Method of ventilation
The invention relates to experimental medicine and can be used for ventilation in small laboratory animals. In both the pleural cavity through an incision enter the drains of the elastic tubes, seal them in the region of passage through the tissues of the chest wall by the imposition of a purse-string sutures, drains attach corrugated elastic pears in their compressed state, and then by simultaneous manual creation pears alternating positive and negative pressure in the cavities of the pleura carry out inhaling and exhaling. This invention helps to provide ventilation with adjustable tidal volume. 1 Il. The invention relates to experimental medicine. Is used to perform artificial ventilation of the lungs in small laboratory animals (cats, rats, intubation of the trachea is almost impossible.Artificial lung ventilation is the primary method of maintaining respiratory function both in the clinic and in the experiment. It is achieved by forced injection of air or gas mixture into the respiratory tract in the inhalation phase and passive exhalation.As Arago by mechanical stretching and compression of the chest.Negative aspect of this method is the inability to increase tidal volume.Closest to the claimed its technical solution is a method, implemented by an external apparatus artificial respiration . In this way, by changing the pressure in the hermetically surrounding the chest of the cylinder, there is a change in its volume, due to what is inhale and exhale.This method has the same drawback as the analogue of the inability to adjust the tidal volume. In addition, there are technical difficulties in ensuring the tightness between the chamber walls and the body of the object.The invention is expressed as a series of distinctive features is sufficient to achieve a new technical result, namely, providing ventilation adjustable respiratory volume. This entity is that, in both the pleural cavity through an incision enter the drains of the elastic tubes, seal them in the region of passage through the tissues of the chest wall by the imposition of a purse-string sutures, drains connected corrugated elastic pears in their compressed state, after which, by simultaneous manual creation pears AC (PI lungs under item 1, characterized in that depending on the height-weight data of the animal required tidal volume select the size of the corrugated elastic pears.The layout of the drains in the pleural cavities (with attached pears) are depicted in the accompanying diagram, where: 1. The trachea, main bronchi.2. Light.3. The cavity of the pleura.4. Drainages.5. The pear.The method is as follows.Under aseptic conditions, under local anesthesia or under intravenous anesthesia, level 2-7 intercostal space on the anterior axillary line an incision of the skin and underlying tissue with a length sufficient for insertion of pleural drainage. Enter the drainage with collaboraie easy. The injection seal a purse-string suture. The procedure is repeated with the other hand.The drains attached corrugated elastic pears in a compressed state. When smoothing pears, due to its elastic properties, is an active suction of air from the pleural cavity, resulting in cracking down lung tissue and inhale. When manual synchronous compression pears, due to the discharge of air in the pleural cavity and colaborare lung exhalation occurs.Naya medicine. Petrozavodsk: Publisher Petrozavodskogo University. 1996, 488 S.3. Ibid, S. I
ClaimsThe method of ventilation, including the creation of a variable pressure in the cavity of the pleura, characterized in that both the pleural cavity through an incision enter the drains of the elastic tubes, seal them in the region of passage through the tissues of the chest wall by the imposition of a purse-string sutures, drains attach corrugated elastic pears in their compressed state, and then by simultaneous manual creation pears alternating positive and negative pressure in the cavities of the pleura carry out inhaling and exhaling.
FIELD: medical engineering.
SUBSTANCE: device has catheter having the first end open and additional tubes. The catheter lumen is 2.0-5.0 mm and wall thickness is 1.0-2.5 mm as large. The catheter has cup seal mounted on lateral surface near the first open end, the second rounded dead end and lateral openings for attaching additional tubes near the second dead end. The additional tubes are manufactured as additional ureteral drains. Lumen space near the first end and lumen space near the lateral openings located aside of the middle portion of catheter are manufactured to receive adapters for connecting a system for collecting urine. Middle portion of the catheter is curved as spiral coil having external diameter not more than 7 times as large as external catheter diameter. It is strengthened with thread brought through catheter lumen, the thread having ends taken out through catheter wall under the cup seal. Lateral draining openings equal or unequal to each other in size equally or unequally spaced on the internal coil side.
EFFECT: improved device interaction with surrounding tissues.
3 cl, 2 dwg
SUBSTANCE: method involves applying intracoronary phosphocreatine introduction into infarction-responsible artery when carrying out coronary angioplasty. Phosphocreatine solution is injected after reperfusing the infarction-responsible artery at constant volume rate of 0.1-4 ml/s with introduced phosphocreatine dose being equal to 0.5-4 g.
EFFECT: reduced myocardium necrosis zone; prevented cardiac insufficiency and cardiac rhythm disorders.
FIELD: medical equipment.
SUBSTANCE: inflatable balloon can be used for making catheters which have carrier axial polymer tube with inflatable working medium through hole in wall of tube by balloon dispose at one end and with valve unit for keeping working medium, disposed at the other end. Device is intended for curing detachment of retina by means of blocking rupture of retina under effect of wave of impression generated by inflated balloon. Inflatable balloon has end tubular taps for fastening to carrier axial tube and central inflatable part, which can take shape of sphere, or ellipse either cylinder of the balloon. Walls of balloon are made of three layers of internal and external layers of silicon rubber to have intermediate layer of polyorganosiloxane. Walls are made of three layers of internal and external layers of silicon rubber to have intermediate layer of polyorganosiloxane. According to the second version, tubular sections of silicon rubber are disposed concentrically onto surface of ends of inflatable part; the sections are integrated with the surface of tube. The sections are made for widening at balloon's bulge.
EFFECT: improved mechanical strength; reduced gas permeability.
8 cl, 2 ex, 4 dwg