Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Patent
1992-12-17
1994-11-01
Pellegrino, Stephen C.
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
606170, 606180, A61B 1732
Patent
active
053604326
ABSTRACT:
An abrasive drive shaft atherectomy device for removing stenotic tissue from an artery. The device includes a rotational atherectomy apparatus having a flexible, elongated drive shaft having a central lumen and a segment, near its distal end, coated with an abrasive material to define an abrasive segment. In one embodiment the device includes a special guide wire having a generally straight proximal portion, a distal end portion, and a flexible intermediate positioning segment. The positioning segment has a predetermined curved shape such that when the abrasive segment of the drive shaft is advanced over the guide wire to a position along the curved positioning segment, such curved segment positions the abrasive segment laterally away from the longitudinal axis of the proximal portion of the drive shaft. In another embodiment a conventional, generally straight guide wire is utilized, along with a separate positioning wire. The positioning wire is slidably secured, at its distal end to the guide wire so that the positioning wire can be moved proximally and distally with respect to the guide wire. The positioning wire includes a distal positioning segment having a predetermined shape. Rather than being advanced over the guide wire, the drive shaft is advanced over the positioning wire. When the drive shaft's abrasive segment is positioned along the predetermined curved shape of positioning wire's positioning segment, the positioning segment positions the abrasive segment laterally away from the guide wire, thus giving control over the lateral position of the burr within the artery. In either embodiment, the device therefore allows selective removal of tissue from one side of an artery, permitting selective treatment of eccentric stenotic lesions without damaging the artery wall, and permitting treatment of lesions generally without blocking blood flow through the artery during use of the device.
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: 4794931 (1989-01-01), Yock
patent: 4887606 (1989-12-01), Yock et al.
patent: 4917097 (1990-04-01), Proudian et al.
patent: 4917103 (1990-04-01), Gambale et al.
patent: 4926858 (1990-05-01), Gifford, III et al.
patent: 4950277 (1990-08-01), Farr
patent: 4979951 (1990-12-01), Simpson
patent: 4984581 (1991-01-01), Stice
patent: 4990134 (1991-02-01), Auth
patent: 5000185 (1991-03-01), Yock
patent: 5007434 (1991-04-01), Doyle et al.
patent: 5010886 (1991-04-01), Passafaro et al.
patent: 5024234 (1991-06-01), Leary et al.
patent: 5029588 (1991-07-01), Yock et al.
patent: 5047040 (1991-09-01), Simpson et al.
patent: 5053044 (1991-10-01), Mueller et al.
patent: 5054492 (1991-10-01), Scribner et al.
patent: 5067489 (1991-11-01), Lind
patent: 5071424 (1991-12-01), Reger
patent: 5074871 (1991-12-01), Groshong
patent: 5092873 (1992-03-01), Simpson et al.
patent: 5100424 (1992-03-01), Jang et al.
patent: 5100425 (1992-03-01), Fishell et al.
patent: 5217474 (1993-06-01), Zacca et al.
Gilmore, H. W., et al, "Instrumentation," Operative Density, 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 Curretage," Abrasive Technology Inc., Westerville, Ohio USA.
"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 Ultrasound Devices," International Journal of Cardiac Imaging, 4:79-88, 1989.
Kaihoi Gregory P.
Lewis William
Pellegrino Stephen C.
Shturman Cardiology Systems, Inc.
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