CN201046293Y

CN201046293Y - Multifunctional two-chamber air bag cervical dilator

Info

Publication number: CN201046293Y
Application number: CNU200720022333XU
Authority: CN
Inventors: 徐彬; 彭涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-18
Filing date: 2007-05-18
Publication date: 2008-04-16
Anticipated expiration: 2017-05-18

Abstract

The utility model relates to a multifunctional dual-chamber gasbag cervical dilator for clinical obstetrics and gynecology, comprising a dual-chamber tube body, a cone type self-contraction one-way valve and a plastic mandrel, which is characterized in that the structure is a dual-chamber tube body with a gas injecting cavity and a drug injecting cavity; a gasbag is arranged at the front end of the tube body; a drug outlet hole is arranged at the top end; a gas injecting port and a drug injecting port are arranged at the end of the tube body; the gas injecting port is provided with a cone type self-contraction one-way valve; the gas injecting port is communicated with the gasbag by the gas injecting cavity and an annular air outlet; the drug injecting port is communicated with the drug outlet hole by the drug injecting cavity; the inner of the drug injecting cavity is provided with a matching plastic mandrel with an arc shaped front end. The utility model has the advantages that anesthesia is operated on the endocervix and the uterine cavity surface simultaneously when the cervix is expanded, so that the patient is comfortable and without pain when the cervix is expanded. According to different needs, the utility model also can be used for drug injecting and washing of the uterine cavity or drug injecting outside the amniotic cavity for induced labor when terminating 11 to 14 W pregnancies.

Description

Multi-functional double-lumen air sac cervical dilator

Technical field:

This utility model relates to the disposable medical articles for use, is a kind of multi-functional double-lumen air sac cervical dilator of clinical department of obstetrics and gynecology application.

Technical background:

At present, department of obstetrics and gynecology are used for the cervical dilatation method clinically and divide two classes, and a class is medicine cervix dilating such as mifepristone, misoprostol etc., and certain side effect is arranged, and the hepatic and kidney function obstacle person should not use; Another kind of is the mechanicalness cervical dilatation, and commonly used is stainless steel metal dilator bar or urinary catheter.Dilator bar is the metal cervical dilator that is increased progressively with 0.5mm by several diameters, inserts by force during use and struts cervix uteri, needs repeatable operation, and process is loaded down with trivial details, damages the cervical canal mucosal tissue in addition easily; The urinary catheter cervix dilating causes discomfort easily because urinary catheter is oversize, and the urinary catheter material is soft, when, adhesion narrow as neck tube, deformity etc. are unusual, causes easily that to put pipe difficult, even can't insert cervix uteri.Machinery during cervical dilatation because of dilator bar or urinary catheter to the cervical mucosa stimulation, cause patient to be difficult to tolerance, show as dizziness, uncomfortable in chest, pale complexion, be in a cold sweat, decreased heart rate appears in severe patient, symptoms such as blood pressure drops.

Summary of the invention:

The purpose of this utility model is a kind of disposable multi-functional double-lumen air sac cervical dilator with surface anesthetic effect that can insert easily of design, implementing cervical dilatation simultaneously, can carry out topical anesthesia to cervical mucosa, makes the more comfortable tolerance cervical dilatation of patient.

This utility model for achieving the above object, by the following technical solutions: multi-functional double-lumen air sac cervical dilator, the two-chamber pipe shaft that comprises a tool gas injection chamber and medicine-injecting cavity, the pipe shaft front end has air bag, there is medicine outlet hole on the top, the pipe shaft tail end has gas injection port and medicine-pouring port, gas injection port has a tapered check valve that contracts certainly, gas injection port is communicated with air bag by gas injection chamber and annular air outlet, medicine-pouring port is communicated with medicine outlet hole by medicine-injecting cavity, being provided with the front end that is mated in the medicine-injecting cavity of two-chamber pipe shaft is arcual plastics mandrel, on the two-chamber pipe shaft outer surface graduation mark is arranged.

Because adopt technique scheme, this utility model advantage is:

1) insert easily, it is arcual plastics mandrel that two-chamber pipe shaft medicine-injecting cavity endogenous cause of ill has front end, has increased tenacity, makes it to be easy to insert.

2) easy to operate, once put into, avoided the expansion metal rod repeatedly to pass in and out cervix uteri, cause the cervical canal mucosa injury.

3) injection local anaesthetics and cervix dilating carry out simultaneously, make the more comfortable tolerance cervical dilatation of patient, are unlikely untoward reaction such as appearance is uncomfortable in chest, pale complexion.

4), also can be used for drug-injected into uterine cavity flushing, or amniotic cavity injects drug induction outward when stopping 11-14 week gestation according to different needs.

Description of drawings:

Fig. 1 is structural representation of the present utility model, is medicine-injecting cavity 5 at the middle part of two-chamber pipe shaft 1, and right part is gas injection chamber 6.In medicine-injecting cavity 5, being provided with the front end that is mated is arcual plastics mandrel 2; The medicine-pouring port 7 of medicine-injecting cavity afterbody is communicated with medicine outlet hole 8 by medicine-injecting cavity 5.The gas injection port 9 of gas injection chamber 6 afterbodys is provided with the tapered check valve 3 that contracts certainly, and gas injection port 9 is communicated with air bag 4 by gas injection chamber 6, annular air outlet 10, and there is scale 11 on pipe shaft 1 surface.

Fig. 2 is the A-A profile of Fig. 1, signal annular air outlet and airbag structure.

Fig. 3 be the B of Fig. 1 to view, the Long Circle medicine outlet hole structure of signal medicine-injecting cavity front end.

Fig. 4 is the external form signal of plastics mandrel 2.

Fig. 5 is tapered structural representation from the check valve 3 that contracts.

The specific embodiment:

During clinical use, this utility model front end is inserted 6-7cm by cervix uteri along the palace wall, extract plastics mandrel 2 out, inject the local anaesthesia medicinal liquid from medicine-pouring port 7 usefulness syringes, the local anaesthesia medicinal liquid just is injected on the uterine cavity mucosa by medicine-injecting cavity 5 and medicine outlet hole 8, the limit is slowly to the pipe shaft 1.5cm-2cm that pulls back out then, two-chamber pipe shaft 1 is entered in the cervical canal, limit spray local anaesthesia medicinal liquid, after making the cervical mucosa topical anesthesia, inject 5-20ml air or sterile liquid from gas injection port 9 as required, the air of injection or sterile liquid can evenly expand air bag in the cervical canal 4 by gas injection chamber 6 annular air outlet 10, the expansion rear gasbag becomes the long 40-50mm of diameter 14-16mm slightly crooked cylindric, because of gas injection port 9 has one taperedly from the check valve 3 that contracts, can prevent that gas (liquid) from refluxing, keep bladder shape and reach the purpose that makes cervical dilatation.After finishing using, air in the air bag (liquid) is extracted out, extracted dilator and get final product, the degree of depth that pipe shaft enters can be shown by its lip-deep scale 11.

Claims

1. multi-functional double-lumen air sac cervical dilator, form by dilator pipe shaft, tapered check valve and the plastics mandrel of contracting certainly, it is characterized in that: two-chamber pipe shaft with gas injection chamber and medicine-injecting cavity, the pipe shaft front end has air bag, there is medicine outlet hole on the top, the pipe shaft tail end has gas injection port and medicine-pouring port, and gas injection port is communicated with air bag by gas injection chamber, gas outlet, and medicine-pouring port is communicated with medicine outlet hole by medicine-injecting cavity.

2. multi-functional double-lumen air sac cervical dilator according to claim 1 is characterized in that, on the two-chamber pipe shaft outer surface graduation mark is arranged.

3. multi-functional double-lumen air sac cervical dilator according to claim 1 is characterized in that being provided with the front end that is mated in the medicine-injecting cavity of two-chamber pipe shaft is arcual plastics mandrel.

4. multi-functional double-lumen air sac cervical dilator according to claim 1 is characterized in that gas injection port has a tapered check valve that contracts certainly.

5. multi-functional double-lumen air sac cervical dilator according to claim 1 is characterized in that the gas outlet is an annular air outlet.