Prior art

The user wants me to identify the most relevant prior art for US patent 9055868 and provide specific details for each. I have already identified the relevant prior art based on the priority date of US9055868B2 (September 3, 2002) and conducted a preliminary assessment of their content.

Now, I will present the most relevant prior art documents, providing the requested information for each. I will choose three key documents: US6468209B1 (earliest related optical tech), WO03022137A2 (comprehensive early optical diagnostic system), and US6667824B1 (explicitly teaches voice control).

US9055868B2's Priority Date: September 3, 2002 (based on U.S. Provisional Patent Application No. 60/408,025).

Here is an analysis of the most relevant prior art for US patent 9055868:

Most Relevant Prior Art for US9055868

1. U.S. Patent 6,468,209 B1 (Islam et al.)

• Full Citation: U.S. Patent 6,468,209 B1, "Multiwavelength fiber Raman laser," issued October 22, 2002, to Islam et al.
• Publication/Filing Date: Published: October 22, 2002. Filed: August 30, 2001.
• Brief Description: This patent describes a multiwavelength fiber Raman laser system that generates a plurality of optical signals at different wavelengths. It discloses a pump source, a gain fiber (which can include various types like chalcogenide), and reflective elements to create a laser cavity for wavelength shifting. The patent focuses on the fundamental technology for generating and shifting optical wavelengths, particularly into the mid-infrared range, which is crucial for the diagnostic and surgical applications described in US9055868B2.
• Potential Anticipation under 35 U.S.C. § 102: US6468209B1 potentially anticipates claims related to the optical generation components and characteristics in US9055868B2.
  • Claim 18: This claim describes a medical device with "a pump laser capable of generating a pump signal" and "a Raman wavelength shifter coupled to the pump laser, at least a portion of the wavelength shifter comprising a waveguide structure," which generates an output optical signal "comprising a wavelength of approximately 1.7 microns or more." US6468209B1 directly teaches a multiwavelength fiber Raman laser that uses a pump source and Raman wavelength shifter with a gain fiber to produce shifted wavelengths.
  • Claim 19: This claim describes a medical device including "a Raman wavelength shifter operable to generate an optical signal comprising a mid-infrared wavelength," where "at least a portion of the Raman wavelength shifter comprises a chalcogenide waveguide." US6468209B1 discusses using gain fibers, including chalcogenide fibers, for Raman shifting to generate desired wavelengths.
  • It also provides foundational disclosure for parts of Claims 1, 8, and 12 related to the light source and waveguide structures generating specific optical wavelengths for medical use.

2. International Publication Number WO 03/022137 A2 (Islam et al.)

• Full Citation: International Publication Number WO 03/022137 A2, "Miniature multiwavelength optical engine and method," published March 20, 2003, to Islam et al.
• Publication/Filing Date: Published: March 20, 2003. Priority Date: September 4, 2001 (based on U.S. Provisional Application No. 60/316,926).
• Brief Description: This publication describes a miniature multiwavelength optical engine suitable for diagnostic and therapeutic medical applications. It details a light source comprising semiconductor diodes, a multiplexer, and waveguide structures (e.g., Raman wavelength shifters) to produce a multiplexed output beam. A lens system directs this beam onto a patient's body (e.g., comprising blood) for measurements. The document explicitly mentions that these medical diagnostics can include a spectroscopic procedure, specifically a "differential measurement... based at least in part on a comparison of amplitudes at a plurality of associated wavelengths transmitted or reflected from the patient's body." It also discusses generating wavelengths of "1.7 microns or more" and "mid-infrared wavelength" using fused silica and chalcogenide fibers.
• Potential Anticipation under 35 U.S.C. § 102: WO03022137A2 is highly anticipatory of the diagnostic and light-based medical diagnostic system claims of US9055868B2.
  • Claim 1: This diagnostic system claim, in part, describes a light source with "a plurality of semiconductor diodes with light beams, a multiplexer... combining the plurality of semiconductor diode light beams... and one or more waveguide structures," and a "lens system... onto a part of a user's body comprising blood to perform a measurement." WO03022137A2 explicitly teaches these elements and their function for medical diagnostics.
  • Claim 6: This claim specifies that the "measurement comprises a spectroscopic procedure to measure a property of the blood, and wherein the spectroscopic procedure is based at least in part on a comparison of amplitudes at a plurality of associated wavelengths transmitted or reflected from the blood." WO03022137A2 contains nearly identical language describing a differential spectroscopic measurement based on amplitude comparison.
  • Claims 8-11: These claims describe a "light-based medical diagnostic system" with a pump source (semiconductor diodes, multiplexer), first and second waveguide structures (including gain fiber and fused silica fiber), a lens system, and an output beam "comprising at least one wavelength in the range of 1.7 microns or more." WO03022137A2 comprehensively discloses these elements and features.
  • Claim 19 (partially): It teaches the use of chalcogenide fibers to generate mid-IR wavelengths.

3. U.S. Patent 6,667,824 B1 (Islam et al.)

• Full Citation: U.S. Patent 6,667,824 B1, "System and method for remote control of medical devices," issued December 23, 2003, to Islam et al.
• Publication/Filing Date: Published: December 23, 2003. Filed: March 29, 2002.
• Brief Description: This patent describes a system for controlling medical devices, including remote control capabilities. It encompasses a medical device, a manipulator, a communication device (e.g., microphone), a display, and a host system. Crucially, it explicitly teaches the reception of "voice command signals" from a medical professional, the processing of these signals by a "voice recognition module" or "voice recognition software" within the host (system controller), and the generation of control signals to manipulate the medical device in response. It also describes displaying medical information on a monitor, using auxiliary input devices for manual control, and providing feedback from sensors to minimize tissue damage.
• Potential Anticipation under 35 U.S.C. § 102: US6667824B1 is highly anticipatory of the medical device control and voice control aspects of US9055868B2.
  • Claim 1 (partially): This claim describes a "control system adapted to receive, store and process at least a portion of the physiological information... wherein the control system is further capable of receiving voice input signals and manually entered input signals." It also mentions a "host... wherein the control logic includes a voice recognition software to process at least a portion of the voice input signals." US6667824B1 directly discloses a control system receiving voice commands and manually entered input signals, processed by voice recognition software on a host.
  • Claim 2: This claim adds that the "control system is further coupled to an audio output device." While not explicitly in the abstract of US6667824B1, such output devices are typically inherent to a system designed for interactive control and feedback.
  • Claim 3: This claim specifies that the medical device comprises an endoscope. US6667824B1 explicitly states, "the term 'scope' refers to any medical device capable of entering a patient's body, such as endoscopes".
  • Claim 4: This claim refers to an "output for communicating at least a portion of the status or associated information over a communication link to one or more display output devices, wherein the one or more display output devices are located remotely from the host." US6667824B1 details remote display and communication of patient status.
  • Claim 5 (partially): It mentions a "control system may have a touch-screen... and a wireless transceiver to transmit wireless data." US6667824B1 discusses auxiliary input devices that could include touchscreens and wireless communication.
  • Claim 17: This claim describes a "medical device capable of minimizing tissue damage comprises an insertable portion... and one or more sensors coupled to the insertable portion... capable of generating a feedback signal capable of being used to substantially minimize damage to tissue associated with the patient." US6667824B1 states, "medical device 10 may comprise one or more sensors coupled to feedback control circuitry that is capable of minimizing collateral tissue damage during a medical procedure." This is a direct match.
  • Claim 20: This claim describes a "system for controlling a medical device" with a "monitor capable of communicating medical information," a "communication device capable of receiving one or more input signals from a user," and "one or more processors coupled to the communicated device and operable to convert the one or more input signals into one or more control signals capable of being used to manipulate a medical device." US6667824B1 clearly teaches this entire system.

These three prior art documents, particularly US6667824B1 for control and WO03022137A2 for the optical diagnostic engine, collectively represent the most relevant prior art for US9055868B2 due to their early filing/priority dates and direct disclosures of key elements claimed in the patent.