CN2152562Y - Air-pressure cervical dilator - Google Patents

Abstract

The utility model relates to an air-pressure cervical dilator which belongs to a gynecologic operating instrument. On the basis of a front half part body of a prime hydraulic pressure cervical dilator, the utility model is provided with an elastic air bag which is additionally provided with a one-way inlet and outlet valve, and can be formed in the shape of hinge. The compression position of the air bag is reserved by a ratchet. The utility model reserves the mode of action of gradual and continuous soft expanding, and has the advantages of simple structure, convenient operation, easy production, and different forms of general-purpose or disposable instrument.

Description

Air-pressure cervical dilator

This utility model belongs to gynecologic operating instruments, is used for cervical dilatation.

Cervical dilator is gynecological's operating theater instruments commonly used, metallic rod shaped dilator simple in structure, operate also uncomplicated, but to operation receiveing person's stimulation more very.The hydraulic pressure cervical dilator has then alleviated the stimulation to the operation receiveing person, but need join liquid and the corresponding apparatus that transmits expansionary force in addition, increases associated auxiliary operation, therefore uses also to be restricted.

This utility model purpose provides the apparatus structure scheme that realizes cervix dilating in the air pressure mode.

This utility model purpose is to realize like this, Pneumatic cervical dilator comprises to be made blind pipe, the bending that adapts to the human body corresponding site is being arranged near the cecum, be shaped on the body of linking up the through hole inside and outside the blind pipe on the bending section tube wall, also is with the soft cover of annular tension elasticity that topped this place's through hole, two ends all are sealed and matched with the body tube wall at the body bending section; The air bag that also is associated with simultaneously and can produces pressed gas, communicates and be sealed and matched with body with blind pipe at body blind pipe opening.Like this, the pressure that air bag produces can pass to the soft cover of tension force through blind pipe by gas, produces expansionary force, is expansion state and can by soft capsule spring return original state, can be the taking-up state after removing pressurization.Thereby realized the purpose of this utility model.

This utility model is provided with the ratchet of fixation balloon compression position and the clamp that matches with it on air bag.Because fixedly compression position has been kept the pressure that air bag is exported, and can guarantee that the soft cover of elasticity on the body is in needed expansion state when executing art.The cooperation of removing ratchet can restore to the original state.

Cooperate through the sealing conical surface seal between this utility model air bag and body, unidirectional check air outlet valve is housed in the air bag exit.Conical surface seal reliably is convenient to dismounting again, and unidirectional check air outlet valve then can be kept the expansion pressure of having set up in the blind pipe.

This utility model all is equipped with the unidirectional non-return valve of respective direction at the import and export of air bag, like this, can guarantee gas unidirectional motion in the air bag course of action, thereby sets up reliable pressure output.

This utility model air bag is made the elasticity hinging type, can make dilator deposit volume-diminished.

This utility model can be the various combinations of These characteristics, to have multiple characteristics concurrently, adapts to different demands.

This utility model utilizes the combination of prior art, has simplified the structure of cervix dilating apparatus, has reduced operation sequence, has kept the hydraulic pressure cervical dilator gradual change advantage of expansion continuously simultaneously again, has relaxed the stimulation to the operation receiveing person.According to selecting the material difference for use, this utility model can be made the different types of commonly used or disposable apparatus, satisfies different instructions for uses.Simple in structure being easy to of this utility model made, and be with low cost.

Accompanying drawing has provided the structural representation of this utility model embodiment.

Fig. 1 monoblock type Pneumatic cervical dilator;

Fig. 2 is a BAIYE air bag cervical dilator;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the A-A profile of Fig. 2;

Fig. 5 has the dilator of unidirectional air outlet valve for air bag;

Fig. 6 is an air bag air outlet valve place enlarged drawing among Fig. 5;

Fig. 7 is an air bag porch enlarged drawing among Fig. 5;

Fig. 8 has the dilator of breather cheek valve for air bag among Fig. 5;

Fig. 9 is the B-B cutaway view of Fig. 8.

Among the figure: 1, the soft cover 2 of elasticity, through hole 3, body 4, air bag 5, hinged joint 6, clamp 7, ratchet 8, ring gear 9, impeller 10, pore 11, air outlet valve 12, pore 13, air bag blind pipe 14, valve pocket 15, boss 16, intake valve 17, bonded part 18, sealing cone.

Below in conjunction with embodiment this utility model content is described further.

First embodiment is the monoblock type dilator, it continues to use the structure of hydraulic pressure cervical dilator first half, be that body 3 is made blind pipe, its cecum outer surface is a hemispherical, at contiguous cecum place, body has a bending that conforms to operation portion position, through hole 2 inside and outside the bending section tube wall is shaped on the communication blind pipe also is with the soft cover 1 of tension force annular resilient, its two ends and body outer wall adhering and sealing outside the bending section body, hold blind pipe opening part, the elastic bag 4 that has fixing seal to link in addition at body.

During use, lay this dilator by requirements of operation, patient's extruding gasbag 4 then, and air under pressure exports through air bag, and blind pipe cecum through hole 2 makes soft cover 1 inner surface bear pressure, acts on and desires to execute the art position.Can need to change the pressure at air bag place by operation, until meeting the demands.After operation is finished, remove the pressure in the air bag 4, soft cover 2 and air bag 4 are all because of spring return, and dilator can take out.This routine structure is very simple, and operation also is easy to, and action is gentle.

Second embodiment continues to use the basic structure of first example, and its air bag 4 is made shutter folding, and both sides clamp 6 is associated with ring gear 8 and ratchet 7 respectively with middle part, impeller 9 lower ends.During use by the cooperating of ratchet and clamp 6 lower edges, but the mutual alignment between the fixation balloon both sides, i.e. compression degree; Ring gear 8 can limit the beat of 9 of clamp 6 and impeller.Free ratchet and can take out body with the aperture of recovering two impeller cooperating of edge clipping.

The 3rd embodiment also continues to use the basic structure of first example, its air bag 4 is that sealing cone cooperates 18 with body 3 mouth of pipe places, blind pipe 13 shapes are made at place, the gas outlet of air bag simultaneously, be shaped on its side pipe wall and link up the inside and outside pore 12 of blind pipe, through hole section blind pipe outer wall is with elastic sleeve 14, constitutes unidirectional check air outlet valve 11.First half at air bag 4 is shaped on pore 10, the 15 cyst walls thickening of peritreme portion.By the pore on patient's closed airbag 10, and extruding gasbag 4 can enter body 3 by pore 12 behind the air pressure of air under pressure in elastic force that overcomes valve pocket 14 and blind pipe during use, and the gas in the blind pipe then can't return again, and all the other operations are consistent with first example.When needs take out, the cone match 18 that detachable balloon 4 and body are 3, the pressed gas in the body 3 is overflowed thereupon, and body 3 just can take out.

The 4th embodiment is the basic structure with the 3rd example, and, elastic film intake valve 16 is housed, coverlay film air inlet inner face at the medial surface of the import and export 10 of air bag 4, its part edge portion 17 is adhesively fixed mutually with air bag 4 medial surface, forms the unidirectional non-return valve at air bag 4 air inlet places.During use, place dilator earlier, air inlet place intake valve 16 is just pressed to the air inlet inner face when extruding gasbag 4, make it sealing, pressed gas is entered in the body 3 by air bag outlet 11, and when removing air bag, air bag elastic force descends intraluminal pressure, the intake valve 16 at air inlet 10 places just breaks away from inlet end face when being lower than ambient pressure, and outside air is entered.After this make from multiple said process, can make the enough pressure of the interior generation of body blind pipe be used for expanding.It is identical with the 3rd example to take out operation.

Claims (8)

1, Pneumatic cervical dilator belongs to gynecologic operating instruments, it comprise make blind pipe, have near the blind pipe appropriateness crooked, be shaped on the body (3) of linking up the through hole (2) inside and outside the tube wall blind pipe at the bending section tube wall, also be with the soft cover of annular tension elasticity (1) that topped this place's through hole (2), two ends and body tube wall are sealed and matched at the body bending section, it is characterized in that: body (3) blind pipe opening with can produce pressed gas, and and elastic bag (4) sealing that communicates of blind pipe link.

2, dilator as claimed in claim 1 is characterized in that: air bag (4) is provided with the fixedly ratchet of compression position (7) and its clamp that matches.

3, dilator as claimed in claim 1 or 2 is characterized in that: the conical surface (18) is sealed and matched air bag (4) through sealing, unidirectional check air outlet valve (11) is equipped with in the air bag exit with body (3).

4, dilator as claimed in claim 1 or 2 is characterized in that: unidirectional check intake valve (16) is equipped with in the air bag porch.

5, dilator as claimed in claim 3 is characterized in that: unidirectional check intake valve (16) is equipped with in the air bag porch.

6, as dilator as described in the claim 1,2 or 5, it is characterized in that: air bag (4) is made hinging type (5).

7, as dilator as described in the claim 3, it is characterized in that: air bag is made hinging type (5).

8, as dilator as described in the claim 4, it is characterized in that: air bag is made hinging type (5).

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