CN209661755U - A kind of cervical dilator bar with water pocket - Google Patents
A kind of cervical dilator bar with water pocket Download PDFInfo
- Publication number
- CN209661755U CN209661755U CN201821614581.8U CN201821614581U CN209661755U CN 209661755 U CN209661755 U CN 209661755U CN 201821614581 U CN201821614581 U CN 201821614581U CN 209661755 U CN209661755 U CN 209661755U
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- water
- main pipe
- water pocket
- pressure
- cervical dilator
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Abstract
The utility model discloses a kind of cervical dilator bars with water pocket, it is characterized by comprising the main pipe for being internally provided with waterflood path and the water pocket that main pipe front end can inwardly be filled the water by waterflood path is set, the pressure limiting device for draining pressure release outward automatically when hydraulic pressure is more than to limit pressure is provided on the main pipe.The utility model can make the hydraulic pressure control in water pocket under the safe hydraulic pressure of restriction, avoid causing hydraulic pressure is excessively high to expand water pocket excessively because of misoperation by setting pressure limiting device, damage uterine neck, use the utility model safer.
Description
Technical field
The utility model relates to a kind of cervix dilatation device, in particular to a kind of cervical dilator bar with water pocket.
Background technique
Cervical dilatation is artificial abortion in gynecology operation (being the current main means for stopping unscheduled pregnancy), is placed or taken out in utero
The steps necessary of contraceptive, the preoperative gynecological surgery for needing cervix dilating.Cervical dilator is currently used for the main of cervical dilatation
Instrument.Currently, a kind of common cervical dilator include it is leading, main pipe front end is provided with expandable water pocket, pass through to
Water filling expands water pocket in water pocket, to realize the purpose of cervical dilatation.But the cervical dilator is complete due to the injecting process
It manually operates entirely, in actual use, internal hydraulic pressure is difficult to control, and is be easy to cause hydraulic pressure excessively high, is kept water pocket excessive
Expansion gently then causes certain pain to patient, heavy then can damage uterine neck.
Such as: China Patent Publication No. CN2489798, a kind of entitled continuous adjustable liquid uterine neck expansion of utility model
Prop is made of cervical dilatation capsule and water injection pipe, cervical dilatation capsule front end be equipped with dialatation of cervical os capsule, water injection pipe respectively with palace
Neck mouth expansion capsule is connected to cervical dilatation capsule, and medicine-pouring pipe is inserted into along water injection pipe.The utility model due to being not provided with pressure limiting device,
In actual operation, the hydraulic pressure in the intracapsular portion of cervical dilatation is difficult to control, and be easy to cause cervical dilatation capsule excessively to expand to damage
Uterine neck.
Summary of the invention
The purpose of this utility model is to solve existing cervical dilator to be easy to cause hydraulic pressure mistake when filling the water into water pocket
Height makes water pocket excessively expand the problem of causing cervical lesions, provides a kind of cervical dilator bar with water pocket, can effectively solve the problem that
State problem.
The purpose of this utility model is achieved by the following technical solution: a kind of cervical dilator bar with water pocket, special
Sign is: can inwardly be filled the water by waterflood path including being internally provided with the main pipe of waterflood path and being arranged in main pipe front end
Water pocket, the pressure limiting device for draining pressure release outward automatically when hydraulic pressure is more than to limit pressure is provided on the main pipe.
When the utility model is used, main pipe is first inserted into cervix opening, it is located at water pocket at cervix opening, then passes through note
Emitter is filled the water into water pocket.Water enters water pocket by waterflood path, expands water pocket, to realize the purpose of cervix dilating.Institute
State pressure limiting device can hydraulic pressure be more than limit pressure when drain pressure release outward automatically, make hydraulic pressure control always limit pressure it
Under, it avoids causing hydraulic pressure is excessively high to expand water pocket excessively because of misoperation, damages uterine neck, use the utility model more
Safety.
Preferably, forming water-injecting cavity between the water pocket and main pipe, at least one use is provided on the main pipe
In the through-hole of connection water-injecting cavity and waterflood path.
Preferably, the pressure limiting device includes the shell being connected on main pipe, it is provided with and fills the water in the shell
The cavity of channel connection, is provided with valve port in the cavity, valve body is connected on the valve port, is set between the valve body and shell
It is equipped with spring, the second water-collecting bag being connected to the cavity of interior of shell is connected on the shell.The pressure limiting device it is specific
The course of work is as follows: when hydraulic pressure is more than the safe hydraulic pressure of setting, the power that water acts on valve body overcomes the resistance of spring by valve
Body is washed open, and water flows into the second water-collecting bag by valve port, has achieved the purpose that drain pressure release；When hydraulic pressure drops to the safe water of setting
When pressure is following, valve body close port under the elastic force effect of spring cuts off pressure release passage.By the way that pressure limiting device is arranged, can avoid
Because misoperation causes hydraulic pressure is excessively high to expand water pocket excessively, uterine neck is damaged, uses the utility model safer.
Preferably, being provided with the connecting tube of connection syringe and main pipe on the main pipe.
Preferably, being provided with check valve in the connecting tube and positioned at connection tube end for connecting the company of syringe
Connector.The check valve can prevent water from flowing back.
Preferably, being provided with the first water-collecting bag on the main pipe, it is provided in first water-collecting bag logical with water filling
The junction of the water containing chamber of road connection, the first water-collecting bag and main pipe is provided with switch valve.After the completion of expansion, valve is turned on the switch,
Water in water pocket is discharged into the first water-collecting bag, shrinks water pocket, convenient for extracting main pipe from cervix opening.In case of emergency,
Openable switch valve moves the water to flow into the first water-collecting bag to realize the purpose of quick pressure releasing.
Preferably, the rear end of main pipe is arranged in first water-collecting bag.
The beneficial effects of the utility model are: the utility model can make the hydraulic pressure in water pocket by setting pressure limiting device
Control avoids causing hydraulic pressure is excessively high to expand water pocket excessively because of misoperation under the safe hydraulic pressure of restriction, damages uterine neck, makes
The utility model uses safer.
Detailed description of the invention
Fig. 1 is the structure sectional view of the utility model.
Fig. 2 is the portion A enlarged drawing in Fig. 1.
Fig. 3 is the portion B enlarged drawing in Fig. 1.
In figure: 1, main pipe, 2, water pocket, 3, connecting tube, 4, check valve, 5, connector, 6, switch valve, 7, first catchments
Bag, the 8, second water-collecting bag, 9, through-hole, 10, shell, 11, spring, 12, valve body.
Specific embodiment
The utility model is further described below by specific embodiment and in conjunction with attached drawing.
Embodiment: as shown in Figure 1 to Figure 3, a kind of cervical dilator bar with water pocket, including main pipe 1.The main pipe 1
In tubular structure closed at both ends.The main pipe 1 is internally provided with waterflood path.1 front end of main pipe is arc-shaped.Institute
It states 1 rear end of main pipe and is connected with the first water-collecting bag 7.First water-collecting bag 7 is made of soft material.First water-collecting bag 7
Interior the first water chamber for forming variable volume.The first water inlet is provided on first water-collecting bag 7.First water inlet connects
It connects in 1 rear end of main pipe.First water chamber is connected to by the first water inlet with the waterflood path in main pipe 1.Described
Switch valve 6 is provided on one water inlet.The valve 6 that opens the light is used to open or closes the first water inlet.It is set on the main pipe 1
It is equipped with the connecting tube 3 for connecting syringe.The connecting tube 3 is connected to the waterflood path inside main pipe 1.The connecting tube
3 ends are provided with connector 5.The connector is cylinder-like structure open at one end, can be socketed injection port on the injector
On.The connector 5 is connected with the injection port of syringe.The check valve 4 for preventing aqueous reflux is additionally provided in the connecting tube 3.
Expandable water pocket 2 is provided on the main pipe 1.The water pocket 2 is apart from front end 10-15 millimeters of main pipe 1.Institute
State the outside that water pocket 2 is wrapped in main pipe 1.The water pocket 2 by medical latex, medical silica-gel or other it is soft and have elasticity
Material be made.In the present embodiment, the water pocket 2 is made of medical latex.Volume is formed between the water pocket 2 and main pipe 1
Variable water-injecting cavity.Several through-holes 9 are provided on the main pipe 1.In the present embodiment, the through-hole 9 is altogether there are four settings.
The water-injecting cavity is connected to by through-hole 9 with the waterflood path in main pipe 1.
Pressure limiting device is additionally provided on the main pipe 1.The pressure limiting device includes shell 10.The shell 10 is cylinder
Shape structure.The shell 10 is internally provided with the cavity of cylindrical body.Wherein one end is open end to the shell 10.The shell 10
Open end be connected with main pipe 1.Cavity in the shell 10 is connected to the waterflood path in main pipe 1.The shell 10
Open end be provided with circular valve port.The valve body 12 to match with the valve port is provided on the valve port.The valve body 12
It can be relatively moved with valve port.The valve body 12 is truncated cone-shaped.Spring is provided between the valve body 12 and the inner face of shell 10
11.The other end of the shell 10 is connected with the second water-collecting bag 8.Second water-collecting bag 8 is made of soft material.Described second
The second water chamber of variable volume is formed in water-collecting bag 8.The second water inlet is provided on second water-collecting bag 8.Described second
Water inlet is connected with shell 10.Second water chamber is connected to by the second water inlet with the cavity inside shell 10.
When the utility model is used, main pipe is first inserted into cervix opening, be located at water pocket at cervix opening, by connector with
Syringe is connected, and is filled the water by syringe into main pipe, and water reaches in water pocket after passing sequentially through connecting tube, waterflood path, makes
Water pocket expansion, expands uterine neck.After the completion of expansion, valve is turned on the switch, the water in water pocket is made to be discharged into the first water-collecting bag, water pocket
It shrinks, extracts main pipe.The pressure limiting device plays the role of limiting hydraulic pressure, prevents hydraulic pressure is excessively high from water pocket being made excessively to expand and damage
Hurt cervix opening.The specific work process of pressure limiting device is as follows: when hydraulic pressure is more than the safe hydraulic pressure of setting, water is acted on valve body
Power overcome the resistance of spring to wash valve body open, water by valve port flow into the second water-collecting bag, achieved the purpose that drain pressure release；When
When hydraulic pressure drops to the safe hydraulic pressure of setting or less, valve body close port under the elastic force effect of spring cuts off pressure release passage.In
In emergency circumstances, also openable switch valve, moves the water to flow into the first water-collecting bag to realize the purpose of quick pressure releasing.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of cervical dilator bar with water pocket, it is characterised in that: including being internally provided with the main pipe (1) of waterflood path and setting
Setting can be provided in hydraulic pressure on the main pipe (1) by the water pocket (2) that waterflood path inwardly fills the water in main pipe (1) front end
More than the pressure limiting device for draining pressure release when limiting pressure outward automatically.
2. a kind of cervical dilator bar with water pocket according to claim 1, which is characterized in that the water pocket (2) and leading
Water-injecting cavity is formed between pipe (1), at least one is provided on the main pipe (1) for being connected to the logical of water-injecting cavity and waterflood path
Hole (9).
3. a kind of cervical dilator bar with water pocket according to claim 1, which is characterized in that the pressure limiting device includes connecting
It connects the shell (10) on main pipe (1), is provided with the cavity being connected to waterflood path in the shell (10), in the cavity
It is provided with valve port, is connected on the valve port valve body (12), is provided with spring (11) between the valve body (12) and shell (10),
The second water-collecting bag (8) that the cavity internal with shell (10) is connected to is connected on the shell (10).
4. a kind of cervical dilator bar with water pocket according to claim 1 or 2 or 3, which is characterized in that the main pipe
(1) connecting tube (3) of connection syringe and main pipe (1) is provided on.
5. a kind of cervical dilator bar with water pocket according to claim 4, which is characterized in that set on the connecting tube (3)
It is equipped with check valve (4) and is located at the connector (5) for being used to connect syringe of connecting tube (3) end.
6. a kind of cervical dilator bar with water pocket according to claim 1 or 2 or 3, which is characterized in that the main pipe
(1) it is provided on the first water-collecting bag (7), is provided with the water containing chamber being connected to waterflood path in first water-collecting bag (7), first
The junction of water-collecting bag (7) and main pipe (1) is provided with switch valve (6).
7. a kind of cervical dilator bar with water pocket according to claim 6, which is characterized in that first water-collecting bag (7)
Rear end in main pipe (1) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614581.8U CN209661755U (en) | 2018-09-30 | 2018-09-30 | A kind of cervical dilator bar with water pocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614581.8U CN209661755U (en) | 2018-09-30 | 2018-09-30 | A kind of cervical dilator bar with water pocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209661755U true CN209661755U (en) | 2019-11-22 |
Family
ID=68560406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821614581.8U Active CN209661755U (en) | 2018-09-30 | 2018-09-30 | A kind of cervical dilator bar with water pocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209661755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529022A (en) * | 2020-05-28 | 2020-08-14 | 唐乾坤 | Disposable water bag for induction of labor in middle-term pregnancy |
-
2018
- 2018-09-30 CN CN201821614581.8U patent/CN209661755U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529022A (en) * | 2020-05-28 | 2020-08-14 | 唐乾坤 | Disposable water bag for induction of labor in middle-term pregnancy |
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