CN208372255U

CN208372255U - A kind of non-wrinkled transfiguration cuff trachea cannula

Info

Publication number: CN208372255U
Application number: CN201721232447.7U
Authority: CN
Inventors: 黄立宁; 李旭泽; 邸丽丽; 康荣田
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-25
Filing date: 2017-09-25
Publication date: 2019-01-15
Anticipated expiration: 2027-09-25

Abstract

The utility model discloses a kind of non-wrinkled transfiguration cuff trachea cannulas, are related to medical devices field, and the utility model includes intubation and cuff；The cuff is the cavity being made of buffer area and tracheae contact zone；The buffer area is tightly connected along intubation axial direction in the one or both ends for being set to cuff, and with tracheae contact zone；Surface deformation ability caused by the buffer area unit pressure changes is greatly than tracheae contact zone；The cuff is when pipe and tracheae are fitted closely and be inflated without pressure, and when non-wrinkled in sealing contact to cuff buffer area and tracheae, the pressure change of buffer area is 0-30cm H₂O.The utility model uses different ductile materials at different function position, realize that cylindricality cuff (tracheae contact zone) and patient's trachea wall fit closely in the reasonable pressure limit of cuff, cuff both ends (buffer area) are non-wrinkled to reach sealing air flue, solves the problems, such as micro accidentally suction.

Description

A kind of non-wrinkled transfiguration cuff trachea cannula

Technical field

The utility model relates to a kind of non-wrinkled transfiguration cuff trachea cannulas, are related to medical devices field.

Background technique

There are the following problems for trachea cannula at present:

The trachea cannula cuff overwhelming majority is high appearance low-pressure type, is greater than tracheal diameter after the inflation of this type dlameter of the Cuff, because This is filled with air when it, and cuff can form gauffer in patient airway, and air flue cannot be fully sealed.With prolonging for indwelling catheter time Long, oropharyngeal secretions or the gastric content that backflows above cuff can flow into intrapulmonary along gauffer, form micro sucking (see attached drawing 1), Aspiration pneumonia or Ventilator Associated Pneumonia are caused, Rehabilitation or even threat to life are influenced.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of non-wrinkled transfiguration cuff trachea cannulas, it is intended to not Congenerous position use different ductile materials, in the reasonable pressure limit of cuff realize cylindricality cuff (tracheae contact zone) and Patient's trachea wall fits closely, and cuff both ends (buffer area) is non-wrinkled to reach sealing air flue, solves the problems, such as micro accidentally suction.

In order to solve the above technical problems, technical solution adopted in the utility model is: a kind of non-wrinkled transfiguration cuff gas Cannula, it is characterised in that including intubation and cuff；The cuff is the cavity being made of buffer area and tracheae contact zone；Institute Buffer area is stated along intubation axial direction in the one or both ends for being set to cuff, and be tightly connected with tracheae contact zone；It is described slow Rush surface deformation ability caused by area's unit pressure changes greatly than tracheae contact zone；The cuff is close with tracheae in pipe When being bonded and being inflated without pressure, when non-wrinkled in sealing contact to cuff buffer area and tracheae, the pressure change of buffer area is 0-30cm H₂O。

A further technical solution lies in the cuff arrives cuff when pipe is bonded with tracheae and is inflated without pressure When buffer area and tracheae are non-wrinkled in sealing contact, the pressure change of buffer area is 0-20cm H₂O。

A further technical solution lies in the cuff arrives cuff when pipe is bonded with tracheae and is inflated without pressure When buffer area and tracheae are non-wrinkled in sealing contact, the pressure change of buffer area is 20-30cm H₂O。

The beneficial effects of adopting the technical scheme are that the utility model is at different function position using different Ductile material realizes that cylindricality cuff (tracheae contact zone) and patient's trachea wall closely paste in the reasonable pressure limit of cuff It closes, cuff both ends (buffer area) is non-wrinkled to reach sealing air flue, solves the problems, such as micro accidentally suction.

Detailed description of the invention

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.

Fig. 1 is the high structural schematic diagram for holding low-pressure type trachea cannula and generating fold；

Fig. 2-4 is the utility model structure diagram；

Fig. 5 is the utility model usage state diagram；

1, it is intubated；2, cuff；3, tube wall；4, walled conduits；5, conduit；6, cuff pressure receptive field；7, buffer area；8, gas Pipe contact zone；9, folded region.

Specific embodiment

Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear Chu is fully described by, it is clear that and described embodiment is only a part of the embodiment of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Many details are explained in the following description in order to fully understand the utility model, but this is practical new Type can also be implemented using other than the one described here other way, and those skilled in the art can be without prejudice to this reality With doing similar popularization in the case where novel intension, therefore the utility model is not limited by the specific embodiments disclosed below.

As shown, the utility model elaborates a kind of non-wrinkled transfiguration cuff trachea cannula, it is characterised in that including The cuff 2 of 1 end of intubation is arranged in intubation 1, the cuff pressure receptive field 6 penetrated through by conduit 5, walled conduits 4 and cuff 2, It is located on cuff pressure receptive field 6 and to the check valve of 6 inner inflatable of cuff pressure receptive field；The walled conduits 4 are located at slotting Inside tube wall 3.

After trachea cannula is inserted into designated position, pushing block is pressed with syringe nipple, sealing ring will be made far from check valve Valve body, and then air is squeezed into cuff pressure receptive field, cuff；After inflating, syringe is withdrawn, due to the work of check valve With playing the effect of sealing.

Wherein, cuff 2 is the cavity being made of buffer area 7 and tracheae contact zone 8；The buffer area 7 is along 1 axial direction side of intubation It is tightly connected in the one or both ends for being set to cuff 2, and with tracheae contact zone 8；7 unit pressure of the buffer area variation is drawn The surface deformation ability risen is bigger than tracheae contact zone 8；

The cuff 2 is wrinkle-free to cuff buffer area and tracheae when pipe and tracheae are fitted closely and be inflated without pressure When pleat is in sealing contact, the pressure change of buffer area is 0-30cm H₂O。

Preferably, the cuff is when pipe is bonded with tracheae and is inflated without pressure, to cuff buffer area and tracheae without When gauffer is in sealing contact, the pressure change of buffer area is 0-20cmH₂O。

Preferably, the cuff is in pipe, when being bonded with tracheae and being inflated without pressure, to cuff buffer area and tracheae without When gauffer is in sealing contact, the pressure change of buffer area is 20-30cm H₂O。

The utility model can avoid increasing because fold causes the micro risk missed and inhale and cause Ventilator Associated Pneumonia The safety of patient.

The utility model is tracheae conformable region, surface caused by unit pressure changes in cuff lateral body (tracheae contact zone 8) Deformability is relatively poor；Be capacity control region at the top and bottom of cuff, surface deformation ability caused by unit pressure changes compared with There is by force good ductility, can adjust at any time, to reach sealing state.

With sleeve bag gas-filling pressure increase, the capacity control region (buffer area) of cuff is radially extended, and cuff outer diameter gradually increases Add, until tracheae contact zone is tightly contacted with tracheal mucosa, at this time if pressure needed for not reaching clinical cuff, continues to inflate The capacity control region (buffer area) of cuff longitudinally extends up to until reaching clinical convenient pressure.Outer diameter, which is greater than, when sleeve bag gas-filling suffers from The internal diameter of person's tracheae, when cuff is charged a certain amount of gas, the capacity control region (buffer area) of cuff, which is laterally extended, makes cuff Both ends or one end with tracheae is non-wrinkled is bonded, tightly contacted with patient airway's mucous membrane, to achieve the purpose that air flue seals.

Material selection: the medical elastics material such as optional silica gel, PVC, rubber；

Two kinds of materials may be selected and be adjusted that surface deformation ability caused by unit pressure changes is strong, weak is made as cuff.

Surface deformation ability selection same material, subregion caused by unit pressure changes can also be adjusted according to thickness Thickness is controlled, to realize that it is strong and weak that unit pressure changes caused surface deformation ability.

Claims

1. a kind of non-wrinkled transfiguration cuff trachea cannula, it is characterised in that including intubation and cuff；The cuff is by buffering The cavity in area and tracheae contact zone composition；The buffer area edge is intubated axial direction in the one or both ends for being set to cuff, and It is tightly connected with tracheae contact zone；Surface deformation ability caused by the buffer area unit pressure changes is greatly than tracheae contact zone； The cuff is non-wrinkled in sealing contact to cuff buffer area and tracheae when pipe and tracheae are fitted closely and be inflated without pressure When, the pressure change of buffer area is 0-30cm H₂O。

2. a kind of non-wrinkled transfiguration cuff trachea cannula according to claim 1, which is characterized in that the cuff is in tracheae When inside is bonded with tracheae and is inflated without pressure, when non-wrinkled in sealing contact to cuff buffer area and tracheae, the pressure of buffer area becomes Turn to 0-20cm H₂O。

3. a kind of non-wrinkled transfiguration cuff trachea cannula according to claim 1, which is characterized in that the cuff is in tracheae When inside is bonded with tracheae and is inflated without pressure, when non-wrinkled in sealing contact to cuff buffer area and tracheae, the pressure of buffer area becomes Turn to 20-30cm H₂O。