Venous valve cutter for the incision of valve leaflets in situ

Details Venous valve cutter for the incision of valve leaflets in situ Venous valve cutter for the incision of valve leaflets in situ

1982-05-25

1985-01-15

Kamm, William E.

Surgery

Truss

Pad

128303R, A61F 1732

Patent

active

044933215

ABSTRACT:
A blade is drawn by means of a rod attached centrally of its cutting edge so that a portion of the blade extends on either side of the rod. An elongate centering device precedes the blade and its protective encasement so as to ensure that the device will not engage side branches of the vein. A catheter follows the valve cutter so that fluid may be introduced into the vein to snap valves shut ahead of the cutting device. The assembly is drawn through a vein by a rod having sufficient torsional rigidity to permit controlled orientation of the blade for efficient engagement and cutting of valve leaflets.

REFERENCES:
patent: 1167014 (1916-01-01), O'Brien
patent: 2029495 (1936-02-01), Lowe
patent: 2779334 (1957-01-01), Sandborn
patent: 3762416 (1973-10-01), Moss et al.
patent: 3837345 (1974-09-01), Matar
patent: 4273128 (1981-06-01), Lary
patent: 4290427 (1981-09-01), Chin
Kutz, C. M., Hendricks W. C., "New Vein Stripper and Technique of Stripping", Surgery, vol. 29, No. 2, pp. 271-275, 1951.
Peter B. Samuels, M.D. et al.--In Situ Saphenous Vein Arterial Bypass: "A Study of the Anatomy Pertinent To Its Use in Situ as a Bypass Graft with a Description of a New Venous Valvulatome"--The American Surgeon, Feb., 1986, vol. 34, No. 2--pp. 122-130.
E. Skagseth and K. V. Hall--"In Situ Vein Bypass"--Experiences with New Vein Valve Strippers--Scand J. Thor Cardiovasc Surg. 7:53-58, 1973.

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