Hans H Zwart
Physician in Dayton, OH

6371910, Apr 16, 2002

Nov 10, 1999

09/438811

Hans J. Zwart - Kettering OH
Lawrence R. Tyler - Kettering OH
Thomas J. Palermo - San Jose CA
Kevin Van Bladel - San Mateo CA
Roderick A. Young - Palo Alto CA
James E. Jervis - Atherton CA

General Surgical Innovations, Inc. - Norwalk CT

A61B 132

600207

An inflatable manipulator for organ manipulation during surgery is disclosed. The system typically includes an inflatable balloon connected to an infusion source where the balloon is either coupled to a relatively rigid platform or fitted with a positioning structure such as a pocket. In open heart surgery, the platform is used to position and stabilize the balloon under the heart. In minimally invasive surgery, the balloon fitted with the pocket and can be rolled into a narrow configuration and inserted through a small incision using an insertion device. The insertion device can then be removed once the manipulator is in position. In use, the balloon of the manipulator is inflated by the infusion source thereby elevating and tilting the organ to the desired position for surgical access. Systems including multiple chamber manipulators each with a separate infusion source are also disclosed, as are combined methods for cooling organs during surgery and for using the manipulators to separate adhesions.

6015382, Jan 18, 2000

Oct 16, 1997

8/951799

Hans J. Zwart - Kettering OH
Lawrence R. Tyler - Kettering OH
Thomas J. Palermo - San Jose CA
Kevin Van Bladel - San Mateo CA
Roderick A. Young - Palo Alto CA
James E. Jervis - Atherton CA

General Surgical Innovations, Inc. - Cupertino CA

A61B 1700

600207

An inflatable manipulator for organ manipulation during surgery is disclosed. The system typically includes an inflatable balloon connected to an infusion source where the balloon is either coupled to a relatively rigid platform or fitted with a positioning structure such as a pocket. In open heart surgery, the platform is used to position and stabilize the balloon under the heart. In minimally invasive surgery, the balloon fitted with the pocket and can be rolled into a narrow configuration and inserted through a small incision using an insertion device. The insertion device can then be removed once the manipulator is in position. In use, the balloon of the manipulator is inflated by the infusion source thereby elevating and tilting the organ to the desired position for surgical access. Systems including multiple chamber manipulators each with a separate infusion source are also disclosed, as are combined methods for cooling organs during surgery and for using the manipulators to separate adhesions.

5239841, Aug 31, 1993

Jun 29, 1992

7/906071

Hans Zwart - Dayton OH

A44C 2500

63 2

A spring wire or other spring-like material is formed with a circular ring portion which has a diameter adapted to fit snugly around a nipple of a human breast. The wire or material also forms two overlapping end portions which project outwardly from the ring portion and are compressed together to enlarge the ring portion so that it may be conveniently placed on the nipple and removed from the nipple. When the end portions are released, the ring portion grips the peripheral surface of the nipple. Preferably, the end portions comprise smaller circular rings which may be used to support different forms of jewelry, and the ring portion may also support a decorative element which covers the nipple. The ring portion and end portions are decorated, preferably by plating with a precious metal.

5125244, Jun 30, 1992

Dec 20, 1990

7/631166

Hans Zwart - Dayton OH

A44C 2500

63 2

A spring wire or other sping-like material is formed with a circular ring portion which has a diameter adapted to fit snugly around a nipple of a human breast. The wire or material also forms two overlapping and portions which project outwardly from the ring portion and are compressed together to enlarge the ring portion so that it may be convenient placed on the nipple and removed from the nipple. When the end portions are released, the ring portion grips the peripheral surface of the nipple. Preferably, the end portions comprise smaller circular rings which may be used to support different forms of jewelry, and the ring portion may also support a decorative element which covers the nipple. The ring portion and end portions are decorated, preferably by plating with a precious metal.

4987667, Jan 29, 1991

Apr 3, 1990

7/503728

Hans Zwart - Dayton OH

B21F 4300

291606

A nipple ring comprising a generally circular ring of a size adapted to fit snugly around a nipple provided with two overlapping ends which may be squeezed together to enlarge the effective circumference of the ring so that it may be placed on the nipple and then when the ends are released the ring will fit securely around the nipple. The ends may be fitted with smaller circular rings from which to hold pendant jewelry.