Methods and devices for accessing a body cavity using a surgical access device with modular seal components

摘要

Methods and devices are provided for providing access through tissue to a surgical site. In one embodiment, a surgical access device can include a hollow tubular member and a modular seal member. The modular seal member can be configured to radially span a lumen of the tubular member and can be removably and replaceably matable to a portion of the tubular member. The access device can also include a plurality of access ports, each of which can be configured to mate with the modular seal member at a respective desired location.

主权项

1. A surgical access device, comprising:
a hollow tubular member having a proximal end, a flexible distal end, and a side wall defining a lumen, the hollow tubular member being configured to be positioned in an opening in tissue of a patient by advancing the flexible distal end through the tissue such that the proximal end is positioned external to the patient and the flexible distal end is positioned within a body cavity of the patient underlying the tissue, the distal end defining a perimeter; and a modular seal member removably and replaceably mated to the distal end of the tubular member such that when the proximal end of the hollow tubular member is positioned external to the patient and the flexible distal end of the hollow tubular member is positioned within the body cavity, a surgical instrument can be inserted through the lumen from outside the patient, pass through the modular seal member, and extend into the body cavity, the seal member being configured to radially span the lumen of the tubular member, wherein the seal member has a plurality of puncturable regions within an interior region thereof, a remainder of the interior region of the seal member having a rigidity that is greater than a rigidity of each of the plurality of puncturable regions, and each of the plurality of puncturable regions being configured to receive at least one access port punctured therethrough.