RU2238684C1 - Device for restoring tracheal breathing - Google Patents

Abstract

FIELD: medical engineering.

SUBSTANCE: device has external tube having shield on one of the ends. The tube is bendable with arc-shaped conductor and is shaped as flat spring. Spring coils are brought in contact and fixed on diametrically opposite segments of lateral surfaces with polyamide string to exclude spontaneous untwisting and fastening the external tube in elastic state.

EFFECT: avoided decubitus ulcers and irritation in mucous membrane areas under contact.

2 cl, 1 dwg

Description

The invention relates to medicine, namely to otorhinolaryngology.

A device for restoring tracheal breathing (tracheotomy cannula) (1, 2), consisting of an outer tube, an inner tube of a smaller diameter and a shield at one end.

The disadvantages of this device are low elasticity, constant bending geometry, two-component design.

A device for restoring tracheal breathing is proposed, consisting of an outer tube and a shield at one end, characterized in that the outer tube has the shape of a flat spring that passes into the endotracheal and paratracheal tubes, bent to the primary arcuate shape and fixed in an elastic position in diametrically opposite sections side surfaces with a polyamide string.

The drawing shows a flat spring 1, the shield 2, intratracheal hollow tube 3, tape 4, paratracheal hollow tube 5, polyamide string 6.

The device consists of a flat spring 1 (see drawing) made of elastic plastic coated on the side of the lumen of the tube with a thin layer of fluoroplastic. The average width of the tape 4 of the flat spring 1 from both ends is 3-5 mm, and in the middle part there are two alternating sections 5-6 mm wide and 2 sections 2-3 mm wide; the wall thickness of the tape is 1-1.5 mm. The outer primary diameter of the tube is 5-10 mm. The coils of the flat spring are brought into close contact with each other, and at both ends they pass into the endotracheal hollow tube 3 and the paratracheal hollow tube 5 connected to the shield 2. To prevent spontaneous unwinding of the flat spring 1 during further use, they are fixed in the installed position by a polyamide string 6 with a diameter of 0 , 2-0.3 mm through the through holes in the outer surface of the intratracheal hollow tube 3, in the side diametrically opposite surfaces of each coil and paratracheal hollow tube 5. Polyamide ke string 6 carried at both ends in the direction of the intratracheal tube 3 through the windings to the paratracheal hollow tube 5 and is fixed at the flap 2.

The device is used as follows. A rigid arcuate conductor is introduced into the device’s lumen, giving a flat spring 1 a curved shape. During a tracheotomy, the resulting complex is injected with an intratracheal hollow tube into the trachea until the flap 2 contacts the outer surface of the neck. The arcuate conductor is removed. The flat spring assumes a comfortable adequate position in the lumen of the trachea. When coughing, while swallowing, when trying to exhale through the larynx, the device moves: it passes air through the inter-turn spaces, changes the configuration and position of the turns, thereby ensuring the prevention of pressure sores. The device is intended for use in the rehabilitation period for patients undergoing sanitizing, reconstructive operations and resection of the larynx with preserved airway clearance, as well as in the treatment of patients with acute and chronic deforming inflammatory processes of the upper respiratory tract.

Example 1. The clinic of otorhinolaryngology was admitted to a patient М-s, 12 years old with a diagnosis of Primary acute laryngotraechitis, option 1, continuous course, stage of decompensation. In connection with the serious condition of the patient, a lower tracheostomy was performed and the described device was installed. During treatment (2 weeks), respiratory and voice-forming functions were fully restored. The device did not cause pressure sores and significant irritation in the contact areas of the mucous membrane.

Sources of information

1. Undrits V.F. Acute stenosis of the larynx. - M .: Medgiz, 1950, p. 51.

2. Preobrazhensky Yu.B. Emergency care for injuries to the ear, throat and nose. - M .: Medgiz, 1959, p. 88.

Claims (2)

1. Device for restoring tracheal breathing, consisting of an outer tube with a shield at one end, characterized in that the outer tube is made to bend an arc-shaped conductor and has the form of a flat spring, the turns of which are brought into contact and fixed in diametrically opposite sections of the side surfaces of the polyamide a string to prevent spontaneous unwinding and to secure the outer tube in an elastic position. 2. The device according to claim 1, characterized in that the flat spring is made of elastic plastic and is coated with a fluoroplastic layer from the side of the tube lumen.