Surgical knife safety handle
First Claim
1. A surgical knife safety handle for both ophthalmic and non-ophthalmic applications, comprising:
- a handle body having a longitudinal axis;
a knife holder for carrying a knife blade at a distal end of said handle body;
a guard having an enlarged distal end which extends beyond an outer perimeter of said handle body to facilitate user contact with said enlarged distal end for handle orientation and control,wherein said guard is configured to at least partially enclose a knife blade carried by said knife holder, at least one of said knife holder and said guard being longitudinally moveable with respect to said handle body; and
a positioning mechanism for allowing a user to longitudinally move said at least one of said knife holder and said guard to selectively expose or cover said knife blade.
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0 Petitions
Accused Products
Abstract
A surgical knife safety device having a handle, a blade connected to the handle, and a guard carried by the handle for sliding movement between a retracted position in which the blade is exposed for use, and an extended position for covering the sharp cutting edge of the blade. In the retracted position, an enlarged guard radius is provided at the distal end of the handle to allow improved handle control and blade orientation. The enlarged guard radius is positioned to allow the user to firmly grip a large distal handle portion which is preferably molded as a single piece with the blade holder, preventing unwanted blade or handle movement due to guard mechanism tolerances.
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Citations
28 Claims
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1. A surgical knife safety handle for both ophthalmic and non-ophthalmic applications, comprising:
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a handle body having a longitudinal axis; a knife holder for carrying a knife blade at a distal end of said handle body; a guard having an enlarged distal end which extends beyond an outer perimeter of said handle body to facilitate user contact with said enlarged distal end for handle orientation and control, wherein said guard is configured to at least partially enclose a knife blade carried by said knife holder, at least one of said knife holder and said guard being longitudinally moveable with respect to said handle body; and a positioning mechanism for allowing a user to longitudinally move said at least one of said knife holder and said guard to selectively expose or cover said knife blade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A surgical knife safety handle for both ophthalmic and non-ophthalmic applications, comprising:
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a handle body having a longitudinal axis; a knife holder for carrying a knife blade at a distal end of said handle body; a guard having an enlarged distal end which extends beyond an outer perimeter of said handle body to facilitate user contact with said enlarged distal end for handle orientation and control, wherein said guard is configured to at least partially enclose a knife blade carried by said knife holder, said guard being external to said handle body and longitudinally moveable with respect to said handle body; and a positioning mechanism for allowing a user to longitudinally move said guard to selectively expose or cover said knife blade. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A surgical knife safety handle for both ophthalmic and non-ophthalmic applications, comprising:
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a handle body; a knife holder for carrying a knife blade at a distal end of said handle body; and a guard for selectively covering or exposing said knife blade, said guard having an enlarged distal end which extends beyond an outer perimeter of said handle body to facilitate user contact with said enlarged distal end for handle orientation and control. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A surgical knife safety handle for both ophthalmic and non-ophthalmic applications, comprising:
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a handle body having a longitudinal axis and at least one detent; a knife holder for carrying a knife blade at a distal end of said handle body; a guard having an enlarged distal end which extends beyond an outer perimeter of said handle body to facilitate user contact with said enlarged distal end for handle orientation and control, wherein said guard is configured to at least partially enclose a knife blade carried by said knife holder, at least one of said knife holder and said guard being longitudinally moveable with respect to said handle body, wherein said detent releasably secures said at least one of said knife holder and said guard at a position with respect to said handle body; and a positioning mechanism for allowing a user to longitudinally move said at least one of said knife holder and said guard to selectively expose or cover said knife blade. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification