Rainer E Sachse

US Patent:

49502786, Aug 21, 1990

Filed:

Aug 30, 1989

Appl. No.:

7/401505

Inventors:

Hans E. Sachse - 8500 Nuremberg 90, DE
Rainer Sachse - Miami FL

International Classification:

A61F 1732

US Classification:

606170

Abstract:

An endoscope which contains, in a housing, in parallel relationship, a light guide, at least one flushing duct, and a continuously driven shaft which carries at its end, protruding in operation from the tip of the endoscope, a cutting instrument having a plurality of cutting blades. This design makes it possible to remove pieces of tissue, for example, for laboratory tests in a more intact way than was possible with the endoscope according to the parent U. S. Pat. No. 4,756,309. The endoscope disclosed herein lends itself to a wide variety of medical fields.

US Patent:

52017494, Apr 13, 1993

Filed:

Sep 4, 1991

Appl. No.:

7/754846

Inventors:

Rainer E. Sachse - Durham NC
Hans Sachse - 8500 Nurnberg, DE

International Classification:

A61B 1000

US Classification:

606177

Abstract:

A circularly oscillating saw, used mainly in the surgical field which, while having minimal dimensions, must have a high cutting capacity with an atraumatic cool cut, without running hot itself. The saw provides a direct connection of the saw blade with an eccentric and a suitable bearing approximately in the center between the saw blade tip and the eccentric, which provides a circularly oscillating cutting. The saw allows a cut to take place not only in parallel to the saw blade but in all directions of a plane. In addition, contamination of a wound by lubricants and bearing debris is prevented because of the excellent transport of chips and coolant. Also, the saw is to easily cleaned, sterilized and repaired while the manufacturing of this precision instrument is efficient. An internal cooling protects from the saw running-hot and ensures an optimal coolant supply. Drive-side and output-side sealing devices achieve a hermetic sealing-off of the saw mechanism.

US Patent:

47563095, Jul 12, 1988

Filed:

Feb 14, 1986

Appl. No.:

6/829103

Inventors:

Hans-Ernst Sachse - 8500 Nuernberg 90, DE
Rainer E. Sachse - Miami FL

International Classification:

A61B 1732

US Classification:

128305

Abstract:

An endoscope for resecting tissue inside body cavities, the principal feature of which is that the endoscopic tube contains a shaft carrying a grinding or milling head, which allows precise removal of scar tissue or other fairly firm tissue under endoscopic control without leaving irregular or thermally damaged wound sites.