106 results about "Sphincter" patented technology

The invention relates to an electrical stimulation detection system and method for evaluating rectum sensation and anal sphincter reflex functions. The system comprises a stimulation unit which comprises a program-controlled electrical stimulator and an intra-rectum stimulation electrode used for applying monopulse electrical stimulation to the rectum wall; a recording unit including an anal sphincter response recording device for capturing anal sphincter reflex activity; and the central control and data processing unit is used for coordinating electrical stimulation, reaction recording and data analysis. The method comprises the following steps: arranging a stimulating electrode and recording equipment; applying monopulse electrical stimulation to the rectum wall; synchronously recording the reflective reaction of the anal sphincter; and performing quantitative analysis on the stimulation parameters and the reaction signals to determine a reflection threshold value, an incubation period, an amplitude and duration time. According to the system and the method, objective evaluation on the integrity of the reflex arc of the anorectum and the afferent sensitivity of the rectum feeling is realized through accurately controlled electrical stimulation and objective reaction quantification, and a reference basis is provided for diagnosis and rehabilitation evaluation of related dysfunctions.

A sphincterotome includes a variable thickness cover that covers an insulated portion of a cutting edge. The variable thickness cover includes a distal taper distally extending from a first outer diameter to a second outer diameter, where the first outer diameter is larger than the second outer diameter.

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.

Sphincterotomes and methods for making and using sphincterotomes are disclosed. An example sphincterotome may include an elongate shaft having an outer surface and a distal end region. The sphincterotome may also include a sphincterotome wire assembly having a distal end coupled to the distal end region of the elongate shaft and a body portion extending along the outer surface of the elongate shaft. The sphincterotome wire assembly may be designed to shift the distal end region of the elongate shaft between a first configuration and a curved configuration. The body portion of the sphincterotome wire assembly may include a cutting region and a non-conductive region.

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.

The duodenal papilla sphincter incision knife with the pressure measuring function comprises an outer sheath tube, a guide wire, a metal wire and a handle, the outer sheath tube comprises a drainage tube section I, a drainage tube section II, a drainage tube section III and a drainage tube section IV which are sequentially connected from head to tail, and the handle is connected with the tail end of the drainage tube section IV. A mounting groove is formed in the tube wall of the drainage tube section II, a pressure sensor is arranged in the mounting groove, one end of a metal wire is connected with the tube wall of the outer sheath tube, and the other end of the metal wire is inserted into the outer sheath tube and the handle; the guide wire is inserted through the handle, sequentially penetrates through the drainage tube section IV, the drainage tube section III, the drainage tube section II and the drainage tube section I and penetrates out. According to the invention, common bile duct or pancreatic duct intubation can be carried out under the assistance of the guide wire, the pressure of common bile duct, pancreatic duct and duodenal papilla sphincter is detected while papilla sphincter is incised under an endoscope, and the incised size of the papilla sphincter is determined according to the pressure value, so that the papilla sphincter is prevented from being incised too small or too large.

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 endoscopic stapler of the present invention allows for endoscopic approximation of tissue via stapling, avoiding invasive surgical procedures. The endoscopic stapler provides (1) flexibility compared to a traditional surgical stapler; (2) a long instrument (at least 135 cm) enabling the stapling to occur from a long distance as opposed to the short mechanism with today's surgical staplers; (3) a "bending section" allowing the device to reach to its target (often located at an angulation / corner / behind folds / or needing a retroflexed position); (4) small size to allow insertion through the upper esophageal sphincter (the size-limiting point in our field); and, (5) additional channels to facilitate endoscopic procedures including: one or more cameras, one or more accessory channels, suction port, and irrigation port. These features allow for easier and faster approximation of tissue, improve the efficacy of bariatric endoscopy procedures, increase the durability of tissue approximation, and reduce the costs of effective weight loss intervention.

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.

Provided is a sphincterotome with two guide wires and four cavities including a handle assembly, a sheath-tube assembly and a head assembly. The handle assembly includes an electrode electrically connected with a cutting wire. The sheath-tube assembly includes a four-cavity tube internally provided with an injection cavity, a cutting wire cavity and two guide wire cavities which axially run through the four-cavity tube, and an injection inlet communicating with the injection cavity and two guide wire inlets are formed in the four-cavity tube. The head assembly includes a head tube, and an injection outlet communicating with the injection cavity and two guide wire outlets are formed in the head tube. One end, away from the electrode, of the cutting wire passes through the cutting wire cavity to protrude from the head tube, and is fixedly connected to the head tube.

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 discloses a low rectal cancer postoperative sphincter training and recovery monitoring device. The device comprises a rod body, the front end of the rod body is a reducing part with a concave cambered surface; a generator is arranged at the rear part of the rod body; the light-emitting ring and the built-in generator can emit light and prompt tones with different colors according to the sphincter training pressure of the patient so as to indicate the sphincter training condition of the patient; an elastic hollow central liquid ring is fixed at the front end of the reducing part; first pressure-bearing sheets and second pressure-bearing sheets are alternately arranged on the central liquid ring in the circumferential direction of the central liquid ring; the first pressure-bearing sheet and the second pressure-bearing sheet are arranged on the two sides of the central liquid ring respectively and incline outwards, so that included angles are formed between the first pressure-bearing sheet and the central liquid ring and between the second pressure-bearing sheet and the central liquid ring; the device not only improves the training effect and efficiency, but also reduces the measurement error, enhances the comfort and treatment compliance of a patient, and realizes more comprehensive functional recovery.

The invention discloses a non-destructive diagnosis and treatment system which comprises an energy platform, a display platform, a visual tube mirror, a camera shooting assembly, a mesh basket assembly, an umbrella-shaped assembly, a direction adjusting assembly and the like, the umbrella-shaped assembly is passively opened when the mesh basket assembly passes through the umbrella-shaped assembly, and the umbrella-shaped assembly is automatically closed when the mesh basket assembly retracts into the visual tube mirror. According to the non-destructive diagnosis and treatment system, through the arrangement of the energy platform (host), the visual tube lens, the mesh basket, the matched tools and the like, non-destructive human body natural cavity operation can be achieved, and the situation that organs or tissues in a human body cavity are damaged by instruments in the visual diagnosis, stone breaking and stone removing processes is avoided; the injury to human tissues caused by instant high heat in the lithotripsy process is avoided, and the safety of lithotripsy operation is favorably improved. The non-injury diagnosis and treatment system can be applied to the non-injury urinary lithotripsy direction and the non-injury ERCP direction, and damage and function loss caused by cutting open sphincter to organs are avoided.

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.

The invention relates to the technical field of medical auxiliary equipment, in particular to a multi-mode anorectal detection probe which comprises a shell, a temperature control sensor, an electrode and an air bag, the temperature control sensor is arranged at the end of the shell, the electrode is arranged on the outer surface of the shell, and the air bag is arranged in the shell. The air bag is arranged at the other end, away from the temperature control sensor, of the shell, the end where the air bag is arranged is the end making contact with the human body, the electrode comprises three electrode bands spirally extending along the longitudinal axis of the outer surface of the shell, and the three electrode bands are evenly distributed in the circumferential direction of the shell. The air bag is arranged in the shell and is axially divided into a far-end area used for identifying outer anal sphincter, a middle area used for identifying inner anal sphincter and a near-end area used for identifying puborectum muscle along the shell, and the air bag comprises an air bag front chamber, an air bag middle chamber and an air bag rear chamber which are mutually independent. Therefore, the scientificity, the accuracy and the clinical curative effect of BFES treatment are improved.

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.

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.

A device, system, and method for closing and reopening a sphincter in a body, such as for closing and opening an internal urinary sphincter of a bladder, thereby blocking retrograde ejaculation, by employing controllable electromagnets. Using the present device, system, and method, the patients can selectively close their bladder's sphincter as desired, for example, to selectively block retrograde ejaculation, preventing semen from entering the bladder of the patient and thereby preventing infertility of the patient. The solution helps regain the elasticity function of the sphincter to allow it to close as per normal to prevent retrograde ejaculation. A series of magnetizable metal objects are positioned in or surrounding the bladder wall at the junction with the urethra, with each of the magnetizable metal objects being electromagnetically controlled to have a controllable closing / reopening of the bladder's sphincter, thereby preventing retrograde ejaculation while also allowing the passage of urine as per normal.

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.