CN108926379A - A kind of new-type Manual membrane rupturing device - Google Patents
A kind of new-type Manual membrane rupturing device Download PDFInfo
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- CN108926379A CN108926379A CN201810816695.9A CN201810816695A CN108926379A CN 108926379 A CN108926379 A CN 108926379A CN 201810816695 A CN201810816695 A CN 201810816695A CN 108926379 A CN108926379 A CN 108926379A
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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
- A61B17/4208—Instruments for rupturing the amniotic membrane
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
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Abstract
A kind of new-type Manual membrane rupturing device solves now clinically without special rupture of membranes tool, and easy occupational exposure, is unfavorable for the problem of puerpera and fetal well-being etc. comprising vertical cylinder, cylinder lower end are fixedly connected with cabinet through connecting plate when leading to rupture of membranes；The upper end of cylinder is fixed with the sealing ring of taper, and the upper end of sealing ring is greater than lower end, and the lower end of cylinder is fixed with sealing-plug, and hollow fixed column is slidably equipped in cylinder, and sealing ring is run through in fixed column upper surface, and fixed column lower end is connect through cylinder with box body-sliding；The piston of vertical sliding is equipped in cylinder, the lower end of piston is rotatably connected with hollow threaded rod, threaded rod lower end is connect through sealing-plug and with plug thread, threaded rod lower end surface is placed in cabinet and is fixedly connected with the first idle pulley, the first gear being fixed on threaded rod is equipped with above first idle pulley, fixed column be placed in threaded rod and in threaded rod can vertical sliding, threaded rod is run through in the lower end of fixed column.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly, to a kind of new-type Manual membrane rupturing device.
Background technique
Artificial rupture of membrane is to be somebody's turn to do for promoting one of common medical intervention means of stages of labor in obstetrics currently, clinic is the most frequently used
Operation is puncture needle and haemostatic clamp, in clinical manipulation,
The operating procedure of artificial rupture of membrane: dilatation of cervix >=3cm, no cephalopelvic disproportion, fetal head be connected, exclude omphaloproptosis and
Placental presentation checks vagina cleanness degree, strict sterilization downlink examination per vagina.Between uterine contraction twice, in left hand, index finger protrudes into
Vagina guidance, the right hand hold toothed forceps, clamp broken fetal membrane afterwaters outflow, can listen to fetal rhythm after rupture of membranes, patient's finger is answered after rupture of membranes
Rest on intravaginal, through 1~2 uterine contraction after engagement of head, patient again takes out finger, pay attention to observe amniotic fluid outflow amount and
Color, shape and whether there is or not omphaloproptosises etc..
When hydramnion, using the high-order rupture of membranes of long syringe needle 13, and cut is blocked with finger, amniotic fluid is allowed slowly to flow out, in order to avoid
Intrauterine pressure rapid drawdown leads to placental abruption.
Often there is drawback and hidden danger in the actual operation process in either puncture needle and haemostatic clamp, using syringe needle into
When row rupture of membranes operates, higher to the skill requirement of doctor, depth is not easy to grasp, and fetus may be will affect deeply very much by being pierced into, using only
Blood pincers are not easy to clip broken fetal membrane, and operation difficulty is larger, and after rupture of membranes, and the rate of outflow of amniotic fluid is not easy to control, easily cause tire
Youngster's Following Hypoxia in Uterus influences the later intellectual development of fetal birth.
It often will appear medical staff's occupational exposure using puncture needle or haemostatic clamp, influence puerpera and fetal well-being etc.
Problem.
Summary of the invention
For above situation, to overcome the shortcomings of existing technologies, the present invention provides a kind of new-type Manual membrane rupturing device, has
Effect solves now clinically without special rupture of membranes tool, and easy occupational exposure, is unfavorable for puerpera and fetus when leading to rupture of membranes
The problem of safety etc..
To achieve the above object, the invention provides the following technical scheme: the present invention includes vertical cylinder, cylinder lower end warp
Connecting plate is fixedly connected with cabinet；
The upper end of cylinder is fixed with the sealing ring of taper, and the upper end of sealing ring is greater than lower end, and the lower end of cylinder is fixed with close
Blocking, cylinder, sealing ring and sealing-plug three constitute the structure of sealing；
Sealing ring is equipped with first through hole and the second through-hole, and when cylinder internal pressure is greater than external pressure, first through hole is opened,
The sealing of second through-hole, when cylinder internal pressure is less than external pressure, first through hole sealing, the second through-hole is opened；
Hollow fixed column is slidably equipped in cylinder, sealing ring is run through in fixed column upper surface, and fixed column lower end is run through
Cylinder is connect with box body-sliding；
The piston of vertical sliding is equipped in cylinder, the lower end of piston is rotatably connected with hollow threaded rod, threaded rod
Lower end is connect through sealing-plug and with plug thread, and threaded rod lower end surface is placed in cabinet and is fixedly connected with the first idle pulley,
The first gear being fixed on threaded rod is equipped with above first idle pulley, fixed column is placed in threaded rod and can be vertical in threaded rod
Threaded rod is run through in the lower end of sliding, fixed column；
The syringe needle of vertical sliding is equipped in fixed column, the lower end of syringe needle is rotatably connected with lead screw, and fixed column is through step
It is divided into upper prop and lower prop, lead screw is threadedly coupled with lower prop, and the lower end of lead screw through lower prop and is fixedly connected with second gear, and second
The second idle pulley being fixed on lead screw is equipped with above gear；
Be equipped in cabinet can vertical sliding gear shaft, the first ratchet, the are successively arranged on gear shaft from top to bottom
Three idle pulleys and the second ratchet, the first ratchet are the structure for rotating clockwise, locking counterclockwise, and the second ratchet is
The structure lock clockwise, rotated counterclockwise；
When first ratchet is engaged with first gear, the second ratchet is engaged with second gear, and third idle pulley is not
It is engaged with the first idle pulley or the second idle pulley；
When third idle pulley is engaged with the first idle pulley or the second idle pulley, the first ratchet is not engaged with first gear, and second
Ratchet is not engaged with second gear.
Preferably, the clamping device of fixed column is equipped in the cabinet, clamping device includes two clamping plates, two clamping plates pair
The outside at the both ends for being arranged in fixed column claimed, each clamping plate is equipped with a rotation axis, and rotation axis front end and middle section are equipped with
Screw thread and thread rotary orientation are on the contrary, rotation axis front end and middle section are threaded with a rectangular block, and rectangular block is along rotation axis
Longitudinal sliding motion, each rectangular block are hinged with a connecting rod, and the other end of connecting rod is hingedly fixed with clamping plate, two companies of the same side
Bar is the same articulated shaft, and the rear end of each rotation axis is fixed with third gear through cabinet, and two third gears pass through gear
System's transmission connection, the rotation direction of two third gears are identical.
Preferably, the upper end of the first through hole is equipped with the first sealing cover, the first sealing cover and sealing ring it is hingedly fixed and
The first torsional spring is set on articulated shaft, one end of the first torsional spring is fixedly connected with articulated shaft, the other end of the first torsional spring and first
Sealing cover is fixedly connected.
Preferably, the lower end of second through-hole is equipped with the second sealing cover, the second sealing cover and sealing ring it is hingedly fixed and
The second torsional spring is set on articulated shaft, one end of the second torsional spring is fixedly connected with articulated shaft, the other end of the second torsional spring and sealing
Lid is fixedly connected.
Preferably, the vertical through slot of arc is offered on the piston, that slides in through slot is equipped with vertical convex block, convex
The top and bottom of block are respectively placed in the outside of piston, and convex block inner end is fixedly connected through through slot with fixed column.
Preferably, T-slot is arranged in the fixed column inner periphery, is slidably equipped with T-block, the outer end of T-block in T-slot
It is fixedly connected through T-slot with syringe needle.
Preferably, the lower end of the cylinder is fixed with the banjo splint of annular.
Preferably, it is ratchet on the inside of first ratchet, is hinged with multiple ratchets on gear shaft, connects on the outside of pawl
It is connected to spring, the spring other end is fixed on gear shaft, is constituted the first ratchet and is rotated clockwise on gear shaft, counterclockwise
The structure of locking, the second ratchet are identical as the structure of the first ratchet.
Preferably, multiple blind holes along gear shaft radial direction are equipped in the cabinet, blind hole outlet is equipped with slidable hemisphere,
Gear shaft is equipped with the card slot of multiple annulars, and hemisphere and card slot cooperation constitute gear shaft and be fixed on the intracorporal structure of case, hemisphere
Outer end is connected with snap-gauge, and the outer end of snap-gauge is fixedly connected with pressure spring, and pressure spring is fixed on the bottom end of blind hole, and constituting pressure spring always will be partly
Top dome goes out the structure of blind hole.
Preferably, the lower end of the gear shaft through cabinet and is connected with turntable, and turntable outer end is equipped with the fixed dress of turntable
It sets, fixed device is identical as the structure of clamping device.
Structure of the invention is novel, is skillfully constructed, simple to operate, protects operator, reduces occupational exposure, protects
Puerpera and fetus are protected, damage is reduced, it is serious can to reduce amniotic fluid embolism, placental abruption etc. with flexible choice break location and size
The generation of complication, guarantee of the medical safety.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is schematic three dimensional views of the present invention.
Fig. 2 is main cross section structure diagram of the present invention.
Fig. 3 is that fixed column of the present invention, threaded rod and lead screw cooperate three dimensional structure diagram.
Fig. 4 is the configuration schematic diagram of Fig. 3.
Fig. 5 is sealing ring three dimensional structure diagram of the present invention.
Fig. 6 is present invention sealing annulate shaft side three dimensional structure diagram.
Fig. 7 is the first ratchet rotational structure schematic diagram of the invention.
Fig. 8 is gear shaft slide construction schematic diagram of the present invention.
Fig. 9 is clamping device structural schematic diagram of the present invention.
Specific embodiment
1-9 is described in further details a specific embodiment of the invention with reference to the accompanying drawing.
Embodiment one, is provided by Fig. 1-6, and the present invention includes vertical cylinder 1, and cylinder 1 is cylindric, 1 lower end of cylinder warp
Connecting plate 2 is fixedly connected with cabinet 3, and connecting plate 2 is circular shape, and there are two connecting plates 2 and is arranged symmetrically, and not only increases production
The aesthetics of product, while making cabinet 3 and the fixation of cylinder 1 more firm, cabinet 3 can be also possible to circle to be rectangular,
It is indicated in this product with rectangular；
The upper end of cylinder 1 is fixed with the sealing ring 4 of taper, and the upper end of sealing ring 4 is greater than lower end, the upper surface of sealing ring 4
For a smooth face, sealing ring 4 is facilitated to contact with the placenta of puerpera, the upper end of sealing ring 4 is big mouth, facilitate fetal membrane into
Enter in sealing ring 4, the lower end of cylinder 1 is fixed with sealing-plug 5, and cylinder 1, sealing ring 4 and 5 three of sealing-plug constitute the knot of sealing
Structure；
Sealing ring 4 is equipped with first through hole 6 and the second through-hole 7, and the shape of first through hole 6 and the second through-hole 7, which can be, appoints
It anticipates shape, when pressure is greater than external pressure in cylinder 1, first through hole 6 is opened, and the sealing of the second through-hole 7 is made by first through hole 6
It is identical as the intracorporal pressure of puerpera's body to obtain cylinder 1, when pressure is less than external pressure in cylinder 1, first through hole 6 is sealed, and second is logical
Hole 7 is opened makes cylinder 1 identical as the intracorporal pressure of puerpera's body by the second through-hole 7；
Hollow fixed column 8 is slidably equipped in cylinder 1, sealing ring 4,4 inner circle of sealing ring are run through in 8 upper surface of fixed column
Face is equipped with guide groove, in guide groove can vertical sliding be equipped with guide pad, guide pad connects through guide groove and fixed column 8 are fixed
It connects, 8 lower end of fixed column is slidably connected through cylinder 1 with cabinet 3；
The piston 9 of vertical sliding is equipped in cylinder 1, piston 9 is the structure of a sealing, and 9 upper end of piston can be equipped with rubber
Glue, can generate preferable sealing effect, and the lower end of piston 9 is rotatably connected with hollow threaded rod 10, under threaded rod 10
End is threadedly coupled through sealing-plug 5 and with sealing-plug 5, and being threadedly coupled has self-locking performance, can be driven by the rotation of threaded rod 10
Piston 9 carries out vertical sliding, and 10 lower end surface of threaded rod is placed in cabinet 3 and is fixedly connected with the first idle pulley 11, and first is lazy
The top of wheel 11 is equipped with the first gear 12 being fixed on threaded rod 10, and first gear 12 is also placed in cabinet 3, first gear 12
Vertical sliding, fixed column 8 it can be placed in threaded rod 10 in cabinet 3 and can vertical sliding, fixed column 8 and spiral shell in threaded rod 10
There is gap between rasp bar 10, the rotation of threaded rod 10 will not influence the movement of fixed column 8, and threaded rod is run through in the lower end of fixed column 8
10；
Be equipped with the syringe needle 13 of vertical sliding in fixed column 8, the end of syringe needle 13 can vertical sliding be placed in the upper of fixed column 8
End top, the lower end of syringe needle 13 are rotatably connected with lead screw 14, and fixed column 8 is divided into upper prop 15 and lower prop 16, lead screw through step
14 are threadedly coupled with lower prop 16, and being threadedly coupled has self-locking performance, and the rotation of lead screw 14 pushes syringe needle 13 to slide vertically in fixed column 8
Dynamic, the lower end of lead screw 14 through lower prop 16 and is fixedly connected with second gear 17, and second gear 17 can be slided vertically in cabinet 3
Dynamic, the top of second gear 17 is equipped with the second idle pulley 18 being fixed on lead screw 14, and the second idle pulley 18 is located at the first idle pulley 11
Lower section；；
Be equipped in cabinet 3 can vertical sliding gear shaft 19, be successively arranged the first unidirectional tooth from top to bottom on gear shaft 19
Wheel 20, third idle pulley 21 and the second ratchet 22, the first ratchet 20 are the structure for rotating clockwise, locking counterclockwise,
Second ratchet 22 is locking clockwise, and the structure rotated counterclockwise, the first ratchet 20 and the second ratchet 22 are
To one-directionally rotate structure, allows and effectively controlled when operation.
When first ratchet 20 is engaged with first gear 12, the second ratchet 22 is engaged with second gear 17, third
Idle pulley 21 is not engaged with the first idle pulley 11 or the second idle pulley 18；
When third idle pulley 21 is engaged with the first idle pulley 11 or the second idle pulley 18, the first ratchet 20 not with first gear 12
Engagement, the second ratchet 22 are not engaged with second gear 17.
Embodiment two is provided by Fig. 9 on the basis of example 1, and the clamping equipped with fixed column 8 fills in the cabinet 3
It sets, clamping device is clamped to later fixed column 8 is slided, and clamping device includes two clamping plates 23, and clamping plate 23 is arc
Fixed column 8 easily can be clamped locking by the clamping plate 23 of structure, arc, so that fixed column 8 is firm after sliding
It is fixed, two clamping plates 23 are arranged symmetrically on the both ends of fixed column 8, and two clamping plates 23 do opposite movement, can be quick
Fixed column 8 carries out to holding locking, the outside of each clamping plate 23 is equipped with a rotation axis 24,24 front end of rotation axis and middle part
Screw thread is arranged with and thread rotary orientation on the contrary, 24 front end of rotation axis and middle section are threaded with a rectangular block 25, rectangle
Internal screw thread, internal screw thread and being threadedly engaged in rotation axis 24 are equipped with inside block 25, rectangular block 25 is along 24 longitudinal sliding motion of rotation axis, case
Two guide rods are fixed in body 3, guide rod slidably runs through ipsilateral rectangular block 25, so that rectangular block 25 is merely able to along rotation
24 longitudinal sliding motion of axis, each rectangular block 25 are hinged with a connecting rod 26, and the other end and clamping plate 23 of connecting rod 26 are hingedly fixed, together
Two connecting rods 26 of side are the same articulated shaft, and two ipsilateral rectangular blocks 25 are moved in opposite directions, and each rectangular block 25 is
Hingedly fixed by a connecting rod 26 and rectangular block 25, the articulated shaft of two ipsilateral connecting rods 26 is in same straight line line, so that together
25 relative motion of rectangular block of side pushes 25 horizontal movement of rectangular block, and the rear end of each rotation axis 24 is fixed with the through cabinet 3
Three gears 27, two third gears 27 are connected by gear trains, and the rotation direction of two third gears 27 is identical, and two the
Three gears 27 rotate in same direction, so that two clamping plates 23 generate opposite movement, fixed column 8 is locked, and gear train is to compare
Structure easy to accomplish, as long as the quantity of gear train internal gear is odd number, so that it may guarantee that two third gears 27 rotate in same direction,
Gear train in figure is not drawn, and in addition rotation axis 24 is threadedly coupled with rectangular block 25 with self-locking performance, can be generated well
Locking effect.
Embodiment three is provided by Fig. 5 on the basis of example 1, and the upper end of the first through hole 6 is equipped with the first sealing
First through hole 6 is sealed, is set on the first sealing cover and the hinged fixation of sealing ring 4 and articulated shaft by lid, the first sealing cover
First torsional spring can be good at being sealed first through hole 6, one end of the first torsional spring under the twisting force of the first torsional spring
It is fixedly connected with articulated shaft, the other end of the first torsional spring is fixedly connected with the first sealing cover.
Example IV is provided by Fig. 6 on the basis of example 1, and the lower end of second through-hole 7 is equipped with the second sealing
Lid, the second sealing cover are sealed through the second through-hole 7, are set on the second sealing cover and the hinged fixation of sealing ring 4 and articulated shaft
Second torsional spring can be good at being sealed the second through-hole 7, one end of the second torsional spring under the twisting force of the second torsional spring
It is fixedly connected with articulated shaft, the other end of the second torsional spring is fixedly connected with sealing cover.
Embodiment five is provided by Fig. 4 on the basis of example 1, and the vertical of arc is offered on the piston 9 and is led to
Slot, the interior sliding of through slot are equipped with vertical convex block 28, and the top and bottom of convex block 28 are respectively placed in the outside of piston 9, fixed column 8
It is a fixed structure after clamping device is fixed, convex block 28 is cooperated with through slot, can be very good to carry out piston 9
Guiding, guarantee piston 9 are merely able to carry out vertical sliding along fixed column 8, and 28 inner end of convex block is through through slot and the fixed company of fixed column 8
It connects.
Embodiment six is provided by Fig. 4 on the basis of example 1, and T-slot, T-type is arranged in 8 inner periphery of fixed column
T-block 29 is slidably equipped in slot, the outer end of T-block 29 is fixedly connected through T-slot with syringe needle 13, T-slot and T-block 29
Cooperated, composition plays the role of guiding and fixation very well, so that syringe needle 13 is merely able to be slided along fixed column 8.
Embodiment seven is provided by Fig. 1 and 2 on the basis of example 1, and the lower end of the cylinder 1 is fixed with annular
Banjo splint 30, operator clamp banjo splint 30 by index finger and middle finger, can be good at carrying out the present apparatus to clamp solid
It is fixed, while facilitating the operation of operator.
Embodiment eight is provided by Fig. 7 on the basis of example 1, is ratchet 31 on the inside of first ratchet 20,
Multiple ratchets 32 are hinged on gear shaft 19, the outside of pawl 32 is connected with spring 33, and 33 other end of spring is fixed on gear shaft
On 19, the structure that the first ratchet 20 is rotated clockwise on gear shaft 19, locked counterclockwise is constituted, gear shaft 19 is in up time
During needle rotates, 32 clamping ratchet 31 of pawl, gear shaft 19 drives the first ratchet 20 to rotate clockwise, gear shaft 19
When rotating counterclockwise, pawl 32 is rotated along ratchet 31, and gear shaft 19 dallies at this time, and the first ratchet 20 does not rotate,
Second ratchet 22 is identical as the structure of the first ratchet 20, and about the structure of the second ratchet 22, there are also transport herein
It is dynamic repeat with regard to no longer excessive.
Embodiment nine is provided by figure on the basis of example 1, is equipped in the cabinet 3 multiple along 19 diameter of gear shaft
To blind hole, blind hole outlet is equipped with slidable hemisphere 34, and gear shaft 19 is equipped with the card slot of multiple annulars, hemisphere 34 and card slot
Cooperation constitutes gear shaft 19 and is fixed on the structure in cabinet 3, and hemisphere 34 is stuck in card slot, and the position of gear shaft 19 is determined
Position, gear shaft 19 are rotated in cabinet 3, and the outer end of hemisphere 34 is connected with snap-gauge 35, and the outer end of snap-gauge 35 is fixedly connected with
Pressure spring 36, pressure spring 36 are fixed on the bottom end of blind hole, and under the action of 36 elastic force of pressure spring, hemisphere 34 is in and is ejected blind hole always
State constitutes the structure that hemisphere 34 is ejected blind hole by pressure spring 36 always so that gear shaft 19 can be good at being fixed.
Embodiment ten is provided by figure on the basis of example 2, and the lower end of the gear shaft 19 through cabinet 3 and connects
It is connected to turntable 37,37 lower end of turntable is hinged with handle, and by the rotation of rotational handle gear shaft 19,37 outer end of turntable is equipped with
The fixation device of turntable 37, fixed device is identical as the structure of clamping device, the operation part of fixed device in rear end part, this
Than more covert, operator will not touch easily for a position, increase safety.
Embodiment 11 is provided by figure on the basis of example 1, and the sealing ring 4 is equipped with to be cooperated with convex block 28
Through-hole, sealing ring 4 also plays the effect being oriented to fixed column 8.
In use, syringe needle 13 is hidden in fixed column 8, clamping device is not clamped fixed column 8 present invention, fixed
The top of column 8 is substantially concordant with the upper end of sealing ring 4, and hand holds banjo splint 30 to operator always, and cylinder 1 is inserted into
The intravaginal of puerpera, so that sealing ring 4 is contacted with the amnion of puerpera, amnion squeezes sealing ring 4 and fixed column 8 at this time, Gu
Fixed column 8 carries out a vertical sliding, because syringe needle 13 is hidden in fixed column 8, will not generate one to the amnion of extruding and puncture
Power, to will not cause unexpectedly to injure, second gear 17 and the second ratchet 22 are constantly in the state of contact, and second is single
The effect of guiding is also played to gear 22, at this time gear shaft 19 rotationally clockwise, because the first ratchet 20 is up time
Needle rotation, the structure locked counterclockwise, the first ratchet 20 rotates at this time and the second ratchet 22 is motionless, that is, gear
Axis 19, which rotates clockwise, drives first gear 12 to be rotated, and 12 rotate driving threaded rod 10 of first gear is rotated, screw thread
Bar 10 is threadedly coupled with sealing-plug 5, and sealing-plug 5 is fixedly connected with cylinder 1, and threaded rod 10 moves straight down while rotation,
First gear 12 along the downward vertical motion of the first ratchet 20, but first gear 12 and the first ratchet 20 regardless of
Moving downward from, threaded rod 10 pulls piston 9 to move straight down, and piston 9 moves downward so that generate negative pressure in cylinder 1, this
When the second through-hole 7 open, 4 border of sealing ring of amnion and sealing ring 4 generation is identical as the pressure in cylinder 1, and the absorption of amnion is more
What is added is firm, and because threaded rod 10 is fixedly connected with sealing-plug 5, being threadedly coupled has self-locking performance, so that threaded rod 10 is reliable
It is locked, that is, the position of piston 9 is reliably fixed, amnion will push 8 slide downward of fixed column during this；
After this process terminates, gear train rotation so that two clamping plates 23 move toward one another by fixed column 8 into
Row, which clamps, to be locked, and the position of fixed column 8 is locked, can not carry out activity again；
After the above process terminates, the meshing relation of second gear 17 and the second ratchet 22 is not eliminated, suitable at this time
Clockwise rotates gear shaft 19, and gear shaft 19 drives the rotation of the second ratchet 22, and the second ratchet 22 drives lead screw 14
Rotation, lead screw 14 are threadedly coupled with the lower prop 16 of fixed column 8, and fixed column 8 is fixed at this time, and 14 spiral of lead screw moves upwards,
Second gear 17 is moved along second gear 17 straight up while rotating, and syringe needle 13 moves across fixed column straight up
8 are contacted with amnion, complete artificial rupture of membrane.
After artificial rupture of membrane terminates, control 19 vertical direction of gear shaft movement first makes third idle pulley 21 and the first idle pulley
11 engagements, the first ratchet 20 is not engaged with first gear 12 at this time, and the second ratchet 22 is not engaged with second gear 17,
Gear shaft 19 is rotated counterclockwise, so that third idle pulley 21 drives threaded rod 10 to rotate, so that piston 9 is repositioned to initial bit
It sets, then 19 position of adjusting tooth wheel shaft again, so that third idle pulley 21 and the engagement of the second idle pulley 18, are repositioned to syringe needle 13
Initial position.
Whole equipment is all made of transparent material and is made, it may be convenient to the motion process for seeing the inside part, according to
The specific motion process of part judges the state and successful of rupture of membranes.
The present invention has the advantage that 1) syringe needle 13 is hidden in fixed column 8, prevents syringe needle 13 right compared with prior art
Operator's unexpected injury reduces the danger of occupational exposure, while also avoiding causing puerpera unnecessary injury；2) by solid
The judgement of slide of fixed column 8 manually touches more convincing the adsorbed state of amnion than merely；3) all operating devices
It is all integrated in cabinet 3, the process of entire rupture of membranes is completed by the positive and negative rotation of gear shaft 19, be in addition threadedly coupled with self-locking
Property, it avoids operator from surprisingly touching and causes unnecessary trouble；4) operating mechanism of clamping device and fixed device is all located at
The risk accidentally touched is reduced than more covert in the rear end of equipment, position；5) when rupture of membranes other than the column 8 that is fixedly clamped, operating mechanism is only
Sprocket drive spindle 19 reduces the risk of maloperation, increases safety when rupture of membranes；6) pass through the behaviour of a motion source both forward and reverse directions
Make, completes the process of entire rupture of membranes, it is self-locking because of screw thread, increase the safety of equipment.
Structure of the invention is novel, is skillfully constructed, simple to operate, protects operator, reduces occupational exposure, protects
Puerpera and fetus are protected, damage is reduced, it is serious can to reduce amniotic fluid embolism, placental abruption etc. with flexible choice break location and size
The generation of complication, guarantee of the medical safety.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of new-type Manual membrane rupturing device, including vertical cylinder (1), cylinder (1) lower end is fixedly connected through connecting plate (2)
Have cabinet (3), the upper end of cylinder (1) is fixed with the sealing ring (4) of taper, and the upper end of sealing ring (4) is greater than lower end, cylinder (1)
Lower end be fixed with sealing-plug (5), cylinder (1), sealing ring (4) and sealing-plug (5) three constitute the structure of sealing, and feature exists
In, the sealing ring (4) is equipped with first through hole (6) and the second through-hole (7), when cylinder (1) interior pressure is greater than external pressure, the
One through-hole (6) is opened, the second through-hole (7) sealing, when cylinder (1) interior pressure is less than external pressure, first through hole (6) sealing, the
Two through-holes (7) are opened；
Hollow fixed column (8) is slidably equipped in cylinder (1), sealing ring (4) are run through in fixed column (8) upper surface, fixed column
(8) lower end is slidably connected through cylinder (1) with cabinet (3)；
The piston (9) of vertical sliding is equipped in cylinder (1), the lower end of piston (9) is rotatably connected with hollow threaded rod
(10), threaded rod (10) lower end is threadedly coupled through sealing-plug (5) and with sealing-plug (5), and threaded rod (10) lower end surface is placed in case
It in body (3) and is fixedly connected with the first idle pulley (11), first be fixed on threaded rod (10) is equipped with above the first idle pulley (11)
Gear (12), fixed column (8) be placed in threaded rod (10) and in threaded rod (10) can vertical sliding, the lower end of fixed column (8)
Through threaded rod (10)；
The syringe needle (13) of vertical sliding is equipped in fixed column (8), the lower end of syringe needle (13) is rotatably connected with lead screw (14), Gu
Fixed column (8) is divided into upper prop (15) and lower prop (16) through step, and lead screw (14) is threadedly coupled with lower prop (16), the lower end of lead screw (14)
It through lower prop (16) and is fixedly connected with second gear (17), the be fixed on lead screw (14) is equipped with above second gear (17)
Two idle pulleys (18)；
Be equipped in cabinet (3) can vertical sliding gear shaft (19), it is unidirectional to be successively arranged first from top to bottom on gear shaft (19)
Gear (20), third idle pulley (21) and the second ratchet (22), the first ratchet (20) are to rotate clockwise, lock counterclockwise
Fixed structure, the second ratchet (22) are the structure for locking, rotating counterclockwise clockwise；
When first ratchet (20) is engaged with first gear (12), the second ratchet (22) is engaged with second gear (17),
Third idle pulley (21) does not engage with the first idle pulley (11) or the second idle pulley (18)；
When third idle pulley (21) is engaged with the first idle pulley (11) or the second idle pulley (18), the first ratchet (20) not with the first tooth
(12) engagement is taken turns, the second ratchet (22) is not engaged with second gear (17).
2. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that be equipped in the cabinet (3)
The clamping device of fixed column (8), clamping device include two clamping plates (23), and two clamping plates (23) are arranged symmetrically on fixed column
(8) both ends, the outside of each clamping plate (23) are equipped with a rotation axis (24), and rotation axis (24) front end and middle section are equipped with spiral shell
Line and thread rotary orientation are on the contrary, rotation axis (24) front end and middle section are threaded with a rectangular block (25), rectangular block
(25) along rotation axis (24) longitudinal sliding motion, each rectangular block (25) is hinged with a connecting rod (26), the other end of connecting rod (26)
Hingedly fixed with clamping plate (23), two connecting rods (26) of the same side are the same articulated shaft, and the rear end of each rotation axis (24) is passed through
It wears cabinet (3) to be fixed with third gear (27), two third gears (27) connect by gear train, two third gears
(27) rotation direction is identical.
3. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that the first through hole (6)
Upper end is equipped with the first sealing cover, is set with the first torsional spring in the hinged fixation in the first sealing cover and sealing ring (4) and articulated shaft, and first
One end of torsional spring is fixedly connected with articulated shaft, and the other end of the first torsional spring is fixedly connected with the first sealing cover.
4. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that second through-hole (7)
Lower end is equipped with the second sealing cover, is set with the second torsional spring in the hinged fixation in the second sealing cover and sealing ring (4) and articulated shaft, and second
One end of torsional spring is fixedly connected with articulated shaft, and the other end of the second torsional spring is fixedly connected with sealing cover.
5. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that opened up on the piston (9)
There is the vertical through slot of arc, that slides in through slot is equipped with vertical convex block (28), and the top and bottom of convex block (28) are set respectively
In the outside of piston (9), convex block (28) inner end is fixedly connected through through slot with fixed column (8).
6. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that fixed column (8) inner circle
T-slot is set in week, is slidably equipped with T-block (29) in T-slot, the outer end of T-block (29) is solid through T-slot and syringe needle (13)
Fixed connection.
7. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that the lower end of the cylinder (1)
It is fixed with the banjo splint (30) of annular.
8. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that first ratchet
(20) inside is ratchet (31), is hinged with multiple ratchets (32) on gear shaft (19), pawl is connected with spring on the outside of (32)
(33), spring (33) other end is fixed on gear shaft (19), constitutes the first ratchet (20) up time on gear shaft (19)
The structure that needle is rotated, locked counterclockwise, the second ratchet (22) are identical as the structure of the first ratchet (20).
9. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that be equipped in the cabinet (3)
Multiple blind holes along gear shaft (19) radial direction, blind hole outlet are equipped with slidable hemisphere (34), and gear shaft (19) is equipped with multiple
The card slot of annular, hemisphere (34) and card slot cooperation constitute gear shaft (19) and are fixed on the structure in cabinet (3), hemisphere (34) it is outer
End is connected with snap-gauge (35), and the outer end of snap-gauge (35) is fixedly connected with pressure spring (36), and pressure spring (36) is fixed on the bottom end of blind hole, structure
At pressure spring (36) always by the structure of hemisphere (34) ejection blind hole.
10. the new-type Manual membrane rupturing device of one kind according to claim 1, which is characterized in that the gear shaft (19)
Through cabinet (3) and being connected with turntable (37), turntable (37) outer end is equipped with the fixation device of turntable (37) for lower end, fixed device with
The structure of clamping device is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816695.9A CN108926379B (en) | 2018-07-24 | 2018-07-24 | Novel artificial membrane rupturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816695.9A CN108926379B (en) | 2018-07-24 | 2018-07-24 | Novel artificial membrane rupturing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108926379A true CN108926379A (en) | 2018-12-04 |
| CN108926379B CN108926379B (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816695.9A Expired - Fee Related CN108926379B (en) | 2018-07-24 | 2018-07-24 | Novel artificial membrane rupturing device |
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| Country | Link |
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| CN (1) | CN108926379B (en) |
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| CN112022308A (en) * | 2020-09-09 | 2020-12-04 | 乔娜 | Obstetrical department is clinical with preventing outer flow rupture of membranes device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108926379B (en) | 2021-02-19 |
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Inventor after: Liu Yang Inventor after: Zhang Zhilei Inventor after: Liu Mengying Inventor after: Song Huangbei Inventor after: Yang Kai Inventor before: Yang Kai |
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Effective date of registration: 20210120 Address after: 266034 Tongfu Road, city, Qingdao City, Shandong Province, No. 6 Applicant after: QINGDAO WOMEN AND CHILDREN'S Hospital Address before: 450000, No.1, Jianshe East Road, Zhengzhou City, Henan Province Applicant before: Yang Kai |
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