166 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.

An apparatus includes a plurality of beads each defining a first opening and a second opening, a linking assembly, and a 3D printed magnetic element housed within a first bead of the plurality of beads. The linking assembly extends through the first opening and the second opening of each bead such that the beads and the linking assembly may be arranged in an annular arrangement to form a loop around an anatomical structure in a patient. The loop moves between a contracted configuration and an expanded configuration and is magnetically biased toward the contracted configuration. The 3D printed magnetic element is housed within a first bead of the plurality of beads. The 3D printed magnetic element include a composite of magnetic granules combined to generate a magnetic field. The magnetic field is generated by the 3D printed element and is configured to contribute toward the magnetic bias.

An apparatus includes a plurality of beads and a linking assembly joining the beads together. The beads include a housing defining a first opening, a second opening, and a chamber extending between the first opening and the second opening. A magnet is contained within the housing. The beads and the linking assembly are arranged in an annular arrangement and sized to form a loop around an anatomical structure in a patient. The loop may move between a contracted and expanded configuration. The loop is magnetically biased toward the contracted configuration by a magnetic bias of the beads. The linking assembly includes a first link element having an elongate body extending in the chamber of the first bead and a sealing element attached to the elongate body housed within the first opening of the first bead to thereby form a hermetic seal.

Medical devices and methods are disclosed. An example medical device for accessing a body cavity along a biliary and / or pancreatic tract may include an elongate member having a distal end and a proximal end. The medical device may have a flexible distal tip. The flexible tip may be steered by applying tension to one or more steering wires extending between the distal tip and a handle located at a proximal end of the medical device. The medical device may be a sphincter.

The invention discloses a rectal cancer postoperative anus function training rehabilitation device, and relates to the technical field of medical treatment, and the rectal cancer postoperative anus function training rehabilitation device is characterized in that an anorectum manometer detects the anorectum internal pressure of a rectal cancer patient to obtain a first detection result; the rectal ultrasonic probe monitors the surface myoelectricity or systolic pressure change of the sphincter ani to obtain a second detection result; the medical care terminal comprehensively evaluates the anus function based on the first detection result, the second detection result and a subjective scale, formulates a pelvic floor biofeedback combined acupuncture treatment scheme, and generates a corresponding acupuncture instrument control instruction and a biofeedback instrument control instruction; the acupuncture instrument stimulates a physiological regulation mechanism in a body by stimulating acupuncture points, and benign regulation is carried out on recovery of pelvic autonomic nerve functions; the biofeedback instrument feeds back the pelvic floor muscle signal to the rectal cancer patient so as to guide the rectal cancer patient to consciously control pelvic floor muscle movement. The anus function of the patient can be evaluated, protected and assisted in rehabilitation, and the postoperative life quality of the patient is improved.

The invention relates to an intelligent defecation system and a using method thereof, and the intelligent defecation system comprises an implantable anus valve which is used for controlling defecation; the pressure sensor is used for monitoring the pressure generated in the anus area during defecation or fart in real time; the implantable power supply is used for supplying power to the implantable anus valve and the pressure sensor; the wireless charging inner module is used for charging the implantable power supply; the control chip is used for receiving the pressure data of the pressure sensor and the electric quantity data of the implantable power supply and controlling the opening and closing of the implantable anus valve by controlling the on-off of the implantable power supply; and the control system is used for receiving the signal from the control chip and sending an instruction to the control chip. According to the intelligent defecation system and the using method thereof, intelligent defecation control is achieved, operation is easy, defecation of disabled old people defecating anywhere due to dementia and patients with anal sphincter dysfunction or anus resection caused by specific diseases are controlled, fecal incontinence is avoided, and life quality is improved.

Systems and methods for treating bladder and / or bowel dysfunction of a patient includes implanting a lead carrying one or more stimulation elements to apply stimulation energy to one or more target sites in the periurethral space. In some examples, the target site(s) can be one or more of the deep perineal nerve and the external urethral sphincter.

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 apparatus includes a plurality of beads and a linking assembly joining the beads together. The beads include a first bead having a first external contact surface, and a second bead having a second external contact surface. A magnet is contained within the housing. The beads and the linking assembly are arranged in an annular arrangement and sized to form a loop around an anatomical structure in a patient. The loop may move between a contracted and expanded configuration. The loop is magnetically biased toward the contracted configuration by a magnetic bias of the beads. The first external contact surface and the second external contact surface engage each other as the loop transitions into the contracted configuration to drive the first bead and the second bead into a predetermined orientation relative to each other about the linking assembly in the contracted configuration.

The invention relates to a magnetically-driven artificial anal sphincter device based on magnetic conductance modulation. The magnetically-driven artificial anal sphincter device comprises a shell, an external magnetic driving assembly, a transmission assembly and a constant force assembly, the transmission assembly and the constant force assembly are arranged in the shell; the external magnetic driving assembly comprises a high-speed turntable, a first permanent magnet and a motor; the transmission assembly comprises a low-speed turntable, a second permanent magnet and a connecting rod; the constant force assembly comprises an upper sliding block, a constant force spring and a lower sliding block. Human body rectum tissues are placed below the main shell and the cover plate; when the low-speed rotating disc rotates, the connecting rod is driven to push the upper sliding block to move downwards, the upper sliding block pushes the constant-force spring and the lower sliding block to move downwards, and then the rectum tissue between the lower sliding block and the bottom plate is clamped. Compared with the prior art, non-contact energy transmission of the artificial anal sphincter can be achieved, the rectal tissue is clamped in a constant-force mode, and the problem that intestinal canal tissue is damaged due to the fact that clamping contact stress is too large is solved.

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.

An implantable biocompatible dilator (1) suitable for implantation in a urinary tract includes: an elongated sinusoidal ring having at least two proximal forks (7) and at least two distal forks (5), wherein the dilator can elastically deform from a relaxed radial expansion orientation to a radial contraction orientation, the radial contraction orientation being suitable for transluminal delivery through the urinary tract. The dilator is configured to apply radially outward forces to the urinary tract wall when in situ within the urinary tract. In particular, the dilator is suitable for treating benign prostatic hyperplasia and can be configured to be implanted and substantially cross the prostatic urethra between the bladder neck and the external sphincter.

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 utility model relates to the technical field of medical instruments, in particular to a pair of special curved forceps for a haemorrhoids operation. The forceps comprise a first forceps body and a second forceps body, each of the first forceps body and the second forceps body comprises a first bent part, a second bent part, a forceps body and a forceps handle, the first bent parts, the second bent parts, the forceps bodies and the forceps handles are sequentially connected from front to back, the forceps bodies are straight, the first bent parts are bent upwards from back to front relative to the forceps bodies, and the second bent parts are bent upwards from back to front relative to the forceps bodies. The two ends of the second bending part are connected with the first bending part and the forceps body respectively, the second bending part is of an arch structure with the middle protruding upwards, and a receding part which is located between the first bending part and the forceps body and is opened downwards is formed on the lower side of the second bending part; and the plier body of the first plier body is hinged with the plier body of the second plier body through a pin shaft. The bent forceps special for the hemorrhoid operation solve the problem that the anal internal sphincter is prone to being clamped when the forceps clamp internal hemorrhoids in the operation, a doctor can conduct ligation and observation conveniently, and the operation time of the doctor is saved.

The present application provides a urinary catheter structure, including an outer sheath tube with a drainage port, an inner core inserted in the outer sheath tube, and a balloon arranged at the distal end of the inner core, the balloon being positioned in the patient's bladder, and the outer sheath tube being able to be axially moved relative to the inner core by an external force, wherein when the drainage port of the outer sheath tube is located between the patient's sphincter and the bladder, the urine in the patient's bladder directly flows into the drainage port and is discharged, so as to provide an involuntary urination function, and when the drainage port of the outer sheath tube is located between the patient's sphincter and the external urethral opening, the urine in the bladder flows through the sphincter and enters the urethra, and then flows into the drainage port to be discharged through the urinary catheter passage, so as to provide an autonomous urination function. Thus, the present application can switch between providing autonomous urination and involuntary urination functions according to the actual use needs of the patient, and can effectively alleviate the patient's urinary tract irritation symptoms and reduce the risk of urinary tract infection.

An illustrative intraluminal implant having an elongated tubular member. The elongated tubular member has a proximal stent, a distal stent, and an interconnected sleeve. The proximal stent tapers from a first outer diameter adjacent a proximal region to a second, smaller outer diameter adjacent a distal region. The outer diameter of the distal stent is smaller than the first outer diameter of the proximal stent. The interconnected sleeves are collapsible under the action of an applied radial force so that the sleeves can be positioned through a native valve or sphincter.

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.

Embodiments of the invention provide apparatus, systems and methods for stimulating tissue in the urinary tract to initiate or facilitate urination. One embodiment provides an external urinary sphincter stimulation (EUSS) catheter for stimulating the external urinary sphincter (EUS), where the EUSS catheter includes nerve stimulation electrodes (NSES) for delivering current to nerves within or around the EUS in order to relax the EUS prior to urination. Other embodiments provide a system for stimulating the EUS including the EUSS catheter and a controller operatively coupled to the EUSS catheter, where the controller includes a pulse generator for delivering current to the NSES. Other embodiments provide methods for positioning the EUSS catheter in the patient's body including in the EUS using a urethral approach. Embodiments of the invention are particularly useful for initiating and / or controlling urination for patients who have lost the ability to voluntarily urinate due to neurogenic bladder dysfunction.

The utility model belongs to the technical field of medical supplies, and particularly relates to an electric anorectum training device which comprises a first mounting shell, a mounting inner bin is embedded in the first mounting shell, a heating pipe and a refrigerating pipe are fixedly mounted in the mounting inner bin through a connecting frame, and a heat conducting plate is fixedly connected to the inner wall of the first mounting shell. A second mounting shell is arranged at the bottom of the first mounting shell, connecting seats are mounted at the two ends of the second mounting shell, and the top of the second mounting shell is fixedly connected with the bottom of the first mounting shell through one of the connecting seats; on one hand, cold and hot stimulation can be performed on the anal sphincter of a patient to facilitate the recovery of the defecation function of the patient, and on the other hand, the muscle force and muscular tension of the anal sphincter of the patient can be monitored in real time to facilitate medical staff to more accurately master data of the affected part of the patient, so that the medical staff can accurately know the data of the affected part of the patient. And medical staff can be helped to make a relatively efficient treatment plan.

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.

The disposable high-frequency nipple sphincter incision knife comprises a connecting sleeve, a fixing sleeve is fixedly connected to the top of the connecting sleeve, two fixing side boxes are symmetrically and fixedly connected to the outer side of the fixing sleeve, limiting sliding plates are slidably connected to the interiors of the fixing side boxes, and ejector rods are fixedly connected to the tops of the limiting sliding plates; the cutting device has the beneficial effects that the metal elastic pieces and the bevel edge clamping blocks are additionally arranged, the bevel edge clamping blocks limit the positions of the limiting top plate and the extending-in pipe body, so that the extending-in pipe body is stretched, the knife wire body is exposed to the outside, cutting treatment is conducted through the knife wire body, and the cutting effect is good. And a limiting sliding plate and an ejector rod are additionally arranged, so that when the bevel edge clamping block leaves the position limitation of the limiting ejector plate, the limiting sliding plate and the ejector rod are jacked to move upwards through the reset of a first spring, the ejector rod jacks the limiting ejector plate and extends into a pipe body to move upwards, and the position of the cutter wire body is stored.

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.