34 results about "Endoscopic stent" patented technology

A system for endoscopic suturing is provided having an endoscope, such as a gastroscope, with a distal end locatable in the body of a patient and a flexible shaft extending to the distal end, a flexible accessory tube coupled to the endoscope to be movable relative to the endoscope's shaft, and a tip coupled to the shaft of the endoscope having an opening through which one end of the accessory tube is received. The system further includes a tissue suturing instrument and a suture securing instrument. Each of these instruments has a distal end coupled to a partially flexible shaft locatable through the accessory tube.

A system for endoscopic suturing is provided having an endoscope, such as a gastroscope, with a distal end locatable in the body of a patient and a flexible shaft extending to the distal end, a flexible accessory tube coupled to the endoscope to flex relative to the endoscope's shaft, and a tip coupled to the shaft of the endoscope having an opening through which one end of the accessory tube is received. Tissue suturing and suture securing instruments are provided each having a sufficiently flexible shaft locatable through the accessory tube.

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.

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.

A system and method for using a variable direction of view endoscope in conjunction with an electromechanical endoscope holder.

Methods and assemblies for dilating and / or delivering a stent into a body cavity or vessel is described. The assembly is particularly suited for the dilation, delivery and fixation of a stent in a body cavity, such as in a stricture in the esophagus, and includes a guidewire, an endoscope having a dilator cap affixed to its distal end, a stent, and a flexible stent delivery device. The dilator cap can be customized to various sizes, depending upon the interior diameter of the stricture to be dilated, and can be interchanged with the other dilator caps on the distal end of the endoscope. The endoscope-dilator assembly can be slid distally down the guidewire to the stricture to be dilated, and the stent can then be delivered distally along the guidewire using a delivery device. The stent delivery device and the endoscope-dilator assembly can be retracted proximally along the guidewire through the interior of the stent, leaving the stent in place in the stricture.

A hand operation portion of an endoscope is held by an endoscope holder of a holding device, and an insertion auxiliary member is held by an auxiliary member holder. The endoscope holder and the auxiliary member holder are slidably supported along a guide rail on a stage, and linearly moved toward a mouth of a patient.

Provided is an adapter which is specifically configured for selectively maneuvering a distil tip of a scaler in close proximity to an endoscope tip of an endoscope. The adapter comprises a scaler holder and an endoscope holder. The scaler holder is configured to support the scaler. The endoscope holder is connected to the scaler holder and is configured to moveably support the endoscope. The adapter further comprises a thumbwheel which eccentrically couples the endoscope holder to the scaler holder such that rotation of the thumbwheel effectuates rotation of the endoscope tip about the distil tip of the scaler.

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 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.

An endoscope manipulator for performing robot-assisted endoscope manipulation comprises a movable robot base with a hollow trunk and a vertical lifting joint; a passive joint set with one end mounted to an upper end of the vertical lifting joint, for manually setting an initial pose of the endoscope; an active joint set mounted to another end of the passive joint set, for adjusting pose control of the endoscope intra-operatively; and a compliant endoscope holder mountable to an end-effector of the active joint set, which passively changes to a compliant state upon an external force exceeding a threshold being applied to an endoscopic lens held by the compliant endoscope holder.

The present invention provides a high-precision video measurement system of a thin tube inner wall. Specifically, the high-precision video measurement system of the thin tube inner wall includes a supporter and a platform disposed on the supporter. The platform is provided with a precision guide rail. The mobile platform is slidably mounted on the precision guide rail, and is also provided with a thin tube rotation fixture. One end of the precision guide rail is provided with an endoscope. The endoscope is connected and mounted on the platform through an endoscope holder. The edge of the platform is also provided with an operation platform. The left of the operation platform is provided with a signal display device. The present invention not only reconstructs the inner wall of the pipeline fast in three dimensions to achieve high-precision detection of defects, but also completes the cross-sectional graphic data collection of the thin tube inner wall with a curvature radius greater than 100 mm with the synergistic effect of a spatial curvature sensor. The mechanical rotating mechanism is simple, the difficulty of operation is low, and low-cost high-precision testing standards are achieved.

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.

A medical procedure drape, for use during a diagnostic and therapeutic procedures performed on a patient supported by a patient cart, including a cover and a holder for the endoscope. The cover superimposes a portion of the patient and a portion of the patient cart. The endoscope holder is fixed to a boundary of the cover and extends above the level of the patient support surface on the patient cart. The endoscope holder retains and supports the endoscope during insertion and at other such times that the endoscopist may wish to set the endoscope aside to perform other tasks.

The invention provides an endoscope bracket and an operating method thereof. The endoscope bracket comprises a base, a central supporting rod, protection tubes, protection tube fixing members, and anupper bracket assembly which is rotatably fixed to the central supporting rod. When an endoscope is clamped in the opening of the upper bracket assembly, the insertion portion of the endoscope is inserted and accommodated in the corresponding protection tube; the protection tubes corresponding to the opening in different operation modes of the endoscope bracket are different, and the upper bracketassembly is rotated to achieve switch between different operation modes. The endoscope bracket can protect and isolate the endoscope under different conditions, prevent the damage and cross infectionof the endoscope, and facilitate the operation under different states 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.

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.

The invention discloses an adjustable digestive endoscopic stent including a base. The left end of the upper surface of the base is provided with a U-shaped bracket. A left end of that U-shape bracketis provided with a fixed limit block at the left end of the upper surface of the chassis. A slide groove is arranged on the upper surface of the base on the right side of the fixed stopper. At that right end of the slide groove, a fixing plate is arranged on the upper surface of the base. A sliding limit block is slidably connected with the sliding groove. The sliding stopper is inside the U-shaped bracket. The right side of the sliding limiting block is provided with a stud. An end of the stud remote from the sliding limit block passes through a threaded hole in the fixing plate and extendsto the outside. A light guide disinfection box is arranged on that inn top side of the U-shaped bracket, which can fix the patient's head, prevent digestive endoscope from causing injury to the digestive tract of the patient and trouble to the doctor in operation, sterilize the outer surface of the light guide, avoid esophageal infection caused by carrying the light guide into the patient, and collect vomitus of the patient, wherein the light guiding disinfection box is arranged on the outer surface of the U-shaped bracket.

A medical procedure drape, for use during a diagnostic and theraputic procedures performed on a patient supported by a patient cart, including a cover and a holder for the endoscope. The cover superimposes a portion of the patient and a portion of the patient cart. The endoscope holder is fixed to a boundry of the cover and extends above the level of the patient support surface on the patient cart. The endoscope holder retains and supports the endoscope during insertion and at other such times that the endoscopist may wish set the endoscope aside to perform other tasks.

The invention discloses an adjustable and fixable cerebral endoscope tube sheath. The adjustable and fixable cerebral endoscope tube sheath comprises a fixing base, wherein the top of the fixing baseis fixedly sleeved by a tube sheath fixing ball head in a connected mode through a ball head locking cap, a plurality of uniform and symmetrical second cutting grooves are formed in top of the tube sheath fixing ball head, and a spherical surface is arranged at the bottom of the tube sheath fixing ball head; the middle of the tube sheath fixing ball head is sleeved by the base of an endoscope bracket in a connected mode, the interior of the top of the tube sheath fixing ball head is sleeved by a tube sheath body in a connected mode, and a tube sheath locking ring is arranged on the exterior ofthe top of the tube sheath fixing ball head; and an endoscope fixing base is fixedly installed on the top of the endoscope bracket. Stable support can be provided for multiple instruments of doctorswhen cerebral hemorrhage operation is performed through a cerebral endoscope so that hands of the doctors can be freed, and the cerebral endoscope tube sheath can be operated by one person; and a small ball head which is used for providing support points for an aspirator and double-click electrocoagulation can be rotated at will, and the endoscope which is mounted on the endoscope fixing base canhave any rotary angles through adjustment, so that observation of hematoma is facilitated, and application is more convenient.

The invention discloses an endoscopic image precision alignment device, which comprises a standard definition pattern plate, a main body supporting frame, a hard-pipe endoscope and a data processing system, wherein the main body supporting frame comprises a standard definition pattern plate bracket, an endoscope bracket, a U-shaped bracket and a base; an ocular adjusting sleeve is arranged on the U-shaped bracket; one end of the hard-pipe endoscope is screwed into the ocular adjusting sleeve and the other end is arranged on the endoscope bracket; the data processing system is provided with a CCD (charge coupled device) interface lens; a CCD interface lens adjusting sleeve is arranged on one side of the CCD interface lens; a CCD is arranged on one side of the CCD interface lens adjusting sleeve; and a computer is arranged on one side of the CCD. The alignment device disclosed by the invention is skilful in structure and high in adjustment precision, and is capable of detecting the definition of an endoscopic optical system dynamically in real time by virtue of computer software, so as to improve alignment precision and efficiency; and image information is acquired through a CCD imaging system, and the image information is analyzed by virtue of a contrast formula, so as to dynamically and directly display a measurement result.

The invention discloses a bidirectional rotary joint with a balance mechanism. The bidirectional rotary joint is characterized in that mandrels of two rotation pairs are fixed on a support, and when the two rotating pairs are arranged in middle positions, axes of connecting rod shaft heads on rotatable outer cylinders of the two rotating pairs coincide; and multiple adjusting holes are formed in end covers of the outer cylinders, springs and adjusting plates are arranged on the mandrels in a sleeving mode, inner rings of the springs are fixed in positioning grooves in the mandrels, the adjusting plates can rotate on the mandrels, pin holes are formed in the adjusting plates respectively, pins penetrate through the pin holes respectively, and are inserted into the adjusting holes in the endcovers, and outer rings of the springs fixedly hook on the pins. The bidirectional rotary joint is used in a rod-shaped serial connection mechanism, and rod pieces can do two-way rotary motion; whenthe rotating pairs are in the middle positions, the axes of the front rod piece and the rear rod piece coincide, so that the occupied space of the mechanism is small; when the rotation of the rod pieces need force to balance, torsion of the springs can be conveniently adjusted to provide balance force; and according to the bidirectional rotary joint, the performance of the rod-shaped serial connection mechanism can be remarkably improved, and especially the performance of mechanisms such as an endoscope support and the like can be remarkably improved.

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.

The present invention is directed to a system to improve the safety of robotically assisted minimally invasive surgery. The system includes an endoscope holder, an accelerometer, and a controller. The accelerometer is configured to track motion of the patients head and transmit that information to the controller. The controller is configured to operate the endoscope holder. When the accelerometer detects patient head movement, the controller then retracts the endoscope, via the endoscope holder. The system of the present invention can be used for endoscopic surgery for otolaryngology and neurosurgery. It can also be used for other surgical situations with similar requirements and constraints.

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.

A pediatric tumor minimally invasive auxiliary device effectively solves the problems of complicated operation and inconvenient storage in existing endoscope supports. The minimally invasive auxiliary device of the present invention comprises an operating bed. A sliding rod is detachably connected to the lower side of the operating bed. A sliding sleeve is slidably connected to the sliding rod. A supporting shaft is fixed to the front end of the sliding sleeve. A swing rod is rotatably connected to the supporting shaft. A rotatable shifting rod is arranged in front of the sliding sleeve. A waist-shaped groove is formed in the shifting rod. A receding groove with an upward opening is formed in the vertical part of the swing rod. A telescopic rod is slidably connected into the receding groove. Sliding grooves communicate with the front and rear sides of the receding groove respectively. A sliding block is slidably connected to the interiors of the two sliding grooves. The telescopic rod is fixedly connected with the sliding block. An adjusting device is fixed to the end, away from the swing rod, of the telescopic rod. A guide groove consistent with the sliding grooves in shape is formed in the front side of the swing rod. A sliding column is fixed to the front side of the sliding block. The front end of the sliding column penetrates through the guide groove and is inserted into the waist-shaped groove. The minimally invasive auxiliary device is novel in conception, ingenious in structure, convenient to operate and high in practicability, and improves utilization rate.