Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Patent
1998-02-27
2000-05-09
Buiz, Michael
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
606169, 606167, 606114, 606181, 606191, 606194, 606195, 606198, A61B 1722
Patent
active
060598026
ABSTRACT:
A surgical dissecting retractor for harvesting vascular conduits or vessels such as saphenous veins and the like is disclosed which dissects tissue and top and/or side branches from the vessel as it is advanced along a desired segment of the vessel via an entry incision in a patient's skin. The dissecting retractor is inserted while in a closed or "low profile" position to minimize trauma to the vessel and patient. Once installed above the vessel, the retractor is opened and locked to present a relatively "high profile", thereby creating and maintaining an enlarged working space or tunnel in the region between the skin and the vessel being harvested. Completion of the vessel harvesting procedure proceeds with suitable surgical instruments for dissecting, ligating, cauterizing and/or clipping, with or without visualizing devices which comprise further adjunct features of the retractors in accordance with the invention. Upon completion of the harvesting procedure, the dissecting retractor is unlocked to allow it to collapse to the closed position for removal from the harvesting site. A single surgeon can perform the harvesting procedure utilizing fewer instruments and with minimal trauma or damage to the vessel.
REFERENCES:
patent: 5695515 (1997-12-01), Orejola
patent: 5755772 (1998-05-01), Evans et al.
patent: 5797935 (1998-08-01), Barath
patent: 5817127 (1998-10-01), Borodulin et al.
Buiz Michael
Cardiothoracic Systems, Inc.
Ho (Jackie)Tan-Uyen T.
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