EP0913125B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ultrasonics scalpel blade
Assignee: Ethicon Endo Surgery Inc
•
Filing: 1993-01-29
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Granted: 2003-09-03
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Expires: 2013-01-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas W. Davison
- 👤 Berndard F. Galat
- 👤 Stephen Dimatteo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 22:49
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B2017/320072; A61B2017/320074; A61B2017/320075
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
158 words
An ultrasonic scalpel blade (50) comprising a blade coupler (49) having a blade body (54) and
a shank (52) extending from said blade body (54) for coupling with a source of ultrasonic energy
and transmitting the energy to said blade body (54), said body (54) having substantially straight
opposing side edges (56,58) and a tip (60) opposite said shank (52), one of said side edges (56) having a
recess (62) formed therein comprising a sharpened edge and defining a hook portion
between said one side edge (56) and said tip (60) for tensioning tissue as the blade (50) is displaced
along the tissue, thereby facilitating cutting and coagulation of the tissue upon
application of ultrasonic energy to the tissue, characterised in that the side edge (58) opposite
said one side edge (56) includes an elongated sharpened edge and in that said tip (60) has a flat,
rectilinearly extending non-sharpened end surface extending between said opposite side edge (56,58).
Claim 2
Dependent Claim
25 words
A blade (50) according to claim 1, wherein the sharpened edge in said hook portion is
formed to an angle within a range of 30-70°.
Claim 3
Dependent Claim
13 words
A blade (50) according to Claim 2, wherein said angle is about 30°.
Claim 4
Dependent Claim
13 words
A blade (50) according to Claim 2, wherein said angle is about 50°.
Claim 5
Dependent Claim
32 words
A blade (50) according to any one of the preceding claims, wherein said elongated
sharpened edge (58) has facets along opposite side faces thereof forming an included angle
of at least 44°.
Claim 6
Dependent Claim
32 words
A blade (50) according to any one of the preceding claims, wherein the non-sharpened
flat end surface (60) extends in a direction generally normal to the side faces of the
scalpel blade.
Claim 7
Dependent Claim
30 words
A blade (50) according to any one of the preceding claims, wherein the hook portion (62)
has a hook radius which is 25%±5% of the width of the blade (50).
Claim 8
Dependent Claim
42 words
A blade (50) according to any one of the preceding claims in combination with a
handle (14), an ultrasonic power element (20) carried by said handle (14) and means for transmitting
ultrasonic energy from said power element (20) to said blade (50).
References Cited (Backward Citations)
No citation records indexed.
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