66 results about "Anal canal epithelium" patented technology

Devices and methods are provided for ablating areas of the gastrointestinal tract affected with certain benign, pre-cancerous, or early cancerous lesions that originate within the epithelium and are limited to the mucosal layer of the gastrointestinal tract wall. Examples of such lesions include benign conditions such as cervical inlet patch (ectopic gastric mucosa in the upper esophagus), as well as pre-cancerous and cancerous conditions such as intestinal metaplasia/intra-epithelial neoplasia/early cancer of the stomach, squamous intra-epithelial neoplasia and early cancer of the esophagus, oral and pharyngeal leukoplakia, flat colonic polyps, anal intra-epithelial neoplasia (AIN), and early cancers of the anal canal. Ablation, as provided the invention, commences at the epithelial layer of the gastrointestinal wall and penetrates deeper into the gastrointestinal wall in a controlled manner to achieve a successful patient outcome, the latter of which is defined generally as eradication of the targeted lesion, and/or a change in the targeted lesion to prevent or forestall patient morbidity. Embodiments of the device include an ablational electrode array that spans 360 degrees and an array that spans an arc of less than 360 degrees.

A proctoscope which comprises a body preferably in the form of a hollow cylinder which makes it possible to insert it in the anal canal of a patient. The body of the proctoscope is provided with a construction as a level of the part of a distal end and with an aperture and a handhold on the other end. The body of the proctoscope is also provided with a passage in order to form a surgical window oriented towards the internal free zone thereof. The surgical window is formed in the external wall of the body in such a way that it can enter the part of the distal end by contracting itself.

A device for treating fecal incontinence in a subject is provided. The device includes a plug configured for positioning mostly within an anal canal of the subject.

A method and apparatus for minimizing fecal incontinence in a subject, is disclosed. An inhibition action incontinence device includes a truncated cone with an angled concavity at a top portion. The truncated cone is positioned at the external opening of the anal canal. The truncated cone may be positioned to effect a positive pressure on the external sphincter muscles and the anal slit across the peri-anal tissues. It is believed that the truncated cone exploits the voluntary inhibition action of the external sphincter muscles and the simple mechanical closure of the anal slit to decrease fecal incontinence and soiling.

Devices and methods for preventing or reducing the severity of hemorrhoids include a raised portion and a base, where the raised portion extends in a first direction away from the base and is shaped to engage and apply pressure to a region of a patient subject to hemorrhoids. The devices may further include a plug for insertion into the anal canal to engage and apply pressure to another region of the patient subject to hemorrhoids. The methods include securing the device in an engagement position to apply the pressure to prevent or reduce the severity of hemorrhoids. Such devices and methods are especially applicable during the childbirth process.

A rectal thermometer for measuring the temperature of a patient including a disk or oval-shaped member having a circumferential edge and first and second sides. Along the edge is a temperature display that is viewable during the temperature taking process without having to first remove the thermometer from the anal canal. The first and second sides form a concave shape and include an actuation switch and battery compartment. Connected to the main housing via a probe guard portion is a controlled-depth temperature sensing probe which can be fully inserted into the anal canal without concern for over-insertion. The probe guard portion, which may be formed of flexible material, is adapted such that its thickness gradually increases proximate the main housing and serves to slow down the entry of the probe within the anal canal. Finally, the rectal thermometer includes a holder having a proximal end for covering the housing and a distal end for covering the probe. The distal end also houses an enclosed portion having rattle balls which allow the thermometer holder to serve as an amusement device for the child.

The invention belongs to the field of the medical application of a lauromacrogol injection, and particularly relates to application of a lauromacrogol injection as a medicament for treating internal hemorrhoid. Internal hemorrhoid is one of hemorrhoids, which occurs above the pectinate line of the anal canal and is a commonly encountered disease having the highest incidence rate among the hemorrhoids; for majorities of people, internal hemorrhoid bleeding is a disease difficult to deal with; and when the internal hemorrhoid bleeds too much, secondary anemia can be caused. In the invention, the lauromacrogol injection is injected into the hemorrhoid, so that an aseptic inflammation is produced and is then gradually fiberized, thus realizing the treatment of the internal hemorrhoid. The lauromacrogol injection can wrap veins and arterioles in the hemorrhoid, so that a protective layer can be formed at the peripheries of the veins and arterioles, thereby preventing weak blood vessels from bleeding due to damage caused by defecation and other factors; fiber textures can occlude blood vessel cavities, eliminate or lessen the expansion and congestion of the veins and atrophy the hemorrhoid; because of the fiberization process, a relaxed mucous membrane can be fixed on the muscular wall thereunder again through the fiber textures, thereby eliminating the symptom.

The invention relates to a source applicator for anal canal tumor radiotherapy, the source applicator comprises a cylindrical source applicator body of which the diameter is 3cm, wherein the front end of the source applicator body is a spherical arc, the front segment of the source applicator body is a right cylinder segment of which the length is 8.5cm, the right cylinder segment comprises the spherical arc at the front end, the rear segment of the source applicator body is bent in a manner of a 150-degree arc, the arc length of an introvert of an arc-shaped bent segment is 5cm, the source applicator body is internally and axially provided with three source applying tubes which are eccentrically arranged in a semicircle of the introvert side of the cross section of the source applicator body and distributed in a manner of a circular curve, and the distance between the center of each source applying tube and the outer wall of the introvert side of the source applicator body is 5.5cm; an arc between the circle center of the first source applying tube and the circle center of the second source applying tube is equal to an arc between the circle center of the second source applying tube and the circle center of the third source applying tube, and a central angle corresponding to the arc is 60 degrees. The source applicator has a good radiotherapy effect on nidus that part carcinoma of the anal canal spreads outside the anus edge, reduces the possibility of tumor recurrence and facilitates radical cure of the tumor.

The invention relates to a device for examining rectum-anal canal mucosal lesion tissues. The device comprises an image acquisition portion, an image processing portion, an image reconstruction portion and an image display portion. The image acquisition portion is used for acquiring rectum-anal canal mucosal images; the image processing portion is used for processing image data acquired by the image acquisition portion; the image reconstruction portion is used for reconstruction of the rectum-anal canal mucosal images shot by the image acquisition portion; the image display portion is used for displaying the images generated by the image reconstruction portion. The device has advantages that the contrast ratio of surface blood capillary and subcutaneous microvascular imaging is increased, the color tone of lesions is deeper, boundaries of the lesions and surrounding normal mucosa are clearer, blood vessel morphological changes and texture images can be observed clearly, and accordingly direct references can be provided for doctors to recognize the lesions, judge benign or malignant tumors and the like, diagnosis sensitivity can be improved, accuracy in lesion range judgment is achieved, and corresponding surgical operations can be guided.

The invention relates to the technical field of medical equipment, in particular to a novel anal canal aerofluxus and defecation device. The device comprises a canal body, an air bag, a medicine adding pipe, a flow speed regulator, a one-way valve and a negative-pressure drainage bottle, wherein the head portion of the canal body is inserted into the anus, the air bag is arranged close to the head portion of the canal body, and side holes are formed in the front portion and the rear portion of the air bag; one part of the medicine adding pipe is embedded in the wall of the canal body and extends to the head portion of the canal body, and the other part of the medicine adding pipe is arranged outside the canal body and is provided with a switch valve; a medicine adding pipe air bag is arranged at the end, in the head portion of the canal body, of the medicine adding pipe; the canal body is provided with the medicine adding pipe and the flow speed regulator, and the tail end of the canal body is connected with the negative-pressure drainage bottle and provided with the one-way valve. The device has aerofluxus and defecation functions and medicine can be added.

The invention discloses an anus dilator, which comprises a cylindrical body, a conical guide part and an externally dilated wide edge, wherein the guide part is connected with the far end of the body, and the wide edge is connected with the near end of the body; and the anus dilator also comprises a cylindrical air bag matched wit the body, wherein the air bag is sleeved on the outer surface of the body, and the air bag is communicated with a fluid source through a catheter. Through the anus dilator seat, the anus and the anal canal of a patient can be gradually and controllably enlarged, and the sphincter of the anus can adapt to the amplitude spread by an anus dilator seat before the anus dilator seat is inserted so as to avoid anal fissure and relieve the pain of the patient. The anus dilator can be widely applied to surgical operations.

The invention provides an electrode device for simulating the anal canal and the rectum. The electrode device for simulating the anal canal and the rectum comprises a rubber balloon used for being placed in the rectum of the human body, the surface of the rubber balloon is provided with four electrodes, a rectum pressure sensor is arranged besides each electrode, the rear end of the rubber balloon is provided with a cylindrical sponge body which corresponds to the anal canal position of the human body and is used for fixing and supporting, the cylindrical sponge body is provided with one or more ring-shaped electrodes, a corresponding anal canal pressure sensor is arranged besides each ring-shaped electrode, a supporting guide tube is arranged inside the rubber balloon and the cylindrical sponge body in a penetrating mode, and a ventilating tube for inflating and deflating of the balloon is arranged inside the supporting guide tube. Each electrode is connected with a motor control wirer, each rectum pressure sensor is connected with a signal transmitting wire, a ring-shaped electrode control wire is led out of each ring-shaped electrode, a signal transmitting wire is led out of each anal canal pressure sensor, and all the control wires and the transmitting wires form a wiring harness, and the wiring harness is led out of the supporting guide tube.

The present invention relates to a probe (1) for insertion in a patient's anal canal. Said probe comprises a hollowed (6) tubular member having a closed end (3) adapted to enter the anal canal and an oppositely arranged open end (2) for receiving surgical instruments, at least one longitudinally extending groove (4, 4a, 4b, 4c) being provided in the sidewall of the hollowed member so as to allow a part of the patient's anal canal to enter into the groove, said groove being accessible for examination and treatment of said part of the anal canal via an opening (5, 5a, 5b, 5c) near said open end of the hollowed member.

The invention relates to an endoscope through which the anorectal situation can be seen directly. The endoscope consists of an endoscope body, an inner core, a handle and a illuminating apparatus. The endoscope body is made of transparent materials, a ring of point sources of light are provided at the inner opening of the endoscope body, the two electrodes are connected with an electric power which could be an embedded battery, and a control switch is positioned on the handle. Direct observation of the middle and lower parts of the anorectal canal at a crimple state or an expansion state can be performed.

The invention provides an anal canal with an air sac fixing device, which greatly reduces pain of patients. A front air sac and a rear air sac are arranged at the tail end outside the anal canal, the front air sac is connected with a front air inflation sac through a front air inflation tube, the rear air sac is connected with a rear air inflation sac through a rear air inflation tube, and scales are arranged on the anal canal. The improved anal tube has the advantages of being simple in result, convenient in use and safe, can remain the length in an intestinal canal according to the needs of the operations, and has remarkable therapeutic effects.

The invention belongs to the field of medical equipment, and particularly relates to a convenient-to-clean anti-backflow and anti-leakage enemator. The anti-backflow and anti-leakage enemator comprises an anal dilatation device mounted on the anus and an anal canal device left in the anus; the anal dilatation device comprises a perianal ring, a pull piece and an anal plug piece; the anal canal device and the anal dilatation device work cooperatively, the anal dilatation device can prevent the anus from contracting after dilating the anus, the anal canal device can be conveniently placed, frictional damage to the anus and the inner wall of the anorectum can be prevented, and the hidden danger of injury to a patient is reduced; the anal canal device and the anal dilatation device are designed in a split mode, the detaching is convenient, and the cleaning of the anal canal device and the anal dilatation device are convenient, and the anal canal device and the anal dilatation device are instable connection and sealing; leakage and backflow of clysis liquid can be prevented by matching with a flow limiting clamp installed on a flow guide tube, and a universal tube clamp is matched witha tube clamp A or a tube clamp B to form a channel through rotation of a three-way valve handle on a three-way device. The anorectum exhaust function and the enema function can be rapidly switched, consumed time is shortened, the clamping block enema operation progress is accelerated, and discomfort of a patient is reduced.

The invention provides a medical enema machine capable of automatically adjusting the pressure, which comprises a power supply circuit and a speed regulating air pump, wherein the power supply circuit is provided with a first power supply output end and a second power supply output end, the speed regulation air pump is connected with the second power supply output end, the first power supply output end and the second power supply output end are connected through a photoelectric coupler, and a pressure regulating circuit is connected between the second power supply output end and the speed regulating air pump. The medical enema machine is characterized by further comprising a singlechip microcomputer and a pressure sensor which are electrically connected, wherein the output end of the pressure sensor is connected with a pressure signal acquisition pin of the singlechip microcomputer, and an output duty ratio pin of the singlechip microcomputer is connected with the pressure regulating circuit. According to the invention, the speed regulating air pump is electrified and operates so as to improve the pump-in or pump-out pressure, the pressure sensor acquires pressure in the anal canal in real time, the acquired pressure is processed by the singlechip microcomputer, and the operating state of the pressure regulating circuit is controlled according to a processing result, so that an average voltage value loaded on a speed regulating air pump brushless motor is regulated so as to regulate the average rotating speed of the brushless motor, and thus the flow of the speed regulating air pump is regulated, thereby achieving the purposes of automatic detection and automatic pressure regulation.

The invention discloses an anal tube and rectum drainage device. The anal tube and rectum drainage device comprises a tubular body. One end of the body is a blind end, a drainage outlet is formed in the other end of the body, the drainage outlet is provided with a drainage valve, multiple drainage side holes are formed in the tube wall of the body, an expansion part is arranged on the body, and scale marks are arranged between the expansion part and the drainage outlet. The anal tube and rectum drainage device has good practicality and multiple advantages in clinical application, and has no stimulation or mechanical harm to anal tube skin and mucosa. It can be guaranteed that secreta or blood can be smoothly drained out of the anus. Meanwhile, it can be guaranteed that fart of a patient isnot blocked, abdominal distension of the patient is avoided, gastrointestinal functions are restored as soon as possible, and mechanical damage to operation wound surfaces can be remarkably reduced.