CN106975109A - Controllable amniotic fluid drainage system - Google Patents
Controllable amniotic fluid drainage system Download PDFInfo
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- CN106975109A CN106975109A CN201710079493.6A CN201710079493A CN106975109A CN 106975109 A CN106975109 A CN 106975109A CN 201710079493 A CN201710079493 A CN 201710079493A CN 106975109 A CN106975109 A CN 106975109A
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- amniotic fluid
- flexible glue
- elastic flexible
- turning wheel
- glue pipe
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- A61M1/0001—
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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
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0494—Obstetrical, amniotic fluid
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a kind of controllable amniotic fluid drainage system, including the sting device being sequentially connected by drainage tube, amniotic fluid volume control device and amniotic fluid collection device, the amniotic fluid volume control device includes a box body and the Elastic flexible glue pipe being arranged in the box body, the both sides up and down of the Elastic flexible glue pipe are symmetrically provided with some turning wheels to for promoting the liquid one-way flowing in Elastic flexible glue pipe, 46, which are equipped with, on each turning wheel stirs tooth, the motor of adjustable speed is provided with the box body and by motor-driven drive gear, drive gear is coaxially disposed correspondingly with turning wheel.The present invention is easy to operate, and amniotic fluid drainage flow can carry out stable regulation and control, with very high practical value.
Description
Technical field
The present invention relates to technical field of medical instruments is belonged to, it is related to a kind of obstetrics' operation special equipment, and in particular to a kind of
Controllable amniotic fluid drainage system.
Background technology
Hydramnion is obstetrics' FAQs, easily causes gravid uterus increase, causes uterus tension force too high, is easily occurred early
Production, premature rupture of fetal membranes, postpartum haemorrhage etc. so that perinatal mortality rate increases, in order to avoid the adverse effect caused by hydramnion,
Obstertrician can bleed off the excessive amniotic fluid in part, i.e., so-called amniotic fluid drainage, reduce the generation of badness come-off.It is big in the prior art
It is many that negative pressure drainage is implemented using negative pressure bottle.But, negative pressure bottle operation inconvenience, and due in drainage process negative pressure occur change and
The regulation and control for causing amniotic fluid flow or flow velocity to be stablized, easily have a negative impact to pregnant woman and fetus.The opposing party
Face, amniocentesis need to be made in amniotic fluid drainage of indwelling needle pin, but amniotic cavity is that longitudinal grin flesh and striated muscle are interlaced
Structure, therefore be not easy to be punctured retained needle puncture, by soft indwelling needle catheter retaining in amniotic cavity；Exist simultaneously
Due to normal physiological activity, belly can be moved, and soft indwelling needle conduit has the problem of skidding off amniotic cavity.Publication date
For on January 14th, 2015, Publication No. CN 104274870A patent document is disclosed to be filled for a kind of medically negative pressure drainage
Put, including main body, first passage, second channel, supporting plate, hold out against head and floating type negative pressure indicateing arm；The outside of main body is set respectively
Vertical scale line and oblique graduation mark are equipped with, for observing the amount of liquid in main body, oblique graduation mark is located at bottom part body position；Main body
Including upper and lower part, top is welded with lower seal；First passage is arranged on supporting plate and held out against inside head, and second channel is set
Holding out against inside head, second channel is connected with first passage；The lower port of second channel is strip, and lower port, which is located at, holds out against head
Top top；It is top to be shaped as triangle；Floating type negative pressure indicateing arm and supporting plate, which coordinate, to be fixed, and is arranged on body side,
For show ontology internal pressure situation.But the negative pressure bottle equally exists operation inconvenience, and the regulation that flow can not be stablized
The problem of with control, easily have a negative impact to pregnant woman and fetus.
The content of the invention
The purpose of the present invention is to operate inconvenience, and the tune that flow can not be stablized to solve the negative pressure drainage of prior art
Section and control, the problem of easily having a negative impact to pregnant woman and fetus there is provided one kind it is easy to operate, flow can carry out stablizing tune
Section and the controllable amniotic fluid drainage system of control.
The concrete technical scheme that the present invention is used to achieve the above object is that a kind of controllable amniotic fluid drainage system is wrapped
Include the sting device being sequentially connected by drainage tube, amniotic fluid volume control device and amniotic fluid collection device, the amniotic fluid flow control
Device processed includes a box body and the Elastic flexible glue pipe being arranged in the box body, and the both sides up and down of the Elastic flexible glue pipe are symmetrically
Provided with some turning wheels to for promoting the liquid one-way flowing in Elastic flexible glue pipe, 4-6 are equipped with each turning wheel
Tooth is stirred, the facewidth of tooth is stirred（Stir the axial width of tooth）More than the half of Elastic flexible glue pipe outer perimeter, Elastic flexible glue pipe
Tooth of stirring on the two neighboring turning wheel of homonymy is shifted to install, and the motor of adjustable speed is provided with the box body and is driven by motor
Drive gear, the structure of the drive gear is identical and is coaxially disposed correspondingly with turning wheel, positioned at Elastic flexible glue pipe
The wherein two neighboring drive gear of side is by idler gear engaged transmission, both sides are relative above and below Elastic flexible glue pipe two
Drive gear intermeshing transmission, when motor drives turning wheel rotation by drive gear, both sides are relative above and below Elastic flexible glue pipe
Turning wheel on the minimum spacing stirred between tooth its tooth top be 1.4-1.8 times of Elastic flexible glue thickness of pipe wall.
The controllable amniotic fluid drainage system of the present invention completes the drainage discharge of amniotic fluid using mechanical device, utilizes Elastic flexible glue
The symmetrically arranged turning wheel in both sides up and down of pipe, is flowed, diverse location by the liquid in unidirectionally extruded promotion Elastic flexible glue pipe
Turning wheel on shift to install stir tooth constitute the relay way of propelling so that realize by amniotic cavity amniotic fluid discharge.This hair
Drainage flow or flow velocity can be adjusted for the bright rotating speed for only needing regulation motor, and the flow after regulation is in steady state,
The problem of solving the regulation and control that flow in the prior art can not be stablized, realizes the regulation and control of the stabilization of flow
System.Here the facewidth of tooth is stirred（Stir the axial width of tooth）More than the half of Elastic flexible glue pipe outer perimeter, allow for and work as
When Elastic flexible glue pipe is mutually touched in flat form by the tube wall for stirring both sides above and below after tooth extruding, the maximum of Elastic flexible glue pipe
Width is the half of Elastic flexible glue pipe outer perimeter, and the facewidth for stirring tooth is more than the half of Elastic flexible glue pipe outer perimeter, that is, stirs
The facewidth of tooth is more than the Breadth Maximum of flat form Elastic flexible glue pipe, it can be ensured that Elastic flexible glue pipe is at a time closed,
So as to prevent that, when the Elastic flexible glue pipe in downstream is squeezed, the liquid in Elastic flexible glue pipe flows backwards.Elasticity is soft simultaneously
The minimum spacing stirred between tooth its tooth top above and below sebific duct on the relative turning wheel in both sides is the 1.4- of Elastic flexible glue thickness of pipe wall
Above and below 1.8 times, i.e. Elastic flexible glue pipe on the turning wheel of both sides stir tooth its tooth top it is relative when, both sides are stirred above and below Elastic flexible glue pipe
On wheel its gear tip clearance of tooth is stirred away from being slightly less than twice of Elastic flexible glue thickness of pipe wall, so ensure that Elastic flexible glue pipe is in closed
State.Because Elastic flexible glue pipe is compressible structure, although therefore stirring its gear tip clearance of tooth away from less than elasticity on the turning wheel of both sides
Nominal thickness when flexible rubber hose is crushed, but not hinder remaining in operation for turning wheel.Although the side of Elastic flexible glue pipe is reclined
On a certain fixed pan, and turning wheel is set in the opposite side of Elastic flexible glue pipe（That is the unilateral setting of Elastic flexible glue pipe）Also can
Realize similar effect, but the contact surface of unilateral turning wheel when setting turning wheel and Elastic flexible glue pipe is big, time of contact is long, elasticity
The unilateral of flexible rubber hose deforms big and quick abrasion, causes Elastic flexible glue pipe service life significantly to shorten；It is simultaneously unilateral that turning wheel is set
When recover slow due to the resilience of Elastic flexible glue pipe, therefore to stir effect also poor for the liquid in Elastic flexible glue pipe, and uses bilateral to dial
Driving wheel can effectively solve the above problems.The present invention solves the negative pressure drainage operation inconvenience of prior art, and flow can not be carried out
Stable regulation and control, the problem of easily having a negative impact to pregnant woman and fetus, the present invention is easy to operate, and flow can be carried out
Stable regulation and control, with very high practical value.
Preferably, turning wheel is respectively 4-6 pairs, the structure of all turning wheels is identical, in the length side of Elastic flexible glue pipe
Dislocation angle and dislocation direction upwards between spaced set and two neighboring turning wheel is identical, positioned at Elastic flexible glue pipe two ends
Its angle that misplaces of the turning wheel in portion is equal to the angle of the two neighboring central angle stirred corresponding to tooth.Between two neighboring turning wheel
Dislocation angle and dislocation direction it is identical, can make to stir the tooth form stirred of formation relay by Elastic flexible glue pipe on turning wheel
Interior liquid is stirred to a direction；And its angle that misplaces of the turning wheel at two ends is equal to two neighboring stir corresponding to tooth end to end
The angle of central angle, then when two ends end to end turning wheel its stir tooth and be close to Elastic flexible glue pipe when, the turning wheel at two ends end to end
Between Elastic flexible glue pipe in form an independent liquid segment, and with the rotation of turning wheel, this section of liquid, which can be followed, to be stirred
The rotation of wheel and synchronizing moving.
Preferably, stir tooth crest top land be arc surface, the center of circle of the arc surface on the central axis of turning wheel,
Central angle corresponding to the arc length of arc surface is 6-12 degree.It is the circular arc centered on the axis of turning wheel to stir the crest top land of tooth
Face（That is arc surface and turning wheel is coaxial）, when such turning wheel is rotated in certain angle, both sides above and below Elastic flexible glue pipe
The spacing stirred between tooth its tooth top on relative turning wheel keeps minimum value constant, can so extend Elastic flexible glue at this
The off-period of pipe, so as to be conducive to preventing when the Elastic flexible glue pipe in downstream is squeezed, the liquid in Elastic flexible glue pipe
Flow backwards.
Preferably, sting device includes puncture needle, the leading section of puncture needle, which is provided with undergauge syringe needle, puncture needle, is provided with pin
Core, the rearward end connection needle core handle of nook closing member；The periphery of puncture needle is arranged with conduit, and the front end of conduit is provided with to be adapted to undergauge syringe needle
Internal diameter contraction flow region, the needle point of undergauge needle tip, which stretches out to be additionally provided with the leading section of conduit, the outer peripheral face of catheter proximal end, easily to be inserted
Circular conical surface and anticreep step, the rear end of conduit is connected with drainage tube.The present invention is provided with undergauge syringe needle in the leading section of puncture needle, leads
The front end of pipe is provided with the internal diameter contraction flow region being adapted to undergauge syringe needle, and undergauge syringe needle coordinates for conduit to be brought into internal diameter contraction flow region
Amniotic cavity；On the other hand, the present invention is provided with easily slotting circular conical surface and anticreep step on the conduit of puncture needle, and easily slotting circular conical surface is used for
Guiding catheter enters amniotic cavity, and anticreep step prevents that the conduit into amniotic cavity from deviating from, and so can both ensure to wear when puncturing
Be retained in thoroughly and by soft needle catheter in amniotic cavity, but the application solutions withdraw of the needle and conduit by anticreep step stop without
Easily skid off, it is simple to operate time saving, prevent from damaging fetus, it is safe, while substantially mitigating pregnant woman's pain and pressure, reduce doctor
There is the problem of easily sliding out amniotic cavity in operation difficulty, the indwelling needle conduit for solving prior art.
Preferably, the side wall in catheter proximal end portion is provided with through hole, the outer wall of conduit is provided with depth indicating graduation.Through hole
Drainage work can be continued to complete when the main opening of catheter proximal end is blocked, and scale is set on conduit, can show that conduit enters
Depth in amniotic cavity, plays indicative function.
Preferably, amniotic fluid collection device is receiving flask, receiving flask is provided with amniotic fluid volume measurement scale, and receiving flask passes through
Pipe close puncture needle is connected with drainage tube.Set amniotic fluid volume measurement scale to clearly show that amniotic fluid volume, conveniently realize drainage
Overall control.
Preferably, amniotic fluid volume control device and and amniotic fluid collection device between be additionally provided with drainage observation device, it is described
Drainage observation device includes the transparent vessel of an enclosed construction, and the top and bottom of transparent vessel are respectively equipped with inlet with going out
Liquid mouthful, the center of top of transparent vessel is provided with the minim pipette connected with inlet.Drainage observation device is used for the stream for observing amniotic fluid
Amount, conveniently realizes flow control.
Preferably, adjusting circuit provided with motor speed in box body, motor speed adjusting knob is arranged on the outer wall of box body
On.Motor speed regulation can be carried out in several ways, be only a kind of selection by rotational speed regulation circuit, can generally be selected
The motor speed adjusting method such as frequency control, motor speed regulation is not further stated as the routine techniques present invention, due to
Stir wheel speed relatively slow, reducing gear can also be set between motor and drive gear, by motor speed adjusting knob
Being arranged on the outer wall of box body can be in order to operating.
Preferably, being coated with lubricating fluid on the outer wall of Elastic flexible glue pipe.Lubricating fluid, which can be reduced, stirs tooth in elastic soft
Friction between sebific duct, improves the service life of Elastic flexible glue pipe.
The beneficial effects of the invention are as follows it efficiently solves the negative pressure drainage operation inconvenience of prior art, and flow can not
The regulation and control stablized, the problem of easily having a negative impact to pregnant woman and fetus, easy to operate, amniotic fluid drainage of the invention
Flow can carry out stable regulation and control, with very high practical value.
Brief description of the drawings
Fig. 1 is a kind of structural representation of controllable amniotic fluid drainage system of the present invention；
Fig. 2 is a kind of side structure schematic view of amniotic fluid volume control device of the present invention；
Fig. 3 is a kind of side view arrangement architecture schematic diagram of amniotic fluid volume control device turning wheel of the present invention；
Fig. 4 is a kind of side view arrangement architecture schematic diagram that amniotic fluid volume control device of the present invention drives tooth driving wheel；
Fig. 5 is a kind of structural representation of sting device of the present invention；
Fig. 6 is a kind of structural representation of turning wheel of the present invention；
Fig. 7 is a kind of structural representation of sting device leading section of the present invention；
Fig. 8 is a kind of structural representation of sting device puncture needle leading section of the present invention；
Fig. 9 is a kind of structural representation in sting device catheter proximal end portion of the present invention；
Turning wheel rotation process schematic diagram when Figure 10-Figure 14 is amniotic fluid volume control device work of the present invention.
In figure：1. drainage tube, 2. sting devices, 3. amniotic fluid volume control devices, 4. amniotic fluid collection devices, 5. box bodys, 6.
Elastic flexible glue pipe, 7. turning wheels, 8. stir tooth, 9. motors, 10. drive gears, 11. idler gears, 12. crest top lands, 13. punctures
Pin, 14. undergauge syringe needles, 15. nook closing members, 16. needle core handles, 17. conduits, 18. internal diameter contraction flow regions, 19. easily slotting circular conical surfaces, 20. anticreeps
Step, 21. through holes, 22. pipe close puncture needles, 23. drainages observation device, 24. minim pipettes, 25. motor speed adjusting knobs.
Embodiment
The embodiment of the present invention is further described below by embodiment, and with reference to accompanying drawing.
Embodiment 1
In the embodiment 1 shown in Fig. 1, a kind of controllable amniotic fluid drainage system, including the puncture being sequentially connected by drainage tube 1
Device 2（See Fig. 5）, amniotic fluid volume control device 3（See Fig. 2）And amniotic fluid collection device 4, the amniotic fluid volume control device includes
One box body 5 and the Elastic flexible glue pipe 6 being arranged in the box body, the two ends of Elastic flexible glue pipe are respectively by being arranged on front and rear sides
Pipe joint connection drainage tube on box body；The both sides up and down of the Elastic flexible glue pipe are symmetrically used to provided with 5 Duis promote elasticity soft
The turning wheel 7 of liquid one-way flowing in sebific duct（See Fig. 3）, the structure of all turning wheels is identical, in the length of Elastic flexible glue pipe
5 are equipped with equidistant and tightly nearly setting, each turning wheel stir tooth 8, structure and the ordinary gear class of turning wheel on direction
Seemingly, the crest top land for stirring tooth is provided with arc-shaped transition structure, and the facewidth for stirring tooth is more than the half of Elastic flexible glue pipe outer perimeter, this reality
The Elastic flexible glue pipe external diameter for applying example is 7 millimeters, and wall thickness is 2 millimeters, and the facewidth for stirring tooth is 12 millimeters；Elastic flexible glue pipe homonymy
Tooth of stirring on two neighboring turning wheel is shifted to install, and dislocation angle and dislocation direction phase between two neighboring turning wheel
Together, the dislocation angle of the present embodiment for 18 degree, i.e. downstream turning wheel relative to adjacent upstream side turning wheel in turning wheel
18 degree of rotation direction upper deflecting；It is equal to positioned at the turning wheel at Elastic flexible glue pipe both ends its angle that misplaces and two neighboring stirs tooth
The angle of corresponding central angle, the angle is 72 degree in the present embodiment.Motor 9 in the box body provided with adjustable speed and by
Motor-driven drive gear 10, the structure of the drive gear is identical and is coaxially disposed correspondingly with turning wheel, is located at
The two neighboring drive gear of Elastic flexible glue pipe wherein side is by the engaged transmission of idler gear 11, two above and below Elastic flexible glue pipe
The relative two drive gears intermeshing transmission in side（See Fig. 4）, its rotation side of drive gear positioned at Elastic flexible glue pipe side
To identical, its rotation direction of the drive gear of both sides is opposite above and below Elastic flexible glue pipe；Provided with motor speed regulation in gear box body
Circuit（It is not drawn into figure）, the motor speed regulation circuit is frequency variant speed regulating circuit, is provided with and subtracts between motor and drive gear
Fast mechanism（It is not drawn into figure）, motor speed adjusting knob 25 is arranged on the outer wall of box body.Motor is driven by drive gear
When turning wheel is rotated, the minimum spacing stirred between tooth its tooth top above and below Elastic flexible glue pipe on the relative turning wheel in both sides is bullet
1.5 times of property flexible glue thickness of pipe wall（It is 3 millimeters in the present embodiment）.
Sting device includes puncture needle 13, and the leading section of puncture needle is provided with undergauge syringe needle 14（See Fig. 8）, it is provided with puncture needle
Nook closing member 15, the rearward end connection needle core handle 16 of nook closing member（See Fig. 5）；The periphery of puncture needle is arranged with conduit 17, puncture needle and nook closing member
It is made up of steel material, the conduit is made up of medical plastic, the front end of conduit is provided with the internal diameter being adapted to undergauge syringe needle and shunk
Portion 18, the needle point of undergauge needle tip stretches out the leading section of conduit（See Fig. 7）, it is additionally provided with the outer peripheral face of catheter proximal end and easily inserts circle
The conical surface 19 and anticreep step 20, the rear end of conduit is connected with drainage tube.
Amniotic fluid collection device is receiving flask, and receiving flask is provided with amniotic fluid volume measurement scale, and receiving flask is punctured by pipe close
Pin 22 is connected with drainage tube.Amniotic fluid volume control device and and amniotic fluid collection device between be additionally provided with drainage observation device 23, institute
Stating drainage observation device includes the transparent vessel of enclosed construction, the top and bottom of transparent vessel be respectively equipped with inlet with
Liquid outlet, the center of top of transparent vessel is provided with the minim pipette 24 connected with inlet.
Embodiment 2
In example 2, the crest top land 12 for stirring tooth is arc surface（See Fig. 6）, the center of circle of the arc surface is at the center of turning wheel
On axis（That is arc surface and turning wheel is coaxial）, the central angle corresponding to the arc length of arc surface is 8 degree.The conduit of embodiment 2
The side wall of leading section is provided with through hole 21（See Fig. 9）, the outer wall of conduit is provided with depth indicating graduation（It is not drawn into figure）, elasticity
Lubricating fluid is coated with the outer wall of flexible rubber hose, remaining and embodiment 1 are identical.
Turning wheel rotation process is shown as shown in Figure 10-Figure 14 in figure during amniotic fluid volume control device work of the present invention
Turning wheel stirs tooth in a mobility status for stirring Elastic flexible glue liquid in pipe in the cycle, and wherein circle represents liquid, circle
Arrow on circle represents the flow direction of liquid, and the arrow of turning wheel periphery represents the rotation direction of turning wheel, and one of them is dialled
Dynamic tooth is used as position mark provided with radial direction arrow.
Amniotic fluid volume control device is first closed, motor speed adjusting knob is placed in minimum position, point of puncture is accurately positioned,
Punctured into together in amniotic cavity by puncture needle guiding catheter, hold needle core handle and extract nook closing member, there is amniotic fluid to overflow explanation and puncture into
Work(, can now extract puncture needle, by catheter retaining in amniotic cavity, while closing puncture hole, open amniotic fluid flow control dress
Put, slow rotary electric machine rotational speed regulation knob, now the air in drainage tube, which is extracted, produces certain negative pressure（It can also pass through
Receiving flask applies negative pressure to drainage tube, for example, extract the air in receiving flask out and produce negative pressure）, the amniotic fluid in amniotic cavity, which enters, to be drawn
Flow tube, until amniotic fluid drippage occurs in the minim pipette that drainage is observed on device, the speed regulation motor rotating speed dripped according to amniotic fluid is adjusted
Saving knob controls flow to reasonable value, and the scale on receiving flask can show the collecting amount of amniotic fluid, be that completion is drawn during to desired value
Flow work.
In addition to the implementation, in the scope disclosed in claims of the present invention and specification, skill of the invention
Art feature or technical data can be reselected and combined, so as to constitute new embodiment, these are all art technologies
Personnel need not carry out that creative work is i.e. achievable, therefore the embodiment that these present invention are not described in also should be regarded as this
The specific embodiment of invention and within protection scope of the present invention.
Claims (8)
1. a kind of controllable amniotic fluid drainage system, it is characterised in that：Including passing through drainage tube（1）The sting device being sequentially connected
（2）, amniotic fluid volume control device（3）And amniotic fluid collection device（4）, the amniotic fluid volume control device include a box body（5）And
It is arranged on the Elastic flexible glue pipe in the box body（6）, the both sides up and down of the Elastic flexible glue pipe symmetrically provided with it is some to for
Promote the turning wheel of the liquid one-way flowing in Elastic flexible glue pipe（7）, 4-6 are equipped with each turning wheel and stirs tooth（8）, dial
The facewidth of dynamic tooth, which is more than on the half of Elastic flexible glue pipe outer perimeter, the two neighboring turning wheel of Elastic flexible glue pipe homonymy, stirs tooth
Shift to install, the motor of adjustable speed is provided with the box body（9）And by motor-driven drive gear（10）, the drive gear
Structure it is identical and be coaxially disposed correspondingly with turning wheel, the two neighboring sliding tooth positioned at Elastic flexible glue pipe wherein side
Wheel passes through idler gear（11）Two drive gears intermeshing that both sides are relative above and below engaged transmission, Elastic flexible glue pipe is passed
It is dynamic, when motor drives turning wheel rotation by drive gear, tooth is stirred on the relative turning wheel in both sides above and below Elastic flexible glue pipe
Minimum spacing between its tooth top is 1.4-1.8 times of Elastic flexible glue thickness of pipe wall.
2. controllable amniotic fluid drainage system according to claim 1, it is characterised in that：Described turning wheel is respectively 4-6
Right, the structure of all turning wheels is identical, on the length direction of Elastic flexible glue pipe spaced set and two neighboring turning wheel it
Between dislocation angle and dislocation direction it is identical, positioned at Elastic flexible glue pipe both ends turning wheel its misplace angle be equal to it is two neighboring
Stir the angle of the central angle corresponding to tooth.
3. controllable amniotic fluid drainage system according to claim 1, it is characterised in that：The crest top land for stirring tooth（12）
For arc surface, the center of circle of the arc surface is on the central axis of turning wheel, and the central angle corresponding to the arc length of arc surface is 6-
12 degree.
4. controllable amniotic fluid drainage system according to claim 1, it is characterised in that：The sting device includes puncture needle
（13）, the leading section of puncture needle is provided with undergauge syringe needle（14）, puncture needle is interior to be provided with nook closing member（15）, the rearward end connection nook closing member of nook closing member
Handle（16）；The periphery of puncture needle is arranged with conduit（17）, the front end of conduit is provided with the internal diameter contraction flow region being adapted to undergauge syringe needle
（18）, the needle point of undergauge needle tip, which stretches out, is additionally provided with easily slotting circular conical surface on the leading section of conduit, the outer peripheral face of catheter proximal end
（19）And anticreep step（20）, the rear end of conduit is connected with drainage tube.
5. controllable amniotic fluid drainage system according to claim 4, it is characterised in that：On the side wall in the catheter proximal end portion
Provided with through hole（21）, the outer wall of conduit is provided with depth indicating graduation.
6. controllable amniotic fluid drainage system according to claim 1, it is characterised in that：The amniotic fluid collection device is collection
Bottle, receiving flask is provided with amniotic fluid volume measurement scale, and receiving flask passes through pipe close puncture needle（22）It is connected with drainage tube.
7. controllable amniotic fluid drainage system according to claim 1, it is characterised in that：Amniotic fluid volume control device and and sheep
Drainage observation device is additionally provided between water collecting device（23）, device is observed in the drainage includes the transparent appearance of an enclosed construction
Device, the top and bottom of transparent vessel are respectively equipped with inlet and liquid outlet, and the center of top of transparent vessel is provided with and inlet
The minim pipette of connection（24）.
8. the controllable amniotic fluid drainage system according to claim any one of 1-7, it is characterised in that：It is provided with the box body
Motor speed adjusts circuit, motor speed adjusting knob（25）It is arranged on the outer wall of box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079493.6A CN106975109A (en) | 2017-02-14 | 2017-02-14 | Controllable amniotic fluid drainage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079493.6A CN106975109A (en) | 2017-02-14 | 2017-02-14 | Controllable amniotic fluid drainage system |
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| CN106975109A true CN106975109A (en) | 2017-07-25 |
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| CN201710079493.6A Pending CN106975109A (en) | 2017-02-14 | 2017-02-14 | Controllable amniotic fluid drainage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109247977A (en) * | 2018-08-29 | 2019-01-22 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | A kind of puncture drainage needle of adjustable flow velocity |
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| CN109247977B (en) * | 2018-08-29 | 2020-06-09 | 温州医科大学附属第一医院 | Puncture drainage needle of adjustable velocity of flow |
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Application publication date: 20170725 |