A variable direction of view endoscope is positionable at desired locations within the ear, nose, throat, paranasal sinuses or cranium to accomplish visualization. A method of use includes introducing the variable direction of view endoscope into a nasal cavity with the endoscope adjusted to a first direction of view between about 0 degrees and about 15 degrees relative to a longitudinal axis of the endoscope. A therapeutic device is introduced into the nasal cavity and the endoscope is adjusted to a second direction of view directed toward the sinus opening or passageway. The method also includes advancing the therapeutic device into or through the sinus opening and viewing at least one of the sinus opening or passageway or the therapeutic device using the endoscope adjusted to the second direction of view.

A variable direction of view endoscope is positionable at desired locations within the ear, nose, throat, paranasal sinuses or cranium to accomplish visualization. A method of use includes introducing the variable direction of view endoscope into a nasal cavity with the endoscope adjusted to a first direction of view between about 0 degrees and about 15 degrees relative to a longitudinal axis of the endoscope. A therapeutic device is introduced into the nasal cavity and the endoscope is adjusted to a second direction of view directed toward the sinus opening or passageway. The method also includes advancing the therapeutic device into or through the sinus opening and viewing at least one of the sinus opening or passageway or the therapeutic device using the endoscope adjusted to the second direction of view.

A medical instrument includes a first elongated member including: a fluid lumen through which a fluid is flowable, an aperture opening located in a distal end surface of the first elongated member; a second elongated member including: an insertion lumen in which the first elongated member is insertable, and a discharge section through which the fluid can be discharged; and a movement section configured to form a seal between the first elongated member and the second elongated member in a state where the first elongated member is disposed in the insertion lumen of the second elongated member, the movement section being configured to allow the first elongated member and the second elongated member to move relative to each other such that the discharge section of the second elongated member is positionable on a distal side of the aperture of the first elongated member.

A medical instrument includes a first elongated member including: a fluid lumen through which a fluid is flowable, an aperture opening located in a distal end surface of the first elongated member; a second elongated member including: an insertion lumen in which the first elongated member is insertable, and a discharge section through which the fluid can be discharged; and a movement section configured to form a seal between the first elongated member and the second elongated member in a state where the first elongated member is disposed in the insertion lumen of the second elongated member, the movement section being configured to allow the first elongated member and the second elongated member to move relative to each other such that the discharge section of the second elongated member is positionable on a distal side of the aperture of the first elongated member.

One embodiment provides a portable endoscope. The portable endoscope includes a case configured to enclose at least electrical components of the portable endoscope. The electrical components include a camera configured to capture video content within a body of a patient. The components include one or more lights at least partially encompassing the camera. The one or more lights are adapted to illuminate internal portions of the body of the patient. The components include a transceiver in electrical communication with the camera. The transceiver is configured to receive the video content from the camera and wirelessly transmit the video content to a computing or communications device. The components include a battery configured to provide electrical energy to the camera, the one or more lights, and the transceiver. Each of the electrical components are interchangeable within the case.

One embodiment provides a portable endoscope. The portable endoscope includes a case configured to enclose at least electrical components of the portable endoscope. The electrical components include a camera configured to capture video content within a body of a patient. The components include one or more lights at least partially encompassing the camera. The one or more lights are adapted to illuminate internal portions of the body of the patient. The components include a transceiver in electrical communication with the camera. The transceiver is configured to receive the video content from the camera and wirelessly transmit the video content to a computing or communications device. The components include a battery configured to provide electrical energy to the camera, the one or more lights, and the transceiver. Each of the electrical components are interchangeable within the case.

A guidewire comprises an elongate metal core, an inner layer, an optical core, and an outer layer. The metal core is configured to communicate torsional motion from a proximal end of the metal core to the distal end of the metal core. The inner layer extends about the metal core and has a first index of refraction. The optical core is disposed about the inner layer, wherein the optical core is configured to transmit light along the length of the guidewire. The optical core has a second index of refraction, which is greater than the first index of refraction. The outer layer is disposed about the optical core and has a third index of refraction. The third index of refraction is less than the second index of refraction.

An instrument includes a handle assembly, a shaft, a dilation catheter, and a position sensor. The shaft extends distally from the handle assembly. The shaft includes a distal end that is configured to be introduced into an anatomical passageway within a head of a human. The dilation catheter includes an expandable dilator and is configured to advance distally relative to the shaft. The position sensor is configured to generate signals indicating a position of the position sensor within the head. The position sensor is configured to advance distally between at least first and second positions. The position sensor is disposed adjacent the distal end of the shaft in the first position, and is configured to be carried further distally by the dilation catheter to the second position. In the second position, the position sensor is separated a distance from the distal end of the shaft.

An instrument includes a handle assembly, a shaft, a dilation catheter, and a position sensor. The shaft extends distally from the handle assembly. The shaft includes a distal end that is configured to be introduced into an anatomical passageway within a head of a human. The dilation catheter includes an expandable dilator and is configured to advance distally relative to the shaft. The position sensor is configured to generate signals indicating a position of the position sensor within the head. The position sensor is configured to advance distally between at least first and second positions. The position sensor is disposed adjacent the distal end of the shaft in the first position, and is configured to be carried further distally by the dilation catheter to the second position. In the second position, the position sensor is separated a distance from the distal end of the shaft.

A speculum having an elongated portion with two hinged jaws. In a first mode, the jaws are positioned adjacent each other and in a second mode, the jaws are spaced apart. The speculum is designed such that another identical speculum can be stacked on the original speculum.