# US 10,441,343 B2 · Heated resonant cutting device and method of use thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,441,343 B2 - Document ID: US10441343B2 - Status: Granted - Kind: B2 - Application number: 16/291,195 - Filed: 2019-03-04 - Published: 2019-06-27 - Granted: 2019-10-15 - Earliest claimed: 2013-09-30 - Applicants: Donald J. Geisel - Inventors: Donald J. Geisel - Web page: https://patentgrep.com/patent/US10441343B2 ## CPC - A61B 18/10: Power sources therefor - A61B 18/082: {Probes or electrodes therefor} - A61B 2018/00589: {Coagulation} - A61B 2018/00601: {Cutting} - A61B 2018/00607: {Coagulation and cutting with the same instrument} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract Disclosed herein is a cutting and/or coagulating device that includes a cutting and/or coagulating member and a radio frequency generator such that an output of the radio frequency generator is connected to the cutting and/or coagulating member. The cutting and/or coagulating member is electrically resonant at the frequency of the radio frequency generator. Further, the cutting and/or coagulating member may include a resistance wire which is configured to directly contact a target cutting material. The cutting and/or coagulating member may be further heated to a visible glow. Furthermore, a method of cutting and/or coagulating is also contemplated. ## Claims ### Claim 1 A cutting and/or coagulating device comprising: a cutting and/or coagulating member; and a radio frequency generator such that an output of the radio frequency generator is connected to the cutting and/or coagulating member; and wherein the cutting and/or coagulating member is electrically resonant at a frequency of the radio frequency generator and wherein the cutting and/or coagulating member includes a resistance wire which is configured to directly contact a target cutting material. ### Claim 2 (depends on 1) The cutting and/or coagulating device of claim 1, wherein an electrically resonant feature of the cutting and/or coagulating member promotes coupling of energy into target tissue for cutting and/or coagulation. ### Claim 3 (depends on 1) The cutting and/or coagulating device of claim 1, wherein the cutting and/or coagulating member is heated to a temperature that promotes the coupling of energy into target tissue for cutting and/or coagulation. ### Claim 4 (depends on 1) The cutting and/or coagulating device of claim 1, wherein the cutting and/or coagulating member includes iron resistance wire. ### Claim 5 (depends on 1) The cutting and/or coagulating device of claim 1, further comprising a connecting cable extending from the radio frequency generator, the connecting cable including a first contact and a second contact, the first contact contacting a first metallic path, the second contact contacting a second metallic path, wherein a cutting and/or coagulating tip of the cutting and/or coagulating member is connected to each of the first metallic path and the second metallic path. ### Claim 6 (depends on 5) The cutting and/or coagulating device of claim 5, wherein the first metallic path and the second metallic path are each made of at least one of brass, copper and aluminum. ### Claim 7 (depends on 5) The cutting and/or coagulating device of claim 5, wherein the first metallic path includes a first metallic rod having a first end and a second end, wherein the first metallic rod is attached to the first contact of the connecting cable at the first end of the first metallic rod, wherein the second metallic path includes a second metallic rod having a first end and a second end, wherein the second metallic rod is attached to the second contact of the connecting cable at the first end of the second metallic rod, and wherein the first and second metallic rods are located in a handle of the cutting and/or coagulating device and extend across at least a majority of a length of the handle. ### Claim 8 (depends on 7) The cutting and/or coagulating device of claim 7, wherein the cutting and/or coagulating member includes a first elongated metallic element, a second elongated metallic element and the cutting and/or coagulating tip, and wherein the cutting and/or coagulating tip is attached to and extends across the first and second elongated metallic elements, wherein the first elongated metallic element is removably attachable to the second end of the first metallic rod and the second elongated metallic element is removably attachable to the second end of the second metallic rod. ### Claim 9 (depends on 4) The cutting and/or coagulating device of claim 4, wherein the cutting and/or coagulating member includes a portion that is altered mechanically by a removal of material, and wherein the iron resistance wire has a diameter between 0.01 inches and 0.018 inches. ### Claim 10 (depends on 1) The cutting and/or coagulating device of claim 1, wherein the frequency which is electrically resonant in the cutting member is between 24 and 30 MHz. ### Claim 11 (depends on 1) The cutting and/or coagulating device of claim 1, wherein a resonating capacitor is placed in parallel with the cutting member. ### Claim 12 (depends on 1) The cutting and/or coagulating device of claim 1, wherein the radio frequency generator provides a power of at least 10 watts. ### Claim 13 (depends on 3) The cutting and/or coagulating device of claim 3, wherein the temperature of the cutting and/or coagulating member causes a visible glow to at least a portion of the cutting and/or coagulating member. ### Claim 14 A cutting and/or coagulating device comprising: a resonant circuit including a cutting and/or coagulating member; and a radio frequency generator such that an output of the radio frequency generator is connected to the resonant circuit, wherein the radio frequency generator is configured to generate RF current at a frequency that is a resonant frequency of the resonant circuit during cutting and/or coagulating by the cutting and/or coagulating member, and wherein the cutting and/or coagulating member is heated above a Curie temperature. ### Claim 15 (depends on 14) The cutting and/or coagulating device of claim 14, wherein the cutting and/or coagulating member includes resistance wire which is configured to directly contact a target cutting material. ### Claim 16 (depends on 14) The cutting and/or coagulating device of claim 14, wherein the resonant circuit of the cutting and/or coagulating member promotes the coupling of energy into target tissue for cutting and/or coagulation. ### Claim 17 (depends on 14) The cutting and/or coagulating device of claim 14, wherein the frequency which is electrically resonant in the cutting and/or coagulating member is between 24 and 30 MHz. ### Claim 18 (depends on 14) The cutting and/or coagulating device of claim 14, wherein the cutting and/or coagulating member is removably attachable to a handle of the cutting and/or coagulating device. ### Claim 19 (depends on 14) The cutting and/or coagulating device of claim 14, wherein a resonating capacitor is placed in parallel with the cutting and/or coagulating member. ### Claim 20 (depends on 15) The cutting and/or coagulating device of claim 15, wherein the cutting and/or coagulating member includes a portion that is altered mechanically by a removal of material, and wherein the resistance wire has a diameter between 0.01 inches and 0.02 inches.