Blood vessel occlusion trocar

Details Blood vessel occlusion trocar Blood vessel occlusion trocar

1995-06-07

1996-09-17

Jackson, Gary

Surgery

Instruments

Internal pressure applicator

604 96, A61B 1700

Patent

active

055564127

ABSTRACT:
Apparatus in the form of a trocar adapted for penetration of the wall of a blood vessel, such as the ascending aorta, contains an inflatable diaphragm carried in a collapsed condition within the interior of the trocar and an appropriate fluid connection of the diaphragm to a source of inflating fluid effects the expansion of the diaphragm and release from the trocar into occluding relation with the blood vessel wall to obstruct the flow of blood through the occluded passage. The interior of the described trocar is divided into separate fluid conducting passages which, via the provision of appropriately placed openings in the wall of the shell forming the trocar, enables the performance of a multitude of procedures attendant with cardiac surgery by way of a single incision made in the wall of the aorta, such procedures including aortic arterial perfusion in conjunction with heart-lung machine operation; admission of myocardial preservation solution; aortic root pressure measurement and venting and clearing of the heart and aortic root. The invention contemplates use with the apparatus of a pressurizing belt containing an expandable cuff whose operation is coincident with that of the occluder diaphragm to prevent distention of the blood vessel wall and the prospective dangerous conditions resulting therefrom.

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