Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Patent
1996-12-02
2000-02-01
Buiz, Michael
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
606170, A61B 1732
Patent
active
060197714
ABSTRACT:
Devices and methods for minimally invasive harvesting of a vessel, especially the saphenous vein for coronary artery bypass grafting, are disclosed which facilitate a minimally invasive vessel harvesting procedure. Generally, an instrument is provided which facilitates introduction of vessel harvesting tools through a minimally invasive incision, and provides the capability to separate the vessel from surrounding tissue while minimizing trauma to the patient and preserving the patency of the vessel. The instrument includes a mechanism for separating the vessel from surrounding tissue and may also include mechanisms for severing side branches from the vessel during the harvesting procedure. In one embodiment, an integrated vessel harvesting assembly is provided which may rotate around a vessel and provides a unitary mechanism for separating the vessel from surrounding tissue and for severing the side branches.
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"An Improved Technique for Long Saphenous Vein Harvesting for Coronary Revascularization," W. Meldrum-Hanna, F.R.A.D.S., D. Ross, F.R.A.C.S. The Annals of Thoracis Surgery, vol. 42, Jul. 1986, pp. 90-92.
Bennett Brian J.
Morejohn Dwight P.
Sepetka Ivan
Buiz Michael
Cardiothoracic Systems, Inc.
Lewis William
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