Surgical knife
First Claim
Patent Images
1. A scalpel comprising:
- a back;
an edge having a distal end;
a curved tip, wherein the edge and the back are joined at the tip;
a plurality of alternating projections and recesses located along the edge, wherein a sharp edge is formed on a distal portion of a plurality of the projections or the recesses, wherein said edge having a distal end has a pair of inclined surfaces, said inclined surfaces being joined by a curved surface having a radius of curvature in the range of 0.2 to twenty μ
m.
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Accused Products
Abstract
A scalpel suitable for Caesarian sections and myometrium sections. The scalpel includes two sides, an edge, a back, and a curved tip. Projections and recesses are alternately formed along the edge. Sharp edges are formed on the projections or the recesses.
18 Citations
5 Claims
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1. A scalpel comprising:
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a back;
an edge having a distal end;
a curved tip, wherein the edge and the back are joined at the tip;
a plurality of alternating projections and recesses located along the edge, wherein a sharp edge is formed on a distal portion of a plurality of the projections or the recesses, wherein said edge having a distal end has a pair of inclined surfaces, said inclined surfaces being joined by a curved surface having a radius of curvature in the range of 0.2 to twenty μ
m.
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2. A Caesarian section and myometrium section scalpel comprising:
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a back;
an edge having a distal end;
a curved tip, wherein the edge and the back are joined at the tip;
a plurality of alternating projections and recesses located along said edge having a distal end, wherein a sharp edge is formed on a distal portion of a plurality of the projections or the recesses;
wherein said edge having a distal end is tapered and has a pair of inclined surfaces that are joined together at said distal end, said inclined surfaces are joined by a curved surface having a radius of curvature in the range of 0.2 to twenty μ
m.- View Dependent Claims (3, 4)
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5. A scalpel comprising:
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a back;
an edge having a distal end;
curved tip, wherein the edge and the back are joined at the tip; and
a plurality of uniformly alternating projections and recesses located along the edge, wherein the distal end of the edge has alternating sharp and relatively dull sections such that either the projections or the recesses have the relatively dull sections and the other have the sharp sections, wherein said edge having a distal end has a pair of inclined surfaces joined by a curved surface having a radius of curvature in the range of 0.2 to twenty μ
m.
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Specification
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- Resources
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Current AssigneeKai R&D Center Co., Ltd.
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Original AssigneeKai R&D Center Co., Ltd.
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InventorsIshii, Shiro, Endo, Masahiro
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Primary Examiner(s)Dawson, Glenn K.
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Application NumberUS09/287,690Time in Patent Office847 DaysField of Search303/465.5, 303/465.6, 606/167, 606/107, 606/126, 606/169, 606/159, 606/119, 606/121, 606/125, 604/19, 604/22US Class Current606/167CPC Class CodesA61B 17/3213 with detachable bladesA61B 17/42 Gynaecological or obstetric...
