2253 results about "Optical energy" patented technology

A qualifying connection for an instrument attaches to a source of electrosurgery energy and to the instrument and has first and second parts coupled to the instrument and the source, respectively. Optical couplings on the connection transmit invisible energy to identify the instrument and are proximate on the first and second parts. A light modifier on the first part is proximal to the second part for modification of radiation in the infrared wavelengths so infrared transmitters encode signals and non-contact coded proximity detectors on the second part are the coupled detectors. Mechanical attachments include conjugating male and female portions which physically extend between the parts and matingly engage. An identifying circuit couples to the second part and responds to invisible light optically communicated across the couplings for verifying the type of instrument connected by the cable to the source. A method of using the connection has steps including juxtaposing and conjugating the parts with attachments and couplings for transmitting invisible optical energy to identify the instrument. The method includes modifying the invisible optical energy with geographically disposed proximate couplings of the parts when the attachments engage and the couplings are proximate. Passing and assessing signals of the modified energy are transmitted through the connection and to an identifying circuit in the source.

A method and apparatus are disclosed for enhancing the absorption of light in targeted skin structures and for the inhibition of pain transmission during light based treatments of the skin. After applying a vacuum to a vacuum chamber placed on a skin target and modulating the applied vacuum, the concentration of blood and / or blood vessels is increased within a predetermined depth below the skin surface of the skin target. Optical energy associated with light directed in a direction substantially normal to a skin surface adjoining the skin target is absorbed within the predetermined depth. The apparatus is suitable for treating vascular lesions with a reduced treatment energy density level than that of the prior art and for evacuating condensed vapors produced during the cooling of skin. The vacuum chamber may also have a skin flattening transmitting element which inhibits pain transmission upon applying a sufficiently high vacuum.

A cochlear implant placed in a cochlea of a living subject for stimulating the auditory system of the living subject, where the auditory system comprises auditory neurons. In one embodiment, the cochlear implant includes a plurality of light sources, {Li}, placeable distal to the cochlea, each light source, L1, being operable independently and adapted for generating an optical energy, Ei, wherein i=1, . . . , N, and N is the number of the light sources, and delivering means placeable in the cochlea and optically coupled to the plurality of light sources, {Li}, such that in operation, the optical energies {Ei} generated by the plurality of light sources {Li} are delivered to target sites, {Gi}, of auditory neurons, respectively, wherein the target sites G1 and GN of auditory neurons are substantially proximate to the apical end and the basal end of the cochlea, respectively.

Effective differential dynamic range in a differential pixel detector is increased by avoiding saturation effects due to common mode contribution in optical energy to be detected. Photocurrent generated by each photodetector pair is directly integrated by an associated capacitor over an integration time T. Within time T, before either integrated capacitor voltage reaches Vsat for the photodetector, at least one of the capacitors is reset to a voltage such that the desired differential detector signal is still determinable. Reset may be generated externally or internally to the differential pixel detector.

A laminate film includes a plurality of planar photovoltaic semi-transparent modules disposed one on top of another and laminated to each other. Each of the modules includes a substrate, first and second conductive layers and at least first and second semiconductor layers disposed between the conductive layers. The first and second semiconductor layers define a junction at an interface therebetween. At least one of the junctions is configured to convert a first spectral portion of optical energy into an electrical voltage and transmit a second spectral portion of optical energy to another of the junctions that is configured to convert at least a portion of the second spectral portion of optical energy into an electrical voltage.

An apparatus for transferring two frequencies of electromagnetic energy to and from a portion of a living body for the purpose of blood oxygen saturation measurements. The two frequencies of electromagnetic energy are transferred to the portion of the living body through a single optical fiber cable (which could be a bundle) to a coupler and then through a short section of optical cable to an optical element adjacent to the portion of the living body. After the two frequencies of electromagnetic energy are transmitted through the portion of the living body they are received by another optical element and transported away from the portion of the living body to a coupler through a short section of optical cable where they may be converted to electrical signals. Alternatively, the two frequencies of electromagnetic energy are carried away from the coupler. The signals from the coupler (whether they are electromagnetic signals or electrical signals) are directed to a measurement instrument, which through an adapter may be a conventional measurement instrument known in the prior art or a measurement instrument specifically designed for use with the signals produced at the coupler. The two short sections of optical cable and the two optical elements adjacent to the portion of the living body and the coupler are combined to form a disposable probe. Alternatively, the disposable probe can include a transducer to convert the transmitted optical energy to electrical signals.

A video camera system is provided in which the camera head is powered at least in part by electrical energy converted from optical energy provided by a light source. In one implementation, communication between the camera head and control circuitry thereof occurs by means of a wireless communications interface.

An implantable intraocular pressure sensor device for detecting excessive intraocular pressure above a predetermined threshold pressure is disclosed. The device includes a pressure switch that is sized and configured to be placed in an eye, wherein said pressure switch is activated when the intraocular pressure is higher than the predetermined threshold pressure. The device is optically powered and transmits data wirelessly using optical energy. In one embodiment, the pressure sensor device is a micro electromechanical system.

A device (10) is presented for use in treatment of tissues inside a body cavity. The device comprises a probe member (12) having at least a portion thereof carrying a plurality of light sources (18), at least said portion of the probe member (10) having dimensions and shape suitable for insertion into a certain body cavity and for arranging within the surface thereof a three-dimensional array of said light sources, the light sources being configured and operable to irradiate optical energy outwardly from said probe member.

An electromagnetic radiation immune medical assist system includes a medical assist device; a photonic lead having a proximal end and a distal end; and an adapter to operatively connect the medical assist device with the photonic catheter. The adapter includes a housing, an interface to provide an operative communication connection between the adapter and the medical assist device, a transducer to convert information from the medical assist device into optical energy, and an optical interface to provide an operative connection between the adapter and the photonic catheter.

Effective differential dynamic range and common mode rejection in a differential pixel detector are enhanced by capturing and isolating differential detector charge output before using common mode reset to avoid detector saturation due to common mode components of optical energy to be detected. Differential charge is stored into an integration capacitor associated with an operational amplifier coupled to receive as input the differential detector outputs. Common mode reset is achieved by resetting storage capacitors coupled to the outputs of the differential detector at least once within an integration time T before storage potential exceeds a saturation voltage Vsat for the photodetector.

The present invention is directed to a method and apparatus for providing electromagnetic radiation or other energy to tissue. An array of needles can be inserted at least partially into the tissue, and energy, e.g., optical energy, can be provided to the needles. The needles can include an optical waveguide configured to direct the energy to needle tips located within the tissue adjacent to one or more target regions. The energy can thus be provided directly to the target regions through the needles without being absorbed by upper portions of the tissue. Such method and apparatus can be used to treat a variety of skin conditions, including wrinkles and pigmentation defects. One or more of the needles in the array can also be hollow and configured to provide an analgesic or other substance into the tissue near the target regions.

The present invention provides improved methods and apparatus for skin treatment. The apparatus includes multiple sources of optical energy or several blades that are scanned along a region of skin to form micro-line patterns of damaged tissue. The micro-lines are small in at least one dimension, having a width of less than about 1 mm, and the wounded regions promote beneficial results by stimulation of wound healing and tissue remodeling.