47 results about "Duodenoscopes" patented technology

The utility model relates to a double-J type self-falling pancreatic duct support device which comprises a drainage section catheter, a pancreatic duct fixing part and a duodenum fixing part, the pancreatic duct fixing part and the duodenum fixing part are fixed at the two ends of the drainage section catheter respectively, the pancreatic duct fixing part is of an arc-shaped structure, the duodenum fixing part is of an O-shaped structure, and the drainage section catheter and the duodenum fixing part are integrally formed. One end of the arc-shaped structure is connected with the drainage section catheter in the tangential direction of the arc, the other end of the arc-shaped structure extends by a certain distance in the tangential direction of the arc, and the O-shaped structure of the duodenum fixing part is connected with the drainage section catheter in the tangential direction of the arc. By adopting the double-J-shaped self-falling pancreatic duct support device, arc structures with different radians can be adopted according to the requirement of clinical pancreatic duct drainage time, so that the pancreatic duct support device can automatically fall in different time. The pancreatic duct can be retrograde placed under a duodenoscope to replace an existing hard plastic support or a double-J-shaped support which cannot fall off automatically, and therefore secondary endoscopic treatment is avoided.

An endoscope (e.g., a duodenoscope) includes a bifluidic valve for controlling the flow of water and air through a flexible tubular probe to respectively irrigate or insufflate an internal cavity of a patient. Some examples of the bifluidic valve include a flexible valve seal that allows air to flow in one direction but not in reverse. Different examples of the valve seal include various features, such as a set of overlapping flexible flaps arranged in a spiral, a rubber-like disc with an array of cross-slit perforations that open in response to a positive pressure differential across the disc, a resiliently expandable cone with multiple concentric ridges, a valve spool encircled by an elastic tubular piece that can expand radially to open an air passageway in the valve spool, and an elastic tube that in reaction to being compressed or otherwise shortened bulges radially outward to block an annular air passageway.

The invention discloses a duodenoscope reprocessing detection method based on machine vision, particularly relates to the field of machine vision, and is used for solving the problem that residual pollutants are difficult to accurately position and remove after reprocessing of an existing duodenoscope. The method comprises the following steps of: applying illumination disturbance with controllable incident angle, wavelength and polarization state to the outer surface and the inner cavity of the duodenoscope, collecting an image sequence under the disturbance, and extracting a pixel block time sequence brightness response characteristic; calculating a brightness difference residual error and a consistency weight under different incident angles, identifying a candidate abnormal region, and generating a difference atlas reflecting the candidate abnormal region and a clean reference response characteristic parameter; carrying out segmentation, connectivity analysis and clustering on the difference atlas, and delimiting a three-dimensional space boundary of the pollution suspicious area in combination with three-dimensional coordinate continuity and curved surface normal consistency; directional cleaning and repeated detection are carried out in the range, and cyclic detection is carried out until the polluted area disappears, so that high-precision detection and efficient cleaning are realized.

The present application relates to the technical field of endoscopy, and particularly discloses a tube sheath and an endoscope system, the tube sheath comprising a tube sheath body, the tube sheath body having an axially-through first channel, and a second channel radially penetrating the tube sheath body and communicating with the first channel being arranged at the distal end of the tube sheath body; in the above scheme, in the insertion stage of the tube sheath body, the endoscope can clearly see the tissue structure and obstacles in front through the first channel, improving the visibility of the insertion process and reducing the risk of blind insertion, and after the tube sheath body reaches the target position, the endoscope can be retracted so that the front end thereof is located at the communication position of the first channel and the second channel, and then the endoscope is operated so that the front end thereof is bent and inserted into the second channel, based on the guiding effect of the second channel on the front end of the endoscope, so that the endoscope can accurately enter the common bile duct from the side of the tube sheath body, thereby avoiding the dependence of the endoscope on the duodenoscope when exploring the common bile duct, and reducing the cost.

Disclosed are an endoscope forceps elevator, an endoscope distal end and a duodenoscope system. The bottom of the endoscope forceps elevator is in communication with an instrument channel and the endoscope forceps elevator is provided with a hinge part configured to be hinged with an endoscope distal end base; a positioning groove adapted to an instrument to be positioned is provided at the top of the endoscope forceps elevator; and a cutting edge and a guide surface are provided at a side of the endoscope forceps elevator, and the guide surface is located between the positioning groove and the cutting edge. The cutting edge is movable in contact with the inner side surface of the distal end base so as to guide the instrument to be positioned in a first deflected and extended state onto the guide surface.

The invention discloses a free directional guide visual guide wire mirror device. The device mainly comprises a handheld handle, an imaging optical fiber, an illumination optical fiber, a miniature view finding objective lens group, a photoelectric conversion image acquisition group, a flexible outer sleeve and a front-end free directional guide end, and the outer diameter of the device is smaller than 0.9 mm. And through a unique free directional guiding function, the visual probe can enter a superfine lumen and a narrow part for visual exploration on the premise of not damaging the mucous membrane of the cavity. The endoscope can be applied to medical scenes such as fallopian tube cavity examination, assistance of a duodenoscope in bile duct operation and the like, the application limitation of a traditional endoscope is effectively broken through, ray radiation hazards are reduced, the cross infection risk is reduced, and an innovative technical means is provided for medical diagnosis and treatment.

A mucosal impedance measuring device for measuring a pressure-controlled impedance of mucosa includes an endoscope, more specifically a duodenal scope, having an elongated body extending to a scope end in which the scope end is articulable relative to the elongated body and further having a plurality of impedance measuring electrodes disposed on an axial-most face of the scope end. The plurality of impedance measuring electrodes disposed on an axial-most face of the scope end can be placed into contact with mucosa, especially in the duodenum or colon, to establish the health, integrity, and / or condition of the mucosa by taking impedance measurements of the mucosa.

Disclosed herein is a periscope device to provide forward viewing with a duodenoscope. The periscope device includes an elongated body and a deployment mechanism. The elongated body has a proximal end and a distal end. A folding axis of the elongated body defines an elongated section and a folding section of the elongated body. The folding section is located at the distal end of the elongated body and includes a mirror attached to an outer surface. The deployment mechanism is connected to the proximal end of the elongated body and is configured to cause the folding section to rotate about the folding axis at an angle of rotation with respect to the elongated section of the elongated body.

The invention relates to a robot system for ERCP and operative treatment thereof. The robot system comprises a duodenoscope control robot, an instrument control robot, a doctor console, an operating bed, an X-ray machine and an endoscope workstation. The duodenoscope control robot comprises a duodenoscope conveying robot and a duodenoscope control robot; the duodenoscope conveying robot comprises an endoscope conveying vehicle body and an endoscope conveying execution system, and the duodenoscope control robot comprises an endoscope control vehicle body and a duodenoscope control execution system; the instrument control robot comprises an instrument control vehicle body and an instrument execution system, the instrument execution system comprises a guide wire operation unit, an instrument operation unit and an auxiliary unit, and the instrument output end of the instrument operation unit is connected with a butt joint port of the guide wire operation unit. By means of the system, the ERCP operation can be completed more rapidly and stably, participation of medical staff is reduced, doctor resources are released, and the ERCP operation staff are prevented from being hurt by radiation.

The utility model provides a double-channel biliopancreatic pressure measuring catheter which comprises a catheter section I, a catheter section II, a catheter section III and a catheter section IV, a first guide wire channel is arranged in the catheter section I, the catheter section I is connected with the catheter section II, and a second guide wire channel and a first data transmission line channel are arranged in the catheter section II; the front end of the catheter section II is wrapped with a metal tube, the metal tube is provided with an open groove, and a pressure sensor is arranged in the open groove; the catheter section III and the catheter section IV are connected with the catheter section II, and a second data transmission line channel and a third guide wire channel are arranged in the catheter section III and the catheter section IV respectively; the tail of the catheter section III is provided with a pressure sensor connector, and the tail of the catheter section IV is provided with a guide wire connector. The pressure measuring device can be placed into duodenal papilla sphincter, common bile duct and pancreatic duct through a duodenoscope and a gastroscope forceps channel under the guide of a guide wire to measure the pressure in the duodenal papilla sphincter, the common bile duct and the pancreatic duct.

The present disclosure relates to an aspiration valve for an endoscope, such as a duodenoscope, that includes a valve housing with strategically sized opposing ports to provide a venting configuration and an aspiration configuration. In the aspiration configuration, the endoscope delivers suction to a distal end of a flexible tubular probe of the endoscope. In the venting configuration, the suction is mostly closed off at the distal end. The valve housing has a suction source opening to a vacuum pump, a venting opening that can be open to atmosphere, and a probe opening to a suction tube in the flexible tubular probe. In some examples, the suction source opening is larger than the venting opening, which in turn is larger than the probe opening. When so sized, the aspiration valve can switch between the venting configuration and the aspiration configuration without relying on any moving parts. An operator can switch into the aspiration configuration by simply covering the venting opening.

The invention relates to devices and methods for visualizing and / or interacting with internal body tissues. More particularly, the present invention relates to endoscopic methods and devices for visualizing and / or interacting with the gastrointestinal and / or pancreaticobiliary systems. Further, the present invention relates to one use or disposable devices for visualizing and / or interacting with the gastrointestinal and / or pancreaticobiliary systems, such as with duodenoscopes. In general, a device for visualizing and / or interacting with internal body tissues may generally include a handpiece, a distal assembly, and / or a connecting conduit. A plurality of conduits and / or channels may span through the connecting conduit from the handpiece to the distal assembly, and may, for example, carry fluid / gas connections, electrical / sensor connections, such as for a camera, mechanical connections and / or carry medical devices through a working channel. The device may utilize or be utilized with a machine learning system for training and modeling, and giving guidance to a user.

This invention discloses a machine vision-based method for detecting contaminant residues after duodenoscope reprocessing, specifically in the field of machine vision, to address the problem of accurately locating and removing contaminant residues after existing duodenoscope reprocessing. The method involves applying controlled incident angle, wavelength, and polarization state light perturbations to the outer surface and inner lumen of the duodenoscope, acquiring image sequences under perturbation, and extracting temporal brightness response features of pixel blocks. Brightness difference residuals and consistency weights are calculated at different incident angles to identify candidate abnormal regions and generate a difference map reflecting their response characteristics to a clean baseline. The difference map is segmented, analyzed for connectivity, and clustered. Combining three-dimensional coordinate continuity and surface normal consistency, the three-dimensional spatial boundary of the suspected contamination area is delineated. Within this range, directional cleaning and retesting are performed, with repeated detection until the contamination area disappears, achieving high-precision detection and efficient cleaning.

The utility model provides a three-channel biliopancreatic pressure measuring catheter. The three-channel biliopancreatic pressure measuring catheter comprises a first catheter section, a second catheter section, a third catheter section and a fourth catheter section. A first guide wire channel and a first injection channel are arranged in the first catheter section; a second guide wire channel, a second injection channel and a first data transmission line channel are arranged in the second catheter section; the front end of the second conduit section wraps a metal tube; a pressure sensor is arranged in a groove of the metal tube; a third guide wire channel and a third injection channel are arranged in the third catheter section; a second data transmission line channel is arranged in the fourth conduit section; a guide wire joint and an injection joint are arranged at the tail of the third catheter section; the tail of the fourth catheter section is provided with a pressure sensor interface. The pressure measuring device can be placed into duodenal papilla sphincter, common bile duct and pancreatic duct through a duodenoscope and a gastroscope forceps channel under the guide of a guide wire to measure the pressure in the duodenal papilla sphincter, the common bile duct and the pancreatic duct, contrast agents or saline water can be injected to adjust the pressure of the common bile duct or the main pancreatic duct while the pressure is measured, and the maximum tolerance pressure is measured.

The utility model relates to the technical field of cleaning brushes, in particular to a duodenoscope multifunctional cleaning brush which comprises a cleaning handle, a bent brush head is fixedly arranged on the left side of the cleaning handle, a superfine brush head is fixedly arranged on the right side of the cleaning handle, and a thick brush head is fixedly arranged on the front face of the cleaning handle. A thin brush head is fixedly arranged on the back face of the cleaning handle, two brush heads are additionally arranged on the two sides of an original cleaning brush, and the novel soft endoscope cleaning brush with four functions is formed. Aiming at the complicated structure of the tip of the duodenoscope, the bent brush head is additionally arranged, and the bent brush head can be attached to the groove in the duodenoscope tip forceps lifting device, so that the contact surface of the groove is increased, and the cleaning quality is improved; and a superfine brush head is additionally arranged at the other end of the forceps lifting device, so that when a duodenoscope is used for treating a patient, the forceps lifting device can be repeatedly lifted and pulled down, and various pollutants can be conveyed to the movable interior of a steel wire of the forceps lifting device.

The utility model discloses a kind of free directional guiding visual guide wire mirror devices.The device is mainly composed of hand handle, imaging optical fiber, illumination optical fiber, miniature viewfinder objective group, photoelectric conversion image acquisition group, flexible outer sleeve and front end free directional guiding end, outer diameter is less than 0.9mm.Free directional guiding function is unique, can be visualized to explore in the premise of not harming cavity tract mucosa, into super thin tube cavity and narrow site.The medical scene such as oviduct cavity tract inspection, assisting duodenoscope to carry out intrahepatic duct operation can be applied to, effectively break through the application limitation of traditional endoscope, reduce the harm of radiation, reduce cross-infection risk, provide innovative technical means for medical diagnosis and treatment.

Fluorescent imaging systems for performing an endoscopic procedure, such as a retrograde cholangiopancreatography (ERCP) procedure may include a first light source for emitting light in the visible spectrum, or light in the near infrared (NIR) spectrum, or both. A light source bandpass filter may block the emitted light in the visible spectrum, or in the NIR spectrum, or both. A first sensor may be capable of detecting the light in the visible spectrum, or the light in the NIR spectrum, or both. A sensor bandpass filter may block the detected light in the visible spectrum, or in the NIR spectrum, or both. The first or a second light source, or the first or a second sensor, or combinations thereof, may be removably disposed on a duodenoscope.

The invention relates to the technical field of medical instruments, and provides an electronic control endoscope for duodenum, which comprises an endoscope body and a driving device, the endoscope body comprises an operation part, an insertion part, a forceps lifting device assembly, a flexible traction piece and a first power coupling assembly, the insertion part is connected to the operation part and extends in the direction away from the operation part, and the flexible traction piece is connected to the operation part; the clamp lifting device assembly is arranged at the end, away from the operation part, of the insertion part, the first power coupling assembly is arranged on the operation part, one end of the flexible traction piece is connected with the first power coupling assembly, and the other end of the flexible traction piece penetrates through the insertion part and is connected to the clamp lifting device assembly. The driving device comprises a second power coupling assembly, and the second power coupling assembly is used for driving the first power coupling assembly so as to control the action of the clamp lifting device assembly. The electrically controlled endoscope provided by the invention solves the problems of high operation complexity and the like of a duodenoscope.

An endoscope (e.g., a duodenoscope) includes a bifluidic valve for controlling the flow of a liquid (e.g., water) and a gas (e.g., air) through a flexible tubular probe to respectively irrigate or insufflate an internal cavity of a patient. The bifluidic valve can be a single component, an interconnected assembly of components, or a plurality of separate components. Some examples of the bifluidic valve include a stepped diameter valve spool with radial or circumferential fluid passageways. In some examples, the bifluidic valve includes a tube pincher that can stop the water or other liquid from flowing through a flexible tube by pinching the tube shut. Some example bifluidic valves include a valve housing that is resiliently flexible to urge the valve to a normally closed position. In some examples, selectively covering or uncovering a vent in the valve housing controls the flow of air for insufflation.

A suction valve for endoscopes (e.g., duodenoscopes) includes a valve element that rotates between open and closed positions in response to linear movement of a plunger. In some examples, a meshing gear arrangement provides the mechanical interaction between the plunger and the valve element. In some examples, the valve element's rotation is by virtue of at least portions of the valve element being resiliently flexible. In some examples, the valve element's resilience urges the plunger to its relaxed home position. In some examples, the axis about which the valve element rotates is parallel to the plunger's linear travel path. In some examples, the axis about which the valve element rotates is perpendicular to the plunger's linear travel path.

The utility model provides a laparoscope bile duct calculus taking-out device, and relates to the technical field of medical instruments, the laparoscope bile duct calculus taking-out device comprises an operating handle, one end of the operating handle is connected with a duodenoscope, a mechanism used for fixing the duodenoscope is arranged in the operating handle, the surface of the duodenoscope is fixedly sleeved with a shifting piece, and the shifting piece is connected with the operating handle. And a biliary tract sub-mirror is arranged in the duodenoscope. According to the device, the operation steps are very simple and convenient, the phenomenon that the duodenoscope possibly falls off after being used for a long time is avoided, the connecting efficiency of the duodenoscope and the operation handle is indirectly improved, and the practicability is greatly improved through the design.

The invention relates to the technical field of endoscopes, and particularly discloses a tube sheath and an endoscope system.The tube sheath comprises a tube sheath body, the tube sheath body is provided with an axially-through first channel, and the far end of the tube sheath body is provided with a second channel communicating with the first channel and penetrating through the tube sheath body in the radial direction; according to the scheme, in the insertion stage of the pipe sheath body, an endoscope can clearly see the tissue structure and obstacles in front through the first channel, the visibility of the insertion process is improved, the risk of blind insertion is reduced, after the pipe sheath body reaches the target position, the endoscope can be retreated to enable the front end of the endoscope to be located at the communicating position of the first channel and the second channel, and therefore the endoscope can be conveniently inserted into the pipe sheath body. The endoscope is operated to enable the front end of the endoscope to be bent and extend into the second channel, based on the guiding effect of the second channel on the front end of the endoscope, it is ensured that the endoscope can accurately enter the common bile duct from the side direction of the duct sheath body, and therefore the situation that the endoscope depends on a duodenoscope when extending into the common bile duct is avoided, and cost is reduced.

The invention relates to the technical field of endoscopes, and particularly discloses a tube sheath and an endoscope system.The tube sheath comprises a tube sheath body, the tube sheath body is provided with an axially-through first channel, and the far end of the tube sheath body is provided with a second channel communicating with the first channel and penetrating through the tube sheath body in the radial direction; according to the scheme, in the insertion stage of the pipe sheath body, an endoscope can clearly see the tissue structure and obstacles in front through the first channel, the visibility of the insertion process is improved, the risk of blind insertion is reduced, after the pipe sheath body reaches the target position, the endoscope can be retreated to enable the front end of the endoscope to be located at the communicating position of the first channel and the second channel, and therefore the endoscope can be conveniently inserted into the pipe sheath body. The endoscope is operated to enable the front end of the endoscope to be bent and extend into the second channel, based on the guiding effect of the second channel on the front end of the endoscope, it is ensured that the endoscope can accurately enter the common bile duct from the side direction of the duct sheath body, and therefore the situation that the endoscope depends on a duodenoscope when extending into the common bile duct is avoided, and cost is reduced.

The invention provides a duodenoscope, and relates to the technical field of endoscopes. The duodenoscope comprises a camera shooting assembly, the camera shooting assembly comprises a circuit board, a front-view camera shooting module and a side-view camera shooting module, the circuit board comprises a front-view circuit board section and a side-view circuit board section, the front-view circuit board section comprises a front-view rigid sub-section and a front-view flexible sub-section which are electrically connected in sequence, the front-view rigid sub-section is arranged on the front-view flexible sub-section, and the front-view flexible sub-section is arranged on the side-view circuit board section. The foresight camera module is arranged on the foresight rigid sub-section, and the foresight flexible sub-section is limited to form a bending structure. The side-view circuit board section comprises a side-view rigid sub-section and a side-view flexible sub-section which are electrically connected in sequence, the side-view rigid sub-section is arranged on the side-view flexible sub-section, the side-view camera module is arranged on the side-view rigid sub-section, and the side-view flexible sub-section is limited to form a bending structure. According to the invention, the difficulty and complexity of installing the dual-camera module in a narrow head end space can be reduced, and the reliability and the assembly efficiency of a product are improved.

The invention relates to the technical field of endoscopes, and discloses a duodenoscope system, a duodenoscope system control method and a storage medium. The duodenoscope system comprises a foresight camera module used for outputting illumination light for illumination and collecting a foresight image in the lens entering process; the side view camera module is used for outputting light of a target wave band to irradiate a target area and collecting an image of the target area in the treatment process; and the processor is used for controlling the front-view camera module and the side-view camera module to output light rays and outputting a front-view image or the target area image. The foresight camera module can realize illumination and image acquisition in the lens entering process, so that the convenience of a doctor in lens entering operation is improved; the side-view camera module can output light of a target wave band to irradiate a target area and collect an image of the target area, so that a doctor can quickly determine target tissue; the difference between operation and image recognition of different doctors on the duodenoscope system is reduced, and the overall medical quality is improved.

The duodenoscope fixing device comprises a double-balloon structure and an inflation and deflation structure which are detachably connected to the outside of a duodenoscope body, the double-balloon structure can enter the duodenum along with the duodenoscope body, the duodenoscope body is stabilized at the proper position of the duodenum according to the distance from the duodenal papilla to the pylorus of a patient, and the duodenoscope body is fixed to the position of the duodenoscope body. Therefore, the front end of the duodenoscope can be effectively prevented from being separated from the pylorus in the process of shortening the straight line of the duodenoscope body. Besides, the double-balloon structure has plasticity, the endoscope body is allowed to slide back and forth relative to the balloons moderately, the potential requirement of adjusting the tip of the endoscope body up and down within a small range in the axial adjustment process during transnipple biliopancreatic duct intubation is met, large-amplitude sliding of the endoscope body in the duodenum tip fine adjustment process is avoided, and the intubation operation difficulty can be reduced. And meanwhile, the inflating and deflating structure of the device is arranged on the operating handle of the duodenoscope, so that a doctor can operate with one hand conveniently, and the convenience and the flexibility of operation are improved.

The present invention provides an endoscope fixing bracket, comprising an endoscope clamp, a first connecting rod, a second connecting rod and a handle fixing rod, wherein the handle fixing rod is arranged in the left-right direction, the right end of the handle fixing rod is used to fix the duodenoscope in the left-right direction, the first connecting rod and the second connecting rod are both arranged vertically, the lower end of the second connecting rod is connected to the left end of the handle fixing rod, the lower end of the first connecting rod is connected to the upper end of the second connecting rod, the endoscope clamp is arranged at the upper end of the first connecting rod, and the endoscope clamp is used to clamp the endoscope so as to fix the endoscope in the left-right direction so that the endoscope is located above the duodenoscope. Preferably, the lower end of the second connecting rod is rotatably connected to the left end of the handle fixing rod around the front-back direction, and the lower end of the first connecting rod is rotatably connected to the upper end of the second connecting rod around the front-back direction. The endoscope fixing bracket of the present invention can make the bending amplitude of the mother-and-child scope insertion tube small and the bending length short, will not interfere with the inspection, and is easy to use.

The present invention relates to a robot system for ERCP and its surgical treatment, including a duodenoscope manipulation robot, an instrument manipulation robot, a doctor's console, an operating table, an X-ray machine, and an endoscopic workstation; the duodenoscope manipulation robot includes a duodenoscope delivery robot and a duodenoscope control robot; the duodenoscope delivery robot includes an endoscope delivery vehicle body and an endoscope delivery execution system, and the duodenoscope control robot includes an endoscope control vehicle body and a duodenoscope control execution system; the instrument manipulation robot includes an instrument manipulation vehicle body and an instrument execution system, and the instrument execution system includes a guide wire operation unit, an instrument operation unit, and an auxiliary unit, and the instrument output end of the instrument operation unit is connected to the docking port of the guide wire operation unit. This system can complete ERCP surgery more quickly and stably, reduce the participation of medical staff, release doctor resources, and avoid radiation damage to ERCP operators.

The present invention provides a multi-directional papillary sphincterotomy knife. The present invention comprises an outer sleeve, an electric knife mechanism arranged on the outer sleeve, and a guide wire channel and a contrast medium channel arranged inside the outer sleeve. The front end of the outer sleeve is conical and has an opening. The main body of the guide wire channel and the contrast medium channel is a cavity parallel to each other. A connecting rod is arranged between the two metal wires of the incision knife. The metal wire length adjustment mechanism is connected to the tail end of the root metal wire, and the metal wire angle adjustment mechanism is connected to one of the electric knife metal wires. The two incision knife metal wires at the front end of the present invention can realize the rotation of the incision knife metal wires by moving the sliding handle, and then control the distance between the two guide wires, so that the two incision knife guide wires are close to the incision of the papillary sphincter at the 9 o'clock and 0 o'clock directions respectively, thereby reducing the incidence of postoperative pancreatitis. By rotating the duodenoscope to the left, a squeezing effect can be produced on the duodenal annular folds, which can increase the field of view while avoiding electrocautery damage to the duodenal folds.