REPLACEABLE STAPLING HEAD, REPLACEABLE NEEDLE CARTRIDGE AND STAPLE Russian patent published in 2017 - IPC A61B17/04 

FIELD: medicine.

SUBSTANCE: replaceable stapling head for a stapler equipped with a drive unit with a drive motor includes a stapling part consisting of a curved ligature needle, axes containing bases, and a group of rollers mounted on the axes inside the stapling part. The bent ligature needle is configured to move along a circular path defined by a group of rollers. At least one roller is made as a drive one from the drive motor to move the bent ligature needle along a circular path. At least one axis is mounted within the stapling part with a possibility of rotation around its base. The stapling part comprises a biasing means for biasing of at least one axis together with the roller mounted thereon in the direction of the bent ligature needle. The biasing means is a spring plate, arranged parallel to the circular path of bent ligature needle movement. The replaceable needle cartridge is characterized by the possibility of its installation in the above replaceable stapling head. The stapler includes a control unit with a drive motor and a control unit configured to control the drive motor, and the above replaceable stapling head.

EFFECT: increased versatility and reliability and reduced bulkiness of the stapler as a whole and of its component parts while improving the quality of sutures applied thereby, improved stapler, with a possibility to be used together with existing standard-sized ligature needles.

16 cl, 69 dwg