CN215458500U

CN215458500U - Liquid-absorbing expandable sponge and sponge rod for cervical dilatation of compressible PVA sponge

Info

Publication number: CN215458500U
Application number: CN202120910658.1U
Authority: CN
Inventors: 谭明宁
Original assignee: Jiangsu Shensi Biotechnology Co ltd
Current assignee: Jiangsu Shensi Biotechnology Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-01-11
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a compressive PVA sponge liquid-absorbing expandable sponge and a sponge stick for cervical dilatation, which relate to the field of medical sponges and comprise a sponge body, wherein the sponge body consists of a handle area, a punching area and an expansion area, the punching area is positioned in the middle of the sponge body and is provided with a plurality of through holes, the expandable sponge is compressed into the handle and a stick body, the handle is positioned at one end of the stick body, the stick body comprises a punching area and the expansion area, and the tip of the expansion area is provided with a high-temperature plasticizing area. According to the utility model, by adopting a sectional design mode, the through hole is formed in the middle of the main body, and the hollow design of the through hole is adopted, so that the product compression space is enlarged, the product diameter is smaller after compression, the product can absorb smaller body fluid amount to achieve an expansion effect, the pain of a patient is reduced under the condition of ensuring that the expansion tension degree and the expansion effect are not influenced, and the waiting time of the patient is shortened.

Description

Liquid-absorbing expandable sponge and sponge rod for cervical dilatation of compressible PVA sponge

Technical Field

The utility model relates to the field of medical sponges, in particular to a liquid-absorbing expandable sponge and a sponge rod for cervical dilatation of a compressible PVA sponge.

Background

The cervical dilator is a medical instrument commonly used in gynecological examination, and in the delivery and abortion operations, the cervical dilator rod can effectively dilate and soften the cervical canal, shorten the operation time and protect the cervix and the fetus of a patient. In the diagnosis and treatment of gynecological diseases, various endoscopes, instruments and medicines enter the uterus, and the cervical orifice needs to be expanded first. The traditional cervical dilator is a series of instruments with different sizes and models made of stainless steel or rigid plastics, the principle is that the cervical dilator is expanded in a physical mechanical expansion mode, the method is time-consuming and labor-consuming, long waiting time is required for both doctors and patients, great pain is caused to the patients, and adverse consequences such as uterine injury, embryo injury, injury bleeding and the like are easily caused. In order to overcome the above disadvantages, although a balloon or a water-filled dilator has been developed, which gradually enlarges the cervical orifice by inflation or water injection, the operation is cumbersome and the balloon is ruptured by some carelessness when used.

The current dilator made of self-expanding material is mechanically compressed, but the diameter of the compressed dilator is large, and the dilator is inconvenient to get in and out of a human body. To achieve smaller diameters, only the original size before compression can be reduced. However, if the original size before compression is reduced, the diameter after expansion is small, and the expansion efficiency is low, so that the ideal cervical dilation effect cannot be achieved. In order to achieve the strength and size of cervical dilatation, the original size before compression needs to be increased, but if the original size before compression is increased, two main problems are caused, namely, the diameter of a compressed product is large, and people are inconvenient to get in and out of the human body; secondly, the compressed product expands and expands by absorbing body fluid at the cervical tissue, if the size is larger, the expansion effect can be achieved only after absorbing a large amount of body fluid, the product needs to be placed at the cervical orifice for several hours in advance, the expansion time is prolonged, discomfort of a human body is caused, and the clinical use requirement is difficult to meet.

In order to realize the slow dilation of the cervix, relieve the pain of patients and reduce the operation difficulty and the occurrence of complications, people utilize the water absorption swelling characteristic of medical polymer materials with good biocompatibility to prepare the slow swelling type disposable cervix dilator with self-swelling performance, for example, a disposable micro-noninvasive injection cervix dilator is provided in the patent with the publication number of CN 107510880A.

Currently available dilators made of self-expanding materials, such as CN110898319A, provide a sponge cervical dilator. Although the compressed powder is mechanically compressed, the compressed powder has a large diameter and is inconvenient to pass in and out of a human body. To achieve smaller diameters, only the original size before compression can be reduced. However, if the original size before compression is reduced, the diameter after expansion is small, and the expansion efficiency is low, so that the ideal cervical dilation effect cannot be achieved. In order to achieve the strength and size of cervical dilatation, the original size before compression needs to be increased, but if the original size before compression is increased, two main problems are caused, namely, the diameter of a compressed product is large, and people are inconvenient to get in and out of the human body; secondly, the compressed product expands and expands by absorbing body fluid at the cervical tissue, if the size is larger, the expansion effect can be achieved only after absorbing a large amount of body fluid, the product needs to be placed at the cervical orifice for several hours in advance, the expansion time is prolonged, discomfort of a human body is caused, and the clinical use requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The present invention is to provide a compressible PVA sponge liquid-absorbing expandable sponge for cervical dilatation and a sponge bar, which are used for solving the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a compressibility PVA sponge matter imbibition expandable sponge for cervical dilatation, includes the sponge body, the sponge body by handle district, punch district and expansion district, punch the middle part that the district is located the sponge body, and punch the district and seted up a plurality of through holes.

Preferably, the punching area is arranged in the middle two fifths area of the sponge body.

Preferably, the through holes are one or a plurality of rectangular through holes which are arranged at intervals, and also can be a plurality of through round holes which are arranged at intervals, and the through holes are 4-6mm away from the side edge of the sponge body.

A liquid suction expandable sponge rod for cervical dilatation of a compressible PVA sponge comprises a handle and a rod body, wherein the handle and the rod body are formed by compressing the liquid suction expandable sponge, the handle is located at one end of the rod body, the rod body comprises a punching area and an expansion area, and a high-temperature plasticizing area is arranged at the tip end of the expansion area.

Preferably, the upwarping angle of the compressed expansion area is 10-30 degrees, and the diameter of the compressed perforated area and the diameter of the expansion area are both 4-8 mm.

Preferably, the diameter of the handle is larger than that of the rod body, anti-slip grains are arranged on the handle, the handle is square, circular or conical, and wavy or convex-point-shaped anti-slip grains are arranged on the outer side of the handle.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, by adopting a sectional design mode, the through hole is formed in the middle of the main body, and the hollow design of the through hole is adopted, so that the product compression space is enlarged, the product diameter is smaller after compression, the product can absorb smaller body fluid amount to achieve an expansion effect, the pain of a patient is reduced under the condition of ensuring that the expansion tension degree and the expansion effect are not influenced, and the waiting time of the patient is shortened.

Drawings

FIG. 1 is a schematic view of the structure of the present invention before compression;

FIG. 2 is a schematic view of the compressed structure of the present invention;

FIG. 3 is a schematic view of another embodiment of the present invention before compression.

In the figure: 1. a handle region; 2. punching a hole area; 21. a through hole; 3. an expansion zone; 4. a handle; 5. a high-temperature plasticizing area.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present embodiment provides a compressive PVA sponge liquid-absorbing expandable sponge for cervical dilatation, which comprises a sponge body made of polyvinyl formal sponge with an acetalization degree of 50% -70%. The sponge material performance scope is: under the saturated water absorption state, the length of the sponge is 50-100 mm, the width of the sponge is 10-25mm, the height of the sponge is 10-20mm, the average pore diameter of the sponge is 0.1-1mm, the Shore hardness is 20-60 degrees, the elongation at break is not lower than 120%, and the stress at break is not less than 0.05 MPa. On the premise of not influencing the expansion function and the expansion force of the cervical part of the front section, in order to enhance the compressibility of the sponge and enable the sponge to better enter the human body, the sponge body is punched, hollowed and compressed; in order to take the sponge body out of the human body more conveniently, the sponge body is divided into a handle area 1, a punching area 2 and an expansion area 3.

The handle area 1 and the expansion area are respectively positioned at two sides of the punching area 2, the punching area 2 is positioned in the middle of the sponge body, and the punching area 2 is provided with a plurality of through holes 21. The punching area is a central area along the long edge of the sponge and in the middle part of the sponge, and the distance between the punching area and the edge is 4-6 mm. The through holes 21 may be one or several rectangular through holes arranged at intervals, or several circular through holes arranged at intervals.

As shown in fig. 3, in order to improve comfort in use, a circular arc structure is provided at the end of the expansion region.

Referring to fig. 2, the compressed PVA sponge imbibition expandable sponge for cervical dilatation is dried and then mechanically compressed into a rod-shaped structure, the diameter of the front end expansion area 3 of the rod body is 4-8mm after compression, and the upwarp angle is 10-30 degrees.

Two fifths of the middle section of the bar body is a punching area 2, and the diameter of the compressed bar body is 4-8 mm.

The handle 4 is larger than the rod body in size, can be designed into a square shape, a round shape or a conical shape and the like so as to be convenient to take, and can be subjected to embossing treatment in wave shape, concave point shape and the like on the handle for increasing the taking friction force, and the embossing depth is 1-2 mm.

The tip part of the sponge is treated in a high-temperature plasticizing area, namely, the high-temperature plasticizing area is treated at the position 2-4mm away from the tip part of the rod body, so that the high-temperature plasticizing area loses the imbibition expansion performance, the hardness of the tip is increased, and the effects of facilitating the entering and exiting of a human body and adjusting the entering angle are achieved

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a compressibility PVA spongy substance imbibition expandable sponge for cervical dilatation, includes the sponge body, its characterized in that: the sponge body is by handle district (1), district (2) and the expansion district (3) punch, punch district (2) are located the middle part of sponge body, and punch district (2) and seted up a plurality of through holes (21).

2. The compressible PVA sponge liquid-absorbing expandable sponge for cervical dilatation according to claim 1, wherein: the punching area (2) is arranged in the area which is two fifths of the middle part of the sponge body.

3. The compressible PVA sponge liquid-absorbing expandable sponge for cervical dilatation according to claim 1, wherein: the through holes (21) are one or a plurality of rectangular through holes arranged at intervals.

4. The compressible PVA sponge liquid-absorbing expandable sponge for cervical dilatation according to claim 1, wherein: the through holes (21) are a plurality of through round holes which are arranged at intervals.

5. The compressible PVA sponge liquid-absorbing expandable sponge for cervical dilatation according to claim 3 or 4, wherein: the distance between the through hole (21) and the side edge of the sponge body is 4-6 mm.

6. The utility model provides a compressibility PVA spongy substance cervix uteri expansion is with imbibition expandable sponge stick which characterized in that: a handle (4) and a body compressed from the liquid-absorbent expandable sponge of claim 1, wherein the handle (4) is located at one end of the body, the body comprises a perforated region (2) and an expanded region (3), and the tip of the expanded region (3) is provided with a high-temperature plasticized region (5).

7. The liquid-absorbing expandable sponge bar for cervical dilatation of compressive PVA sponge according to claim 6, wherein: the upwarp angle of the compressed expansion area (3) is 10-30 degrees.

8. The liquid-absorbing expandable sponge bar for cervical dilatation of compressible PVA sponge according to claim 6 or 7, wherein: the diameter of the punched area (2) and the diameter of the expansion area (3) after compression are both 4-8 mm.

9. The liquid-absorbing expandable sponge bar for cervical dilatation of compressive PVA sponge according to claim 6, wherein: the diameter of the handle (4) is larger than that of the rod body, and anti-skid grains are arranged on the handle.

10. The liquid-absorbing expandable sponge bar for cervical dilatation of compressive PVA sponge according to claim 9, wherein: the handle (4) is square, round or conical, and the wave-shaped or bump-shaped anti-skid lines are arranged on the outer side of the handle.