32 results about "Duodenoscopes" patented technology

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 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.

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.

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 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 present invention provides a duodenal papilla traction clip, comprising: a clip body, a connecting rod, a traction wire, an outer sheath tube and a handle. The clip body is connected to the head of the connecting rod and is located outside the head end of the outer sheath tube. The traction wire is placed inside the connecting rod, the head of the traction wire is connected to the clip body, the body of the connecting rod is located inside the outer sheath tube, the tail end of the connecting rod is connected to the handle, and the handle is connected to the tail of the outer sheath tube. The clip body is provided with a first limiting device and a second limiting device, the connecting rod is provided with a third limiting device, and the head of the outer sheath tube is provided with a fourth limiting device. The first limiting device, the second limiting device, the third limiting device and the fourth limiting device cooperate to limit the movement of the clip body. The present invention can be inserted through the biopsy channel of a duodenoscope, clamp the oral side tissue of the duodenal papilla, close the traction clip, and pull the duodenal papilla through the traction wire to straighten duodenal papillae of various shapes and courses, thereby increasing the success rate of intubation.

An elevator for an endoscope, the elevator comprising: a first end portion secured to the endoscope; a second end portion movable by an actuator; a flexible portion positioned between the first end portion and the second end portion, the flexible portion rotatable when the second end portion is moved by the actuator; and a guide portion extending between the flexible portion and the second end portion to receive an endotherapy instrument extending from the endoscope, the guide portion comprising a chute to guide the endotherapy instrument away from the endoscope. A method of forming an elevator, the method comprising: forming an elongate body from a planar sheet material, the elongate body comprising a length between a first end portion and a second end portion, a width, and a thickness; forming a guide body in the elongate body; bending the elongate body such that the first length and the second length of the elongate body oppose one another to form an interior space; and bending the guide body to extend into the interior space.

Endoscopes (e.g., duodenoscopes) include dual-fluid valves for controlling the flow of water and air through a flexible tubular probe to flush or inflate the patient's lumen, respectively. Some examples of these dual-fluid valves include flexible valve seals that allow air to flow in one direction but not in the opposite direction. Different examples of these valve seals include features such as: a set of overlapping flexible flaps arranged in a spiral; a rubber disc with a cross-shaped array of perforations that opens in response to a positive pressure differential across the disc; an elastically expandable cone with multiple concentric ridges; a valve core surrounded by an elastic tubular member capable of radial expansion to open an air passage within the valve core; and an elastic tube that bulges radially outward when compressed or otherwise shortened to block the annular air passage.

A suction valve for endoscopes (e.g., duodenoscopes) includes a valve housing with strategic relative port sizing to provide a vented configuration and a suction configuration. In the suction configuration, the endoscope conveys suction to a distal end of the endoscope's flexible tubular probe. In the vented configuration, the suction is mostly turned off at the distal end. The valve housing has a suction source opening leading to a vacuum pump, a vent opening that can be opened to atmosphere, and a probe opening leading to a suction tube in the flexible tubular probe. In some examples, the suction source opening is larger than the vent opening, which in turn is larger than the probe opening. With such port sizing, the suction valve can switch between the vented and suction configurations without relying on any moving parts. An operator can switch to the suction configuration by simply covering the vent opening.

The invention provides a novel biliary tract calculus removing device and a using method, and belongs to the technical field of medical instruments. A flexible, multi-lumen elongate catheter designed to be introduced into the bile duct through the working channel of the duodenoscope; an electrosurgical lead assembly consisting of a distal cutting portion and a non-conductive portion extending proximally through the first lumen for performing sphinctotomy; by integrating an electrosurgical wire assembly, balloons with different purposes, such as a high-pressure expansion balloon and a low-pressure calculus removal balloon, and an injection system for bile duct radiography, in a flexible and multi-cavity slender catheter, a doctor can complete a complex biliary tract calculus removal operation without frequently replacing instruments. The injury risk possibly caused by multiple times of instrument insertion is reduced, and the safety and the success rate of an operation are improved.

The invention provides an endoscope suture needle system, and relates to the technical field of medical instruments, the endoscope suture needle system comprises a suture needle, a needle holder and a needle returning device, the suture needle comprises a metal needle, a suture and a recovery ring, the metal needle comprises a needle tip, a needle body and a needle tail, the needle body is spiral, and the projection of the needle body is double-C-shaped; the needle tail is perpendicular to the projection of the needle body and located at the central point of the projection. Barbs and thread rings are arranged on the sewing threads; the needle holder comprises a mouthpiece, an outer sheath tube, a push-pull tube and a handle, and the push-pull tube is connected with the mouthpiece through a connecting rod mechanism; the mouthpieces comprise the first mouthpiece and the second mouthpiece, the needle returning device is a metal rod or a pair of foreign body forceps, the head of the metal rod is of an arc-shaped hook structure, and the arc-shaped hook structure comprises a side hole and a groove. The device can be placed into a digestive tract through a gastroscope, an enteroscope and a duodenoscope forceps channel and is used for suturing tissues such as esophagus, stomach, colon and duodenal papilla; needle feeding and needle discharging are easy to operate, the suture needle is easily contained in the needle holder, the needle holder holds the needle firmly, suture suturing is firm, and a thread end and a thread tail are easily connected.

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 present invention discloses an endoscope lifting device, an endoscope head end, and a duodenoscope system. The bottom of the endoscope lifting device is connected to an instrument channel and is provided with a hinged portion for hinged connection with the endoscope head end seat; the top of the endoscope lifting device is provided with a positioning groove adapted to the positioned part; the side of the endoscope lifting device is provided with a shearing edge and a guide surface, and the guide surface is located between the positioning groove and the shearing edge; during the lifting process of the endoscope lifting device, the shearing edge can move along the inner side surface of the head end seat to guide the positioned part in a first deflected extended state to the guide surface, the guide surface can guide the positioned part into the positioning groove, and the positioning groove can cooperate with the abutting fixing part to clamp and fix the positioned part, so as to prevent the positioned part from falling out of the nipple and moving into the nipple, thereby ensuring the smooth progress of the operation.

A suction valve for an endoscope (e.g., a duodenoscope) includes a valve housing, a valve spool, and a return mechanism for returning the valve spool from a manually depressed position to a home position. In the depressed position, the suction valve places the endoscope in a suction configuration for drawing fluids, tissue or other matter out from within a patient. The home position places the endoscope in a vented configuration to interrupt the suction. Various examples of the return mechanism include a resilient integral portion of the valve spool, a resilient integral portion of the valve housing, a resiliently flexible diaphragm extending radially across an annular gap between the valve spool and the valve housing, and a magnetic set affixed to the valve spool and the valve housing.

A suction valve for endoscopes (e.g., duodenoscopes) includes a valve housing with strategic relative port sizing to provide a vented configuration and a suction configuration. In the suction configuration, the endoscope conveys suction to a distal end of the endoscope's flexible tubular probe. In the vented configuration, the suction is mostly turned off at the distal end. The valve housing has a suction source opening leading to a vacuum pump, a vent opening that can be opened to atmosphere, and a probe opening leading to a suction tube in the flexible tubular probe. In some examples, the suction source opening is larger than the vent opening, which in turn is larger than the probe opening. With such port sizing, the suction valve can switch between the vented and suction configurations without relying on any moving parts. An operator can switch to the suction configuration by simply covering the vent opening.

A suction valve (15, 15a) for endoscopes (e.g., duodenoscopes) includes a valve element (58, 70) that rotates between open and closed positions in response to linear movement of a plunger (56, 72). In some examples, a meshing gear arrangement (62, 66, 100, 102) 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 (76) about which the valve element rotates is parallel to the plunger's linear travel path (78). In some examples, the axis about which the valve element rotates is perpendicular to the plunger's linear travel path.