Patent MY-197668-A (MY)
Title: Device for safe positioning a coronary stent within coronary arteries and method therefor
Inventor: Trapeznikov Vladimir Borisovich
IPC: A61F2/95
Filed: 2017-07-27
Abstract: The present invention is suitable for use in medicine for maximally accurate, fast and safe positioning a coronary stent in case of uncomplicated and complicated coronary bed lesions as well as for stenting renal, visceral arteries. The claimed device comprises a housing (1) formed of a front part (5) and rear part (10) connected to each other by a circumferentially extending slot (8) so that the rear part (10) of the housing (1) is rotatable, a runner (14) with a cap (26) screwed on the runner thread (19), a collet (20) with hooks (21) accommodated in the runner (14) so at to be rotatable around its axis, a retainer (23) with ears (24), wherein the runner cap (26) is arranged inside the retainer (23). When the device is prepared for use, the coronary stent carried by a delivery system is first progressively inserted inside the device and then the coronary stent on the delivery system (31) is manually advanced to an affected area of a coronary artery, the delivery system (31) is fixed within the device and is positioned within a coronary artery by means of rotating the rear part of the housing (10). In the second exemplary embodiment, the device comprises a housing (1) formed of a front part (5) and a rear part (10) connected to each other by a circumferentially extending slot (8) so that the rear part of the housing (10) is rotatable, a runner (14) with a cap (26) screwed on the runner thread (19), a clamp (35) with flaps (34), said clamp (35) formed integrally with the runner (14) and accommodated in the runner (14), a retainer (23) with ears (24), wherein the runner cap (26) is arranged inside the retainer (23). In the third exemplary embodiment, the device comprises a housing (1) formed of a front part (5) and a rear part (10) connected to each other by a circumferentially extending slot (8) so that the rear part (10) of the housing (1) is rotatable, a runner (14) with a cap (26) screwed on the runner thread (19), a clamp (35) with flaps (34), said clamp (35) accommodated in the runner (14) so as to be rotatable around its axis, a retainer (23) with ears (24), wherein the runner cap (26) is arranged inside the retainer (23). In the fourth exemplary embodiment, the device comprises a housing (1) formed of a front part (5) and a rear part (10) connected to each other by a circumferentially extending slot (8) so that the rear part (10) of the housing (1) is rotatable rear part (10) of the housing (1), a runner (14) with a cap (26) screwed on the runner thread (19), a rubber bush (42) provided with cone-shaped end surfaces and accommodated in the runner cap (26), retainer (23) with ears (24), wherein the runner cap (26) is arranged inside the retainer (23). When the device according to all embodiments is prepared for use, a coronary stent carried by a delivery system is first progressively inserted inside the device and then the coronary stent carried by the delivery system is advanced manually to an affected area of a coronary artery, the delivery system is fixed inside the device and is positioned within a coronary artery by means of rotating the rear part (10) of the housing (1).