Analysis of Reconstructions Cardioesophageal Junction of the Teres Ligament in Treatment Hiatal Hernias

The article's abstract is no available

Sutureless Compression Anastomoses Formation with Use of TiNi Device on the Small Gut

A new device made of nickelid titanium and a way of formation of a sutureless compression anastomosis on the small bowel were developed with the purpose of creating a compression interintestinal anastomosis on the small bowel without the manual portion of seams. 28 sutureless compression anastomosis on the small bowel are created during the experiment. They include 10 «side-to–side» anastomoses, 10 «end-to-end»anastomoses and 8 «end-to-side» anastomoses. Mechanical and biological durability of  anastomoses, terms of compression devices failure, primary permeability of  anastomoses, morphogenesis of a compression seam are studied. No complications connected with the use of the compression device were noted. During the experiment it is proved that all sutureless compression anastomoses created by means of the nickelid titanium device are mechanically and is biologically tight. By the ninth day all the dogs had no compression devices in their abdominal cavities. The histological researches show that the process of neogenesis goes with the minimal symptoms of sclerosis and leads to the full adaptation of all small bowel layers. The new way of the formation of a sutureless compression anastomosis on the small bowel allowed to create a stronger and more reliable anastomosis and thereby to prevent the development of typical complications and to receive more favorable remote results

Compression Anastomoses Formation on the Digestive Tract Organs with Using TiNi Devices

The article contains the results of a study of nickelid titanium devices used for the formation of compression anastomoses in patients with digestive system diseases and describes the techniques of compression fistula formation using these devices. Besides, the article presents clinical experience in the formation of anastomoses between the organs of gastrointestinal tract for the treatment of eighty-seven patients with various pathologies of digestive organs. One hundred and nine compression anastomoses were applied in our clinic. Anastomotic dehiscence was found in three cases (2,7%) which are described in details in the article. In all patients, the devices evacuated from the digestive tract in a natural way. The average period of device rejection accounted for 14 days. Fibrotic scope examination performed after an operation showed that created anastomoses corresponded to the dimensions of used structures. A soft scar by primary healing type was formed on the parts with compression anastomosis. Using nickelid titanium devices for the formation of compression anastomoses between the gastrointestinal organs will improve the quality of fistula formation, reduce mortality and postoperative complications

Laparascopic Hernia Repair with the Use of TiNi-based alloy

The reduction of the endoscopic methods of the inguinal hernia surgical treatment to the everyday practice of the surgery departments led to the better results of treatment. However, the recurrence rate remain sat the level of 2.2-4.4%, and the rate of the intraoperative and postoperative complications is 8%. The paper describes treating 78 patients (59 pations underwent the reduction of the endoscopic methods of the inguinal hernia surgical treatment to the everyday practice of the surgery departments led to the better results of treatment and 19 patients underwent the laparoscopic transabdominal hernia repair with the usage of porous nickelid titanium. in the period from 2000 to 2016. It shows a procedure of installing porous nickelid titanium, gives the obtained results of the procedure and analizes the experience of world literature. The procedure of the laparoscopic hernia repair allows to lessen the injury rate of the surgery, to lessen the possibility of the postoperative complications and to simplify the medical staff work

Antireflux Compression Biliodigestive Anastomoses Formation with the Usage of the TiNi Shape Memory Implant

The usefulness of the anastomotic device for the valve compression anastomoses formation among animals was evaluated. The implant is made of the nickelid titanium alloy (TiNi) in the form of two rounds of the TiNi wire which ends are unbent to the opposite sides. In the area of the unbent rounds the compression isn't carried out, the tissue isn't squeezed. And further there is a formation of the valve. 26antirefluxbiliodigestive compression anastomoses on the small bowel are created during the experiment. They include 13 choledochojejunostomy and 13 cholecystojejunostomy. We studied the terms of the compression devices failure, the mechanical and biological durability of these anastomoses, the primary permeability of anastomoses and carried out the microscopic examination of the compression suture. No complications connected with the use of the compression device were noted. We proved that all the valve compression anastomoses created with using the TiNi shape-memory implant are mechanically and biologically tight. The compression devices eliminated from the zones of anastomoses on the 7th-8th day after the surgery in all cases. The microscopic examination showed the insignificant development of sclerosis in the compression zone and full adaptation of all organ layers. The created valve reduced the reflux of intestinal contents that lessened the probability of development of acute and chronic cholangitis in the postoperative period. The use of the TiNi implant allows to carry out the operation twice quicker. Such anastomosis has high physical durability and small bacteriological permeability.The new way of the formation of valve biliodigestive compression anastomoses allows to create stronger and more reliable anastomoses and prevent the development of typical complications

The influence of Cr concentration on time resolution of GaAs detectors

Investigated in this work were the influence of Cr dopant concentration and technological conditions of doping on photoconductivity (PhC) kinetics, dependence of PhC signal magnitude on voltage applied as well as the dynamic range of a photodetector based on semi-insulating GaAs:Cr. PhC relaxation was measured using a broadband system of registration in the picosecond pulse range, which is based on the oscillograph C7-19, CCD camera and personal computer. Mechanisms of recombination that influence on fast and slow components of the PhC signal were studied. The shortest time of PhC relaxation τ ~ 2.10⁻¹⁰ s was observed in GaAs:Cr samples for the chromium dopant concentration NCr ~ 3.10¹⁷ cm−3. We have found a linear increase of the fast component of PhC with the intensity of excitation as well as a weak dependence at small levels and saturation at the high ones of excitation for the PhC slow component