Patent US3783037A successfully refreshed from Google Patents.
EP0376562A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improved resonator for surgical handpiece
Assignee: Covidien AG
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Filing: 1989-12-15
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Granted: —
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Expires: 2009-12-15
Abstract
Abstract An ultrasonic resonant vibrator comprising an ultrasonic vibration magnetostrictive transducer (1) and a resonant member (2,3) having a proximal end and a distal end for transmitting ultrasonic vibrations to an operating member (3) which is part of the resonant structure. The vibrator comprises an integral substantially rigid column having a central axis with fins extending radially relative to said axis and having a longitudinal hole defining a tunnel (8) centered along the central axis, wherein at least part of the resonant member is located within the tunnel; and a surgical handpiece incorporating such a vibrator.
Inventors
- 👤 Alan Broadwin
- 👤 Claus Kleesattel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/22004; A61B17/22012; A61B2217/00; A61B2217/002; A61B2217/005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
An ultrasonic resonant vibrator comprising a resonant member having a proximal end and a distal end and an ultrasonic vibration magnetostrictive transducer for generating ultrasonic vibrations which are transmitted from said transducer to said resonant member, wherein said transducer comprises a plurality of elongated strips of magnetostrictive material, each strip having a proximal end and a distal end and being attached to its adjacent strip at both of said ends to form an integral substantially rigid column 1 having a central axis with fins extending radially relative to said axis and having a longitudinal hole defining a central tunnel centered along said central axis, wherein at least part of said resonant member is located within said tunnel and is attached at its said proximal end to an inside end of said tunnel.
Claim 2
Dependent Claim
132 words
An ultrasonic resonant vibrator comprising a resonant member having a proximal end and a distal end and an ultrasonic vibration magnetostrictive transducer for generating ultrasonic vibrations which are transmitted from said transducer to said resonant member, wherein said transducer comprises a plurality of elongated strips of magnetostrictive material, each strip having a proximal end and a distal end and being attached to its adjacent strip at both of said ends to form an integral substantially rigid column 1 having a central axis with fins extending radially relative to said axis and having a longitudinal hole defining a central tunnel centered along said central axis, wherein at least part of said resonant member is located within said tunnel and is attached at its said proximal end to an inside end of said tunnel.
Claim 3
Dependent Claim
49 words
A vibrator according to claim 1, in which said resonant member comprises a connecting portion having a proximal end and a distal end, wherein said proximal end corresponds to the proximal end of the resonant member and said distal end is adapted to be connected to an operating member.
Claim 4
Dependent Claim
17 words
A vibrator according to claim 1, in which said central tunnel is of substantially circular cross section.
Claim 5
Dependent Claim
38 words
A vibrator according to claim 1, in which each of said elongated strips of said magnetostrictive transducer is of substantially V-shaped cross section and each arm of the V is formed by the longitudinal length of the strip.
Claim 6
Dependent Claim
29 words
A vibrator according to claim 4, in which the attachment of the ends of each strip to the ends of each adjacent strip is made by brazing or welding.
Claim 7
Dependent Claim
61 words
A vibrator according to claim 4, in which each arm of each V-shaped strip is in touching contact with an arm of an immediately adjacent strip along the complete longitudinal length of the strip to form a radially extending fin and the resulting fins from a radial pattern around said central tunnel extending the length of the resulting substantially rigid column.
Claim 8
Dependent Claim
15 words
A vibrator according to claim 2, in which said operating member is a surgical tool.
Claim 9
Dependent Claim
34 words
A vibrator according to claim 2, in which said connecting portion includes a central hole extending along its length and said hole has a diameter large enough to accommodate a tube for transporting fluid.
References Cited (Backward Citations)
No citation records indexed.
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