Abstract: Described herein are examples of medical devices which include a rigid dome and a torus channel. The rigid dome has a hemispherical geometry with an open side to surround a surgical site. The rigid dome has a concave geometry to bound the surgical site, a dome vacuum port to provide fluid communication for a vacuum source to reduce a pressure within the rigid dome, an aperture to provide access to the surgical site, and a septum to form a penetrable barrier at the aperture to access the surgical site. The torus channel is coupled to the rigid dome to extend along a periphery of the rigid dome. The torus channel has a partial toroidal geometry forming a ring around the rigid dome. The torus channel includes a channel vacuum port to provide fluid communication for a vacuum source to reduce a pressure within an interior of the torus channel.

Abstract: Medical devices for use in the creation of a temporary pneumoperitoneum include a rigid dome, a sealing element, a retaining band, a septum, and a vacuum port. The rigid dome includes first and second dome sections. The first dome section engages with the second dome section to form the rigid dome. The retaining band applies a force to secure the first dome section relative to the second dome section. The sealing element seals the first and second dome sections. The septum engages at an aperture between the first and second dome sections. The vacuum port connects a vacuum source to the rigid dome to reduce a pressure on an interior of the rigid dome.