Linear Staple with a Multi-Functional Retaining Pin Subassembly
AssigneeEthicon Endo-Surgery, Inc.
InventorsShan Wan, Xiangchun Hong, Lian Xu, Wei Sun
Life of this patent
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Abstract
The present invention provides a linear stapler having a multi-functional retaining pin subassembly. The linear stapler comprises a handle stem connecting an anvil to a handle, and the retaining pin subassembly is movably supported on the handle stem and comprises a connecting cover having a retaining pin extending from the connecting cover. The present invention also provides a multi-functional retaining pin subassembly. The retaining pin subassembly can achieve cartridge alignment and tissue retention during the firing of the stapler and protect tissue from unintended damage.
Claims12
A linear stapler (1), comprising:
- a body (2) for supporting a cartridge (9) having one or more surgical staples, wherein the body (2) has a driver (15) for acting on the cartridge (9) to drive the surgical staples therefrom;
- the body (2) has a handle stem (20) supporting an anvil (7) against which tissue can be pressed by the cartridge (9) for stapling;
- and
- a retaining pin subassembly (10) movably supported on the handle stem (20), wherein the retaining pin subassembly (10) comprises a connecting cover (12) having a retaining pin (11) extending therefrom, the connecting cover (12) being capable of covering an opening of the handle stem (20).
A retaining pin subassembly (10) for use in a linear stapler (1), the linear stapler (1) comprises a handle stem (20) connecting an anvil (7) to a handle (4), wherein the retaining pin subassembly (10) is movably supported on the handle stem (20) and comprises a connecting cover (12) having a retaining pin (11) extending therefrom, the connecting cover (12) being capable of covering an opening of the handle stem (20).
Dependencies are inferred from the claim text.