CN215348954U - Palace mouth measuring subassembly - Google Patents
Palace mouth measuring subassembly Download PDFInfo
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- CN215348954U CN215348954U CN202120117136.6U CN202120117136U CN215348954U CN 215348954 U CN215348954 U CN 215348954U CN 202120117136 U CN202120117136 U CN 202120117136U CN 215348954 U CN215348954 U CN 215348954U
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- 238000005259 measurement Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001605 fetal effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 210000003679 cervix uteri Anatomy 0.000 description 10
- 210000003754 fetus Anatomy 0.000 description 5
- 210000001215 vagina Anatomy 0.000 description 5
- 230000010339 dilation Effects 0.000 description 4
- 241000405070 Percophidae Species 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 210000004392 genitalia Anatomy 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 208000008918 voyeurism Diseases 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002559 palpation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
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Abstract
The utility model discloses a uterine opening measuring assembly which comprises a measuring rod seat, wherein a rod-shaped depth ruler is arranged on the measuring rod seat in a sliding mode, a light source adjusting rod is also arranged on the measuring rod seat in a sliding mode and is parallel to the depth ruler, a uterine opening measuring light source is arranged on the light source adjusting rod, light beams emitted by the uterine opening measuring light source are emitted along a fixed emergent angle, a first depth scale is arranged on the depth ruler, and a second depth scale is arranged on the light source adjusting rod. The utility model has the beneficial effects that: the cervical opening data measured by the vaginal speculum is more real and reliable, and discomfort of a pregnant woman during measurement is reduced.
Description
Technical Field
The utility model belongs to the field of medical instruments of obstetrics and gynecology department, and particularly relates to a uterine orifice measuring assembly matched with a vaginal speculum.
Background
In the process of the pregnant woman, along with the progress of the labor process, the cervical orifice is gradually opened, the head of the fetus gradually descends, and the doctor and the midwife judge the production process according to the gradual opening. For observing the size of the uterine orifice and the position of the fetal head, the most widely used method in clinic is rough judgment by a palpation method. The doctor or midwife puts fingers into the birth canal, can hold several fingers according to the uterine orifice, and uses several finger widths as the division standard of the size of the uterine orifice. The fetal head position is determined by taking the position of the ischial tuberosity as a determination reference and roughly determining the descending degree of the fetal head according to the length of fingers between the fetal head and the ischial tuberosity. However, the above method is not highly accurate because: firstly, the method for judging according to the finger width or the knuckle length is very rough; secondly, the uterine neck tissue mainly depends on personal experience of doctors or midwives, however, the elasticity of the uterine neck tissue is large, the size of the stretched uterine neck is often measured by finger stretching detection, and the size of the uterine neck in a natural state is difficult to measure, so that the size deviation of the uterine neck obtained by different people is large. These all affect the judgment of the birth process and the medical decision of the doctor, and are very inconvenient and the comfort of the pregnant woman is poor.
Aiming at the problem of inaccurate finger detection, Chinese patent No. CN201811635706.X discloses a cervical dilation size measuring instrument, wherein two dilation pieces controlled by a push rod form a measuring device, and the two dilation pieces extend into the inner wall of a cervical orifice for measurement. Chinese patent documents CN201822273853.9 and cn201811635706.x also use open devices to measure the opening size of the cervical orifice based on similar principles. Although the accuracy of the measured value is improved by the devices, the problem that the measured uterine opening size deviates from the natural opening size still exists due to the adoption of the open type measuring method similar to finger detection. Chinese patent document CN201910149623.8 discloses a device and a method for detecting the degree of cervical orifice dilation in labor process, which are based on image acquisition, identification and data processing methods, and are used for measuring images of the cervical orifice, fetal presenting images and anatomical site images of ischial spine, and then processing the images by using software to obtain the data of the size of the uterine orifice and the position of fetal head.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an oral uterine cavity measuring assembly.
The technical scheme is as follows:
a uterine orifice measuring component is characterized by comprising a measuring rod seat, wherein a rod-shaped depth ruler is arranged on the measuring rod seat in a sliding manner;
a light source adjusting rod is also arranged on the measuring rod seat in a sliding manner, the light source adjusting rod is parallel to the depth ruler, a palace mouth measuring light source is arranged on the light source adjusting rod, and light beams emitted by the palace mouth measuring light source are emitted along a fixed emergent angle;
the depth scale is provided with a first depth scale, and the light source adjusting rod is provided with a second depth scale.
Design more than adopting, combine to use this measuring subassembly with current external genitals of peeping, the blade hole block installation of measuring rod seat and external genitals of peeping, measure fetal head position height through the depth gauge, on this basis, the light spot that the position through adjusting palace mouth measuring light source made its light beam of sending throw on the cervix uteri just covers the cervix uteri mouth, can calculate cervix uteri opening size in view of the above, because adopt non-mode of strutting to measure the natural size of cervix uteri mouth, the cervix uteri opening data of surveying is more true and reliable, and reduce and measure uncomfortably.
As a preferred technical scheme, the measuring rod seat comprises two supports, namely a first support and a second support, wherein the first support and the second support are arranged along the length direction of the depth scale and are fixedly connected through a connecting plate;
each support is provided with a support ring sleeve, the two support ring sleeves are arranged on the same center line, and the same depth ruler is slidably arranged in the two support ring sleeves in a penetrating manner;
each support is further provided with a supporting slide block, and the two supporting slide blocks are provided with the same light source adjusting rod in a sliding mode.
Design more than adopting, two supports ensure that depth of penetration chi and light source regulating rod slide steadily, wherein light source regulating rod and supporting slide block cooperation, and supporting slide block occupation space is little for leave observation space between measuring rod seat and the oval hole of peeping the external genitals.
As a preferred technical scheme, the support comprises an arc-shaped plate, the support ring sleeve is arranged in the arc-shaped plate, and at least two support columns which are arranged in the radial direction are fixedly connected between the support ring sleeve and the inner wall of the arc-shaped plate;
the arc plates of the two supports are fixedly connected through the connecting plate;
each support ring sleeve is further fixedly provided with the support sliding block, the support sliding block is positioned on the outer wall of the support ring sleeve back to the arc-shaped plate, the light source adjusting rod is provided with a sliding groove corresponding to the support sliding block, and the support sliding block is inserted into the sliding groove.
By adopting the design, the arc-shaped plate is matched with the groove-shaped inner cavity of the blade of the vaginal speculum, so that the measuring assembly is convenient to install on the vaginal speculum.
As a preferred technical scheme, one end of the first support, which is far away from the uterine opening measuring light source, is provided with a limit stop.
By adopting the design, the measuring rod seat is conveniently positioned at the tail end of the fixed blade.
As the preferred technical scheme, the front end of the depth gauge is fixedly provided with an elastic abutting gasket.
By adopting the design, the damage or discomfort to the fetus or the pregnant woman is prevented.
As a preferred technical scheme, the light emergence angle of the uterine opening measuring light source is 40-90 degrees.
By adopting the design, when the uterine orifice measuring light source is at a proper distance from the uterine orifice, the projected light spot can cover the cervical orifice.
Preferably, the light exit angle of the uterine cavity measuring light source is 60 °.
By adopting the design, the measuring distance between the uterine orifice measuring light source and the uterine orifice is further optimized.
As a preferred technical scheme, the diameter of the exit point of the light beam emitted by the uterine orifice measuring light source is 4-6 mm.
By adopting the design, the light beam propagation diffusion effect is not obvious.
As a preferred technical scheme, the uterine opening measuring light source is an LED light source with a convex lens.
By adopting the design, the device is a mature device, so that the device is convenient to use and replace.
According to a preferable technical scheme, the uterine opening measuring light source comprises an LED lamp, a conical light guide cylinder is arranged outside the LED lamp, the LED is located in the small-diameter end of the light guide cylinder, and the large-diameter end of the light guide cylinder faces away from the first support.
By adopting the design, the light guide cylinder restrains the emergent angle of the light beam, so that the emergent angle is kept fixed.
Compared with the prior art, the utility model has the beneficial effects that: the present vaginal speculum of measuring subassembly adaptation, the two combines the use, the blade hole block installation of measuring rod seat and vaginal speculum, measure fetal head position height through the depth ruler, the position of adjusting the palace mouth through removing the light source regulating rod and adjusting the position of palace mouth measuring light source makes the facula of its delivery just cover the cervix mouth, calculate cervix opening size according to this, because adopt non-mode measurement cervix mouth natural size that struts, the cervix opening data of surveying is more true reliable, and reduce the uncomfortable sense of pregnant woman when measuring.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a measuring stick base;
FIG. 3 is a schematic structural view of the uterine cavity measuring assembly fitted with a vaginal speculum;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a schematic view of a measuring situation in which two blades of the vaginal speculum are open;
fig. 6 is a diagram of the measuring and calculating principle of the uterine orifice.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 and 2, the uterine orifice measuring assembly comprises a measuring rod base, and a rod-shaped depth ruler 31 is slidably arranged on the measuring rod base. The measuring rod seat is also provided with a light source adjusting rod 21 in a sliding manner, the light source adjusting rod 21 is arranged in parallel with the depth ruler 31, the light source adjusting rod 21 is detachably provided with a uterine opening measuring light source 22, light beams emitted by the uterine opening measuring light source 22 are emitted along a fixed emergent angle, and the emergent angle is an acute angle. The depth scale 31 is provided with a first depth scale, and the light source adjusting rod 21 is provided with a second depth scale.
Specifically, the measuring rod base includes two supports 10, which are a first support and a second support, respectively, and the first support and the second support are arranged along the length direction of the depth scale 31. The support 10 comprises an arc-shaped plate 11, and the arc-shaped plate 11 is matched with the blade of the vaginoscope. The supporting ring sleeve 14 is arranged in the arc plate 11, and at least two supporting columns 15 which are arranged in the radial direction are fixedly connected between the supporting ring sleeve 14 and the inner wall of the arc plate 11. The arc plates 11 of the two supports 10 are fixedly connected through a connecting plate 12.
Each support 10 is provided with a support ring sleeve 14, the two support ring sleeves 14 are arranged on the same center line, and the same depth gauge 31 is slidably arranged in the two support ring sleeves 14 in a penetrating manner.
Each supporting ring sleeve 14 is further fixedly provided with a supporting slide block 16, the supporting slide block 16 is positioned on the outer wall of the supporting ring sleeve 14, which faces away from the arc-shaped plate 11, the light source adjusting rod 21 is provided with a sliding groove corresponding to the supporting slide block 16, and the supporting slide block 16 is inserted into the sliding groove. The same light source adjusting rod 21 is slidably arranged on the two supporting sliders 16.
The front end of the depth ruler 31 is fixedly provided with an elastic abutting gasket 32 which can be made of medical silica gel.
And a limit stop 13 is arranged at one end of the first support far away from the uterine opening measuring light source 22.
The light emergence angle of the uterine opening measuring light source 22 is 40-90 degrees, and preferably 60 degrees. The diameter of the exit point of the light beam emitted by the uterine opening measuring light source 22 is 4-6 mm.
In one embodiment, the ostium measurement light source 22 is a LED light source with a convex lens. The convex lens has a function of converging light emitted by the LED lamp and enables the light beam to be emitted at a fixed emergent angle. The LED lamp with the lens is an existing mature product.
In another embodiment, the light source 22 comprises an LED lamp with a tapered light pipe disposed outside the LED lamp, the LED being located within the small diameter end of the light pipe, the large diameter end of the light pipe facing away from the first support. The conical light guide cylinder plays a role in restraining light rays emitted by the LED lamp, so that the light rays are emitted at a fixed emergent angle.
The uterine orifice measuring component is matched with the existing vaginal speculum to form a measuring device.
As shown in fig. 3 to 5, a measuring device comprises a vaginal speculum assembly, which comprises two mutually matched blades, namely a fixed blade 41 and a rotating blade 42. The cross sections of the fixed blade 41 and the rotating blade 42 are arc-shaped groove-shaped, and the notches of the fixed blade and the rotating blade are opposite. The tail ends of the two blades are hinged to form an oval hole, the tail ends of the two blades are connected with handles 43 respectively, and the front ends of the two blades are provided with duckbills respectively.
The uterus mouth measuring assembly is detachably arranged in the oval hole, wherein the measuring rod seat is installed in the inner hole of the fixed blade 41, the arc plate 11 is matched with the inner wall of the fixed blade 41, and an observation hole is reserved between the measuring rod seat and the inner wall of the oval hole. The depth ruler 31 is disposed along the extending direction of the fixed blade 41, and the depth ruler 31 is biased toward the fixed blade 41, wherein the first seat is located at the rear end of the fixed blade 41 to prevent the measuring rod seat from sliding toward the front end of the fixed blade 41. The central line of the light beam emitted by the uterine orifice measuring light source 22 is superposed with the central line of the oval hole. The depth scale 31 and the light beam emitted by the uterine cavity measuring light source 22 pass between the duckbills of the two blades.
As shown in fig. 4, in a preferred embodiment, the end of the duckbill has an abdicating notch corresponding to the depth ruler 31 and the uterine canal measuring light source 22, so as to facilitate the passing of the depth ruler 31 and the passing of the light emitted from the uterine canal measuring light source 22.
The use mode of the device is as follows: the measuring assembly is arranged on the vaginal speculum assembly, the abutting gasket 32 at the front end of the depth ruler 31 is located between the two blades, the blades of the vaginal speculum assembly extend into the vagina, the tail end of the fixed blade 41 is located at the vaginal opening, the first support corresponds to the handle 43 of the fixed blade 41, namely the vaginal opening, and serves as a measuring datum point, and the fetal head position is the distance between the fetal presenting fluid and the vaginal opening.
The two blades are opened to open the vagina, the depth ruler 31 is pushed to enable the abutting gasket 32 to be slightly abutted against the fetus to expose the fetus head, and the distance d between the fetus head and the vaginal opening is determined according to the reading of the depth ruler 31 corresponding to the first support1To determine the position of the fetal head, when the fetal head is in the vagina, d1Is negative.
The light source adjusting rod 21 is moved to adjust the position of the uterine opening measuring light source 22, so that a projection light spot formed by the light beam emitted by the uterine opening measuring light source 22 at the uterine opening basically covers the uterine neck opening, the reading of the second depth scale corresponding to the first support at the moment is read, and the distance d between the light emitting opening of the uterine opening measuring light source 22 and the vaginal opening is determined according to the reading2Wherein the light exit opening of the uterine orifice measuring light source 22 is negative when located inside the vagina and positive when located outside the vagina. For convenient use, the position of the uterine orifice measuring light source 22 on the light source adjusting rod 21 can be adjusted, after the position of the uterine orifice measuring light source 22 on the light source adjusting rod 21 is changed, d is determined according to two readings at the light source adjusting rod 21 corresponding to the uterine orifice measuring light source 22 and the first support respectively2The numerical value of (c).
Because the propagation distance is short, the light diffusion phenomenon is not obvious, and the diffusion phenomenon in the light propagation process is not considered. Referring to fig. 6, it is noted that the exit angle of light from the light source 22 is θ, and the diameter of the exit point of the light beam from the light source 22 is D1Opening diameter of cervix D2Based on the straight-line propagation property of light and the Pythagorean theorem, D is calculated according to the following equations (1) and (2)2：
D2＝D1+2×Δd×tan(θ/2) (1)
Δd＝|d1-d2| (2)。
In actual use, due to D1Smaller, in calculating D2This term may be ignored. For further convenience of use, it is also possible to form a uterine orifice measurement look-up table in advance based on the calculation result, the measurement look-up table being made into a look-up plate, each measuring device being provided with the look-up plate so as to be based on the measured d1And d2Convenient for doctor or midwiferyAnd directly queries the approximate range of cervical opening sizes. At theta 60 DEG and D1For example, 4mm, D2And d1And d2The table of the comparison of (A) and (B) is shown in Table 1.
TABLE 1 cervical orifice query table (Unit: cm)
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. An oral uterine cavity measuring assembly, characterized in that: comprises a measuring rod seat, and a rod-shaped depth scale (31) is arranged on the measuring rod seat in a sliding way;
a light source adjusting rod (21) is also arranged on the measuring rod seat in a sliding manner, the light source adjusting rod (21) is arranged in parallel to the depth ruler (31), a uterine opening measuring light source (22) is arranged on the light source adjusting rod (21), and light beams emitted by the uterine opening measuring light source (22) are emitted along a fixed emergent angle;
the depth scale (31) is provided with a first depth scale, and the light source adjusting rod (21) is provided with a second depth scale.
2. An oral measurement assembly according to claim 1, wherein: the measuring rod seat comprises two supports (10) which are respectively a first support and a second support, and the first support and the second support are arranged along the length direction of the depth scale (31) and are fixedly connected through a connecting plate (12);
each support (10) is provided with a support ring sleeve (14), the two support ring sleeves (14) are arranged on the same center line, and the same depth ruler (31) is arranged in the two support ring sleeves (14) in a sliding and penetrating mode;
each support (10) is further provided with a supporting slide block (16), and the two supporting slide blocks (16) are provided with the same light source adjusting rod (21) in a sliding manner.
3. An oral measurement assembly according to claim 2, wherein: the support (10) comprises an arc-shaped plate (11), the support ring sleeve (14) is arranged in the arc-shaped plate (11), and at least two support columns (15) which are arranged in the radial direction are fixedly connected between the support ring sleeve (14) and the inner wall of the arc-shaped plate (11);
the arc-shaped plates (11) of the two supports (10) are fixedly connected through the connecting plate (12);
each supporting ring sleeve (14) is further fixedly provided with a supporting sliding block (16), the supporting sliding blocks (16) are located on the outer wall, back to the arc-shaped plate (11), of each supporting ring sleeve (14), sliding grooves are formed in the light source adjusting rods (21) corresponding to the supporting sliding blocks (16), and the supporting sliding blocks (16) are inserted in the sliding grooves.
4. An oral measurement assembly according to claim 2, wherein: and a limit stop (13) is arranged at one end of the first support, which is far away from the uterine opening measuring light source (22).
5. An oral measurement assembly according to claim 1, wherein: the front end of the depth gauge (31) is fixedly provided with an elastic abutting gasket (32).
6. An oral measurement assembly according to claim 1, wherein: the light emergence angle of the uterine opening measuring light source (22) is 40-90 degrees.
7. An oral measurement assembly according to claim 6, wherein: the light exit angle of the uterine opening measuring light source (22) is 60 degrees.
8. An oral measurement assembly according to claim 1 or 6, wherein: the diameter of the exit point of the light beam emitted by the uterine opening measuring light source (22) is 4-6 mm.
9. An oral measurement assembly according to claim 1 or 6, wherein: the uterine opening measuring light source (22) is an LED light source with a convex lens.
10. An oral measurement assembly according to claim 1 or 6, wherein: the uterine opening measuring light source (22) comprises an LED lamp, a conical light guide cylinder is arranged outside the LED lamp, the LED is positioned in the small-diameter end of the light guide cylinder, and the large-diameter end of the light guide cylinder faces away from the first support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120117136.6U CN215348954U (en) | 2021-01-15 | 2021-01-15 | Palace mouth measuring subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120117136.6U CN215348954U (en) | 2021-01-15 | 2021-01-15 | Palace mouth measuring subassembly |
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| Publication Number | Publication Date |
|---|---|
| CN215348954U true CN215348954U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120117136.6U Expired - Fee Related CN215348954U (en) | 2021-01-15 | 2021-01-15 | Palace mouth measuring subassembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050995A1 (en) * | 2022-09-09 | 2024-03-14 | 上海市浦东新区人民医院 | Device for monitoring opening degree of uterine orifice of puerpera, and control method therefor |
-
2021
- 2021-01-15 CN CN202120117136.6U patent/CN215348954U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050995A1 (en) * | 2022-09-09 | 2024-03-14 | 上海市浦东新区人民医院 | Device for monitoring opening degree of uterine orifice of puerpera, and control method therefor |
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Granted publication date: 20211231 |