CN215018698U

CN215018698U - Front-mounted placenta operation visual field expanding exposure device

Info

Publication number: CN215018698U
Application number: CN202120062155.3U
Authority: CN
Inventors: 刘燕燕; 曾万江; 刘海意
Original assignee: Tongji Medical College of Huazhong University of Science and Technology
Current assignee: Tongji Medical College of Huazhong University of Science and Technology
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-12-07
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a vision field expanding and exposing device for the operation of the placenta, which is used for lifting the lower uterine segment upwards in the vagina of the self-delivery woman in the clinical operation and does not obstruct the operation space of the pelvic cavity operation. The cervical vertebra drainage device comprises a cervical support in a cone frustum or elliptical cone frustum structure and an operating handle in a slender rod-shaped structure, wherein a first drainage channel is formed in the cervical support along the axial lead of the cervical support, and a second drainage channel is formed in the operating handle along the axial lead of the operating handle; the round or oval upper bottom surface of the cervical support is seamlessly and smoothly connected with the head end surface of the operating handle, and the first drainage channel and the second drainage channel are also seamlessly butted and communicated; the circular or oval lower bottom surface center of the cervical support is provided with an inward concave sucker groove suitable for abutting and fitting with the cervix of a puerpera, and the tail end surface center of the operating handle is provided with a drainage tube interface. The device has the advantages of simple and practical structure, convenient and fast operation, capability of avoiding blind areas of visual examination, improvement of the success rate of operations, and suitability for popularization and application in various hospital obstetrics and gynecology departments.

Description

Front-mounted placenta operation visual field expanding exposure device

Technical Field

The utility model relates to an auxiliary medical instrument in the cesarean section operation of gynaecology and obstetrics, in particular to a preposed placenta operation visual field expanding exposure device.

Background

The pre-placenta is one of the serious complications in the pregnant woman production, and means that the placenta is attached to the lower uterine segment after 28 weeks of pregnancy, the lower edge of the placenta reaches or covers the internal cervical orifice, and the placenta is positioned lower than the fetal presenting part. The preposed placenta can be complicated with a series of adverse fations of the lying-in woman, which leads to obviously increased risks of placenta implantation, postpartum hemorrhage, intra-operative or post-operative blood transfusion, uterine artery ligation, hysterectomy and the like. The preposed placenta is the most common cause of vaginal bleeding in late gestation of pregnant women, and has the clinical manifestations that wide, active and turbulent bleeding appears on the placenta stripping surface after delivery of a fetus, especially on the internal cervical orifice and the lower uterine segment, and the placenta is very easily converted into unpredictable and uncontrollable heavy bleeding, even endangering the lives of the pregnant women and the newborns.

In the traditional preposed placenta operation process, because the lower uterine segment of a lying-in woman is narrow in anatomical structure close to the cervix and difficult to expose, the anatomical structure becomes a blind area of an operation visual field, and the blind area is the area with the most surging bleeding, medical care personnel need to thoroughly suture a wide bleeding surface in a very short time, and the medical care personnel need to succeed once and cannot suture repeatedly, otherwise, the postpartum hemorrhage of the lying-in woman is very easily caused. This area is extremely difficult for the operator to see and palpate, and requires little space for manipulation. Therefore, how to quickly and fully expose the lower uterine segment and the cervical visual field blind area of the lying-in woman, thereby optimizing the surgical skill, improving the accuracy of the surgical operation and avoiding the great bleeding in the placenta-preposing operation becomes the key point of the operation.

In order to solve the above problems, medical workers have been seeking an auxiliary medical instrument which can effectively expose the lower uterine segment of a parturient woman, help an operator to enlarge the operation visual field and the operation space, and rapidly suture the lower uterine segment during a pre-placental operation, but no satisfactory progress has been achieved at present.

Disclosure of Invention

The utility model aims at providing a simple structure is practical, convenient operation is swift, can avoid the blind area of looking a doctor, improve the leading placenta operation field of vision of operation success and extend and expose device.

In order to realize the purpose, the utility model discloses a leading placenta operation field of vision expands exposes device for the hypomere of uterus is lifted upwards in the self-delivering woman vagina in clinical operation, and does not hinder pelvic cavity operation space. It is characterized in that: the cervical vertebra drainage device comprises a cervical support in a cone frustum or elliptical cone frustum structure and an operating handle in a slender rod-shaped structure, wherein a first drainage channel is formed in the cervical support along the axial lead of the cervical support, and a second drainage channel is formed in the operating handle along the axial lead of the operating handle; the round or oval upper bottom surface of the cervical support is seamlessly and smoothly connected with the head end surface of the operating handle, and the first drainage channel and the second drainage channel are also seamlessly butted and communicated; the circular or oval lower bottom surface center of the cervical support is provided with an inward concave sucker groove suitable for abutting and fitting with the cervix of a puerpera, and the tail end surface center of the operating handle is provided with a drainage tube interface.

As a specific scheme, the size parameters of the cervical support of the truncated cone structure are as follows: the diameter of the round upper bottom surface is 15-25 mm; the diameter of the round lower bottom surface is 40-50 mm; the height between the upper bottom surface and the lower bottom surface is 55-65 mm; the length of the corresponding operating handle is 125-135 mm.

As a second specific scheme, the parameters of the size of the cervical support of the elliptical truncated cone structure are as follows: the diameter of the long axis of the elliptic upper bottom surface is 20-30 mm, and the diameter of the short axis of the elliptic upper bottom surface is 15-25 mm; the diameter of the long axis of the elliptical lower bottom surface is 45-55 mm, and the diameter of the short axis of the elliptical lower bottom surface is 35-40 mm; the height between the upper bottom surface and the lower bottom surface is 55-65 mm; the length of the corresponding operating handle is 125-135 mm.

Furthermore, a first transition arc surface is arranged on the periphery of the circular or elliptical lower bottom surface of the cervical support. Thus, the cervical collar can be smoothly and softly pushed into the vagina of the lying-in woman, and the vagina is prevented from being stimulated and scratched.

Furthermore, a second transition arc surface is arranged on the periphery of the sucker groove. Therefore, the lower bottom surface of the cervical support can be firmly adsorbed and sufficiently attached to the cervix of the puerpera, so that the lower uterine segment can be stably and reliably supported.

Furthermore, the outer surface of the operating handle is uniformly distributed with anti-skid flanges. Therefore, the operation handle is beneficial to keeping stable operation for operators, and the lifting position deviation caused by sliding or rotating of the operation handle is avoided.

Still further, the cervical collar is an integrated member formed by medical silica gel materials or a combined member of which the surface is covered with a medical silica gel layer. Therefore, the outer surface of the cervical support is made of medical silica gel, the cervical support is relatively soft in material, has certain toughness and good compatibility with vaginal tissues of a puerpera, and can support the lower uterine segment gently, smoothly and powerfully.

Still further, the operating handle is an integrated component formed by medical plastic materials or a combined component with a medical plastic layer covered on the surface. Like this, the handle surface is medical plastics, and its material is harder relatively, and low cost, and the operator of being convenient for holds, and is safe harmless to mother and infant.

The utility model discloses when being applied to the leading placenta operation of clinical of gynaecology and obstetrics, only need medical personnel to hand the operating handle, slowly and steadily push the cervical support to the cervix uteri from the lying-in woman vagina, the sucking disc groove and the sufficient laminating of cervix uteri of bottom surface central authorities under the cervical support to upwards lift the bottle opener hypomere can. A small amount of bleeding of the lying-in woman can be led out through the first drainage channel and the second drainage channel in sequence in the operation process and flows into the drainage bag through the drainage tube.

The utility model has the advantages that: the design of cervical support is circular cone platform or oval frustum structure, can be according to the shape and the size parameter of the preferred adaptation of the slight difference of different lying-in woman uterus, and the design of cervical support front end has indent sucking disc groove, more is favorable to it and the abundant butt of cervix and closely laminates. The center of the cervical support and the operating handle is provided with a through drainage channel, so that medical personnel can observe the vaginal bleeding condition of the puerpera in real time, and can take corresponding measures in time. When the uterus lower section suturing device is used, the uterus lower section is lifted upwards only from the vagina of a lying-in woman, operation space of pelvic cavity operation is not obstructed completely, the uterus lower section can be exposed to the maximum extent, operation visual field blind areas are reduced greatly, an operator can see and palpate the uterus to the maximum extent, the uterus lower section can be sutured fast, bleeding in the operation is effectively reduced, uterus retention rate is increased, mother and baby safety is guaranteed, and therefore the survival quality of the lying-in woman is improved. Meanwhile, the suture needle has the advantages of simple structure, convenient use, low cost and obvious effect, can be widely applied to the suture in operations of inland type preposed placenta, central type preposed placenta and placenta implantation, and is suitable for popularization and application in obstetrics and gynecology department of all hospitals.

Drawings

Fig. 1 is a schematic structural view of a front view of the device for expanding and exposing a front placenta operation field according to embodiment 1.

FIG. 2 is a schematic sectional view A-A of FIG. 1.

Fig. 3 is a left side view of the structure of fig. 1.

Fig. 4 is a schematic structural view of the front view of the device for expanding and exposing the surgical field of the placenta in embodiment 2.

Fig. 5 is a left side view of the structure of fig. 4.

The components in the figures are numbered as follows: a cervical support 1 (wherein, a first drainage channel 1a, an inner concave sucker groove 1b, a first transition arc surface 1c and a second transition arc surface 1 d); an operation handle 2 (wherein: a second drainage channel 2a, a drainage tube interface 2b, an anti-skid flange 2 c).

Detailed Description

The present invention is described in further detail below with reference to the following figures and specific examples, which should not be construed as limiting the invention.

Example 1

As shown in fig. 1 to 3, the device for expanding and exposing the visual field of the front placenta operation described in this embodiment is mainly composed of a cervical holder 1 in an elliptical frustum structure and an operating handle 2 in a slender rod-like structure. The cervical support 1 is integrally formed by adopting a medical silica gel material with good compatibility with human tissues, and the dimensional parameters are as follows: the diameter of the major axis of the oval upper bottom surface is 26mm, and the diameter of the minor axis of the oval upper bottom surface is 19 mm; the diameter of the major axis of the elliptical lower bottom surface is 52mm, and the diameter of the minor axis of the elliptical lower bottom surface is 38 mm; the height between the upper bottom surface and the lower bottom surface is 60 mm; the corresponding operating handle 2 is an integrated component formed by medical plastic materials, and the length of the integrated component is 130 mm. The combination of the size parameters of the cervical support 1 and the operating handle 2 can be suitable for the requirements of the shape and the size of the vagina of most puerpera. A first drainage channel 1a is arranged on the cervical support 1 along the axial lead thereof, and a second drainage channel 2a is arranged on the operating handle 2 along the axial lead thereof. The elliptic upper bottom surface of the cervical support 1 is seamlessly and smoothly connected with the head end surface of the operating handle 2, and the first drainage channel 1a and the second drainage channel 2a are also seamlessly butted and communicated. The center of the elliptic lower bottom surface of the cervical support 1 is provided with an inward concave sucker groove 1b which can strengthen the effect of abutting and fitting with the cervix of the puerpera. The first transition arc surface 1c is arranged on the periphery of the elliptic lower bottom surface of the cervical support 1, so that the cervical support 1 is smoothly and softly pushed into the vagina of a puerpera, and the vagina is prevented from being stimulated and scratched. The periphery of the sucking disc groove 1b is provided with a second transition arc surface 1d, so that the lower bottom surface of the cervical support 1 is firmly adsorbed and fully attached with the cervix of the puerpera, and the lower uterus section is more stably and reliably supported. The center of the end face of the tail part of the operating handle 2 is provided with a drainage tube interface 2b which can be connected with an external drainage tube to collect vaginal bleeding into a drainage bag so as to observe the amount of the bleeding. Anti-slip flanges 2c are uniformly distributed on the outer surface of the operating handle 2, so that an operator can hold and operate the operating handle stably.

When the operation handle 2 is held by medical staff in the clinical preposed placenta operation of obstetrics and gynecology department, the cervical support 1 is slowly and stably pushed to the cervix from the vagina of the lying-in woman until the sucker groove 1b in the center of the lower bottom surface of the cervical support 1 is fully attached to the cervix, and the lower uterine segment of the screwdriver is lifted upwards. In the operation process, a small amount of bleeding of the puerpera can be led out through the first drainage channel 1a, the second drainage channel 2a and the drainage tube interface 2b in sequence and flow into the drainage bag through the drainage tube.

Example 2

As shown in fig. 4 to 5, the structure of the device for expanding and exposing the visual field of the front placenta operation described in this embodiment is basically the same as that of embodiment 1, and the difference is only that the cervical holder 1 is in a truncated cone structure, and the dimensional parameters of the cervical holder 1 in the truncated cone structure are as follows: the diameter of the round upper bottom surface is 20 mm; the diameter of the round lower bottom surface is 50 mm; the height between the upper bottom surface and the lower bottom surface is 60 mm; the length of the corresponding operating handle 2 is 130 mm. The method of operation and operation is also the same as in embodiment 1 and will not be described herein.

To sum up, with the help of the above-mentioned technical scheme of the utility model, only need the uterus hypomere of self-parturient internal vaginal upwards lift, do not hinder pelvic cavity operation operating space completely, can expose the uterus hypomere furthest, reduce operation field of vision blind area by a wide margin, make the operation person can furthest look at the doctor and palpate to can sew up the uterus hypomere fast, effectively reduce the operation in bleed, increase uterus retention rate, guarantee mother and infant safety, thereby improve lying-in woman quality of life. And simultaneously, the utility model has the advantages of simple structure and convenient operation, the effect is showing, but the wide application is sewed up in the operation of leading placenta of fierce type, leading placenta of central type, placenta implantation, is suitable for and popularizes and applies in all hospitals gynaecology and obstetrics.

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

Claims

1. The utility model provides a leading placenta operation field of vision expands exposes device for in the clinical operation spontaneous labor woman vagina is inside to lifting the hypomere of uterus, and does not hinder pelvic cavity operation operating space, its characterized in that: the cervical vertebra dilator comprises a cervical support (1) in a cone frustum or elliptical cone frustum structure and an operating handle (2) in a slender rod-shaped structure, wherein a first drainage channel (1a) is formed in the cervical support (1) along the axial lead of the cervical support, and a second drainage channel (2a) is formed in the operating handle (2) along the axial lead of the operating handle; the round or oval upper bottom surface of the cervical support (1) is seamlessly and smoothly connected with the head end surface of the operating handle (2), and the first drainage channel (1a) and the second drainage channel (2a) are also seamlessly butted and communicated; the circular or oval lower bottom surface center of cervical support (1) is provided with indent sucking disc groove (1b) that is fit for with lying-in woman's cervical butt laminating, the tail end face center of action handle (2) is provided with drainage tube interface (2 b).

2. The device of claim 1, wherein said device comprises: the size parameters of the cervical support (1) with the cone frustum structure are as follows: the diameter of the round upper bottom surface is 15-25 mm; the diameter of the round lower bottom surface is 40-50 mm; the height between the upper bottom surface and the lower bottom surface is 55-65 mm; the length of the corresponding operating handle (2) is 125-135 mm.

3. The device of claim 1, wherein said device comprises: the size parameters of the cervical support (1) of the elliptic cone frustum structure are as follows: the diameter of the long axis of the elliptic upper bottom surface is 20-30 mm, and the diameter of the short axis of the elliptic upper bottom surface is 15-25 mm; the diameter of the long axis of the elliptical lower bottom surface is 45-55 mm, and the diameter of the short axis of the elliptical lower bottom surface is 35-40 mm; the height between the upper bottom surface and the lower bottom surface is 55-65 mm; the length of the corresponding operating handle (2) is 125-135 mm.

4. The device of claim 1, 2 or 3, wherein said device comprises: the periphery of the circular or elliptical lower bottom surface of the cervical support (1) is provided with a first transition arc surface (1 c).

5. The device of claim 1, 2 or 3, wherein said device comprises: and a second transition arc surface (1d) is arranged on the periphery of the sucker groove (1 b).

6. The device of claim 1, 2 or 3, wherein said device comprises: and anti-skid flanges (2c) are uniformly distributed on the outer surface of the operating handle (2).

7. The device of claim 1, 2 or 3, wherein said device comprises: the cervical support (1) is an integrated component formed by medical silica gel materials or a combined component with a medical silica gel layer covered on the surface.

8. The device of claim 1, 2 or 3, wherein said device comprises: the operating handle (2) is an integrated component formed by medical plastic materials or a combined component with a medical plastic layer covered on the surface.