CN211049553U

CN211049553U - Friendly cervical dilating rod

Info

Publication number: CN211049553U
Application number: CN201921162711.3U
Authority: CN
Inventors: 程逸豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-07-21
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a friendly cervical dilator, which comprises an elastic body dilating tube body with a hollow tubular structure, wherein the front end of the elastic body dilating tube body is provided with a leading-in cone, and the rear end of the elastic body dilating tube body is provided with a sealing connecting head for air exhaust or inflation; the utility model discloses can be through the size in microinjection pump, syringe or handle pipe control expanding speed and expansion space, effectively avoid taking place the great or less phenomenon of expansion, uncomfortable problem can not appear when the patient uses.

Description

Friendly cervical dilating rod

Technical Field

The utility model relates to the technical field of cervical dilatation, in particular to a friendly cervical dilating stick.

Background

The existing methods applied to cervical dilatation generally comprise a swelling type method, a mechanical dilatation type method, a balloon dilatation type method and the like, and the methods have the following advantages and disadvantages: the traditional expansion type of the air bag can also be called as a pressure expansion type, and is realized by utilizing the principle that the volume expands when the high polymer material is subjected to the action of internal pressure. There are two problems in its use: firstly, the stretching expansion of the elastic material is not in a linear relation with the pressure, namely the elastic stretching is suddenly generated after the pressure reaches a certain value, namely the elastic material is suddenly expanded; secondly, the pressure expansion of the elastic material is affected by various factors and is not even, for example, a balloon is blown to realize the overall expansion of a certain part after the certain part is suddenly expanded, so that the expansion rods can bring a tearing feeling of the body to a patient due to the sudden expansion or local asymmetry, and the patient feels uncomfortable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned not enough, provide a friendly cervical dilating stick, the uncomfortable problem that the expansion rate and the uncertainty and the expansion inhomogeneity of expansion volume size that can effectively solve cervical dilating stick existence brought for the patient.

The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: a friendly cervical dilating rod comprises an elastic body dilating tube body with a hollow tubular structure, wherein the front end of the elastic body dilating tube body is provided with a leading-in cone, and the rear end of the elastic body dilating tube body is provided with a sealing connecting head for air suction or inflation.

Preferably, the elastomeric dilation tube is vacuum sealed.

Preferably, a supporting cone is further arranged between the inner cavity of the elastomer expanding tube body and the inner side of the guiding cone.

Preferably, a plurality of shrinkage and expansion marks which are beneficial to shrinkage or expansion of the elastomer expansion pipe body are arranged on the surface of the elastomer expansion pipe body in parallel.

Preferably, a plurality of parallel supporting ribs are further arranged on the inner side of the elastomer expansion pipe body.

Preferably, the elastomeric expandable tubular body is constructed of an elastomeric material and a carcass material.

Preferably, the sealing coupling is connected to the micro syringe pump or the syringe through a tube with a needle.

Preferably, the sealing coupling head is connected with one end of the handle pipe, and the other end of the handle pipe is provided with a sealing elastic body.

In addition, the utility model also discloses an application method of above-mentioned friendly cervical dilating stick, it includes following steps:

step 1): a doctor selects a cervical dilating rod with a corresponding specification by detecting cervical characteristics;

step 2): inserting the needle head into the sealing material of the sealing coupling head and locking, and connecting the pipeline of the needle head with a micro-injection pump or an injector;

step 3): the whole elastic body expansion tube body is sent into the cervix by taking the lead-in cone as an insertion end;

step 4): air is injected into the elastomer expansion tube body through a micro-injection pump or an injector, and the elastomer expansion tube body gradually recovers deformation and expands to complete the uterus dilatation process.

The utility model also discloses another application method of the friendly cervical dilating stick, which comprises the following steps:

step 2): the whole elastic body expansion tube body is sent into the cervix by taking the lead-in cone as an insertion end;

step 3): inserting the puncture needle into the sealed elastic body at the other end of the handle tube, and plugging the end of the puncture needle with fingers;

step 4): the fingers are slowly loosened, and the elastic body expanding tube body gradually recovers deformation due to the elastic restoring force of the elastic body expanding tube body and the release effect of the negative pressure in the elastic body expanding tube body, so that the uterus expanding process is completed.

The utility model has the advantages that:

1. the utility model discloses take reverse thinking to realize: firstly, preparing a cervical dilating rod with the required size after the cervical dilating rod is dilated, then carrying out vacuum contraction treatment on the elastomer dilating tube body and realizing sealing, and the elastomer dilating tube body is easy to insert as the volume and the diameter become smaller after the elastomer dilating tube body is contracted; when in use, only a certain amount of air is injected into the expansion rod elastic body tube to restore the size of the expansion rod elastic body tube, so that accurate expansion is realized; the micro peristaltic pump or the micro injection pump can realize continuous, uniform, micro and quantitative air 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 a micro pump, realize standardized operation in the process and improve the outpatient efficiency.

2. The utility model discloses can be through the size of micro-injection pump, syringe or handle pipe control expansion rate and expansion volume, effectively avoid taking place the great or less phenomenon of expansion, avoid expanding the misery that proruption and inhomogeneity brought for the patient, uncomfortable problem can not appear when the patient uses.

3. The utility model provides a support can provide the support in order to ensure that the pipe wall is whole can keep the line type and indeformable, and even shrink inwards, and it provides required rigidity for this expansion stick simultaneously, makes things convenient for the leading-in cervix of expansion stick.

4. The utility model provides a support awl can prevent the deformation that the elastomer expansion body shrink probably produced when the evacuation well to guarantee the pipe wall after the shrink and leading-in cone transition gently, and leading-in cone can combine different patient's cervical structural feature to carry out the pertinence design, in order to ensure to get into the travelling comfort.

5. The diameter size of the prefabricated expansion rod can completely realize the expansion controllability, the expansion rods of the same type can be selected according to the characteristics of different crowds, then the expansion time can be accurately selected according to the characteristics of different crowds, the maximum expansion size is fixed, the expansion rate is controllable, the comfort is realized, and the requirements of most crowds can be met without manufacturing the expansion rods of a plurality of specifications.

6. The utility model discloses also can be through the diameter size of prefabricated expansion stick promptly for expansion stick expansion target size, accurate controllable when using handle pipe gassing like this.

7. The utility model discloses a micropump provides the expansion power of this expansion stick, because the micropump can realize the injection of trace, continuous air, consequently, the expansion rate of expansion stick, the expansion completion time realize accurate control, if choose for use the expansion target phi 8, the pipe wall thickness 0.9mm, length 70 mm's expansion pump and choose for use microinjection pump 0.1ml/min shelves, then the expansion completion time is 0.31 × 0.31 × 3.14.14) × 7/0.1=21min, if choose for use microinjection pump 0.08ml/min shelves, then need 26.5 min.

8. The utility model discloses can carry out the cervical dilatation for many patients simultaneously to make the inspection realize standardization, high-efficient, reduce patient's misery and alleviate medical staff's the amount of labour and working strength simultaneously greatly.

Drawings

Fig. 1 is a schematic view showing a cross-sectional connection structure of a friendly cervical dilating rod;

FIG. 2 is a schematic cross-sectional view of the elastomeric flare body of FIG. 1 in a natural state;

FIG. 3 is a schematic cross-sectional view of the elastomeric dilation tube of FIG. 1 after being evacuated;

fig. 4 is a schematic view showing a cross-sectional coupling structure of another friendly cervical dilating rod;

FIG. 5 is a schematic cross-sectional view of the elastomeric flare body of FIG. 4 in a natural state;

FIG. 6 is a schematic cross-sectional view of the elastomeric dilation tube of FIG. 4 after being evacuated;

FIG. 7 is a schematic view of a structure of a contraction/expansion mark on the surface of an elastomer expansion tube body;

FIG. 8 is a schematic view of the micro-pump in abutting engagement with the sealing coupling head;

FIG. 9 is a schematic view of the syringe interfacing with the sealing coupling head;

FIG. 10 is a schematic view of the arrangement of the butt joint of the handle tube and the sealing coupling head;

FIG. 11 is a schematic view of the inner side of the frame material in the elastomer expandable tubular body;

FIG. 12 is a schematic view of the outer side of the frame material in the elastomeric expandable tubular body;

FIG. 13 is a schematic view of the middle portion of the frame material in the elastomeric expandable tubular body;

FIG. 14 is a schematic structural view of a frame material in an elastomer expandable tubular body using a membrane;

in the figure, an elastomer expanding tube body 1, a leading cone 2, a sealing coupling head 3, a supporting cone 4, a shrinkage and expansion mark 5, a supporting rib 6, a needle 7, a micro-injection pump 8, an injector 9, a handle tube 10, a sealing elastomer 11 and a puncture needle 12.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

As shown in fig. 1 to 10, a friendly cervical dilator comprises an elastic body dilating tube 1 with a hollow tubular structure, wherein the front end of the elastic body dilating tube 1 is provided with an introducing cone 2, and the rear end of the elastic body dilating tube 1 is provided with a sealing coupling head 3 for air suction or inflation.

Preferably, the elastomeric expandable tubular body 1 is vacuum sealed. When the cervical dilating rod of the utility model is manufactured, the air in the elastomer dilating tube body 1 needs to be pumped out and then sealed and the sealing connecting head 3 is installed, in the embodiment, the elastomer dilating tube body 1 needs to select the elastomer dilating tube body part with the same outer diameter as the dilated cervical dimension, and then the elastomer dilating tube body part is shrunk to the diameter suitable for the cervix by vacuumizing; in addition, the support cone 4 is reversely arranged on the leading-in cone 2, so that smooth transition of the leading-in cone 2 and the expansion working part of the elastomer expansion pipe body 1 is ensured during vacuum pumping.

Preferably, a supporting cone 4 is further arranged between the inner cavity of the elastomer expanding tube body 1 and the inner side of the leading-in cone 2. The supporting cone 4 can well prevent the deformation possibly generated by the contraction of the elastomer expanding tube body 1 during the vacuum pumping, and ensure the smooth transition between the contracted tube wall and the leading-in cone 2.

Preferably, as shown in fig. 7, the surface of the elastomer expansion tube 1 is provided with a plurality of contraction and expansion marks 5 in parallel for facilitating the contraction and expansion of the elastomer expansion tube 1. The stretch marks 5 are provided to ensure that the elastomer expanded tubular body 1 can be regularly shrunk inwards according to a predetermined shape as shown in fig. 3 and 6 after being vacuumized, and can also be restored and expanded outwards according to the predetermined shape.

Preferably, as shown in fig. 2, a plurality of support ribs 6 are further provided inside the elastomer expansion tube 1. The support bars 6 provide support to ensure that the tube wall as a whole can remain linear without deformation and contract uniformly inward, while providing the desired rigidity to the dilating rod to facilitate introduction of the dilating rod into the cervix.

Preferably, in this embodiment, the number of the support ribs 6 is four, and the support ribs 6 are symmetrically arranged along the central axis inside the elastomer expansion tube 1, and the area of the support ribs 6 close to the central axis inside the elastomer expansion tube 1 is in a right-angle structure. As shown in fig. 3, when the elastomer expansion tube 1 is contracted, the four support ribs 6 are all in right angle, so that the support ribs 6 can be stably spliced together, and the support effect of the support ribs 6 on the elastomer expansion tube 1 can be increased.

Preferably, the elastomeric expandable tubular body 1 may be made of an elastomeric material alone, or as shown in fig. 11, the elastomeric expandable tubular body 1 is made of an elastomeric material and a carcass material 13. As shown in fig. 11 to 13, the frame material 13 may be provided inside, outside or in the middle of the elastomer expansion tube 1, and the frame material 13 may be a cord, a cord fabric, a polymer film material or a metal film material (as shown in fig. 14).

Preferably, as shown in fig. 8, the sealing coupling head 3 is connected to the micro syringe pump 8 through a tube with a needle 7. This allows the rate of air injection to be controlled by the micro-syringe pump 8 and the time of dilation to be determined. In addition, the micro-injection pump 8 can simultaneously provide power for a plurality of dilating rods, so that the uterus dilating process of a plurality of patients is simultaneously implemented, and the efficiency is greatly improved; in addition, the volume in the expansion rod is quantitative, so that the required diameter can be ensured in the set time by adjusting the flow of the micro-injection pump 8, the treatment efficiency is improved, and a control interface for selecting the number of people, adjusting the air quantity and the transmission rate can be arranged on the micro-injection pump 8, thereby being beneficial to accurate control. Preferably, the micro syringe pump 8 can be replaced with a micro peristaltic pump to achieve the same effect.

Preferably, as shown in fig. 9, the sealing coupling head 3 is connected to a syringe 9 through a tube with a needle 7. The method for injecting air through the injector 9 is simple, convenient and accurate to operate, is in a self-adjusting mode, and the patient slowly injects air into the cervical dilator by holding the injector 9 by hand, so that the injection speed is determined by the comfort level of the patient.

Preferably, as shown in fig. 10, the sealing coupling head 3 is connected with one end of a handle tube 10, and the other end of the handle tube 10 is provided with a sealing elastic body 11. The structure is an automatic pressure release structure, namely, after the puncture needle head 12 pierces the sealing elastomer 11, the elastomer expanding tube body 1 is made of high-elasticity rubber material, so that the original shape can be restored after the vacuum is relieved, and the expansion is automatically realized. When the cervical dilator is manufactured, air in the elastic body dilating tube body 1 is pumped out, then the sealing and connecting head 3 is sealed and installed, and then one end of the handle tube 10 is connected with the sealing and connecting head 3.

In this embodiment, the elastomeric dilating tubular body 1 and the sealing coupling head 3 may be made of a highly elastic rubber material, and the surfaces of the elastomeric dilating tubular body 1 and the introducing cone 2 may be treated with a low friction coefficient fluorine paint or silicon paint, for example, a smooth coating containing polytetrafluoroethylene or silicone paint may be coated to achieve the comfort of entering and reduce the discomfort caused by the frictional resistance of the introduced cervix.

step 1): a doctor selects a cervical dilating rod with a corresponding specification by detecting cervical characteristics; in the embodiment, the elastic body expansion tube body 1 needs to select the elastic body expansion tube body part with the same outer diameter as the expanded cervical dimension, and then the elastic body expansion tube body part is contracted into the diameter suitable for the cervix by vacuumizing; in addition, the guide cone 2 is reversely provided with the supporting cone 4, so that the smooth transition of the guide cone 2 and the expansion working part of the elastomer expansion pipe body 1 is ensured during the vacuum pumping;

step 2): inserting the needle 7 into the sealing material of the sealing coupling head 3 and locking, and connecting the pipeline of the needle 7 with a micro-injection pump 8 or an injector 9;

step 3): the whole elastomer expansion tube body 1 is sent into the cervix by taking the leading-in cone 2 as an insertion end;

step 4): air is injected into the elastomer expansion tube body 1 through the micro-injection pump 8 or the injector 9, and the elastomer expansion tube body 1 gradually recovers deformation and expands to complete the uterus dilatation process. In this step, it is necessary to control the air injection rate and the time for the elastomer expansion tube body 1 to reach a prescribed size according to the age and cervical characteristics of the patient. During use, a fixed amount of air can be injected into the elastomeric dilation body 1 by means of the micro-syringe pump 8 or the syringe 9, the amount of air introduced being determined as the case may be, for example according to the pain felt by the patient or the volume of the cervix itself.

step 2): the whole elastomer expansion tube body 1 is sent into the cervix by taking the leading-in cone 2 as an insertion end;

step 3): inserting a puncture needle 12 into the sealing elastic body 11 at the other end of the handle tube 10, and blocking the end of the puncture needle 12 with fingers;

step 4): the fingers are slowly loosened, and the elastic body expanding tube body 1 gradually recovers deformation due to the elastic restoring force of the elastic body expanding tube body 1 and the release effect of the negative pressure in the elastic body expanding tube body, so that the uterus expanding process is completed. The volume of air entering is equal to the volume of the inner cavity of the tube body, so that the original size of the tube body is restored, and accurate expansion is realized.

In this embodiment, only need through the prefabricated expansion stick of making a plurality of kinds of big, medium, small-size different diameter sizes, can realize the expansion controllability completely, can select the expansion stick of corresponding specification according to different crowd characteristics, then according to different crowd characteristics accurate select the expansion time can, the expansion maximum size is fixed, the expansion rate is controllable, realizes the travelling comfort, need not make the expansion stick of a lot of specifications can satisfy most crowd's demand. When the expansion rod is manufactured, the elastomer expansion pipe body 1 with the prefabricated diameter is formed by vacuumizing and sealing the tail end, and the whole expansion rod can be made of the same elastomer expansion pipe body material.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. A friendly cervical dilating rod, which is characterized in that: the air-suction type elastic expansion pipe comprises an elastic body expansion pipe body (1) in a hollow tubular structure, wherein a leading-in cone (2) is arranged at the front end of the elastic body expansion pipe body (1), and a sealing connecting head (3) for air suction or inflation is arranged at the rear end of the elastic body expansion pipe body (1).

2. The friendly cervical dilating rod of claim 1, wherein: the elastomer expansion pipe body (1) is in a vacuum sealing state.

3. The friendly cervical dilating rod of claim 1, wherein: a supporting cone (4) is arranged between the inner cavity of the elastomer expanding tube body (1) and the inner side of the leading-in cone (2).

4. The friendly cervical dilating rod of claim 1, wherein: the surface of the elastomer expansion pipe body (1) is provided with a plurality of contraction and expansion marks (5) which are beneficial to the contraction or expansion of the elastomer expansion pipe body (1) in parallel.

5. A friendly cervical dilating rod as claimed in claim 1 or 4, wherein: the inner side of the elastomer expansion pipe body (1) is also provided with a plurality of parallel supporting ribs (6).

6. The friendly cervical dilating rod of claim 1, wherein: the elastomer expansion pipe body (1) is composed of an elastomer material and a framework material (13).

7. The friendly cervical dilating rod of claim 1, wherein: the sealing coupling head (3) is connected with a micro-injection pump (8) or an injector (9) through a pipeline with a needle (7).

8. The friendly cervical dilating rod of claim 1, wherein: the sealing coupling head (3) is connected with one end of a handle pipe (10), and a sealing elastic body (11) is arranged at the other end of the handle pipe (10).