Surgical access device including lateral moving seal cooperating with bellows attached to proximal wall of cannula housing
AssigneeCovidien LP
InventorGennady Kleyman
Life of this patent
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Abstract
A surgical access device includes a seal assembly having an outer seal housing, an inner seal housing, and a seal cooperating with the inner seal housing, the outer seal housing defining a central longitudinal axis and having a longitudinal passage for receiving at least one surgical object therethrough. The surgical access device also includes a bellows configured to engage at least a portion of the inner seal housing cooperating with the seal, the bellows dimensioned and adapted to establish a biasing relationship with the seal. The seal is adapted for lateral movement relative to the central longitudinal axis of the outer seal housing and the bellows is configured to be attached to a proximal wall of the outer seal housing.
Claims20
A surgical access device, comprising:
- a seal assembly including a cannula housing, an inner seal housing, and a seal cooperating with the inner seal housing, the cannula housing defining a central longitudinal axis and having a longitudinal passage for receiving at least one surgical object therethrough;
- and
- a bellows having a first end engaging the cannula housing and a second end supporting the inner seal housing, the first end being spaced radially inward of the second end, the bellows dimensioned and adapted to establish a biasing relationship with the seal;
- wherein the seal is adapted for lateral movement relative to the central longitudinal axis of the cannula housing.
A seal assembly, comprising:
- a cannula assembly;
- and
- a cannula sleeve extending distally from the cannula assembly,
- the cannula assembly comprising:
- a cannula housing, an inner seal housing, and a seal cooperating with the inner seal housing, the cannula housing defining a central longitudinal axis and having a proximally extending inner wall defining a longitudinal passage for receiving at least one surgical object therethrough;
- and
- a bellows configured to engage at least a portion of the inner seal housing cooperating with the seal, the bellows dimensioned and adapted to establish a biasing relationship with the seal;
- wherein the seal is adapted for lateral movement relative to the central longitudinal axis of the cannula housing and the bellows is attached to a radial surface of the proximally extending inner wall of the cannula housing.
Dependencies are inferred from the claim text.