Scalpel with a double grind blade edge and detachable handle
First Claim
1. A surgical scalpel comprising:
- a) a scalpel blade having a proximal end and a distal end, said proximal end having a proximally facing end surface;
b) a plastic connector having a proximal end and a distal end, said connector distal end completely and inseparably surrounding and coupling to said proximal end and proximally facing end surface of said scalpel blade;
c) said proximal end of said connector having a female coupling half including a generally rectangular opening at a proximal termination of said connector and a tapered cavity defined by four walls extending distally from said opening and terminating at a proximally facing coupling surface proximal of said proximally facing end surface of said scalpel blade to define a spacing between said scalpel blade and said cavity, two of said walls tapering toward one another in a distal direction from said proximal termination of said connector;
d) a scalpel handle having a proximal end and a distal end, said distal end of said handle having a tapered male coupling half including four walls having configurations and orientations corresponding to the four walls of said female coupling half, whereby said male coupling half is tightly received within said female coupling half to releasably couple said scalpel blade to said scalpel handle.
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Accused Products
Abstract
A scalpel having a blade with a fitting molded about or assembled to its proximal end with the fitting having a proximally facing opening sized to receive an end of a distal portion of a detachable handle. The handle includes a proximal portion designed to be gripped by the surgeon and a distal portion including a male coupling half designed to be received within the proximal opening of the fitting, which proximal opening is configured as a female coupling half. The proximal and distal portions of the handle are angled with respect to one another defining an angle from about 0°-10°. The male coupling half may be inserted within the female coupling half in either one of two diametrically opposed orientations. Thus, due to the angulation between the proximal portion of the handle and the distal portion of the handle, the proximal portion of the handle is either angled downwardly or upwardly with respect to the axis of the blade itself. The handle may be attached to the blade in either one of these two positions depending upon the particular surgical step that is being carried out by the surgeon. The blade itself is provided with a double grind which enhances the sharpness and longetivity of the blade. In the preferred embodiment, the blade includes a primary grind defining an angle of 6°-10° per side and a secondary and final grind of 14°-18° per side. The blade itself is made of a thickness of from 0.020-0.029 inches, and, if desired, the cutting surface of the scalpel blade may be coated with a very thin layer of zirconium nitride or other coating material as disclosed.
108 Citations
11 Claims
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1. A surgical scalpel comprising:
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a) a scalpel blade having a proximal end and a distal end, said proximal end having a proximally facing end surface;
b) a plastic connector having a proximal end and a distal end, said connector distal end completely and inseparably surrounding and coupling to said proximal end and proximally facing end surface of said scalpel blade;
c) said proximal end of said connector having a female coupling half including a generally rectangular opening at a proximal termination of said connector and a tapered cavity defined by four walls extending distally from said opening and terminating at a proximally facing coupling surface proximal of said proximally facing end surface of said scalpel blade to define a spacing between said scalpel blade and said cavity, two of said walls tapering toward one another in a distal direction from said proximal termination of said connector;
d) a scalpel handle having a proximal end and a distal end, said distal end of said handle having a tapered male coupling half including four walls having configurations and orientations corresponding to the four walls of said female coupling half, whereby said male coupling half is tightly received within said female coupling half to releasably couple said scalpel blade to said scalpel handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification