A reinforced textile film material has been produced, based on graft copolymers of collagen with acrylic acid and methacrylic acid esters. IR and PMR spectra have been used to determine the chemical structure of the material, and its physicomechanical properties have been studied.

Synthesized graft copolymers of chloroprene rubber with acrylic acid in a solution of a mixture of dimethylformamide and benzene, in the presence of potassium persulfate. The gravimetric method determined the orders of the reaction rate by the concentrations of acrylic acid (2.0) and potassium persulfate (1.2), the total activation energy of the process (24.4 kJ/mol). It was found that the degree of grafting increases up to 140% with an increase in the concentration of the monomer, initiator, temperature, and process time. The efficiency of grafting changes insignificantly with changes in synthesis conditions and has a high value (67%–91%) over a wide range of concentrations, temperatures, and times. With an increase in the concentration of acrylic acid and a process time of up to 8 h, the molecular weight of the grafted polyacrylic acid chains increases to 38,000. IR Fourier, 1H, and 13C NMR spectroscopic studies established the mechanism of graft copolymerization. Radical active centers are formed as a result of hydrogen abstraction from the rubber molecule after interaction with potassium persulfate. Copolymers synthesized at a mass ratio of rubber:acrylic acid from 1:0.5 to 1:2, have excellent adhesion to the surface of the skin and textile material.

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Clinical cases of the use of ultrasound-guided Lumbar erector spinae plane block as postoperative analgesia in patients with total hip replacement. The method allows providing analgesia during the day after surgery with a minimum need for additional drug use; No side effects and complications.

Clinical cases of the use of continuous ultrasound-guided Serratus anterior plane block in patients with severe combined trauma, dominant chest trauma and multiple rib fractures. The method allows for excellent long-term analgesia without the need for additional administration of the drug, there are no side effects.