78 results about "Sphincter" patented technology

An implantable system for compressing internal tissue within a host body includes a compressing member and a stricture member made up of several interactive components for compressing internal tissue that could include a body canal which is a conduit for the flow of internal or external materials including fluids or solids or just a targeted tissue mass within the host body. The compressing aspect, including the stricture member, can also act to alternatively release said compression on the targeted tissue. In creating compression, the compressing aspect moves against the stricture member while reversing the compression is accomplished by reversing the process. An actuator, controlled by internal or remote electronic signals acts to move the compressing member.

The application relates to the technical field of cell in-vitro culture, and discloses a sphincter in-vitro culture environment construction device which comprises a culture device and a control host computer, the culture device is internally provided with a contraction member, the control host computer is connected with the culture device in a matched mode, and is used for regulating and controlling the action of the contraction member, so as to construct a physiological contraction environment. The application can simulate the annular contraction and the physiological contraction characteristics of the high and low pressure of the human sphincter, restore the dynamic contraction process, adopt a detachable structure, adapt to different culture cavities, has strong experimental flexibility, combines a perfusion design with a three-dimensional culture layer, simulates in-vivo nutrition transportation and metabolism discharge, provides a bionic growth environment for cells, integrates strain force detection and temperature control closed-loop regulation, is accurate in parameters and reliable in data, makes up for the short board of traditional static culture and animal experiments, provides a stable and efficient experimental platform for sphincter disease mechanism, mechanical response research and drug screening.

The gastroesophageal collar being submitted for patent intends to primarily prevent the ascension of the fundus above the diaphragmatic plane and also secondarily to improve the function of the Lower esophageal sphincter, thirdly to reduce occurrences of esophageal reflux and thereby hopefully reducing instances of esophageal cancer. It is estimated as high as %20 of the general population has a hiatal hernia experiencing symptoms of acid reflux and making them at higher risk for esophageal cancer. Currently the standard surgical repair of hiatus is fundoplication. The limitations of fundoplication are its high recurrence rate. It often requires a later second procedure to repair / tighten the fundoplication. By using supple bio-inert materials we intend to create a collar that can be left in place, mechanically preventing the ascension of the fundus and improving LES function. We hope to be the first Collar to prevent hiatal hernia and also improve LES function.

An enema nozzle and an enema device comprising said enema nozzle The present invention relations to an enema nozzle (1; 31; 34; 35) arranged for delivering an enema to a user, said enema nozzle comprises a ball-shaped insertion tip (3) and an elongated insertion body (2) having the shape of a truncated cone, and wherein the cross-sectional diameter (A, B) of the insertion body (2) is smaller than the cross-sectional diameter (C) of the ball-shaped insertion tip (3). When the enema nozzle (1; 31; 34; 35) is inserted into a user's rectum, the user's anal sphincter will hold itself in the substantially contracted condition thereby X, Z both keeping the enema nozzle (1; 31; 34; 35) in place, and prevent any leakage of fluids.

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 apparatus further includes a decoupling element. The decoupling element is positioned along the loop and is configured to selectively release a first portion of the loop from a second portion of the loop in response to application of a threshold force to the at least one decoupling element in a circumferential direction relative to the loop.

The invention discloses a construction method, system, equipment, product and medium for an ablation protection area, and the method comprises the steps: obtaining a cross-sectional image set of a prostate target area, the cross-sectional image set comprising a first cross-sectional image comprising a bladder neck and at least one second cross-sectional image comprising verumontanum; according to the first cross section image, a first boundary contour corresponding to the bladder neck is determined, and the first boundary contour covers the sphincter in the urethra; according to the second cross section image, a second boundary contour corresponding to the verumontana is determined, and the second boundary contour covers the verumontana; according to the first boundary contour and the at least one second boundary contour, the ablation protection area in the prostate target area is determined, the problem that definition of a functional structure depends on subjective judgment of clinical experience is solved, the quantitative protection standard of the functional anatomical axis from the bladder neck to the prostatic urethra to the verumontana is achieved, and the protection effect is improved. The risk of urination function impairment and sexual function impairment induced by transurethral ablation operation is effectively controlled.

This invention provides a laparoscopic electrocoagulation hook that allows for rapid and accurate adjustment of the instrument's angle during surgery, particularly in confined surgical spaces such as sphincter-preserving surgery for very low-lying rectal cancer. [Solution] The device comprises a main rod 1, a sleeve 2, a knob 3, a link rod 4, an electrocoagulation head 5, and a connecting rod 9. The sleeve is fitted around the outer circumference of the main rod so as to be axially movable by a guide structure, and the knob is connected to the main rod by a screw connection and has an annular groove on its outer circumference. The link rod is connected by sliding contact between one end of the sleeve and the annular groove at the other end. The electrocoagulation head is hinged to one end of the main rod via a hinge shaft 8, and its tail end is hinged to the sleeve via the connecting rod. When the knob is rotated, its axial movement drives the sleeve via the link rod, and the linear motion of the sleeve is converted into oscillation of the electrocoagulation head by the connecting rod, allowing for angle adjustment. This enables rapid angle adjustment during surgery.

The invention provides a double-guide-wire sphincter incision knife, and relates to the field of medical instruments. The double-guide-wire sphincter incision knife comprises a catheter sheath, a shredding cavity and two guide wire cavities which are independent of each other are formed in the catheter sheath, and a rapid exchange opening is formed in the side wall of at least one guide wire cavity. The double-guide-wire sphincter incision knife solves the technical problem that in the prior art, a duodenal papilla sphincter incision knife is difficult in guide wire super-selection.

The invention relates to the technical field of medical instruments, and discloses an anal tube for rectum surgery, which is characterized in that the anal tube comprises a guide tube and an anal tube main body sleeved on the guide tube, the anal tube main body is hollow and open at two ends, the anal tube main body comprises an anal tube front section, an anal tube middle section and an anal tube rear section, the anal tube middle section is concave inwards to be matched with sphincter of a patient, and the anal tube rear section is provided with an opening. The anal tube rear section is provided with a drainage tube joint; an external fixing assembly is arranged on the anal tube rear section and comprises a fixing part used for being attached to the anal tube body, a hip fixing paste connected with the fixing part and an opening formed in the middle of the fixing part and allowing a drainage tube connector to penetrate through, and a plurality of pasting pieces are arranged on the fixing part. The external fixing assembly further comprises a plurality of winding strips, and the winding strips are wound on the outer wall of the anal tube rear section. The anal tube has the advantage that the stability of the anal tube is improved.

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.

The invention relates to the technical field of medical instruments, in particular to a multifunctional urinary surgery cystoscope which comprises a cystoscope sheath and a mounting seat arranged at the tail of the cystoscope sheath, and further comprises a pressure monitoring module arranged at the tail of the mounting seat and connected with a pressure monitoring part located at the head of the cystoscope sheath, and a visual operation needle withdrawing module. The head of the cystoscope sheath is connected with an image transmission tube and a dosing channel which extend towards the head of the cystoscope sheath, so that the problems that in the prior art, the urinary surgery cystoscope is only provided with a single and linear operation channel, the urethra of a patient cannot be fully expanded, the patient feels uncomfortable or painful, the inner wall of the urethra is easily damaged, and the urethra cannot be fully expanded are solved. When medicine injection is carried out in precise target areas such as external urethral sphincter, a cystoscope body is high in rigidity, the direction of a needle head cannot be adjusted, an effective positioning means is lacked, accurate, safe and single-person operation is difficult to achieve, injection errors are large, and targeting is unknown.

The invention relates to the field of artificial urethral sphincter, in particular to a self-adaptive artificial urethral sphincter based on bladder capacity monitoring, comprising: a urethral closure unit for applying dynamically adjustable closure pressure on the urethra of a patient; the bladder monitoring unit is used for dynamically monitoring parameters related to the bladder filling state of the patient and generating a signal indicating the bladder filling state; and the implantable control unit is connected with the urethra closing unit and the bladder monitoring unit and is configured to receive the signal from the bladder monitoring unit and dynamically adjust the closing pressure applied to the urethra by the urethra closing unit according to the bladder filling state indicated by the signal. According to the embodiment of the invention, through intelligent adjustment of pressure application according to needs, the urethral tissue can bear high pressure only when the bladder is full or other necessary conditions are needed, and is in a low-pressure state for a long time, so that the total pressure load is reduced, and tissue atrophy and erosion caused by long-term ischemia are prevented.

The invention relates to the technical field of operation channels, and discloses an air inflation type channel device for taking out tumor specimens through the anus after colorectal operation, the air inflation type channel device comprises a main body, the right side of the main body is fixedly connected with a disc, the right side of the disc is fixedly connected with a top column, the side, close to the top column, of the disc is fixedly connected with a plurality of L-shaped plates, and the L-shaped plates are circumferentially arrayed with the top column as the center. Expansion of the outer air bag can pull the arc-shaped plate to rise along with the expansion speed of the outer air bag, when the arc-shaped plate rises, the arc-shaped plate pulls the rotating plate to synchronously rise, at the moment, when the rotating plate rises, the rotating plate can pull the hollow block to relatively move in the sliding groove plate along the sliding groove, and when inflation of the outer air bag is stopped, the hollow block can move in the sliding groove plate along the sliding groove. At the moment, the movable plate is clamped at the right-angle position of the oblique teeth through a third rear spring, so that the compression resisting mechanism cannot return backwards during supporting, the contractility of the sphincter is borne through the supported arc-shaped plate, and deformation caused by local pressure of the outer air bag is avoided.

Presently disclosed is an accommodative lens system which comprises an intraocular lens with fast and precise response to the near triad. The system, with the help of sensor(s) and a processor, bilaterally measures the activarion of medial rectus, ciliary and pupil sphincter muscles and thus identifies the near triad, generating data to control the lens. In at least an embodiment, different accommodative powers can be added to the different sides of the lens, maintaining the integrity of the capsular bag which is known to be harmed with the prevailing technique known in the art.

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.

A fecal incontinence treatment system comprises a first module, a second module, a first sensing module and a second sensing module, the first module electrically stimulates nerves and muscular tissues in a perineum area through multi-target cooperation, and the first module comprises a control unit and a rosette stimulation unit. The control unit cooperates with electrical stimulation of the rosette stimulation unit and the second module according to sensing signals acquired by the first sensing module and the second sensing module; four leaves of the rosette stimulation unit are respectively in contact with the Changqiang acupoint, the perineum acupoint and the anal sphincter body through electrodes on the leaves for electrical stimulation, and a columnar electrode of the rosette stimulation unit is in contact with a pudendum nerve projection area for electrical stimulation; the second module is used for stimulating a medial malleolus tibial nerve body surface projection area. Precise coverage and collaborative stimulation of the perineum area and the medial malleolus tibial nerves are achieved, the problems that a traditional device is limited in single target spot, poor in attachment and inaccurate in regulation and control are solved, and the effectiveness of fecal incontinence treatment and the compliance of a patient in home use are remarkably improved.

An apparatus includes at least one link and a plurality of beads. The plurality of beads is joined using the at least one link and is configured to be arranged in an annular arrangement. The annular arrangement is sized and configured to form a loop around an anatomical structure in a patient. Each bead includes a magnet configured to emit a magnetic field and a non-magnetic feature disposed between the adjacent magnets. The magnetic fields of adjacent magnets of adjacent beads of the plurality of beads are configured to proportionately change based on a distance between the adjacent beads. The magnet of each of the beads is configured to magnetically bias the loop toward the contracted configuration. The non-magnetic feature is configured to create a temporary magnetic braking force by temporarily altering the proportionate change of the magnetic fields once the adjacent beads are in a close proximity state.

The invention discloses an information processing method, device and equipment for RAIR interpretation and a medium, relates to the technical field of medical instruments, is applied to a computer device, and comprises the following steps: determining a resting pressure parameter and a pressure baseline value before gas injection based on a pressure cloud picture corresponding to an anorectum pressure measurement process; a target time interval is determined according to the actual gas injection starting moment corresponding to the pressure cloud picture, and the minimum pressure value of each channel in the pressure cloud picture is positioned in the target time interval; determining a pressure relaxation interval of each channel based on the baseline value and the minimum value, and quantifying the pressure response of the sphincter by using the resting pressure parameter and the pressure relaxation interval to obtain a target quantitative feature; the target quantitative features and the gas injection dosage corresponding to the anorectum pressure measuring process are input into the target classification model, the RAIR interpretation result of the anorectum pressure measuring process is output, and the interpretation result represents whether RAIR exists in the anorectum pressure measuring process or not. The reliability and efficiency of RAIR interpretation can be effectively improved.

A delivery device for image-assisted delivery of an implantable expander in a 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.

A surgical kit for performing a surgical procedure for treating reflux disease, the surgical kit comprising: an implantable movement limiting device (110, 111a, 111b) configured to prevent movement of a subesophageal sphincter relative to a diaphragm, at least partially interposed between the His angle and the diaphragm; a lubricant comprising at least one antibacterial substance for use with an implantable motion limiting device; and at least one absorbable suture (153).

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.

A medical device may include an implantable device for treating a body tissue structure. The implantable device may include a wire structure which may include a wave pattern. The wire structure may be elastic so as to provide a pressure around the body tissue structure such that the pressure may change with movement of the body tissue structure.

The present invention relates to an enema nozzle (1) arranged for delivering an enema to a user, said enema nozzle comprises a drop-shaped insertion tip (3) and an elongated insertion body (3), wherein the enema nozzle comprises at least one flow channel (7) in flow communication with at least one elongated delivery opening (5), said at least one elongated delivery opening (5) is arranged in an outer surface (6) of the drop-shaped insertion tip (3) and extends in the longitudinal direction (X) of the enema nozzle (1). When the enema nozzle (1) is inserted into a user's rectum, the user's anal sphincter will hold itself in the substantially contracted condition thereby both keeping the enema nozzle (1) in place, and prevent any leakage of fluids.

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.

Disclosed herein are internal anal sphincter constructs, and methods for generating and / or using such constructs. Also provided herein are methods for using internal anal sphincter construct(s) for treating fecal incontinence in a subject. The method of generating an innervated internal anal sphincter construct, provided herein, comprises using smooth muscle cells (SMCs) from an anorectum tissue cell biopsy and neural progenitor cells (NPCs) from an intestinal tissue cell biopsy from the subject.

The invention provides an acellular matrix for treating stress urinary incontinence as well as a preparation method and application of the acellular matrix. Splitting the soft tissue by using a cell lysis solution to remove cell debris; removing nucleic acid, degreasing and then micronizing; and adding the soft tissue particles and the soft tissue cross-linked particles into a phosphate buffer solution according to a ratio, mixing and emulsifying to obtain the acellular matrix for injection for treating stress urinary incontinence. The cell removal rate reaches 99%, the fat residue is less than 0.3%, and the injection is injected around the sphincter of the urethra (middle section or bladder neck) and / or in the urethra according to 0.5 ml / point and 3-4 points during clinical application to play roles in filling, connecting and repairing tissues, so that the damaged urethra supporting structure is repaired, the structural integrity and strength of connective tissues and the sphincter around the urethra are maintained, and the application prospect is wide. Therefore, the symptom of stress urinary incontinence is improved.

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 invention relates to the technical field of medical instruments, in particular to a portable biofeedback instrument for constipation patients, which comprises a catheter and a host, the left end of the catheter is communicated with a rectum simulation air bag, the surface of the catheter is provided with an anal sphincter induction air bag, the right side of the top of the surface of the catheter is provided with a piezoelectric micropump I, and the left end of the catheter is provided with an anal sphincter induction air bag; one end of the first piezoelectric micropump is communicated with the guide pipe, the other end of the first piezoelectric micropump is communicated with a water tank, an inner pipe is arranged in an inner cavity of the guide pipe, and one end of the inner pipe penetrates to the outer side of the guide pipe and is communicated with a second piezoelectric micropump. The system has the advantages of high portability, intelligent analysis, personalized training, data synchronization and remote support; the host of the biofeedback instrument is in the size of a palm, accords with ergonomic holding, is internally provided with a rechargeable lithium battery, can be carried and used by a patient anytime and anywhere, does not need to go to a hospital and other professional places, greatly improves the flexibility and convenience of treatment, and saves the time and economic cost of the patient.

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.

The invention discloses a nipple dilation system. The nipple dilation system comprises a conveying assembly and a dilator. The conveying assembly comprises a first pipe body and a second pipe body which are both of a hollow structure, and the first pipe body is arranged on the outer side of the second pipe body in a sleeving mode. The dilator is configured to be contracted between the first tube body and the second tube body when not in a working state and released by the relative movement of the first tube body and the second tube body when in a working state, and the released dilator expands in the radial direction so as to dilate a narrow duodenal papilla opening to a preset diameter. And a temporary calculus removing channel is established. The dilator only mechanically and temporarily dilates the duodenal sphincter without damaging the duodenal sphincter, and the duodenal sphincter recovers to the initial state after the dilator is taken out. Therefore, when the nipple dilatation system is used for assisting calculus removal operation, the sphincter is only subjected to temporary and recoverable dilatation and cannot be cut, it can be guaranteed that the function of the duodenal sphincter cannot be lost, and noninvasive dilatation is achieved.