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Segment and Geographic Information (Tables)

6 Months Ended

Nov. 30, 2012

Segment and Geographic Information [Abstract]

Summary of total net sales by product category

		Three Months Ended								Six Months Ended
		Nov 30,				Nov 30,				Nov 30,				Nov 30,
		2012				2011				2012				2011
Net Sales by Product Category
Peripheral Vascular		$	45,766			$	23,079			$	89,060			$	44,047
Vascular Access			26,712				15,203				53,342				30,800
Total Vascular		$	72,478			$	38,282			$	142,402			$	74,847
Oncology/Surgery			12,006				19,817				23,239				37,683
Supply Agreement			2,523				—				4,782				—
Total		$	87,007			$	58,099			$	170,423			$	112,530

Summary of net sales for geographic areas

		Three Months Ended								Six Months Ended
		Nov 30,				Nov 30,				Nov 30,				Nov 30,
		2012				2011				2012				2011
Net Sales by Geography
United States		$	69,652			$	49,653			$	137,680			$	96,958
International			17,355				8,446				32,743				15,572
Total		$	87,007			$	58,099			$	170,423			$	112,530

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- Definition

Schedule of net revenue by product group.

+ References

No definition available.

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Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 41

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 38

-Subparagraph b(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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