34 results about "Endoscopic stent" patented technology

The present invention is directed to an endoscopic stent delivery device. The device includes an endoscope having an elongate shaft including a proximal end, a distal end, an outer wall and a longitudinal working channel through the elongate shaft defining an inner wall of the elongate shaft; a stent juxtaposingly disposed to a distal portion of the inner wall; and an inner tubular member slidably disposed within the working channel and having a stent holding member engaging an interior portion of the stent for releasably securing the stent to the distal portion of the inner wall. The device may further include a viewing device disposed at the distal end of the endoscope and / or an illuminating device disposed at the distal end of the endoscope.

The invention discloses a positioning device of an oral implanting robot vision navigation system. The positioning device comprises a tray, a marking plate, a connecting rod, an opening retainer, an endoscope support and retaining screws. A tray handle of the tray is fixed through one retaining screw after being matched with a tray inserting portion of the connecting rod in position through a connecting rod inserting hole. A retaining screw hole B in the marking plate is fixed through one retaining screw after being matched with a retaining screw hole C of a connecting portion A of the connecting rod in position. The opening retainer is meshed with the interior of an opening retainer clamping groove in the tray through a toothed opening in the lower portion of the opening retainer. The endoscope support is fixed through one retaining screw after being matched with a retaining screw hole D in the endoscope support in position through an endoscope support inserting hole. According to the scheme, the operation steps are simplified, after the appropriate tray is selected according to clinic requirements, the tray can be stably fixed to a dentition by the adoption of a silicone rubber impression film preparation method, the tedious steps needed by manufacturing a device loaded on the dentition through a membrane pressing method are omitted, and preoperative preparation time and the patient treatment frequency are reduced.

The invention relates to the field of medical apparatus and instruments and in particular relates to a guide device of a surgical laser positioning system, a measuring pen, an aspiration syringe and an endoscopic stent. The guide device of the surgical laser positioning system comprises a main body with an inner laser calibration channel, a calibration target arranged on the peripheral wall of the main body and vertical to the axial direction of a laser guide channel, and a calibration glass bead arranged in the inner laser calibration channel of the main body. Through the guide device of the surgical laser positioning system, the laser path can be fully used, so that the surgical angle can be determined when surgical tools are used for performing an operation.

A stent delivery system is disclosed that has an outer assembly and an inner assembly that accommodates a stent. The inner assembly further has an external assembly contact area projecting from its surface that frictionally contacts an inner surface of the outer assembly. The contact area is positioned at one end of the inner assembly, proximal to the stent accommodating area. Also disclosed is a method of using the stent delivery system.

An endoscopic stent for implantation in a patient following sleeve gastrectomy or biliopancreatic diversion with duodenal transposition comprises a stent portion comprising a proximal portion, the proximal portion Defined by a length of about 50 mm to about 200 mm; an enlarged intermediate portion having an enlarged diameter relative to the proximal and distal portions and defined by a length of about 20 mm to about 80 mm; and a distal portion and a polymeric sheath portion joined to and extending distally from said distal end portion of said stent.

An endoprosthesis includes a stent having an inner surface defining a lumen and an outer surface; and a polymeric cover on the outer surface of the stent. The polymeric cover includes a base and adhesion elements. When the endoprosthesis is expanded to the expanded state in a lumen defined by a vessel wall, the adhesion elements create an interlock between the vessel wall and the endoprosthesis.

The invention discloses an ear, nose and throat endoscope bracket, which includes a support column, a support device is provided at the bottom of the support column, and the support column is connected with a mounting frame through a lifting device, and the mounting frame is connected with a position adjusting device. A fixed frame, the inner bottom side wall of the fixed frame is fixedly connected with a connecting rod, the upper end of the connecting rod is fixedly connected with a spherical shell, and the top side wall, the right side wall and the left side wall of the spherical shell are respectively provided with The first through hole, the second through hole and the third through hole. The invention is reasonable in design and ingenious in conception. Even if the doctor's hand shakes, the angle and position of the endoscope can be automatically adjusted, so that the surgical field of view is clear and stable, which brings more convenience to clinical work and reduces the hidden danger of visual field safety.