CN2364862Y

CN2364862Y - Non-repeated inhalating nitrous oxide (N*O) mask device

Info

Publication number: CN2364862Y
Application number: CN 99234434
Authority: CN
Inventors: 张国良; 徐礼鲜; 薛振恂
Original assignee: STOMATOLOGICAL COLLEGE OF 4TH MILITARY SURGEON UNIV CPLA
Current assignee: STOMATOLOGICAL COLLEGE OF 4TH MILITARY SURGEON UNIV CPLA
Priority date: 1999-03-12
Filing date: 1999-03-12
Publication date: 2000-02-23
Anticipated expiration: 2009-03-12

Abstract

The utility model relates to a non-repeated nitrous oxide (N2O) inhaling mask device, which relates to a dentistry auxiliary tool which is combined with an anaesthesia apparatus. The utility model has the advantages of simplicity, application, and economy. In the utility model, two ends of a Y-shaped tube of a common mask are respectively provided with a unidirectional valve, wherein, one end is connected with an air supplying pipeline, and the other end is opened, so that the exhaled air from patients can not be inhaled repeatedly, the inhaled nitrous oxide (N2O) can be kept constant, and the anesthesia effect can be guaranteed.

Description

Do not have and repeat to suck laughing gas (N 2O) mask device

This utility model relates to the dentistry aid that combines with anesthesia outfit.

Laughing gas (N ₂O) suction can produce the good sedative effect; make level of consciousness produce slight inhibition; the patient keeps autonomous respiration and physical stimulation and sound instruction is made the ability of replying simultaneously; guarding reflex exists; and keep linguistic with the doctor all along and get in touch, be particularly suitable for the calmness of oral cavity outpatient service extraction.Because domestic and international N ₂O suction apparatus more complicated and costliness, most of hospital can't carry out except that domestic minority hospital.

This utility model does not have and repeats to suck laughing gas (N ₂O) mask device is simply suitable, economical, only at the Y tube two ends of common face shield unidirectional flap valve is installed, and an end and air duct join, and the other end is open, can make patient expired gas not repeat to suck, and it is constant to keep sucking laughing gas, has guaranteed anaesthetic effect.

Advantage of the present utility model:

1. unidirectional flap valve is installed at the Y tube two ends on face shield, and breath does not repeat to suck and can keep sucking laughing gas (N ₂O) constant concentration, respiratory time is short, and anaesthetic effect is sure.

2. because nothing repeats to suck laughing gas (N ₂O), avoided the use of sodica calx jar and the use of attached anesthesia outfit, only can determine output, but should before system uses for the first time, adjust flow meter with locking N with gas analyser with two flow meters ₂O and O ₂Concentration is in order to avoid cause N ₂O excessive concentration or low excessively.

The purpose of this utility model realizes in the following manner:

Do not have and repeat to suck laughing gas (N ₂O) mask device, by face shield, Y tube, two unidirectional flap valves, support and rubber tissue are formed.

Elaborate below in conjunction with accompanying drawing:

Fig. 1 does not repeat to suck laughing gas (N for having ₂O) general illustration of mask device.

Fig. 2 is the front elevation of rubber tissue, support.

Fig. 3 is rubber tissue and support side schematic view.

Insert on face shield 1 mouth of pipe lower end of Y tube 2 among Fig. 1, and two unidirectional flap valves 3,4 are arranged respectively in the pipeline of last two ends, and the structure of flap valve 3,4 is identical, and the ventilation direction is opposite.

6 is rubber tissue among Fig. 2, and 5 is support.The annulus periphery of support 5 is connected as one with inner-walls of duct, and annulus central authorities have a support bar to play 6 effects of support rubber tissue, and support 5 is made for the one-shot forming mold with Y tube.

Be stained with rubber tissue 6 on Fig. 3 medium-height trestle 5, an end of rubber tissue 6 on support, other end activity, support 5 consists of unidirectional flap valve 3 or 4 with rubber tissue 6.

During operation, at N ₂O sucks in the calmness, at first uses the mask oxygen-inspiration denitrification, changes to inhale N ₂O (N ₂O50% and O ₂50%) mist (total flow is 5-8L/min) to patient's toe end and finger brings out existing numb sensation and the whole body adstante febre stops to suck, and the nervous anxiety sense of patient's this moment disappears, and emotion is loosened cooperation, carries out routine behind the removal face shield and pulls out

The operation of tooth art.Sucking N ₂Conventional HR, BP and the SPO of monitoring among the O.

Claims

1. do not have and repeat to suck laughing gas (N ₂O) mask device, form by face shield, Y tube, two unidirectional flap valves, support and rubber tissues, it is characterized in that: insert on face shield (1) mouth of pipe lower end of Y tube (2), two unidirectional flap valves (3), (4) are arranged respectively in the pipeline of last two ends, the structure of flap valve (3), (4) is identical, and the ventilation direction is opposite.

2. nothing according to claim 1 repeats to suck laughing gas (N ₂O) mask device, it is characterized in that: flap valve (3) or (4) are made up of two parts: support (5) and rubber tissue (6), the annulus periphery of support (5) is connected as one with inner-walls of duct, annulus central authorities are a support bar, be stained with rubber tissue (6) on the support (5), one end of rubber tissue (6) on support, other end activity.