Business Segment, Geographic Areas and Major Customers

9 Months Ended

Sep. 30, 2011

Business Segment, Geographic Areas and Major Customers [Abstract]

Business Segment, Geographic Areas and Major Customers

Note 15. Business Segment, Geographic Areas and Major Customers

For financial reporting purposes, we have one reportable segment which designs, manufactures and markets medical devices for the treatment of advanced heart failure. Generally, products are sold to customers located in the United States through our clinical trials, as commercial products to customers in Europe and under special access in other countries. Product sales attributed to a country or region are based on the location of the customer to whom the products are sold. Long-lived assets are primarily held in the United States.

Product sales by geographic location are as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in thousands)	2011		2010		2011		2010
United States	$	7,606	$	3,880	$	19,795	$	8,427
Germany		8,569		6,415		22,281		17,254
International, excluding Germany		5,165		3,522		17,628		8,596
	$	21,340	$	13,817	$	59,704	$	34,277

For the three and nine months ended September 30, 2011, no customers individually accounted for more than 10% of product sales in the respective periods. For the three and nine months ended September 30, 2010, one customer accounted for approximately 18% of product sales in both periods. As the majority of our revenue is generated outside of the U.S., we are dependent on favorable economic and regulatory environments for our products in Europe and other countries outside of the U.S.

The percentage of our revenue generated in the U.S. has increased for the three and nine months ended September 30, 2011 as compared to the same periods in 2010 primarily due to enrollment in our ENDURANCE destination therapy trial which commenced in August 2010 and has continued in 2011.