Electrosurgical device with illumination and smoke evacuation features

Abstract

To provide an electrosurgical device and method with a telescopically adjustable electrosurgical electrode.SOLUTION: An electrosurgical device 112 includes a housing 124 defining an interior bore. The electrosurgical device also includes a shaft 126 telescopically moveable in the interior bore of the housing. The shaft includes an optical waveguide 142 at a distal end of the shaft, and a smoke evacuation channel 148 circumferentially surrounding the optical waveguide at the distal end of the shaft. The electrosurgical device also includes an electrosurgical electrode 128 coupled to the shaft.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to electrosurgical devices.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of U.S. Provisional Patent Application No. 62 / 976,744, filed February 14, 2020. No. 62 / 934,512, filed November 12, 2019. The benefit of which is claimed, the contents of which are hereby incorporated by reference in their entirety. do.

[0003] The present disclosure relates generally to methods and apparatus for transmitting electrical energy, and more particularly to The present invention relates to an electrosurgical device and method that provides retractable adjustment of an electrosurgical electrode. [Background technology]

[0004] Electrosurgery involves the application of radio frequency (RF) current (electrosurgical) to biological tissue. (also called electrical energy) to cut, coagulate, or otherwise damage biological tissue during electrosurgical procedures. Specifically, the electrosurgical generator generates and directs current to the active An electrode (the working electrode) is supplied, which applies the current (and therefore the power) to the tissue. The current passes through the tissue and returns to the generator via a return electrode (also called a "dispersive electrode"). As electrical current passes through tissue, the tissue impedance converts a portion of the current into heat energy. (e.g., by the principle of resistive heating), which increases the temperature of the tissue and induces changes to the tissue ( For example, tissue may be cut, coagulated, ablated (e.g., excised or cauterized), and / or sealed ( Induce (block) Summary of the Invention

[0005] The novel features believed characteristic of the illustrative embodiments are set forth in the appended claims. However, the method of use, further objects and explanations thereof are set forth herein in the accompanying drawings. By reference to the following detailed description of exemplary embodiments of the present disclosure, when read in conjunction with: An exemplary embodiment will be best understood. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a simplified block diagram of an electrosurgical system, according to one example. [Figure 2] 1 is a cross-sectional view of an electrosurgical device, according to one example. [Figure 3] 1 is a cross-sectional view of an electrosurgical device, according to one example. [Figure 4] 1 is a perspective view of an electrosurgical device, according to one example. [Figure 5] 1 is a diagram of a distal end of an electrosurgical device, according to one example. [Figure 6] FIG. 10 is a view of the distal end of an electrosurgical device, according to another example. [Figure 7A] FIG. 10 is a perspective view of an electrosurgical device according to another example. [Figure 7B] 7B is a perspective view of a distal portion of the electrosurgical device shown in FIG. 7A, according to one example. [Figure 7C] FIG. 7B is a side view of the electrosurgical device shown in FIG. 7A, according to one example. [Figure 8A] FIG. 10 is a perspective view of a distal end portion of a shaft of an electrosurgical device, according to an example. [Figure 8B] 8B is a side view of the distal end portion shown in FIG. 8A, according to an example. [Figure 9A] FIG. 10 is a perspective view of an electrosurgical device according to another example. [Figure 9B] 9B is a perspective view of the distal end of the shaft of the electrosurgical device shown in FIG. 9A, according to one example. [Figure 9C] FIG. 9C is a side view of the distal end of the shaft shown in FIG. 9B, according to an example. [Figure 9D] 9B is a cross-sectional view of the electrosurgical device shown in FIG. 9A, according to one example. [Figure 9E] 9B is an exploded view of the electrosurgical device shown in FIG. 9A, according to one example. [Figure 10A] FIG. 10 is a perspective view of an electrosurgical device 112 according to another example. [Figure 10B] 10B is a perspective view of the distal end of the shaft of the electrosurgical device shown in FIG. 10A, according to one example. [Figure 10C] FIG. 10C is a side view of the distal end of the shaft of the electrosurgical device shown in FIG. 10B, according to one example. [Figure 10D] FIG. 10C is another side view of the distal end of the shaft of the electrosurgical device shown in FIG. 10B, according to one example. [Figure 10E] FIG. 10B is a diagram of a light-emitting diode printed circuit board of the electrosurgical device shown in FIG. 10A, according to an example. [Figure 10F] 10B is a cross-sectional view of the electrosurgical device shown in FIG. 10A, according to one example. [Figure 11] FIG. 10B is a diagram of a light-emitting diode printed circuit board of the electrosurgical device shown in FIG. 10A, according to an example. DETAILED DESCRIPTION OF THE INVENTION

[0007] Here, the disclosed embodiments are not all of the disclosed embodiments, but some of them are shown. The present invention will be more fully described with reference to the accompanying drawings, in which: Although examples may be illustrated, they should not be construed as being limited to the examples set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the disclosure to those skilled in the art. It is explained so as to be completely conveyed.

[0008] The terms "about" or "substantially" are used to describe amounts or measurements given herein. The characteristics, parameters, or values ​​described with reference to the present invention may not be exactly achieved, but may be, for example, within the scope of the present invention. deviations or variations, including tolerances, measurement errors, measurement precision limits, and other factors known to those skilled in the art. The amount of the additive may be increased in an amount that does not interfere with the effect that the property is intended to provide.

[0009] As mentioned above, electrosurgical devices deliver electrosurgical energy from electrosurgical electrodes to tissue. Electrical energy supplied by an electrosurgical generator may be used to apply the Therefore, electrosurgical devices generally have one or more electrical conductors that transmit electrosurgical energy. It may include a housing arranged to supply the electrosurgical electrodes. The electrosurgical device includes a shaft that is telescopically adjustable relative to the housing. and, the length of the electrosurgical device can be adjusted to treat target tissues of different sizes and / or shapes. This can help to adjust the

[0010] Referring now to Figure 1, an electrosurgical system 100 is shown, according to one example. As shown in FIG. 1, the electrosurgical system 100 includes an electrosurgical generator 110 and an electrosurgical power supply 112. The electrosurgical generator 110 includes a surgical device 112. Generally, the electrosurgical generator 110 is used to perform electrosurgical procedures on a patient. For example, the electrosurgical generator 11 may generate electrosurgical energy suitable for performing 0 converts system power into electrosurgical energy, e.g., radio frequency (RF) output power. The power converter circuit 114 may include a power converter circuit 114 that may include an external One or more electrical components that can control the voltage, current, and / or frequency of the therapeutic energy. The power supply may include components such as one or more transformers.

[0011] Among other examples, electrosurgical generator 110 receives one or more inputs from a user: and / or a user interface 116 that provides one or more outputs to a user. For example, the user interface 116 may include one or more buttons, one or more switch, one or more dials, one or more keypads, one or more touchpads The display may include a touch screen, and / or one or more display screens.

[0012] In one example, the user interface 116 may be configured to control multiple surgical modes of the electrosurgical generator 110. The surgical mode may be operable to select from among the surgical modes. , cutting mode, coagulation mode, ablation mode, and / or sealing mode. Combinations of these waveforms can also be formed to generate mixed modes. The surgical modes may correspond to different waveforms of electrosurgical energy. In an embodiment, the electrosurgical generator 110 may be configured to select a power source using the user interface 116. a waveform selected from a plurality of waveforms based at least in part on the selected surgical mode; The electrosurgical energy may be generated.

[0013] The electrosurgical generator 110 may be configured to deliver one or more of the electrosurgical energy and / or target tissue. The system may further include one or more sensors 118 that may sense multiple conditions. The sensor 118 may include one or more current sensors, one or more voltage sensors, and one or more and / or one or more bioimpedance sensors. Among other examples, electrosurgical generator 110 may additionally or alternatively provide a certain amount of electrosurgical power. energy (e.g., power) used and / or conditions sensed by the sensor 118. an electrical signal having a waveform selected from a plurality of waveforms based on one or more parameters; Surgical energy may be generated.

[0014] In some instances, the electrosurgical energy stimulates nerves and / or muscles near the target tissue. To reduce (avoid) this, frequencies above approximately 100 kilohertz (kHz) In another example, the electrosurgical energy may have a frequency between about 300 kHz and about 500 kHz. The frequency may be

[0015] In FIG. 1, electrosurgical generator 110 is shown as a 2. For example, the electrosurgical The device 112 can be coupled to a socket of the connector 120 of the electrosurgical generator 110. In this configuration, the electrosurgical generator 110 may include a power cord 122 having lugs. A connector 120 of the electrosurgical generator 110 and a power cord 122 of the electrosurgical device 112 Electrosurgical energy may be supplied to electrosurgical device 112 via a coupling between

[0016] As shown in FIG. 1, electrosurgical device 112 includes a housing defining a lumen 125. a housing 124; a shaft 126 extending distally from the housing 124; and an electrosurgical electrode 128 coupled to the housing 126. 4 allows the user to hold and manipulate the electrosurgical device 112 while performing the electrosurgical procedure. For example, the housing 124 may be configured to assist a user in using one hand. Assist in performing electrosurgical procedures by operating the electrosurgical device 112 using the In some embodiments, the housing 124 may have any suitable shape and / or size. 112 in the manner of a writing implement grip. and / or size (e.g., electrosurgical device 112 may be an electrosurgical pencil, obtain).

[0017] Further, for example, the housing 124 may be an electrical insulator (e.g., a plastic material). This may be constructed from one or more materials, which may be used to This may help isolate the user from the electrosurgical energy flowing through the device 112 .

[0018] In some embodiments, the shaft 126 may be fixedly coupled to the housing 124. In some embodiments, the shaft 126 is telescopic relative to the housing 124. For example, the shaft 126 may be defined by the housing 124. The shaft 126 is movable telescopically within the inner cavity (internal hole) and is connected to the housing 124. and the shaft 126 can extend proximally relative to the housing 124. and retractable (e.g., movable along the longitudinal axis of electrosurgical device 112). As mentioned above, electrosurgical electrode 128 is coupled to shaft 126 so that electrosurgical The surgical electrode 128 moves with the shaft 126 relative to the housing 124. This may provide for adjusting the length of the electrosurgical device 112, which may allow for multiple insertions within tissue. different depths (e.g., due to various anatomical shapes and / or patient sizes) and / or multiple It may be possible to assist in performing electrosurgery at a number of different angles.

[0019] In some examples, the shaft 126 may additionally or alternatively be a The electrosurgical electrode 1 may be rotatable about an axis of rotation parallel to the longitudinal axis. 28 may additionally or alternatively be rotatable relative to the shaft 126. The shaft 126 and / or electrosurgical electrode 128 that rotate relative to 124 The angle of the electrosurgical electrode 128 relative to one or more user input devices 130 of the device 112 In this configuration, for example, the user can adjust the degree of the surgical site where the operation is being performed. Based on the position, size, and / or shape, the electrosurgical electrode 128 is attached to the housing 124. While the finger is being rotated, the user holds the finger in a selected position from a plurality of positions for the finger. The housing 124 can be comfortably grasped in a position where the user can comfortably operate the user input device 130. do.

[0020] The user input device 130 may be a A number of surgical modes may be selected. For example, in some embodiments, a user input device The device 130 may be configured to select between a cutting surgical mode and a coagulation surgical mode. In response to actuation of the user input device 130 of the surgical device 112, the electrosurgical device 112: (i) a power level corresponding to the surgical mode selected via the user input device 130 and / or (ii) receiving electrosurgical energy having a waveform, The electrical signal may be supplied to the electrical electrode 128.

[0021] In FIG. 1, the electrosurgical device 112 is shown as comprising an electrosurgical generator 110. a plurality of electrodes 128 for assisting in delivering electrosurgical energy received from the For example, electrosurgical device 112 may include an electrosurgical energy a printer that can provide a circuit for conducting electrical current from the power cord 122 to the electrosurgical electrode 128; A printed circuit board 132 (e.g., a flexible printed circuit board) ), housing conductors 134, one or more conductive leads 136, and / or receptors Any one or more of the electrical components may be mounted in the housing 124. It can thus be placed in the defined lumen.

[0022] Among other examples, user input device 130 may include one or more buttons on the exterior surface of housing 124. Each button of the user input device 130 may include a plurality of switches on the printed circuit board 132. 138. The switch 138 and / or printed circuit board 132 may be configured to receive electrical power from the electrosurgical generator 110. The electrosurgical electrode 128 is operable to control the supply of electrosurgical energy to the electrosurgical electrode 128. For example, in one embodiment, when each button is operated (e.g., pressed), Each switch 138 associated with a button transmits a signal to the printed circuit board 132. The surgical generator 110 then transmits an output level corresponding to the surgical mode associated with the button. responsively supplying electrosurgical energy having a pulse and / or waveform to the electrosurgical generator 110; In another embodiment, the device can be operated by operating a button, thereby Activating the respective switch 138 associated with the button causes the switch 138 110. The button is then closed, completing the circuit to the electrosurgical generator 110 and activating the surgical mode associated with the button. Electrosurgical energy having a power level and / or waveform corresponding to the In some implementations of this embodiment, the printed circuit The substrate 132 may be omitted.

[0023] In both of the illustrated embodiments, the electrosurgical energy provided by the electrosurgical generator 110 The energy is generated by (i) the power cord 122, the printed circuit board 132, and / or the switch 13 8 to (ii) the electrosurgical electrode 128, housing conductors 134 and conductive leads 13 6. As shown in FIG. 1, the printed circuit board 132 may be The housing conductors 134 may be connected to the printed circuit board 132 and the conductors The conductive lead 136 may be coupled to the electrosurgical electrode 128 (receptacle). In this configuration, the housing conductors 134 are electrically Pneumatic surgical energy (supplied to housing conductors 134 via printed circuit board 132) The conductive lead 136 and the receptacle 137 are connected to the conductive lead 136. Electrosurgical energy may be conducted to electrosurgical electrodes 128 .

[0024] Generally, housing conductors 134 conduct electrosurgical energy to electrosurgical electrode 128. It may include one or more conductive elements that provide a conductive bus for supplying In an example, the housing conductors 134 may be formed in a spiral shape. The housing 124 is electrically isolated from the telescopic movement of the housing 124. The shaft 126, which retracts and / or extends the electrode 128, is connected to the housing conductor 1. The housing conductors 134 may be compressible and expandable so that the conductors 34 may be accommodated. In another example, the conductive leads 136 may include one or more wires. The conductive leads 136 may be formed by, for example, screen printing, sputtering, electroplating, or conductive coating. and / or one or more conductive traces formed by laser ablation. It may include.

[0025] Among other examples, conductive leads 136 extend from housing conductors 134 to electrosurgical electrode 12 8. In some examples, the conductive leads 136 may include one or more wires. In another example, the conductive leads 136 may be formed by, for example, screen printing, sputtering, electroplating, or the like. One or more layers formed by plating, conductive paint, and / or laser ablation The conductive leads 136 may include conductive traces. The conductive leads 136 are disposed within the internal conduits of the shaft 126. The outer surface of shaft 126 may be constructed from an electrical insulator. This may help reduce (prevent) the loss of electrosurgical energy up to pole 128 .

[0026] Receptacle 137 may couple electrosurgical electrode 128 to electrosurgical device 112 . By way of example, the receptacle 137 and the electrosurgical electrode 128 are connected to one another by a friction fit. Thus, the receptacle 137 and the electrosurgical electrode 128 may be configured to When the electrosurgical electrode 128 is inserted into the receptacle 137, the receptacle 137 and Electrosurgical electrodes 128 are provided with respective sizes and / or This allows the electrosurgical electrode 128 to be attached to the electrosurgical device 112. 128. The electrosurgical electrodes 128 are electrically connected to the The receptacle 137 and the electrosurgical electrode 112 may be interchangeable. 28 may be mechanically secured to ensure that the correct electrical connections are made. In this embodiment, the electrosurgical electrode 128 may be connected to another type of detachable connection (e.g., a by a removable connection (e.g., by welding and / or soldering) 137.

[0027] Among other examples, receptacle 137 may be used to connect electrosurgical equipment by electrosurgical generator 110. Electrosurgical electrode 128 can be electrically coupled to the electrosurgical energy supplied to 112. For example, the receptacle 137 may include conductive leads 136 (e.g., The electrode may be electrically coupled to the substrate (by a conductive material).

[0028] As shown in FIG. 1, electrosurgical device 112 is configured to emit light. The light source 140 may further include a light source 140. In the example of FIG. and transmits the light distally toward the surgical site using electrosurgical electrodes 128. and an optical waveguide 142 configured to illuminate the surgical site during electrosurgery. Among other examples, the light guide 142 may direct light distally via total internal reflection. For example, the light guide may include a coating and / or an air gap on the exterior surface of the light guide 142. In some embodiments, the optical waveguide 142 may be formed as a single, integral structure. do.

[0029] In another example, electrosurgical device 112 may omit optical waveguide 142 and transmit light through optical waveguide 142. Instead of transmitting light through a light source 140, light may be emitted directly from the light source 140 onto the surgical field. In another example, electrosurgical device 112 may include one or more optical waveguides in addition to or instead of optical waveguide 142. The optical fiber may include a plurality of optical fibers that direct the light emitted by the light source 140 in a distal direction. The radiation can be transmitted in a direction toward the surgical site.

[0030] In FIG. 1, the light source 140 is coupled to the shaft 126. Therefore, the light source 140 also It may move telescopically with the shaft 126 relative to the housing 124. However, In other examples, the light source 140 may be within the lumen of the housing 124 and / or may be The light source 140 may be coupled to an outer surface of the housing 124. By way of example, the light source 140 may be one or more light emitting diodes. LEDs (LEDs), organic light emitting diodes (OLEDs), optical fibers, non-fiber optical waveguides, and and / or lenses.

[0031] The optical waveguide 142 may be present at the distal end of the shaft 126. The pneumosurgical electrode 128 may extend from a central portion of the optical waveguide 142. 142 surrounds the periphery of the electrosurgical electrode 128 (e.g., surrounds the electrosurgical electrode 128). Surrounding the electrosurgical electrode 128 allows light to be emitted distally around all sides of the electrosurgical electrode 128. Reduces shadowing and improves electrical conductivity of the shaft 126 relative to the housing 124 and / or the electrical conductivity of the target tissue. Better illumination uniformity at all rotational positions of the surgical device 112 Support to provide.

[0032] In an embodiment including a light source 140, the user input device 130, the printed circuit board 132, the switch The switch 138, the housing conductors 134, and / or the conductive leads 136 may provide DC power. The light source 140 may further be supplied by a (DC) power supply 144. In one example, the DC power supply 144 may include: It may include a battery located in the housing 124 and / or a plug for the power cord 122. The pneumosurgical device 112 in FIG. 1 includes a DC power supply 144, which is In other instances, it may be separate and distinct from the electrosurgical device 112. For example, in another instance, The electrosurgical generator 110 may include a DC power supply 144 .

[0033] Additionally, in embodiments that include a light source 140, the user input device 130 may direct the light source 140 to emit light. In one example, the user input device 130 may be operable to cause an electrosurgical Independent control of light source 140, separate from the buttons that control the electrosurgical mode of device 112 In another example, the user input device 130 and the printed circuit board 132 may include a button. The operation of the button that controls the electrosurgical mode also controls the operation of the light source 140. (e.g., light source 140 may be configured to deliver electrosurgical energy to electrosurgical electrode 128 It operates automatically to emit light when the button is pressed to apply grease. (possibly).

[0034] As shown in FIG. 1, in response to a user input device 130 actuating a light source 140, In response, a DC power supply 144 provides power (e.g., DC voltage) to the light source 140 and to the printed circuit board. The electrical current may be supplied via the plate 132, the housing conductors 134, and / or the conductive leads 136. In this embodiment, one or more of the conductive elements of the housing conductors 134 are electrically Power may be supplied to the light source 140 from a DC power supply 144 and / or power may be transferred from the light source 140 to a DC power supply 144. Thus, the housing conductors 134 may be configured to provide additional or alternative In other words, the shaft 126 and the light source 140 move telescopically relative to the housing 124. When necessary, the DC power supply 144 may help provide electrical communication between the DC power supply 144 and the light source 140.

[0035] As mentioned above, the electrosurgical device 112 transports surgical smoke from the target tissue outside the surgical site. Surgical smoke is a by-product of various surgical procedures. For example, during a surgical procedure, surgical smoke can be emitted by electrosurgical units (ESUs), lasers, Electrocautery devices, ultrasonic devices, and / or other powered surgical instruments (e.g., bone saws and In some instances, surgical smoke may be generated as a by-product of the surgical procedure (surgery, surgery, or drilling). It may contain toxic gases and / or biological products resulting from the destruction. Additionally, surgical smoke can be unpleasant. For these and other reasons, numerous guidelines exist for surgical personnel regarding their exposure to surgical fumes. This indicates that exposure to cereals containing ... glutathione should be reduced or minimized.

[0036] To reduce (or minimize) exposure to surgical smoke, a smoke evacuation system is installed during the surgical procedure. Generally, smoke evacuation systems are used to attract surgical smoke emanating from a surgical site. It may include a suction pump 146 capable of generating sufficient suction and / or vacuum pressure. In an embodiment, the smoke exhaust system is an exhaust system (e.g., a ventilator) that exhausts surgical smoke outside the operating room. In other embodiments, the smoke exhaust system may be connected to a , filtering air containing surgical smoke and returning the air to the operating room. The pump 146 and electrosurgical generator 110 may be provided as separate devices or may be combined into a single unit. They may be integrated into one device (eg, in a common housing).

[0037] As shown in FIG. 1, the shaft 126 includes a smoke exhaust channel at the distal end of the shaft 126. In one example, the smoke exhaust channel 148 may include a shaft 126 The smoke exhaust channel 148 may extend around the light guide 142 at the distal end of the At the distal end of the light guide 142, a light guide 142 is surrounded (e.g., In this configuration, the smoke inlet of the smoke exhaust flow path is located in the housing 1. 24 and / or the electrosurgical device 112 relative to the target tissue. rotational positioning of the surgical smoke exhaust channel 148. However, in another example, the smoke exhaust channel 148 may be connected to the optical waveguide 142 and / or the electrical outlet. It may include one or more smoke inlets that do not extend circumferentially around the surgical electrode 128 .

[0038] In some embodiments, the smoke exhaust channel 148 and the optical waveguide 142 may be coaxial. For example, the smoke exhaust channel 148 and the optical waveguide 142 are aligned with the central axis of the shaft 126. In other embodiments, the smoke exhaust channels 14 may each have an aligned longitudinal axis. 8 and the optical waveguide 142 may have their respective longitudinal axes offset relative to each other, As a result, the smoke exhaust channel 148 and the optical waveguide 142 are not coaxial.

[0039] In one example, the smoke exhaust channel 148 includes an outer tube separated from the light guide 142 by an air gap. For example, the shaft 126 may be formed to provide a gap between the outer tube and the optical waveguide 142. and a plurality of isolation portions (support rods) extending between the optical waveguide 142 and the outer tube of the smoke exhaust channel 148. In some embodiments, the optical waveguide 142 may include a single optical waveguide 142 and isolation portion. In another embodiment, the isolator is a smoke exhaust flow. In another embodiment, the isolation section 148 may be formed as a single, integral structure with the outer tube of the conduit 148. may be separated from the outer tube of the smoke exhaust channel 148 and the optical waveguide 142 .

[0040] In one example, the smoke exhaust passage 148 of the shaft 126 defines a first portion of the smoke flow passage. The lumen 125 of the housing 124 defines a second portion of the smoke flow path. 1 shows a partial cross-sectional view of an electrosurgical device 112 according to the present invention. In this configuration, surgical smoke is The smoke exhaust passage 148 of the shaft 126 is received within the smoke exhaust passage 148 from the surgical site. The fluid can flow proximally into the lumen 125 of the housing 124. The smoke is drawn through a suction pump connected to the proximal end of the housing 124. It may further flow to a flue 150 configured to transport the gas to 146 .

[0041] In another example, the housing 124 may include a cavity 125 extending through the housing 124 into a smoke exhaust chamber 152. The smoke exhaust passage 148 of the shaft 126 includes an inner wall separating the smoke exhaust passage 148 from the smoke exhaust passage 148 of the housing 124. In this example, the smoke exhaust passage 148 of the shaft 126 is in fluid communication with the exhaust chamber 152. The smoke exhaust chamber 152 of the housing 124 defines a first portion of the smoke flow path, and the smoke exhaust chamber 152 of the housing 124 defines a second portion of the smoke flow path. 3 shows a partial cross-sectional view of electrosurgical device 112 according to this example embodiment. Therefore, in this example, smoke passes through the smoke exhaust chamber 152, which is separated from the lumen 125. This is followed by a smoke conduit 150 at the proximal end of the housing 124. One or more components of the device 112 may be configured to reduce exposure to surgical smoke within the housing 124. In some embodiments, providing a separate smoke exhaust chamber 152 can beneficially assist in by reducing (or eliminating) obstacles and obstructions to gas flow along the second portion of the flow path. Thus, it may additionally or alternatively help to improve the flow of surgical smoke.

[0042] In one embodiment, the proximal portion of the smoke exhaust channel 148 comprises at least one opening 354; The interior wall of the housing 124 includes at least one slot. The opening 354 allows the smoke exhaust passage 148 of the shaft 126 to pass through the smoke exhaust passage of the housing 124. At least one slot in the interior wall 356 of the housing 124 is in fluid communication with the outlet chamber 152. At least one opening 354 may be aligned with the slot 358 of the shaft 126. When the housing 124 is telescopically moved relative to the housing 124, at least one slot 35 8, so that the smoke exhaust passage 148 of the shaft 126 is When the shaft 126 moves telescopically relative to the housing 124, the housing 12 4 in fluid communication with the smoke exhaust chamber 152.

[0043] In one example, the at least one opening 354 includes a plurality of openings 354, and the at least one The slot 358 includes a plurality of slots 358. Also, in this example, each opening 354 has a plurality of slots 358. Each of the shafts 126 is aligned with one of several slots 358. The plurality of openings 354 and the plurality of slots 358 are rotatable relative to the housing 124. The shaft 126 is disposed around the periphery thereof, so that the shaft 126 is fitted to the housing. When the smoke exhaust passage 148 rotates relative to the shaft 124, the fluid communication between the smoke exhaust passage 148 and the smoke exhaust chamber 152 is In one embodiment, the inner wall 356 and slot 358 are and the opening 354. A plurality of openings 354 and respective slots 358 are provided. By doing so, at least one pair of openings 354 and slots 358 is provided in the smoke exhaust chamber 1. 52, thereby aligning the smoke exhaust channel 148 with the smoke exhaust channel 148. Fluid communication between the exhaust chamber 152 and the exhaust chamber 152 may be provided.

[0044] Referring now to FIG. 4, a perspective view of an embodiment of an electrosurgical device 112 is shown, according to one example. As shown in FIG. 4, electrosurgical device 112 defines a lumen 125. a housing 124 and a shaft 125 that is telescopically movable within the housing 124; 26 and an electrosurgical electrode 128 coupled to the shaft 126. However, However, as mentioned above, in other examples, the shaft 126 is fixedly coupled to the housing 124. 124. The shaft 126 may be in a non-movable state relative to the housing 124.

[0045] 4, the optical waveguide 142 is at the distal end 460 of the shaft 126. The optical waveguide 142 is retractable relative to the housing 124 together with the shaft 126. In Figure 4, the optical waveguide 142 extends around the electrosurgical electrode 128. This may result in shadowing due to the orientation of the optical waveguide 142 and electrosurgical electrode 128 relative to the surgical site. By reducing (or avoiding) shadows, it helps to emit light in a relatively uniform manner. However, in other examples, the optical waveguide 142 may be located at the distal end 46 of the shaft 126. 0 and does not extend completely around the electrosurgical electrode 128 and / or the optical waveguide 142 is The casing 126 and / or the housing 124 may be at different locations.

[0046] In some embodiments, the electrosurgical device 112 may include a collar at the proximal end of the housing 124. The collar 462 may be rotatable relative to the housing 124 and may include a shaft This may increase and / or decrease the friction between the outer surface of the outlet 126 and the inner surface of the collar 462. In this manner, the collar 462 accommodates the axial extension and contraction of the shaft 126 relative to the housing 124. This will allow and / or prevent current behavior.

[0047] As shown in Figure 4, the electrosurgical device 112 includes a power cord 122. At the proximal end 464 of the power cord 122, the power cord 122 connects to a connector 464 of the electrosurgical generator 110. The distal end of the power cord 122 includes a plug 466 configured to couple to the power cord 120. The housing 124 is coupled to a printed circuit board 132 within the interior cavity of the housing 124. Power cord 122 extends proximally from housing 124 to plug 466 .

[0048] Additionally, as shown in FIG. 4, the user input device 130 is attached to the exterior surface of the housing 124. The button includes a first button 430A, a second button 430B, and a third button 430C. In this embodiment, first button 430A operates electrosurgical device 112 in a cutting surgical mode. and second button 430B is operated to activate electrosurgical device 112 for coagulation surgery. The third button 430C is operated to operate the light source 140. (i.e., to cause the light source 140 to emit light or to terminate light emission) As mentioned above, the user input device 130 may be configured in various other ways. For example, electrosurgical device 112 may be configured to operate in a fewer number of surgical modes, a greater number of surgical modes, and and / or other examples of various surgical modes (e.g., the exemplary surgical modes described above). Further, for example, the at least one user input device 130 may be an electrosurgical generator. The user interface 116 of the machine 110 and / or one or more surgical modes of the electrosurgical An additional or separate external device (e.g., a foot switch) may be used to operate the operating device 112. Alternatively, it may be provided.

[0049] 5-6 show the distal end of an example electrosurgical device 112. As shown, the shaft 126 includes an optical waveguide 142 at the distal end of the shaft 126 and a The distal end of the shaft 126 surrounds the optical waveguide 142 (for example, the optical waveguide 142 is 6, the smoke exhaust channel 148 is 48 is an outer tube 648 separated from the optical waveguide 142 by a plurality of standoffs 672. It may include 70.

[0050] 7A-7C, another example embodiment of an electrosurgical device 112 is shown. Specifically, FIG. 7A shows a perspective view of electrosurgical device 112. FIG. 7B shows a perspective view of the distal portion of electrosurgical device 112, and FIG. 7C shows a perspective view of the distal portion of electrosurgical device 112 according to this example. A side view of the electrosurgical device 112 is shown.

[0051] As shown in FIG. 7A, electrosurgical device 112 includes a housing defining a lumen 125. a housing 124 and a shaft 126 telescopically movable within a bore 125 of the housing 124; and an electrosurgical electrode 128 coupled to the shaft 126. The length 726A of the shaft 126 extends from the proximal end 726A of the shaft 126 to the distal end 726B of the shaft 126. The shaft 126 has a manual axis 768. The shaft 126 is oriented in the direction perpendicular to the housing 124 of FIGS. 7A to 7C. In other examples, the shaft 126 is fixed to the housing 124. The shaft 126 may be fixedly coupled to the housing 124 so that the shaft 126 is movable relative to the housing 124. do not have.

[0052] As shown in FIGS. 7B-7C, the shaft 126 has an inner surface 770A and an outer surface 77 The shaft wall 770 includes an inner surface 770A of the shaft wall 770 having a shaft A smoke exhaust channel 126 extends from the distal end 726B of the shaft 126 to the proximal end 726A of the shaft 126. As mentioned above, the smoke flow path 148 allows surgical smoke to pass through the electrosurgical device 112. providing a first portion of a smoke flow path along which surgical smoke flows as it leaves the surgical site. obtain.

[0053] For example, in one embodiment, the smoke exhaust passage 148 of the shaft 126 defines a first portion of the smoke flow passage. The lumen 125 of the housing 124 may define a second portion of the smoke flow path as described above with respect to FIG. In this example, the smoke exiting the surgical site may be received within the smoke evacuation channel 148 of the shaft 126. The contained smoke flows proximally along the smoke exhaust channel 148 into the lumen 125 of the housing 124. In the lumen 125 of the housing 124, the smoke is directed through a nozzle connected to the proximal end of the housing 124. to transport the smoke from the housing 124 to the suction pump 146 (shown in FIG. 1). It may further flow into configured flue 150 (shown in FIG. 1).

[0054] In another example, the smoke exhaust passage 148 of the shaft 126 may define a first portion of the smoke flow passage; The smoke exhaust chamber 152 of the housing 124 defines a second portion of the smoke flow path as described above with respect to FIG. In this example, as described above, the smoke may be directed through a smoke exhaust that is separated from the lumen 125. A flue at the proximal end of the housing 124 passes through an outlet chamber 152 (shown in FIGS. 1 and 3). 150. This means that one or more components of the electrosurgical device 112 may This may beneficially help reduce exposure to surgical smoke within the housing 124. In an embodiment, providing a separate smoke exhaust chamber 152 may include increasing the gas flow along the second portion of the flow path. Improving surgical smoke flow by reducing (or eliminating) obstructions and obstructions to may additionally or alternatively support

[0055] As mentioned above, an electrosurgical electrode 128 is coupled to the shaft 126. Specifically, in FIGS. 7A-7C, electrosurgical device 112 includes electrosurgical electrodes 128. 7B-7C. Thus, the electrode receptacle 737 is oriented transverse to the longitudinal axis 768 of the shaft 126. 12 and extends across the smoke exhaust channel 148, so that the electrode receptacle 737 is At the distal end 726B of the nozzle 6, the smoke exhaust flow path 148 is divided into a plurality of smoke inlets 772. Therefore, smoke inlets 772 are provided on multiple sides of electrode receptacle 337 and electrosurgical electrode 128. The first smoke inlet 772 may be disposed on a first major surface of the electrosurgical electrode 128 (e.g., The second smoke inlet 772 may be adjacent to a second opposing major surface of the electrosurgical electrode 128. In this configuration, the smoke inlet 772 of the smoke exhaust flow path 148 is All rotational directions of the electrosurgical device 112 relative to the shaft 126 and / or target tissue. This positioning may assist in containing surgical smoke within the smoke exhaust channel 148.

[0056] In one example, the cross-sectional area of ​​the smoke inlet 772 is at least 50% of the cross-sectional area of ​​the smoke exhaust channel 148. In another example, the cross-sectional area of ​​the smoke inlet 772 may be at least equal to the cross-sectional area of ​​the smoke exhaust channel 148. In another example, the cross-sectional area of ​​the smoke inlet 772 may be 75% of the cross-sectional area of ​​the smoke exhaust channel 148. In another example, the cross-sectional area of ​​the smoke inlet 772 may be at least 80% of the cross-sectional area of ​​the smoke exhaust flow path 1. 48. Thus, the electrode receptacle 737 may be at least 85% of the cross-sectional area of ​​the electrode receptacle 737. The smoke inlet 772 (and smoke exhaust) may help improve the smoke exhaust performance of the surgical device 112. This may help to achieve a relatively large cross-sectional area of ​​the outlet channel 148).

[0057] In FIG. 7C, the first of the plurality of smoke inlets 772 is the first of the electrode receptacles 737. a first portion of the inner surface 770A of the shaft wall 770; A second of the smoke inlets 772 is connected to the second side of the electrode receptacle 737 and the shaft The second portion of the inner surface 770A of the wall 770 is defined by the second portion of the inner surface 770A of the wall 770. In some examples, a plurality of The smoke inlets 772 may have a common size and / or a common shape. Relative balance between the first side of the electrode receptacle 737 and the second side of the electrode receptacle 737 However, in other examples, multiple smoke inlets 7 may be used. At least one of 72 may have a different size and / or a different shape from another one of the plurality of smoke inlets 772. and / or may have a different shape.

[0058] Among the examples, the electrode receptacle 737 may define an opening 774 for receiving the electrosurgical electrode 128, and the electrosurgical electrode 128 may be removably connected (e.g., friction fit or screw connection) or non-removably connected (e.g., by welding and / or or soldering) to the electrode receptacle 737. The opening 774 may be aligned with the central axis of the shaft 126 such that the electrosurgical electrode 128 is centered at the distal end 726B of the shaft 126. This may assist in providing relatively good visibility of the electrosurgical electrode 128 and the surgical site. Further, the central position of the electrosurgical electrode 128 may assist in providing the operation of the electrosurgical device 112 in the plurality of rotational direction position adjustments between the housing 124 and the electrosurgical electrode 128 with respect thereto, and / or between the surgical site and the electrosurgical device 112 with respect thereto. and the surgical site, and / or between the surgical site and the electrosurgical device 112 with respect thereto, and / or between the surgical site and the electrosurgical device 112 with respect thereto. obtained. This may assist in providing relatively good visibility of the electrosurgical electrode 128 and the surgical site. Further, the central position of the electrosurgical electrode 128 may assist in providing the operation of the electrosurgical device 112 in the plurality of rotational direction position adjustments between the housing 124 and the electrosurgical electrode 128 with respect thereto, and / or between the surgical site and the electrosurgical device 112 with respect thereto. obtained. This may assist in providing relatively good visibility of the electrosurgical electrode 128 and the surgical site. Further, the central position of the electrosurgical electrode 128 may assist in providing the operation of the electrosurgical device 112 in the plurality of rotational direction position adjustments between the housing 124 and the electrosurgical electrode 128 with respect thereto, and / or between the surgical site and the electrosurgical device 112 with respect thereto. obtained. This may assist in providing relatively good visibility of the electrosurgical electrode 128 and the surgical site. Further, the central position of the electrosurgical electrode 128 may assist in providing the operation of the electrosurgical device 112 in the plurality of rotational direction position adjustments between the housing 124 and the electrosurgical electrode 128 with respect thereto, and / or between the surgical site and the electrosurgical device 112 with respect thereto. and the electrosurgical electrode 128 with respect thereto, and / or between the surgical site and the electrosurgical device 112 with respect thereto. obtained. This may assist in providing relatively good visibility of the electrosurgical electrode 128 and the surgical site. Further, the central position of the electrosurgical electrode 128 may assist in providing the operation of the electrosurgical device 112 in the plurality of rotational direction position adjustments between the housing 124 and the electrosurgical electrode 128 with respect thereto, and / or between the surgical site and the electrosurgical device 112 with respect thereto. operate.

[0059] As described above, in some embodiments, the electrosurgical device 112 may include one or more optical fibers, in addition to or instead of the optical waveguide 142 for distally transmitting light from the light source 140 to the surgical area. FIGS. 7A - 7C show an example including a plurality of optical fibers 776 extending from the proximal end 726A of the shaft 126 to the distal end 726B of the shaft 126. In the example of FIGS. 7A - 7C, the electrosurgical device 112 excludes the optical waveguide 142. However, the electrosurgical device 112 shown in FIGS. 7A - 7C may include the optical waveguide 142 in addition to or instead of the optical fibers 776 in another example. optical fibers for distally transmitting light from the light source 140 to the surgical area. FIGS. 7A - 7C show an example including a plurality of optical fibers 776 extending from the proximal end 726A of the shaft 126 to the distal end 726B of the shaft 126. In the example of FIGS. 7A - 7C, the electrosurgical device 112 excludes the optical waveguide 142. However, the electrosurgical device 112 shown in FIGS. 7A - 7C may include the optical waveguide 142 in addition to or instead of the optical fibers 776 in another example. optical fibers for distally transmitting light from the light source 140 to the surgical area. FIGS. 7A - 7C show an example including a plurality of optical fibers 776 extending from the proximal end 726A of the shaft 126 to the distal end 726B of the shaft 126. In the example of FIGS. 7A - 7C, the electrosurgical device 112 excludes the optical waveguide 142. However, the electrosurgical device 112 shown in FIGS. 7A - 7C may include the optical waveguide 142 in addition to or instead of the optical fibers 776 in another example. optical fibers 776 extending from the proximal end 726A of the shaft 126 to the distal end 726B of the shaft 126. In the example of FIGS. 7A - 7C, the electrosurgical device 112 excludes the optical waveguide 142. However, the electrosurgical device 112 shown in FIGS. 7A - 7C may include the optical waveguide 142 in addition to or instead of the optical fibers 776 in another example. In the example of FIGS. 7A - 7C, the electrosurgical device 112 excludes the optical waveguide 142. However, the electrosurgical device 112 shown in FIGS. 7A - 7C may include the optical waveguide 142 in addition to or instead of the optical fibers 776 in another example. 112 may include the optical waveguide 142 in addition to or instead of the optical fibers 776 in another example. do.

[0060] As shown in FIG. 7A, electrosurgical device 112 includes a proximal end 72 of shaft 126. 6A. In another example, the light source 140 may be located within the housing 124 proximal to the shaft 126. As shown in FIG. 7A, electrosurgical device 112 is plugged from housing 124. The light source 140 includes a power cord 122 extending proximally to the plug 766. This allows the housing 124 and the electrosurgical device 112 to be and / or may help reduce (or eliminate) heating of shaft 126. , each optical fiber 776 extends from the light source 140 in the plug 766 to the distal end of the shaft 126. In this embodiment, the optical fiber 776 may extend to the power cord 122, the handheld power cord 126B, and the power cord 122. The smoke exhaust passage 148 may extend through the lumen 125 of the housing 124 and the shaft 126. do.

[0061] At the distal end 726B of the shaft 126, the optical fiber 776 is coupled to a plurality of conduits 778. This may connect the light emitting end of the optical fiber 776 to the distal end 726 of the shaft 126. B and / or electrosurgical electrode 128. The fiber 776 may be attached to the fiber 776 by, for example, a friction fit connection, an adhesive connection, and / or a welded connection. Each of the conduits 778 may be connected to the other.

[0062] As shown in FIG. 7C, conduit 778 is a seal between inner surface 770A and outer surface 770B. The shaft wall 770 may extend through the optical fiber 776, and each optical fiber 776 may extend through one of the plurality of conduits 778. This can be done by connecting the optical fibers 776 at the periphery of the shaft 126. This may provide for positioning the light emitting end of the surgical instrument, which reduces shadow formation at the surgical site (or In some examples, the light emitting end of the optical fiber 776 may Approximately perpendicular to the longitudinal axis 768 (e.g., parallel to the plane of the distal end 726B of the shaft 126). In another example, the light emitting ends of any of the plurality of optical fibers 776 may be arranged in a plane. Any one or more of the longitudinal axes 768 may be disposed at different angles relative to the longitudinal axis 768 (e.g., Angled inward toward the longitudinal axis 768 and / or angled away from the longitudinal axis 768 (Angled outwards so that the

[0063] In FIGS. 7A to 7C, the number of conduits 778 is four, and the number of optical fibers 776 is four. However, electrosurgical devices 112 may alternatively be provided in fewer or greater numbers. The conduit 778 and the optical fiber 776 may include a The number of fibers 776 may be at least two. This means that the circumference of the electrosurgical electrode 128 Helps illuminate the surgical area, thereby reducing the formation of shadows in the surgical area 7A-7C, the conduit 778 and the optical fiber 776 are connected to the shaft. The electrodes 126 are equally spaced from each other around the periphery of the electrode 126. Assists in illuminating the surgical area around the electrode 128, thereby reducing shadows in the surgical area. Shadow formation may be further reduced (or eliminated).

[0064] In some embodiments, the light emitting end of the optical fiber 776 may be The optical structure may include one or more optical structures that may assist in shaping the light that enters the optical system. For example, The one or more optical structures may be one or more lenses, one or more prisms, one or more may be selected from the group consisting of a plurality of facets and one or more optical filters.

[0065] In one embodiment, the electrode receptacle 737 and the remainder of the shaft 126 are a single piece, In another embodiment, the shaft 126 may be formed integrally as a one-piece structure. For example, in FIGS. 7A-7C, the shaft 126 may be formed as a main body portion. 782, the distal end portion 780 being connected to the electrode receptacle 7 37. In this example, the distal end portion 780 may be connected to the main body portion 78 of the shaft 126. 2. In other examples, the distal end portion 780 may additionally or alternatively be bonded to a material such as an adhesive, It may be coupled to main body portion 782 by bonding, welding and / or soldering.

[0066] Among other examples, distal end portion 780 and main body portion 782 may be rotated relative to one another in a predetermined manner. 10. Connecting distal end portion 780 and main body portion 782 in longitudinal alignment. For example, in FIG. 7B, Distal end portion 780 includes protrusion 784A, and main body portion 782 is configured such that distal end portion 780 is When coupled to the main body portion 782 of the shaft 126, a slot is provided to receive the projection 784A. The distal end portion 780 of the shaft 126 and the main body portion 784B of the shaft 126 The positioning feature of the part 782 allows the electrosurgical electrode 128 to be positioned relative to the user input device 130, for example. The electrosurgical device 112 is configured to be oriented in a predetermined manner relative to other functional parts of the device. We can provide support.

[0067] 7A-7C, the distal end portion 780 of the shaft 126 has an inner surface 770A and an outer surface 770B. 0B. In this embodiment, main body portion 782 excludes conduit 778. In this embodiment, each optical fiber 776 is connected at its distal end portion 780 by a respective one of a plurality of conduits 778. The shaft wall 770 may be fixedly connected to the shaft wall 770 and may be fixed to the shaft wall 770 within the main body portion 782 of the shaft 126. In another embodiment, the main body portion 782 may not be secured to the shaft wall 770. It further includes a conduit 778 which connects the optical fiber 776 to the shaft within the main body portion 782. It can be connected to the wall portion 770.

[0068] In the example shown in FIGS. 7A to 7C, the optical fiber 776 is connected to the optical fiber 776 by the conduit 778. In another example, the optical fiber 776 is connected to the shaft 126 by held by a friction fit connection, e.g., one or more clips and / or one or Other optical fiber retention structures, such as grooves, may additionally or alternatively be provided on shaft 126. can be linked to

[0069] In the example shown in FIGS. 7A-7C, electrosurgical device 112 is configured to have a circumferential It includes four conduits 778 and four optical fibers 776, equally spaced apart. As noted above, electrosurgical device 112 may alternatively have fewer or more conduits. 778 and optical fiber 776. For example, according to another example, FIGS. Two conduits 878A, 878B that can connect the two optical fibers 776 to the shaft 126 1 shows a distal end portion 880 of the shaft 126, including

[0070] As shown in FIGS. 8A - 8B, the conduits 878A, 878B may include a first conduit 878 A and a second conduit 878B. In this example, the electrode receptacle 837 extends across the entire smoke exhaust passage 148 between the first conduit 878A and the second conduit 878B. In this configuration, the distal end portion 880 is configured to connect the first optical fiber and the second optical fiber on the opposite side of the electrosurgical electrode 128 when the electrosurgical electrode 128 is disposed in the opening 874 of the electrode receptacle 837. This may assist in emitting light from multiple sides of the electrosurgical electrode

[0071] 128, thereby reducing (avoiding) the formation of shadows on the surgical site. Further, as shown in FIG. 8A, the distal end portion 880 of the shaft 126 may include a proximal extension 886 that extends proximally from the distal end 726B of the shaft 126. Among examples, the distal end portion 780 shown in FIGS. 7A - 7C may further include or exclude the proximal extension 886. The proximal extension 886 may be sized and / or formed such that when the distal end portion 880 is connected to the main body portion 782, the proximal extension 886 can be received within the smoke exhaust passage 148 of the main body portion 782. For example, the proximal extension 886 may have a relatively smaller size than the dimensions of the shaft wall portion 770 in the main body portion 782 to allow the main body portion 782 to receive the proximal extension 886 of the

[0072] 9A-9E, another example embodiment of an electrosurgical device 112 is shown. Specifically, FIG. 9A shows a perspective view of electrosurgical device 112, FIG. 9B shows a perspective view of the distal end 926B of the shaft 126 of the electrosurgical device 112. 9C shows a side view of the distal end 926B of the shaft 126, and FIG. 9D shows a side view of the distal end 926B of the shaft 126. FIG. 9E shows a cross-sectional view of the electrosurgical device 112 through the central axis indicated at A. An exploded view of the electrosurgical device 112 is shown.

[0073] As shown in FIG. 9A, electrosurgical device 112 includes a housing defining a lumen 125. a housing 124 and a shaft 126 telescopically movable within a bore 125 of the housing 124; and an electrosurgical electrode 128 coupled to the shaft 126. The central axis 96 extends from the proximal end of the shaft 126 to the distal end 926B of the shaft 126. 8. The shaft 126 is telescopically connected to the housing 124 of FIGS. 9A to 9C. While operable, in other examples, the shaft 126 is fixedly coupled to the housing 124. As a result, the shaft 126 is not movable relative to the housing 124 .

[0074] As shown in FIGS. 9B-9C, the shaft 126 has an inner surface 970A and an outer surface 970B. The shaft wall 970 includes an inner surface 970A having a shaft wall 970B. A smoke exhaust passage 148 is defined which extends from the distal end 926B of the shaft 126 to the proximal end of the shaft 126. As mentioned above, the smoke exhaust channel 148 allows surgical smoke to be evacuated by the electrosurgical device 112. It may provide a first portion of a smoke flow path along which surgical smoke flows as it leaves the surgical site.

[0075] For example, in one example shown in FIG. 9C, the smoke exhaust passage 148 of the shaft 126 The lumen 125 of the housing 124 may define a first portion of the passageway, as described above with respect to FIG. In this example, the second portion of the smoke flow path may be defined as a smoke evacuation path from the surgical site to the shaft 126. Smoke received within the outlet passage 148 flows proximally along the smoke exhaust passage 148 to the outside of the housing 124. In the lumen 125 of the housing 124, the smoke can flow into the lumen 125 of the housing 124. 1 is connected to the proximal end of the housing 124 to draw smoke from the housing 124 to a suction pump 146 (shown in FIG. 1 ) into a flue 150 (shown in FIG. 1) configured to transport the refrigerant to a flue gas supply 152.

[0076] In another example, the smoke exhaust passage 148 of the shaft 126 may define a first portion of the smoke flow passage; The smoke exhaust chamber 152 of the housing 124 defines a second portion of the smoke flow path as described above with respect to FIG. In this example, as described above, the smoke may be directed through a smoke exhaust that is separated from the lumen 125. A flue at the proximal end of the housing 124 passes through an outlet chamber 152 (shown in FIGS. 1 and 3). 150. This means that one or more components of the electrosurgical device 112 may This may beneficially help reduce exposure to surgical smoke within the housing 124. In an embodiment, providing a separate smoke exhaust chamber 152 may include increasing the gas flow along the second portion of the flow path. Improving surgical smoke flow by reducing (or eliminating) obstructions and obstructions to may additionally or alternatively support

[0077] As described above, an electrosurgical electrode 128 is coupled to the shaft 126. 9C-9E, the distal portion of the electrosurgical electrode 128 is a shaft 126, the distal portion of the electrosurgical electrode 128 is attached to the circumference of the shaft 126. Extending inward from the edge to the central axis 968 of the shaft 126. The inwardly extending shape of the distal portion of the shaft 126 provides a smoke exhaust port at the distal end 926B of the shaft 126. The flow path 148 and / or the illumination features (e.g., the light source 140, the light guide 142, and / or the light This may aid in more flexible positioning and placement of the fiber 770).

[0078] 9A-9E, electrosurgical electrode 128 is (i) connected to the periphery of shaft 126; (ii) a first electrode portion 928A extending along a direction parallel to the central axis 968; a second electrode portion 928B extending from the first electrode portion 928A to the central axis 968; and (ii) i) extending distally from the second electrode portion 928B along the central axis 968 of the shaft 926; and a third electrode portion 928C that is connected to the first electrode portion 928. A first bend 928D between the second electrode portion 928A and the second electrode portion 928B, and and a second bend 928E between the third electrode portion 928C.

[0079] In one example, the angle between the first electrode portion 928A and the second electrode portion 928B is about 90°. This means that the distance between the first electrode portion 928A and the second electrode portion 928 The flow of surgical smoke into the smoke exhaust channel 148 is reduced compared to the alternative embodiment where the angle is 90 degrees. This can help improve

[0080] During operation, surgical smoke may flow along the smoke flow path 988 shown in FIG. As shown in FIG. 9D, surgical smoke flows along (i) the second electrode portion 928B; (ii) into the smoke exhaust passage 148 of the shaft 126; and (iii) from the smoke exhaust passage 148 to the housing 1. (iii) from the lumen 125 of the housing 124 to the lumen 125 of the housing 12 4. The gas may flow into a flue 150 at the proximal end of the flue 150.

[0081] As shown in FIGS. 9C and 9E, the shaft 126 has (i) a proximal end and a distal end; and (ii) a first shaft portion 926A extending between the proximal end and the distal end. 9C, the smoke exhaust flow may include a second shaft portion 990B. A passage 148 is defined between a first shaft portion 990A and a second shaft portion 990B. In this example, electrosurgical electrode 128 may be attached to second shaft portion 990B. 9A-9E show a first shaft, which may be connected to one another. 10 shows a shaft 126 including a first shaft portion 990A and a second shaft portion 990B. The shaft 126 may alternatively be a single piece, unitary structure that defines a smoke exhaust passage 148. obtain.

[0082] As shown in FIG. 9E, the electrosurgical device 112 is The electrosurgical energy received from the surgical generator 110 is supplied to the electrosurgical electrodes 128. For example, as described above with respect to FIG. The electrosurgical device 112 shown in FIG. 9E includes a printed circuit board 132 and a housing 134 and a conductive lead 136, which transmit electrosurgical energy. A circuit can be formed for conducting electrical current from the power cord 122 to the electrosurgical electrode 128. In 9E, housing conductors 134 are in the form of conductive channels on the interior surface of housing 124. The conductive lead 136 is connected to the shaft 126 at the proximal end. The outer surface 970B of the shaft 126 and the guide extending along the inner surface 970A of the shaft 126. In this configuration, the distal end of the conductive lead 136 is in the form of an electrosurgical The proximal end of the conductive lead 136 is electrically coupled to the pole 128, and the shaft 126 is When retractably moved relative to the housing 124, the housing conductors 134 are electrically can bind to

[0083] As mentioned above, electrosurgical device 112 includes an illuminator at the distal end 926B of shaft 126. For example, as described above, electrosurgical device 112 may include one or more optical a light source, one or more optical fibers, and one or more optical waveguides. In the example shown in FIGS. 9B-9C, electrosurgical device 112 includes an optical waveguide 142 that extends through a passageway 992 in the first shaft portion 990A. However, in another example, electrosurgical device 112 may include a distal end 926B of shaft 126. a light source 140 at the distal end 926B of the shaft 126, and / or one or more optical fibers at the distal end 926B of the shaft 126. The optical fiber 776 may include a power source.

[0084] 10A-10E show another example of an electrosurgical electrode 128 attached to the periphery of a shaft 126. In an embodiment of the electrosurgical device 112, the distal end of the electrosurgical device 112 extends inwardly from the distal end to the central axis of the shaft 126. Specifically, FIG. 10A shows a perspective view of electrosurgical device 112. FIG. 10B shows the distal end of the shaft 126 of the electrosurgical device 112 shown in FIG. 10A. FIG. 10C shows a perspective view of the electrosurgical device 112 shown in FIG. 10A. FIG. 10D shows a side view of the distal end of the electrostatic discharge device 126 shown in FIG. 10A. 10E shows another side view of the distal end of the shaft 126 of the surgical device 112. 1 shows the annular structure of an electrosurgical device 112, designated 0A.

[0085] As shown in FIGS. 10A-10D, electrosurgical device 112 defines a lumen 125. a housing 124 for supporting the shaft 122 and a shaft 125 for telescopic movement within the housing 124; The surgical instrument may include a shaft 126 and an electrosurgical electrode 128 coupled to the shaft 126. The shaft 126 extends from the proximal end of the shaft 126 to the distal end 1026B of the shaft 126. The shaft 126 has a central axis 1068. In other examples, the shaft 126 is movable telescopically relative to the housing 12 4 so that the shaft 126 can move relative to the housing 124. Not possible.

[0086] 10A-10D, the distal portion of electrosurgical electrode 128 is distal from shaft 126. The distal portion of the electrosurgical electrode 128 extends from the periphery of the shaft 126 to the shaft Extending inwardly from the central axis 1068 of the electrosurgical electrode 126. The shape of the shaft 126 extending in the direction of the smoke exhaust channel 148 at the distal end 1026B of the shaft 126. and / or support more flexible positioning and placement of lighting features (e.g., light source 140). I can help.

[0087] As shown in FIGS. 10D-10E, electrosurgical device 112 includes a shaft 126 A light emitting diode printed circuit board (LED PCB) 1092 is installed in the smoke exhaust flow path 148. The LED PCB 1092 may have a diameter smaller than the diameter of the smoke exhaust channel 148. The opening 1094 may include an opening for venting smoke from the surgical site while allowing the smoke to escape. ED PCB 1092.

[0088] Furthermore, as shown in Figures 10D-10E, the LED PCB 1092 may include one or is one or more electrical contacts electrically coupled to the plurality of LEDs 1096. 1095. The one or more electrical contacts 1095 may be connected to the conductive leads 136 ( 1). In this manner, the conductive leads 136 may be supplied to the LED 1096 via one or more electrical contacts 1095. In this example, LED PCB 1092 reduces RF interference to one or more LEDs 1096. FIG. 11 shows an example of the electrode shown in FIGS. 10A-10E. A number of exemplary LED PCBs 1192A-1192B that may be used with the pneumosurgical device 112 are shown. It shows 92G.

[0089] FIG. 10F is a cross-sectional view of electrosurgical device 112 taken through longitudinal axis 1068, according to one example. As shown in Figure 10F, the electrosurgical electrode 128 includes a conductive lead. 136 as a single piece, one-piece structure. The conductive leads 13 may have a semicircular shape that corresponds to the circular shape of the inner surface of the shaft 126. 6 extends proximally from the electrosurgical electrode 128 to the conductive spring 1039. 39 extends around and / or through the shaft wall of the shaft 126 and includes conductive leads 136 (and electrosurgical electrode 128) to the housing conductors 134 of the housing 124. In this manner, the conductive spring 1039 can be electrically coupled to the housing 124. At all axial positions of the shaft 126, the conductive leads 136 and the housing conductors 13 4.

[0090] Although descriptions of various useful configurations have been presented for purposes of illustration and description, the disclosed The examples of embodiments are not intended to be exhaustive or limiting. Many variations and modifications are possible. It will be apparent to those skilled in the art that various advantageous examples may exhibit different advantages than other advantageous examples. The selected example or examples are provided to illustrate the principles, practical applications, and Others skilled in the art will appreciate that the present disclosure, with its various examples and variations, may be used to implement the particular use for which it is intended. They have been chosen and described to provide an understanding of the method's suitability.

Claims

1. a housing defining a lumen; a shaft telescopically movable within the lumen of the housing, an optical waveguide at the distal end of the shaft; and a smoke exhaust channel surrounding the optical waveguide at the distal end of the shaft; the shaft comprising: an electrosurgical electrode coupled to the shaft; 1. An electrosurgical device comprising:

2. The electrosurgical device of claim 1 , wherein the smoke exhaust channel and the optical waveguide are coaxial.

3. 4. The optical waveguide according to claim 1, further comprising a plurality of isolation sections separating an outer pipe of the smoke exhaust channel from the optical waveguide.

10. The electrosurgical device of claim 1.

4. the smoke exhaust passage of the shaft defines a first portion of a smoke flow passage; 10. The electrical appliance of claim 1, wherein the lumen of the housing defines a second portion of a smoke flow path. Surgical equipment.

5. A pump is connected to the proximal end of the housing and adapted to transport smoke from the housing to a suction pump. The electrosurgical apparatus of claim 4 , further comprising a flue configured to:

6. The housing includes an interior wall separating the lumen from a smoke exhaust chamber within the housing. 、 The smoke exhaust passage of the shaft is in fluid communication with the smoke exhaust chamber of the housing. 、 the smoke exhaust passage of the shaft defines a first portion of a smoke flow passage; 10. The method of claim 1, wherein the smoke exhaust chamber of the housing defines a second portion of a smoke flow path. Electrosurgical devices.

7. a proximal portion of the smoke exhaust channel including at least one opening; the inner wall of the housing includes at least one slot; At least one opening of the smoke exhaust channel is formed in at least one of the inner walls of the housing. two slots aligned with the shaft, so that the smoke exhaust passages in the shaft are aligned with the The electrosurgical apparatus of claim 6 , wherein the smoke exhaust chamber is in fluid communication with the smoke exhaust chamber of the casing.

8. The at least one opening comprises a plurality of openings, and the at least one slot comprises: Contains multiple slots, each opening aligned with a respective one of the plurality of slots; the shaft is rotatable relative to the housing; The plurality of openings and the plurality of slots are disposed around the circumference of the shaft, such that When the shaft is rotated relative to the housing, the smoke exhaust passage and the 8. The electrosurgical device of claim 7, wherein fluid communication is maintained between the smoke evacuation chamber.

9. The at least one opening allows the shaft to move telescopically relative to the housing.

8. The method of claim 7, wherein the at least one slot is axially movable when the at least one slot is rotated.

10. An electrosurgical device as described in claim 9.

10. a printed circuit board fixedly coupled to the housing within the bore; The printed circuit board transmits electrosurgical energy from an electrosurgical generator to the electrosurgical device.

7. The method of claim 6, further comprising a plurality of switches operable to control the supply to the electrodes. Electrosurgical devices.

11. a housing defining a lumen; a shaft coupled to the housing, the shaft extending from a proximal end of the shaft to the shaft; the shaft having a longitudinal axis extending to a distal end of the shaft; an electrosurgical electrode coupled to the shaft; a plurality of optical fibers extending from the proximal end of the shaft to the distal end of the shaft; and, a light source coupled to the plurality of optical fibers at a location proximal to the proximal end of the shaft; and, Equipped with The shaft a shaft wall having an inner surface and an outer surface, the inner surface of the shaft wall comprising: defining a smoke exhaust flow path extending from the distal end of the shaft to the proximal end of the shaft; the shaft wall; an electrode receptacle for connecting the electrosurgical electrode to the shaft; The smoke exhaust passage extends transversely to the longitudinal axis of the A pole receptacle connects the smoke exhaust channel to a plurality of smoke inlets at the distal end of the shaft. the electrode receptacle, which divides; 1. An electrosurgical device comprising:

12. the shaft including a distal end portion coupled to a main body portion; The electrosurgical device according to claim 11, wherein the distal end portion includes the electrode receptacle. Place.

13. The distal end portion of the shaft passes through the shaft wall between the inner surface and the outer surface. a plurality of conduits extending through the 13. The optical fiber of claim 12, wherein each optical fiber is within a respective one of the plurality of conduits. Electrosurgical devices.

14. The plurality of conduits and the plurality of optical fibers are arranged from one another around the circumference of the shaft. The electrosurgical device of claim 13 , wherein the electrodes are equally spaced.

15. the number of the plurality of pipelines is four; The electrosurgical device of claim 13 , wherein the number of optical fibers is four.

16. the plurality of conduits includes a first conduit and a second conduit; The electrode receptacle extends through the entire smoke exhaust flow path between the first conduit and the second conduit. The electrosurgical device of claim 13 , wherein the electrosurgical device extends through the body.

17. 13. The distal end portion is press fit within the main body portion of the shaft.

10. An electrosurgical device as described in claim 9.

18. a power cord extending from the housing proximally to the plug; The electrosurgical device of claim 11 , wherein the light source is within the plug.

19. the smoke exhaust passage of the shaft defines a first portion of a smoke flow passage; 12. The electrical appliance of claim 11, wherein the lumen of the housing defines a second portion of a smoke flow path. Pneumosurgical equipment.

20. A pump is connected to the proximal end of the housing and adapted to transport smoke from the housing to a suction pump.

20. The electrosurgical apparatus of claim 19, further comprising a smoke tube configured to:

21. 10. The method of claim 1, wherein the shaft is telescopically movable within the lumen of the housing.

10. The electrosurgical device of claim 1.

22. a housing defining a lumen; a shaft coupled to the housing, the shaft extending from a proximal end of the shaft to the shaft; the shaft including a smoke exhaust channel extending to a distal end of the shaft; an electrosurgical electrode coupled to the shaft; Equipped with the shaft having a central axis extending between the proximal end and the distal end; a distal portion of the electrosurgical electrode extending distally from the shaft; The distal portion of the electrosurgical electrode extends inwardly from the periphery of the shaft. the electrosurgical device extending along said central axis.

23. the electrosurgical electrode a first shaft coupled to the periphery of the shaft and extending along a direction parallel to the central axis; The electrode part of a second electrode portion extending from the first electrode portion to the central axis; a third electrode extending distally from the second electrode portion along the central axis of the shaft; Part and 23. The electrosurgical device of claim 22, comprising:

24. the electrosurgical electrode a first bend between the first electrode portion and the second electrode portion; a second bend between the second electrode portion and the third electrode portion; 24. The electrosurgical apparatus of claim 23, further comprising:

25. an angle between the first electrode portion and the second electrode portion is less than about 90 degrees; 24. An electrosurgical device according to claim 23.

26. The shaft a first shaft portion extending between the proximal end and the distal end; a second shaft portion extending between the proximal end and the distal end; Including, The smoke exhaust flow path is defined between the first shaft portion and the second shaft portion.

23. The electrosurgical device of claim 22.

27. further comprising an optical waveguide extending through a passageway in the first shaft portion; 27. The electrosurgical electrode of claim 26, wherein the electrosurgical electrode is coupled to the second shaft portion. Pneumosurgical equipment.

28. A light emitting diode printed circuit board (LED PCB) is provided in the smoke exhaust passage of the shaft. ) further comprising: the LED PCB includes an opening having a diameter smaller than a diameter of the smoke exhaust channel; 23. The electrical circuit of claim 22, wherein the LED PCB further comprises one or more LEDs. Surgical equipment.

29. the smoke exhaust passage of the shaft defines a first portion of a smoke flow passage; 23. The electrical appliance of claim 22, wherein the lumen of the housing defines a second portion of a smoke flow path. Pneumosurgical equipment.

30. A pump is connected to the proximal end of the housing and adapted to transport smoke from the housing to a suction pump.

30. The electrosurgical apparatus of claim 29, further comprising a smoke tube configured to:

31. 3. The method of claim 2, wherein the shaft is telescopically movable within the lumen of the housing. Electrosurgical apparatus according to claim 2.

32. Providing an electrosurgical device according to any one of claims 1 to 31; supplying electrosurgical energy to the electrosurgical electrode; applying suction to the smoke exhaust channel while delivering the electrosurgical energy. and, A method comprising:

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