RU2219965C2 - Sealing cuff for endotracheal tube - Google Patents

Abstract

FIELD: medicine, mainly devices for injection medicines in the organism, in particular, cuffs to endotracheal, tracheostomic and endobronchial tubes. SUBSTANCE: the device has a pneumatic section, catheter of the pneumatic section, perforated envelope of the pneumatic section, and a catheter of the perforated envelope. The perforated envelope additionally envelops the section of the endotracheal tube adjoining the pneumatic section opposite the proximal end. EFFECT: reduced level of pathophysiological changes of the organism as reply reactions to tracheal intubation. 1 dwg

Description

 The invention relates to medicine, mainly to devices and devices for administering drugs to the body, in particular to cuffs of endotracheal, tracheostomy and endobronchial tubes.

 Famous tube seal cuff F. Trendelenburg (Difficulties in tracheal intubation. / Transl. From English. M.N. Selezneva; Ed. By I.P. Lato, M. Roseen. - M .: Medicine, 1989, 304 p. pg. 89-90).

 The use of the F. Trendelenburg sealing cuff for tracheal intubation causes pathophysiological responses of the organism.

 Also known is the sealing cuff of the Dorrans tube (Difficulties in tracheal intubation. / Transl. From English by M.N. Seleznev; Ed. By I.P. Lato, M. Roseen. M .: Medicine, 1989. 304 p., P. 90).

 However, the use of the Dorrans tube cuff for tracheal intubation also causes pathophysiological responses from the body.

 Also known is the sealing cuff of the endotracheal tube of Lants made in the form of an inflatable section with a catheter to inflate it (Difficulties in tracheal intubation. / Transl. From English by M.N. Seleznev; edited by I.P. Lato, M. Rosen. M .: Medicine, 1989, 304 p., Pp. 97-99).

 The use of the sealing cuff of the endotracheal lanz tube during tracheal intubation can slightly reduce the level of pathophysiological reactions of the body due to the fact that the lanz tube is equipped with a regulatory mechanism that prevents excessive pressure increase and decrease both in the cuff and on the tracheal wall.

 According to its functional purpose, technical nature and technical result achieved, the closest cuff for the endotracheal tube is the closest cuff for the endotracheal tube containing the device for irrigation of drugs, made in the form of a perforated membrane and a catheter for supplying drugs to the perforated membrane (US patent 5146916 A, A 61 M 16/04, 09/15/1992).

 However, the use of an inflatable cuff of the endotracheal tube containing a device for irrigation with drugs provides a very slight decrease in the level of pathophysiological reactions of the body.

 Due to the fact that pathophysiological changes during tracheal intubation with this tube continue to remain at a relatively high level and are of significant clinical value especially for people with concomitant diseases, the problem of further reducing pathophysiological reactions is one of the most important problems of modern medicine.

 The problem to which the claimed invention is directed, is the creation of such a sealing cuff of the endotracheal tube, which will significantly reduce the level of pathophysiological changes in the body as responses to tracheal intubation.

 The task is implemented by the claimed sealing cuff of V.A. Pervak for an endotracheal tube containing an inflatable section, a perforated membrane covering the inflatable section and adjacent to it from the opposite proximal end section of the endotracheal tube, an inflatable section catheter and a perforated shell catheter.

Common essential features of the claimed sealing cuff of V. A. Pervak for the endotracheal tube and its closest analogue (prototype) are:
- sealing cuff for endotracheal tube;
- inflatable section;
- perforated shell covering the inflatable section;
- catheter of the inflatable section,
- perforated catheter.

An essential feature distinguishing the claimed sealing cuff of V. A. Pervak for the endotracheal tube from its closest analogue (prototype) and providing, together with the common essential features inherent in both sealing cuffs, is the achievement of the claimed technical result (a significant reduction in the level of pathophysiological changes in the body as a response reactions to tracheal intubation) in all cases to which the requested amount of legal protection applies, is a sign of:
- the perforated shell further extends to the portion of the endotracheal tube adjacent to the inflatable section from the opposite proximal end.

 The supply of the claimed sealant cuff of V.A. Pervak for the endotracheal tube with a perforated sheath and a perforated sheath catheter allows the supply of drugs through the catheter to the perforated sheath without reducing or without significantly reducing the pressure in the inflatable section, which ensures the continuity of the process of mechanical ventilation without depressurization of the circuit " apparatus-patient "and ultimately can significantly reduce the level of pathophysiological responses from the outside body.

 Coverage of the inflatable section with the perforated shell and the endotracheal tube section adjacent to it from the opposite proximal end ensures the supply of drugs in the region of structures located above the glottis, and can significantly reduce the level of pathophysiological changes in the body as responses to tracheal intubation from these structures (tongue root) , arches of tonsils, tongue of the soft palate, pharyngeal wall, etc.). Thus, the use of the claimed sealing cuff V.A. Pervak for the endotracheal tube can significantly reduce the level of pathophysiological changes in the body as responses to tracheal intubation.

 The drawing schematically depicts the claimed sealing cuff of V. A. Pervak for the endotracheal tube.

 The sealing cuff 1 of the endotracheal tube 2 contains an inflatable section 3, a catheter of the inflatable section 4, a perforated shell 5 and a catheter of the perforated shell 6.

 Perforated shell 5 covers the inflatable section 3 and adjacent to it from the opposite proximal end 7 section 8 of the endotracheal tube.

 Before using the endotracheal tube 2 with the claimed sealing cuff 1, the external condition and tightness of the inflatable section 3 are checked. At the end of the test with positive results, the endotracheal tube is inserted into the trachea with the proximal end 7 so that the inflatable section 3 is proximal to the vocal cords and adjacent to the inflatable section 3 section 8 of the endotracheal tube would be distal to the vocal cords.

 The inflatable section 3 is inflated using a catheter 4. On the catheter 6, drugs are supplied to the space between the proximal endotracheal tube and the inflatable section 3 on the one hand and the perforated shell 5 on the other hand, which may contain local anesthetics, mucosal reparators, antibiotics , antiseptics, hormones, ointment base and other components.

 Medicinal products supplied via catheter 6 penetrate the perforated membrane 5 and come into contact with the mucous membrane of the larynx, trachea, glottis, pharynx and root of the tongue and provide a therapeutic effect.

 The supply of drugs to the perforated shell of the sealing cuff of V.A. Pervak for the endotracheal tube is carried out both in manual and automatic modes, and the efficiency of using the claimed cuff in automatic mode will be significantly higher.

 The use of the claimed sealing cuff of V.A. Pervak provides relief of laryngeal pharyngeal reflexes that cause hemodynamic and bronchoconstrictor reactions, prevention and treatment of infectious lesions in the area of contact of the inflatable section with the mucosa, stimulation of the regenerative properties of the tracheal epithelium, prevention and treatment of aseptic inflammatory reactions, creates real the possibility of prevention or a sharp weakening of reflex reactions that occur with irritation of the trachea with an endotracheal tube ( oral anesthetics), prevents or dramatically weakens the possible development of tracheitis, both transient lungs (in anesthesiology) and severe purulent-necrotic (with prolonged mechanical ventilation during intensive therapy), and eliminates tracheostomy currently inevitable with prolonged mechanical ventilation or at least postpones its implementation.

 All of the above allows us to conclude that the use of the claimed sealing cuff of V.A. Pervak can significantly reduce the level of pathophysiological changes in the body as responses to tracheal intubation, i.e., solve the problem and ensure the achievement of the claimed technical result.

 The claimed sealing cuff of V.A. Pervak can be successfully used on both endotracheal and tracheostomy and endobronchial tubes.

Claims (1)

An endotracheal tube sealing cuff comprising an inflatable section, an inflatable section catheter, a perforated membrane covering the inflatable section, and a perforated membrane catheter, characterized in that the perforated membrane further covers an endotracheal tube section adjacent to the inflatable section from the opposite proximal end.