A rotational device for rotating an endoscope having a stationary assembly, a rotatable assembly, which includes a distal coupling means for coupling to an endoscope, a drive means, which is embodied for putting the distal coupling means into rotational motion for rotating an endoscope connected to the distal coupling means, a proximal coupling means at the stationary assembly for coupling to a camera device, and an optical unit for transmitting light from the distal coupling means to the proximal coupling means.

A cannula assembly including a camera system to help provide multiple viewing angles of a surgical site. This added visualization provides the surgeon with more comprehensive feedback during the surgical procedure, leading to better patient outcome and a reduction in the surgical failure rate. The cannula has a main lumen and a smaller secondary lumen and is insertable into the surgical site for easy surgeon adaptation. The camera is coupled to the secondary lumen toward the side of the cannula. This allows the camera to provide visualization without obstructing the main lumen for the use of tools. The camera wiring runs through a long tube connected to the camera and through a handle at the end of the tube without blocking access to the surgical site.

A protective cap for use on arthroscopic instruments and sheaths disposed over arthroscopic instruments. The cap protects the distal end of the instrument from accidental damage caused by other instruments used during a surgical procedure. The cap has a flange disposed within an inner diameter of a bore within the cap to prevent the sheath from being pushed into the cap.

A medical apparatus includes: an endoscopic subsystem, a medical instrument, an imaging stylet; and a system console with data-processing capability. This image-guided system calculates, in-real time, a position of the instrument relative to a target within patient body to guide and control accurate placement of the instrument to the target. The stylet is configured to acquire image data intra-operatively. In addition, the stylet has a sensing region along a flexible distal portion of its length. The system console communicates with the stylet to calculate the position of the instrument inside a patient by using intra-operative image data of surrounding tissue acquired by the stylet, distributed strain data measured by the console within the sensing region of the stylet, and preoperative image data of the patient anatomy. The stylet incorporates optical guides that are advantageously used both for imaging and for distributed strain sensing, enabling miniaturization of the stylet for accomplishing an intra-operative image guidance and navigational feedback without increasing invasiveness or compromising safety of the guided medical procedures.

A prism holder for use with a surgical instrument, having a prism. The prism holder including: a casing for receiving the prism; and at least one prism pressure element configured to be brought into contact with a pressure surface of the prism; wherein the casing having an opening for arrangement of the at least one prism pressure element in the opening.

A user interface device for a surgical simulation system, comprising a rigid shaft pivotably supported by a frame, and movable in the axial direction but fixed with respect to rotation around its longitudinal axis, and a handle having a sensor body rigidly attached to said rigid shaft, and a grip portion rotatable around said longitudinal axis relative said sensor body. The handle further comprises a rotator sleeve rotatable around said longitudinal axis relative said sensor body and said grip portion, a rotation sensor adapted to detect rotation of said rotator sleeve in relation to said sensor body, and a signal interface mounted on said sensor body and connected to receive a first detection signal from said rotation sensor. Through this design, all sensor elements and electronic circuitry can be provided in or adjacent to the sensor body, leading to an efficient design and manufacturing.

A laparoscopic imaging apparatus is described herein. The laparoscopic imaging apparatus includes a shaft having a proximal end opposite a distal end, wherein the proximal end is configured for attachment to an actuator, and the distal end is configured for attachment of a laparoscopic tool and for insertion into patient anatomy. The laparoscopic tool pivots on a first gimbal apparatus that is actuable from the actuator at the proximal end of the shaft, to rotate the laparoscopic tool about a longitudinal axis of the shaft and, further, to rotate the laparoscopic tool about at least a second axis that is orthogonal to the longitudinal axis.

There is provided an image pickup unit which is capable of achieving a focused image of a favorable depth of field while changing a visual field direction of observation.

An image pickup unit, comprises a front group which includes a prism that can be rotated for changing a visual field direction, and a rear group which includes a lens group and an image pickup element, wherein the image pickup unit includes a prism rotating section which rotates the prism for changing the visual field direction, and a focusing section which does not change a focused range, as an angle of visual field direction with respect to a longitudinal direction of the image pickup unit becomes smaller than a specific angle, and which moves the focused range toward a near-point side, as an angle of visual field direction with respect to the longitudinal direction of the image pickup unit becomes larger than the specific angle, in accordance with a rotation of the prism, and the focusing section, in a case in which the specific angle is not smaller than 30°, moves the focused range toward the near-point side.

An endoscope optical system unit according to the present invention, includes, an endoscope illuminating optical system which includes, a light-emitting section, and a first optical-path deflecting prism group which takes in illumination light emitted from the light-emitting section, and irradiates light to a subject upon deflecting an optical path, and the first optical-path deflecting prism group includes three prisms in order from an object side which are, a first prism, a second prism, and a third prism, and the first prism, the second prism, and the third prism are disposed to be mutually adjacent, and a direction of irradiation of the illumination light is let to be variable to a first direction by rotationally moving the first prism with respect to the second prism, and the direction of irradiation of the illumination light is let to be variable to a second direction which differs from the first direction, by rotationally moving the first prism and the second prism integrally, with respect to the third prism; and an endoscope objective optical system, wherein the endoscope objective optical system includes a second optical-path deflecting prism group, and a lens group, and the second optical-path deflecting prism group includes three prisms in order from the subject side, a fourth prism, a fifth prism, and a sixth prism, and the fourth prism, the fifth prism, and the sixth prism are disposed to be mutually adjacent, and a visual field direction is let to be variable to the first direction by rotationally moving the fourth prism with respect to the fifth prism, and the visual field direction is let to be variable to the second direction which differs from the first direction, by rotationally moving the fourth prism and the fifth prism integrally, with respect to the sixth prism, and the first optical-path deflecting prism group and the second optical-path deflecting prism group are disposed such that a third axis of rotation when the fourth prism rotates with respect to the fifth prism, and a first axis of rotation when the first prism of the endoscope illuminating optical system rotates with respect to the second prism, become coaxial, and the first optical-path deflecting prism group and the second optical-path deflecting prism group are disposed such that a fourth axis of rotation when the fourth prism and the fifth prism rotate integrally with respect to the sixth prism, and a second axis of rotation when the first prism and the second prism rotate integrally with respect to the third prism, become coaxial, and both the visual field direction of the endoscope objective optical system and the direction of irradiation of the illumination light of t

An endoscope includes: an operation portion provided continuously with a proximal end of a rigid insertion portion having a longitudinal axis; an optical element disposed at a distal end part of the insertion portion so as to be rotationally movable around a first shaft perpendicular to the longitudinal axis and a second shaft parallel to the longitudinal axis; a single operation member disposed at the operation portion and swingable forward, backward, leftward, and rightward around a third shaft and a fourth shaft perpendicular to each other; a first transmission member that transmits a rotational force around the first shaft to the optical element by a tilting operation of the operation member around the third shaft; and a second transmission member that transmits a rotational force around the second shaft to the optical element by a tilting operation of the operation member around the fourth shaft.