Rotary shafts – gudgeons – housings – and flexible couplings for ro – Torque transmitted via flexible element – Element has plural convolutions wound about rotational axis
Patent
1996-02-26
1998-10-06
Walsh, Donald P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Torque transmitted via flexible element
Element has plural convolutions wound about rotational axis
464174, 464902, F16C 100
Patent
active
058169237
ABSTRACT:
A flexible composite drive shaft used with a flexible vascular atherectomy catheter for connecting a proximal rotating drive member and a distal rotatable working member. The flexible composite drive shaft includes a core of specially selected highly elastic shape memory alloy surrounded by a flexible torsional reinforcing helical wound member and a covering of a smooth polymeric material penetrating the interstices between the wound member and the outer surface of the core. The material of the core, the relative winding direction of the reinforcing member and the direction of angular offset between the reinforcing member and the core are selected to optimize the consistency of the rotational characteristics of the drive shaft in use. The cooperation between the shape memory elastic core, the helical reinforcing member and the interpenetrating polymer provides a composite drive shaft which has improved resistance to kinking and binding failure while traversing tight radii, narrow blood vessel pathways during axial translation and high speed rotational operation.
REFERENCES:
patent: Re33569 (1991-04-01), Gifford, III et al.
patent: 3043120 (1962-07-01), Waldron
patent: 3581523 (1971-06-01), Bartholomew
patent: 3726133 (1973-04-01), Morgan
patent: 4601283 (1986-07-01), Chikama
patent: 4655629 (1987-04-01), Flaherty
patent: 4771774 (1988-09-01), Simpson
patent: 4781186 (1988-11-01), Simpson
patent: 4794931 (1989-01-01), Yock
patent: 4979951 (1990-12-01), Simpson
patent: 5000185 (1991-03-01), Yock
patent: 5007917 (1991-04-01), Evans
patent: 5041089 (1991-08-01), Mueller
patent: 5071425 (1991-12-01), Gifford, III et al.
patent: 5072759 (1991-12-01), Moore
patent: 5078722 (1992-01-01), Stevens
patent: 5084010 (1992-01-01), Plaia
patent: 5085662 (1992-02-01), Willard
patent: 5087265 (1992-02-01), Summers
patent: 5092873 (1992-03-01), Simpson et al.
patent: 5100424 (1992-03-01), Jang
patent: 5101682 (1992-04-01), Radisch, Jr. et al.
patent: 5102415 (1992-04-01), Guenther
patent: 5108411 (1992-04-01), McKenzie
patent: 5135531 (1992-08-01), Shiber
patent: 5156610 (1992-10-01), Reger
patent: 5158564 (1992-10-01), Schnepp-Pesch
patent: 5165421 (1992-11-01), Fleischhacker et al.
patent: 5226909 (1993-07-01), Evans
patent: 5239890 (1993-08-01), Sosnoski et al.
patent: 5250059 (1993-10-01), Andreas
patent: 5360432 (1994-11-01), Shturman
patent: 5514115 (1996-05-01), Frantzen et al.
Co Fred Henrik
Milo Charles
Webler William Earl
Chaikin, Esq. Douglas A.
Devices for Vascular Intervention, Inc.
Rivera William A.
Walsh Donald P.
LandOfFree
Flexible composite drive shaft for transmitting torque does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible composite drive shaft for transmitting torque, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible composite drive shaft for transmitting torque will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-72420