Space ensuring device

摘要

In a pericardioscopic procedure, without providing an endoscope or surgical instrument with special space ensuring means and without unnecessarily dilating the pericardial space, a space necessary for operation of the endoscope or surgical instrument is ensured, so that maneuverability is improved while suppressing complications. Provided is a space ensuring device comprising: a pericardium pressing part for pressing a pericardium from the pericardial space side; a heart pressing part for pressing the surface of a heart from the pericardial space side; and an interconnecting part interconnecting the pericardium pressing part and the heart pressing part, wherein the interconnecting part generates the resilient force enabling expansion against a pressure applied by a pericardium and a heart so as to ensure a space between the pericardium pressing part and the heart pressing part.

主权项

1. A space ensuring device for a pericardial space between a pericardium and a heart, the space ensuring device comprising:
a pericardium pressing part for pressing the pericardium from the pericardial space side; a heart pressing part for pressing a surface of the heart from the pericardial space side; and an interconnecting part interconnecting the pericardium pressing part and the heart pressing part, wherein the interconnecting part is configured to generate a resilient force enabling expansion of the interconnecting part against a pressure applied by the pericardium and the heart so as to ensure a space between the pericardium pressing part and the heart pressing part, wherein the interconnecting part comprises an interior surface facing the space, an exterior surface substantially opposite the interior surface, a first opening communicating the interior surface and the exterior surface, and a second opening communicating the interior surface and the exterior surface, wherein from the exterior surface toward the interior surface, the first opening is inclined in a direction away from the heart pressing part such that a first instrument inserted through the first opening from the exterior surface toward the interior surface is oriented away from the heart pressing part, and wherein from the exterior surface toward the interior surface, the second opening is inclined in a direction away from the pericardium pressing part such that a second instrument inserted through the second opening from the exterior surface toward the interior surface is oriented away from the pericardium pressing part.