CN206950438U

CN206950438U - A kind of breathing circuit filter

Info

Publication number: CN206950438U
Application number: CN201621340156.5U
Authority: CN
Inventors: 曾小坚; 刘文博
Original assignee: SHAOXING UNDIS MEDICAL TECHNOLOGY Co Ltd
Current assignee: SHAOXING UNDIS MEDICAL TECHNOLOGY Co Ltd
Priority date: 2016-12-07
Filing date: 2016-12-07
Publication date: 2018-02-02
Anticipated expiration: 2026-12-07

Abstract

It the utility model is related to a kind of breathing circuit filter, including upper lid, lower cover, filter membrane, humidifying zone of heating medium；Filter membrane is arranged in the cavity formed after upper lid and lower cover fasten with humidifying zone of heating medium；Gap is left at upper lid and lower cover fastening.The utility model realize in link is assembled in production will not resilience scatter, improve operating efficiency, while also ensure that product quality.

Description

A kind of breathing circuit filter

Technical field

Technical field of medical instruments is the utility model is related to, it is especially relevant with a kind of breathing circuit filter.

Background technology

For common people during eupnea, the gas of suction has the effect of humidification and heating after the positions such as nasopharynx larynx Fruit.Need to establish artificial airway in hospital surgical or some therapeutic processes, lose gas humidity and the work(of temperature adjustment Can, so breathing circuit filter is generally added in artificial airway, such as hot and humid area filter etc..

Current existing hot and humid area filter is as shown in Chinese patent ZL201520468458.X, the art solutions Include machine connection end, filter chamber, patient connection end, filter membrane and hot and humid area layer are installed in filter chamber.Gas from The import of machine connection end have passed through the filtering and humidifying heating of filter chamber, successfully improve and exhale to the outlet of patient connection end The environment of aspirating unit.

Because such breathing circuit filter production requirement is high, therefore, to assure that be fully sealed at part connecting portion, it is impossible to have Gas leak phenomenon, therefore most of use ultrasonic bonding.Close in order to weld, machine connection end and patient connection end fasten The position of contact is substantially that size is fitted close.But because machine connection end and these parts of patient connection end are using modeling Expect material, there is certain resilience, and surface is very smooth, and the filter chamber of breathing circuit filter is integrally rounded, is filled in production Timing, the round edge and patient connection end circumference of machine connection end offset and clasped, easily flicked within the section time after placement, and welding Connect because producing ultrasonic wave in operating process, and when welding operation, because producing ultrasonic wave, and cause electro static filtering film to be sucked up And then displacement is produced, form edge cavity or withhold incomplete situation, reduce filter effect.Therefore need again before welding Ressemble, repeat rate height, be unfavorable for efficiently producing.

Therefore the present inventor designs the type money structure after a kind of improvement, such issues that to solve.

Utility model content

The purpose of this utility model is to provide a kind of breathing circuit filter, realize production assemble link in will not resilience dissipate Open, improve operating efficiency, while also ensure that product quality.

To achieve the above object, the technical solution adopted in the utility model is as follows：

A kind of breathing circuit filter, including upper lid, lower cover, filter membrane, humidifying zone of heating medium；Filter membrane and humidifying zone of heating Medium is arranged in the cavity formed after upper lid and lower cover fasten；Gap is left at upper lid and lower cover fastening.

Described upper lid and lower cover is circle, and the ring side that upper lid lower surface is formed in a circle insertion lower cover, ring side surface is set It is equipped with lug boss；Lower cover is circular groove, fastens the inner surface that rear projection portion is resisted against lower cover groove.

Described lug boss is rib, round dot, cylindrical structure.

Described lug boss even circumferential distribution.

Described rib bottom is fillet structure.

Described upper lid has inlet suction port and sample tap, and lower cover has air outlet adapter.

Described humidifying zone of heating medium is corrugation humidifying paper.

Described humidifying zone of heating medium is sponge humidifying medium.

Compared with prior art, it is of the present utility model to have the advantages that：

First, after forming certain interval between upper and lower covers in the utility model, certain resilience and deformation are left to plastics Space, both will not scatter again after fastening, it is ensured that the stability of assembling, improve operating efficiency.

Secondly as the presence in gap, during ultrasonic bonding, after both material moltens, liquid has receiving space, will not The liquid of melting is caused to be flowed into cavity, contaminated filter film and humidifying zone of heating medium, it is ensured that the quality of product.

In other the utility model all Multiple Shapes such as rib, round dot, cylinder can be used to ensure that gap is present, it is simple in construction, Easy to process, cost is low, suitable for large-scale production.

Brief description of the drawings

Fig. 1 is structural representation in the utility model preferred embodiment；

Fig. 2 is the diagrammatic cross-section of A-A in Fig. 1；

Fig. 3 is assembling schematic diagram in the utility model preferred embodiment；

Fig. 4 is the structure one in the utility model preferred embodiment protrusions portion；

Fig. 5 is the structure two in the utility model preferred embodiment protrusions portion；

Fig. 6 is the structure three in the utility model preferred embodiment protrusions portion.

Embodiment

Referring to Fig. 1 to Fig. 6, the utility model preferred embodiment is further elaborated.

A kind of breathing circuit filter, the part being mainly concerned with have upper lid 1, lower cover 2, filter membrane 3, humidifying zone of heating medium 4.

Upper lid 1, lower cover 2 are working of plastics, and upper lid 1 is mainly air inlet position, and top is provided with what is be connected with extraneous gas Inlet suction port 11, the one side of inlet suction port 11 are additionally provided with sample tap 12.The bottom of lower cover 2 offers air outlet adapter 21.Upper lid 1 Overall rounded with lower cover 2, upper lid 1 is flat cover shape or the lid with some radians, and lower cover 2 is a circular groove. Both form the cavity 5 of circle after fastening, humidifying zone of heating medium 4 and filter membrane 3 are sequentially placed into cavity 5, upper lid 1 covered Humidifying heating and filtering cavity is formed after entering.Humidifying zone of heating medium 4 uses corrugation humidifying paper or sponge humidifying in the present embodiment The medium of medium or other identical effects.

Major design point of the present utility model is to form certain interval 6 between lid 1, lower cover 2.Upper lid 1 in this implementation Lower surface form a ring side 13 close to edge, the rib 14 of multiple even circumferentials distributions is provided with ring side 13.Due to muscle The presence of bar 14, when upper lid 1 is buckled into lower cover 2, rib 14 has been resisted against the inner surface of the groove of lower cover 2, institute's above lid 1, under Lid 2 forms certain interval 6.Smooth in order to assemble, the bottom of rib 14 is fillet structure.

It is the form using rib 14 in certain the present embodiment, except the form of the rib 14 in Fig. 4, other can also be used Boss shapes do simple replacement, such as 16 this structure of the structure of round dot 15 in Fig. 5 or the cylinder in Fig. 6 Etc., while the lug boss of other geometries can be similarly used in the utility model.

Due to the presence in the gap 6, solves the problems, such as the resilience after upper lid 1 and lower cover 2 are fitted close in assembling process, simultaneously Also the melt liquid given in welding process provides space, improves product quality.

Above is the utility model preferred embodiment, if other inventors are made under the utility model concept thereof Some simple replacements and change, should all be contemplated as falling within protection category of the present utility model.

Claims

A kind of 1. breathing circuit filter, it is characterised in that：Including upper lid, lower cover, filter membrane, humidifying zone of heating medium；Filter membrane with Humidifying zone of heating medium is arranged in the cavity formed after upper lid and lower cover fasten；Gap is left at upper lid and lower cover fastening； Described upper lid and lower cover is circle, and the ring side that upper lid lower surface is formed in a circle insertion lower cover, ring side surface is provided with projection Portion；Lower cover is circular groove, fastens the inner surface that rear projection portion is resisted against lower cover groove.
A kind of 2. breathing circuit filter as claimed in claim 1, it is characterised in that：Described lug boss is rib, round dot, cylinder Structure.
A kind of 3. breathing circuit filter as claimed in claim 1, it is characterised in that：Described lug boss even circumferential distribution.
A kind of 4. breathing circuit filter as claimed in claim 2, it is characterised in that：Described rib bottom is fillet structure.
A kind of 5. breathing circuit filter as claimed in claim 1, it is characterised in that：Described upper lid has inlet suction port and sampling Mouthful, lower cover has air outlet adapter.
A kind of 6. breathing circuit filter as claimed in claim 1, it is characterised in that：Described humidifying zone of heating medium is that corrugation is wet Change paper.
A kind of 7. breathing circuit filter as claimed in claim 1, it is characterised in that：Described humidifying zone of heating medium is that sponge is wet Change medium.