CN108339163A - Urethral catheterization device for preventing bacterium from adhering to - Google Patents
Urethral catheterization device for preventing bacterium from adhering to Download PDFInfo
- Publication number
- CN108339163A CN108339163A CN201810114272.2A CN201810114272A CN108339163A CN 108339163 A CN108339163 A CN 108339163A CN 201810114272 A CN201810114272 A CN 201810114272A CN 108339163 A CN108339163 A CN 108339163A
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- China
- Prior art keywords
- catheter
- flexible hose
- urethral catheterization
- adhering
- vibration unit
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
- A61M1/85—Drainage tubes; Aspiration tips with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants
-
- A61M1/0058—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1078—Urinary tract
- A61M2210/1085—Bladder
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1078—Urinary tract
- A61M2210/1089—Urethra
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The present invention relates to the field of medical instrument technology, provide a kind of urethral catheterization device for preventing bacterium from adhering to, which includes catheter, flexible hose, the first manifold, vibration unit, fixed cell, liquid-supply unit and control unit；The top of the catheter offers urine filling mouth, bottom end is connected to first manifold；The flexible hose is plugged in the catheter, and the top of the flexible hose is connect with fixed cell, bottom end is connected to the liquid-supply unit, and the length direction of flexible hose described in the flexible hose upper edge offers multiple first micropores；The vibration unit is arranged on the fixed cell, and the fixed cell is used to the vibration unit being fastened on the specified location in the catheter, and described control unit is electrically connected with the vibration unit and the liquid-supply unit respectively.The present invention effectively can hinder planktonic bacteria to adhere on catheter, and bacterium is inhibited to be grown on catheter, prevent the formation of bacterial biof iotalm on catheter from the root cause.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of urethral catheterization devices for preventing bacterium from adhering to.
Background technology
With the progress of medical technology, more and more treatment means are needed by intracorporeal indwelling medical instrument.For example, gas
The medical catheters such as pipe conduit, arterio-venous catheter, stomach tube, peritoneum dialysis catheter, catheter.Although these medical catheters solve very much
Clinical problem, but since it needs prolonged stay in human body is easy to grow bacterium, so cause it is obstinate, be difficult to
The bacterial biof iotalm infection removed with general antibiotic.Wherein, bacterial biof iotalm refers to that planktonic bacteria is attached to inertia or activity
After material surface, constantly accumulation, growth and division is ultimately formed with Extracellular polymers and the coated height tissue of matrix net
Change, the microorganism film property polymer of systematization.
Currently, the bacterium infection that medical catheter causes has become the major issue of clinical nosocomial infection, can not only lead
Length of patient stay is caused to extend, medical expense increases, and also results in the rising of disease hair rate and case fatality rate.And patient's indwelling is led
After urinary catheter or the urinary system infection contamination occurred in catheter 48h is pulled out, has become most common hospital acquired infections.According to
Correlation study shows that China uses in the patient of catheter or urinary tract instrument, and there are about 20%~60% patient, there are urinary tracts
Infection, accounts for the 40% of hospital acquired infections, wherein 80% urinary tract infections is related with catheter.In addition, repeated multiple times urethral catheterization
Patient in there are about 50% will produce bacteruria disease.Therefore, have become with the treatment of the relevant urinary tract infections of catheter and monitoring
One of big event of hospital care.
Currently, hospital's generally use following manner causes urinary tract infections to prevent catheter：One, unnecessary urethral catheterization is limited
Pipe indwelling, self retaining catheter must have clear indication.Once patient, which is not required to self retaining catheter, to pull out as early as possible, to reduce conduit phase
Close the risk of urinary tract infections.Two, the material or surface properties for improving catheter change its hydrophobicity or create inherent antibacterial
Active function groups, and then can effectively delay the formation of biomembrane, prevent or at least delay the morbidity of bacteruria.Three, using black Lip river
The antibiotic such as tropine, Cranberry product, povidone iodine, flamazine, antimicrobial ointment are prevented.But aforesaid way
It can not still effectively prevent the biomembrane on catheter to generate, that is, prevent attachment of the planktonic bacteria on catheter.
Invention content
The object of the present invention is to provide a kind of urethral catheterization device for being used to prevent bacterium from adhering to, effectively to avoid planktonic bacteria attached
It on catheter.
To achieve the above object, the present invention provides a kind of urethral catheterization device for preventing bacterium from adhering to, the urethral catheterization devices
Including catheter, flexible hose, the first manifold, vibration unit, fixed cell, liquid-supply unit and control unit；The catheter
Top offer urine filling mouth, bottom end is connected to first manifold；The flexible hose is plugged in the catheter, described
The top of flexible hose is connect with the fixed cell, bottom end is connected to the liquid-supply unit, described in the flexible hose upper edge
The length direction of flexible hose offers multiple first micropores；The vibration unit is arranged on the fixed cell, described solid
Order member is used to the vibration unit being fastened on the specified location in the catheter, described control unit respectively with it is described
Vibration unit and liquid-supply unit electrical connection.
Wherein, urine detection unit, the urine detection unit and described control unit are embedded on the fixed cell
Electrical connection.
Wherein, further include the second manifold, the catheter is equipped with utricule, second manifold by drainage tube with it is described
Utricule is connected to.
Wherein, the material of the vibration unit is piezoelectric ceramics.
Wherein, the fixed cell includes resilient bladder, and the vibration unit is set in the middle part of the resilient bladder, institute
The inside for stating resilient bladder offers and axially penetrates through in the channel of the resilient bladder, and the import in the channel is located at described into urine
Mouthful lower section, outlet be connected to the flexible hose, the circumferential direction of the resilient bladder offers multiple to be connected to the channel
Second micropore.
Wherein, the fixed cell includes telescopic rod, telescopic drive part and pushes against part, and the lower slide of the telescopic rod is inserted
It is located in the flexible hose, top is circumferentially with multiple abutting parts；Each abutting part includes cushion block, the first company
Bar and the second connecting rod above first connecting rod, the first end of the first connecting rod are slided and rotatable with the telescopic rod
Connection, second end and the cushion block bottom surface be rotatablely connected, the first end and second end of the second connecting rod respectively with the pad
The bottom surface of block and the rotation connection of the top of the telescopic rod, the top surface of the cushion block is connected with the vibration unit；It is described flexible
Actuator is for driving the telescopic rod to be moved up and down along the length direction of the flexible hose, the diameter of the telescopic rod and institute
The diameter for stating flexible hose is adapted.
Wherein, the length direction of telescopic rod described in the telescopic rod upper edge is equipped with sliding slot, the first end of the first connecting rod
Hinged with the top of sliding block, the sliding block is slidably embedded in the sliding slot.
Wherein, the telescopic drive part is the flexible draw bar being plugged in the flexible hose, the one of the flexible draw bar
End is connect with the telescopic rod, the other end is stuck in first manifold.
Wherein, the fixing piece includes lifting actuator, fixed cover and the fixing bolt being connect with the flexible hose, institute
The top movable for stating fixing bolt is covered with the fixed cover, and the vibration unit is set in the lower part of the fixing bolt；It is described solid
The circumferential direction for determining the top of bolt offers multiple grooves, and positioning pin is inserted in the groove, and the top of the positioning pin, which is supported, to be located at
On the inner wall of the fixed cover, between bottom end and the groove compression be provided with spring；The circumferential direction of the fixed cover offer with
The one-to-one location hole of positioning pin, the location hole are located at the lower section of the corresponding positioning pin；The lifting driving
Part is used to drive the fixed cover to be moved up and down along the axial direction of the fixing bolt.
Wherein, the lifting actuator is the lifting cylinder being arranged between the vibration unit and the fixed cover, institute
Lifting cylinder is stated to be electrically connected with described control unit.
The configuration of the present invention is simple is easily installed, when there is urine outflow in catheter, by being opened in flexible hose circumferential direction
Multiple first micropores, by liquid-supply unit be pressed into flexible hose cleaning solution be sprayed onto on the inner wall of catheter, so that it may will remain in
Urine on catheter is rinsed well, to can suppress the growth of bacterium；When anuria liquid stream goes out in catheter, pass through setting
Vibration unit on flexible hose drives the tube wall vibration of catheter, so that it may and hinder planktonic bacteria to be attached on catheter, from
And can effectively prevent the formation of bacterial biof iotalm from the root cause, while also avoid using drug resistance caused by antibiotic and
Surface drug coating impregnates the medicament slow release that catheter generates and uncontrollable problem.In addition, the top due to catheter is inserted
It is located in bladder, the catheter at this is not only more also easy to produce bacterial biof iotalm compared to other positions, but also is difficult to prevent, therefore
Vibration unit is supported to be located at by the urethral catheterization device by using fixed cell to be closed on the urethral catheterization inside pipe wall at urine filling mouth, so that it may be aligned
It is vibrated in time in intravesical catheter, planktonic bacteria is avoided to adhere to.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of urethral catheterization device for preventing bacterium from adhering in the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of fixed cell in the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of fixed cell in the embodiment of the present invention 2；
Fig. 4 is the structural schematic diagram that part is pushed against in the embodiment of the present invention 2；
Fig. 5 is the structural schematic diagram of fixed cell in the embodiment of the present invention 3；
Fig. 6 is the structural schematic diagram of fixing bolt in the embodiment of the present invention 3.
Reference numeral：
1, catheter；1-1, urine filling mouth；2, flexible hose；2-1, the first micropore；3, the first manifold；4, control unit；5、
Liquid-supply unit；6, the second manifold；7, resilient bladder；7-1, channel；7-2, the second micropore；8, piezoelectric ceramic ring；9, connector；
10, telescopic rod；11-1, first connecting rod；11-2, second connecting rod；11-3, cushion block；12, piezoelectric ceramic piece；13, fixing bolt；13-1、
Groove；13-2, positioning pin；13-3, spring；14, fixed cover；14-1, location hole；15, piezoelectric ceramic tube.
Specific implementation mode
To keep the purpose, technical scheme and advantage of invention clearer, below in conjunction with the attached drawing in invention, in invention
Technical solution be explicitly described, it is clear that described embodiment is invention a part of the embodiment, rather than whole realities
Apply example.It is obtained by those of ordinary skill in the art without making creative efforts based on the embodiment in invention
Every other embodiment belongs to the range of invention protection.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.Term "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside", "upper", "lower" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description of the present invention and simplification of the description, spy must be had by not indicating or implying the indicated sensor or element
Fixed orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
It should be noted that unless otherwise clearly defined and limited, term " connection " shall be understood in a broad sense, for example, can
To be to be fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected.For the ordinary skill in the art, tool of the above-mentioned term in invention can be understood with concrete condition
Body meaning.
Embodiment 1
As shown in Figure 1, an embodiment of the present invention provides a kind of urethral catheterization device for preventing bacterium from adhering to, the urethral catheterization device
Including catheter 1, flexible hose 2, the first manifold 3, vibration unit, fixed cell, liquid-supply unit 5 and control unit 4；Catheter
1 top offers urine filling mouth 1-1, bottom end is connected to the first manifold 3；Flexible hose 2 is plugged in catheter 1, flexible hose 2
Top connect with fixed cell, bottom end is connected to liquid-supply unit 5, the length direction of 2 upper edge flexible hose 2 of flexible hose opens up
There are multiple first micropore 2-1；Vibration unit is arranged on fixed cell, and fixed cell is used to vibration unit being fastened on catheter
Specified location in 1, that is to say, that fixed cell is used to vibration unit being fixed on the specified location in catheter 1, and
It is set to be adjacent to the inner wall of catheter 1；Control unit 4 is electrically connected with vibration unit and liquid-supply unit 5 respectively.
In use, be first inserted on the top of catheter 1 in bladder by the urethra of patient, it then will by fixed cell
Vibration unit is fixed on the specified location of catheter 1, so that the outer wall of vibration unit is sticked on the inner wall of catheter 1.By
This, when the urine in bladder flows into urine filling mouth 1-1, and is flowed out along catheter 1, control unit 4 can start liquid-supply unit
5, the cleaning solution being stored in advance in liquid-supply unit 5 is pressed into flexible hose 2, cleaning solution is flowed up along flexible hose 2
In the process, can constantly cleaning solution be ejected on the inner wall of catheter 1 along the first micropore 2-1 on road.Due to the first micropore 2-1
It is small-sized, therefore when cleaning solution is sprayed from the first micropore 2-1, the jet velocity of cleaning solution is very fast, that is to say, that from the
The cleaning solution that one micropore 2-1 sprays has certain impact force, to which the urine remained on 1 inner wall of catheter can be rushed directly
It washes, and then inhibits the growth of bacterium.And when anuria liquid stream goes out in catheter 1, control unit 4 can close feed flow list
Member 5, Vibration on Start-up unit, since vibration unit is close to the inner wall of catheter 1, when vibration unit vibrates, the pipe of catheter 1
Wall can vibrate therewith, to which planktonic bacteria also can not just be attached on the inner wall of catheter 1, and then also can not just form bacterium life
Object film, to can effectively prevent the formation of bacterial biof iotalm from the root cause.
Further, in order to control the keying of liquid-supply unit 5 and vibration unit in time, urine is embedded on fixed cell
Liquid detection unit, urine detection unit are electrically connected with control unit 4.As a result, when urine detection unit detects urine, control
Unit 4 just starts liquid-supply unit 5；When urine detection unit can't detect urine, control unit 4 can be turned off liquid-supply unit 5,
Vibration on Start-up unit simultaneously.
In addition, for the ease of fixed catheter 1, which further includes the second manifold 6, and catheter 1 is equipped with utricule,
Second manifold 6 is connected to by drainage tube with utricule.In use, after utricule is stretched into bladder, filled into utricule by the second manifold 6
Fluid injection body, as liquid is on the increase in utricule, the volume of utricule also increases therewith, utricule can be stuck in bladder, to
Catheter 1 connected to it is just can avoid to slide from bladder.
As shown in Fig. 2, fixed cell includes resilient bladder 7, vibration unit is set in the middle part of resilient bladder 7, elastic ball
The inside of capsule 7 offers the channel 7-1 axially penetrated through in resilient bladder 7, the import of channel 7-1 be located at the lower section of urine filling mouth 1-1,
Outlet is connected to flexible hose 2, and the circumferential direction of resilient bladder 7 offers multiple the second micropore 7-2 being connected to channel 7-1.Wherein,
Vibration unit is preferably piezoelectric ceramic ring 8, i.e., the material of vibration unit is piezoelectric ceramics.
Since resilient bladder 7 has certain elasticity, resilient bladder 7 is pushed to by catheter 1 by flexible hose 2
Behind interior designated position, resilient bladder 7 will be stuck in herein, to which the piezoelectric ceramic ring 8 being set in resilient bladder 7 can be tight
Paste the inner wall of catheter 1.After the urine in bladder flows into urine filling mouth 1-1, urine can pass through the channel 7- in resilient bladder 7
1 and second micropore 7-2 flow into catheter 1.At this point, urine detection unit detects that urine, control unit 4 can start feed flow
The cleaning solution being stored in advance in liquid-supply unit 5 is pressed into flexible hose 2 by unit 5, the cleaning solution flowed in flexible hose 2
It can be constantly ejected on the inner wall of catheter 1 by the first micropore 2-1, channel 7-1 and the second micropore 7-2, in catheter 1
Wall is cleaned, and at the same time, a part of cleaning solution can also enter the bladder of patient by urine filling mouth 1-1, to the bladder of patient
It is rinsed.When anuria liquid stream goes out in catheter 1, control unit 4 then closes liquid-supply unit 5, starts piezoelectric ceramic ring 8, pressure
The electric signal that control unit 4 inputs just is converted to the mechanical oscillation of itself by electroceramics ring 8, drives the catheter 1 being bonded with it
Tube wall synchronous vibration.Wherein, piezoelectric ceramic ring 8 can use different moulds according to the frequency for the electric signal that control unit 4 inputs
Formula is vibrated, for example, that thickness mode, vertical pattern, torsional mode, beam mode, longitudinal direction-can be used is curved for piezoelectric ceramic ring 8
Bent pattern, bending-beam mode, radial direction-vertical pattern, longitudinal direction-torsional mode or bending-torsional mode are vibrated.
Preferably, the shape of resilient bladder 7 can be, but not limited to be spheroidal, elliposoidal or fusiformis, as long as can ensure
Piezoelectric ceramic ring 8 is fastened on the specified location in catheter 1.
Further, the quantity of piezoelectric ceramic ring 8 is multiple, short transverse of the multiple piezoelectric ceramic rings 8 along resilient bladder 7
Interval setting.
Embodiment 2
As shown in Figure 3 and Figure 4, the structure and principle and reality of the urethral catheterization device for preventing bacterium attachment in the present embodiment
Apply that example 1 is identical, and this embodiment is not repeated.
The difference is that fixed cell includes telescopic rod 10, telescopic drive part and abutting part, telescopic rod in the present embodiment
10 lower slide is plugged in flexible hose 2, top is circumferentially with multiple abutting parts；Each part that pushes against includes cushion block 11-
3, the first connecting rod 11-1 and second connecting rod 11-2 above first connecting rod 11-1, the first end of first connecting rod 11-1 with stretch
Contracting bar 10 slide simultaneously be rotatably connected, the bottom surface of second end and cushion block 11-3 are rotatablely connected, the first end of second connecting rod 11-2 and
Second end is rotatablely connected with the bottom surface of cushion block 11-3 and the top of telescopic rod 10 respectively, and the top surface of cushion block 11-3 is connected with vibration list
Member；Telescopic drive part for driving telescopic rod 10 to be moved up and down along the length direction of flexible hose 2, the diameter of telescopic rod 10 with it is soft
Property hose 2 diameter be adapted, that is to say, that the diameter of telescopic rod 10 is slightly less than the diameter of flexible hose 2.Wherein, vibration is single
Member is preferably piezoelectric ceramic piece 12.
Behind designated position telescopic rod 10 being pushed in catheter 1 by flexible hose 2 as a result, so that it may using flexible
Actuator driving telescopic rod 10 moves down, and as telescopic rod 10 constantly stretches into flexible hose 2, abutting part can also move closer to soft
Property hose 2.Since the diameter of telescopic rod 10 is slightly less than the diameter of flexible hose 2, when the first end of first connecting rod 11-1 arrives
When at up to the port of flexible hose 2, i.e., telescopic rod 10 is located at the length in 2 outside of flexible hose equal to first connecting rod 11-1 and second
When the summation of the length of connecting rod 11-2, the first end of first connecting rod 11-1 will not enter flexible hose 2 with telescopic rod 10, but support
On the edge of 2 port of flexible hose.As telescopic rod 10 continues to stretch into flexible hose 2, telescopic rod 10 is located at outside flexible hose 2
The length of side will gradually be less than first connecting rod 11-1 and second connecting rod 11-2 length summation, the second of first connecting rod 11-1
End will gradually tilt, and then the first end of second connecting rod 11-2 is driven to tilt, at the same the second end of second connecting rod 11-2 then with
Relative telescopic bar 10 top rotation, to which the piezoelectric ceramic piece 12 that is connect with cushion block 11-3 will gradually approach catheter 1
Inner wall, until being adjacent to the inner wall of catheter 1.
Preferably, the length direction of 10 upper edge telescopic rod 10 of telescopic rod be equipped with sliding slot, the first end of first connecting rod 11-1 with
The top of sliding block is hinged, and sliding block is slidably embedded in sliding slot.As a result, when telescopic rod 10 is located at the length in 2 outside of flexible hose
When the summation of length of the degree equal to first connecting rod 11-1 and second connecting rod 11-2, sliding block will be against the side of 2 port of flexible hose
On edge, as telescopic rod 10 continues to move down, sliding block will along sliding slot upward sliding, at the same time, the of first connecting rod 11-1
Two ends just start to tilt, i.e., first connecting rod 11-1 is tilted upwards by first connecting rod 11-1 first ends to second end.
Preferably, telescopic drive part is the flexible draw bar being plugged in flexible hose 2, one end of flexible draw bar and telescopic rod
10 connections, the other end are stuck in the first manifold 3.In use, medical worker need to only pull downward on flexible link, so that it may which driving is flexible
Bar 10 moves down.Further, for the ease of operation, the length direction of flexible draw bar upper edge flexible draw bar is equipped with scale.
Embodiment 3
As shown in Figure 5 and Figure 6, the structure and principle and reality of the urethral catheterization device for preventing bacterium attachment in the present embodiment
Apply that example 1 is identical, and this embodiment is not repeated.
The difference is that fixing piece includes lifting actuator, fixed cover 14 and connects with flexible hose 2 in the present embodiment
The top movable of the fixing bolt 13 connect, fixing bolt 13 is covered with fixed cover 14, and vibration unit is set in the lower part of fixing bolt 13；Gu
The circumferential direction for determining the top of bolt 13 offers multiple groove 13-1, and positioning pin 13-2 is inserted in groove 13-1, positioning pin 13-2's
Top is supported on the inner wall for being located at and fixing cover 14, compression is provided with spring 13-3 between bottom end and groove 13-1；The week of fixed cover 14
It is located under corresponding positioning pin 13-2 with the one-to-one location hole 14-1 of positioning pin 13-2, location hole 14-1 to offering
Side；Lifting actuator is used to drive fixed cover to be moved up and down along the axial direction of fixing bolt 13.Wherein, vibration unit is preferably piezoelectricity pottery
Porcelain tube 15.
Behind designated position fixing bolt 13 being pushed in catheter 1 by flexible hose 2 as a result, so that it may utilize lifting
The fixed cover of actuator driving is relatively fixed bolt 13 and moves up, and is supported due to the top of positioning pin 13-2 and is located at the inner wall for fixing cover 14
Compression is provided with spring 13-3 between upper, bottom end and groove 13-1, therefore when the location hole 14-1 on fixed cover 14 is moved to pair
When height where the positioning pin 13-2 answered, i.e. location hole 14-1 and when positioning pin 13-2 coaxial, the top of positioning pin 13-2 is just
It can pop up from location hole 14-1, and be against on the inner wall of catheter 1 under the action of spring 13-3 elastic force.As it can be seen that by more
Fixing bolt 13 can be stuck in the specified location in guide pipe by a positioning pin 13-2, to the piezoelectricity being set on fixing bolt 13
Ceramic tube 15 can be close to the inner wall of catheter 1.
Preferably, lifting actuator is the lifting cylinder being arranged between vibration unit and fixed cover, lifting cylinder and control
Unit 4 processed is electrically connected.
Finally it should be noted that：Above example is only to illustrate the technical solution of invention, rather than its limitations；Although ginseng
Invention is described in detail according to previous embodiment, it will be understood by those of ordinary skill in the art that：It still can be right
Technical solution recorded in foregoing embodiments is modified or equivalent replacement of some of the technical features；And this
A little modification or replacements, the spirit and scope for each embodiment technical solution of invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. it is a kind of for prevent bacterium adhere to urethral catheterization device, which is characterized in that including catheter, flexible hose, the first manifold,
Vibration unit, fixed cell, liquid-supply unit and control unit；The top of the catheter offer urine filling mouth, bottom end with it is described
First manifold is connected to；The flexible hose is plugged in the catheter, the top of the flexible hose and the fixed cell
Connection, bottom end are connected to the liquid-supply unit, and the length direction of flexible hose described in the flexible hose upper edge offers multiple
First micropore；The vibration unit is arranged on the fixed cell, and the fixed cell is for setting the vibration unit card
Specified location in the catheter, described control unit are electrically connected with the vibration unit and the liquid-supply unit respectively
It connects.
2. the urethral catheterization device according to claim 1 for preventing bacterium from adhering to, which is characterized in that on the fixed cell
It is embedded with urine detection unit, the urine detection unit is electrically connected with described control unit.
3. the urethral catheterization device according to claim 1 for preventing bacterium from adhering to, which is characterized in that further include the second discrimination
Pipe, the catheter are equipped with utricule, and second manifold is connected to by drainage tube with the utricule.
4. the urethral catheterization device according to claim 1 for preventing bacterium from adhering to, which is characterized in that the vibration unit
Material is piezoelectric ceramics.
5. the urethral catheterization device according to any one of claims 1 to 4 for preventing bacterium from adhering to, which is characterized in that described
Fixed cell includes resilient bladder, and the vibration unit is set in the middle part of the resilient bladder, the inside of the resilient bladder
Offer and axially penetrate through in the channel of the resilient bladder, the import in the channel be located at the lower section of the urine filling mouth, outlet with
The flexible hose connection, the circumferential direction of the resilient bladder offer multiple the second micropores being connected to the channel.
6. the urethral catheterization device according to any one of claims 1 to 4 for preventing bacterium from adhering to, which is characterized in that described
Fixed cell includes telescopic rod, telescopic drive part and pushes against part, and the lower slide of the telescopic rod is plugged in the flexible hose
In, top be circumferentially with multiple abutting parts；Each abutting part includes cushion block, first connecting rod and connects positioned at first
Second connecting rod above bar, the first end of the first connecting rod and the telescopic rod slide and be rotatably connected, second end and institute
State the bottom surface rotation connection of cushion block, the first end and second end of the second connecting rod respectively with the bottom surface of the cushion block and described stretch
The top of contracting bar is rotatablely connected, and the top surface of the cushion block is connected with the vibration unit；The telescopic drive part is for driving institute
The length direction that telescopic rod is stated along the flexible hose moves up and down, the diameter of the diameter of the telescopic rod and the flexible hose
It is adapted.
7. the urethral catheterization device according to claim 6 for preventing bacterium from adhering to, which is characterized in that the telescopic rod upper edge
The length direction of the telescopic rod is equipped with sliding slot, and the first end of the first connecting rod and the top of sliding block are hinged, and the sliding block can
Sliding is embedded in the sliding slot.
8. the urethral catheterization device according to claim 6 for preventing bacterium from adhering to, which is characterized in that the telescopic drive part
For the flexible draw bar being plugged in the flexible hose, one end of the flexible draw bar is connect with the telescopic rod, the other end is visited
For first manifold.
9. the urethral catheterization device according to any one of claims 1 to 4 for preventing bacterium from adhering to, which is characterized in that described
Fixing piece includes lifting actuator, fixed cover and the fixing bolt being connect with the flexible hose, and the top of the fixing bolt is lived
Dynamic to be covered with the fixed cover, the vibration unit is set in the lower part of the fixing bolt；The circumferential direction on the top of the fixing bolt
Multiple grooves are offered, positioning pin is inserted in the groove, the inner wall for being located at the fixed cover is supported on the top of the positioning pin
Compression is provided with spring between upper, bottom end and the groove；The circumferential direction of the fixed cover offers a pair of with the positioning pin one
The location hole answered, the location hole are located at the lower section of the corresponding positioning pin；The lifting actuator is described solid for driving
Fixed cover is moved up and down along the axial direction of the fixing bolt.
10. the urethral catheterization device according to claim 9 for preventing bacterium from adhering to, which is characterized in that the lifting driving
Part is the lifting cylinder being arranged between the vibration unit and the fixed cover, the lifting cylinder and described control unit electricity
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114272.2A CN108339163B (en) | 2018-02-05 | 2018-02-05 | Urinary catheterization device for preventing bacteria from adhering |
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| CN108339163B CN108339163B (en) | 2023-07-14 |
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| CN109331319A (en) * | 2018-10-11 | 2019-02-15 | 北京航空航天大学 | Bacterioistatic device and antibacterial conduit for conduit |
| CN110812664A (en) * | 2019-11-14 | 2020-02-21 | 北京航空航天大学 | Antibacterial device for catheter and antibacterial catheter |
| CN112402714A (en) * | 2020-11-18 | 2021-02-26 | 上海市第一康复医院(上海市杨浦区老年医院) | Ultrasonic automatic bladder irrigation system and method |
| DE102022115028B3 (en) | 2022-06-15 | 2023-10-12 | Friedrich-Alexander-Universität Erlangen-Nürnberg, Körperschaft des öffentlichen Rechts | Implant or catheter |
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| CN110812664A (en) * | 2019-11-14 | 2020-02-21 | 北京航空航天大学 | Antibacterial device for catheter and antibacterial catheter |
| CN112402714A (en) * | 2020-11-18 | 2021-02-26 | 上海市第一康复医院(上海市杨浦区老年医院) | Ultrasonic automatic bladder irrigation system and method |
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| EP4292636A1 (en) * | 2022-06-15 | 2023-12-20 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Implant or catheter |
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|---|---|
| CN108339163B (en) | 2023-07-14 |
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