ErgoClick™ Mouse Clicking Device

From the official website:

Mouse without lifting a finger.
The ErgoClick uses your left palm to perform left, right and double click actions - simply by shifting the weight of your palm.

The ErgoClick is ideal for people who suffer from trigger finger or simply find clicking the mouse to be a painful aspect of their computer interface. Now you can use your left palm to click, while using a traditional mouse in your right hand for cursor control, just as before.

ErgoClick™ Features:

Why use the palm?

When you click your mouse (usually with your index finger) you are using the flexor muscles in your hands, which are used to make a fist (or curl your fingers toward the palm). The extensor muscles are used to open your hand, or extend / uncurl your fingers. The average computer user needs to click their mouse (in a typical 8 hour shift) several thousands times in a day. This can lead to the flexor muscles becoming much stronger than the extensor muscles, which will make the muscles in your hands and arms more subject to fatigue and can lead to RSI related injuries including "trigger finger".

Description of Carpal Tunnel Syndrome

What is Trigger Finger?
Trigger finger involves the tendons in the hand that bend the finger. The tendons connect the muscles of the forearm with the bones of the fingers. Each tendon is covered by a slick lining or sheath. When you bend your fingers, the tendons glide back and forth.

When the tendon sheath becomes inflamed, it swells and may develop a knot or thickening in the tendon. The knot passes through the sheath as the finger bends, but gets stuck as the finger straightens. This causes further irritation and results in a vicious circle of irritation, swelling, catching and more irritation until finally, the finger locks in a bent position.

How Does it Work?

The palm of the right hand is used to position the pointer on the screen (1 on the diagram at right) as always with your mouse, trackball or other pointing device. The palm of the left hand is used only to click (2 on the diagram at right). With a slight movement of your palm you can generate clicks and double-clicks (only a single click is needed for Double Click) By using the palm to click rather than the fingers, your hand can maintain a relaxed neutral supported posture, and by simply shifting the orientation of your palm slightly you can generate clicks. This product works best with a compact keyboard to maximize the desktop space immediately in front of the user.

Where are the Buttons?

Button 1: Left Click
Buttons 2 and 3: Double Click (you only need to click once)
Dial 4: Click Force Adjustment Dial.



How Hard is the Button to Press?
The ErgoClick has a unique feature which is not available in any other keyboard or traditional mouse currently on the market - an adjustable clicking force. You can adjust the actuation force of the button from 30 grams to 300 grams, creating as light or as strong a touch as required. Even at the lightest force setting of 30 grams, the click sensation provided is highly tactile and responsive.

Specifications
Width: 2.5" Wide
Depth: 3.5" Deep
Height: 1.5" High

Price: $65.00

Source Kinesis-Ergo.com