CN202961471U

CN202961471U - Urethral catheter capable of preventing urine from reflowing

Info

Publication number: CN202961471U
Application number: CN 201220592918
Authority: CN
Inventors: 程秀巧
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-12
Filing date: 2012-11-12
Publication date: 2013-06-05
Anticipated expiration: 2022-11-12

Abstract

The utility model relates to a urethral catheter, which comprises a first end, a second end, an external surface, an internal surface and a capsule section, wherein the first end is applicable to be inserted into the body of a patient; the second end is applicable to be connected to a fluid collecting reservoir in a releasable manner; the external surface and the internal surface are used for defining the first end and the second end; and the capsule section is used for defining the internal surface of a capsule and three one-way valves arranged inside the capsule section. Each one-way valve comprises at least two plates which are used for obtaining a force applied by separated fluid motion, so that the first end faces to a fluid channel of the second end and fluid is prevented from reflowing to the body of the patient.

Description

Prevent the catheter that urine refluxes

Technical field

This utility model relates to catheter, relates in particular to a kind of avoiding and causes microorganism to enter the catheter of human body because urine refluxes.

Background technology

At present catheter has been widely used in each hospital, and various catheter has different structures and design, and the purpose of general catheter is to make urinary incontinence or disabled collect urine.Always for a long time, catheter is generally to be made of not sharp conduit.Not sharp conduit extends from bladder in patient's bladder and discharge or drainage tube, and by urethra, when outside, the place of the patient in conduit comprises an inflatable air bag.Not sharp conduit provides passive urine drainage, and can in a position of exterior, clamp closed catheter.But not the shortcoming of sharp conduit is in relatively high frame-the urethra slip, can't with controlled discharge optionally and reduction patient's mobility or physical activity because of the interconnection of OD of mobile device of a drainage collection of constant needs.Therefore, be necessary to provide a kind of and prevent that the adrainage material stream gravity from newly inputting the catheter in the patient body.

Summary of the invention

The purpose of this utility model is: provide a kind of catheter not allow to flow adrainage material and reenter in the patient body.

The technical scheme that its technical problem that solves this utility model adopts is: comprise that first end is suitable for being inserted in patient's body, the second end is suitable for being releasably connected to a fluid set reservoir, limit both outer surface and an inner surface, a catheter is connected to outside body surfaces, the capsule that inner surface in one capsule part limits, three check valves arranging in the capsule section.Each in three check valves comprises two plates, and it obtains the power of separating due to the fluid motion that applies, thereby makes from the fluid passage of first end towards the second end, and prevent fluid reflux towards first end from described the second end conduit.

The beneficial effects of the utility model are: the catheter that this utility model provides can prevent effectively that urine from refluxing.

Description of drawings

Fig. 1 is the top plan view of catheter.

Fig. 2 is the cutaway view of the front end of urethral catheter valve.

The specific embodiment

In case the first end of urological catheters is connected to bladder, the mode of the hollow passage that urine begins to flow through extends to capsule section catheter urological catheters and passes through.The pod membrane section of catheter comprises that three unidirectional cone valves are that single flexibility or elastomeric material made, as latex rubber or silicon.Three check valves be positioned at catheter pod membrane section and comprise a valve floor.The floor of valve be the form of infundibulum and narrow down towards the catheter of the second end.Valve head made by two discerptible plate latex rubbers or silicone rubber, this is link together and point to the second end of urological catheters.When urine reaches in the first cone valve capsule section, due to the liquid flow of power and the liquid of weight, the front end of the first cone valve of opening allows urine to pass through opening.Equally, for the second time and cone valve for the third time be opened to allow urine to pass through the valve of the collecting bag in the catheter outside.Therefore, the urine of collecting at collecting bag can not reenter under the existence of human body, the cone valve of a kind of mode of the catheter assembly of the branch of capsule due to.

Fig. 1 illustrates the top plan view of discharging from bladder according to the urine that uses in the mobile device 101 of the catheter of an embodiment of the present disclosure.Catheter 101 comprises a main body, and it has an inner surface 110 and an outer surface 109.The outer surface 109 of catheter 101 is to be made by flexible material, as elastomeric material, makes as silicon or latex rubber, and the catheter of inner surface 110.

The main body 108 of catheter 101, catheter 101 extends to the second end 112 from first end 102.First end 102 be connected to patient's bladder and the second end 112 is connected to the collecting bag of collecting the urine of discharging.The tubular conduit of the plastics that use, the second end 112 of urological catheters is connected to collecting bag.

The first end 102 of catheter main body 108 comprises the end of a circle so that the catheter 101 that inserts enters patient's bladder.Inner surface 110 be formed in a narrow method in catheter main body 108, it allows the flow from body cavity, for example, bladder enters the hollow channel that the inner surface 110 of catheter 101 connects and finishes 111 to second ends 112 from described first.

Catheter 101 further comprises the body of gland vaginal contraception cover section 104 of at least one penis around male and woman vagina that connects in catheter 101.104 help of the vaginal contraception cover section of the crescent moon section 114 of the protuberance on the edge of viscosity that this process is completed part.The collecting bag of the hollow channel that passes through from patient's urine flow, and enter capsule section 106 at catheter 101.Pod membrane section 106 are inner surfacies 110 of the catheter 101 of capsule-type shaped part in dividing and to be positioned at the second end 112 adjacent.

Pod membrane section 106 comprises at least three check valves 107.Because three check valves 105 are to enter capsule section 106 results at the 3rd open check valve 105 by the power of two separable and flexible working of plasticss and the urine of weight, thereby make urine flow through valve.Equally, the valve of the power that urine causes and weight second and the 3rd 's check valve 105 is opened, and allows urine flow to collecting bag.In case the collecting bag that urine reaches, the urine of discharge reenters on patient's health, avoid being configured in a kind of like this mode as Wa Laisi, and be unidirectional by urine by pod membrane section 106.Catheter 101 further comprises a retainer 105, and this is one and is positioned at capsule branch 106, near the tubercle structure catheter 101.Retainer 105 connects vaginal contraception cover section 104, catheter 101, and prevent that vaginal contraception from overlapping branch from the disengaging of catheter 101.Fig. 1 also shows at conventional catheter 101, and catheter 101 is in the balloon expansion chamber of first end 102.

The catheter assembly of the valve 202 shown in Fig. 2 and valve floor 201 pod membrane branches 106 is present in the cutaway view according to the front end of an embodiment of the present disclosure.Three unidirectional cone valves 107 are positioned at capsula interna section 106 and comprise valve floor 201, and this is the first end 102 at the conduit 101 of the form of infundibulum and sensing.Valve head 202 comprise two plates, be to stick together, dwindle towards the second end 112, catheter 101.When urine enters in capsule branch 106, two plates that the direction of power and urine flow is separated, this is that valve top 202 allows urines by three unidirectional cone valves 107.The material that the material of three unidirectional cone valves 107 is identical consists of, and it is to be latex rubber or silicon catheter 101 in construction.Three unidirectional cone valves 107 be connected to the inner surface 110 of urological catheters and three check valves 107 be arranged with each valve inner capsule section 106 between the mode of identical distance.The part of flow infundibulum of 201 from the valve floor, and begin to enter into valve top 202, and open valve.The thickness of minimizing three check valves 107 at 201 valve tip 202 from the valve floor, thus make the valve floor 201 of valve thick and thinner at valve tip 202.This can prevent that urine is back to human body.

Claims

1. OnePlant the catheter that prevents that urine from refluxing, comprising: first end is suitable for being inserted in patient's body; The second end is suitable for being releasably connected to a fluid set reservoir; Both outer surfaces of main part limitation and inner surface; Capsule in the inner surface of capsule paragraph qualification; The pod membrane section of the internal configurations of three check valves, it is characterized in that: described three check valves comprise that at least two plates obtain the passage of the fluid that separates due to the power of the fluid motion that applies, thereby make from described first end towards described the second end, and stop the first end of fluid from the second end to return-flow catheter.

2. according to claim 1 catheter is characterized in that: the central chamber of the pod membrane catheter that described inner surface limits, the collecting tank of the fluid that flows from bladder by this urine.

3. according to claim 1 catheter is characterized in that: described main part and three check valves are the plastic materials by flexibility, as latex or silicon.

4. according to claim 1 catheter, it is characterized in that: the pod membrane catheter of described three check valves is firsts of the cone valve of taper, makes the combination of the inner surface of inner catheter; Described three check valves comprise: the valve floor conduit of an infundibulum extends towards first end; Extend towards the second end of conduit with a valve tip; Described valve tip comprises two separable attached plates.

5. according to claim 1 catheter is characterized in that: the pod membrane catheter at described two plate valve tips moves away from each other, due to the power that applies, thereby open three check valves to set indication urine flow by urine from bladder flowing water storehouse; Described two coherent elasticity of plate and the fluid flowing path of sealing in the material that produces, thus prevent that urine from backflowing