Novel cervical dilation device for midwifery
By designing the combination of the cannula, the expansion rod and the airbag layer, the safe and effective stimulation of the cervical dilation device is achieved, solving the problems of complex operation and insufficient stimulation in the prior art, and reducing the risk of cervical injury and infection.
Patent Information
- Application Number
- CN202421968108.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-14
AI Technical Summary
The existing cervical dilation device is complex in operation, which can easily lead to an increased risk of cervical laceration, bleeding and infection, and insufficient irritation during the airbag expansion or slippage of the airbag leads to pain in pregnant women.
A cervical expansion device including a cannula, core, a stretch rod and an airbag layer is designed to stimulate the cervix by stimulating the cervix through the triangle stretching and rotation of the stretching rod, combining the vulva and uterine positioning ball to prevent the airbag from slipping, achieving strong stimulation to the cervix.
It effectively promotes cervical dilation, reduces the risk of cervical injury and infection, ensures the safety and effectiveness of cervical stimulation, and avoids the pain caused by airbag slippage.
Smart Images

Figure CN223143947U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of obstetrics and assisted delivery, and in particular to a novel cervical dilation device for delivery. Background Art
[0002] In the late pregnancy, as the fetus matures and delivery approaches, the cervical canal will naturally dilate in preparation for delivery. However, in the actual clinical delivery process, due to the poor physical condition of the mother or the great mental stress, uterine contractions may be weak, which cannot effectively stimulate the dilation of the cervical opening. Uterine contractions may cause prolonged or stagnant labor, resulting in symptoms such as prolonged compression of the fetal head and umbilical cord, neonatal asphyxia, birth trauma, and intracranial hemorrhage. Therefore, during the delivery process of pregnant women, medical staff will use cervical dilation devices to stimulate the cervical canal of pregnant women, promote the synthesis and release of local endogenous prostaglandins in the cervix, and thus promote the softening and maturation of the cervix.
[0003] However, in the prior art, most cervical dilation devices are dilation forceps and dilation rods, which are troublesome to operate and have a greater irritation to the cervix of pregnant women. Improper operation may cause cervical laceration, bleeding, and increased risk of infection. Therefore, in the prior art, an air bag is used to expand and squeeze the cervical canal to assist in dilating the cervix of pregnant women. However, the expansion of the air bag compresses the cervical wall and has a weak irritation to the cervix. Once the pressure inside the air bag is increased and the stimulation is increased, the air bag is very likely to slip, causing pain to the pregnant woman.
[0004] Therefore, the utility model discloses a novel cervical dilation device for assisting childbirth, which solves the problems in the prior art that cervical dilation devices have high requirements for medical staff, careless operation may cause cervical laceration, bleeding, increased risk of infection, and when an airbag is used to dilate the cervix, the stimulation to the cervix is weak. Once the pressure inside the airbag is increased and the stimulation is increased, the airbag is very likely to slip, causing pain to the pregnant woman. Utility Model Content
[0005] In order to solve the drawbacks of the prior art, the utility model is realized through the following technical solutions: a novel cervical dilation device for midwifery, comprising: a sleeve;
[0006] The sleeve has a built-in core body, the rear end of the sleeve is fixedly connected to the core body, the front part of the sleeve is provided with an annular groove for rotationally connecting the buckle, and the front part of the sleeve is provided with an annular vulva positioning ball; the front end of the core body extends out of the front end of the sleeve, and the front part of the core body is provided with an annular uterus positioning ball; the front end of the sleeve and the front end of the core body are integrally formed with an annular airbag layer, and a freely rotatable sleeve 1 is provided in the interlayer between the sleeve and the core body; both sides of the buckle are hinged with support rods;
[0007] Both sides of the front part of the sleeve 1 are hinged with expansion rods; the expansion rod on the sleeve 1 is hinged with the expansion rod on the sleeve;
[0008] Furthermore, the sleeve is a hollow sleeve, a handle is arranged at the rear end to be fixedly connected to the rear end of the core body, an air pump is arranged on the handle to be connected to the annular airbag layer, an annular groove is arranged at the front end of the sleeve to be rotatably connected to the buckle, a vulva positioning ball is arranged on the sleeve at the rear of the buckle, and an airbag layer is integrally formed between the front end of the sleeve and the front part of the core body;
[0009] Furthermore, the core body is arranged in the middle of the sleeve, sleeve one is arranged in the interlayer between the core body and the sleeve, and a uterine positioning ball is arranged at the front end of the core body;
[0010] Furthermore, the sleeve one has expansion rods hinged on both side walls of the front part of the sleeve one, the sleeve and the expansion rods on the sleeve one are hinged to each other, the mutually hinged expansion rods are located inside the annular airbag layer, and the sleeve one is installed in the circular interlayer between the core body and the sleeve to seal the inside of the annular airbag layer, and the expansion rods are driven to expand into a triangle by pushing the sleeve one forward and backward to hold up the annular airbag layer, and the sleeve one is rotated to stimulate the entire cervix, thereby further strengthening the stimulation of the inner wall of the cervix.
[0011] The beneficial effects of the utility model are:
[0012] The utility model discloses a novel cervical dilation device for assisting childbirth, comprising: a sleeve, a sleeve 1, and a core body; the sleeve, the sleeve 1, and the core body are sequentially sleeved from outside to inside, an air pump is arranged at the rear end of the sleeve, and the rear end of the sleeve is fixedly connected with the rear end of the core body, a buckle is arranged at the front end of the sleeve to install a spreading rod, an annular vulva positioning ball is arranged on the sleeve, an annular airbag layer is arranged at the front of the sleeve to connect the front of the core body, and the annular airbag layer covers the spreading rod inside the line-lined airbag layer; a uterus positioning ball is arranged at the front of the core body, and hinged spreading rods are symmetrically arranged on the walls on both sides of the front of the sleeve 1, and the sleeve 1 and the spreading rods on the sleeve are hinged to each other;
[0013] The whole device is inserted into the cervix, and after the vulva positioning ball contacts the vulva, the inflation pump is started to inflate the annular airbag layer. The annular airbag layer expands and exerts pressure on the cervical wall to stimulate the cervix and promote cervical dilation; then the sleeve one is pulled back to make the sleeve and the expansion rod on the sleeve one expand into a triangle, and the top of the expansion rod presses against the annular airbag layer to further stimulate the cervix, and the sleeve one is rotated to drive the expansion rod to rotate, thereby strengthening the stimulation of the entire cervical wall; the device is held by the vulva positioning ball and the uterus positioning ball. The annular airbag layer is prevented from slipping off. The stimulation of the cervical wall is strengthened by pressing the annular airbag layer against the expansion rod. The annular airbag layer cushions the expansion rod to ensure the stimulation intensity and the safety of the cervix. The problem in the prior art that the cervical dilation device has high requirements for medical staff and careless operation may cause cervical laceration, bleeding, and increased risk of infection, and the stimulation of the cervix is weak when the airbag is used to dilate the cervix. Once the pressure inside the airbag is increased and the stimulation is increased, the airbag is very likely to slip off, causing pain to pregnant women, is solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.
[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of a new type of cervical dilation device for midwifery;
[0016] Figure 2 The present invention is a cross-sectional structural schematic diagram of the working state of a new cervical dilation device for assisting childbirth.
[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0018] 101-sleeve, 1011-vulva positioning ball, 102-core body, 1021-uterus positioning ball, 103-annular airbag layer, 2-sleeve one, 3-buckle, 4-opening rod, 5-inflating pump. DETAILED DESCRIPTION
[0019] In order to solve the problems existing in the prior art cervical dilation device, the utility model discloses a novel cervical dilation device for assisting childbirth, comprising: a sleeve 101;
[0020] The sleeve 101 has a built-in core 102, the rear end of the sleeve 101 is fixedly connected to the core 102, the front of the sleeve 101 is provided with an annular groove for rotationally connecting the buckle 3, and the front of the sleeve 101 is provided with an annular vulva positioning ball 1011; the front end of the core 102 extends out of the front end of the sleeve 101, and the front of the core 102 is provided with an annular uterine positioning ball 1021; the front end of the sleeve 101 and the front of the core 102 are integrally formed with an annular airbag layer 103, and a freely rotatable sleeve 2 is provided in the interlayer between the sleeve 101 and the core 102; both sides of the buckle 3 are hinged with the support rod 4;
[0021] Both sides of the front part of the sleeve 1 2 are hinged to the expansion rods 4; the expansion rods 4 on the sleeve 1 2 and the expansion rods 4 on the sleeve 101 are hinged to each other.
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] Example 1
[0024] like Figure 2 The figure shows a cross-sectional structural diagram of a novel cervical dilation device for assisting childbirth in the present invention in a working state. As shown in the figure, the present invention comprises: a sleeve 101;
[0025] The sleeve 101 has a built-in core 102, the rear end of the sleeve 101 is fixedly connected to the core 102, the front of the sleeve 101 is provided with an annular groove for rotationally connecting the buckle 3, and the front of the sleeve 101 is provided with an annular vulva positioning ball 1011; the front end of the core 102 extends out of the front end of the sleeve 101, and the front of the core 102 is provided with an annular uterine positioning ball 1021; the front end of the sleeve 101 and the front of the core 102 are integrally formed with an annular airbag layer 103, and a freely rotatable sleeve 2 is provided in the interlayer between the sleeve 101 and the core 102; both sides of the buckle 3 are hinged with the support rod 4;
[0026] Both sides of the front of the sleeve 1 2 are hinged with the expansion rods 4; the expansion rods 4 on the sleeve 1 2 and the expansion rods 4 on the sleeve 101 are hinged to each other;
[0027] In this embodiment, the sleeve 101 is a hollow sleeve 101, a handle is provided at the rear end to be fixedly connected to the rear end of the core body 102, an air pump 5 is provided on the handle to be connected to the annular airbag layer 103, an annular groove is provided at the front end of the sleeve 101 to be rotatably connected to the buckle 3, a vulva positioning ball 1011 is provided on the sleeve 101 at the rear of the buckle 3, and an airbag layer is integrally formed with the front end of the sleeve 101 and the front part of the core body 102;
[0028] In this embodiment, the core body 102 is arranged in the middle of the sleeve 101, a sleeve 2 is arranged in the sandwich between the core body 102 and the sleeve 101, and a uterine positioning ball 1021 is arranged at the front end of the core body 102;
[0029] In this embodiment, the sleeve 101 and the expansion rods 4 on the front side walls of the sleeve 102 are hinged, and the expansion rods 4 on the sleeve 101 and the sleeve 102 are hinged to each other. The mutually hinged expansion rods 4 are located inside the annular airbag layer 103, and the sleeve 102 is installed in the circular interlayer between the core 102 and the sleeve 101 to seal the inside of the annular airbag layer 103. The expansion rods 4 are pushed forward and backward to expand into a triangle, and the annular airbag layer 103 is supported. The sleeve 101 is rotated to stimulate the entire cervix, and the stimulation of the inner wall of the cervix is further strengthened.
[0030] In this embodiment, during actual operation, the entire device is inserted into the cervix. After the vulva positioning ball 1011 abuts against the vulva, the air pump 5 is started to inflate the annular airbag layer 103. The annular airbag layer 103 expands to apply pressure to the cervix wall to stimulate the cervix and promote cervical dilation. Then, the first sleeve 2 is pulled back, so that the spreading rods 4 on the sleeve 101 and the first sleeve 2 are spread out into a triangle, and the top of the spreading rod 4 abuts against the annular airbag layer 103 to further stimulate the cervix. The first sleeve 2 is rotated to drive the spreading rod 4 to rotate to intensively stimulate the entire cervix wall. The vulva positioning ball 1011 and the uterine positioning ball 1021 hold the device to prevent the annular airbag layer 103 from slipping. The annular airbag layer 103 is pressed by the spreading rod 4 to intensively stimulate the cervix wall, and the annular airbag layer 103 buffers the spreading rod 4, ensuring good stimulation intensity and guaranteeing cervical safety, solving the problems in the prior art that the cervical dilation device has high requirements for medical staff, and accidental operation may cause cervical laceration, bleeding, and increased risk of infection, and when using an airbag to dilate the cervix, the stimulation to the cervix is weak. Once the pressure inside the airbag is increased to enhance the stimulation, the airbag is extremely likely to slip, causing pain to the pregnant woman.
[0031] In summary, the present utility model discloses a novel cervical dilation device for midwifery, including: a sleeve 101, a first sleeve 2, and a core body 102; the sleeve 101, the first sleeve 2, and the core body 102 are sleeved in sequence from the outside to the inside. An air pump 5 is arranged at the rear end of the sleeve 101, and the rear end of the sleeve 101 is fixedly connected to the rear end of the core body 102. A sleeve buckle 3 is arranged at the front end of the sleeve 101 to install a spreading rod 4. An annular vulva positioning ball 1011 is arranged on the sleeve 101. An annular airbag layer 103 is arranged at the front part of the sleeve 101 and is connected to the front part of the core body 102, and the annular airbag layer 103 wraps the spreading rod 4 inside the airbag layer; a uterine positioning ball 1021 is arranged at the front part of the core body 102. Spreading rods 4 are symmetrically arranged on the wall bodies on both sides of the front part of the first sleeve 2 in a hinged manner, and the spreading rods 4 on the first sleeve 2 and the sleeve 101 are hinged to each other.
[0032] The whole device is inserted into the cervix, and after the vulva positioning ball 1011 contacts the vulva, the inflation pump 5 is started to inflate the annular airbag layer 103. The annular airbag layer 103 expands and exerts pressure on the cervical wall to stimulate the cervix and promote cervical dilation; then the sleeve 101 and the expansion rod 4 on the sleeve 101 are expanded to form a triangle, and the top of the expansion rod 4 is against the annular airbag layer 103 to further stimulate the cervix, and the sleeve 102 is rotated to drive the expansion rod 4 to rotate, thereby strengthening the stimulation of the entire cervical wall; through the vulva positioning ball 1011 and the uterine positioning ball 1011, the expansion rod 4 is rotated to further stimulate the cervix. The ball 1021 holds the device to prevent the annular airbag layer 103 from slipping off. The annular airbag layer 103 is pressed against the expansion rod 4 to strengthen the stimulation of the cervical wall. The annular airbag layer 103 cushions the expansion rod 4 to ensure the intensity of stimulation and ensure the safety of the cervix. This solves the problem in the prior art that the cervical dilation device has high requirements for medical staff, and careless operation may cause cervical laceration, bleeding, and increased risk of infection, and when the airbag is used to dilate the cervix, the stimulation to the cervix is relatively weak. Once the pressure inside the airbag is increased to increase the stimulation, the airbag is very likely to slip off, causing pain to pregnant women.
[0033] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described.
Claims
1. A novel cervical dilatation device for midwifery, characterized in that, Comprising: A cannula; A core body is built inside the cannula, the rear end of the cannula is fixedly connected to the core body, a circular groove is opened at the front part of the cannula and rotatably connected to a sleeve buckle, and an annular vulva positioning ball is arranged at the front part of the cannula; the front end of the core body extends out of the front end of the cannula, and an annular uterine positioning ball is arranged at the front part of the core body; an annular airbag layer is integrally formed at the front end of the cannula and the front part of the core body, and a freely rotatable cannula one is arranged in the sandwich layer between the cannula and the core body; both sides of the sleeve buckle are hinged with spreading rods; Both sides of the front part of the cannula one are hinged with spreading rods; the spreading rods on the cannula one and the spreading rods on the cannula are hinged to each other.
2. The novel cervical dilator for midwifery according to claim 1, wherein The cannula is a hollow cannula, a handle is arranged at the rear end and fixedly connected to the rear end of the core body, an air pump is arranged on the handle and connected to the annular airbag layer, a circular groove is opened at the front end of the cannula and rotatably connected to a sleeve buckle, an external genitalia positioning ball is arranged on the cannula at the rear part of the sleeve buckle, and an airbag layer is integrally formed at the front end of the cannula and the front part of the core body.
3. The novel cervical dilator for midwifery according to claim 1, characterized in that, The core body is arranged in the middle of the cannula, a cannula one is arranged in the sandwich layer between the core body and the cannula, and a uterine positioning ball is arranged at the front end of the core body.
4. A novel cervical dilator for midwifery according to claim 1, characterized in that, The cannula one, spreading rods are hinged on the two side walls of the front part of the cannula one, the spreading rods on the cannula and the cannula one are hinged to each other, the mutually hinged spreading rods are located inside the annular airbag layer, and the cannula one is installed in the circular sandwich layer between the core body and the cannula to seal the inside of the annular airbag layer. By pushing the cannula one back and forth, the spreading rods are driven to expand into a triangle and press against the annular airbag layer. Rotating the cannula one stimulates the entire cervix and further strengthens the stimulation of the inner wall of the cervix.