Surgical access devices and methods providing seal movement in predefined movement regions

摘要

Various methods and devices are provided for allowing multiple surgical instruments to be inserted into sealing elements of a single surgical access device. The sealing elements can be movable along predefined pathways within the device to allow surgical instruments inserted through the sealing elements to be moved laterally, rotationally, angularly, and vertically relative to a central longitudinal axis of the device for ease of manipulation within a patient's body while maintaining insufflation.

主权项

1. A surgical device, comprising:
a housing defining a working channel configured to provide access to a surgical site, the housing including
a base member having formed therein a first hole defining a first hole area and a second hole defining a second hole area, anda flexible member having formed therein a first opening defining a first opening area, and a second opening defining a second opening area, the first opening being aligned with the first hole and the first opening area being less than the first hole area, and the second opening being aligned with the second hole and the second opening area being less than the second hole area, and the flexible member being configured to provide a fluid seal of the working channel; a first sealing element seated in the first opening in a sealed relationship with the flexible member, the first sealing element being configured to provide a fluid seal around a first instrument inserted therethrough; and a second sealing element seated in the second opening in a sealed relationship with the flexible member, the second sealing element being configured to provide a fluid seal around a second instrument inserted therethrough; wherein the first sealing element is movable within the first hole relative to both the base member and the second sealing element, movement of the first sealing element being configured to cause deformation of the flexible member while maintaining the sealed relationship with the flexible member; and wherein the second sealing element is movable within the second hole relative to both the base member and the first sealing element, movement of the second sealing element being configured to cause deformation of the flexible member while maintaining the sealed relationship with the flexible member.