Surgery – Instruments – Cutting – puncturing or piercing
Reexamination Certificate
1999-12-09
2001-03-06
Thaler, Michael H. (Department: 3731)
Surgery
Instruments
Cutting, puncturing or piercing
C606S183000, C606S187000, C606S167000
Reexamination Certificate
active
06197039
ABSTRACT:
BACKGROUND OF THE INVENTION
As explained in U.S. Pat. No. 5,858,019, in order to implant hair elements into bald regions of the scalp of a patient, the hair elements are removed from other portions of the body of the patient and are surgically implanted into extremely small openings previously cut into the bald regions. This patent discloses a combination of overlying interconnected layers with a plurality of surgical cutting units imbedded in these layers in spaced apart positions. Each unit has a plurality of knife elements. These elements have downwardly extending cutting points. When the patented device is disposed for use in engagement with a selected portion of the scalp of a patient, the surgeon presses down upon the top most layer and causes the points of the knife elements to engage the selected portion of the scalp.
However, the patented device has a large number of knife elements and is used to treat a corresponding large portion of the scalp. In many implant operations, it is necessary to implant hair elements into a small scalp area which is much too small to be implanted using the patented device. The present invention is directed toward a new type of surgical implement which can be used in the implant operations utilizing a small scalp area. This implement can be used for cutting three extremely small closely spaced openings simultaneously in the scalp.
Other objects and advantages of this invention will either be explained or will become apparent hereinafter.
SUMMARY OF THE INVENTION
In accordance with the principles of this invention, the surgical implement utilizes first, second and third like elongated thin vertical closely spaced apart cutting blades. Each blade terminates at its upper end in an arrow head type point. All of these points lie in a common horizontal plane. A horizontal base member is disposed below the lower ends of the blades. The member has three vertically upwardly extending extensions, each of which is integral with the lower end of each corresponding blade.
A vertical hollow handle can be disposed below the base member, with the base member being disposed within the upper end of the handle and the blades extending outwardly from the upper end of the handle at right angles to the handle and member. The width of each blade between the arrow head and the corresponding extension is no larger than the maximum width of the arrow head. The width of each extension is larger than the maximum width of the of the arrow head.
In use the surgeon grasps the handle and presses the blades via their arrow heads into the scalp of the patient until the lower ends of the blades are prevented from entering the scalp because the vertical extensions block further entry. In this manner three small closely spaced openings are cut into the scalp so that the hair implant process can be continued.
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patent: 5858019 (1999-01-01), Ashraf
patent: 5922000 (1999-07-01), Chodorow
patent: 5989273 (1999-11-01), Arnold
patent: 6030404 (2000-02-01), Lawson et al.
patent: 6083196 (2000-07-01), Trautman et al.
Droesch Kristen
Thaler Michael H.
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