CN205569496U - A birth canal expander for spontaneous labor - Google Patents

Abstract

The utility model discloses a birth canal expander for spontaneous labor, a serial communication port, including cylinder cage body, these cage body rear end central authorities are fixed with a nut, and this nut and a vertical drive mechanism of screw rod meshing formation screw nut convert the circular motion of screw rod into the linear motion of tip under the screw rod, the tip gathers the pole dish through connecting piece and one and links to each other under the screw rod, should gather 4 at least dispensing orifices of the pole peripheral equipartition of dish, links firmly an extension lever's upper end on every dispensing orifice, peripheral dispensing orifice quantity and the corresponding guiding hole in position are coiled with gathering the pole to the setting on the front end circumference of the cylinder cage body, and every extension lever lower extreme stretches out to loudspeaker form below the cage body front end after passing each self -corresponding guiding hole, each extension lever front end all is equipped with the pole head for, is locked extension lever when drawing in in.

Description

A kind of birth canal dilator for spontaneous labor

Technical field

This utility model relates to department of obstetrics and gynecology childbirth auxiliary implement, produces in the progress of labor particularly to one When difficulty occurs producing in woman, birth canal is carried out the device of lossless expansion.

Background technology

In recent years, along with popularizing of prenatal and postnatal care knowledge, the fast development of reproductive medicine, national two tires The appearance of policy, polyembryony can increase year by year, and the crowd of spontaneous labor can get more and more.But, During spontaneous labor process, being typically passed through two stagess of labor, wherein first stage of labor is from the uterine contraction of rule Open big 10 centimetres to palace mouth, be that whole birth process lasts a longest stages of labor, continue 11～ 12 hours, now, puerpera can consume substantial amounts of muscle power.To second stage of labor, uterine contraction is strengthened, Chan Fukai Beginning occur thinking the sensation of bowel movement, force of labor also greatly enhances, uterus and abdominal muscles, pelvic diaphragm muscle meeting Promoting baby to give birth to from vagina (also referred to as birth canal), now, puerpera may feel that baby portion youngster's head is to meeting There is a kind of pressure at cloudy rear portion, forces puerpera when each uterine contraction, exerts oneself downwards, baby Can move down bit by bit in pelvis, but at the end of each uterine contraction, he also can retract, But can keep down and move little by little.When baby head is through pelvis, when starting to strut vaginal orifice, Puerpera there may be a kind of warm, sensation of twinge, and this stage is that baby head " hat " Risk stages, now, major part doctor takes obstetric forceps or cuts perineal position (birth canal is made a slip of the tongue little) two The method of kind.But, owing to existing obstetric forceps is that rustless steel is made, own temperature is with human body temperature contrast relatively Greatly, as easy as rolling off a log stimulation birth canal, cause uterine contraction, meanwhile, to puerpera's birth canal and baby head, face is made Become indirect trauma.And cut the way of perineum, then puerpera perineum portion is caused coup injury, easily feel Dye, and the postpartum recovery time is long.

Summary of the invention

The purpose of this utility model is to provide a kind of puerpera in second stage of labor, occur producing unable, produce During the situations such as road junction is too small, puerpera is helped to expand a kind of midwifery device of birth canal mouth in conjunction with smearing medicine.

For reaching object above, this utility model adopts the following technical scheme that and is achieved:

A kind of birth canal dilator for spontaneous labor, it is characterised in that include a cylindrical shape cage body, These cage body rear end central authorities are fixed with a nut, and this nut and a screw rod engaging become leading screw nut vertical Drive mechanism, is converted to the linear motion of screw rod bottom by the circular motion of screw rod；Screw rod bottom It is connected by the poly-bar dish of connector and, these poly-uniform at least 4 dispensing orifices of bar dish periphery, each The upper end of a connected expanding bar on dispensing orifice；The front end of described cylindrical shape cage body is provided circumferentially about and poly- Bar dish perimeter distribution hole number and the corresponding pilot hole in position, each expanding bar lower end is through the most corresponding Pilot hole after horn-like below cage body front end stretch out；Described each expanding bar front end is equipped with head, For locked when expanding bar is drawn in.

In such scheme, described cylindrical shape cage body includes front ring that size and shape is identical and rear ring, front Ring is connected by least 3 vertical struts along two ring circumference uniform distributions with rear ring.

The nut that described cage body rear end central authorities are fixed is by least three radial equipartitions on rear plane of a loop Horizontal strut realizes.

Described connector includes the spheroid that screw front end connects, and is arranged above with one at poly-bar dish simultaneously Individual ball-and-socket body；The ball-and-socket of this spheroid edge goal nest body forms ball pivot connect.

The head of described expanding bar front end, is smooth (flat) olive greater diameter than bar footpath when facing Olive shape.This head described bends in cage body, and the angle of bending is at least 150 °.

It is provided with dismountable rubber finger sleeve on described expanding bar front end and head.

Compared with the method for obstetric forceps or incision perineal position, the utility model has the advantages that:

1, producing entrance second stage as puerpera, it is front that baby head " hat ", by the head of expanding bar Six deciles insert in vaginal orifice, smear medicine in conjunction with vagina periphery and carry out the painless expansion of vagina, now, Nursing staff with hand steered live in puerpera perineum part, it is ensured that one week uniform force of puerpera's vaginal orifice, Meanwhile, puerpera's vagina will not be made to tear from perineal position.

2, whole dilator can be with autoclave sterilization, it is ensured that reach sterility requirements in operation.

3, expanding bar head is smooth flat olive-shaped, on the one hand can reduce head by increasing contact surface Damage to vaginal walls, on the other hand overcomes the head scratch to baby head.

4, designed dismountable silica gel sheath is more comfortable when contacting human body skin, and overcoming foreign body stimulates Produce uterine contraction unfavorable to producing.

5, on the one hand the cage body structure of dilator meets the normal observation of medical personnel, the most favourable Operate in medical personnel, meanwhile, the most do not affect overall structure.

Accompanying drawing explanation

Fig. 1, Fig. 2 are the structural representation of this utility model device.Wherein, Fig. 1 is rounding state； Fig. 2 position open configuration.

Fig. 3 is the A portion enlarged drawing in Fig. 2.

Fig. 4 is the B portion enlarged drawing in Fig. 2.

Fig. 5 is the C portion enlarged drawing in Fig. 2.Wherein, a figure is front view；B figure is side view.

Fig. 6 is the D portion enlarged drawing in Fig. 3.

In Fig. 1～Fig. 5: 1, hands 2, screw rod；3, nut；4, rear ring；5, expanding bar；6、 Vertical struts；7, head；8, front ring；9, poly-bar dish；10, horizontal strut；11, connector； 12, spheroid；13 ball-and-socket bodies；14, pilot hole；15, dispensing orifice.

Detailed description of the invention

Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.

With reference to Fig. 1, Fig. 2, a kind of birth canal dilator for spontaneous labor, including size and shape phase Same front ring 8 and rear ring 4, front ring 8 (lower ring) and rear ring 4 (upper ring) are by along two ring circumference uniform distributions 4 vertical struts 6 connect into a cylindrical shape cage body, wherein after on plane of a loop by 4 levels Pole 10 is criss-cross is positioned at rear ring central authorities, nut 3 and a upper end band handle by a nut 3 Screw rod 2 engaging of 1 becomes leading screw nut vertical drive mechanism, and the circular motion of screw rod is converted to spiral shell The linear motion of bar bottom.The bottom of screw rod 2 is connected with poly-bar dish 9 by a connector 11, This poly-bar dish can be driven to move up and down when screw rod bottom moves linearly.Uniform 6 of poly-bar dish periphery Dispensing orifice 15, each dispensing orifice is all connected with the upper end (Fig. 6) of an expanding bar 5.Front ring 8 circumference Being evenly equipped with 6 pilot holes 14 (Fig. 4) corresponding to poly-bar dish dispensing orifice, each expanding bar lower end is worn Cross and forwards realize horn mouth expansion (Fig. 2) each self-corresponding pilot hole tailing edge front ring week.

With reference to Fig. 3, the connector 11 in Fig. 1 can be that screw front end connects a spheroid 12, simultaneously It is arranged above with a ball-and-socket body 13 at poly-bar dish；The ball-and-socket of spheroid edge goal nest body forms ball pivot even Connect, make ball-and-socket body 13 stress move down the rotation not following spheroid.

With reference to Fig. 5, it is the smooth head 7 of the olive shape greater diameter than bar footpath when expanding bar front end is faced, And this head bends in cage body, and the angle of bending is at least 150 ° (Fig. 5 b).Work as dilator During gathering, owing to head is bigger than pilot hole 14, therefore lockable expanding bar is not fallen in cage body.

Dismountable rubber finger sleeve/silica gel sheath (being not drawn in figure) it is provided with on expanding bar front end and head, Medicine can be smeared, in order to insert vaginal orifice smoothly and implement expansion on rubber finger sleeve, can't be to vaginal walls Cause damage.

The birth canal dilator of the present embodiment, cylindrical shape cage body can use stainless steel strip to make, cage body diameter Less than 5 centimetres, length is less than 18 centimetres, and expanding bar 5 can use rigidity and certain elastic Nonmetallic materials (such as high molecular polymers such as nylon, polyurethane, PC) are made, a length of 20 lis About meter, the stimulation that rustless steel is ice-cold can be eliminated.

This utility model birth canal dilator is before use for the rounding state shown in Fig. 1, the baby of childbirth Youngster's head " hat " stage, by 6 expansion head in Fig. 1 rounding state dilator cage body front ring 7 (equipped with rubber finger sleeves and smear medicine) slowly insert from puerpera's vaginal orifice periphery, and then a hands holds Living cylindrical shape cage body, screw rod is implemented to rotate, by screw rod bottom by another hands by handle 1 Screw nut driven mechanism urges poly-bar dish does linear motion forward, and each expanding bar is moved in poly-bar dribbling Do taper by the pilot hole in front ring to stretch out simultaneously, make expanding bar leading section expand (Fig. 2), from And realize the expansion of vaginal orifice.Along with vaginal orifice gradually expands, cylindrical shape cage body gradually should be shunk back, This point must be noted that.Birth canal expansion demand, can be according to the size of puerpera's vaginal orifice, pushing away by screw rod Entering length to determine, maximum extension that 6 expanding bar head surround is a diameter of is less than 12 centimetres.

This utility model is not limited to above example, and the upper end such as expanding bar 5 is distributed with poly-bar dish The connection in hole, in addition to using fixing connection (Fig. 6), also can use hook to connect.Expanding bar is also had to exist Guidance mode in front ring 8 can be to be Fig. 4 form of running through pilot hole, it is also possible to arranges in front ring Other small circle ring is for the guiding of expanding bar.In addition the quantity of expanding bar also differs and is set to the six roots of sensation, can To use 4 or 8 as required, it is also possible to be odd number (such as 5,7).

Claims (7)

1. the birth canal dilator for spontaneous labor, it is characterised in that include a cylindrical cage Body, these cage body rear end central authorities are fixed with a nut, and this nut and a screw rod engaging become feed screw nut Vertically drive mechanism, is converted to the linear motion of screw rod bottom by the circular motion of screw rod；Under screw rod End is connected by connector and a poly-bar dish, these poly-uniform at least 4 dispensing orifices of bar dish periphery, The upper end of a connected expanding bar on each dispensing orifice；The front end of described cylindrical shape cage body is provided circumferentially about With poly-bar dish perimeter distribution hole number and the corresponding pilot hole in position, each expanding bar lower end is through each Horn-like below cage body front end after corresponding pilot hole stretch out；Described each expanding bar front end is equipped with bar Head, for locked when expanding bar is drawn in.

2. the birth canal dilator for spontaneous labor as claimed in claim 1, it is characterised in that institute Stating front ring and rear ring that cylindrical shape cage body includes that size and shape is identical, front ring and rear ring are by along two ring circles At least 3 vertical struts of Zhou Junbu connect.

3. the birth canal dilator for spontaneous labor as claimed in claim 2, it is characterised in that institute The nut stating cage body rear end central authorities fixing is to be propped up by the level of at least three radial equipartitions on rear plane of a loop Bar realizes.

4. the birth canal dilator for spontaneous labor as claimed in claim 1, it is characterised in that Described connector includes the spheroid that screw front end connects, and is arranged above with a ball at poly-bar dish simultaneously Nest body；The ball-and-socket of this spheroid edge goal nest body forms ball pivot connect.

5. the birth canal dilator for spontaneous labor as claimed in claim 1, it is characterised in that institute State the head of expanding bar front end, be the smooth Fructus Canarii albi shape greater diameter than bar footpath when facing.

6. the birth canal dilator for spontaneous labor as claimed in claim 5, it is characterised in that institute Stating head to bend in cage body, the angle of bending is at least 150 °.

7. the birth canal dilator for spontaneous labor as described in claim 5 or 6, it is characterised in that It is provided with dismountable rubber finger sleeve on described expanding bar front end and head.