CN104887349A - In situ artificial rectal sphincter system - Google Patents
In situ artificial rectal sphincter system Download PDFInfo
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- CN104887349A CN104887349A CN201510337986.6A CN201510337986A CN104887349A CN 104887349 A CN104887349 A CN 104887349A CN 201510337986 A CN201510337986 A CN 201510337986A CN 104887349 A CN104887349 A CN 104887349A
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Abstract
The invention relates to an in situ artificial rectal sphincter system. The in situ artificial rectal sphincter system comprises an artificial rectal sphincter body and a sphincter opening and closing control device; the artificial rectal sphincter body is of hollow cylindrical structure, sequentially comprises an artificial recta cavity, an inner layer silicone rubber film responsible for opening and closing the sphincter, sphincter sac, an interlayer silicone rubber plate, an outer layer stereoscopically weaved polyester mesh covering the whole outer part of the artificial rectal sphincter body from inside to outside; the upper and lower ends of the outer layer stereoscopically weaved polyester mesh folded inwards to form an upper end inwards folded stereoscopically weaved polyester mesh and a lower end inwards folded stereoscopically weaved polyester mesh respectively to cover the inner layer silicone rubber film; the sphincter opening and closing control device comprises a sphincter catheter, one end of the sphincter catheter opens at the sphincter sac while the other end is connected with a one-way backflow prevention valve. The in situ artificial rectal sphincter system effectively solves the pressure problem and the tissue fusing problem, is conductive to fixing a prosthesis for avoiding displacement, and also conductive to reducing infection.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of in-situ artificial Hyrtl's sphincter system.
Background technology
Fecal incontinence (Fecal incontinence, FI) also known as anal incontinence, it refer to anus can not the discharge of Autonomous Control liquid or solid feces more than more than one month, main manifestations is lost partially or completely for patient's control ability of defecating clinically.Fecal incontinence becomes a global sociology and hygienic problems already, as a kind of commonly encountered diseases and frequently-occurring disease at each national capital ubiquity.Although this disease is not fatal, but bring huge life inconvenience and the infringement of serious body and mind to patient, therefore the patient even had loses the courage of continuation survival and selects extreme mode to terminate the life of oneself.Have the people up to 7.1% to suffer from fecal incontinence in various degree in larger scale clinical investigation display general population of U.S.'s the nineties in last century, the incidence rate of fecal incontinence raises along with the increase at age and the decline of psychophysiological state.China does not have the authority of this aspect to report so far, but China's population substantial amounts, aging trend is more and more serious, and China's economic development imbalance, health care wait the reasons such as perfect in addition, and fecal incontinence can be infered must allow of no optimist at the incidence of China.
Following a few class substantially can be divided into according to cause of disease fecal incontinence:
1) congenital fecal incontinence: as congenital anal sphincter dysplasia or scarce.
2) neurogenic fecal incontinence: a variety of causes causes central nervous system to unify the disease of injured spinal cords, as the temporary or permanent damage of central nervous system after shock, apoplexy, all can occur temporary or permanent fecal incontinence; If breast, waist, sacrum vertebral fracture compression spinal cord or spinal nerves, can cause paraplegia thus cause fecal incontinence; In addition, rectum close to after anus place mucous membrane resection, rectal wall enteroception neurologic defect also can cause fecal incontinence.
3) myogenic fecal incontinence: anal sphincter is impaired is the common cause causing fecal incontinence with drawing together about hypofunction.The easypro contracting of anus and bowel movement function are that the effector such as interior external sphincter and levator ani m. innervated has come.These muscle tones decline, lax, or cut-off, excision, or form large area cicatrix, all can cause fecal incontinence.The crissum deviating to cause as hemorrhoid, proctoptosis, polyp is of flaccid muscles, tension force declines also can cause fecal incontinence.Crissum muscular dystrophy fecal incontinence can be there is in some old patient.The disease surgery such as ano-rectal manometry, anal fistula cuts off or excision sphincter also can cause fecal incontinence.
4) perineal position wound or maternal infuries: cause because wound or childbirth cause perineal position to tear anal sphincter impaired or scarce as.Wound can belong to neurogenic or myogenic fecal incontinence respectively according to damage location difference strictly speaking; Here why by wound and maternal infuries out single-row because they are the common cause causing fecal incontinence, particularly the latter, have report about have 35% suffer from sphincter injury through cloudy pregnant woman.This just can be interpreted as what women in fecal incontinence proportion comparatively male is high.
5) rectal neoplasm: the sickness rate of colorectal carcinoma occupies the prostatitis of human tumor, annual global colorectal cancer new cases reach the 940000 reason mid-low rectal cancer incidence rates that may change due to dietary structure in China the trend raised year by year.Radical surgery is the first-selected remedy measures for the treatment of colorectal cancer, and for Low Rectal, because its tumor growth position is too low, for reaching surgical radical treatment object, but excision anus becomes the helpless selection of a kind of cruelty.
The treatment of fecal incontinence causes the attention of countries in the world medical worker day by day, and in order to make Patients with Fecal Incontinence recover stool control mode ability, scholars has carried out many-sided research and trial, and summary defines a series of Therapeutic Method.At present, the common method of various countries' treatment fecal incontinence may be summarized to be two large classes and internal medicine conservative treatment and surgical operation therapy.Wherein internal medicine conservative treatment has:
1) Drug therapy: medicine conditioning is the first step of most patient treatment, and the practical situation according to patient uses catharsis medicine, diarrhea and extender etc.; Certainly traditional Chinese medical herbal treatment can also be carried out as taken invigorating the spleen and replenishing QI, rising this solid de-prescription.The symptom of part mild patient fecal incontinence can therefore improvement to a certain extent.
2) muscle of perineum training: the people such as Kegel deliver the article about perineum training for treatment fecal incontinence and urinary incontinence the earliest, perineum shrinks the tonicity that exercise can significantly improve puborectalis and levator ani m., in any vacant time, through enough training, can significantly improve feces Autonomous Control ability.Many scholars it can be used as a base therapy method afterwards, but perineum training is only applicable to slack anus, shrinks unable patient, and can only alleviate fecal incontinence problem to a certain extent, for inapplicable without sphincter patient.
3) biofeedback therapy: biofeedback therapy treatment fecal incontinence principle: the feedback signal of anorectal region is presented to trainer in visual form by machinery or electronic installation, trainer is according to signal intensity, the training of contrast normal signal, crissum muscular contraction force is strengthened, the object of Rectal Sensitivity to reach.Biofeedback therapy can strengthen the muscular strength having the neural muscle controlled, but can not repair or generate new nervous pathway.Biofeedback therapy is effective for the patient with part rectum perceptive function and spontaneous contractions function, therefore the patient outcomes of urge incontinence is better than to the patient of passive incontinence.Following situation is all not suitable for biofeedback therapy: a, serious anal sphincter injury; The damage of b, serious anus sensation; C, sphincter ani internus Resting Pressure are too low; D, pudendum ML extend; E, anal incontinence are with constipation by outlet obstruction.
4) electronic stimulation: electronic stimulation is after an electrode special is inserted anus, with galvanic stimulation anal sphincter and Pelvic floor.As a kind of auxiliary Therapeutic Method, be usually used in nerve fecal incontinence, late result is not affirmed.
Internal medicine conservative treatment is only suitable for the treatment of part patient with slight symptoms, and often can only improve the situation of fecal incontinence to a certain extent, fundamentally can not solve the problem of fecal incontinence; Fecal incontinence patient with severe symptoms is more seemed unable to do what one wishes.Therefore surgical operation therapy often becomes the unique selection of patient with severe symptoms.Common therapeutic method of surgery has:
1) anal sphincter kposthesis: the sphincter two ends scar tissue cut off is separated, sews up.Be used for the case damaged soon, sphincter has function part to account for 1/2.As wound infection should be repaired in 6 ~ December, otherwise sphincter is once atrophy becomes fibrous tissue, finds and sew up all very difficult in art;
2) sphincteroplasty: current multiplex gracilis or gluteus maximus are transplanted around anal canal, replaces or strengthens sphincter function.Be applicable to sphincter to destroy completely or congenital without sphincter, and can not with the patient of Sphincter repair art treatment.Although this method makes moderate progress to stool control mode ability, also there is sphincter function and can not meet the requirement controlled completely, when loose stool or motion intra-abdominal pressure increase, there will be " leakage excrement " phenomenon.Meanwhile, due to complexity of performing the operation, complication many (intestinal tube is narrow, near-end intestinal tube Secondary cases is expanded, scar hyperplasia, graft muscle fatigue deformation etc.), Endodontic failure is often caused;
3) colonic diversion: the ostomy colon by near-end and each layer of stomach wall are sewed up, forms artificial anus.Colonic diversion is not a kind of method for the treatment of fecal incontinence strictly speaking, because colonic diversion itself is still a kind of fecal incontinence state.However, permanent colonic diversion is still the most frequently used helpless selection solving Low Rectal postoperative defecation problem at present.Colonic diversion not only uses inconvenience, also can cause the very big puzzlement of serious personality defect and body and mind to patient.
Be subject to the inspiration of urinary tract artificial sphincter system successful Application, people start to attempt adopting artificial anal sphincter to treat fecal incontinence.Successively be born cover bellows artificial sphincter system, memorial alloy formula artificial sphincter system and electromagnet type artificial sphincter system.Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems: although these sphincter system operation principles are different in prior art, but be all by pressing from both sides the management and control of closing intestinal tube to realize to excrement stream, but intestinal tube is unlike urinary system, it is highstrung to ischemia, folder closes that pressure is excessive will cause intestinal tube ischemic necrosis, and folder closes the too small excrement stream that will cause of pressure and cannot be controlled completely, causes fecal incontinence.It's a pity, although scholars has paid unremitting effort for this reason, do not find the way solving stress problems well all the time.Various artificial anal sphincter did not all take into full account tissue fusion problem in the past, and they and surrounding tissue lack effective fixing in addition, be easy to cause prosthese in vivo position change and there is dead space.A major reason of the existence of dead space inherently hydrops, infection.Therefore, except this root problem of stress problems, the high infection rate in tissue fusion and device displacement problem are also that artificial anal sphincter system was not treating the major reason made a breakthrough in fecal incontinence in the past.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defect how overcoming prior art, provides a kind of in-situ artificial Hyrtl's sphincter system.This in-situ artificial Hyrtl's sphincter system one effectively solves intestinal tube pressurized ischemia and stool can not by the contradiction controlled completely and stress problems; Two is effectively solve tissue fusion problem, allows prosthese and autologous tissue combine together, has two aspect effects: first contribute to fixed fae body and do not allow it be shifted, its two can contribute to reduce infect generation.
Technical scheme of the present invention is as follows:
This kind of in-situ artificial Hyrtl's sphincter system, comprises artificial Hyrtl's sphincter body and sphincter folding control device;
Described artificial Hyrtl's sphincter body is hollow cylindrical structure, and it is followed successively by artificial rectum enteric cavity from inside to outside, is responsible for the internal layer silicone rubber membrane of sphincter folding, sphincter blister cavities, intermediate layer silicane rubber plate, cover the outer stereo weaving polyester mesh sheet of the artificial whole outside of Hyrtl's sphincter body;
The upper and lower inward at both ends opisthotonos of described outer stereo weaving polyester mesh sheet covers internal layer silicone rubber membrane, is respectively upper end inside opisthotonos stereo weaving polyester mesh sheet and lower end inside opisthotonos stereo weaving polyester mesh sheet;
Described sphincter folding control device comprises sphincter conduit, and described sphincter tube at one end is opened on sphincter blister cavities, and the other end is connected with the unidirectional anti-valve that backflows.
Design like this, first, by adopting artificial Hyrtl's sphincter body, efficiently solves the sphincter pressure problem that any one artificial sphincter in the past all cannot solve very well.Artificial rectum has allowed host's intestinal tube thoroughly free from pressure out, and due to the worry without intestinal tube ischemic necrosis, the closedown and the opening that realize artificial rectum enteric cavity will be easily a lot.
Secondly, set up stereo weaving polyester webs lamella: drawing artificial anal sphincter in the past, not carry out necessity fixing, easily produces displacement, and cause the lesson of failure of apparatus, therefore set up stereo weaving polyester webs lamella, be beneficial to device and fixedly secured in vivo.Except fixing, prior object is that host's intestinal tube can fusion growth can be integrated with artificial rectum.In addition, setting up when can also limit this artificial sphincter system works of polyester webs lamella expands outwardly, thus the sense of discomfort of the extruding infringement being conducive to alleviating to surrounding tissue and patient.
Then, utilize air to do and fill sacculus medium: utilize air do medium except because aboundresources is complete, desirable conveniently except, also have a reason to be exactly light.Because the quality of air is almost negligible, therefore will patient can be allowed as heavy liquid media to do not feel like oneself or cause device to be shifted because of effect of inertia.
As optimization, described sphincter folding control device also comprises the pressure transducer for detecting artificial rectum intestinal cavity pressure in real time, and the described sphincter conduit Bonding pressure indicating alarm device be simultaneously connected with the unidirectional anti-valve that backflows.Design like this, by arranging pressure transducer and pressure indicating alarm device, patient is learnt in time, and enteric cavity pressure changes, and reminds patient's defecation, more humane.
As optimization, described intermediate layer silicane rubber plate thickness is 4-6 times of internal layer silicone rubber membrane thickness; Described internal layer silicone rubber membrane and intermediate layer silicane rubber plate upper and lower two ends compact siro spinning technology are integrated, and described sphincter blister cavities is the middle airtight lacuna formed of internal layer silicone rubber membrane and intermediate layer silicane rubber plate.Design like this, to internal layer silicone rubber membrane centration can be made during the gas injection of sphincter blister cavities to expand, while meeting the artificial rectum of shutoff, reduce the deformation of artificial rectal tube because causing by the effect of reverse extrusion power to greatest extent, thus reduce artificial rectal tube the extruding of surrounding tissue is damaged, and the risk of the dead space that may cause because deformation is excessive and infection.
As optimization, described artificial Hyrtl's sphincter body is located at the position near the position of anus or the original anus of patient of hypomere in rectum.Patient for row Abdominal pelvic resection excision anus should be located at the position of the original anus of patient.Like this, by " original position " design, avoid patient and suffer the embarrassment of abdominal part fistulation and helpless situation, make them can obtain the quality of life of intimate ordinary person, regain the confidence of life, in addition, be convenient to install and range of application is wider.
As optimization, the height of described sphincter blister cavities is the height that the height of artificial Hyrtl's sphincter body deducts upper end inside opisthotonos stereo weaving polyester mesh sheet and lower end inside opisthotonos stereo weaving polyester mesh sheet.Design like this, is convenient to processing and result of use is better.
As optimization, described sphincter catheter opening is positioned at the middle part of described sphincter blister cavities in the end of sphincter blister cavities.Design like this, is convenient to install and result of use is better.
As optimization, described pressure transducer and airway share same opening or are opened on separately artificial rectum enteric cavity top.Design like this, is convenient to install and result of use is better.
Technical scheme of the present invention has following beneficial effect:
The present invention, structure is simple, design science, novel, cost is very low, simple to operate, easy to use, first, " original position " designs, avoid patient and suffer the embarrassment of abdominal part fistulation and helpless situation, make them can obtain the quality of life of intimate ordinary person, regain the confidence of life; In addition, this in-situ artificial Hyrtl's sphincter system is due to the initiative concept proposing artificial rectum, and therefore the contradiction between intestinal tube pressurized ischemic necrosis and fecal incontinence be resolved; In addition, this sphincter system has taken into full account that tissue fusion problem devises outer three-dimensional braided polyester stratum reticulare, this design can be played fixed fae body on the one hand and not allow the object of its movement, and prosthese and the growth of patient autologous tissue can also be allowed on the other hand to combine together thus reduce the generation of infection.Finally, adopt air to control sphincteral folding, air is except resource is desirable everywhere, its quality is almost negligible, this makes it can not as other sphincter system, easy because of effect of inertia displacement because of too heavy, causes device malfunctioning.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, this in-situ artificial Hyrtl's sphincter system is described further:
Fig. 1 is the fragmentary longitudinal section structural representation of this in-situ artificial Hyrtl's sphincter system;
Fig. 2 is the sphincter closed condition structural representation of this in-situ artificial Hyrtl's sphincter system;
Fig. 3 is the sphincter open state structural representation of this in-situ artificial Hyrtl's sphincter system.
In figure: 1 be artificial Hyrtl's sphincter body, 1.1 be artificial rectum enteric cavity, 1.2 be internal layer silicone rubber membrane, 1.3 be sphincter blister cavities, 1.4 be intermediate layer silicane rubber plate, 1.5 be outer stereo weaving polyester mesh sheet, 1.6 be upper end inside opisthotonos stereo weaving polyester mesh sheet, 1.7 be lower end inside opisthotonos stereo weaving polyester mesh sheet, 2 be sphincter folding control device, 2.1 be sphincter conduit, 2.2 for the unidirectional anti-valve that backflows, 2.3 be pressure indicating alarm device.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in more detail.
As shown in Figure 1-Figure 3, this in-situ artificial Hyrtl's sphincter system is animal (the fragrant pig of Bama of Guangxi) Dam Configuration Design experimentally, comprises artificial Hyrtl's sphincter body 1 and sphincter folding control device 2;
Described artificial Hyrtl's sphincter body 1 is in hollow cylindrical structure, and it is followed successively by artificial rectum enteric cavity 1.1, the internal layer silicone rubber membrane 1.2 being responsible for sphincter folding, sphincter blister cavities 1.3, intermediate layer silicane rubber plate 1.4 from inside to outside, covers the outer stereo weaving polyester mesh sheet 1.5 of the artificial whole outside of Hyrtl's sphincter body 1;
Described intermediate layer silicane rubber plate 1.4 thickness is 5 times of internal layer silicone rubber membrane 1.2 thickness; Described internal layer silicone rubber membrane 1.2 and intermediate layer silicane rubber plate about 1.4 two ends compact siro spinning technology are integrated, and described sphincter blister cavities 1.3 is the middle airtight lacuna formed of internal layer silicone rubber membrane 1.2 and intermediate layer silicane rubber plate 1.4; Described outer stereo weaving polyester mesh sheet about 1.5 inward at both ends opisthotonos covers internal layer silicone rubber membrane 1.2, is respectively upper end inside opisthotonos stereo weaving polyester mesh sheet 1.6 and lower end inside opisthotonos stereo weaving polyester mesh sheet 1.7;
Described sphincter folding control device 2 comprises sphincter conduit 2.1, and described sphincter conduit 2.1 one end open is in sphincter blister cavities 1.3, and the other end is connected with the unidirectional anti-valve 2.2 that backflows.
Concrete, described sphincter folding control device 2 also comprises the pressure transducer for detecting pressure in artificial rectum enteric cavity 1.1 in real time, and the described sphincter conduit 2.1 Bonding pressure indicating alarm device 2.3 be simultaneously connected with the unidirectional anti-valve 2.2 that backflows.Like this, pressure transducer detects artificial rectum intestinal cavity pressure in real time, and by the change of pressure-indication means real time reaction intestinal cavity pressure, will trigger alarm when pressure reaches certain value, send the sound and remind patient to remove defecation.
Concrete, described artificial Hyrtl's sphincter body 1 to be located in rectum hypomere near the position of anus.
Concrete, the height of described sphincter blister cavities 1.3 is the height that the height of artificial Hyrtl's sphincter body 1 deducts upper end inside opisthotonos stereo weaving polyester mesh sheet 1.6 and lower end inside opisthotonos stereo weaving polyester mesh sheet 1.7.
Concrete, the end that described sphincter conduit 2.1 is opened on sphincter blister cavities 1.3 is positioned at the middle part of described sphincter blister cavities 1.3.
Concrete, described pressure transducer and airway share same opening.
Concrete, the height of described artificial Hyrtl's sphincter body 1 is 30mm, and external diameter is 20mm.
Concrete, described intermediate layer silicane rubber plate 1.4 thickness is 5 times of internal layer silicone rubber membrane 1.2 thickness, and the thickness of described internal layer silicone rubber membrane 1.2 is 0.2mm, and its effect is responsible for closing or open artificial rectum; The thickness of intermediate layer silicane rubber plate 1.4 is 1mm, for artificial rectum main part, because intermediate layer silicane rubber plate 1.4 thickness far exceedes internal layer silicone rubber membrane 1.2, and the former is 5 times of the latter, like this to internal layer silicone rubber membrane 1.2 centration can be made during 1.3 gas injection of sphincter blister cavities to expand, while meeting the artificial rectum of shutoff, reduce the deformation of artificial rectal tube because causing by the effect of reverse extrusion power to greatest extent, thus reduce artificial rectal tube the extruding of surrounding tissue is damaged, and the risk of the dead space that may cause because deformation is excessive and infection.
Concrete, the material of described sphincter conduit 2.1 is silicone rubber, and its length is 200mm, and external diameter is 3mm, and internal diameter is 1.5mm.
Artificial sphincter main part outermost layer is made up of stereo weaving polyester mesh sheet, stereo weaving polyester mesh sheet is except covering the whole outside of artificial rectum, also need to cover each 5mm in the upper and lower two ends of internal layer from upper and lower inward at both ends opisthotonos, namely the height of the inside opisthotonos in upper end stereo weaving polyester mesh sheet 1.6 and lower end inside opisthotonos stereo weaving polyester mesh sheet 1.7 is 5mm.(as Fig. 1).Why design like this, main purpose solves the problem that artificial Hyrtl's sphincter prosthese and intestinal tube and surrounding tissue fusion growth be integrated.In addition, due to the existence of stereo net sheet, make the more outwards deformation under gas pressure of artificial rectum, be more conducive to alleviating the formation that patient does not accommodate Periprosthetic dead space.Stereo weaving polyester mesh sheet, polypropylene mesh, expanded PTFE mesh sheet are all the mesh sheet of comparative maturity, all have very high biocompatibility, and toxic and side effects is low, stable in physicochemical property is good artificial prosthesis material.Why select the former to be because stereo weaving polyester mesh sheet all has the design of large mesh compared with polypropylene mesh, applicable granulation tissue and immunocyte enter has stronger anti-infection ability (avoiding Periprosthetic to infect is the prerequisite ensureing that prosthese and surrounding tissue combine together); But stereo weaving polyester mesh sheet quality is more soft than polypropylene mesh, plasticity is strong, is more suitable for folded deformation.Although expanded PTFE quality softness is applicable to folding plastotype, because its mesh is too small, granulation tissue and macrophage etc. are very difficult to be entered, and causes its anti-infection ability lower, easily causes the generation infected.In addition, in e-PTFE four ethylene body, crimp contraction is too high, easily causes prosthese to be out of shape, and then affects it and draw together about function.
In addition, the height of described artificial Hyrtl's sphincter body suitably can adjust according to patient's intestinal tube external diameter is different with external diameter.The length of described sphincter conduit also suitably can adjust according to patient size.
Operation principle:
First together with artificial rectum is identical with patient's intestinal tube stage casing by operation, owing to devising outer stereo weaving polyester mesh sheet, and outer stereo weaving polyester mesh sheet all inside opisthotonos up and down, this makes patient's intestinal tube can combine together with artificial rectum growth, realizes the seriality of intestinal tube.In order to the generation of protecting from infection will take strict sterile working, and carry out the provisional fistulation of colon, in case fecal pollution anastomotic stoma causes poor healing.After Using prosthesis March, confirm that anastomotic healing is firm through cardiografin radiography, intestinal tube seriality is good, just can start artificial Hyrtl's sphincter system.
As shown in Figure 2, prevent backflowing valve by sphincter conduit to the gas injection of sphincter blister cavities through unidirectional, after reaching certain pressure in sphincter blister cavities, internal layer silicone rubber membrane just can centration expand and the final artificial rectum enteric cavity of shutoff, due to unidirectional anti-valve resilience of backflowing, gas can not Self-discharged, thus the constant pressure that can maintain for a long time in sphincter blister cavities is constant, enteric cavity is closed, the object of restraining excrement stream when realizing long; Enteric cavity is accumulated in when having gas or feces, artificial rectum intestinal cavity pressure change can be communicated to pressure indicating alarm device by internal layer silicone rubber membrane through sphincter conduit, when pressure reaches setting pressure, pressure indicating alarm device can be sounded warning, reminds patient to remove defecation.As shown in Figure 3, now only need patient by gas emptying, internal layer silicone rubber membrane can rapid resilience under natural resiliency effect, and artificial rectum enteric cavity reopens, and stool just can have been discharged.So not only achieve the control of defecating but also the pressurized ischemic necrosis that can not cause intestinal tube owing to not extruding patient self intestinal tube, because pressure can adjust according to everyone different situations, no matter patient is for which kind of state, is greatly the possibility which kind of form (solid, semisolid, liquid) all there will not be fecal incontinence.About this sphincter system folding only needed for 10 seconds after tested, (60 seconds at least other artificial anal sphincter folding used times both at home and abroad compared with existing artificial anal sphincter device, 6-7 minute at most), obviously in response speed, also there is obvious superiority.
Above-mentioned in-situ artificial Hyrtl's sphincter system, structure is simple, design science, novel, cost is very low, simple to operate, easy to use, first, " original position " designs, avoid patient and suffer the embarrassment of abdominal part fistulation and helpless situation, make them can obtain the quality of life of intimate ordinary person, regain the confidence of life; In addition, this in-situ artificial Hyrtl's sphincter system is due to the initiative concept proposing artificial rectum, and therefore the contradiction between intestinal tube pressurized ischemic necrosis and fecal incontinence be resolved; In addition, this sphincter system has taken into full account that tissue fusion problem devises outer three-dimensional braided polyester stratum reticulare, this design can be played fixed fae body on the one hand and not allow the object of its movement, and prosthese and the growth of patient autologous tissue can also be allowed on the other hand to combine together thus reduce the generation of infection.Finally, adopt air to control sphincteral folding, air is except resource is desirable everywhere, its quality is almost negligible, this makes it can not as other sphincter system, easy because of effect of inertia displacement because of too heavy, causes device malfunctioning.
Above-mentioned detailed description of the invention is only concrete case of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But every content not departing from technical solution of the present invention, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, all should fall into scope of patent protection of the present invention.
Claims (7)
1. an in-situ artificial Hyrtl's sphincter system, is characterized in that: comprise artificial Hyrtl's sphincter body and sphincter folding control device;
Described artificial Hyrtl's sphincter body is hollow cylindrical structure, and it is followed successively by artificial rectum enteric cavity from inside to outside, is responsible for the internal layer silicone rubber membrane of sphincter folding, sphincter blister cavities, intermediate layer silicane rubber plate, cover the outer stereo weaving polyester mesh sheet of the artificial whole outside of Hyrtl's sphincter body;
The upper and lower inward at both ends opisthotonos of described outer stereo weaving polyester mesh sheet covers internal layer silicone rubber membrane, is respectively upper end inside opisthotonos stereo weaving polyester mesh sheet and lower end inside opisthotonos stereo weaving polyester mesh sheet;
Described sphincter folding control device comprises sphincter conduit, and described sphincter tube at one end is opened on sphincter blister cavities, and the other end is connected with the unidirectional anti-valve that backflows.
2. in-situ artificial Hyrtl's sphincter system as claimed in claim 1, it is characterized in that: described sphincter folding control device also comprises the pressure transducer for detecting artificial rectum intestinal cavity pressure in real time, and the described sphincter conduit Bonding pressure indicating alarm device be simultaneously connected with the unidirectional anti-valve that backflows.
3. in-situ artificial Hyrtl's sphincter system as claimed in claim 1, is characterized in that: described intermediate layer silicane rubber plate thickness is 4-6 times of internal layer silicone rubber membrane thickness; Described internal layer silicone rubber membrane and intermediate layer silicane rubber plate upper and lower two ends compact siro spinning technology are integrated, and described sphincter blister cavities is the middle airtight lacuna formed of internal layer silicone rubber membrane and intermediate layer silicane rubber plate.
4. in-situ artificial Hyrtl's sphincter system as claimed in claim 1, is characterized in that: described artificial Hyrtl's sphincter body is located at the position near the position of anus or the original anus of patient of hypomere in rectum.
5. in-situ artificial Hyrtl's sphincter system as claimed in claim 2, is characterized in that: the height of described sphincter blister cavities is the height that the height of artificial Hyrtl's sphincter body deducts upper end inside opisthotonos stereo weaving polyester mesh sheet and lower end inside opisthotonos stereo weaving polyester mesh sheet.
6. in-situ artificial Hyrtl's sphincter system as claimed in claim 5, is characterized in that: described sphincter catheter opening is positioned at the middle part of described sphincter blister cavities in the end of sphincter blister cavities.
7. in-situ artificial Hyrtl's sphincter system as claimed in claim 6, described pressure transducer and airway share same opening or are opened on separately artificial rectum enteric cavity top.
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