, the central axis of the smoke exhaust channel 148 and the central axis of the shaft 126 are the same.) (This can be done along a line), which can increase suction at the surgical site. In the arrangement, the electrosurgical device 112 provides illumination and suction around the electrosurgical electrode 128. It can be provided. Furthermore, the optical lens assembly 142 in Figures 3 and 5A to 5B Integrating this into the array improves the quality of illumination and the size of the distal end of the electrosurgical unit. This can reduce the risk and improve visibility to the surgical site.

[0131] In one embodiment, the light source 140, the optical lens assembly 142 and / or heat shield Link 1580 can be fixedly attached to handle 124. In this arrangement, The shaft 126 and electrosurgical electrode 128 are connected to the light source 140 and optical lens assembly 142. and / or can rotate around the heatsink 1580. For example, light source 14 0. The optical lens assembly 142 and / or heatsink 1580 are located on shaft 12 6 and the electrosurgical electrode 128 rotate relative to the handle 124 The light source 140, optical lens assembly 142 and / or heat sink 1580 In order to prevent rotation, the non-circular shape of the body 148C of the exhaust channel 148 engages with the body 148C. It can have a non-circular shape. In Figures 19 to 20, the non-circular shape is an ellipse. It is the shape. However, the light source 140, optical lens assembly 142, heat sink 15 80 and / or smoke exhaust channel 148 may have other non-circular shapes in other embodiments. It can have.

[0132] Additionally, in this array, the light source 140, the optical lens assembly 142 and the heat The sink 1580 can be telescopically moved relative to the handle 124 together with the shaft 126. It can be made to move. As described above, the housing conductor 134 and the shaft conductor 136 During such telescopic movement, the light source 140 is electrically coupled to the DC power supply 144. It can provide that. As shown in Figure 19, shaft 126 is shaft 1 While 26 moves axially telescopically relative to handle 124, Positive-photoconductor 1536A and negative-photoconductor, which slidably engage with the corresponding conductor in the above. It may include body 1536B.

[0133] Referring now to Figure 21, the optical lens assembly 14 shown in Figure 3 according to one embodiment A cross-sectional view of the optical component 301 of 2 is shown. As shown in Figure 21, the optical lens A Swertia japonica 142 includes a proximal reflective surface 303 and a distal transmissive surface 305 having an aspherical shape. Additionally, Figure 21 shows the cavity 41 of the optical component 301 at the proximal end 142A. Figure 21 shows the light source 140 housed in 5. Figure 21 further shows how the light rays propagate to the distal transmission surface 305. When the light is emitted by the light source 140, it is reflected and collimated by the proximal reflecting surface 303. The ray trajectory is shown, illustrating an example of the emitted light ray.

[0134] Figure 22 shows an exemplary light for the optical lens assembly 142 shown in Figures 4A-4B. Figure 23 shows the output pattern, and Figure 23 shows the optical lens shown in Figures 5A to 5B according to the example. An exemplary optical output pattern for assembly 142 is shown.

[0135] Referring now to Figure 24, the process 2400 for operating the electrosurgical apparatus according to the embodiment A flowchart is shown. As shown in Figure 24, process 24 is block 24 10 includes providing an electrosurgical device. The electrosurgical device has a proximal end and a distal end The housing may include an end. The electrosurgical device may have a distal end of the housing or It may also include electrosurgical electrodes extending distally and multiple light sources in the housing. Multiple light sources can be configured to generate light.

[0136] In addition, the electrosurgical device includes an optical lens assembly having a proximal end and a distal end. It may include: (i) the distal end of the optical lens assembly (ii) are joined to each other at the proximal end of the optical lens assembly, Furthermore, it may include multiple optical components. Each optical component is a light source. It is optically coupled to the light source. Each optical component is optically coupled to the optical component. The proximal reflective surface extending distally from each light source and the distal end of the optical lens assembly It includes a distal transmission surface. The proximal reflection surface emits light from each light source toward the distal end. It is configured to reflect the emitted light. The proximal reflecting surface reflects the light from the proximal reflecting surface. It can have an aspherical shape configured to substantially collimate the incoming light. The distal transmission surface is configured to output light distally from the optical components.

[0137] In block 2412, process 2400 emits light from multiple light sources. This includes the following. After emitting light in block 2412, process 2400 proceeds to block 2 In 414, (i) light is reflected by the proximal reflecting surface of the optical component in block 2416. (ii) Block 2418 In this configuration, by outputting light in the distal direction through the distal transmission surface of the optical component, each light This includes transmitting light through the structural components.

[0138] Figures 25 to 30 show additional embodiments of process 2400 according to another embodiment. As shown, process 2400 electrosurgically applies electrosurgical electrodes in block 2420. It may also include supplying energy. In one embodiment, block 2420 In Block 2412, supplying electrosurgical energy to the electrosurgical electrodes is done in Block 2412. This can be done while emitting light.

[0139] As shown in Figure 26, in block 2416, light is reflected by the proximal reflecting surface. This may include reflecting light by internal total internal reflection in block 2422. In the embodiment shown in Figure 26, the proximal reflecting surface is an internal total internal reflection (TIR) ​​reflector. It is possible.

[0140] In the embodiment shown in Figure 27, at the proximal end of the optical lens assembly, each optical The constituent elements define a cavity, and within this cavity, each light source is... Several light sources are positioned distal to the most proximal surface of the optical lens assembly. (Figure) As shown in 27, the emission of light in block 2412 is in block 2424 In this case, light from multiple light sources is received at the distal location of the most proximal surface of the optical lens assembly. It may include releasing.

[0141] As shown in Figure 28, the emission of light in block 2412 is in block 24 In 26, the emission of light from multiple light sources across the gap to the proximal reflecting surface is included. can.

[0142] As shown in Figure 29, the emission of light in block 2412 is in block 24 In 28, multiple light sources are equally spaced around the longitudinal axis of the electrosurgical electrode. It may include emitting light.

[0143] As shown in Figure 30, in block 2418, the distal transmission surface directs light distally. Outputting light in block 2430 involves passing light through the aspherical lens on each distal transmission surface. It can include spending time.

[0144] As shown in Figure 31, in block 2418, the distal transmission surface directs light distally. Outputting light in block 2432 is achieved by passing light through the Fresnel lens on each distal transmission surface. It may include transparency.

[0145] In the embodiment shown in Figure 32, multiple light sources are coupled to a printed circuit board (PCB). It can include multiple light-emitting diodes (LEDs). Also, the PCB has a PCB aperture. It may include a ring having a PCB opening and The optical lens assembly may include a suction tube extending through the aperture. The source can be positioned around the suction tube. Distal end of optical lens assembly It can extend around the suction tube. As shown in Figure 32, process Block 2400 may also include applying a suction force to the suction tube in block 2434. .

[0146] As shown in Figure 33, outputting light in block 2418 is done in block 24 In 36, on the plane distal to the distal end of the electrosurgical electrode, the optical lens assembly The light emitted by the bri has a substantially uniform intensity at every point in space. This may include outputting light in that manner.

[0147] As shown in Figure 34, outputting light in block 2418 is done in block 24 In 38, the light defines a light pattern on a plane located distal to the distal end, and the light pattern The light intensity at the weakest part of the light pattern is less than the light intensity at the strongest part of the light pattern. It may include outputting light to have an intensity of at least 50 percent. .

[0148] The descriptions of different advantageous sequences are presented for illustrative and explanatory purposes and are not comprehensive. It is not intended to be limited to the embodiments in the disclosed form. Corrections and modifications will be apparent to those skilled in the art. Furthermore, different advantageous embodiments are also described. Different advantages may be described compared to the favorable embodiments. One or more selected The examples illustrate the principles and practical applications of the examples, and how they are suitable for specific conceivable uses. Others skilled in the art can understand the disclosure for various embodiments with various modifications. They are selected and explained in this manner.

[0149] Furthermore, any optional feature of the described variations of the present invention may be shown and claimed independently or in combination with any one or more of the features described herein. Similarly, referring to a singular item implies the possibility of multiple identical items existing. More specifically, where used herein and in the appended claims, the singular “a,” “and,” “the said,” and “the” imply multiple references unless the context clearly indicates otherwise. Moreover, it should be noted that claims may be written to exclude any optional elements. Thus, this statement is intended to function as an antecedent for the use of such exclusive terms as “solely,” “only,” or “negative” limitations relating to the reference of claim elements. Unless otherwise specified herein, all technical and chemical terms used herein have the same meaning as commonly understood by those skilled in the art to which the invention pertains. The scope of this application is not limited by the subject specification, but only by the simple meaning of the claim terms adopted. Furthermore, the technical concepts that can be understood from the above embodiments are described below. [Aspect 1] It is an electrosurgical device, A housing having a proximal end and a distal end, An electrosurgical electrode extending distally from the distal end of the housing, Multiple light sources in the housing, wherein multiple light sources are configured to generate light, An optical lens assembly having a proximal end and a distal end, Equipped with, The optical lens assembly includes a plurality of optical components that are (i) coupled to each other at the distal end of the optical lens assembly and (ii) spaced apart from each other at the proximal end of the optical lens assembly. Each optical component is optically coupled to each of the light sources of the plurality of light sources. Each optical component, A proximal reflecting surface that is optically coupled to the optical component and extends distally from each of the light sources, wherein the proximal reflecting surface is configured to reflect light emitted toward the distal end by each of the light sources, and the proximal reflecting surface has an aspherical shape configured to substantially collimate the light reflected by the proximal reflecting surface, The distal transmission surface at the distal end of the optical lens assembly, wherein the distal transmission surface is configured to output light from the optical component in the distal direction, An electrosurgical device equipped with the following features. [Aspect 2] The electrosurgical apparatus according to embodiment 1, wherein the proximal reflective surface includes a total internal reflection (TIR) ​​reflector. [Aspect 3] The electrosurgical apparatus according to embodiment 2, wherein the proximal reflective surface and the housing are spaced apart from each other such that a gap surrounds the proximal reflective surface. [Aspect 4] The electrosurgical apparatus according to any one of embodiments 1 to 3, wherein at the proximal end of the optical lens assembly, each optical component defines a cavity in which each of the plurality of light sources is positioned such that the plurality of light sources are distal to the most proximal surface of the optical lens assembly. [Aspect 5] The electrosurgical apparatus according to embodiment 4, wherein each optical component is separated from the respective light source to which it is optically coupled by an air gap. [Aspect 6] The electrosurgical electrode has a longitudinal axis extending between the proximal end and the distal end of the electrosurgical electrode, The electrosurgical apparatus according to any one of embodiments 1 to 5, wherein the plurality of light sources are arranged circumferentially around the longitudinal axis of the electrosurgical electrode. [Aspect 7] The electrosurgical apparatus according to embodiment 6, wherein the plurality of light sources consist of three light sources arranged at equal intervals around the longitudinal axis of the electrosurgical electrode. [Aspect 8] The electrosurgical apparatus according to embodiment 6, wherein the optical lens assembly defines an aperture having a central axis that is collinear with the longitudinal axis of the electrosurgical electrode. [Aspect 9] An electrosurgical apparatus according to any one of embodiments 1 to 8, wherein each distal transmission surface is an aspherical lens. [Aspect 10] An electrosurgical apparatus according to any one of embodiments 1 to 8, wherein each distal transmission surface is a Fresnel lens. [Aspect 11] The Fresnel lens has a flat surface at its distal end, The flat surface at the distal end defines a plurality of concentric rings, Each ring has its own optical properties. The electrosurgical apparatus according to embodiment 10, wherein the optical properties of the plurality of rings differ from one another such that the flat surface at the distal end transmits light in a manner that approximates an aspherical lens. [Aspect 12] The electrosurgical apparatus according to embodiment 11, wherein the flat surface at the distal end includes a plurality of lenslets. [Aspect 13] The optical lens assembly comprises an inner surface and an outer surface, The aforementioned inner surface defines a through hole, The electrosurgical apparatus according to any one of embodiments 1 to 12, wherein, between the proximal reflective surface and the distal transmitting surface, the cross-section of the optical lens assembly has a non-circular shape on the inner surface and a circular shape on the outer surface. [Aspect 14] The electrosurgical apparatus according to embodiment 13, wherein the non-circular shape is elliptical. [Aspect 15] The electrosurgical apparatus according to any one of embodiments 1 to 14, wherein less than approximately 10% of the light from one optical lens component among the plurality of optical components passes through an adjacent optical lens component among the plurality of optical components. [Aspect 16] The electrosurgical apparatus according to embodiment 15, wherein a portion of the light emitted by one of the plurality of optical components overlaps with a portion of the light emitted by another of the plurality of optical components. [Aspect 17] The aforementioned housing, A handle having a proximal end and a distal end, A shaft extending from the distal end of the housing, Equipped with, The electrosurgical apparatus according to any one of embodiments 1 to 16, wherein the electrosurgical electrode extends from the distal end of the shaft and the plurality of light sources are located within the shaft. [Aspect 18] The shaft comprises a tube and a sleeve structure extending distally from the tube. The sleeve structure extends around the optical lens assembly, The electrosurgical apparatus according to embodiment 17, wherein each distal penetrating surface is distal to the most distal end of the sleeve structure. [Aspect 19] The plurality of light sources include a plurality of light-emitting diodes (LEDs) coupled to a printed circuit board (PCB), The electrosurgical apparatus according to embodiment 17, wherein the PCB includes a ring having a PCB opening. [Aspect 20] The electrosurgical apparatus according to embodiment 19, wherein each LED comprises a die and a protective layer. [Aspect 21] The electrosurgical apparatus according to embodiment 19, wherein each LED has a diameter of approximately 1 millimeter (mm) to approximately 2 mm. [Aspect 22] The system further comprises a suction tube extending through the PCB opening in the PCB and the opening in the optical lens assembly, The aforementioned multiple light sources are arranged around the suction tube, The electrosurgical apparatus according to embodiment 19, wherein the distal end of the optical lens assembly extends around the suction tube. [Aspect 23] The electrosurgical apparatus according to any one of embodiments 1 to 22, wherein, in a plane located distal to the distal end of the electrosurgical electrode, the light emitted by the optical lens assembly has substantially uniform light intensity at every point in space. [Aspect 24] The light emitted by the optical lens assembly defines a light pattern on the plane located distal to the distal end. The electrosurgical apparatus according to embodiment 23, wherein the intensity of light in the weakest part of the light pattern is at least 50 percent of the intensity of light in the strongest part of the light pattern. [Pattern 25] A housing having a proximal end and a distal end, An electrosurgical electrode extending distally from the distal end of the housing, Multiple light sources in the housing, wherein multiple light sources are configured to generate light, An optical lens assembly having a proximal end and a distal end, Equipped with, The optical lens assembly includes a plurality of optical components that are (i) coupled to each other at the distal end of the optical lens assembly and (ii) spaced apart from each other at the proximal end of the optical lens assembly. Each optical component is optically coupled to each of the light sources of the plurality of light sources. Each optical component, (a) A proximal reflecting surface that is optically coupled to the optical component and extends distally from each of the light sources, wherein the proximal reflecting surface is configured to reflect light emitted by each of the light sources toward the distal end, and the proximal reflecting surface has an aspherical shape configured to substantially collide the light reflected by the proximal reflecting surface, (b) A distal transmission surface at the distal end of the optical lens assembly, wherein the distal transmission surface is configured to output light from the optical component in the distal direction, A method using an electrosurgical device equipped with, To provide the aforementioned electrosurgical device, Emitting light from the aforementioned multiple light sources, After emitting the aforementioned light, The light is reflected toward the distal end by the proximal reflecting surface of the optical component in a substantially collimated state, and The distal transmission surface of the optical component outputs the light in the distal direction. By doing so, the light is transmitted through each optical component, Methods that include... [Aspect 26] The method according to embodiment 25, further comprising supplying electrosurgical energy to the electrosurgical electrode. [Aspect 27] The method according to embodiment 26, wherein the supply of electrosurgical energy to the electrosurgical electrode is performed while emitting the light. [Aspect 28] The aforementioned proximal reflecting surface includes an internal total internal reflection (TIR) ​​reflector, The method according to any one of embodiments 25 to 27, wherein the reflection of the light by the proximal reflecting surface includes the reflection of the light by internal total internal reflection. [Aspect 29] At the proximal end of the optical lens assembly, each optical component defines a cavity in which each of the multiple light sources is positioned such that the respective light sources are distal to the most proximal surface of the optical lens assembly. The method according to any one of embodiments 25 to 28, wherein the emission of the light includes emitting light from the plurality of light sources at locations distal to the most proximal surface of the optical lens assembly. [Aspect 30] The method according to embodiment 29, wherein the emission of the light includes emitting the light from the plurality of light sources across the gap to the proximal reflecting surface. [Aspect 31] The method according to any one of embodiments 25 to 30, wherein the emission of the light includes emitting the light from a plurality of light sources placed at equal intervals around the longitudinal axis of the electrosurgical electrode. [Aspect 32] The method according to any one of embodiments 25 to 31, wherein the output of the light in the distal direction by the distal transmitting surface includes transmitting the light through an aspherical lens of each distal transmitting surface. [Aspect 33] The method according to any one of embodiments 25 to 31, wherein the output of the light in the distal direction by the distal transmitting surface includes transmitting the light through the Fresnel lens of each distal transmitting surface. [Aspect 34] The plurality of light sources include a plurality of light-emitting diodes (LEDs) coupled to a printed circuit board (PCB), The PCB includes a ring having a PCB opening, and the electrosurgical apparatus includes a suction tube extending through the PCB opening in the PCB and the opening in the electro-optic lens assembly. The aforementioned multiple light sources are arranged around the suction tube, The distal end of the optical lens assembly extends around the suction tube, The method according to any one of embodiments 25 to 33, further comprising applying a suction force to the suction tube. [Aspect 35] The method according to any one of embodiments 25 to 34, wherein the output of the light is such that the light emitted by the optical lens assembly has substantially uniform light intensity at each point in space on a plane located distal to the distal end of the electrosurgical electrode. [Aspect 36] The method according to embodiment 35, wherein the output of the light includes outputting the light such that the light defines a light pattern in the plane located distal to the distal end, and the intensity of the light in the weakest part of the light pattern is at least 50 percent of the intensity of the light in the strongest part of the light pattern.

Claims

1. It is an electrosurgical device, A housing having a proximal end and a distal end, An electrosurgical electrode extending distally from the distal end of the housing, Multiple light sources in the housing, wherein multiple light sources are configured to generate light, An optical lens assembly having a proximal end and a distal end, Equipped with, The optical lens assembly includes a plurality of optical components, (i) coupled to each other at the distal end of the optical lens assembly, and (ii) spaced apart from each other at the proximal end of the optical lens assembly. Each optical component is optically coupled to each of the light sources of the plurality of light sources. Each optical component, A proximal reflecting surface that is optically coupled to the optical component and extends distally from each of the light sources, wherein the proximal reflecting surface is configured to reflect light emitted toward the distal end by each of the light sources, and the proximal reflecting surface has an aspherical shape configured to substantially collimate the light reflected by the proximal reflecting surface, The distal transmission surface at the distal end of the optical lens assembly, wherein the distal transmission surface is configured to output light from the optical component in the distal direction, An electrosurgical device equipped with the following features.

2. The electrosurgical apparatus according to claim 1, wherein the proximal reflective surface includes an internal total internal reflection (TIR) ​​reflector.

3. The electrosurgical apparatus according to claim 2, wherein the proximal reflective surface and the housing are spaced apart from each other such that a gap surrounds the proximal reflective surface.

4. The electrosurgical apparatus according to any one of claims 1 to 3, wherein each optical component is separated from each of the light sources that are optically coupled to the optical component by an air gap.

5. The electrosurgical electrode has a longitudinal axis extending between the proximal end and the distal end of the electrosurgical electrode, The plurality of light sources are arranged circumferentially around the longitudinal axis of the electrosurgical electrode, The optical lens assembly defines an aperture having a central axis that lies collinear with the longitudinal axis of the electrosurgical electrode. The electrosurgical apparatus according to any one of claims 1 to 4.

6. The electrosurgical apparatus according to any one of claims 1 to 5, wherein each distal transmission surface is an aspherical lens.

7. Each distal transmission surface is a Fresnel lens, The Fresnel lens has a flat surface at its distal end, The flat surface at the distal end defines a plurality of concentric rings, Each ring has its own optical properties. The optical properties of the plurality of rings are different from each other such that the flat surface at the distal end transmits light in a manner approximating an aspherical lens. The electrosurgical apparatus according to any one of claims 1 to 5.

8. Less than 10% of the light from one optical lens component among the plurality of optical components passes through an adjacent optical lens component among the plurality of optical components, A portion of the light emitted by one of the plurality of optical components overlaps with a portion of the light emitted by another of the plurality of optical components. The electrosurgical apparatus according to any one of claims 1 to 7.

9. The plurality of light sources include a plurality of light-emitting diodes (LEDs) coupled to a printed circuit board (PCB), The PCB includes a ring having a PCB opening, Each LED comprises a die and a protective layer. The electrosurgical apparatus according to any one of claims 1 to 8.

10. In a plane located distal to the distal end of the electrosurgical electrode, the light emitted by the optical lens assembly has a substantially uniform light intensity at each point in space. The light emitted by the optical lens assembly defines a light pattern on the plane located distal to the distal end. The light intensity at the weakest part of the light pattern is at least 50 percent of the light intensity at the strongest part of the light pattern. The electrosurgical apparatus according to any one of claims 1 to 9.

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