INTRAVASCULAR PROSTHESIS FOR RESTORING AND/OR KEEPING THE LUMEN OF BLOOD VESSEL (VARIANTS) Russian patent published in 2005 - IPC

FIELD: medicinal equipment.

SUBSTANCE: the present innovation deals with means for restoring and/or keeping the lumen of blood vessel at treating cardio-vascular diseases due to implanting intravascular prostheses. The latter should be designed as a perforated cylindrical tube with grooves of patterned-cellular type which form at initial state periodically repeated rows of oval open rings connected with longitudinal and cross-sectional crosspieces. Repeated rows consist of the cells which in their initial state are of open oval rings the ends of which steadily come into cross-sectional crosspieces to unite these cells into the row. The second row of cells is developed due to mirror image of the first row being connected with the latter with longitudinal crosspieces. Next pairs of cellular rows are connected between each other with longitudinal crosspieces. By another variant for carrying out intravascular prosthesis, the second row of cells should be developed due to shifting the first row for the half of cellular width being connected with it by longitudinal crosspieces, as for the next cellular rows they are connected with longitudinal crosspieces. The method enables to improve flexibility of intravascular prosthesis at initial state and its rigidity at open state.

EFFECT: higher efficiency.

20 cl, 8 dwg