# US 9,039,692 B2 · Handheld medical devices including microwave amplifier unit at device handle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,692 B2 - Document ID: US9039692B2 - Status: Granted - Kind: B2 - Application number: 13/237,068 - Filed: 2011-09-20 - Published: 2013-03-21 - Granted: 2015-05-26 - Earliest claimed: 2011-09-20 - Assignees: Covidien LP - Applicants: Robert J. Behnke, II; Jeffrey L. Jensen; Scott E. M. Frushour; Wayne L. Moul - Inventors: Robert J. Behnke, II; Jeffrey L. Jensen; Scott E. M. Frushour; Wayne L. Moul - Web page: https://patentgrep.com/patent/US9039692B2 ## CPC - A61B 18/1815: {using microwaves} - A61B 2018/00922: {by switching or controlling the treatment energy directly within the hand-piece} - A61B 2018/1823: {Generators therefor} - A61B 2090/0807: {Indication means} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A medical device includes a handle assembly and a probe-and-amplifier assembly. The handle assembly includes a handle body defining a chamber therein. The probe-and-amplifier assembly includes a probe and a microwave amplifier unit. The probe extends distally from the distal end of the handle assembly. The microwave amplifier unit is disposed within the chamber. The microwave amplifier unit and the probe are mechanically coupled to one another to form a unitary body. The probe-and-amplifier assembly is selectively removable from the handle assembly. ## Claims ### Claim 1 A medical device, comprising: a handle assembly including a handle body defining a chamber therein and a first plurality of electrical contacts disposed thereon; and a probe-and-amplifier assembly, including: a probe extending distally from a distal end of the handle assembly; a microwave amplifier unit disposed within the chamber, wherein the microwave amplifier unit and the probe are mechanically coupled to one another to form a unitary body; and a second plurality of electrical contacts coupled to the microwave amplifier unit being selectively engageable with the first plurality of electrical contacts of the handle assembly, wherein the probe-and-amplifier assembly is selectively removable from the handle assembly. ### Claim 2 (depends on 1) The medical device of claim 1, wherein the probe is releaseably mechanically coupled to the microwave amplifier unit to allow the probe to be separated from the amplifier. ### Claim 3 (depends on 1) The medical device of claim 1, wherein the microwave amplifier unit is adapted to amplify a high-frequency input signal to generate a high-frequency output signal to be transmitted to the probe. ### Claim 4 (depends on 1) The medical device of claim 1, wherein the microwave amplifier unit includes a solid-state amplifier having at least one high-frequency switching element. ### Claim 5 (depends on 4) The medical device of claim 4, wherein the at least one high-frequency switching element includes at least one Gallium Nitride Metal-Oxide Semiconductor Field-Effect Transistor (GaN MOSFET). ### Claim 6 (depends on 1) The medical device of claim 1, further comprising a controller electrically-coupled to the microwave amplifier unit and adapted to control at least one operating parameter associated with the microwave amplifier unit. ### Claim 7 (depends on 6) The medical device of claim 6, further comprising a user interface including a screen associated with the handle body, the screen communicatively-coupled to the controller. ### Claim 8 (depends on 7) The medical device of claim 7, wherein the controller is adapted to control the at least one operating parameter associated with the microwave amplifier unit based on at least one electrical signal indicative of a user input received from the user interface. ### Claim 9 (depends on 6) The medical device of claim 6, further comprising a self-contained power source electrically-coupled to the microwave amplifier unit and communicatively-coupled to the controller. ### Claim 10 (depends on 9) The medical device of claim 9, wherein the self-contained power source is communicatively-coupled to the controller. ### Claim 11 (depends on 9) The medical device of claim 9, wherein the self-contained power source is selectively removable from the handle assembly. ### Claim 12 A system, comprising: a microwave signal generator; and a medical device, including: a handle assembly including a handle body defining a chamber therein and a first plurality of electrical contacts disposed thereon; and a probe-and-amplifier assembly, including: a probe extending distally from a distal end of the handle assembly; a microwave amplifier unit disposed within the chamber, wherein the microwave amplifier unit and the probe are mechanically coupled to one another to form a unitary body; and a second plurality of electrical contacts coupled to the microwave amplifier unit being selectively engageable with the first plurality of electrical contacts of the handle assembly, wherein the probe-and-amplifier assembly is selectively removable from the handle assembly. ### Claim 13 (depends on 12) The system of claim 12, further comprising a controller electrically-coupled to the microwave amplifier unit and adapted to control at least one operating parameter associated with the microwave amplifier unit. ### Claim 14 (depends on 13) The system of claim 13, wherein the medical device further includes a user interface including a screen associated with the handle body, the screen communicatively-coupled to the controller. ### Claim 15 (depends on 12) The system of claim 12, further comprising a controller adapted to control at least one operating parameter associated with at least one of the microwave signal generator and the microwave amplifier unit based on at least one electrical signal indicative of a user input received from the user interface. ### Claim 16 (depends on 12) The system of claim 12, wherein the medical device further includes a self-contained power source electrically-coupled to the microwave amplifier unit. ### Claim 17 (depends on 16) The system of claim 16, wherein the self-contained power source is communicatively-coupled to the controller. ### Claim 18 (depends on 17) The system of claim 17, wherein the self-contained power source is selectively removable from the handle assembly.