Expandable surgical access port
First Claim
1. A surgical access assembly configured and dimensioned for positioning within an opening in tissue providing access to an internal body cavity, the surgical access assembly comprising a passageway defining a longitudinal axis for passage of a surgical instrument into an internal work site, first and second arms, and third and fourth arms, the first and second arms and the third and fourth arms being configured and dimensioned for relative movement such that the surgical access assembly is reconfigurable between a first configuration, wherein a first transverse dimension is defined, and a second configuration, wherein a second transverse dimension is defined, the first transverse dimension being smaller than the second transverse dimension, the first and second arms being connected at a first point, and the third and fourth arms being connected at a second point such that the distance between the first and second points along the longitudinal axis remains constant during movement of the surgical access assembly between the first and second configurations, the access assembly further including a flexible member connected to at least one of the arms, the flexible member facilitating enlargement of the opening in the tissue during movement of the access assembly from the first configuration to the second configuration.
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Accused Products
Abstract
A surgical access assembly is disclosed that is configured and dimensioned for positioning within an opening in tissue providing access to and internal body cavity to facilitate the passage of a surgical instrument into an internal work site. The surgical access assembly includes first and second arms and third and fourth arms. The first and second arms and the third and fourth arms are configured and dimensioned for relative movement such that the surgical access assembly is reconfigurable between a first configuration, wherein a first transverse dimension is defined, and a second configuration wherein a second transverse dimension is defined. The first transverse dimension is smaller than the second transverse dimension.
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Citations
20 Claims
- 1. A surgical access assembly configured and dimensioned for positioning within an opening in tissue providing access to an internal body cavity, the surgical access assembly comprising a passageway defining a longitudinal axis for passage of a surgical instrument into an internal work site, first and second arms, and third and fourth arms, the first and second arms and the third and fourth arms being configured and dimensioned for relative movement such that the surgical access assembly is reconfigurable between a first configuration, wherein a first transverse dimension is defined, and a second configuration, wherein a second transverse dimension is defined, the first transverse dimension being smaller than the second transverse dimension, the first and second arms being connected at a first point, and the third and fourth arms being connected at a second point such that the distance between the first and second points along the longitudinal axis remains constant during movement of the surgical access assembly between the first and second configurations, the access assembly further including a flexible member connected to at least one of the arms, the flexible member facilitating enlargement of the opening in the tissue during movement of the access assembly from the first configuration to the second configuration.
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17. A surgical access assembly comprising:
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a first member including a first pair of arms having proximal and distal ends; and a second member including a second pair of arms having proximal and distal ends, the surgical access assembly including a passageway defining a longitudinal axis configured to receive a surgical instrument, and being reconfigurable between an initial position, wherein the proximal ends of the first pair of arms define a first distance therebetween and the distal ends of the first pair of arms define a second distance therebetween, and a subsequent position, wherein the proximal ends of the first pair of arms define a third distance therebetween and the distal ends of the first pair of arms define a fourth distance therebetween, the first distance being greater than the third distance, and the fourth distance being greater than the second distance, the access assembly further including a flexible member connected to at least one of the pair of arms, the flexible member facilitating enlargement of the opening in the tissue during movement of the access assembly from the initial position to the subsequent position. - View Dependent Claims (18, 19, 20)
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Specification