CN107049446A - Vacuum extractor - Google Patents
Vacuum extractor Download PDFInfo
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- CN107049446A CN107049446A CN201710471886.1A CN201710471886A CN107049446A CN 107049446 A CN107049446 A CN 107049446A CN 201710471886 A CN201710471886 A CN 201710471886A CN 107049446 A CN107049446 A CN 107049446A
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- valve
- negative pressure
- conically shaped
- connecting cylinder
- exhaust nozzle
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- 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
- A61B17/44—Obstetrical forceps
- A61B17/442—Obstetrical forceps without pivotal connections, e.g. using vacuum
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- 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
- A61B17/44—Obstetrical forceps
- A61B2017/445—Obstetrical forceps with force indication
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- Gynecology & Obstetrics (AREA)
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- Pregnancy & Childbirth (AREA)
- Heart & Thoracic Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
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Abstract
The invention discloses vacuum extractor, midwifery instrument field is related generally to.Conically shaped including metal, the wide end of conically shaped is provided with many steel wire keels for being fixed to arc, the inboard on steel wire keel top is provided with the silica-gel bead for rolling and being connected with it, the outer side covers of steel wire keel have negative pressure cover, the top side of negative pressure cover is provided with sealing strip, the top side of sealing strip curves inwardly, the pellosil that negative pressure cover and sealing strip are formed in one, the narrow end of conically shaped is provided with connecting cylinder, connecting cylinder inwall is provided with the internal valve cavity of Non-return air valve, connection drum outer wall is provided with the air exhaust nozzle for being used for being evacuated and ventilate, and air exhaust nozzle is connected with internal valve cavity.The beneficial effects of the present invention are：It can significantly reduce tire bag and arch upward size, and significantly improve fetal head scalp blister, scratch, lacerated wound, subcutaneous and subperiosteal hematoma, the problems such as intracranial hemorrhage, effective midwifery is given a birth and protects foetus health.
Description
Technical field
The present invention relates to midwifery instrument field, specifically vacuum extractor.
Background technology
Vacuum extraction of fetal head is conventional operation to assist delivery, is that attractor is attached on fetal head using negative pressure, by appropriate
Negative pressure and traction, reach that assistance is given birth to the purpose of fetus.Therefore, it is the core weight of this ovarian cystectomy to the grasp of negative pressure and traction
Point.If negative pressure used is too small, attraction is weak, and vacuum extractor is easily slipped, if negative pressure is excessive, or pressure distribution is uneven
It is even, or area is too small causes local pressure excessive for pressure, can all trigger fetal head injured.In addition, the control of traction angle is also particularly
Key, lead is improper to easily cause attractor gas leakage slippage, or the pull-in time long aggravates the problems such as fetal head is injured.
Clinically, conventional vacuum extractor includes trumpet type vacuum extractor, cup-shaped vacuum extractor, cattle horn shape tire
Head attractor etc., the attractor of these structures is on Clinical practice, and security is all undesirable.Local obvious tire will be produced
Bag, thereby increases and it is possible to fetal head scalp blister, scratch, lacerated wound, subcutaneous and subperiosteal hematoma, the serious problems such as intracranial hemorrhage,
Need improvement badly.
The content of the invention
It is an object of the invention to provide vacuum extractor, it can significantly reduce tire bag and arch upward size, and significantly improve tire
Head's severe edema due to hypofunction of the spleen blister, scratch, lacerated wound, subcutaneous and subperiosteal hematoma, the problems such as intracranial hemorrhage, effective midwifery is given a birth and protects fetus
Health.
The present invention to achieve the above object, is achieved through the following technical solutions：
Vacuum extractor, includes the conically shaped of metal, the wide end of the conically shaped is provided with many steel wires for being fixed to arc
Keel, the week side of boss annular array of the steel wire keel along conically shaped opening, the top of the steel wire keel is provided with domed convex
Rise, raised be provided with segment-shaped and the inside cavity of opening, the cavity is provided with the silica-gel bead adaptable with it, described
Silica bead can be rolled in cavity, and the outer side covers of the steel wire keel have negative pressure cover, and the top side of the negative pressure cover is provided with sealing
Side, the top side of the sealing strip curves inwardly, the pellosil that the negative pressure cover and sealing strip are formed in one, the conically shaped
Narrow end is provided with connecting cylinder, and the connecting cylinder is connected for cylindrical metal pipe barrel and with conically shaped, the inwall of the connecting cylinder
Internal valve cavity is provided with, the internal valve cavity is provided with the bleeding point of taper, and the bleeding point is provided with the taper that can be sealed against
The first spring is additionally provided with plug, the internal valve cavity, one end of first spring and the bottom surface of conical plug are connected, first bullet
The other end of spring and the inwall of connecting cylinder are connected, and the side wall of the connecting cylinder is provided with the air exhaust nozzle being connected with internal valve cavity, institute
Air exhaust nozzle is stated to be provided with coupled logical tracheae, the air exhaust nozzle provided with from-inner-to-outer for the side wall of tubular mouth and air exhaust nozzle
Connecting rod, threaded block, the pull bar being sequentially connected, the outer end of the pull bar are provided with handle, and the inner of the pull bar penetrates air exhaust nozzle, institute
Threaded block is stated for cylindrical pivot block and its week side of boss is provided with the first external screw thread, the air exhaust nozzle is set on the inwall of outer end portion
There is the first internal thread being engaged with the first external screw thread, the inner of the connecting rod is fixedly connected with conical plug.
The one end of the connecting cylinder away from conically shaped is provided with spherical shell, and the spherical shell is connected with connecting cylinder, the ball
Slot is distributed with side of the shape shell away from connecting cylinder, and the outside of the spherical shell is provided with the segment-shaped rotating mask adaptable with it,
The spherical shell is spacing and is rotationally connected with rotating mask, the outside of the rotating mask between two parties vertical provided with perpendicular connection
Pipe, the standpipe is provided with traction handle, and the one end of the standpipe away from rotating mask is provided with control handle, the control handle provided with control
Chamber processed, the control chamber, standpipe are connected with rotating mask, and second spring, the outer end of the control chamber are provided with the control chamber
Provided with swivel nut, provided with the control-rod being slidably connected with it in the standpipe, the inner and the slot activity grafting, institute of the control-rod
The outer end for stating vertical rod passes swivel nut and provided with draw ring, and the control-rod is provided with spring base, and the spring base is arranged at control chamber
It is interior, and the inner of the second spring is connected with spring base, the control-rod is provided with the second outer spiral shell for being threadedly coupled with swivel nut
Second external screw thread described in when in line, the control-rod insertion slot is located in control chamber.
The negative pressure ventilation device for being matched therewith using, the negative pressure ventilation device are removably connected with the air exhaust nozzle
Including connecting tube, three-way air valve and ball, the connecting tube is rubber hose, and one end of the connecting tube connects provided with plastics
Head, the end removable seal connection of the adapter of plastic and tracheae, the other end of the connecting tube is connected with three-way air valve, institute
Three-way air valve is stated for T-shaped structure, the three-way air valve includes extraction valve, air outlet valve and communicating valve, one end of the communicating valve
It is connected with ball, the one end of the communicating valve away from ball is connected with extraction valve, the extraction valve and connecting tube are remote
One end from adapter of plastic is connected, provided with pumping leather cup at outer end opening of the extraction valve away from communicating valve, and the pumping
Valve is connected by being evacuated leather cup with connecting tube, and the pumping leather cup is oval silica gel ball cover and is arranged in extraction valve, institute
State pumping leather cup and be provided with slot, one end of the vent valve and outside are to connecting, the other end and communicating valve of the vent valve
Connection, and the junction of the vent valve and communicating valve is provided with deflation leather cup, the deflation leather cup is oval silica gel ball cover
And be arranged in vent valve, the vent valve is connected by deflation leather cup with communicating valve, and the deflation leather cup is provided with slot.
Neck of the end of the tracheae provided with annular, the adapter of plastic is the working of plastics of annular, the adapter of plastic
Internal diameter and tracheae external diameter be adapted, and the adapter of plastic inwall be provided with a ring shape card article, the card article with
Neck is snapped connection, and rubber weather strip is provided with the opening of the adapter of plastic.
The inwall of the conically shaped is provided with baroceptor.
Prior art is contrasted, the beneficial effects of the present invention are：
The vacuum extractor of the present invention, used all vacuum extractors, can expand absorption model compared with prior art
Enclose, significantly improve the contact wear to skin, dispersed suction accurately controls negative pressure, is arched upward greatly so as to significantly reduce tire bag
It is small, and significantly improve fetal head scalp blister, scratch, lacerated wound, subcutaneous and subperiosteal hematoma, the problems such as intracranial hemorrhage, effectively help
Production childbirth simultaneously protects foetus health.Operating procedure and difficulty can be substantially reduced in operation simultaneously, make apparatus uses letter
Single, convenient, quick, a doctor can complete, and midwifery efficiency is accelerated in help.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the schematic diagram of spherical shell-connecting cylinder-conically shaped-steel-wire carcass of the present invention.
Accompanying drawing 3 is the A portions enlarged drawing of accompanying drawing 1 of the present invention.
Accompanying drawing 4 is the B portions enlarged drawing of accompanying drawing 1 of the present invention.
Accompanying drawing 5 is the C portions enlarged drawing of accompanying drawing 1 of the present invention.
Accompanying drawing 6 is the pumping schematic diagram of three-way air valve of the present invention.
Accompanying drawing 7 is the deflation schematic diagram of three-way air valve of the present invention.
Accompanying drawing 8 is with reference to figure when the present invention is used.
Label shown in accompanying drawing：
1st, conically shaped；2nd, steel wire keel；3rd, it is raised；4th, silica-gel bead；5th, negative pressure cover；6th, sealing strip；7th, connecting cylinder；8th, internal valve
Chamber；9th, bleeding point；10th, conical plug；11st, the first spring；12nd, air exhaust nozzle；13rd, tracheae；14th, connecting rod；15th, threaded block；16th, draw
Bar；17th, spherical shell；18th, slot；19th, rotating mask；20th, standpipe；21st, traction handle；22nd, control handle；23rd, control chamber；24th, second
Spring；25th, swivel nut；26th, control-rod；27th, spring base；28th, the second external screw thread；29th, connecting tube；30th, three-way air valve；31st, rubber
Ball；32nd, adapter of plastic；33rd, extraction valve；34th, air outlet valve；35th, communicating valve；36th, it is evacuated leather cup；37th, slot；38th, deflation leather cup.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within scope defined herein.
Of the present invention is vacuum extractor, and agent structure includes the conically shaped 1 of metal, and the conically shaped 1 is metallic
The thin-walled barrel shell on ground, the hard profile smooth-going of quality, is negative pressure on the premise of preventing plowing from puerpera or bringing discomfort to puerpera
Produce and a rigid space is provided, the wide end of the conically shaped 1 is provided with many steel wire keels 2 for being fixed to arc, the steel wire
The week side of boss annular array that keel 2 are open along conically shaped 1, opens after being contacted with fetal head with the physiological curve of fetal head, so that gently
Soft holds together fetal head in steel wire keel 2.Steel wire keel 2 provides skeletal support for the use of the negative pressure cover 5 of aftermentioned Silicon moulds,
Negative pressure cover 5 is kept the form of a bell cover body, and softly can smoothly sandwich fetal head.The top of the steel wire keel 2
End is provided with segment-shaped and the inside cavity of opening, the cavity provided with domed raised 3, described raised 3 and is provided with and it
Adaptable silica-gel bead 4, the silica bead can be rolled in cavity, because the front end of steel wire keel 2 is rounding state, therefore front end
Easily contacted with fetus head skin, contacted, kept away with fetal head skin by the silica-gel bead 4 for being arranged on the leading inside of steel wire keel 2
Exempt from steel wire keel 2 directly to touch on fetal head.Silica-gel bead 4 is safe and healthy, and quality is soft and fine and smooth, and by fetal head skin
Rolling replace slide, can preferably protect fetal head skin, it is to avoid the dermal contact such as scuffings, scratch, subcutaneous hemorrhage injury.Institute
Stating the outer side covers of keel has bell negative pressure cover 5, and the top side of the negative pressure cover 5 is provided with and its integrally formed sealing strip 6, institute
The top side for stating sealing strip 6 curves inwardly, the pellosil that the negative pressure cover 5 and sealing strip 6 are formed in one, prior art it is all
Attractor is contacted and adsorbed with fetal head using variously-shaped leather cup, and leather cup is typically all silica gel or silicon rubber quality.For
Convenience enters birth canal, and keeps certain form, and the rubber cup for being currently used for contacting with fetal head has certain supporting degree, this
Sample one carrys out its harder quality can not then adapt to for the tender skin of fetal head, it is easy to be left with the tables such as cut, scratch, silt trace
Skin is injured.Simultaneously in order to consider the entrance of birth canal, it is wide that the leather cup of existing attractor front end can not be designed, and can only cover tire
The local small part of head, causes excessive to the local suction of fetal head, tire bag arches upward seriously.The present invention by using soft and
Pellosil quality negative pressure cover 5 with ductility and elasticity, instead of traditional rubber/silica gel leather cup, pellosil flexible touch is thin
It is greasy, parcel is contacted with fetal head skin and skin is not damaged, scratch, the probability scratched is significantly reduced.Meanwhile, pass through steel wire
Keel 2 compensate for the formation problems of soft negative pressure cover 5, can smoothly enter birth canal, and open branch in steel wire keel 2
Fetal head surface is smoothly covered under support.This initial stage draws (conveniently entering birth canal) in, and that is opened after covering and (cover new line) opens
Structure, fixed size, the leather cup of shape inconvenience compared with prior art, the new line scope that negative pressure cover 5 is covered after opening greatly increases,
The active area of negative pressure can be dramatically increased, makes absorption more firm, and significantly disperses negative-pressure sucking, alleviates tire bag significantly and arches upward
Degree, the problems such as reducing subcutaneous hemorrhage, intracranial hemorrhage.In addition, when negative pressure is produced in conically shaped 1, being transmitted by negative pressure cover 5
Firmly attract to wrap to fetal head and by fetal head.Negative pressure cover 5 is inwardly to be received with fetal head curve under soft pellosil, negative pressure
Hold together, the partial negative pressure cover 5 and sealing strip 6 positioned at front end are all close on scalp, increase and the contact area of scalp, compared to existing
The extruding that the leather cup edge of front end is caused to fetal head when attractor pressure attracts, is avoided that the generation of blister, and protection fetal head is weaker
Skin.The sealing strip 6 is detained in the front end and front side of negative pressure cover 5, existing when reusing that front end is probeed into birth canal, makes a circle steel wire
The center alignment fetal head of keel 2 is probeed into after birth canal, and steel wire keel 2 is complied with fetal head and opened, and opening cover with negative pressure cover 5 enters fetal head,
Negative pressure cover 5 is continued to push degree of skipping over (detaining in the front side side of diaphragm seal) forward, then pull routs up diaphragm seal backward, so that
Tightly it is attached on fetal head, the convenient negative pressure space that closing is produced in pumping.The narrow end of the conically shaped 1 is provided with connecting cylinder 7,
On the one hand the space to form negative pressure can be increased, because negative pressure cover 5 is deformed substantially, makes the space to form negative pressure accordingly not enough, even
Influence of the deformation of negative pressure cover 5 to negative pressure space can be made up by connecing cylinder 7, and the inwall of the connecting cylinder 7 is provided with internal valve cavity 8, described
Internal valve cavity 8 is provided with the bleeding point 9 of taper, and the bleeding point 9 is provided with the conical plug 10 that can be sealed against, the internal valve cavity
The first spring 11 is additionally provided with 8, one end of first spring 11 is connected with the bottom surface of conical plug 10, first spring 11
The other end is connected with the inwall of connecting cylinder 7, is stoppered the bleeding point 9 of taper by the spring top clamping conical plug 10, the company of being formed
Connect the closing of negative pressure space in cylinder 7 and conically shaped 1.Due to being negative pressure in connecting cylinder 7 after pumping, therefore can be further by conical plug 10
It is pressed on bleeding point 9, sealing is firm.The side wall of the connecting cylinder 7 is provided with the air exhaust nozzle 12 being connected with internal valve cavity 8, described
The porch of air exhaust nozzle 12 is corresponding with bleeding point 9 point-blank, and the air exhaust nozzle 12 is used for connecting air extractor, and
The folding of conical plug 10 and bleeding point 9 is controlled, the air exhaust nozzle 12 is provided with and its phase for the side wall of tubular mouth and air exhaust nozzle 12
The tracheae 13 of connection, the outer end of the air exhaust nozzle 12 is provided with from-inner-to-outer to be connected with air extractor in the air exhaust nozzle 12
Connecting rod 14, threaded block 15, the pull bar 16 being sequentially connected, the outer end of the pull bar 16 are provided with handle, and the inner of the pull bar 16 is worn
Enter air exhaust nozzle 12, the outer end of the valve is provided with the through hole passed through for pull bar 16, the through hole and is provided with sealing rubber ring, described
Threaded block 15 is cylindrical pivot block and its week side of boss is provided with the first external screw thread, and the air exhaust nozzle 12 is on the inwall of outer end portion
Provided with the first internal thread being engaged with the first external screw thread, the inner of the connecting rod 14 is fixedly connected with conical plug 10.When first
Spring 11 in nature do not stress state when, the position of the threaded block 15 and the first internal thread is staggered, the threaded block 15
In the middle part of air exhaust nozzle 12, now conical plug 10 clogs bleeding point 9, makes the interior sealing of connecting cylinder 7, when being pulled outwardly pull bar 16, and
Swing handle, compressible first spring 11, and threaded block 15 is threadedly coupled with the first internal thread, so as to realize fixation, make cone
Shape plug 10 keeps the separation with bleeding point 9, connecting cylinder 7 is communicated with tracheae 13, if connection air extractor, then connect on tracheae 13
Connect cylinder 7 just to communicate with air extractor, if tracheae 13 is communicated with air, connecting cylinder 7 is just connected with air.So,
When needing pumping, electronic air extractor, or manual exhauster can be used, air extractor directly can be connected to tracheae
On 13, conical plug 10 leaves bleeding point 9 with pumping during pumping, realizes pumping, when needing to release negative-pressure adsorption, pulls out pull bar
16 fix it, you can carry out aeration and quickly remove absorption affinity.Aforesaid operations add pumping, the facility of aeration
Property.It is existing clinically, doctor to be evacuated and ventilate operation it is all relatively complicated, add in art act hurriedly in a messy situation.Present apparatus letter
The operation of pumping ventilation is changed, pumping is directly connected, pull bar 16 is extracted in ventilation, simple to operate, doctor is being carried out midwifery
It is more calm in operation.
After attractor fixes fetal head, draw operations are also extremely important, in addition to traction dynamics need doctor's control, traction
The selection of angle is more crucial.The angle Selection of traction is bad, it is easy to trigger attractor to come off, the problems such as fetal head is injured, together
Shi Ruguo repeatedly comes off, then can not implement suction.Trigger more responsible consequence.The connecting cylinder 7 away from conically shaped 1 one
End is provided with spherical shell 17, and the spherical shell 17 is connected with connecting cylinder 7, and the spherical shell 17 can further increase being capable of shape
Into the rigid space of negative pressure, meanwhile, spherical housing is conducive to the regulation of fine angle.The spherical shell 17 is away from connecting cylinder 7
Side slot 18 is distributed with, the slot 18 is uniformly distributed, and the outside of the spherical shell 17 is provided with the segment adaptable with it
Shape rotating mask 19, the spherical shell 17 is spacing and is rotationally connected with rotating mask 19, the outside of the rotating mask 19 setting between two parties
There is the standpipe 20 of perpendicular connection, the rotational structure of the rotating mask 19 and one oscillating bearing of formation of spherical shell 17 makes to stand
Pipe 20 can centered on the center of circle of spherical shell 17 along spherical shell 17 surface pivots, the standpipe 20 be provided with traction handle
21, convenient to fix palm and have an effect, the described one end of standpipe 20 away from rotating mask 19 is provided with control handle 22, the control handle 22
Provided with control chamber 23, the control chamber 23, standpipe 20 are connected with rotating mask 19, and second spring is provided with the control chamber 23
24, the outer end of the control chamber 23 is provided with swivel nut 25, the standpipe 20 provided with the control-rod 26 being slidably connected with it, the control
The inner and the activity grafting of slot 18 of bar 26 processed, when control-rod 26 inserts slot 18, can realize the fixation of standpipe 20.The vertical rod
Outer end pass swivel nut 25 and provided with draw ring, the control-rod 26 is provided with spring base 27, and the spring base 27 is arranged at control
In chamber 23, and the inner of the second spring 24 is connected with spring base 27, and the control-rod 26 is provided with to be connected with the screw thread of swivel nut 25
Second external screw thread 28 described in when in the second external screw thread 28 connect, the insertion of control-rod 26 slot 18 is located in control chamber 23.On
Structure is stated in operation, the angle of control handle 22 and the relatively spherical shell 17 of vertical rod can be quickly and easily adjusted.Due to the angle of traction
Degree generally requires to be affectedly bashful, attempt and adjust repeatedly, therefore pulling out draw ring makes control-rod 26 be threadedly coupled fixation with swivel nut 25, you can make
The state that rotating mask 19 keeps freely rotating on the surface of spherical shell 17.Adjust after correct position and angle, pivoting lever 26
Threaded connection is released, it is lockable to unclamp draw ring, and the standpipe 20 and connecting cylinder 7, conically shaped 1 for making grasping keep rational angle,
The implementation of convenient traction.
Clinically, air extractor used in doctor mainly include manually and it is electronic, due to electric pumping device suction too
Greatly, error and is once controlled to cause serious consequence, thus it is general using manually, and manual air extractor typically uses syringe
Be evacuated, be often evacuated can not once meet requirement (.Negative pressure such as is taken out with 50~100ml syringes, though all kinds fetal head is inhaled
Lead device volume is different, but is computed, the air capacity extracted out every time for the vacuum extractor capacity 1/2 when the negative pressure phase that is formed
Deng.Typically once pumping can form 33mmHg negative pressure), it is necessary to connection pumping 2~4 times repeatedly, syringe needs double
Hand is controlled, therefore air suction process is accomplished by two medical personnel and operated simultaneously, is bothered very much.It is detachably connected on the air exhaust nozzle 12
There is the negative pressure ventilation device for being matched therewith using, the negative pressure ventilation device includes connecting tube 29, three-way air valve 30 and rubber
Ball 31, the connecting tube 29 is rubber hose, and one end of the connecting tube 29 is provided with adapter of plastic 32, the adapter of plastic 32 with
The end removable seal connection of tracheae 13, the other end of the connecting tube 29 is connected with three-way air valve 30, the three-way air valve
30 be T-shaped structure, and the three-way air valve 30 includes extraction valve 33, air outlet valve 34 and communicating valve 35, the one of the communicating valve 35
End is connected with ball 31, and the one end of the communicating valve 35 away from ball 31 is connected with extraction valve 33, the extraction valve
33 are connected with the one end of connecting tube 29 away from adapter of plastic 32, are provided with the outer end opening of the extraction valve 33 away from communicating valve 35
Leather cup 36 is evacuated, and the extraction valve 33 is connected by being evacuated leather cup 36 with connecting tube 29, the pumping leather cup 36 is ellipse
Silica gel ball cover and be arranged in extraction valve 33, the pumping leather cup 36 is provided with slot 37, one end of the vent valve with it is outer
Portion is connected to connection, the other end of the vent valve with communicating valve 35, and the junction of the vent valve and communicating valve 35 is provided with
Deflation leather cup 38, the deflation leather cup 38 is oval silica gel ball cover and is arranged in vent valve, and the vent valve is by putting
Gas leather cup 38 is connected with communicating valve 35, and the deflation leather cup 38 is provided with slot 37.By said structure, the three-way air valve 30
It is connected, is connected by vent valve and ft connection, and by communicating valve 35 with ball 31, such as with tracheae 13 by extraction valve 33
Shown in accompanying drawing 6,7, when ball 31 pinches flat outside outlet (accompanying drawing 7), the pumping leather cup 36 is extruded slot 37 and closed, and
Deflation leather cup 38 is inflated slot 37 and opened, and the gas in ball 31 is run out.When the release automatic rebounding of hand ball 31
Restore, as shown in Figure 6, deflation leather cup 38 and inwardly extruding close slot 37, and being evacuated leather cup 36 and being evacuated stretching makes to cut
Seam 37 is dehisced, and the gas in the connecting cylinder 7 that tracheae 13 is connected is extracted out, forms negative pressure.Above-mentioned negative pressure ventilation device is applied to face
On bed, compared to electronic and syringe, on the one hand, by the folding and unfolding gas uniformly and quickly gas bleeding of ball 31, make to tire
The control of negative-pressure sucking on head is more accurate, is evacuated softr, negative pressure needed for accurate assurance childbirth midwifery.Improve midwifery effect
Rate, protects fetal head.On the other hand, doctor is connected after tracheae 13, and attractor is buttressed on the other hand, and the pumping of ball 31 is held on the other hand i.e.
Can, one can complete, operation difficulty reduction.
Connect for convenience, make operation quicker, neck of the end provided with annular of the tracheae 13, the plastics connect
First 32 be annular working of plastics, and the internal diameter of the adapter of plastic 32 is adapted with the external diameter of tracheae 13, and the adapter of plastic 32
Inwall be provided with the card article of a ring shape, the card article snaps connection with neck, makes the insertion tracheae 13 of adapter of plastic 32 end
Can buckle fix, connect it is quick and convenient.Rubber weather strip is provided with the opening of the adapter of plastic 32.Close adapter of plastic
The gap of 32 inwalls and the outer wall of tracheae 13, makes the two connection more seal.
The inwall of the conically shaped 1 is provided with baroceptor.But the accurate negative pressure value in conically shaped 1 is understood at any time,
Improve the control to negative pressure suction force.Effectively protection fetus reduction attractor injury.
Embodiment：Vacuum extractor, agent structure includes the conically shaped 1 of metal, and the inwall of the conically shaped 1 is provided with gas
Pressure sensor.The signal of B/P EGR Back Pressure Transducer EGR is by being wirelessly transferred, and the vacuum extractor also includes the meter depressor being separately provided, institute
Stating meter depressor includes being used for showing B/P EGR Back Pressure Transducer EGR on plastic casing and the display screen on plastic casing, the display screen
Circuit board is provided with the pressure value measured, the plastic casing, the circuit board and display screen are by connection, the circuit
Plate is connected with B/P EGR Back Pressure Transducer EGR by wireless signal.Doctor can be by counting depressor real-time monitored to the negative pressure value in conically shaped 1.
The wide end of the conically shaped 1 is provided with 12 steel wire keels 2 for being fixed to arc, the week that the steel wire keel 2 is open along conically shaped 1
Side annular array, the top of the steel wire keel 2 provided with domed raised 3, described raised 3 provided with segment-shaped and be open to
The silica-gel bead 4 adaptable with it is provided with interior cavity, the cavity, the silica bead can be rolled in cavity, the keel
Outer side covers have a negative pressure cover 5, the top side of the negative pressure cover 5 is provided with sealing strip 6, and the top side of the sealing strip 6 curves inwardly, institute
The pellosil that negative pressure cover 5 and sealing strip 6 are formed in one is stated, the narrow end of the conically shaped 1 is provided with connecting cylinder 7, the connecting cylinder 7
It is connected for cylindrical metal pipe barrel and with conically shaped 1, the described one end of connecting cylinder 7 away from conically shaped 1 is provided with spherical shell 17,
The spherical shell 17 is connected with connecting cylinder 7, and slot 18, the ball is distributed with the side of the spherical shell 17 away from connecting cylinder 7
The outside of shape shell 17 is provided with the segment-shaped rotating mask 19 adaptable with it, and the spherical shell 17 is spacing and is rotationally connected with rotating mask
In 19, the standpipe 20 provided with perpendicular connection of the outside of the rotating mask 19 between two parties, the standpipe 20 is provided with traction handle
21, the described one end of standpipe 20 away from rotating mask 19, which is provided with control handle 22, the control handle 22, is provided with control chamber 23, the control
Chamber 23 processed, standpipe 20 are connected with rotating mask 19, and second spring 24, the outer end of the control chamber 23 are provided with the control chamber 23
Provided with swivel nut 25, provided with the control-rod 26 being slidably connected with it in the standpipe 20, the inner and the slot 18 of the control-rod 26
Activity grafting, the outer end of the vertical rod passes swivel nut 25 and provided with draw ring, and the control-rod 26 is provided with spring base 27, the bullet
Spring abutment 27 is arranged in control chamber 23, and the inner of the second spring 24 is connected with spring base 27, is set on the control-rod 26
Second external screw thread 28 described in when having in the second external screw thread 28 being threadedly coupled with swivel nut 25, the insertion of control-rod 26 slot 18
In in control chamber 23.The inwall of the connecting cylinder 7 is provided with internal valve cavity 8, and the internal valve cavity 8 is provided with the bleeding point 9 of taper, institute
State bleeding point 9 and be provided with the conical plug 10 that can be sealed against, the internal valve cavity 8 and be additionally provided with the first spring 11, described first
One end of spring 11 is connected with the bottom surface of conical plug 10, and the other end of first spring 11 is connected with the inwall of connecting cylinder 7, institute
The side wall for stating connecting cylinder 7 is provided with the air exhaust nozzle 12 being connected with internal valve cavity 8, porch and the bleeding point 9 of the air exhaust nozzle 12
Corresponding and in alignment, the air exhaust nozzle 12 is provided with coupled logical tracheae for the side wall of tubular mouth and air exhaust nozzle 12
13, the outer end of the air exhaust nozzle 12 is sequentially connected to be connected with air extractor in the air exhaust nozzle 12 provided with from-inner-to-outer
Connecting rod 14, threaded block 15, pull bar 16, the outer end of the pull bar 16 are provided with handle, and the inner of the pull bar 16 penetrates air exhaust nozzle 12,
The threaded block 15 is cylindrical pivot block and its week side of boss is provided with the first external screw thread, and the air exhaust nozzle 12 is in outer end portion
Wall is provided with the first internal thread being engaged with the first external screw thread, and the inner of the connecting rod 14 is fixedly connected with conical plug 10.Institute
The negative pressure ventilation device for being removably connected with air exhaust nozzle 12 and being matched therewith using is stated, the negative pressure ventilation device includes connection
Pipe 29, three-way air valve 30 and ball 31, the connecting tube 29 are rubber hose, and one end of the connecting tube 29 connects provided with plastics
First 32, the adapter of plastic 32 is connected with the end removable seal of tracheae 13, card of the end provided with annular of the tracheae 13
Groove, the adapter of plastic 32 is the working of plastics of annular, and the internal diameter of the adapter of plastic 32 is adapted with the external diameter of tracheae 13, and institute
The inwall for stating adapter of plastic 32 is provided with the card article of a ring shape, and the card article is snapped connection with neck, the adapter of plastic 32
Opening at be provided with rubber weather strip.The other end of the connecting tube 29 is connected with three-way air valve 30, and the three-way air valve 30 is T
Character form structure, the three-way air valve 30 includes extraction valve 33, air outlet valve 34 and communicating valve 35, one end of the communicating valve 35 and rubber
Glueballs 31 is connected, and the one end of the communicating valve 35 away from ball 31 is connected with extraction valve 33, and the extraction valve 33 is with connecting
Provided with pumping skin at one end connection of the adapter 29 away from adapter of plastic 32, the outer end opening of the extraction valve 33 away from communicating valve 35
Bowl 36, and the extraction valve 33 connects by being evacuated leather cup 36 with connecting tube 29, the pumping leather cup 36 is oval silica gel
Ball cover and it is arranged in extraction valve 33, the pumping leather cup 36 is provided with slot 37, and one end of the vent valve is with outside to even
Logical, the other end of the vent valve is connected with communicating valve 35, and the junction of the vent valve and communicating valve 35 is provided with deflation skin
Bowl 38, the deflation leather cup 38 is oval silica gel ball cover and is arranged in vent valve, and the vent valve passes through deflation leather cup
38 connect with communicating valve 35, and the deflation leather cup 38 is provided with slot 37.
Claims (5)
1. vacuum extractor, it is characterised in that：Conically shaped (1) including metal, the wide end of the conically shaped (1) is fixed provided with many
Type is the steel wire keel (2) of arc, the week side of boss annular array that the steel wire keel (2) is open along conically shaped (1), the steel wire dragon
The top of bone (2) is provided with domed raised (3), and the projection (3) is described recessed provided with segment-shaped and the inside cavity of opening
Intracavitary is provided with the silica-gel bead (4) adaptable with it, and the silica bead can be rolled in cavity, the outside of the steel wire keel (2)
Covered with negative pressure cover (5), the top side of the negative pressure cover (5) is provided with sealing strip (6), and the top side of the sealing strip (6) curves inwardly,
The pellosil that the negative pressure cover (5) and sealing strip (6) are formed in one, the narrow end of the conically shaped (1) is provided with connecting cylinder (7),
The connecting cylinder (7) is connected for cylindrical metal pipe barrel and with conically shaped (1), and the inwall of the connecting cylinder (7) is provided with
Internal valve cavity (8), the internal valve cavity (8) is provided with the bleeding point (9) of taper, and the bleeding point (9) is provided with and can be sealed against
Conical plug (10), is additionally provided with the first spring (11), one end of first spring (11) and conical plug in the internal valve cavity (8)
(10) bottom surface connection, the other end of first spring (11) is connected with the inwall of connecting cylinder (7), the connecting cylinder (7)
Side wall is provided with the air exhaust nozzle (12) being connected with internal valve cavity (8), and the air exhaust nozzle (12) is tubular mouth and air exhaust nozzle (12)
Side wall is provided with the connecting rod being sequentially connected in coupled logical tracheae (13), the air exhaust nozzle (12) provided with from-inner-to-outer
(14), threaded block (15), pull bar (16), the outer end of the pull bar (16) are provided with handle, and the inner of the pull bar (16), which is penetrated, takes out
Valve (12), the threaded block (15) is cylindrical pivot block and its week side of boss is provided with the first external screw thread, and the air exhaust nozzle (12) is leaned on
The inwall of nearly outer end portion is provided with the first internal thread being engaged with the first external screw thread, the inner of the connecting rod (14) and taper
Plug (10) is fixedly connected.
2. vacuum extractor according to claim 1, it is characterised in that：The one end of the connecting cylinder (7) away from conically shaped (1)
Provided with spherical shell (17), the spherical shell (17) is connected with connecting cylinder (7), the remote connecting cylinder (7) of the spherical shell (17)
Slot (18) is distributed with side, and the outside of the spherical shell (17) is provided with the segment-shaped rotating mask (19) adaptable with it, described
Spherical shell (17) is spacing and is rotationally connected with rotating mask (19), the outside of the rotating mask (19) between two parties provided with perpendicular
The standpipe (20) of connection, the standpipe (20) is provided with traction handle (21), the one end of the standpipe (20) away from rotating mask (19)
Provided with control handle (22), control chamber (23), the control chamber (23), standpipe (20) and rotating mask are provided with the control handle (22)
(19) it is connected, second spring (24) is provided with the control chamber (23), the outer end of the control chamber (23) is provided with swivel nut (25),
Provided with the control-rod (26) being slidably connected with it in the standpipe (20), the inner and slot (18) activity of the control-rod (26)
Grafting, the outer end of the vertical rod passes swivel nut (25) and provided with draw ring, and the control-rod (26) is provided with spring base (27), described
Spring base (27) is arranged in control chamber (23), and the inner of the second spring (24) is connected with spring base (27), the control
Bar (26) processed is provided with the second external screw thread (28) being threadedly coupled with swivel nut (25), control-rod (26) the insertion slot (18)
The external screw threads of Shi Suoshu second (28) are located in control chamber (23).
3. vacuum extractor according to claim 1, it is characterised in that：It is removably connected with and it on the air exhaust nozzle (12)
The negative pressure ventilation device being used in combination, the negative pressure ventilation device includes connecting tube (29), three-way air valve (30) and ball
(31), the connecting tube (29) is rubber hose, and one end of the connecting tube (29) is provided with adapter of plastic (32), and the plastics connect
Head (32) is connected with the end removable seal of tracheae (13), and the other end and the three-way air valve (30) of the connecting tube (29) connect
Connect, the three-way air valve (30) is T-shaped structure, the three-way air valve (30) includes extraction valve (33), air outlet valve (34) and connected
Port valve (35), one end of the communicating valve (35) is connected with ball (31), and the communicating valve (35) is away from ball (31)
One end be connected with extraction valve (33), the one end of the extraction valve (33) and connecting tube (29) away from adapter of plastic (32) connects
Connect, provided with pumping leather cup (36) at outer end opening of the extraction valve (33) away from communicating valve (35), and the extraction valve (33)
Connected by being evacuated leather cup (36) with connecting tube (29), the pumping leather cup (36) is taken out for the silica gel ball cover and being arranged at of ellipse
In air valve (33), the pumping leather cup (36) is provided with slot (37), one end of the vent valve with outside to connecting, it is described to put
The other end of air valve is connected with communicating valve (35), and the junction of the vent valve and communicating valve (35) is provided with deflation leather cup
(38), the deflation leather cup (38) is oval silica gel ball cover and is arranged in vent valve, and the vent valve passes through deflation skin
Bowl (38) is connected with communicating valve (35), and the deflation leather cup (38) is provided with slot (37).
4. vacuum extractor according to claim 1, it is characterised in that：Card of the end of the tracheae (13) provided with annular
Groove, the adapter of plastic (32) is annular working of plastics, and the external diameter of the internal diameter and tracheae (13) of the adapter of plastic (32) is mutually fitted
Should, and the inwall of the adapter of plastic (32) is provided with the card article of a ring shape, the card article snaps connection with neck, the modeling
Expect to be provided with rubber weather strip at the opening of joint (32).
5. vacuum extractor according to claim 1, it is characterised in that：The inwall of the conically shaped (1) is provided with air pressure transmission
Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710471886.1A CN107049446B (en) | 2017-06-20 | 2017-06-20 | Fetal head suction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710471886.1A CN107049446B (en) | 2017-06-20 | 2017-06-20 | Fetal head suction apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107049446A true CN107049446A (en) | 2017-08-18 |
| CN107049446B CN107049446B (en) | 2020-01-07 |
Family
ID=59594155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710471886.1A Expired - Fee Related CN107049446B (en) | 2017-06-20 | 2017-06-20 | Fetal head suction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107049446B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108478264A (en) * | 2018-02-05 | 2018-09-04 | 日照轩宜信息科技有限公司 | A kind of portable midwifery device |
| CN108742801A (en) * | 2018-06-28 | 2018-11-06 | 宋金鸿 | Vacuum attraction formula obstetric delivery device |
| CN112790877A (en) * | 2020-12-30 | 2021-05-14 | 华中科技大学同济医学院附属协和医院 | Fixator for heart surgical transplantation and use method thereof |
| WO2024057082A1 (en) * | 2022-09-16 | 2024-03-21 | Mutarba Altaf Khan | Obstetrician assistance device and method to operate the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3794044A (en) * | 1971-10-20 | 1974-02-26 | Ethyl Corp | Delivery forceps |
| CN201591604U (en) * | 2010-01-05 | 2010-09-29 | 于文明 | Safety extractor for fetal head |
| CN203591312U (en) * | 2013-12-14 | 2014-05-14 | 宗秀红 | Endometrium curet |
| CN204092516U (en) * | 2014-04-04 | 2015-01-14 | 洞玛生物技术(深圳)有限公司 | A kind of novel facial beauty instrument |
-
2017
- 2017-06-20 CN CN201710471886.1A patent/CN107049446B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3794044A (en) * | 1971-10-20 | 1974-02-26 | Ethyl Corp | Delivery forceps |
| CN201591604U (en) * | 2010-01-05 | 2010-09-29 | 于文明 | Safety extractor for fetal head |
| CN203591312U (en) * | 2013-12-14 | 2014-05-14 | 宗秀红 | Endometrium curet |
| CN204092516U (en) * | 2014-04-04 | 2015-01-14 | 洞玛生物技术(深圳)有限公司 | A kind of novel facial beauty instrument |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108478264A (en) * | 2018-02-05 | 2018-09-04 | 日照轩宜信息科技有限公司 | A kind of portable midwifery device |
| CN108742801A (en) * | 2018-06-28 | 2018-11-06 | 宋金鸿 | Vacuum attraction formula obstetric delivery device |
| CN108742801B (en) * | 2018-06-28 | 2021-03-12 | 青岛市妇女儿童医院 | Vacuum suction type obstetric delivery device |
| CN112790877A (en) * | 2020-12-30 | 2021-05-14 | 华中科技大学同济医学院附属协和医院 | Fixator for heart surgical transplantation and use method thereof |
| CN112790877B (en) * | 2020-12-30 | 2022-03-01 | 华中科技大学同济医学院附属协和医院 | Fixator for heart surgical transplantation and use method thereof |
| WO2024057082A1 (en) * | 2022-09-16 | 2024-03-21 | Mutarba Altaf Khan | Obstetrician assistance device and method to operate the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107049446B (en) | 2020-01-07 |
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Granted publication date: 20200107 Termination date: 20210620 |