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US 9,931,118 B2Granted
Reinforced battery for a surgical instrument
AssigneeEthicon Endo-Surgery, Inc.
InventorsFrederick E. Shelton, IV, David C. Yates, Jeffrey S. Swayze, Jason L. Harris, Andrew T. Beckman
Life of this patent
Estimating the term…
Abstract
A battery assembly is disclosed which includes a housing and one or more battery cells position in the housing. The battery assembly further comprises features configured to absorb an impact force and protect the battery cells. The battery assembly further comprises features configured to accommodate the thermal expansion of the battery cells.
Claims19
A surgical instrument, comprising:
- a housing;
- a motor;
- and
- a battery assembly attachable to said housing of said surgical instrument, said battery assembly comprising:
- a battery cell configured to provide electrical energy to said motor;
- and
- a battery housing, comprising:
- a support housing configured to support said battery cell;
- and
- a shock absorbing element configured to absorb shock provided by an impact force, wherein said shock absorbing element is configured to crumple when an impact force is applied to said shock absorbing element,
- wherein said shock absorbing element is replaceable, and
- wherein said shock absorbing element comprises attachment means configured to permit said shock absorbing element to be attached to said battery assembly in a snap-fit fashion.
9 more elements
A surgical instrument, comprising:
- a housing;
- a motor;
- and
- a battery assembly attachable to said housing of said surgical instrument, said battery assembly comprising:
- a battery cell configured to provide electrical energy to said motor;
- and
- a battery housing, comprising:
- a support housing configured to support said battery cell;
- and
- a shock absorbing element configured to absorb shock provided by an impact force, wherein said shock absorbing element is configured to crumple when an impact force is applied to said shock absorbing element,
- wherein, when said shock absorbing element crumples, said shock absorbing element deforms in an inward direction which still permits the attachment of said battery assembly to said housing of said surgical instrument after said shock absorbing element has been impacted.
8 more elements
A battery assembly for use with a surgical instrument, said battery assembly comprising:
- a battery cell;
- an electrical contact configured to transmit electrical energy provided by said battery cell to the surgical instrument when said battery assembly is attached to the surgical instrument;
- a first housing configured to support said battery cell;
- a second housing configured to house said first housing;
- and
- a shock absorbing layer positioned between said first housing and said second housing, wherein said shock absorbing layer comprises a lattice structure,
- wherein said lattice structure comprises a plurality of cells, said plurality of cells comprising:
- an inner cell comprising an inner planar wall, wherein said inner planar wall is oriented at least substantially parallel said first housing;
- and
- an outer cell comprising an outer planar wall, wherein said outer planar wall is oriented at least substantially parallel said second housing.
7 more elements
A battery assembly for use with a surgical instrument, said battery assembly comprising:
- a battery cell;
- an electrical contact configured to transmit electrical energy provided by said battery cell to the surgical instrument when said battery assembly is attached to the surgical instrument;
- a first housing configured to support said battery cell;
- a second housing configured to house said first housing;
- and
- a shock absorbing layer positioned between said first housing and said second housing, wherein said shock absorbing layer comprises a lattice structure,
- wherein said battery assembly further comprises a shock absorbing cap, said shock absorbing cap comprising:
- an outer lattice;
- and
- an inner lattice, wherein said outer lattice is more dense than said inner lattice.
7 more elements
A battery assembly for use with a surgical instrument, said battery assembly comprising:
- a battery cell configured to provide power to the surgical instrument;
- a housing, comprising:
- a heat reflecting shell;
- a heat sink layer;
- and
- a compressible layer positioned between said heat sink layer and said heat reflecting shell, wherein said compressible layer is configured to flex in response to expansion of said battery cell.
3 more elements
Dependencies are inferred from the claim text.