CN215874884U

CN215874884U - Three-cavity cervix dilatation balloon catheter

Info

Publication number: CN215874884U
Application number: CN202121786572.9U
Authority: CN
Inventors: 杨福有; 曾杨帆; 徐洪斌
Original assignee: Guangdong Kangerle Medical Instrument Co ltd
Current assignee: Guangdong Kangerle Medical Instrument Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-02-22
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a three-cavity cervical dilatation balloon catheter which comprises a catheter, wherein the catheter is made of a silica gel material, and a first injection cavity, a second injection cavity and a third cavity are arranged in the catheter; the first injection cavity is communicated with the cervical dilatation balloon; the second injection cavity is communicated with the vaginal dilation balloon; the first injection pipe is communicated with the first injection cavity; the second injection pipe is communicated with the second injection cavity; and the positioning guide wire is arranged in the third cavity and is used for supporting the catheter. The third cavity is add to three chamber cervix dilatation sacculus pipe of this embodiment on the pipe, is provided with the location seal wire that is used for supporting the pipe in the third cavity, makes the pipe can be better maintain straight form, and inside the user need not the instrument can insert the pipe into the uterus, convenient operation, and can not damage sacculus and scratch uterus, the security is higher.

Description

Three-cavity cervix dilatation balloon catheter

Technical Field

The utility model relates to the field of medical instruments, in particular to a three-cavity cervical dilatation balloon catheter.

Background

Clinically, a parturient is not in labor due to self or fetal reasons or 42 weeks of gestation, and the cervical ripening needs to be promoted manually so as to induce labor, and the cervical dilatation balloon is used in the process. The cervix dilatation sacculus pipe is a silicon rubber double-sacculus device, is a novel non-medicine midwifery apparatus, and aiming at a patient with poor cervical maturity, through continuously and gradually pressurizing the inner opening and the outer opening of the cervix, the sacculus can stimulate the cervix to be gradually opened in the period of time, so that the patient is helped to induce labor.

Most of the existing cervical dilatation balloon catheters are double-cavity catheters made of silica gel, and the two cavities are respectively corresponding to the two balloons and used for injecting fluid. Because the silicone tube has low rigidity, the whole catheter is soft and difficult to maintain a straight shape, when a user puts the cervical dilatation balloon catheter into the uterus, the user can clamp the front balloon by using forceps or other tools and then put the cervical dilatation balloon catheter into the uterus, the operation is inconvenient, and the user can also damage the balloon or scratch the uterus by using the tools.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a three-cavity cervical dilatation balloon catheter, wherein a cavity channel is additionally arranged in the catheter, and a positioning guide wire is inserted into the cavity channel and used for supporting the catheter so that the catheter can maintain the shape.

The three-cavity cervical dilatation balloon catheter comprises a catheter, wherein the catheter is made of a silica gel material and comprises a proximal end and a distal end, a first injection cavity, a second injection cavity and a third cavity are arranged inside the catheter, and a sealing tip is arranged at the distal end of the catheter; the cervical dilatation balloon is arranged at the distal end of the catheter, and the first injection cavity is communicated with the cervical dilatation balloon; the vaginal dilation balloon is arranged at the far end of the catheter, the vaginal dilation balloon is positioned between the cervical dilation balloon and the sealing end head, and the second injection cavity is communicated with the vaginal dilation balloon; a first injection tube arranged at the proximal end of the catheter, wherein the first injection tube is communicated with the first injection cavity; a second injection tube arranged at the proximal end of the catheter, wherein the second injection tube is communicated with the second injection cavity; a positioning guidewire disposed within the third lumen, the positioning guidewire being for supporting the catheter.

The three-cavity cervical dilatation balloon catheter according to the embodiment of the first aspect of the utility model has at least the following beneficial effects: the third cavity is add to three chamber cervix dilatation sacculus pipe of this embodiment on the pipe, is provided with the location seal wire that is used for supporting the pipe in the third cavity, improves the rigidity of pipe through the support of location seal wire, makes the pipe can be better maintain straight form, and the user need not the instrument can insert the pipe inside the uterus, convenient operation, and can not damage sacculus and scratch uterus, and the security is higher.

According to the three-cavity cervical dilatation balloon catheter disclosed by the utility model, the positioning guide wire is made of metal or rigid plastic, has certain rigidity and can better support the catheter.

According to the three-cavity cervical dilatation balloon catheter in the first aspect of the utility model, the positioning guide wire is made of stainless steel materials.

The three-cavity cervical dilatation balloon catheter according to the first aspect of the utility model, the third cavity is provided with an opening at the proximal end of the catheter, and the positioning guide wire is inserted into the interior of the third cavity from the opening. The third cavity is provided with an opening, a positioning guide wire is inserted when needed, and the positioning guide wire can be pulled out from the opening after use, so that the operation is more flexible.

According to the three-cavity cervical dilatation balloon catheter of the first aspect of the utility model, the length of the positioning guide wire is greater than that of the third cavity, so that the positioning guide wire is partially exposed out of the third cavity and can be held and operated by a user.

According to the three-cavity cervical dilatation balloon catheter of the first aspect of the utility model, the end, exposed outside the catheter, of the positioning guide wire is provided with the pull ring, so that a user can hold and apply force more conveniently.

According to the three-cavity cervical dilatation balloon catheter of the first aspect of the utility model, the first injection tube and the second injection tube are respectively provided with a one-way valve, and the one-way valves can ensure that injected fluid cannot flow backwards.

According to the three-cavity cervical dilatation balloon catheter disclosed by the first aspect of the utility model, the outer side of the sealing end is smooth and semicircular without a tip, so that the intubation process is more smooth and smoother, and the body is prevented from being scratched.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a three-lumen cervical dilatation balloon catheter of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

fig. 3 is an enlarged schematic view at B in fig. 1.

The reference numbers illustrate:

catheter 100, first injection cavity 110, second injection cavity 120, third cavity 130, sealing tip 140, cervical dilatation balloon 200, vaginal dilatation balloon 300, first injection tube 400, one-way valve 410, second injection tube 500, positioning guide wire 600, and pull ring 610.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, several means are one or more, and more means are two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 3, according to a preferred embodiment of the present invention, a three-cavity cervical dilatation balloon catheter comprises a catheter 100, wherein the catheter 100 is made of medical-grade silica gel material, and is soft, non-irritating, non-toxic, odorless, safe and reliable. The catheter 100 includes a proximal end and a distal end, wherein the proximal and distal ends are referenced to a user operating the balloon catheter, the proximal end is adjacent to the user for holding and performing the injection procedure, and the distal end is adapted to be placed inside the uterus during use. At the distal end of the catheter 100, a cervical dilation balloon 200 and a vaginal dilation balloon 300 are provided. Wherein the vaginal dilation balloon 300 is located closer to the end of the catheter 100, and after placement inside the uterus, the vaginal dilation balloon 300 is located further inside the uterus for dilating the vagina, and the cervical dilation balloon 200 is located further outside for dilating and supporting the cervix. The tail end of the catheter 100 is provided with a sealing end 140, the outer side of the sealing end 140 is smooth and semicircular, and a tip is absent, so that the intubation process is smooth and smooth, and the body is prevented from being scratched. At the proximal end of the catheter 100, a first syringe 400 and a second syringe 500 for injecting fluid are provided, and the first syringe 400 and the second syringe 500 are provided with check valves 410, respectively.

As shown in fig. 2 and 3, the catheter 100 is internally provided with a first injection cavity 110, a second injection cavity 120 and a third cavity 130. First injection tube 400 communicates with cervical dilation balloon 200 through first injection lumen 110 and second injection tube 500 communicates with vaginal dilation balloon 300 through second injection lumen 120. First injection lumen 110 and second injection lumen 120 are used to deliver fluid to inflate the balloon. The third lumen 130 is used for placement of the positioning guidewire 600. The positioning guide wire 600 is made of a material having a certain rigidity, such as metal or rigid plastic. Preferably, in this embodiment, the positioning guide wire 600 is made of stainless steel material, has good rigidity and toughness, and does not rust, thereby achieving the medical grade. The third cavity 130 is provided with an opening at the proximal end of the catheter 100, the positioning guide wire 600 is inserted into the third cavity 130 from the opening, and the length of the positioning guide wire 600 is greater than that of the third cavity 130, so that part of the positioning guide wire 600 is exposed out of the third cavity 130, and a pull ring 610 is provided at the end of the positioning guide wire 600 exposed out of the catheter 100, which is convenient for a user to hold and apply force, as shown in fig. 1.

The three-cavity cervical dilatation balloon catheter of this embodiment adds the third cavity 130 on pipe 100, is provided with the opening on the third cavity 130, inserts location seal wire 600 when needs, is used for supporting pipe 100, improves the rigidity of pipe 100 through the support of location seal wire 600, makes pipe 100 can be better maintain straight form, inside the user need not the instrument and can insert pipe 100 into the uterus, and convenient operation, and can not damage the sacculus and scratch uterus, the security is higher. After the catheter 100 is inserted into the uterus, the positioning guide wire 600 can be pulled out from the opening, so that the catheter 100 is softened, the subsequent operation is convenient, and the pregnant woman is not injured.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A three-lumen cervical dilation balloon catheter, comprising:

the catheter is made of a silica gel material and comprises a near end and a far end, a first injection cavity, a second injection cavity and a third cavity are arranged in the catheter, and a sealing end is arranged at the far end of the catheter;

the cervical dilatation balloon is arranged at the distal end of the catheter, and the first injection cavity is communicated with the cervical dilatation balloon;

the vaginal dilation balloon is arranged at the far end of the catheter, the vaginal dilation balloon is positioned between the cervical dilation balloon and the sealing end head, and the second injection cavity is communicated with the vaginal dilation balloon;

a first injection tube arranged at the proximal end of the catheter, wherein the first injection tube is communicated with the first injection cavity;

a second injection tube arranged at the proximal end of the catheter, wherein the second injection tube is communicated with the second injection cavity;

a positioning guidewire disposed within the third lumen, the positioning guidewire being for supporting the catheter.

2. The three-lumen cervical dilation balloon catheter according to claim 1, wherein the positioning guide wire is made of metal or rigid plastic.

3. The three-lumen cervical dilation balloon catheter according to claim 2, wherein the positioning guide wire is made of stainless steel material.

4. The triple-lumen cervical dilation balloon catheter according to any one of claims 1 to 3, wherein the third lumen is provided with an opening at a proximal end of the catheter, the positioning guidewire being inserted into the interior of the third lumen from the opening.

5. The triple lumen cervical dilation balloon catheter according to claim 4, wherein the positioning guidewire has a length greater than the length of the third lumen.

6. The three-lumen cervical dilation balloon catheter according to claim 5, wherein an end of the positioning guide wire exposed outside the catheter is provided with a pull ring.

7. The three-lumen cervical dilation balloon catheter according to claim 1, wherein the first and second injection tubes are each provided with a one-way valve thereon.

8. The three-lumen cervical dilation balloon catheter according to claim 1, wherein the outside of the sealing tip is smooth semi-circular.