CN106618693B - Midwifery device is used in a kind of childbirth of electromechanical integration - Google Patents
Midwifery device is used in a kind of childbirth of electromechanical integration Download PDFInfo
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- CN106618693B CN106618693B CN201611064054.XA CN201611064054A CN106618693B CN 106618693 B CN106618693 B CN 106618693B CN 201611064054 A CN201611064054 A CN 201611064054A CN 106618693 B CN106618693 B CN 106618693B
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- Prior art keywords
- air
- chamber
- valve
- spool
- pouch
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
Abstract
The invention discloses a kind of electromechanical integration childbirth midwifery devices, including sucker and Buffer Unit, Buffer Unit includes the fixed cylinder being disposed side by side in air intake passage and can be relative to the rotating cylinder of fixed cylinder rotation, torsional spring is provided in rotating cylinder, the cushion hole respectively axially through fixed cylinder and rotating cylinder is provided on fixed cylinder and rotating cylinder, when exhaust fan draft is constant, torsional spring is in the raw, the cushion hole of rotating cylinder and the cushion hole sequence of fixed cylinder, when exhaust fan draft becomes larger, rotating cylinder overcomes torsional spring torsion and rotates so that the cushion hole of rotating cylinder and the cushion hole of fixed cylinder are opposite.The sucker of childbirth midwifery device can be in the case where puerpera voluntarily produces rough sledding, by attracting fetus head to assist pulling out fetus from uterus.And due to being provided with Buffer Unit, so that exhaust fan, when draft changes, the pressure value in air negative pressure area will not suddenly change, to play buffer function.
Description
Technical field
The present invention relates to a kind of medical equipment more particularly to a kind of midwifery devices.
Background technique
In puerpera's production, sometimes due to fetus figure reduces, puerpera cannot voluntarily be produced, and need to attract tire by sucker
The head of youngster, so that fetus is attracted uterus out, however the attraction of sucker in the prior art is unstable that (i.e. sucker is formed
Air negative pressure area pressure value it is unstable), when the attraction of sucker is excessive, be easy the head of fetus is caused to damage, this
It certainly will be quite dangerous, that is to say, that there is no the control of the pressure value of stable air negative pressuren zone dresses for sucker in the prior art
It sets.
Summary of the invention
For above-mentioned technical problem present in existing technology, of the invention implementing provides a kind of electromechanical integration childbirth
Use midwifery device.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of electromechanical integration childbirth midwifery device, including actuator, connect with the actuator and by the actuating
Exhaust fan, the sucker for attracting fetus head and the conduit for connecting the sucker and the exhaust fan of device driving, it is described
Sucker includes:
Plate keeping body, the first plate face are formed with the connector for connecting the conduit；
Sucker ontology, is in horn-like cylinder for first end, and the second end of the sucker ontology is fixed on the plate
In second plate face of keeping body, air intake passage is offered in the plate keeping body, the air intake passage is penetrated through from the first plate face
To the second plate face the connector so that the sucker ontology is connected to the conduit, when the exhaust fan exhausting, the suction
Air negative pressure area is formed in disk ontology in the region of the plate keeping body；
First control unit is used to control the air pressure in the air negative pressure area, to work as the air negative pressure area
When interior air is lower than predetermined value, the first control unit is air-supplied to the air negative pressure area；
Buffer Unit comprising be disposed side by side on fixed cylinder in the air intake passage and being capable of the relatively described fixed column
The rotating cylinder of body rotation is provided with torsional spring in the rotating cylinder, and the upper surface of the torsional spring is equipped with permalloy layer, described
Permalloy layer is iron-nickel alloy, wherein containing stable particle in the permalloy layer, the stable particle is carbide
Or the particle of nitride or boride, the iron-nickel alloy account for the 25% of permalloy layer body weight, the iron-nickel alloy packet
Include iron, molybdenum, manganese, cobalt, copper and mickel, mass fraction is that iron accounts for 67%, and the molybdenum accounts for 14%, and the manganese accounts for 6%, described
Cobalt accounts for 4%, and the copper accounts for 7%, and the nickel accounts for 2%, the permalloy layer with a thickness of 0.1mm, the permalloy
It also include ferrous alloy, austenitic manganese steel or cobalt-based super heat-resistant alloy in layer, on the fixed cylinder and the rotating cylinder
It is provided with respectively axially through the cushion hole of the fixed cylinder and the rotating cylinder, in which:
When the exhaust fan draft is constant, the torsional spring in the raw, the cushion hole of the rotating cylinder and institute
The cushion hole sequence for stating fixed cylinder, when the exhaust fan draft becomes larger, the rotating cylinder overcomes the torsional spring torsion
And it rotates so that the cushion hole of the rotating cylinder is opposite with the cushion hole of the fixed cylinder.
Preferably, the first control unit includes the first valve body and the first valve rod with the first spool；Described first
Offer the first valve chamber in valve body, first valve rod is arranged in first valve chamber, and first spool is by described first
Valve chamber is divided into left chamber and right chamber, and the left chamber is connected to by sprue with the air intake passage, the sprue
Air inlet is formed in the end in the axial direction of the left chamber, and the right chamber is connected to by by-pass flow road with the sprue, institute
The one end for stating the first valve rod towards the air inlet of the sprue is formed with conehead, is provided in the right chamber for pushing against
The first spring of the first valve rod is stated, is also provided on first valve body and is radially connected to the of the left chamber and outside air
One import, in which:
When first spring to the thrust of first valve rod and the indoor air pressure of the left chamber to described first
When the sum of thrust of valve rod is equal to or more than first inlet pressure, the conehead of first valve rod blocks the sprue
Air inlet, when first spring to the thrust of first valve rod and the indoor air pressure of the left chamber to first valve
When the sum of thrust of bar is less than first inlet pressure, the conehead of first valve rod far from the air inlet of the sprue,
Outside air enters the air inlet of the sprue from first import, and enters through the sprue, the air intake passage
The air negative pressure area.
Preferably, the first control unit further includes the second spool, is also provided with the second valve chamber in first valve body,
Second spool is arranged in second valve chamber, and the right chamber passes through the axis of the first pilot flow path and second valve chamber
Upward end is connected to, and second spring is additionally provided in second valve chamber, the second spring is for pushing against second valve
For core so that second spool can block first pilot flow path, first valve rod is formed with penetrated through in the axial direction
Two pilot flow paths, second pilot flow path are connected to the sprue and second valve chamber, offer on first spool
It is connected to the throttling road of the left chamber and the right chamber, in which:
When first spring to the thrust of first valve rod and the indoor air pressure of the left chamber to described first
When the sum of thrust of valve rod is less than the outside air, the outside air enters institute through the throttling road of first spool
Left chamber is stated, then pushes against second spool through first pilot flow path and enters second valve chamber, then first through described second
Pathway enters the sprue, so that the indoor air pressure of the right chamber reduces and moves to right the first spool sprue
Air inlet open.
Preferably, further include the pouch made of elastic expandable material, be filled with air in the pouch, the pouch is set
It sets in the sucker ontology, and is attached at the inner wall of the sucker ontology, the pouch, which surrounds one, can partially coat tire
The accommodating space on youngster head, the air intake passage are connected to the accommodating space, and the air negative pressure area is formed in when the capsule
Positioned at the top area on head when the bag cladding fetus head.
It preferably, further include the second control unit for controlling air pressure in the pouch, second control is single
Member includes the second valve body and third spool being fixed on the outer wall of the sucker ontology, offers third in second valve body
Valve chamber, the third spool are arranged in the third valve chamber, and one end of the third valve chamber is formed in perforation to pouch
Inflate runner, be provided in the third valve chamber for push against the third spool so that the third spool can block it is described
The third spring of runner is inflated, the part that the third valve chamber is provided with the third spring passes through pressure stabilizing runner and the pouch
Interior air communication is also provided with the second import on second valve body, and second import is for being connected to the third valve chamber
With outside air with when the air pressure of the pouch reduce when, the third spool far from it is described inflation runner air inlet,
Make the pouch to the cladding on the head of the fetus so that outside air is entered in the pouch by the inflation runner
Power increases.
Preferably, the pressure accumulation body for inflating for the pouch is installed in second import.
Preferably, the first top of the preload thrust for adjusting the second spring is additionally provided on first valve body
Silk.
Preferably, the second top of the preload thrust for adjusting the third spring is additionally provided on second valve body
Silk.
Compared with prior art, the beneficial effect of childbirth of the invention midwifery device is: the childbirth suction of midwifery device
Disk can be in the case where puerpera voluntarily produces rough sledding, by attracting fetus head to assist pulling out fetus from uterus.
And due to being provided with Buffer Unit, so that exhaust fan, when draft changes, the pressure value in air negative pressure area will not be suddenly
Variation, to play buffer function.
Detailed description of the invention
Fig. 1 is the structure of childbirth midwifery device (first control unit and the second control unit do not supplement air) of the invention
Schematic diagram；
Fig. 2 is that the structure of childbirth midwifery device of the invention (first control unit and the second control unit supplement air) is shown
It is intended to；
Fig. 3 is the enlarged view of part A in Fig. 1；
Fig. 4 is the enlarged view of part B in Fig. 2.
In figure:
100- actuator；200- exhaust fan；400- conduit；500- sucker；510- plate keeping body；511- connector；512-
Air intake passage；520- sucker ontology；530- first control unit；The first valve body of 531-；532- left chamber；533- right chamber；
The first valve rod of 534-；The first spool of 535-；The first spring of 536-；The second valve chamber of 537-；The second spool of 538-；The second bullet of 539-
Spring；The first pilot flow path of 540-；The second pilot flow path of 541-；542- sprue；543- by-pass flow road；544- throttling road；545-
One import；The first jackscrew of 546-；550- pouch；The second control unit of 560-；The second valve body of 561-；562- third valve chamber；563-
Third spool；564- third spring；565- inflates runner；566- pressure stabilizing runner；567- pressure accumulation body；The second import of 568-；569-
Second jackscrew；570- Buffer Unit；571- fixed cylinder；572- rotating cylinder；573- torsional spring；574- cushion hole；The head 600-.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.
As shown in Figures 1 to 4, embodiment of the invention discloses a kind of electromechanical integration childbirth midwifery device, the childbirths
It include actuator 100, the exhaust fan 200 for connecting with actuator 100 and being driven by actuator 100, for attracting with midwifery device
The sucker 500 and connecting sucker 500 of fetus head 600 and the conduit 400 of exhaust fan 200, sucker 500 include: that plate is kept
Body 510, the first plate face are formed with the connector 511 for connecting conduit 400；Sucker ontology 520 is first end in horn-like
Cylinder, the second end of sucker ontology 520 is fixed in the second plate face of plate keeping body 510, opens up in plate keeping body 510
There is air intake passage 512, air intake passage 512 is penetrated through to the connector of the second plate face from the first plate face so that sucker ontology 520 and conduit
400 connections form air negative pressure when 200 exhausting of exhaust fan in the region of plate keeping body 510 in sucker ontology 520
Area；First control unit 530 is used to control the air pressure in air negative pressure area, low to work as the air in air negative pressure area
When predetermined value, first control unit 530 is air-supplied to air negative pressure area.Buffer Unit 570 comprising be disposed side by side on institute
The rotating cylinder 572 stating the fixed cylinder 571 in air intake passage 512 and capable of being rotated relative to the fixed cylinder 571, described turn
It is provided with torsional spring 573 on dynamic cylinder 572, axial respectively pass through is provided on the fixed cylinder 571 and the rotating cylinder 572
Lead to the cushion hole 574 of the fixed cylinder 571 and the rotating cylinder 572, in which: when 200 draft of exhaust fan is constant,
The torsional spring 573 in the raw, the cushion hole of the cushion hole 574 of the rotating cylinder 572 and the fixed cylinder 571
574 sequences, when 200 draft of exhaust fan becomes larger, the rotating cylinder 572 overcomes 573 torsion of torsional spring and rotates
So that the cushion hole 574 of the cushion hole 574 of the rotating cylinder 572 and the fixed cylinder 571 is opposite, the upper table of the torsional spring
Face is equipped with permalloy layer, and the permalloy layer is iron-nickel alloy, wherein contain stable particle in the permalloy layer,
The stable particle is the particle of carbide or nitride or boride, and the iron-nickel alloy accounts for permalloy layer body weight
25%, the iron-nickel alloy includes iron, molybdenum, manganese, cobalt, copper and mickel, and mass fraction is that iron accounts for 67%, and the molybdenum accounts for 14%,
The manganese accounts for 6%, and the cobalt accounts for 4%, and the copper accounts for 7%, and the nickel accounts for 2%, the thickness of the permalloy layer
It also include ferrous alloy, austenitic manganese steel or cobalt-based super heat-resistant alloy in the permalloy layer for 0.1mm.
The sucker 500 of childbirth midwifery device can be in the case where puerpera voluntarily produces rough sledding, by attracting fetus head
600 and assist fetus is pulled out from uterus.And due to being provided with Buffer Unit, so that exhaust fan changes in draft
When, the pressure value in air negative pressure area will not suddenly change, to play buffer function.
The characteristics of sucker 500, is in the present invention: being made by first control unit 530 when the air in sucker 500 is negative
Air in pressure area lower than predetermined value (predetermined value be medical staff precalculate design make it possible to draw fetus and not
Air pressure value corresponding to gravitation as damage fetus head 600) when, sucker 500 from the external world introduces air and by the sky
Gas is fed to air negative pressure area so that air pressure value increases.
Should illustrate: the position in so-called " air negative pressure area " is located at when sucker 500 attracts fetus, and the one of fetal head tip
Partial region, the region are connected to exhaust fan 200 by conduit 400, and the air pressure in the region and sucker 500 are to fetus
Attraction is inversely proportional, that is to say, that and in air negative pressure area (areal pressure because exhaust fan 200 takes partial air away, air
Pressure be less than external air pressure) air pressure value it is smaller, sucker 500 is bigger to the attraction of fetus, to prevent sucker 500
It is excessive to the attraction of fetus and fetus head 600 is caused to damage, by first control unit 530 in real time to air negative pressure area
It is interior air-supplied, so that the air-stable in air negative pressure area is on the head 600 that can either attract fetus and it is unlikely to attraction
It is excessive and damage in the pressure value of fetus.
Preferably, be additionally provided on display controller 2000 the speed regulation button 2005 for adjusting 100 revolving speed of actuator with
And the corner button 2006 for controlling 3000 pivoting angle of obstetric table.
The structure that the first control unit 530 of the air pressure value in air negative pressure area can be controlled has very much, in this hair
In a bright preferred embodiment, as depicted in figs. 1 and 2, first control unit 530 is including the first valve body 531 and with first
First valve rod 534 of spool 535；The first valve chamber is offered in first valve body 531, the first valve rod 534 is arranged in the first valve chamber,
First valve chamber is divided into left chamber 532 and right chamber 533 by the first spool 535, and left chamber 532 passes through sprue 542 and air-breathing
Channel 512 is connected to, and the air inlet of sprue 542 is formed in the end in the axial direction of left chamber 532, and right chamber 533 passes through by-pass flow
Road 543 is connected to sprue 542, and one end of the first valve rod 534 towards air inlet of sprue 542 is formed with conehead, right chamber
It is provided with the first spring 536 for pushing against the first valve rod 534 in 533, it is left that radially connection is also provided on the first valve body 531
First import 545 of chamber 532 and outside air, in which:
When the first spring 536 to the air pressure in the thrust of the first valve rod 534 and left chamber 532 to the first valve rod 534
The sum of thrust when being equal to or more than the first 545 pressure of import, the conehead of the first valve rod 534 blocks the air inlet of sprue 542,
When the first spring 536 to the air pressure in the thrust of the first valve rod 534 and left chamber 532 to the thrust of the first valve rod 534 it
When with less than the first 545 pressure of import, air inlet of the conehead far from sprue 542 of the first valve rod 534, outside air is from first
Import 545 enters the air inlet of sprue 542, and enters air negative pressure area through sprue 542, air intake passage 512.
Should explain: outside air enters left chamber 532 and generate to the first spool 535 from the first import 545 centainly to be pushed away
Power F1, the first spring 536 generate certain thrust F2 to the first spool 535, and the air in air negative pressure area is through sprue 542 and side
Runner 543 enters right chamber 533, and the air pressure in the right chamber 533 is equal to the air pressure in air negative pressure area, the air
Pressure generates the thrust F3 identical and contrary with F1 as the direction F2 to the first spool 535, when the sum of F2 and F3 are equal to or greatly
When F1, the first valve rod 534 blocks sprue 542, and outside air cannot be introduced into air negative pressure area, in this way, can be by limiting the
The thrust F2 of one spring 536, (lower than the predetermined value, to fetal head when making the air pressure in air negative pressure area lower than predetermined value
The attraction in portion 600 will be excessive), the sum of F2 and F3 are less than F1, at this point, the first air inlet of the valve rod 534 far from sprue 542,
Outside air enters air negative pressure area by sprue 542, increases the pressure value in air negative pressure area, thus smaller to tire
The attraction on youngster head 600, and when pressure value is increased to predetermined value, the sum of F2 and F3 are greater than F1, the air inlet of sprue 542
It is closed again by the first valve rod 534.To make sucker 500 can either attract fetus head 600 again be unlikely to attraction it is excessive and
Damage fetus.
The movement of air inlet to make the first valve rod 534 open and close sprue 542 tends to mitigate and steady, so that empty
Air pressure in gas negative pressuren zone is unlikely to suddenly to fluctuate, and guide structure is additionally provided in first control unit 530, specifically,
First control unit 530 further includes the second spool 538, and the second valve chamber 537, the second spool 538 are also provided in the first valve body 531
It is arranged in the second valve chamber 537, right chamber 533 is connected by the end in the axial direction of the first pilot flow path 540 and the second valve chamber 537
It is logical, second spring 539 is additionally provided in the second valve chamber 537, second spring 539 is for pushing against the second spool 538 so that the second valve
Core 538 can block the first pilot flow path 540, and the first valve rod 534 is formed with the second pilot flow path 541 penetrated through in the axial direction,
Second pilot flow path 541 is connected to sprue 542 and the second valve chamber 537, and connection 532 He of left chamber is offered on the first spool 535
The throttling road 544 of right chamber 533, in which: when the first spring 536 is to the air in the thrust of the first valve rod 534 and left chamber 532
Pressure to the sum of thrust of the first valve rod 534 be less than outside air when, throttling road 544 of the outside air through the first spool 535 into
Enter left chamber 532, then pushes against the second spool 538 through the first pilot flow path 540 and enter the second valve chamber 537, then be first connected through second
Road enters sprue 542, so that the air pressure in right chamber 533 reduces and moves to right the first spool 535 sprue 542
Air inlet open.In this way, outside air passes through throttling road 544, the first guide when needing air-supplied to air negative pressure area
Runner 540, the second pilot flow path 541 enter air negative pressure area, and the first spool 535 is made to drive the first valve rod 534 slow simultaneously
Slow movement is so that sprue 542 is opened, so that the pressure in air negative pressure area be made to be slowly increased.
For effective protection fetus head 600 and and reduce to the attraction of fetus, as shown in Figs. 3-4, childbirth is filled with midwifery
Setting further includes the pouch 550 made of elastic expandable material, and air is filled in pouch 550, and pouch 550 is arranged in sucker ontology
In 520, and it is attached at the inner wall of sucker ontology 520, pouch 550 surrounds the receiving that can partially coat fetus head 600
Space, air intake passage 512 are connected to accommodating space, and air negative pressure area is formed in be located at when pouch 550 coats fetus head 600
The top area on head 600.And childbirth midwifery device further includes the second control for controlling air pressure in pouch 550
Unit 560, the second control unit 560 include the second valve body 561 and third spool being fixed on the outer wall of sucker ontology 520
563, third valve chamber 562 is offered in the second valve body 561, third spool 563 is arranged in third valve chamber 562, third valve chamber 562
One end be formed with perforation to the inflation runner 565 in pouch 550, be provided in third valve chamber 562 for pushing against third spool
563 so that third spool 563 can block the third spring 564 of inflation runner 565, and third valve chamber 562 is provided with third spring
564 part passes through the air communication in pressure stabilizing runner 566 and pouch 550, is also provided with the second import on the second valve body 561
568, the second import 568 for be connected to third valve chamber 562 and outside air with when the air pressure of pouch 550 reduce when, third
Air inlet of the spool 563 far from inflation runner 565, so that outside air is entered in pouch 550 by inflation runner 565 makes capsule
The cladding power on the head 600 of 550 pairs of fetuses of bag increases.In this way, pouch can be controlled by the gas pressure in control pouch 550
The cladding power of 550 pairs of fetus heads 600, to not cause to damage to fetus head 600 in the attraction for not increasing sucker 500
In the case where wound, it is capable of increasing that (tractive force is different from attraction, is by coating fetus to the tractive force of fetus head 600
Entire head 600 and generate, fetus head 600 will not be caused to damage, and attraction is to inhale the part on head 600
Draw, local pulling force is bigger).For example, when in pouch 550 when air is less coats bad to fetus head 600, third valve
Core 563 automatically opens, and outside air enters the amount in pouch 550 and increasing air in pouch 550, so that pouch 550 be made to fill
Play the degree that can preferably coat fetus head 600.
Preferably, the pressure accumulation body 567 for inflating for pouch 550 is installed in the second import 568.
Preferably, the first jackscrew of the preload thrust for adjusting second spring 539 is additionally provided on the first valve body 531
546。
Preferably, the second jackscrew of the preload thrust for adjusting third spring 564 is additionally provided on the second valve body 561
569。
Claims (8)
1. a kind of electromechanical integration childbirth midwifery device, including actuator, it connect with the actuator and by the actuator
The conduit of the exhaust fan of driving, the sucker for attracting fetus head and the connection sucker and the exhaust fan, feature
It is, the sucker includes:
Plate keeping body, the first plate face are formed with the connector for connecting the conduit；
Sucker ontology, is in horn-like cylinder for first end, and the second end of the sucker ontology is fixed on the plate and keeps
In second plate face of body, air intake passage is offered in the plate keeping body, the air intake passage is penetrated through from the first plate face to
The connectors of two plate faces is so that the sucker ontology is connected to the conduit, when the exhaust fan exhausting, the sucker sheet
Air negative pressure area is formed in the region of the plate keeping body in vivo；
First control unit is used to control the air pressure in the air negative pressure area, when in the air negative pressure area
When air is lower than predetermined value, the first control unit is air-supplied to the air negative pressure area；
Buffer Unit comprising be disposed side by side on fixed cylinder in the air intake passage and can the relatively described fixed cylinder turn
Dynamic rotating cylinder, torsional spring is provided in the rotating cylinder, and the upper surface of the torsional spring is equipped with permalloy layer, the perm
Alloy-layer contains iron-nickel alloy, wherein also containing stable particle in the permalloy layer, the stable particle is carbide
Or the particle of nitride or boride, the iron-nickel alloy account for the 25% of permalloy layer body weight, the iron-nickel alloy packet
Include iron, molybdenum, manganese, cobalt, copper and mickel, mass fraction is that iron accounts for 67%, and the molybdenum accounts for 14%, and the manganese accounts for 6%, described
Cobalt accounts for 4%, and the copper accounts for 7%, and the nickel accounts for 2%, the permalloy layer with a thickness of 0.1mm, the permalloy
It also include ferrous alloy, austenitic manganese steel or cobalt-based super heat-resistant alloy in layer, on the fixed cylinder and the rotating cylinder
It is provided with respectively axially through the cushion hole of the fixed cylinder and the rotating cylinder, in which:
When the exhaust fan draft is constant, the torsional spring in the raw, the cushion hole of the rotating cylinder with it is described solid
The cushion hole sequence of fixed column body, when the exhaust fan draft becomes larger, the rotating cylinder overcomes the torsional spring torsion and turns
It moves so that the cushion hole of the rotating cylinder is opposite with the cushion hole of the fixed cylinder.
2. childbirth midwifery device according to claim 1, which is characterized in that the first control unit includes the first valve
Body and the first valve rod with the first spool；The first valve chamber is offered in first valve body, first valve rod is arranged in institute
It states in the first valve chamber, first valve chamber is divided into left chamber and right chamber by first spool, and the left chamber passes through master
Runner is connected to the air intake passage, and the air inlet of the sprue is formed in the end in the axial direction of the left chamber, described
Right chamber is connected to by by-pass flow road with the sprue, and one end of air inlet of first valve rod towards the sprue is formed
There is conehead, the first spring for pushing against first valve rod is provided in the right chamber, is also opened up on first valve body
There is the first import for being radially connected to the left chamber and outside air, in which:
When first spring to the thrust of first valve rod and the indoor air pressure of the left chamber to first valve rod
The sum of thrust when being equal to or more than first inlet pressure, the conehead of first valve rod blocks the air inlet of the sprue
Mouthful, when first spring to the thrust of first valve rod and the indoor air pressure of the left chamber to first valve rod
When the sum of thrust is less than first inlet pressure, the conehead of first valve rod is extraneous far from the air inlet of the sprue
Air enters the air inlet of the sprue from first import, and through described in the sprue, air intake passage entrance
Air negative pressure area.
3. childbirth midwifery device according to claim 2, which is characterized in that the first control unit further includes second
Spool is also provided with the second valve chamber in first valve body, and second spool is arranged in second valve chamber, the right chamber
Room is connected to by the first pilot flow path with the end in the axial direction of second valve chamber, is additionally provided with second in second valve chamber
Spring, the second spring is for pushing against second spool so that second spool can block first pilot flow
Road, first valve rod are formed with the second pilot flow path penetrated through in the axial direction, and second pilot flow path is connected to the mainstream
Road and second valve chamber offer the throttling road of the connection left chamber and the right chamber on first spool, in which:
When first spring to the thrust of first valve rod and the indoor air pressure of the left chamber to first valve rod
The sum of thrust when being less than the outside air, the outside air enters the left side through the throttling road of first spool
Chamber, then push against second spool through first pilot flow path and enter second valve chamber, then be first connected through described second
Road enters the sprue so that the indoor air pressure of the right chamber reduce and make the first spool move to right by sprue into
Port is opened.
4. childbirth midwifery device according to claim 1, which is characterized in that further include made of elastic expandable material
Pouch, the pouch is interior to be filled with air, and the pouch is arranged in the sucker ontology, and is attached at the sucker ontology
Inner wall, the pouch surround the accommodating space that can partially coat fetus head, and the air intake passage and the receiving are empty
Between be connected to, the air negative pressure area is formed in the top area when the pouch coats the fetus head positioned at head.
5. childbirth midwifery device according to claim 4, which is characterized in that further include hollow for controlling the pouch
Second control unit of atmospheric pressure, second control unit include the second valve body being fixed on the outer wall of the sucker ontology
With third spool, third valve chamber is offered in second valve body, the third spool is arranged in the third valve chamber, described
One end of third valve chamber is formed with perforation to the inflation runner in pouch, is provided in the third valve chamber for pushing against described the
For three spools so that the third spool can block the third spring of the inflation runner, the third valve chamber is provided with described the
The part of three springs by the air communication in pressure stabilizing runner and the pouch, be also provided on second valve body second into
Mouthful, second import for be connected to the third valve chamber and outside air with when the air pressure of the pouch reduce when, institute
Air inlet of the third spool far from the inflation runner is stated, so that outside air is entered in the pouch by the inflation runner
And increase the pouch to the cladding power on the head of the fetus.
6. it is according to claim 5 childbirth use midwifery device, which is characterized in that be installed in second import for for
The pressure accumulation body of the pouch inflation.
7. childbirth midwifery device according to claim 3, which is characterized in that be additionally provided with and be used on first valve body
Adjust the first jackscrew of the preload thrust of the second spring.
8. childbirth midwifery device according to claim 5, which is characterized in that be additionally provided with and be used on second valve body
Adjust the second jackscrew of the preload thrust of the third spring.
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| CN201611064054.XA CN106618693B (en) | 2016-11-28 | 2016-11-28 | Midwifery device is used in a kind of childbirth of electromechanical integration |
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| CN201611064054.XA CN106618693B (en) | 2016-11-28 | 2016-11-28 | Midwifery device is used in a kind of childbirth of electromechanical integration |
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| CN106618693B true CN106618693B (en) | 2019-06-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109381320A (en) * | 2017-08-03 | 2019-02-26 | 天津三五科技有限公司 | A kind of electromechanical integration electromechanics care monitoring device |
| CN107669321A (en) * | 2017-11-26 | 2018-02-09 | 雷蕾 | A kind of medical obstetrics and gynecology department carrying suction type obstetric apparatus |
| CN111920498B (en) * | 2018-02-05 | 2021-07-02 | 安晓娜 | Pressure-adjustable obstetric apparatus |
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| CN101754721A (en) * | 2007-07-20 | 2010-06-23 | 技术设备开发有限公司 | Device for extracting elements from a cavity |
| KR20110101825A (en) * | 2010-03-10 | 2011-09-16 | 이남훈 | Easy labor helper |
| CN202505455U (en) * | 2012-03-30 | 2012-10-31 | 王福玲 | Water bag labor induction type negative pressure fetal head extractor |
| CN104825213A (en) * | 2015-03-26 | 2015-08-12 | 徐相婷 | Obstetric sucker midwifery device |
| CN205514753U (en) * | 2016-03-29 | 2016-08-31 | 邱大红 | Delivery aid device for gynaecology and obstetrics |
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| US6872212B2 (en) * | 2000-11-30 | 2005-03-29 | Victor L. Vines | Vacuum extraction monitor with attachment for hand pump |
| US6468284B1 (en) * | 2001-05-04 | 2002-10-22 | Clinical Innovation Associates, Inc. | Method and apparatus for vaccum assisted fetal extraction |
| US20050015098A1 (en) * | 2003-07-14 | 2005-01-20 | Vines Victor L. | Vacuum extraction business method |
| DK176329B1 (en) * | 2004-09-09 | 2007-08-13 | Lina Medical Aps | Obsthetic vacuum cup |
| US20120095476A1 (en) * | 2008-02-13 | 2012-04-19 | Michael G. Ross | Obstetrical vacuum extractor with over-traction release |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754721A (en) * | 2007-07-20 | 2010-06-23 | 技术设备开发有限公司 | Device for extracting elements from a cavity |
| KR20110101825A (en) * | 2010-03-10 | 2011-09-16 | 이남훈 | Easy labor helper |
| CN202505455U (en) * | 2012-03-30 | 2012-10-31 | 王福玲 | Water bag labor induction type negative pressure fetal head extractor |
| CN104825213A (en) * | 2015-03-26 | 2015-08-12 | 徐相婷 | Obstetric sucker midwifery device |
| CN205514753U (en) * | 2016-03-29 | 2016-08-31 | 邱大红 | Delivery aid device for gynaecology and obstetrics |
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Inventor after: Li Bing Inventor after: Zhou Long Inventor before: Zhou Long |
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Effective date of registration: 20190531 Address after: Room 308, 3rd floor, Office Building of Wenshang People's Hospital, No. 1 Dehui Road, Wenshang County, Jining City, Shandong Province Applicant after: Li Bing Address before: 300000 Tianjin Hexi District Huanhu West Road No. 7 221 Applicant before: Tianjin double Technology Co., Ltd. |
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