CN100493474C

CN100493474C - Implanted artificial anus

Info

Publication number: CN100493474C
Application number: CN 200610084927
Authority: CN
Inventors: 罗永�
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-02
Filing date: 2006-06-02
Publication date: 2009-06-03
Anticipated expiration: 2026-06-02
Also published as: CN1868421A

Abstract

An implantation artificial anus for controlling defecation is composed of an artificial pad consisting of a supporting frame with 3 fine tubes and 3 liquid bags, and a control system consisting of a miniature pump communicated with said 3 liquid bags and a liquid storage bag.

Description

Implanted artificial anus

Technical field

A kind of implanted artificial anus relates to the artificial anus who uses in a kind of mechanical implant into body.

Background technology

Unite the art formula of excising rectal cancer from what Miles in 1908 advocated proposition through the abdomen perineum, the progress of various in the last hundred years improvement art formulas and Comprehensive Treatment reaches about 60% 5 years survival rates of rectal cancer patient, and early stage 5 years survival rates of radical correction reach 80-90%.Along with the raising of survival rate, the problem of life quality causes the extensive concern of medical circle.The anus that how to replace excision recovers the focus that the nature anal function is this difficult problem as far as possible.Existing conventional way is the stomach wall people anus of faking, management after operation inconvenience, and make patient and relatives be difficult to psychologically accept.

The method of recovering about anal function mainly contains two types at present.One class is to rebuild or flesh by operation. meat is transplanted and is replaced anal sphincter function, the sphincteral art formula of anal reconstruction to mainly contain the folding anal canal Reconstruction of (1) colon; (2) rebuild rectum angle, the collapsible anus Reconstruction of colon, (3) colon storage pocket type anus Reconstruction.Replace the art formula of anal sphincter to mainly contain (1) gracilis muscle transposition anus Reconstruction by muscle transplantation, (2) gluteus maximus is transplanted the anus Reconstruction.More than the recovery of operation anal function is unsatisfactory, and makes the patient stand bigger operation wound.So not extensive use clinically for many years.Another kind of is exactly to design using artificial anal sphincter prosthese to insert anus position at the bottom of the basin.Nineteen ninety-five, Zhejiang University insulted the conception that antidimmer etc. has proposed " original position artificial anus's preliminary study ", mainly made a class pelvic cavity device by silastic material.Be made of artificial utricule and intermediate plate, finger, rectum passes from utricule, and utricule is similar to ampulla of rectum portion, and the intermediate plate finger is positioned at the utricule bottom, and the switching of anus is controlled in operation by hand.Calendar year 2001 Xian Medical Univ also the someone similar device has been proposed, be to constitute by metal material, do not have the report of animal experiment and clinical practice.Reported that " the artificial anal sphincter device was treated serious anal incontinence; be the anal canal casing bit of an oversleeve type; four tame hospitals such as Rome, ITA, Naples implement " artificial anal sphincter " implantation to the female patient that 28 examples are suffered from serious anal incontinence; complication has the necrosis of anal canal burn into, infection, pain, wound dehiscence etc. in 1996 abroad.Conclusion is that 3/4ths patient's defecation, incontinence situation make moderate progress, but early infection, and complication such as rectum corrosion are still urgent problem.Shanghai children's hospital in 2003 executes simulation such as die for a righteous cause and makes " artificial anal sphincter " device, 12 routine dogs has been done experiment, but do not seen clinical report.In sum, consult 1985-2005 years about more than 1,000 piece in artificial anus's all kinds of report articles, tens of kinds of various type of surgery because defective such as the control defecation is undesirable, operation wound is big, do not have a kind of method can be in clinical wide popularization and application.

Summary of the invention

The object of the invention provides a kind of physiological requirement that promptly meets, and effectively controls defecation again, does not have repulsion with surrounding tissue, does not have extruding, does not influence blood fortune, does not cause the downright bad mechanicalness artificial anus who infects of intestinal wall.

This implanted artificial anus is made of control system and artificial anus pad two parts; The anus pad is made up of support and three liquid capsules; Support constitutes one with three long-armed column type frameworks by three tubules and two annulus, three tubule one ends seal and curve inwardly and form three pillars of support, fix by two annulus, with holes on the pillar, the other end stretch out form three long-armed, its effect promptly is the passage of anus pad liquid capsule and control system, has plasticity again, is mainly used in the fixing of whole device; Three liquid capsules are set with and are fixed on the stent strut, each liquid capsule by support long-armed, connect silica gel tube and link to each other with control system.

During implantation, after the anal orifice and rectal intestine lower end of rectal cancer patient is cut, artificial anus pad can be placed former anus position at the bottom of the basin, proximal rectum is left behind directly and the skin of anus stitching, make artificial anus pad place the internal rectum of leaving behind, utilize that three of anus pad support are long-armed to be securely fixed in the pelvis wall with it.Reservoir is placed on prevesical space behind the pubis, and micropump places in male's scrotum or women's the labium majus.Start micropump by remote controller, the liquid in the reservoir is injected in the anus pad liquid capsule, make the expansion of anus pad liquid capsule, mutual jam-packed, the volume size after three liquid capsules expand is suitable with enteric cavity, makes rectum lower end closure, plays the effect that stops the feces discharge.This moment, rectum was intrinsic pressure to remain on more than 18-24cmHg.Micropump starts sucking-off anus pad liquid CF body to reservoir during defecation, and the anus pad is flat to be contracted, open, and feces is discharged.

Use this implanted artificial anus, can effectively avoid the necrosis of intestinal tube burn into, perianal infection, pain, complication such as wound dehiscence.

Description of drawings

Fig. 1 is the sketch map of this implanted artificial anus support;

Fig. 2 is the sketch map of this implanted artificial anus anus pad;

Fig. 3 is the sagittal plane sketch map in this implanted artificial anus implant into body.

The specific embodiment

This implanted artificial anus is to be made of artificial anus pad and control system two parts; Artificial anus pad is made up of anus pad support and three liquid capsules; Support constitutes one with three long-armed column type frameworks by three titanium alloy tubules 1 and two metal rings 2, three tubule 1 one ends sealings, and curve inwardly, form three equilateral t shores of support, fixing by two beckets 2 welding, the other end stretch out form three long-armed, have hole 4 on the stent strut, three liquid capsules 3 are set with and are fixed on three pillars, and each liquid capsule 3 links to each other with control system by the extension arm of support.Control system is made up of micropump 6 and reservoir 5.Micropump 6 links to each other with reservoir 5 by silica gel tube one end, the other end three by support are long-armed to link to each other with three liquid capsules 3 of anus pad, when micropump 6 starts work, liquid in the reservoir 5 is pumped in the anus pad liquid capsule 3, closed jam-packed mutually makes it to expand, volume size after three liquid capsules 3 expand is suitable with enteric cavity, plays the effect that control feces is discharged.When needing defecation, start Micropump 6 liquid in the anus pad is drawn back reservoir 5, the anus pad is flat to be contracted, opens, and feces is discharged.

Claims

1, a kind of implanted artificial anus is made of control system and artificial anus pad two parts; It is characterized in that the anus pad is made up of support and three liquid capsules; Support constitutes one with three long-armed column type frameworks by three tubules and two annulus, three tubule one ends seal and curve inwardly and form three pillars of support, are fixed by two annulus, and are with holes on each pillar, be used for communicating with the liquid capsule, the other end stretch out form three long-armed; Three liquid capsules are set with on three pillars that are fixed on support, each liquid capsule by support long-armed, connect silica gel tube and link to each other with control system.