Surgical instruments for making precise incisions in a cardiac v

Details Surgical instruments for making precise incisions in a cardiac v Surgical instruments for making precise incisions in a cardiac v

1996-02-20

1998-07-07

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606170, A61B 1732

Patent

active

057761540

ABSTRACT:
Surgical instruments and methods for making substantially linear incisions, especially through the wall of vessels, such as arteries, specifically designed for coronary artery bypass graft procedures (CABG) on the beating heart. The invention is particularly useful to create the incision in the artery to which a bypass graft is sewn, typically the left anterior descending artery (LAD). The instruments allow incisions to be rapidly made, precisely measured, and cleanly formed so that a bypass graft can be rapidly sewn in place, without undue trauma to surrounding tissue and excessive loss of blood. In one embodiment, a hand-held instrument has a cutting edge formed on the interior edge of a curved blade fixed near the end of the instrument. The tip of the blade has a point for penetrating the vessel wall which may have several alternate shapes to facilitate penetration of the vessel wall while minimizing trauma to the surrounding tissue. In another embodiment the hand-held instrument includes a moveable member which creates an incision by engaging a cutting blade against a stop, cutting tissue therebetween, the stop including a pointed tip similar to the previous embodiment. In another embodiment, the instrument features a motion-canceling member which compensates for the movement of the target surface to be incised. This embodiment has a cutting blade which is manipulated from a handle which is isolated from the movement of the tissue containing or proximate to the target of the incision.

REFERENCES:
patent: 5304190 (1994-04-01), Reckelhoff et al.
patent: 5314440 (1994-05-01), Shapiro
patent: 5397333 (1995-03-01), Knoepfler
patent: 5562693 (1996-10-01), Devlin et al.
"Direct Myocardial Revascularization by Saphenous Vein Graft," R.G. Favaloro, M.D.; D.B. Effler, M.D.; L.K. Groves, M.D.; W.G. Sheldon, M.D.; and F.M. Sones, Jr., M.D. The Annals of Thoracic Surgery, vol. 10, No. 2, Aug., 1970.
Geister product insert for Article No. 16-1020, Diamond Knife for Coronary Surgery.

Affiliated with

Also associated with

Rating

Surgical instruments for making precise incisions in a cardiac v does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surgical instruments for making precise incisions in a cardiac v, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surgical instruments for making precise incisions in a cardiac v will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1200424