In the Bjork-Shiley tilting disc valve, evidence from in vivo cycling indicates a disc rotation, either as a random change of orientation or a more consistent rotation. This disc rotation provides a more even distribution of wear and gives a disc lifetime of significantly more than 20 to 30...
Central haemodynamics at rest and during exercise before and after operation with the Björk-Shiley tilting disc valve in patients with aortic incompetence. Scand J Thorac Cardiovasc Surg. 1973; 7 (3):214–225. [ PubMed ]Bjork VO, Henze A, Holmgren A: Central haemodynamics at rest and ...
NA;Biomedical Safety & Standards
Peterffy A, Henze A, Savidge GF, Landou C, Bj6rk VO (1980) Late thrombotic malfunction of the Bj6rk-Shiley tilting disc valve in the tricuspid position: principles for recognition and manage- ment. Scand J Thorac Cardiovasc Surg 14:33-41...
Digital radiographic analysis of single-leg separations (SLS) in the outlet struts of Bjork-Shiley convexo-concave valves," Computer Assisted Radiology Car'93 - Powell, Cornhill, et al. - 1993K.A. Powell, J.F. Cornhill, S.N. Nissen, J.G. Chandler, A.H. Abolfathi, E.L. LaPresto...
Emergency recognition and treatment of strut fracture and disc embolization in patients with Bjo篓rk-Shiley valve prosthesisMing Zhe ChenNaoum A. BaladiSalim M. WaljiDiana LamElias S. HannaGarrett LeeDean T. Mason
Twenty-two out of 46 consecutive patients with aortic incompetence, who were operated upon with the Bj枚rk-Shiley disc valve during the period January 1969 to November 1971, were subjected to clinical and haemo-dynamic pre- and postoperative studies. Before surgery, this material was characterized...
Shiley kept FDA, public in dark about valve defect - Food and Drug Administration; Bjork-Shiley concavo-convex heart valves
van der Graaf, "Single-leg strut fractures in explanted Bjork-Shiley valves," Lancet, vol. 343, pp. 9-12, 1994.de Mol BA, Kallewaard M, McLellan RB, van Herwerden LA, Defauw JJ, van der Graaf Y. Single-leg strut fractures in explanted Bjork-Shiley valves. Lancet 1994;343:9 -12...
A more durable carbon has been tested in a Kay-Shiley disc valve, but demonstrated a too pronounced strut wear to be acceptable. A Bjork-Shiley valve with a pyrolytic carbon disc is under investigation. Furthermore, a thicker-edged delrin disc would produce a significantly more marked strut ...