35 results about "Anal sphincters" 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.

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.

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.

The invention discloses a sausage filling nozzle and sausage filling equipment comprising the sausage filling nozzle. The present invention relates to an enema nozzle (1, 31, 34, 35) arranged for delivering an enema agent to a user, the enema nozzle comprising a spherical insertion tip (3) and an elongated insertion body (2) having the shape of a frustoconical body, and wherein the cross-sectional diameter (A, B) of the insertion body (2) is smaller than the cross-sectional diameter (C) of the spherical insertion tip (3). When the enema nozzle (1, 31, 34, 35) is inserted into the user's rectum, the user's anal sphincter holds itself in a substantially contracted state, thereby both holding the enema nozzle (1, 31, 34, 35) in place and preventing any leakage of fluid.

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 invention provides a magnetic force driven alternate clamping type artificial anal sphincter prosthesis, which comprises an upper clamping device, a lower clamping device, an upper clamping device and a lower clamping device, wherein the upper clamping device is used for clamping a first part of an intestinal tract and can be opened or closed through magnetic force driving; the lower clamping device is used for clamping a second part of the intestinal tract and can be opened or closed through magnetic force driving, and the magnetic force threshold value of the lower clamping device is larger than that of the upper clamping device; the linkage part is connected with the upper clamping device and the lower clamping device and enables the upper clamping device and the lower clamping device to be in linkage. According to the artificial anal sphincter device, a magnetic force driving mode is adopted, the upper clamping device and the lower clamping device are used for alternately clamping an intestinal canal, clamping is carried out in a large-area plane, an excrement temporary storage stage is preset, an intestinal pressure monitor is matched for defecation early warning, and manual operation is not needed; the artificial anal sphincter prosthesis can effectively reduce the risk of injury and infection caused by the fact that the intestinal tract is in a clamping state for a long time, and is safe, stable, good in excrement control and convenient in energy supply.

The utility model discloses an anorectal dosing device for digestive system relates to medical instrument technical field, including barrel and needle tube fixedly connected to barrel one end, barrel side wall center is equipped with the channel no. 1 that runs through along its axial direction, needle tube side wall center is equipped with the channel no. 2 that runs through along its axial direction, and the channel no. The end, away from the needle tube, in the first channel is slidably connected with a piston push rod, and the end, away from the cylinder body, of the needle tube is provided with an inner supporting mechanism. According to the anal dilatation device, through the inner supporting mechanism, anal dilatation can be carried out on a patient properly, sphincter inside and outside an anal tube is relaxed, medicine can be conveniently conveyed to the rectum or a deeper position through the anus, a better treatment effect is achieved, meanwhile, blood circulation around the anus can be promoted through proper anal dilatation, absorption and metabolism of the medicine are accelerated, and the anal dilatation effect is improved. Meanwhile, the grooves formed in the edges of the side walls, close to each other, of the limiting blocks can ensure that secondary injury to the patient is avoided when the inner supporting mechanism retracts.

A treatment device is disclosed. The treatment device comprises a cover sized to be inserted into the anal sphincter region and connected to a handpiece, at least one optical fiber configured to partially emit a laser beam such that the laser beam is oriented perpendicular to at least one axis of the optical fiber, a laser light source coupled to the at least one optical fiber, a thermometer connected to the cover, and a controller configured to control the laser light source based on a temperature measurement value received from the thermometer.

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.

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 system and / or method to treat incontinence of a patient includes a stimulation element implanted to stimulate one or more target sites to activate an external sphincter or other mechanism of continence of the patient, such as the external urethral sphincter and / or the external anal sphincter.

The present invention relates to an artificial anal sphincter device with constant-force clamping by rope drive, which includes a drive motor, a non-coplanar wheel, a pair of constant-force elements, a co-planar and opposite-direction wheel and a clamping element. The pair of constant-force elements are respectively a constant-force element A and a constant-force element B. One ends of the constant-force element A and the constant-force element B are respectively connected to the drive motor. The other ends of the constant-force element A and the constant-force element B are respectively wound around the non-coplanar wheel and the co-planar and opposite-direction wheel and then connected to the clamping element. When the drive motor controls one of the constant-force element A and the constant-force element B to tighten, the other one is relaxed. Through the coordinated action of the pair of constant-force elements, the drive motor realizes the opening and closing of the clamping element. By embedding the designed constant-force element in the rope-wheel drive structure, the present invention can always maintain a constant clamping force during the long-term clamping of the intestinal tube, effectively avoiding intestinal tube damage or device failure caused by excessive or too small force on the intestinal tube, and effectively solving the biomechanical compatibility between the artificial anal sphincter and the intestinal tube.

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 treatment device is disclosed. The treatment device comprising: a cover dimensioned for insertion into the anal sphincter area, connected to a handpiece; at least one optical fiber partially, configured to emit a laser beam, wherein the laser beam is directed perpendicularly to axis of the at least one optical fiber's; a laser source coupled to the at least one optical fiber; a thermometer connected to the cover; and a controller configured to control the laser source based on temperature measurements received from the thermometer.

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 an enemator with a leakage-proof structure, which belongs to the field of medical instruments and comprises a medicine cylinder, an enema component and a fixing component. A piston in the medicine cylinder is connected with a medicine injection push rod; one end of the medicine cylinder is connected with a medicine outlet pipe; the leakage-proof tube is arranged at one end of the medicine outlet tube, the movable plug opening is rotatably installed at one end of the leakage-proof tube, after enema and medicine injection are conducted on a patient through the leakage-proof tube, the air bag is inflated through the inflation tube, the air bag is inflated and swelled to fix the leakage-proof tube in the body of the patient, and the air bag can play a role in blocking and preventing medicine from flowing out. For a patient whose anal sphincter relaxation enema medicine cannot be reserved in the intestinal tract, the medicine can be well reserved in the intestinal tract, the purpose of intestinal tract treatment is achieved, for a patient whose intestinal tract disease needs to be treated with enema liquid, the leakage-proof tube can be reserved in the anus through the air bag to inject the medicine for multiple times, the medicine can be prevented from flowing out, and the accuracy of the dosage can be guaranteed.

The invention relates to an artificial anal sphincter system based on defecation perception. The artificial anal sphincter system comprises a defecation perception module, a driving module, an execution module, a control circuit and a single-chip microcomputer control module. The defecation perception module comprises a sensor, an alarm module and a screen display module; the defecation perception module, the driving module and the execution module are all connected with the control circuit. When the patient needs to defecate, the execution module controls the clamping mechanism to release the rectum, and normal defecation is carried out; after defecation is finished, the execution module clamps the rectum again, and the sensor replaces normal rectal nerves. Compared with the prior art, the device simulates the contraction mechanism of the sphincter, the movement of the upper clamping plate and the lower clamping plate acts on the intestinal canal, the closed state of the intestinal canal tissue is simulated, a complex mechanical structure is avoided, the effectiveness of the artificial sphincter is improved, the defecation sense sensing function of the rectum and the sphincter group is remodeled, and the practicability is higher.

The invention relates to the technical field of biomedical engineering, in particular to an excrement hardness evaluation method and system for an auxiliary defecation system.The method comprises the steps that a mechanical arm is controlled to insert a probe integrated with a sensor into the rectum; after the probe penetrates through the anal sphincter, idle energy consumption is measured; advancing a unit distance, and measuring the friction energy consumption of the rectum wall; continuously propelling to contact excrement, and measuring the total energy consumption; a first excrement hardness index is calculated based on idling energy consumption, friction energy consumption and total energy consumption, then a second excrement hardness index is calculated by synchronously utilizing component data acquired by a bioelectrical impedance measuring electrode, a third excrement hardness index is calculated by utilizing pressure data acquired by a pressure sensor, and the three indexes are weighted and fused into an excrement comprehensive hardness index. Through multi-modal sensing and data fusion, real-time and accurate excrement hardness evaluation in the anorectum is realized, and a reliable basis is provided for parameter adjustment of a personalized adjustment auxiliary defecation system.

The present invention discloses an artificial anus device, which adopts a support frame with an annular through-hole structure and a conical cross-section. The inner ring of the support frame is made of a flexible material. An annular circuit groove is provided in the annular arm of the support frame, and an IPMC driving device is provided in the annular arm of the support frame. A driving circuit connected to the IPMC driving device is provided in the annular circuit groove, and the driving circuit is connected to a driving controller. The support frame with a conical cross-section is used as the support structure of the IPMC driving device, and a flexible material is arranged on the inner ring of the support frame. By utilizing the fact that the IPMC driving device can generate force and displacement responses under external excitation to realize the function of the anal sphincter, the structure of the present invention is simple, avoiding direct connection and contact with human tissues, and adopting a complete circumferential curved surface, which can effectively prevent leakage. The IPMC driving device is used to support and close the support frame, which has a good control effect on the excretions of gas, liquid and solid. The device has a simple structure, is light in weight, does not require a motor or other transmission devices; has a fast response and can make a response within seconds.

The utility model discloses a disposable anus pressure measuring catheter with a cuff. The disposable anus pressure measuring catheter with the cuff comprises a main tube, an inflation tube is installed on one side of the main tube, an air bag is installed at the front end of the main tube, a pressure measuring instrument is installed at the end, away from the air bag, of the main tube, and inflation equipment is installed at one end of the inflation tube. According to the disposable anus pressure measuring catheter with the cuff, the main tube, the inflation tube and the air bag are arranged, so that the functional recovery condition of the anal sphincter can be indirectly measured conveniently by measuring the change of air pressure data in the anus, and the disposable anus pressure measuring catheter is used by a doctor; the human factor influence of subjectivity of doctors on operation anesthesia and recovery condition judgment of the patients is reduced, misjudgment is not prone to being caused, and the diagnosis accuracy of the doctors is improved.

The embodiment of the invention provides an anal sphincter exercise system, and relates to the technical field of sphincter exercise. The anal sphincter exercising system comprises a silica gel skeleton, the silica gel skeleton is sleeved with a sanitary sleeve, the upper portion of the silica gel skeleton is provided with an acting portion, the lower portion of the silica gel skeleton is provided with an installation portion, the bottom of the acting portion is provided with a concave portion, and an elastic liquid bag is arranged in the silica gel skeleton. A pressure sensor is arranged at the bottom of the elastic liquid bag, a chip and a battery are arranged in the mounting part, and the anti-falling mechanism is arranged on the silica gel framework. According to the device, music with rhythms is played through the host to enable a patient to exercise sphincter along with the rhythms, the patient can complete instruction actions of exercise under the condition of easy timing, the sphincter contracts and extrudes the elastic liquid bag, whether the elastic liquid bag deforms in place or not is detected through the sensor, whether the contraction movement of the sphincter is in place or not is judged, and the patient can take out the sphincter. And the frequency and quality of the contraction function exercise of the anal sphincter can be accurately quantified.

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.

The present application relates to the technical field of biomedical engineering, and particularly relates to a feces hardness evaluation method and system for assisting defecation system, which comprises the following steps: controlling a mechanical arm to insert a probe integrated with a sensor into a rectum; after the probe passes through an anal sphincter, measuring an idling energy consumption; advancing by a unit distance to measure a rectal wall friction energy consumption; continuing to advance to contact feces to measure a total energy consumption; calculating a first feces hardness index based on the idling energy consumption, the friction energy consumption and the total energy consumption, then synchronously calculating a second feces hardness index by using composition data obtained by bioelectrical impedance measurement electrodes, and calculating a third feces hardness index by using pressure data obtained by a pressure sensor, and weighting and fusing the three indexes into a feces comprehensive hardness index. The present application realizes real-time and accurate feces hardness evaluation in the anus and intestines by multi-modal sensing and data fusion, and provides a reliable basis for personalized adjustment of parameter adjustment of the assisting defecation system.

The utility model relates to the field of medical auxiliary instruments, and discloses an exhaust anal tube which comprises a tube body, the tube body is composed of an imbedding end and an outer end, the imbedding end and the outer end are different in thickness and diameter, and a fixing band for stably fixing the tube body in the body of a patient is arranged on the tube body. The exhaust anal tube effectively solves the problems that an existing exhaust anal tube is poor in comfort, after the exhaust anal tube is inserted into the body of a patient, the exhaust anal tube can stimulate the anal sphincter of the patient, and the body feeling of the patient is poor after the exhaust anal tube is arranged in the patient.

The invention discloses a method and system for regulating and controlling the defecation function after ISR operation based on fMRI positioning, and the method comprises the following steps: S1, building a positioning model of fMRI anal sphincter movement; s2, through the constructed positioning model of the anal sphincter movement, an activation area related to the function of executing the anal sphincter movement is selected, and the cerebral cortex function area with the highest connection strength corresponding to the activation area serves as a regulation and control target; and S3, performing paired stimulation on the regulation and control target spots. Besides, a task-state magnetic resonance functional imaging technology is adopted to explore the activation state of the brain motor cortex during rectum and anal canal muscle movement, find functional nerve nuclei or pathways related to anal sphincter movement, accurately position the cortex functional area of the anal and rectum muscle group, and improve the accuracy of the anal and anal muscle group. Therefore, a new treatment scheme is sought for the rectum and anus function recovery of the patient with the low rectal tumor anus protection operation through the TMS.

The application relates to the technical field of medical devices, and discloses an anal and gastrointestinal surgical anal dilatation equipment convenient to disassemble and clean, the upper portion of a base is provided with first anal dilatation pieces and second anal dilatation pieces, a window is formed in the surface of the first anal dilatation piece, the inner wall of the base is symmetrically connected with sliding seats in a sliding mode, the sliding seat comprises a first sliding seat and a second sliding seat, a screw telescopic rod is fixedly connected to the center of the outer wall of the sliding seat, a gear groove is formed in the lower surface of a rotating ring, the gear end of a gear ring is in meshing connection with the gear groove, a fixing assembly is arranged in the base, and the fixing assembly is used for fixing the first anal dilatation pieces and the second anal dilatation pieces. The first anal dilatation pieces and the second anal dilatation pieces are combined and inserted into the anus, the anus is conveniently entered, and the damage to the anus is reduced, the first anal dilatation pieces and the second anal dilatation pieces can be gradually slid and unfolded by rotating the rotating ring, and therefore the anal sphincter of a patient can gradually adapt to the dilated range.

The application provides a defecation dysfunction training instrument, which comprises a support, the support extending along an axial direction for a predetermined length; a plurality of air bag members, the plurality of air bag members being arranged on the support in an axial direction at intervals, each air bag member having an air cavity, and each air cavity being independently arranged and used for air ventilation and expansion; a plurality of air pressure sensors, the plurality of air pressure sensors being in one-to-one communication with the plurality of air bag members; and a data processor, the data processor being electrically connected with the air pressure sensors; the plurality of air pressure sensors detect the changed pressure by accepting the extrusion of the anal sphincter through the expanded air bag members, and the data processor sends a prompt message according to the comparison result of the changed pressure of the plurality of air pressure sensors and the size of a preset pressure. The problem that a patient cannot determine whether the muscle training of the patient reaches the training standard in the process of rectal sphincter training in the prior art is solved.

The invention relates to the technical field of medical instruments, in particular to a silica gel implantation device for replacing anal sphincter, which comprises a silica gel main body, a deformation skeleton and a control assembly. The silica gel body is arranged outside the intestinal canal in a sleeving mode and has a first state for limiting substance discharge and a second state for allowing substance discharge. The side wall of the silica gel body extends along the axis of the silica gel body to form an avoiding channel, and in the process that the silica gel body is arranged on the intestinal canal in a sleeving mode, the mesentery can enter the avoiding channel. The deformation framework is wrapped in the silica gel body, and the deformation framework can deform to drive the silica gel body to conduct state switching. The control assembly is used for receiving external signals and controlling deformation of the deformation framework. Therefore, the mesentery is placed in the avoiding channel, the silica gel main body can be prevented from clamping and pressing the mesentery when the silica gel main body performs state switching, normal blood supply of the intestinal canal is guaranteed, and intestinal canal blood supply obstacles and intestinal canal necrosis caused by the intestinal canal blood supply obstacles are avoided.

The utility model relates to the technical field of medical collection, in particular to an improved infant enema excrement collector which comprises a placing pad, a waist placing groove is formed in the middle of the front face of the placing pad, a sponge pad is arranged at the top of the waist placing groove, a wedge-shaped slope is arranged in the middle of the bottom of the placing pad, and a water inlet is formed in the bottom of the wedge-shaped slope. An inflation hole is formed in the bottom of the wedge-shaped slope, and an excrement and water outlet is formed in the side edge of the placing pad; the number of the protection mechanisms is two, and the two protection mechanisms are distributed on the two sides of the waist placing groove in an axial symmetry mode. The infant anal sphincter protection device has the beneficial effects that by arranging the protection mechanism, threaded bolts on the two sides slide to drive a sliding block to move in a fixing groove, the sliding block drives a fixing rod to move in a fixing hole, the fixing rod drives a protection pad to protect the waist of an infant, and it is avoided that due to immature development of the infant anal sphincter, tolerance is poor, and the infant can feel comfortable. The enema cannot bear stimulation caused by the enema liquid and shake, so that the enema cannot be normally operated.

The application discloses a misaligned liquid dynamic sac petal structure for anal sphincter expansion and contraction. The misaligned liquid dynamic sac petal structure comprises a liquid sac installed in a shell, and liquid dynamic sac petals are arranged on the inner side of the outer wall of the liquid sac in a circumferential interval and form a single-layer sac petal structure. The outer wall of the liquid sac is embedded with a sterile liquid path connected with each liquid dynamic sac petal, which is in communication with a liquid path control unit for controlling fluid pumping in and out, realizing independent expansion and contraction of each flexible liquid sac, adapting to the requirement of gradual change of pressure in the anal canal, avoiding sharp increase and decrease of pressure in the expansion and contraction process, and simultaneously having the overflow safety ability to cope with excessive pressure. Sensors are arranged on the surface of the tissue connection part to dynamically identify whether defecation and exhaust are needed, and the expansion and contraction of the liquid sac is changed through the liquid path control unit. The overall coupling structure formed by the liquid sac and the liquid dynamic branch is easy to implant and replace, and the misaligned arrangement of the liquid dynamic sac petals in the structure can realize effective sealing of the liquid sac.