Laparoscopic electrosurgery device
Patent Information
- Application Number
- JP2024205908
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-02-19
Smart Images
Figure 2025024233000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention is generally directed to a laparoscopic hyperpolar electrosurgical device for electrosurgical cutting and coagulation during laparoscopy. The laparoscopic hyperpolar electrosurgical device includes a handpiece member, a return electrode having a conductive hollow tubular member with first and second ends and a conductive appendage extending beyond the first conductive end, an active electrode contained within the handpiece member and suspended within the interior of the conductive hollow tubular member of the return electrode, a portion of the active electrode extending beyond the first end of the conductive hollow tubular member of the return electrode to create an open space between the conductive appendage of the return electrode and the portion of the active electrode extending beyond the first end of the conductive hollow tubular member of the return electrode, and an actuator contained within the handpiece member and in communication with the active electrode to move the active electrode toward the conductive appendage of the return electrode when the device is actuated for cutting and / or coagulation. [Background technology]
[0002] Laparoscopic surgery is a minimally invasive procedure in which surgical procedures are performed through small incisions with the aid of a video camera. A trocar or cannula is placed into the small incision, and then a camera and other instruments are introduced into the trocar or cannula to access the patient's interior. Many types of surgery, such as gastrointestinal surgery, gynecological surgery, and urology, utilize laparoscopy. Laparoscopic surgery minimizes postoperative pain, speeds recovery time (thus shortening hospital stays), and results in smaller scars.
[0003] Many laparoscopic procedures utilize electrosurgical techniques to cut and coagulate tissue. Electrosurgery uses an RF electrosurgical generator (also known as an electrosurgical unit or ESU) and a handpiece with electrodes to provide an input of high frequency alternating radio frequency (RF) current at various voltages to cut or coagulate living tissue. The handpiece can be a monopolar instrument with one electrode or a bipolar instrument with two electrodes. When using a monopolar instrument, a return electrode plate is attached to the patient and high frequency current flows from the generator to the monopolar instrument, through the patient to the patient's return electrode plate, and back to the generator. Monopolar electrosurgery is commonly used due to its versatility and effectiveness. However, because the return electrode placed on the patient's back passes high voltage and high RF energy to the patient, excessive heat generated in monopolar electrosurgery can cause excessive tissue damage and necrosis of that tissue.
[0004] Laparoscopic monopolar electrosurgery can cause indirect burns when current is conducted along unintended paths and burns or vaporizes non-target tissue. These indirect burns can occur as a result of direct or capacitive coupling. Direct coupling can occur when the tip of the active electrode comes into direct contact with another metal instrument in the surgical field. For example, if the active electrode accidentally touches or arcs the laparoscope and the laparoscope is placed in a non-conductive cannula, the entire laparoscope can become charged and the current on the laparoscope can be transferred to the patient's intestines or other internal tissues that are touching the laparoscope, thereby leading to burns. Capacitive coupling occurs when energy is transferred through intact insulators to conductive materials. For example, current can leak through the insulators surrounding the active electrode to another conductor, such as a metal trocar, which can lead to burns at alternative sites far from the surgical site. Even experienced surgeons can easily miss burns caused by capacitive coupling during laparoscopic procedures due to the limited visibility of the surgical field.
[0005] Thus, laparoscopic hyperpolar electrosurgery eliminates tissue damage and tissue necrosis by removing the need for a return electrode on the patient's back so that no current passes through the patient's body during surgery. There is a need for a laparoscopic hyperpolar electrosurgical device that reduces the potential for patient burns by eliminating capacitive coupling and that requires less power to achieve cutting and coagulation than laparoscopic monopolar electrosurgical devices. The laparoscopic hyperpolar electrosurgical device of the present invention, which includes both active and return electrodes within the same device, meets these needs. Summary of the Invention
[0006] The present invention is directed to a laparoscopic hyperpolar electrosurgical device having both active and return electrodes that reduces potential injury to a patient during laparoscopic surgery by eliminating capacitive coupling when using an electrosurgical handpiece device to cut and / or coagulate tissue.
[0007] In one exemplary embodiment, a laparoscopic hyperpolar electrosurgical device of the present invention includes a handpiece member having a first end, a second end, and at least one actuating element for cutting and / or coagulation, a conductive hollow tubular member having a first end, a second end housed within the first end of the handpiece member, and a return electrode having a conductive hollow tubular member with a conductive appendage extending from the first end of the conductive hollow tubular member, an active electrode housed within the handpiece member and the conductive hollow tubular member, at least a portion of the active electrode extending beyond the first end of the conductive hollow tubular member, and an actuator housed within the handpiece member and in communication with the active electrode to move the active electrode toward the conductive appendage of the return electrode upon actuation of cutting and / or coagulation. The handpiece member may further include a hollow region contained therein, wherein an interior of the conductive hollow tubular member and at least a portion of the hollow region contained within the handpiece together form a smoke evacuation channel.
[0008] The laparoscopic hyperpolar electrosurgical device of the present invention may further include a non-conductive guide member housed within at least a portion of the conductive hollow tubular member of the return electrode, through which at least a portion of the active electrode may travel or traverse. The non-conductive guide member may extend across an inner diameter of the conductive hollow tubular member near a first end of the conductive hollow tubular member to create two channels along opposing sides of the non-conductive guide member adjacent an interior of the conductive hollow tubular member surrounding the active electrode housed within the conductive hollow tubular member.
[0009] In one exemplary embodiment, the active electrode in the laparoscopic hyperpolar electrosurgical device of the present invention may comprise a curved conductive member connected to the conductive rod member. The curved conductive member may comprise a "U" or "V" shape and the curved conductive member may be connected in a perpendicular relationship to the conductive rod member with the inside of the "U" or "V" shape facing away from the conductive rod member. In another exemplary embodiment of the laparoscopic hyperpolar electrosurgical device of the present invention, an insulating material may be disposed between the conductive appendage of the return electrode and the portion of the active electrode that extends beyond the conductive hollow tubular member of the return electrode. In yet another exemplary embodiment of the laparoscopic hyperpolar electrosurgical device of the present invention, the conductive appendage of the return electrode may comprise a conductive loop having an opening therethrough and the portion of the active electrode that extends beyond the conductive hollow tubular member of the return electrode may comprise a planar conductive member having a sharp edge.
[0010] The laparoscopic hyperpolar electrosurgical device of the present invention may further include an exhaust port connected to the conductive hollow tubular member of the return electrode such that the conductive hollow tubular member of the return electrode may also function as a smoke exhaust channel. The laparoscopic hyperpolar electrosurgical device may also include a connecting member connecting the actuator to the smoke exhaust device for simultaneously activating smoke exhaust when cutting and / or coagulation are activated.
[0011] In another exemplary embodiment of a laparoscopic hyperpolar electrosurgical device of the present invention, the device includes a handpiece member having a first end and a second end, a conductive hollow tubular member having a first end, a second end housed within the first end of the handpiece member, and a conductive appendage extending from the first end of the conductive hollow tubular member, an active electrode housed within the handpiece member and suspended within an interior of the conductive hollow tubular member, at least a portion of the active electrode extending beyond the first end of the conductive hollow tubular member to create an open space contained between the conductive appendage of the return electrode and the portion of the active electrode that extends beyond the first end of the conductive hollow tubular member, and an actuator housed within the handpiece member and in communication with the active electrode to move the active electrode toward the conductive appendage of the return electrode upon actuation of cutting and / or coagulation. The laparoscopic hyperpolar electrosurgical device may further include a floor switch in communication with the device to actuate the device to perform cutting and / or coagulation.
[0012] The handpiece member of the laparoscopic hyperpolar electrosurgical device may also include a hollow region, where the interior of the conductive hollow tubular member and at least a portion of the hollow region contained within the handpiece together form a smoke evacuation channel. The laparoscopic hyperpolar electrosurgical device may further include a connection member connecting the actuator to the smoke evacuation device for simultaneously activating the smoke evacuation upon activation of the cutting and / or coagulation. Additionally, the laparoscopic hyperpolar electrosurgical device may include a non-conductive guide member housed within at least a portion of the conductive hollow tubular member, where at least a portion of the active electrode is movable through the non-conductive guide member. [Brief description of the drawings]
[0013] [Figure 1] FIG. 1 is a side perspective view of an exemplary embodiment of a laparoscopic hyperpolar electrosurgical device of the present invention showing the internal components of the device. [Diagram 2]FIG. 2 is a partial enlarged view of the cutting and coagulating ends of the exemplary embodiment of the laparoscopic hyperpolar electrosurgical device shown in FIG. [Diagram 3] 3 is a top view of a partial enlargement of the cutting and coagulating ends of the exemplary embodiment of the laparoscopic hyperpolar electrosurgical device shown in FIG. 2. FIG. [Figure 4] FIG. 4 is a side perspective view of another exemplary embodiment of a laparoscopic hyperpolar electrosurgical device of the present invention showing the internal components of the device. [Diagram 5] FIG. 5 is a partial side perspective view of the cutting and coagulating end of yet another exemplary embodiment of a laparoscopic hyperpolar electrosurgical device of the present invention showing the internal components of the device. [Figure 6] FIG. 6 is a partial side perspective view of the cutting and coagulating end of yet another exemplary embodiment of a laparoscopic hyperpolar electrosurgical device of the present invention showing the internal components of the device. [Figure 7] 7 is a top view of a partial view of the cutting and coagulating end of the exemplary embodiment of the laparoscopic hyperpolar electrosurgical device shown in FIG. 6. FIG. [Figure 8] FIG. 8 is a side perspective view of yet another exemplary embodiment of a laparoscopic hyperpolar electrosurgical device of the present invention showing the internal components of the device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0014] The present invention is directed to a laparoscopic hyperpolar electrosurgical device including a handpiece member, a return electrode having a conductive hollow tubular member connected at one end to the handpiece member and having a conductive appendage extending therefrom at the other end, and an active electrode contained within the handpiece member and suspended within the interior of the conductive hollow tubular member of the return electrode, at least a portion of the active electrode extending beyond the end of the return electrode hollow tubular member having the conductive appendage. The laparoscopic hyperpolar electrosurgical device of the present invention is designed to eliminate the need for the return electrode to be placed on another part of the patient's body, and further reduces the possibility of burns by eliminating capacitive coupling.
[0015] In one exemplary embodiment, as shown in FIGS. 1-3, a laparoscopic hyperpolar electrosurgical device 10 of the present invention includes a handpiece member 12 having a first end 14, a second end 16, and at least one operative element 18, 20 for cutting and / or coagulation, and a conductive hollow tubular member 24 having a first end 26, a second end 28 housed within or connected to the first end 14 of the handpiece member 12, and a conductive appendage 30 extending from the first end 26 of the conductive hollow tubular member 24. a handheld device having a hand-operated electrode 22, an active electrode 32 housed within the handpiece member 12 and the conductive hollow tubular member 24 of the return electrode 22, at least a portion 34 of the active electrode 32 extending beyond the first end 26 of the conductive hollow tubular member 24 of the return electrode 22, and an actuator 36 housed within the handpiece member 12 and in communication with the active electrode 32 for moving the active electrode 32 toward the conductive appendage 30 of the return electrode 22 upon actuation of cutting and / or coagulation. The active electrode 32 housed within the conductive hollow tubular member 24 of the handpiece member 12 and the return electrode 22 may take the form of a solid conductive cylindrical member 33, while the portion 34 of the active electrode 32 extending beyond the first end 26 of the conductive hollow tubular member 24 of the return electrode 22 may take the form of a "U" or "V" shaped conductive element 35 connected to an end of the solid conductive cylindrical member 33 in a perpendicular relationship thereto.
[0016] The handpiece member 12 may further include a hollow region 38 contained therein, where an interior 40 of the conductive hollow tubular member 24 of the return electrode 22 forms a smoke evacuation channel with at least a portion of the hollow region 38 in the handpiece member 12. The laparoscopic hyperpolar electrosurgical device 10 may further include a connection member 44 connecting the actuator 36 to a smoke evacuation device (not shown) for simultaneously activating smoke evacuation when cutting and / or coagulation are activated. The handpiece member 12 may further include an exhaust port 42 in communication with the smoke evacuation channel in the handpiece member 12. A vacuum tube 43 may then be connected to the exhaust port 42, while the other end of the vacuum tube 43 is connected to the smoke evacuation device (not shown). Both the connection member 44 (connected to the actuator 36 in the handpiece member 12) and the vacuum tube 43 are connected to the same smoke evacuation device (not shown).
[0017] The laparoscopic hyperpolar electrosurgical device 10 further includes a circuit board 48, a first conductive communication means 50 (such as an electrical wire or any other conductive connector) connecting the return electrode 22 to the circuit board 48, a second conductive communication means 52 (such as an electrical wire or any other conductive connector) connecting the active electrode 32 to the circuit board 48, and a second connection member 46 (such as a cord including one or more insulated wires) connecting the laparoscopic hyperpolar electrosurgical device 10 to an electrosurgical generator to enable cutting and / or coagulation using the laparoscopic hyperpolar electrosurgical device 10. Cutting and / or coagulation actuation elements (such as buttons) 18, 20 are disposed above the circuit board 48 such that, during utilization of the device 10, pressing the buttons engages the circuit board to effect cutting and / or coagulation.
[0018] The laparoscopic hyperpolar electrosurgical device 10 may further include a non-conductive guide member 60 housed within the conductive hollow tubular member 24 of the return electrode 22, through which at least a portion of the active electrode 32 may travel or traverse. The non-conductive guide member 60 may extend across an inner diameter of the conductive hollow tubular member 24 of the return electrode 22 near the first end 26 of the conductive hollow tubular member 24 to create two channels along opposing sides of the non-conductive guide member 60 adjacent the interior of the conductive hollow tubular member 24 surrounding the active electrode 32 housed within the conductive hollow tubular member 24. As previously discussed above, the active electrode 32 may include a curvilinear conductive member 35 connected to the conductive rod member 33, and the curvilinear conductive member 35 may have a U or V shape. The non-conductive guide member 60 guides the conductive cylindrical rod member 33 of the active electrode 32 toward the conductive appendage 30 of the return electrode 22 when the actuator 36 is actuated. 2. When the return electrode 22 is pushed out, the portion 34 of the active electrode 32 (such as the curved conductive member 35) that extends beyond the first end 26 of the conductive hollow tubular member 24 of the return electrode 22 can move steadily and reliably toward the conductive appendage 30 of the return electrode 22.
[0019] When the device 10 is actuated to perform cutting and / or coagulation, the actuator 36 (which may comprise a solenoid) is also actuated. The actuator 36 functions to push the conductive cylindrical rod member 33 of the active electrode 32 forward, which in turn moves the portion 34 (e.g., the curved conductive member 35) of the active electrode 32 that extends beyond the conductive hollow tubular member 24 of the return electrode 22 toward the conductive appendage 30 of the return electrode 22. In that case, a closed circuit is created by the portion 34 (e.g., the curved conductive member 35) of the active electrode 32 that extends beyond the conductive hollow tubular member 24 of the return electrode 22, the patient's tissue that needs to be cut, and the return electrode 22. A contact (and thus a complete circuit) is made through the tissue. The current does not pass through the patient's body, and much less power is required to perform cutting and / or coagulation using the device 10. In addition, because the active electrode 32 of the laparoscopic device 10 is contained within the return electrode 22 of the laparoscopic device 10, there is no capacitive coupling between the patient and the laparoscopic device 10.
[0020] In another exemplary embodiment, as shown in FIG. 4 , a laparoscopic hyperpolar electrosurgical device 100 of the present invention includes a handpiece member 102 having a first end 104 and a second end 106, a conductive hollow tubular member 124 having a first end 126, a second end 128 housed within or connected to the first end 104 of the handpiece member 102, and a return electrode 122 having a conductive appendage 130 extending from the first end 126 of the conductive hollow tubular member 124, and an active electrode 132 housed within the handpiece member 102 and suspended within an interior 140 of the conductive hollow tubular member 124. 1, the device 100 is a foot-switched device having an active electrode 132, at least a portion 134 of the active electrode 132 extending beyond the first end 126 of the conductive hollow tubular member 124 to create an open space contained between the conductive appendage 130 of the return electrode 122 and the portion 134 of the active electrode 132 that extends beyond the first end 126 of the conductive hollow tubular member 124, and an actuator 136 housed within the handpiece member 102 and in communication with the active electrode 132 to move the active electrode 132 toward the conductive appendage 130 of the return electrode 122 when the device 100 is activated for cutting and / or coagulation. The device 100 may further include a foot switch 107 in communication with the device 100 to activate the device 100 to perform cutting and / or coagulation. The floor switch 107 may be connected to an electrosurgical generator unit (ESU) (not shown) by a connecting member 109 to power cutting / coagulation by the device.
[0021] As in the embodiment shown in Figures 1-3, the handpiece member 102 may further include a hollow region 138 contained therein, the interior of the hollow conductive tubular member forming a smoke evacuation channel with at least a portion of the hollow region in the handpiece member. The laparoscopic hyperpolar electrosurgical device 100 may further include a connection member 144 connecting the actuator 136 to a smoke evacuation device (not shown) for simultaneously activating smoke evacuation when cutting and / or coagulation are activated. The handpiece member 102 may further include an exhaust port 142 in communication with the smoke evacuation channel in the handpiece member 102. A vacuum tube 143 may then be connected to the exhaust port 142, while the other end of the vacuum tube 143 is connected to the smoke evacuation device (not shown). Both the connection member 144 (connected to the actuator 136 in the handpiece member 102) and the vacuum tube 143 are connected to the same smoke evacuation device (not shown). The laparoscopic hyperpolar electrosurgical device 100 may also include a second connection member 146 (such as a cord including one or more insulated wires) that connects the laparoscopic hyperpolar electrosurgical device 100 to an electrosurgical generator (ESU) to enable cutting and / or coagulation using the laparoscopic hyperpolar electrosurgical device 100. Both the connection member 146 (connected to actuator 136) and the foot switch 107 are connected to the same electrosurgical unit (ESU) generator (not shown).
[0022] The laparoscopic hyperpolar electrosurgical device may further include a non-conductive guide member 160 housed within the conductive hollow tubular member 124, through which at least a portion of the active electrode 132 may travel / traverse. The non-conductive guide member 160 performs the same functions and operates in the same manner as the non-conductive guide member 60 described above with reference to Figures 1-3.
[0023] 5 is a partial side perspective view of the cutting and coagulating end of yet another exemplary embodiment of a laparoscopic hyperpolar electrosurgical device 200 of the present invention. As shown in FIG. 5, an insulating material 235, such as a ceramic, is included between the conductive appendage 230 of the return electrode 222 and the portion 234 of the active electrode 232 that extends beyond the first end 226 of the conductive hollow tubular member 224 of the return electrode 222. A non-conductive guide member 260 is received within the conductive hollow tubular member 224 of the return electrode 222 to support the portion 234 of the active electrode 232 that extends beyond the first end 226 of the conductive hollow tubular member 224 of the return electrode 222. The portion 230 of the return electrode and the portion 234 of the active electrode that extends beyond the conductive hollow tubular member 224 of the return electrode 222 may be stationary and non-movable, including the insulating material 235 included therebetween. Alternatively, the portion 230 of the return electrode 222 that extends beyond the conductive hollow tubular member 224 of the return electrode 222 may have a layer of insulation 235 included thereon such that it is insulated from the moving portion 235 of the active electrode 232 that extends beyond the conductive hollow tubular member 224 of the return electrode 222.
[0024] 6 and 7 show the cutting and coagulating end of yet another exemplary embodiment of a laparoscopic hyperpolar electrosurgical device 300 of the present invention. As shown in FIGS. 6 and 7, the conductive appendage 330 of the return electrode 322 is a conductive loop 331 having an opening 333 therethrough, and the portion 334 of the active electrode 332 that extends beyond the first end 326 of the conductive hollow tubular member 324 is a planar conductive member 335 having a sharp edge 336. The laparoscopic hyperpolar electrosurgical device 300 may further include a non-conductive guide member 360 housed within the conductive hollow tubular member 324, through which at least a portion of the active electrode 332 may travel / traverse. The non-conductive guide member 360 serves the same function and operates in the same manner as the non-conductive guide member 60 described above with reference to FIGS. 1-3.
[0025] In yet another exemplary embodiment, as shown in FIG. 8 , a laparoscopic hyperpolar electrosurgical device 400 of the present invention includes a handpiece member 412 having a first end 414, a second end 416, and at least one working element 418, 420 for cutting and / or coagulation, and a conductive hollow tubular member 424 having a first end 426, a second end 428 housed within or connected to the first end 414 of the handpiece member 412, and a conductive appendage 430 extending from the first end 426 of the conductive hollow tubular member 424. a return electrode 422 including a conductive hollow tubular member 424, an active electrode 432 housed within the handpiece member 412 and the conductive hollow tubular member 424, at least a portion 434 of the active electrode 432 extending beyond a first end 426 of the conductive hollow tubular member 424 of the return electrode 422, and an actuator 436 housed within the handpiece member 412 and in communication with the active electrode 432 to move the active electrode 432 toward the conductive appendage 430 of the return electrode 422 upon actuation of cutting and / or coagulation. The actuator 436 may have a push member 437, and a portion of the active electrode 432 located near the actuator 436 may be housed within a spring member 439, which is configured to retract or disengage the push member 437 of the actuator 436 from an end of the active electrode 432 housed within the handpiece member 412. This helps return the active electrode 432 to its pre-activation state after being activated.
[0026] An exhaust port 442 may be connected to the conductive hollow tubular member 424 such that it communicates with the interior 440 of the conductive hollow tubular member 424. The interior 440 of the conductive hollow tubular member 424 may then function as a smoke evacuation channel through which smoke and debris can be removed from the surgical site when a vacuum is applied to the exhaust port 442. The laparoscopic hyperpolar electrosurgical device 400 may further include a connecting member 444 connecting the actuator 436 to a smoke evacuation device (not shown) for simultaneously activating smoke evacuation when cutting and / or coagulation are activated.
[0027] The laparoscopic hyperpolar electrosurgical device 400 may further include one or more non-conductive guide members 460 housed within the conductive hollow tubular member 424, through which at least a portion of the active electrode 432 may travel. The non-conductive guide member(s) 460 may extend across an inner diameter of the conductive hollow tubular member 424 to create two channels along opposing sides of the non-conductive guide member(s) 460 adjacent the interior 440 of the conductive hollow tubular member 424 that surround the active electrode 432 housed within the conductive hollow tubular member 424. The active electrode 432 includes a blade-shaped member 435 connected to a conductive rod member 433.
[0028] When the device is actuated to perform cutting and / or coagulation, the actuator 436 (which may comprise a solenoid) is also actuated. The pusher member 437 of the actuator 436 functions to push the rod member 433 of the active electrode 432 forward, which in turn moves the portion 434 of the active electrode 432 that extends beyond the conductive hollow tubular member 424 of the return electrode 422 towards the conductive appendage 430 of the return electrode 422. A closed circuit is then created by the portion 434 of the active electrode 432 that extends beyond the conductive hollow tubular member 424 of the return electrode 422, the patient's tissue that needs to be cut, and the return electrode 422. A contact (and therefore a complete circuit) is made through the tissue. No current passes through the patient's body and much less power is required to perform cutting and / or coagulation using the device 400. Additionally, because the active electrode 432 of the laparoscopic device 400 is contained within the return electrode 422 of the laparoscopic device 400, there is no capacitive coupling between the patient and the laparoscopic device 400. The spring member 439 helps return the active electrode 432 to its pre-actuated state after the push member 437 of the actuator 436 is retracted or disengaged from the end of the active electrode 432 contained within the handpiece member 412. [Explanation of symbols]
[0029] Element / feature identification information for the reference numbers shown in the figures is as follows: 10 Laparoscopic hyperpolar electrosurgical device 12 Handpiece components 14 (of the handpiece member) first end 16 (of the handpiece member) second end 18 Actuating element for cutting 20 Actuating elements for coagulation 22 Return electrode 24 Conductive hollow cylindrical member 26 (of the conductive hollow tubular member) first end 28 (of the conductive hollow tubular member) second end 30 Conductive Additives 32 Active Electrodes 33 Conductive cylindrical rod member 34 (extending beyond the first end of the hollow conductive tubular member) a portion of the active electrode 35 Curved conductive member 36 Actuators (e.g. solenoids) 38 (in the handpiece) hollow area 40 Inside of conductive hollow cylindrical member 42 (Handpiece) Exhaust Port 43 Vacuum tube 44 Connection parts (to / for smoke exhausters) 46 Second connection member (to ESU generator for cutting / coagulation by device) 48 Circuit Board 50 First conductive communication means (connecting the return electrode to the circuit board) 52 second conductive communication means (connecting the active electrode to the circuit board) 60 Non-conductive guide member 100 Laparoscopic hyperpolar electrosurgical device with foot switch control 102 Handpiece parts 104 (of handpiece member) first end 106 (of the handpiece member) second end 107 Foot Switch 109 Connections (to ESU generators for cutting / coagulation devices) 122 Return electrode 124 Conductive hollow cylindrical member 126 (of the conductive hollow tubular member) first end 128 (of the conductive hollow tubular member) second end 130 Conductive Additives 132 Active Electrodes 134 (extending beyond the first end of the hollow conductive tubular member) a portion of the active electrode 136 Actuators (e.g. solenoids) 138 (in the handpiece) hollow area 140 (Inside of conductive hollow cylindrical member) 142 (Handpiece) Exhaust Port 143 Vacuum tube 144 Connection members (to / for smoke exhausters) 146 Connections (to ESU generators for cutting / coagulation devices) 160 Non-conductive guide member 200 Laparoscopic Hyperpolar Electrosurgical Device 222 Return electrode 224 Conductive hollow cylindrical member 226 (of the conductive hollow tubular member) first end 230 Conductive Additives 232 Active Electrode 234 (extending beyond the first end of the hollow conductive tubular member) a portion of the active electrode 235 Insulating materials (e.g., ceramics) 260 Non-conductive guide member 300 Laparoscopic Hyperpolar Electrosurgical Device 322 Return Electrode 324 Conductive hollow cylindrical member 326 (of the conductive hollow tubular member) first end 330 Conductive Additives 331 Conductive Loop 332 Active Electrode 333 Aperture 334 (extending beyond the first end of the hollow conductive tubular member) a portion of the active electrode 335 Flat conductive members 336 Sharp Edges 360 Non-conductive guide member 400 Laparoscopic Hyperpolar Electrosurgical Device 412 Handpiece parts 414 (of handpiece member) first end 416 (of the handpiece member) second end 418 Actuating element for cutting 420 Actuating elements for coagulation 422 Return Electrode 424 Conductive hollow cylindrical member 426 (of the conductive hollow tubular member) first end 428 (of the conductive hollow tubular member) second end 430 Conductive Additives 432 Active Electrode 433 Conductive rod components 434 (extending beyond the first end of the hollow conductive tubular member) a portion of the active electrode 435 Blade-type components 436 Actuators (e.g. solenoids) 437 (Actuator) Pushing Member 439 Spring parts 0 Inside (of a conductive hollow cylindrical member) 442 Exhaust port (of a conductive hollow tubular member for evacuating smoke and debris) 444 Connecting members (to / for smoke exhausters) 446 Connections (to ESU generators for cutting / coagulation devices) 448 Circuit Board 450 (connecting the return electrode to the connecting member of the ESU generator) conductive communication means 452 (Conductive communication means for connecting active electrodes to a circuit board) 460 Non-conductive guide member
[0030] The above description of the exemplary embodiments of the present invention shows various exemplary embodiments of the present invention. These exemplary embodiments and modes are described and illustrated in sufficient detail to enable those skilled in the art to practice the present invention, and are not intended to limit the scope, applicability, or configuration of the present invention in any way. Rather, the present disclosure is intended to teach both the implementation of the exemplary embodiments and modes, and any equivalent modes or embodiments known or apparent to those skilled in the art. Moreover, all examples included are non-limiting examples of the exemplary embodiments and modes, and are similarly intended to serve as any equivalent modes or embodiments known or apparent to those skilled in the art.
[0031] In addition to those not specifically described, other combinations and / or modifications of the structure, arrangement, application, proportions, elements, materials, or components used in the practice of the invention may be varied or otherwise specifically adapted to a particular environment, manufacturing specifications, design parameters, or other operating requirements without departing from the scope of the invention and are intended to be encompassed by this disclosure.
[0032] Unless otherwise noted, it is the applicant's intention that the words and phrases in the specification and claims be given their commonly accepted or ordinary meanings, or their usual and accustomed meanings used by those of ordinary skill in the art. The words and phrases in the claims are to be given the broadest possible general meaning. If any other special meaning is intended for any word or phrase, this specification shall expressly state and define that special meaning.
Claims
1. a handpiece member having a first end, a second end, and at least one of a cutting element and a coagulating element; a return electrode comprising a conductive hollow tubular member having a first end, a second end received within the first end of the handpiece member, and a conductive appendage extending from the first end of the conductive hollow tubular member; an active electrode contained within the handpiece member and the conductive hollow tubular member, at least a portion of the active electrode extending beyond the first end of the conductive hollow tubular member; an actuator contained within the handpiece member and in communication with the active electrode for moving the active electrode toward the conductive appendage of the return electrode when at least one of cutting and coagulation is activated; 1. A laparoscopic hyperpolar electrosurgical device comprising:
2. 10. The laparoscopic hyperpolar electrosurgical device of claim 1, wherein the handpiece member further comprises a hollow region contained therein, the interior of the conductive hollow tubular member and at least a portion of the hollow region contained within the handpiece together forming a smoke evacuation channel.
3. The laparoscopic hyperpolar electrosurgical device of claim 2 , further comprising a connecting member connecting the actuator to a smoke evacuation device for simultaneously activating smoke evacuation upon activation of at least one of cutting and coagulation.
4. 10. The laparoscopic hyperpolar electrosurgical device of claim 1, further comprising a non-conductive guide member housed within at least a portion of the conductive hollow tubular member, wherein at least a portion of the active electrode is movable through the non-conductive guide member.
5. 5. The laparoscopic hyperpolar electrosurgical device of claim 4, wherein the non-conductive guide member extends across an inner diameter of the conductive hollow tubular member near the first end of the conductive hollow tubular member to create two channels along opposing sides of the non-conductive guide member adjacent an interior of the conductive hollow tubular member surrounding the active electrode contained within the conductive hollow tubular member.
6. The laparoscopic hyperpolar electrosurgical device of claim 1 , wherein the active electrode comprises a curvilinear conductive member connected to a conductive rod member.
7. The laparoscopic hyperpolar electrosurgical device of claim 6 , wherein the curved conductive members comprise U-shaped or V-shaped conductive members.
8. 7. The laparoscopic hyperpolar electrosurgical apparatus of claim 6, further comprising a non-conductive guide member housed within at least a portion of the conductive hollow tubular member, at least a portion of the conductive rod member being movable through the non-conductive guide member.
9. 10. The laparoscopic hyperpolar electrosurgical device of claim 1, further comprising insulation included between the conductive appendage of the return electrode and the portion of the active electrode that extends beyond the first end of the conductive hollow tubular member.
10. 2. The laparoscopic hyperpolar electrosurgical device of claim 1, wherein the conductive appendage of the return electrode comprises a conductive loop having an opening therethrough, and the portion of the active electrode that extends beyond the first end of the conductive hollow tubular member comprises a planar conductive member having a sharp edge.
11. The laparoscopic hyperpolar electrosurgical device of claim 1 , wherein the actuator comprises a solenoid.
12. The laparoscopic hyperpolar electrosurgical device of claim 1 , further comprising an exhaust port connected to the conductive hollow tubular member such that the conductive hollow tubular member can also function as a smoke exhaust channel.
13. a handpiece member having a first end and a second end; a return electrode comprising a conductive hollow tubular member having a first end, a second end received within the first end of the handpiece member, and a conductive appendage extending from the first end of the conductive hollow tubular member; an active electrode contained within the handpiece member and suspended within an interior of the conductive hollow tubular member, at least a portion of the active electrode extending beyond the first end of the conductive hollow tubular member to create an open space contained between the conductive appendage of the return electrode and the portion of the active electrode that extends beyond the first end of the conductive hollow tubular member; an actuator contained within the handpiece member and in communication with the active electrode for moving the active electrode toward the conductive appendage of the return electrode when the device is activated for at least one of cutting and coagulation; 1. A laparoscopic hyperpolar electrosurgical device comprising:
14. The laparoscopic hyperpolar electrosurgical device of claim 13, further comprising a floor switch in communication with the device to activate the device to perform at least one of cutting and coagulation.
15. The laparoscopic hyperpolar electrosurgical device of claim 14, further comprising a connecting member connecting the actuator to a smoke evacuation device for simultaneously activating smoke evacuation upon activation of at least one of cutting and coagulation.
16. 14. The laparoscopic hyperpolar electrosurgical device of claim 13, wherein the handpiece member further comprises a hollow region contained therein, the interior of the conductive hollow tubular member and at least a portion of the hollow region contained within the handpiece together forming a smoke evacuation channel.
17. 14. The laparoscopic hyperpolar electrosurgical device of claim 13, further comprising a non-conductive guide member housed within at least a portion of the conductive hollow tubular member, at least a portion of the active electrode being movable through the non-conductive guide member.
18. 20. The laparoscopic hyperpolar electrosurgical device of claim 17, wherein the non-conductive guide member extends across an inner diameter of the conductive hollow tubular member near the first end of the conductive hollow tubular member to create two channels along opposing sides of the non-conductive guide member adjacent an interior of the conductive hollow tubular member surrounding the active electrode contained within the conductive hollow tubular member.
Citation Information
Patent Citations
Medical ablation device and method of use
JP2018514302A
Apparatus and method for sealing and cutting tissue
US6267761B1