KR20220131643A - Customized pessary for preventing premature bityh and its manufacturing method - Google Patents

Abstract

The present invention relates to a maternity customized pessary for preventing premature birth and a manufacturing method thereof, and more specifically, to a maternity customized pessary for preventing premature birth and a manufacturing method thereof capable of preventing the premature birth. The maternity customized pessary for preventing premature birth comprises: a pessary body which is provided to support a lower part of a uterus; a secretion hole which is formed in the pessary body; a cylinder which is combined with the pessary body, and stores a fluid to be discharged by the secretion hole; and a controlling unit which is provided to control discharging of the fluid stored in the cylinder in response to one or more pieces of information among a maternal gestational week, a cervical length, and pressure applied to the pessary body.

Description

CUSTOMIZED PESSARY FOR PREVENTING PREMATURE BITYH AND ITS MANUFACTURING METHOD

The present invention relates to a pessary for preventing premature birth customized for a mother and a method for manufacturing the same, and more particularly to a pessary for preventing premature birth customized for a mother for preventing premature birth and a method for manufacturing the same.

There are various causes of premature birth, including placenta previa, placental abruption, amniotic fluid infection, cervical incompetence, uterine malformations, preeclampsia, trauma, surgery, and fetal malformations. Smoking and alcohol consumption are also known to cause premature birth. have.

In the 20 years since the 1990s, the survival rate of premature babies born between 23 and 28 weeks of gestation has significantly increased, reaching 15% at 23 weeks gestation, 55% at 24 weeks gestation, and 80% at 25 weeks gestation.

As a result, the World Health Organization (WHO) sets the number of gestational weeks at which a premature baby can survive, and the American Academy of Obstetrics and Gynecology sets it as 23 weeks gestation, respectively.

However, during delivery up to the 26th week of pregnancy, about 80% of premature babies show large and small abnormalities. In addition, if a premature baby (未熟兒) is born before 37 weeks of pregnancy, there is a possibility that various complications may be induced.

However, according to data from the National Statistical Office of the Republic of Korea, 6.47% of newborns born in 2013 in Korea were premature, and the number is increasing every year.

Therefore, there is a need for a technique to prevent premature birth, and accordingly, a method of using a pessary has been devised.

However, since the conventional pessary uses a ready-made product and is not personalized, it is necessary to try the correct size while wearing a pessary of various sizes one after another, and there is a problem that cannot be used if the size does not match.

In addition, the required pessary varies according to the volume and shape of the cervix according to an individual's vaginal shape, but there is a problem that there is only one type of pessary currently available in Korea.

In addition, in the prior art, since it was necessary to directly administer the drug by inserting a finger into the vagina, it is difficult to administer the drug regularly, and there is a risk of inflammation.

Japanese Patent Laid-Open No. 2014-509922

An object of the present invention for solving the above problems is to provide a pessary for preventing premature birth and a method for manufacturing the same, customized for mothers for preventing premature birth.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

The configuration of the present invention for achieving the above object is a pessary body provided to support the lower part of the uterus; Secretion hole formed in the pessary body; a cylinder coupled to the pessary body and storing the fluid to be discharged by the secretion hole; and a control unit provided to control the discharge of the fluid stored in the cylinder in response to any one or more information of the gestational age of the mother, the length of the cervix, and the pressure applied to the pessary body. provides

In an embodiment of the present invention, the pessary body may be characterized in that it is formed in a donut shape.

In an embodiment of the present invention, the pessary body may be characterized in that it is provided so that the thickness, aspect ratio, and maximum diameter of the donut are determined in response to the volume and shape of the cervix.

In an embodiment of the present invention, the cylinder may be characterized in that progesterone is stored.

In an embodiment of the present invention, the pessary body may be characterized in that the antibiotic coating is made.

In an embodiment of the present invention, the control unit may be characterized in that it is provided to adjust the discharge interval and discharge amount of the fluid discharged through the secretion hole.

The configuration of the present invention for achieving the above object is a method for manufacturing a pessary for preventing premature birth customized to a mother, comprising: a) deriving the volume and shape of the cervix of the mother; b) 3D modeling the shape of the pessary corresponding to the derived volume and shape of the cervix of the mother; And c) provides a method for manufacturing a pessary for preventing premature birth customized to mothers, characterized in that it comprises the step of manufacturing the pessary by a 3D printer in the 3D modeled shape.

In an embodiment of the present invention, the step a) comprises: a1) inserting a balloon-shaped probe into the vagina; a2) the step of injecting a liquid into the probe inserted into the vagina and expanding; a3) irradiating ultrasonic waves to the probe portion to derive a shape of the probe portion; and a4) deriving the volume and shape of the cervix of the mother according to the shape of the probe part.

In an embodiment of the present invention, step b) may be characterized in that the shape of the pessary corresponding to the volume and shape of the cervix of the mother derived in step a4) is modeled.

In an embodiment of the present invention, in step a4), the sag of the uterus, rectum, and bladder according to the shape of the mother's vagina is further provided to be derived, and in step b), the derived uterus, rectum, and bladder It may be characterized in that the shape of the pessary is modeled to support the uterus, rectum, and bladder in response to sagging.

In an embodiment of the present invention, the step a) comprises: i) inserting a balloon-shaped probe into the vagina; ii) injecting a fluid into the probe part inserted into the vagina and expanding; iii) measuring a pressure value for each position by a plurality of pressure sensors provided on an outer circumferential surface of the probe unit; and iv) deriving the volume and shape of the cervix of the mother using the pressure value for each position of the probe unit.

The effect of the present invention according to the configuration as described above, it is possible to manufacture a pessary corresponding to the volume and shape of the cervix of the mother.

It is possible to prevent premature birth by periodically secreting progesterone from the secretion hole of the pessary.

The effects of the present invention are not limited to the above effects, and it should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is an exemplary view showing a state in which a pessary for preventing premature birth customized for a mother according to an embodiment of the present invention is mounted on the cervix of the mother.
Figure 2 is an exemplary view of a pessary for preventing premature birth customized to mothers according to an embodiment of the present invention.
Figure 3 is an exemplary view showing various shapes of the pessary for preventing premature birth customized to mothers according to an embodiment of the present invention.
Figure 4 is a flowchart of a method of manufacturing a pessary for preventing premature birth customized to mothers according to an embodiment of the present invention.
5 is a flowchart of steps in which the volume and shape of the cervix of the mother are derived according to the first embodiment of the present invention.
6 is an exemplary diagram of a step in which the volume and shape of the cervix of the mother are derived according to the first embodiment of the present invention.
7 is a flowchart of steps in which the volume and shape of the cervix of the mother are derived according to the second embodiment of the present invention.
8 is an exemplary diagram of a step in which the volume and shape of the cervix of the mother are derived according to the second embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is "connected (connected, contacted, coupled)" with another part, it is not only "directly connected" but also "indirectly connected" with another member interposed therebetween. "Including cases where In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary view showing a state in which a pessary for preventing premature birth customized for a mother according to an embodiment of the present invention is mounted on the cervix of the mother, and FIG. 2 is a pessary for preventing premature birth customized for a mother according to an embodiment of the present invention It is also an example.

As shown in FIGS. 1 and 2 , the pessary 100 for preventing premature birth customized to the mother includes a pessary body 110 , a secretion hole 120 , a cylinder 130 , and a control unit 140 .

The pessary body 110 is formed in the shape of a donut, and may be provided to fit into the neck of the uterus (2).

The pessary body 110 may be provided so that the thickness, aspect ratio, and maximum diameter of the donut are determined in response to the volume and shape of the cervix of the uterus (2).

Figure 3 is an exemplary view showing various shapes of the pessary for preventing premature birth customized to mothers according to an embodiment of the present invention.

As an example, as shown in FIG. 3 , the thickness and aspect ratio diameter of the pessary body 110 are deformed according to the volume and shape of the cervix of the uterus 2 , so that the design and manufacture may be performed.

Accordingly, the pessary body 110 may be provided so as not to be accurately fitted into the cervix of the mother and not to deviate from a predetermined position.

In addition, the pessary body 110 may be provided such that the thickness, aspect ratio, and maximum diameter of the donut are further determined in response to the amount of sagging of the uterus, rectum, and bladder.

As an example, when it is necessary to support only the sag of the uterus 2 , as shown in (a) of FIG. 3 , a donut shape having the same aspect ratio may be formed. However, when sagging occurs in the rectum 3 and bladder 4 in addition to the uterus 2, the pessary body 110 as shown in FIG. 3 (b) to support the sagging rectum 3 and bladder 4 ) can be extended by deforming the thickness and aspect ratio.

As another example, when sagging occurs in any one of the rectum (3) and bladder (4) in addition to the uterus (2), the pessary body 110 toward the drooping organ as shown in (c) of FIG. 3 to support the saggy organ. ) may be provided so that the thickness is thicker and the aspect ratio is deformed accordingly to extend.

As such, according to the present invention, the shape of the pessary 100 may be deformed to support the sag of the rectum 3 and the bladder 4 as well as the uterus 2 .

In addition, the pessary body 110 is provided to be coated with an antibiotic, so that inflammation does not occur even when the pessary body 110 is inserted, and may be provided to have a therapeutic effect on vaginal inflammation.

The pessary body 110 of the present invention may be made of a silicone material that is harmless even when inserted into the human body. However, the material of the pessary body 110 is not limited thereto. For example, the pessary body 110 may be made of a shape memory alloy material. Specifically, the pessary body 110 of the present invention is made to increase in size only to a certain pressure in the vagina, like the shape memory alloy principle that the size changes at a specific temperature, so that the size automatically fits the size of the inner cervix of the vagina (1) It may be arranged to be adjusted.

One or more secretion holes 120 may be provided in the circumferential direction of the pessary body 110 , and may be provided in the form of a hole connected to the cylinder 130 to discharge progesterone.

The cylinder 130 is provided coupled to the pessary body 110, and the progesterone and the like may be stored therein.

At this time, the cylinder 130 may be provided so that estrogen, lubricating oil, etc. are separated and further stored.

The control unit 140 may be provided in the pessary body 110 or the cylinder 130 to control the discharge of the fluid stored in the cylinder 130 .

Specifically, the control unit 140 may be provided to adjust the discharge interval and discharge amount of the fluid discharged through the secretion hole (120).

The control unit 140 may be provided to set a time interval and amount of secretion of progesterone, lubricating oil, estrogen, etc. by the secretion hole 120 . For this reason, it is possible to improve the therapeutic effect by continuously injecting an appropriate amount of the drug required for the mother at a predetermined time.

For example, the control unit 140 may control the amount of discharge by adjusting the number of openings and closings of the plurality of secretion holes 120 .

In addition, the control unit 140 may be provided to adjust the discharge amount and the discharge interval of progesterone in response to the pregnancy cycle and the length of the cervix.

For example, if the length of the cervix of a mother who has not experienced premature birth is 20 mm or less before or 24 weeks of pregnancy, it may be provided to increase the amount of progesterone discharged. In addition, it may be arranged to increase the amount of progesterone excreted even if you have experienced premature birth at less than 34 weeks of gestation, and the length of the cervix is less than 25 mm before 24 weeks of gestation.

In addition, the control unit 140 may be provided to control the discharge of lubricant or hormone treatment such as estrogen to the mother according to the shape of the vagina and the degree of sagging of the uterus 2 , rectum 3 , and bladder 4 .

In addition, the pessary body 110 may be provided with a pressure sensor (not shown) that can measure the pressure applied from the cervix.

Accordingly, the control unit 140 is provided to control the discharge of the fluid stored in the cylinder in response to any one or more information of the pressure applied to the pessary body 110 from the mother's cervix, the number of weeks of gestation, and the length of the cervix. can be

For example, when the pressure applied to the pessary body 110 from the cervix is greater than a preset value compared to the number of weeks of pregnancy, it may be provided to increase the amount of fluid secreted from the secretion hole 120 .

Figure 4 is a flowchart of a method of manufacturing a pessary for preventing premature birth customized to mothers according to an embodiment of the present invention.

Referring to FIG. 4 , in the method of manufacturing a pessary for preventing premature birth customized for a mother, first, a step (S110) of deriving the volume and shape of the cervix of the mother may be performed.

In the step (S110) in which the volume and shape of the cervix of the mother are derived, it may be provided to derive the volume and shape of the cervix of the mother and further derive the shape of the vagina.

5 is a flowchart of steps in which the volume and shape of the cervix of a mother according to the first embodiment of the present invention are derived, and FIG. 6 is a volume and shape of the cervix of the mother according to the first embodiment of the present invention. This is an example of the steps to be taken.

5 and 6, in the step (S110) of deriving the volume and shape of the cervix of the mother according to the first embodiment, first, the step (S111) of inserting the probe in the form of a balloon into the vagina is to be performed. can

Here, the probe unit may be the first probe unit 10 . The first probe unit 10 may include a balloon unit 11 , a handle 13 , and an injection tube 14 .

The balloon portion 11 is formed to extend long in the longitudinal direction, it may be formed to be inserted into the vagina (1). Specifically, the balloon unit 11 is formed to have a length corresponding to the length of the vagina and may be provided to be expandable as the liquid is injected therein.

The handle 13 may be formed to extend from the balloon portion (11).

The injection tube 14 is formed extending from the handle 13, and may be provided to inject a liquid into the balloon 11 or to discharge the liquid inside the balloon 11.

In addition, the handle 13 may be provided with a button connected to the valve so that the injection tube 24 can control whether the liquid is injected into the balloon unit 11 .

After the balloon-shaped probe part is inserted into the vagina (S111), the liquid is injected into the probe part inserted into the vagina and expanded (S112) may be performed.

In the step (S112) in which the liquid is injected and expanded into the probe part inserted into the vagina, the liquid may be injected into the balloon part 11 using the injection tube 14 . When the liquid is injected, the balloon 11 may be expanded and deformed into a shape corresponding to the shape of the cervix inside the vagina.

After the step (S112) of injecting the liquid into the probe part inserted into the vagina and expanding it (S112), a step (S113) in which the shape of the probe part is derived by irradiating the probe part with ultrasound may be performed.

In the step S113 of deriving the shape of the probe part by irradiating the ultrasonic wave to the probe part, the ultrasonic wave may be provided to be irradiated to the first probe part 10 by the ultrasonic part. When ultrasonic waves are irradiated to the first probe part 10 , the shape of the first probe part 10 may be photographed by the liquid inside the first probe part 10 .

In step S113 of deriving the shape of the probe part by irradiating the ultrasonic wave to the probe part, the shape of the first probe part 10 is irradiated by irradiating ultrasonic waves from various directions in order to more accurately derive the shape of the first probe part 10 . may be arranged to be photographed from various angles.

After the step (S113) of deriving the shape of the probe unit by irradiating the probe with ultrasound (S113), the step of deriving the shape of the mother's vagina according to the shape of the probe unit (S114) may be performed.

In the step of deriving the shape of the vagina of the mother according to the shape of the probe part ( S114 ), the shape of the vagina 1 may be derived using the shape of the first probe part 10 . More specifically, it may be provided to derive the volume and shape of the cervix by using the shape of the first probe unit 10 .

For example, it may be provided to derive the shape of the vagina 1 by combining the shapes of the balloon part 11 of the first probe part 10 taken from various angles with ultrasound.

7 is a flowchart of a step in which the volume and shape of a cervix of a mother according to a second embodiment of the present invention is derived, and FIG. 8 is a volume and shape of a cervix of a mother according to a second embodiment of the present invention This is an example of the steps to be taken.

7 and 8 , in the step (S110) of deriving the volume and shape of the cervix of the mother according to the second embodiment, the step (S211) of inserting the probe in the form of a balloon into the vagina may be performed. .

In the step S211 of inserting the balloon-shaped probe into the vagina, the probe may be the second probe 20 . The second probe unit 20 may include a balloon unit 21 , a pressure sensor 22 , a handle 23 , and an injection tube 24 .

The balloon portion 21 is formed to extend long in the longitudinal direction, it may be formed to be inserted into the vagina (1). Specifically, the balloon unit 21 is formed to extend to have a length corresponding to the length of the vagina, and may be provided to be expandable as a fluid is injected therein.

The pressure sensor 22 is formed on the outer circumferential surface of the balloon unit 21, and may be provided in plurality. Specifically, the pressure sensor 22 may be formed at regular intervals along the circumference and the longitudinal direction of the balloon part. And, the pressure sensor 22 may be provided to measure the pressure applied by the inner wall of the vagina (1) when the balloon unit 21 is inflated.

The handle 23 may be formed to extend from the balloon portion (21).

The injection tube 24 is formed extending from the handle 23 , and may be provided to inject a fluid into the balloon unit 21 or to discharge the fluid inside the balloon unit 21 .

In addition, the handle 23 may be provided with a button connected to the valve so that the injection tube 24 can control whether the fluid is injected into the balloon unit 21 .

After the balloon-shaped probe is inserted into the vagina (S211), a fluid is injected into the probe inserted into the vagina to expand (S212).

In the step (S212) in which the fluid is injected and expanded into the probe part inserted into the vagina, the fluid may be injected into the balloon part 21 using the injection tube 24 . When the fluid is injected, the balloon 21 may be expanded and deformed into a shape corresponding to the shape of the vagina.

After the step (S212) of injecting and expanding the fluid into the probe part inserted into the vagina, the step (S213) of measuring pressure values for each position by a plurality of pressure sensors provided on the outer peripheral surface of the probe part may be performed.

In the step (S213) of measuring the pressure value for each position by a plurality of pressure sensors provided on the outer peripheral surface of the probe part, when the balloon part 21 is inflated, the pressure sensor 22 is placed on the inner wall of the vagina (1). It may be provided to measure the pressure applied by the

After the step (S213) of measuring the pressure value for each position by the plurality of pressure sensors provided on the outer peripheral surface of the probe part, the step (S214) of deriving the shape of the vagina of the mother using the pressure value for each position of the probe part (S214) can be performed. have.

In the step (S214) of deriving the shape of the vagina of the mother using the pressure value for each position of the probe unit (S214), according to the pressure value for each position measured by the pressure sensor 212 in the second probe unit 20, the vagina ( 1) may be provided to derive the internal shape. For example, as the internal space of the vagina 1 is wide, the pressure is relatively low, and as the internal space of the vagina 1 is narrow, the pressure is relatively increased. Using this, the internal shape of the vagina 1 can be derived according to the pressure value of each pressure sensor 22 . Deriving the internal shape of the vagina 1 may be performed by a programming unit programmed to derive the internal shape of the vagina 1 through real-time changes in pressure values.

In addition, in the step (S214) of deriving the shape of the vagina of the mother using the pressure value for each position of the probe part, it may be provided to measure the volume and shape of the cervix through the shape of the vagina (1). Further, it may be provided to simultaneously measure the degree of protrusion due to sagging of the uterus 2 , the rectum 3 , and the bladder 4 through the shape of the vagina 1 .

As such, the present invention may be provided to derive the volume and shape of the cervix by accurately deriving the shape of the vagina of the mother using the first probe unit 10 or the second probe unit 20 .

In addition, in the step (S114) of deriving the shape of the mother's vagina according to the shape of the probe part, through the shape of the vagina (1), the degree of protrusion due to sagging of the uterus (2), rectum (3), and bladder (4) may be provided to measure simultaneously.

Referring back to Figure 5, after the step (S110) of deriving the volume and shape of the cervix of the mother, the shape of the pessary corresponding to the volume and shape of the cervix of the mother is 3D modeled (S120) can be performed.

In the 3D modeling step (S120) of the shape of the pessary corresponding to the derived volume and shape of the cervix of the mother, the shape of the pessary 100 for preventing premature birth suitable for the previously derived mother's vaginal shape is modeled. can be provided.

As such, after the 3D modeling step (S120) of the shape of the pessary corresponding to the derived shape of the mother's vagina, the step (S130) of manufacturing the pessary with the 3D modeled shape by a 3D printer may be performed.

In the step ( S130 ) of manufacturing the pessary in a 3D modeled shape by a 3D printer, the pessary may be formed by 3D printing in a shape previously modeled by the modeling unit.

The present invention prepared as described above measures the shape of the mother's vagina (1) to measure the volume and shape of the cervix to manufacture a personalized pessary, so the pessary is stably inserted into the vagina to maintain a fixed state. have.

In addition, the present invention measures the sag of the uterus (2), rectum (3) and bladder (4) at the same time to prevent sagging of organs such as the uterus (2) as well as rectum (3) and bladder (4). may be

And, according to the present invention, it is possible to prevent premature birth by properly discharging progesterone to suppress premature birth.

In addition, the present invention is less likely to cause inflammation than when the drug is directly injected by secreting the drug periodically, and the drug can be injected without forgetting, so that the therapeutic effect can be improved.

The foregoing description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and likewise components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1: vagina
2: Uterus
3: work
4: bladder
10: first probe unit
11: Balloon
13: handle
14: injection tube
20: second probe unit
21: balloon part
22: pressure sensor
23: handle
24: injection tube
100: pessary for the prevention of preterm birth tailored to the mother
110: pessary body
120: secretory hall
130: cylinder
140: control unit

Claims (11)

The pessary body provided to support the lower part of the uterus;
a secretion hole formed in the pessary body;
a cylinder coupled to the pessary body and storing the fluid to be discharged by the secretion hole; and
The gestational age of the mother, the length of the cervix, in response to any one or more information of the pressure applied to the pessary body, the pessary for the prevention of premature birth customized to the mother comprising a control unit provided to control the discharge of the fluid stored in the cylinder.
The method of claim 1,
The pessary body is a pessary for preventing premature birth customized for mothers, characterized in that formed in a donut shape.
The method of claim 1,
The pessary body,
A pessary for the prevention of premature birth customized for mothers, characterized in that the thickness, aspect ratio and maximum diameter of the donut are determined in response to the volume and shape of the cervix.
The method of claim 1,
In the cylinder,
A pessary for the prevention of premature birth customized to the mother, characterized in that progesterone is stored.
The method of claim 1,
The pessary body,
A pessary for the prevention of premature birth customized to the mother, characterized in that it is coated with antibiotics.
The method of claim 1,
The control unit is
A pessary for the prevention of premature birth customized to mothers, characterized in that it is provided to control the discharge interval and discharge amount of the fluid discharged through the secretion hole.
In the manufacturing method of the pessary for preventing premature birth customized to the mother according to claim 1,
a) deriving the volume and shape of the cervix of the mother;
b) 3D modeling the shape of the pessary corresponding to the derived volume and shape of the cervix of the mother; and
c) The manufacturing method of the pessary for preventing premature birth customized to mothers, characterized in that it comprises the step of manufacturing the pessary by a 3D printer in the 3D modeled shape.
8. The method of claim 7,
Step a) is,
a1) the step of inserting the probe in the form of a balloon into the vagina;
a2) the step of injecting a liquid into the probe inserted into the vagina and expanding;
a3) irradiating ultrasonic waves to the probe portion to derive a shape of the probe portion; and
a4) The method of manufacturing a pessary for preventing premature birth customized to mothers, characterized in that it comprises the step of deriving the volume and shape of the cervix of the mother according to the shape of the probe portion.
9. The method of claim 8,
Step b) is,
A method of manufacturing a pessary for preventing premature birth customized to mothers, characterized in that the shape of the pessary corresponding to the volume and shape of the cervix of the mother derived in step a4) is modeled.
9. The method of claim 8,
In step a4), the sag of the uterus, rectum, and bladder according to the shape of the mother's vagina is further derived,
In step b), in response to the derived sag of the uterus, rectum, and bladder, the method of manufacturing a pessary for preventing premature birth customized to mothers, characterized in that the shape of the pessary is modeled to support the uterus, rectum, and bladder.
8. The method of claim 7,
Step a) is,
i) inserting the probe in the form of a balloon into the vagina;
ii) injecting a fluid into the probe part inserted into the vagina and expanding;
iii) measuring a pressure value for each position by a plurality of pressure sensors provided on an outer circumferential surface of the probe unit; and
iv) The method of manufacturing a pessary for preventing premature birth customized to mothers, comprising the step of deriving the volume and shape of the cervix of the mother using the pressure value for each position of the probe portion.

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