CN202497149U

CN202497149U - Breathing filter

Info

Publication number: CN202497149U
Application number: CN2012201072465U
Authority: CN
Inventors: 张旭东; 罗超
Original assignee: NINGBO SHENGYURUI MEDICAL APPLIANCES CO Ltd
Current assignee: NINGBO SHENGYURUI MEDICAL APPLIANCES CO Ltd
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2012-10-24
Anticipated expiration: 2022-03-21

Abstract

The utility model discloses medical equipment, and provides a breathing filter, which is simple in structure, contributes to improving the use comfort of a patient changing the shape of a mouth interface and further ensuring the lung function detection accuracy, and is used for solving the technical problems of the influence of poor shape fitness between the mouth interface and the mouth of a user on the use comfort, the influence of easy leakage of gas from the edge of the mouth interface during breathing detection on the accuracy of lung function detection, and the like existing in the prior art. The breathing filter comprises an upper shell and a lower shell, wherein the upper shell is butted and encircled with the lower shell, so that an enclosed accommodating cavity is formed; a filtering medium is arranged in the enclosed accommodating cavity; an air inlet is formed on the upper shell; an air outlet is formed on the lower shell; and the air inlet extends outwards, so that an oval mouth interface is formed.

Description

Breathing circuit filter

Technical field

This utility model relates to a kind of armarium, relates in particular to a kind of cross infection of avoiding, and improve patient's comfort be used for pulmonary function test (pft) the time disposable breathing circuit filter.

Background technology

Pulmonary function test is a kind of common tool of research physiology of respiration, also is the indispensable important rings of respiratory system disease diagnosis and treatment, during conventional pulmonary function test; Patient's respiratory tract must be connected with the breath test pipeline of pulmonary function appearance, and requires the patient in these complicated breathing circuits and equipment, to carry out the air-breathing and exhale action of best endeavors, in checking process; Usually cause that the patient coughs, so the patient firmly breathes or the residual spirt of looking into etc. very easily of oral secretion, food during cough is gone in inspection apparatus surface or the breathing circuit, but often be difficult to guarantee when using thoroughly cleaned in each patient's preoperation inspection instrument and loop and sterilize; Very easily cause cross infection; Therefore people begin between patient's face and pulmonary function instrument, to use defecator, and the antibacterial through in the defecator absorption patient breath has not only avoided the generation of cross infection; Improve pulmonary function test efficient; Can reduce simultaneously the loss of pulmonary function instrument again, prolong the service life of instrument, but there is poor filtration effect usually in existing breathing circuit filter; Be difficult to articulate interface shape and the face shape goodness of fit of docking with the patient oral cavity are poor; Not only cause comfort poor, and patient's gas when exhale detecting very easily leaks from the interface edge of being difficult to articulate, and cause pulmonary function test to lose efficacy.

Chinese patent discloses the biofilter (CN201949754U) that a kind of respiratory system is used; Comprise the intake section of the housing shape that mutual fastening is fixed and the portion of giving vent to anger; Intake section comprises air inlet housing and air inlet pipe; The portion of giving vent to anger comprises give vent to anger shell and escape pipe, and intake section and give vent to anger and be provided with filter course between the portion is provided with gas diverter in the intake section.This device is through the center pressure that gas diverter reduces filter course is set in intake section; Though can improve filter effect; But same be difficult to articulate interface shape and the face shape goodness of fit of docking with the patient oral cavity of existing is poor; Not only influence comfort, and gas releases from the interface edge of being difficult to articulate very easily when exhaling detection, influences the problems such as accuracy of pulmonary function test.

Summary of the invention

This utility model has mainly provided a kind of simple in structure; Improve the comfortableness that the patient uses through the be difficult to articulate shape of interface of change; And further guarantee the breathing circuit filter of pulmonary function test accuracy, it is poor to have solved be difficult to articulate interface shape and the face shape goodness of fit that exist in the prior art, not only influences comfort; And gas very easily releases from the interface edge of being difficult to articulate when exhale detecting, and influences the technical problem of the accuracy etc. of pulmonary function test.

The above-mentioned technical problem of this utility model mainly is able to solve through following technical proposals: a kind of breathing circuit filter; Comprise upper shell and lower house; Upper shell forms airtight container cavity with surrounding jointly after lower house docks, and in airtight container cavity, is provided with filter medium, on upper shell, is provided with air inlet; On lower house, be provided with the gas outlet, said air inlet stretches out and forms the oval-shaped interface of being difficult to articulate.Upper and lower casing butt joint back forms airtight container cavity, and in airtight container cavity, filter medium is set, and the patient exhales in airtight container cavity from the air inlet on the upper shell during use; The gas of the breathing out filter medium of flowing through, antibacterial and the food debris etc. and the gas outlet on lower house that filter out in the gas get into the pulmonary function test instrument that links to each other, and be simple in structure; Easy to assembly; Because stretching out, air inlet forms the oval-shaped interface of being difficult to articulate simultaneously, the opening ovalize of the interface of promptly being difficult to articulate, and it is consistent with the open face shape of patient; Therefore face can well coincide with the interface of being difficult to articulate; Comfort is good, and gas can outwards not release from periphery, thereby has guaranteed the accuracy and the effectiveness of pulmonary function test.

As preferably, said filter medium is the superfine polypropylene fiber membrane of static electrification, and filter medium is folded between upper shell and the lower house.The superfine polypropylene fiber of static electrification has excellent hydrophobic property, thereby is unfavorable for the growth of antibacterial and virus, has the characteristic of microgranules such as machinery obstruct and Electrostatic Absorption antibacterial, virus, good filtration effect, and efficient is high; Filter medium is film like and is clamped between upper and lower casing, installs simply, and firm position, flow resistance is little, improves the accuracy of pulmonary function test.

As preferably, in said upper shell, along the circumferential direction be laid with on some vertically clamping plate, in lower house, be provided with some with on vertical corresponding following vertical clamping plate of clamping plate, filter medium is clamped between last vertical clamping plate and time vertical clamping plate.Upper and lower vertical clamping plate not only can grip filter medium, and can the gas that get into airtight container cavity disperseed to improve filter effect with the gas flow of equilibrium through filter medium to all around.

As preferably, on the interface of said upper shell, be provided with annular boss, on the interface of lower house, be provided with cannelure, annular boss is inlaid in the cannelure and through ultrasonic bonding and links to each other.Between upper and lower casing through the annular boss of joining mutually with cannelure interlocking be in the same place, connected mode is simple; Upper and lower casing links to each other through ultrasonic bonding again, has improved the firm and sealing of airtight container cavity.

As preferably, said upper shell and lower house are the disc of symmetrical distribution, and air inlet is with the top that is located in upper shell, and the gas outlet is with the bottom that is located in lower house.Increase the surface area of filter medium when upper and lower casing is disc-shaped structure, guaranteed filter effect; When upper and lower casing is symmetrically distributed, guarantee filter medium pressure at both sides balance, improve the service life of filter medium; Air inlet and gas outlet are coaxial when being provided with, and the resistance in the time of can reducing gas and flow through filter guarantees the accuracy of pulmonary function test.

As preferably, said upper shell and lower house are food stage ABS or medical grade PP material.Food stage ABS or medical grade PP material have guaranteed the safety that filter uses.

Therefore; The breathing circuit filter of this utility model has following advantage: patient's breath is during through airtight container cavity, and pathogen such as the antibacterial in the gas, virus are attracted on the filter medium, both can prevent the microbiological contamination instrument that the patient breathes out; Can prevent that again the patient from sucking pathogenic microorganism from the instrument that pollutes; Avoid the generation of cross infection effectively, reduce loss simultaneously, improve lung function work efficiency and the accuracy that detects data instrument; The superfine polypropylene fiber filter material, efficient low-resistance, easy to use, economic security.

Description of drawings:

Fig. 1 is the explosive view of this utility model;

Fig. 2 is the vertical view of this utility model;

Fig. 3 is an A-A cutaway view shown in Figure 2.

The specific embodiment:

Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of this utility model.

Embodiment:

As shown in Figure 1, a kind of breathing circuit filter of this utility model comprises the discoidal upper shell 1 and discoidal lower house 2 of mutual butt joint; Upper shell 1 is processed by the ABS material of food stage with lower house 2, and the shape of the two and size are consistent, upper shell 1 with surround airtight container cavity 3 of formation jointly after lower house 2 docks; And at the filter medium 4 of

upper shell

1 and 2 clamping a slices of lower house film like, filter medium 4 is processed by the superfine polypropylene fiber of static electrification, coaxially at the top of upper shell 1 has an air inlet 5; Coaxially in the bottom of lower house 2 have a gas outlet 6; As shown in Figure 2, air inlet 5 wherein stretches out and forms the oval-shaped interface 7 of being difficult to articulate, and is as shown in Figure 3; Vertical clamping plate 11 on along the circumferential direction evenly distributed 8 in upper shell 1; Evenly distributed 8 following vertical clamping plate 21 in lower house 2, it is corresponding and be clamped in the both sides of filter medium 4, annular boss 12 of coaxial integral type formation on the interface of upper shell 1 to go up vertical clamping plate 11 and down vertical clamping plate 21; Coaxial integral type forms a cannelure 22 on the interface of lower house 2, and annular boss 12 is inlaid in the cannelure 22 and through ultrasonic bonding and links to each other.

During use, at first the gas outlet 6 with breathing circuit filter is connected with the breath test pipeline of pulmonary function appearance, and patient's face is bitten the interface 7 of being difficult to articulate; The sealing label all around of guaranteeing lip is on the outer ring surface of interface 7 of being difficult to articulate; Forced expiration again, gas carry over air inlet 5 and get into airtight container cavity 3, and filter medium 4 absorption also filter out pathogenic bacteria in the gas, virus etc.; Detect thereby make clean gas get into the pulmonary function appearance, use the instant breathing circuit filter of removing and more renewing in back.

Specific embodiment described herein only is that the design to this utility model illustrates.This utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of this utility model or surmount the defined scope of appended claims.

Claims

1. breathing circuit filter; Comprise upper shell (1) and lower house (2); Upper shell (1) forms airtight container cavity (3) with surrounding jointly after lower house (2) docks, and in airtight container cavity (3), is provided with filter medium (4), on upper shell (1), is provided with air inlet (5); On lower house (2), be provided with gas outlet (6), it is characterized in that: said air inlet (5) stretches out and forms the oval-shaped interface of being difficult to articulate (7).

2. breathing circuit filter according to claim 1 is characterized in that: said filter medium (4) is the superfine polypropylene fiber membrane of static electrification, and filter medium (4) is folded between upper shell (1) and the lower house (2).

3. breathing circuit filter according to claim 1 and 2; It is characterized in that: in said upper shell (1), along the circumferential direction be laid with some and go up vertical clamping plate (11); In lower house (2), be provided with the some following vertical clamping plate (21) corresponding with last vertical clamping plate (11), filter medium (4) is clamped in to be gone up between vertical clamping plate (11) and the following vertical clamping plate (21).

4. breathing circuit filter according to claim 1 and 2; It is characterized in that: on the interface of said upper shell (1), be provided with annular boss (12); On the interface of lower house (2), be provided with cannelure (22), annular boss (12) is inlaid in the cannelure (22) and through ultrasonic bonding and links to each other.

5. breathing circuit filter according to claim 3; It is characterized in that: on the interface of said upper shell (1), be provided with annular boss (12); On the interface of lower house (2), be provided with cannelure (22), annular boss (12) is inlaid in the cannelure (22) and through ultrasonic bonding and links to each other.

6. breathing circuit filter according to claim 1 and 2; It is characterized in that: said upper shell (1) and lower house (2) are the disc of symmetrical distribution; And air inlet (5) is with the top that is located in upper shell (1), and gas outlet (6) are with the bottom that is located in lower house (2).

7. breathing circuit filter according to claim 5; It is characterized in that: said upper shell (1) and lower house (2) are the disc of symmetrical distribution; And air inlet (5) is with the top that is located in upper shell (1), and gas outlet (6) are with the bottom that is located in lower house (2).

8. breathing circuit filter according to claim 1 and 2 is characterized in that: said upper shell (1) and lower house (2) are food stage ABS or medical grade PP material.

9. breathing circuit filter according to claim 7 is characterized in that: said upper shell (1) and lower house (2) are food stage ABS or medical grade PP material.