# US 12,508,067 B2 · Smoke evacuation instrument with illumination nozzle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,508,067 B2 - Document ID: US12508067B2 - Status: Granted - Kind: B2 - Application number: 17/888,550 - Filed: 2022-08-16 - Published: 2023-04-06 - Granted: 2025-12-30 - Earliest claimed: 2021-10-04 - Assignees: Covidien LP - Applicants: Covidien LP - Inventors: Grant T. Sims - Web page: https://patentgrep.com/patent/US12508067B2 ## CPC - A61B 18/12: by passing a current through the tissue to be heated, e.g. high-frequency current - A61B 18/1477: {Needle-like probes} - A61B 90/30: Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure - A61B 2018/00577: {Ablation} - A61B 2018/00601: {Cutting} - A61B 2018/00958: {for switching between different working modes of the main function} - A61B 2018/1412: {Blade} - A61B 2090/306: {using optical fibres} - A61B 2090/309: {using white LEDs} - A61B 2218/008: for smoke evacuation - A61B 2560/0418: Pen-shaped housings - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An electrosurgical smoke evacuation pencil includes a handle housing, a suction conduit, an electrode, and a nozzle. The handle housing has a proximal end portion and a distal end portion and defines a lumen therethrough. The suction conduit is coupled to the handle housing and is configured to couple the electrosurgical pencil to a smoke evacuator. The electrode extends from the distal end portion of the handle housing and is configured to couple to a source of electrosurgical energy. The nozzle extends from the distal end portion of the handle housing and defines a lumen in fluid communication with the lumen of the handle housing. The nozzle is configured to transmit light from a light source through the nozzle and out of a distal end of the nozzle to form a light path illuminating therefrom. ## Claims ### Claim 1 An electrosurgical pencil comprising: a handle housing having a proximal end portion and a distal end portion, the handle housing defining a lumen therethrough; a suction conduit coupled to the handle housing, the suction conduit configured to couple the electrosurgical pencil to a smoke evacuator; an electrode extending from the distal end portion of the handle housing and configured to couple to a source of electrosurgical energy; and a nozzle extending from the distal end portion of the handle housing and defining a lumen in fluid communication with the lumen of the handle housing, wherein the nozzle is configured to transmit light from a light source through the nozzle and out of a distal end of the nozzle to form a light path illuminating therefrom, and wherein the distal end of the nozzle defines an inward tapered surface configured to direct light toward a central longitudinal axis of the nozzle. ### Claim 2 (depends on 1) The electrosurgical pencil according to claim 1, wherein the electrode is disposed within the lumen defined by the nozzle. ### Claim 3 (depends on 1) The electrosurgical pencil according to claim 1, further comprising an activator switch operably coupled to the handle housing and configured to activate the light source. ### Claim 4 (depends on 3) The electrosurgical pencil according to claim 3, wherein the activator switch is an adjustable switch configured to vary an intensity of the light path illuminating from the distal end of the nozzle. ### Claim 5 (depends on 1) The electrosurgical pencil according to claim 1, wherein the distal end of the nozzle further defines an outward tapered surface cooperating with the inward tapered surface to form a ridge configured to direct light away from the central longitudinal axis of the nozzle and toward the central longitudinal axis of the nozzle. ### Claim 6 (depends on 1) The electrosurgical pencil according to claim 1, wherein the distal end of the nozzle further defines an outward tapered surface configured to direct light away from the central longitudinal axis of the nozzle. ### Claim 7 (depends on 1) The electrosurgical pencil according to claim 1, wherein the distal end of the nozzle defines another inward tapered surface that cooperates with the inward tapered surface to form a valley. ### Claim 8 A surgical smoke evacuation system, comprising: a smoke evacuator including a suction generator configured to create a vacuum pressure; and an electrosurgical pencil configured to operably couple to the smoke evacuator, the electrosurgical pencil including: a handle housing having a proximal end portion and a distal end portion, the handle housing defining a lumen therethrough; a suction conduit coupled to the handle housing, the suction conduit configured to couple the electrosurgical pencil to the smoke evacuator; an electrode extending from the distal end portion of the handle housing and configured to couple to a source of electrosurgical energy; and a nozzle extending from the distal end portion of the handle housing and defining a lumen in fluid communication with the lumen of the handle housing, wherein the nozzle is configured to transmit light from a light source through the nozzle and out of a distal end of the nozzle to form a light path illuminating therefrom, wherein the nozzle is a multi-tube nozzle including a first tube and a second tube, the first tube configured to transmit light at a first wavelength therethrough and the second tube configured to transmit light at a second wavelength therethrough. ### Claim 9 (depends on 8) The surgical smoke evacuation system according to claim 8, wherein the distal end of the nozzle includes an angled tip configured to cause the light path to illuminate away from a longitudinal axis of the nozzle and wherein the nozzle is rotatable relative to the handle housing to direct the light path illuminating away from the longitudinal axis of the nozzle. ### Claim 10 (depends on 8) The surgical smoke evacuation system according to claim 8, further comprising an activator switch operably coupled to the handle housing and configured to activate the light source, wherein the activator switch is an adjustable switch configured to vary an intensity of the light path illuminating from the distal end of the nozzle. ### Claim 11 An electrosurgical pencil comprising: a handle housing having a proximal end portion and a distal end portion, the handle housing defining a lumen therethrough; a suction conduit coupled to the handle housing, the suction conduit configured to couple the electrosurgical pencil to a smoke evacuator; an electrode extending from the distal end portion of the handle housing and configured to couple to a source of electrosurgical energy; a light source disposed within the handle housing and configured to illuminate light; a nozzle extending from the distal end portion of the handle housing and defining a lumen in fluid communication with the lumen of the handle housing, wherein the nozzle is configured to transmit light illuminating from the light source through the nozzle and out of a distal end of the nozzle to form a light path illuminating therefrom, and wherein the distal end of the nozzle defines an outward tapered surface configured to direct light away from a central longitudinal axis of the nozzle. ### Claim 12 (depends on 11) The electrosurgical pencil according to claim 11, wherein the electrode is disposed within the lumen defined by the nozzle. ### Claim 13 (depends on 11) The electrosurgical pencil according to claim 11, further comprising an activator switch operably coupled to the handle housing and configured to activate the light source. ### Claim 14 (depends on 13) The electrosurgical pencil according to claim 13, wherein the activator switch is an adjustable switch configured to vary an intensity of the light path illuminating from the distal end of the nozzle. ### Claim 15 (depends on 11) The electrosurgical pencil according to claim 11, wherein the distal end of the nozzle further defines an inward tapered surface cooperating with the outward tapered surface to form a ridge configured to direct light away from the central longitudinal axis of the nozzle and toward the central longitudinal axis of the nozzle. ### Claim 16 (depends on 11) The electrosurgical pencil according to claim 11, wherein the distal end of the nozzle further defines an inward tapered surface configured to direct light towards the central longitudinal axis of the nozzle.