CN2086610U - Double-bag prostatic urethreurynter - Google Patents

Abstract

The utility model relates to a double-bag prostatic urethral expanding device, comprising a probe 1, a fixed air bag 2, an expanding air bag 3, a catheter 4, etc. A passageway is provided to charging air and discharging air for the air bag, the air bag 3 can treat the prostatic obstruction and expanding urethra and is positioned by the air bag 2 as well as the magnetic sucking principle anus test, and the air bag can not need to use X-radial to examine and be positioned. The air bag is made of latex tunica clip nylon net liners, is tolerant of high pressure and has good shrinking performance. The probe and the catheter are both made of soft and tenuous materials, and when operating, the urethra can not be damaged. A urine guiding pipeline can be provided and can optionally control the leaving and expanding time, and the utility model is an ideal device for treating urethral block caused by prostatic hypertrophy by the mechanical expanding principle at present.

Description

Double-bag prostatic urethreurynter

This utility model belongs to medical apparatus and instruments, is the extension fixture of the urethral obstruction due to the treatment human body prostate propagation hypertrophy.

Urethral obstruction because of prostatic hyperplasia causes adopts operative treatments such as prostate excision usually, this to patient particularly the gerontal patient exist certain painful and dangerous, and also people's will to the greatest extent entirely of curative effect.Chinese scholars takes much count of studying non-operative treatment in recent years, for example Germany patent DE3034453(1982,03.05 openly), " the prostate-urethra conduit " that provides, its catheter front end has air bag, when urethral catheterization, make catheter location, but do not have the dilation therapy function by the air bag bladder outlet that reclines.Routine again Chinese patent CN88219869.6(1989.05.31 bulletin) " prostate-urethra dilator ", it has the air bag that can make the expansion of the prostate-urethra section of blocking by inflation, because its metal urethral probe is harder and can not be crooked, abrade urethra easily; Withstand voltage air bag recoverability is poor slightly, and when exitting after inflating, air bag often forms folded, and it is coarse that the surface becomes, and when removing dilator outside the treatment back, easily causes the apparatus damage; And judge that whether the expansion capsule is in the tram, need in the dilation therapy process, after reasons such as the variation that tightly relaxes owing to urethra muscle cause the expanded balloon transposition, reorientate cumbersome by X one ray examination especially.

At above-mentioned the deficiencies in the prior art, develop a kind of front end fixation balloon location that both had, have expanded balloon again to blocking urethral dilatation, and air bag adopting telescopicing performance and withstand voltage properties two capsule extension fixtures of making of material preferably, is technical assignment of the present utility model.

Two capsule formula prostate-urethra extension fixtures mainly contain formations such as probe, expanded balloon and conduit.With the main distinction of prior art be: be provided with fixation balloon at the expanded balloon front end, the two ends of fixation balloon are packed in probe root and breather front portion respectively, the two ends of expanded balloon are packed in respectively on breather front portion and the metallic sheath, breather and import are arranged, fixation balloon is communicated with the external world, annular space and import between pipe arranged, expanded balloon is communicated with the external world, and air bag all adopts two-layer latex film folder nylon mesh liner to make; Probe is provided with the urethral catheterization passage, and links to each other with catheter, and the catheter outlet is stretched out outside the conduit; Metallic sheath is made by magnetic material (routine ferrum or ferroalloy), and probe and conduit are made with rubber or plastics; Gas feed place in fixation balloon and expanded balloon is connected with one-way cock and unidirectional air inlet syringe.

Positive effect of the present utility model is: the correct operating position of expanded balloon can be by recline bladder outlet location of fixation balloon, also can utilize the finger-stall finger ring that is magnetic, and determines by the anus inspection; It is better that air bag is replied shrinkage, and probe and conduit appearance all softness is very thin, do not damage urethra during operation, can repeatedly use; Have the urethral catheterization structure, be beneficial to long period indwelling expansion urethra.

Below in conjunction with accompanying drawing in detail embodiment is described in detail.

Fig. 1 is a cutaway view of the present utility model.

The two capsule extension fixtures of prostate-urethra mainly are made of probe 1, fixation balloon 2, expanded balloon 3, conduit 4 etc.The two ends of fixation balloon 2 are packed in the front portion of probe 1 root and breather 8 respectively, for strengthen popping one's head in 1 with the bonding strength of conduit 4, the front portion of breather 8 can connect one section with holes 5 connection pipe 6(and for example make with metal tube).The two ends of expanded balloon 3 are packed in respectively on the front portion and metallic sheath 7 of breather 8, metallic sheath 7 links to each other with conduit 4, and breather 8 pierces in the conduit 4, and has annular space 9 between managing 4,8, in conduit 4 tail seal, the import 10 of breather 8 is stretched out outside the conduit 4 by bonding filler 11.By import 10, breather 8, (or connection pipe 6 of with holes 5) makes fixation balloon 2 communicate with the external world.By import 12, annular space 9, expanded balloon 3 is communicated with the external world.

Before using this device, determine earlier the length of patient's prostate-urethra hypertrophy portion with cystoscope or X-ray or B ultrasonic, select the length of suitable expanded balloon 3 major diameters for use by this, for example give being shaped on that air bag 3 major diameters respectively are 35,40, the series specification product of 45mm according to the state human body type.During use, introducing part appearance coating lubricating oil to this device, the tube wall because air bag 2,3 all reclines when contraction state, the extension fixture external diameter only is about 6mm, can more easily inject the human body urethra, and make probe 1 and fixation balloon 2 stretch into intravesical, then from import 10 injection pressure air, make air bag 2 expand into spheroid about the about 25mm of diameter.Then outer pull catheter 4 makes recline bladder outlet location of expansible air bag 2.After the airtight import 10, can expanded balloon 3 columns that be in urethra hypertrophy portion be expanded, thereby the urethra that blocks have obtained dilation therapy (signal when dotted portion is air bag 2,3 expansions among the figure) from another import 12 injection pressure air.Because air bag 2,3 adopts two-layer latex film 13 folder nylon mesh liners 14 to make, has the 0.4MPa load performance, can satisfy 0.25-0.3MPa pressure needs required when treating, and latex film 13 and nylon mesh liner 14 all have good contracting property, after import 10,12 venting, air bag 2,3 can retract into original state rapidly, and can be repeatedly used.This device exposed parts all adopts moderate rubber of hardness or plastics to make, and smooth surface, and 1 the profile of popping one's head in again is front fine and rear thick slightly arc, so easy damaged urethra not during operation.

In order to check that expanded balloon 3 has not transposition in the therapeutic process.Except the bladder outlet location that reclines with fixation balloon 2, also can adopt following method: expanded balloon 3 is carried out charging and discharging fast of a small amount of gas, cause the rapid expansion or the contraction of air bag 3, cooperate doctor's anus to refer to touch, thereby perception or the correct operating position of proofreading and correct air bag 3 can be exempted and be used X one line location.

Fig. 2 is the scheme that the utlity model has indwelling catheter.Probe 1 nearly root place is provided with urethral catheterization passage 15 among the figure, and link to each other with catheter 16, the outlet 17 of catheter 16 is stretched out outside the conduit 4, and intravesical pool is urinated can flow through passage 15, catheter 16 and export 17 and excreted, and keeps somewhere dilation therapy thereby can carry out the long period to patient.

Metallic sheath 7 can adopt magnetic material (routine ferrum or ferroalloy) to make, behind magnetic finger ring on doctor's finger-stall, carry out the anus inspection, because the magnetic finger ring can be attracted each other with magnetic metallic sheath 7, with referring to sense, if metallic sheath 7 is in edge within the external sphincter of urethra, then this device is on correct operating position, thereby has further simplified the localization examination in the therapeutic process.

Fig. 3 is a kind of one-way valve structures.

Be with rubber tube 19 on the needle point of transformation of the way medical needle 18, after injecting import 10,12, have the non-return valve function of similar bicycle valve core.

Fig. 5 is the syringe construction with unidirectional air inlet function.

Utilize conventional plastic injector for temporary use, advance on the circle 20 at its rubber and to establish a check valve sheet 21, and on push rod 22, bore an aperture 23 that communicates with the external world, make in the syringe use, when push rod 22 moved to right, outside air can enter syringe inside through aperture 23, check valve sheet 21; When push rod 22 moved to left, valve block 21 was closed, and air is extruded from syringe outlet 24.When outlet 24 is connected with the afterbody of medical needle 18 shown in Figure 3, and after the reeve import 10,12, can speaks in a low voice to gas and 2,3 calm the anger continuously.

Claims (4)

1, two capsule formula prostate-urethra extension fixtures mainly are made of probe 1, expanded balloon 3 and conduit 4 etc., it is characterized in that being provided with fixation balloon 2 at expanded balloon 3 front ends, air bag 2 two ends are packed in the front portion of probe 1 root and breather 8 respectively, air bag 3 two ends are packed in respectively on the front portion and metallic sheath 7 of trachea 8, have and make air bag 2 and extraneous import 10 and the breather 8 that communicates, have and make air bag 3 and extraneous import 12 and the annular space 9 that communicates, air bag 2,3 adopt two-layer latex film 13 folder nylon mesh liners 14 to make.

2, extension fixture according to claim 1, it is characterized in that popping one's head in 1 is provided with urethral catheterization passage 15, and the catheter 16 that links to each other with passage 15 is arranged, and outlet 17 is stretched out outside the conduit 4.

3, according to claim 1 and 2 described extension fixtures, it is characterized in that metallic sheath 7 made by the magnetic material, probe 1 and conduit 4 usefulness rubber or plastics are made.

4, extension fixture according to claim 3, it is characterized in that import 10,12 places connect check valve that transformation of the way medical needle 18 and rubber tube 19 constitute and are provided with check valve sheet 21 on the circle 20 by advancing at rubber, and are provided with the unidirectional air inlet syringe that aperture 23 constitutes on push rod 22.

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