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US 2026/0199048 A1Published application
Shipping cover with locking mechanism
AssigneeCovidien LP
InventorsLogamurugaraj SHANMUGAVEL, Shaik Ahmed S. HUSSAIN, Roanit A. FERNANDES
Life of this patent
Estimating the term…
Abstract
A tool assembly of a surgical stapling device includes a reload assembly and a channel member that defines a cavity to receive the reload assembly. The reload assembly includes a staple cartridge and a shipping cover that is secured to the staple cartridge. The shipping cover includes structure to obstruct removal of the shipping cover from the staple cartridge until after the reload assembly is loaded into the cavity defined by the channel member.
Claims20
A tool assembly comprising:
- a reload assembly including:
- a shipping cover defining a longitudinal axis and including a cover plate and lock members, the cover plate having outer edges that are substantially parallel to the longitudinal axis, one of the lock members extending downwardly from each of the outer edges of the cover plate, each of the lock members formed from a resilient material and including a locking surface, the lock members movable from locked positions to unlocked positions;
- and
- a staple cartridge including a cartridge body, staples, and pushers, the cartridge body defining a knife slot and staple slots positioned on each side of the knife slot, the staples and pushers received within the staple slots, the cartridge body including a tissue engaging surface, side walls that extend downwardly from opposite sides of the tissue engaging surface, and shoulders that extend along opposite sides of the tissue engaging surface, each of the side walls of the cartridge body supporting a tab having a substantially planar lower surface, the locking surfaces of the lock members engageable with the substantially planar lower surface of the tabs to secure the shipping cover to the cartridge body of the staple cartridge;
- and
- a channel member including side walls and a bottom wall, the side walls of the channel member and the bottom wall of the channel member defining a cavity that receives the staple cartridge, each of the side walls of the channel member supporting a release member and including an upper surface that supports the shoulders of the cartridge body, the release members positioned to engage the lock members as the reload assembly is loaded into the cavity of the channel member to move the lock members from the locked positions to the unlocked positions to facilitate separation of the shipping cover from the staple cartridge.
3 more elements
The tool assembly of claim 3, wherein the at least one retaining member includes raised surfaces to increase frictional contact between the at least one retaining member and the cartridge body.
A stapling device comprising:
- a handle assembly;
- an elongate body having a proximal portion and a distal portion, the proximal portion coupled to the handle assembly;
- and
- a tool assembly including:
- a reload assembly supported on the distal portion of the elongate body, the reload assembly including:
- a shipping cover defining a longitudinal axis and including a cover plate and lock members, the cover plate having outer edges that are substantially parallel to the longitudinal axis, one of the lock members extending downwardly from each of the outer edges of the cover plate, each of the lock members formed from a resilient material and including a locking surface, the lock members movable from locked positions to unlocked positions;
- and
- a staple cartridge including a cartridge body, staples, and pushers, the cartridge body defining a knife slot and staple slots positioned on each side of the knife slot, the staples and pushers received within the staple slots, the cartridge body including a tissue engaging surface, side walls that extend downwardly from opposite sides of the tissue engaging surface, and shoulders that extend along opposite sides of the tissue engaging surface, each of the side walls of the cartridge body supporting a tab having a substantially planar lower surface, the locking surfaces of the lock members engageable with the substantially planar lower surface of the tabs to secure the shipping cover to the cartridge body of the staple cartridge;
- and
- a channel member including side walls and a bottom wall, the side walls of the channel member and the bottom wall of the channel member defining a cavity, the staple cartridge received within the cavity, each of the side walls of the channel member supporting a release member and including an upper surface that supports the shoulders of the cartridge body, the release members positioned to engage the lock members as the reload assembly is loaded into the cavity of the channel member to move the lock members from the locked positions to the unlocked positions and facilitate separation of the shipping cover from the staple cartridge.
7 more elements
A reload assembly comprising:
- a shipping cover defining a longitudinal axis and including a cover plate and lock members, the cover plate having outer edges that are substantially parallel to the longitudinal axis, one of the lock members extending downwardly from each of the outer edges of the cover plate, each of the lock members formed from a resilient material and including a locking surface, the lock members movable from locked positions to unlocked positions;
- a staple cartridge including a cartridge body, staples, and pushers, the cartridge body defining a knife slot and staple slots positioned on each side of the knife slot that receive the staples and pushers, the cartridge body including a tissue engaging surface and side walls that extend downwardly from opposite sides of the tissue engaging surface, each of the side walls of the cartridge body supporting a tab that has a substantially planar lower surface, the locking surfaces of the lock members engageable with the substantially planar lower surface of the tabs to secure the shipping cover to the cartridge body of the staple cartridge.
Dependencies are inferred from the claim text.