Patent ID: 7675505

Claim:
An accessory for a computer mouse, the computer mouse being operable by a user's hand having a palm, a thumb and an index finger, wherein the user's index finger curls when relaxed, the computer mouse having a front end, a rear end, an upper surface, and an upward facing, depressible mouse button positioned at the front end of the mouse, the accessory comprising: a finger support; and means for attaching the finger support to the upper surface of the computer mouse, such that the finger support extends upward from the upper surface of the computer mouse under the user's index finger when a portion of the user's palm rests on the upper surface of the computer mouse at the rear end of the computer mouse and the user's index finger is directed toward the mouse button at the front end of the computer mouse, wherein the finger support includes an upper support surface shaped such that when the user relaxes the index finger, thereby allowing the index finger to curl, the upper support surface of the finger support substantially conforms to the curl of the user's relaxed index finger and supports the index finger such that the tip of the index finger resides above and proximate to the mouse button without depressing the mouse button, while allowing the user to thereafter flex the tip of the index finger downward to depress the mouse button without removing the index finger from the upper support surface, and wherein the finger support includes a lateral recess shaped and positioned to receive the thumb of the user's hand.