CN211156148U

CN211156148U - Anti-cracking and anti-dropping self-lubricating cervix dilatation balloon

Info

Publication number: CN211156148U
Application number: CN201921614527.8U
Authority: CN
Inventors: 王雪莱; 孙永红
Original assignee: SCW MEDICATH Ltd
Current assignee: SCW MEDICATH Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-08-04
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a prevent breaking anti-drop self-lubricating cervix dilatation sacculus belongs to medical instrument technical field, including two-chamber pipe, two-chamber pipe's front end is connected with pointed end, two-chamber pipe's rear end is connected with Y type connector, the part that two-chamber pipe is close to pointed end is equipped with expandable first sacculus and second sacculus, its characterized in that in proper order in cluster: hydrophilic base coatings are arranged outside the tip part, the double-cavity catheter between the Y-shaped connector and the second balloon, the front half part of the first balloon and the rear half part of the second balloon. The utility model discloses do local hydrophilic base coating on most advanced, silica gel sacculus and two-chamber pipe surface, reduce the frictional force on product surface to do not do the coating between two silica gel sacculus, keep the high coefficient of friction characteristic of silica gel.

Description

Anti-cracking and anti-dropping self-lubricating cervix dilatation balloon

Technical Field

The utility model relates to the technical field of medical equipment, in particular to prevent breaking anti-drop self-lubricating cervix dilatation sacculus.

Background

Induction of labor refers to an operation in which a mother or fetus requires artificial induction of uterine contractions to terminate pregnancy. And (4) inducing labor in the middle and late stages of the gestational week during labor induction. The main purpose of induction is to protect the mother and fetus from further damage. When the pregnancy is induced in the middle and late stages, the cervix is immature, and the abortion medicine is only used, so that the cervix is easy to tear or the labor induction is failed. It is more conventional practice to place a balloon at the cervix that promotes cervical ripening, referred to as a cervical dilatation balloon. Two balloons are arranged at one end of a catheter main body of the cervix dilatation balloon, a liquid inlet branch pipe is arranged at the other end of the catheter main body, and the balloons are made of expandable elastic medical materials. During the use, two sacculums are placed respectively in the inside and outside of cervical orifice, inject into two sacculums through feed liquor branch pipe with normal saline, disinfect water etc. and make two sacculums inflation, two sacculums lean on respectively inside and outside the cervix one-front-back, make the cervix pressurized and expand, can be natural, safe, progressive expansion cervix to improve the induced labor success rate.

At present, the cervix dilatation balloon is a silica gel product, and the silica gel surface has large friction force, so that the cervix dilatation balloon is very uncomfortable or painful to place in a body. If the body is placed in order to prevent pain and discomfort, the application of the lubricant may result in placement that is too slippery and results in unsuccessful exfoliation. In addition, the balloon is easy to rupture during use due to the overlarge uterine contraction pressure. Or improper operation by the physician, uncertainty about the liquid volume filled, and excessive filling results in excessive pressure, which can lead to balloon rupture.

Therefore, in order to overcome the defects in the prior art, a new cervical dilatation balloon catheter needs to be designed to meet the use requirements.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prevent breaking anti-drop self-lubricating cervix dilatation sacculus solves the problem that current cervix dilatation sacculus is very uncomfortable or painful and is easily dropped after placing when placing internally.

In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides a prevent breaking anti-drop self-lubricating cervix dilatation sacculus, includes two-chamber pipe, the front end of two-chamber pipe is connected with pointed end, the rear end of two-chamber pipe is connected with Y type connector, the part that two-chamber pipe is close to pointed end is equipped with expandable first sacculus and second sacculus in proper order in cluster, pointed end Y type connector with two-chamber pipe between the second sacculus outside first half of first sacculus with the second sacculus half of the back all is equipped with hydrophilic base coating outward.

Wherein, preferably, the Y-shaped connector comprises a first branch pipe and a second branch pipe.

Preferably, a first channel and a second channel are arranged inside the double-lumen catheter, the first channel is communicated with the first balloon and the first branch pipe respectively, and the second channel is communicated with the second balloon and the second branch pipe respectively.

Preferably, the first branch pipe and the second branch pipe are respectively provided with an filling check valve and a locking ring according to the flowing direction of the injected physiological saline.

Preferably, two anti-rupture pressure relief valves are arranged between the locking ring and the end part of the double-cavity catheter and are respectively positioned on the first branch pipe and the second branch pipe.

The technical scheme provided by the utility model, compared with prior art, following beneficial effect has:

the utility model is provided with a local hydrophilic base coating on the tip, the silica gel sacculus and the surface of the double-cavity catheter, thereby reducing the friction force on the surface of the product, and no coating is arranged between the two silica gel sacculus, thereby keeping the high friction coefficient characteristic of silica gel; the problem that the existing cervical dilatation balloon is very uncomfortable or painful when placed in a body is solved, and the problem that the existing cervical dilatation balloon is easy to fall off after being coated with a lubricant is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other embodiments can be obtained according to the drawings without creative efforts;

fig. 1 is a schematic structural view of the neutron cervix dilatation balloon of the present invention.

In the figure: 1. the medical catheter comprises a double-cavity catheter, 1-1 parts of a first channel, 1-2 parts of a second channel, 2 parts of a tip part, 3 parts of a Y-shaped connector, 3-1 parts of a first branch pipe, 3-2 parts of a second branch pipe, 4 parts of a first balloon, 5 parts of a second balloon, 6 parts of an inflation check valve, 7 parts of a locking ring and 8 parts of an anti-rupture pressure release valve

Detailed Description

The technical solution of the present invention will be described clearly and completely below with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the present embodiment provides a rupture-preventing and drop-preventing self-lubricating cervical dilatation balloon, which includes a double-lumen catheter 1, wherein the front end of the double-lumen catheter 1 is connected with a tip portion 2, the rear end of the double-lumen catheter 1 is connected with a Y-shaped connector 3, the portion of the double-lumen catheter 1 close to the tip portion 2 is sequentially provided with a first inflatable balloon 4 and a second inflatable balloon 5 in series, and hydrophilic base coatings (not shown in the figure) are respectively arranged outside the double-lumen catheter 1 between the tip portion 2, the Y-shaped connector 3 and the second balloon 5, and outside the front half portion of the first balloon 4 and the rear half portion of the second balloon. The utility model discloses local hydrophilic base coating is done on most advanced, silica gel sacculus and two-chamber pipe 1 surface, reduces the frictional force on product surface. And no coating is made between the two silica gel balloons, so that the high friction coefficient characteristic of silica gel is maintained. The hydrophilic base coating has excellent blood compatibility and low friction coefficient, improves the lubricity of the cervical dilatation balloon in the embodiment, is favorable for being inserted into or pulled out of a human body, reduces the friction between the cervical dilatation balloon and a tissue interface, and solves the problem that the existing cervical dilatation balloon is very uncomfortable or painful when placed in the human body. The hydrophilic substrate may be a surface treatment commonly used for medical devices such as guidewires, catheters, balloon catheters, diaphragms, and the like. Such as the hydrophilic coating of Surskin manufactured by Biotech, Inc. of Shanghai Lu.

Wherein the Y-connector 3 comprises a first branch 3-1 and a second branch 3-2. A first channel 1-1 and a second channel 1-2 are arranged in the double-cavity catheter 1, the first channel 1-1 is respectively communicated with a first balloon 4 and a first branch pipe 3-1, and the second channel 1-2 is respectively communicated with a second balloon 5 and a second branch pipe 3-2.

Wherein, according to the flowing direction of the injected physiological saline, the first branch pipe 3-1 and the second branch pipe 3-2 are respectively provided with an filling check valve 6 and a locking ring 7. The filling check valve 6 is made of styrene-butadiene-acrylonitrile copolymer (ABS), the locking ring 7 is made of Polyethylene (PE), and special materials are adopted, so that the use comfort of the pregnant woman is more perfect, and the vagina of the pregnant woman is prevented from being scratched.

And two anti-rupture pressure relief valves 8 are arranged between the locking ring 7 and the end part of the double-cavity catheter 1 and are respectively positioned on the first branch pipe 3-1 and the second branch pipe 3-2. The installation prevents that rupture relief valve 8, prevents that the product from leading to the sacculus to break because of the too big or because of doctor's misoperation of uterine contraction pressure, can reduce doctor's working strength with this function.

When the cervical dilatation balloon catheter works, a vagina speculum is used for exposing the cervix, the tip end portion 2 of the cervix dilatation balloon is inserted into the cervix, the first balloon 4 and the second balloon 5 are ensured to pass through the inner opening of the cervix, 40ml of normal saline (0.9%) is injected into the first balloon 4, after the first balloon 4 is filled, the catheter is pulled outwards until the first balloon 4 is close to the inner opening of the uterus, at the moment, the second balloon 5 is at the outer opening of the uterus, 20m L of normal saline (0.9%) is filled into the second balloon 5, then the second balloon 5 is filled with the normal saline (0.9%), a maximum 80m L of normal saline is injected into a single balloon, after the completion, the proximal end of the catheter is attached to the inner side of a thigh of a parturient to be fixed, for the parturient with the cervix dilatation balloon catheter, the parturient can be taken out after 12 hours without self-parturition, and if uterine contraction or fetal membranes are.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent breaking anti-drop self-lubricating cervix dilatation sacculus, includes two-chamber pipe, the front end of two-chamber pipe is connected with pointed end, the rear end of two-chamber pipe is connected with Y type connector, the part that two-chamber pipe is close to pointed end is equipped with expandable first sacculus and second sacculus, its characterized in that in proper order in cluster: hydrophilic base coatings are arranged outside the tip part, the double-cavity catheter between the Y-shaped connector and the second balloon, the front half part of the first balloon and the rear half part of the second balloon.

2. The anti-cracking anti-drop self-lubricating cervical dilatation balloon of claim 1, wherein: the Y-connector includes a first leg and a second leg.

3. The anti-cracking anti-drop self-lubricating cervical dilatation balloon according to claim 2, wherein: a first channel and a second channel are arranged in the double-cavity catheter, the first channel is communicated with the first balloon and the first branch pipe respectively, and the second channel is communicated with the second balloon and the second branch pipe respectively.

4. The anti-cracking anti-drop self-lubricating cervical dilatation balloon according to claim 2, wherein: according to the flowing direction of the injected physiological saline, the first branch pipe and the second branch pipe are respectively provided with an filling check valve and a locking ring.

5. The anti-cracking anti-drop self-lubricating cervical dilatation balloon according to claim 4, wherein: and two anti-rupture pressure relief valves are arranged between the locking ring and the end part of the double-cavity catheter and are respectively positioned on the first branch pipe and the second branch pipe.