CLOSING SYSTEMS FOR BLOCKING SURGICAL INSTRUMENTS Russian patent published in 2019 - IPC A61B17/72 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to surgical instruments, and in various embodiments – to surgical cutting and suturing tools and cartridges with staples for them. Assembly of stapling tool comprises cassette support part, staple cassette, stop, sliding element and displacing element. Cassette support part comprises a rotary slot, wherein the rotary slot comprises a first part defining a closing path and a second portion comprising a block. Staple cartridge is inserted inside the cassette support part. Staple cartridge comprises staples stored therein and slides made to withdraw staples from the staple cartridge. Stop is installed with possibility of movement on cassette support part. Stop includes a stapling part configured to deform the staples. Stop is movable between an open position and a closed position. Stop comprises shoe arranged to displace in rotary slot. Sliding element is located with the possibility of sliding in the cassette support part. Stop is movable relative to the sliding element. Displaceable element is configured to displace the shoe inside the interlocking to prevent movement of the anvil from the open position to the closed position when the staple cartridge is not located in the cassette support part. Staple cartridge is configured to engage the sliding member and push the shoe from the slot inside the first part of the rotary slot, when the staple cartridge is located in the cassette support part and allows the shoe to move along the closing path, so that the stop is moved from the open position to the closed position.

EFFECT: use of the invention provides the possibility of tissue incision and stapling.

4 cl, 60 dwg