CN201602855U

CN201602855U - Double-lumen decompression aspiration tube for abortion

Info

Publication number: CN201602855U
Application number: CN2009201936579U
Authority: CN
Inventors: 李宜; 顾会霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-24
Filing date: 2009-08-24
Publication date: 2010-10-13
Anticipated expiration: 2019-08-24

Abstract

The utility model belongs to the technical field of medical equipment, which is a double-lumen decompression aspiration tube for abortion. The existing aspiration tube for abortion is only a negative pressure aspiration channel, or is easy to cause iatrogenic infections. The utility model provides a double-lumen aspiration tube for abortion, having an aspiration channel and a decompression channel, the decompression channel is arranged on the inner wall of the aspiration channel, and the purpose of decompression is realized by making outside atmospheric air come into the uterine cavity. An air-filtering film is covered on the air inlet of the decompression channel and the film can filter the air coming into the uterine cavity, thus the utility model is a new aspiration tube for abortion, which can adjust pressure, decompress, prevent blocking and prevent iatrogenic infections.

Description

A kind of two-chamber decompression type miscarriage pipet

Technical field

This utility model relates to technical field of medical instruments, is specifically related to a kind of two-chamber decompression type miscarriage pipet.

Technical background

The employed rustless steel suction catheter of existing artificial abortion operation has only a negative pressure channel, Shi Shushi, by negative pressure suction force the negative pressure channel sucking-off uterine cavity of embryonal tissue, to reach the purpose of artificial abortion through the rustless steel suction catheter.The mode of this unidirectional lasting attraction causes easily to inhale to endometrium no embryo attachment, that expand position and breaks, cause unexpected damage, the more important thing is, owing to attract the seraglio intracavity to be in negative pressure state, the tissue injury that has aggravated the embryo attachment position is hemorrhage, and posthemorrhagic intrauterine cavity is in barotropic state, very easily causes blood to enter the abdominal cavity by fallopian tube, cause artificial abortion syndromes such as palace blood adverse current, have a strong impact on patient's body and child-bearing health.

For this reason, Chinese utility model patent two-chamber negative pressure controllable type artificial abortion's suction catheter (patent No.: ZL 95228318.2) has proposed to use the technical scheme of double lumen tube and controllable voltage regulating to solve the problem that tube chamber stops up and tissue blocks; And Chinese utility model patent Induced abortion pressure reduction type suction pipe (patent No.: ZL 02274154.2) has proposed the technical scheme of decompression, risk with reply palace blood adverse current, such scheme has its advance, but organize wound surface for one, though provide the facility of executing the patient maybe can reduce the generation of artificial abortion syndrome, but the phenomenon that the air admission uterine cavity of filtered is all arranged, this objectively instead more the risk of nosocomial infection, cause unexpected infection.

The utility model content

But the purpose of this utility model provides a kind of adjust blood pressure, prevents to stop up, reduce internal pressure of uterine cavity power, and further can prevent the two-chamber decompression type miscarriage pipet of nosocomial infection on this basis.

The technical solution of the utility model is achieved in that a kind of two-chamber decompression type miscarriage pipet, include base 1, suction catheter 2 and attract mouth 23, it is characterized in that suction catheter 2 is the two-chamber road siphunculus that attract passage 21 and relief passage 22 to constitute, attract passage 21 and the inner chamber 11 that attracts mouth 23 and base 1 to connect, air inlet 13 on relief passage 22 and pressure-reduction outlet 24 and the base 1 connects, and covers and be fixed with an air filtration film 12 on the air inlet 13.Wherein, relief passage 22 is built in the inwall that attracts passage 21, and its caliber is less than the internal diameter that attracts passage 21.Air inlet 13 is positioned at the front end of base 1, and the front end of the insertion base 1 of relief passage 22 1 ends is communicated with air inlet 13 in the suction catheter 2, and the outside of air inlet 13 is the cambered surface structure of an indent.

When executing art, have two kinds of situations to result in blockage easily or block, one is when meeting bulk embryonal tissue, owing to organize not broken, monoblock enters and attracts mouthful 23 obstructions, can adopt pulsed closure/unlatching air inlet 13, makes air enter uterine cavity by relief passage 22 under vacuum suction, thereby reduce the captivation that attracts mouthful 23 pairs of tissues, pulsed attracts and loosens, and can impel embryonal tissue's fragmentation, distortion, makes the sucking-off smoothly of bigger embryonal tissue.Its two, attract for several times after, be in negative pressure state in the uterine cavity of uterus, form counter-attraction, can open air inlet 13 this moment, makes air enter uterine cavity by relief passage 22, balance uterine cavity internal negative pressure is avoided being organized in and is attracted to move around in the passage 21 and can not inhale blocking of causing.The setting of air inlet 13 can realize preventing and handle above-mentioned obstruction or block.

Wherein, owing to be communicated with the pressure-reduction outlet 24 through uterine cavity inside of relief passage 22, in the art or postoperative, all can discharge the air admission uterine cavity through passage thus, negative pressure in the balance uterine cavity reduces the hemorrhage complication that causes; In the art, control air inlet 13 open-interval length are the size of scalable suction pressure.

In the technical solution of the utility model, air inlet 13 is coated with air filtration film 12, and the entering it and filter of air avoided antibacterial and virus in the open direct ingress of air of wound, the prevention nosocomial infection.

But this utility model can reach and prevent to stop up in utero pressure of adjust blood pressure, balance thus, reduces the artificial abortion syndrome, and prevents the multiple beneficial effect of nosocomial infection, and simple in structure, the function practicality, and feasible process has typical realistic meaning.

Description of drawings

Fig. 1 is the structure chart according to the two-chamber decompression type miscarriage pipet that the utility model proposes.

Fig. 2 is that suction catheter A-A described in the utility model is to schematic cross-section.

Fig. 3 is base described in the utility model, filter membrane and air inlet generalized section.

The specific embodiment

Below in conjunction with description of drawings foundation performance of the present utility model.

As shown in Figure 1, a kind of two-chamber decompression type miscarriage pipet, include base 1, suction catheter 2 and attract mouth 23, it is characterized in that suction catheter 2 is the two-chamber road siphunculus that attract passage 21 and relief passage 22 to constitute, attract passage 21 and the inner chamber 11 that attracts mouth 23 and base 1 to connect, air inlet 13 on relief passage 22 and pressure-reduction outlet 24 and the base 1 connects, cover and be fixed with an air filtration film 12 on the air inlet 13, wherein, relief passage (22) is built in the inwall that attracts passage (21), and its caliber is less than the internal diameter that attracts passage (21).

Above-mentioned air inlet 13 is positioned at the front end of base 1, the front end of the insertion base 1 of relief passage 22 1 ends is communicated with air inlet 13 in the suction catheter 2, the outside of air inlet 13 is the cambered surface structure of an indent, and air inlet (13) is gone up the air filtration film (12) that covers and can be seen through air and can stop liquid to spill.

The two-chamber decompression type miscarriage pipet that the utility model proposes is work like this, and as shown in Figure 1, base 1 port of export connects negative pressure source and contains utensil during use, executes the patient and grips base 1, and forefinger presses air inlet 13 and undergos surgery.Because suction catheter 2 is two-chamber road siphunculus, attraction passage 21 wherein is for embryonal tissue's sucking-off, and another relief passage 22 is in communication with the outside for atmospheric air and enters uterine cavity.In the operation process; when in the uterine cavity owing to continuously attracting to make uterine cavity be in negative pressure state; occurring back suction easily draws; embryonal tissue is moved around and can't sucking-off in attracting passage 21; by decontroling forefinger pushing to air inlet 13; air is entered from air inlet 13, after being filtered by air filtration film 12, enter relief passage 22; go out from pressure-reduction outlet 24; through uterine cavity inside makes negative pressure reduction in the uterine cavity, impels embryonal tissue's sucking-off; traditional instruments is needing to extract artificial abortion's pipe in such cases; in the way of inserting uterine cavity, this utility model beneficial effect compared with the prior art is to have avoided artificial abortion's pipe to pass in and out uterine cavity repeatedly, alleviates patient's misery greatly behind the equalizing pressure; shorten operating time; reduce the intrauterine infection chance, cervical mucosa is protected to greatest extent, prevent that cervical adhesion from taking place.

By press degree and the time length of forefinger to air inlet 13, also can adjust the size of internal pressure of uterine cavity power, avoid negative pressure excessive, cause accidental injury to uterine cavity.

When meeting with bulk embryonal tissue; be that attraction passage 21 stops up in regular meeting; cause attraction not smooth; even block; air inlet 13 is implemented the closure/breakdown action of pulsed by the forefinger of executing the patient; then but pulsed ground changes internal pressure of uterine cavity power; can produce easily and attract mouthful 23 pairs of pulsed actions that embryonal tissue realizes sucking/loosening repeatedly; with extruding, broken embryonal tissue; its distortion is entered attract passage 21 and be sucked out; this mode can realize preventing to stop up and attract unclean greater than the sucking-off of organizing that attracts passage 21 caliber several times effectively.

Because cervix uteri and orifice of uterus are to the package action of suction catheter 2, make in the art or the uterus uterine cavity of postoperative in be in negative pressure state, thereby aggravated the hemorrhage of wound, make the long-time pain of patient, and hemorrhage making is in malleation gradually in the uterine cavity, then blood may enter the abdominal cavity by fallopian tube, cause the artificial abortion syndrome, have a strong impact on patient health, thus this utility model in art or postoperative can discharge forefinger fully to the pushing of air inlet 13, make in the through uterine cavity of air, reduce in utero negative pressure suction force, make the hemorrhage minimizing of wound, be beneficial to uterine contraction, promote the closure of blood sinus.

Simultaneously, because air inlet 13 outsides are coated with air filtration film 12, the air inlet device of the similar transfusion device of effect of this filter membrane, operation whole process enters intrauterine air, all be filtered, no antibacterial or virus enter uterine cavity and directly contact wound surface, reduce the risk of nosocomial infection.

Although this utility model is to describe with reference to specific embodiment, this description and not meaning that is construed as limiting this utility model.With reference to description of the present utility model, other of the disclosed embodiments change, and all can expect for those skilled in the art, and this variation should belong in the affiliated claim institute restricted portion.

Claims

1. two-chamber decompression type miscarriage pipet, include base (1), suction catheter (2) and attract mouthful (23), it is characterized in that suction catheter (2) is the two-chamber road siphunculus that attracts passage (21) and relief passage (22) to constitute, attract passage (21) and the inner chamber (11) that attracts mouthful (23) and base (1) to connect, air inlet (13) on relief passage (22) and pressure-reduction outlet (24) and the base (1) connects, and covers and be fixed with an air filtration film (12) on the air inlet (13).

2. two-chamber decompression type miscarriage pipet according to claim 1 is characterized in that relief passage (22) is built in the inwall that attracts passage (21), and its caliber is less than the internal diameter that attracts passage (21).

3. two-chamber decompression type miscarriage pipet according to claim 1, it is characterized in that air inlet (13) is positioned at the front end of base (1), the front end of the insertion base (1) of relief passage (22) one ends is communicated with air inlet (13) in the suction catheter (2), and the outside of air inlet (13) is the cambered surface structure of an indent.