ACQUISITIONS

We acquire stock in companies and various assets that continue to support our capital deployment and product development strategies. In the six months 2018 and 2017 cash paid for acquisitions, net of cash acquired, was $767 and $38.

In February 2018 we completed the acquisition of Entellus Medical, Inc. (Entellus) for $24.00 per share, or an aggregate purchase price of $697, net of cash acquired. Entellus is focused on delivering superior patient and physician experiences through products designed for the minimally invasive treatment of various ear, nose and throat (ENT) disease states. Entellus is part of the Neurotechnology business within Neurotechnology and Spine. Goodwill attributable to the acquisition of Entellus is not deductible for tax purposes.

In September 2017 we completed the acquisition of NOVADAQ Technologies Inc. (NOVADAQ) for an aggregate purchase price of $674, net of cash acquired. NOVADAQ is a leading developer of fluorescence imaging technology that provides surgeons with visualization of blood flow in vessels and related tissue perfusion in cardiac, cardiovascular, gastrointestinal, plastic, microsurgical, and reconstructive procedures. NOVADAQ is part of the Endoscopy business within the MedSurg segment. Goodwill attributable to the acquisition of NOVADAQ is not deductible for tax purposes.

Purchase price allocations for Entellus and NOVADAQ were based on preliminary valuations. Our estimates and assumptions are subject to change within the measurement period.



Purchase Price Allocation of Acquired Net Assets	2018			2017
Purchase Price Allocation of Acquired Net Assets	Entellus			NOVADAQ
Purchase price, net of cash acquired	$	697		$	674

Tangible assets:
Accounts receivable	$	17		$	11
Inventory	14			38
Other assets	66			9
Contingent consideration	(78		)	—
Other liabilities	(92		)	(58		)
Intangible assets:
Customer relationship	33			18
Trade name	—			1
Developed technology and patents	256			133
Goodwill	481			522
	$	697		$	674
Weighted-average life of intangible assets	16			15



Estimated Amortization Expense
Remainder of 2018		2019		2020		2021		2022
$	198	$	379	$	354	$	343	$	333