33 results about "Mr cholangiopancreatography" patented technology

Disclosed is an expandable transluminal sheath, for introduction into the body while in a first, low cross-sectional area configuration, and subsequent expansion of at least a part of the distal end of the sheath to a second, enlarged cross-sectional configuration. The sheath is configured for use in the gastrointestinal system and has utility in the performance of endoscopic retrograde cholangiopancreatography (ERCP). The distal end of the sheath is maintained in the first, low cross-sectional configuration and expanded using a radial dilatation device. In an exemplary application, the sheath is utilized to provide access for a diagnostic or therapeutic procedure such as gallstone or pancreatic stone removal.

An article is provided for retaining components of an endoscopic retrograde cholangio-pancreatography delivery system. The article includes a body-encircling belt and an ERCP component retainer. The ERCP component retainer is affixed to the belt. The retainer has a pair of material strips connected together at one end with opposed inner surfaces. An inner surface on one strip is covered with hook fasteners and an inner surface on another strip is covered with loop fasteners that releasably attach to the hook fasteners to retain a coiled ERCP component.

A catheter for inserting into a bodily structure. The catheter includes a primary lumen for passing a device. One or more flaps or circumferential anchors protrude from a front tip of the catheter. The flaps or circumferential anchors engage with an inter-mural mucosa of the bodily structure.

The invention discloses an auxiliary diagnosis and measurement method in endoscopic retrograde cholangiopancreatography. The method comprises the following steps: S1, obtaining a perspective image inendoscopic retrograde cholangiopancreatography; s2, inputting the perspective image into a trained joint segmentation model, and carrying out segmenting to obtain a bile duct and a calculus; s3, measuring the width of the lower section of the bile duct and the width of the calculus by adopting a transverse diameter measurement method based on geometric modeling; s4, inputting the perspective imageinto a pre-trained bile duct narrow segment segmentation model, and segmenting a narrow segment of the common bile duct; and S5, measuring the length of the narrow section and the length from the narrow section to the tail end of the common bile duct. According to the invention, the joint segmentation model is established through a neural network to identify bile ducts and calculi; the narrow section of the common bile duct is segmented through the bile duct narrow section segmentation model, then the size of bile duct calculi, the width of the lower section of the bile duct, the length of the bile duct narrow section and the length from the bile duct narrow section to the bile duct tail end are measured, and a doctor can be assisted in diagnosing the bile duct calculi and bile duct narrowness through the measurement result.

A catheter system is provided that permits easy cannulation and radiological examination of the biliary and pancreatic ducts during an Endoscopic Retrograde Cholangiopancreatograhy (ERCP) procedure. The system of biliary catheters provides for a method of gaining access to the biliary tree, particularly when the contralateral wall or septum of the biliary tree interferes with access to the biliary tree. This anatomical interference is remedied using a pulling biliary catheter that withdraws the papilla of Vater away from the contralateral wall or septum by pulling proximally upon a chute expanded within the papilla of Vater. The enlarged opening then permits additional medical devices to be advanced through the pulling biliary catheter into the desired duct requiring the ERCP procedure.

The invention relates to an augmented reality navigation method and system for transendoscopic retrograde cholangiopancreatography. The method comprises the following steps: S1, carrying out three-dimensional scanning on the trunk of a patient through a medical scanning device before an operation, segmenting a preoperative surface geometric model of the duodenum from an obtained three-dimensional image, and constructing a preoperative biomechanical model of the duodenum based on the preoperative surface geometric model; S2, in an initial stage of an operation, allowing an endoscope to move back and forth in a duodenum area at a proper speed for one time, and constructing an intraoperative three-dimensional contour of the duodenum; S3, performing non-rigid registration on the intraoperative three-dimensional contour of the duodenum and the preoperative biomechanical model; and S4, realizing augmented reality navigation based on the real-time projection of the pose of the endoscope provided by the NDI electromagnetic positioning equipment. According to the navigation method provided by the invention, a clear pancreaticobiliary duct trend can be provided for a scalpel holding physician in an operation, and harmful effects of auxiliary X-rays and contrast agents on a human body are reduced.

The invention relates generally to methods for preventing post endoscopic retrograde cholangiopancreatography pancreatitis (ERCP). The method comprises administering a therapeutically effective amount of a pharmaceutical composition comprising secretin and a pharmaceutically acceptable carrier.

A method is disclosed for distending a body lumen in the performance of endoscopic retrograde cholangiopancreatography (ERCP). The method comprises insufflating the body lumen with contrast agent to distend the body lumen. The contrast agent includes gas.

The invention relates to the technical field of medical apparatus and instruments, in particular to a cyathiform stone removing mesh basket with a ball bag for an endoscopic retrograde cholangiopancreatography. The cyathiform stone removing mesh basket comprises a cyathiform mesh basket body, a snare, the ball bag, an outer cannula and an inner cannula. The inner cannula is a double-cavity pipe and comprises a pipe cavity I and a pipe cavity II. A metal connecting rod of the cyathiform mesh basket body is wrapped with the inner cannula. A connecting rod of the snare passes through the interiorof the pipe cavity I of the inner cannula, and the head end of the connecting rod is in an inverted-L shape. A ball bag catheter passes through the pipe cavity II of the inner cannula, is a double-cavity catheter and comprises a pipe cavity III and a pipe cavity IV. The pipe cavity III communicates with the ball bag at the head end of the ball bag catheter. A zebra guide wire passes through the pipe cavity IV. The snare is in an 8 shape and divided into two rings, wherein the larger ring is connected with an opening of the cyathiform mesh basket body, and the smaller ring penetrates through the ball bag catheter. The cyathiform stone removing mesh basket can be widely popularized in the fields such as therapeutic endoscopy of extrahepatic bile duct stone.

The invention discloses an integrated multifunctional double-balloon catheter, and relates to the technical field of medical instruments. The integrated multifunctional double-balloon catheter comprises a catheter body, a guide wire cavity is formed in the catheter body, a contrast agent outlet is formed in the end, close to the guide wire cavity, of the catheter body, the outer side of the catheter body is sleeved with a first radiopaque ring, a calculus removing balloon is installed on the catheter body, an air bag air outlet is formed in the calculus removing balloon and connected with the catheter body, and a dilation balloon is installed on the catheter body. According to the integrated multifunctional double-balloon catheter, the length of a narrow section of the digestive tract can be accurately measured during digestive tract dilation, the dilation effect can be evaluated through the calculus removing balloon at the front end, the calculus removing balloon and the dilation balloon are arranged on the catheter body, so that the catheter can be used for realizing conventional dilation and calculus removal operations in endoscopic retrograde cholangiopancreatography (ERCP), the manufacturing cost is lower than that of two instruments, and the cost performance is high.

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 discloses an embodiment of a guide wire length measuring device for ERCP, and the device comprises a fixing device which is fixedly disposed at the top end of a connecting short tube in a sleeving manner, and is provided with a central hole for a guide wire to pass through; the marking piece marks the guide wire; the measuring assembly comprises a fixing rod, a mounting box, a coil spring and a measuring line with scale marks; one end of the fixing rod is detachably inserted into the fixing device; the mounting box is of a hollow shell structure and is fixed to the other end of the fixing rod. The coil spring is arranged in the center in the mounting box; and one end of the measuring wire is fixed on the coil spring, and the other end of the measuring wire penetrates through the mounting box, extends outwards and is connected with two fixing clamps for simultaneously clamping the measuring wire and the guide wire. According to the guide wire length measuring device and method, rapid measurement of the length of the narrow section is achieved, and the problem that the length of the narrow section of the bile duct or the pancreatic duct is difficult to accurately measure when a patient is examined through existing endoscope retrograde pancreaticobiliary duct radiography is solved.

The invention provides a multi-surface pillow specially used for endoscopic retrograde cholangiopancreatography. The pillow comprises a pillow interior (1), a waterproof layer (2), and a pillow cover (3). The pillow interior is formed by a medium density sponge upper layer (4) and a high density sponge lower layer (5). The shape of the pillow interior is rectangular. The bottom surface of the pillow interior is a plane. The surface of the pillow interior is formed by a rear plane (6) and a front inclined plane (7). The rear plane of the surface of the pillow interior is provided with an oval ear hole (8) which passes through the bottom surface of the pillow interior. The surface of the pillow interior, on the right side of the oval ear hole, is provided with a shallow arc groove (9). The size and shape of the waterproof layer are matched with the appearance of the pillow interior, and the waterproof layer is tightly abutted against the pillow interior. The size and the shape of the pillow cover are matched with the appearance of the pillow interior, and the pillow cover is sleeved out of the waterproof layer of the pillow interior. The special-purpose multi-surface pillow is simple in structure and proper in material hardness, and improves comfort of a patient, and prevents auricles, eye sockets, and cheeks of the patient from being pressed in an operation. The pillow provides convenience for doctors to operate, shortens operation time of an operation, and greatly reduces pain of the patient.

The invention relates to the technical field of cholangiopancreatography auxiliary instruments, and discloses a body position pad for retrograde cholangiopancreatography through an endoscope, the body position pad comprises a thoracico-abdominal pad assembly and a lower limb pad assembly, the thoracico-abdominal pad assembly is mainly composed of a thoracico-abdominal supporting block, a thoracico-abdominal silica gel pad, isolation cloth and arm bandages; the lower limb pad assembly is mainly composed of a lower limb supporting block, a lower limb buffering silica gel pad and two parallel leg lap joint grooves formed in the lower limb buffering silica gel pad. The silica gel thoracico-abdominal pad is placed on the bed board of the operation bed, the thoracico-abdominal part can be buffered and supported when the right side of a patient lies prostrate, an operation can be better carried out conveniently, the thoracico-abdominal bandage is arranged on the thoracico-abdominal pad assembly and can be matched with the thoracico-abdominal pad to bind the patient to the operation bed, and the operation is more convenient. Accidents such as falling from the bed are avoided; and the arm bandage is arranged on the thoracico-abdominal pad, so that the potential safety hazard problem that the endoscope is pulled due to various discomfort of the patient in the operation process is avoided.