CN201257219Y

CN201257219Y - Novel multi-cavity high-pressure water-sac posterior urethral expand-crack duct

Info

Publication number: CN201257219Y
Application number: CNU200820131611XU
Authority: CN
Inventors: 姜大磊; 姜汉胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-22
Filing date: 2008-07-22
Publication date: 2009-06-17
Anticipated expiration: 2018-07-22

Abstract

The utility model relates to a novel multi-chamber high-pressure water bag posterior urethral dilation catheter which relates to a medical instrument and comprises a multi-chamber catheter 1, a composite high-pressure water bag 6 with an inner bag and an outer bag, wherein the multi-chamber catheter 1 is provided with a urethral catheter chamber 2, a flushing tube chamber 5, water charging tube chambers 3 and 4 and a positioning tube chamber 16, and an inner high-pressure water bag 8 is arranged on the back section in an outer high-pressure water bag 7. The catheter enables the membrane part, the gland part, the envelop and the neck part of the posterior urethra to be dilated, corrects and restores the urethra which is pressurized to be bent and deformed and has a narrowed inner chamber and the neck part with an uplifted process and a changed shape and position and enables the posterior urethra to be in a low-pressure and low-resistance unblocked state. Because the catheter is provided with an inner bag and an outer bag, after pressurization, the surface stiffness is good and the hardness and the strength are high. The utility model has convenient surgical operation, high cure rate and good treatment effect, is suitable for the patients with slight, moderate and severe prostatic hypertrophy, and is the ideal instrument using the micro-wound treatment method for effectively treating the prostatic hypertrophy without cutting the prostate off.

Description

Novel multi-cavity high-pressure water-bag posterior urethral expanding catheter

Technical field:

This utility model relates to medical apparatus and instruments, is meant that urethra expands behind a kind of high pressure water pocket that is used for the treatment of hyperplasia of prostate to split medical apparatus and instruments.

Background technology:

Hyperplasia of prostate is the multiple disease of elderly men, is tormenting the latter half of one's life of elderly men.The way that is used for the treatment of hyperplasia of prostate at present has: slight Drug therapy; Weight person's open surgery excision, or per urethra TURP, gasification; Also have physics heating therapy such as microwave, radio frequency, laser, focus ultrasonic, way is operation, TURP, gasification more completely, but to the aged at weak and sickly advanced age, not anti-operation, inconvenience is implemented, and operation bring painful many, complication is many, have a big risk, other physics thermotherapy treatment weak effect, a general adaptation slightly increases the survivor.Over one hundred year historical prostate expansion interventional therapy arranged, be based on and do not excise body of gland and adopt crack valve-type or gasbag-type to carry out urethral dilatation, but because of the back urethral obstruction mechanism that prostatic hyperplasia caused is lacked understanding clearly, technical progress is very slow, practical external sacculus dilating catheter and domestic metal tube hidden balloon dilator just appearred until the 1980s, and other air bag, the water balloon dilator conduit, but all there is open defect, mainly be that the membranous part of urethra is a control urine " valve " behind the traditional theory because of being subjected to, it is the constraint of forbidden zone, air bag is short and small, the long 4cm that is no more than, diameter is 2.5cm only, only is confined to the expansion of hypertrophy gland division is only adapted to patients with mild, because of slight expansion easily bounces back, and do not expand membranous part again, so therapeutic effect is poor, very fast easy recurrence, it is invalid that above-mentioned expansion is expanded severe hypertrophy person, classifies as and prohibit the indication person.

Summary of the invention:

The goal of the invention of this utility model is, expand in whole process and to split the back urethra, thoroughly get rid of and block and form on the understanding basis of new row, control urine mechanism, prior art is given bigger improvement, a kind of novel multi-cavity high-pressure water-bag posterior urethral expanding catheter that is used for the treatment of hyperplasia of prostate is provided, implement the back membranous part of urethra, gland portion and peplos, neck finish portion expansion are split and put in place by the treatment requirement, reach the remarkable result of interventional minimally-invasive treatment hyperplasia of prostate.

The foregoing invention purpose is to be achieved by following technical measures, novel multi-cavity high-pressure water-bag posterior urethral expanding catheter, it has the urethral catheterization lumen of comprising 2, water-

filling tube chamber

3 and 4 and the flushing tube chamber 5 software multi-cavity catheter 1, with its head, tail two ends are fixed in the composited high pressure water capsule 6 on the multi-cavity catheter outer wall, described composited high pressure water capsule 6 is made of outer high pressure water pocket 7 and the 8 pairs of capsules of inner high voltage water pocket that are wrapped in it, in, its shape was the curved seemingly cylinders of two ends after outer high pressure water pocket water-filling expanded, the two swell diameter equates, perhaps, outer high pressure water pocket 7 have the head end 7 that expands '; Outer high pressure water pocket head end 7 ' in be provided with gas injection location capsule 13, be provided with location capsule gas injection tube chamber 16 in the multi-cavity catheter 1, and in the capsule 13 of location, establish opening 14; Outside multi-cavity catheter 1 wall, be provided with near high pressure water pocket 6 tail end places and refer to touch the prominent ring 15 in location.

Outer high pressure water pocket 7 has as purgation length, places outer its tail end of high pressure water pocket that puts in place to stride across the membranous part of urethra and part bulb after the anatomical position, and its head end probes into bladder through bladder neck, its head end expand portion 7 ' and gas injection location capsule 13 be in intravesical; The tail end of inner high voltage water pocket 8 its tail ends and outer high pressure water pocket 7 is approaching, and its head end is positioned at gas injection and locatees after the capsule 13, is butted on the anatomical position bladder neck.

The advantage of this novel multi-cavity high-pressure water-bag posterior urethral expanding catheter is, according to the different Signs of patient, be designed to the serial dilator of different length and diameter, make each patient all can make membranous part, gland portion and peplos, cervical region is able to effectively expand to split put in place, reach the membranous part expansion is split, body of gland peplos splits, interlobar fissure is opened body of gland, the eck expansion, the urethra that bend by pressure distortion inner chamber is narrowed down, and go up and prominently to raise neck of bladder oral area that morpheme changes and corrected and recover, make the back urethra be in the unobstructed state of low pressure low-resistance, outgrowth body of gland splits the nervus vasculairs damage that causes because of expansion, can make body of gland atrophy gradually, it is no longer recurred, make glandular hyperplasia be able to treat more completely and do not have urinary incontinence and take place.This conduit high pressure water pocket is an inside and outside pair of capsule structure, its case hardness, deflection and pliability meet back urethra physiological feature and treatment requirement, and be easy and simple to handle, the cure rate height, can reach the curative effect that be equal to electrotomy nearly long term, be adapted to light, in, all patients of severe.

Invention of the present utility model, treatment mechanism can be sketched and be: the caused frequent micturition of hyperplasia of prostate, urine thin, urine is waited for, symptoms such as urine pool stream all cause bladder because of prostatic hyperplasia, due to back urethra pressure rule variation is unbalance, the not outgrowth normal person of body of gland, during anuria, by bladder, eck, the body of gland urethra is to membranous part, thereby its pressure curve is urethra presses high bladder to force down taboo urine, and as urine meaning when urinating, detrusor of bladder shrinks, and the eck urethra, the smooth muscle of gland portion and membranous part and sphincter then diastole are lax, and its pressure curve is bladder and presses high urethra to force down and urinate.When prostatic hyperplasia, because the particularly hypertrophy of substrate and the formation of pseudocapsule of body of gland, the binding force of true and false peplos strengthens, urethra must be oppressed and twist to the body of gland that expands, simultaneously, because of body of gland polyploid hypertrophy is expanded, its tip must form extruding and stretching to membranous part, causes the membranous urethra pressure anomaly to increase, be high resistant high pressure systolic and diastolic function imbalance state, and when middle period during hypertrophy, prominent in bladder neck will be elevated, deformation, the angle of urinating changes, and has increased neck finish portion urine and has pressed, so form membranous part, gland portion, neck finish portion three-hypers press belt, form the back urethral obstruction, ANOMALOUS VARIATIONS has taken place in the pressure curve of urinating, and back urethra pressure everywhere generally raises.Adding the age again increases, the neuromodulation hypofunction, and the aging function of detrusor is lost compensatory, makes the bladder hypotony of urinating, and causes source low pressure, and back urethra high pressure makes the difficulty of being obstructed of urinating.By above-mentioned explanation, must all fully expand membranous part, gland portion and peplos, the full back of cervical region urethra and split, remove the three-hypers press belt, realize back urethra low pressure low resistive state, form new pressure balance row, control urine mechanism with source bladder low pressure, be only not all right body of gland excision and can treat the basic way of hyperplasia of prostate.Also facts have proved simultaneously, membranous part " forbidden zone " theory has mistaken ideas greatly, and urinary continence is that the master comprises that back urethra integral body is finished jointly more than the membranous part by membranous part, and back self-repair function is in addition split in the membranous part expansion, this art can be grasped and accomplish fully and both expand cracking except that blocking not incontinence again.So say and adopt urethra dilator behind the high pressure water pocket, be the unique correct means that realize above-mentioned therapeutic goal.

Description of drawings:

Accompanying drawing 1 this utility model first embodiment organigram

Accompanying drawing 2 this utility model second embodiment organigram

Organigram when its capsula interna 8 walls of accompanying drawing 3 this utility model first embodiment have scrobicular ring

Organigram when its capsula interna 8 of accompanying drawing 4 this utility model first embodiment is in the external capsule stage casing

Organigram when its capsula interna 8 of accompanying drawing 5 this utility model first embodiment is in the external capsule rear

Another embodiment organigram of accompanying drawing 6 this utility model

Accompanying drawing 7 this utility model first embodiment A-A cutaway view

The specific embodiment:

Accompanying drawing 1 this utility model first embodiment organigram has provided a kind of specific embodiment of this novel multi-cavity high-pressure water-bag posterior urethral expanding catheter, it has software 5 cavities conduit pipes 1 that comprise urethral catheterization lumen 2, water-

filling tube chamber

3 and 4, flushing tube chamber 5 and gas injection tube chamber 16, see shown in the accompanying drawing 7, be fixed in composited high pressure water capsule 6 on the multi-cavity catheter outer wall with its initial and end two ends, it is made of outer high pressure water pocket 7 and the 8 pairs of capsules of inner high voltage water pocket that are wrapped in it, its shape was the curved seemingly cylinders of two ends after inside and outside high pressure water pocket water-filling expanded, and the two swell diameter equates; Outer high pressure water pocket 7 also can have the head end 7 that expands ', because of the head end that expands is beneficial to the traction hemostasis, in first embodiment, increased hemostatic function, so this first embodiment is the most basic, topmost embodiment; Second embodiment high pressure water pocket 7 outside first embodiment only is do not have the head end 7 that expands ', still be a kind of common type.Opening 10 is established in outer high pressure water pocket charging pipe chamber 4 in outer high pressure water pocket, inner high voltage water pocket water-filling tube chamber 3 is established opening 9 in the inner high voltage water pocket, and urethral catheterization lumen 2 and flushing tube chamber 5 are established opening 12 and 11 respectively at two sides at distance conduit head end 1cm place.Be provided with gas injection location capsule 13 in outer high pressure water pocket 7 head ends, be provided with location capsule gas injection tube chamber 16 in the multi-cavity catheter 1, in the capsule 13 of location, establish opening 14.Urethral catheterization lumen 2 is in the tail end of conduit opening, and water-

filling tube chamber

3 and 4, flushing tube chamber 5 and gas injection tube chamber 16 are drawn apart from tail end of conduit 5cm place, respectively are provided with interface.Multi-cavity catheter adopts nontoxic high-quality plastics to make, and is about 40cm.This utility model outside multi-cavity catheter 1 wall, be provided with near high pressure water pocket 6 tail end places and refer to touch the prominent ring 15 in location, touch the location to make things convenient for the art middle finger.

Accompanying drawing 3 has the organigram of scrobicular ring 18 for inner high voltage water pocket 8 its walls in this utility model first embodiment, and this scrobicular ring is in the membranous part of urethra after the anatomical position, and effective expansion that it neither influences mould portion is split, and is beneficial to location in the art again, conduit is stable.

This utility model embodiment shown in above-mentioned accompanying drawing 1, accompanying drawing 2, the accompanying drawing 3, its outer high pressure water pocket 7 has as purgation length: place outer its tail end of high pressure water pocket that puts in place to stride across the anatomical position membranous part of urethra and part bulb afterwards, its head end probes into bladder through bladder neck, its head end expand portion 7 ' and gas injection location capsule 13 be in intravesical: inner high voltage water pocket 8 its tail ends are approaching with the tail end of outer high pressure water pocket 7, and its head end is positioned at gas injection and locatees after the capsule 13, is butted on the anatomical position bladder neck.Outer high pressure water pocket length is 7-12cm, and inner high voltage water pocket length is 3-8cm, and inside and outside its swell diameter of high pressure water pocket is 2-4.4cm.

Organigram when organigram when accompanying drawing 4 is in the external capsule stage casing for capsula interna, accompanying drawing 5 are in the external capsule rear for capsula interna, these two kinds of modes all belong to the version of first embodiment, all are that the inner high voltage water pocket is shortened, and place different parts.Inner high voltage water pocket 8 its tail ends are in the preceding body of gland place of anatomical position membranous part in the accompanying drawing 4, and its head end is butted on the anatomical position bladder neck.Inner high voltage water pocket 8 its tail ends are approaching with the tail end of outer high pressure water pocket 7 in the accompanying drawing 5, and its head end is in the preceding body of gland place of anatomical position membranous part.Above-mentioned two kinds of versions are the situation that adapts to the different state of an illness, different patient and the form of implementation of particular design.

Accompanying drawing 6 is another embodiment organigram of this utility model, the characteristics of this embodiment are that high pressure water pocket 6 integral body shorten, the tail end of the tail end of outer high pressure water pocket 7 and approaching with it inner high voltage water pocket 8 only strides across the membranous part of urethra after the anatomical position, do not affact the part bulb, mainly be applicable to the little and few person of the big residual urine amount of body of gland of glandular hyperplasia.Long 7-the 11cm of its outer high pressure water pocket, the long 3-7cm of inner high voltage water pocket, inside and outside its swell diameter of high pressure water pocket is 2-4.4cm.

The high pressure water pocket 6 of this utility model adopts withstand voltage elastic composite to make, and inside and outside high pressure water pocket all can withstand voltage 0.5Mpa, and executing art pressure is 0.3Mpa.Inside and outside high pressure water pocket in its length and diameter range, from short to long, by carefully to rough segmentation be kind of series specification surplus in the of 20, to adapt to the patient of different Signs, the patient's condition.

This utility model on the dilator wall, external capsule head and the tail two end places are provided with visual sign 17 under the X line (ordinary circumstance not by the X line under execute art).This conduit is furnished with the art of executing adnexa in addition: show pressure table, flexible metal inner core, divulsor, connection tube, tee T.

Execute the art rule of operation: 1, check before patient's art, according to the patient's condition, physiology Signs choosing pipe; 2, prepare before the conventional art; 3, put pipe, heuristic dilating urethra with divulsor earlier.With the urethral catheterization chamber (doing the guiding insertion uses) that the metal inner core inserts the multi-cavity dilator, the dilator outer wall is coated with lubricant and inserts urethra; 4, location pressurising (with the explanation of first embodiment), general employing water filling refers to touch positioning mode, sometimes cooperate and adopt capsule location, gas injection location, left hand is held conduit, and right hand thumb middle finger touches outside anus outside the prominent ring in location and leads 1-2.5cm, and first finger inserts in the anal orifice and rectal intestine, finger tip is mediated in the anal canal inner edge, to the capsula interna low pressure water injection, its capsule afterbody coincides with finger tip kneading place anal canal inner edge earlier, and expression capsule tail end strides across membranous part and part bulb in the urethra.Then give external capsule water filling pressurising,, send in exploratory if sliding sense in having, illustrate that the external capsule cervical region that puts in place expands out to 0.3Mpa.Afterwards capsula interna is discharged water, external capsule is kept 0.1Mpa as hemostasis, closes inside and outside capsule water filling interface; 5, A/C is extracted the metal inner core, takes over urethral catheterization; 6, postoperative relevant treatment.

Claims

1, novel multi-cavity high-pressure water-bag posterior urethral expanding catheter, it has the urethral catheterization lumen of comprising (2), the software multi-cavity catheter (1) of water-filling tube chamber (3) and (4) and flushing tube chamber (5), with its head, tail two ends are fixed in the composited high pressure water capsule (6) on the multi-cavity catheter outer wall, it is characterized in that, described composited high pressure water capsule (6) is by outer high pressure water pocket (7) and be wrapped in the two capsules formations of its interior inner high voltage water pocket (8), in, its shape was the curved seemingly cylinders of two ends after outer high pressure water pocket water-filling expanded, the two swell diameter equates, perhaps, outer high pressure water pocket (7) has the head end (7 ') that expands; Be provided with gas injection location capsule (13) in outer high pressure water pocket (7) head end, be provided with location capsule gas injection tube chamber (16) in the multi-cavity catheter (1), and in location capsule (13), establish opening (14): outside multi-cavity catheter (1) wall, be provided with near high pressure water pocket (6) tail end place and refer to touch the prominent ring in location (15).

According to the described novel multi-cavity high-pressure water-bag posterior urethral expanding catheter of claim 1, it is characterized in that 2, its wall of described inner high voltage water pocket (8) has scrobicular ring (18), be in the anatomical position membranous part of urethra afterwards.

3, according to claim 1 or 2 described novel multi-cavity high-pressure water-bag posterior urethral expanding catheters, it is characterized in that, outer high pressure water pocket (7) has as purgation length, place outer its tail end of high pressure water pocket that puts in place to stride across the anatomical position membranous part of urethra and part bulb afterwards, its head end probes into bladder through bladder neck, and its head end expands portion (7 ') and gas injection location capsule (13) and is in intravesical; Its tail end of inner high voltage water pocket (8) is approaching with the tail end of outer high pressure water pocket (7), and its head end is butted on the anatomical position bladder neck.

According to the described novel multi-cavity high-pressure water-bag posterior urethral expanding catheter of claim 1, it is characterized in that 4, its tail end of described inner high voltage water pocket (8) is in the preceding body of gland place of anatomical position membranous part, its head end is butted on the anatomical position bladder neck.

According to the described novel multi-cavity high-pressure water-bag posterior urethral expanding catheter of claim 1, it is characterized in that 5, its tail end of inner high voltage water pocket (8) is approaching with the tail end of outer high pressure water pocket (7), its head end is in the preceding body of gland place of anatomical position membranous part.

6, according to the described novel multi-cavity high-pressure water-bag posterior urethral expanding catheter of claim 1, it is characterized in that, the long 3-8cm of inner high voltage water pocket, the long 7-12cm of outer high pressure water pocket, inside and outside its swell diameter of high pressure water pocket is 2-4.4cm.

According to the described novel multi-cavity high-pressure water-bag posterior urethral expanding catheter of claim 1, it is characterized in that 7, the tail end of the tail end of outer high pressure water pocket (7) and approaching with it inner high voltage water pocket (8) only strides across the membranous part of urethra after the anatomical position.

8, according to the described novel multi-cavity high-pressure water-bag posterior urethral expanding catheter of claim 7, it is characterized in that, the long 3-7cm of inner high voltage water pocket, the long 7-11cm of outer high pressure water pocket, inside and outside its swell diameter of high pressure water pocket is 2-4.4cm.