CN106669014A

CN106669014A - Urinary catheterization device

Info

Publication number: CN106669014A
Application number: CN201710183130.7A
Authority: CN
Inventors: 车七石
Original assignee: Guangzhou Rainhome Pharm and Tech Co Ltd
Current assignee: Guangzhou Rainhome Pharm and Tech Co Ltd
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2017-05-17
Anticipated expiration: 2037-03-24
Also published as: CN106669014B

Abstract

The invention discloses a urinary catheterization device which comprises a ureter body. A positioning bag is arranged on the periphery of the upper end of the ureter body, and a branch way communicated with the inner cavity of the positioning bag is further arranged on the ureter body. The ureter body is further provided with a main urine tube, wherein the main urine tube comprises a urine inlet and a urine outlet, a switch valve is further arranged between the urine inlet and the urine outlet and used for turning on or off the urine inlet and the urine outlet, and the switch valve is close to the urine outlet. Compared with uncontrollable urination the prior art, the switch valve is arranged in the main urine tube of the urinary catheterization device, a patient can control drainage of the urine in the urinary bladder or not to achieve urine drainage controllability by operating the switch valve. In addition, compared with urine bag carrying in the prior art, the urinary catheterization device is simple in structure and convenient to carry, the problem that a patient suffering from prostate are inconvenient to move due to urine bag carrying after tube intubation is solved, and urinary tract infection situations are decreased.

Description

A kind of urethral catheterization device

Technical field

Technical field is washed the present invention relates to medicine equipment, more particularly to a kind of urethral catheterization device.

Background technology

Urethral catheterization is one of clinically common medical care precess, and catheter is the main apparatus for realizing urethral catheterization.Internal disease, Surgical disease, obstetrical and gynecological disease, orthopaedic disease and urological diseases perioperatively are required to carry out urethral catheterization to patient.It is especially right Needs plug in catheter for a long time is even more in prostate patient.

Traditional catheter primary structure includes urinary catheter main body and urinal, and urinary catheter main body has urine circulation passage, urinal Be connected to the bottom of urinary catheter main body, and with the outlet of urine circulation passage.When using, the upper end of urinary catheter main body is fixed In inside of human body, the upper port of urine circulation passage is connected with bladder, and urine is flow to inside urinal by urine circulation passage.

The catheter of said structure when in use, with following defect：Manual control is not received in above-mentioned urination, as long as i.e. bladder In have urine, urine will be flow to inside urinal along urine circulation passage.And because urinal need to be fixed on patient body or Other positions, greatly limit the activity of patient.If just inserted into the patient when patient requires to urinate, urinate after terminating again Catheter is extracted, being so repeatedly inserted into and extract can increase pain to patient, and easily produce urinary tract infections, and patient is given birth to Manage, mentally cause further injury.

In addition, the urine collected in urinal is as own wt produces one to the urinary catheter main body being arranged in patient's body Fixed pulling force, is easily caused urinary catheter main body and deviates from from patient's body, and urethra is caused to damage；And generally urinary catheter main body is fixed on Bladder, the pulling force meeting indirectly-acting that urinal is produced influences the health of patient on bladder.

Therefore, the structure of evacuating catheter how is improved, makes controlled micturition controllable, be those skilled in that art urgently to be resolved hurrily Technical problem.

The content of the invention

In order to solve the above technical problems, the invention provides a kind of urethral catheterization device, including urinary catheter main body, the urinary catheter main body Upper end periphery be provided with positioning capsule, be additionally provided with the urinary catheter main body and it is described positioning capsule inner space branch road；Institute State urinary catheter main body to be also responsible for urine, the urine supervisor includes urine import and urine outlet, the urine import and institute State and be additionally provided with switch valve between urine outlet, for connecting or disconnecting the urine import and the urine outlet, and The switch valve is near the urine outlet.

Optionally, the switch valve is positioned at the inside of the urine supervisor, the two circumferential seal；The switch valve includes The first noumenon and relatively described the first noumenon slide laterally the second body of sealing, the first noumenon and second body Between be additionally provided with the elastomeric element for extending laterally；When pressing second body and the first noumenon is laterally opposed is moved to During precalculated position, the switch valve inner passage conducting, and second body compresses or stretches institute in moving process State elastomeric element.

Optionally, the first noumenon is provided with the first passage for connecting the urine import and the urine outlet, institute State the second body and be provided with second channel, second body blocks the first passage under normality；It is described second when pressing The body and the first noumenon is laterally opposed when being moved to precalculated position, the first passage is turned on by the second channel.

Optionally, the first noumenon has the valve pocket of one end open, and connection institute is offered on the first noumenon perisporium The first through hole and the second through hole of valve pocket are stated, the first through hole, second through hole and the valve pocket form described first and lead to Road；Second body is horizontally placed on the valve pocket, and the second body peripheral wall and the valve pocket internal perisporium from the opening Circumferential seal；Under normality, second body part is placed on the open outside, the part closure inside the valve pocket The first through hole or second through hole.

Optionally, second body includes poppet shaft and closure, and the two is laterally slidedly arranged on inside the valve pocket；Institute Poppet shaft is stated with the valve pocket circumferential seal；The elastomeric element includes the first elastomeric element and the second elastomeric element；Described One elastomeric element is arranged between the inner end of the poppet shaft and the valve pocket inwall, and the second channel is arranged at the valve Mandrel；Second elastomeric element is arranged between the closure and the valve pocket inwall, under normality, the valve element shaft portion The outside of the valve pocket is placed on, the closure is covered in the first through hole or the second through hole.

Optionally, the inwall of the valve pocket is additionally provided with the slide rail of depression, and the slide rail is extended laterally, the closure Relevant position is provided with the slideway for coordinating with the slide rail and sliding.

Optionally, the material of the switch valve is rigid plastics or soft silica gel.

Optionally, the switch valve is integrally formed by Shooting Technique with the urinary catheter main body, and the switch valve is circumferentially wrapped It is wrapped in the urinary catheter main body.

Optionally, along its length, the urinary catheter main body includes the first pipeline section and the second pipeline section that are detachably connected, described Positioning capsule is arranged at the upper end of first pipeline section, and the switch valve is located at the bottom of first pipeline section；The branch road Including the tie point being interconnected and the second branch road, first pipeline section and second pipeline section are respectively arranged at；Described The bottom of one branch road is provided with check valve.

Optionally, one of which sets fluted on the opposing end surface of first pipeline section and second pipeline section, another Person is provided with the projection installed with the groove fit, and the cooperative end part of first pipeline section is built-in with metal or magnetic portion Part, is provided with electromagnet on second pipeline section, second pipeline section is also built-in with wire, and the electromagnet passes through the wire It is connected with external power source.

With urinate in the prior art it is uncontrollable compared with, the present invention in urethral catheterization device urine supervisor in be provided with switch Valve, patient can control whether urine in bladder discharges by Operation switch valve, realize the controllability of urination.Simultaneously with it is existing Technology carries urinal and compares, and the urethral catheterization device simple structure is easy to carry, and after solving prostate patient's intubation, carries urinal The problem of inconvenient activity, the occurrence of reduce urinary tract infections.

Brief description of the drawings

Fig. 1 is the cross section structure diagram of urethral catheterization device in an embodiment of the present invention；

Fig. 2 is the cross section structure diagram of an embodiment of the present invention breaker in middle valve；

Fig. 3 is the schematic diagram in the conduction state of switch valve shown in Fig. 2；

Fig. 4 is the structural representation of another kind embodiment breaker in middle valve of the invention；

Fig. 5 is the top view of switch valve and urinary catheter main body；

Fig. 6 is enlarged drawing at A in Fig. 1.

Wherein, in Fig. 1 to Fig. 6：

Urinary catheter main body 1, the first pipeline section 11, groove 11a, the second pipeline section 12, wire 121, raised 122, urine supervisor 1a, the One branch road 11b, the second branch road 12b；

Positioning capsule 2；

Switch valve 3, the first noumenon 31, valve pocket 311, first through hole 312, the second through hole 313, the second body 32, poppet shaft 321st, closure 322, second channel 32a, elastomeric element 33, the first elastomeric element 331, the second elastomeric element 332, silica gel 34；

Check valve 4.

Specific embodiment

For the existing catheter urination described in background technology not by the technical problem of manual control, depth has been carried out herein Enter research, and on the basis of research, it is proposed that solve the technical scheme of above-mentioned technical problem

In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real The present invention is described in further detail to apply example.

Fig. 1 is refer to, Fig. 1 is the cross section structure diagram of urethral catheterization device in an embodiment of the present invention.

The invention provides a kind of urethral catheterization device, it is mainly used in the intravesical urine catheterization of patient to external.Urethral catheterization is filled Put including urinary catheter main body 1, predominantly other pipelines of urinary catheter main body 1 open up and the installation of part provides platform.Urinary catheter master Body 1 can be reduced urinary catheter main body 1 and be installed on when in patient's body using the softer soft material of silica type, soft material, Damage of the urinary catheter main body 1 to patient body, and improve the comfortableness after installing.

In addition, being installed in patient's body the probability for triggering infection to reduce urinary catheter main body 1, the outer wall of urinary catheter main body 1 is also Nano-silver ionic coating or chitosan coat can be scribbled.Nano-silver ionic or shitosan have functions that bactericidal antiphlogistic.

The upper end periphery of urinary catheter main body 1 is provided with positioning capsule 2, and its Main Function is to realize urinary catheter main body 1 and patient's wing The positioning of Guang.Positioning capsule 2 can be ring-type, and its quantity can be one, or multiple.

Before urinary catheter main body 1 is not positioned also with bladder, without medium in positioning capsule 2, the inside for positioning capsule 2 is substantially at vacuum shape State, that is, position the outer wall of the laminating of capsule 2 and urinary catheter main body 1.The branch road with the positioning inner space of capsule 2 is additionally provided with urinary catheter main body 1, After urinary catheter main body 1 is installed in patient's body, liquid or gas, positioning are filled to the inside of positioning capsule 2 from the lower end of branch road The swelling volume of capsule 2 becomes big, so as to be positioned at vesicourethral orifice position.Generally, it is additionally provided with the branch road of connection positioning capsule 2 unidirectional Valve 4, check valve 4 is closed under normality, when the inside to positioning capsule 2 fills liquid or gas, in liquid or In the presence of gas pressure, check valve 4 is opened.After liquid or gas charge is completed, check valve 4 is automatically switched off.Unidirectionally Valve 4 can be resilience diaphragm seal.

Urinary catheter main body 1 also includes that urine is responsible for 1a, and urine supervisor 1a includes urine import and urine outlet.Urinary catheter main body 1 After being installed in patient's body, urine inlet communication bladder inner chamber, urine outlet end extends to perineum or penis portion.

Urethral catheterization device provided by the present invention also includes switch valve 3, is arranged between urine import and the urine outlet. Switch valve 3 is used to connect or disconnect urine import and urine outlet.

During normality, switch valve 3 is closed, i.e. urine import and urine outlet disconnects；When patient needs urination, Because switch valve 3 is set near urine outlet position, patient can connect urine outlet and urine import with manual unlocking switch valve 3 Logical, so that the urine inside bladder is drained into vitro through urine outlet, after urination terminates, patient is again adjusted to pass switch valve 3 Closed state.

With urinate in the prior art it is uncontrollable compared with, the present invention in urethral catheterization device urine supervisor 1a in be provided with switch Valve 3, patient can control whether urine in bladder discharges by Operation switch valve 3, realize the controllability of urination.Simultaneously with it is existing There is technology to carry urinal to compare, the urethral catheterization device simple structure is easy to carry, after solving prostate patient's intubation, carry urine The problem of bag inconvenient activity, the occurrence of reduce urinary tract infections.

Switch valve 3 can be positioned at the inside that urine is responsible for 1a.The number with the parts of patient contact can so be reduced Amount, improves the comfortableness for carrying urethral catheterization device, and further reduce infection risk.

Refer to Fig. 2 and Fig. 3, Fig. 2 is the cross section structure diagram of an embodiment of the present invention breaker in middle valve；Fig. 3 is Fig. 2 Shown switch valve schematic diagram in the conduction state.

Specifically, switch valve 3 can include second that the first noumenon 31 and relative the first noumenon 31 can slide laterally Body 32.It should be noted that transverse direction specifically described herein refers to that the radial direction of 1a is responsible for along urine.The first noumenon 31 and second The elastomeric element 33 for extending laterally is additionally provided between body 32.

The first noumenon 31 is provided with the first passage of connection urine import and urine outlet, under normality, the envelope of the second body 32 Stifled first passage；When the second body 32 of pressing laterally moves to precalculated position, first passage conducting, i.e. urine import and urine Outlet is turned on by first passage, and the second body 32 compresses or stretch the elastomeric element 33 in moving process.

After the pressing force on the second body 32 is cancelled, in the presence of the restoring force of elastomeric element 33, second body 32 recover to home position, and the first passage is blocked again.

That is, when patient needs urination, can laterally be moved with respect to the first noumenon 31 with the second body of Manual press 32 It is dynamic, turn on first passage, and then realize urine import and the conducting of urine outlet.

Further, the second body 32 in above-described embodiment can be provided with second channel 32a, and first passage is by the Two passage 32a are turned on.I.e. after the second body 32 of pressing laterally moves to precalculated position, first passage passes through second channel 32a Conducting.

The structure of first passage can following present a kind of specific embodiment of first passage by diversified forms.

Referring again to Fig. 2, in a kind of specific embodiment, the inside of the first noumenon 31 has the valve of one end open Chamber 311, offers the through hole 313 of first through hole 312 and second of connection valve pocket 311, first through hole 312, valve on the first noumenon 31 311 and second through hole of chamber 313 forms first passage.Second body 32 is horizontally placed on valve pocket 311 from opening, and the second body 32 with The internal circumferential of valve pocket 311 is sealed, and the part of the second body 32 is placed on outside valve pocket 311 under normality, the portion inside valve pocket 311 The through hole 313 of the first through hole 312 or second is blocked up in enfeoffment.Elastomeric element 33 can be connected to the inner end of the second body 32 with Between the inside of valve pocket 311, when the second body 32 and 31 relative motion of the first noumenon is pressed, elasticity of compression part 33.

The preferred spring of elastomeric element 33 herein, naturally it is also possible to be that other can realize flexible part.

In order to reduce the difficulty of processing of second channel 32a, second channel 32a can be the through hole being vertically arranged, i.e., first The through hole 313 of through hole 312 and second is coaxially disposed.

The first noumenon 31 is set to the structure of valve pocket 311 and can as far as possible reduce the weight of switch valve 3 in the implementation method, reduces Switch valve 3 reduces influence of the urethral catheterization device to patient body because of the tractive force to bladder produced by self gravitation.And second The part of body 32 is located at outside valve pocket 311, is easy to the second body of patient depresses 32.

Fig. 4 is refer to, Fig. 4 is the structural representation of another kind embodiment breaker in middle valve 3 of the invention.

In another specific embodiment, the second body 32 can include poppet shaft 321 and closure 322, and the two is equal Laterally it is slidedly arranged on inside valve pocket 311；Poppet shaft 321 and closure 322 are laterally arranged in juxtaposition.Poppet shaft 321 is circumferential with valve pocket 311 Sealing.

Elastomeric element 33 can specifically include the first elastomeric element 331 and the second elastomeric element 332；Same first elastic portion The elastomeric element 332 of part 331 and second can be spring.First elastomeric element 331 is arranged at the inner end and valve of poppet shaft 321 Between the inwall of chamber 311, second channel 32a is arranged at poppet shaft 321；Second elastomeric element 332 is arranged at closure 322 and valve pocket Between 311 inwalls, under normality, as the outside of the opening of valve pocket 311, closure 322 is covered in described the to the part of poppet shaft 321 dew One through hole 312 or the second through hole 313.The implementation method that closure 322 blocks the second through hole 313 is given in Fig. 4.By closing The structure arrangement of reason, closure 322 also can be closure first through hole 312, not repeat herein.

When 31 relative lateral motion of poppet shaft 321 and the first noumenon is pressed, poppet shaft 321 promotes both closures 322 Closure 322 is pushed away the through hole 313 of first through hole 312 or second by transverse movement to the right together, i.e. poppet shaft 321, works as valve element After axle 321 moves to precalculated position, the through hole 313 of first through hole 312 and second is led by the second channel 32a in poppet shaft 321 It is logical.

Poppet shaft 321 compresses the first elastomeric element 331 during moving right；Closure 322 is moving right During, at the same compress the second elastomeric element 332, so when in poppet shaft 321 external force cancel after, poppet shaft 321 and sealing Lid 322 under the restoring force effect of the first elastomeric element 331 and the second elastomeric element 332, returns to initial position respectively, that is, seal Lid 322 blocks the through hole 313 of first through hole 312 or second.

The second body 32 includes poppet shaft 321 and closure 322 in the implementation method, and both pass through the first elastic portion respectively The elastomeric element 332 of part 331 and second is connected with valve pocket 311, and so when the first elastomeric element 331 fails, closure 322 can be with Recover to increase the reliability of urethral catheterization device to initial position in the presence of the second elastomeric element 332.

Cause urine to flow out in order to avoid closure 322 is arbitrarily slided, can also carry out arranged below.

Further, the inwall of the valve pocket 311 in above-described embodiment is also provided with the slide rail of depression, and slide rail laterally prolongs Stretch, the relevant position of closure 322 is provided with the slideway for coordinating with slide rail and sliding.Slide rail is sunk structure, and correspondingly slideway is convex Play structure.When being pushed laterally through the hole, the slideway of closure 322 can be moved closure 322 along slide rail, increased closure 322 and moved The reliability of work.And slide rail can be sunk structure, it is to avoid the action on the setting of slide rail on poppet shaft 321 produces influence.

The approximate range of the diameter of the through hole 313 of first through hole 312 and second in the various embodiments described above can be for 0.1mm extremely 3mm。

The body 32 of the first noumenon 31 and second herein can be cylindric, and the inner end of the second body 32 can be processed It is arc-shaped or coniform or other shapes.

In order to further improve the comfortableness of man patient's carrying, preferably urinary catheter main body 1 is completely disposed in vivo, but urine The too short installation that cannot complete urinary catheter main body 1 of pipe main body 1, therefore urethral catheterization device can also be set as follows.

Referring again to Fig. 1, in the various embodiments described above, along its length, urinary catheter main body 1 can include the He of the first pipeline section 11 Second pipeline section 12, wherein the first pipeline section 11 and the second pipeline section 12 are detachably connected.Positioning capsule 2 is arranged at the upper end of the first pipeline section 11 Portion, switch valve 3 is arranged at the bottom of the first pipeline section 11.Wherein, branch road also accordingly includes tie point 11b and the second branch road 12b, when the first pipeline section 11 and the second pipeline section 12 are in connection status, tie point 11b and the second branch road 12b is docked, from the Import filling gas or the liquid of two branch road 11b, gas or liquid enter positioning capsule 2 through the second branch road 12b, tie point 11b. Certainly the check valve 4 for being used to close branch road bottom is also disposed on tie point 11b, as shown in Figure 6.

For the ease of tie point 11b and the second branch road 12b is accurate and sealing docking, the upper end of the second branch road 12b may be used also To be provided with the linkage section for stretching out, the external diameter of linkage section can be slightly less than the internal diameter of tie point 11b lower ends.

Similarly, if other passages are additionally provided with urinary catheter main body 1, the setting of other passages may be referred to above branch road Setting on the first pipeline section 11 and the second pipeline section 12.

Before urinary catheter main body 1 is installed in patient's body, first installation is coordinated to form 1 first pipeline section 11 and the second pipeline section 12 Individual entirety, then again by assembling after the first pipeline section 11 and the second pipeline section 12 it is inserted into the patient, such first pipeline section 11 is complete It is built in patient's body, the second pipeline section 12 is partially disposed in patient's body, and it is external that bottom is placed on patient.By the second pipeline section 12 Second branch road 12b of upper setting carries out filling gas or liquid to positioning capsule 2, so that positioning capsule 2 is fixed on vesicourethral orifice Position.

After capsule 2 is positioned with vesicourethral orifice positioning, the second pipeline section 12 is disassembled from the first pipeline section 11, so that real Existing urethral catheterization device is built in patient's body completely, not visible from outside.So substantially increase the comfortableness of patient's carrying.

Following present one kind and realize the first pipeline section 11 and the dismountable specific embodiment of the second pipeline section 12.

In a kind of specific embodiment, one of which is provided with the opposing end surface of the first pipeline section 11 and the second pipeline section 12 Groove, another one is provided with the projection installed with groove fit, and the cooperative end part of the first pipeline section 11 is built-in with metal or magnetic Part, is provided with electromagnet on the second pipeline section 12, the second pipeline section 12 is also built-in with wire 121, electromagnet by wire 121 with it is outer Portion's power supply connection.

Show that the lower surface of the first pipeline section 11 sets groove 11a in Fig. 1, groove 11a is built-in with metal and (does not show in Fig. 1 Go out), the upper surface of the second pipeline section 12 sets raised 122, raised 122 specific implementations for being provided with electromagnet (not shown in figure 1) Mode.

When power supply is in "on" position, the electromagnet in the second pipeline section 12 has magnetic, attracts to be located at the first pipeline section 11 In metal or magnetic part, in the presence of magnetic force, the first pipeline section 11 and the second pipeline section 12 are closely linked；Work as electricity When source is off, electromagnetism ferromagnetism in the second pipeline section 12 disappears, and no longer attracts the metal in the first pipeline section 11, makes the Both one pipeline section 11 and the second pipeline section 12 are separated.Or change the second pipeline section 12 in electromagnet the sense of current, make the second pipeline section The magnetic pole of magnetic part opposed end is conversely, under homopolar-repulsion effect, first manages in electromagnet and the first pipeline section 11 in 12 The pipeline section 12 of section 11 and second is separated.

Fig. 5 is refer to, Fig. 5 is the top view of switch valve 3 and urinary catheter main body 1.

In the various embodiments described above, switch valve 3 is integrally formed by Shooting Technique with urinary catheter main body 1, and switch valve 3 is wrapped circumferentially around In urinary catheter main body 1.The preferred silica gel of material of usual urinary catheter main body 1, that is, after being molded, the circumferential of switch valve 3 is wrapped up by silica gel 34 In.

A kind of urethral catheterization device provided by the present invention is described in detail above.Specific case pair used herein Principle of the invention and implementation method are set forth, and the explanation of above example is only intended to help and understands the method for the present invention And its core concept.It should be pointed out that for those skilled in the art, before the principle of the invention is not departed from Put, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the guarantor of the claims in the present invention In the range of shield.

Claims

1. a kind of urethral catheterization device, including urinary catheter main body (1), the upper end periphery of the urinary catheter main body (1) is provided with positioning capsule (2) branch road with described positioning capsule (2) inner space, is additionally provided with the urinary catheter main body (1)；Characterized in that, the urine Pipe main body (1) also has urine supervisor (1a), and urine supervisor (1a) includes urine import and urine outlet, and the urine is entered Switch valve (3) is additionally provided between mouth and the urine outlet, for connecting or disconnecting the urine import and the urine Outlet, and the switch valve (3) is near the urine outlet.

2. urethral catheterization device as claimed in claim 1, it is characterised in that the switch valve (3) is positioned at the urine supervisor The inside of (1a), the two circumferential seal；The switch valve (3) the first noumenon (31) including the first noumenon (31) and relatively Second body (32) of sealing is slid laterally, transverse direction is additionally provided between the first noumenon (31) and second body (32) The elastomeric element (33) of extension, when press second body (32) and the first noumenon (31) it is laterally opposed be moved to it is predetermined During position, the switch valve inner passage conducting, and second body (32) compresses or stretches institute in moving process State elastomeric element (33).

3. urethral catheterization device as claimed in claim 2, it is characterised in that the first noumenon (31) is provided with the connection urine Import and the first passage of the urine outlet, second body (32) are provided with second channel (32a), described under normality Two bodies (32) block the first passage；When pressing second body (32) and the first noumenon (31) laterally opposed shifting Move during to precalculated position, the first passage is turned on by the second channel (32a).

4. urethral catheterization device as claimed in claim 3, it is characterised in that the valve pocket of the first noumenon (31) with one end open (311) first through hole (312) and the second through hole for connecting the valve pocket (311), are offered on the first noumenon (31) perisporium (313), the first through hole (312), second through hole (313) and the valve pocket (311) form the first passage；It is described Second body (32) is horizontally placed on the valve pocket (311), and the second body (32) periphery wall and the valve pocket from the opening (311) internal perisporium circumferential seal；Under normality, second body (32) is partly placed on the open outside, positioned at the valve The internal part in chamber (311) blocks the first through hole (312) or second through hole (313).

5. urethral catheterization device as claimed in claim 4, it is characterised in that second body (32) including poppet shaft (321) and Closure (322), it is internal that the two is laterally slidedly arranged on the valve pocket (311)；The poppet shaft (321) and the valve pocket (311) Circumferential seal；The elastomeric element (33) includes the first elastomeric element (331) and the second elastomeric element (332)；First bullet Property part (331) is arranged between the inner end of the poppet shaft (321) and the valve pocket (311) inwall, the second channel (32a) is arranged in the poppet shaft (321)；Second elastomeric element (332) be arranged at the closure (322) with it is described Between valve pocket (311) inwall, under normality, the poppet shaft (321) is partly placed on the outside of the valve pocket (311), described close Capping (322) is covered in the first through hole (312) or the second through hole (313).

6. urethral catheterization device as claimed in claim 5, it is characterised in that the inwall of the valve pocket (311) is additionally provided with depression Slide rail, the slide rail is extended laterally, and the relevant position of the closure (322) is provided with the cunning for coordinating with the slide rail and sliding Road.

7. urethral catheterization device as claimed in claim 1, it is characterised in that the material of the switch valve (3) be rigid plastics or Soft silica gel.

8. the urethral catheterization device as described in any one of claim 1 to 7, it is characterised in that the switch valve (3) is by Shooting Technique It is integrally formed with the urinary catheter main body (1), the switch valve (3) is wrapped circumferentially around in the urinary catheter main body (1).

9. the urethral catheterization device as described in any one of claim 1 to 7, it is characterised in that along its length, the urinary catheter main body (1) including the first pipeline section (11) and the second pipeline section (12) that are detachably connected, positioning capsule (2) is arranged at first pipeline section (11) upper end, the switch valve (3) is positioned at the bottom of first pipeline section (11)；The branch road includes what is be interconnected Tie point (11b) and the second branch road (12b), are respectively arranged at first pipeline section (11) and second pipeline section (12)；Institute The bottom for stating tie point (11b) is provided with check valve (4).

10. urethral catheterization device as claimed in claim 9, it is characterised in that first pipeline section (11) and second pipeline section (12) one of which sets fluted on opposing end surface, and another one is provided with the projection installed with the groove fit, described The cooperative end part of the first pipeline section (11) is built-in with metal or magnetic part, and electromagnet is provided with second pipeline section (12), Second pipeline section (12) is also built-in with wire (121), and the electromagnet is connected by the wire (121) with external power source.