A device that can be used for in vivo fluorescence measurements by endoscopy or laparoscopy, including: an excitation light source illuminating an object, for example biological tissue, and inducing emission of emission light by the examined object, the emission light is, for example, a fluorescence light; a telemetry sensor emitting a telemetry light beam towards the object; a projector element to project the excitation beam and the telemetry beam directly on the object. The telemetry sensor can estimate a distance between the projector element and the object, which distance makes it possible to modulate intensity of the excitation light emitted by the object. When the object is biological tissue, this makes it possible to comply with illumination thresholds of biological tissue and to maintain an illumination of constant intensity. The projector element can be included at the end of a laparoscope or of an endoscope.

In one embodiment, a method for a stereo endoscope includes receiving electromagnetic radiation through an inner protective window; focusing the electromagnetic radiation with a left optical component toward a left pixel array of a stereo image sensor along an optical axis of the left optical component parallel with but offset from a center axis of the left pixel array; and focusing the electromagnetic radiation with a right optical component toward a right pixel array of the stereo image sensor along an optical axis of the right optical component parallel with but offset from a center axis of the right pixel array. The left pixel array and the right pixel array are offset from the center optical axis of the stereo endoscope to provide stereo image convergence.

A radial illumination system is for projecting a light pattern radially. A light source generates a light output to an optical fiber. A ferrule is provided around the end of the optical fiber, and a reflector is mounted over or in the ferrule or integral with the ferrule, for redirecting the light to form generally radial light. In this way, a simple design with low component count is able to perform the optical alignment and optical reflecting functions.

An endoscope according to the present invention includes an insertion section, a forward observation window and a forward illumination system disposed at a distal end surface of the insertion section, a lateral observation window and a lateral illumination system disposed toward a proximal end, and an image capturing element captures an image of light. The forward illumination system includes a scattering element surrounding the forward observation window, and light guide fibers that cause illumination light from a light source to enter, toward a distal end, input locations arranged in a circumferential direction at a proximal end of the scattering element. The scattering element is constituted by dispersing particles in a homogenous medium, and satisfies the conditional expressions 0.06≤μs≤100 and 0.7≤g<1, where μs indicates a scattering coefficient (1/mm) of the scattering element and g indicates an anisotropy parameter of the particles.

A handheld, multipurpose medical diagnostic instrument capable of examining a patient's ears and eyes, detecting the patient's body temperature, capturing the patient's photograph for a patient profile and capturing the target of interest, and transmitting the collected data to an external device. The obtained images, video, and/or data may be displayed on at least one display screen for viewing in real time or for later viewing.

An endoscopic probe extending from a proximal end to a distal end thereof, and configured to be inserted in a tubular lumen to observe a sample is disclosed. The probe includes a first waveguide enclosed within an inner sheath and extending from the proximal end to the distal end along an axis of the inner sheath; and a plurality of second waveguides having at least the distal ends thereof arranged in one or more rings around the inner sheath to surround the distal end of the first waveguide. At the distal end, the axis of each of the second waveguides is tilted with respect to the axis of the first waveguide by a tilt angle which can be adjustable. This novel endoscopic probe has a resultant numerical aperture larger than the numerical aperture of each of the second waveguides, and it may be applicable to forward-viewing spectrally encoded endoscopes (SEE).

This disclosure relates to instruments and methods of performing an endoscopy. An endoscope for producing images of a surgery in vivo may include a hub and an imaging rod extending from the hub, the imaging rod being configured to direct the light to an imaging sensor located adjacent to a distal end of the imaging rod, the hub and the imaging rod being attached to form an assembly having a center of mass established distally of the hub. In other implementations, the hub may be omitted.

A system and method for controlling an emitter assembly comprising a single electromagnetic radiation source for visualizing a surgical site. The emitter assembly comprises a light valve assembly that is coupled to a control circuit. The emitter assembly is configured to emit visible light, infrared radiation, or a combination thereof in either structured or unstructured formats. The control circuit is configured to control the light valve assembly to control which emitter of the emitter assembly is emitting electromagnetic radiation. The light valve assembly can include light valves for controlling whether an emitter receives electromagnetic radiation. Further, the control circuit can control the wavelength of the electromagnetic radiation emitted by the source in accordance with which emitter is receiving electromagnetic radiation.

Embodiments of visualization devices for assessing a level of contact between vulvovaginal tissue and a coupling component of a vulvovaginal rejuvenation device are provided. The device can comprise a head portion comprising a window and detachably attached to a coupling pad.

A surgical robotic visualization system comprises a first robotic arm, a second robotic arm, a photoacoustic receiver coupled to the first robotic arm, an emitter assembly coupled to the second robotic arm, and a control circuit. The control circuit is configured to cause the emitter assembly to emit electromagnetic radiation toward an anatomical structure at a plurality of wavelengths capable of penetrating the anatomical structure and reaching an embedded structure located below a surface of the anatomical structure, receive an input of the photoacoustic receiver indicative of an acoustic response signal of the embedded structure, and detect the embedded structure based on the input from the photoacoustic receiver.