WO1989004189A1 - Tracheal tube for emergency mouth-to-mouth respiration - Google Patents

Abstract

A tube which helps overcome aversion to contact during mouth-to-mouth respiration with an unconscious person and which prevents mutual contamination with contagious disease has a bent extension reinforced to prevent sectioning by the teeth and to prevent the tongue of the injured person from falling backward and blocking the respiratory passages. A covering plate covers the mouth of the person receiving the mouth-to-mouth respiration and at the same time prevents direct mouth-to-mouth contact. A standardized cone on the side of the person applying the mouth-to-mouth respiration enables the mouth piece or the respiration bag to be adapted to any desired position. A hydrophobic filter welded into the mouth piece retains blood and saliva on both sides during the mouth-to-mouth respiration, while permitting the unrestricted passage of air.

Description

 description

Ventilation tube for emergency ventilation

The invention relates to a tube that has been designed for emergency ventilation of the unconscious. Unconscious people, for example as a result of accidents, can often only be saved by immediate mouth-to-mouth ventilation. Although the technology of this emergency ventilation is taught in the first aid courses, its application often fails on the one hand due to the so-called disgust threshold, which the willingness to help cannot overcome, and on the other hand due to the fear of getting through Infect bleeding from the mouth or contact with their saliva (AIDS, hepatitis, TB). The same risk of infection exists for the injured person through saliva or blood transferred with the donor's breathing air. Attempts are being made to counter this with various types of ventilation aids. Thus, cloths and masks are used which cover the mouth area of the unconscious and prevent direct mouth-to-mouth contact. A disadvantage of these aids is that they cannot be avoided that the unconscious person's tongue falls back during the ventilation process and closes the trachea. Moreover, the almost unhindered exchange of blood and saliva and the associated risk of infection are not eliminated. Known tubes may be able to provide emergency ventilation without risk of suffocation for the injured. Tubes with disposable valves (lip valves) are also known, but they only prevent the injured person's blood and spittle from getting into the donor's mouth on one side only. This does not eliminate the risk of infection for the donor. The invention is based on the object of overcoming the disgust threshold by avoiding direct mouth-to-mouth contact, holding back the tongue of the unconscious during the ventilation process and thus keeping the trachea free, to prevent breathing air from the Dispenser uselessly escapes and that during the ventilation period without impairing the permeability, blood and saliva are equally alike in both directions. rather be held back. Furthermore, it should be achieved that resuscitation ventilation bags can be continued without interruption without changing the tube.

This aim is achieved according to the invention by the tube being made of thermoplastic rubber-plastic with a curved attachment which is pushed into the mouth of the unconscious and holds back the tongue. The attachment is provided with an anatomically shaped cover plate which closes the mouth of the respirator and at the same time prevents the attachment from being injured too deeply into the mouth of the respirator. The tube is provided with a standard cone on the dispenser side, to which commercially available resuscitators can be adapted. A mouthpiece is placed on the standard cone for ventilation by the donor. A hydrophobic filter using ultrasound welding technology is firmly incorporated into the mouthpiece, which has blood and saliva on both sides for at least five minutes at a breath pressure. p of five millibars and a humidity of 100%.

An embodiment with its various parts is shown in cross section (drawings 1, 2 and 3) and longitudinal section (drawings 4 and 5).

The tube consists of the curved attachment (drawings 2 and 4), which is pushed into the mouth of the unconscious, as well as the adaptable mouthpiece (drawing 5). It has an anatomically shaped cover plate for the closure of the tube on the mouth of the injured person (drawings 1, 2 and 4). The tube has a 15 mm standard cone on the dispenser side (drawings 2 and 4) for the connection of the mouthpiece or commercially available respiratory bags. The mouthpiece (drawing 5) is oval in shape on the dispenser side (drawing 3); it can be pushed onto the cone in any position. The curved attachment of the tube is rounded off in the distal area (drawing 2) in order to avoid injuries in the oral cavity of the respiratory receiver. 75 It is reinforced in the proximal area ((drawings 1 and 4) to prevent the tube from being bitten through by the respirator.

5 shows the hydrophobic filter incorporated into the mouthpiece.

Claims

Claims 1. Emergency ventilation tube made of thermoplastic rubber, characterized in that it has a curved attachment that is pushed into the mouth of the patient to be ventilated and an adaptable mouthpiece. 2. Emergency ventilation tube according to claim 1, gekennzeich¬ net by an ananto-shaped cover plate for the closure of the tube on the mouth of the patient to be ventilated. 3. Emergency ventilation tube according to claim 1, characterized by a 15 mm standard cone on the dispenser side for the connection of conventional respiratory bags or the mouthpiece. 4. emergency ventilation tube according to claim 1, gekennzeich¬ net in that the mouthpiece on the dispenser side is oval and on the other side has a 15 mm Norm¬ cone, which can be attached to the tube in any position . 5. emergency ventilation tube according to claim 1, gekennzeich¬ net in that it is rounded in the distal region. 6. emergency ventilation tube according to claim 1, gekennzeich¬ net characterized in that it ^" is reinforced in the proximal area. 7. emergency ventilation tube according to claim 1, gekennzeich¬ net in that a hydrophobic filter with a diameter of 28 mm is firmly welded into the mouthpiece, the blood and saliva on both sides with unimpeded permeability of the breathing air for a duration of at least five minutes at a breathing pressure p of five millibars and a humidity of 100? ό.