CN210466975U

CN210466975U - Operation model for transvaginal cervical internal opening cerclage of pregnant woman

Info

Publication number: CN210466975U
Application number: CN201921667475.0U
Authority: CN
Inventors: 陈艳; 杜玲; 刘云华; 夏丽滨; 李冠霏
Original assignee: Second Affiliated Hospital of Kunming Medical University
Current assignee: Second Affiliated Hospital of Kunming Medical University
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-05-05
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses an operation model that is used for pregnant woman to go through endocervical cerclage art of vagina, including bladder lithotomy position model body, bladder lithotomy position model body includes thigh root, pelvis and abdomen, and abdomen uplift simulates the state of pregnancy, disposes the emulation uterus that pregnant period vagina and be in the state of pregnancy in the pelvis, and the cervix of emulation uterus is soft silica gel cervix, and the outer mouthful of soft silica gel cervix is the expansion state, and the diameter of soft silica gel cervix outer mouthful is greater than 3cm and is less than 4cm under the expansion state. The utility model can simulate the relaxed state of the vagina in pregnancy, and can fully expose the cervix under the retracting action of the special draw hook so as to provide enough operation space; meanwhile, the soft silica gel cervix is arranged to meet the indication of the ceruical, and has good elasticity, can be repeatedly sut.

Description

Operation model for transvaginal cervical internal opening cerclage of pregnant woman

Technical Field

The utility model relates to the field of medical equipment, in particular to an operation model for a cervical internal orifice cerclage operation of a pregnant woman in a transvaginal process.

Background

Cervical insufficiency, also known as cervical incompetence and cervical laxity, has less fibrous tissues, elastic fibers, smooth muscles and the like in the cervix of patients with cervical incompetence, or has pathological dilatation and laxity of the cervix due to the reduction of the isthmus sphincter ability caused by the rupture of the fibrous tissues in the cervical orifice. The cervical insufficiency is mainly characterized by premature delivery and recurrent abortion in the middle and late pregnancy, or cervical dilatation in pregnancy with the cervical length shorter than 25mm and no obvious uterine contraction within 4cm, thus causing the amniotic sac to protrude from the external cervical orifice into the vagina. For pregnant women with cystocele of amniotic membrane, one of the effective treatment methods is transvaginal cervical internal opening cerclage, and the existing transvaginal operation methods are various, such as Shirodkar method, McDonald suture method, Cautifiaris method and the like, wherein McDonald cervical cerclage or the improvement method thereof is a relatively simple, safe, effective and commonly used treatment method.

However, the requirement of the McDonald suture is strict and delicate, and when the McDonald suture is performed, the suture is required to be prevented from penetrating the whole cervical layer, because the fetal membrane is broken early due to the repeated friction between the suture and the amnion during the operation or after the operation, and the needle insertion is prevented from being too shallow, because the cervical cutting after the operation is caused and the operation fails; meanwhile, the fastening degree during final ligation is also very careful, so that finger tips can be held or the 8 # uterine dilating rod can be used as a measure, the uterine sac may protrude due to over-loose knotting, the abortion or premature birth is inevitable, the operation fails, and the cervical ischemia necrosis may be caused due to over-tight knotting. For the emergency cervical cerclage, most of cervical orifices are already expanded, the amniotic sac is already protruded out of the external cervical orifice, and at the moment, the amniotic sac needs to be retracted to pull the cervix for cerclage. The small operable vaginal space is inherently available, and the delicate procedures described above are required in the small vaginal space, which requires repeated training of the physician prior to surgery.

However, the current commonly used gynecological examination model has small operable space in the vagina and can not meet the operation requirement of an operation, and the cervix is hard in texture and can not be repeatedly used for practicing suture; the delivery model for obstetric examination has loose vagina and enough operating space, but the uterine orifice is opened completely, and the indication of cervical cerclage is not satisfied. Therefore, how to provide an operation training model which can satisfy the operation of transvaginal cervical cerclage operation is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an operation model which can simulate the more relaxed state of the vagina in the pregnancy and has good elasticity of the cervix and is used for the cervical internal orifice cerclage operation of the pregnant woman in the process of passing through the vagina.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides an operation model that is used for pregnant woman to go through endocervical ligation of cervix, including bladder lithotomy position model body, bladder lithotomy position model body includes thigh root, pelvis and abdomen, abdomen uplift simulation pregnancy state down, dispose pregnancy period vagina and the emulation uterus that is in pregnancy state in the pelvis, the uterus neck of emulation uterus is soft silica gel cervix, the outer mouthful of soft silica gel cervix is the expansion state, under the expansion state the diameter of soft silica gel cervix outer mouthful is less than 4 cm.

Optionally, the soft silica gel cervix is in a shortened state in a length direction, and the length of the soft silica gel cervix is less than 2.5cm in the shortened state.

Optionally, a posture-adjustable simulation fetal model is arranged in the simulation uterus, and the simulation fetal model is wrapped by the air bag.

Optionally, the bladder lithotomy position model body is a hard PVC model body, the outer surface of the hard PVC model body is coated with a soft PVC artificial outer sheath, and the soft PVC artificial outer sheath can be opened.

Optionally, a urethra, a bladder and a simulated rectum are also provided.

Optionally, the exterior of the pregnancy vagina is provided with labia majora and labia minora.

Optionally, the set length of the pregnancy vagina is 12 cm; the pregnancy vagina is a soft PVC vagina.

The utility model discloses for prior art gain following technological effect:

the utility model provides an operation model for the cervical internal orifice cerclage operation of the pregnant woman passing through the vagina, which can simulate the loose state of the vagina in the pregnancy, and can fully expose the cervix under the retracting action of the special draw hook so as to provide enough operation space; meanwhile, the soft silica gel cervix is arranged to meet the indication of the ceruical, and has good elasticity, can be repeatedly sut.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and 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 drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a front view of the operation model of the ring ligation operation of the cervical orifice of the pregnant woman in the transvaginal course;

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

FIG. 3 is a front enlarged view of the external genitalia in the operation model of the ring ligation operation of the cervical orifice of the pregnant woman in transvaginal operation;

fig. 4 is a schematic view of the middle soft silica gel cervical orifice of the present invention in an expanded state;

wherein the reference numerals are: 1. a bladder lithotomy position model body; 2. the root of the thigh; 3. a pelvic cavity; 4. the lower abdomen part; 5. a pregnancy vagina; 6. simulating a uterus; 7. a soft silica gel cervix; 7-1, external port; 8. the urethra; 9. the bladder; 10. simulating a rectum; 11. labia majora; 12. the labia minora.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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.

Based on this, the utility model provides an operation model that is used for pregnant woman to go through internal orifice cerclage of cervix through vagina, including bladder lithotomy position model body, bladder lithotomy position model body includes thigh root, pelvis and abdomen, and the pregnancy state is simulated in the abdomen uplift, disposes the emulation uterus that pregnant period vagina and be in the pregnancy state in the pelvis, and the cervix of emulation uterus is soft silica gel cervix, and the outer mouthful of soft silica gel cervix is the expansion state, and the diameter of soft silica gel cervix outer mouthful is less than 4cm under the expansion state.

The utility model provides an operation model for the cervical internal orifice cerclage operation of the pregnant woman passing through the vagina, which can simulate the loose state of the vagina in the pregnancy, and can fully expose the cervix under the retracting action of the special draw hook so as to provide enough operation space; meanwhile, the soft silica gel cervix is arranged to meet the indication of the ceruical, and has good elasticity.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The first embodiment is as follows:

as shown in fig. 1 to 3, the present embodiment provides an operation model for a transvaginal cervical internal orifice cerclage of a pregnant woman, including a bladder lithotomy position model body 1, the bladder lithotomy position model body 1 includes a thigh root 2, a pelvic cavity 3 and a lower abdomen 4, the lower abdomen 4 is raised to simulate a pregnant state, a pregnancy vagina 5 and a simulated uterus 6 in the pregnant state are configured in the pelvic cavity, the cervix of the simulated uterus 6 is a soft silica gel cervix 7, the soft silica gel material is relatively soft and can be repeatedly sutured; the external orifice 7-1 of the soft silica gel cervix 7 is in an expansion state, and the diameter of the external orifice 7-1 of the soft silica gel cervix in the expansion state, namely the expansion degree, is less than 4cm, so as to meet the indication of cervical cerclage. Meanwhile, the embodiment also provides a soft silica gel cervix 7 in a shortened state in the length direction, the length of a normal cervix is more than 3cm, and the length of the soft silica gel cervix 7 in the shortened state is less than 2.5 cm; this embodiment can provide both cervical shortening and cervical dilation to meet all indications for cervical cerclage, as an alternative. The operation model for the cervical internal orifice cerclage operation of the pregnant woman through the vagina accords with the characteristics of the vagina and the cervix in the gestation period, can simulate the cervix condition of a patient with cervical insufficiency to the greatest extent, and has higher simulation degree.

For patients with cervical insufficiency, preventive transvaginal cerumenal cerclage is performed partially at 14-18 weeks of gestation; during the 18-24 weeks of fetal system ultrasound examination, cervical canal shortening is partially observed, and during close follow-up, progressive cervical canal shortening or ostial dilatation is observed, plus the patient has a history of late pregnancy or preterm birth. And the external cervical orifice of some patients is already expanded during examination, but the expansion degree is less than 4cm, and for the patients, the contraindication of the external cervical cerclage operation is excluded, and the transvaginal cervical internal orifice cerclage operation can be performed when the patients wish to perform the operation. Repeated and excessive cervical traction should be avoided during operation to avoid inducing uterine contraction, which inevitably results in abortion; the position of the sewing needle should reach the level of the cervical internal orifice as much as possible so as to improve the success rate of the operation; the depth of the needle insertion is proper, and the knotting tightness of the suture is proper.

In this embodiment, be provided with the emulation foetus model of position adjustable in the emulation uterus 6, emulation foetus model is wrapped up by the gasbag, simulates the amniotic sac. In the embodiment, if the external opening 7-1 of the soft silica gel cervix in the model is in the above-mentioned dilated state, the simulated fetal model and the air bag should protrude out of the cervix opening into the vagina so as to truly simulate the state of cervical insufficiency of the pregnant woman.

In this embodiment, the lithotomy position model body 1 is preferably a hard PVC model body, the outer surface of the hard PVC model body is covered with a soft PVC artificial outer sheath, and the soft PVC artificial outer sheath can be opened.

In this embodiment, as shown in fig. 2 to 3, the cystectomy model body 1 is further provided with a urethra 8, a bladder 9 and a simulated rectum 10, so as to achieve the effect of truly simulating the pelvic cavity of the pregnant woman. Among them, the urethra 8, the bladder 9 and the artificial rectum 10 are preferably made of soft PVC.

In this embodiment, as shown in fig. 3, the exterior of the pregnancy vagina 5 is provided with labia majora 11 and labia minora 12 to achieve a highly simulated effect.

In this embodiment, the length of the pregnancy vagina 5 is set to 12 cm; the pregnancy vagina 5 is preferably a soft PVC vagina. In the embodiment, the vagina 5 in the pregnancy period has the characteristics of looseness and good elasticity, so that when training operation is carried out, the cervix and the vagina can be fully exposed through the vagina rear wall draw hook and the vagina side wall draw hook, and further, a sufficient operation space is provided.

Therefore, the operation model for the cervical internal orifice cerclage of the pregnant woman through the vagina, provided by the utility model, can simulate the lax state of the vagina in the pregnancy, and can fully expose the cervix under the retracting action of the special draw hook so as to provide enough operation space; meanwhile, the soft silica gel cervix is arranged to meet the indication of the ceruical, and has good elasticity, can.

It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. An operation model for a transvaginal endocervical cerclage of a pregnant woman is characterized in that: including bladder lithotomy position model body, bladder lithotomy position model body includes thigh root, pelvis and abdomen, the simulation state of pregnancy is carried out in the abdomen uplift down, the pelvic cavity disposes pregnancy vagina and is in the emulation uterus of the state of pregnancy, the cervix of emulation uterus is soft silica gel cervix, the outer mouthful of soft silica gel cervix is the expansion state, under the expansion state the diameter of soft silica gel cervix outer mouthful is less than 4 cm.

2. The operating model for a transvaginal endocervical cerclage of a pregnant woman according to claim 1, characterized in that: the soft silica gel cervix is in a shortened state in the length direction, and the length of the soft silica gel cervix is less than 2.5cm in the shortened state.

3. The operating model for a transvaginal endocervical cerclage of a pregnant woman according to claim 1, characterized in that: a simulation fetal model with an adjustable body position is arranged in the simulation uterus, and the simulation fetal model is wrapped by an air bag.

4. The operating model for a transvaginal endocervical cerclage of a pregnant woman according to claim 1, characterized in that: the bladder lithotomy position model body is a hard PVC model body, the outer surface of the hard PVC model body is coated with a soft PVC simulation outer leather sleeve, and the soft PVC simulation outer leather sleeve can be opened.

5. The operating model for a transvaginal endocervical cerclage of a pregnant woman according to claim 1, characterized in that: also provided with a urethra, a bladder and a simulated rectum.

6. The operating model for a transvaginal endocervical cerclage of a pregnant woman according to claim 1, characterized in that: the exterior of the pregnancy vagina is provided with labia majora and labia minora.

7. The operating model for a transvaginal endocervical cerclage of a pregnant woman according to claim 1, characterized in that: the set length of the pregnancy vagina is 12 cm; the pregnancy vagina is a soft PVC vagina.