CN214912471U - Cervical dilation bar - Google Patents
Cervical dilation bar Download PDFInfo
- Publication number
- CN214912471U CN214912471U CN202120839163.4U CN202120839163U CN214912471U CN 214912471 U CN214912471 U CN 214912471U CN 202120839163 U CN202120839163 U CN 202120839163U CN 214912471 U CN214912471 U CN 214912471U
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- CN
- China
- Prior art keywords
- water injection
- drainage
- expansion
- cavity
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000010339 dilation Effects 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000007924 injection Substances 0.000 claims abstract description 65
- 238000002347 injection Methods 0.000 claims abstract description 65
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000741 silica gel Substances 0.000 claims abstract description 9
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 9
- 230000000916 dilatatory effect Effects 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 6
- 210000005077 saccule Anatomy 0.000 claims description 4
- 210000003679 cervix uteri Anatomy 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 206010056738 Uterine cervical laceration Diseases 0.000 abstract description 3
- 208000015181 infectious disease Diseases 0.000 abstract description 3
- 238000000520 microinjection Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 206010000210 abortion Diseases 0.000 description 2
- 231100000176 abortion Toxicity 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 208000036818 High risk pregnancy Diseases 0.000 description 1
- 206010021718 Induced labour Diseases 0.000 description 1
- 208000008589 Obesity Diseases 0.000 description 1
- 206010061401 Uterine injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000001848 dysentery Diseases 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000020824 obesity Nutrition 0.000 description 1
- 230000009984 peri-natal effect Effects 0.000 description 1
- 210000002640 perineum Anatomy 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model relates to a cervix dilatation rod, which comprises a main catheter; a water injection cavity is arranged in the main catheter; a water injection joint is arranged at the rear end of the water injection cavity; the water injection joint is communicated with the water injection cavity; an expansion balloon is arranged at the rear part of the front end opening of the water injection cavity; the utility model discloses simple structure, convenient to use can be with in the normal saline input expansion sacculus through water injection joint and water injection chamber, the material of main duct and expansion sacculus is silica gel, utilizes the water inflation principle of material itself to make the expansion sacculus expansion, and is safe, and the effect is showing, effectively alleviates patient's pain, avoids traditional metal expansion stick to need progressively add the step of large size and to put into and extract the cervical laceration that brings and complication such as infection many times repeatedly for expanding the cervix.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to cervical dilator stick.
Background
The cervical dilating rod is a medical operation instrument commonly used in obstetrics and gynecology department. On the one hand, induced abortion surgery or induced labor surgery performed to reduce certain complications caused by high-risk pregnancies and to reduce perinatal mortality requires effective softening and expansion of the connective tissue of the cervix; on the other hand, as a minimally invasive diagnosis and treatment technique for gynecology, dilating the cervix is very important for smoothly performing hysteroscopy operation. The cervical dilator rod used traditionally in clinic is made of metal or hard plastic and has different diameters, and the cervix is dilated in a physical hard dilation mode, which often causes long operation time, causes great pain to patients, and easily causes adverse reactions such as uterine injury, embryo injury, bleeding and the like.
At present, in order to realize the slow dilation of the cervix, relieve the pain of patients and reduce the operation difficulty and the occurrence of complications, people utilize the water absorption swelling characteristic of medical polymer materials with good biocompatibility to prepare a slow swelling type disposable cervix dilation rod with self-swelling performance. However, the existing expansion rods made of self-expanding materials and manufacturing processes have the problems of low water absorption expansion rate, small diameter after expansion, deformation and falling off under small pressure, low strength and the like, and the expansion rods bring a tearing feeling of the body to patients due to the sudden expansion or local asymmetry, cause discomfort to the patients and bring inconvenience to the use.
In view of the above technical problems, improvements are needed.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the defect among the above-mentioned prior art, provide a simple structure, convenient and practical, can effectively solve the cervical dilating stick of the uncomfortable problem that the patient brought of expansion rate and the uncertainty and the expansion inhomogeneity of expansion volume size that cervical dilating stick exists.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a cervical dilating rod comprising a main catheter; a water injection cavity is arranged in the main catheter; a water injection joint is arranged at the rear end of the water injection cavity; the water injection joint is communicated with the water injection cavity; an expansion balloon is arranged at the rear part of the front end opening of the water injection cavity; the dilatation balloon and the main catheter are both made of fully transparent materials.
As a preferred mode of the utility model, a drainage cavity is arranged in the main conduit; the rear end of the drainage cavity is provided with a drainage joint which is communicated with the drainage cavity; the drainage cavity is communicated with the expansion balloon, a drainage pipe is inserted in the drainage joint, one end of the drainage pipe is communicated with the drainage cavity, the other end of the drainage pipe is connected with a drainage one-way valve, and the drainage one-way valve is externally connected with a drainage collection bag.
As a preferred mode of the present invention, the surface of the inflatable balloon is provided with a plurality of opening strips for contracting or expanding the inflatable balloon.
As an optimized mode of the utility model, a plurality of opening strip equidistance are laid on the expansion sacculus surface, and the width of a plurality of opening strips is unanimous.
As the utility model discloses a preferred mode, the water injection connects the interior interlude and has the water injection pipe, and the one end and the water injection chamber of water injection pipe are linked together, and the one-way valve of water injection is connected to the other end.
As an optimized mode of the utility model, the handle is sleeved outside the rear end of the main catheter, the sealing cap is arranged on the handle, and the water injection joint and the water drainage joint are positioned on the handle.
As an optimized mode of the utility model, a silica gel sleeve is sleeved between the main catheter and the handle.
As a preferred mode of the present invention, a guide needle is disposed in the lumen of the water injection cavity, and the guide needle is connected to the drain pipe.
As an optimized mode of the utility model, the front end of the main duct adopts an arc-shaped structure.
As an optimal mode of the utility model, the main catheter and the expansion balloon are made of silica gel.
As an optimized mode of the utility model, the water injection joint has outer the connecing of luer protective cap.
The utility model has the advantages that:
1. the utility model discloses simple structure, convenient to use can be with in the normal saline input expansion sacculus through water injection joint and water injection chamber, the material of main duct and expansion sacculus is silica gel, utilizes the water absorption inflation principle of material itself can make the expansion sacculus expand, and is safe, and the effect is showing, effectively alleviates patient's pain, avoids traditional metal expansion stick to need step by step with large size and to expand the cervix and put into and extract many times and bring cervical laceration and infection and other complications;
2. the utility model can open the drainage one-way valve after the expansion rod is used, and the physiological saline in the expansion saccule is discharged into the water collecting bag to shrink the expansion saccule, so that the main catheter can be conveniently pulled out from the cervical orifice, and the use is convenient and safe;
3. the utility model can control the expansion rate and the expansion volume through the micro-injection pump, the injector or the handle tube, effectively avoid the phenomenon of large expansion or small expansion, avoid the pain of the patient caused by the sudden expansion and the non-uniformity, and avoid the uncomfortable problem when the patient uses the device;
4. the utility model discloses a prop open the strip and can provide the support in order to ensure that main duct is whole can keep the line type and indeformable, and even internal contraction, it provides required rigidity for this expansion stick simultaneously, makes things convenient for the leading-in cervix of expansion stick.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
fig. 3 is a cross-sectional view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a main conduit according to an embodiment of the present invention;
reference numbers in the figures: the device comprises a main catheter 1, a water injection cavity 2, a water drainage cavity 3, an expansion balloon 4, an arc-shaped cone part 4-1, a spreading strip 5, a handle 6, a sealing cap 7, a water injection tube 8, a water injection one-way valve 9, an injector 10, a silica gel sleeve 11, a Ruhr protective cap 14, a guide needle 15, a water injection joint 20, a water drainage joint 30, a water drainage pipe 31 and a water drainage one-way valve 32.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Example (b): as shown in fig. 1 to 4, the cervical dilating rod comprises a main catheter 1; a water injection cavity 2 is arranged in the main catheter 1; the rear end of the water injection cavity 2 is provided with a water injection joint 20; the water injection joint 20 is communicated with the water injection cavity 2; an expansion balloon 4 is arranged at the rear part of the front end opening of the water injection cavity 2; the utility model discloses simple structure, convenient to use can be with in the normal saline input expansion sacculus 4 through water injection joint 2 and water injection chamber 2, main duct 1 and the material of expansion sacculus 4 are silica gel, utilize the water inflation principle of absorbing water of material itself to make the expansion sacculus expansion, and is safe, and the effect is showing, effectively alleviates patient's pain, avoids traditional metal expansion stick to need progressively add the step of large size and put into and extract the complication such as cervical laceration and infection that bring many times repeatedly for the expansion cervix.
In the existing induced abortion operation, medical staff judge the position of the expansion balloon 4 by finger touch positioning only through intuition and experience of a person in charge, but the judgment method causes certain errors due to different obesity degrees of patients. And in this embodiment, expansion sacculus 4 and main catheter 1 are all made of transparent material, can realize the accurate positioning to expansion sacculus 4, avoid among the prior art through the protruding or through pointing to press the situation such as positional deviation that the perineum touch location judged expansion sacculus 4 to appear of touch location, can improve the location precision, ensure the operation effect.
Wherein, a water injection pipe 8 is inserted in the water injection joint 20, one end of the water injection pipe 8 is communicated with the water injection cavity 2, and the other end is connected with a water injection one-way valve 9; the outside of the water injection one-way valve 9 is connected with a micro-injection pump or an injector 10; the utility model discloses can effectively avoid taking place the great or less phenomenon of expansion through the size of micro-injection pump, syringe or handle pipe control expansion rate and expansion volume, avoid expanding proruption and the misery that the inhomogeneity brought for the patient, uncomfortable problem can not appear when the patient uses.
The front end of the main catheter 1 of the embodiment adopts an arc-shaped structure, and the volume and the diameter of the expansion balloon 4 are reduced after contraction, so that the main catheter is easy to insert; when in use, only a certain amount of air is needed to be injected into the expansion balloon 4 to recover the size of the expansion balloon so as to realize accurate expansion; the micro-injection pump or the micro-injection pump can realize continuous, uniform, micro and quantitative gas supply, so that the expansion time can be set randomly, and friendly expansion is realized; the method can also realize the expansion of multiple patients by using the micro pump, realize the standardized operation in the process and improve the efficiency.
A drainage cavity 3 is arranged in the main guide pipe 1; the rear end of the drainage cavity 3 is provided with a drainage joint 30, and the drainage joint 30 is communicated with the drainage cavity 3; the drainage cavity 3 is communicated with the expansion balloon 4, a drainage pipe 31 is inserted in the drainage joint 30, one end of the drainage pipe 31 is communicated with the drainage cavity 3, the other end of the drainage pipe 31 is connected with a drainage one-way valve 32, and the outside of the drainage one-way valve 32 is connected with a drainage collection bag; the utility model discloses a drainage chamber and drainage connect can use the completion back at the expansion stick, open the drainage check valve, and the normal saline in the expansion sacculus discharges into in the collecting bag, makes the expansion sacculus shrink, is convenient for extract main catheter from the cervical orifice, convenient safety.
In this embodiment, the main catheter 1 and the dilatation balloon 4 can be made of high-elasticity rubber material, and the surfaces of the main catheter 1 and the dilatation balloon 4 can be treated by fluorine paint or silicon paint with low friction coefficient, for example, a smooth coating containing polytetrafluoroethylene or organic silicon paint can be coated to realize comfort during entering and reduce discomfort caused by friction resistance of introduced cervix.
The front end of the expansion balloon 4 in this embodiment is an arc-shaped taper part 4-1, and the arc-shaped taper part 4-1 can provide support to ensure that the whole expansion balloon 4 can keep a linear shape without deformation and uniformly contract inwards, and meanwhile, the expansion balloon provides required rigidity for the expansion rod to facilitate the introduction of the expansion rod into the cervix.
The surface of the expansion sacculus 4 is provided with a plurality of opening strips 5 for contracting or expanding the expansion sacculus 4; the plurality of opening strips 5 are equidistantly distributed on the surface of the expansion saccule 4, and the widths of the plurality of opening strips 5 are consistent; the utility model discloses a prop open strip 5 can provide the support in order to ensure that main duct is whole can keep the line type and indeformable, and even internal contraction, and it provides required rigidity for this expansion stick simultaneously, makes things convenient for the leading-in cervix of expansion stick.
The handle 6 is sleeved on the outer side of the rear end of the main conduit 1, the sealing cap 7 is arranged on the handle 6, and the water injection joint 20 and the water drainage joint 30 are positioned on the handle 6. The inner wall of the water injection joint 20 is provided with threads and can be connected with other medical equipment such as a micro-injection pump or an injector 10 and the like in a screwing mode, and the luer protective cap 14 is sleeved outside the water injection joint 20 and can play a role in isolating the main catheter 1 from the outside.
A silica gel sleeve 11 is sleeved between the main catheter 1 and the handle 6, a guide needle 15 is arranged in the lumen of the water injection cavity 2, and the guide needle 15 is connected with the drainage pipe 31. The connection sealing performance of the handle 6, the water injection joint 20 and the water discharge joint 30 is improved, and the use safety of the cervical dilating rod is further ensured.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the main catheter 1, the water injection cavity 2, the drainage cavity 3, the expansion balloon 4, the arc-shaped cone 4-1, the opening strip 5, the handle 6, the sealing cap 7, the water injection tube 8, the water injection one-way valve 9, the syringe 10, the silicone sleeve 11, the luer protective cap 14, the guide needle 15, the water injection joint 20, the drainage joint 30, the drainage pipe 31, the drainage one-way valve 32 and other terms, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. A cervical dilating rod; comprising a main duct (1); a water injection cavity (2) is arranged in the main conduit (1); a water injection joint (20) is arranged at the rear end of the water injection cavity (2); the water injection joint (20) is communicated with the water injection cavity (2); the rear part of the front end opening of the water injection cavity (2) is provided with an expansion saccule (4).
2. The cervical dilating rod of claim 1, wherein: a drainage cavity (3) is arranged in the main duct (1); a drainage joint (30) is arranged at the rear end of the drainage cavity (3), and the drainage joint (30) is communicated with the drainage cavity (3); the drainage cavity (3) is communicated with the expansion balloon (4), a drainage pipe (31) is inserted in the drainage joint (30), one end of the drainage pipe (31) is communicated with the drainage cavity (3), the other end of the drainage pipe is connected with a drainage one-way valve (32), and the drainage one-way valve (32) is externally connected with a drainage collection bag.
3. The cervical dilating rod of claim 1 or 2, wherein: the surface of the expansion sacculus (4) is provided with a plurality of opening strips (5) for contracting or expanding the expansion sacculus (4).
4. The cervical dilating rod of claim 3, wherein: the multiple opening strips (5) are equidistantly distributed on the surface of the expansion balloon (4), and the widths of the multiple opening strips (5) are consistent.
5. The cervical dilating rod of claim 1, wherein: a water injection pipe (8) is inserted in the water injection joint (20), one end of the water injection pipe (8) is communicated with the water injection cavity (2), and the other end of the water injection pipe is connected with a water injection one-way valve (9).
6. The cervical dilating rod of claim 1 or 2, wherein: the handle (6) is sleeved on the outer side of the rear end of the main guide pipe (1), the sealing cap (7) is arranged on the handle (6), and the water injection joint (20) and the water drainage joint (30) are located on the handle (6).
7. The cervical dilating rod of claim 6, wherein: a silica gel sleeve (11) is sleeved between the main catheter (1) and the handle (6).
8. The cervical dilating rod of claim 5, wherein: a guide needle (15) is arranged in the cavity of the water injection cavity (2), and the guide needle (15) is connected with a drain pipe (31).
9. The cervical dilating rod of claim 7, wherein: the front end of the main duct (1) adopts an arc-shaped structure.
10. The cervical dilating rod of claim 9, wherein: the main catheter (1) and the expansion balloon (4) are made of silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120839163.4U CN214912471U (en) | 2021-04-22 | 2021-04-22 | Cervical dilation bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120839163.4U CN214912471U (en) | 2021-04-22 | 2021-04-22 | Cervical dilation bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214912471U true CN214912471U (en) | 2021-11-30 |
Family
ID=79066141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120839163.4U Expired - Fee Related CN214912471U (en) | 2021-04-22 | 2021-04-22 | Cervical dilation bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214912471U (en) |
-
2021
- 2021-04-22 CN CN202120839163.4U patent/CN214912471U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |