Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Patent
1993-02-02
1994-05-24
Pellegrino, Stephen C.
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
606170, 606180, A61B 1732
Patent
active
053144384
ABSTRACT:
An abrasive drive shaft atherectomy device for removing stenotic tissue from an artery. The device includes a flexible, elongated drive shaft having a central lumen for receipt of a guide wire therein and around which the drive shaft may be rotated. The drive shaft is made from one or more helically wound wires. Wire turns of the proximal segment of the drive shaft have a generally constant diameter. Wire turns of a segment of the drive shaft near its distal end have an enlarged diameter. At least part of the enlarged diameter segment includes an external coating of an abrasive material to define an abrasive segment of the drive shaft which, when rotated at high speeds, is usable to remove stenotic tissue from an artery. In a preferred embodiment, the device includes a bushing disposed in the enlarged diameter segment for supporting the enlarged diameter turns of the drive shaft. A gap may be provided in the turns of the drive shaft to permit imaging therethrough by an ultrasound imaging device disposed in the central lumen of the drive shaft. Preferably the drive shaft is made from inner and outer coaxial wire layers helically wound in opposite directions so that the outer layer tends to radially contract and the inner layer tends to radially expand when the drive shaft is rotated in a predetermined direction. In one such embodiment, a toroidal collar is positioned between the inner and outer layers of the enlarged diameter abrasive segment of the drive shaft.
REFERENCES:
patent: Re33569 (1991-04-01), Gifford, III et al.
patent: Re33911 (1992-05-01), Samson et al.
patent: 4445509 (1984-05-01), Auth
patent: 4679557 (1987-07-01), Opie et al.
patent: 4781186 (1988-11-01), Simpson et al.
patent: 4926858 (1990-05-01), Gifford, III et al.
patent: 4979951 (1990-12-01), Simpson
patent: 4990134 (1991-02-01), Auth
patent: 5047040 (1991-09-01), Simpson et al.
patent: 5053044 (1991-10-01), Mueller et al.
patent: 5067489 (1991-11-01), Lind
patent: 5071424 (1991-12-01), Reger
patent: 5074871 (1991-12-01), Groshong
patent: 5217474 (1993-06-01), Zacca et al.
"Premier Two Striper.RTM. Crown & Bridge Techniques," Abrasive Technology, Inc., Westerville, Ohio, USA.
Tupac, Robert G., et al, "A Comparison of Cord Gingival Displacement with the Gingitage Technique," The Journal of Prosthetic Dentistry, Nov. 1981, vol. 46, No. 5, pp. 509-515.
Atherectomy, A Physician's Guide, Strategic Business Development, Inc., Kauai, Hawaii 96714 USA, 1990, pp. 1-114.
Bom, N., et al, "Early and Recent Intraluminal Ultrasound Devices," International Journal of Cardiac Imaging, 4:79-88, 1989.
"Rotablator.RTM., a Revolution in Angioplasty," Heart Technology Inc., Bellevue, Washington 98005 USA.
McCarty, Lyle H., "Catheter Clears Coronary Arteries," Design News, Sep. 23, 1991, pp. 88-92.
"Premier Presents Two Striper.RTM. Dental Diamond Instruments," Abrasive Technology Inc., Westerville, Ohio USA.
Gilmore, H. W., et al, "Instrumentation," Operative Dentistry, 4th Ed., Ch. 4, pp. 55, 64-73, The C. V. Mosby Company, 1982.
Gilmore, H. W., et al, Operative Dentistry, 4th Ed., pp. 348-351, 353-354, The C. V. Mosby Company, 1982.
"Premier Two Striper.RTM. Gingival Curettage," Abrasive Technology Inc., Westerville, Ohio USA.
Kaihoi Gregory P.
Lewis William
Pellegrino Stephen C.
Shturman Cardiology Systems, Inc.
LandOfFree
Abrasive drive shaft device for rotational atherectomy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Abrasive drive shaft device for rotational atherectomy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abrasive drive shaft device for rotational atherectomy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1969887