CN220360576U - Urethral catheterization device - Google Patents

Abstract

The application discloses a urethral catheterization device, including catheter, urine collection container and connecting catheter and urine collection container's connecting line, the connecting line includes first pipeline and second pipeline, be provided with automatic control drain between first pipeline and the second pipeline, the urethral catheterization device of the utility model sets up automatic control drain on the connecting line between catheter and the urine storage bag, control the urine discharge in the bladder through automatic control drain, urine discharge is correlated with the intravesical pressure, make the urethral catheterization device automatic urination according to bladder urine pressure, with the user's urination physiology is correlated, avoid the adverse effect that artificial control led to the fact the bladder.

Description

Urethral catheterization device

Technical Field

The utility model belongs to the technical field of medical equipment, and particularly relates to a urethral catheterization device.

Background

Catheterization is a method for inserting a urinary catheter into a urinary bladder from the urethra to urinate, and is clinically conventional, and patients with urinary diseases and acute urinary retention often need catheterization, and sometimes patients with non-urinary diseases before and after large-scale operation also need catheterization.

At present, the methods of catheterization mainly comprise continuous catheterization (indwelling catheter), intermittent catheterization (indwelling catheter) and intermittent catheterization (non-indwelling catheter). The continuous urinary catheterization (indwelling catheter) is to keep the catheter in the patient body all the time, continuously guide urine out of the bladder, and periodically replace the catheter or pull out the catheter until the illness state is permitted; the difference between intermittent catheterization (indwelling catheter) and continuous catheterization (indwelling catheter) is that the catheterization pipeline switch is manually controlled to catheterize at intervals; intermittent catheterization (non-indwelling catheter) is to insert the catheter into the bladder at intervals, catheterize once, and pull out the catheter after the bladder is emptied.

When the urine is continuously catheterized, urine in the bladder is discharged from the body at any time, and the bladder is always in an empty state. At this time, the urinary bladder may curl together, and if the time is too long, the urinary bladder may be obviously contractured, urine may not be stored, so that the patient may urinate frequently, and it is difficult to reserve the urinary catheter again or replace the fistula. At the same time, the normal periodic urinary physiological phenomenon of bladder filling and emptying is disturbed, and thus, the nervous system disorder of urinary intention is caused. During a period of time after the patient removes the urinary catheter, the phenomena such as urinary failure, urinary incontinence and the like often occur due to the disorder of the urinary nervous system. Thus, it is necessary to urinate once at intervals to maintain the bladder volume, avoiding bladder contractures and urinary nervous system disorders. However, intermittent catheterization is performed by manually controlling the pipeline switch of the catheterization system, so that the problems of contracture of the bladder and disorder of the urinary nervous system can be solved, but if a patient is inconvenient to operate the urination system or is unaided, urine leakage or bladder damage can occur.

The current urethral catheterization device is generally composed of a urinary catheter and a urine bag, one end of the urinary catheter is inserted into the urinary bladder through the urethra, the other end of the urinary catheter is connected with the urine bag (or a urine bottle) through a connecting pipeline, and a buckle is arranged on the connecting pipeline to clamp the connecting pipeline so as to control the opening of the urethral catheterization device and regulate and control the flow of urine. The clamping buckles are provided with clamping gaps with different widths, when the connecting pipeline is positioned at the large gap side of the clamping gaps, the connecting pipeline is smooth and free from deformation, and moves from the large gap side to the small gap side, the connecting pipeline deforms until the inner wall is attached, and the connecting pipeline is closed. The switch of the urethral catheterization device is regulated by adopting the buckle, the control is needed by people, the connection with urination physiology of a user cannot be established, and urination overfrequency or too little can have adverse effect on the bladder to affect the bladder function.

Disclosure of Invention

The utility model aims to solve the problem that the normal periodic urinary physiological phenomenon of bladder filling and emptying cannot be automatically realized in the prior art. The utility model provides a urethral catheterization device, which can be physiologically associated with urination of a user, so that the urethral catheterization is as normal physiological urination, and adverse effects on the bladder caused by artificial control are avoided.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

the urine guiding device comprises a urine guiding tube, a urine collecting container and a connecting pipeline for connecting the urine guiding tube and the urine collecting container, wherein the connecting pipeline comprises a first pipeline and a second pipeline, and an automatic control liquid draining device is arranged between the first pipeline and the second pipeline; the automatic control liquid discharging device is respectively provided with a liquid inlet, an air inlet A, a liquid outlet, an inner cavity A, an inner cavity B and an energy storage and pressure accumulation mechanism, wherein the liquid inlet is communicated with the inner cavity A and is connected with the catheter through a first pipeline, the inner cavity A is communicated with the outside atmosphere in a one-way manner through the air inlet A, the liquid outlet is communicated with the inner cavity B and is connected with a urine collection container through a second pipeline, the inner cavity A and the inner cavity B are communicated through a liquid channel, the energy storage and pressure accumulation mechanism is arranged between the inner cavity A and the inner cavity B, and the energy storage and pressure accumulation mechanism controls the opening or closing of the liquid channel.

As a preferred mode, the inner cavity a is communicated with the external atmosphere in one way through an air inlet a provided with a one-way valve a.

As a preferred mode, the second pipeline is communicated with the external atmosphere in a unidirectional way through the air inlet B.

As a preferred mode, energy storage pressure accumulating mechanism includes elastic sealing plug and regulating part, and the up end of elastic sealing plug is used for shutoff liquid passageway, and the lower extreme is connected with the regulating part, and the sealing plug is extruded to the regulating part.

More preferably, the regulating piece is in threaded fit with the lower part of the inner cavity B, a regulating hole is formed in the center of the lower side of the regulating piece, and a liquid leakage hole is formed in the outer side of the regulating hole.

More preferably, the adjustment holes are polygonal holes.

More preferably, the adjusting piece can move relative to the inner cavity B and is sealed with the inner cavity B, the upper end of the adjusting piece acts on the elastic sealing plug, the inner cavity of the adjusting piece is formed by the hollow part of the adjusting piece, the upper part is provided with a liquid leakage hole, the lower end of the adjusting piece forms a liquid discharge pipe, the adjusting piece is communicated with the inner cavity B and the liquid discharge pipe through the liquid leakage hole and the inner cavity of the adjusting piece, and the liquid discharge pipe extends downwards to the outside of the shell; the outer wall of the liquid discharge pipe of the adjusting piece is provided with external threads, the lower end of the shell is provided with an adjusting nut, and the external threads are matched with the adjusting nut.

As a preferred mode, the energy storage pressure accumulation mechanism comprises an elastic sealing plug, the upper end face of the elastic sealing plug is used for sealing the liquid channel, the lower part of the elastic sealing plug is provided with a liquid leakage hole, and the liquid leakage hole is communicated with the liquid outlet.

As a preferred mode, the energy storage pressure accumulating mechanism comprises a sealing seat and a spring, wherein the upper end face of the sealing seat is used for blocking the liquid channel, the lower end of the sealing seat is connected with the spring, the upper end of the spring is abutted against the sealing seat, and the lower end of the spring is abutted against the bottom of the inner cavity B.

As a preferred mode, energy storage pressure accumulating mechanism includes sealing seat, spring and regulation seat, and sealing seat up end is used for shutoff liquid channel, and the lower extreme is connected with the spring, and the spring upper end is contradicted with the sealing seat, and the lower extreme is supported with the regulation seat and is touched, and regulation seat can be relative inner chamber B removal, and regulation seat lower extreme forms the fluid-discharge tube, and the fluid-discharge tube downwardly extending is outside the casing.

More preferably, the outer wall of the liquid discharge pipe of the adjusting seat is provided with an external thread, the lower end of the shell is provided with an adjusting nut, and the external thread is in threaded fit with the adjusting nut.

And a sealing ring is arranged between the adjusting seat and the inner wall of the inner cavity B.

More preferably, the outer side of the through hole of the lower shell is provided with an annular bulge, and the adjusting nut is provided with an annular groove matched with the annular bulge.

More preferably, a sheath which is clamped with the shell is arranged outside the adjusting nut.

As a preferable mode, a shell B is arranged in the inner cavity A, the inner cavity B is formed by the shell B, a liquid channel is formed at the lower end of the shell B, the liquid channel is positioned below the inner cavity A, and the energy storage and pressure accumulation mechanism comprises a weight, and the liquid channel is closed or opened by the weight.

The urine collecting container is a urine bag made of an elastomer; or a urine bottle/bag made of hard material, and provided with an air inlet pipe communicated with the atmosphere.

The beneficial effects of the utility model are as follows: an automatic control liquid draining device is arranged on a connecting pipeline between the catheter and the urine storage bag and is divided into an inner cavity A and an inner cavity B, a liquid channel between the two cavities is opened or closed and controlled by an energy storage and pressure accumulation mechanism, and the pressure in the bladder during urination depends on the energy storage and pressure accumulation mechanism. The utility model controls the urine discharge in the bladder through the automatic control liquid discharge device, and the urine discharge is related to the pressure in the bladder and is related to the urination physiology of a user, so that the adverse effect on the bladder caused by manual control is avoided. The device can be suitable for different bladder pressures, and the pressure setting of the self-control drainage device is adjusted to be equal to the bladder pressure of a user (the bladder pressure can stimulate the nerves of the urinary system to generate urine meaning). The device can easily realize normal physiological cycle circulation of bladder filling and emptying.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic view of a urinary catheterization apparatus.

Fig. 2 is a schematic diagram of a first self-controlling drain.

Fig. 3 is a schematic diagram of a second self-controlling drain.

Fig. 4 is a schematic structural view of a third self-controlling drain.

Fig. 5 is a schematic structural view of a fourth self-controlling drain.

Fig. 6 is a schematic structural view of a fifth self-controlling drain.

Fig. 7 is a schematic structural view of a sixth self-controlling drain.

Fig. 8 is a schematic view of another urinary catheterization apparatus.

Fig. 9 is an enlarged view at a in fig. 8.

In the figure: the urine collecting device comprises a urine guide tube 1, a connecting pipeline 2, a first pipeline 21, a second pipeline 22, a3 self-control liquid discharging device 31, a shell 311, a middle shell 312, a lower shell 313, an annular protrusion 314, an inner cavity A315, an inner cavity B316, a shell B317, a liquid channel 318, an air inlet A319, an air inlet 32, an outer liquid outlet 33, a liquid discharging pipe 34, an outer thread 341, a35 check valve A, an air vent 36, an energy storage and pressure accumulating mechanism 37, an elastic sealing plug 371, an adjusting member 372, an outer thread 3721, an adjusting hole 3722, an air leakage hole 3723, an adjusting member inner cavity 3724, an 373 sealing seat, a 374 spring, an 375 adjusting seat 376 sealing ring, an 377 adjusting nut 3771 annular groove 3772 thread, a 378 weight, an 379 sealing member 38 thread segments 39 sheaths, a 4 urine collecting container 41 air inlet 5 bladder 6 air inlet B and a 7 check valve B.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Example 1

The urethral catheterization device disclosed by the utility model, as shown in fig. 1, comprises a urethral catheter 1, a urine collection container 4 and a connecting pipeline 2 for connecting the urethral catheter 1 and the urine collection container 4, wherein the urethral catheter 1 is inserted into a bladder 5, the connecting pipeline 2 comprises a first pipeline 21 and a second pipeline 22, an automatic control drainage device 3 is arranged between the first pipeline 21 and the second pipeline 22, the automatic control drainage device 3 is respectively provided with a liquid inlet 32, an air inlet A319, a liquid outlet 33, an inner cavity A315, an inner cavity B316 and an energy storage and pressure accumulation mechanism 37, the liquid inlet 32 is communicated with the inner cavity A315 and is connected with the urethral catheter through the first pipeline 21, the inner cavity A315 is communicated with the outside atmosphere through the air inlet A319 in a one-way, the liquid outlet 33 is communicated with the inner cavity B316 and is connected with the urine collection container 4 through the second pipeline 22, the inner cavity A315 is communicated with the inner cavity B316 through a liquid channel, the energy storage mechanism 37 is arranged between the inner cavity A315 and the inner cavity B316, and the energy storage mechanism 37 controls the opening or closing of the liquid channel 318. The lumen a315 communicates with an air inlet a319 provided with a one-way valve a 35.

The opening and closing of the accumulator mechanism 37 is related to the fluid pressure in the lumen a315 and the lumen B316, while the lumen a315 is in communication with the bladder 5 and the pressure is equal to the urine pressure in the bladder 5. In this embodiment, as shown in fig. 2, the self-controlled drain 3 includes an energy storage and pressure accumulation mechanism 37 including an elastic sealing plug 371 and an adjusting member 372, wherein the upper end of the elastic sealing plug 371 is inserted into the liquid channel 318, the lower end is connected with the adjusting member 372, and the adjusting member 372 presses the elastic sealing plug 371. The elastic sealing plug 371 is deformed by extrusion of the adjusting piece 372, the internal stress generated by deformation of the elastic sealing plug 371 is F2, the liquid in the inner cavity A315 generates downward pressure F1 on the elastic sealing plug 371, and the liquid in the inner cavity B316 generates elastic forceThe sexual sealing plug 371 generates a downward pressure F3. The pressure in the lumen a315 and bladder 5 depends on the pressure F2, F2 experienced by the elastomeric sealing plug 371, and the value of F2 can be designed based on the pressure in the bladder 5 during normal urination. The pressure in the bladder 5 changes, and as the urine volume increases, the pressure is in the process of dynamic change. The pressure in the bladder 5 is normally 0-40cmH ₂ Between O, the value of F2 can be set to 40cm of water column pressure, for example. In order to adjust F2 according to individual differences, in this embodiment, the inner wall of the lower portion of the inner cavity B316 has a threaded section 38, i.e. is provided with an internal thread, the outer wall of the adjusting member 372 is provided with an external thread 3721, the outer wall of the adjusting member 372 is matched with the threaded section 38 of the inner wall of the inner cavity B316, the center of the lower side of the adjusting member 372 is provided with an adjusting hole 3722, and the outer side of the adjusting hole 3722 is provided with a liquid leakage hole 3723. The liquid in the inner cavity B316 flows to the liquid outlet 33 through the liquid leakage hole 3723. The function of the adjustment aperture 3722 is to connect the tool to adjust the position of the adjustment member 372. Preferably, the adjustment aperture 3722 is a polygonal aperture that mates with a polygonal adjustment bar. The adjusting rod is inserted from the adjusting hole 3722, the adjusting piece 372 is rotated, the matching position of the adjusting piece 372 and the inner cavity B316 is changed, the adjusting piece 372 is moved upwards, the elastic sealing plug 371 is extruded by the adjusting piece 372 to be large in deformation, namely F2 is increased, the adjusting piece 372 is moved downwards, and the elastic sealing plug 371 is extruded by the adjusting piece 372 to be small in deformation, namely F2 is reduced. In initial use, the elastic sealing plug 371 can be placed at a large deformation position, namely a large F2 position, and if the user has urine intention and the energy storage and pressure accumulation mechanism 37 is in an unopened state, the position of the adjusting piece 372 can be adjusted downwards to reduce F2, so that the energy storage and pressure accumulation mechanism 37 is opened. The size of the upward F2 borne by the elastic sealing plug 371 is flexibly adjusted according to the user, so that better use experience is provided for the user.

In this embodiment, the self-control liquid draining device 3 includes a housing 31, where the upper end and the lower end of the housing 31 are respectively provided with a liquid inlet 32 and a liquid outlet 33, and the inner cavity of the housing 31 is divided into an inner cavity a315 and an inner cavity B316. The shell 31 comprises an upper shell 311, a middle shell 312 and a lower shell 313, wherein the upper end of the upper shell 311 is provided with a liquid inlet 32, the lower end of the upper shell 311 is assembled with the middle shell 312, a cavity A315 is formed between the upper shell 311 and the middle shell 312, and a liquid channel 318 is arranged on the middle shell 312; the middle shell 312 is provided with an inner cavity B316, the lower shell 313 is assembled with the upper end and the middle shell 312, the lower end of the lower shell 313 is provided with a liquid discharge pipe 34, the liquid discharge pipe 34 and the lower shell 313 are integrally formed, and the liquid discharge pipe 34 is connected with the second pipeline 22.

The urine collecting container 4 is a urine bag made of an elastic body, and the urine bag made of the elastic body can expand along with urine entering, so that the urine can flow smoothly. The urine collection vessel 4 may also be a urine bottle/bag made of hard material, provided with an air inlet pipe 41 communicating with the atmosphere.

Example 2

The structure of the self-controlled liquid draining device 3 in this embodiment is different from that of the embodiment 1, and as shown in fig. 3, the energy storage and pressure accumulation mechanism 3 includes an elastic sealing plug 371 and an adjusting member, the upper end surface of the elastic sealing plug 371 is used for blocking the liquid channel 318, the lower end is connected with the adjusting member 372, and the adjusting member 372 extrudes the sealing plug. The adjusting piece 372 can move relative to the inner cavity B316 and is sealed with the inner cavity B, the upper end of the adjusting piece 372 acts on the elastic sealing plug 371, an adjusting piece inner cavity 3724 is formed in the adjusting piece 372 in a hollow mode, a liquid leakage hole 3723 is formed in the upper portion of the adjusting piece 372, a liquid discharge pipe 34 is formed in the lower end of the adjusting piece 372, the adjusting piece 372 is communicated with the inner cavity B and the liquid discharge pipe 34 through the liquid leakage hole 3723 and the adjusting piece inner cavity 3724, and the liquid discharge pipe 34 extends downwards to the outside of the shell; the outer wall of the liquid discharge pipe 34 of the adjusting piece 372 is provided with an external thread 341, the lower end of the shell is provided with an adjusting nut 377, and the liquid discharge pipe 34 is matched with the adjusting nut 377. The liquid flowing into the cavity B316 flows into the regulator cavity 3724 through the drain hole 3723 and flows out of the drain pipe 34. The deformation of the elastic sealing plug 371 can be changed by the position change between the adjusting piece 372 and the adjusting nut 377, so that the internal stress F2 generated by the deformation of the elastic sealing plug 371 is controlled. This configuration allows for adjustment by directly rotating the drain 34 without the aid of additional tools during adjustment.

The shell 31 of the self-control liquid draining device 3 comprises an upper shell 311, a middle shell 312 and a lower shell 313, wherein the upper end of the upper shell 311 is provided with a liquid inlet 32, the lower end of the upper shell 311 is assembled with the middle shell 312, a cavity A315 is formed between the upper shell 311 and the middle shell 312, a liquid channel 318 is arranged on the middle shell 312, and a cavity B316 is arranged on the middle shell 312; the lower case 313 is assembled with the upper end and the middle case 312, and a through hole for receiving the drain pipe 34 therethrough is provided at the lower end of the lower case 313. An annular protrusion 314 is provided on the outside of the through hole of the lower case 313, and an annular groove 3771 is provided on the adjusting nut 377 to be engaged with the annular protrusion 314. The adjusting nut 377 is provided with a sheath 39 engaged with the lower case 313. The adjustment nut 377 is fixed to the lower case 313 by this structure.

Example 3

Compared with the embodiment 1, the self-control liquid draining device of the embodiment omits the adjusting piece 372 in the energy storage and pressure accumulation mechanism, the energy storage and pressure accumulation mechanism of the embodiment comprises an elastic sealing plug 371, the upper end face of the elastic sealing plug 371 is used for sealing the liquid channel 318, the lower part of the elastic sealing plug is provided with a liquid leakage hole 3723, and the liquid leakage hole 3723 is communicated with the liquid outlet. After the elastic sealing plug 371 is opened, the liquid in the cavity A315 flows into the cavity B316 through the liquid channel 318, and the liquid in the cavity B316 flows into the liquid outlet to be discharged. After the housing is assembled, the elastomeric sealing plug 371 will have a pressure which may be the set (standard) pressure for bladder urination.

Example 4

The structure of the energy storage and pressure accumulation mechanism 37 of this embodiment is different from that of the self-control liquid draining device 3 in embodiment 1, as shown in fig. 5, and the energy storage and pressure accumulation mechanism 37 comprises a sealing seat 373, a spring 374 and an adjusting seat 375, wherein the upper end surface of the sealing seat 373 is used for blocking the liquid channel 318, the lower end of the sealing seat 373 is connected with the spring 374, the upper end of the spring 374 is in contact with the sealing seat 373, the lower end of the spring 374 is in contact with the adjusting seat 375, the adjusting seat 375 can move relative to the inner cavity B316, the lower end of the adjusting seat 375 forms a liquid draining pipe 34, and the liquid draining pipe 34 extends downwards to the outside of the shell 31. The position of the adjusting seat 375 is adjusted to change the acting force of the spring 374 on the sealing seat 373, thereby adjusting the upward force F2 exerted by the spring 374 on the sealing seat 373.

As a preferable structure, the outer wall of the drain pipe 34 of the adjusting seat 375 is provided with an external thread 341, the lower end of the housing 31 is provided with an adjusting nut 377, the outer wall of the drain pipe 34 is provided with an external thread 3721, the inner wall of the adjusting nut 377 is provided with an internal thread 3772, the drain pipe 34 is in threaded fit with the adjusting nut 377, and the position of the adjusting seat 375 can be adjusted by adjusting the relative positions of the drain pipe 34 and the adjusting nut 377. This configuration allows for adjustment by directly rotating the drain 34 without the aid of additional tools during adjustment.

In this embodiment, a sealing ring 376 is disposed between the adjusting seat 375 and the inner wall of the inner cavity B316 to ensure a tight fit between the adjusting seat 375 and the inner cavity B316, thereby preventing leakage.

As a preferred mode, the shell 31 of the self-control liquid draining device 3 comprises an upper shell 311, a middle shell 312 and a lower shell 313, wherein the upper end of the upper shell 311 is provided with a liquid inlet 32, the lower end of the upper shell 311 is assembled with the middle shell 312, an inner cavity A315 is formed between the upper shell 311 and the middle shell 312, a liquid channel 318 is arranged on the middle shell 312, and an inner cavity B316 is arranged on the middle shell 312; the lower case 313 is assembled with the upper end and the middle case 312, and a through hole for receiving the drain pipe 34 therethrough is provided at the lower end of the lower case 313. An annular protrusion 314 is provided on the outside of the through hole of the lower case 313, and an annular groove 3771 is provided on the adjusting nut 377 to be engaged with the annular protrusion 314. The adjusting nut 377 is provided with a sheath 39 engaged with the lower case 313. The adjustment nut 377 is fixed to the lower case 313 by this structure.

Example 5

The structure of the self-control liquid discharging device 3 of this embodiment is shown in fig. 6, and the structure of the adjusting seat 375 is omitted based on embodiment 4. The energy storage and pressure accumulation mechanism 37 comprises a sealing seat 373 and a spring 374, wherein the upper end surface of the sealing seat 373 is used for blocking the liquid channel 318, the lower end of the sealing seat 373 is connected with the spring 374, the upper end of the spring 374 is abutted against the sealing seat 373, and the lower end is abutted against the bottom of the inner cavity B316. After the housing 31 is sealingly assembled, the spring 374 will have a pressure, which may be the set (normal) pressure for bladder urination.

Example 6

Referring to fig. 7, the structure of the self-control liquid draining device 3 in this embodiment is shown in fig. 7, a housing B317 is provided in the inner cavity a315, the housing B317 forms an inner cavity B316, a liquid channel 318 is formed at the lower end of the housing B317, the liquid channel 318 is located below the inner cavity a315, the energy storage and pressure accumulation mechanism 37 includes a weight 378, and the liquid channel 318 is closed or opened by the weight 378. More preferably, a sealing member 379 is disposed under the weight 378, and the weight 378 closes or opens the liquid passage 318 through the sealing member 379. When the upward force of the liquid entering the lumen A315 is greater than the downward force of the weight 378, the weight 378 moves upward and the liquid passageway 318 opens; or the fluid in lumen a315 can be forced downward against the seal 379 by the weight 378, the seal 379 opens and fluid flows from the fluid passageway 318 into lumen B316 and out the fluid outlet.

Example 7

The difference in this embodiment is that the second pipe 22 is in one-way communication with the outside atmosphere through the air inlet B6, as compared with embodiment 1. The air inlet B6 is provided with a one-way valve B7 to meet the purpose of one-way conduction. This configuration has the advantage of facilitating the drainage of the liquid in the second conduit 22. The self-controlled drain 3 of each of examples 1 to 6 can be applied to example 7.

The principle of operation of the present utility model is that the elastic sealing plug or seat 373 or weight 378 allows the bladder to accumulate fluid to create a bladder pressure, the force created by this structure being opposite to the bladder pressure. The one-way valve A which is in one-way conduction between the atmosphere and the bladder can enable the bladder to return to an initial state without liquid, the one-way valve A is in a closed state when a force is applied in a normal or reverse closing direction, and the opening force in the forward conduction process is as small as possible. The normal fluid flow generates a force that is greater than the force generated by the elastomeric sealing plug 371 or seat 373 or weight 378. So as to ensure that the liquid in the whole system is completely discharged.

The working process of the present utility model will be described in detail with the structure of the elastic sealing plug 371 or the sealing seat 373 (embodiment 1-embodiment 5), in embodiment 6, the liquid in the cavity a315 generates an upward force F1 against the weight 378 of the self-control drain 3, the weight 378 receives a gravity force F2, and the liquid entering the cavity B316 generates an upward buoyancy force F3 against the weight 378, which has a direction opposite to that of the elastic sealing plug 371 or the sealing seat 373, but the principle is similar.

(1) Urine in the bladder 5 enters the inner cavity A315 of the automatic control liquid draining device 3 from the catheter 1, the liquid in the inner cavity A315 generates downward pressure F1 on the elastic sealing plug 371 or the sealing seat 373 of the automatic control liquid draining device 3, internal stress generated by deformation of the elastic sealing plug 371 or the spring 374 applies upward force F2 to the sealing seat 373, when the urine in the bladder 5 is less, F1 is less than F2, and the elastic sealing plug 371 or the sealing seat 373 seals the liquid channel 318.

(2) As the urine in bladder 5 and lumen a315 increases, pressure F1 increases, and fluid passage 318 is in an open and closed threshold when f1=f2, at which point lumen a315 fluid passage 318 enters lumen B316 slightly as fluid increases into lumen a 315. Urine gradually enters the inner cavity B316 and the second pipeline 22, and forms a pressure F3 due to gravity, the liquid in the inner cavity B316 generates a downward pressure F3 to the elastic sealing plug 371 or the sealing seat 373, and at this time, air in the inner cavity B316 and the second pipeline 22 is discharged.

(3) When f1+f3 > F2, the elastic sealing plug 371 or the sealing seat 373 is opened to form a rapid and stable liquid flow, at which time F1 decreases due to decrease in urine and F3 increases due to increase in urine in the second pipe 22. I.e., f1+f3 is always greater than F2, liquid always flows from lumen a315 into lumen B316.

(4) When there is no urine in bladder 5 and lumen a315 (i.e., f1=0), F3 is still greater than F2 (i.e., the second conduit 22 is required to be sufficiently high so that the pressure F3 generated by the fluid in the conduit is greater than F2). The liquid in the second pipeline 22 continues to descend under the action of gravity, and as the liquid descends, the inner cavities A315 and B316 gradually form negative pressure and gradually increase. At this time, the liquid in the second pipe 22 is subjected to two forces: self-generated downward gravity and negative pressure generated upward force. The increasing negative pressure has an inhibiting effect (slowing) of the flow rate of the liquid in the second conduit 22.

(5) As the liquid level in the second line 22 continues to decrease, the negative pressure in the lumen a315 and the lumen B316 continues to increase, and when the negative pressure increases to a certain level, the check valve a35 is opened, and the lumen a315 and the lumen B316 communicate with the outside atmospheric pressure, i.e., the lumen a315 and the lumen B316 are at the atmospheric pressure, through the vent 36. The sealing member (elastic sealing plug 371 or sealing seat 373) seals the liquid channel 318 between inner cavity A315 and inner cavity B316 under the pretightening force, liquid upper end and lower end in the second pipeline 22 are atmospheric pressure, will continue flowing under the gravity effect, the liquid level will continue to reduce, inner cavity B316 forms the negative pressure and increases gradually, when the pressure that the air pressure difference formed in both sides of the sealing member is greater than pretightening force, the sealing channel will be opened, inner cavity B316 is because the air is replenished, the atmospheric pressure is atmospheric pressure again. The above process is repeated.

(6) The upper and lower ends of the liquid in the second pipe 22 are both in communication with the atmospheric pressure, and the liquid flows out entirely from the second pipe 22 under the effect of gravity (the structure of embodiment 1 requires the second pipe 22 to be long enough, and the liquid in the second pipe can overcome the resistance). With the structure in embodiment 7, when the liquid level in the second pipeline 22 falls below the check valve B7, the negative pressure at the upper end of the liquid level will open the check valve B7, that is, the second pipeline 22 and the inner cavity B316 are at atmospheric pressure, and the liquid can completely flow out of the second pipeline 22 due to the small unidirectional opening pressure of the check valve B7 and the certain negative pressure of the inner cavity B316.

(7) The next cycle is entered.

The urine guiding device is suitable for normal urination physiological users, urine in the bladder 5 is controlled to be discharged through the automatic control liquid discharging device 3, internal stress generated by deformation of the elastic sealing plug 371 or a spring 374 is applied to the sealing seat 373 to generate upward force F2, liquid in the inner cavity A315 generates downward pressure F1 on the elastic sealing plug 371 or the sealing seat 373 of the automatic control liquid discharging device 3, liquid in the inner cavity B316 generates downward pressure F3 on the elastic sealing plug 371 or the sealing seat 373, a one-way valve A35 is arranged on the inner cavity A315, the energy storage pressure accumulating mechanism 37 is ensured to automatically open a liquid channel 318 when urination is performed, the liquid channel 318 is automatically closed after urination is finished, and urine can smoothly enter the urine collecting container 4. The urine discharge of the urethral catheterization device is related to the pressure in the bladder 5, so that the urethral catheterization device automatically discharges urine according to the pressure of the urine in the bladder 5, and the urine discharge is related to the urine discharge physiology of a user, thereby avoiding the adverse effect on the bladder 5 caused by manual control. In examples 3, 5 and 6, the (standard) pressure of bladder urination was set by using the pressure generated by the elastic sealing plug, the sealing seat (and the spring) and the weight, respectively. In examples 1, 2 and 4, the pressure generated by the elastic sealing member or the sealing seat is adjusted by the adjusting member 372 or the adjusting seat, so that different bladder pressures can be applied, and the pressure setting of the self-control drainage device is adjusted to be equal to the bladder pressure of the user (the bladder pressure can stimulate the nerves of the urinary system to generate urine). The utility model can easily realize normal physiological cycle circulation of bladder filling and emptying.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. Urethral catheterization device, including catheter, urine collection container and connect catheter and urine collection container's connecting line, its characterized in that: the connecting pipeline comprises a first pipeline and a second pipeline, and an automatic control liquid draining device is arranged between the first pipeline and the second pipeline; the automatic control liquid discharging device is respectively provided with a liquid inlet, an air inlet A, a liquid outlet, an inner cavity A, an inner cavity B and an energy storage and pressure accumulation mechanism, wherein the liquid inlet is communicated with the inner cavity A and is connected with the catheter through a first pipeline, the inner cavity A is communicated with the outside atmosphere in a one-way manner through the air inlet, the liquid outlet is communicated with the inner cavity B and is connected with a urine collection container through a second pipeline, the inner cavity A and the inner cavity B are communicated through a liquid channel, the energy storage and pressure accumulation mechanism is arranged between the inner cavity A and the inner cavity B, and the energy storage and pressure accumulation mechanism controls the opening or closing of the liquid channel.

2. The urinary catheterization device of claim 1, wherein: the inner cavity A is communicated with the outside atmosphere in one way through an air inlet A provided with a one-way valve A.

3. The urinary catheterization device of claim 1, wherein: the second pipeline is communicated with the outside atmosphere in one way through the air inlet B.

4. A urinary catheterization device as claimed in any of the claims 1-3, characterized in that: the energy storage pressure accumulation mechanism comprises an elastic sealing plug and an adjusting piece, wherein the upper end face of the elastic sealing plug is used for blocking a liquid channel, the lower end of the elastic sealing plug is connected with the adjusting piece, and the adjusting piece extrudes the sealing plug.

5. The urinary catheterization device of claim 4, wherein: the adjusting piece is in threaded fit with the lower portion of the inner cavity B, an adjusting hole is formed in the center of the lower side of the adjusting piece, and a liquid leakage hole is formed in the outer side of the adjusting hole.

6. The urinary catheterization device of claim 4, wherein: the adjusting piece can move relative to the inner cavity B and is sealed with the inner cavity B, the upper end of the adjusting piece acts on the elastic sealing plug, the inner cavity of the adjusting piece is hollow to form an inner cavity of the adjusting piece, the upper part is provided with a liquid leakage hole, the lower end of the adjusting piece forms a liquid discharge pipe, the adjusting piece is communicated with the inner cavity B and the liquid discharge pipe through the liquid leakage hole and the inner cavity of the adjusting piece, and the liquid discharge pipe extends downwards to the outside of the shell; the outer wall of the liquid discharge pipe of the adjusting piece is provided with external threads, the lower end of the shell is provided with an adjusting nut, and the external threads are matched with the adjusting nut.

7. A urinary catheterization device as claimed in any of the claims 1-3, characterized in that: the energy storage pressure accumulation mechanism comprises an elastic sealing plug, the upper end face of the elastic sealing plug is used for sealing the liquid channel, the lower portion of the elastic sealing plug is provided with a liquid leakage hole, and the liquid leakage hole is communicated with the liquid outlet.

8. A urinary catheterization device as claimed in any of the claims 1-3, characterized in that: the energy storage pressure accumulation mechanism comprises a sealing seat and a spring, wherein the upper end face of the sealing seat is used for blocking the liquid channel, the lower end of the sealing seat is connected with the spring, the upper end of the spring is abutted against the sealing seat, and the lower end of the spring is abutted against the bottom of the inner cavity B.

9. A urinary catheterization device as claimed in any of the claims 1-3, characterized in that: the inner cavity A is internally provided with a shell B, the shell B forms the inner cavity B, the lower end of the shell B forms a liquid channel, the liquid channel is positioned below the inner cavity A, and the energy storage and pressure accumulation mechanism comprises a weight, and the liquid channel is closed or opened through the weight.

10. A urinary catheterization device as claimed in any of the claims 1-3, characterized in that: the energy storage and pressure accumulation mechanism comprises a sealing seat, a spring and an adjusting seat, wherein the upper end surface of the sealing seat is used for blocking a liquid channel, the lower end of the sealing seat is connected with the spring, the upper end of the spring is abutted against the sealing seat, the lower end of the spring is abutted against the adjusting seat, the adjusting seat can move relative to the inner cavity B, a liquid discharge pipe is formed at the lower end of the adjusting seat, and the liquid discharge pipe extends downwards to the outside of the shell; the outer wall of the liquid discharge pipe of the adjusting seat is provided with external threads, the lower end of the shell is provided with an adjusting nut, and the external threads are in threaded fit with the adjusting nut; a sealing ring is arranged between the adjusting seat and the inner wall of the inner cavity B; the adjusting nut is provided with a sheath which is clamped with the shell.