DE10025203A1 - Pair of nose spectacles comprises basic body, seal, gas outlets, check valves, control unit for gas flow - Google Patents

Abstract

The nose-spectacles comprise a basic body (1) with sealing elements (5) on the gas-outlets (2) which contain check valves (4). The sealing action of the sealing elements is controllable by a control unit producing the gas-flow of the gas dispensed in relation to the breathing phase. The gas flow differs between breathing-in when gas flow is greater than with breathing-out.

Description

The invention relates to nasal cannula for the administration of a breathable gas.

Patients with chronic breathing difficulties (e.g. asthma and COPD (chronic Chronic Obstructive Pulmonary Disease)) through a generally portable oxygen dispenser in the oxygen supplier body support. Such patients are called spontaneously breathing patients in contrast to patients intubated to a beat in the clinic are connected. Spontaneously breathing patients receive this play an additional oxygen donation (LOT = long-term oxygen therapy) or one Breathing support (via CPAP = continuous positive airways pressure). Administered are the gases either through a so-called nasal cannula or nasal tube (Na sal application; in the simplest case, a gas supply hose, the opening of which underneath the patient's nostrils) or by breath mask (especially with CPAP).

A device for delivering breathing gas or oxygen to a patient is in DE 43 09 923 A1 described.

When using conventional nasal cannula, the loss of the metered gas is in usually large because there is no seal between the dosing nozzles and the nasal cannula the nostrils is present. A large part of the gas to be dosed soaks in the ambient air instead of getting into the lungs.

The invention has for its object an optimized nasal cannula ready to stel len, where the problems mentioned do not occur.

The problem was solved by nasal cannula with the mentioned in claim 1 Characteristics.  

The nasal cannula seals automatically for the duration of a gas dosing phase when in use a gas metering device from the transition to the nose. By sealing the Na senloch dosing nozzle (gas outlet), the loss of the dosing gas can be reduced the. This measure also increases the ventilation pressure and thereby the effect of the gas. Sealing is based on the basic principle that the sealing device the pressure of a gas, preferably from the metered Gas, exploits and so, a seal is achieved.

With a device that inflates during inspiration, the nose Partially or completely sealed interior to the atmosphere. This is done before partial through utilization of the dosing gas supplied during the inspiration phase ses. By controlling the length of the gas metering pulse, the application remains sometimes less long (part of the inspiration phase) or over the entire Inspira tion phase in an inflated position. Introducing one Non-return valve (e.g. through one-sided bulged and slotted plastic covers ckung) prevents the application parts from swelling during the expiratory phase se.

Surprisingly, it was found that in diseases in which there was a partial The alveoli collapse (fibrosis) leads to positive oxygen saturation The increase in breathing comes when the exhalation (expiration phase) has an increased resistance was opposed. In intensive ventilation technology (artificial ventilation) is known as peep (positive end expiratory pressure). Hence the nose glasses advantageously designed so that a gas volume even during expiration flow on the application part, in particular the outlets of the nasal cannula works. This gas volume flow during expiration is advantageously less than during the inspiration phase, so that expiration (exhalation) generally counteracts against a gas pressure that causes increased resistance when exhaling gently. The gas pressure during expiration is generally fixed or is adjustable or adjustable.  

Another object of the invention is therefore nasal cannula with sealing elements, the sealing effect is controllable.

The disadvantage of using standard nasal cannula that no or a very low ventilation pressure arises, but for many diseases (especially in Diseases in which partial or total collapse of the alveoli z. B. Fibrosis) would have a beneficial influence on healing or relief, is thus overcome with the nasal cannula according to the invention.

The nasal cannula is particularly suitable for the treatment of COPD patients.

The invention is explained with reference to the drawing.

Fig. 1 shows the view of an embodiment of the nasal cannula

The nasal cannula shown in FIG. 1 contains the parts base body 1 , gas outlet pipes 2 with gas outlet opening 3 , sealing body 5 and check valves 4 . The base body 1 is usually made of plastic. The base body is a hollow body through the cavity of which the gas to be metered is passed. The inner space of the sealing body 5 advantageously has a connection to the gas-carrying Höhlkör by 1 (not shown), so that the sealing body 5 is inflated during gas metering.

Reference list

1

Basic body

2

Gas outlet pipe

3rd

Gas outlet opening

4

Check valves

5

Sealing body

Claims (5)

1. nasal cannula containing a base body ( 1 ) with sealing elements ( 5 ) on the Ga sauslaßen ( 2 ). 2. nasal cannula according to claim 1, characterized in that the sealing effect of the sealing elements ( 5 ) is controllable. 3. nasal cannula according to claim 1 or 2, characterized in that the gas outlets ( 2 ) contain check valves ( 4 ). 4. nasal cannula according to one of claims 1 to 3, characterized in that the nasal cannula is connected to a control unit that a gas flow of the metered gas generated depending on the breathing phase. 5. nasal cannula according to claim 4, characterized in that the gas flow differs in inspiration and expiration, gas flow in expiration that is less than the gas flow during inspiration.