12 results about "Sphincter" patented technology

This invention provides a single-operated duodenal sphincter cutter, comprising: an outer sheath, a guidewire, a metal wire, and a handle. The guidewire is inserted into the interior of the outer sheath through its wall and exits from its tip. The handle is connected to the tail of the outer sheath. One end of the metal wire is fixedly connected to the front of the outer sheath, and the other end is inserted into the interior of the outer sheath and connected to the handle. This invention features a dual-channel tube, with the guidewire entering the guidewire channel through the side wall. Its outer diameter is thinner than that of a conventional three-channel tube. The guidewire is led out through the side wall of the tube. With the outer sheath fixed in place, the operator can insert the guidewire into the common bile duct or pancreatic duct without the assistance of an assistant, increasing the success rate of cannulation.

This invention discloses an intelligent bionic artificial anus system, comprising: a sphincter module, a pressure sensor, and a controller. The pressure sensor and controller are disposed within the sphincter module. The sphincter module is located on the outer side of the human intestine and constricts the intestine. The pressure sensor detects a first pressure emanating from inside the intestine and sends the first pressure value to the controller. The controller issues an opening command when the first pressure value meets a first condition. The sphincter module reduces the external pressure applied to the intestine based on the opening command, causing the intestine to open. The controller issues a closing command when the first pressure value meets a second condition. The sphincter module closes the intestine based on the closing command. This allows patients who have had their anus removed to regain anal function, enabling them to defecate, work, live, and exercise normally without the need for a stoma, thus improving their quality of life.

The present disclosure relates to systems and methods for sphincterotome device with visualization capabilities. The distal tip section of the sphincterotome device has a diameter of about 5 fr and is controlled by a control wire to bend to a variety of degrees. The present disclosure further relates to systems and methods for artificial intelligence (AI) aided ERCP procedures and a combination of sphincterotome with visualization capabilities and AI aided ERCP procedures.

The application provides a double-guide-wire sphincterotome, and relates to the field of medical devices.The double-guide-wire sphincterotome comprises a catheter sheath, the inside of the catheter sheath is provided with a cutting-wire cavity and two guide-wire cavities which are independent of each other, at least one side wall of the guide-wire cavities is provided with a quick exchange port; the guide-wire cavity connected with the quick exchange port is at least partially unsealed, and the continuously unsealed part accounts for 50%-99% of the length of the catheter sheath.The double-guide-wire sphincterotome provided by the application solves the technical problem of difficult superselection of a duodenal papilla sphincterotome guide wire in the prior art.

The utility model provides a duodenum papilla dilatation balloon catheter with pressure measurement function, including outer sheath, combination and a plurality of branch pipes, the outer sheath includes drainage pipe section I, drainage pipe section II and drainage pipe section III connected in proper order from head to tail, the surface of drainage pipe section II is wrapped double -deck cylindrical dilatation film, double -deck cylindrical dilatation film includes inner layer film and outer layer film, and the outer layer film is equipped with opening, and the opening is equipped with pressure sensor, the combination is connected with the tail end of drainage pipe section III, and a plurality of branch pipes are connected with the combination, the utility model can be under the assistance of guide wire and carry out common bile duct or pancreatic duct intubation, can detect the pressure between balloon and duodenum papilla sphincter while dilating duodenum papilla sphincter, and the size of papilla dilatation is determined through pressure value, avoids the incidence of complications such as papilla sphincter laceration hemorrhage, bile leakage, intestinal bile reflux etc.

A catheter system comprising a catheter body having a stem portion and a coil having a halo portion, a swan neck element and a right-angle element. Said halo portion is along a plane perpendicular to the direction of the stem portion and connected to the stem portion via the swan neck element and the right-angle element. Said swan neck is configured to allow for dynamic movement and further configured to relax to allow for snap back in proximity with a sphincter.

A fecal incontinence treatment system comprises a first module, a second module, a first sensing module and a second sensing module, the first module stimulates the nerve and muscle tissue of the perineal area through multi-target point synergistic electrical stimulation, the first module comprises a control unit and a lotus root stimulation unit, the control unit cooperates with the electrical stimulation of the second module according to the sensing signals obtained by the first sensing module and the second sensing module; four blades of the lotus root stimulation unit respectively contact the Changqiang acupoint, the perineal acupoint and the anal sphincter through the electrodes on the blades to perform electrical stimulation, and the columnar electrode of the lotus root stimulation unit contacts the pudendal nerve projection area to perform electrical stimulation; the second module is used for stimulating the superficial projection area of the medial calcaneal tibial nerve. The present application realizes the precise coverage and synergistic stimulation of the perineal area and the medial calcaneal tibial nerve, solves the problems of single-target point limitation, poor adhesion and inaccurate regulation and control of the traditional device, and significantly improves the effectiveness of fecal incontinence treatment and the patient's home use compliance.

This invention relates to the field of medical device technology and proposes a disposable sphincter incision knife, including a cutting head with a guidewire connector inserted at the tail end. A fluid injection assembly is mounted on the guidewire connector, and a drive telescopic assembly is located at one end of the guidewire connector. The fluid injection assembly includes an injection tube connected to the guidewire connector. The injection tube is tilted and has a stepped groove at its end. A protective cap is fastened to the stepped groove, and the protective cap and stepped groove are sealed together. A conical cover is installed inside the injection tube, and the conical cover is sealed to the injection tube. This technical solution solves the problems of existing sphincter incision knives used in conjunction with high-frequency surgical equipment and flexible endoscopes for pancreaticobiliary cannulation and sphincter incision, where the knife is difficult to advance and retract, and the injection of medication easily leads to spillage.

This invention discloses a high-frequency sphincterotomy knife with expansion function. By incorporating a deployable expansion component at the front end of a traditional high-frequency sphincterotomy knife, the device can appropriately expand narrow channels before tissue incision, effectively increasing the endoscopic field of view and providing a larger operating space. This allows doctors to more clearly observe diseased tissue and surrounding structures, thereby improving the accuracy of the incision operation. Simultaneously, the expansion claw, driven by a slider, can achieve controllable extension and retraction, allowing the expansion range to be adjusted according to actual surgical needs. The positioning guide post ensures the stability of the expansion claw during movement, preventing displacement or interference of the expansion structure. Furthermore, the ball-head structure at the front end of the expansion claw reduces the risk of damage to the inner wall of the channel during expansion, thus improving the safety and reliability of the surgical operation and demonstrating good clinical application value.

A delivery tube for image-assisted positioning an implantable expander in a prostatic urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

An apparatus includes a plurality of beads. Each bead includes a housing and a magnet positioned within the housing. The apparatus also includes a plurality of interconnection elements. Each interconnection element movably joins together a corresponding pair of beads. The plurality of beads and the plurality of interconnection elements are sized and configured to form an expandable loop around an anatomical structure in a patient. The expandable loop is configured to apply a constrictive force to the anatomical structure. The constrictive force has a first rate of change when a dilation ratio of the expandable loop is within a first range, a second rate of change when the dilation ratio of the expandable loop is within a second range, and a third rate of change when the dilation ratio of the expandable loop is within a third range.

A nursing method and system for assisting defecation includes: a multimodal data acquisition unit for acquiring multimodal data of the anal sphincter region, including image data and biosignal data; a feature parameter extraction unit for segmenting the image data using a convolutional neural network segmentation model to generate a binary mask of the anal sphincter region and extracting feature parameters of the sphincter core region, including sphincter thickness and sphincter continuity; a stimulation strategy control unit for registering the sphincter core region after binary masking with a temperature matrix image using anatomical markers on the sphincter surface to obtain a temperature matrix of the sphincter core region, calculating gradient values ​​on the temperature matrix to obtain the temperature gradient of the temperature data damage area; calculating the anal resting pressure morphological coupling coefficient based on sphincter thickness, sphincter continuity, and anal resting pressure in the biosignal data; and a stimulation unit for adjusting the electroacupuncture stimulation parameters of the electrical stimulation terminal according to the coupling coefficient.