Claims
- 1. A surgical knife for facilitating controlled lengthening of previously-formed incision in tissue by a predetermined length comprising:
- a blade including
- a sharp edge disposed along an edge surface of the knife in a first plane for cutting, and
- a dull edge disposed along an edge surface of the knife in a second plane, said second plane being offset from said first plane by a wall having a length of said predetermined length, said dull edge being adapted for abutting a wall portion of the previously-formed incision when the blade is moved said predetermined length substantially along a path defined by the previously-formed incision, said dull edge thereby preventing said sharp edge from travelling farther than said predetermined length, said blade having a bevel terminating at said sharp edge and originating from a location spaced from and between said first and second planes said second plane being offset from said first plane by a second wall, said second wall having a length of said predetermined length such that said second wall and said dull edge are perpendicular to each other, said wall and said second wall facing each other and being separated from each other by a gap, and said wall, said second wall and said dull edge forming a notch in said blade.
- 2. A surgical knife as in claim 1, wherein said location is disposed in a third plane, said first-mentioned wall including a sharp edge portion that lies between said first plane and said third plane.
- 3. A surgical knife as in claim 2, wherein a remainder of said wall is free of said sharp edge portion.
Parent Case Info
This is a continuation of application Ser. No. 08/104,901, filed Aug. 12, 1993, now abandoned.
US Referenced Citations (5)
Non-Patent Literature Citations (2)
Entry |
Comparison of the Standard Combined (Bidirectional) Radial Keratotomy Technique With the Undercut Technique in Human Donor Eyes, Parks, et al., Journal of Refractive Surgery, vol. 12, Jan./Feb. 1996, pp. 77-84. |
Coopervision Publication (2 pages) 1985. |
Continuations (1)
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Number |
Date |
Country |
Parent |
104901 |
Aug 1993 |
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