Trocar
First Claim
Patent Images
1. A surgical access device comprising:
- a first housing member;
a second housing member;
wherein the first and second housing members are configured to be releasably coupled one to the other;
wherein the first and second housing members include generally aligned apertures shaped and dimensioned for passage of an instrument therethrough; and
a seal offset radially outwardly from the aligned apertures, the seal configured to restrict fluid flow intermediate the first and second housing members.
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Accused Products
Abstract
A surgical access device, such as a trocar, is described. The trocar includes a first housing member selectively coupled to a second housing member, such as with a latching assembly, and a seal which can be compressed when the housing members are coupled together, the seal for preventing or reducing transverse escape of insufflation gas or other fluid from between the coupled together first and second members.
45 Citations
9 Claims
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1. A surgical access device comprising:
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a first housing member; a second housing member; wherein the first and second housing members are configured to be releasably coupled one to the other; wherein the first and second housing members include generally aligned apertures shaped and dimensioned for passage of an instrument therethrough; and a seal offset radially outwardly from the aligned apertures, the seal configured to restrict fluid flow intermediate the first and second housing members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A trocar comprising:
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a cannula having a passageway extending in an axial direction; a housing disposed at a proximal end of the cannula, the housing having a proximal opening for receiving an instrument, and the housing comprising first and second housing components configured to be selectively coupled together; a first seal operative to seal around an instrument passing through the housing; a second seal operative to restrict fluid flow in an axial direction when no instrument extends through the housing; and a deformable seal separate from the first and second seals, the deformable seal operative to restrict fluid flow between generally opposed portions of the first and second housing components when the first and second components are coupled together.
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Specification