DE202012003723U1 - Moist heat exchanger for the breathing air - Google Patents

Abstract

Damp-heat exchange device for breathing air, characterized in that a filter foam (1) with an air-impermeable surface lamination (2) guides the airway (5) laterally through a central breathing space (19) and the attachment by means of an adhesive disc (12) or short cone ( 11) on a tracheostomy tube (10) or on the trachea (9).

Description

The invention is a moist heat exchange device for placement on tracheostomy tubes or other tracheal tubes with and without universal approach.

After a larynx removal increased respiratory problems may occur because due to the broken connection between the nose and lungs eliminates the functions of the nose. The breathing air is no longer filtered, warmed and moistened.

This leads to irritation of the bronchial mucosa, excessive secretion production and thereby to increased cough.

In addition to heating, humidifying and filtering respiratory air, natural nasal breathing also provides respiratory resistance, which is important for oxygenation in the blood. The lower resistance after laryngeal removal lowers the oxygen concentration in the blood. For the person concerned, this shows in the form of fatigue, depression and diminished performance.

The humid heat exchangers are intended for patients with spontaneous breathing and are attached to the universal cone of the tracheostomy tube or a tube and serve for pulmonary rehabilitation.

The moisture-heat exchangers remove moisture and heat from the exhaled air of the patient and return them to the patient via the inhaled air.

This filters the respiratory air, moisturizes it and prevents particles from entering the respiratory tract of the patient.

There are known a number of devices that act as a wet-heat exchanger and as a filter for particles.

In the PCT WO 95/17138 a tracheostomy filter with a spring valve is described. The application with a universal cone is not possible.

in the U.S. Patent 5,738,095 a same device will be described.

The U.S. Patent 5,259,378 offers a filter that is also incompatible with the universal cone of a tracheostomy tube.

The U.S. Patent 4,971,054 offers a filter that can be connected to a universal cone, but redirects air flow based on shower protection.

In the PCT WO 98/33543 a filter with adhesive film is described.

In general, it has been found that the known solutions for humid heat exchange for respiratory air in tracheal cannula users have shortcomings in connection with the universal cone, with respect to air flow guidance and large construction.

Accordingly, the invention has for its object to provide a humid heat exchange device for easy connection with a low profile, lateral breathing flow, applicable for tracheal cannula plates and universal zones with safety cover with high comfort.

This object is achieved with a device which is designed as a moist heat exchanger in a round, square or oval foam form, which allows the connection with a universal cone or adhesive film with a tracheal cannula shield and guaranteed by surface lamination with an air-impermeable film, the lateral respiratory flow.

The inserted in the center of the foam form sleeve is closed with a sticky disk so that dissolves in a cough this disc.

• – Schaumstoffscheibe,
• – Hülse,
• – Klebescheibe.

The device according to the invention basically consists of the following components:

• - foam disc,
• Sleeve,
• - Adhesive disc.

The foam in round, square or oval shape is porous and the surface is coated with a film.

An inserted sleeve with air gaps and clamping ring makes it possible to attach it to a universal cone.

A sleeve with air gaps and an adhesive film on the flange allow the detachable connection with a flat cannula shield or on a cannula ring.

The sleeve used in each case has air gaps or many lateral slits which guide the breath laterally from the foam and initiate.

By using the sleeve in the foam low height is achieved. By laminating the colored foam with a transparent film, the foam can be adapted in the flange color.

A second variant consists in that the foam laminated on the surface with a transparent foil only has an adhesive ring which allows connection to a tracheal cannula. As a result, the lateral inhalation and exhalation as well as the low height are also guaranteed.

A central sticker on the surface of the HME is equipped with an adhesive force, which dissolves in a coughing fit.

The glued HME can be detached at any time and replaced by a new HME.

The invention is explained in more detail by the attached figures:
From these show:

1 : a wet-heat exchanger with sleeve and short cone

2 . 3 . 4 : a wet-heat exchanger in various forms

5 : a wet-heat exchanger with adhesive ring.

LIST OF REFERENCE NUMBERS

1

filter foam

2

lamination

3

safety flap

4

attachment

5

airway

6

air gap

7

filter height

8th

Trachealkanülenschild

9

trachea

10

tracheostomy

11

short cone

12

adhesive disk

13

anfasser

14

protector

15

lock

16

Innenkanülenflansch

17

shell

18

height

19

breathing space

The device according to the invention. 1 consists of an open-pored filter foam ( 1 ), which with a transparent lining ( 2 ) is made on the upper and lower surfaces.

In the center of the filter foam ( 1 ) is a cylindrical recess into which the sleeve ( 17 ) with air gaps ( 6 ) is inserted.

The sleeve ( 17 ) is with a short cone ( 11 ), which when plugged into the sleeve ( 17 ), until the locking ( 15 ), the air gaps ( 6 ) does not close. The short cone ( 11 ) is placed on the tracheostomy tube ( 10 ) and on the tracheal cannula shield ( 8th ) attached. The tracheostomy tube ( 10 ) is in the trachea ( 9 ). The air flow or respiratory tract ( 5 ) goes from the trachea ( 9 ) laterally through the filter foam ( 1 ).

A cough in the center is a safety flap ( 3 ) with fixings ( 4 ) so that it opens.

Due to the construction of the low filter height ( 7 ) you reach a low height ( 18 ), which improves the comfort for the patient.

The 2 . 3 . 4 show a round, an angular and an oval shape of the filter foam ( 1 ) on.

The 5 consists of a filter foam ( 1 ), which on both surfaces with a transparent film, ie with a lamination ( 2 ) is provided.

At the center, a cylindrical breathing space ( 19 ) created by means of safety flap ( 3 ) is closed.

In case of a cough, the flap opens ( 3 ).

Furthermore, when opening the flap ( 3 ) the respiratory space ( 19 ) and the interior of the tracheostomy tube ( 10 ) are cleaned.

The filter foam ( 1 ) is with a sticky disk ( 12 ) by removing the protective film ( 14 ) by means of handles ( 13 ) on the tracheostomy tube ( 10 ) and on the inner cannula flange ( 16 ) can be releasably attached.

The filter foam ( 1 ) can be renewed at any time.

The airway ( 5 ) goes through the trachea ( 9 ), the tracheostomy tube ( 10 ), the breathing space ( 19 ) laterally through the filter foam ( 1 ).

A low construction height ( 18 ) is achieved and the wearing comfort for the patient is increased. The filter foam ( 1 ) can have different breathing resistances through different pores.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 95/17138 [0009]
• US 5738095 [0010]
• US 5259378 [0011]
• US 4971054 [0012]
• WO 98/33543 [0013]

Claims (13)

Moist heat exchange device for respiratory air, characterized in that a filter foam ( 1 ) with an impermeable surface lining ( 2 ) through a centric breathing space ( 19 ) the airway ( 5 ) leads laterally and the attachment by means of adhesive disc ( 12 ) or short cone ( 11 ) on a tracheostomy tube ( 10 ) or on the trachea ( 9 ). Moist heat-exchange device for breathing air according to claim 1, characterized in that a sleeve ( 17 ) with air gaps ( 6 ) is trained. Moist heat-exchange device for breathing air according to claim 1, characterized in that a short cone ( 11 ) the air gaps ( 6 ) of the sleeve ( 17 ) does not close. Moist heat-exchange device for breathing air according to claim 1, characterized in that the filter foam ( 1 ) has a round, angular or oval shape. Moist heat-exchange device for breathing air according to claim 1, characterized in that the filter foam ( 1 ) is interchangeable. Moist heat-exchange device for breathing air according to claim 1, characterized in that the filter foam ( 1 ) a safety flap ( 3 ) owns. Moist heat-exchange device for breathing air according to claim 1, characterized in that the attachment by means of adhesive disc ( 12 ) only on the trachea ( 9 ) he follows. Moist heat-exchange device for breathing air according to claim 1, characterized in that the filter height ( 7 ) is a maximum of 10 mm. Moist heat exchanger for breathing air according to claim 1, characterized in that the height ( 18 ) stays below 15 mm. Moist heat-exchange device for breathing air according to claim 1, characterized in that the filter foam ( 1 ) is impregnated with antimicrobial agents. Moist heat-exchange device for breathing air according to claim 1, characterized in that the filter foam ( 1 ) is porous. Moist heat-exchange device for breathing air according to claim 1, characterized in that the lamination ( 2 ) is transparent. Moist heat-exchange device for breathing air according to claim 1, characterized in that the filter foam ( 1 ) is colored.

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