An optical rotary junction module for an OCT system according to the present invention includes an OCT connection part having a screw thread formed on an outer peripheral surface thereof, the OCT connection part being connected to an OCT system configured to produce light, a connecting/fixing part having a screw thread formed on an inner peripheral surface thereof and screw-coupled to and engaging with the screw thread formed on the outer peripheral surface of the OCT connection part, a first housing having a screw thread formed on an inner peripheral surface of one end thereof and a screw thread formed on an inner peripheral surface of the other end thereof, the first housing having one end screw-coupled to the connecting/fixing part, a second housing screw-coupled to the screw thread formed on the inner peripheral surface of the other end of the first housing, a hollow motor inserted into the second housing and configured to generate rotational power, and an adapter configured to be coupled to an imaging catheter configured to be inserted into a blood vessel of a human body and transmit light received from the OCT system. The optical rotary junction module has the effects of reducing noise generated during high-speed rotation, and preventing failure caused by abrasion or the like. Moreover, the module may be structurally simplified and reduced in size, and the product cost per unit thereof may be lowered by minimizing the components.

A device for minimally invasive, inter-layer surgical procedures advantageously forms a wedge for advancing between adjacent tissue layers and provides a jaw that can be actuated to create a working space for a cutting tool and other instruments within a plane between the tissue layers. The device may also usefully employ an open or wireframe structure for the opposing jaws to preventing tissue or fluid accumulation between the jaws and maximize visibility around the surgical site.

A device for minimally invasive, inter-layer surgical procedures advantageously forms a wedge for advancing between adjacent tissue layers and provides a jaw that can be actuated to create a working space for a cutting tool and other instruments within a plane between the tissue layers. The device may also usefully employ an open or wireframe structure for the opposing jaws to preventing tissue or fluid accumulation between the jaws and maximize visibility around the surgical site.

A dilator releasably connected with an endoscope to dilate a stricture as the dilator that is releasably connected to a portion of a cylindrical body of the endoscope passes through the stricture. The endoscopic dilator is moveable between an open position and a closed position configured to enable the dilator to be secured to the endoscope. When the dilator is in the closed position, an inner surface or a component on the inner surface of the dilator frictionally secures dilator to the portion of the cylindrical body of the endoscope. When in the open position, the dilator is not frictionally secured to the portion of the cylindrical body of the endoscope.

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.

A laparoscopic surgery system calibrator and method for using the same are provided. The laparoscopic surgery system calibrator comprises a tool-retaining apparatus and at least one machine. The tool-retaining apparatus is constructed to releasably secure a surgical instrument having at least one fiducial marker thereon. The at least one machine is coupled to the tool-retaining apparatus to pivot the tool-retaining apparatus through a set of poses once the surgical instrument is secured by the tool-retaining apparatus.

An image processing device is an image processing device configured to cause a display to display three-dimensional data as a three-dimensional image, the three-dimensional data representing a biological tissue. The image processing device includes: a control unit configured to detect a series of positions of a catheter inserted into the biological tissue from data obtained in time series by a sensor observing the surrounding of a lumen of the biological tissue while moving in the lumen, and to switch a display mode between a first mode for displaying a first figure representing the series of positions in the three-dimensional image, and a second mode for displaying a second figure representing one position among the series of positions in the three-dimensional image.

The lighted surgical access system is provided that includes a circumferential retractor and a plastic optical fiber (POF) attached thereto. The circumferential retractor retracts and protects a patient’s body opening while the POF illuminates the internal surgical site, body cavity and/or body opening.

A flexible endoscope of the present invention includes a catheter portion and a connection plug. The catheter portion includes an image guide, a light guide, and a catheter tube that surrounds the image guide and the light guide in a longitudinal direction, and the connection plug includes a hollow cover that accommodates the proximal end of the catheter tube, a flexible tube that protrudes from the hollow cover and through which the catheter tube is passed, a first connection terminal that is connected to the light guide extending from the proximal end of the catheter tube, and a second connection terminal that is connected to the image guide extending from the proximal end of the catheter tube. The image guide and the light guide are slidable inside the catheter tube, and at least one of the image guide and the light guide is arranged curved inside the hollow cover of the connection plug.

A two-piece medical instrument for installing an expandable interbody (intervertebral) spine implant via an endoscope, has a handle assembly and a shaft assembly configured for extension through the endoscope, the shaft assembly holding an expandable interbody spine implant when the shaft assembly is fully received by a head of the handle assembly, and releasing the spine implant upon retraction of the shaft assembly from the head of the handle assembly. The shaft assembly has a rod with a longitudinal bore and a sleeve situated on the rod that axially moves relative to the rod in response to the reception into and retraction from the handle assembly head, with the sleeve controlling capture and release of the implant by the rod. The distal end of the rod has a clamp formed by jaws that flex to capture and release the implant.