Patents by Inventor Louis E. Humphrey, Jr.

Louis E. Humphrey, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Semi-automatic tissue morcellation device
    Patent number: 5746760
    Abstract: The BTR device of the present invention preferably comprises a housing chamber with an attached hand grip and actuating ringlet positioned to be grasped and pulled toward the hand grip. Inside the housing chamber is a hollow, open-ended, helically-slotted cylindrical element having a diagonal groove formed within the outer surface. A travelling pin, attached to the actuating ringlet, is fitted within the diagonal groove such that movement of the actuating ringlet simultaneously moves the travelling pin and rotates the helically-slotted cylindrical element. Gear teeth on the helically-slotted cylindrical element engage gear teeth on an inner shaft element rotatably positioned within the helically-slotted cylindrical element such that rotation of the helically-slotted cylindrical element is transferred to the inner shaft element.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: May 5, 1998
    Assignee: Laserscope
    Inventor: Louis E. Humphrey, Jr.