An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.

An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.

The invention relates to an endoscopic device, in particular medical or industrial endoscopic device, wherein the endoscopic device comprises, as components, a light source, an optical fiber, a camera, and an endoscope comprising an optical element or a plurality of optical elements, and at least one optical element comprises an optical marking for verifying an identity of the optical element and/or of the endoscope such that the optical marking can be detected by the camera for verifying the identity and/or a configuration of the endoscopic device. The invention furthermore relates to a method for verifying an identity of a component of an endoscopic device, and a computer program product for evaluating an image acquisition of an optical marking of an optical element and for identifying an endoscope of an endoscopic device.

Exemplary embodiments of a disposable endoscope are provided. For example, an endoscope is provided, including a tube having a proximal end and a distal end, a lumen having a proximal end and a distal end, the lumen surrounding an outer circumference of the tube, and a series of achromatic double lenses and singlet lenses within the tube from the distal end to the proximal end of the tube for conveying an image from the distal end of the tube to the proximal end of the tube. A housing is provided at the proximal end of the tube to provide a light path from the proximal end of the lumen to the distal end of the lumen from a polymer fiber optic located within the housing. A camera interface can be provided at an opposite end of the housing to receive the image from the distal end of the tube.

Surgical visualization systems and related methods are disclosed herein, e.g., for providing visualization during surgical procedures. Systems and methods herein can be used in a wide range of surgical procedures, including spinal surgeries such as minimally-invasive fusion or discectomy procedures. Systems and methods herein can include various features for enhancing end user experience, improving clinical outcomes, or reducing the invasiveness of a surgery. Exemplary features can include access port integration, hands-free operation, active and/or passive lens cleaning, adjustable camera depth, and many others.

Surgical visualization systems and related methods are disclosed herein, e.g., for providing visualization during surgical procedures. Systems and methods herein can be used in a wide range of surgical procedures, including spinal surgeries such as minimally-invasive fusion or discectomy procedures. Systems and methods herein can include various features for enhancing end user experience, improving clinical outcomes, or reducing the invasiveness of a surgery. Exemplary features can include access port integration, hands-free operation, active and/or passive lens cleaning, adjustable camera depth, and many others.

To improve the imaging while simultaneously simplifying the manufacturing of a rigid endoscope (2), an inversion system (1) is used as a relay optical unit for the image transfer from an objective (3) to a proximally arranged camera unit (4) of the endoscope (2). The inversion system has an odd number of a first type A of rod lenses (7) and an even number of a second type B of rod lenses (7), which are each arranged on half of the inversion system (1) with respect to a center plane (9) of the inversion system (1).

An imaging scope includes an internal surface defining an internal cavity, a window permitting visual inspection of the internal cavity, a fluid in the internal cavity having a pressure different than ambient pressure, and a leak indicator transitionable between nonvisible and visible through the window when the pressure of the fluid changes toward ambient pressure.

A medical imaging device in accordance with the present application includes a color separation prism, a fluorescence image sensor, a visible light image sensor, and a bandpass filter. The color separation prism splits light into first light belonging to a visible light wavelength band and second light belonging to a fluorescence wavelength band. The fluorescence image sensor is provided at an output side of the color separation prism and is configured to image at least part of the second light belonging to the fluorescence wavelength band separated by the dichroic film. The visible light image sensor is provided at the output side of the color separation prism and is configured to image at least part of the first light belonging to the visible light wavelength band separated by the dichroic film. The bandpass filter is disposed between the color separation prism and the fluorescence image sensor.

A medical imaging device in accordance with the present application includes a color separation prism, a fluorescence image sensor, a visible light image sensor, and a bandpass filter. The color separation prism splits light into first light belonging to a visible light wavelength band and second light belonging to a fluorescence wavelength band. The fluorescence image sensor is provided at an output side of the color separation prism and is configured to image at least part of the second light belonging to the fluorescence wavelength band separated by the dichroic film. The visible light image sensor is provided at the output side of the color separation prism and is configured to image at least part of the first light belonging to the visible light wavelength band separated by the dichroic film. The bandpass filter is disposed between the color separation prism and the fluorescence image sensor.