Kenneth R Perry

US Patent:

58171436, Oct 6, 1998

Filed:

Jul 2, 1996

Appl. No.:

8/674393

Inventors:

Kenneth Perry - Lago Vista TX

International Classification:

A61N 700

US Classification:

607 88

Abstract:

An apparatus and method for selective marking using natural or artificial light (10) includes a semi-rigid, flexible design (12) with thread holes (14) in the periphery. A beveled edge (16) is provided around the design edge so that top (18) angles away from bottom (20) along the beveled edge (16). Additionally, a gripping edge (22) is provided so that when the semi-rigid, flexible design (12) is attached to a user's clothing and the semi-rigid, flexible design (12) is brought in contact in the location desired on the user's skin, the semi-rigid, flexible design (12) does not slip or move from its original position. In a preferred embodiment, a universal retainer (24) is provided with interior space (26) and retaining edge (28) for removably receiving a variety of different semi-rigid, flexible designs (12). When exposed to natural or artificial light, a tatoo-like design is created. In another embodiment, a non-threaded, permanent retainer (36) is provided with flexible retaining posts (38).

US Patent:

20170086994, Mar 30, 2017

Filed:

Dec 14, 2016

Appl. No.:

15/378483

Inventors:

- Tempe AZ, US
Peter K. Kratsch - Leander TX, US
Kenneth E. Perry - Bainbridge Island WA, US

International Classification:

A61F 2/88
A61F 2/915

Abstract:

A stent includes a central portion of helically wound undulations formed of struts, cylindrical end portions, and transition zones between the helical portion and the cylindrical portions. According to a first aspect of the invention, the torsional flexibility of the stent is maximized by having bridges connecting adjacent windings be interrupted by the maximum possible number of undulations. In one embodiment, each winding includes nineteen undulations around the circumference; bridges are provided every five undulations. According to a second aspect of the invention, uniform opening of the transition zone is achieved by altering the width, and thereby the flexibility, of a series of struts in accordance with their lengths. Specifically, the long transition zone struts are made wider.